Crushing and screening device for road and bridge construction

Abstract

The utility model relates to the technical field of construction marking, in particular to a crushing and screening device for road and bridge construction, a discharging device comprises two long strip plates, sliding grooves are formed in the surfaces of the two long strip plates, two displacement plates are slidably connected into the sliding grooves, and a discharging plate is fixedly installed at the ends, away from the sliding grooves, of the two displacement plates; a plurality of first screening holes are formed in the surface of the discharging plate, a plurality of second screening holes are evenly formed in the inner bottom face of the lime storage box, a long groove is formed in the surface of the long strip plate, an L-shaped support is slidably connected to the interior of the long groove, and two connecting rods are fixedly installed between the L-shaped support and the two displacement plates; a motor is fixedly installed on the surface of the vertical end of the L-shaped support, a gear is fixedly installed at the output end of the motor, and a rack is fixedly installed on the side face of the long-strip-shaped plate. According to the utility model, lime powder which absorbs water and is caked can be crushed, so that bridge construction marking is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of construction marking lines, in particular to a crushing and screening device for road and bridge construction. Background Art

[0002] During the bridge construction process, the ground foundation needs to be excavated at locations such as bridge piers. Since the foundation locations have been designed and laid out in advance, it is necessary to mark the pre-marked points during construction and then carry out construction within the marked range.

[0003] The commonly used method for the existing pier ground marking construction is to connect the predetermined points together by dropping lime while the marking cart moves. The inventors found in their daily work that lime easily absorbs water and then forms agglomerates, which easily block the spraying port and affect the marking. Utility Model Content

[0004] The utility model aims to solve the technical problems in the above background and proposes a crushing and screening device for road and bridge construction.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a crushing and screening device for road and bridge construction is essentially a discharging device with a crushing function, including a lime storage box, two pulleys are fixedly installed on both side surfaces of the lime storage box, a hand push rod is fixedly installed between the two side surfaces of the lime storage box, two support rods are fixedly installed on both side surfaces of the lime storage box, a scattering box is fixedly installed on one end of the four support rods away from the lime storage box, a discharge pipe is fixedly installed on the bottom surface of the scattering box, a valve is fixedly installed on the outer wall surface of the discharge pipe, and a discharging device is provided on both side surfaces of the lime storage box, and the discharging device includes two long strips, two of the long strips are fixedly installed on the two side surfaces of the lime storage box, and the surfaces of the two long strips are provided with a slide groove, and two displacement plates are slidably connected inside the slide groove, and a discharging plate is fixedly installed on one end of the two displacement plates away from the slide groove, and a plurality of first screening holes are opened on the surface of the discharging plate, and a plurality of second screening holes are evenly opened on the inner bottom surface of the lime storage box. The setting of the displacement plate plays an effect of driving the discharge plate to move, and the setting of the first screening hole and the second screening hole plays a role in allowing the lime to be screened.

[0006] Preferably, a long groove is formed on the surface of the long strip, an L-shaped bracket is slidably connected inside the long groove, and two connecting rods are fixedly installed between the L-shaped bracket and the two displacement plates. The setting of the connecting rod plays the effect of driving the displacement plate to move inside the slide groove.

[0007] Preferably, a motor is fixedly mounted on the surface of the vertical end of the L-shaped bracket, a gear is fixedly mounted on the output end of the motor, a rack is fixedly mounted on the side of the long plate, and the gear and the rack are meshed with each other. The setting of the motor has the effect of driving the gear to rotate, and the setting of the gear and the rack has the effect of allowing the L-shaped bracket to move inside the long slot.

[0008] Preferably, a dispersing device is provided between the inner walls of both sides of the dispersing box, and the dispersing device comprises a rotating shaft, and the rotating shaft is rotatably connected between the inner walls of both sides of the dispersing box, and a plurality of dispersing rods are annularly distributed on the outer wall surface of the rotating shaft, and a rotating wheel is fixedly installed at one end of the rotating shaft. The setting of the rotating wheel has the effect of driving the rotating shaft to rotate, the setting of the rotating shaft has the effect of driving the dispersing rod to rotate, and the setting of the dispersing rod has the effect of dispersing the lime that absorbs water and agglomerates.

[0009] Preferably, a U-shaped bracket is fixedly installed on the side of the scattering box, a threaded rod is rotatably connected between the inner walls at both ends of the U-shaped bracket, and a knob is fixedly installed at one end of the threaded rod. The setting of the knob has the effect of driving the threaded rod to rotate.

