Screening device with screen convenient to disassemble

Abstract

The screening device comprises a screen outer frame, a screen inner frame and the screen, a through opening structure is formed in the middle of the screen outer frame, a limiting groove frame is arranged between the circumferential direction of the through opening structure and the interior of the screen outer frame, and fixing through holes are formed in the four corners of the limiting groove frame. A screen inner frame is arranged on the inner side of the screen outer frame, a screen is arranged on the screen inner frame, an inserting frame is arranged on the peripheral surface of the periphery of the bottom of the screen inner frame, fixing through holes are formed in the four corners of a limiting groove frame in order to enhance fixing of installation of the screen inner frame, and screws are arranged at the positions, corresponding to the fixing through holes, of the four corners of the inserting frame. The screws penetrate through the fixing through holes and are provided with the nut assemblies in a threaded mode, fixing of installation of the strong screen inner frame is achieved, the screen inner frame and the screen are convenient to replace by disassembling the nut assemblies on the periphery, multifunctional use is achieved, and particles with different diameters and sizes are screened.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to a screening device with a screen mesh that is easy to disassemble. Background Art

[0002] Screening device is an operating equipment that uses a screen surface with different screen hole sizes to separate solid mixed materials according to the required particle size. Screening is generally used to screen and separate some materials with coarser particles. It is widely used in various screening fields such as sand and gravel mixing construction, fine screening of edible materials such as medicinal materials, etc.

[0003] Publication (Announcement) No.: CN210701125U, a screening device, including a vibrating seat, on which are mounted four symmetrical hydraulic cylinders, on which are mounted a screening box through a rotating seat, a primary screening net, a secondary screening net and a discharge plate, the ends of which extend out of a bottom plate of the screening box, are sequentially mounted in the screening box from top to bottom, the extension length of the primary screening net is greater than the extension length of the secondary screening net, and the extension length of the secondary screening net is greater than the extension length of the discharge plate;

[0004] In the prior art, the disassembly and maintenance of the screen on the screening device takes a long time, which is not conducive to the replacement of the screen; and it is impossible to replace the adapted screen according to the particle size of the raw material, so that only a single material particle can be screened; for this reason, it is necessary to realize the use of a multifunctional screening device, and it is necessary to propose a screening device that is easy to disassemble the screen. Utility Model Content

[0005] In view of the problems existing in the above-mentioned prior art, the utility model provides a screening device with an easy-to-disassemble screen, so as to solve the above-mentioned technical problems.

[0006] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme: a screening device which is easy to disassemble the screen, comprising a screen outer frame, a screen inner frame, and a screen, the screen outer frame is a through-opening structure in the middle, a limit slot frame is arranged between the circumference of the through-opening structure and the inside of the screen outer frame, fixed through holes are arranged at the four corners of the limit slot frame, the inner side of the screen outer frame is arranged as the screen inner frame, the screen is arranged on the screen inner frame, and the outer peripheral circumferential surface of the bottom of the screen inner frame is arranged as a plug-in The inner circumferential surface of the bottom of the inner frame of the screen is a cardboard frame, the plug-in frame and the cardboard frame are spaced apart to form a plug-in groove, and the inner frame of the screen is sealed and installed in the limiting groove frame in the following manner: the plug-in frame is plugged into the limiting groove frame, the cardboard frame is arranged on one side of the inner wall of the inner frame of the screen and is in contact with the inner wall of the inner frame of the screen, the plug-in groove is plugged between the limiting groove frame and the inner wall of the inner frame of the screen, and screws are arranged at the four corners of the plug-in frame corresponding to the fixed through holes, and the screws are threadedly installed with nut assemblies through the fixed through holes.

[0007] Preferably, the height of the cardboard frame extends beyond the bottom of the screen outer frame, or is flush with the bottom of the screen outer frame.

[0008] Preferably, mounting ear plates are provided on the outer circumference of the outer frame of the screen.

[0009] Preferably, the height dimension of the plug-in frame is not less than the depth dimension of the limiting groove frame.

[0010] Preferably, the nut assembly comprises a nut and a threaded barrel, the outer portion of the threaded barrel is provided with the nut, and the middle portion of the threaded barrel is threadedly mounted with a screw rod.

