Negative pressure storage tank

Abstract

The utility model discloses a kind of negative pressure storage tank, it is related to sunflower seed storage technical field, including material box, provide closed storage space;Provide negative pressure extraction force air duct, the air intake end of air duct extends upwards, and air intake opening is arranged in the side wall of air intake end side, the top end of material box side wall is equipped with air outlet, and the opening of air outlet located in material box outside is connected with the butt joint pipe that can be seamlessly butt joint with air intake opening, the bottom wall of material box is equipped with feed inlet, and the opening of feed inlet located in feed tank is connected with guide pipe, the opening of air outlet located in material box is connected with arc filter screen, and arc filter screen is located in the upper end opening of guide pipe upper position;Feed inlet, guide pipe, air outlet and air duct form negative pressure extraction passage.The utility model stores sunflower seed using negative pressure extraction, ensure collection fast and effective, and maximum limit protect sunflower seed shell from mechanical external force and breakage;It can also be according to storage demand, one material box is used to store sunflower seed, another material box stores sunflower disc.

Description

Technical Field

[0001] This utility model relates to the technical field of sunflower seed storage, specifically a negative pressure storage box. Background Technology

[0002] Sunflower seeds are the fruit of the sunflower and are a popular snack and edible oil source. The most common way to eat them is to roast or roast them and then shell them directly. Sunflower seeds can be added to various pastries, such as bread, cookies, and cakes, to enhance their flavor and nutritional value. Oil-producing sunflower seeds can be processed into sunflower seed oil through pressing or solvent extraction. Sunflower seed oil is a healthy edible oil suitable for cooking various dishes, especially cold dishes, as it preserves the original flavor and nutrients of the food.

[0003] Currently, existing technologies use screw conveyors to transport sunflower seeds. During this process, the seeds are subjected to compression and friction between the screw and the barrel. Because sunflower seed shells are relatively fragile, they are prone to breakage under continuous mechanical action. Broken seeds not only affect the product's appearance but may also expose the kernels, increasing the risk of oxidation and spoilage, thus reducing shelf life and commercial value. Therefore, a negative pressure storage box has been designed and manufactured to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a negative pressure storage box to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a negative pressure storage box, including a material box, providing a sealed storage space; A duct provides negative pressure extraction force. The suction end of the duct extends upward and has a suction port on the side wall of the suction end. The top of the side wall of the material box has an exhaust port, and the exhaust port is connected to a connecting pipe that can seamlessly connect with the suction port. The bottom wall of the material box has a feed port, and the feed port is connected to a guide pipe at the opening inside the feed box. The exhaust port is connected to an arc-shaped filter screen at the opening inside the material box, and the arc-shaped filter screen is located above the upper opening of the guide pipe. The feed inlet, guide pipe, exhaust outlet, and air duct form a negative pressure extraction passage.

[0006] In a further embodiment, the top of the material box is provided with a discharge port on the side away from the rotation position of the support frame, and the discharge port opening is rotatably provided with a cover, and a soft rubber sheet is connected between the side wall of the cover and the side wall of the discharge port. A return spring is connected between the side wall of the cover and the side wall of the material box.

[0007] In a further embodiment, a sunflower-shaped inlet is provided at the top of the side wall of one of the material bins facing away from the exhaust vent, and a sealing plate for sealing the sunflower-shaped inlet is rotatably provided at the sunflower-shaped inlet. The top wall of the hopper is also provided with an enlarged notch located on the side of the cover, and a top cover is rotatably installed at the enlarged notch.

[0008] In a further embodiment, a support frame is also included, which is used to rotate and support the material box. The top of the outer wall of the material box is rotatably provided with a support roller that is fixedly connected to the support frame, and a hydraulic cylinder is provided between the support frame and the material box. The hydraulic cylinder provides extension and retraction power, which can rotate the material box around the support roller in both directions. The material bins are provided in two locations, and the air duct has two air intakes. The two material bins rotate around the support roller, so that the two exhaust ports can be respectively positioned and connected to the two air intakes.

[0009] In a further embodiment, a rotating pin is rotatably inserted into the air intake end of the air duct. One end of the rotating pin is located inside the air duct, and a partition plate is fixed to the radial side wall of the rotating pin. The partition plate can alternately block the two air intakes with the rotating pin as the rotation center.

