Sand screening machine for house building engineering

Abstract

The utility model relates to the technical field of constructional engineering, in particular to a sand screening machine for house constructional engineering, which comprises a base station, a first mounting frame and a second mounting frame are respectively and fixedly arranged at two ends of the base station, the first mounting frame and the second mounting frame are rotatably connected with a sand screening cylinder, and a feed port is arranged on the sand screening cylinder. A plurality of screening holes are evenly formed in the side wall of the sand screening barrel, a stirring sand screening mechanism is arranged in the sand screening barrel, and the stirring sand screening mechanism comprises a driving motor used for driving sand in the sand screening barrel to rotate and screening the sand out of the screening holes after stirring. Through the combined action of the driving motor, the connecting shaft, the connecting rod and the connecting ring, sand is rotationally screened along the inner wall of the sand screening cylinder, stone grains filtered by the sand screening cylinder downwards enter the collecting hopper through the discharging port along the inner wall of the sand screening cylinder under the action of gravity, the overall structure is small in occupied space, the sand screening efficiency is high, and the sand screening efficiency is high. And the screened fine sand and stone grains can be conveniently and respectively collected.

Description

Technical Field

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

[0002] The sand screening machine imitates the working principle of manually screening sand with an inclined screen. It adopts a flat roller screen to make the sand roll and slide repeatedly to fully disperse and separate. It is different from the inclined roller screen which causes large and small materials to push and bury each other, making the screening process hurried; it is also different from the inclined vibrating screen which causes large and small materials to vibrate and mix.

[0003] The prior art refers to a sand screening machine for construction projects disclosed in announcement number CN215029649U, which adopts a combination of main crushing bevel knives and auxiliary crushing teeth to achieve the technical effect of completely crushing large pieces of sand, and adopts an eccentric rotating elastic shaking method to achieve the technical effect of elastic shaking screening of sand, effectively solving the problems of poor effect of sand screening machines for construction projects on the market, complex structure and inconvenient maintenance.

[0004] The existing sand screening machine has a graded structure, occupies a large space, and only screens sand by shaking, which has a low efficiency. In addition, the sand used in construction projects usually contains stone particles, which will damage the crushing bevel knives and crushing teeth, and it is not convenient to collect the screened stone particles. Utility Model Content

[0005] The utility model aims to provide a sand screening machine for housing construction projects, which solves the problems in the prior art that the sand screening machine occupies a large space, only screens sand by shaking, has low efficiency, and is inconvenient to collect the screened stone particles.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A sand screening machine for housing construction projects comprises a base, a first mounting frame and a second mounting frame are fixedly arranged at both ends of the base, the first mounting frame and the second mounting frame are rotatably connected to a sand screening cylinder, a feed port is arranged on the sand screening cylinder, a plurality of sieve holes are evenly arranged on the side wall of the sand screening cylinder, a stirring and sand screening mechanism is arranged in the sand screening cylinder, the stirring and sand screening mechanism comprises a driving motor for driving the sand in the sand screening cylinder to rotate and screen out the sieve holes after stirring.

[0008] The base is fixed with a connecting mounting frame, the driving motor is fixed on the connecting mounting frame, the first mounting frame is higher than the second mounting frame, and the sand screening cylinder is arranged in an inclined manner.

[0009] The stirring and sand screening mechanism also includes a connecting shaft and a discharge port. The connecting shaft is coaxially fixed to the sand screening cylinder, and the output end of the driving motor is coaxially fixed to the connecting shaft. Multiple groups of connecting rods are distributed on the side wall of the connecting shaft in a circular array, and the end of the connecting rod away from the connecting shaft is fixed to a connecting ring. Multiple connecting rings are coaxially arranged on the inner wall of the sand screening cylinder; the discharge port is arranged at the end of the sand screening cylinder away from the driving motor.

[0010] Preferably, the ends of the plurality of groups of connecting rods close to the feed inlet are provided with edges for stirring and cutting agglomerated sand.

[0011] Preferably, a first rectangular through hole and a second rectangular through hole are respectively provided on the base, a sand collecting hopper and a material collecting hopper are respectively provided below the first rectangular through hole and the second rectangular through hole, the sand collecting hopper is made of metal iron, the material collecting hopper is provided below the discharge port, and the sand collecting hopper is provided below the multiple sieve holes.

