Delivery device for granular food products and food product reservoir

Abstract

This utility model discloses a conveying device for granular food, which includes a conveying cylinder and a conveying screw. The conveying cylinder has a conveying cavity, a feeding channel, and a discharging channel. The feeding channel is connected to the conveying cavity at the upper side of one end of the conveying cylinder, and the discharging channel is connected to the conveying cavity at the lower side of the other end of the conveying cylinder. The conveying screw includes a drive shaft and a screw portion. The opposite ends of the drive shaft are rotatably mounted to the opposite ends of the conveying cylinder. The screw portion is located in the middle of the drive shaft and has elastic conveying blades. The conveying blades extend spirally from the feeding channel to the discharging channel in the conveying cavity of the conveying cylinder. When the granular food enters the conveying cavity through the feeding channel of the conveying cylinder, the granular food is conveyed by the conveying blades to the discharging channel of the conveying cylinder as the conveying screw rotates, and is discharged through the discharging channel of the conveying cylinder.

Description

Technical Field

[0001] This utility model relates to a conveying device, and more particularly to a conveying device and a food storage container for granular food. Background Technology

[0002] Particle-shaped foods, such as rice, millet, coffee beans, cat food, and dog food, typically need to be stored in boxes for preservation. Retrieving these stored granular foods requires a conveying device. For example, in Chinese utility model patent CN210504391U, the inventors disclosed a delayed-speed adjustable screw-type rice conveying device, comprising a barrel-shaped outer shell, a horizontally rotating metering screw inside the shell, and a motor outside the shell. The motor's main shaft extends into the shell and is connected to the metering screw. The top and bottom walls of the shell have an inlet and an outlet, respectively. Below the shell, a vertically extending cylinder with open ends is fixedly connected to the outer shell, and the outer shell and cylinder communicate through the outlet. A cover plate is located directly below the cylinder, hinged to the cylinder via a columnar rotating member. The rotating member has a torsion spring that causes the cover plate to rotate around the axis of the rotating member and close the lower end of the cylinder. Those skilled in the art should understand that, in the prior art, in order to ensure that the motor can effectively transport rice when driving the metering screw to rotate, the blades of the metering screw are required to be close to the inner wall of the outer casing. That is, there is a small gap between the blades of the metering screw and the inner wall of the outer casing. During the transportation of rice, some rice grains may get stuck in this gap. As the metering screw rotates, these rice grains will be crushed by the blades and the outer casing. Therefore, during the transportation of rice, not only will noise be generated, but the rice grains will also be crushed into smaller particles or even powder. Obviously, these smaller particles and powder cannot be discharged from the outer casing and will accumulate inside the outer casing. With the accumulation of smaller particles and powder, the conveying device will inevitably be unable to transport rice. Utility Model Content

[0003] One objective of this invention is to provide a conveying device and a food storage container for granular food, wherein the conveying device can ensure the integrity of the granular food during the conveying process, so as to avoid noise and crushing the granular food into smaller particles or powder.

[0004] According to one aspect of the present invention, the present invention provides a conveying device for conveying granular food, wherein the conveying device comprises:

[0005] A conveying cylinder, wherein the conveying cylinder has a conveying chamber, a feeding channel, and a discharging channel, the feeding channel communicating with the conveying chamber on the upper side of one end of the conveying cylinder, and the discharging channel communicating with the conveying chamber on the lower side of the other end of the conveying cylinder; and

[0006] A conveying screw, wherein the conveying screw includes a drive shaft and a screw section, the opposite ends of the drive shaft are rotatably mounted to the opposite ends of the conveying cylinder, the screw section is disposed in the middle of the drive shaft, and the screw section has an elastic conveying blade, the conveying blade extending spirally from the feed channel of the conveying cylinder to the discharge channel within the conveying cavity of the conveying cylinder, when the granular food enters the conveying cavity through the feed channel of the conveying cylinder, the granular food is conveyed by the conveying blade to the discharge channel of the conveying cylinder as the conveying screw rotates, and is discharged through the discharge channel of the conveying cylinder.

[0007] According to one embodiment of the present invention, the screw section has an elastic reverse thrust blade, the reverse thrust blade and the conveying blade are respectively located on opposite sides of the discharge channel of the conveying cylinder, and the spiral direction of the reverse thrust blade is opposite to the spiral direction of the conveying blade.

