Blasting dust falling device

Abstract

The utility model provides a blasting dust fall device which comprises a shell, a plurality of spray heads are evenly arranged on the top of the shell, a straight pipe is arranged at the input end of each spray head, a first hinge seat is hinged between each straight pipe and the top end of the shell, and the straight pipes are connected with an external water pump through hoses. A motor is arranged at the bottom of the shell, the output end of the motor is fixedly connected with a lead screw, a first sliding block is arranged on the lead screw in a sliding mode, the first sliding block is fixedly connected with a plurality of second hinge seats, and a connecting rod with a telescopic structure is hinged between each second hinge seat and each straight pipe; the water curtain is diffused through the guide plate, the coverage area of the water curtain is increased, the dust falling effect is improved, the first sliding block drives the connecting rod to drive the straight pipe to rotate along the first hinge seat, the water curtain spraying angle of the spray head is adjusted, the water curtain coverage space is increased, the water curtain coverage capacity is improved, and the dust falling effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of blasting technology, concretely to a blasting dust falling device. BACKGROUND

[0002] With the wide application of engineering blasting, the negative effects of blasting are gradually increasing, such as: a large amount of dust is generated in the blasting process, which not only pollutes the environment and hinders the line of sight of the staff, but also easily causes harm to the on-site staff's body. Long-term work in such an environment will seriously harm the respiratory tract and lungs. The existing means is usually: using a spraying device to convert water droplets into mist, and then spraying it to the place about to be blasted or where the blasting occurs, so as to suppress the dust generated during blasting. If the blasting occurs in a relatively closed environment (such as indoors, tunnels, etc.), because its ventilation efficiency is low, the dust is relatively slow to escape, and the commonly used spraying device basically meets the use requirements. However, if the blasting occurs in the open air or outdoors, the dust generated will change the direction and height of the drift at any time with the air and wind direction, and the existing spraying device usually cannot adjust the angle in real time according to the actual needs, and the spraying coverage range is often limited to a relatively fixed height and angle, and the uniformity of the spread to all directions is not enough, so that full-range rapid large-area spraying operation cannot be carried out at the blasting site, and multiple sets of devices often need to be started at the same time, the overall dust suppression efficiency is low, and the dust suppression effect is not ideal, which will affect the construction efficiency. SUMMARY

[0003] The utility model provides a kind of blasting dust falling device, it is to solve the technical problem that the dust suppression effect of the spraying device in the prior art is not good due to insufficient coverage space.

[0004] The utility model provides a kind of blasting dust falling device, including shell, the shell top is uniformly provided with multiple spray heads, each spray head input end is provided with straight pipe, each straight pipe is hinged with first hinged seat between shell top end, and the straight pipe is connected with external water pump by hose;

[0005] The shell bottom is equipped with motor, and the output end of the motor is fixedly connected with a lead screw. A first sliding block is slidably arranged on the lead screw. The first sliding block is fixedly connected with multiple second hinged seats. Each second hinged seat is hinged with a connecting rod having an extension structure between each straight pipe.

[0006] Multiple nozzles are fixedly connected to the output end of the spray head. The nozzles are arranged in a ring array. Each nozzle is provided with a guide plate at the output end.

[0007] Further, the second sliding block is provided on the nozzle and extends a plurality of supporting rods towards the nozzle output end, and the supporting rods are fixedly connected with the flow guide plate at the end away from the second sliding block.

[0008] Further, a stepped portion is arranged on the nozzle output end, the ring diameter of the stepped portion is smaller than that of the nozzle, the second sliding block is sleeved on the stepped portion, and a limiting ring is arranged on the output end of the stepped portion.

[0009] Further, the nozzle is sleeved with a sliding sleeve, the sliding sleeve extends towards the jet direction of the nozzle, a plurality of connecting rods connected with the second sliding block are arranged on the end of the sliding sleeve away from the nozzle, and a bolt is arranged on the end of the sliding sleeve close to the nozzle.

[0010] Further, the flow guide plate is a cross flow guide plate, and a conical flow guide plate is arranged on the end of the flow guide plate facing the nozzle.

[0011] Further, a limiting table is arranged on the top of the lead screw.

[0012] Further, the straight pipe is fixedly connected with a ring hoop, the bottom of the ring hoop is hingedly connected with the first hinge seat, the top of the ring hoop is hingedly connected with the connecting rod, and the connecting rod is a telescopic rod.

[0013] Further, the straight pipe is slidably provided with a ring hoop, a sliding groove is arranged in the bottom of the ring hoop, the straight pipe is fixedly connected with a guide rail, the sliding groove is slidably arranged on the guide rail, the connecting rod is hingedly connected with the ring hoop, and the bottom of the guide rail is hingedly connected with the first hinge seat.

