Gravel screening device for building construction

Abstract

The invention relates to the technical field of building construction, in particular to a gravel screening device for building construction, which is characterized in that a placing plate is arranged on the end face of a screening machine body, the output end of a water suction pump is connected with an atomizing nozzle through a water conveying pipe, a lifting rod is arranged in a storage plate, a supporting plate is arranged at one end of the lifting rod, and a storage groove is formed in the surface of the storage plate; a positioning clamping plate is arranged in the storage groove; the device has the beneficial effects that firstly, the positioning clamping plate can be rotated to enable the positioning plate to lose the limiting effect on the supporting plate, then the lifting rod can be pushed to move upwards, after the supporting plate is moved to a proper height, the positioning clamping plate is clamped into the positioning clamping groove to fix the lifting rod, and therefore the atomization nozzle can be opened to work; and then the gravel is conveyed to the screening machine body through the discharging bin to be screened, dust generated during gravel screening can be subjected to dust falling treatment through water mist sprayed out of the atomization spray head, and therefore the situation that the dust in the air is inhaled into the body of a worker is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and specifically relates to a sand and gravel screening device for building construction. Background Art

[0002] Due to its good hardness and stable chemical properties, sand and gravel are often used in building construction. When using sand and gravel, it is necessary to screen the sand and gravel according to the diameter of the sand and gravel, so as to facilitate the use of the sand and gravel. When screening the sand and gravel, a sand and gravel screening device is required.

[0003] However, when a general screening device is in use, since there is a large amount of dust in the sand and gravel, it is inevitable that dust will be scattered into the air when screening the sand and gravel. Most general screening devices are open and do not perform dust removal, so dust will be scattered into the air. When the dust is inhaled into the body by the staff, it will cause harm to the staff's body, and thus it is not conducive to the use of the device.

[0004] Therefore, the present invention proposes a sand and gravel screening device for building construction to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a sand and gravel screening device for building construction to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A sand and gravel screening device for building construction, the sand and gravel screening device for building construction includes: a screening machine body, a placement plate is arranged on the end face of the screening machine body, a positioning frame and a water pump are arranged on the surface of the placement plate, a feeding bin is arranged at one end of the positioning frame, and the output end of the water pump is connected to an atomizing nozzle by a water delivery pipe;

[0007] A storage plate, a lifting rod is arranged inside the storage plate, a support plate is arranged at one end of the lifting rod, a positioning card slot is opened on the surface of the lifting rod, a storage slot is opened on the surface of the storage plate, and a positioning card plate is arranged inside the storage slot.

[0008] Preferably, the placement plate is fixedly connected to the end face of the screening machine body, the positioning frame is fixedly connected to the surface of the placement plate, a guiding plate is arranged on the inner side surface of the positioning frame, and the sand and gravel can be sent into the screening machine body through the guiding plate for screening.

[0009] Preferably, a water storage tank is arranged on the surface of the placement plate, the water storage tank is connected to the input end of the water pump by a water pipe, the water pump is fixedly connected to the surface of the placement plate, an installation plate is arranged on the side of the atomizing nozzle, and the installation plate is integrally in the shape of a "C"-shaped plate structure.

[0010] Preferably, the storage plate is fixedly connected to the surface of the screening machine body by a limit bolt. The storage groove is integrally in a "T"-shaped plate structure. A first bearing is arranged at the bottom of the storage plate, and the lifting rod passes through the inner ring surface of the first bearing. The lifting rod can move up and down along the storage plate.

[0011] Preferably, threads are provided on the surface of the lifting rod, and a moving nut is screwed on the threads. A return spring is arranged on the surface of the moving nut. One end of the return spring is fixedly connected to the surface of the moving nut, and the other end of the return spring is fixedly connected to the surface of the first bearing.

[0012] Preferably, multiple groups of positioning card slots are provided. The multiple groups of positioning card slots are linearly arranged at equal intervals on the surface of the lifting rod. The support plate is fixedly connected to the end face of the lifting rod. There are two groups of lifting rods, and the two groups of lifting rods are symmetrically distributed about the center line of the long side of the side face of the support plate.

