Sand screening device for constructional engineering
By designing a sand screening device for construction engineering including primary screening and re-screening mechanisms, the problems of blockage and low efficiency of the sand screening machine filter in the prior art are solved, and efficient sand screening process and rapid garbage collection are achieved.
Patent Information
- Application Number
- CN202420331953.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-22
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-02-22
AI Technical Summary
The existing sand screening machines are prone to filter blockage during the sand screening process, resulting in a reduced sand screening efficiency and require manual shutdown and cleaning, which affects work efficiency.
A construction project sand screening device is designed, including a primary screening mechanism and a re-screening mechanism. The primary screening mechanism is initially filtered through the drive box and the primary screen metal grid. The re-screening mechanism is further screened through the bump box and the re-screening inclined filter net, and the rapid collection of garbage and gravel is achieved through the guide shell and gravel collection mechanism to avoid blockage of the sand screening structure.
It effectively prevents blockage of sand screening structure, improves sand screening efficiency, reduces the need for manual shutdown and cleansing, and improves work efficiency.
Smart Images
Figure CN222551391U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction engineering, in particular to a sand screening device for construction engineering. Background Art
[0002] During the construction process, workers need to use a lot of yellow sand, but the yellow sand will be mixed with a lot of stones during the mining process. If these stones are not screened out, they will affect the quality of the processed products containing yellow sand, and then cause the quality of the building to decline. Therefore, workers need to use sand screening machines to screen out the stones. The existing technology has the following problems:
[0003] Because the stones intercepted by the filter in the existing sand screening machine will be concentrated on the surface of the filter, and then will cause blockage in part of the surface of the filter, thus affecting the sand screening efficiency, it is necessary to manually pause the sand screening machine, and then remove the filter, clean the filtered material and reinstall it before screening the sand again, which leads to the problem of reduced sand screening efficiency. Utility Model Content
[0004] The utility model provides a construction engineering sand screening device to solve the problems raised in the above background technology.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0006] A sand screening device for construction projects comprises a sand screening box body, a sand inlet funnel is fixedly connected to the top of the sand screening box body, a primary screening mechanism is arranged above the inner cavity of the sand screening box body, a secondary screening mechanism is arranged at the middle end of the inner cavity of the sand screening box body, the secondary screening mechanism is located below the primary screening mechanism, a movable door is movably installed on the front side of the sand screening box body, a gravel collecting mechanism is arranged on the left side of the sand screening box body, a garbage outlet hole which passes through left and right is opened on the upper left side of the sand screening box body, a guide shell is fixedly installed on the upper left side of the sand screening box body, the guide shell is located on the left side of the garbage outlet hole, and a gravel outlet hole which passes through left and right is opened in the middle left side of the sand screening box body.
[0007] The primary screening mechanism includes a driving box and a primary screening metal grille, wherein the primary screening metal grille is located on the front side of the driving box, and the driving box is fixedly mounted on the rear side of the sand screening box body, and the rear side of the primary screening metal grille is fixedly connected to the rear side of the inner wall of the sand screening box body, and a slide groove is provided on the front side of the driving box, and the slide groove is connected to the inner cavity of the sand screening box body, and a motor is fixedly mounted on the left side of the driving box, and a reciprocating screw is fixedly mounted on the output shaft of the motor, and the right end of the reciprocating screw penetrates into the inner cavity of the slide groove and is movably connected to the right side of the inner wall of the slide groove, and a movable plate is threadedly mounted on the outer wall of the reciprocating screw, and a cleaning brush is fixedly mounted on the front side of the movable plate, and the bottom of the cleaning brush overlaps the top of the primary screening metal grille, and the top of the primary screening metal grille and the bottom of the inner wall of the garbage outlet hole are located on a horizontal line.
[0008] A further improvement of the technical solution of the utility model lies in that: the re-screening mechanism includes a bump box, the bump box is fixedly installed on the right side of the sand screening box body, an electric telescopic rod is fixedly installed on the bottom of the inner wall of the bump box, a lifting plate is fixedly installed on the telescopic output shaft of the electric telescopic rod, two through grooves are opened on the left side of the inner wall of the bump box, both of the through grooves are connected to the inner cavity of the sand screening box body, connecting rods are fixedly installed on the front and rear ends of the lifting plate, the left ends of the two connecting rods pass through the two through grooves to the inner cavity of the sand screening box body, and the left ends of the two connecting rods are fixedly installed with a re-screening inclined filter net, and a rebound mechanism is provided on the left side of the bottom of the re-screening inclined filter net.