[0010] In a further embodiment, the other end of the rotating pin extends out of the air duct and bends downward to form a deflecting end. The deflecting end has a columnar block facing the side wall of the air duct. The outer wall of the suction end of the sealing duct is provided with an L-shaped deflecting piece. The L-shaped deflecting piece has a longitudinal end and a transverse end. The end of the longitudinal end has a U-shaped notch. The columnar block is rotatably embedded in the U-shaped notch. The end of the transverse end is connected to a downwardly extending pulling rope. Pull down the pull rope, the L-shaped lever flips clockwise, the longitudinal end of the lever and the lever end flip counterclockwise, thereby causing the partition plate to flip inside the air duct and press against one of the air inlets, and the other air inlet connects to the corresponding air outlet.

[0011] In a further embodiment, the two long sidewalls of the arc-shaped filter are fixedly connected to the sidewalls and top wall of the material box, respectively, and the two short sidewalls of the arc-shaped filter are each fixed with a baffle, which is fixedly connected to the sidewalls and top wall of the material box.

[0012] In a further embodiment, a feeding frame is also included, the feeding frame having a storage slot, one end of the feeding frame having a shrinking structure, the shrinking structure also having a storage slot, the two storage slots being connected, and the shrinking structure being located directly below the inlet of the two material boxes; It also includes two feed pipes that can connect to the feed inlet, the bottom ends of which extend close to the bottom wall of the storage tank of the reduced structure; It also includes the screen plate located in the toothed groove of the feeding frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model is a negative pressure storage box. Through negative pressure extraction, the negative pressure suction system can generate strong suction, causing sunflower seeds to flow rapidly within the pipe, achieving efficient transportation. Compared with traditional mechanical conveying methods, such as screw conveyors, negative pressure suction can greatly shorten the transportation time and improve the efficiency of the entire harvesting process. More importantly, during the negative pressure suction process, the sunflower seeds are mainly transported by airflow within the pipe, with less contact with mechanical parts. This greatly reduces breakage and skin wear caused by mechanical squeezing and friction, helping to maintain the integrity and appearance quality of the sunflower seeds and improve the commercial value of the product.

[0014] 2. This utility model sets up two relatively independent material bins. One storage method is to use both material bins as storage locations for sunflower seeds, and the other storage method is to use one material bin as a storage location for sunflower seeds and the other material bin as a storage location for sunflower heads. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model; Figure 2 and Figure 3 These are all schematic diagrams of a material bin flipping in one embodiment of this utility model; Figure 4 This is a schematic diagram of the assembly structure of a material box and a feeding frame in one embodiment of the present utility model; Figure 5 This is a half-sectional view of one of the material bins in one embodiment of this utility model; Figure 6 This is a schematic diagram of the feeding frame structure according to an embodiment of the present utility model; Figure 7 This is a partial cross-sectional view of the air duct in an embodiment of the present utility model.

[0016] In the diagram: 1. Support frame; 2. Material bin one; 3. Material bin two; 31. Top cover; 32. Sealing plate; 4. Connecting pipe; 5. Air duct; 6. Negative pressure fan; 7. Feeding frame; 71. Feed pipe; 72. External air outlet; 73. Screen plate; 8. Sealing cover; 81. Soft rubber sheet; 9. Arc-shaped filter screen; 91. Baffle; 92. Guide pipe; 10. Divider plate; 101. Rotating pin; 102. Columnar block; 103. L-shaped actuating piece. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] This embodiment provides a negative pressure storage box, including a material bin, providing a sealed storage space. Specifically, as follows... Figure 1 and Figure 2 As shown, it also includes a support frame 1. The support frame 1 has an overall L-shaped structure. The top of the vertical structure of the L-shaped structure is used to rotate and support the material box. That is, a support roller fixedly connected to the support frame 1 is rotatably provided at the top of the outer wall of the material box. A hydraulic cylinder is provided between the support frame 1 and the material box. In this way, the hydraulic cylinder provides extension and retraction power, which can provide power for the material box to rotate forward and backward around the support roller.