[0013] Preferably, one end of the support plate is connected to an auxiliary plate by a hinge. The auxiliary plate is in a square plate structure. The auxiliary plate can be inserted into the mounting plate, and the auxiliary plate can be fixedly connected to the mounting plate by a positioning bolt.

[0014] Preferably, a vertical plate is arranged at the bottom of the support plate. A moving bolt is screwed in the vertical plate. A push plate is arranged at the bottom of the auxiliary plate. The push plate is in a square plate structure. The moving bolt can push the push plate. The vertical plate is in a square plate structure.

[0015] Preferably, the support plate, the auxiliary plate and the atomizing nozzle can fill the storage groove. Thread grooves are provided on the surface of the storage plate, and fixing bolts can be screwed in the thread grooves. The end face of the fixing bolt can limit the upper part of the positioning card plate.

[0016] Preferably, damping bearings are arranged on the inner side surface of the storage groove. A rotating rod is fixedly connected to the inner ring surface of the damping bearing. The side surface of the positioning card plate is fixedly connected to the end face of the rotating rod. There are two groups of damping bearings, and the two groups of damping bearings are symmetrically distributed about the positioning card plate. The positioning card plate is integrally in an "L"-shaped plate structure. One end of the positioning card plate can be inserted into the positioning card slot. The upper and lower widths of the positioning card slot are wide enough, and one end of the positioning card plate is not affected when inserted into or withdrawn from the positioning card slot.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The present invention proposes a sand and gravel screening device for construction. When in use, the positioning card plate can be rotated first to make the positioning card plate lose its limiting effect on the supporting plate, and then the lifting rod can be pushed to move upward. After the supporting plate is moved to a suitable height, the lifting rod is fixed by inserting the positioning card plate into the positioning card slot, so that the atomizing nozzle can be opened to work, and then the sand and gravel are sent to the screening machine body through the lower hopper for sand and gravel screening. The dust generated during the sand and gravel screening can be treated by the water mist sprayed by the atomizing nozzle, thereby avoiding the problem that the dust in the air is inhaled into the body of the staff and causes harm to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the device of the present invention;

[0020] Figure 2 It is an end view of the device of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the device of the present invention when it is tilted;

[0022] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0023] Figure 5 It is a side view of the device of the present invention;

[0024] Figure 6 for Figure 5 The enlarged structural diagram at B in the middle;

[0025] Figure 7 This is a schematic diagram of the structure of the lifting rod and the support plate of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the storage board of the present invention.

[0027] In the figure: 1. screening machine body; 2. placement plate; 3. positioning frame; 4. unloading bin; 5. water pump; 6. water pipe; 7. atomizing nozzle; 8. storage plate; 9. lifting rod; 10. support plate; 11. positioning slot; 12. storage slot; 13. positioning card plate; 14. guide plate; 15. water storage tank; 16. mounting plate; 17. limit bolt; 18. first bearing; 19. moving nut; 20. reset spring; 21. hinge; 22. auxiliary plate; 23. positioning bolt; 24. vertical plate; 25. moving bolt; 26. push plate; 27. threaded groove; 28. fixing bolt; 29. ​​damping bearing; 30. rotating rod. DETAILED DESCRIPTION

[0028] In order to clearly and completely describe the objectives, technical solutions of the present invention and make the advantages more clearly understood, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0029] Embodiment 1

[0030] Please refer to Figures 1 to 8 , the present invention provides a technical solution: a sand and gravel screening device for building construction. The sand and gravel screening device for building construction includes: a screening machine body 1, a placement plate 2 is arranged on the end face of the screening machine body 1, a positioning frame 3 and a water pump 5 are arranged on the surface of the placement plate 2, a feeding bin 4 is arranged at one end of the positioning frame 3, and the output end of the water pump 5 is connected to a spray head 7 through a water pipe 6;

[0031] A storage plate 8, a lifting rod 9 is arranged inside the storage plate 8, a support plate 10 is arranged at one end of the lifting rod 9, a positioning card slot 11 is opened on the surface of the lifting rod 9, a storage slot 12 is opened on the surface of the storage plate 8, and a positioning card plate 13 is arranged inside the storage slot 12;