[0009] A further improvement of the technical solution of the utility model is that the rebound mechanism includes a fixed plate, the left side of the fixed plate is fixedly connected to the left side of the inner wall of the sand screening box body, three springs are fixedly installed on the top of the fixed plate, and the top ends of the three springs are fixedly connected to the bottom left side of the double-screening inclined filter net.
[0010] A further improvement of the technical solution of the utility model lies in that a sand return hole that runs through the left and right sides is opened at the lower left side of the sand screening box body, the gravel collecting mechanism includes a gravel collecting box, a wire mesh is fixedly installed on the inner wall of the gravel collecting box, plug blocks are fixedly installed on the front and back of the right side of the gravel collecting box, a conical strip is fixedly installed at the lower right side of the gravel collecting box, the wire mesh is located above the sand return hole, the bottom of the conical strip overlaps with the bottom of the inner wall of the sand return hole, and the bottom of the inner wall of the gravel collection box is a bevel.
[0011] A further improvement of the technical solution of the utility model is that slots are provided at the front and back of the left side of the sand screening box body, the two slots are respectively located at the front and back sides of the sand return hole, the two plug blocks are clamped with the two slots, two bolt holes are provided on the left side of the front end of the sand screening box body, the two bolt holes are connected with the inner cavity of the left slot, two fixing bolts are arranged on the left side of the front end of the sand screening box body, the two fixing bolts pass through the two bolt holes and fix the left plug block.
[0012] A further improvement of the technical solution of the utility model is that a sand outlet funnel is fixedly installed on the bottom of the inner wall of the sand screening box body, and a sand outlet hole penetrating to the inner cavity is opened at the bottom of the sand screening box body, and the sand outlet hole is connected to the center of the sand outlet funnel.
[0013] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:
[0014] 1. The utility model provides a sand screening device for construction projects. Through the cooperation of a guide shell, a gravel collection mechanism, and a sand screening box, the stones and garbage filtered out of the sand can be quickly collected, effectively preventing the sand screening structure from being blocked. At the same time, there is no need to stop the machine for cleaning, which effectively improves the cleaning efficiency.
[0015] 2. The utility model provides a sand screening device for construction projects. Through the cooperation of the primary screening mechanism and the secondary screening mechanism, the screening of the screen can be made more refined, and the efficiency of sand screening can be effectively improved by using two layers of sand screening structures with different apertures. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is an overall schematic diagram of the structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the primary screening mechanism of the utility model structure;
[0018] Figure 3 It is a schematic diagram of the re-screening mechanism of the utility model structure;
[0019] Figure 4 It is a schematic diagram of the rebound mechanism of the utility model structure;
[0020] Figure 5 The figure is a schematic diagram of the gravel collection mechanism of the utility model structure.
[0021] In the figure: 1. sand screening box body; 11. garbage outlet hole; 12. guide shell; 13. slot; 14. bolt hole; 15. fixing bolt; 16. sand outlet funnel; 17. sand outlet hole; 18. sand return hole; 2. sand inlet funnel; 3. primary screening mechanism; 31. drive box; 32. slide slot; 33. motor; 34. reciprocating screw; 35. moving plate; 36. cleaning brush; 37. primary screening metal grid; 4. secondary screening mechanism; 41. bump box; 42. electric telescopic rod; 43. through slot; 44. lifting plate; 45. connecting rod; 46. secondary screening inclined filter; 47. rebound mechanism; 471. fixed plate; 472. spring; 5. movable door; 6. gravel collection mechanism; 61. gravel collection box; 62. wire mesh; 63. plug block; 64. conical strip plate. DETAILED DESCRIPTION
