Multi-stage screening device for engineering construction

Abstract

The utility model relates to the field of engineering construction, and discloses a multistage screening device for engineering construction, which comprises a base, the top end of the base is fixedly connected with a supporting plate, the inner wall of the bottom end of the supporting plate is elastically connected with a movable block through a reset spring, and the inner wall of the supporting plate is fixedly connected with a guide pipe. A sand screening barrel is fixedly connected to the right end of the movable block, an L-shaped frame is fixedly connected to the top end of the supporting plate, a connecting plate is fixedly connected to the top end of the base, a driving mechanism is arranged at the top end of the base, a contact plate is fixedly connected to the outer wall of the driving mechanism, and a movable pipe is arranged on the outer wall of the upper end of the driving mechanism through a transmission mechanism. According to the sand screening device, the rotating shaft drives the contact plate to rotate, the sand screening barrel vertically generates vibration to impact sticky sand, and the movable pipe continuously rotates to scatter the sticky sand, so that the whole sand separation effect is further improved, and the situation that the subsequent sticky sand influences the screening effect is reduced.

Description

Technical Field

[0001] The utility model relates to the field of engineering construction, in particular to a multi-stage screening device for engineering construction. Background Technique

[0002] Engineering construction refers to the actual physical construction process in construction, infrastructure or other engineering projects. In construction, some materials need to use a multi-stage screening device to meet specific engineering requirements.

[0003] After retrieval, the Chinese patent publication number: CN215542524U, discloses a drum-type sand screening device for construction engineering, including a base, a fixed bracket, a sand storage box and a material storage tank. A sand screening bracket is arranged on the top of the base. One side inside the sand screening bracket is installed with a sand screening cylinder through a bearing. A connecting bracket is arranged on the other side inside the sand screening bracket. An annular chute is opened on one side of the connecting bracket, and one side of the sand screening cylinder is slidably connected with the annular chute through a slider. One side of the sand screening bracket is connected with a motor through bolts, and the motor is connected with the sand screening cylinder through a driving shaft. The drum-type sand screening device for construction engineering of the utility model has a simple and practical structure, convenient and reliable operation, and is suitable for being widely promoted and used.

[0004] In the prior art, although the above device can reduce the caking of sand by extrusion and improve the subsequent overall screening effect, the extruded sieve will directly enter the sieve tray without sufficient extrusion, and there will still be some caking of sand, which cannot further improve the separation effect. Secondly, since moving wheels are arranged at the bottom of the device, and the contact area between the moving wheels and the ground is small, the moving wheels will be damaged after long-term use and cannot share the load-bearing force of the moving wheels. Therefore, a multi-stage screening device for engineering construction is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a multi-stage screening device for engineering construction, aiming to improve the problem that the separation effect of sand cannot be further improved in the prior art.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A multi-stage screening device for engineering construction, including a base, the top end of the base is fixedly connected with a support plate, the inner wall of the bottom end of the support plate is elastically connected with a movable block through a return spring, the inner wall of the support plate is fixedly connected with a guide tube, the right end of the movable block is fixedly connected with a sand screening bucket, the top end of the support plate is fixedly connected with an L-shaped frame, the top end of the base is fixedly connected with a connecting plate, a driving mechanism is arranged at the top end of the base, a contact plate is fixedly connected to the outer wall of the driving mechanism, a movable tube is arranged on the upper outer wall of the driving mechanism through a transmission mechanism, a fixed block is fixedly connected to the outer wall of the sand screening bucket, and a rotating barrel is arranged at the top end of the base.

[0007] As a further description of the above technical solution:

[0008] The bottom end of the base is fixedly connected with a threaded sleeve, the inner wall of the threaded sleeve is threadedly connected with a threaded rod, the bottom end of the threaded rod is rotatably connected with a bottom plate, and the top end of the bottom plate is fixedly connected with a positioning tube.

[0009] As a further description of the above technical solution:

[0010] The positioning tube is slidably connected to the inner wall of the base.

[0011] As a further description of the above technical solution:

[0012] The inner wall of the bottom end of the support plate is fixedly connected with one end of the return spring, the other end of the return spring is fixedly connected with the top end of the movable block, and the movable block is slidably connected to the inner wall of the support plate.

[0013] As a further description of the above technical solution:

[0014] The movable block is slidably connected to the outer wall of the guide tube, and the movable tube penetrates and is rotatably connected to the inner wall of the L-shaped frame.

[0015] As a further description of the above technical solution:

[0016] The sand screening bucket is slidably connected to the inner wall of the movable tube, and the contact plate contacts the bottom end of the fixed block.

[0017] As a further description of the above technical solution:

[0018] The driving mechanism includes a motor, the output end of the motor is fixedly connected with a rotating shaft, the motor is arranged at the top end of the base, the motor is fixed to the inner wall of the connecting plate, the upper outer wall of the rotating shaft is fixedly connected with one end of the transmission mechanism, and the other end of the transmission mechanism is fixedly connected to the outer wall of the movable tube.

