Sand screening machine for constructional engineering

Abstract

The utility model relates to the technical field of constructional engineering, and discloses a constructional engineering sand screening machine which comprises a screening box, supporting columns are fixedly connected to the corners of the bottom of the screening box, the sand screening machine further comprises a feeding assembly and a screening assembly which are arranged outside the screening box, and the feeding assembly comprises a fixing base arranged on one side of the exterior of the screening box; a fixing frame is arranged at the position, close to the screening box, of the outer portion of the fixing base, a fixing ring is fixedly connected to the top end of the fixing base, and a feeding pipe is jointly and fixedly connected to one end of the fixing ring and one end of the fixing frame. According to the sand screening device, the effect of improving the sand screening efficiency of the device is achieved, sand grains enter the feeding pipe for the second time through mutual cooperation of a recycling box, a recycling pipe and a recycling plate, then the sand grains move to the screen for the second time through mutual cooperation of feeding assemblies, the sand grains are screened for the second time, workers do not need to feed the sand repeatedly, and the labor intensity of workers is reduced. The problem that the sand screening efficiency of the device is difficult to effectively improve is solved.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically a sand screening machine for building engineering. Background Technology

[0002] With urban development and rural construction, building engineering technology is constantly improving. The most important part of construction is concrete building construction, and the main material used in concrete building construction is sand. Sand contains a large number of stones and larger stones. These impurities need to be filtered to avoid affecting the filtration of concrete.

[0003] A search revealed Chinese patent CN219723632U, which discloses a sand screening machine for construction engineering, including a protective shell, wheels, a mounting base, a servo motor, and pulleys. Wheels are rotatably mounted on both the left and right sides of the lower part of the protective shell, and a mounting base is located on the left side of the middle part of the protective shell. A servo motor is mounted in the middle of the mounting base, and a pulley is connected to the output shaft of the servo motor.

[0004] The device works by having sand fall into a collection box, which then moves a buffer plate downwards, causing the buffer plate to touch a start switch. This triggers a buzzer, prompting staff to clean the sand and prevent excessive sand from affecting the filtration effect.

[0005] However, the device still has the following problems. The device uses the interaction between the first screen plate and the second baffle to retain large sand particles at the second baffle. When a large amount of large sand particles are retained, the second baffle is rotated to allow the large sand particles to flow out. However, in actual use, both large and small particles are present in the sand particles retained at the second baffle. It is necessary for the staff to repeatedly add sand for secondary filtration to improve the utilization rate of sand particles. However, the device lacks a corresponding secondary feeding component, making it difficult to effectively improve the sand screening efficiency of the device. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a sand screening machine for construction engineering, which solves the problem of the above-mentioned difficulty in effectively improving the sand screening efficiency of the device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a sand screening machine for construction engineering, including a screening box, wherein support columns are fixedly connected to the bottom corners of the screening box, and further including a feeding component and a screening component disposed outside the screening box;

[0008] The feeding assembly includes a fixed base located on one side of the outside of the screening box. A fixed frame is located near the screening box on the outside of the fixed base. A fixed ring is fixedly connected to the top of the fixed base. One end of the fixed ring and one end of the fixed frame are fixedly connected to a feeding pipe. A motor is fixedly connected to one side of the top of the fixed base. A auger rod is rotatably connected inside the feeding pipe, and one end of the auger rod is fixedly connected to the output shaft of the motor. One end of the feeding pipe is fixedly connected to a feed hopper, and the other end of the feeding pipe is fixedly connected to a feeding hopper. A recovery box is fixedly connected to one side of the outer wall of the screening box. A recovery pipe is fixedly connected to one end of the recovery box, and one end of the recovery pipe is fixedly connected to the feeding pipe. A recovery plate is slidably connected to the inner wall of the recovery box. A motor is fixedly connected to one side of the outer wall of the recovery box. A rotating disk is fixedly connected to the output shaft of the motor. A connecting rod is fixedly connected to one side of the top of the rotating disk. A connecting seat is fixedly connected to one end of the recovery plate. A transmission rod is rotatably connected to one end of the connecting seat via a rotating shaft, and one end of the transmission rod is rotatably connected to the top of the connecting rod.

[0009] Preferably, the recycling tube is inclined toward the fixed base.

[0010] Preferably, the screening assembly includes a screen hinged to the top of the screening box, the bottom of the screening box is fixedly connected to a discharge hopper, and a control valve is provided at one end of the discharge hopper.

[0011] Preferably, a second motor is fixedly connected to one side of the outer wall of the screening box.

[0012] Preferably, a drive shaft is rotatably connected to the top of the screening box near the second motor, and one end of the drive shaft is fixedly connected to the output shaft of the second motor.

[0013] Preferably, a pair of cams adapted to the screen are fixedly connected to both sides of the outer peripheral wall of the drive shaft.

