Screening device

Abstract

The utility model provides a screening device. The screening device comprises a mounting frame; the screening assembly is movably arranged on the mounting frame and has a screening state and a stopping state; the first driving part is arranged on the mounting frame and is in driving connection with the screening assembly; the movable connecting assembly is connected between the screening assembly and the first driving part; when the screening assembly is in the screening state, the first driving piece drives the screening assembly to move in a reciprocating mode in the preset linear direction, and when the screening assembly is in the stopping state, the screening assembly is arranged on the mounting frame in a turnover mode relative to the first driving piece through the movable connecting assembly. According to the technical scheme, the problem that impurities in materials are not easy to take out after the materials are screened in the prior art is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of material screening, in particular to a screening device. Background Art

[0002] During the production process of milk powder, paste powder may appear. Paste powder is in lumps and mixed with normal milk powder. In order to determine the content of paste powder and other impurities in the milk powder after the production is completed, the paste powder and other impurities need to be removed from the material. When removing paste powder and other impurities, the milk powder is generally sieved through a sieving frame.

[0003] In the related art, the screening frame is driven to move by a driving assembly, which can improve the screening efficiency. When the screening frame moves, it can drive the milk powder in the screening frame to vibrate, and then the milk powder in the screening frame can fall from the inside of the screening frame through the sieve holes of the screening frame to the bottom of the powder screening frame, while the impurities remain in the screening frame. Since the screening frame is fixed, the operator needs to remove the impurities in the material in the screening frame separately, which affects the production efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a screening device to solve the problem in the related art that impurities in the material are difficult to remove after the material is screened.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a screening device, including: a mounting frame; a screening component, which is movably arranged on the mounting frame and has a screening state and a stop state; a first driving member, which is arranged on the mounting frame and is drivingly connected to the screening component; a movable connection component, which is connected between the screening component and the first driving member; wherein, when the screening component is in the screening state, the first driving member drives the screening component to reciprocate along a preset straight line direction, and when the screening component is in the stop state, the screening component is flippably arranged on the mounting frame relative to the first driving member through the movable connection component.

[0006] Furthermore, the movable connection assembly includes a connecting rod and a rotating member connected to the connecting rod, the connecting rod is connected to the screening assembly, the rotating member is arranged on the first driving member, the connecting rod is swingably arranged relative to the first driving member, and the rotating member is rotatably arranged relative to the first driving member.

[0007] Furthermore, the movable connection assembly also includes a mounting seat, and the rotating member includes a ball head, and the ball head is movably mounted in the mounting seat.

[0008] Furthermore, the screening component includes a screening frame and a locking member arranged outside the screening frame, the movable connection component is connected to the locking member, and the screening frame and the locking member are detachably connected so that the locking member has a locking position for fixing the screening frame and an opening position for releasing the screening frame.

[0009] Furthermore, the screening frames include a plurality of screening frames, the screen holes of the plurality of screening frames have different diameters, and when the locking member is in the open position, the plurality of screening frames are selectively installed in the locking member.

[0010] Furthermore, the locking piece includes a hoop ring and a pulling piece, the screening frame is arranged in the hoop ring, the first end of the hoop ring and the second end of the hoop ring are adjacent and spaced apart, the hoop ring is surrounded by the outside of the screening frame, and the pulling piece is connected between the first end of the hoop ring and the second end of the hoop ring so that the first end of the hoop ring and the second end of the hoop ring are close to each other.

[0011] Furthermore, a connection frame is provided on the mounting frame, and the connection frame is located below the screening frame. The screening device also includes a collecting piece, and the collecting piece is connected to the connection frame.

[0012] Furthermore, the screening device also includes a baffle and a second driving member, the baffle is hinged on the mounting frame, the second driving member is arranged between the baffle and the mounting frame, the baffle has a blocking position for blocking the connecting frame and a avoiding position for avoiding the connecting frame and connecting the connecting frame and the collecting member, and the second driving member drives the baffle to move between the blocking position and the avoiding position.

[0013] Furthermore, the screening component also includes a first rolling member and a second rolling member located on the clamp ring, the first rolling member and the second rolling member are arranged opposite to each other, and both the first rolling member and the second rolling member can abut and cooperate with the mounting frame; the screening component also includes a first limit member and a second limit member extending along a preset straight line direction, the first limit member cooperates with the first rolling member, and the second limit member cooperates with the second rolling member.

