A device for peeling a Chinese jujube

By combining the screening and peeling mechanisms, and utilizing the bidirectional impact of the adjusting components and hammers, along with water flow assistance, the problem of unstable peeling and high fruit breakage rate in jujube peeling devices when processing different particle sizes has been solved, achieving a highly efficient and low-loss peeling process.

CN224539388UActive Publication Date: 2026-07-24陕西省林业科学院
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
陕西省林业科学院
Filing Date
2025-09-10
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing jujube peeling devices suffer from problems such as unstable peeling rate, high fruit breakage rate, large water consumption, and complex operation when processing jujubes of different sizes. They also have difficulty in achieving rapid linkage adjustment of parameters and poor equipment versatility.

Method used

The system employs a combination of screening and peeling mechanisms. By adjusting the components, the opening of the screening outlet and the distance between the rotary table and the stationary table are adjusted synchronously. Combined with the bidirectional impact of the hammers and the assistance of water flow, it ensures efficient peeling of jujubes of different particle sizes.

Benefits of technology

It achieves efficient peeling of jujubes of different sizes, reduces fruit breakage and water consumption, simplifies operation steps, and improves the automation and versatility of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sour jujube peeling device, including frame and with frame fixed connection and series arrangement's screening mechanism and peeling mechanism and adjusting assembly, the outlet end of screening mechanism is equipped with with the outlet end port sliding connection for adjusting the valve of opening size, adjusting assembly includes hydraulic cylinder and connecting plate, and the sliding direction of valve and fixed disc is same, and the telescopic end of hydraulic cylinder is fixedly connected with cylindrical shell, and the board surface of connecting plate is fixedly connected with the fixed end of hydraulic cylinder, and is fixedly connected with valve and fixed disc to drive or position the position of both simultaneously, the utility model discloses the connecting plate of adjusting assembly is associated with the valve of controlling screening outlet opening and the fixed disc of adjusting peeling space, and the synchronous adjustment of " outlet opening size " and " the distance between carousel - fixed disc " is realized with the help of hydraulic cylinder telescopic, solves the sour jujube peeling device of prior art to different particle size sour jujube poor adaptability, high fruit rate, the problem of unstable peeling rate.
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Description

Technical Field

[0001] This utility model relates to the field of food processing technology, and more specifically to a device for peeling jujubes. Background Technology

[0002] Sour jujube, also known as thorn, wild jujube, mountain jujube, and kudzu needle, has round, flattened round, or oval fruits with red or purplish-red skin and thin, loose flesh that tastes sweet and sour. Sour jujube is highly nutritious and also has medicinal value.

[0003] In the field of jujube deep processing, removing the outer skin of the raw material is a crucial step. Currently, the industry generally adopts the following two methods:

[0004] Wet roller peeling;

[0005] The jujubes are tumbled in a drum with abrasive protrusions, relying on friction between the materials and between the materials and the drum wall to peel off. This process requires continuous and large amounts of water, which leads to: the peel and pulp easily sticking together again after separation, resulting in an unstable peeling rate; small-diameter jujubes tend to overflow prematurely with the water flow, while large-diameter jujubes are prone to getting stuck in the gaps between the abrasive particles, causing "over-peeling" or "under-peeling"; to accommodate different particle sizes, operators have to frequently stop the machine to replace perforated baffles or adjust the water volume, resulting in high labor intensity and poor continuity.

[0006] Dry centrifugal peeling;

[0007] The jujubes are thrown against a fixed wall by a high-speed turntable, and the skin is peeled off by impact. Although this method saves a lot of water, it has several drawbacks: the fixed distance between the turntable and the wall makes it poorly adaptable to changes in particle size, causing small fruits to bounce in the gaps and large fruits to be forcibly squeezed, resulting in a high rate of broken fruit; the skin is only subjected to unidirectional impact, resulting in a single peeling trajectory, and the processing time in dead corners needs to be extended, leading to increased fruit pulp temperature and darkening of color; the gap adjustment mechanism and the opening of the feed inlet are controlled independently, requiring operators to make secondary adjustments based on experience, making it difficult to achieve real-time linkage and limiting the equipment's versatility.