[0019] As a further description of the above technical solution:

[0020] The rotating shaft penetrates and is rotatably connected to the inner wall of the connecting plate.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by rotating the contact plate with the rotating shaft, the sand screening bucket vertically vibrates to impact the sticky sand, and the movable pipe continuously rotates to disperse the sticky sand, further improving the overall separation effect of the sand and reducing the influence of subsequent sticky sand on the screening effect.

[0023] 2. In the utility model, by rotating the threaded rod, the bottom plate contacts the ground to share the gravity borne by the moving wheels, reducing the damage of the moving wheels during long-term use and improving the stability of the device movement to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is an overall three-dimensional schematic diagram of the base of a multi-stage screening device for engineering construction proposed by the utility model;

[0025] Figure 2 is a sectional view schematic diagram of the support plate, connecting plate and sand screening bucket of a multi-stage screening device for engineering construction proposed by the utility model;

[0026] Figure 3 is a schematic diagram showing the bottom end of the base of a multi-stage screening device for engineering construction proposed by the utility model.

[0027] Legend:

[0028] 1. Base; 2. Support plate; 3. Return spring; 4. Movable block; 5. Guide pipe; 6. Sand screening bucket; 7. L-shaped frame; 8. Connecting plate; 9. Motor; 10. Rotating shaft; 11. Contact plate; 12. Transmission mechanism; 13. Movable pipe; 14. Fixed block; 15. Rotating barrel; 16. Threaded sleeve; 17. Threaded rod; 18. Bottom plate; 19. Positioning pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Refer to Figures 1 - 2, An embodiment provided by the present utility model: A multi-stage screening device for engineering construction, including a base 1. The top end of the base 1 is fixedly connected with a support plate 2. The support plate 2 mainly functions to connect and support the L-shaped frame 7, the movable block 4, and the sand screening bucket 6. The inner wall of the bottom end of the support plate 2 is elastically connected with a movable block 4 through a return spring 3. The inner wall of the support plate 2 is fixedly connected with a guide tube 5. The guide tube 5 allows the movable block 4 to move vertically without deviation. The right end of the movable block 4 is fixedly connected with a sand screening bucket 6. The bottom end of the sand screening bucket 6 is provided with a filter screen, which can initially screen the sand through the filter screen to prevent too large impurities from mixing into the sand. The top end of the support plate 2 is fixedly connected with an L-shaped frame 7. The L-shaped frame 7 mainly functions to support and connect the movable tube 13. The top end of the base 1 is fixedly connected with a connecting plate 8. A driving mechanism is arranged at the top end of the base 1. The outer wall of the driving mechanism is fixedly connected with a contact plate 11. The contact plate 11 is at the connecting plate 8. A notch is opened on the connecting plate 8, which can satisfy the rotation of the contact plate 11 without being interfered by the movement track. The upper outer wall of the driving mechanism is provided with a movable tube 13 through a transmission mechanism 12. The transmission mechanism 12 includes two groups of belt pulleys and a belt. By using the belt to drive the left-end belt pulley to rotate through the right-end belt pulley, the movable tube 13 is rotated. The outer wall of the sand screening bucket 6 is fixedly connected with a fixed block 14. The bottom end of the fixed block 14 is beveled, and the bevel is matched with the rotation track of the contact plate 11. When the bevel is squeezed, the fixed block 14 will drive the sand screening bucket 6 to move vertically. A rotating barrel 15 is arranged at the top end of the base 1. The rotating barrel 15 is controlled by a motor 9 to rotate to complete the subsequent sand screening process, and this is prior art and will not be elaborated here.

[0031] Refer to Figure 1 And Figure 3 , The bottom end of the base 1 is fixedly connected with a threaded sleeve 16. The inner wall of the threaded sleeve 16 is threadedly connected with a threaded rod 17. The bottom end of the threaded rod 17 is rotatably connected with a bottom plate 18. The bottom plate 18 contacts the ground to bear the gravity of the entire base 1 during use. The top end of the bottom plate 18 is fixedly connected with a positioning tube 19. The positioning tube 19 allows the bottom plate 18 to move vertically without deviation of the movement track. The positioning tube 19 is slidably connected to the inner wall of the base 1.

[0032] Refer to Figures 1 - 2, the inner wall of the bottom end of the support plate 2 is fixedly connected to one end of the return spring 3. When the movable block 4 moves upward, the return spring 3 will be compressed. During reset, a part of the force of the return spring 3 will bring the movable block 4 back to its original position. The other end of the return spring 3 is fixedly connected to the top end of the movable block 4. The movable block 4 is slidably connected to the inner wall of the support plate 2. A notch corresponding to the movable block 4 is provided on the support plate 2, which enables the movable block 4 to slide along the support plate 2. The movable block 4 is slidably connected to the outer wall of the guide tube 5. The movable tube 13 passes through and is rotatably connected to the inner wall of the L-shaped frame 7. There are blades on the outer wall of the movable tube 13, and the relatively humid sand can be dispersed through the blades. The sand screening barrel 6 is slidably connected to the inner wall of the movable tube 13. The contact plate 11 contacts the bottom end of the fixed block 14. The driving mechanism includes a motor 9. The output end of the motor 9 is fixedly connected to a rotating shaft 10. The motor 9 is arranged at the top end of the base 1. The motor 9 is fixedly connected to the inner wall of the connecting plate 8. There is a notch on the connecting plate 8, which can place the motor 9 in the notch for fixation. The outer wall of the upper end of the rotating shaft 10 is fixedly connected to one end of the transmission mechanism 12. One group of pulleys is fixedly connected to the outer wall of the rotating shaft 10, and the other group of pulleys is fixedly connected to the outer wall of the movable tube 13. The other end of the transmission mechanism 12 is fixedly connected to the outer wall of the movable tube 13. The rotating shaft 10 passes through and is rotatably connected to the inner wall of the connecting plate 8.