[0014] The utility model at least has following beneficial effect:

[0015] The utility model provides a kind of blasting dust falling device, water curtain is diffused by flow guide plate 10, the coverage area of water curtain is improved, dust falling effect is improved, connecting rod is driven to drive straight pipe 3 along first hinge seat 4 by first sliding block 7, the angle of the jet water curtain of nozzle 2 is further adjusted, water curtain coverage space is increased, the coverage capacity of water curtain is improved, dust falling effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a kind of blasting dust falling device's mechanism schematic view described in the utility model;

[0017] Figure 2 It is the mechanism schematic view of the nozzle of a kind of blasting dust falling device described in the utility model;

[0018] Figure 3 It is the structure schematic view of the nozzle of a kind of blasting dust falling device described in the utility model;

[0019] Figure 4A guide vane of the blasting dust falling device;

[0020] Figure 5 A side view schematic diagram of the spray head of the blasting dust falling device;

[0021] In the figure: 1, shell; 2, spray head; 3, straight pipe; 4, first hinged seat; 5, motor; 6, screw rod; 7, first sliding block; 8, second hinged seat; 9, nozzle; 10, guide vane; 11, ring hoop; 12, telescopic rod; 13, step part; 14, limiting ring; 15, second sliding block, 16, support rod; 17, conical guide vane; 18, sliding sleeve; 19, connecting rod; 20, hose. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0023] Referring to Figure 1 With Figure 2 The utility model provides a kind of blasting dust falling device, including shell 1, the shell 1 is tubular side wall and bottom surface and is enclosed, the shell 1 top is provided with multiple spray heads 2, the spray head input end is provided with straight pipe 3, the shell 1 bottom edge is uniformly provided with multiple first hinged seats 4, each described first hinged seat 4 is fixedly connected in the middle part of straight pipe 3, each described straight pipe 3 input end is connected external water pump by hose, the shell 1 bottom is provided with motor 5, and the output of motor 5 is vertically arranged upwards;The output of motor 5 is fixedly connected with screw rod 6, and first sliding block 7 is slidably arranged on screw rod 6, and first sliding block 7 is engaged with screw rod 6, and the side surface of first sliding block 7 is provided with multiple second hinged seats 8, and each described second hinged seat 8 is connected with each corresponding straight pipe 3 by connecting rod. Annular array is communicated with multiple nozzles 9 on each described spray head 2, and the extension direction of each described nozzle 9 is same with the extension direction of spray head 2. The output of each described nozzle 9 is provided with guide vane 10. Water curtain is diffused by guide vane 10, the coverage area of water curtain is improved, the dust falling effect is improved, the angle of the spray water curtain of spray head 2 is adjusted by first sliding block 7 driving connecting rod and then driving straight pipe 3 to rotate along first hinged seat 4, the coverage capacity of water curtain is improved, and the dust falling effect is improved. The distance between second hinged seat 8 and first hinged seat 4 changes with the up-and-down movement of first sliding block 7 along screw rod 6, so the connecting rod should have the function of stretching and contracting with the rotation of second hinged seat 8.

[0024] As an example, the straight pipe 3 is externally fixed with a ring 11, the top of the ring 11 is hinged with the first hinge seat 4, the bottom of the ring 11 is hinged with the first hinge seat 4, the connecting rod is a telescopic rod 12, and the sum of the square of the horizontal distance and the square of the vertical distance from the first hinge seat 4 to the output end of the motor 5 is not greater than the square of the maximum length value of the telescopic rod 12.

[0025] As an example, the connecting rod can not have a telescopic function, and the telescopic function is realized by the sliding of the ring 11 (not shown in the example), that is, the straight pipe 3 is externally provided with a ring 11, the top of the ring 11 is hinged with the connecting rod, and the bottom of the straight pipe 3 extends vertically downward to serve as a guide rail for hinging the first hinge seat 4. The ring extends axially, and the bottom of the ring 11 is provided with a sliding groove matched with the guide rail, so that the sliding groove can be slidably connected on the connecting plate.

[0026] As an optional embodiment, a limiting table is arranged at the top of the lead screw 6 for the maximum stroke of the first sliding block 7.

[0027] Referring to Figure 3 As an optional embodiment, the output end of the nozzle 9 is inwardly contracted to form a stepped portion 13, the stepped portion 13 extends in the output direction of the nozzle 9, the end of the stepped portion 13 away from the nozzle 9 is provided with a limiting ring 14, and the ring diameter of the stepped portion 13 is smaller than the ring diameter of the nozzle 9. The stepped portion 13 is tubular, the stepped portion 13 is sleeved with a second sliding block 15, the side of the second sliding block 15 away from the nozzle is fixedly connected with four support rods 16, each support rod 16 extends in the direction of the jet of the nozzle, the sum of the length of the second sliding block 15 and the length of the support rod 16 is greater than the sum of the length of the stepped portion 13 and the length of the limiting ring 14, and the end of the support rod 16 away from the second sliding block 15 is fixedly connected with the flow guide plate 10. The flow of water is cut by the flow guide plate 10 away from the nozzle 9, so that the originally columnar water flow is dispersed, the second sliding block 15 can be moved on the stepped portion 13, so that the distance between the flow guide plate 10 and the output port of the nozzle 9 can be controlled. The distance between the flow guide plate 10 and the output port of the nozzle 9 can be adjusted according to the dust condition of the explosion or the pre-estimate of the triage condition. The closer the distance between the flow guide plate 10 and the output port of the nozzle 9, the denser the water curtain, but the jet distance is shorter; the farther the distance between the flow guide plate 10 and the output port of the nozzle 9, the relatively looser the water curtain at a close distance, but the jet distance is farther, and the dust-settling range is larger.

