A dust removal device for road and bridge compactor

Abstract

The utility model relates to a dust removal device for a road and bridge compactor, comprising a shell, a horizontal partition is arranged in the shell, a vertical pipe is fixed on the lower end surface of the shell, a one-way valve is arranged in the vertical pipe, a piston is arranged in the lower cavity of the shell, a vertical rod is fixed on the lower end of the piston, the vertical rod passes through the lower end surface of the shell, an air outlet is opened in the lower cavity of the shell, a one-way valve is arranged in the air outlet, a dust bag is fixed on the outer side of the air outlet, a ventilation hole is opened above the side wall of the cavity below the shell partition, a one-way valve is arranged in the ventilation hole, an air inlet pipe is fixed on the partition, a one-way valve is arranged in the air inlet pipe, and a water outlet pipe is arranged above the side wall of the upper cavity of the shell; the utility model drives the piston to move through the relative movement of the tamping rod and the machine body, and the upwardly moving piston can draw air through the vertical pipe, so that the dust-containing gas is sucked into the cavity of the shell, and when the piston moves downward, it is discharged into the dust bag through the air outlet to collect dust, thereby greatly improving the generation of dust during tamping.

Description

Technical Field

[0001] The utility model relates to the field of road and bridge construction, in particular to a dust removal device for a road and bridge compactor. Background Art

[0002] There are many types of compactors. Most commonly used compactors are fire-powered compactors, which are made according to the principle of a two-stroke internal combustion engine. A compactor with an inclined bottom surface is installed at the bottom of the cylinder, so that the vertical axis of the cylinder is tilted forward. The upper piston rod extends from the through hole in the middle of the cylinder top cover, and the lower piston rod extends from the lower end surface of the cylinder and is connected to the compactor. The cylinder and the compactor are tightened by a spring, and a handrail is provided to control the compaction. When the compactor is compacting, it often produces a lot of smoke and dust while impacting the soil base, which not only affects the health of the operator but also blocks the view and affects the compaction effect.

[0003] In the prior art, announcement number CN109126329B discloses a dustproof construction compactor and dust removal method, which adopts semi-enclosed dust suction and can effectively prevent dust. However, the dust generated in the dust suction room easily adheres to the inner wall and blocks the field of vision, making it difficult for operators to confirm the compaction of the road surface. In addition, it is difficult to apply to existing compactors, has a high replacement cost, and has low practicality. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model adopts a dust removal device for a road and bridge compactor, which solves the problem in the prior art that dust generated by compaction operation blocks the field of vision.

[0005] The technical solution is a dust removal device for a road and bridge compactor, comprising a shell, a horizontal partition is arranged in the shell, the partition divides the shell into two independent cavities, a vertical pipe is fixed to the lower end surface of the shell, a one-way valve is arranged in the vertical pipe, the one-way valve enables the vertical pipe to only take in air to the lower cavity of the shell but not to discharge air, a piston is arranged in the lower cavity of the shell, the piston can move up and down along the shell cavity and the outer edge surface is always in contact with the inner wall of the lower cavity of the shell, a vertical rod is fixed to the lower end of the piston, the vertical rod passes through the lower end surface of the shell, an air outlet is opened in the lower cavity of the shell, and a valve is arranged in the air outlet There is a one-way valve, which makes the air outlet only able to discharge air to the outside of the shell and prevent air from entering. A dust bag is fixed on the outside of the air outlet. A ventilation hole is opened above the side wall of the cavity on the lower side of the shell partition. A one-way valve is arranged in the ventilation hole, and the one-way valve allows gas to enter the shell in one direction only. An air inlet pipe is fixed to the partition, and the air inlet pipe passes through the upper and lower end surfaces of the partition. A one-way valve is arranged in the air inlet pipe, and the one-way valve allows air to pass through the air inlet pipe from bottom to top. An outlet pipe is arranged above the side wall of the cavity on the upper side of the shell, and the outlet pipe passes through the shell and one end located on the inner side of the shell is placed at the lower end of the cavity on the upper side of the shell.

[0006] The vertical rod is a telescopic rod, and a compression spring is arranged between the inner and outer sleeves of the telescopic rod, and the compression spring always keeps the telescopic rod in an extended state; the lower end of the vertical rod is an L-shaped rod, which is convenient for fixed connection with the tamping machine.

[0007] A water inlet is provided at the upper end of the shell.

[0008] An atomizing nozzle is fixed on one end of the water outlet pipe located outside the shell.

