Screening device

Abstract

The utility model discloses a screening device. The screening device comprises a base, a first mounting frame, a second mounting frame, a screening mechanism and a first driving mechanism. The first driving mechanism is connected with the second mounting frame, and the second mounting frame is in sliding connection with a first sliding rail of the first mounting frame, so that the second mounting frame can move in the extending direction of the first sliding rail under the driving of the first driving mechanism, and the second mounting frame is driven to move in a reciprocating manner; and the screening mechanism connected with the second mounting frame can shake, so that the screening function can be realized. Compared with manual screening, the screening device can improve the screening efficiency and reduce errors.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of screening, in particular to a screening device. BACKGROUND

[0002] At present, for the battery materials of lithium batteries, relevant personnel usually need to shake the screening equipment for a long time to screen the battery materials, so as to determine the cleanliness of the battery materials.

[0003] However, the screening efficiency of the above screening method is low and the error is large in the process of screening the battery materials. CONTENT OF THE INVENTION

[0004] The present application provides a screening device. The technical solution is as follows:

[0005] The screening device comprises a base, a first mounting frame, a second mounting frame, a screening mechanism and a first driving mechanism.

[0006] The first mounting frame is fixed on the base, and the first mounting frame has a first sliding rail.

[0007] The second mounting frame is in sliding connection with the first sliding rail.

[0008] The screening mechanism has a sieve basket for carrying objects to be screened, and the screening mechanism is connected to the side of the second mounting frame away from the first mounting frame.

[0009] The first driving mechanism is fixed on the first mounting frame and connected to the second mounting frame, and the first driving mechanism is configured to drive the second mounting frame to reciprocate along the extension direction of the first sliding rail.

[0010] Optionally, the first driving mechanism comprises a driving motor, an eccentric wheel and a first connecting rod, the eccentric wheel is in transmission connection with the driving motor, one end of the first connecting rod is in rotational connection with the eccentric wheel, and the other end of the first connecting rod is in rotational connection with the second mounting frame.

[0011] The axis of the connection between the first connecting rod and the eccentric wheel does not coincide with the axis of the eccentric wheel.

[0012] Optionally, the eccentric wheel comprises an eccentric wheel body and a first connecting piece in sliding connection with the eccentric wheel body, and the sliding direction of the first connecting piece relative to the eccentric wheel body is parallel to the radial direction of the eccentric wheel body.

[0013] The eccentric wheel body has a plurality of first connecting holes distributed along the sliding direction of the first connecting member relative to the eccentric wheel body, and the axis of each first connecting hole is not coincident with the axis of the eccentric wheel body;

[0014] The first connecting member has a second connecting hole capable of communicating with any one of the first connecting holes;

[0015] One end of the first connecting rod is rotatably connected to the eccentric wheel through the second connecting hole and the first connecting hole in communication.

[0016] Optionally, the eccentric wheel body further has a third connecting hole, and the driving motor has an output shaft which is drivingly connected to the eccentric wheel body through the third connecting hole;

[0017] The axis of the third connecting hole is coincident with the axis of the eccentric wheel body, and a part of the first connecting holes are distributed on one side of the third connecting hole, and the other part of the first connecting holes are distributed on the other side of the third connecting hole.

[0018] Optionally, the screening device further comprises a second driving mechanism fixed to the side of the second mounting frame away from the first mounting frame and connected to the screening mechanism, and the second driving mechanism is configured to drive the screening mechanism to move in a direction perpendicular to the base.

[0019] Optionally, the screening mechanism further comprises a clamping assembly and a connecting assembly, the connecting assembly is connected to the second driving mechanism, and the clamping assembly is fixed to one end of the connecting assembly facing the base and is connected to the sieve basket.

[0020] Optionally, the clamping assembly comprises a driving part and two clamping parts connected to the driving part.

[0021] The driving part is configured to drive the two clamping parts to move synchronously in the direction towards the sieve basket or in the direction away from the sieve basket.

