Filter device with adjustable screen aperture

Abstract

This utility model discloses a filter device with adjustable screen aperture, relating to the technical field of filter devices. It includes a bottom cylinder, a top cylinder on its top surface, and a lifting mechanism on the outer side of the bottom cylinder. The lifting mechanism drives the top cylinder to slide up and down. A fixing ring is fixedly installed inside the bottom cylinder, and a filter screen is placed on the top surface of the fixing ring. In use, the lifting mechanism can separate the top cylinder from the bottom cylinder, and then a limiting mechanism can release the filter screen, facilitating easy replacement of the filter screen and adjustment of the filter aperture. Furthermore, the pressure plate can rotate when pressed downwards, and a spring telescopic rod allows a scraper to scrape away statically accumulated bean skins and hard cores on the top surface of the filter screen, preventing static accumulation and clogging of the filter screen, thus affecting filtration efficiency.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, and in particular to a filtration device with adjustable screen aperture. Background Technology

[0002] Filtering the cooked red bean paste is a crucial step in the traditional red bean paste making process. It is mainly used to separate the red bean paste from coarse particles such as bean skins and hard cores, resulting in a smooth and delicate texture. The background technology of this process can be traced back to the making of traditional East Asian pastries, especially the red bean paste fillings widely used in Chinese, Japanese, and Korean desserts.

[0003] In the process of filtering bean paste, the pressing plate technique is a common mechanized filtering method. It uses mechanical pressure to press cooked beans through a sieve, forcing the bean paste through the sieve while trapping bean skins and hard cores on the sieve surface. The pressing plate is usually made of metal or food-grade plastic with a smooth surface to ensure uniform pressure.

[0004] However, with simple pressing, the bean skins and hard cores will statically accumulate on the surface of the screen and be flattened by the pressing, causing the screen to become clogged. Furthermore, the existing screen is located inside the device, making it inconvenient to replace the screen and adjust the filter aperture. Therefore, this application proposes a filter device with an adjustable screen aperture. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a filter device with adjustable screen aperture.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A filter device with adjustable screen aperture includes a bottom cylinder, a top cylinder on the top surface of the bottom cylinder, a lifting mechanism on the outer side of the bottom cylinder that drives the top cylinder to slide up and down, a fixing ring fixedly installed inside the bottom cylinder, a filter screen placed on the top surface of the fixing ring, a limiting mechanism on the outer side of the bottom cylinder that limits the position of the filter screen, a support base fixedly installed on the outer side of the top cylinder, a fixing plate fixedly installed on the bottom surface of the support base via an electric push rod, an assembly plate fixedly installed on the bottom surface of the fixing plate, a pressure plate rotatably connected to the lower end of the assembly plate, a driving mechanism on the top surface of the assembly plate that drives the pressure plate to rotate, a fixing frame on the top surface of the pressure plate, and multiple spring telescopic rods symmetrically installed on the bottom surface of the fixing frame. Each of the multiple corresponding spring telescopic rods has a scraper installed at its bottom end, and each scraper penetrates the pressure plate and extends downwards.

[0008] Preferably, the limiting mechanism includes a U-shaped plate, which is fixedly installed on the outside of the bottom cylinder. A U-shaped rod is slidably connected to the outside of the U-shaped plate. Two insertion holes are opened on the outside of the filter screen. Both ends of the U-shaped rod penetrate the bottom cylinder and are locked in the corresponding insertion holes. Multiple limiting springs are installed on the outside of the U-shaped rod and the outside of the U-shaped plate.

[0009] Preferably, the lifting mechanism includes a fixed ring, which is fixedly installed on the outside of the bottom cylinder. A threaded rod is rotatably connected to the top surface of the fixed ring. A support rod is fixedly installed on the top cylinder. A threaded sleeve is fixedly installed at the bottom end of the support rod, and the threaded sleeve is threadedly connected to the threaded rod. A first motor is fixedly installed on the bottom surface of the fixed ring, and the output shaft of the first motor is connected to the threaded rod.

[0010] Preferably, the driving mechanism includes a second motor, which is fixedly mounted on the top surface of the assembly plate. The bottom end of the assembly plate is rotatably connected to a rotating shaft, and the bottom end of the rotating shaft is fixedly connected to the top surface of the pressure plate. A fixing frame is fixedly connected to the rotating shaft. A driven gear is mounted on the outer side of the rotating shaft. The output shaft of the second motor passes through the assembly plate and is equipped with a driving gear, which meshes with the rotating shaft.

