Screening device for sandbag filling

Abstract

The invention relates to the technical field of sandbag filling, and discloses a screening device for sandbag filling, which comprises a base, a screening groove is formed in the top of the base, a discharging pipe is arranged at the bottom of the screening groove, and a screening net plate with a conical structure is arranged in the screening groove. Extending side wings which are annularly distributed are arranged on the circumference of the screening net plate; the screening efficiency can be improved, the material stirring mechanism can stir large-particle impurities sliding to the circumference of the top of the screening net plate to the opening positions of the slag discharging openings, the large-particle impurities fall into the slag collecting shell through the slag discharging openings, and the large-particle impurities are separated from the slag collecting shell through the slag discharging openings. The movable door can be opened to discharge large-particle impurities in the slag collecting shell, gravel filled in the sandbag can be effectively screened, and the situation that the side wall of the sandbag is abraded and damaged due to the fact that the large-particle impurities in the gravel are contained in the sandbag is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of sandbag filling, and in particular to a screening device for sandbag filling. Background Art

[0002] The construction of sandbag cofferdam currently adopts the filling process of sand pump. There are two sources of sand. One is externally purchased sand, which is of good quality but expensive. The second is to use the existing sand on the site, which saves huge material costs and improves construction efficiency. However, the existing sand on the site may contain tree roots, stones and other debris, which affects the construction efficiency and project quality.

[0003] When filling sandbags, the sand and gravel in the bags need to be screened to prevent large particles of impurities mixed in the sand and gravel from being put into the bags, which will affect the construction efficiency, reduce the quality, and cause the sandbags to break. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a screening device for sandbag filling.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A screening device for filling sandbags, comprising a base, a screening trough is installed on the top of the base, a feeding pipe is provided at the bottom of the screening trough, a screening mesh plate of a conical structure is provided inside the screening trough, and an annularly distributed extended side wings are provided at the circumference of the screening mesh plate; slag discharge ports arranged at intervals are opened on the circumferential side walls of the screening trough, and the bottom inner walls of the slag discharge ports are connected to the bottoms of the extended side wings through springs; a slag collecting shell of an annular structure is provided at the circumference of the screening trough, the opening position of the slag discharge ports is located inside the slag collecting shell, and a movable door is movably provided at the bottom of the slag collecting shell; a movable shaft is movably provided at the center of the screening mesh plate, and a material shifting mechanism is provided at one end of the movable shaft extending to the top of the screening mesh plate, which is used to shift the sand and gravel sliding off the screening mesh plate; a driving mechanism is provided inside the screening trough, which is used to drive the movable shaft to rotate.

[0007] Preferably, the bottom inner wall of the slag collecting shell is inclined.

[0008] Preferably, the inner wall of the screening mesh plate is provided with annularly distributed fixing protrusions, and the side of the movable shaft is provided with a pushing component, and the position of one end of the pushing component away from the movable shaft corresponds to the position of the fixing protrusions.

[0009] Preferably, a material shifting component is provided on the side of the movable shaft for shifting the sand and gravel at the bottom of the screening trough.

[0010] Preferably, the driving mechanism includes a mounting seat installed inside the screening slot, a driving gear is movably provided on the top of the mounting seat, and a driving component for driving the driving gear to rotate is provided on the bottom of the mounting seat; a driven tooth is provided on the side of the movable shaft, and the circumference of the driving gear is meshed with the driven tooth.

[0011] Preferably, a protective cover is provided at the circumference of the movable shaft.

[0012] Preferably, the material shifting mechanism comprises an extension rod installed at the top of the movable shaft, a fixed sleeve arranged at intervals is installed at the bottom of the extension rod, an extension material shifting rod is installed inside the fixed sleeve through a spring, and the bottom end of the extension material shifting rod is against the top of the screening mesh plate.

[0013] Preferably, a mounting frame is mounted on one end of the extension rod close to the slag discharge opening via a spring, and a slag removing component is provided at the bottom of the mounting frame.

[0014] The beneficial effects of the present invention are:

[0015] When in use, the sand and gravel to be screened are loaded to the center of the screening mesh plate, and the screening mesh plate screens the sand and gravel sliding down from the top. The screened sand and gravel fall to the bottom of the screening trough and are discharged into the sandbag through the discharge pipe. The screened large-particle impurities slide to the circumference of the top of the screening mesh plate, and the driving mechanism drives the movable shaft to rotate, and the movable shaft drives the material-digging mechanism to rotate to dig the sand and gravel sliding down from the screening mesh plate, thereby improving the screening efficiency. The material-digging mechanism can dig the large-particle impurities sliding to the circumference of the top of the screening mesh plate to the opening of the slag discharge port, and the large-particle impurities fall into the slag collecting shell through the slag discharge port. The movable door can be opened to discharge the large-particle impurities in the slag collecting shell, and the sand and gravel filled in the sandbag can be effectively screened to avoid the large-particle impurities in the sand and gravel being loaded into the sandbag and causing the side wall of the sandbag to be worn and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a screening device for filling sandbags proposed in an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of the top view of a screening mesh plate in a screening device for filling sandbags proposed in an embodiment of the present invention;

[0018] Figure 3 for Figure 1 A magnified view of the local structure at point A in the middle;

[0019] Figure 4 for Figure 1 A magnified view of the local structure at point B in the middle.

