Building gravel screening device

Abstract

The utility model relates to the technical field of building engineering, and discloses a building gravel screening device which comprises a screening frame, supporting columns are fixedly connected to the corners of the bottom of the screening frame, the bottom end of the screening frame is fixedly communicated with a discharging hopper, and the bottom end of the discharging hopper is fixedly communicated with a discharging pipe. The feeding assembly is arranged on one side of the outer portion of the screening frame, a screening assembly is arranged above the screening frame, and the feeding assembly comprises a pair of fixing columns which are arranged at the positions, close to the supporting columns, of the outer portion of the screening frame; the effect of improving the gravel screening efficiency is achieved, gravel is driven to fall to the top end of the screen through mutual cooperation of the first motor, the rotating shaft and the auger piece, the gravel moves downwards along the surface of the screen under the action of gravity, gravel accumulation is avoided, and then gravel screening efficiency is improved through mutual cooperation of the second motor, the connecting shaft and the cam. And the bottom end of the screen is driven to vibrate through the transmission plate, and the problem that the gravel screening efficiency is difficult to effectively improve is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a construction sand and gravel screening device. Background Art

[0002] A construction project refers to an engineering entity formed through the construction of various types of buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. It is an engineering project that meets people's needs for production, residence, study, and public activities. Construction sand and gravel are the main construction materials. Construction sand and gravel need to be screened before use, and a sand and gravel screening device is required.

[0003] After searching, the Chinese patent with publication number CN218282545U discloses a construction sand and gravel screening device, including an installation platform, a collection component is fixedly connected to the middle position of the upper surface of the installation platform, a clamping component A is fixedly connected to the side of the upper surface of the installation platform close to the collection component, and a clamping component B is fixedly connected to the other side of the upper surface of the installation platform close to the collection component.

[0004] The device is equipped with a collection component, a material shaking component, a retractable cover and a filter screen. When in use, the staff can first pour the sand and gravel into the filter cartridge for the first filtration. The filtered sand and gravel fall into the retractable cover for the second filtration. Then the servo motor is turned on. The output end of the servo motor drives the connecting rod to rotate, thereby driving the filter cartridge to rotate, thereby throwing out the sand and gravel stuck in the gaps in the filter cartridge, avoiding the sand and gravel being stuck in the gaps in the filter cartridge and affecting the filtration efficiency.

[0005] However, the device still has the following problems: the device performs double screening of sand and gravel through the cooperation between the filter cartridge and the filter screen arranged inside the installation barrel, and the sand and gravel accumulate inside the installation barrel. The upper layer of sand and gravel takes a long time to pass through the filter cartridge and the filter screen. The simple rotation of the filter cartridge is difficult to effectively improve the efficiency of sand and gravel screening. Utility Model Content

[0006] (1) Technical problems solved

[0007] In view of the shortcomings of the existing technology, the utility model provides a construction sand and gravel screening device, which solves the above-mentioned problem that it is difficult to effectively improve the efficiency of sand and gravel screening.

[0008] (2) Technical solution

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a construction sand and gravel screening device, comprising a screening frame, wherein the bottom corners of the screening frame are fixedly connected to support columns, the bottom end of the screening frame is fixedly connected to a discharge hopper, the bottom end of the discharge hopper is fixedly connected to a discharge pipe, and further comprising a feeding assembly arranged on one side of the outside of the screening frame, and a screening assembly is arranged above the screening frame;

[0010] The loading assembly includes a pair of fixed columns arranged on the outside of the screening frame near the support column, a fixed seat is provided on the outside of the screening frame away from the fixed column, one end of the pair of fixed columns is commonly fixedly connected to a connecting ring 1, the top of the fixed seat is fixedly connected to a connecting ring 2, one end of the connecting ring 1 and one end of the connecting ring 2 are commonly fixedly connected to a conveying cylinder, one end of the conveying cylinder is rotatably connected to a rotating shaft, the outer peripheral wall of the rotating shaft is fixedly connected to a dragon piece, the inner bottom of the fixed seat is fixedly connected to a motor 1, and the output shaft of the motor 1 is fixedly connected to one end of the rotating shaft, one side of the outer peripheral wall of the conveying cylinder is fixedly connected to a feed hopper, the outer peripheral wall of the conveying cylinder is fixedly connected to a discharge pipe near the connecting ring, and the bottom end of the discharge pipe is fixedly connected to a discharge hopper.