[0011] In summary, the utility model provides a screening device that is easy to disassemble the screen, through the plug-in frame inserted in the groove opened at the top of the limit slot frame, the card plate frame is inserted into the outside of the limit slot frame and contacts with the inside of the limit slot frame, so as to realize the closing setting of the groove opened at the top of the limit slot frame by the card plate frame, and place the material into the groove; in order to strengthen the fixation of the inner frame of the screen, fixed through holes are set at the four corners of the limit slot frame, and screws are set at the four corners of the plug-in frame corresponding to the fixed through holes, and the screws are threadedly installed with nut assemblies through the fixed through holes to achieve the fixation of the inner frame of the strong screen, and the inner frame and the screen of the screen can be easily replaced by disassembling the nut assemblies around, so as to realize multi-functional use and screening of particles of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure analysis of the screen outer frame and the screen inner frame of the utility model;

[0014] Figure 3 It is a schematic diagram of the plug-in slot structure of the utility model;

[0015] Figure 4 It is a schematic diagram of the structure of the plug-in frame and the card frame of the utility model;

[0016] Figure 5 It is a schematic diagram of the fixed through hole structure of the utility model;

[0017] Figure 6 It is a schematic diagram of the structure of the nut assembly of the utility model;

[0018] Figure 7 It is a schematic diagram of the structural analysis of the nut assembly of the utility model;

[0019] In the figure: screen outer frame 1, screen inner frame 2, through-opening structure 3, limit slot frame 4, fixed through hole 5, screen 6, plug-in frame 7, card plate frame 11, screw 12, nut assembly 13, mounting ear plate 14, nut 15, threaded barrel 16, plug-in slot 17. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] like Figures 1 to 7 As shown:

[0022] The utility model discloses a screening device which is easy to disassemble the screen, comprising a screen outer frame 1, a screen inner frame 2, and a screen 6. The screen outer frame 1 is provided with a through-opening structure 3 in the middle, a limit slot frame 4 is provided between the circumference of the through-opening structure 3 and the inside of the screen outer frame 1, and fixed through holes 5 are provided at the four corners of the limit slot frame 4. The inner side of the screen outer frame 1 is provided with the screen inner frame 2, and the screen 6 is provided on the screen inner frame 2. The outer peripheral circumferential surface of the bottom of the screen inner frame 2 is provided with a plug-in frame 7, and the inner peripheral circumferential surface of the bottom of the screen inner frame 2 is provided with a plug-in frame 7. The surface is a cardboard frame 11, the plug-in frame 7 is spaced apart from the cardboard frame 11 to form a plug-in groove 17, the screen inner frame 2 is sealed and installed in the limiting groove frame 4 in the following manner: the plug-in frame 7 is plugged into the limiting groove frame 4, the cardboard frame 11 is set on one side of the inner wall of the screen inner frame 2 and is in contact with the inner wall of the screen inner frame 2, the plug-in groove is plugged between the limiting groove frame 4 and the inner wall of the screen inner frame 2, and screws 12 are provided at the four corners of the plug-in frame 7 corresponding to the fixed through holes 5, and the screws 12 pass through the fixed through holes 5 and are threadedly installed with nut assemblies 13.

[0023] In view of the technical drawbacks of the existing screening devices, such as long disassembly, maintenance and replacement time, and single use of screening, the present patent adopts: a limit slot frame 4 is arranged on the inner circumference of the screen outer frame 1, and the limit slot frame 4 decreases in height step by step in the direction of sliding toward the material screening, so that one side is higher than the other side, so as to achieve screening; the upper part of the limit slot frame 4 is plugged and installed with the screen inner frame 2, specifically: the bottom outer circumferential surface of the screen inner frame 2 is arranged as a plug-in frame 7, the bottom inner circumferential surface of the screen inner frame 2 is a cardboard frame 11, the plug-in frame 7 is plugged into the groove opened in the top of the limit slot frame 4, and the cardboard frame 11 is plugged into the outside of the limit slot frame 4 , and in contact with the inside of the limit slot frame 4, so as to realize the closing setting of the groove opened on the top of the limit slot frame 4 through the card plate frame 11, and place the material into the groove; in order to strengthen the fixation of the installation of the inner frame 2 of the screen, fixed through holes 5 are set at the four corners of the limit slot frame 4, and screws 12 are set at the four corners of the plug-in frame 7 corresponding to the fixed through holes 5. The screws 12 pass through the fixed through holes 5 and are threadedly installed with nut assemblies 13 to achieve the fixation of the inner frame 2 of the strong screen, and to achieve the convenience of replacing the inner frame 2 of the screen and the screen 6 by disassembling the nut assemblies 13 around, so as to realize multi-functional use and screening of particles of different diameters.