[0014] Furthermore, the screening device also includes a movable seat, which includes a seat body and a support rod, the support rod is connected between the seat body and the mounting frame, and the seat body is movably arranged and located below the mounting frame.

[0015] By applying the technical solution of the utility model, a movably arranged screening component is arranged on the mounting frame, and the screening component has a screening state and a stop state. A first driving member is arranged on the mounting frame, and the first driving member is drivingly connected to the screening component. A movable connecting member is connected between the screening component and the first driving member. When the screening component is in the screening state, the first driving member drives the screening component to move back and forth along a preset straight line direction, and when the screening component is in the stop state, the screening component is flipably arranged on the mounting frame relative to the first driving member through the movable connecting member. Through the above-mentioned arrangement, the mounting frame provides support for the screening component and the first driving member, so that the screening component can move smoothly. When the screening component is in the screening state, the first driving member can provide driving force for the movement of the screening component, and then can drive the screening component to move back and forth along a preset straight line direction, that is, the material located in the screening component can move under the action of the first driving member, and then can fall below the screening component, so as to achieve the screening of the material. When the screening component is in a stopped state, under the action of the movable connection component, the screening component can be flipped relative to the first driving member, so that after the screening component screens the material, the impurities in the screening component can fall out of the screening component after the screening component is flipped, that is, the screening device can separate the material from the impurities in the material, and realize the screening of the material. Therefore, the technical solution of the present application effectively solves the problem that impurities in the material are not easy to remove after the material is screened in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a screening device according to the utility model is shown;

[0018] Figure 2 Shows Figure 1 A partial enlarged schematic diagram of the screening device at A;

[0019] Figure 3 Shows Figure 1 A front view schematic diagram of a baffle of a screening device in a avoidance position;

[0020] Figure 4 Shows Figure 1 A schematic diagram of the three-dimensional structure of the screening device when the screening frame is not installed;

[0021] Figure 5 Shows Figure 1 A schematic diagram of the three-dimensional structure of the screening frame and the locking member of the screening device when they are turned over;

[0022] Figure 6 Shows Figure 1 Schematic diagram of the three-dimensional structure of the screening frame and locking piece of the screening device after being turned over.

[0023] The above drawings include the following reference numerals:

[0024] 10. Mounting frame; 11. Connecting frame; 20. Screening assembly; 21. Screening frame; 22. Locking member; 221. Hoop ring; 222. Pulling member; 23. First rolling member; 24. Second rolling member; 25. First limiting member; 26. Second limiting member; 30. First driving member; 40. Active connecting assembly; 41. Connecting rod; 42. Rotating member; 421. Ball head; 43. Mounting seat; 50. Baffle; 60. Second driving member; 70. Moving seat; 71. Seat body; 72. Support rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0028] like Figure 1 and Figure 2 As shown, in this embodiment, the screening device includes: a mounting frame 10, a screening assembly 20, a first driving member 30 and a movable connection assembly 40. The screening assembly 20 is movably arranged on the mounting frame 10, and has a screening state and a stop state. The first driving member 30 is arranged on the mounting frame 10 and is drivingly connected to the screening assembly 20. The movable connection assembly 40 is connected between the screening assembly 20 and the first driving member 30. Among them, when the screening assembly 20 is in the screening state, the first driving member 30 drives the screening assembly 20 to reciprocate along a preset straight line direction, and when the screening assembly 20 is in the stop state, the screening assembly 20 is flipably arranged on the mounting frame 10 relative to the first driving member 30 through the movable connection assembly 40.

[0029] By applying the technical solution of this embodiment, a movably disposed screening component 20 is disposed on the mounting frame 10, and the screening component 20 has a screening state and a stop state. A first driving member 30 is disposed on the mounting frame 10, and the first driving member 30 is drivingly connected to the screening component 20. A movable connection component 40 is connected between the screening component 20 and the first driving member 30. When the screening component 20 is in the screening state, the first driving member 30 drives the screening component 20 to reciprocate along a preset straight line direction, and when the screening component 20 is in the stop state, the screening component 20 is flipably disposed on the mounting frame 10 relative to the first driving member 30 through the movable connection component 40. Through the above-mentioned arrangement, the mounting frame 10 provides support for the screening component 20 and the first driving member 30, so that the screening component 20 can move smoothly. When the screening component 20 is in the screening state, the first driving member 30 can provide driving force for the movement of the screening component 20, and then can drive the screening component 20 to move back and forth along the preset straight line direction, that is, the material in the screening component 20 can be moved under the action of the first driving member 30, and then can fall under the screening component 20, so as to achieve the screening of the material. When the screening component 20 is in the stopped state, under the action of the movable connection component 40, the screening component 20 can be flipped relative to the first driving member, so that after the screening component 20 screens the material, the impurities in the screening component 20 can fall from the screening component 20 after the screening component 20 is flipped, that is, the screening device can separate the material from the impurities in the material, so as to achieve the screening of the material. Therefore, the technical solution of this embodiment effectively solves the problem that impurities in the material are not easy to remove after the material is screened in the related art.

