On-site dustproof device for civil engineering

Abstract

The utility model provides an on-site dustproof device for civil engineering. A rotating disc (20) is arranged on the end face of a base (10), a fixing shaft (30) is arranged on the end face of the rotating disc (20), a threaded sleeve (40) is arranged on the outer ring of the fixing shaft (30), a plurality of positioning rods (50) are arranged on the outer wall of the top end of the fixing shaft (30), a horizontal sliding groove (51) is formed in the middle of each positioning rod (50), and a sliding seat (60) is arranged in each horizontal sliding groove (51); a lifting sliding block (41) is arranged on the outer wall of the threaded sleeve (40) and connected with the sliding seat (60) through a connecting rod (42). The outer wall, located on the upper side of the positioning rod (50), of the fixing shaft (30) is sleeved with a cleaning disc (70). The spraying range can be widened, the spraying head can be automatically cleaned, the dustproof effect is good, and efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of dustproof equipment, in particular to an on-site dustproof device for civil engineering. Background Art

[0002] Civil engineering is a general term for the construction of various engineering facilities. At the construction site of civil engineering, a large amount of dust and dirt will inevitably be generated. Dust and dirt will be scattered in the air at the construction site and easily inhaled by construction workers, causing damage to their respiratory tract. At the same time, dust and dirt scattered in the air can easily cause environmental pollution and affect the air quality at the construction site and the surrounding area. Therefore, at the construction site of civil engineering, dust prevention equipment is needed to prevent dust and dirt from being scattered in the air.

[0003] Chinese patent document CN207376552U discloses a dust prevention device for civil engineering construction, which includes a water mist nozzle, a water pipe, a top plate, a left support plate, a right support plate, a filter, a water pump, a dust collector, a bottom plate, etc. The device can better absorb the dust generated during the construction of civil engineering, prevent environmental pollution, and reduce interference with residents. However, the water pipe and the water mist nozzle of the device cannot be effectively adjusted during actual use, resulting in a small spray range of the water mist nozzle, which in turn affects the dust prevention effect; at the same time, during the actual dust removal process, dust and dirt flying in the air are very likely to adhere to the surface of the water mist nozzle, which in turn causes the water mist nozzle to be blocked, affecting the spray effect of the device on dust and dirt, etc., reducing the stability of the equipment, and is not conducive to long-term and efficient dust prevention at the civil engineering site. Utility Model Content

[0004] In view of the problems existing in the above-mentioned prior art, the purpose of the utility model is to provide a dust prevention device for on-site civil engineering. During use, the device can effectively adjust the spray range, thereby expanding the atomization range of dust and dirt, etc., and improving the dust prevention effect; at the same time, the device can also automatically clean the nozzle during use, effectively avoiding the problem of nozzle clogging caused by dust and dirt, etc., and improving the stability of equipment use.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A field dust prevention device for civil engineering comprises a base, a turntable, a fixed shaft, a threaded sleeve, a positioning rod, a sliding seat and a cleaning disc, wherein the turntable is rotatably arranged on the end face of the base and the fixed shaft is coaxially arranged on the end face of the turntable, and the fixed shaft is fixedly connected to the turntable; a threaded sleeve is coaxially arranged on the outer ring of the fixed shaft, and the threaded sleeve is rotatably connected to the turntable and the fixed shaft; a plurality of positioning rods are evenly arranged on the outer wall of the top end of the fixed shaft around its axis, and a horizontal slide groove is provided in the middle of the positioning rod, and sliding seats are slidably arranged in the horizontal slide grooves respectively, and a nozzle is arranged on the end face of the sliding seat; a lifting slider is arranged on the outer wall of the threaded sleeve, and the lifting slider is threadedly connected to the threaded sleeve, and connecting rods are respectively arranged on the outer walls of the lifting slider corresponding to the sliding seat, and the two ends of the connecting rods are respectively rotatably connected to the outer wall of the lifting slider and the corresponding bottom surface of the sliding seat; the outer wall of the fixed shaft located on the upper side of the positioning rod is fixedly sleeved with the cleaning disc, and bristles are arranged on the bottom surface of the cleaning disc corresponding to the sliding seat.