[0011] Preferably, multiple support rods are fixedly installed on the outer side of the top cylinder, multiple guide posts are fixedly installed on the top surface of the fixing ring, a sliding sleeve is fixedly installed at the bottom end of each support rod, and each sliding sleeve is slidably connected to the guide post at the corresponding position.

[0012] Preferably, a drawer box is slidably connected inside the bottom cylinder, and both the first motor and the second motor are conical rotor motors.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model uses a lifting mechanism, a limiting mechanism, and other devices to achieve the separation of the top cylinder and the bottom cylinder by the lifting mechanism, and then releases the limit of the filter screen by the limiting mechanism, so that users can easily replace the filter screen and adjust the filter aperture.

[0015] 2. This utility model, through a drive mechanism, electric push rod, fixed frame, scraper, pressure plate and other devices, realizes that the electric push rod drives the pressure plate to squeeze downward, and the drive mechanism drives the pressure plate to rotate. When the pressure plate rotates, the spring telescopic rod causes the scraper to scrape off the bean skin and hard core that are statically accumulated on the top surface of the filter screen, so as to avoid static accumulation and blockage of the filter screen and affect the filtration efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the filter device with adjustable screen aperture proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the lifting mechanism of the filter device with adjustable screen aperture proposed in this utility model.

[0018] Figure 3 This is a schematic cross-sectional view of the top cylinder of the filter device with adjustable screen aperture proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the drive mechanism of the filter device with adjustable screen aperture proposed in this utility model.

[0020] In the diagram: 1. Bottom cylinder; 2. Top cylinder; 3. Drawer box; 4. Fixed base; 5. Connecting rod; 6. First motor; 7. Threaded rod; 8. Threaded sleeve; 9. Filter screen; 10. Insertion hole; 11. U-shaped plate; 12. U-shaped rod; 13. Limiting spring; 14. Support base; 15. Electric push rod; 16. Fixed plate; 17. Assembly plate; 18. Pressure plate; 19. Rotating shaft; 20. Second motor; 21. Drive gear; 22. Driven gear; 23. Fixed frame; 24. Spring telescopic rod; 25. Scraper. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] This utility model provides a technical solution: such as Figure 1-4 As shown, the filter device with adjustable screen aperture includes a bottom cylinder 1, a top cylinder 2 on the top surface of the bottom cylinder 1, and a sealing strip between the bottom surface of the top cylinder 2 and the top surface of the bottom cylinder 1 to ensure sealing. A lifting mechanism is provided on the outside of the bottom cylinder 1, and the lifting mechanism drives the top cylinder 2 to slide up and down. A fixing ring is fixedly installed inside the bottom cylinder 1, and a filter screen 9 is placed on the top surface of the fixing ring. A limiting mechanism is provided on the outside of the bottom cylinder 1, and the limiting mechanism restricts the position of the filter screen 9. The lifting mechanism causes the top cylinder 2 to separate from the bottom cylinder 1, thereby facilitating the operator to release the limiting of the filter screen 9, conveniently replace the filter screen 9, and realize the adjustment of the filter aperture.

[0023] A support base 14 is fixedly installed on the outer side of the top cylinder 2. A fixed plate 16 is fixedly installed on the bottom surface of the support base 14 via an electric push rod 15. An assembly plate 17 is fixedly installed on the bottom surface of the fixed plate 16. A pressure plate 18 is rotatably connected to the lower end face of the assembly plate 17. A drive mechanism is provided on the top surface of the assembly plate 17, and the drive mechanism drives the pressure plate 18 to rotate. A fixed frame 23 is provided on the top surface of the pressure plate 18. Multiple spring telescopic rods 24 are symmetrically installed on the bottom surface of the fixed frame 23. The springs at multiple corresponding positions extend... Each of the retractable rods 24 has a scraper 25 installed at its bottom end. Each scraper 25 passes through the pressure plate 18 and extends downward. The pressure plate 18 is rotated by the drive mechanism, thereby causing the scraper 25 to stir the bean paste on the top surface of the filter screen 9. The spring telescopic rod 24 can make the scraper 25 abut against the top surface of the filter screen 9, which facilitates the stirring of the bean paste and prevents the bean skin and hard core from accumulating statically on the filter screen 9. This ensures that the bean paste passes smoothly through the filter screen 9 and improves the filtration efficiency.