[0022] Optionally, the driving part comprises a positioning block, a driving rod and two second connecting rods, the positioning block is sleeved on the driving rod and is movably connected to the driving rod, one end of each of the two second connecting rods is rotatably connected to the two sides of the positioning block opposite to each other, and the other end of each of the two second connecting rods is rotatably connected to the two clamping parts.

[0023] Optionally, the clamping assembly further comprises a housing, and a second sliding rail and a third sliding rail arranged inside the housing, the extending direction of the second sliding rail is parallel to the extending direction of the driving rod, and the extending direction of the third sliding rail intersects with the extending direction of the second sliding rail.

[0024] The positioning block and the two second connecting rods are located inside the housing, part of the driving rod is located inside the housing, and an end of the driving rod away from the positioning block extends out of the housing, and part of the two clamping portions is located inside the housing and the other part is located outside the housing.

[0025] The positioning block is in sliding connection with the second sliding rail, and the part of the two clamping portions located inside the housing is in sliding connection with the third sliding rail.

[0026] Optionally, the screening device further comprises a receiving portion on the base, the receiving portion has a receiving cavity and an opening in communication with the receiving cavity, and the opening is located on the side of the receiving portion away from the base.

[0027] The orthographic projection of the screening basket on the base is located in the orthographic projection of the opening on the base.

[0028] The technical scheme provided by the embodiments of the present application has at least the following beneficial effects:

[0029] In the screening device, the first driving mechanism is connected with the second mounting frame, and the second mounting frame is in sliding connection with the first sliding rail of the first mounting frame, so that the second mounting frame can move along the extending direction of the first sliding rail under the driving of the first driving mechanism. By driving the second mounting frame to reciprocate, the screening mechanism connected with the second mounting frame can be shaken, so that the screening function can be realized. Compared with manual screening, the screening device of the present application can improve the screening efficiency and reduce the error. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0031] Figure 1 is a perspective structural schematic view of a screening device provided by the embodiments of the present application;

[0032] Figure 2 is Figure 1 is an exploded structural schematic view of a first driving mechanism in the screening device provided by the present application.

[0033] Figure 3 is Figure 1 A top view structural schematic diagram of a screening device provided by the present application is provided.

[0034] Figure 4 is a perspective structural schematic diagram of another screening device provided by the present application;

[0035] Figure 5 is Figure 1 A perspective structural schematic diagram of a clamping assembly in a screening device provided by the present application is provided.

[0036] Figure 6 is Figure 1 A perspective structural schematic diagram of another clamping assembly in a screening device provided by the present application is provided.

[0037] Figure 7 is Figure 6 A top view structural schematic diagram of a clamping assembly provided by the present application is provided.

[0038] Figure 8 is a perspective structural schematic diagram of another screening device provided by the present application;

[0039] Figure 9 is Figure 8 A front view structural schematic diagram of a screening device provided by the present application is provided.

[0040] The specific embodiments of the present application have been shown through the above-mentioned drawings, and will be described in more detail hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application by any means, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the present application more clear, the embodiments of the present application will be described in further detail below with reference to the drawings.

[0042] A screening device is provided by the embodiments of the present application, please refer to Figure 1 , Figure 1 is a perspective structural schematic diagram of a screening device provided by the present application, and the screening device 000 includes a base 100, a first mounting frame 200, a second mounting frame 300, a screening mechanism 400 and a first driving mechanism 500. In the embodiments of the present application, the screening device 000 can be used for screening battery materials to determine the cleanliness of the battery materials. Exemplarily, the screening device 000 can be used for screening lithium iron phosphate, but the present application is not limited thereto.

[0043] The base 100 is used to carry the first mounting frame 200, the second mounting frame 300, the screening mechanism 400 and the first driving mechanism 500 and other components in the screening device 000, and the base 100 can improve the stability of the screening device 000 during operation.