[0014] This sand screening machine for construction projects uses the cooperation between the recycling box, recycling pipe, and recycling plate to allow sand particles to re-enter the feeding pipe. Then, through the cooperation between the feeding components, the sand particles move to the screen for secondary screening. This eliminates the need for workers to repeatedly feed sand, effectively improving the sand screening efficiency of the device.

[0015] This sand screening machine for construction projects is practical, efficient, and ingeniously designed. Through the cooperation between the motor, the rotating disc, and the connecting rod 22, the transmission rod is driven to reciprocate. Then, through the cooperation between the transmission rod and the connecting seat, the recovery plate is driven to reciprocate along the inner wall of the recovery box, increasing the rate at which sand particles re-enter the feeding pipe and further improving the overall sand screening efficiency. Attached Figure Description

[0016] Figure 1This is a first-view three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a half-section three-dimensional structural diagram of some components of this utility model;

[0018] Figure 3 This is a half-sectional three-dimensional structural diagram of a portion of the screening component of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of part of the feeding component of this utility model.

[0020] In the diagram: 1. Screening box; 2. Support column; 3. Fixed seat; 4. Fixed frame; 5. Fixed ring; 6. Feeding pipe; 7. Motor 1; 8. Auger rod; 9. Feed hopper; 10. Feeding hopper; 11. Screen; 12. Discharge hopper; 13. Control valve; 14. Recycling box; 15. Recycling pipe; 16. Recycling plate; 17. Motor 2; 18. Drive shaft; 19. Cam; 20. Motor 3; 21. Rotating disc; 22. Connecting rod; 23. Connecting seat; 24. Drive rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Figure 1 As shown, a sand screening machine for construction engineering includes a screening box 1, which is made of high-strength alloy material to improve the overall structural strength of the device. Support columns 2 are fixedly connected to the bottom corners of the screening box 1 by welding. The support columns 2 serve to fix and support the screening box 1. The machine also includes a feeding component and a screening component set outside the screening box 1.

[0023] like Figures 2-4As shown, in one embodiment, to improve screening efficiency, the feeding assembly includes a fixed base 3 disposed on one side of the outside of the screening box 1. A fixed frame 4 is disposed on the outside of the fixed base 3 near the screening box 1. A fixed ring 5 is fixedly connected to the top of the fixed base 3. One end of the fixed ring 5 and one end of the fixed frame 4 are jointly fixedly connected to a feeding pipe 6. The cooperation between the fixed base 3, the fixed frame 4, and the fixed ring 5 facilitates the fixing of the feeding pipe 6. A motor 7 is fixedly connected to one side of the top of the fixed base 3. The feeding pipe 6... The internal rotating part of the sieve box 1 is connected to a auger rod 8, and one end of the auger rod 8 is fixedly connected to the output shaft of the motor 7. Through the cooperation between the motor 7 and the auger rod 8, sand particles are easily conveyed into the feeding hopper 10. One end of the feeding pipe 6 is fixedly connected to the feed hopper 9, and the other end of the feeding pipe 6 is fixedly connected to the feeding hopper 10. A recovery box 14 is fixedly connected to one side of the outer wall of the screening box 1. One end of the recovery box 14 is fixedly connected to a recovery pipe 15, and one end of the recovery pipe 15 is fixedly connected to the feeding pipe 6. The feed pipe 15 is inclined towards the fixed base 3. Through the cooperation between the recovery pipe 15, the recovery box 14, and the recovery plate 16, the unscreened sand particles are allowed to re-enter the feed pipe 6 for secondary screening, eliminating the need for repeated feeding by the operator and effectively improving the sand screening efficiency of the device. The recovery plate 16 is slidably connected to the inner wall of the recovery box 14, and a motor 20 is fixedly connected to one side of the outer wall of the recovery box 14. The output shaft of the motor 20 is fixedly connected to a rotating disk 21, and a connecting rod 22 is fixedly connected to the top side of the rotating disk 21. One end of the recycling plate 16 is fixedly connected to a connecting seat 23. One end of the connecting seat 23 is rotatably connected to a transmission rod 24 via a rotating shaft. One end of the transmission rod 24 is rotatably connected to the top end of the connecting rod 22. Through the mutual cooperation between the motor 20, the rotating disk 21, and the connecting rod 22, the transmission rod 24 is driven to reciprocate. Then, through the mutual cooperation between the transmission rod 24 and the connecting seat 23, the recycling plate 16 is driven to reciprocate, thereby improving the efficiency of sand particles entering the recycling pipe 15 in the recycling box 14 and further improving the overall sand screening efficiency.