[0008] According to one embodiment of the present invention, the screw portion is integrally formed in the middle of the drive shaft.

[0009] According to one embodiment of the present invention, the screw portion is made of silicone material so that the conveying blades of the screw portion are elastic.

[0010] According to one embodiment of the present invention, the surface of the drive shaft has at least one radial groove and at least one circumferential groove, and when the screw portion is integrally formed in the middle of the drive shaft, it forms portions protruding into the radial groove and the circumferential groove of the drive shaft.

[0011] According to one embodiment of the present invention, the conveying cylinder includes a cylinder body and a cylinder cover. The cylinder body has a cylinder cavity and an assembly opening. The assembly opening communicates with the cylinder cavity at one end face of the cylinder body. The cylinder cover is installed on the end face of the cylinder body to close the assembly opening of the cylinder body, thereby forming the conveying cavity of the conveying cylinder between the cylinder body and the cylinder cover. The feed channel of the conveying cylinder is formed on the side of one end of the cylinder body, and the discharge channel of the conveying cylinder is formed on the side of the other end of the cylinder body. The conveying screw is allowed to be installed in the conveying cavity of the conveying cylinder through the assembly opening of the cylinder body, and the opposite ends of the drive shaft are respectively installed on one end of the cylinder body and the cylinder cover through bearings.

[0012] According to one embodiment of the present invention, the conveying device includes a conveying driver, wherein the cylinder cover has a cylinder cover through hole communicating with the conveying cavity, and one end of the drive shaft extends through the cylinder cover through hole and is mounted on the output shaft of the conveying driver so as to be driven by the conveying driver to rotate within the conveying cavity of the conveying cylinder.

[0013] According to one embodiment of the present invention, the conveying cylinder further includes a sealing cover and a sealing ring, and the conveying cylinder has an embedding groove. The sealing cover has a cover body through hole. The sealing cover is stacked on the cylinder cover such that the drive shaft extends into the cover body through hole. The embedding groove of the conveying cylinder is formed between the sealing cover and the cylinder cover. The sealing ring is fitted onto the drive shaft and located in the embedding groove of the conveying cylinder. The conveying drive is fixedly mounted on the sealing cover.

[0014] According to one embodiment of the present invention, the conveying device further includes a door driver and a door unit. The door driver is mounted on the conveying cylinder, and the door unit is drivably connected to the output shaft of the door driver so that the door unit can open and close the discharge channel of the conveying cylinder.

[0015] According to one embodiment of the present invention, the door unit includes a resilient door frame element and a door assembly. The door frame element has a door frame opening and is mounted on the conveying cylinder. The door frame opening of the door frame element communicates with the discharge channel of the conveying cylinder. The door assembly includes a door body, a floating door, and at least one resilient element. The resilient element is disposed between the door body and the floating door. The door body is drivably mounted on the output shaft of the door driver. When the door driver drives the door assembly to rotate downward, the floating door moves away from the door frame element, so that the door unit opens the discharge channel of the conveying cylinder. When the door driver drives the door assembly to rotate upward, the floating door adheres to the door frame element, so that the door unit closes the discharge channel of the conveying cylinder.

[0016] According to another aspect of the present invention, the present invention further provides a food storage device, which includes:

[0017] A cabin, wherein the cabin has a cavity and a bottom opening communicating with the cavity; and

[0018] A conveying device, wherein the conveying device includes:

[0019] A conveying cylinder, wherein the conveying cylinder has a conveying chamber, a feeding channel, and a discharging channel, the feeding channel communicating with the conveying chamber on the upper side of one end of the conveying cylinder, and the discharging channel communicating with the conveying chamber on the lower side of the other end of the conveying cylinder; and

[0020] A conveying screw, wherein the conveying screw includes a drive shaft and a screw section, the opposite ends of the drive shaft are rotatably mounted to the opposite ends of the conveying cylinder, the screw section is disposed in the middle of the drive shaft, and the screw section has an elastic conveying blade, the conveying blade extending spirally from the feed channel of the conveying cylinder to the discharge channel within the conveying cavity of the conveying cylinder, when the granular food enters the conveying cavity through the feed channel of the conveying cylinder, the granular food is conveyed by the conveying blade to the discharge channel of the conveying cylinder as the conveying screw rotates, and discharged through the discharge channel of the conveying cylinder, wherein the conveying cylinder is installed in the chamber, and the feed channel of the conveying cylinder is connected to the bottom opening of the chamber. Attached Figure Description

[0021] Figure 1 This is a perspective view of a conveying device for granular food according to a preferred embodiment of the present invention.