[0044] The first mounting frame 200 is fixed on the base 100, and the first mounting frame 200 has a first sliding rail 210. Here, the first mounting frame 200 can be used to mount the screening mechanism 400 and the first driving mechanism 500. For example, the first mounting frame 200 can include a mounting plate and two mounting columns, one end of the mounting column is fixed on the base 100, and the other end of the mounting column is connected with the mounting plate. The plane where the mounting plate is located can be perpendicular to the plane where the base is located, so as to facilitate the installation of the screening mechanism 400 and the first driving mechanism 500. The support column can make the screening mechanism 400 suspended relative to the base 100, so that the screening mechanism 400 can screen.

[0045] The second mounting frame 300 is in sliding connection with the first sliding rail 210. Here, the second mounting frame 300 can have a sliding block corresponding to the first sliding rail 210, and the sliding block of the second mounting frame 300 and the first sliding rail 210 cooperate, that is, the second mounting frame 300 can slide relative to the first mounting frame 200. The first sliding rail 210 can limit the movement direction of the second mounting frame 300, that is, the second mounting frame 300 can move along the extension direction of the first sliding rail 210 under the action of an external force.

[0046] The screening mechanism 400 has a sieve basket 410 for carrying objects to be screened, and the screening mechanism 400 is connected to the side of the second mounting frame 300 away from the first mounting frame 200. Here, the sieve basket 410 has a screen, and after the objects to be screened are carried on the screen, the smaller particles in the objects to be screened can pass through the screen by shaking the sieve basket 410, thereby achieving the screening effect. Since the screening mechanism 400 is connected to the second mounting frame 300, the second mounting frame 300 can drive the screening mechanism 400 to move when moving.

[0047] The first driving mechanism 500 is fixed on the first mounting frame 200 and connected with the second mounting frame 300, and the first driving mechanism 500 is configured to drive the second mounting frame 300 to reciprocate along the extension direction of the first sliding rail 210. Here, the first driving mechanism 500 drives the screening mechanism 400 to move by driving the second mounting frame 300, and the extension direction of the first sliding rail 210 can be parallel to the direction of the plane where the base 100 is located, so that the objects to be carried in the sieve basket 410 can shake in the horizontal direction. This can realize the screening function, avoid the shaking amplitude of the objects to be carried in the vertical direction from being too large, reduce the risk of the objects to be carried from being separated from the sieve basket 410 due to shaking, and improve the stability and reliability of the screening device during operation.

[0048] To sum up, the embodiment of the present application provides a screening device. Wherein, since the first driving mechanism is connected with the second mounting frame, and the second mounting frame is slidingly connected with the first slide rail possessed by the first mounting frame, under the driving of the first driving mechanism, the second mounting frame can move along the extension direction of the first slide rail, and by driving the second mounting frame to reciprocate, the screening mechanism connected with the second mounting frame can be shaken, so that the screening function can be realized. Compared with manual screening, the screening device of the present application can improve the screening efficiency and reduce the error.

[0049] The first driving mechanism will be described below:

[0050] In an exemplary embodiment, please refer to Figure 2 and Figure 3 , Figure 2 is Figure 1 an exploded structural schematic view of a first driving mechanism in the screening device provided by the present application, Figure 3 is Figure 1 a top view structural schematic view of the screening device provided by the present application (for clearly showing the structure of the first driving mechanism, Figure 3 the safety shield is not shown, but the embodiment of the present application does not limit this). The first driving mechanism 500 includes a driving motor 510, an eccentric wheel 520 and a first connecting rod 530. The eccentric wheel 520 and the driving motor 510 are in transmission connection, one end of the first connecting rod 530 is in rotational connection with the eccentric wheel 520, and the other end of the first connecting rod 530 is in rotational connection with the second mounting frame 300.

