Dustproof sand screening device

Abstract

The utility model belongs to the technical field of sand screening devices, and particularly relates to a dustproof sand screening device which comprises a frame, a material channel is fixedly installed in the frame, a screening mechanism is arranged in the frame, a material guide groove is fixedly installed at the left end of the frame, and four evenly-distributed supporting legs are welded to the corners of the lower end of the frame. A conical barrel is connected into the upper end of the frame through threads, and a dust removal mechanism is arranged on the outer side of the conical barrel. Flying dust enters the outer barrel through suction of the air pump and acts on the baffle through the spring, so that the conical barrel is blocked by the sealing plate when the conical barrel is idle, dust generated by filtering is prevented from falling into the frame to generate flying dust again, the dust removal effect of the device is good, the outer barrel and the conical barrel are detachable, and the dust removal effect is good. And dust collected between the outer barrel and the conical barrel can be conveniently poured out.

Description

Technical Field

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

[0002] The utility model patent with announcement number CN220295197U discloses a sand screening device, the technical solution of which is as follows: it includes a screening box, a universal wheel is fixedly installed on the bottom surface of the screening box, a push rod is fixedly installed on one side of the screening box, two screening plates are arranged inside the screening box, a screening port is opened on the top surface of the screening plate, and a screening net is arranged inside the screening port; a discharge assembly is arranged on one side of the screening box, and is used to unload the screened waste material, and by setting a rotating motor, the impurities such as stones in the sand raw material are screened out, and the impurities such as stones slide to the middle position due to the tilted state of the screening plate. When there are too many impurities such as stones, the staff can start the rotating motor to drive the screening plate to rotate, so that the screening plate rotates counterclockwise, so that the accumulated stone impurities slide out from the discharge port, so as to facilitate the staff to clean up the screened stone impurities and improve the screening efficiency of the sand raw material. However, when the device is in use, the device cannot perform vibration screening, and the sand screening efficiency is low. At the same time, dust will be generated during the sand screening process. Therefore, it is necessary to improve. Utility Model Content

[0003] The utility model aims to provide a dustproof sand screening device, which solves the problem that the device cannot perform vibration screening, the sand screening efficiency is low, and at the same time, dust is generated during the sand screening process.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust-proof sand screening device, comprising a frame, a material channel is fixedly installed inside the frame, a screening mechanism is arranged inside the frame, a material guide trough is fixedly installed on the left end of the frame, four evenly distributed supporting legs are welded to the lower corners of the frame, a conical cylinder is threadedly connected to the inside of the upper end of the frame, and a dust removal mechanism is arranged on the outside of the conical cylinder.

[0005] Preferably, the screening mechanism comprises a mounting frame, the mounting frame is slidably connected to the frame, a filter plate is fixedly installed inside the mounting frame, a motor is fixedly installed in the middle of the right end of the frame, the output end of the motor passes through the frame and is rotatably connected to the frame, an eccentric wheel is fixedly installed at the left end of the output end, the eccentric wheel is in contact with the filter plate, and an elastic sheet is bonded to the right side of the upper end of the mounting frame. The eccentric wheel is driven to rotate by the motor, so that the eccentric wheel changes the position of the reducer and reduces the head, and hits the filter screen, so that the filter screen angle changes and vibrates, so that the filter screen has a higher filtering efficiency and the particles on the upper end of the filter screen are easier to discharge.

[0006] Preferably, the elastic sheet is made of rubber, and the elastic sheet is bonded to the frame. By providing the elastic sheet, leakage of material from the gap between the frame and the mounting frame is prevented.

[0007] Preferably, the dust removal mechanism includes an outer cylinder, the outer cylinder and the conical cylinder are connected by threads, the outer cylinder is in contact with the frame, an air pump is fixedly installed in the middle of the upper end of the outer cylinder, the suction end of the air pump is fixedly connected to the outer cylinder, a filter screen is fixedly sleeved inside the outer cylinder, a connecting rod is welded inside the conical cylinder, a support ring is welded at the end of the connecting rod, a sliding rod is slidably connected inside the support ring, a sealing plate is fixedly connected to the upper end of the sliding rod, a baffle is welded at the lower end of the sliding rod, and a spring is arranged on the outer side of the sliding rod. The air pump sucks so that the dust enters the outer cylinder, and the spring acts on the baffle so that the sealing plate blocks the conical cylinder when it is idle, so as to prevent the dust generated by the filtration from falling into the frame and generating dust again, thereby making the device have a good dust removal effect, and the outer cylinder and the conical cylinder are detachable, so that the dust collected between the outer cylinder and the conical cylinder can be easily poured out.