[0019] At the same time, such as Figure 2 As shown, a discharge port is provided at the top of the material box on the side away from the rotation position of the support frame 1, and a cover 8 is rotatably provided at the opening of the discharge port. A soft rubber sheet 81 is connected between the side wall of the cover 8 and the side wall of the discharge port, and a return spring is connected between the side wall of the cover 8 and the side wall of the material box. When the material box is not rotated, the discharge port is tilted upwards, and the elasticity of the return spring pulls the cover 8 and closes it at the discharge port position, ensuring that the material box is temporarily sealed. When the material box rotates around the support roller, the discharge port is rotated to the tilted orientation. At this time, the sunflower seeds collected in the material box slide along the tilted inner wall of the material box to the cover 8. The weight of the sunflower seeds can make the cover 8 rotate around the rotation point and open, facilitating the discharge. During the discharge process, the soft rubber sheets 81 on both sides open and pull the cover 8, on the one hand preventing the cover 8 from rotating downwards, and on the other hand preventing the sunflower seeds from leaking out from the side. When the cover 81 is opened, the reset spring is stretched to generate elastic force. When the material box is flipped back to the initial state, the cover 81 can be flipped back to cover the discharge port with the help of the elastic force, and the material box is temporarily sealed again.

[0020] In addition, such as Figure 5 and Figure 7As shown, the air duct 5 provides negative pressure extraction force, and a negative pressure fan 6 is also installed on the side wall of the bottom bridge of the harvester to provide negative pressure extraction force within the air duct 5. The suction end of the air duct 5 extends upward, and a suction port is opened on the side wall of the suction end. There are two suction ports in the air duct 5, symmetrically distributed on the left and right. An exhaust port is provided at the top of the side wall of the feed box, and the opening of the exhaust port outside the feed box is connected to a connecting pipe 4 that can seamlessly connect with the suction port. A feed inlet is opened on the bottom wall of the feed box, and the opening of the feed inlet inside the feed box is connected to a guide pipe 92. The opening of the exhaust port inside the feed box is connected to an arc-shaped filter screen 9, which is located above the upper opening of the guide pipe 92.

[0021] It should be noted that the two long sidewalls of the arc-shaped filter 9 are fixedly connected to the sidewalls and top wall of the material box, respectively. Both short sidewalls of the arc-shaped filter 9 are fixed with baffles 91, which are also fixedly connected to the sidewalls and top wall of the material box. The purpose of the baffles 91 is to prevent the sunflower seeds drawn by the negative pressure airflow from entering the connecting pipe 4 through the sides of the arc-shaped filter 9 and ultimately entering the air duct 5, thus affecting the normal operation of the negative pressure fan 6. There are two material boxes: one is material box 2, and the other is material box 3.

[0022] It also includes a feeding frame 7, which is mounted on the bottom bridge of the harvester. The feeding frame 7 has rotating shafts mounted on both sides, and the harvester's transmission cams provide lateral reciprocating vibration power to the feeding frame 7. For example... Figure 4 and Figure 6 As shown, the feeding frame 7 has a storage tank, and one end of the feeding frame 7 is provided with a shrinking structure, which also has a storage tank. The two storage tanks are connected. It should be noted that the bottom wall of the storage tank of the feeding frame is gradually inclined downward towards the shrinking structure so as to facilitate the transfer of sunflower seeds into the storage tank of the shrinking structure during reciprocating sieving.

[0023] The shrinking structure is located directly below the feed inlets of the two feed hoppers. It also includes two feed pipes 71 that connect to the feed inlets. These feed pipes 71 are mounted on the bottom bridge of the harvester and are not directly connected to the shrinking structure or the feed hoppers. The bottom end of the feed pipe 71 extends close to the bottom wall of the storage tank within the shrinking structure. Therefore, when the two feed hoppers rotate around the support rollers and sit on the bottom bridge of the harvester, the two exhaust ports are positioned and connected to the two intake ports respectively. Simultaneously, the feed inlets of the feed hoppers seamlessly connect to the upper opening of the feed pipe 71. Thus, the feed inlets, guide pipe 92, exhaust ports, and air duct 5 form a negative pressure extraction path.