[0051] Wherein, the driving motor 510 can convert electrical energy into mechanical energy, and since the eccentric wheel 520 and the driving motor 510 are in transmission connection, the driving motor 510 can drive the eccentric wheel 520 to rotate. The eccentric wheel 520 can transmit force to the first connecting rod 530 and change the movement direction of the first connecting rod 530.

[0052] The axis of the connection between the first connecting rod 530 and the eccentric wheel 520 does not coincide with the axis of the eccentric wheel 520. In this way, the first connecting rod 530 can transmit force to the second mounting frame 300 and change the movement direction of the second mounting frame 300, and further change the movement direction of the screening mechanism 400 connected with the second mounting frame 300.

[0053] In the embodiment of the present application, the driving principle of the first driving mechanism 500 can be that, in the process of driving the motor 510 to drive the eccentric wheel 520 to rotate one round, the eccentric wheel 520 can drive one end of the first connecting rod 530 to move, thereby driving the other end of the first connecting rod 530 connected with the second mounting frame 300 to move. Since the second mounting frame 300 is in sliding connection with the first sliding rail 210 of the first mounting frame 200, the eccentric wheel 520 and the first connecting rod 530 cooperate, i.e., the continuous rotary motion output by the motor 510 is converted into periodic linear motion, that is, the second mounting frame 300 can realize the effect of reciprocating motion along the extension direction of the first sliding rail 210, thereby driving the screening mechanism 400 to realize the effect of shaking.

[0054] Optionally, the eccentric wheel 520 comprises an eccentric wheel body 521 and a first connecting piece 522 in sliding connection with the eccentric wheel body 521, and the sliding direction of the first connecting piece 522 relative to the eccentric wheel body 521 is parallel to the radial direction of the eccentric wheel body 521.

[0055] The eccentric wheel body 521 has a plurality of first connecting holes K1, the plurality of first connecting holes K1 are distributed along the sliding direction of the first connecting piece 522 relative to the eccentric wheel body 521, and the axis of each first connecting hole K1 does not coincide with the axis of the eccentric wheel body 521. That is, the plurality of first connecting holes K1 are distributed along the radial direction of the eccentric wheel body 521, and the plurality of first connecting holes K1 correspond to a plurality of eccentric distances respectively.

[0056] The first connecting piece 522 has a second connecting hole K2, and the second connecting hole K2 can communicate with any one of the first connecting holes K1. In this way, by setting the second connecting hole K2 of the first connecting piece 522 to communicate with different first connecting holes K1, the eccentric distance of the eccentric wheel 520 can be adjusted.

[0057] The first connecting rod 530 is rotatably connected with the eccentric wheel 520 through the second connecting hole K2 and the first connecting hole K1 in communication. When the first connecting rod 530 is connected with different first connecting holes K1 at one end, the first connecting rod 530 can move different distances, thereby adjusting the reciprocating distance of the second mounting frame 300, i.e., adjusting the shaking distance of the screening mechanism 400. In this way, the flexibility of the screening device can be improved, and the shaking distance of the screening mechanism 400 can be flexibly adjusted according to the needs for different objects to be screened, thereby enhancing the applicability to different application scenarios.

[0058] Optionally, the eccentric wheel body 521 further has a third connecting hole K3, and the motor 510 has an output shaft 511, and the output shaft 511 passes through the third connecting hole K3 and is in transmission connection with the eccentric wheel body 521.

[0059] The axis of the third connecting hole K3 coincides with the axis of the eccentric wheel body 521, part of the first connecting holes K1 is distributed on one side of the third connecting hole K3, and the other part of the first connecting holes K1 is distributed on the other side of the third connecting hole K3. In this way, the driving motor 510 drives the eccentric wheel body 521 to rotate more stably, thereby improving the stability of the screening device 000 as a whole.

[0060] It should be noted that the embodiment of the present application does not strictly require that the axis of the third connecting hole K3 coincides with the axis of the eccentric wheel body 521, that is, the axis of the third connecting hole K3 can deviate from the axis of the eccentric wheel body 521. Since the third connecting hole K3 does not coincide with the first connecting hole K1, the effect of driving the second mounting frame 300 to reciprocate along the extension direction of the first sliding rail 210 can also be achieved.

