Chemical material screening device

Abstract

The utility model belongs to the technical field of chemical material screening, and particularly relates to a chemical material screening device which comprises a shell, a protection frame is installed in the shell in a sliding mode, a screening plate is installed at the bottom of the protection frame in an inserted mode, a groove is formed in the protection frame, a threaded rod is rotatably installed in the groove, and a rectangular rod is installed in the groove and located on the threaded rod in a sliding mode. A plurality of round rods making contact with the top of the sieve plate are fixedly mounted at the bottom of the rectangular rod, a motor is fixedly mounted on one side of the protection frame, and an output shaft of the motor penetrates through one side of the protection frame, extends into the groove and is coaxially connected with one end of a threaded rod; when the whole device is used, it is ensured that chemical materials placed on the sieve plate can be dispersed, the chemical materials are prevented from being stacked together, the screening efficiency of the chemical materials is improved, the sieve plate can be pulled out of the protection frame, leakage holes in the sieve plate can be cleaned, and the screening efficiency of the chemical materials is improved. Chemical materials are prevented from being clamped in the leaking holes in the sieve plate, and normal use of the sieve plate is prevented from being affected.

Description

Technical Field

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

[0002] Chemical materials refer to various raw materials, intermediates, products and other substances used in the production process of the chemical industry. When processing chemical materials, it is generally necessary to screen the materials so that materials of different particle sizes can be easily processed.

[0003] For example, the Chinese patent with the publication number CN220804338U discloses a chemical material screening device, including a screening box: the front side of the screening box is provided with a discharge hole 1, the right side of the screening box is provided with a discharge hole 2, the inner side of the discharge hole 2 is fixedly connected with a discharge plate, the upper side of the screening box is fixedly connected with a feed frame, the inner side of the screening box is provided with a screening unit, the screening unit includes a chute, the chute is provided at the rear side of the screening box, the inner side of the chute is slidably connected with a slide plate, and the front side of the slide plate is fixedly connected with a screen plate. By providing a screening box, a chute, a slide plate, a screen plate, a discharge plate, a stopper, a control block and a cam, the cam is controlled to rotate, so that the cam drives the inclined screen plate to move left and right, and under the action of inertia, the chemical material on the screen plate is screened more evenly and thoroughly, the screening effect is increased, and the material is quickly discharged through the inclined discharge plate.

[0004] The above patent has the following problems:

[0005] This patent has some disadvantages when used, such as: when the device is used, when placing chemical materials on the sieve plate, under the action of gravity, the chemical materials will accumulate near the stopper, which will affect the screening efficiency, and the sieve plate in the device is not easy to disassemble and clean, and some chemical materials will sometimes get stuck in the leakage holes on the sieve plate, which will affect the normal use of the sieve plate. In view of this, we propose a chemical material screening device. Utility Model Content

[0006] The purpose of the utility model is to provide a chemical material screening device to solve the problems raised in the above background technology.

[0007] In view of this, the utility model provides a chemical material screening device, comprising:

[0008] An outer shell, a protective frame is slidably installed in the outer shell, a sieve plate is plugged and installed at the bottom of the protective frame, a groove is opened in the protective frame, a threaded rod is rotatably installed in the groove, a rectangular rod is slidably installed in the groove and on the threaded rod, a plurality of round rods in contact with the top of the sieve plate are fixedly installed at the bottom of the rectangular rod, a motor is fixedly installed on one side of the protective frame, the output shaft of the motor passes through one side of the protective frame, extends into the groove and is coaxially connected with one end of the threaded rod;

[0009] A driving assembly, which is located at the rear side of the housing and is used to drive the protective frame to move back and forth;

[0010] A fixing assembly, the fixing assembly is located in the protection frame and is used to fix the screen plate in the protection frame;

[0011] A baffle is plugged and installed on the left side of the shell, a feed frame is fixedly installed on the top of the shell, a sealing cover is rotatably installed on the top of the feed frame, and a collection box is plugged and installed in the shell and below the screen plate.