[0024] In at least one embodiment, the height of the cardboard frame 11 extends beyond the bottom of the screen outer frame 1 or is flush with the bottom of the screen outer frame 1. The setting of the cardboard frame 11 prevents particles from entering the limiting groove frame 4 and preventing particles from being screened downward along the cardboard frame 11.

[0025] At least in one embodiment, in order to achieve fixed installation of the screening device and collect smaller particles at the bottom for screening, and allow larger particles to slide out from the top, a mounting ear plate 14 is provided on the outer circumference of the outer frame 1 of the screen, and the mounting ear plate 14 is installed on the collecting device at the bottom to fix the screening device and achieve screening of the material.

[0026] In at least one embodiment, in order to achieve the sealed insertion of the inner frame 2 of the screen into the limiting groove frame 4 and to seal the groove opened on the top of the limiting groove frame 4, the height dimension of the insertion frame 7 is not less than the depth dimension of the limiting groove frame 4.

[0027] In at least one embodiment, the nut assembly 13 includes a nut 15 and a threaded barrel 16. The outside of the threaded barrel 16 is set as the nut 15. The middle part of the threaded barrel 16 is threadedly installed with the screw 12. The nut 15 is threadedly installed to install the threaded barrel 16 and the screw 12, so that the top of the threaded barrel 16 is abutted against the bottom of the outer frame 1 of the screen. The threaded barrel 16 is threadedly installed on the screw 12 to achieve a stable fixed installation of the outer frame 1 and the inner frame 2 of the screen.

[0028] The embodiments of the present invention are only used to illustrate the present invention and do not constitute a limitation on the scope of the claims. Other substantially equivalent alternatives that can be thought of by those skilled in the art are all within the protection scope of the present invention.

Claims

1. A screening device with a screen that is easy to disassemble, characterized in that: The invention comprises a screen outer frame (1), a screen inner frame (2), and a screen (6); the screen outer frame (1) has a through opening structure (3) in the middle, a limit slot frame (4) is arranged between the circumference of the through opening structure (3) and the inside of the screen outer frame (1), fixed through holes (5) are arranged at the four corners of the limit slot frame (4), the inner side of the screen outer frame (1) is arranged as the screen inner frame (2), the screen (6) is arranged on the screen inner frame (2), the outer peripheral circumferential surface of the bottom of the screen inner frame (2) is arranged as a plug-in frame (7), and the inner peripheral circumferential surface of the bottom of the screen inner frame (2) is a cardboard frame (11) The plug-in frame (7) and the card plate frame (11) are arranged at intervals to form a plug-in groove, and the screen inner frame (2) is sealed and installed in the limit groove frame (4) in the following manner: the plug-in frame (7) is plugged into the limit groove frame (4), the card plate frame (11) is arranged on one side of the inner wall of the screen inner frame (2) and is arranged in contact with the inner wall of the screen inner frame (2), the plug-in groove is plugged between the limit groove frame (4) and the inner wall of the screen inner frame (2), and screws (12) are arranged at the four corners of the plug-in frame (7) corresponding to the fixed through holes (5), and the screws (12) pass through the fixed through holes (5) and are threadedly installed with nut assemblies (13).

2. A screening device with easily removable screen according to claim 1, characterized in that: The height of the card plate frame (11) extends beyond the bottom of the screen outer frame (1) or is flush with the bottom of the screen outer frame (1).

3. A screening device with easily removable screen according to claim 1, characterized in that: The outer circumference of the screen outer frame (1) is provided with mounting ear plates (14).

4. A screening device with easily removable screen according to claim 1, characterized in that: The height dimension of the plug-in frame (7) is not less than the depth dimension of the limiting groove frame (4).

5. A screening device with easily removable screen according to claim 1, characterized in that: The nut assembly (13) comprises a nut (15) and a threaded barrel (16). The outside of the threaded barrel (16) is provided with the nut (15), and the middle part of the threaded barrel (16) is threadedly mounted with a screw rod (12).

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