[0008] Therefore, how to provide a new jujube peeling device that can efficiently peel jujubes of different sizes while minimizing damage to the pulp, and also achieve rapid linkage adjustment of peeling parameters, reduce water consumption and fruit breakage rate, is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0009] In view of this, the present invention provides a jujube peeling device, which aims to solve the above-mentioned technical problems.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A jujube peeling device includes: a frame, a screening mechanism and a peeling mechanism, both fixedly connected to the frame and arranged in series, and an adjustment component;

[0012] The outlet end of the screening mechanism is equipped with a valve that is slidably connected to the outlet port to adjust the opening size;

[0013] The peeling mechanism includes a cylindrical shell, a turntable, a fixed plate, and a servo motor. The cylindrical shell has a rotating chamber, in which the turntable and the fixed plate are located. The turntable is rotatably connected to the rotating chamber. The fixed plate is arranged parallel to the turntable and is spaced apart by peeling spaces. The turntable and the rotating chamber are slidably connected along the axial direction of the turntable, and hammers for removing the outer skin of jujubes are fixedly connected to the opposite surfaces of the turntable and the fixed plate. The inlet end of the cylindrical shell corresponds to the peeling space and is connected to the outlet end of the screening mechanism through a pipeline. The fixed end of the servo motor is fixedly connected to the cylindrical shell, and the drive end of the servo motor is connected to the turntable for transmission.

[0014] The adjustment assembly includes a hydraulic cylinder and a connecting plate. The valve and the fixed plate slide in the same direction. The telescopic end of the hydraulic cylinder is fixedly connected to the cylindrical housing. The plate surface of the connecting plate is fixedly connected to the fixed end of the hydraulic cylinder and is also fixedly connected to the valve and the fixed plate to simultaneously drive or position both.

[0015] Therefore, this utility model uses an adjusting component and a connecting plate to link the valve controlling the outlet opening of the screening mechanism with the fixed plate that adjusts the distance between itself and the turntable. The size of the outlet opening and the distance between the turntable and the fixed plate are adjusted synchronously by the extension and retraction of the hydraulic cylinder. During use, the valve removes the jujubes in the same batch from smallest to largest as it opens, preventing leakage and incomplete peeling, simplifying the operation steps and improving the versatility of the equipment. Hammers are set on the opposing surfaces of the turntable and the fixed plate in the peeling mechanism. They work together with the rotation of the turntable to form bidirectional impact friction, ensuring that the jujube skin is removed evenly, taking into account both peeling efficiency and fruit pulp integrity. The overall structure effectively improves the automation level, adaptability and product quality of jujube processing.

[0016] Preferably, the screening mechanism includes a screening base plate, a screening disc, and a second servo motor. The screening base plate is fixedly connected to the frame and has a rotating groove on its upper surface. The screening disc is rotatably connected to the bottom surface of the rotating groove. Multiple columns are fixedly connected to the upper surface of the screening disc. The fixed end of the second servo motor is fixedly connected to the screening base plate, and the power output end of the second servo motor is connected to the screening disc for transmission.

[0017] Preferably, the screening disc and the turntable are arranged in parallel and at an angle.

[0018] Preferably, the interval between the fixed plate and the rotary plate is greater than the minimum distance between the bottom of the valve and the upper surface of the screening plate.

[0019] Preferably, the hammers corresponding to the turntable are arranged in a uniform array along the axial direction of the turntable.

[0020] Preferably, the hammers corresponding to the fixed plate are arranged in a uniform array along the axial direction of the fixed plate.

[0021] Preferably, the hammers corresponding to the turntable and the hammers corresponding to the fixed plate are arranged alternately.

[0022] Preferably, it also includes a flushing pipe, which is fixedly connected to the side wall of the cylindrical shell and communicates with the rotating chamber, and the outlet of the flushing pipe is located between the turntable and the fixed plate.