[0024] Furthermore, the limiting mechanism includes a U-shaped plate 11, which is fixedly installed on the outside of the bottom cylinder 1. A U-shaped rod 12 is slidably connected to the outside of the U-shaped plate 11. Two insertion holes 10 are opened on the outside of the filter screen 9, and both ends of the U-shaped rod 12 penetrate the bottom cylinder 1 and are locked in the corresponding insertion holes 10. Multiple limiting springs 13 are installed on the outside of the U-shaped rod 12 and the outside of the U-shaped plate 11. The user can quickly release the limiting of the filter screen 9 by pulling the U-shaped rod 12 outward, and the limiting springs 13 can make the U-shaped rod 12 firmly locked in the insertion holes 10, thereby effectively limiting the filter screen 9.

[0025] Furthermore, the lifting mechanism includes a fixed seat 4, which is fixedly installed on the outside of the bottom cylinder 1. A threaded rod 7 is rotatably connected to the top surface of the fixed seat 4. A connecting rod 5 is fixedly installed on the top cylinder 2. A threaded sleeve 8 is fixedly installed at the bottom end of the connecting rod 5, and the threaded sleeve 8 is threadedly connected to the threaded rod 7. A first motor 6 is fixedly installed on the bottom surface of the fixed seat 4, and the output shaft of the first motor 6 is connected to the threaded rod 7. By rotating the threaded rod 7, the threaded sleeve 8 can be driven to slide along the axial direction of the threaded rod 7.

[0026] Furthermore, the drive mechanism includes a second motor 20, which is fixedly mounted on the top surface of the assembly plate 17. A rotating shaft 19 is rotatably connected to the bottom end of the assembly plate 17, and the bottom end of the rotating shaft 19 is fixedly connected to the top surface of the pressure plate 18. A fixing bracket 23 is fixedly connected to the rotating shaft 19. A driven gear 22 is mounted on the outer side of the rotating shaft 19. The output shaft of the second motor 20 passes through the assembly plate 17 and is equipped with a drive gear 21. The drive gear 21 meshes with the rotating shaft 19, and the pitch circle diameter of the drive gear 21 is smaller than the pitch circle diameter of the driven gear 22, which allows the pressure plate 18 to rotate slowly.

[0027] Furthermore, multiple support rods are fixedly installed on the outer side of the top cylinder 2, and multiple guide posts are fixedly installed on the top surface of the fixed base 4. A sliding sleeve is fixedly installed at the bottom end of each support rod, and each sliding sleeve is slidably connected to the guide post at the corresponding position. This can limit the top cylinder 2, preventing it from rotating and allowing it to slide up and down.

[0028] Furthermore, a drawer box 3 is slidably connected inside the bottom cylinder 1. Both the first motor 6 and the second motor 20 are conical rotor motors, which can automatically lock the output shaft after power failure, making it convenient to effectively limit the threaded rod 7.

[0029] This utility model provides a filter device with adjustable screen aperture. The specific working principle is as follows: The operator can first start the first motor 6 to drive the threaded rod 7 to rotate. Through the cooperation of the threaded sleeve 8 and the limiting of multiple guide posts and sliding sleeves, the top cylinder 2 can slide upward, separating the bottom cylinder 1 from the top cylinder 2. Then, the user can pull the U-shaped rod 12 outward to compress the limiting spring 13, so that the two ends of the U-shaped rod 12 are disengaged from the insertion hole 10, thereby releasing the limitation on the filter screen 9. The user can replace the filter screen 9 to conveniently change the filter aperture of the bean paste. After the replacement is completed, the U-shaped rod 12 can be released, and under the action of the limiting spring 13, the two ends of the U-shaped rod 12 are locked in the insertion hole 10, thereby completing the effective limitation on the filter screen 9.