[0011] Preferably, a material receiving box is fixedly connected to one side of the outer wall of the screening frame, a trapezoidal block is fixedly connected to the inner bottom of the material receiving box, one end of the material receiving box is fixedly connected to a conveying pipe, and the bottom end of the conveying pipe is fixedly connected to the conveying cylinder.

[0012] Preferably, the screening assembly includes a screen hinged to the top of the inner wall of the screening frame, and the bottom end of the screen abuts against one side of the top of the screening frame, and one end of the screening frame is rotatably connected to a connecting shaft.

[0013] Preferably, a support seat is fixedly connected to the outer wall of the screening frame near the connecting shaft, the top of the support seat is fixedly connected to motor 2, and the output shaft of motor 2 is fixedly connected to one end of the connecting shaft.

[0014] Preferably, a pair of transmission plates are fixedly connected to both sides of the outer wall of the bottom end of the screen, and a pair of cams adapted to the transmission plates are fixedly connected to the outer peripheral wall of the connecting shaft near the screening frame.

[0015] (3) Beneficial effects

[0016] 1. The construction sand and gravel screening device drives the sand and gravel to fall on the top of the screen through the mutual cooperation between the motor 1, the rotating shaft and the dragon piece. The sand and gravel are affected by gravity and move downward along the surface of the screen to avoid sand and gravel accumulation and affect the screening efficiency. Then, through the mutual cooperation between the motor 2, the connecting shaft and the cam, the transmission plate is cyclically resisted, and the bottom end of the screen is driven to vibrate through the transmission plate, so as to improve the efficiency of sand and gravel screening.

[0017] 2. The construction sand and gravel screening device is practical, efficient and cleverly designed. Through the cooperation between the receiving box, trapezoidal blocks and conveying pipe, the unscreened sand and gravel enter the conveying cylinder for the second time, and then through the cooperation between the rotating shaft and the dragon piece, it is screened for the second time, which effectively improves the efficiency and quality of sand and gravel screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first perspective;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0020] Figure 3 This is a schematic diagram of a half-cutaway three-dimensional structure of some components of the present invention;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of part of the screening component of the present invention.

[0022] In the figure: 1. Screening frame; 2. Support column; 3. Screen; 4. Fixed column; 5. Fixed seat; 6. Connecting ring 1; 7. Connecting ring 2; 8. Conveying cylinder; 9. Rotating shaft; 10. Dragon plate; 11. Motor 1; 12. Feed hopper; 13. Connecting shaft; 14. Support seat; 15. Motor 2; 16. Cam; 17. Transmission plate; 18. Material receiving box; 19. Trapezoidal block; 20. Conveying pipe; 21. Discharge hopper; 22. Discharge pipe; 23. Discharge pipe; 24. Discharge hopper. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example: Figure 1 As shown, a construction sand and gravel screening device includes a screening frame 1, wherein the screening frame 1 is made of a composite metal material to enhance the overall structural strength of the device, the bottom corners of the screening frame 1 are fixedly connected to support columns 2 by welding, the bottom end of the screening frame 1 is fixedly connected to a discharge hopper 21, and the bottom end of the discharge hopper 21 is fixedly connected to a discharge pipe 22, wherein a control valve is provided at one end of the discharge pipe 22 to facilitate control of the discharge rate, and also includes a feeding assembly arranged on one side of the outside of the screening frame 1, and a screening assembly is provided above the screening frame 1.

