A kind of extrusion dewatering machine for kitchen waste treatment
By introducing components such as moving plates, sliding strips, pressing blocks, and scrapers into the kitchen waste treatment equipment, the problem of inconsistent waste thickness and poor dehydration effect has been solved, achieving uniform compression of waste and complete removal of moisture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU XINDANJING BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-16
AI Technical Summary
Existing food waste processing equipment suffers from poor dehydration results due to waste of varying thicknesses, especially thinner waste that cannot be adequately compressed.
It adopts components such as a moving plate, sliding strip, pressing block, control groove, electric push rod and pressure sensor. By controlling the pressure sensor to sense the pressure, it ensures that the garbage particles are uniform in size and fully squeezed. Combined with the design of scraper and water control groove, it can effectively remove residual water.
It achieves uniform compression and thorough dehydration of kitchen waste of varying thicknesses, improving the dehydration effect and ensuring complete removal of moisture.
Smart Images

Figure CN224359134U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste treatment, and in particular to a dehydrator for treating kitchen waste. Background Technology
[0002] Kitchen waste refers to the waste generated in daily life, food processing, catering services, and catering services provided by institutions. It generally has a moisture content between 70% and 90%. The high moisture content makes kitchen waste easy to decompose and produce an unpleasant odor, and it also increases the difficulty and cost of waste disposal.
[0003] A search revealed Chinese Patent Publication No. CN222844846U, which discloses a dewatering machine for processing kitchen waste. The machine includes a lower outer shell, with an upper outer shell mounted on its upper end. Both the upper and lower ends of the lower and upper outer shells are open and connected. A dewatering cylinder is fixedly installed at the center of the upper surface of the upper outer shell. The lower end of the dewatering cylinder's output extends through the top surface of the upper outer shell and into its interior, where it is fixedly connected to a dewatering pressure rod. A dewatering pressure plate is installed at the lower end of the dewatering pressure rod. A filter plate is fixedly installed inside the lower outer shell, and a drain pipe is fixedly connected to its lower end. A pipe cap is installed at the lower end of the drain pipe. Four support legs are fixedly installed in a rectangular array on the lower surface of the lower outer shell. This application allows for rapid dewatering of kitchen waste, enabling quick loading and unloading of the waste.
[0004] While the aforementioned application documents can achieve rapid and controlled pressure compression of kitchen waste, in actual use, due to the varying types and thicknesses of kitchen waste after dehydration, when thicker and thinner pieces of dehydrated kitchen waste are placed in the same position, the pressure sensor is triggered when the pressure plate comes into contact with the thicker piece. Consequently, the thinner piece of dehydrated kitchen waste cannot be fully compressed, resulting in poor dehydration. Therefore, a compression dehydrator for kitchen waste treatment is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a dehydrator for kitchen waste processing, which aims to improve the problem that the dehydration effect is easily poor when dehydrating waste of different thicknesses after dehydration.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a dewatering extrusion machine for kitchen waste treatment, comprising a machine body, a feeding hopper fixedly connected to the top of the machine body, a crushing chamber opened on the inner wall of the machine body, a crushing roller arranged inside the crushing chamber, the rotating shaft of the crushing roller being rotatably connected to the inner wall of the machine body, a dewatering chamber opened on the inner wall of the machine body below the crushing chamber, and a dewatering mechanism arranged inside the dewatering chamber;
[0007] The dehydration mechanism includes a movable plate, the outer wall of which is slidably connected to the inner wall of the dehydration chamber. A slide bar is slidably connected to the bottom end of the movable plate, and a pressure block is fixedly connected to the bottom end of the slide bar. A positioning component is provided on the outside of the slide bar and inside the machine body. A power component is provided at the top of the movable plate. A movable box is slidably connected to the inner wall of the machine body, and a filter plate is fixedly connected to the bottom end of the movable box. A scraping mechanism is provided inside the machine body below the filter plate.