[0007] Based on further optimization of the above scheme, the threaded sleeve is driven by a gear mechanism, specifically: the gear mechanism includes a connecting gear, a gear ring, a gear shaft, a transfer gear and a driven gear, an incomplete tooth segment is arranged on the outer ring of the turntable and a gear shaft is rotatably arranged on the base end face on one side of the turntable, the outer wall of the gear shaft is fixedly sleeved with the connecting gear and the transfer gear in sequence from bottom to top, and the connecting gear can mesh with the incomplete tooth segment; the outer wall of the bottom end of the threaded sleeve is fixedly sleeved with the driven gear and the driven gear meshes with the transfer gear; the gear ring is rotatably arranged on the end face of the base and the inner ring of the gear ring is located on the outside of the turntable and the connecting gear, the gear ring meshes with the side of the connecting gear away from the turntable and can mesh with the incomplete tooth segment.

[0008] Based on further optimization of the above solution, the radius of the turntable is greater than the outer diameter of the connecting gear, the radius of the transfer gear is greater than the outer diameter of the driven gear, and the outer diameter of the driven gear is greater than the outer diameter of the connecting gear.

[0009] Based on further optimization of the above scheme, in order to protect the gear mechanism and avoid jamming of the gear mechanism caused by a large amount of dust or dust deposition, a dustproof shell is fixedly arranged on the end face of the base, and the top surface of the dustproof shell is located on the upper side of the driven gear. The top surface of the dustproof shell is penetrated by a threaded sleeve and rotatably connected.

[0010] Based on further optimization of the above scheme, the fixed shaft is located on the outer wall of the upper side of the threaded sleeve and is fixedly sleeved with a limit block, and the bottom surface of the limit block is rotatably connected to the top of the threaded sleeve; the top of the limit block is set to a conical structure with a larger top and a smaller bottom.

[0011] Based on further optimization of the above solution, the number of the positioning rods is 3 to 6, and the number is set according to specific circumstances.

[0012] Based on further optimization of the above scheme, in order to prevent the positioning rod from shaking during the rotation of the fixed shaft and affect the stability of the entire mechanism, support rods are fixedly arranged on the front and rear side walls of the positioning rod, and an arc-shaped slider is slidably arranged on the end face of the dustproof shell and corresponding to the two support rods of the same positioning rod, and the bottom ends of the two support rods of the same positioning rod are fixedly connected to the corresponding arc-shaped sliders.

[0013] The following are the technical effects of the utility model method:

[0014] The present application realizes water mist spraying by the nozzle during the rotation process through the simultaneous rotation of the turntable, the fixed shaft and the positioning rod. Firstly, the spraying range is effectively increased, and water mist can be effectively sprayed at all angles, so as to ensure that the water mist combines with dust and dirt in the air, so as to achieve the purpose of reducing dust and dirt in the air. Secondly, the agitation generated during the rotation process causes solid particles such as dust or dirt in the air to gather, thereby improving the dust reduction efficiency. At the same time, the present application realizes the relative rotation between the threaded sleeve and the fixed shaft during the rotation of the rotating disk through the cooperation between the threaded sleeve, the lifting slider, the sliding seat and the connecting rod, and then realizes the sliding of the sliding seat in the horizontal sliding groove through the up and down movement of the lifting slider. Firstly, the spraying range of the nozzle is effectively expanded. Secondly, the self-cleaning of the nozzle by the bottom of the cleaning disk is realized through the relative movement between the sliding seat and the cleaning disk, thereby effectively avoiding the problem of nozzle clogging. The dust prevention device of the present application is simple to install as a whole and easy to operate. It can realize dust prevention treatment at various civil engineering sites and has a wide range of applications. It has high dust prevention efficiency, a large range and good effect, thereby effectively avoiding problems such as human injury and environmental damage caused by the dispersion of dust and dirt in the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the dustproof device in the embodiment of the utility model.

[0016] Figure 2 for Figure 1 AA section view.

[0017] Figure 3 for Figure 1 BB section view.

[0018] Figure 4 for Figure 1 CC section view.