[0032] First, the positioning card plate 13 can be rotated to make the positioning card plate 13 lose the limiting effect on the support plate 10, and then the lifting rod 9 can be pushed upward. When the support plate 10 is moved to a suitable height, the lifting rod 9 is fixed by inserting the positioning card plate 13 into the positioning card slot 11. Then the spray head 7 can be turned on to work. Then, the sand and gravel are fed into the screening machine body 1 through the feeding bin 4 for sand and gravel screening, and the dust generated during sand and gravel screening can be dust-reduced by the water mist sprayed by the spray head 7, thus avoiding the problem that the dust in the air is inhaled by the staff and will cause harm to the staff's body.

[0033] Embodiment 2

[0034] On the basis of Embodiment 1, in order to facilitate dust reduction of the dust generated during sand and gravel screening, a spray head 7 is provided. The placement plate 2 is fixedly connected to the end face of the screening machine body 1, the positioning frame 3 is fixedly connected to the surface of the placement plate 2, a guiding plate 14 is arranged on the inner side of the positioning frame 3, and the sand and gravel can be fed into the screening machine body 1 through the guiding plate 14 for screening. A water storage tank 15 is arranged on the surface of the placement plate 2, the water storage tank 15 is connected to the input end of the water pump 5 through a water pipe, the water pump 5 is fixedly connected to the surface of the placement plate 2, and an installation plate 16 is arranged on the side of the spray head 7. The installation plate 16 is integrally in the shape of a "C"-shaped plate structure;

[0035] When in use, the water in the water tank 15 can be pumped out by the water pump 5, and then the atomizing nozzle 7 can be used to spray water mist to reduce dust in the air, thereby preventing the dust from affecting the staff around the screening machine body 1. When screening sand and gravel, the unloading bin 4 can be used for unloading, and then the sand and gravel can be conveniently delivered to the screening machine body 1 for screening in cooperation with the guide plate 14.

[0036] In order to facilitate the adjustment of the height of the atomizing nozzle 7, a lifting rod 9 is provided, and multiple groups of positioning slots 11 are provided. The multiple groups of positioning slots 11 are arranged linearly and equidistantly on the surface of the lifting rod 9. The support plate 10 is fixedly connected to the end face of the lifting rod 9. The lifting rod 9 is provided with two groups. The two groups of lifting rods 9 are symmetrically distributed about the center line of the long side of the support plate 10. The support plate 10, the auxiliary plate 22 and the atomizing nozzle 7 can fill the storage groove 12. The surface of the storage plate 8 is provided with a threaded groove 27, and a fixing bolt 28 can be screwed in the threaded groove 27. The end face of the fixing bolt 28 can be aligned with the positioning The upper side of the card plate 13 is limited, and a damping bearing 29 is provided on the inner side of the storage groove 12. The inner ring surface of the damping bearing 29 is fixedly connected with a rotating rod 30. The side of the positioning card plate 13 is fixedly connected to the end surface of the rotating rod 30. Two groups of damping bearings 29 are provided. The two groups of damping bearings 29 are symmetrically distributed about the positioning card plate 13. The positioning card plate 13 is an "L"-shaped plate structure as a whole. One end of the positioning card plate 13 can be inserted into the positioning card slot 11. The upper and lower widths of the positioning card slot 11 are wide enough, and one end of the positioning card plate 13 is not affected when inserted or withdrawn from the positioning card slot 11;