[0012] Preferably, a filter screen is arranged in the sand collecting hopper, the filter screen is placed obliquely, and one end of the filter screen is connected to the sand collecting hopper through a spring, and a third rectangular through hole is arranged at the other end of the filter screen connected to the sand collecting hopper, and the third rectangular through hole is located on the sand collecting hopper.

[0013] Preferably, a stopper larger than the third rectangle is provided on one side of the outer wall of the sand collecting hopper, a hinge is fixed on one side of the outer wall of the sand collecting hopper, and the stopper is connected to the sand collecting hopper through a hinge, a pressure sensor is provided on a side of the stopper facing the sand collecting hopper, and an electromagnetic block is provided on one side of the pressure sensor.

[0014] Preferably, a plurality of support legs for supporting the base are provided at the bottom of the base.

[0015] The beneficial effects of the utility model are:

[0016] Through the combined action of the driving motor, connecting shaft, connecting rod and connecting ring, the sand is rotated and screened along the inner wall of the sand screening drum, and the agglomerated sand is fully dispersed after being stirred and cut by the connecting rod and rubbed against the inner wall of the sand screening drum. The stone particles retained by the sand screening drum flow downward along the inner wall of the sand screening drum through the discharge port into the collecting hopper under the action of gravity. The overall structural setting occupies a small space and has a high sand screening efficiency, which is convenient for collecting the screened fine sand and stone particles separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a sand screening machine for housing construction engineering proposed by the utility model;

[0018] Figure 2 This is a front view of a sand screening machine for housing construction engineering proposed by the utility model;

[0019] Figure 3This is a top view of a sand screening machine for housing construction engineering proposed by the utility model;

[0020] Figure 4 This is a schematic diagram of a mixing and screening sand mechanism of a sand screening machine for housing construction engineering proposed by the utility model;

[0021] Figure 5 This is a schematic top view of a sand collecting hopper of a sand screening machine for housing construction engineering proposed by the utility model;

[0022] Figure 6 The utility model is a schematic diagram of a stopper of a sand screening machine for housing construction engineering.

[0023] In the figure: 1. base; 2. first mounting frame; 3. second mounting frame; 4. sand screening cylinder; 5. feed inlet; 6. sieve hole; 7. connecting mounting frame; 8. driving motor; 9. connecting shaft; 10. connecting ring; 11. connecting rod; 12. sand collecting hopper; 13. collecting hopper; 14. supporting foot frame; 15. discharge port; 16. spring; 17. filter screen; 18. hinge; 19. block; 20. pressure sensor; 21. electromagnetic block. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] like Figure 1-Figure 6 As shown, a sand screening machine for housing construction projects includes a base 1, a first mounting frame 2 and a second mounting frame 3 are fixedly arranged at both ends of the base 1, the first mounting frame 2 and the second mounting frame 3 are rotatably connected to a sand screening cylinder 4, a feed inlet 5 is arranged on the sand screening cylinder 4, a plurality of sieve holes 6 are evenly arranged on the side wall of the sand screening cylinder 4, a stirring and sand screening mechanism is arranged in the sand screening cylinder 4, and the stirring and sand screening mechanism is used to drive the sand in the sand screening cylinder 4 to rotate and screen out the sieve holes 6 after stirring.

[0026] The stirring and screening sand mechanism includes a driving motor 8, which also includes a connecting shaft 9, multiple groups of connecting rods 11 and multiple connecting rings 10. The connecting shaft 9 is coaxially fixed to the sand screening cylinder 4, and the output end of the driving motor 8 is coaxially fixed to the connecting shaft 9. Multiple groups of connecting rods 11 are distributed on the side wall of the connecting shaft 9 in a circular array. The end of the connecting rod 11 away from the connecting shaft 9 is fixed to the connecting ring 10. Multiple connecting rings 10 are coaxially arranged on the inner wall of the sand screening cylinder 4. The sand collecting hopper 12 is arranged below the multiple sieve holes 6. The connecting shaft 9 is driven to rotate by the output end of the driving motor 8, so that the sand entering the sand screening cylinder 4 from the feed port 5 is rotated and screened along the inner wall of the sand screening cylinder 4, and the agglomerated sand is fully dispersed after being stirred and cut by the connecting rod 11 and rubbed with the inner wall of the sand screening cylinder 4, and finally enters the sand collecting hopper 12 along the sieve holes 6 of the sand screening cylinder 4. The structure is arranged as a whole, occupies a small space, and has high sand screening efficiency.