[0061] Optionally, the first mounting frame 200 can include a mounting plate and two mounting columns, one end of the mounting column is fixed on the base 100, and the other end of the mounting column is connected with the mounting plate. The plane where the mounting plate is located can be perpendicular to the plane where the base is located. The first sliding rail 210 is arranged on the side of the mounting plate facing the screening mechanism 400.

[0062] In the first driving mechanism 500, the driving motor 510 can be installed on the side of the mounting plate away from the screening mechanism 400, and the eccentric wheel 520 and the first connecting rod 530 are installed on the side of the mounting plate facing the screening mechanism 400. In this way, the driving motor 510 can be hidden behind the mounting plate.

[0063] In addition, the side of the eccentric wheel 520 and the first connecting rod 530 facing the screening mechanism 400 can be provided with a mounting shield. The safety shield can prevent dust and prevent dust, and can also avoid external interference with the operation of the first driving mechanism 500, thereby improving the reliability of the screening device.

[0064] Optionally, please refer to Figure 4 , Figure 4 is another perspective view of a screening device provided by the embodiment of the present application. The first driving mechanism 500 further includes a speed regulator 540 and a controller 550, the controller 550 is electrically connected with the driving motor 510, and the controller 550 is also in communication connection with the speed regulator 540.

[0065] The speed regulator 540 has a control panel, and a user can input a required rotating speed by operating on the control panel. The speed regulator 540 sends the rotating speed to the controller 550, and the controller 550 can control the rotating speed of the driving motor 510 according to the received rotating speed. Since the rotating speed of the driving motor 510 is positively correlated with the frequency of the shaking of the screening mechanism 400, the frequency of the shaking of the screening mechanism 400 can be conveniently adjusted by the speed regulator 540 and the controller 550. In addition, the control panel of the speed regulator 540 can be provided with an on button or an off button, so that the user can conveniently turn on or turn off the screening function by the speed regulator 540 and the controller 550.

[0066] In the embodiment, the first driving mechanism is not limited to the driving motor, the eccentric wheel and the first connecting rod. In another exemplary embodiment, the first driving mechanism can also be an electric cylinder. The electric cylinder can realize high-precision linear motion, and thus the electric cylinder can push and pull the second mounting frame or make the second mounting frame reciprocate along the extension direction of the first sliding rail.

[0067] In an exemplary embodiment, please refer to Figure 1 The screening device 000 further includes a second driving mechanism 600. The second driving mechanism 600 is fixed on the side of the second mounting frame 300 away from the first mounting frame 200 and is connected with the screening mechanism 400. The second driving mechanism 600 is configured to drive the screening mechanism 400 to move along a direction perpendicular to the base 100.

[0068] The height of the sieve basket 410 in the screening mechanism 400 can be adjusted by the second driving mechanism 600. When the part of the object to be screened that passes through the sieve basket 410 needs to be accommodated by the accommodating part, the second driving mechanism 600 can also be adapted to different sizes of the accommodating part.

[0069] In the present application, the second driving mechanism 600 can apply a driving force by using a hand wheel 610 and a screw nut. The hand wheel 610 and the screw nut can cooperate to convert rotary motion into linear motion. The side of the second driving mechanism 600 facing the screening mechanism 400 can have a fourth sliding rail 620. The extension direction of the fourth sliding rail 620 is perpendicular to the base 100, and the screening mechanism 400 is in sliding connection with the fourth sliding rail 620. Thus, the fourth sliding rail 620 can realize a guiding effect. In this way, the second driving mechanism 600 can make the screening mechanism 400 move along a direction perpendicular to the base 100. However, the present embodiment is not limited thereto.

[0070] The screening mechanism will be described below.