[0023] Preferably, the flushing pipeline is arranged at an angle along the tilt direction of the turntable.

[0024] Preferably, there are two flushing pipes, which are symmetrically arranged on both sides of the frame.

[0025] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a jujube peeling device, which has the following beneficial effects:

[0026] By adjusting the connecting plate of the assembly, the valve controlling the opening of the screening outlet is linked to the fixed plate adjusting the peeling space. The hydraulic cylinder extends and retracts to achieve synchronous adjustment of the "outlet opening size" and the "rotary-fixed plate distance." During use, the valve can be gradually opened, allowing smaller-diameter jujubes from the same batch to enter the peeling space through the smaller opening. At this time, the synchronously reduced rotary-fixed plate distance tightly encloses the small jujubes, preventing leakage or incomplete peeling caused by the small jujubes jumping within the gap. As the valve gradually opens wider, larger-diameter jujubes enter. The synchronously increased rotary-fixed plate distance accommodates the larger jujubes, preventing them from being squeezed and damaged, while ensuring that the hammers effectively act on the surface of the larger jujubes. This achieves efficient peeling of jujubes of all sizes, completely solving the pain points of traditional equipment where "small jujubes are missed and large jujubes are over-peeled." Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 The attached figure is a schematic diagram of the structure of a jujube peeling device provided by this utility model;

[0029] Figure 2 The attached figure is a partial cross-sectional view of a jujube peeling device provided by this utility model;

[0030] Figure 3 for Figure 2 A magnified view of a section at point A;

[0031] Figure 4 for Figure 2 A magnified view of section B;

[0032] Figure 5 The attached figure is a partial sectional view of the frame, screening base plate and cylindrical shell provided by this utility model in the assembled state;

[0033] Figure 6 The attached figure is a partial sectional view of the frame, screening base plate and peeling mechanism provided by this utility model in the assembled state;

[0034] Figure 7 for Figure 6 A magnified view of section C;

[0035] Figure 8 The attached figure is a schematic diagram of the structure of the fixing plate provided by this utility model;

[0036] Figure 9 The attached figure is a structural schematic diagram of the locator provided by this utility model from another perspective;

[0037] Figure 10 The attached figure is a structural schematic diagram of the valve and connecting column provided by this utility model in the assembled state.

[0038] in:

[0039] 1-Frame; 2-Screening mechanism; 3-Peeling mechanism; 4-Adjusting component; 5-Flushing pipe; 20-Valve; 21-Screening base plate; 22-Screening disc; 23-Servo motor II; 30-Hammer; 31-Cylindrical shell; 32-Turntable; 33-Fixed disc; 34-Servo motor I; 41-Hydraulic cylinder; 42-Connecting plate; 43-Connecting column I; 211-Rotating groove; 221-Column; 310-Rotating chamber; 311-Outlet pipe; 331-Fixed disc body; 332-Side guard; 333-Connecting column II. Detailed Implementation

[0040] 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. See the appendix. Figure 1 To be continued Figure 10 This utility model discloses a jujube peeling device, including: a frame 1, a screening mechanism 2 and a peeling mechanism 3, which are fixedly connected to the frame 1 and arranged in series, and an adjustment component 4;

[0041] The outlet end of the screening mechanism 2 is equipped with a valve 20 that is slidably connected to the outlet port to adjust the opening size;

[0042] The peeling mechanism 3 includes a cylindrical shell 31, a turntable 32, a fixed plate 33, and a servo motor 34. The cylindrical shell 31 has a rotating chamber 310, and the turntable 32 and the fixed plate 33 are located in the rotating chamber 310. The turntable 32 is rotatably connected to the rotating chamber 310. The fixed plate 33 is arranged parallel to the turntable 32 and is spaced apart by peeling spaces. The turntable 32 and the rotating chamber 310 are slidably connected along the axial direction of the turntable 32, and hammers 30 for removing the outer skin of jujubes are fixedly connected to the opposite surfaces of the turntable 33. The inlet end of the cylindrical shell 31 corresponds to the peeling space and is connected to the outlet end of the screening mechanism 2 through a pipeline. The fixed end of the servo motor 34 is fixedly connected to the cylindrical shell 31, and the drive end of the servo motor 34 is connected to the turntable 32 for transmission.