[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0023] like Figure 1 , Figure 2 As shown, the utility model provides a sand screening device for construction engineering, including a sand screening box body 1, a sand inlet funnel 2 is fixedly connected to the top of the sand screening box body 1, a primary screening mechanism 3 is arranged above the inner cavity of the sand screening box body 1, a secondary screening mechanism 4 is arranged at the middle end of the inner cavity of the sand screening box body 1, and the secondary screening mechanism 4 is located below the primary screening mechanism 3, a movable door 5 is movably installed on the front side of the sand screening box body 1, and the interior of the sand screening box body 1 can be conveniently observed and repaired by opening the movable door 5, a gravel collecting mechanism 6 is arranged on the left side of the sand screening box body 1, a garbage outlet hole 11 which passes through the left and right sides is opened on the upper left side of the sand screening box body 1, a guide shell 12 is fixedly installed on the upper left side of the sand screening box body 1, and the guide shell 12 is located on the left side of the garbage outlet hole 11, a gravel outlet hole which passes through the left and right sides is opened in the middle part of the left side of the sand screening box body 1, the primary screening mechanism 3 includes a driving box 31, a primary screening The metal grille 37, the primary screening metal grille 37 is located at the front side of the driving box 31, the driving box 31 is fixedly mounted on the rear side of the sand screening box body 1, the rear side of the primary screening metal grille 37 is fixedly connected to the rear side of the inner wall of the sand screening box body 1, a slide groove 32 is provided on the front side of the driving box 31, and the slide groove 32 is connected to the inner cavity of the sand screening box body 1, a motor 33 is fixedly mounted on the left side of the driving box 31, a reciprocating screw 34 is fixedly mounted on the output shaft of the motor 33, the right end of the reciprocating screw 34 penetrates into the inner cavity of the slide groove 32 and is movably connected to the right side of the inner wall of the slide groove 32, a moving plate 35 is threadedly mounted on the outer wall of the reciprocating screw 34, a cleaning brush 36 is fixedly mounted on the front side of the moving plate 35, the bottom of the cleaning brush 36 overlaps with the top of the primary screening metal grille 37, and the top of the primary screening metal grille 37 and the bottom of the inner wall of the garbage outlet hole 11 are located on the same horizontal line;
[0024] When screening sand, pour sand into the sand inlet hopper 2. When the sand passes through the primary screening metal grille 37 included in the primary screening mechanism 3, the large garbage in the sand will be filtered first. The large garbage on the primary screening metal grille 37 can be driven by the motor 33 on the left side of the driving box 31 to drive the reciprocating screw 34 in the slide slot 32 to rotate, so that the moving plate 35 drives the cleaning brush 36 to reciprocate left and right, thereby pushing the garbage out of the garbage outlet 11, and cooperating with the guide shell 12 to prevent the garbage from splashing.
[0025] like Figure 3 , Figure 4 As shown, the re-screening mechanism 4 includes a bumping box 41, which is fixedly installed on the right side of the sand screening box body 1, and an electric telescopic rod 42 is fixedly installed on the bottom of the inner wall of the bumping box 41. A lifting plate 44 is fixedly installed on the telescopic output shaft of the electric telescopic rod 42. Two through grooves 43 are provided on the left side of the inner wall of the bumping box 41. Both through grooves 43 are connected to the inner cavity of the sand screening box body 1. Connecting rods 45 are fixedly installed at both ends of the lifting plate 44. The left ends of the two connecting rods 45 penetrate the two A through slot 43 is connected to the inner cavity of the sand screening box body 1, and a double-screening inclined filter screen 46 is fixedly installed at the left end of the two connecting rods 45, and a rebound mechanism 47 is arranged on the left side of the bottom of the double-screening inclined filter screen 46. The rebound mechanism 47 includes a fixed plate 471, and the left side of the fixed plate 471 is fixedly connected to the left side of the inner wall of the sand screening box body 1. Three springs 472 are fixedly installed on the top of the fixed plate 471, and the top ends of the three springs 472 are fixedly connected to the left side of the bottom of the double-screening inclined filter screen 46;
[0026] After preliminary screening by the primary screening mechanism 3, the sand will fall on the inclined secondary screening inclined filter screen 46, and will be repeatedly moved up and down by the electric telescopic rod 42 in the bump box 41, which can drive the lifting plate 44 and the two connecting rods 45 at the front and rear ends of the lifting plate 44 to move up and down in the two through grooves 43, so that the secondary screening inclined filter screen 46 can reciprocate up and down, and at the same time, with the three springs 472 on the fixed plate 471, the inclined secondary screening inclined filter screen 46 can be shaken up and down, and the sand can fall through the small aperture of the secondary screening inclined filter screen 46, and the gravel in the sand can roll out through the gravel outlet hole under vibration.