[0008] Preferably, the sealing plate is made of rubber material, and the sealing plate is in contact with the conical tube. The sealing plate is provided to prevent dust from returning to the frame.

[0009] Preferably, one end of the spring is fixedly connected to the baffle, and the other end of the spring is fixedly connected to the support ring. By providing the spring, the baffle is easy to reset.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The utility model drives the eccentric wheel to rotate through a motor, so that the eccentric wheel changes the position of the reducer and reducer heads, and impacts the filter screen, so that the filter screen angle changes and vibrates, so that the filter screen has a higher filtering efficiency and the particles on the upper end of the filter screen are easier to discharge.

[0012] 2. The utility model uses an air pump to suck dust into the outer cylinder, and acts on the baffle through a spring, so that the sealing plate blocks the conical cylinder when idle, preventing the dust generated by filtration from falling into the frame and generating dust again, thereby making the device have a good dust removal effect, and the outer cylinder and the conical cylinder are detachable, making it easy to pour out the dust collected between the outer cylinder and the conical cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 Frame cross-section view;

[0015] Figure 3 For this utility model Figure 1 A cross-sectional view of an outer cylinder;

[0016] Figure 4 For this utility model Figure 2 Schematic diagram of the eccentric wheel.

[0017] In the figure: 1. frame; 2. material channel; 3. screening mechanism; 4. material guide trough; 5. support foot; 6. conical cylinder; 7. dust removal mechanism; 31. mounting frame; 32. filter plate; 33. motor; 34. eccentric wheel; 35. elastic sheet; 71. outer cylinder; 72. air pump; 73. filter screen; 74. connecting rod; 75. support ring; 76. sliding rod; 77. sealing plate; 78. baffle; 79. spring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-Figure 3 A dust-proof sand screening device comprises a frame 1, a material channel 2 is fixedly installed inside the frame 1, a screening mechanism 3 is arranged inside the frame 1, a material guide trough 4 is fixedly installed at the left end of the frame 1, four evenly distributed supporting legs 5 are welded at the lower corner of the frame 1, a conical cylinder 6 is threadedly connected inside the upper end of the frame 1, and a dust removal mechanism 7 is arranged on the outer side of the conical cylinder 6.

[0020] See also Figure 1 , Figure 2 , Figure 4 The screening mechanism 3 includes a mounting frame 31, which is slidably connected to the frame 1. A filter plate 32 is fixedly installed inside the mounting frame 31. A motor 33 is fixedly installed in the middle of the right end of the frame 1. The output end of the motor 33 passes through the frame 1 and is rotatably connected to the frame 1. An eccentric wheel 34 is fixedly installed on the left end of the output end. The eccentric wheel 34 is in contact with the filter plate 32. The elastic sheet 35 is made of rubber. The elastic sheet 35 is bonded to the frame 1. By setting the elastic sheet 35, leakage of material is prevented from occurring in the gap between the frame 1 and the mounting frame 31. An elastic sheet 35 is bonded to the right side of the upper end of the mounting frame 31. The eccentric wheel 34 is driven to rotate by the motor 33, so that the eccentric wheel 34 changes the position of the reducer and reducer heads and hits the filter screen 73, so that the angle of the filter screen 73 changes and vibrates, so that the filtering efficiency of the filter screen 73 is higher and the particles at the upper end of the filter screen 73 are easier to be discharged.

[0021] See also Figure 1 , Figure 3The dust removal mechanism 7 includes an outer cylinder 71, which is connected to the conical cylinder 6 by threads, and the outer cylinder 71 is in contact with the frame 1. An air pump 72 is fixedly installed in the middle of the upper end of the outer cylinder 71, and the suction end of the air pump 72 is fixedly connected to the outer cylinder 71. A filter screen 73 is fixedly sleeved inside the outer cylinder 71, and a connecting rod 74 is welded inside the conical cylinder 6. A supporting ring 75 is welded at the end of the connecting rod 74. A sliding rod 76 is slidably connected inside the supporting ring 75. A sealing plate 77 is fixedly connected to the upper end of the sliding rod 76. The sealing plate 77 is made of rubber. The sealing plate 77 is in contact with the conical cylinder 6. The sealing plate 77 is provided to prevent dust from returning to the frame 1. The sliding rod 76 A baffle 78 is welded to the lower end, and a spring 79 is provided on the outer side of the slide rod 76. One end of the spring 79 is fixedly connected to the baffle 78, and the other end of the spring 79 is fixedly connected to the support ring 75. By providing the spring 79, the baffle 78 is easy to reset, and the air pump 72 is used to suck the dust into the outer cylinder 71, and the spring 79 acts on the baffle 78, so that the sealing plate 77 blocks the conical cylinder 6 when it is idle, so as to prevent the dust generated by the filtration from falling into the frame 1 and generating dust again, thereby making the device have a good dust removal effect, and the outer cylinder 71 and the conical cylinder 6 are detachable, so that the dust collected between the outer cylinder 71 and the conical cylinder 6 can be easily poured out.