[0027] The stirring and sand screening mechanism also includes a discharge port 15, which is arranged at one end of the sand screening cylinder 4 away from the driving motor 8. A first rectangular through hole and a second rectangular through hole are respectively provided on the base 1, and a sand collecting hopper 12 and a material collecting hopper 13 are respectively provided below the first rectangular through hole and the second rectangular through hole. The sand collecting hopper 12 is made of metal iron, and the material collecting hopper 13 is arranged below the discharge port 15. The stone particles filtered by the sand screening cylinder 4 flow downward along the inner wall of the sand screening cylinder 4 through the discharge port 15 under the action of gravity and enter the material collecting hopper 13, which is convenient for collecting and utilizing the screened stone particles, and the operation is simple and convenient.

[0028] like Figure 5 As shown, a filter screen 17 is provided in the sand collecting hopper 12, and one end of the filter screen 17 is connected to the sand collecting hopper 12 by a spring 16, and a third rectangular through hole is provided at the other end of the filter screen 17 connected to the sand collecting hopper 12, and the third rectangular through hole is located on the sand collecting hopper 12. Sand entering the sand collecting hopper 12 will fall onto the filter screen 17, and there may be smaller stones in the sand, which will produce pressure on the filter screen 17, so that the spring 16 is stretched and the filter screen 17 swings, thereby preventing sand or stones from being stuck in the gap of the filter screen 17. The sand entering the sand collecting hopper 12 will be screened again through the filter screen 17 in the sand collecting hopper 12, and the sand that has passed the screening will flow into the bottom of the sand collecting hopper 12, and the screened stones will move to the third rectangular through hole due to the influence of gravity.

[0029] like Figure 2 and Figure 6 As shown, a stopper 19 larger than the third rectangular through hole is provided on one side of the outer wall of the sand collecting hopper 12, a hinge 18 is fixed on one side of the outer wall of the sand collecting hopper 12, and the stopper 19 is connected to the sand collecting hopper 12 through the hinge 18, a pressure sensor 20 is provided on the side of the stopper 19 facing the sand collecting hopper 12, and an electromagnetic block 21 is provided on one side of the pressure sensor 20. The stopper 19 is adsorbed on the outer wall of the sand collecting hopper 12 through the electromagnetic block 21, which can block the movement of stone particles. When too many stone particles accumulate at the third rectangular through hole and the load on the stopper 19 is large, the pressure sensor 20 will send a signal, which will cut off the power to the electromagnetic block 21 to eliminate the magnetic force. The stopper 19 is squeezed by the stone particles and swings through the hinge 18, so that the stone particles are moved out of the device, thereby improving the sand screening efficiency and facilitating the collection and utilization of the screened fine sand and stone particles respectively.

[0030] like Figure 1 and Figure 2 As shown, a connecting mounting frame 7 is fixed on the base 1, a driving motor 8 is fixed on the connecting mounting frame 7, the first mounting frame 2 is higher than the second mounting frame 3, and the sand screening cylinder 4 is arranged at an angle. The effect of such arrangement is to facilitate the sand entering the sand screening cylinder 4 from the feed port 5 to be rotated and screened along the inner wall of the sand screening cylinder 4, so that the sand is spirally screened along the inner wall of the sand screening cylinder 4 under the action of gravity, and the screening effect is good.

[0031] like Figure 1and Figure 4 As shown, multiple groups of connecting rods 11 are provided with edges at one end close to the feed port 5. The edges are provided for stirring and cutting the agglomerated sand, so as to facilitate the full dispersion of the agglomerated sand and improve the screening efficiency. In addition, multiple supporting legs 14 for supporting the base 1 are provided at the bottom of the base 1, which is beneficial to the stability of the base 1.