[0024] Start the negative pressure fan 6. Through the air duct 5, the connecting pipe 4, the guide pipe 92 in the temporarily sealed material box, and the feed pipe 71, the negative pressure suction force provided by the negative pressure fan 6 is transmitted to the storage tank of the reduced structure. This can suck the sunflower seeds located at the bottom opening of the feed pipe 71 into the feed pipe 71, and then into the guide pipe 92. When the sunflower seeds are blown out from the upper opening of the guide pipe 92, they will touch the arc-shaped filter screen 9, and then fall from the side of the arc-shaped filter screen 9 under their own weight to the bottom wall of the material box and pile up together. Thus, the collection of sunflower seeds in the material box is completed.

[0025] It also includes a sieve plate 73 located in the toothed groove of the feeding frame 7. The function of the sieve plate 73 is to move laterally back and forth with the feeding frame 7, so as to effectively separate the sunflower heads from the sunflower seeds. The sunflower seeds fall from the gaps in the sieve plate 73 into the storage tank of the feeding frame 7. Figure 6 As shown, an external air inlet 72 is provided on the side wall of the feeding frame 7 to connect with the air outlet of the negative pressure fan, which can blow air into the feeding frame 7 to blow out the dust particles mixed in with the sunflower seeds in the storage tank.

[0026] To ensure sufficient adsorption capacity, the two collection bins are used for independent storage. Specifically, such as... Figure 7 As shown, a rotating pin 101 is rotatably inserted into the air intake end of the air duct 5. One end of the rotating pin 101 is located inside the air duct 5, and a partition plate 10 is fixed to the radial side wall of the rotating pin 101. The partition plate 10 can alternately block the two air intakes with the rotating pin 101 as the rotation center. Specifically, as shown... Figure 7 As shown, the other end of the rotating pin 101 rotates and extends out of the air duct 5 and bends downward to form a deflecting end. A columnar block 102 is provided on the side wall of the deflecting end facing the air duct 5. An L-shaped deflecting piece 103 is rotatably provided on the outer wall of the suction end of the sealed passage. The L-shaped deflecting piece 103 has a longitudinal end and a transverse end. The end of the longitudinal end is provided with a U-shaped notch. The columnar block 102 rotates and is embedded in the U-shaped notch. The end of the transverse end is connected to a pull rope that extends downward.

[0027] Pull down the pull rope and lock its position to ensure that the L-shaped actuating plate 103 does not rotate back to its original position. The pull rope can pull the L-shaped actuating plate 103 to rotate clockwise, and the longitudinal end of the actuating plate 102 and the actuating end to rotate counterclockwise, thereby causing the partition plate 10 to rotate within the air duct 5 and press against one of the air intake openings. The other air intake is connected to the corresponding exhaust port. In this way, only one of the two material boxes can be connected to the air duct 5. At this time, the negative pressure suction force provided within the air duct 5 can be fully applied to the single material box, ensuring that the air volume meets the requirements for negative pressure extraction of sunflower seeds.

[0028] The two bins shown above are used for collecting and storing sunflower seeds.

[0029] In addition, hopper 1 (2) can be used to store sunflower seeds, and hopper 2 (3) can be used to temporarily store sunflower heads.

[0030] Specifically, such as Figure 7 As shown, one of the material bins has a sunflower-shaped inlet at the top of its side wall opposite the exhaust vent. This material bin refers to... Figure 1 and Figure 2 The second hopper 3 has a rotating sealing plate 32 at the sunflower head inlet for sealing the sunflower heads. The sealing plate 32 is locked closed at the sunflower head inlet by a bolt, so that the hopper can store sunflower seeds. Opening the bolt opens the sealing plate 32, and the sunflower head inlet is open, so that it can be connected to an external climbing machine to send the recovered sunflower heads into the second hopper 3 through the sunflower head inlet.