[0030] It should be noted that, in this embodiment, the material is a powder with relatively small particles, and the particle size of the impurities is larger than that of the material. The screening device of this embodiment can also be used to screen materials of two different sizes.

[0031] Specifically, in the process of producing milk powder, the milk powder may be mixed with paste powder, burnt powder or foreign matter, which will cause the milk powder production quality to not meet the requirements. The screening device can separate the milk powder from the paste powder, burnt powder and foreign matter mixed in the milk powder.

[0032] Preferably, in this embodiment, the first driving member 30 is a first cylinder. The telescopic direction of the first cylinder is a preset linear direction.

[0033] like Figure 1 and Figure 4As shown, in this embodiment, the movable connection assembly 40 includes a connecting rod 41 and a rotating member 42 connected to the connecting rod 41, the connecting rod 41 is connected to the screening assembly 20, the rotating member 42 is arranged on the first driving member 30, the connecting rod 41 is swingably arranged relative to the first driving member 30, and the rotating member 42 is rotatably arranged relative to the first driving member 30. The connecting rod 41 and the rotating member 42 connect the screening assembly 20 and the first driving member 30, and the rotating member 42 is rotatably arranged relative to the first driving member 30, and then the connecting rod 41 can be rotatably arranged relative to the first driving member 30, that is, the screening assembly 20 can be rotatably arranged relative to the first driving member 30, that is, when the screening assembly 20 is in a stopped state, after the screening assembly 20 is flipped relative to the first driving member 30, the impurities in the screening assembly can fall out of the screening assembly 20.

[0034] like Figure 4 As shown, in this embodiment, the movable connection assembly 40 further includes a mounting seat 43, and the rotating member 42 includes a ball head 421, which is movably mounted in the mounting seat 43. The ball head 421 enables the connecting rod 41 to achieve universal rotation when rotating, thereby making it easier to flip the screening assembly 20. The mounting seat 43 can limit the rotation of the ball head 421 to prevent the ball head 421 from falling off from the mounting seat 43.

[0035] Preferably, a spherical cavity is provided in the mounting seat 43, and the distance between the side of the spherical cavity away from the screening assembly 20 and the surface of the mounting seat 43 close to the screening assembly 20 is greater than the radius of the ball head 421, so that the ball head 421 can be prevented from falling off from the mounting seat 43. The mounting seat 43 is detachably connected to the telescopic rod of the first cylinder, so that the mounting seat 43 and the first cylinder are easily disassembled.

[0036] Specifically, in an embodiment not shown in the figure, the rotating member 42 can also be a rotating seat, which is rotatably connected to the mounting seat 43, and the connecting rod 41 is swingably hinged relative to the rotating seat, that is, the screening assembly 20 can swing relative to the rotating seat through the connecting rod, and then when the screening assembly 20 is flipped, the screening assembly 20 can drive the connecting rod 41 and the rotating seat to rotate relative to the first driving member 30 at the same time.

[0037] like Figure 1 and Figure 3As shown, in this embodiment, the screening assembly 20 includes a screening frame 21 and a locking member 22 disposed outside the screening frame 21, and the movable connection assembly 40 is connected to the locking member 22. The screening frame 21 and the locking member 22 are detachably connected so that the locking member 22 has a locking position for fixing the screening frame 21 and an open position for releasing the screening frame 21. The setting of the locking member 22 facilitates the fixing and removal of the screening frame 21. When the locking member 22 is in the locking position, the screening frame 21 can be fixed, and then the first driving member 30 can drive the screening frame 21 to move through the movable connection assembly 40. When the locking member 22 is in the open position, the screening frame 21 can be removed from the locking member 22.

[0038] like Figure 1 As shown, in this embodiment, the screening frame 21 includes a plurality of screening frames 21, and the screen holes of the plurality of screening frames 21 have different diameters. When the locking member 22 is in the open position, the plurality of screening frames 21 are selectively installed in the locking member 22. The above arrangement enables the screening device to screen materials of different sizes after the screening frame 21 is replaced, thereby improving the versatility of the screening device. The arrangement of the locking member 22 facilitates the replacement of different screening frames 21.