[0027] like Figure 5As shown, a sand return hole 18 is provided at the lower left side of the sand screening box 1, and the gravel collecting mechanism 6 includes a gravel collecting box 61. A wire mesh 62 is fixedly installed on the inner wall of the gravel collecting box 61. Insert blocks 63 are fixedly installed at the front and rear of the right side of the gravel collecting box 61. A conical strip 64 is fixedly installed at the lower right side of the gravel collecting box 61. The wire mesh 62 is located above the sand return hole 18. The bottom of the conical strip 64 overlaps with the bottom of the inner wall of the sand return hole 18. The bottom of the inner wall of the gravel collecting box 61 is a bevel. Slots 13 are provided at the front and rear of the left side of the sand screening box 1. Two The slots 13 are respectively located at the front and rear sides of the sand return hole 18, and the two plug blocks 63 are clamped with the two slots 13. Two bolt holes 14 are provided on the left side of the front end of the sand screening box body 1. The two bolt holes 14 are connected with the inner cavity of the left slot 13. Two fixing bolts 15 are provided on the left side of the front end of the sand screening box body 1. The two fixing bolts 15 penetrate the two bolt holes 14 and fix the left plug block 63. A sand outlet funnel 16 is fixedly installed at the bottom of the inner wall of the sand screening box body 1. A sand outlet hole 17 that penetrates to the inner cavity is provided at the bottom of the sand screening box body 1. The sand outlet hole 17 is connected with the center of the sand outlet funnel 16.
[0028] The gravel rolling out of the gravel outlet hole can fall on the wire mesh 62 in the gravel collecting box 61. The sand accidentally entering the gravel collecting box 61 can also fall through the filtration of the wire mesh 62 and return to the inner cavity of the sand screening box body 1 through the conical strips 64 and the sand return holes 18. The sand that falls down is screened by the double-screening inclined filter net 46 and discharged from the sand outlet hole 17 together with the sand outlet funnel 16 to obtain clean sand. When the garbage in the gravel collecting box 61 needs to be cleaned, only the two fixing bolts 15 need to be removed, and the gravel collecting box 61 can be directly disassembled by using the plug block 63 to be separated from the slot 13, thereby completing the disassembly and facilitating cleaning.
[0029] The following is a detailed description of the working principle of the sand screening device for construction projects.
[0030] like Figure 1-5As shown, when screening sand, pour the sand from the sand inlet funnel 2. When the sand passes through the primary screening metal grille 37 included in the primary screening mechanism 3, the large garbage in the sand will be filtered first, and then the sand will fall on the inclined secondary screening inclined filter screen 46. The electric telescopic rod 42 in the bump box 41 can be repeatedly moved up and down, which can drive the lifting plate 44 and the two connecting rods 45 at the front and rear ends of the lifting plate 44 to move up and down in the two through grooves 43, so that the secondary screening inclined filter screen 46 can reciprocate up and down, and the sand can fall through the small aperture of the secondary screening inclined filter screen 46, and the gravel in the sand can use the gravel outlet hole to roll onto the wire mesh 62 in the gravel collection box 61. Sand that accidentally enters the gravel collection box 61 can pass through the wire mesh 62. The filtered sand falls down and returns to the inner cavity of the sand screening box body 1 through the conical strip plate 64 and the sand return hole 18. The sand that falls down along with the screening is discharged from the sand outlet hole 17 through the sand outlet funnel 16 to obtain clean sand. The large garbage on the initial screening metal grille 37 can be driven by the motor 33 on the left side of the drive box 31 to drive the reciprocating screw 34 in the slide 32 to rotate, so that the moving plate 35 drives the cleaning brush 36 to reciprocate left and right, thereby pushing the garbage out of the garbage outlet hole 11 and directly falling into the gravel collection box 61 through the guide shell 12. When the garbage in the gravel collection box 61 needs to be cleaned, it only needs to remove the two fixing bolts 15, and the gravel collection box 61 can be directly disassembled by using the plug block 63 to separate from the slot 13, thereby completing the disassembly and facilitating cleaning.
