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CN-224221981-U - Sand screening device for building construction

CN224221981UCN 224221981 UCN224221981 UCN 224221981UCN-224221981-U

Abstract

The utility model discloses a sand screening device for building construction, which relates to the technical field of building engineering machinery, in particular to a sand screening device for building construction, comprising a bracket assembly, wherein the bracket assembly comprises a bracket side beam, a bracket front beam, a bracket rear additional beam and a bracket middle beam, a stop block is arranged above the support side beam, a bearing seat is arranged below the support front beam and the support rear beam, and a pin through hole is formed in the middle position of the support front beam and the support middle beam. Through the cooperation setting of activity screen assembly, bulb screw, opening cover and compression spring, make this sand screening device for construction possess the effect that the power consumption is low and efficient, through the cooperation setting of activity screen assembly and screen cloth, make this sand screening device for construction possess the effect that is convenient for change and replacement cost is low, through the cooperation setting of activity screen assembly and screen cloth, make this sand screening device for construction possess the effect that the individual layer screen cloth also can sieve in grades.

Inventors

  • MU LIHONG
  • Niu Jingqi

Assignees

  • 穆利红

Dates

Publication Date
20260512
Application Date
20250411

Claims (6)

  1. 1. The sand screening device for building construction comprises a bracket assembly (1), and is characterized in that the bracket assembly (1) comprises a bracket side beam (101), a bracket front beam (102), a bracket rear beam (103), a bracket rear additional beam (104) and a bracket middle beam (105), a stop block (106) is arranged above the bracket side beam (101), bearing seats (107) are arranged below the bracket front beam (102) and the bracket rear beam (103), pin through holes (108) are formed in the middle positions of the bracket front beam (102) and the bracket middle beam (105), a movable screen assembly (2) is arranged above the bracket side beam (101), the movable screen assembly (2) comprises a screen side beam (201), a screen front plate (202) and a screen rear plate (203), an adjusting block (204) is fixedly arranged in the middle position of the outer side surface of the screen side beam (201), adjusting blocks (204) are connected with adjusting bolts (205) through threads, plug bolts (206) are connected with two ends of the outer side surface of the outer side of the screen side beam (201), roller wheels (207) are sleeved on the outer surfaces of the plug bolts (206), the screen front plate (202) is provided with a screen through holes (208) close to the upper shaft holes (209) of the screen front plate (203), nail through-hole (210) have been seted up to the both sides that sieve back plate (203) are close to axle through-hole (208), detachable screen cloth (211) are installed to the top of sieve curb girder (201), sieve front bezel (202) and sieve back plate (203), install pivot (3) that pass axle through-hole (208) between two bearing frame (107), motor (4) of rotatory drive pivot (3) are installed at the rear of additional roof beam (104) behind the support, open sleeve (5) have been cup jointed to the surface that pivot (3) are close to sieve back plate (203), peg graft through nut fixed bulb screw (6) in the inside of nail through-hole (210), peg graft through nut fixed pin (7) in the inside of pin through-hole (108), compression spring (8) have been cup jointed to the surface of pin (7).
  2. 2. The sand screening device for construction according to claim 1, wherein the number of the movable screen assemblies (2) is the same, but the depth of the screen front plate (202) and the screen rear plate (203) and the installation height of the rollers (207) are different, so that the screen (211) of the latter movable screen assembly (2) is higher than the screen (211) of the former movable screen assembly (2) and partially overlaps.
  3. 3. The sand screening device for building construction according to claim 1, wherein the number of the screens (211) is the same, the sizes of the inner diameters of the leakage holes are different, upward flanges are arranged on two sides of the screens (211) to prevent sand from rolling off from the sides, the screens (211) are fixedly connected with the screen side beams (201), the screen front plate (202) and the screen rear plate (203) through screws, and the screens can be replaced by unscrewing the screws.
  4. 4. The sand screening device for building construction according to claim 1, wherein the roller (207) is connected with the plugging bolt (206) through a bearing so that the rolling friction is small, and a flange is arranged on the outer side of the roller (207) and is clamped on the outer side of the bracket side beam (101) so that the movable screen assembly (2) can move back and forth on the bracket assembly (1) but cannot deviate left and right.
  5. 5. The sand screening device for building construction according to claim 1, wherein the pin (7) is inserted into the pin hole (209), the elastic force generated when the compression spring (8) is compressed pushes the movable screen assembly (2) backwards, the adjusting bolt (205) backwards props against the stop block (106) to realize limit, the pin (7) can be prevented from being separated from the pin hole (209), the adjusting bolt (205) is screwed backwards, the compression spring (8) is extruded forwards, and the elastic force is larger.
  6. 6. The sand screening device for building construction according to claim 1, wherein two symmetrical notches (501) are formed in front of the opening sleeve (5), a chamfer (502) is formed in one side of each notch (501), when the opening sleeve (5) rotates, the chamfer (502) intermittently pushes the ball screw (6) forwards, meanwhile, the movable screen assembly (2) moves forwards against the elastic force of the compression spring (8), when the notches (501) rotate to the rear of the ball screw (6), the elastic force of the compression spring (8) pushes the movable screen assembly (2) backwards again, the number of the opening sleeves (5) is different, the installation angles are different, and the forward pushing time of each movable screen assembly (2) is different.