[0039] like Figures 1 to 6 As shown, in this embodiment, the locking member 22 includes a hoop ring 221 and a pulling member 222, the screening frame 21 is arranged in the hoop ring 221, the first end of the hoop ring 221 and the second end of the hoop ring 221 are adjacent and spaced, the hoop ring 221 is arranged outside the screening frame 21, and the pulling member 222 is connected between the first end of the hoop ring 221 and the second end of the hoop ring 221, so that the first end of the hoop ring 221 and the second end of the hoop ring 221 are close to each other. The pulling member 222 allows the first end and the second end of the hoop ring 221 to be close to each other, so that the hoop ring 221 can fix the screening frame 21.

[0040] Preferably, if Figure 2 As shown, the pulling member 222 includes an operating handle and a pulling belt hinged to the first end of the hoop ring 221, and a connecting hook arranged at the second end of the hoop ring 221, the first end of the pulling belt is connected to the operating handle, the second end of the pulling belt is hooked to the connecting hook, and the connecting opening of the connecting hook extends in a direction away from the operating handle.

[0041] Specifically, the first end of the operating handle is hingedly connected to the first end of the clamp ring, the second end of the operating handle is the operating end, and a connecting column is provided in the middle of the operating handle, and the connecting column is passed through the first end of the pulling belt, so that it is convenient to drive the first end of the pulling belt to move through the operating handle, and then the second end of the pulling belt can pull the connecting hook, so that the first end and the second end of the clamp ring are close to each other, thereby fixing the screening frame.

[0042] Of course, in an embodiment not shown in the figure, the pulling member 222 may also include a first connecting seat, a second connecting seat and a connecting stud, the connecting stud passes through the second connecting seat and is connected to the first connecting seat, the first connecting seat is arranged at the first end of the clamp ring 221, and the second connecting seat is arranged at the second end of the clamp ring 221. The connecting stud rotates to drive the first connecting seat and the second connecting seat to approach each other, thereby fixing the screening frame 21.

[0043] like Figure 1 and Figure 5 As shown, in this embodiment, a connecting frame 11 is provided on the mounting frame 10, and the connecting frame 11 is located below the screening frame 21. The screening device also includes a collecting member, and the collecting member is connected to the connecting frame 11. The setting of the connecting frame 11 facilitates the connection between the collecting member and the mounting frame 10, and then the materials screened by the screening frame 21 can fall into the collecting member, thereby realizing the collection of the materials.

[0044] Preferably, in this embodiment, the collecting member is a collecting bag, which facilitates the dumping of the collected materials.

[0045] Specifically, the collecting piece facilitates the cleaning of dust and observation of foreign matter under the screening frame, and also facilitates the collection of the screened material, thereby reducing a large amount of dust caused by the previous collection of materials.

[0046] like Figure 3 and Figure 4 As shown, in this embodiment, the screening device further includes a baffle 50 and a second driving member 60, the baffle 50 is hinged on the mounting frame 10, the second driving member 60 is arranged between the baffle 50 and the mounting frame 10, the baffle 50 has a blocking position for blocking the connecting frame 11 and a avoiding position for avoiding the connecting frame 11 and connecting the connecting frame 11 with the collecting member, and the second driving member 60 drives the baffle 50 to move between the blocking position and the avoiding position. The baffle 50 can separate the connecting frame 11 and the collecting member, so as to prevent the material from floating between the connecting frame 11 and the collecting member when the screening component is in the screening state, thereby preventing the material from floating outside the collecting member. The second driving member 60 enables the baffle 50 to move between the blocking position and the avoiding position, that is, after the screening component 20 completes the screening of the material, after the baffle 50 moves from the blocking position to the avoiding position, the material falling on the baffle 50 can move into the collecting member, so as to prevent the material from floating outside the collecting member.

[0047] Preferably, in this embodiment, the second driving member is a second cylinder.

[0048] like Figure 1 , Figure 3 , Figure 5 as well as Figure 6As shown, in this embodiment, the screening assembly 20 further includes a first rolling member 23 and a second rolling member 24 located on the hoop ring 221, the first rolling member 23 and the second rolling member 24 are arranged opposite to each other, and both the first rolling member 23 and the second rolling member 24 can abut against the mounting frame 10. The first rolling member 23 and the second rolling member 24 make the movement of the hoop ring 221 relative to the mounting frame 10 smoother.