[0022] Figure 2 This is a perspective view of the conveying device according to the above-described preferred embodiment of the present invention.

[0023] Figure 3 This is an exploded view of the conveying device according to the above-described preferred embodiment of the present invention.

[0024] Figure 4 This is another exploded view of the conveying device according to the above-described preferred embodiment of the present invention.

[0025] Figure 5 This is a three-dimensional cross-sectional view of the conveying device according to the above-described preferred embodiment of the present invention.

[0026] Figure 6 This is a plan view of a cross-sectional schematic diagram of one state of the conveying device according to the above-described preferred embodiment of the present invention.

[0027] Figure 7 This is a cross-sectional view from a plan view of another state of the conveying device according to the above-described preferred embodiment of the present invention.

[0028] Figure 8This is a perspective view of a drive shaft of a conveying screw in the conveying device according to the above-described preferred embodiment of the present invention.

[0029] Figure 9 This is a perspective view of a food storage device according to a preferred embodiment of the present invention.

[0030] Figure 10 This is a cross-sectional schematic diagram of the food storage device according to the above-described preferred embodiment of the present invention. Detailed Implementation

[0031] Before describing any embodiment of this invention in detail, it should be understood that the invention is not limited in its application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention is capable of other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” or “having” and variations thereof herein is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links.

[0032] Furthermore, firstly, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., 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, 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, the above terms should not be construed as a limitation on this utility model. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0033] Refer to the accompanying drawings of the specification of this utility model. Figures 1 to 8 A preferred embodiment of the present invention, a conveying device 10 for granular food, will be disclosed and described in the following description, wherein the conveying device 10 includes a conveying cylinder 11 and a conveying screw 12.

[0034] Specifically, the conveying cylinder 11 has a conveying cavity 111, a feeding channel 112, and a discharging channel 113. The feeding channel 112 is connected to the conveying cavity 111 at the upper side of one end of the conveying cylinder 11, and the discharging channel 113 is connected to the conveying cavity 111 at the lower side of the other end of the conveying cylinder 11. The conveying screw 12 includes a drive shaft 121 and a screw portion 122. The opposite ends of the drive shaft 121 are rotatably mounted to the opposite ends of the conveying cylinder 11. The screw portion 122 is disposed in the middle of the drive shaft 121 and has an elastic conveying blade 1221. The conveying blade 1221 extends spirally from the feeding channel 112 to the discharging channel 113 within the conveying cavity 111 of the conveying cylinder 11. When granular food enters the conveying chamber 111 through the feeding channel 112 of the conveying cylinder 11, the granular food is conveyed by the conveying blades 1221 to the discharge channel 113 of the conveying cylinder 11 as the conveying screw 12 rotates, and is discharged through the discharge channel 113 of the conveying cylinder 11, thereby realizing the conveying of the granular food.

[0035] Unlike existing technologies, the conveying blade 1221 of the screw section 122 is elastic. During the process of conveying the granular food by the conveying device 10, even if a part of the granular food gets stuck in the gap between the conveying blade 1221 and the conveying cylinder 11, the conveying blade 1221 deforms, so that the conveying device 10 can avoid the conveying blade 1221 and the conveying cylinder 11 crushing the granular food. Thus, the conveying device 10 can ensure the integrity of the granular food during the process of conveying the granular food, so as to avoid noise and crushing the granular food into smaller particles or powder.

[0036] For ease of description, see appendix. Figures 1 to 8 In this specific example of the conveying device 10 of the present invention shown, the end of the conveying cylinder 11 where the feeding channel 112 is located is defined as a feeding end 1101, and the end of the conveying cylinder 11 where the discharging channel 113 is located is defined as a discharging end 1102. That is, the conveying cylinder 11 has the feeding end 1101 and the discharging end 1102 corresponding to the feeding end 1101.

