Recycled concrete crushing and screening device

Abstract

The utility model discloses a recycled concrete crushing and screening device, and relates to the technical field of screening, the recycled concrete crushing and screening device comprises a box body, a vibration motor, a screen mesh plate and a support frame, the top of the box body is provided with the vibration motor, the screen mesh plate is arranged in the box body, and the outer side of the box body is connected with the support frame through a vibration spring. According to the recycled concrete crushing and screening device, two sets of clamping blocks are pressed to be close to each other, when the clamping blocks are extruded, springs can be compressed, when a limiting plate moves, two sets of butt joint blocks can be driven to move, and when the two sets of butt joint blocks slide out of the interior of a connecting block, the limiting plate does not limit a plug pin any more; at the moment, the supporting height of the supporting frame can be adjusted, so that the supporting height of the supporting frame can be adjusted according to the depth of the sunken ground, the supporting frame can be stably placed, the screening device can be stably placed on the ground with poor terrain by adjusting the supporting height of the supporting frame, and therefore the placing stability of the screening device is improved.

Description

Technical Field

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

[0002] Recycled concrete refers to new concrete generated by crushing, screening, and cleaning discarded concrete blocks, mixing them with grading in a certain proportion, partially or completely replacing natural materials such as sand and gravel, and then adding cement, water and other materials. After the discarded concrete blocks are crushed, they need to be screened using a screening device. The existing screening devices still have certain defects when used.

[0003] In the prior art, the screening device can screen concrete gravel of different sizes, so as to facilitate subsequent use by personnel. The aperture sizes of each group of screen plates inside the screening device are different. Personnel can replace the screen plates according to actual conditions. During the replacement of the screen plates, multiple groups of bolts need to be loosened and disassembled. This replacement method is time-consuming and labor-intensive, resulting in low replacement efficiency. Utility Model Content

[0004] The utility model aims to provide a recycled concrete crushing and screening device to solve the problem that it is inconvenient to replace the screen plate of the screening device currently on the market as mentioned in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a recycled concrete crushing and screening device, comprising: a box body, a vibration motor, a screen plate and a support frame, the vibration motor is installed on the top of the box body, the screen plate is arranged inside the box body, the outer side of the box body is connected to the support frame through a vibration spring, the screen plate is provided with a through groove running through the inside near the two ends of the box body, a connecting block is welded to the inner wall of the box body near the through groove, a latch is inserted into the inside of the connecting block, a limiting plate is arranged on the top of the latch, a docking block is connected to the bottom of the limiting plate, a spring is connected to the inside of the docking block, one end of the spring is connected to a clamping block, a guide cross plate is welded to the inner wall of the box body, a plug-in structure is formed between the latch and the connecting block through the through groove, and a clamping structure is formed between the clamping block and the connecting block through the spring.

[0006] Preferably, a fixing block is welded to the outer side of the support frame, and a threaded rod is connected to the inside of the fixing block via a bearing.

[0007] Preferably, the top end of the threaded rod is connected to a rotating block, the bottom of the rotating block is connected to a rotating column, and the outer side of the threaded rod is threadedly connected to a moving block.

[0008] Preferably, a sliding block is welded to the outer side of the moving block close to the supporting frame, a supporting base is welded to the end of the sliding block, and the supporting base is movably connected to the bottom of the supporting frame.

[0009] Compared with the prior art, the beneficial effect of the utility model is that the recycled concrete crushing and screening device presses the two groups of blocks close to each other. When the blocks are squeezed, the springs can be compressed. When the limit plate moves, the two groups of docking blocks can be driven to move. When the two groups of docking blocks slide out from the inside of the connecting block, the limit plate no longer limits the pin. At this time, the support height of the support frame can be adjusted, so that the support height of the support frame can be adjusted according to the depth of the ground depression, so that the support frame can be stably placed. By adjusting the support height of the support frame, the screening device can be stably placed on the ground with poor terrain, thereby improving the stability of the placement of the screening device.