[0025] like Figure 3 and Figure 4 As shown, in a certain embodiment, in order to improve the screening efficiency, the screening assembly includes a screen 3 hinged to the top of the inner wall of the screening frame 1, and the bottom end of the screen 3 is in contact with the top side of the screening frame 1, wherein the screen 3 is arranged above the discharge hopper 21 in an inclined state, so that large particles of sand and gravel can roll down to the bottom end of the screen 3 to avoid affecting the efficiency of sand and gravel screening. One end of the screening frame 1 is rotatably connected to a connecting shaft 13, and the outer wall of the screening frame 1 is fixedly connected to a support seat 14 near the connecting shaft 13. The top of the support seat 14 is fixedly connected to a motor 2 15, and the motor The output shaft of machine 2 15 is fixedly connected to one end of the connecting shaft 13, wherein motor 2 15 drives the connecting shaft 13 to rotate. A pair of transmission plates 17 are fixedly connected to both sides of the outer wall of the bottom end of the screen 3. A pair of cams 16 adapted to the transmission plate 17 are fixedly connected to the outer peripheral wall of the connecting shaft 13 near the screening frame 1. Through the mutual cooperation between the connecting shaft 13 and the cam 16, the transmission plate 17 is cyclically contacted, so that the transmission plate 17 drives the bottom end of the screen 3 to vibrate, further improving the efficiency of sand and gravel screening, and at the same time, large particles of sand and gravel at the bottom of the screen 3 are ejected.

[0026] like Figure 1-Figure 3As shown, in a certain embodiment, in order to improve the efficiency of sand and gravel screening, the feeding assembly includes a pair of fixed columns 4 arranged on the outside of the screening frame 1 near the support column 2, and a fixed seat 5 is provided on the outside of the screening frame 1 away from the fixed column 4. One end of the pair of fixed columns 4 is fixedly connected to a connecting ring 1 6 by welding, and the top of the fixed seat 5 is fixedly connected to a connecting ring 2 7. One end of the connecting ring 1 6 and one end of the connecting ring 2 7 are fixedly connected to a conveying cylinder 8. One end of the conveying cylinder 8 is rotatably connected to a rotating shaft 9 through a bearing, and the outer peripheral wall of the rotating shaft 9 is fixedly connected to a dragon piece 10. The mutual cooperation between the rotating shaft 9 and the dragon piece 10 facilitates the conveying of sand and gravel to the top of the conveying cylinder 8. The inner bottom of the fixed seat 5 is fixedly connected to a motor 11, and the output shaft of the motor 11 is fixedly connected to one end of the rotating shaft 9, wherein the motor 11 drives the rotating shaft 9 to rotate. The feeding hopper 12 is fixedly connected to one side of the outer peripheral wall of the conveying cylinder 8, and the outer peripheral wall of the conveying cylinder 8 is fixedly connected to a discharge pipe 23 near the connecting ring 6, and the bottom end of the discharge pipe 23 is fixedly connected to the discharge hopper 24, so that the sand and gravel at the top of the conveying cylinder 8 can fall onto the top of the screen 3 through the mutual cooperation between the discharge pipe 23 and the discharge hopper 24. The outer wall of the screening frame 1 is fixedly connected to a receiving box 18 on one side, and the inner bottom of the receiving box 18 is fixedly connected to a trapezoidal block 19, and one end of the receiving box 18 is fixedly connected to a conveying pipe 20, wherein the trapezoidal block 19 plays a role in facilitating the movement of sand and gravel into the interior of the conveying pipe 20, and the bottom end of the conveying pipe 20 is fixedly connected to the conveying cylinder 8, and the sand and gravel enter the interior of the conveying cylinder 8 through the mutual cooperation between the receiving box 18, the trapezoidal block 19 and the conveying pipe 20, and is then conveyed to the top of the screen 3 for secondary screening through the mutual cooperation between the rotating shaft 9 and the dragon sheet 10.