[0024] like Figure 2 and Figure 3As shown, in one embodiment, in order to improve the sand sieving efficiency, the screening assembly includes a screen 11 hinged to the top of the screening box 1. The bottom end of the screening box 1 is fixedly connected to a discharge hopper 12, and a control valve 13 is provided at one end of the discharge hopper 12. A motor 17 is fixedly connected to one side of the outer wall of the screening box 1. A transmission shaft 18 is rotatably connected to the top of the screening box 1 near the motor 17, and one end of the transmission shaft 18 is fixedly connected to the output shaft of the motor 17. A pair of cams 19 adapted to the screen 11 are fixedly connected to both sides of the outer peripheral wall of the transmission shaft 18. Through the mutual cooperation between the motor 17, the transmission shaft 18, and the cams 19, the screen 11 is driven to vibrate back and forth, thereby improving the sand sieving efficiency.

[0025] Working principle: In operation, sand is first fed into the feeding pipe 6 through the feed hopper 9. Then, through the interaction between motor 7 and the auger rod 8, the sand is conveyed into the feeding hopper 10. The sand then falls from the bottom of the feeding hopper 10 onto the surface of the screen 11, where it is screened. Then, motor 17 is started. Through the interaction between motor 17, the drive shaft 18, and the cam 19, the screen 11 vibrates reciprocally, improving the screening efficiency. Sand that does not pass through the screen 11 slides into the recovery box 14, and is then discharged through the recovery box 14. The interaction between the receiving pipe 15 and the recovery plate 16 allows the sand to enter the feeding pipe 6 a second time for secondary screening, eliminating the need for repeated sand feeding by staff and effectively improving the screening efficiency of the device. At the same time, the motor 20 is started. Through the interaction between the motor 20, the rotating disk 21, and the connecting rod 22, the transmission rod 24 is driven to reciprocate. Then, through the interaction between the transmission rod 24 and the connecting seat 23, the recovery plate 16 is driven to reciprocate along the inner wall of the recovery box 14, increasing the rate at which the sand enters the feeding pipe 6 a second time and further improving the overall screening efficiency.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sand screening machine for construction engineering, comprising a screening box (1), support columns (2) are fixedly connected at the bottom corners of the screening box (1), characterized in that: It also includes the feeding assembly and the screening assembly arranged outside the screening box (1); The feeding assembly comprises a fixed seat (3) arranged at one side outside the screening box (1), a fixed frame (4) is arranged outside the fixed seat (3) close to the screening box (1), a fixed ring (5) is fixedly connected to the top end of the fixed seat (3), one end of the fixed ring (5) and one end of the fixed frame (4) are fixedly connected with a feeding pipe (6), a motor one (7) is fixedly connected to one side of the top of the fixed seat (3), a Jiaolong rod (8) is rotatably connected in the feeding pipe (6), one end of the Jiaolong rod (8) is fixedly connected with the output shaft of the motor one (7), one end of the feeding pipe (6) is fixedly communicated with a feeding hopper (9), the other end of the feeding pipe (6) is fixedly communicated with a feeding hopper (10), a recycling box (14) is fixedly connected to one side of the outer wall of the screening box (1), one end of the recycling box (14) is fixedly communicated with a recycling pipe (15), and one end of the recycling pipe (15) is fixedly communicated with the feeding pipe (6), a recycling plate (16) is slidably connected to the inner wall of the recycling box (14), a motor three (20) is fixedly connected to one side of the outer wall of the recycling box (14), the output shaft of the motor three (20) is fixedly connected with a rotating disc (21), one side of the top of the rotating disc (21) is fixedly connected with a connecting rod (22), one end of the recycling plate (16) is fixedly connected with a connecting seat (23), one end of the connecting seat (23) is rotatably connected with a transmission rod (24) through a rotating shaft, and one end of the transmission rod (24) is rotatably connected with the top end of the connecting rod (22).

2. A sand screening machine for construction work as claimed in claim 1 wherein: The recycling pipe (15) is inclinedly arranged towards the fixed seat (3).

3. A sand screening machine for construction work as claimed in claim 1 wherein: The screening assembly comprises a screen (11) hinged to the top end of the screening box (1), the bottom end of the screening box (1) is fixedly communicated with a discharge hopper (12), and one end of the discharge hopper (12) is provided with a control valve (13).

4. A sand screening machine for construction work as claimed in claim 3 wherein: The outer wall of the screening box (1) is fixedly connected with a motor two (17).

5. A sand screening machine for construction work as claimed in claim 4 wherein: The top of the screening box (1) is rotatably connected with a transmission shaft (18) close to the motor two (17), and one end of the transmission shaft (18) is fixedly connected with the output shaft of the motor two (17).

6. A sand screening machine for construction work as claimed in claim 5 wherein: A pair of cams (19) matched with the screen (11) are fixedly connected to the outer circumferential wall of the transmission shaft (18).

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