[0009] The lower end of the vertical pipe is a bell mouth and is fixed with a filter screen.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. The relative movement between the tamping rod and the machine body drives the piston to move. The upward moving piston can draw air through the vertical pipe, so that the dust-containing gas is sucked into the shell cavity. When the piston moves downward, the dust is discharged into the dust bag through the air outlet to collect the dust, which greatly improves the generation of dust during tamping.

[0012] 2. Perform secondary filtration through filter screen and dust bag to greatly improve the air filtration quality;

[0013] 3. The upward moving piston can also provide positive pressure to the upper cavity of the partition through the air inlet pipe, so that the water in the upper cavity can be sprayed outward through the outlet pipe, and the dust can be evenly sprayed through the atomization effect of the atomizing nozzle, further reducing the generation of dust;

[0014] 4. By setting the vertical rod as a telescopic rod, the huge kinetic energy generated by the high-speed movement of the ramming rod can be effectively buffered, ensuring the normal movement of the piston while reducing the force on the vertical rod, thereby extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the utility model.

[0016] Figure 2 It is a front sectional view of the utility model.

[0017] Figure 3 It is a front sectional view of the housing of the utility model.

[0018] Figure 4 This is a front sectional view of the utility model installed on a compacting machine.

[0019] Figure 5 It is a right view of the utility model installed on a compacting machine. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] Depend on Figures 1 to 5 The utility model includes a shell 1, a horizontal partition 2 is arranged in the shell 1, the partition 2 divides the shell 1 into two independent cavities, a vertical pipe 3 is fixed to the lower end surface of the shell 1, a one-way valve is arranged in the vertical pipe 3, the one-way valve makes the vertical pipe 3 only take in air to the lower cavity of the shell 1 but not to discharge air, a piston 4 is arranged in the lower cavity of the shell 1, the piston 4 can move up and down along the cavity of the shell 1 and the outer edge surface is always in contact with the inner wall of the lower cavity of the shell 1, a vertical rod 5 is fixed to the lower end of the piston 4, the vertical rod 5 passes through the lower end surface of the shell 1, an air outlet 6 is opened in the lower cavity of the shell 1, a one-way valve is arranged in the air outlet 6, and the one-way valve is arranged in the one-way valve. A one-way valve is provided in the air intake pipe 8, and the one-way valve allows the air to only pass through the air intake pipe 8 from bottom to top. A water outlet pipe 9 is provided above the side wall of the upper cavity of the shell 1, and the water outlet pipe 9 passes through the shell 1 and one end of the water outlet pipe 9 located on the inner side of the shell 1 is placed at the lower end of the upper cavity of the shell 1.

[0022] The vertical rod 5 is a telescopic rod, and a compression spring is arranged between the inner and outer sleeves of the telescopic rod, and the compression spring always keeps the telescopic rod in an extended state; the lower end of the vertical rod 5 is an L-shaped rod, which is convenient for fixed connection with the tamping machine.

[0023] A water inlet 10 is provided at the upper end of the shell 1 .

[0024] An atomizing nozzle 11 is fixed to one end of the water outlet pipe 9 located outside the shell 1 .

[0025] The lower end of the vertical pipe 3 is a bell mouth and a filter screen 12 is fixed thereon.

[0026] When the utility model is in use, the shell 1 is first fixed on the body of the tamping machine so that the outlet pipe 9 faces outward, and the cross bar part at the lower end of the vertical rod 5 is fixed on the tamping rod, so that the tamping rod can drive the vertical rod 5 to move up and down synchronously. During actual installation, multiple sets of this device can be installed on the tamping machine at the same time, which can further improve the dust removal efficiency; when the tamping operation is performed, the upper cavity of the partition 2 is filled with water through the water injection port 10, and when the tamping rod moves upward relative to the body, the vertical rod 5 can move upward relative to the shell 1, and the vertical rod 5 drives the piston 4 to move upward along the lower cavity of the shell. The cavity below the piston 4 is under negative pressure and a one-way valve is provided in the air outlet 6, so that the dust-containing gas can only be sucked into the shell 1 through the vertical pipe 3, and the filter screen 12 can filter the dust in A preliminary filtration is performed, and the gas in the upper cavity of the piston 4 enters the upper cavity of the partition 2 through the air inlet pipe 8, making the cavity positively pressurized. The water on the upper side of the partition 2 is pressed out through the water outlet pipe 9 under the action of the positive pressure and is evenly sprayed below under the atomization action of the atomizer, thereby achieving spray dust reduction; when the tamping rod moves downward relative to the fuselage, the piston 4 moves downward synchronously relative to the shell 1 driven by the vertical rod 5. Since a one-way valve is provided in the vertical pipe 3, the gas in the lower cavity of the piston 4 can only be discharged outward through the air outlet 6. The dust removal bag 7 can filter the dust-containing gas more finely and leave the dust in the bag for centralized treatment. Since a one-way valve is provided in the air inlet pipe 8, the upper cavity of the piston 4 is replenished with air through the air exchange hole 13.