[0008] As a further description of the above technical solution:
[0009] The control assembly includes a control groove, which is formed on the inner wall of the machine body and is connected to the dehydration chamber. A control block is provided inside the control groove, and one end of the control block near the middle of the machine body is fixedly connected to the front and rear ends of the slide bar.
[0010] As a further description of the above technical solution:
[0011] The power assembly includes an electric push rod, the top end of which is fixedly connected to the inner wall of the machine body, and a pressure sensor is fixedly connected to the output end of the electric push rod. The transmission end of the pressure sensor is fixedly connected to the upper surface of the moving plate.
[0012] As a further description of the above technical solution:
[0013] The wiping mechanism includes a scraper, with water control grooves on both the front and rear surfaces of the scraper. The inner walls of the machine body on both sides of the scraper have sliding grooves. A control plate is slidably connected to the inner wall of the sliding groove. One end of the control plate near the middle of the machine body is fixedly connected to the scraper. The rear end of the control plate is elastically connected to the inner wall of the sliding groove by a spring. A pull rope is fixedly connected to the rear end of the control plate. The end of the pull rope away from the control plate is fixedly connected to the lower surface of the moving plate.
[0014] As a further description of the above technical solution:
[0015] The inner wall of the machine body is provided with a groove for the pull rope to move, and a roller is provided at the corner of the pull rope.
[0016] As a further description of the above technical solution:
[0017] The bottom surface of the crushing chamber is set as an arc surface, and the lowest point of the crushing chamber is set in the middle. The inner wall of the machine body located below the crushing chamber is fixedly connected to a transmission pipe, and the interior of the transmission pipe is connected to the interior of the crushing chamber.
[0018] As a further description of the above technical solution:
[0019] The water control trough is an isosceles trapezoid, and the upper end of the water control trough is longer than the lower end.
[0020] As a further description of the above technical solution:
[0021] The machine body has a drawer that slides on the inner wall below the scraper, and the inner length of the drawer is longer than the length of the scraper.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, by setting up a moving plate, sliding strip, pressing block, control groove, control block, electric push rod, pressure sensor, moving box, filter plate, crushing roller, etc., it is ensured that the kitchen waste can fall above the filter plate after being crushed, thereby ensuring that when the kitchen waste is squeezed, its particle size is uniform and relatively small compared to the initial state, thus ensuring that some thinner waste can also be fully squeezed to achieve the effect of full dehydration.
[0024] 2. In this utility model, by setting up a scraper, water control groove, sliding groove, control plate, spring, pull rope, etc., it is ensured that when the squeezing is completed, the moving plate can drive the scraper to move during the upward resetting process, thereby achieving the effect of scraping off the water droplets remaining at the bottom of the filter plate. Attached Figure Description
[0025] Figure 1 This is a three-dimensional structural diagram of the overall structure of this utility model;
[0026] Figure 2 This is a three-dimensional cross-sectional diagram of the overall structure of this utility model.
[0027] Figure 3 This is a three-dimensional cross-sectional view of the overall structure of this utility model;
[0028] Figure 4 This is a three-dimensional structural disassembly diagram of some parts of the dehydration mechanism and the scraping mechanism in this utility model;
[0029] Figure 5 This is a three-dimensional cross-sectional view of the body and its internal structure in this utility model.
[0030] Legend:
[0031] 1. Machine body; 2. Feed hopper; 3. Crushing chamber; 4. Crushing roller; 5. Dewatering chamber; 6. Dewatering mechanism; 7. Scraper mechanism; 8. Transmission pipe; 9. Drawer; 61. Moving plate; 62. Sliding bar; 63. Pressing block; 64. Position control assembly; 65. Power assembly; 641. Position control groove; 642. Position control block; 651. Electric push rod; 652. Pressure sensor; 66. Moving box; 67. Filter plate; 71. Scraper; 72. Water control groove; 73. Sliding groove; 74. Control board; 75. Spring; 76. Pull rope. Detailed Implementation
[0032] 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.