Description

Sand screening device for building construction Technical Field The utility model relates to the technical field of building engineering machinery, in particular to a sand screening device for building construction. Background The sand sieving device is a mechanical device for separating impurities or particles with different particle diameters in sand so as to achieve the aim of purification or classification, and the common sand sieving device is a function of realizing sieving by driving a screen to reciprocate through a motor and an eccentric mechanism, and because the whole screen is simultaneously driven, therefore, the motor is large in function or the screen is relatively short to work normally, the existing sand screening device is high in energy consumption or low in efficiency, the existing screen is not segmented generally, the screen is replaced once being broken, the operation is inconvenient, the cost is high, and the single-layer screen cannot be classified as the screen is not segmented. Disclosure of utility model (One) solving the technical problems Aiming at the defects of the prior art, the utility model provides a sand screening device for building construction, which solves the problems in the prior art. (II) technical scheme The sand screening device for the building construction comprises a support assembly, wherein the support assembly comprises a support side beam, a support front beam, a support rear additional beam and a support middle beam, a stop block is arranged above the support side beam, a bearing seat is arranged below the support front beam and the support rear beam, a pin through hole is formed in the middle position of the support front beam and the support middle beam, a movable screen assembly is arranged above the support side beam, the movable screen assembly comprises a screen side beam, a screen front plate and a screen rear plate, an adjusting block is fixedly arranged in the middle position of the outer side surface of the screen side beam, adjusting bolts are connected to the middle position of the adjusting block through threads, plug bolts are connected to the two ends of the outer side surface of the screen side beam through threads, rollers are sleeved on the outer surfaces of the plug bolts, shaft through holes are formed in the lower portions of the screen front plate and the screen rear plate, pin through holes are formed in the upper portions of the screen front plate close to the shaft through holes, a movable screen side beam, a movable screen front plate and a motor is arranged above the screen front plate and the screen rear plate, a rotary shaft is detachably connected to the rotary shaft is sleeved on the rotary shaft through the rotary shafts of the rotary shafts, and the rotary shafts are fixedly sleeved on the rotary shafts of the rotary shafts and the rotary shafts are sleeved on the rotary shafts and the rotary shafts are connected to the rotary shafts through the rotary shafts. Preferably, the number of the movable screen assemblies is a plurality of the same, but the depth of the screen front plate and the screen rear plate and the installation height of the rollers are different, so that the screen mesh of the latter movable screen assembly is higher than the screen mesh of the former movable screen assembly and is partially overlapped. Preferably, the number of the screens is the same in a plurality of structures, the sizes of the inner diameters of the leakage holes can be different, upward flanges are arranged on two sides of the screens, sand and stone can be prevented from falling off from the sides, and the screens are fixedly connected with the screen side beams, the screen front plate and the screen rear plate through screws and can be replaced by unscrewing the screws. Preferably, the roller is connected with the stopper bolt through a bearing to ensure that the rotation friction is small, and the outer side of the roller is provided with a flange and is clamped at the outer side of the side beam of the bracket, so that the movable screen assembly can move back and forth on the bracket assembly but can not deviate left and right. Preferably, the pin is inserted into the pin hole, the elastic force generated when the compression spring is compressed pushes the movable screen assembly backwards, the adjusting bolt is pushed backwards to prop against the stop block to realize limit, the pin can be prevented from being separated from the pin hole, the adjusting bolt is screwed backwards, the movable screen assembly extrudes the compression spring forwards, and the elastic force is larger. Preferably, two symmetrical notches are formed in the front of the opening sleeve, a chamfer is formed in one side of each notch, the chamfer intermittently pushes the ball screw forward when the opening sleeve rotates, meanwhile, the movable screen assembly overcomes the elasticity of the compression spring to move forward, the elasticity of the c