[0049] Preferably, in this embodiment, the first rolling element 23 is a first bearing, and the second rolling element 24 is a second bearing, so that the movement of the hoop ring 221 is smoother, and further the movement of the screening frame 21 is smoother.

[0050] like Figure 3 As shown, in this embodiment, the screening assembly 20 further includes a first stopper 25 and a second stopper 26 extending along a preset straight line direction, the first stopper 25 is limited in position with the first rolling member 23, and the second stopper 26 is limited in position with the second rolling member 24. The first stopper 25 and the second stopper 26 can limit the first rolling member 23 and the second rolling member 24 respectively to prevent the first rolling member 23 and the second rolling member 24 from deviating from their positions when they move, and can also guide the movement of the first rolling member 23 and the second rolling member 24.

[0051] Preferably, in this embodiment, the first limiting member 25 is a first limiting block, and the second limiting member 26 is a second limiting block. Of course, in an embodiment not shown in the figure, the first limiting member may also be a first limiting groove, and the second limiting member may also be a second limiting groove, the first rolling member 23 is in sliding contact with the bottom of the first limiting groove, and the second rolling member 24 is in sliding contact with the bottom of the second limiting groove.

[0052] like Figure 1 , Figure 3 as well as Figure 5 As shown, in this embodiment, the screening device further includes a movable seat 70, and the movable seat 70 includes a seat body 71 and a support rod 72, and the support rod 72 is connected between the seat body 71 and the mounting frame 10, and the seat body 71 is movably arranged and located below the mounting frame 10. The support rod 72 can connect the seat body 71 and the mounting frame 10, and also allow a gap between the mounting frame 10 and the seat body 71, thereby providing space for the setting of the collection member. The seat body 71 can drive the mounting frame 10 to move through the support rod 72, so that the screening device can be moved to different positions, which is convenient for the placement and use of the screening device.

[0053] Preferably, in this embodiment, a support frame is further provided between the collecting member and the seat body 71, so that the collecting member can be limited in position, making the position of the collecting member more stable.

[0054] Specifically, in this embodiment, when impurities need to be poured out, the screening assembly 20 is first swung in a direction away from the seat body, so that the first rolling member 23 and the second rolling member 24 do not interfere with the flipping of the screening assembly 20, and then the screening assembly 20 is flipped over to allow the impurities in the screening frame 21 to fall out. When the screening frame 21 needs to be replaced, the locking member 22 is placed in the open position and the screening frame 21 is replaced.

[0055] It should be noted that after the milk powder is produced, the semi-finished products need to be tested online. The requirement for online monitoring of semi-finished products is to screen the powder in each box. When the screening device is not used, the inspector will manually screen the powder. The time required to screen each sample is between 17S-20S. About 210-216 samples are tested in 24 hours, and 13-15 samples are tested per day for sensory testing. It takes about 4620S to screen the powder. It is both manpower-consuming and time-consuming. Screening through a screening device saves the inspector's screening time. While screening, the inspector can also test other items at the same time.

[0056] Preferably, the screening device is powered by a 24V power supply. The screening device also includes a control member, a first knob, a detection member, and a second knob arranged at intervals on the mounting frame. The first knob controls the operation of the screening device through the control member, that is, controls the screening assembly 20 to switch between the screening state and the stop state. The detection member is a photoelectric detection member. The second knob controls the movement of the second driving member 60 through the control member, that is, enables the baffle 50 to move between the blocking position and the avoidance position.

[0057] When in use, pour the powder into the screening frame, turn on the first knob, the first cylinder will drive the screening frame to move back and forth, the detection photoelectric detects the magnetic ring inside the cylinder will trigger the solenoid valve to turn on, and the first cylinder extends. When the first cylinder is extended and the magnetic ring is separated from the detection photoelectric, the solenoid valve is closed, and the first cylinder retracts to complete an action along the preset straight line direction. The action frequency of the first cylinder is controlled by adjusting the air intake volume through the pressure regulating valve.

[0058] At present, the screening device has been used on site. Through many experiments, the powder screening time has been shortened from the original 17S-20S to the current 5S-6S. Under the premise of reducing the waste of manpower in manual powder screening, the powder screening inspection time is minimized to meet the use needs of online laboratories. At the same time, it is flexible and easy to use, which saves product release time, improves work efficiency, enables packaging to receive product information faster, and greatly reduces the large amount of dust generated by collecting screened powder. The use of a screening frame can ensure a constant powder screening frequency and reduce the manual powder screening frequency that is too large or too small, which causes errors in the judgment of paste powder or foreign matter and affects quality release. Experiments have proved that the screening device is practical and has a very good powder screening effect.