[0033] Reference Figures 1-3 This utility model provides an embodiment of a kitchen waste dewatering machine, comprising a body 1. The body 1 is a kitchen waste dewatering machine used to dewater kitchen waste. A feeding hopper 2 is fixedly connected to the top of the body 1. The feeding hopper 2 is shaped like a truncated pyramid with an isosceles trapezoidal shape in its side view. The feeding hopper 2 is hollow with openings at both the top and bottom, and the top area of the feeding hopper 2 is larger than the bottom area. A crushing chamber 3 is provided on the inner wall of the body 1. The crushing chamber 3 is used to crush the kitchen waste. The bottom surface of the crushing chamber 3 is set as an arc surface, and the lowest point of the crushing chamber 3 is located in the middle. The body 1 is located on the inner wall below the crushing chamber 3. A fixed connection to the conveying pipe 8 is provided. The bottom shape of the crushing chamber 3 ensures that the crushed kitchen waste can enter the conveying pipe 8. Since there is a lot of water in the kitchen waste, it can slide into the conveying pipe 8 relatively easily after being lubricated with water. The interior of the conveying pipe 8 is connected to the interior of the crushing chamber 3. The crushing chamber 3 is equipped with a crushing roller 4. The exterior of the machine body 1 is equipped with a power component for driving the crushing roller 4 to rotate. The power component is a motor. The rotating shaft of the crushing roller 4 is rotatably connected to the inner wall of the machine body 1. The inner wall of the machine body 1 below the crushing chamber 3 is provided with a dehydration chamber 5, which is used to dehydrate the crushed kitchen waste.
[0034] Reference Figures 2-4The dehydration chamber 5 is equipped with a dehydration mechanism 6, which includes a movable plate 61. The movable plate 61 has a hole in the middle for the crushed kitchen waste to fall. The outer wall of the movable plate 61 is slidably connected to the inner wall of the dehydration chamber 5. The bottom end of the movable plate 61 is slidably connected to a slide bar 62. There are two slide bars 62, and the two slide bars 62 are symmetrically arranged about the middle surface of the left and right directions of the machine body 1. The sliding direction of the slide bars 62 is left and right. The bottom end of the slide bar 62 is fixedly connected to a pressure block 63. The pressure block 63 is cuboid in shape. There are two pressure blocks 63, and the two pressure blocks 63 are fixedly connected to their respective slide bars 62.
[0035] Reference Figure 2 , Figure 4 and Figure 5 A control assembly 64 is provided on the outside of the slider 62 and inside the body 1. The control assembly 64 includes a control groove 641, which is composed of an inclined groove at the top and a vertical groove at the bottom. The control groove 641 is opened on the inner wall of the body 1 and is connected to the dehydration chamber 5. A control block 642 is provided inside the control groove 641. The control block 642 is cylindrical in shape and its diameter matches the width of the control groove 641. One end of the control block 642 near the middle of the body 1 is fixedly connected to the front and rear ends of the slider 62.
[0036] Reference Figures 2-4 A power assembly 65 is provided at the top of the movable plate 61. The power assembly 65 includes an electric push rod 651. The electric push rod 651 enables the movable plate 61 to move up and down. The top of the electric push rod 651 is fixedly connected to the inner wall of the machine body 1. A pressure sensor 652 is fixedly connected to the output end of the electric push rod 651. The pressure sensor 652 is signal-connected to the electric push rod 651. When the pressure sensor 652 reaches its threshold, it can stop the electric push rod 651 from pushing. The transmission end of the pressure sensor 652 is fixedly connected to the upper surface of the movable plate 61. A movable box 66 slides on the inner wall of the machine body 1. A cuboid groove is opened on the inner wall of the movable box 66. The shape of the cuboid groove is consistent with the shape of the two pressure blocks 63 after they come into contact. A filter plate 67 is fixedly connected to the bottom end of the movable box 66.