[0019] Among them, 10, base; 11, dustproof shell; 12, arc-shaped slider; 20, turntable; 21, connecting gear; 22, gear ring; 23, gear shaft; 24, transfer gear; 25, driven gear; 30, fixed shaft; 31, limit block; 40, threaded sleeve; 41, lifting slider; 42, connecting rod; 50, positioning rod; 51, horizontal slide groove; 52, support rod; 60, sliding seat; 70, cleaning disc. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Embodiment 1:

[0022] A dust prevention device for civil engineering on-site includes a base 10, a turntable 20, a fixed shaft 30, a threaded sleeve 40, a positioning rod 50, a sliding seat 60 and a cleaning disc 70. The base 10 can be fixed on the ground of the construction site by fastening bolts or the like, or can be moved to the area of ​​the construction site by a mobile trolley; the turntable 20 is rotatably arranged on the end surface (such as Figure 1 As described above, the turntable 20 can be rotatably connected to the base 10 through a rotating seat coaxially arranged at the bottom; at the same time, a motor driving the rotating seat to rotate is arranged in the base 10, thereby realizing relative rotation between the turntable 20 and the base 10) and a fixed shaft 30 is coaxially arranged at the end face of the turntable 20, and the fixed shaft 30 is fixedly connected to the turntable 20 (that is, the bottom end of the fixed shaft 30 is fixedly connected to the end face of the turntable 20); a threaded sleeve 40 is coaxially arranged on the outer ring of the fixed shaft 30, and the threaded sleeve 40 is rotatably connected to the turntable 20 and the fixed shaft 30 (see Figure 1 As shown, the threaded sleeve 40 is a cylindrical structure with a through hole in the middle and a thread on the outer wall, wherein the inner wall in the middle is rotatably connected to the outer wall of the fixed shaft 30, and the bottom end of the threaded sleeve 40 is rotatably connected to the top surface of the turntable 20 located on the outer ring of the fixed shaft 30); the outer wall of the fixed shaft 30 located on the upper side of the threaded sleeve 40 is fixedly sleeved with a limit block 31, and the bottom surface of the limit block 31 is rotatably connected to the top of the threaded sleeve 40; the top of the limit block 31 is set to a conical structure with a larger upper part and a smaller lower part (such as Figure 1 as shown).

[0023] A plurality of positioning rods 50 are evenly arranged on the outer wall of the top end of the fixed shaft 30 around the central axis thereof, and a horizontal slide groove 51 is provided in the middle of the positioning rods 50. The number of the positioning rods 50 is 3 to 6, and the number is set according to the specific situation (see Figure 2As shown, in this embodiment, the number of positioning rods 50 is 4). Sliding seats 60 are slidably arranged in the horizontal slide grooves 51 (the longitudinal section of the sliding seat 60 is an "I"-shaped structure, its vertical line segment is slidably engaged in the horizontal slide groove 51, and its two horizontal line segments are slidably connected to the top surface and the bottom surface of the positioning rod 50 respectively, and the width of the horizontal line segment of the sliding seat 60 is greater than the width of the positioning rod 50, as shown in FIG. Figure 2 As shown) and the end surface of the sliding seat 60 is provided with a nozzle (as shown Figure 1 As shown, in this embodiment, two nozzles are arranged on the end surface of a sliding seat 60, and the number of nozzles can be set according to actual conditions).

[0024] The outer wall of the threaded sleeve 40 is provided with a lifting slider 41 and the lifting slider 41 is threadedly connected to the threaded sleeve 40. The outer wall of the lifting slider 41 is provided with a connecting rod 42 corresponding to the sliding seat 60 and the two ends of the connecting rod 42 are respectively rotatably connected to the outer wall of the lifting slider 41 and the bottom surface of the corresponding sliding seat 60 (see Figure 1 The threaded sleeve 40 is driven by a gear mechanism, specifically: the gear mechanism includes a connecting gear 21, a gear ring 22, a gear shaft 23, a transfer gear 24 and a driven gear 25, and an incomplete tooth segment is arranged on the outer ring of the rotating disk 20 (the length of the incomplete tooth segment is less than half of the circumference of the rotating disk 20, as shown in FIG. Figure 4 The gear shaft 23 is rotatably arranged on the end face of the base of the turntable 20, and the outer wall of the gear shaft 23 is fixedly sleeved and connected with the gear 21 and the transfer gear 24 in sequence from bottom to top (see Figure 1 As shown) and the connecting gear 21 can mesh with the incomplete tooth segment (as shown Figure 4 As shown); the outer wall of the bottom end of the threaded sleeve 40 is fixedly sleeved with the driven gear 25 and the driven gear 25 is meshed with the transfer gear 24 (as shown Figure 3 As shown); the gear ring 22 is rotatably arranged on the end surface of the base 10 and the inner ring of the gear ring 22 is located outside the turntable 20 and the connecting gear 21, and the gear ring 22 is meshed with the side of the connecting gear 21 away from the turntable 20 and can mesh with the incomplete tooth segment (as shown Figure 4 At the same time, in order to ensure that the turntable 20 rotates half a circle and the lifting slider 41 can move from the bottom end to the top end of the threaded sleeve 40, or from the top end to the bottom end, the radius of the turntable 20 is larger than the outer diameter (i.e., diameter) of the connecting gear 21, the radius of the transfer gear 24 is larger than the outer diameter (i.e., diameter) of the driven gear 25, and the outer diameter (i.e., diameter) of the driven gear 25 is larger than the outer diameter (i.e., diameter) of the connecting gear 23. Figure 1 , Figure 3 , Figure 4 shown.