[0010] Preferably, the inner wall surface of the U-shaped bracket is provided with a groove, the surface of the threaded rod is threadedly connected with a movable plate, the movable plate is slidably connected by means of the threaded rod and the groove, a limiting rod is fixedly installed on the surface of the movable plate, and the outer wall surface of the rotating shaft is provided with a plurality of limiting holes in an annular manner, and one end of the limiting rod away from the movable plate is located inside the limiting hole. The setting of the threaded rod has the effect of driving the movable plate to move inside the groove, and the setting of the limiting rod and the limiting hole has the effect of limiting the rotation of the rotating shaft.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, by setting a discharging device, when uniform marking is required, the motor is started first, and the motor starts to drive the gear to rotate, and the gear rotates and meshes with the rack, so that the L-shaped bracket moves inside the long groove, and the L-shaped bracket moves inside the long groove to drive the two connecting rods to move, and the movement of the two connecting rods drives the two displacement plates to move inside the slide groove, and the two displacement plates move inside the slide groove to drive the discharging plate to move, and the movement of the discharging plate drives the first screening hole to move, and the first screening hole moves to align itself with the second screening hole. When the first screening hole and the second screening hole are aligned, the motor is turned off at this time, and then the valve is opened to make the lime inside the shattering box fall into the inside of the lime storage box through the discharge pipe, and then the first screening hole and the second screening hole are used to make the lime inside the lime storage box fall on the soil to realize the marking operation. Since the first screening hole and the second screening hole are equidistant and evenly distributed, the purpose of uniform marking is achieved.

[0013] 2. In the utility model, by setting up a breaking device, when it is necessary to break up the water-absorbed and clumped lime, first turn the knob, the rotation of the knob drives the threaded rod to rotate, the rotation of the threaded rod drives the movable plate to move inside the groove, the movement of the movable plate inside the groove drives the limit rod to move, the movement of the limit rod causes itself to move out from the inside of the limit hole, the limit rod and the limit hole are separated to make the rotating shaft lose the limit, then turn the rotating wheel, the rotation of the rotating wheel drives the rotation of the rotating shaft, the rotation of the rotating shaft drives the breaking rod to rotate, the breaking rod rotates to break up the water-absorbed and clumped lime to avoid clogging by lime clumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a crushing and screening device for road and bridge construction;

[0015] Figure 2 This is a schematic structural diagram of another angle of a crushing and screening device for road and bridge construction proposed by the utility model;

[0016] Figure 3 The utility model provides a schematic diagram of the bottom structure of a crushing and screening device for road and bridge construction;

[0017] Figure 4 The utility model proposes a crushing and screening device for road and bridge construction. Figure 3 Schematic diagram from another angle;

[0018] Figure 5 This utility model proposes a crushing and screening device for road and bridge construction Figure 2 The structural diagram at A in the middle;

[0019] Figure 6 This utility model proposes a crushing and screening device for road and bridge construction Figure 3 The structural diagram at B in the middle;

[0020] Legend:

[0021] 1. Lime storage box; 2. Pulley; 3. Hand push rod; 4. Support rod; 5. Scattering box; 6. Discharging device; 601. Long strip plate; 602. Slide groove; 603. Displacement plate; 604. Discharging plate; 605. First screening hole; 606. Second screening hole; 607. Long groove; 608. L-shaped bracket; 609. Connecting rod; 610. Motor; 611. Gear; 612. Rack; 7. Scattering device; 701. Rotating shaft; 702. Scattering rod; 703. Rotating wheel; 704. U-shaped bracket; 705. Threaded rod; 706. Knob; 707. Groove; 708. Movable plate; 709. Limit rod; 710. Limit hole; 8. Feeding pipe; 9. Valve. DETAILED DESCRIPTION

[0022] See also Figure 1-6 The utility model provides a technical solution: a crushing and screening device for road and bridge construction, including a lime storage box 1, two pulleys 2 are fixedly installed on both side surfaces of the lime storage box 1, a push rod 3 is fixedly installed between the two side surfaces of the lime storage box 1, two support rods 4 are fixedly installed on both side surfaces of the lime storage box 1, a scattering box 5 is fixedly installed at one end of the four support rods 4 away from the lime storage box 1, a discharge pipe 8 is fixedly installed on the bottom surface of the scattering box 5, and a valve 9 is fixedly installed on the outer wall surface of the discharge pipe 8.

[0023] The specific arrangement and function of the discharging device 6 and the breaking device 7 will be described in detail below.