[0037] Reference Figure 2 , Figure 4 and Figure 5The machine body 1 has a scraping mechanism 7 located inside the filter plate 67. The scraping mechanism 7 includes a scraper 71, which is used to scrape off the water adhering to the bottom of the filter plate 67. A drawer 9 slides on the inner wall of the machine body 1 below the scraper 71. The drawer 9 is used to collect the water squeezed out from the kitchen waste. The inner length of the drawer 9 is longer than the length of the scraper 71. This length setting ensures that all the scraped water can fall into the drawer 9. The front and rear surfaces of the scraper 71 are provided with water control grooves 72. The shape of the water control grooves 72 is an isosceles trapezoid, and the upper end of the water control grooves 72 is longer than the lower end. This water control groove setting ensures that the scraped water can more easily enter the middle of the drawer 9. Sliding grooves 73 are provided on the inner walls of the machine body 1 on the left and right sides of the scraper 71. A control plate 74 is slidably connected to the inner wall of the sliding groove 73. One end of the control plate 74 near the middle of the machine body 1 is fixedly connected to the scraper 71. The rear end of the control plate 74 is elastically connected to the inner wall of the sliding groove 73 by a spring 75. One end of the spring 75 is fixedly connected to the rear end of the control plate 74, and the other end of the spring 75 is fixedly connected to the inner wall of the sliding groove 73. A pull rope 76 is fixedly connected to the rear end of the control plate 74. The pull rope 76 is non-elastic. The end of the pull rope 76 away from the control plate 74 is fixedly connected to the lower surface of the moving plate 61. The inner wall of the machine body 1 is provided with a groove for the pull rope 76 to move. A roller is provided at the corner of the pull rope 76. The roller is designed to ensure that the pull rope 76 is not easily worn during the pulling process, thus ensuring the life of the pull rope 76.
[0038] Working principle: When in use, the staff first pours the kitchen waste into the feed hopper 2. At this time, the crushing roller 4 rotates under the drive of the power component, thus crushing the poured kitchen waste.
[0039] Because kitchen waste contains a high amount of moisture, when it is crushed, a lot of liquid will adhere to its outer surface. As a result, the kitchen waste can be pushed by the liquid and enter the transmission pipe 8 along the lower surface of the crushing chamber 3. Under the action of gravity, it will continue to fall and eventually land inside the moving box 66.
[0040] At this time, the staff activates the electric push rod 651, which causes the electric push rod 651 to move downward, thereby causing the pressure sensor 652 and the moving plate 61 to move downward together.
[0041] As the movable plate 61 moves downward, it also drives the slide bar 62 and the pressure block 63 to move downward together, and the slide bar 62 in turn drives the control block 642 to move synchronously with it.
[0042] Since the control block 642 is located inside the control slot 641 and the upper part of the control slot 641 is inclined, the control block 642 first moves towards the middle of the body 1 during the downward movement. After moving to the inclined vertical junction of the control slot 641, it moves downward again.
[0043] Since the slider 62, the pressure block 63 and the control block 642 move synchronously, the pressure block 63 also moves towards the middle of the body 1 during the downward movement, and then moves downward. When the pressure block 63 moves downward, it just enters the recessed position of the moving box 66 and squeezes the kitchen waste inside.
[0044] When the bottom of the pressure block 63 comes into contact with the kitchen waste, there is resistance at its bottom. Therefore, the pressure sensor 652 can sense the pressure. When the pressure reaches the threshold, the electric push rod 651 stops working.
[0045] At this point, the staff controls the electric push rod 651, causing its output end to drive the pressure sensor 652 and the moving plate 61 to move upward. As the moving plate 61 moves upward, it pulls the pull rope 76, which in turn drives the scraper 71 to move, thereby scraping away the water droplets remaining at the bottom of the filter plate 67.