[0037] In the appendix Figures 1 to 8In this specific application scenario of the conveying device 10 of this utility model, the height of the feed end 1101 of the conveying cylinder 11 is lower than the height of the discharge end 1102. Therefore, the conveying device 10 can transport the granular food from a lower position to a higher position. Furthermore, during the process of transporting the granular food to a higher position, the conveying blades 1221 and the conveying cylinder 11 can avoid crushing the granular food, thus ensuring the integrity of the granular food during transport and preventing noise and the crushing of the granular food into smaller particles or powder. Optionally, in other application scenarios of the conveying device 10 of this utility model, the height of the feed end 1101 and the height of the discharge end 1102 of the conveying cylinder 11 are aligned, allowing the conveying device 10 to transport the granular food from one position to another.

[0038] In the appendix Figures 1 to 8 In this specific example of the conveying device 10 of the present invention shown, the screw portion 122 may be made of silicone material, preferably food-grade silicone material, so that the conveying blades 1221 of the screw portion 122 are elastic.

[0039] In the appendix Figures 1 to 8 In this specific example of the conveying device 10 of the present invention shown, the screw portion 122 is integrally formed in the middle of the drive shaft 121. For example, silicone material can be integrally formed in the middle of the drive shaft 121 by means of a secondary overmolding process, so that the drive shaft 121 and the screw portion 122 are reliably combined into a whole.

[0040] Preferably, refer to the appendix Figure 8 The drive shaft 121 has at least one radial groove 1211 and at least one circumferential groove 1212 on its surface. When the screw portion 122 is integrally formed in the middle of the drive shaft 121, it forms portions protruding into the radial groove 1211 and the circumferential groove 1212 of the drive shaft 121. Therefore, when conveying the granular food using the conveying device 10, the conveying device 10 can not only prevent the screw portion 122 from moving relative to the drive shaft 121 in the circumferential direction, but also prevent the screw portion 122 from moving relative to the drive shaft 121 in the radial direction, thereby reliably combining the drive shaft 121 and the screw portion 122 into a single unit. More preferably, the surface of the drive shaft 121 has a plurality of mutually spaced radial grooves 1211 and a plurality of mutually spaced circumferential grooves 1212.

[0041] Optionally, in other specific examples of the conveying device 10 of this utility model, the screw portion 122 may be prefabricated, and the screw portion 122 may be fitted into the middle of the drive shaft 121, so that the screw portion 122 is disposed in the middle of the drive shaft 121.

[0042] Reference Appendix Figures 5 to 7 The screw section 122 has a resilient thrust vane 1222. The thrust vane 1222 and the conveying vane 1221 are respectively located on opposite sides of the discharge channel 113 of the conveying cylinder 11. For example, in the attached... Figures 1 to 8 In this specific example of the conveying device 10 of the present invention, since the height of the feed end 1101 of the conveying cylinder 11 is lower than the height of the discharge end 1102, the conveying blade 1221 is located below the discharge channel 113 of the conveying cylinder 11, and the reverse thrust blade 1222 is located above the discharge channel 113 of the conveying cylinder 11, with the spiral direction of the reverse thrust blade 1222 opposite to that of the conveying blade 1221. When the granular food is conveyed to the discharge channel 113 of the conveying cylinder 11 by the conveying blade 1221 of the conveying screw 12, the reverse thrust blade 1222 can push the granular food downwards to prevent it from continuing to move towards the discharge end 1102 of the conveying cylinder 11, thereby allowing the granular food to be smoothly discharged through the discharge channel 113 of the conveying cylinder 11, thus realizing the conveying of the granular food.

[0043] Continue to refer to the appendix Figures 1 to 8The conveying cylinder 11 further includes a cylinder body 114 and a cylinder cover 115. The cylinder body 114 has a cavity 1141 and an assembly opening 1142, the assembly opening 1142 communicating with the cavity 1141 at one end face of the cylinder body 114. The cylinder cover 115 is installed on the end face of the cylinder body 114 to close the assembly opening 1142 of the cylinder body 114, thereby forming the conveying cavity 111 of the conveying cylinder 11 between the cylinder body 114 and the cylinder cover 115, wherein the feed channel 112 of the conveying cylinder 11 is formed on the side of one end of the cylinder body 114, and the discharge channel 113 is formed on the side of the other end of the cylinder body 114. The conveying screw 12 is allowed to be mounted in the conveying cavity 111 of the conveying cylinder 11 through the mounting opening 1142 of the cylinder 114, and the opposite ends of the drive shaft 121 are respectively mounted to one end of the cylinder 114 and the cylinder cover 115 through a bearing 13. In this way, the drive shaft 121 can suspend the screw portion 122 in the conveying cavity 111 of the conveying cylinder 11 and allow the screw portion 122 to rotate in the conveying cavity 111 of the conveying cylinder 11 for conveying the granular food.