[0012] In the technical scheme, when in use, the staff rotates and opens the sealing cover by hand, and then puts the chemical material into the sieve plate in the shell through the feed frame. At this time, the chemical material will be accumulated in the middle position of the top of the sieve plate. Then, the sealing cover is rotated and closed by hand to prevent foreign debris from falling into the shell. Then the motor is started to make the output shaft of the motor drive the threaded rod to rotate forward. Under the action of the thread, the threaded rod will drive the rectangular rod to move in the direction of the chemical material. Then, the rectangular rod will drive a number of round rods to move in the direction of the chemical material until the round rods contact the chemical material. In the process of displacement, the round rods will evacuate the accumulated chemical materials, and the output shaft of the motor drives the threaded rod to rotate in the opposite direction, so that the round rods can be moved back and forth to ensure that the chemical materials on the sieve plate can be evacuated and leveled.

[0013] After the chemical materials are evacuated and leveled, the driving assembly is set to drive the protection frame to move back and forth left and right, and the protection frame then drives the screen plate to move back and forth left and right, so that it can screen the chemical materials. During the screening process, some smaller chemical materials will leak from the screen plate and fall into the collection box below;

[0014] After the screening is completed, the staff can pull out the collection box containing smaller chemical materials from the outer shell, pour out the smaller chemical materials in the collection box for collection, and then insert the collection box into the outer shell. Then, the staff pulls the baffle upwards to pull the baffle out of the outer shell, and then, through the set fixing assembly, the fixing assembly releases the fixation of the sieve plate. At this time, the sieve plate can be pulled to be pulled out of the protective frame. Subsequently, the larger chemical materials in the protective frame will fall into the collection box, and the staff can clean the sieve plate to prevent some chemical materials from getting stuck in the leakage holes on the sieve plate. After cleaning, the sieve plate can be inserted into the protective frame again, and then the fixing assembly can be used to fix the sieve plate.

[0015] In the above technical solution, further, the driving component includes:

[0016] A protective shell, the protective shell is fixedly installed on the rear side of the shell, a limiting groove is provided on the rear side of the shell and located in the protective shell, a limiting block fixed to the protective frame is slidably installed in the limiting groove, a limiting plate is fixedly installed on one side of the limiting block and located in the protective shell, a disc is rotatably installed in the protective shell and on one side of the limiting plate, a cylinder is fixedly installed on the side of the disc close to the limiting plate, and one end of the cylinder is located in the limiting plate, a motor is fixedly installed on one side of the protective shell, and the output shaft of the motor passes through one side of the protective shell and is coaxially connected to the disc.

[0017] In the present technical solution, the motor is started, and the output shaft of the motor drives the disc to rotate, and then the disc will drive the cylinder to rotate. During the continuous rotation, the cylinder will slide in the limit plate and drive it to reciprocate left and right. Then, the limit plate will drive the limit block to reciprocate left and right, and the limit block will drive the protective frame to reciprocate left and right, and the protective frame will drive the screen plate to reciprocate left and right, so that it can screen chemical materials.

[0018] In the above technical solution, further, the limit block is located between the limit plate and the protective frame, the limit plate is located between the limit block and the disc, one end of the cylinder is slidably connected to the limit plate, and the output shaft of the motor is rotatably connected to the protective shell.

[0019] In this technical solution, it is ensured that the limit block, the limit plate and the disc can operate normally; it is ensured that the cylinder can slide in the limit plate; and it is ensured that the motor can operate normally.

[0020] In the above technical solution, further, the fixing assembly includes:

[0021] A slide groove is opened in the protective frame and is located on one side of the groove. An insert block is slidably installed in the slide groove. The bottom of the insert block passes through the bottom of the slide groove and extends into the screen plate. A pull rod is fixedly installed on the top of the insert block and is located in the slide groove. The top end of the pull rod passes through the top of the slide groove and extends to the outside. A spring is provided in the slide groove and on the pull rod.