[0027] Working principle: When in use, first, the sand and gravel are injected into the feed hopper 12 through the transfer device, and then the sand and gravel enter the conveying cylinder 8, and then the motor 11 is started, and the rotating shaft 9 is driven to rotate by the motor 11, and then the rotating shaft 9 and the dragon piece 10 cooperate with each other to make the sand and gravel move to the discharge pipe 23, and the discharge pipe 23 and the discharge hopper 24 cooperate with each other to make the sand and gravel fall on the top of the screen 3. The sand and gravel are affected by gravity and move downward along the surface of the screen 3 to avoid sand and gravel accumulation and affect the screening efficiency. Sand and gravel that meet the composite requirements are screened out, and large particles of sand and gravel that cannot be screened move to the bottom of the screen 3. Then start motor 2 15, and drive the connecting shaft 13 to rotate through motor 2 15, and then the connecting shaft 13 drives a pair of cams 16 to rotate and resist the transmission plate 17, and drives the bottom end of the screen 3 to vibrate through a pair of transmission plates 17, so as to improve the efficiency of sand and gravel screening. At the same time, the unscreened sand and gravel at the bottom of the screen 3 are ejected, and through the mutual cooperation between the receiving box 18, the trapezoidal block 19 and the conveying pipe 20, the unscreened sand and gravel enter the conveying cylinder 8 for the second time, and then through the mutual cooperation between the rotating shaft 9 and the dragon piece 10, fall on the surface of the screen 3 for the second time, and are screened for the second time, which effectively improves the efficiency and quality of sand and gravel screening.

[0028] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction sand and gravel screening device, comprising a screening frame (1), wherein the bottom corners of the screening frame (1) are fixedly connected to support columns (2), the bottom end of the screening frame (1) is fixedly connected to a discharge hopper (21), and the bottom end of the discharge hopper (21) is fixedly connected to a discharge pipe (22), characterized in that: It also includes a feeding assembly arranged on one side of the outside of the screening frame (1), and a screening assembly is arranged above the screening frame (1); The feeding assembly comprises a pair of fixed columns (4) arranged outside the screening frame (1) near the support column (2), a fixed seat (5) is arranged outside the screening frame (1) away from the fixed columns (4), one end of the pair of fixed columns (4) is fixedly connected to a connecting ring 1 (6), the top of the fixed seat (5) is fixedly connected to a connecting ring 2 (7), one end of the connecting ring 1 (6) and one end of the connecting ring 2 (7) are fixedly connected to a conveying cylinder (8), and one end of the conveying cylinder (8) is rotatably connected to the conveying cylinder (8). There is a rotating shaft (9), the outer peripheral wall of the rotating shaft (9) is fixedly connected to a dragon piece (10), the inner bottom of the fixed seat (5) is fixedly connected to a motor (11), and the output shaft of the motor (11) is fixedly connected to one end of the rotating shaft (9), one side of the outer peripheral wall of the conveying cylinder (8) is fixedly connected to a feed hopper (12), the outer peripheral wall of the conveying cylinder (8) is fixedly connected to a discharge pipe (23) near the connecting ring (6), and the bottom end of the discharge pipe (23) is fixedly connected to a discharge hopper (24).

2. A construction sand and gravel screening device according to claim 1, characterized in that: A material receiving box (18) is fixedly connected to one side of the outer wall of the screening frame (1), a trapezoidal block (19) is fixedly connected to the inner bottom of the material receiving box (18), one end of the material receiving box (18) is fixedly connected to a conveying pipe (20), and the bottom end of the conveying pipe (20) is fixedly connected to the conveying cylinder (8).

3. A construction sand and gravel screening device according to claim 1, characterized in that: The screening assembly comprises a screen (3) hinged to the top of the inner wall of the screening frame (1), and the bottom end of the screen (3) abuts against one side of the top of the screening frame (1); one end of the screening frame (1) is rotatably connected to a connecting shaft (13).

4. A construction sand and gravel screening device according to claim 3, characterized in that: A support base (14) is fixedly connected to the outer wall of the screening frame (1) near the connecting shaft (13), a top end of the support base (14) is fixedly connected to a second motor (15), and an output shaft of the second motor (15) is fixedly connected to one end of the connecting shaft (13).

5. A construction sand and gravel screening device according to claim 4, characterized in that: A pair of transmission plates (17) are fixedly connected to both sides of the outer wall of the bottom end of the screen (3), and a pair of cams (16) adapted to the transmission plates (17) are fixedly connected to the outer peripheral wall of the connecting shaft (13) near the screening frame (1).

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