[0022] The specific implementation process of the utility model is as follows: when in use, the motor 33 is started, and the motor 33 drives the eccentric wheel 34 to rotate, thereby changing the position of the large and small heads of the eccentric wheel 34, thereby causing the eccentric wheel 34 to impact the filter screen 73, thereby causing the filter screen 73 to change its angle and vibrate, thereby making the filter screen 73 more efficient, and the particles at the upper end of the filter screen 73 are more easily discharged into the guide trough 4 for discharge, and then the air pump 72 is started, and the air pump 72 starts to suck air, thereby causing the sealing plate 77 to move up under the action of negative pressure and separate from the conical cylinder 6, so that the dust in the frame 1 is discharged. The dust is sucked into the outer cylinder 71 and filtered by the filter screen 73. When the device completes the suction, the air pump 72 is turned off, and the spring 79 is reset so that the sealing plate 77 is pressed against the conical cylinder 6. The dust is sucked by the air pump 72, so that the dust enters the outer cylinder 71, and the spring 79 acts on the baffle 78, so that the sealing plate 77 blocks the conical cylinder 6 when idle, so as to prevent the dust generated by the filtration from falling into the frame 1 and generating dust again, thereby making the device have a good dust removal effect, and the outer cylinder 71 and the conical cylinder 6 are detachable, so that the dust collected between the outer cylinder 71 and the conical cylinder 6 can be easily poured out.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dustproof sand screening device, comprising a frame (1), characterized in that: A material channel (2) is fixedly installed inside the frame (1), a screening mechanism (3) is arranged inside the frame (1), a material guide trough (4) is fixedly installed at the left end of the frame (1), four evenly distributed supporting legs (5) are welded to the corners of the lower end of the frame (1), a conical cylinder (6) is connected to the inside of the upper end of the frame (1) by means of threads, and a dust removal mechanism (7) is arranged on the outside of the conical cylinder (6).

2. A dust-proof sand screening device according to claim 1, characterized in that: The screening mechanism (3) comprises a mounting frame (31), the mounting frame (31) being slidably connected to the frame (1), a filter plate (32) being fixedly mounted inside the mounting frame (31), a motor (33) being fixedly mounted in the middle of the right end of the frame (1), an output end of the motor (33) passing through the frame (1) and being rotatably connected to the frame (1), an eccentric wheel (34) being fixedly mounted at the left end of the output end, the eccentric wheel (34) being in contact with the filter plate (32), and an elastic sheet (35) being bonded to the right side of the upper end of the mounting frame (31).

3. A dust-proof sand screening device according to claim 2, characterized in that: The elastic sheet (35) is made of rubber material, and the elastic sheet (35) and the frame (1) are bonded.

4. The dust-proof sand screening device according to claim 1, characterized in that: The dust removal mechanism (7) comprises an outer cylinder (71), the outer cylinder (71) and the conical cylinder (6) are connected by threads, the outer cylinder (71) and the frame (1) are in contact, an air pump (72) is fixedly installed in the middle of the upper end of the outer cylinder (71), the suction end of the air pump (72) is fixedly connected to the outer cylinder (71), a filter screen (73) is fixedly sleeved inside the outer cylinder (71), a connecting rod (74) is welded inside the conical cylinder (6), a support ring (75) is welded at the end of the connecting rod (74), a sliding rod (76) is slidably connected inside the support ring (75), a sealing plate (77) is fixedly connected to the upper end of the sliding rod (76), a baffle (78) is welded to the lower end of the sliding rod (76), and a spring (79) is arranged on the outer side of the sliding rod (76).

5. The dust-proof sand screening device according to claim 4, characterized in that: The sealing plate (77) is made of rubber material, and the sealing plate (77) is in contact with the conical cylinder (6).

6. The dust-proof sand screening device according to claim 4, characterized in that: One end of the spring (79) is fixedly connected to the baffle (78), and the other end of the spring (79) is fixedly connected to the support ring (75).

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