[0022] In the present technical solution, during disassembly, the staff pulls the baffle upward to pull it out from the outer shell, and then pulls the pull rod to drive the plug block to move upward. At this time, the spring will shrink due to the compression until the plug block is pulled out from the sieve plate. At this time, the sieve plate can be pulled to pull it out of the protective frame. Subsequently, the larger chemical materials in the protective frame will fall into the collection box, and the staff can clean the sieve plate to prevent some chemical materials from getting stuck in the leakage holes on the sieve plate. After cleaning, the sieve plate can be inserted into the protective frame again. Under the action of the spring rebound force, the spring will push the plug block and insert it into the sieve plate again, thereby fixing the sieve plate.

[0023] In the above technical solution, further, the lower end of the plug block is plugged into the screen plate, the pull rod is slidably connected to the slide groove and the protective frame, and the two ends of the spring are tightly welded to the top of the plug block and the inner wall of the slide groove respectively.

[0024] In this technical solution, it is ensured that the lower end of the insert block can be inserted into the screen plate; it is ensured that the pull rod can operate normally; and it is ensured that the structure of the spring is stable.

[0025] In the above technical solution, further, the rectangular rod is threadedly connected to the threaded rod, one end of the rectangular rod away from the threaded rod is in contact with the inner wall of the protective frame, and the output shaft of the motor is rotationally connected to the protective frame.

[0026] In this technical solution, under the action of the thread, the rotation of the threaded rod will drive the rectangular rod to move, ensuring that the several round rods at the bottom of the rectangular rod can evacuate the piled chemical materials evenly, and ensuring that the output shaft of the motor can operate normally.

[0027] In the above technical solution, further, the plurality of round rods are linearly and evenly spaced, and the diameter of the leakage holes on the sieve plate is 1 cm-2 cm.

[0028] In this technical solution, it is ensured that a plurality of round rods can evacuate the chemical materials piled together; it is ensured that the sieve plate can screen out smaller chemicals.

[0029] The beneficial effects of the utility model are:

[0030] 1. The chemical material screening device ensures that the chemical materials placed on the screen plate can be evacuated through the cooperation between the protective frame, grooves, threaded rods, motors, rectangular rods and round rods to avoid the accumulation of chemical materials, which is conducive to subsequent screening and improves the efficiency of chemical material screening.

[0031] 2. The chemical material screening device, through the cooperation between the provided sealing cover, sieve plate, baffle plate and fixing assembly, after the baffle plate is pulled out from the outer shell, the fixing of the sieve plate can be released through the fixing assembly on the protective frame, so that the sieve plate can be pulled out from the protective frame, so that the leakage holes on the sieve plate can be cleaned, preventing chemical materials from being stuck in the leakage holes on the sieve plate, and avoiding affecting the normal use of the sieve plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is one of the overall structural diagrams of the utility model;

[0033] Figure 2 This is a schematic diagram of the internal structure of the housing in the utility model;

[0034] Figure 3 This is a schematic diagram of the internal structure of the protection frame in the utility model;

[0035] Figure 4 This is a schematic diagram of the structure of the limit plate and the disc explosion in the utility model;

[0036] Figure 5 It is a schematic diagram of the cross-sectional structure of the protection frame in the utility model;

[0037] Figure 6 This is a schematic diagram of the internal structure of the protection frame in the utility model;

[0038] Figure 7 For this utility model Figure 6 The enlarged structural diagram at A in the middle;

[0039] Figure 8 This is a schematic diagram of the regional structure of the limiting plate in the utility model;

[0040] Fig. 9 It is a structural schematic diagram of the housing in the utility model;

[0041] Fig.10 This is the second schematic diagram of the overall structure of the utility model;

[0042] Fig.11 It is a structural schematic diagram of the limiting plate in the utility model.