[0071] Alternatively, please refer to Figure 1The screening mechanism 400 further comprises a clamping assembly 420 and a connecting assembly 430, the connecting assembly 430 is connected with the second driving mechanism 600, the clamping assembly 420 is fixed at one end of the connecting assembly 430 facing the base 100 and is clamped with the screening basket 410.

[0072] The connecting assembly 430 can slide in a direction perpendicular to the base 100 under the driving of the second driving mechanism 600 to realize the adjustment of the height of the screening basket 410. The clamping assembly 420 is used to clamp the screening basket 410 to ensure the stability during the shaking process.

[0073] Optionally, referring to Figure 1 and Figure 5 , Figure 5 is Figure 1 a schematic view of a clamping assembly in the screening device provided by the present application. The clamping assembly 420 comprises a driving part 421 and two clamping parts 422 connected with the driving part 421.

[0074] The driving part 421 is configured to drive the two clamping parts 422 to move in the direction towards the screening basket 410 or in the direction away from the screening basket 410 synchronously. That is, the driving part 421 can apply a driving force to the two clamping parts 422.

[0075] When the driving part 421 drives the two clamping parts 422 to move in the direction towards the screening basket 410 synchronously, it can ensure that the screening basket 410 is clamped by the two clamping parts 422. When the driving part 421 drives the two clamping parts 422 to move in the direction away from the screening basket 410 synchronously, it can facilitate the removal of the screening basket 410. In addition, the driving part 421 can also adjust the distance between the two clamping parts 422, so as to adapt to the screening baskets 410 within a certain size range, thereby improving the compatibility of the screening device 000.

[0076] Optionally, the driving part 421 comprises a positioning block 421a, a driving rod 421b and two second connecting rods 421c. The positioning block 421a is sleeved on the driving rod 421b and is movably connected with the driving rod 421b. One end of each of the two second connecting rods 421c is rotatably connected with the two sides of the positioning block 421a respectively, and the other end of each of the two second connecting rods 421c is rotatably connected with the two clamping parts 422.

[0077] The driving rod 421b can drive the positioning block to move along the extension direction of the driving rod 421b, and then the two second connecting rods 421c can rotate relative to the driving rod 421b, so as to drive the two clamping parts 422 to move in the direction towards the screening basket 410 or in the direction away from the screening basket 410 synchronously.

[0078] Optionally, referring to Figure 1 , Figure 6And Figure 7 , Figure 6 is Figure 1 The schematic diagram of the perspective structure of another clamping assembly in the screening device provided by the application is shown in FIG. 20. Figure 7 is Figure 6 The schematic diagram of the top structure of the clamping assembly provided by the application is shown in FIG. 21. The clamping assembly 420 further comprises a housing 423, and a second sliding rail 424 and a third sliding rail 425 arranged inside the housing 423. The extending direction of the second sliding rail 424 is parallel to the extending direction of the driving rod 421b, and the extending direction of the third sliding rail 425 intersects with the extending direction of the second sliding rail 424. For example, the extending direction of the third sliding rail 425 can be perpendicular to the extending direction of the second sliding rail 424.

[0079] The positioning block 421a and the two second connecting rods 421c are located inside the housing 423. Part of the driving rod 421b is located inside the housing 423, and the end of the driving rod 421b away from the positioning block 421a extends out of the housing 423. Part of the two clamping portions 422 is located inside the housing 423, and the other part is located outside the housing 423.

[0080] The housing 423 can protect the driving portion 421 and prevent dust, and can facilitate the arrangement of the second sliding rail 424 and the third sliding rail 425. For the two clamping portions 422, the housing 423 can also guide the clamping portions 422 to some extent, thereby improving the stability of the clamping portions 422 during movement.