[0024] In this embodiment: both side surfaces of the lime storage box 1 are provided with a discharge device 6, the discharge device 6 includes two long plates 601, the two long plates 601 are fixedly installed on the both side surfaces of the lime storage box 1, the surfaces of the two long plates 601 are provided with a slide groove 602, the inside of the slide groove 602 is slidably connected with two displacement plates 603, and the two displacement plates 603 are fixedly installed with a discharge plate 604 at one end away from the slide groove 602, and a plurality of first screening holes 605 are provided on the surface of the discharge plate 604, and a plurality of second screening holes 606 are evenly provided on the inner bottom surface of the lime storage box 1.

[0025] In this embodiment, the setting of the displacement plate 603 has the effect of driving the discharge plate 604 to move, and the setting of the first screening hole 605 and the second screening hole 606 has the effect of allowing the lime to be evenly marked.

[0026] Specifically, a long groove 607 is formed on the surface of the long plate 601 , an L-shaped bracket 608 is slidably connected inside the long groove 607 , and two connecting rods 609 are fixedly installed between the L-shaped bracket 608 and the two displacement plates 603 .

[0027] In this embodiment, the connection rod 609 is provided to drive the displacement plate 603 to move inside the slide groove 602 .

[0028] Specifically, a motor 610 is fixedly mounted on the surface of the vertical end of the L-shaped bracket 608, a gear 611 is fixedly mounted on the output end of the motor 610, and a rack 612 is fixedly mounted on the side of the long plate 601, and the gear 611 and the rack 612 are meshed with each other. The setting of the motor 610 has the effect of driving the gear 611 to rotate, and the setting of the gear 611 and the rack 612 has the effect of allowing the L-shaped bracket 608 to move inside the long slot 607.

[0029] In this embodiment: a scattering device 7 is provided between the inner walls on both sides of the scattering box 5, and the scattering device 7 includes a rotating shaft 701, which is rotatably connected between the inner walls on both sides of the scattering box 5, and a plurality of scattering rods 702 are distributed in an annular manner on the outer wall surface of the rotating shaft 701, and a rotating wheel 703 is fixedly installed at one end of the rotating shaft 701. When it is necessary to prevent lime from agglomerating in the breaking box 5, first turn the knob 706. The rotation of the knob 706 drives the threaded rod 705 to rotate. The rotation of the threaded rod 705 drives the movable plate 708 to move inside the groove 707. The movable plate 708 moves inside the groove 707 and drives the limiting rod 709 to move. The limiting rod 709 moves so that it moves out from the inside of the limiting hole 710. The limiting rod 709 and the limiting hole 710 are separated so that the rotating shaft 701 loses its limit. At this time, turn the rotating wheel 703. The rotation of the rotating wheel 703 drives the rotating shaft 701 to rotate. The rotation of the rotating shaft 701 drives the breaking rod 702 to rotate. The breaking rod 702 rotates to break up the lime that absorbs water and agglomerates, thereby preventing the lime from absorbing water and agglomerating. Through the cooperation of the above-mentioned structure, the breaking rod 702 can break up the lime.

[0030] Specifically, a U-shaped bracket 704 is fixedly installed on the side of the scattering box 5, and a threaded rod 705 is rotatably connected between the inner walls at both ends of the U-shaped bracket 704, and a knob 706 is fixedly installed on one end of the threaded rod 705.

[0031] In this embodiment, the setting of the knob 706 has the effect of driving the threaded rod 705 to rotate.

[0032] Specifically, a groove 707 is provided on the inner wall surface of the U-shaped bracket 704, and a movable plate 708 is threadedly connected to the surface of the threaded rod 705. The movable plate 708 is slidably connected with the threaded rod 705 and the groove 707. A limiting rod 709 is fixedly installed on the surface of the movable plate 708. A plurality of limiting holes 710 are provided in a ring shape on the outer wall surface of the rotating shaft 701, and one end of the limiting rod 709 away from the movable plate 708 is located inside the limiting hole 710.

[0033] In this embodiment, the threaded rod 705 is provided to drive the movable plate 708 to move inside the groove 707 , and the limiting rod 709 and the limiting hole 710 are provided to limit the rotation of the rotating shaft 701 .