[0031] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A construction engineering sand screening device, comprising a sand screening box (1), characterized in that: The top of the sand screening box (1) is fixedly connected to a sand inlet funnel (2); a primary screening mechanism (3) is arranged above the inner cavity of the sand screening box (1); a secondary screening mechanism (4) is arranged at the middle end of the inner cavity of the sand screening box (1); the secondary screening mechanism (4) is located below the primary screening mechanism (3); a movable door (5) is movably installed on the front side of the sand screening box (1); a gravel collecting mechanism (6) is arranged on the left side of the sand screening box (1); a garbage outlet hole (11) extending from left to right is provided on the upper left side of the sand screening box (1); a guide shell (12) is fixedly installed on the upper left side of the sand screening box (1); the guide shell (12) is located on the left side of the garbage outlet hole (11); and a gravel outlet hole extending from left to right is provided in the middle of the left side of the sand screening box (1); The primary screening mechanism (3) comprises a driving box (31) and a primary screening metal grille (37). The primary screening metal grille (37) is located at the front side of the driving box (31). The driving box (31) is fixedly mounted on the rear side of the sand screening box body (1). The rear side of the primary screening metal grille (37) is fixedly connected to the rear side of the inner wall of the sand screening box body (1). A slide groove (32) is provided on the front side of the driving box (31), and the slide groove (32) is connected to the inner cavity of the sand screening box body (1). A motor (33) is fixedly mounted on the left side of the driving box (31). A reciprocating screw (34) is fixedly mounted on the output shaft of the machine (33), the right end of the reciprocating screw (34) penetrates into the inner cavity of the slide groove (32) and is movably connected to the right side of the inner wall of the slide groove (32), a movable plate (35) is threadedly mounted on the outer wall of the reciprocating screw (34), a cleaning brush (36) is fixedly mounted on the front side of the movable plate (35), the bottom of the cleaning brush (36) overlaps the top of the primary screening metal grille (37), and the top of the primary screening metal grille (37) and the bottom of the inner wall of the garbage outlet hole (11) are located on the same horizontal line.
2. A construction engineering sand screening device according to claim 1, characterized in that: The re-screening mechanism (4) comprises a bumping box (41), the bumping box (41) is fixedly mounted on the right side of the sand screening box body (1), an electric telescopic rod (42) is fixedly mounted on the bottom of the inner wall of the bumping box (41), a lifting plate (44) is fixedly mounted on the telescopic output shaft of the electric telescopic rod (42), two through slots (43) are provided on the left side of the inner wall of the bumping box (41), both of the two through slots (43) are connected to the inner cavity of the sand screening box body (1), connecting rods (45) are fixedly mounted on the front and rear ends of the lifting plate (44), the left ends of the two connecting rods (45) pass through the two through slots (43) to the inner cavity of the sand screening box body (1), and a re-screening inclined filter screen (46) is fixedly mounted on the left ends of the two connecting rods (45), and a rebound mechanism (47) is provided on the left side of the bottom of the re-screening inclined filter screen (46).
3. A construction engineering sand screening device according to claim 2, characterized in that: The rebound mechanism (47) comprises a fixed plate (471), the left side of which is fixedly connected to the left side of the inner wall of the sand screening box (1), and three springs (472) are fixedly installed on the top of the fixed plate (471), and the top ends of the three springs (472) are fixedly connected to the left side of the bottom of the double-screen inclined filter (46).
4. A construction engineering sand screening device according to claim 1, characterized in that: A sand return hole (18) is provided at the lower left side of the sand screening box body (1) and is connected to the left and right sides. The gravel collecting mechanism (6) comprises a gravel collecting box (61). A wire mesh (62) is fixedly installed on the inner wall of the gravel collecting box (61). Insert blocks (63) are fixedly installed at the front and rear of the right side of the gravel collecting box (61). A conical strip (64) is fixedly installed at the lower right side of the gravel collecting box (61). The wire mesh (62) is located above the sand return hole (18). The bottom of the conical strip (64) overlaps with the bottom of the inner wall of the sand return hole (18). The bottom of the inner wall of the gravel collecting box (61) is a bevel.
5. A construction engineering sand screening device according to claim 4, characterized in that: The sand screening box body (1) is provided with slots (13) at the front and rear of the left side, and the two slots (13) are respectively located at the front and rear sides of the sand return hole (18), and the two plug blocks (63) are snap-connected with the two slots (13). The front left side of the sand screening box body (1) is provided with two bolt holes (14), and the two bolt holes (14) are connected with the inner cavity of the left slot (13). The front left side of the sand screening box body (1) is provided with two fixing bolts (15), and the two fixing bolts (15) pass through the two bolt holes (14) and fix the left plug block (63).
6. A construction engineering sand screening device according to claim 1, characterized in that: A sand outlet funnel (16) is fixedly mounted on the bottom of the inner wall of the sand screening box (1), and a sand outlet hole (17) penetrating to the inner cavity is provided at the bottom of the sand screening box (1), and the sand outlet hole (17) is connected to the center of the sand outlet funnel (16).