[0020] In the figure: 1-screening trough, 2-screening mesh plate, 3-pushing component, 4-fixed protrusion, 5-movable door, 6-movable shaft, 7-feeding pipe, 8-feeding component, 9-slag discharge port, 10-slag collecting shell, 11-driving mechanism, 111-driving gear, 112-mounting seat, 113-driving component, 114-driven gear, 12-protective cover, 13-extended side wing, 14-feeding mechanism, 141-mounting frame, 142-extension rod, 143-fixed sleeve, 144-extended feeding rod, 145-slag feeding component, 15-base. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In one embodiment, referring to Figures 1 to 4 A screening device for filling sandbags, comprising a base 15, a screening slot 1 is installed on the top of the base 15, a feeding pipe 7 is arranged at the bottom of the screening slot 1, a screening mesh plate 2 of a conical structure is arranged inside the screening slot 1, and an annularly distributed extended side wing 13 is arranged at the circumference of the screening mesh plate 2; the circumferential side wall of the screening slot 1 is provided with slag discharge ports 9 arranged at intervals, and the bottom inner wall of the slag discharge port 9 is connected to the bottom of the extended side wing 13 through a spring; a slag collecting shell 10 of an annular structure is arranged at the circumference of the screening slot 1, the opening position of the slag discharge port 9 is located inside the slag collecting shell 10, and a movable door 5 is movably arranged at the bottom of the slag collecting shell 10; a movable shaft 6 is movably arranged at the center of the screening mesh plate 2, and a material shifting mechanism 14 is arranged at one end of the movable shaft 6 extending to the top of the screening mesh plate 2, which is used to shift the sand and gravel sliding off the screening mesh plate 2; a driving mechanism 11 is arranged inside the screening slot 1, which is used to drive the movable shaft 6 to rotate.

[0023] When in use, the sand and gravel to be screened are loaded to the center of the screening mesh plate 2, and the screening mesh plate 2 screens the sand and gravel sliding down from the top. The screened sand and gravel fall to the bottom of the screening trough 1 and are discharged into the sandbag through the discharge pipe 7. The screened large-particle impurities slide to the circumference of the top of the screening mesh plate 2, and the driving mechanism 11 drives the movable shaft 6 to rotate, and the movable shaft 6 drives the material-dispensing mechanism 14 to rotate, and the sand and gravel sliding down from the screening mesh plate 2 is dialed to improve the screening efficiency. The material-dispensing mechanism 14 can dial the large-particle impurities sliding to the circumference of the top of the screening mesh plate 2 to the opening of the slag discharge port 9, and the large-particle impurities fall into the slag collecting shell 10 through the slag discharge port 9. The movable door 5 can be opened to discharge the large-particle impurities in the slag collecting shell 10, and the sand and gravel filled in the sandbag can be effectively screened to avoid the large-particle impurities in the sand and gravel being loaded into the sandbag and causing the side wall of the sandbag to be worn and damaged.

[0024] As a preferred embodiment of the present invention, the bottom inner wall of the slag collecting shell 10 is inclined to ensure that large particles of impurities in the slag collecting shell 10 can effectively slide down to the movable door 5 .

[0025] As a preferred embodiment of the present invention, the inner wall of the screening mesh plate 2 is provided with annularly distributed fixed protrusions 4, and the side of the movable shaft 6 is provided with a pushing component 3, and the position of one end of the pushing component 3 away from the movable shaft 6 corresponds to the position of the fixed protrusion 4. During the rotation of the movable shaft 6, the pushing component 3 reciprocates to push the fixed protrusion 4 and the screening mesh plate 2, so that the screening mesh plate 2 shakes back and forth under the pushing action of the pushing component 3 and the elastic action of the spring, thereby improving the screening efficiency of the screening mesh plate 2 for sand and gravel.

[0026] As a preferred embodiment of the present invention, a material moving component 8 is provided on the side of the movable shaft 6 for moving the sand and gravel at the bottom of the screening trough 1 so that the sand and gravel falling at the bottom of the screening trough 1 can be quickly gathered at the discharge pipe 7.

[0027] As a preferred embodiment of the present invention, the driving mechanism 11 includes a mounting base 112 installed inside the screening slot 1, a driving gear 111 is movably provided on the top of the mounting base 112, and a driving component 113 for driving the driving gear 111 to rotate is provided at the bottom of the mounting base 112; a driven tooth 114 is provided on the side of the movable shaft 6, and the circumference of the driving gear 111 is meshed with the driven tooth 114, and the driving gear 111 can be driven to rotate by the driving component 113, and the movable shaft 6 is driven to rotate by the meshing of the driving gear 111 and the driven tooth 114.