[0044] Preferably, a first groove 1143 is provided at one end of the cylinder 114, the depth dimension of the first groove 1143 of the cylinder 114 is the same as the thickness dimension of the bearing 13, and the bearing 13, which is provided at one end of the drive shaft 121, is embedded in the first groove 1143 of the cylinder 114, so that this end of the drive shaft 121 is rotatably mounted to the cylinder 114 through the bearing 13.

[0045] Accordingly, the cylinder cover 115 is provided in a second groove 1151, the depth dimension of the second groove 1151 of the cylinder cover 115 is the same as the thickness dimension of the bearing 13, and the bearing 13, which is provided at one end of the drive shaft 121, is embedded in the second groove 1151 of the cylinder cover 115, so that this end of the drive shaft 121 is rotatably mounted to the cylinder cover 115 through the bearing 13.

[0046] Preferably, the conveying cylinder 11 includes a retaining ring 110, the inner side of which holds the drive shaft 121, and the outer side of which abuts against the bearing 13.

[0047] The conveying device 10 further includes a conveying driver 14, and the cylinder cover 115 further has a cylinder cover through hole 1152, which communicates with the conveying cavity 111 of the conveying cylinder 11. One end of the drive shaft 121 extends through the cylinder cover through hole 1152 of the cylinder cover 115 to and is mounted on the output shaft of the conveying driver 14. When the output shaft of the conveying driver 14 outputs power due to rotation, the output shaft of the conveying driver 14 drives the drive shaft 121 to rotate in the conveying cavity 111 of the conveying cylinder 11, thereby driving the screw portion 122 to rotate in the conveying cavity 111 of the conveying cylinder 11.

[0048] It is worth mentioning that the mounting method of the end of the drive shaft 121 and the output shaft of the conveying driver 14 is not limited in the conveying device 10 of this utility model, as long as the end of the drive shaft 121 is drivably mounted to the output shaft of the conveying driver 14. For example, in the attached... Figures 1 to 8 In this specific example of the conveying device 10 of the present invention shown, the end of the drive shaft 121 has a non-circular mounting groove 1213, the end of the output shaft of the conveying driver 14 is non-circular, and the shape and size of the end of the output shaft of the conveying driver 14 matches the shape and size of the mounting groove 1213 of the drive shaft 121. The end of the output shaft of the conveying driver 14 extends into the mounting groove 1213 of the drive shaft 121, so that the end of the drive shaft 121 is drivably mounted on the output shaft of the conveying driver 14.

[0049] The conveying cylinder 11 further includes a sealing cover 116 and a sealing ring 117. The sealing cover 116 has a cover body through hole 1161. The sealing cover 116 is stacked on the cylinder cover 115 such that the conveying cylinder 11 forms an embedding groove 118 between the sealing cover 116 and the cylinder cover 115, and the drive shaft 121 extends into the cover body through hole 1161. The sealing ring 117 is fitted onto the drive shaft 121, and the sealing ring 117 is located in the embedding groove 118 of the conveying cylinder 11. Thus, the sealing ring 117 can prevent air leakage at the assembly position of the drive shaft 121, the cylinder cover 115, and the sealing cover 116. The conveying driver 14 is fixedly mounted on the sealing cover 116.

[0050] In the appendix Figures 1 to 8In this specific example of the conveying device 10 of the present invention, a set of screws can be used to install the sealing cap 116 and the cylindrical cover 115 to the end of the cylindrical body 114. Specifically, after the cylindrical cover 115 is stacked on the end of the cylindrical body 114 and the sealing cap 116 is stacked on the cylindrical cover 115, the screw through holes of the sealing cap 116, the screw through holes of the cylindrical cover 115, and the threaded blind hole of the cylindrical body 114 correspond to each other. The threaded end of the screw extends to the threaded blind hole of the cylindrical body 114 after passing through the screw through holes of the sealing cap 116 and the cylindrical cover 115, and the threaded end of the screw and the cylindrical body 114 are screwed together so that the sealing cap 116 and the cylindrical cover 115 are installed to the end of the cylindrical body 114 by the screws.