[0059] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0060] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0061] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0062] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A screening device, characterized in that: include: Mounting frame (10); A screening component (20), the screening component (20) being movably disposed on the mounting frame (10) and having a screening state and a stop state; a first driving member (30), the first driving member (30) being arranged on the mounting frame (10) and being drivingly connected to the screening assembly (20); A movable connection assembly (40), wherein the movable connection assembly (40) is connected between the screening assembly (20) and the first driving member (30); Wherein, when the screening component (20) is in a screening state, the first driving member (30) drives the screening component (20) to move back and forth along a preset straight line direction, and when the screening component (20) is in the stop state, the screening component (20) is flippably arranged on the mounting frame (10) relative to the first driving member (30) via the movable connection component (40).

2. The screening device according to claim 1, characterized in that: The movable connection component (40) includes a connecting rod (41) and a rotating member (42) connected to the connecting rod (41), wherein the connecting rod (41) is connected to the screening component (20), and the rotating member (42) is arranged on the first driving member (30), and the connecting rod (41) is swingably arranged relative to the first driving member (30), and the rotating member (42) is rotatably arranged relative to the first driving member (30).

3. The screening device according to claim 2, characterized in that: The movable connection assembly (40) further comprises a mounting seat (43), and the rotating member (42) comprises a ball head (421), and the ball head (421) is movably mounted in the mounting seat (43).

4. The screening device according to claim 1, characterized in that: The screening assembly (20) comprises a screening frame (21) and a locking member (22) arranged outside the screening frame (21), the movable connection assembly (40) is connected to the locking member (22), and the screening frame (21) and the locking member (22) are detachably connected so that the locking member (22) has a locking position for fixing the screening frame (21) and an opening position for releasing the screening frame (21).

5. The screening device according to claim 4, characterized in that: The screening frames (21) include a plurality of screening frames (21), the screen holes of the plurality of screening frames (21) having different diameters, and when the locking member (22) is in an open position, the plurality of screening frames (21) are selectively installed in the locking member (22).

6. The screening device according to claim 4, characterized in that: The locking member (22) comprises a hoop ring (221) and a pulling member (222); the screening frame (21) is arranged inside the hoop ring (221); the first end of the hoop ring (221) and the second end of the hoop ring (221) are adjacent to and spaced apart from each other; the hoop ring (221) is arranged outside the screening frame (21); and the pulling member (222) is connected between the first end of the hoop ring (221) and the second end of the hoop ring (221) so that the first end of the hoop ring (221) and the second end of the hoop ring (221) are close to each other.

7. The screening device according to claim 4, characterized in that: The mounting frame (10) is provided with a connection frame (11), the connection frame (11) is located below the screening frame (21), and the screening device further comprises a collecting member, the collecting member being connected to the connection frame (11).

8. The screening device according to claim 7, characterized in that: The screening device further comprises a baffle (50) and a second driving member (60); the baffle (50) is hinged on the mounting frame (10); the second driving member (60) is arranged between the baffle (50) and the mounting frame (10); the baffle (50) has a blocking position for blocking the connecting frame (11) and a avoiding position for avoiding the connecting frame (11) and connecting the connecting frame (11) and the collecting member; the second driving member (60) drives the baffle (50) to move between the blocking position and the avoiding position.

9. The screening device according to claim 6, characterized in that: The screening component (20) further comprises a first rolling member (23) and a second rolling member (24) located on the clamp ring (221), the first rolling member (23) and the second rolling member (24) being arranged opposite to each other, and both the first rolling member (23) and the second rolling member (24) being capable of abutting and cooperating with the mounting frame (10); the screening component (20) further comprises a first limiting member (25) and a second limiting member (26) extending along the preset straight line direction, the first limiting member (25) being in a limiting cooperation with the first rolling member (23), and the second limiting member (26) being in a limiting cooperation with the second rolling member (24).

10. The screening device according to any one of claims 1 to 9, characterized in that: The screening device further comprises a movable seat (70), wherein the movable seat (70) comprises a seat body (71) and a support rod (72), wherein the support rod (72) is connected between the seat body (71) and the mounting frame (10), and the seat body (71) is movably arranged and located below the mounting frame (10).

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