Dust suppression equipment for foundation pit excavation construction

Abstract

The invention relates to the technical field of foundation pit dust suppression, and discloses a dust suppression device for foundation pit excavation construction, the dust suppression device comprises two sliding rails, the two sliding rails are arranged on the two opposite sides of a foundation pit respectively, each sliding rail comprises a main rail and a branch rail, the main rail extends in the length direction of the foundation pit, and the branch rail is supported between the bottom of the foundation pit and the main rail; the walking frames move on the sliding rails in the extending direction of the sliding rails and can walk back and forth between the main rails and the branch rails, and the walking frames on the two sliding rails are in one-to-one correspondence; the connecting piece is connected between the walking frames corresponding to the two sliding rails; the dust suppression curtains are connected between every two adjacent connecting pieces; the power mechanism is used for driving the walking frame to move on the sliding rail, so that the walking frame can gather towards the branch rail or disperse towards one end, far away from the branch rail, of the main rail; when the walking frame gathers towards the supporting rail, the dust suppression curtain is driven to be folded and stored; when the walking frame is dispersed towards the main rail, the dust suppression curtain is driven to be unfolded for use. According to the invention, the convenience of cleaning the dustproof awning can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of foundation pit dust suppression, and in particular to a dust suppression device for foundation pit excavation construction. Background Art

[0002] During the excavation of the foundation pit, dust will be generated, which will pollute the surrounding environment and cause inconvenience to the travel of nearby residents. At present, in order to deal with the dust problem, a dust-proof canopy will be set up on the foundation pit to shield the foundation pit and reduce the dust overflowing into the external environment of the foundation pit.

[0003] Dust-proof canopies tend to accumulate a lot of dust after long-term use, which has an adverse effect on the light transmittance of the dust-proof canopy. However, since the existing dust-proof canopy is usually suspended on the top of the foundation pit, it is difficult to clean the dust-proof canopy. Summary of the invention

[0004] In order to improve the convenience of cleaning the dust-proof canopy, the present application provides a dust suppression device for foundation pit excavation construction.

[0005] The present application provides a dust suppression device for foundation pit excavation construction, which adopts the following technical solution: A dust suppression device for foundation pit excavation construction, comprising: There are two slide rails, which are respectively arranged on opposite sides of the foundation pit, each of which includes a main rail and a branch rail, the main rail extends along the length direction of the foundation pit, and the branch rail is supported between the bottom of the foundation pit and the main rail; There are multiple walking frames, which move on the slide rail along the extension direction of the slide rail, can move back and forth between the main rail and the branch rail, and the walking frames on the two slide rails correspond to each other one by one; A connecting member connected between the walking frames corresponding to the two slide rails; A dust suppression curtain is connected between each two adjacent connecting members; The power mechanism is used to drive the traveling frame to move on the slide rail, so that the traveling frame can gather toward the branch rail or disperse toward the main rail away from one end of the branch rail; when the traveling frame gathers toward the branch rail, it drives the dust suppression curtain to be folded and stored; when the traveling frame disperses toward the main rail, it drives the dust suppression curtain to be unfolded and used.

[0006] By adopting the above technical solution, the dust suppression equipment realizes the automatic unfolding and folding of the dust suppression curtain through the cooperation of the slide rail, the traveling frame, the connecting piece, the dust suppression curtain and the power mechanism. During the foundation pit excavation construction process, it can effectively reduce the pollution of the surrounding environment by dust and the impact on the travel of surrounding residents. At the same time, through the movement of the traveling frame on the slide rail, the dust suppression curtain can be driven to move to the side of the foundation pit, thereby facilitating the cleaning of the dust suppression curtain and improving the maintenance convenience of the equipment.

[0007] Optionally, the thickness of the main rail and the branch rail are consistent, and the junction between the main rail and the branch rail is a junction, and the junction is arc-shaped; the walking frame includes a main frame and a rotating wheel, the main frame walks on the slide rail, the rotating wheel is rotatably connected to the main frame and abuts against the inner side of the slide rail, and the extension direction of the rotation axis of the rotating wheel is parallel to the width direction of the slide rail; when the walking frame passes through the junction, the main frame rotates around the rotating wheel axis so as to be able to pass through the junction.

[0008] By adopting the above technical solution, through the arc-shaped intersection and through the cooperation between the intersection and the rotating wheel, the main frame can move more smoothly between the main rail and the branch rail.

[0009] Optionally, the walking frame also includes a first roller rotatably connected to the main frame, the rotation axis of the first roller is parallel to the rotation axis of the rotating wheel, and the outer peripheral side of the slide rail is provided with a first sliding groove along its own length direction for the first roller to press into and slide, and the first roller and the rotating wheel jointly clamp the slide rail.

[0010] By adopting the above technical solution, the first roller and the rotating wheel jointly clamp the slide rail, so that the stability of the walking frame when moving on the slide rail can be improved.

[0011] Optionally, the walking frame further comprises a second roller rotatably connected to the main frame, the rotation axis of the second roller is perpendicular to the rotation axis of the first roller, the inner circumference of the slide rail is provided with a second slide groove along its length direction for the second roller to abut and slide, and the second roller abuts against the slide rail on the side of the second slide groove close to the dust suppression curtain. By adopting the above technical solution,.

[0012] By adopting the above technical solution, the provision of the second roller not only improves the stability of the walking frame, but also tightens the connecting member by abutting against the inner side of the second sliding groove.