[0043] The symbols in the figure are:

[0044] 1. Outer shell; 2. Feed frame; 3. Sealing cover; 4. Protective shell; 5. Motor; 6. Baffle; 7. Collecting box; 8. Limiting groove; 9. Sieve plate; 10. Protective frame; 11. Rectangular rod; 12. Motor; 13. Disc; 14. Limiting plate; 15. Limiting block; 16. Cylinder; 17. Round rod; 18. Pull rod; 19. Threaded rod; 20. Insert block; 21. Slide groove; 22. Spring; 23. Groove. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0046] In the description of the present application, 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. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0047] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0048] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0049] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0050] Embodiment 1:

[0051] See also Figure 1 - Fig.11 As shown, this embodiment provides a chemical material screening device, comprising:

[0052] A housing 1, a protective frame 10 is slidably installed in the housing 1, a sieve plate 9 is plugged and installed at the bottom of the protective frame 10, a groove 23 is opened in the protective frame 10, a threaded rod 19 is rotatably installed in the groove 23, a rectangular rod 11 is slidably installed in the groove 23 and on the threaded rod 19, a plurality of round rods 17 in contact with the top of the sieve plate 9 are fixedly installed at the bottom of the rectangular rod 11, a motor 12 is fixedly installed on one side of the protective frame 10, an output shaft of the motor 12 passes through one side of the protective frame 10, extends into the groove 23 and is coaxially connected with one end of the threaded rod 19;

[0053] A driving assembly, which is located at the rear side of the housing 1 and is used to drive the protection frame 10 to move back and forth;

[0054] A fixing assembly, which is located in the protection frame 10 and is used to fix the sieve plate 9 in the protection frame 10;

[0055] The baffle 6 is plugged and installed on the left side of the shell 1. A feed frame 2 is fixedly installed on the top of the shell 1. A sealing cover 3 is rotatably installed on the top of the feed frame 2. A collecting box 7 is plugged and installed in the shell 1 and below the screen plate 9.

[0056] When in use, the staff rotates and opens the sealing cover 3 by hand, and then puts the chemical materials into the sieve plate 9 in the shell 1 through the feed frame 2. At this time, the chemical materials will be accumulated in the middle position of the top of the sieve plate 9. Then, the sealing cover 3 is rotated and closed by hand to prevent foreign debris from falling into the shell 1. Then the motor 12 is started, so that the output shaft of the motor 12 drives the threaded rod 19 to rotate forward. Under the action of the thread, the threaded rod 19 will drive the rectangular rod 11 to move in the direction of the chemical materials. Subsequently, the rectangular rod 11 will drive a number of round rods 17 to move in the direction of the chemical materials until the round rods 17 contact the chemical materials. In the process of displacement, the round rods 17 will evacuate the chemical materials accumulated together, and the output shaft of the motor 12 drives the threaded rod 19 to rotate in the opposite direction, so that the round rods 17 can move back and forth, ensuring that the chemical materials on the sieve plate 9 can be evacuated and leveled.

[0057] After the chemical materials are evacuated and leveled, the driving assembly is set to drive the protection frame 10 to move back and forth, and the protection frame 10 then drives the screen plate 9 to move back and forth, so that the chemical materials can be screened. During the screening process, some smaller chemical materials will leak from the screen plate 9 and fall into the collection box 7 below;

[0058] After the screening is completed, the staff can pull out the collection box 7 containing smaller chemical materials from the outer shell 1, pour out the smaller chemical materials in the collection box 7 for collection, and then insert the collection box 7 into the outer shell 1. Then, the staff pulls the baffle 6 upward to pull the baffle 6 out of the outer shell 1, and then, through the set fixing component, the fixing component releases the fixation of the sieve plate 9. At this time, the sieve plate 9 can be pulled to be pulled out of the protective frame 10. Subsequently, the larger chemical materials in the protective frame 10 will fall into the collection box 7, and the staff can clean the sieve plate 9 to prevent some chemical materials from being stuck in the leakage holes on the sieve plate 9. After cleaning, the sieve plate 9 can be inserted into the protective frame 10 again, and then the fixing component is used to fix the sieve plate 9.