[0025] In order to protect the gear mechanism and prevent a large amount of dust or dust deposition from causing the gear mechanism to get stuck, a dustproof housing 11 is fixedly arranged on the end surface of the base 10. The top surface of the dustproof housing 11 is located on the upper side of the driven gear 25. The top surface of the dustproof housing 11 is penetrated by a threaded sleeve 40 and is rotatably connected (such as Figure 1 In order to prevent the positioning rod 50 from shaking during the rotation of the fixed shaft 30 and affecting the stability of the entire mechanism, support rods 52 are fixedly arranged on the front and rear side walls of the positioning rod 50, and arc-shaped sliders 12 are slidably arranged on the end surface of the dustproof housing 11 and corresponding to the two support rods 52 of the same positioning rod 50. The bottom ends of the two support rods 52 of the same positioning rod 50 are fixedly connected to the corresponding arc-shaped sliders 12 (combined with Figure 1 and Figure 2 As shown in FIG. 1 ), the arc-shaped slider 12 can revolve around the central axis of the fixed shaft 30.

[0026] The outer wall of the fixed shaft 30 located on the upper side of the positioning rod 50 is fixedly sleeved with the cleaning disc 70 and the bottom surface of the cleaning disc 70 is provided with bristles corresponding to the sliding seat 60 .

[0027] Working principle:

[0028] When in use, first fix the entire dust prevention device at the construction site; then, start the turntable 20 to rotate, and the turntable 20 drives the sliding seat 60 to rotate through the fixed shaft 30 and the positioning rod 50, thereby realizing the rotation of the nozzle on the sliding seat 60 around the central axis of the fixed shaft 30. At the same time, during the rotation of the turntable 20: when the incomplete tooth segment of the turntable 20 corresponds to the connecting gear 21, the turntable 20 directly drives the connecting gear 21 to rotate. At this time, the connecting gear 21 drives the threaded sleeve 40 to rotate through the gear shaft 23, the transfer gear 24 and the driven gear 25, thereby realizing the upward movement of the lifting slider 41. The lifting slider 41 pushes the sliding seat 60 to slide in the horizontal slide groove 51 to the side away from the fixed shaft 30 through the connecting rod 42, thereby realizing the expansion of the spray range; when the incomplete tooth segment of the turntable 20 corresponds to the connecting gear 21, the connecting gear 21 is directly driven by the turntable 20 to rotate. At this time, the connecting gear 21 drives the threaded sleeve 40 to rotate through the gear shaft 23, the transfer gear 24 and the driven gear 25, thereby realizing the upward movement of the lifting slider 41. The lifting slider 41 pushes the sliding seat 60 to slide in the horizontal slide groove 51 to the side away from the fixed shaft 30 through the connecting rod 42, thereby realizing the expansion of the spray range; When the complete tooth segment corresponds to the gear ring 22, the turntable 20 drives the connecting gear 21 to rotate through the gear ring 22. At this time, the connecting gear 21 drives the threaded sleeve 40 to rotate in the opposite direction through the gear shaft 23, the transfer gear 24 and the driven gear 25, thereby realizing the downward movement of the lifting slider 41. The lifting slider 41 pulls the sliding seat 60 to slide in the horizontal slide groove 51 toward the side close to the fixed shaft 30 through the connecting rod 42, thereby realizing the cleaning disc 70 to clean the nozzle and avoid nozzle clogging, thereby performing reciprocating work.