[0051] It is understood that the conveyor driver 14 can also be fixedly mounted on the sealing cover 116 by a set of screws, so that the relative position of the conveyor driver 14 and the drive shaft 121 remains unchanged, thereby one end of the drive shaft 121 can be reliably connected to the output shaft of the conveyor driver 14.

[0052] Continue to refer to the appendix Figures 1 to 8 The conveying device 10 further includes a door actuator 15 and a door unit 16. The door actuator 15 is mounted on the cylinder 114 of the conveying cylinder 11, and the door unit 16 is drivably connected to the output shaft of the door actuator 15. The door actuator 15 can drive the door unit 16 to open and close the discharge channel 113 of the conveying cylinder 11. When the door actuator 15 drives the door unit 16 to open the discharge channel 113 of the conveying cylinder 11, the granular food is allowed to be discharged from the conveying device 10 through the discharge channel 113 of the conveying cylinder 11. When the door actuator 15 drives the door unit 16 to close the discharge channel 113 of the conveying cylinder 11, the granular food is prevented from being discharged from the conveying device 10 through the discharge channel 113 of the conveying cylinder 11.

[0053] Preferably, when the door unit 16 closes the discharge channel 113 of the conveying cylinder 11, the door unit 16 can prevent air leakage at the discharge channel 113 of the conveying cylinder 11. Specifically, the door unit 16 includes a resilient door frame element 161 and a door assembly 162, wherein the door frame element 161 has a door frame opening 1611, the door frame element 161 is mounted on the conveying cylinder 11, and the door frame opening 1611 of the door frame element 161 communicates with the discharge channel 113 of the conveying cylinder 11, wherein the door assembly 162 includes a door body 1621, a floating door 1622, and at least one elastic element 1623, the elastic element 1623 is disposed between the door body 1621 and the floating door 1622 so that the floating door 1622 is floating relative to the door body 1621, and the door body 1621 is drivably mounted on the output shaft of the door driver 15.

[0054] Reference Appendix Figure 6 and Figure 7 When the door actuator 15 drives the door assembly 162 to rotate downward, the floating door 1622 moves away from the door frame element 161, so that the door unit 16 opens the discharge channel 113 of the conveying cylinder 11, allowing the granular food to be discharged from the conveying device 10 through the discharge channel 113 of the conveying cylinder 11. When the door actuator 15 drives the door assembly 162 to rotate upward, the floating door 1622 adheres to the door frame element 161, so that the door unit 16 closes the discharge channel 113 of the conveying cylinder 11, preventing the granular food from being discharged from the conveying device 10 through the discharge channel 113 of the conveying cylinder 11.

[0055] In the conveying device 10 of this utility model, by setting the door frame element 161 to be elastic and the door assembly 162 providing the floating door 1622, after the door driver 15 drives the door assembly 162 to rotate upward, the floating door 1622 can reliably fit against the door frame element 161 to avoid gaps between the floating door 1622 and the door frame element 161, thereby the door unit 16 can prevent air leakage at the discharge channel 113 of the conveying cylinder 11.

[0056] In the appendix Figures 1 to 8 In a specific example of the conveying device 10 of the present invention shown, the door frame element 161 may be made of silicone material, preferably, the door frame element 161 may be made of food-grade silicone material so that the door frame element 161 is elastic.

[0057] To facilitate the installation of the door frame element 161 onto the cylinder 114, the cylinder 114 has a first mounting tube 1144. The first mounting tube 1144 extends integrally downward from the edge of the discharge channel 113 of the conveying cylinder 11. The door frame element 161 is fitted onto the first mounting tube 1144 to install the door frame element 161 onto the cylinder 114, and the door frame opening 1611 of the door frame element 161 communicates with the discharge channel 113 of the conveying cylinder 11. Preferably, the door frame element 161 and the first mounting tube 1144 of the cylinder 114 hook together to reliably install the door frame element 161 onto the cylinder 114 and prevent the door frame element 161 from falling off the cylinder 114.

[0058] Reference Appendix Figure 2 and Figure 3 The door body 1621 has at least one hook arm through hole 16211, which passes through opposite sides of the door body 1621. The floating door 1622 has at least one hook arm 16221. Each hook arm 16221 of the floating door 1622 passes through each hook arm through hole 16211 of the door body 1621, and the end of each hook arm 16221 of the floating door 1622 can hook onto the edge of each hook arm through hole 16211 of the door body 1621. In this way, the conveying device 10 not only makes the floating door 1622 float, but also prevents the floating door 1622 from separating from the door body 1621.