[0030] Next, the user places the cooked bean paste on the top surface of the filter screen 9, and drives the top cylinder 2 to descend and reset by rotating the threaded rod 7 in the opposite direction. Then, by activating the electric push rod 15, the fixed plate 16 and other components are adjusted to make the pressure plate 18 press the bean paste downward. Through the setting of the fixed frame 23 and the spring telescopic rod 24, the scraper 25 can be inserted into the bean paste. At the same time, the second motor 20 can be activated to drive the drive gear 21 to rotate, thereby driving the rotating shaft 19 to rotate through the meshing of the driven gear 22 and the drive gear 21, so that the pressure plate 18 rotates while pressing downward. The scraper 25 can stir the bean paste, and when the scraper 25 abuts against the top surface of the filter screen 9, it can scrape off the bean skins and hard cores that are statically accumulated on the top surface of the filter screen 9, so as to avoid static accumulation and blockage of the filter screen 9 and affect the filtration efficiency. In addition, the multiple spring telescopic rods 24 can completely hide the scraper 25 inside the pressure plate 18 when the pressure plate 18 abuts against the filter screen 9, so as not to affect the squeezing of the bean paste. The filtered bean paste falls into the drawer box 3, and the user can slide out the drawer box 3 to take out the bean paste for the next step of processing.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A filtering device with adjustable mesh size, comprising a bottom cylinder (1), characterized in that, The bottom cylinder (1) has a top cylinder (2) on its top surface. A lifting mechanism is provided on the outside of the bottom cylinder (1), and the lifting mechanism drives the top cylinder (2) to slide up and down. A fixing ring is fixedly installed inside the bottom cylinder (1), and a filter screen (9) is placed on the top surface of the fixing ring. A limiting mechanism is provided on the outside of the bottom cylinder (1), and the limiting mechanism restricts the position of the filter screen (9). A support base (14) is fixedly installed on the outside of the top cylinder (2). A fixing plate (16) is fixedly installed on the bottom surface of the support base (14) via an electric push rod (15). An assembly plate (17) is fixedly installed on the bottom surface of the assembly plate (17). A pressure plate (18) is rotatably connected to the lower end surface of the assembly plate (17). A driving mechanism is provided on the top surface of the assembly plate (17), and the driving mechanism drives the pressure plate (18) to rotate. A fixing frame (23) is provided on the top surface of the pressure plate (18). Multiple spring telescopic rods (24) are symmetrically installed on the bottom surface of the fixing frame (23). A scraper (25) is installed at the bottom end of the multiple spring telescopic rods (24) corresponding to each other. Each scraper (25) penetrates the pressure plate (18) and extends downward.

2. The filter device of claim 1, wherein, The limiting mechanism includes a U-shaped plate (11), which is fixedly installed on the outside of the bottom cylinder (1). A U-shaped rod (12) is slidably connected to the outside of the U-shaped plate (11). Two insertion holes (10) are opened on the outside of the filter screen (9). Both ends of the U-shaped rod (12) penetrate the bottom cylinder (1) and are locked in the corresponding insertion holes (10). Multiple limiting springs (13) are installed on the outside of the U-shaped rod (12) and the outside of the U-shaped plate (11).

3. The filter device of claim 2, wherein, The lifting mechanism includes a fixed seat (4), which is fixedly installed on the outside of the bottom cylinder (1). A threaded rod (7) is rotatably connected to the top surface of the fixed seat (4). A connecting rod (5) is fixedly installed on the top cylinder (2). A threaded sleeve (8) is fixedly installed at the bottom end of the connecting rod (5), and the threaded sleeve (8) is threadedly connected to the threaded rod (7). A first motor (6) is fixedly installed on the bottom surface of the fixed seat (4), and the output shaft of the first motor (6) is connected to the threaded rod (7).

4. The filter device of claim 3, wherein, The drive mechanism includes a second motor (20), which is fixedly mounted on the top surface of the assembly plate (17). The bottom end of the assembly plate (17) is rotatably connected to a rotating shaft (19), and the bottom end of the rotating shaft (19) is fixedly connected to the top surface of the pressure plate (18). The fixing frame (23) is fixedly connected to the rotating shaft (19). A driven gear (22) is installed on the outer side of the rotating shaft (19). The output shaft of the second motor (20) passes through the assembly plate (17) and is equipped with a drive gear (21), which meshes with the rotating shaft (19).

5. The filter device of claim 4, wherein, Multiple support rods are fixedly installed on the outer side of the top cylinder (2), and multiple guide posts are fixedly installed on the top surface of the fixed seat (4). A sliding sleeve is fixedly installed at the bottom end of each support rod, and each sliding sleeve is slidably connected to the guide post at the corresponding position.

6. The filter device of claim 5, wherein, A drawer box (3) is slidably connected inside the bottom cylinder (1), and both the first motor (6) and the second motor (20) are conical rotor motors.

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