[0028] As a preferred embodiment of the present invention, a protective cover 12 is provided at the circumference of the movable shaft 6, and the protective cover 12 can cover the top of the driving gear 111 and the driven gear 114 to prevent the sand and gravel that fall after screening from accumulating on the driven gear 114 and the driving gear 111, thereby ensuring the effective engagement of the driving gear 111 and the driven gear 114.

[0029] As a preferred embodiment of the present invention, the material shifting mechanism 14 includes an extension rod 142 installed at the top of the movable shaft 6, and a fixed sleeve 143 is installed at the bottom of the extension rod 142 at an interval. An extension material shifting rod 144 is installed inside the fixed sleeve 143 through a spring, and the bottom end of the extension material shifting rod 144 is against the top of the screening mesh plate 2.

[0030] As a preferred embodiment of the present invention, a mounting frame 141 is installed at one end of the extension rod 142 close to the opening of the slag discharge port 9 through a spring, and a slag shifting component 145 is provided at the bottom of the mounting frame 141. The movable shaft 6 drives the extension rod 142 to rotate on the top of the screening mesh plate 2, and the extended material shifting rod 144 shifts the sand and gravel sliding down from the screening mesh plate 2. The slag shifting component 145 can shift the large-particle impurities that have slid to the top circumference of the screening mesh plate 2 to the opening of the slag discharge port 9, so as to facilitate the large-particle impurities screened out by the screening mesh plate 2 to be effectively discharged from the slag discharge port 9 to the slag collecting shell 10.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A screening device for sandbag filling, comprising a base (15), characterized in that: A screening trough (1) is installed on the top of the base (15), a feeding pipe (7) is arranged at the bottom of the screening trough (1), a screening mesh plate (2) with a conical structure is arranged inside the screening trough (1), and annularly distributed extended side wings (13) are arranged at the circumference of the screening mesh plate (2); The circumferential side wall of the screening trough (1) is provided with slag discharge openings (9) arranged at intervals, and the bottom inner wall of the slag discharge opening (9) is connected to the bottom of the extended side wing (13) through a spring; A slag collecting shell (10) of an annular structure is arranged at the circumference of the screening tank (1); the opening position of the slag discharge port (9) is located inside the slag collecting shell (10); and a movable door (5) is movably arranged at the bottom of the slag collecting shell (10); A movable shaft (6) is movably arranged at the center of the screening mesh plate (2), and a material shifting mechanism (14) is arranged at one end of the movable shaft (6) extending to the top of the screening mesh plate (2) for shifting sand and gravel that slides off the screening mesh plate (2); A driving mechanism (11) is provided inside the screening tank (1) for driving the movable shaft (6) to rotate.

2. A screening device for sandbag filling according to claim 1, characterized in that: The bottom inner wall of the slag collecting shell (10) is arranged inclined.

3. A screening device for sandbag filling according to claim 1, characterized in that: The inner wall of the screening mesh plate (2) is provided with annularly distributed fixed protrusions (4), and the side of the movable shaft (6) is provided with a push component (3), and the position of one end of the push component (3) away from the movable shaft (6) corresponds to the position of the fixed protrusion (4).

4. A screening device for sandbag filling according to claim 1, characterized in that: A material shifting component (8) is provided on the side of the movable shaft (6) for shifting the sand and gravel at the bottom of the screening trough (1).

5. A screening device for sandbag filling according to claim 1, characterized in that: The driving mechanism (11) comprises a mounting seat (112) mounted inside the screening tank (1), a driving gear (111) being movably arranged on the top of the mounting seat (112), and a driving component (113) for driving the driving gear (111) to rotate being arranged on the bottom of the mounting seat (112); A driven tooth (114) is provided on the side surface of the movable shaft (6), and the circumference of the driving gear (111) is meshed with the driven tooth (114).

6. A screening device for filling sandbags according to claim 5, characterized in that: A protective cover (12) is provided at the circumference of the movable shaft (6).

7. A screening device for sandbag filling according to claim 1, characterized in that: The material shifting mechanism (14) comprises an extension rod (142) mounted on the top of the movable shaft (6); a fixed sleeve (143) is mounted at a distance from the bottom of the extension rod (142); an extension material shifting rod (144) is mounted inside the fixed sleeve (143) via a spring; the bottom end of the extension material shifting rod (144) abuts against the top of the screening mesh plate (2).

8. A screening device for sandbag filling according to claim 7, characterized in that: One end of the extension rod (142) close to the opening of the slag discharge port (9) is mounted with a mounting frame (141) via a spring, and a slag removing component (145) is provided at the bottom of the mounting frame (141).

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