Sand screening machine for constructional engineering

Abstract

The utility model belongs to the technical field of sand screening machines, and particularly relates to a sand screening machine for constructional engineering, which comprises a screening frame. The middle part of the screen frame is fixedly connected with a connecting plate; a plurality of groups of racks are arranged in the middle of the connecting plate; a first motor is fixedly connected to the middle of the screen frame; the output end of the first motor is fixedly connected with a half gear; the half gear is in meshed connection with the rack; a plurality of groups of connecting rods are slidably connected to the middle of the screen frame; the end part of the connecting rod is fixedly connected with a positioning frame; a sieve plate is fixedly connected to the middle of the positioning frame; the end part of the connecting rod is fixedly connected with a limiting pad; the middle part of the limiting pad is fixedly connected with a small spring; the small spring is in sliding connection with the screen frame; in the step, the to-be-filtered sand can be continuously shaken in the middle of the sieve plate by continuously shaking the sieve plate, so that the condition that the sand is accumulated in the middle of the sieve plate can be reduced, and meanwhile, the sand filtering efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand screening machines, in particular to a sand screening machine for construction engineering. Background Art

[0002] When building a house, concrete is often needed to construct the main body of the house. One of the main materials of concrete is sand, but sand generally contains a small amount of soil. When the soil content is too much, it will have a certain impact on the quality of the concrete.

[0003] When removing the soil in the sand, the sand can be placed in a sand screen to filter the soil in the sand. At this time, the sand screen can be fixed at the construction location first, and then the sand is placed on the surface of the screen, and the soil will remain on the screen.

[0004] When using a screen to filter the soil in the sand, the sand will accumulate in the middle of the screen. As the working time continues to increase, it will have a certain impact on the screening of the sand; therefore, in order to solve the above problem, a sand screening machine for construction engineering is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model provides a sand screening machine for construction engineering.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model is a sand screening machine for construction engineering, comprising a screen frame; a connecting plate is fixedly connected to the middle of the screen frame; a plurality of racks are arranged in the middle of the connecting plate; a first motor is fixedly connected to the middle of the screen frame; a half gear is fixedly connected to the output end of the first motor; the half gear is meshingly connected to the rack; a plurality of connecting rods are slidably connected to the middle of the screen frame; a positioning frame is fixedly connected to the end of the connecting rod; a screen plate is fixedly connected to the middle of the positioning frame; a limiting pad is fixedly connected to the end of the connecting rod; a small spring is fixedly connected to the middle of the limiting pad; the small spring is slidably connected to the screen frame.

[0007] Preferably, a second motor is fixedly connected to the middle of the positioning frame; the output end of the second motor is rotatably connected to a conveyor belt; the middle of the conveyor belt is rotatably connected to a rotating rod; the rotating rod is rotatably connected to the screen frame; and a plurality of push plates are fixedly connected to the middle of the conveyor belt.

[0008] Preferably, a slide groove is provided in the middle of the positioning frame; a scraper is slidably connected to the middle of the slide groove; a pull rope is fixedly connected to the middle of the scraper; and a pull ring is fixedly connected to the end of the pull rope.

[0009] Preferably, a straight rod is fixedly connected to the middle of the screen frame; a circular ring is fixedly connected to the end of the straight rod; and the circular ring is slidably connected to the pull rope.

[0010] Preferably, a torsion spring is rotatably connected to the middle of the screen frame; and a baffle is rotatably connected to the middle of the torsion spring.

[0011] Preferably, a rubber pad is fixedly connected to the middle portion of the connecting rod.

[0012] Preferably, a fence is fixedly connected to the middle of the screen frame.

[0013] The utility model is beneficial in that:

[0014] 1. The utility model discloses a sand screening machine for construction projects. In this step, the sieve plate is continuously shaken, so that the sand to be filtered is continuously shaken in the middle of the sieve plate, thereby reducing the accumulation of sand in the middle of the sieve plate and improving the filtering efficiency of the sand.

[0015] 2. The sand screening machine for construction projects described in the utility model can filter the sand by pushing the sand upward and left and right, so that the sand can be filtered multiple times in the middle of the sieve plate, thereby reducing the accumulation of sand in the middle of the sieve plate and improving the filtering efficiency of the sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional upward-looking structure of the utility model;

[0019] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;

[0020] Figure 4 for Figure 2 A magnified image of point A;

[0021] Figure 5 for Figure 3 Enlarged view of point B.