[0059] Embodiment 2:

[0060] This embodiment provides a chemical material screening device, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the driving component includes:

[0061] A protective shell 4 is fixedly installed on the rear side of the outer shell 1. A limiting groove 8 is provided on the rear side of the outer shell 1 and located inside the protective shell 4. A limiting block 15 fixed to the protective frame 10 is slidably installed in the limiting groove 8. A limiting plate 14 is fixedly installed on one side of the limiting block 15 and located inside the protective shell 4. A disc 13 is rotatably installed inside the protective shell 4 and located on one side of the limiting plate 14. A cylinder 16 is fixedly installed on one side of the disc 13 close to the limiting plate 14, and one end of the cylinder 16 is located in the limiting plate 14. A motor 5 is fixedly installed on one side of the protective shell 4. The output shaft of the motor 5 passes through one side of the protective shell 4 and is coaxially connected to the disc 13.

[0062] Among them, the motor 5 is started, so that the output shaft of the motor 5 drives the disc 13 to rotate, and then the disc 13 will drive the cylinder 16 to rotate. During the continuous rotation, the cylinder 16 will slide in the limit plate 14 and drive it to reciprocate left and right. Then, the limit plate 14 will drive the limit block 15 to reciprocate left and right. The limit block 15 drives the protective frame 10 to reciprocate left and right. The protective frame 10 drives the screen plate 9 to reciprocate left and right, so that it can screen the chemical materials.

[0063] Embodiment 3:

[0064] The present embodiment provides a chemical material screening device, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the limit block 15 is located between the limit plate 14 and the protective frame 10, the limit plate 14 is located between the limit block 15 and the disc 13, one end of the cylinder 16 is slidably connected to the limit plate 14, and the output shaft of the motor 5 is rotatably connected to the protective shell 4.

[0065] Among them, it is ensured that the limit block 15, the limit plate 14 and the disc 13 can operate normally; it is ensured that the cylinder 16 can slide in the limit plate 14; and it is ensured that the motor 5 can operate normally.

[0066] Embodiment 4:

[0067] This embodiment provides a chemical material screening device, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the fixing component includes:

[0068] The slide groove 21 is opened in the protective frame 10 and is located on one side of the groove 23. An insert block 20 is slidably installed in the slide groove 21. The bottom of the insert block 20 passes through the bottom of the slide groove 21 and extends into the screen plate 9. A pull rod 18 is fixedly installed at the top of the insert block 20 and located in the slide groove 21. The top end of the pull rod 18 passes through the top of the slide groove 21 and extends to the outside. A spring 22 is provided in the slide groove 21 and on the pull rod 18.

[0069] Among them, when disassembling, the staff pulls the baffle 6 upward to pull the baffle 6 out of the outer shell 1, and then pulls the pull rod 18 to make the pull rod 18 drive the plug block 20 to move upward. At this time, the spring 22 will shrink due to the compression until the plug block 20 is pulled out of the sieve plate 9. At this time, the sieve plate 9 can be pulled to pull the sieve plate 9 out of the protective frame 10. Subsequently, the larger chemical materials in the protective frame 10 will fall into the collecting box 7, and the staff can clean the sieve plate 9 to prevent some chemical materials from being stuck in the leakage holes on the sieve plate 9. After cleaning, the sieve plate 9 can be inserted into the protective frame 10 again. Under the action of the rebound force of the spring 22, the spring 22 will push the plug block 20 and insert it into the sieve plate 9 again, thereby fixing the sieve plate 9.

[0070] Embodiment 5:

[0071] The present embodiment provides a chemical material screening device, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the lower end of the plug block 20 is plugged into the screen plate 9, the pull rod 18 is slidably connected to the slide groove 21 and the protective frame 10, and the two ends of the spring 22 are tightly welded to the top of the plug block 20 and the inner wall of the slide groove 21 respectively.

[0072] Among them, it is ensured that the lower end of the insert block 20 can be inserted into the screen plate 9; it is ensured that the pull rod 18 can operate normally; and it is ensured that the structure of the spring 22 is stable.