[0029] Embodiment 2:

[0030] As a further optimization of the scheme of the present application, on the basis of the scheme of Example 1, in order to collect dust, dirt, etc. mixed with water mist, dust suction fans and integrated boxes (conventional models and structures in the field can be used) are evenly arranged on the end face of the base 10 and on the outer circle of the dustproof shell 11 to collect solid particles mixed with water.

[0031] Embodiment 3:

[0032] As a further optimization of the scheme of the present application, on the basis of the scheme of Example 1, a water inlet end is arranged on the side of the sliding seat 60 close to the fixed shaft 30, a coaxial water inlet pipe is arranged in the middle of the fixed shaft 30, and the water inlet pipe is connected to the water inlet ends corresponding to the sliding seat 60 through a plurality of water inlet hoses, and the bottom end of the water inlet pipe is connected to an external water storage device.

Claims

1. A dust prevention device for civil engineering, characterized in that: It includes a base, a turntable, a fixed shaft, a threaded sleeve, a positioning rod, a sliding seat and a cleaning disc, the turntable is rotatably arranged on the end face of the base and the fixed shaft is coaxially arranged on the end face of the turntable, and the fixed shaft is fixedly connected to the turntable; a threaded sleeve is coaxially arranged on the outer ring of the fixed shaft, and the threaded sleeve is rotatably connected to the turntable and the fixed shaft; a plurality of positioning rods are evenly distributed on the outer wall of the top end of the fixed shaft around its axis, and a horizontal slide groove is opened in the middle of the positioning rod, sliding seats are slidably arranged in the horizontal slide grooves respectively, and a nozzle is arranged on the end face of the sliding seat; a lifting slider is arranged on the outer wall of the threaded sleeve, and the lifting slider is threadedly connected to the threaded sleeve, and connecting rods are respectively arranged on the outer walls of the lifting slider corresponding to the sliding seat, and the two ends of the connecting rods are respectively rotatably connected to the outer wall of the lifting slider and the corresponding bottom surface of the sliding seat; the outer wall of the fixed shaft located on the upper side of the positioning rod is fixedly sleeved with a cleaning disc, and bristles are arranged on the bottom surface of the cleaning disc corresponding to the sliding seat.

2. The on-site dust prevention device for civil engineering according to claim 1, characterized in that: The threaded sleeve is driven by a gear mechanism, specifically: the gear mechanism includes a connecting gear, a gear ring, a gear shaft, a transfer gear and a driven gear, an outer ring of the turntable is provided with an incomplete tooth segment and a gear shaft is rotatably provided on the end face of the base on one side of the turntable, the outer wall of the gear shaft is fixedly sleeved with the connecting gear and the transfer gear in sequence from bottom to top, and the connecting gear can mesh with the incomplete tooth segment; the outer wall of the bottom end of the threaded sleeve is fixedly sleeved with the driven gear, and the driven gear meshes with the transfer gear; the gear ring is rotatably provided on the end face of the base, and the inner ring of the gear ring is located on the outside of the turntable and the connecting gear, the gear ring meshes with the side of the connecting gear away from the turntable and can mesh with the incomplete tooth segment.

3. The on-site dust prevention device for civil engineering according to claim 2, characterized in that: The end surface of the base is fixedly provided with a dustproof shell, the top surface of the dustproof shell is located on the upper side of the driven gear, and the top surface of the dustproof shell is penetrated by a threaded sleeve and is rotatably connected.

4. The on-site dust prevention device for civil engineering according to claim 2, characterized in that: The fixed shaft is located on the outer wall of the upper side of the threaded sleeve and is fixedly sleeved with a limit block, and the bottom surface of the limit block is rotatably connected to the top of the threaded sleeve; the top of the limit block is set as a conical structure with a larger upper part and a smaller lower part.

5. The on-site dust prevention device for civil engineering according to claim 2, characterized in that: The number of the positioning rods is 3 to 6.

6. The on-site dust prevention device for civil engineering according to claim 3, characterized in that: Support rods are fixedly arranged on the front and rear side walls of the positioning rod respectively, and an arc-shaped slider is slidably arranged on the end surface of the dustproof shell and corresponding to the two support rods of the same positioning rod, and the bottom ends of the two support rods of the same positioning rod are fixedly connected to the corresponding arc-shaped sliders.

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