[0081] The positioning block 421a is in sliding connection with the second sliding rail 424, and the part of the two clamping portions 422 located inside the housing 423 is in sliding connection with the third sliding rail 425. In this way, the second sliding rail 424 can limit the sliding of the positioning block 421a along the extending direction of the second sliding rail 424, and the third sliding rail 425 can limit the synchronous sliding of the two clamping portions 422 along the extending direction of the third sliding rail 425, thereby improving the stability of the driving portion 421 and the clamping portion 422 during operation.

[0082] Optionally, please refer to Figure 8 , Figure 8 The schematic diagram of the perspective structure of another screening device provided by the application is shown in FIG. 22. The screening device 000 further comprises a receiving portion 700 located on the base 100. The receiving portion 700 has a receiving cavity 710, and an opening K4 in communication with the receiving cavity 710. The opening K4 is located on the side of the receiving portion 700 away from the base 100.

[0083] The orthographic projection of the sieve basket 410 on the base 100 is located within the orthographic projection of the opening K4 on the base 100. In this way, the part of the objects to be screened with smaller particles can pass through the sieve screen and fall into the receiving cavity 710 of the receiving portion 700, thereby avoiding pollution and improving the cleanliness of the screening device 000.

[0084] In the embodiment of the present application, the receiving part 700 can be an ultrasonic cleaning machine. The ultrasonic cleaning machine is based on ultrasonic waves to make the object vibrate. Since the receiving part 700 is placed on the base 100, the receiving part 700 can play a certain auxiliary vibration role for the sieve basket 410. On the other hand, the part of the objects to be screened that passes through the sieve falls into the receiving cavity 710 of the receiving part 700, and the liquid in the receiving cavity 710 can also flush away the part of the objects to be screened.

[0085] Optionally, please refer to Figure 8 and Figure 9 , Figure 9 is Figure 8 the front view structural schematic diagram of the screening device provided. The receiving part 700 can further include an automatic water inlet pipe 720, an automatic water outlet pipe 730 and a water level sensor 740. The water level sensor 740 can determine the water level in the receiving cavity 710 according to the sensed liquid pressure. In this way, when the water level sensor 740 senses that the water level is low, the automatic water inlet pipe 720 can be controlled to fill water, and when the water level sensor 740 senses that the water level is high, the automatic water outlet pipe 730 can be controlled to drain water.

[0086] In addition, a counterweight can also be arranged on the base 100. The counterweight can increase the weight to maintain the balance, ensure that the driving motor 510 maintains the balance when running at high speed, and thus can improve the stability of the screening device.

[0087] In summary, the embodiment of the present application provides a screening device. Since the first driving mechanism is connected with the second mounting frame, and the second mounting frame is slidingly connected with the first slide rail of the first mounting frame, under the driving of the first driving mechanism, the second mounting frame can move along the extension direction of the first slide rail. By driving the second mounting frame to reciprocate, the screening mechanism connected with the second mounting frame can be shaken, so that the screening function can be realized. Compared with manual screening, the screening device of the present application can improve the screening efficiency and reduce the error.

[0088] It should be noted that in the drawings, the dimensions of layers and regions can be exaggerated for clarity. Also, it can be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element or layer, or intervening layers can also be present. In addition, it can be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element or layer, or one or more intervening layers or elements can also be present. In addition, it can also be understood that when a layer or element is referred to as being "between" two layers or elements, it can be the only layer or element between the two layers or elements, or one or more intervening layers or elements can also be present. Similar reference numerals indicate similar elements throughout the specification.

[0089] In the present application, the terms "first", "second", "third" and "fourth" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance. The term "a plurality" refers to two or more, unless otherwise expressly specified.

[0090] The above description is only optional embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A screening device, characterized in that, The screening device includes: a base, a first mounting frame, a second mounting frame, a screening mechanism, and a first driving mechanism; The first mounting bracket is fixed to the base, and the first mounting bracket has a first slide rail; The second mounting bracket is slidably connected to the first slide rail; The screening mechanism has a sieve basket for holding the object to be screened, and the screening mechanism is connected to the side of the second mounting frame away from the first mounting frame. The first drive mechanism is fixed on the first mounting bracket and connected to the second mounting bracket. The first drive mechanism is configured to drive the second mounting bracket to reciprocate along the extension direction of the first slide rail.