[0073] Embodiment 6:

[0074] The present embodiment provides a chemical material screening device, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the rectangular rod 11 is threadedly connected to the threaded rod 19, the end of the rectangular rod 11 away from the threaded rod 19 is in contact with the inner wall of the protective frame 10, and the output shaft of the motor 12 is rotatably connected to the protective frame 10.

[0075] Among them, under the action of the thread, the threaded rod 19 will drive the rectangular rod 11 to move when it rotates, ensuring that the several round rods 17 at the bottom of the rectangular rod 11 can evacuate the accumulated chemical materials evenly, and ensuring that the output shaft of the motor 12 can operate normally.

[0076] Embodiment 7:

[0077] This embodiment provides a chemical material screening device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: a plurality of round rods 17 are linearly and evenly spaced, and the diameter of the leakage holes on the sieve plate 9 is 1 cm-2 cm.

[0078] Among them, it is ensured that the round rods 17 can evacuate the chemical materials piled together; and it is ensured that the screen plate 9 can screen out smaller chemicals.

[0079] It is worth noting that the sealing cover 3 is fixed to the feed frame 2 via a latch, and the output shaft of the motor 12 can achieve forward or reverse rotation.

[0080] Working principle: When in use, the staff rotates and opens the sealing cover 3 by hand, and then puts the chemical material into the sieve plate 9 in the shell 1 through the feed frame 2. At this time, the chemical material will accumulate in the middle position of the top of the sieve plate 9. Then, the sealing cover 3 is rotated and closed by hand to prevent foreign debris from falling into the shell 1. Then the motor 12 is started, so that the output shaft of the motor 12 drives the threaded rod 19 to rotate forward. Under the action of the thread, the threaded rod 19 will drive the rectangular rod 11 to move in the direction of the chemical material. Subsequently, the rectangular rod 11 will drive a number of round rods 17 to move in the direction of the chemical material until the round rods 17 contact the chemical material. In the process of displacement, the round rods 17 will evacuate the chemical materials accumulated together, and the output shaft of the motor 12 drives the threaded rod 19 to rotate in the opposite direction, so that the round rods 17 can move back and forth to ensure that the chemical materials on the sieve plate 9 can be evacuated and leveled.

[0081] After the chemical materials are evacuated and leveled, the motor 5 is started, so that the output shaft of the motor 5 drives the disc 13 to rotate, and then the disc 13 will drive the cylinder 16 to rotate. During the continuous rotation, the cylinder 16 will slide in the limit plate 14 and drive it to move back and forth. Then, the limit plate 14 will drive the limit block 15 to move back and forth, and the limit block 15 will drive the protection frame 10 to move back and forth, and the protection frame 10 will drive the sieve plate 9 to move back and forth, so that it can screen the chemical materials. During the screening process, some smaller chemical materials will leak from the sieve plate 9 and fall into the collection box 7 below;

[0082] After the screening is completed, the staff can pull out the collection box 7 containing smaller chemical materials from the outer shell 1, pour out the smaller chemical materials in the collection box 7 for collection, and then insert the collection box 7 into the outer shell 1. Then, the staff can pull the baffle 6 upward to pull the baffle 6 out of the outer shell 1. Then, the staff can pull the pull rod 18 by hand to make the pull rod 18 drive the plug block 20 to move upward. At this time, the spring 22 will shrink under the compression until the plug block 20 is pulled out of the sieve plate 9. At this time, the sieve plate 9 can be pulled to pull the sieve plate 9 out of the protective frame 10. Subsequently, the larger chemical materials in the protective frame 10 will fall into the collection box 7, and the staff can clean the sieve plate 9 to prevent some chemical materials from being stuck in the leakage holes on the sieve plate 9. After cleaning, the sieve plate 9 can be inserted into the protective frame 10 again. Under the action of the rebound force of the spring 22, the spring 22 will push the plug block 20 and insert it into the sieve plate 9 again, thereby fixing the sieve plate 9.