[0022] In the figure: 1. screen frame; 11. connecting plate; 12. rack; 13. first motor; 14. half gear; 15. connecting rod; 16. positioning frame; 17. limit pad; 18. screen plate; 19. small spring; 2. second motor; 21. conveyor belt; 22. rotating rod; 23. push plate; 3. slide; 31. scraper; 32. pull rope; 33. pull ring; 4. straight rod; 41. circular ring; 5. torsion spring; 51. baffle; 6. rubber pad; 7. fence. DETAILED DESCRIPTION

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

[0024] like Figure 1-5 As shown, a sand screening machine for construction engineering comprises a screen frame 1; a connecting plate 11 is fixedly connected to the middle of the screen frame 1; a plurality of racks 12 are provided in the middle of the connecting plate 11; a first motor 13 is fixedly connected to the middle of the screen frame 1; a half gear 14 is fixedly connected to the output end of the first motor 13; the half gear 14 is meshingly connected with the rack 12; a plurality of connecting rods 15 are slidably connected to the middle of the screen frame 1; a positioning frame 16 is fixedly connected to the end of the connecting rod 15; a screen plate 18 is fixedly connected to the middle of the positioning frame 16; a limiting pad 17 is fixedly connected to the end of the connecting rod 15; a small spring 19 is fixedly connected to the middle of the limiting pad 17; the small spring 19 is slidably connected to the screen frame 1; when working, when sand needs to be screened, During the operation, the first motor 13 can be operated, and the connecting plate 11 can be driven to move under the action of the half gear 14, so that the positioning frame 16 can be laterally shaken in the middle of the screen frame 1, and the cooperation between the half gear 14 and the small spring 19 can make the positioning frame 16 continuously shake left and right in the middle of the screen frame 1, and in the process of the shaking of the positioning frame 16, the connecting rod 15 can be made to the positioning frame 16, and the limiting pad 17 can limit the position of the positioning frame 16, and this step can be achieved by continuously shaking the sieve plate 18, so that the sand to be filtered can be continuously shaken in the middle of the sieve plate 18, and then the sand can be piled up in the middle of the sieve plate 18, and at the same time, the filtering efficiency of the sand can be improved.

[0025] like Figure 3-5As shown, a second motor 2 is fixedly connected to the middle of the positioning frame 16; a conveyor belt 21 is rotatably connected to the output end of the second motor 2; a rotating rod 22 is rotatably connected to the middle of the conveyor belt 21; the rotating rod 22 is rotatably connected to the screen frame 1; a plurality of push plates 23 are fixedly connected to the middle of the conveyor belt 21; when the screen plate 18 is used to filter the sand, the second motor 2 can be operated, and the push plate 23 can push the sand in the middle of the screen plate 18 to the top of the screen plate 18 under the left and right sides of the conveyor belt 21. This step can be used to filter the sand by pushing the sand upward to the left and right, so that the sand can be filtered multiple times in the middle of the screen plate 18, thereby reducing the accumulation of sand in the middle of the screen plate 18, thereby improving the filtering efficiency of the sand.

[0026] like Figure 2-4 As shown, a slide groove 3 is provided in the middle of the positioning frame 16; a scraper 31 is slidably connected to the middle of the slide groove 3; a pull rope 32 is fixedly connected to the middle of the scraper 31; a pull ring 33 is fixedly connected to the end of the pull rope 32; during operation, when filtering sand, the pull ring 33 causes the scraper 31 to slide inside the slide groove 3 through the action of the pull rope 32, and then the scraper 31 can be used to clean the bottom of the sieve plate 18. This step can reduce the clogging of the sieve plate 18 by mud in the sand through the cleaning effect of the scraper 31 on the bottom of the sieve plate 18, thereby improving the filtering efficiency of the sand.

[0027] like Figure 2-4 As shown, a straight rod 4 is fixedly connected to the middle of the screen frame 1; a circular ring 41 is fixedly connected to the end of the straight rod 4; the circular ring 41 is slidably connected to the pull rope 32; during operation, when the pull rope 32 is pulled, the pull rope 32 can be supported by the screen frame 1. This step can reduce the situation where the pull rope 32 is buried by the sand dropped from the middle of the screen plate 18 when it is necessary to pull the pull rope 32, thereby improving the cleaning efficiency of the bottom of the screen plate 18 and reducing the situation where the screen plate 18 is blocked.

[0028] like Figure 1-3 As shown, the middle part of the screen frame 1 is rotatably connected to a torsion spring 5; the middle part of the torsion spring 5 is rotatably connected to a baffle 51; during operation, when it is necessary to fill sand into the middle part of the screen plate 18, the baffle 51 can be rotated in the middle part of the screen frame 1 through the action of the torsion spring 5, so that the baffle 51 can be flush with the positioning frame 16. This step can reduce the difficulty of filling sand during the sand filtering process, thereby improving the filtering efficiency of the sand.

[0029] like Figure 3-5As shown, a rubber pad 6 is fixedly connected to the middle of the connecting rod 15; during operation, when the positioning frame 16 is shaken in the middle of the screen frame 1, the rubber pad 6 can be used to buffer the screen frame 1 and the positioning frame 16. This step can reduce the collision between the positioning frame 16 and the screen frame 1 when shaking, thereby protecting the positioning frame 16.

[0030] like Figure 1-3 As shown, a fence 7 is fixedly connected to the middle of the screen frame 1; during operation, when filtering sand, the fence 7 can be used to receive the sand at the bottom of the screen plate 18. This step can reduce the situation where the soil at the bottom of the screen plate 18 falls into the filtered sand.