[0043] The adjusting assembly 4 includes a hydraulic cylinder 41 and a connecting plate 42. The valve 20 and the fixed plate 33 slide in the same direction. The telescopic end of the hydraulic cylinder 41 is fixedly connected to the cylindrical housing 31. The plate surface of the connecting plate 42 is fixedly connected to the fixed end of the hydraulic cylinder 41, and is also fixedly connected to the valve 20 and the fixed plate 33 to simultaneously drive or position the two.

[0044] Specifically, the fixed plate 33 includes a fixed plate body 331, a retaining edge 332, and a second connecting column 333. The fixed plate body 331 is disc-shaped, and its lower plate surface is arranged opposite to the plate surface of the turntable 32. The retaining edge 332 is annular and is fixedly connected to the edge of the upper plate surface of the fixed plate body 331. The second connecting column 333 is coaxially arranged with the fixed plate body 331, and its first end is fixedly connected to the upper plate surface of the fixed plate body 331. The second end of the second connecting column 333 is fixedly connected to the connecting plate 42.

[0045] Specifically, it also includes a connecting column 43, one end of which is fixedly connected to the valve 20, and the other end is fixedly connected to the connecting plate 42.

[0046] In this embodiment, the screening mechanism 2 includes a screening base plate 21, a screening disc 22, and a servo motor 23. The screening base plate 21 is fixedly connected to the frame 1, and its upper surface has a rotating groove 211. The screening disc 22 is rotatably connected to the bottom surface of the rotating groove 211. Multiple columns 221 are fixedly connected to the upper surface of the screening disc 22. The fixed end of the servo motor 23 is fixedly connected to the screening base plate 21, and the power output end of the servo motor 23 is drively connected to the screening disc 22. Thus, the servo motor 23 of the screening mechanism 2 drives the screening disc 22 to rotate within the rotating groove 211 of the screening base plate 21. The multiple columns 221 fixed to the upper surface of the screening disc 22 can disrupt the pile-up of jujubes, preventing material accumulation.

[0047] Specifically, the rotating groove 211 is used to hold the jujubes to be peeled.

[0048] Specifically, the screening base plate 21 is cylindrical, and the upper end surface of the screening base plate 21 is provided with a rotating groove 211 that is cylindrical. The screening disc 22 is arranged coaxially with the rotating groove 211, and the side wall of the screening disc 22 and the groove wall of the rotating groove 211 are spaced apart, with the interval being smaller than the diameter of the jujube.

[0049] More specifically, multiple columns 221 are arranged in a uniform array along the axial direction of the screening disk 22, and are arranged in multiple rings along the radial direction of the screening disk 22.

[0050] In some embodiments, the screening disc 22 and the turntable 32 are arranged in parallel and at an angle.

[0051] In other embodiments, the interval between the fixed plate 33 and the rotary plate 32 is greater than the minimum distance between the bottom end of the valve 20 and the upper surface of the screening plate 22.

[0052] In some specific embodiments, the hammer blocks 30 corresponding to the turntable 32 are arranged in a uniform array along the axial direction of the turntable 32.

[0053] Specifically, the turntable 32 corresponds to 3 sets of hammer blocks 30, which are arranged in a radial direction from the center of the turntable 32 outwards.

[0054] In this embodiment, the hammer blocks 30 corresponding to the fixed plate 33 are arranged in a uniform array along the axial direction of the fixed plate 33.

[0055] Specifically, the number of hammer blocks 30 corresponding to the fixed plate 33 is 3 sets, which are arranged in a row from the center of the rotating plate 32 outward along the radial direction of the fixed plate 33.