[0031] The top wall of the material box is also provided with an enlarged notch located on the side of the cover 8, and an upper cover 31 is rotatably installed at the enlarged notch. By adding the upper cover 31, the discharge area of ​​the discharge port is enlarged, and when the material box 2 3 is tilted to discharge, it is convenient to quickly pour the sunflower head out from the discharge port and the enlarged notch.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A negative pressure storage box, characterized in that, include: The hopper provides a sealed storage space; A duct (5) provides negative pressure extraction force. The suction end of the duct (5) extends upward and a suction port is opened on the side wall of the suction end. An exhaust port is provided at the top of the side wall of the material box. The exhaust port is connected to a connecting pipe (4) that can be seamlessly connected to the suction port at the opening outside the material box. A feed port is provided on the bottom wall of the material box. The feed port is connected to a guide pipe (92) at the opening inside the feed box. An arc-shaped filter (9) is connected to the opening inside the exhaust port. The arc-shaped filter (9) is located above the upper opening of the guide pipe (92). The feed inlet, guide pipe (92), exhaust port and air duct (5) form a negative pressure extraction passage.

2. The negative pressure storage box according to claim 1, characterized in that, The top of the material box is provided with a discharge port on the side away from the rotation position of the support frame (1), and the discharge port is provided with a cover (8) that rotates. A soft rubber sheet (81) is connected between the side wall of the cover (8) and the side wall of the discharge port. A reset spring is connected between the side wall of the cover (8) and the side wall of the material box.

3. The negative pressure storage box according to claim 2, characterized in that, One of the material bins has a sunflower-shaped inlet at the top of the side wall facing away from the exhaust vent, and a sealing plate (32) for sealing the sunflower-shaped inlet is rotatably provided at the sunflower-shaped inlet. The top wall of the hopper is also provided with an enlarged notch located on the side of the cover (8), and an upper cover (31) is rotatably provided at the enlarged notch.

4. The negative pressure storage box according to claim 1, characterized in that, It also includes a support frame (1), which is used to rotate and support the material box. The top of the outer wall of the material box is provided with a support roller that is fixedly connected to the support frame (1). A hydraulic cylinder is provided between the support frame (1) and the material box. The hydraulic cylinder provides extension and retraction power and can rotate the material box around the support roller in both directions. The material box is provided in two parts, and the air duct (5) is provided in two parts. The two material boxes rotate around the support roller, so that the two exhaust ports can be respectively placed and connected to the two air intake ports.

5. The negative pressure storage box according to claim 4, characterized in that, A rotating pin (101) is rotatably inserted into the air intake end of the air duct (5). One end of the rotating pin (101) is located inside the air duct (5), and a partition plate (10) is fixed to the radial side wall of the rotating pin (101). The partition plate (10) can alternately block the two air intakes with the rotating pin (101) as the rotation center.

6. The negative pressure storage box according to claim 5, characterized in that, The other end of the rotating pin (101) rotates and extends out of the air duct (5) and bends downward to form a deflecting end. The deflecting end is provided with a columnar block (102) facing the side wall of the air duct (5). The outer wall of the air intake end of the air duct (5) is provided with an L-shaped deflecting piece (103). The L-shaped deflecting piece (103) has a longitudinal end and a transverse end. The end of the longitudinal end is provided with a U-shaped notch. The columnar block (102) rotates and is embedded in the U-shaped notch. The end of the transverse end is connected to a downwardly extending pulling rope. Pull down the pull rope, the L-shaped lever (103) rotates clockwise, the longitudinal end of the lever (102) rotates counterclockwise, and the partition plate (10) rotates in the air duct (5) and presses against one of the air inlets, and the other air inlet is connected to the corresponding exhaust port.

7. The negative pressure storage box according to claim 1, characterized in that, The two long side walls of the arc-shaped filter (9) are fixedly connected to the side wall and top wall of the material box, respectively. The two short side walls of the arc-shaped filter (9) are fixed with baffles (91), which are fixedly connected to the side wall and top wall of the material box.

8. The negative pressure storage box according to claim 1, characterized in that, It also includes a feeding frame (7), which has a storage slot. One end of the feeding frame (7) is provided with a shrinking structure, which also has a storage slot. The two storage slots are connected to each other, and the shrinking structure is located directly below the inlet of the two material boxes. It also includes two feed pipes (71) that can connect to the feed inlet, the bottom ends of which extend close to the bottom wall of the storage tank of the reduced structure; It also includes a screen plate (73) located in the toothed groove of the feeding frame (7).

Images