[0031] Working principle: during operation, when the sand needs to be screened, the first motor 13 can be operated, and then the connecting plate 11 can be driven to move under the action of the half gear 14, so that the positioning frame 16 can be horizontally shaken in the middle of the screen frame 1. Through the cooperation between the half gear 14 and the small spring 19, the positioning frame 16 can be continuously shaken left and right in the middle of the screen frame 1. During the shaking of the positioning frame 16, the connecting rod 15 can be made to the positioning frame 16, and the limiting pad 17 can limit the position of the positioning frame 16. This step can be carried out by continuously shaking the screen plate 18, so that the sand to be filtered can be continuously shaken in the middle of the screen plate 18, and then The sand can be prevented from accumulating in the middle of the sieve plate 18, and the filtering efficiency of the sand can be improved. When the sieve plate 18 is used to filter the sand, the second motor 2 can be operated, and then the push plate 23 can push the sand in the middle of the sieve plate 18 to the top of the sieve plate 18 under the left and right sides of the conveyor belt 21. This step can be used to filter the sand by pushing the sand upward to the left and right sides, so that the sand can be filtered multiple times in the middle of the sieve plate 18, thereby reducing the accumulation of sand in the middle of the sieve plate 18, thereby improving the filtering efficiency of the sand. When filtering the sand, the pull ring 33 uses the pull rope 32 to make the scraper 31 move in the slide groove. 3 can slide inside, and then the scraper 31 can be used to clean the bottom of the sieve plate 18. This step can reduce the sieve plate 18 being blocked by mud in the sand by the scraper 31, thereby improving the sand filtering efficiency. When the pull rope 32 is pulled, the pull rope 32 can be supported by the screen frame 1. This step can reduce the pull rope 32 being buried by the sand falling from the middle of the sieve plate 18 when the pull rope 32 needs to be pulled, thereby improving the cleaning efficiency of the bottom of the sieve plate 18 and reducing the sieve plate 18 being blocked. When it is necessary to fill the middle of the sieve plate 18 with sand, the baffle can be used to 51 is rotated in the middle of the screen frame 1, so that the baffle 51 can be flush with the positioning frame 16. This step can reduce the difficulty of filling sand during the sand filtering process, thereby improving the filtering efficiency of the sand. When the positioning frame 16 is shaken in the middle of the screen frame 1, the rubber pad 6 can be used to buffer the screen frame 1 and the positioning frame 16. This step can reduce the collision between the positioning frame 16 and the screen frame 1 when shaking, and thus protect the positioning frame 16. When filtering the sand, the fence 7 can be used to receive the sand at the bottom of the screen plate 18. This step can reduce the soil at the bottom of the screen plate 18 from falling into the filtered sand.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A sand screening machine for construction engineering, comprising a screening frame (1); a connecting plate (11) is fixedly connected to the middle of the screening frame (1); the characteristics are: A plurality of racks (12) are provided in the middle of the connecting plate (11); a first motor (13) is fixedly connected to the middle of the screen frame (1); a half gear (14) is fixedly connected to the output end of the first motor (13); the half gear (14) is meshingly connected to the rack (12); a plurality of connecting rods (15) are slidably connected to the middle of the screen frame (1); a positioning frame (16) is fixedly connected to the end of the connecting rod (15); a screen plate (18) is fixedly connected to the middle of the positioning frame (16); a limiting pad (17) is fixedly connected to the middle of the limiting pad (17); and the small spring (19) is slidably connected to the screen frame (1).

2. A sand screening machine for construction engineering as claimed in claim 1, characterized in that: A second motor (2) is fixedly connected to the middle of the positioning frame (16); an output end of the second motor (2) is rotatably connected to a conveyor belt (21); a rotating rod (22) is rotatably connected to the middle of the conveyor belt (21); the rotating rod (22) is rotatably connected to the screen frame (1); and a plurality of push plates (23) are fixedly connected to the middle of the conveyor belt (21).

3. A sand screening machine for construction engineering as claimed in claim 1, characterized in that: A slide groove (3) is provided in the middle of the positioning frame (16); a scraper (31) is slidably connected to the middle of the slide groove (3); a pull rope (32) is fixedly connected to the middle of the scraper (31); and a pull ring (33) is fixedly connected to the end of the pull rope (32).

4. A sand screening machine for construction engineering as claimed in claim 3, characterized in that: A straight rod (4) is fixedly connected to the middle of the screen frame (1); a circular ring (41) is fixedly connected to the end of the straight rod (4); and the circular ring (41) is slidably connected to the pull rope (32).

5. A sand screening machine for construction engineering as claimed in claim 1, characterized in that: The middle part of the screen frame (1) is rotatably connected to a torsion spring (5); the middle part of the torsion spring (5) is rotatably connected to a baffle (51).

6. A sand screening machine for construction engineering as claimed in claim 1, characterized in that: A rubber pad (6) is fixedly connected to the middle portion of the connecting rod (15).

7. A sand screening machine for construction engineering as claimed in claim 1, characterized in that: A fence (7) is fixedly connected to the middle of the screen frame (1).

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