2. The screening device according to claim 1, characterized in that, The first driving mechanism includes: a drive motor, an eccentric wheel, and a first connecting rod. The eccentric wheel and the drive motor are connected in a transmission connection. One end of the first connecting rod is rotatably connected to the eccentric wheel, and the other end of the first connecting rod is rotatably connected to the second mounting bracket. Wherein, the axis at the connection between the first connecting rod and the eccentric wheel does not coincide with the axis of the eccentric wheel.

3. The screening device according to claim 2, characterized in that, The eccentric wheel includes: an eccentric wheel body, and a first connecting member slidably connected to the eccentric wheel body, wherein the sliding direction of the first connecting member relative to the eccentric wheel body is parallel to the radial direction of the eccentric wheel body. The eccentric wheel body has a plurality of first connecting holes, which are distributed along the sliding direction of the first connector relative to the eccentric wheel body, and the axis of each first connecting hole does not coincide with the axis of the eccentric wheel body. The first connector has a second connection hole, which can communicate with any one of the first connection holes; One end of the first connecting rod is rotatably connected to the eccentric wheel through the second connecting hole and the first connecting hole.

4. The screening device according to claim 3, characterized in that, The eccentric wheel body also has a third connecting hole, and the drive motor has an output shaft, which passes through the third connecting hole and is connected to the eccentric wheel body for transmission. The centerline of the third connecting hole coincides with the centerline of the eccentric wheel body. A portion of the first connecting holes are distributed on one side of the third connecting hole, and another portion of the first connecting holes are distributed on the other side of the third connecting hole.

5. The screening device according to any one of claims 1 to 4, characterized in that, The screening device further includes a second drive mechanism, which is fixed on the side of the second mounting frame away from the first mounting frame and connected to the screening mechanism. The second drive mechanism is configured to drive the screening mechanism to move in a direction perpendicular to the base.

6. The screening device according to claim 5, characterized in that, The screening mechanism further includes a clamping component and a connecting component. The connecting component is connected to the second drive mechanism, and the clamping component is fixed to one end of the connecting component facing the base and engages with the screening basket.

7. The screening device according to claim 6, characterized in that, The clamping assembly includes: a driving part, and two clamping parts connected to the driving part; The drive unit is configured to drive the two clamping parts to move synchronously in the direction toward the sieve basket or in the direction away from the sieve basket.

8. The screening device according to claim 7, characterized in that, The driving unit includes: a positioning block, a driving rod, and two second connecting rods. The positioning block is sleeved on the driving rod and movably connected to the driving rod. One end of each of the two second connecting rods is rotatably connected to the two sides of the positioning block that are opposite to each other. The other end of each of the two second connecting rods is rotatably connected to the two locking parts.

9. The screening device according to claim 8, characterized in that, The clamping assembly further includes: a housing, and a second slide rail and a third slide rail disposed inside the housing, wherein the extension direction of the second slide rail is parallel to the extension direction of the drive rod, and the extension direction of the third slide rail intersects with the extension direction of the second slide rail; The positioning block and the two second connecting rods are both located inside the housing; a portion of the driving rod is located inside the housing, and one end of the driving rod opposite to the positioning block extends out of the housing; a portion of the two locking parts is located inside the housing, and the other portion is located outside the housing; The positioning block is slidably connected to the second slide rail, and the portion of the two clamping parts located inside the housing is slidably connected to the third slide rail.

10. The screening device according to any one of claims 1 to 4, 6 to 9, characterized in that, The screening device further includes: a storage part located on the base, the storage part having a storage cavity and an opening communicating with the storage cavity, the opening being located on the side of the storage part away from the base; The orthographic projection of the sieve basket on the base is located within the orthographic projection of the opening on the base.

Images