[0037] When the height of the atomizing nozzle 7 needs to be adjusted during use, the positioning card plate 13 can be rotated in cooperation with the damping bearing 29, and then the lifting rod 9 can be pulled. After the lifting rod 9 is pulled to a suitable height, the positioning card plate 13 is rotated in cooperation with the damping bearing 29 so that one end of the positioning card plate 13 is inserted into the positioning card slot 11 to fix the lifting rod 9. The self-gravity of the structure such as the lifting rod 9 can prevent the positioning card plate 13 from automatically detaching from the positioning card slot 11, thereby adjusting the height of the atomizing nozzle 7 for convenient entry. When not in use, the support plate 10 and the atomizing nozzle 7 can be pressed into the storage groove 12, and then the support plate 10 can be fixed by inserting one end of the positioning card plate 13 into the upper surface of the support plate 10, so that the support plate 10, the auxiliary plate 22 and the atomizing nozzle 7 can be stored in the storage groove 12, and it is also convenient to fill the storage groove 12. The upper surface of the positioning card plate 13 can be supported by the set fixing bolts 28, thereby avoiding the problem of the positioning card plate 13 rotating when the support plate 10 is fixed.

[0038] Embodiment 3

[0039] On the basis of the second embodiment, in order to facilitate the adjustment of the angle of the atomizing nozzle 7, an auxiliary plate 22 is provided, a vertical plate 24 is provided at the bottom of the support plate 10, a movable bolt 25 is screwed in the vertical plate 24, a push plate 26 is provided at the bottom of the auxiliary plate 22, the push plate 26 is a square plate-shaped structure, the movable bolt 25 can push the push plate 26, the vertical plate 24 is a square plate-shaped structure, one end of the support plate 10 is connected to the auxiliary plate 22 by a hinge 21, the auxiliary plate 22 is a square plate-shaped structure, the auxiliary plate 22 can be inserted into the mounting plate 16, and the auxiliary plate 22 can be fixedly connected to the mounting plate 16 by a positioning bolt 23;

[0040] When it is necessary to adjust the upward angle of the atomizing nozzle 7, the movable bolt 25 can be directly rotated to push the push plate 26, so that the auxiliary plate 22 can be rotated in conjunction with the hinge 21, so that the angle of the atomizing nozzle 7 can be raised, and the atomizing nozzle 7 can be conveniently changed in angle to deal with dust.

[0041] In order to facilitate the support plate 10 to automatically move up when in use, a return spring 20 is provided. The storage plate 8 is fixedly connected to the surface of the screening machine body 1 by means of a limit bolt 17. The storage groove 12 is a "T"-shaped plate structure as a whole. A first bearing 18 is provided at the bottom of the storage plate 8. The lifting rod 9 passes through the inner ring surface of the first bearing 18. The lifting rod 9 can move up and down along the storage plate 8. A thread is provided on the surface of the lifting rod 9. A moving nut 19 is screwed on the thread. A return spring 20 is provided on the surface of the moving nut 19. One end of the return spring 20 is fixedly connected to the surface of the moving nut 19, and the other end of the return spring 20 is fixedly connected to the surface of the first bearing 18.

[0042] When in use, after the positioning card plate 13 is removed from the upper surface of the support plate 10, the elastic force of the reset spring 20 can automatically move the lifting rod 9 upward, so that the support plate 10 and the atomizing nozzle 7 can be moved to a suitable height, so that the atomizing nozzle 7 can be used directly. When the lifting rod 9 needs to be taken out from the storage plate 8, the moving nut 19 can be rotated in conjunction with the first bearing 18 to disengage the moving nut 19 from the lifting rod 9, and the lifting rod 9 can be taken out from the storage plate 8. The provision of the first bearing 18 also avoids the problem of twisting of the reset spring 20 when the moving nut 19 is rotated.

[0043] 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 sand and gravel screening device for construction, characterized in that: The described sand and gravel screening device for building construction includes: a screening machine body (1), a placement plate (2) is arranged on the end face of the screening machine body (1), a positioning frame (3) and a water pump (5) are arranged on the surface of the placement plate (2), a feeding bin (4) is arranged at one end of the positioning frame (3), and the output end of the water pump (5) is connected to an atomizing nozzle (7) by a water delivery pipe (6); A storage plate (8), a lifting rod (9) is arranged inside the storage plate (8), a support plate (10) is arranged at one end of the lifting rod (9), a positioning card slot (11) is formed on the surface of the lifting rod (9), a storage slot (12) is formed on the surface of the storage plate (8), and a positioning card plate (13) is arranged inside the storage slot (12).