[0033] Working principle: When initially screening the sand, only pour part of the sand into the sand screening barrel 6, and then start the motor 9 to drive the rotating shaft 10, the contact plate 11 and one end of the transmission mechanism 12 to rotate, so that the other end of the transmission mechanism 12 drives the movable tube 13 to rotate. When the contact plate 11 contacts the inclined surface at the bottom end of the fixed block 14, the inclined surface of the fixed block 14 will be subjected to a force that drives the sand screening barrel 6 and the movable block 4 to move upward and compress the return spring 3. After the contact plate 11 stops contacting the fixed block 14, due to the gravity of the sand adhered to the inner wall of the sand screening barrel 6 and the reverse elastic force of the return spring 3, the movable block 4 and the sand screening barrel 6 will be reset downward, causing the adhered sand to bounce off the filter screen of the sand screening barrel 6 due to the reaction force, so that the sand can be separated without affecting subsequent screening. At the same time, the rotation of the movable tube 13 enables the blades to disperse the bounced sand, ensuring the uniformity of the sand for subsequent screening. Repeat the above steps to reduce the situation where the sand sticks together due to humidity.

[0034] When the base 1 is in use, the threaded rod 17 can be rotated to drive the bottom plate 18 and the positioning tube 19 to move downward, so that the bottom plate 18 contacts the ground to share the weight borne by the moving wheels and reduce the damage to the moving wheels during use. When the entire base 1 needs to be moved, just reverse the threaded rod 17 to drive the bottom plate 18 and the positioning tube 19 to move upward so that the bottom plate 18 does not contact the ground.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A multi-stage screening device for engineering construction, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a support plate (2), the inner wall of the bottom end of the support plate (2) is elastically connected to a movable block (4) via a return spring (3), the inner wall of the support plate (2) is fixedly connected to a guide tube (5), the right end of the movable block (4) is fixedly connected to a sand screening bucket (6), the top of the support plate (2) is fixedly connected to an L frame (7), the top of the base (1) is fixedly connected to a connecting plate (8), the top of the base (1) is provided with a driving mechanism, the outer wall of the driving mechanism is fixedly connected to a contact plate (11), the upper outer wall of the driving mechanism is provided with a movable tube (13) via a transmission mechanism (12), the outer wall of the sand screening bucket (6) is fixedly connected to a fixed block (14), and the top of the base (1) is provided with a rotating bucket (15).

2. A multi-stage screening device for engineering construction according to claim 1, characterized in that: The bottom end of the base (1) is fixedly connected to a threaded sleeve (16), the inner wall of the threaded sleeve (16) is threadedly connected to a threaded rod (17), the bottom end of the threaded rod (17) is rotatably connected to a bottom plate (18), and the top end of the bottom plate (18) is fixedly connected to a positioning tube (19).

3. A multi-stage screening device for engineering construction according to claim 2, characterized in that: The positioning tube (19) is slidably connected to the inner wall of the base (1).

4. The multi-stage screening device for engineering construction according to claim 1, characterized in that: The inner wall at the bottom end of the support plate (2) is fixedly connected to one end of a return spring (3), and the other end of the return spring (3) is fixedly connected to the top end of a movable block (4), and the movable block (4) is slidably connected to the inner wall of the support plate (2).

5. The multi-stage screening device for engineering construction according to claim 1, characterized in that: The movable block (4) is slidably connected to the outer wall of the guide tube (5), and the movable tube (13) penetrates and is rotatably connected to the inner wall of the L frame (7).

6. The multi-stage screening device for engineering construction according to claim 1, characterized in that: The sand screening bucket (6) is slidably connected to the inner wall of the movable tube (13), and the contact plate (11) is in contact with the bottom end of the fixed block (14).

7. The multi-stage screening device for engineering construction according to claim 1, characterized in that: The driving mechanism comprises a motor (9), the output end of the motor (9) is fixedly connected to a rotating shaft (10), the motor (9) is arranged at the top end of the base (1), the motor (9) is fixed to the inner wall of the connecting plate (8), the upper outer wall of the rotating shaft (10) is fixedly connected to one end of a transmission mechanism (12), and the other end of the transmission mechanism (12) is fixedly connected to the outer wall of the movable tube (13).

8. The multi-stage screening device for engineering construction according to claim 7, characterized in that: The rotating shaft (10) penetrates through and is rotatably connected to the inner wall of the connecting plate (8).

Images