[0028] Referring to Figure 4As an optional embodiment, the guide plate 10 is a cross guide plate, the guide plate 10 is a guide plate 10 integrally formed by vertically intersecting two isosceles trapezoidal resin plates along a center line, the parallel edges of the trapezoidal shorter side intersect to form an input end of the guide plate 10, the input end of the guide plate 10 is arranged to face the nozzle 9, and the input end of the guide plate 10 is fixedly connected with a conical guide plate 17. The conical guide plate 17 can make the water curtain more dispersed, and improve the dust falling effect.

[0029] Referring to Figure 5 As an optional embodiment, the nozzle 9 is slidably arranged with a sliding sleeve 18, a plurality of connecting rods 19 are axially arranged in the sliding sleeve 18, one end of each connecting rod 19 is fixedly connected to an end edge of the sliding sleeve 18 away from the nozzle 9, the other end of each connecting rod 19 is fixedly connected to a corresponding second sliding block 15, each connecting rod 19 is arranged radially along the sliding sleeve 18, a threaded hole is formed in the sliding sleeve 18 close to the nozzle, a bolt is engaged in the threaded hole, and the relative sliding of the sliding sleeve and the nozzle is limited by the bolt.

Claims

1. A blasting dust falling device, comprising a shell (1), the top of the shell (1) is uniformly provided with a plurality of spray heads (2), characterized in that, Each said nozzle (2) input end is provided with a straight pipe (3), each said straight pipe (3) is hinged with a first hinge seat (4) between the top end of the shell (1), the straight pipe (3) is connected with an external water pump through a hose; The bottom of the shell (1) is provided with a motor (5), the output end of the motor (5) is fixedly connected with a lead screw (6), the lead screw (6) is slidably provided with a first sliding block (7), the first sliding block (7) is fixedly connected with a plurality of second hinge seats (8), each said second hinge seat (8) is hinged with a connecting rod having a telescopic structure between each said straight pipe (3); The output end of the nozzle (2) is fixedly connected with a plurality of nozzles (9), the nozzles (9) are arranged in a ring array, the output end of each said nozzle (9) is provided with a guide vane (10).

2. The blasting dust suppression device of claim 1, wherein, The second sliding block (15) is slidably provided on the nozzle (9), the second sliding block (15) extends a plurality of support rods (16) towards the output end of the nozzle (9), the end of the support rod (16) away from the second sliding block (15) is fixedly connected with the guide vane (10).

3. The blasting dust suppression device of claim 2, wherein, The output end of the nozzle (9) is provided with a stepped portion (13), the ring diameter of the stepped portion (13) is smaller than that of the nozzle (9), the second sliding block (15) is sleeved on the stepped portion (13), and the output end of the stepped portion (13) is provided with a limiting ring (14).

4. The blasting dust suppression device of claim 3, wherein, The nozzle (2) is sleeved with a sliding sleeve (18), the sliding sleeve (18) extends towards the spraying direction of the nozzle (2), the end of the sliding sleeve (18) away from the nozzle (2) is provided with a plurality of connecting rods (19) connected with the second sliding block (15) in the radial direction, and the end of the sliding sleeve (18) close to the nozzle (2) is provided with a bolt.

5. The blasting dust suppression device of claim 2, wherein, The guide vane (10) is a cross guide vane, one end of the guide vane (10) facing the nozzle is provided with a tapered shunt plate (17).

6. The blasting dust suppression device of claim 1, wherein, The top of the lead screw (6) is provided with a limiting table.

7. The blasting dust suppression device of claim 1, wherein, The straight pipe (3) is fixedly connected with a ring hoop (11) outside, the bottom of the ring hoop (11) is hinged with the first hinge seat (4), the top of the ring hoop (11) is hinged with the connecting rod, and the connecting rod is a telescopic rod (12).

8. The blasting dust suppression device of claim 1, wherein, The straight pipe (3) is slidably provided with a ring hoop (11), the bottom of the ring hoop is provided with a sliding groove, the straight pipe (3) is fixedly connected with a guide rail, the sliding groove is slidably provided in the guide rail, the connecting rod is hinged with the ring hoop (11), and the bottom of the guide rail is hinged with the first hinge seat (4).

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