[0083] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A chemical material screening device, characterized in that: include: A housing (1), a protective frame (10) is slidably mounted in the housing (1), a sieve plate (9) is plugged into the bottom of the protective frame (10), a groove (23) is provided in the protective frame (10), a threaded rod (19) is rotatably mounted in the groove (23), a rectangular rod (11) is slidably mounted in the groove (23) and located on the threaded rod (19), a plurality of round rods (17) in contact with the top of the sieve plate (9) are fixedly mounted at the bottom of the rectangular rod (11), a motor (12) is fixedly mounted on one side of the protective frame (10), an output shaft of the motor (12) passes through one side of the protective frame (10), extends into the groove (23) and is coaxially connected to one end of the threaded rod (19); A driving assembly, the driving assembly being located at the rear side of the housing (1) and being used to drive the protective frame (10) to move back and forth; A fixing assembly, the fixing assembly being located in the protection frame (10) and being used to fix the screen plate (9) in the protection frame (10); A baffle (6) is installed by plugging on the left side of the outer shell (1); a feed frame (2) is fixedly installed on the top of the outer shell (1); a sealing cover (3) is rotatably installed on the top of the feed frame (2); and a collection box (7) is installed by plugging in the inner part of the outer shell (1) and below the sieve plate (9).

2. A chemical material screening device according to claim 1, characterized in that: The drive assembly comprises: A protective shell (4), wherein the protective shell (4) is fixedly mounted on the rear side of the outer shell (1), a limiting groove (8) is provided on the rear side of the outer shell (1) and located inside the protective shell (4), a limiting block (15) fixed to the protective frame (10) is slidably mounted inside the limiting groove (8), a limiting plate (14) is fixedly mounted on one side of the limiting block (15) and located inside the protective shell (4), a disc (13) is rotatably mounted inside the protective shell (4) and located on one side of the limiting plate (14), a cylinder (16) is fixedly mounted on one side of the disc (13) close to the limiting plate (14), and one end of the cylinder (16) is located inside the limiting plate (14), a motor (5) is fixedly mounted on one side of the protective shell (4), and an output shaft of the motor (5) passes through one side of the protective shell (4) and is coaxially connected to the disc (13).

3. A chemical material screening device according to claim 2, characterized in that: The limit block (15) is located between the limit plate (14) and the protective frame (10), the limit plate (14) is located between the limit block (15) and the disc (13), one end of the cylinder (16) is slidably connected to the limit plate (14), and the output shaft of the motor (5) is rotationally connected to the protective shell (4).

4. A chemical material screening device according to claim 1, characterized in that: The fixing assembly comprises: A slide groove (21), wherein the slide groove (21) is opened in the protective frame (10) and is located on one side of the groove (23); an insert block (20) is slidably installed in the slide groove (21); the bottom of the insert block (20) passes through the bottom of the slide groove (21) and extends into the screen plate (9); a pull rod (18) is fixedly installed at the top of the insert block (20) and is located in the slide groove (21); the top end of the pull rod (18) passes through the top of the slide groove (21) and extends to the outside; a spring (22) is provided in the slide groove (21) and is located on the pull rod (18).

5. A chemical material screening device according to claim 4, characterized in that: The lower end of the plug block (20) is plugged into the screen plate (9), the pull rod (18) is slidably connected to the slide groove (21) and the protective frame (10), and the two ends of the spring (22) are tightly welded to the top of the plug block (20) and the inner wall of the slide groove (21), respectively.

6. A chemical material screening device according to claim 1, characterized in that: The rectangular rod (11) is threadedly connected to the threaded rod (19); one end of the rectangular rod (11) away from the threaded rod (19) contacts the inner wall of the protection frame (10); and the output shaft of the motor (12) is rotationally connected to the protection frame (10).

7. A chemical material screening device according to claim 1, characterized in that: The plurality of round rods (17) are linearly distributed at equal intervals, and the diameter of the leakage holes on the sieve plate (9) is 1 cm-2 cm.

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