2. A sand and gravel screening device for construction according to claim 1, characterized in that: The placement plate (2) is fixedly connected to the end face of the screening machine body (1), the positioning frame (3) is fixedly connected to the surface of the placement plate (2), a guiding plate (14) is arranged on the inner side surface of the positioning frame (3), and sand and gravel can be fed into the screening machine body (1) through the guiding plate (14) for screening.

3. The sand and gravel screening device for construction according to claim 1, characterized in that: A water storage tank (15) is arranged on the surface of the placement plate (2), the water storage tank (15) is connected to the input end of the water pump (5) by a water pipe, the water pump (5) is fixedly connected to the surface of the placement plate (2), an installation plate (16) is arranged on the side of the atomizing nozzle (7), and the installation plate (16) is integrally in the shape of a "C"-shaped plate structure.

4. The sand and gravel screening device for construction according to claim 1, characterized in that: The storage plate (8) is fixedly connected to the surface of the screening machine body (1) by a limit bolt (17), the storage slot (12) is integrally in the shape of a "T"-shaped plate structure, a first bearing (18) is arranged at the bottom of the storage plate (8), the lifting rod (9) passes through the inner ring surface of the first bearing (18), and the lifting rod (9) can move up and down along the storage plate (8).

5. The sand and gravel screening device for construction according to claim 1, characterized in that: Threads are formed on the surface of the lifting rod (9), a moving nut (19) is screwed on the threads, a return spring (20) is arranged on the surface of the moving nut (19), one end of the return spring (20) is fixedly connected to the surface of the moving nut (19), and the other end of the return spring (20) is fixedly connected to the surface of the first bearing (18).

6. The sand and gravel screening device for construction according to claim 1, characterized in that: Multiple groups of positioning card slots (11) are formed, and the multiple groups of positioning card slots (11) are linearly arranged at equal intervals on the surface of the lifting rod (9), the support plate (10) is fixedly connected to the end face of the lifting rod (9), two sets of lifting rods (9) are arranged, and the two sets of lifting rods (9) are symmetrically distributed about the long side center line of the side surface of the support plate (10).

7. The sand and gravel screening device for construction according to claim 1, characterized in that: One end of the support plate (10) is connected to an auxiliary plate (22) by a hinge (21), the auxiliary plate (22) is in the shape of a square plate structure, the auxiliary plate (22) can be inserted into the installation plate (16), and the auxiliary plate (22) can be fixedly connected to the inside of the installation plate (16) by a positioning bolt (23).

8. The sand and gravel screening device for construction according to claim 1, characterized in that: A vertical plate (24) is arranged at the bottom of the support plate (10), a moving bolt (25) is screwed inside the vertical plate (24), a push plate (26) is arranged at the bottom of the auxiliary plate (22), the push plate (26) is in the shape of a square plate structure, and the moving bolt (25) can push the push plate (26), and the vertical plate (24) is in the shape of a square plate structure.

9. The sand and gravel screening device for construction according to claim 1, characterized in that: The support plate (10), the auxiliary plate (22) and the atomizing nozzle (7) can fill the storage groove (12); a threaded groove (27) is provided on the surface of the storage plate (8); a fixing bolt (28) can be screwed into the threaded groove (27); and the end surface of the fixing bolt (28) can limit the upper side of the positioning clamping plate (13).

10. The sand and gravel screening device for construction according to claim 1, characterized in that: The inner side surface of the storage groove (12) is provided with a damping bearing (29), the inner ring surface of the damping bearing (29) is fixedly connected to a rotating rod (30), the side surface of the positioning card plate (13) is fixedly connected to the end surface of the rotating rod (30), two groups of damping bearings (29) are provided, the two groups of damping bearings (29) are symmetrically distributed about the positioning card plate (13), the positioning card plate (13) is an "L"-shaped plate structure as a whole, one end of the positioning card plate (13) can be inserted into the positioning card slot (11), the upper and lower widths of the positioning card slot (11) are wide enough, and one end of the positioning card plate (13) is not affected when inserted into or withdrawn from the positioning card slot (11).

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