[0059] Continue to refer to the appendix Figure 2 and Figure 3 The door body 1621 has at least one guide hole 16212 that extends through opposite sides of the door body 1621. The floating door 1622 has at least one guide arm 16222. The elastic element 1623 is a compression spring that is fitted onto the guide arm 16222 of the floating door 1622. The ends of the guide arms 16222 of the floating door 1622 extend into the respective guide holes 16212 of the door body 1621. In this way, on the one hand, the elastic element 1623 can be reliably held between the door body 1621 and the floating door 1622. On the other hand, the guide hole 16212 of the door body 1621 and the guide arm 16222 of the floating door 1622 cooperate with each other to limit the floating direction of the floating door 1622.

[0060] In the appendix Figures 1 to 8In this specific example of the conveying device 10 of the present invention shown, the number of hook arm through holes 16211 and guide through holes 16212 of the door body 1621 are both four, and correspondingly, the number of hook arms 16221 and guide arms 16222 of the floating door 1622 are both four.

[0061] Continue to refer to the appendix Figure 2 and Figure 3 The cylindrical body 114 has a second mounting tube 1145, which is adjacent to the first mounting tube 1144. The second mounting tube 1145 has a pair of tube body post holes 11451. The door body 1621 has a pair of extension arms 16213 and a clearance groove 16214 formed between the pair of extension arms 16213. Each of the extension arms 16213 of the door body 1621 has a first arm body post hole 162131 and a second arm body post hole 162132 communicating with the first arm body post hole 162131. The second mounting tube 1145 of the cylindrical body 114 extends into the clearance groove 16214 of the door body 1621. The first arm body post holes 162131 of each of the extension arms 16213 of the door body 1621 correspond to the respective tube body post holes 11451 of the second mounting tube 1145 of the cylindrical body 114. The output shaft of the door actuator 15 has a pair of shaft through holes 151. After the output shaft of the door actuator 15 passes through the first arm post hole 162131 of each of the extension arms 16213 of the door body 1621 and the tube post hole 11451 of the second mounting tube 1145 of the cylinder 114, the second arm post hole 162132 of each of the extension arms 16213 of the door body 1621 and the shaft through hole 151 of the door actuator 15 correspond to each other. The conveying device 10 includes a pair of pins 17, which are inserted into the second arm post hole 162132 of each of the extension arms 16213 of the door body 1621 and the shaft through hole 151 of the door actuator 15, so that the door body 1621 is drivably connected to the output shaft of the door actuator 15.

[0062] Reference Appendix Figure 9 and Figure 10This utility model further provides a food storage device, wherein the food storage device includes the conveying device 10 and a chamber 20, the chamber 20 having a cavity 21 and a bottom opening 22 communicating with the cavity 21, the conveying cylinder 11 being installed in the chamber 20, and the feeding channel 112 of the conveying cylinder 11 communicating with the bottom opening 22 of the chamber 20. The granular food can be stored in the cavity 21 of the chamber 20. The granular food stored in the cavity 21 of the chamber 20 can enter the conveying cavity 111 through the bottom opening 22 of the chamber 20 and the feeding channel 112 of the conveying cylinder 11.

[0063] Preferably, the cylinder 114 has a third mounting tube 1146 that extends integrally upward from the edge of the discharge channel 113 of the conveying cylinder 11. The third mounting tube 1146 is installed at the bottom of the chamber 20. For example, a screw can be used to install the third mounting tube 1146 at the bottom of the chamber 20 so that the feed channel 112 of the conveying cylinder 11 and the bottom opening 22 of the chamber 20 are connected.

[0064] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A conveying device for granular foodstuffs for conveying granular foodstuffs, characterized in that include: A conveying cylinder, wherein the conveying cylinder has a conveying chamber, a feeding channel and a discharging channel, the feeding channel being connected to the conveying chamber on the upper side of one end of the conveying cylinder, and the discharging channel being connected to the conveying chamber on the lower side of the other end of the conveying cylinder; and A conveying screw, wherein the conveying screw includes a drive shaft and a screw section, the opposite ends of the drive shaft are rotatably mounted to the opposite ends of the conveying cylinder, the screw section is disposed in the middle of the drive shaft, and the screw section has an elastic conveying blade, the conveying blade extending spirally from the feed channel of the conveying cylinder to the discharge channel within the conveying cavity of the conveying cylinder, when the granular food enters the conveying cavity through the feed channel of the conveying cylinder, the granular food is conveyed by the conveying blade to the discharge channel of the conveying cylinder as the conveying screw rotates, and is discharged through the discharge channel of the conveying cylinder.