[0010] 1. The screening device can screen the crushed concrete stones, but it is troublesome to replace the screen plate. The two groups of blocks are pressed close to each other. When the blocks are squeezed, the springs can be compressed. When the limit plate moves, the two groups of docking blocks can be driven to move. When the two groups of docking blocks slide out from the inside of the connecting block, the limit plate no longer limits the latch. At this time, the latch can be pulled out from the inside of the screen plate and the connecting block. When the screen plate moves, it can slide out of the box along the guide cross plate and the connecting block. At this time, the screen plate can be quickly disassembled, and then the screen plate with a specified aperture size can be installed. When the latch is taken out from the inside of the screen plate, the screen plate can be quickly disassembled and replaced, thereby saving time and improving the efficiency of replacing the screen plate.

[0011] 2. During the use of the screening device, the vibration motor will continue to vibrate, and the screening device is usually used outdoors. Since the outdoor ground is not flat enough, the support frame is not stable enough and is prone to position deviation. When the rotating block rotates, it can drive the rotating column and the threaded rod to rotate together. When the rotating column rotates, it can slide with the fixed block. When the moving block thread slides, it can drive the slider to move. When the support base moves, the support frame can be lifted up. At this time, the support height of the support frame can be adjusted, so that the support height of the support frame can be adjusted according to the depth of the ground depression, so that the support frame can be stably placed. By adjusting the support height of the support frame, the screening device can be stably placed on the ground with poor terrain, thereby improving the stability of the placement of the screening device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the cutaway structure of the main view of the utility model;

[0014] Figure 3 It is a schematic diagram of the top view of the limiting plate of the utility model;

[0015] Figure 4 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0016] Figure 5 This is a schematic diagram of the main cutaway structure of the fixing block of the utility model;

[0017] Figure 6 It is a three-dimensional structural schematic diagram of the rotating block of the utility model.

[0018] In the figure: 1. box body; 2. vibration motor; 3. screen plate; 4. support frame; 5. through slot; 6. connecting block; 7. latch; 8. limit plate; 9. docking block; 10. spring; 11. clamping block; 12. guide cross plate; 13. fixed block; 14. threaded rod; 15. rotating block; 16. rotating column; 17. moving block; 18. slider; 19. supporting base. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 It can be seen that the utility model provides a technical solution: a recycled concrete crushing and screening device, comprising: a box body 1, a vibration motor 2, a screen plate 3 and a support frame 4, the vibration motor 2 is installed on the top of the box body 1, the screen plate 3 is arranged inside the box body 1, the outer side of the box body 1 is connected to the support frame 4 through a vibration spring, the screen plate 3 is penetrated by the inside near the two ends of the box body 1, a connecting block 6 is welded on the inner wall of the box body 1 near the through slot 5, a latch 7 is inserted into the inside of the connecting block 6, a limiting plate 8 is arranged on the top of the latch 7, a docking block 9 is connected to the bottom of the limiting plate 8, a spring 10 is connected to the inside of the docking block 9, one end of the spring 10 is connected to a clamping block 11, a guide cross plate 12 is welded on the inner wall of the box body 1, a plug-in structure is formed between the latch 7 and the connecting block 6 through the through slot 5, and a clamping structure is formed between the clamping block 11 and the connecting block 6 through the spring 10.

[0021] When the two ends of the two groups of blocks 11 are moved to the inside of the docking block 9, the limit plate 8 can be pulled. When the limit plate 8 moves, the two groups of docking blocks 9 can be driven to move. When the two groups of docking blocks 9 slide out from the inside of the connecting block 6, the limit plate 8 no longer limits the latch 7. At this time, the latch 7 can be pulled out from the inside of the screen plate 3 and the connecting block 6. When the latches 7 on the screen plate 3 are all pulled out, the screen plate 3 can be pulled. When the screen plate 3 moves, it can slide out from the inside of the box body 1 along the guide cross plate 12 and the connecting block 6. At this time, the screen plate 3 can be quickly disassembled, and then the screen plate 3 with a specified aperture size can be installed.

[0022] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 It can be seen that when the latch 7 is taken out from the inside of the screen plate 3, the screen plate 3 can be quickly disassembled and replaced, thereby saving time and improving the efficiency of replacing the screen plate 3.

[0023] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 It can be seen that a fixed block 13 is welded to the outer side of the support frame 4, a threaded rod 14 is connected to the inside of the fixed block 13 through a bearing, a rotating block 15 is connected to the top of the threaded rod 14, a rotating column 16 is connected to the bottom of the rotating block 15, a moving block 17 is threadedly connected to the outer side of the threaded rod 14, a slider 18 is welded to the outer side of the moving block 17 near the support frame 4, a support base 19 is welded to the end of the slider 18, and the support base 19 is movably connected to the bottom of the support frame 4, and a circular groove matching the size of the rotating column 16 is provided on the top of the fixed block 13.