[0032] The working principle of the utility model is as follows:

[0033] The connecting shaft 9 is driven to rotate by the output end of the driving motor 8. Since the connecting shaft 9 and the sand screening drum 4 are coaxially fixed by multiple connecting rods 11 and multiple connecting rings 10, the sand entering the sand screening drum 4 from the feed inlet 5 is rotated and screened along the inner wall of the sand screening drum 4, and the agglomerated sand is fully dispersed after being stirred and cut by the connecting rod 11 and rubbed against the inner wall of the sand screening drum 4, and enters the sand collecting hopper 12 along the sieve hole 6 of the sand screening drum 4, and is finally filtered again through the filter mesh 17 in 12. The filtered stone particles will pass through the extrusion block 19 and move out from the third rectangular through hole, and the stone particles retained by the sand screening drum 4 will enter the collecting hopper 13 through the discharge port 15 downward along the inner wall of the sand screening drum 4 under the action of gravity.

[0034] The above description is only a preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present utility model can make equivalent substitutions or changes based on the technical scheme and utility model concept of the present utility model, which should be covered by the protection scope of the present utility model.

Claims

1. A sand screening machine for housing construction engineering, comprising a base (1), characterized in that: A first mounting frame (2) and a second mounting frame (3) are fixedly mounted at both ends of the base (1), the first mounting frame (2) and the second mounting frame (3) are rotatably connected to a sand screening cylinder (4), a feed inlet (5) is provided on the sand screening cylinder (4), a plurality of sieve holes (6) are evenly provided on the side wall of the sand screening cylinder (4), a stirring sand screening mechanism is provided inside the sand screening cylinder (4), and the stirring sand screening mechanism comprises a driving motor (8); a connecting mounting frame (7) is fixedly mounted on the base (1), the driving motor (8) is fixed on the connecting mounting frame (7), the first mounting frame (2) is higher than the second mounting frame (3), and the sand screening cylinder (4) is arranged in an inclined manner; The stirring and sand screening mechanism further comprises a connecting shaft (9) and a discharge port (15); a plurality of connecting rods (11) and a plurality of connecting rings (10) are fixed on the connecting shaft (9); the connecting shaft (9) is coaxially fixed to the sand screening cylinder (4); the output end of the driving motor (8) is coaxially fixed to the connecting shaft (9); a plurality of connecting rods (11) are distributed in a circular array on the side wall of the connecting shaft (9); an end of the connecting rod (11) away from the connecting shaft (9) is fixed to the connecting ring (10); and a plurality of connecting rings (10) are coaxially arranged on the inner wall of the sand screening cylinder (4); and the discharge port (15) is arranged at an end of the sand screening cylinder (4) away from the driving motor (8).

2. A sand screening machine for housing construction engineering according to claim 1, characterized in that: The plurality of groups of connecting rods (11) are provided with edges at one end close to the feed port (5).

3. A sand screening machine for housing construction engineering according to claim 1, characterized in that: The base (1) is provided with a first rectangular through hole and a second rectangular through hole, respectively; a sand collecting hopper (12) and a material collecting hopper (13) are provided below the first rectangular through hole and the second rectangular through hole, respectively; the sand collecting hopper (12) is made of metal iron; the material collecting hopper (13) is provided below the discharge port (15); and the sand collecting hopper (12) is provided below the plurality of sieve holes (6).

4. A sand screening machine for housing construction engineering according to claim 3, characterized in that: A filter screen (17) is provided in the sand collecting hopper (12). The filter screen (17) is placed obliquely, and one end of the filter screen (17) is connected to the sand collecting hopper (12) via a spring (16). A third rectangular through hole is provided at the other end of the filter screen (17) connected to the sand collecting hopper (12). The third rectangular through hole is located on the sand collecting hopper (12).

5. A sand screening machine for housing construction engineering according to claim 4, characterized in that: A stopper (19) larger than the third rectangle is provided on one side of the outer wall of the sand collecting hopper (12); a hinge (18) is fixed on one side of the outer wall of the sand collecting hopper (12); the stopper (19) is connected to the sand collecting hopper (12) via the hinge (18); a pressure sensor (20) is provided on a side of the stopper (19) facing the sand collecting hopper (12); and an electromagnetic block (21) is provided on one side of the pressure sensor (20).

6. A sand screening machine for housing construction engineering according to claim 1, characterized in that: A plurality of supporting legs (14) for supporting the base (1) are provided at the bottom of the base (1).

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