[0056] In this embodiment, the hammers 30 corresponding to the turntable 32 and the hammers 30 corresponding to the fixed plate 33 are arranged alternately. Thus, the alternate arrangement allows both small and large fruits to move smoothly along the inclined surface of the turntable 32, while continuously being acted upon by the hammers 30, thus balancing the peeling effect with the smoothness of the graded conveying and reducing material leakage caused by jamming.

[0057] Specifically, the three sets of hammer blocks 30 corresponding to the turntable 32 and the three sets of hammer blocks 30 corresponding to the fixed plate 33 are arranged alternately.

[0058] More specifically, the surface of the hammer block 30 is provided with serrated hammer marks.

[0059] In some embodiments, a rinsing pipe 5 is also included. The rinsing pipe 5 is fixedly connected to the side wall of the cylindrical housing 31 and communicates with the rotating chamber 310. The outlet of the rinsing pipe 5 is located between the turntable 32 and the fixed plate 33. Thus, the water flow can promptly remove the peeled peel from the peeling space, preventing the peel from sticking to the pulp again.

[0060] In other embodiments, the flushing conduit 5 is arranged at an angle to the inclined direction of the turntable 32. This allows the forward water flow to more efficiently direct the shed skin towards the outlet of the cylindrical housing 31, preventing skin buildup and blockage in the peeling space and reducing the risk of leakage.

[0061] Specifically, the lower side wall of the cylindrical shell 31 is fixedly connected to an outlet pipe 311 that communicates with the rotating chamber 310. The outlet pipe 311 is flat in shape, and the inlet end of the outlet pipe 311 is located between the turntable 32 and the fixed plate 33. The flat outlet pipe 311 makes it easier to discharge the peeled jujube fruit and jujube peel.

[0062] Specifically, the rinsing pipe 5 is inclined in the direction of the jujube peeling route.

[0063] In some other embodiments, there are two flushing pipes 5, symmetrically arranged on both sides of the frame 1. Thus, the two symmetrically arranged flushing pipes 5 can simultaneously supply water from both sides of the frame 1 to the peeling space, so that the water flow is evenly distributed in the peeling space between the turntable 32 and the fixed plate 33.

[0064] Specifically, it also includes a water pump and a water tank. The inlet end of the water pump is connected to the inside of the water tank through a pipeline, and the outlet end of the water pump is connected to the inlet ends of the two flushing pipelines 5 through a pipeline.

[0065] Specifically, it also includes a controller, which is electrically connected to the control modules of servo motor one, servo motor two, and water pump.

[0066] The specific principle and usage of the jujube peeling device provided in this embodiment are as follows:

[0067] Add the jujubes to be peeled into the rotating groove 211 of the screening bottom plate 21; start the external water pump to make the water flow from the rinsing pipe 5 uniform and adjust the water flow.

[0068] Turn on the servo motor 23 to drive the sieve disc 22 to rotate. The rotation speed can be adjusted according to the amount of jujubes. Usually, it is advisable to make the jujubes "not splash and can spread evenly".

[0069] The hydraulic cylinder 41 slowly extends, and through the connecting plate 42, it drives the valve 20 to gradually open, allowing small-diameter jujubes to pass through. At the same time, it drives the fixed plate 33 to move synchronously, so that the distance between the fixed plate 33 and the turntable 32 is adapted to the small fruit size.

[0070] Servo motor 34 drives turntable 32 to rotate. Small-diameter jujubes enter the rotating chamber 310 of cylindrical shell 31 through valve 20. Under the bidirectional action of hammers 30 of turntable 32 and fixed plate 33, the skin is peeled off. At the same time, the water flow of flushing pipe 5 assists in peeling and flushes the skin to the outlet pipe 311 at the lower position of cylindrical shell 31 for discharge.