2. The conveying device for granular food according to claim 1, wherein the screw portion has an elastic reverse thrust blade, the reverse thrust blade and the conveying blade are respectively located on opposite sides of the discharge channel of the conveying cylinder, and the spiral direction of the reverse thrust blade is opposite to the spiral direction of the conveying blade.

3. The conveying device for granular food according to claim 1, wherein the screw portion is integrally formed in the middle of the drive shaft.

4. The conveying device for granular food according to claim 1, wherein the screw portion is made of silicone material so that the conveying blades of the screw portion are elastic.

5. The conveying device for granular food according to claim 3, wherein the surface of the drive shaft has at least one radial groove and at least one circumferential groove, and the screw portion, when integrally formed in the middle of the drive shaft, forms portions protruding into the radial groove and the circumferential groove of the drive shaft.

6. The conveying device for granular food according to any one of claims 1 to 5, wherein the conveying cylinder comprises a cylinder body and a cylinder cover, the cylinder body having a cylinder cavity and an assembly opening, the assembly opening communicating with the cylinder cavity at an end face of one end of the cylinder body, the cylinder cover being mounted on the end face of the cylinder body to close the assembly opening of the cylinder body to form the conveying cavity of the conveying cylinder between the cylinder body and the cylinder cover, the feed channel of the conveying cylinder being formed on the side of one end of the cylinder body, the discharge channel of the conveying cylinder being formed on the side of the other end of the cylinder body, the conveying screw being allowed to be mounted in the conveying cavity of the conveying cylinder through the assembly opening of the cylinder body, and the opposite ends of the drive shaft being mounted to one end of the cylinder body and the cylinder cover respectively by bearings.

7. The conveying device for granular food according to claim 6, wherein the conveying device includes a conveying driver, wherein the cylinder cover has a cylinder cover perforation communicating with the conveying cavity, and one end of the drive shaft extends through the cylinder cover perforation and is mounted to the output shaft of the conveying driver so as to be driven by the conveying driver to rotate the drive shaft within the conveying cavity of the conveying cylinder.

8. The conveying device for granular food according to claim 7, wherein the conveying cylinder further includes a sealing cap and a sealing ring, and the conveying cylinder has an insert groove, the sealing cap has a cap body through hole, the sealing cap is stacked on the cylinder cap such that the drive shaft extends into the cap body through hole, the insert groove of the conveying cylinder is formed between the sealing cap and the cylinder cap, the sealing ring is fitted onto the drive shaft and located in the insert groove of the conveying cylinder, wherein the conveying drive is fixedly mounted on the sealing cap.

9. The conveying device for granular food according to any one of claims 1 to 5, wherein the conveying device further comprises a door driver and a door unit, the door driver being mounted on the conveying cylinder and the door unit being drivably connected to the output shaft of the door driver so that the door unit can open and close the discharge channel of the conveying cylinder.

10. The conveying device for granular food according to claim 9, wherein the door unit comprises a resilient door frame element and a door assembly, the door frame element having a door frame opening, the door frame element being mounted on the conveying cylinder, and the door frame opening of the door frame element communicating with the discharge channel of the conveying cylinder, the door assembly comprising a door body, a floating door, and at least one resilient element disposed between the door body and the floating door, the door body being drivably mounted on the output shaft of the door driver, wherein when the door driver drives the door assembly to rotate downward, the floating door moves away from the door frame element to allow the door unit to open the discharge channel of the conveying cylinder, and when the door driver drives the door assembly to rotate upward, the floating door abuts against the door frame element to allow the door unit to close the discharge channel of the conveying cylinder.

11. A food storage container characterized by, include: A cabin, wherein the cabin has a cavity and a bottom opening communicating with the cavity; and The conveying device according to any one of claims 1 to 10, wherein the conveying cylinder is installed in the chamber, and the feed channel of the conveying cylinder is connected to the bottom opening of the chamber.

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