[0024] During specific implementation, when the screening device is in use, the vibration motor 2 will continue to vibrate, and the screening device is usually used outdoors. Since the outdoor ground is not flat enough, the support frame 4 is not stable enough and is prone to position deviation. For this reason, the rotating block 15 can be rotated. When the rotating block 15 rotates, it can drive the rotating column 16 and the threaded rod 14 to rotate together. When the rotating column 16 rotates, it can slide with the fixed block 13. When the threaded rod 14 rotates, it can drive the moving block 17 to slide threadedly. When the moving block 17 slides threadedly, it can drive the slider 18 to move. When the slider 18 moves, it can drive the support base 19 to move. When the support base 19 moves, it can lift the support frame 4. At this time, the support height of the support frame 4 can be adjusted, so that the support height of the support frame 4 can be adjusted according to the depth of the ground depression, so that the support frame 4 can be placed stably.

[0025] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 It can be seen that by adjusting the support height of the support frame 4, the screening device can be stably placed on the ground with poor terrain, thereby improving the stability of the placement of the screening device.

[0026] In summary, when the recycled concrete crushing and screening device is used, when the vibration motor 2 is started, the vibration motor 2 can drive the box 1 to vibrate continuously. At this time, the concrete crushed stones will vibrate and move on the screen plate 3, and the concrete crushed stones will be screened by vibration. The screening device is a prior art and will not be described in detail here. When the screen plate 3 moves, it can slide out of the box 1 along the guide cross plate 12 and the connecting block 6. At this time, the screen plate 3 can be quickly disassembled, and then the screen plate 3 with a specified aperture size can be installed. When the latch 7 is taken out from the inside of the screen plate 3, it can be quickly The screen plate 3 can be quickly disassembled and replaced, thereby saving time and improving the efficiency of replacing the screen plate 3. When the support base 19 moves, the support frame 4 can be lifted up. At this time, the support height of the support frame 4 can be adjusted, so that the support height of the support frame 4 can be adjusted according to the depth of the ground depression, so that the support frame 4 can be stably placed. By adjusting the support height of the support frame 4, the screening device can be stably placed on the ground with poor terrain, thereby improving the stability of the placement of the screening device. The contents not described in detail in this description belong to the existing technology known to professional and technical personnel in this field.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A recycled concrete crushing and screening device, comprising: The box body (1), the vibration motor (2), the screen plate (3) and the support frame (4) are characterized in that: A vibration motor (2) is installed on the top of the box (1), a screen plate (3) is arranged inside the box (1), and a support frame (4) is connected to the outside of the box (1) via a vibration spring; The screen plate (3) is provided with through grooves (5) running through the interior near the two ends of the box body (1); a connecting block (6) is welded to the inner wall of the box body (1) near the through groove (5); a latch (7) is inserted into the interior of the connecting block (6); a limit plate (8) is provided on the top of the latch (7); a docking block (9) is connected to the bottom of the limit plate (8); a spring (10) is connected to the interior of the docking block (9); a clamping block (11) is connected to one end of the spring (10); a guide cross plate (12) is welded to the inner wall of the box body (1); a plug-in structure is formed between the latch (7) and the connecting block (6) via the through groove (5); a clamping structure is formed between the clamping block (11) and the connecting block (6) via the spring (10); 2. The recycled concrete crushing and screening device according to claim 1, characterized in that: A fixing block (13) is welded to the outside of the support frame (4), and a threaded rod (14) is connected to the inside of the fixing block (13) via a bearing.

3. The recycled concrete crushing and screening device according to claim 2 is characterized in that: The top end of the threaded rod (14) is connected to a rotating block (15), the bottom of the rotating block (15) is connected to a rotating column (16), and the outer side of the threaded rod (14) is threadedly connected to a moving block (17).

4. The recycled concrete crushing and screening device according to claim 3 is characterized in that: A sliding block (18) is welded to the outer side of the moving block (17) close to the support frame (4), and a supporting base (19) is welded to the end of the sliding block (18), and the supporting base (19) is movably connected to the bottom of the support frame (4).

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