[0071] Continuous grading process: As the number of small fruits on the screening disc 22 gradually decreases, the opening of valve 20 is further increased by hydraulic cylinder 41, and the distance between fixed disc 33 and rotating disc 32 is simultaneously increased, so that medium-sized and large-sized jujubes enter the peeling space in sequence, and the above peeling process is repeated until all jujubes in rotating trough 211 have been processed.

[0072] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0073] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for peeling jujubes, characterized in that, include: The frame (1) and the screening mechanism (2) and peeling mechanism (3) and the adjusting assembly (4) are fixedly connected to the frame (1) and arranged in series; The screening mechanism (2) is provided with a valve (20) that is slidably connected to the outlet port to adjust the opening size; The peeling mechanism (3) includes a cylindrical shell (31), a turntable (32), a fixed plate (33), and a servo motor (34). The cylindrical shell (31) has a rotating chamber (310), and the turntable (32) and the fixed plate (33) are located in the rotating chamber (310). The turntable (32) is rotatably connected to the rotating chamber (310). The fixed plate (33) is arranged parallel to the turntable (32) and is spaced apart by a peeling space. The rotating chamber (310) is slidably connected along the axial direction of the turntable (32) and is fixedly connected to the opposite surface of the fixed plate (33) with hammer blocks (30) for removing the outer skin of jujubes; the inlet end of the cylindrical shell (31) corresponds to the peeling space and is connected to the outlet end of the screening mechanism (2) through a pipeline; the fixed end of the servo motor (34) is fixedly connected to the cylindrical shell (31), and the drive end of the servo motor (34) is connected to the turntable (32) for transmission. The adjusting assembly (4) includes a hydraulic cylinder (41) and a connecting plate (42). The valve (20) and the fixed plate (33) slide in the same direction. The telescopic end of the hydraulic cylinder (41) is fixedly connected to the cylindrical housing (31). The plate surface of the connecting plate (42) is fixedly connected to the fixed end of the hydraulic cylinder (41) and is also fixedly connected to the valve (20) and the fixed plate (33) to simultaneously drive or position both of them.

2. The jujube peeling device according to claim 1, characterized in that, The screening mechanism (2) includes a screening base plate (21), a screening disc (22), and a servo motor (23). The screening base plate (21) is fixedly connected to the frame (1) and has a rotating groove (211) on its upper surface. The screening disc (22) is rotatably connected to the bottom surface of the rotating groove (211). Multiple columns (221) are fixedly connected to the upper surface of the screening disc (22). The fixed end of the servo motor (23) is fixedly connected to the screening base plate (21), and the power output end of the servo motor (23) is connected to the screening disc (22) in a transmission connection.

3. The jujube peeling device according to claim 2, characterized in that, The screening disc (22) and the turntable (32) are arranged in parallel and at an angle.

4. The jujube peeling device according to claim 2, characterized in that, The distance between the fixed plate (33) and the turntable (32) is greater than the minimum distance between the bottom end of the valve (20) and the upper surface of the screening plate (22).

5. The jujube peeling device according to claim 1, characterized in that, The hammers (30) corresponding to the turntable (32) are arranged in a uniform array along the axial direction of the turntable (32).

6. The jujube peeling device according to claim 5, characterized in that, The hammer blocks (30) corresponding to the fixed plate (33) are arranged in a uniform array along the axial direction of the fixed plate (33).

7. The jujube peeling device according to claim 6, characterized in that, The hammer blocks (30) corresponding to the turntable (32) and the hammer blocks (30) corresponding to the fixed plate (33) are arranged alternately.

8. The jujube peeling device according to claim 1, characterized in that, It also includes a flushing pipe (5), which is fixedly connected to the side wall of the cylindrical shell (31) and communicates with the rotating chamber (310). The outlet of the flushing pipe (5) is located between the turntable (32) and the fixed plate (33).

9. A jujube peeling device according to claim 8, characterized in that, The flushing pipe (5) is arranged at an angle along the tilt direction of the turntable (32).

10. A jujube peeling device according to claim 9, characterized in that, There are two flushing pipes (5), which are symmetrically arranged on both sides of the frame (1).