[0046] When the movable plate 61 is reset, the pressure block 63 is also reset. Therefore, at this time, the inside of the movable box 66 only contains the filtered kitchen waste. At this time, the staff can pull out the movable box 66 to take out the filtered kitchen waste and pull out the drawer 9 to take out the filtered sewage.
[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A dewatering machine for processing kitchen waste, comprising a body (1), characterized in that: The top of the machine body (1) is fixedly connected to a feed hopper (2), and the inner wall of the machine body (1) is provided with a crushing chamber (3). The crushing chamber (3) is provided with a crushing roller (4), and the shaft of the crushing roller (4) is rotatably connected to the inner wall of the machine body (1). The inner wall of the machine body (1) below the crushing chamber (3) is provided with a dewatering chamber (5), and the dewatering chamber (5) is provided with a dewatering mechanism (6). The dehydration mechanism (6) includes a movable plate (61), the outer wall of which is slidably connected to the inner wall of the dehydration chamber (5), a slide bar (62) is slidably connected to the bottom end of the movable plate (61), a pressure block (63) is fixedly connected to the bottom end of the slide bar (62), a control component (64) is provided on the outside of the slide bar (62) and the inside of the machine body (1), a power component (65) is provided at the top of the movable plate (61), a movable box (66) is slidably connected to the inner wall of the machine body (1), a filter plate (67) is fixedly connected to the bottom end of the movable box (66), and a scraper mechanism (7) is provided inside the machine body (1) below the filter plate (67).
2. The extrusion dewatering machine for kitchen waste treatment according to claim 1, characterized in that: The control assembly (64) includes a control groove (641), which is located on the inner wall of the body (1) and is connected to the dehydration chamber (5). A control block (642) is provided inside the control groove (641), and one end of the control block (642) near the middle of the body (1) is fixedly connected to the front and rear ends of the slide bar (62).
3. The extrusion dewatering machine for kitchen waste treatment according to claim 1, characterized in that: The power assembly (65) includes an electric push rod (651), the top end of which is fixedly connected to the inner wall of the body (1), and a pressure sensor (652) is fixedly connected to the output end of the electric push rod (651). The transmission end of the pressure sensor (652) is fixedly connected to the upper surface of the moving plate (61).
4. The extrusion dewatering machine for kitchen waste treatment according to claim 1, characterized in that: The scraping mechanism (7) includes a scraper (71), and a water control groove (72) is provided on the front and rear surfaces of the scraper (71). The inner walls of the body (1) on the left and right sides of the scraper (71) are provided with sliding grooves (73). A control plate (74) is slidably connected to the inner wall of the sliding groove (73). One end of the control plate (74) near the middle of the body (1) is fixedly connected to the scraper (71). The rear end of the control plate (74) is elastically connected to the inner wall of the sliding groove (73) by a spring (75). A pull rope (76) is fixedly connected to the rear end of the control plate (74). One end of the pull rope (76) away from the control plate (74) is fixedly connected to the lower surface of the moving plate (61).
5. A dewatering extruder for treating kitchen waste according to claim 4, characterized in that: The inner wall of the body (1) is provided with a groove for the pull rope (76) to move, and a roller is provided at the corner of the pull rope (76).
6. The extrusion dewatering machine for kitchen waste treatment according to claim 1, characterized in that: The bottom surface of the crushing chamber (3) is set as an arc surface, and the lowest point of the crushing chamber (3) is set in the middle. The inner wall of the body (1) below the crushing chamber (3) is fixedly connected to a transmission pipe (8), and the interior of the transmission pipe (8) is connected to the interior of the crushing chamber (3).
7. A dewatering machine for processing kitchen waste according to claim 4, characterized in that: The water control trough (72) is an isosceles trapezoid, and the upper end of the water control trough (72) is longer than the lower end.
8. The extrusion dewatering machine for kitchen waste treatment according to claim 4, characterized in that: The body (1) has a drawer (9) that slides on the inner wall below the scraper (71), and the inner length of the drawer (9) is longer than the length of the scraper (71).