[0034] Working principle: when the foundation of the bridge pier needs to be excavated during the construction of the bridge, first mark points on the ground, and then connect the points into lines through the marking cart. By setting the discharge device 6, when it is necessary to mark evenly, first start the motor 610, the motor 610 starts to drive the gear 611 to rotate, the gear 611 rotates and meshes with the rack 612, so that the L-shaped bracket 608 moves inside the long groove 607, the L-shaped bracket 608 moves inside the long groove 607 and drives the two connecting rods 609 to move, and the two connecting rods 609 move to drive the two displacement plates 603 in the slide groove 60 2, the two displacement plates 603 move inside the slide 602 to drive the discharge plate 604 to move, the discharge plate 604 moves to drive the first screening hole 605 to move, the first screening hole 605 moves to align itself with the second screening hole 606, when the first screening hole 605 and the second screening hole 606 are aligned, the motor 610 is turned off at this time, and then the valve 9 is opened, so that the lime inside the shatter box 5 falls into the interior of the lime storage box 1 through the discharge pipe 8, and then the first screening hole 605 and the second screening hole 606 are used to drop the lime inside the lime storage box 1 onto the soil. When it is necessary to prevent lime from absorbing water and agglomerating, first turn the knob 706. The rotation of the knob 706 drives the threaded rod 705 to rotate. The rotation of the threaded rod 705 drives the movable plate 708 to move inside the groove 707. The movable plate 708 moves inside the groove 707 and drives the limiting rod 709 to move. The limiting rod 709 moves to move itself out of the limiting hole 710. The limiting rod 709 and the limiting hole 710 are separated to make the rotating shaft 701 lose its limit. At this time, turn the rotating wheel 703. The rotation of the rotating wheel 703 drives the rotating shaft 701 to rotate. The rotation of the rotating shaft 701 drives the breaking rod 702 to rotate. The breaking rod 702 rotates to break up the lime to prevent the lime from absorbing water and agglomerating.

Claims

1. A crushing and screening device for road and bridge construction, comprising a lime storage box (1), two pulleys (2) are fixedly installed on both side surfaces of the lime storage box (1), a push rod (3) is fixedly installed between the two side surfaces of the lime storage box (1), two support rods (4) are fixedly installed on both side surfaces of the lime storage box (1), a breaking box (5) is fixedly installed at one end of the four support rods (4) away from the lime storage box (1), a discharge pipe (8) is fixedly installed on the bottom surface of the breaking box (5), and a valve (9) is fixedly installed on the outer wall surface of the discharge pipe (8), characterized in that: The two side surfaces of the lime storage box (1) are both provided with a discharge device (6), the discharge device (6) comprising two long strips (601), the two long strips (601) being fixedly mounted on the two side surfaces of the lime storage box (1), the two long strips (601) being provided with a slide groove (602) on the surface, the inside of the slide groove (602) being slidably connected with two displacement plates (603), the two displacement plates (603) being fixedly mounted with a discharge plate (604) at one end away from the slide groove (602), the surface of the discharge plate (604) being provided with a plurality of first screening holes (605), and the inner bottom surface of the lime storage box (1) being evenly provided with a plurality of second screening holes (606).

2. A crushing and screening device for road and bridge construction according to claim 1, characterized in that: A long groove (607) is provided on the surface of the long strip (601), an L-shaped bracket (608) is slidably connected inside the long groove (607), and two connecting rods (609) are fixedly installed between the L-shaped bracket (608) and the two displacement plates (603).

3. A crushing and screening device for road and bridge construction according to claim 2, characterized in that: A motor (610) is fixedly mounted on the surface of the vertical end of the L-shaped bracket (608), a gear (611) is fixedly mounted on the output end of the motor (610), a rack (612) is fixedly mounted on the side of the long plate (601), and the gear (611) and the rack (612) are meshed with each other.

4. A crushing and screening device for road and bridge construction according to claim 1, characterized in that: A scattering device (7) is provided between the inner walls on both sides of the scattering box (5), and the scattering device (7) comprises a rotating shaft (701), the rotating shaft (701) is rotatably connected between the inner walls on both sides of the scattering box (5), a plurality of scattering rods (702) are distributed in an annular manner on the outer wall surface of the rotating shaft (701), and a rotating wheel (703) is fixedly mounted on one end of the rotating shaft (701).

5. A crushing and screening device for road and bridge construction according to claim 4, characterized in that: A U-shaped bracket (704) is fixedly mounted on the side of the breaking box (5), a threaded rod (705) is rotatably connected between the inner walls at both ends of the U-shaped bracket (704), and a knob (706) is fixedly mounted on one end of the threaded rod (705).

6. A crushing and screening device for road and bridge construction according to claim 5, characterized in that: The inner wall surface of the U-shaped bracket (704) is provided with a groove (707), the surface of the threaded rod (705) is threadedly connected with a movable plate (708), the movable plate (708) is slidably connected with the threaded rod (705) and the groove (707), a limiting rod (709) is fixedly installed on the surface of the movable plate (708), and the outer wall surface of the rotating shaft (701) is annularly provided with a plurality of limiting holes (710), and one end of the limiting rod (709) away from the movable plate (708) is located inside the limiting hole (710).

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