[0027] The utility model drives the piston 4 to move through the relative movement of the tamping rod and the body. The upwardly moving piston 4 can draw air through the vertical pipe 3, so that the dust-containing gas is sucked into the cavity of the shell 1, and when the piston 4 moves downward, it is discharged into the dust bag 7 through the air outlet 6 to collect the dust, which greatly improves the generation of dust during tamping; secondary filtration is performed through the filter screen 12 and the dust bag 7, which greatly improves the air filtration quality; the upwardly moving piston 4 can also provide positive pressure to the upper cavity of the partition 2 through the air inlet pipe 8, so that the water in the upper cavity can be sprayed outward through the water outlet pipe 9, and the dust is evenly sprayed through the atomization effect of the atomizing nozzle 11, which further reduces the generation of dust; by setting the vertical rod 5 as a telescopic rod, the huge kinetic energy generated by the high-speed movement of the tamping rod can be effectively buffered, ensuring the normal movement of the piston while reducing the force on the vertical rod 5, thereby extending the service life of the device.

Claims

1. A dust removal device for a road and bridge compactor, characterized in that: The invention comprises a shell (1), wherein a partition (2) in a horizontal direction is arranged in the shell (1), and the partition (2) divides the shell (1) into two independent cavities, an upper cavity and an lower cavity. A vertical pipe (3) is fixed to the lower end surface of the shell (1), and a one-way valve is arranged in the vertical pipe (3). The one-way valve enables the vertical pipe (3) to only take in air into the lower cavity of the shell (1) but not to discharge air. A piston (4) is arranged in the lower cavity of the shell (1), and the piston (4) can move up and down along the cavity of the shell (1) and the outer edge surface is always in contact with the inner wall of the lower cavity of the shell (1). A vertical rod (5) is fixed to the lower end of the piston (4), and the vertical rod (5) passes through the lower end surface of the shell (1). An air outlet (6) is provided in the lower cavity of the shell (1), and a one-way valve is arranged in the air outlet (6). The one-way valve is arranged in the one-way valve. The valve enables the air outlet (6) to only discharge air to the outside of the shell (1) but not to take air in. A dust bag (7) is fixed on the outside of the air outlet. A ventilation hole (13) is opened above the side wall of the lower cavity of the shell partition (2). A one-way valve is arranged in the ventilation hole (13). The one-way valve enables gas to only enter the shell (1) in one direction. An air inlet pipe (8) is fixed to the partition (2). The air inlet pipe (8) passes through the upper and lower end surfaces of the partition (2). A one-way valve is arranged in the air inlet pipe (8). The one-way valve enables air to only pass through the air inlet pipe (8) from bottom to top. A water outlet pipe (9) is arranged above the side wall of the upper cavity of the shell (1). The water outlet pipe (9) passes through the shell (1) and one end of the water outlet pipe (9) located on the inner side of the shell (1) is placed at the lower end of the upper cavity of the shell (1).

2. A dust removal device for a road and bridge compactor according to claim 1, characterized in that: The vertical rod (5) is a telescopic rod, and a compression spring is arranged between the inner and outer sleeves of the telescopic rod, so that the compression spring always keeps the telescopic rod in an extended state; the lower end of the vertical rod (5) is an L-shaped rod, which is convenient for fixed connection with the compactor.

3. A dust removal device for a road and bridge compactor according to claim 1, characterized in that: A water inlet (10) is provided at the upper end of the shell (1).

4. A dust removal device for a road and bridge compactor according to claim 1, characterized in that: An atomizing nozzle (11) is fixed to one end of the water outlet pipe (9) located outside the shell (1).

5. A dust removal device for a road and bridge compactor according to claim 1, characterized in that: The lower end of the vertical pipe (3) is a bell mouth and is fixed with a filter screen (12).

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