[0013] Optionally, the main frame has an extension rod extending away from the dust suppression curtain, and the extension direction of the extension rod coincides with the direction of the first roller axis; The junction portion is provided with a rotating frame moving along the length extension direction thereof, and the rotating frame includes a power source and a push rod; the power source moves along the length direction of the junction portion to the side of the junction portion away from the dust suppression curtain, the push rod is connected to the output end of the power source, and is driven to rotate by the power source, the rotation axis of the power source is parallel to the first roller, and the length extension direction of the push rod is perpendicular to the rotation axis of the power source; When the power source moves to one end of the junction close to the main rail, the rotating frame is in the first state, and the power source can drive the push rod to rotate to the interception position; the interception position is characterized by the push rod cutting off the path of the extension rod on the main rail passing through the junction; When the power source moves to the junction close to one end of the branch rail, the rotating frame is in the second state, and the power source can drive the push rod to rotate to the supporting position, and the supporting position is characterized by the push rod supporting the extension rod at the top of the branch rail.

[0014] By adopting the above technical solution, when the push rod is kept in the intercepting position, it can prevent the traveling frame on the main rail from passing through the intersection, so that the traveling frame on the main rail is gathered at one end of the main rail close to the intersection when it is stored. Compared with the case where all the traveling frames are stored on the branch rail, it has a faster response speed to unfold the dust suppression curtain.

[0015] Optionally, when the push rod is in the intercepting position, the power source drives the push rod to rotate, so that the push rod can be rotated to push the extension rod through the junction from the side of the intercepted extension rod away from the junction, thereby assisting the walking frame to pass through the junction from the main rail.

[0016] By adopting the above technical solution, the push rod can be switched from a state of preventing the walking frame from moving to a state of pushing the walking frame to move by rotating, thereby improving the flexibility of the push rod.

[0017] Optionally, when the push rod is in the supporting position, the power source drives the push rod to rotate, so that the push rod can push the supported extension rod to pass through the junction, thereby assisting the walking frame to pass through the junction from the branch rail.

[0018] By adopting the above technical solution, the push rod can support the walking frame on the support rod when it is in the supporting position, and can assist the walking frame to pass from the branch rail to the main rail when it rotates.

[0019] Optionally, the center of the push rod is connected to the output end of the power source.

[0020] Optionally, the power mechanism includes a pull rope and a winding piece; the winding piece is arranged at both ends of the pull rope and is respectively connected to the two ends of the pull rope, the winding piece is used to reel in and unreel the pull rope, and the pull rope is also connected to the walking frame located at the end; the dust suppression equipment also includes a support frame, and a fixed pulley is rotatably connected to the support frame for the pull rope to pass through.

[0021] By adopting the above technical solution, the cooperation between the support frame and the fixed pulley provides a stable support and guide structure for the pull rope, so that the pull rope can remain smooth and stable during the winding and unwinding process.

[0022] In summary, the present application includes at least one of the following beneficial effects: 1. The dust suppression curtain can be unfolded and folded by the cooperation of the slide rail, the traveling frame, the connecting parts, the dust suppression curtain and the power mechanism, so as to reduce the dust in the surrounding environment during the foundation pit excavation construction process. The traveling frame can drive the dust suppression curtain to move to the side of the foundation pit, which improves the convenience of cleaning the dust suppression curtain. 2. A rotating frame is arranged at the junction to block the traveling frame on the main rail when there is no need to move the dust suppression curtain to the branch rail for cleaning. When the dust suppression curtain needs to be moved to the branch rail, the traveling frame is assisted to pass through the junction by rotating the push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 3 It is a schematic diagram of the structure of a single slide rail in an embodiment of the present application; Figure 4 It is a schematic diagram of the structure of the slide rail after being cut and matched with the walking frame in the embodiment of the present application; Figure 5 It is a schematic diagram of the structure of the walking frame in the embodiment of the present application; Figure 6 yes Figure 3 A schematic diagram of the enlarged structure at B in the middle; Figure 7 is a schematic diagram of the structure when the push rod is in the intercepting position in the embodiment of the present application; Figure 8 It is a schematic diagram of the structure when the push rod is in the supporting position in the embodiment of the present application.

[0024] Explanation of the reference numerals: 1. slide rail; 101. main rail; 102. branch rail; 2. walking frame; 21. main frame; 211. main board; 212. angle plate; 213. first axis; 214. second axis; 215. rotating shaft; 22. rotating wheel; 23. first roller; 24. second roller; 25. extension rod; 3. connecting piece; 4. dust suppression curtain; 5. power mechanism; 51. pull rope; 52. winding piece; 6. junction; 7. first slide groove; 8. second slide groove; 9. rotating frame; 91. power source; 92. push rod; 10. support frame; 11. fixed pulley; 12. installation cavity; 13. mesh; 14. groove; 15. telescopic source; 16. walking unit. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-8 This application is described in further detail.

[0026] The present application embodiment discloses a dust suppression device for foundation pit excavation construction. Figure 1 The dust suppression equipment for foundation pit excavation construction includes a slide rail 1, a walking frame 2, a connecting piece 3, a dust suppression curtain 4 and a power mechanism 5.

[0027] Reference Figure 1 and Figure 2 , there are two slide rails 1, which are installed in the foundation pit, and the two slide rails 1 are installed on opposite sides of the foundation pit. The traveling frame 2 moves in the slide rail 1 along the extension direction of the slide rail 1, and each slide rail 1 has multiple traveling frames 2, and the traveling frames 2 on the two slide rails 1 correspond to each other. The connecting member 3 is a steel strand, and the connecting member 3 is hung between the corresponding two traveling frames 2, and the connecting members 3 are distributed along the extension direction of the length of the slide rail 1. A dust suppression curtain 4 is connected between each two adjacent connecting members 3, and the dust suppression curtain 4 is made of a flexible dense mesh with light transmittance and air permeability, and the dust suppression curtain 4 is tied to the connecting member 3. The power mechanism 5 is installed in the foundation pit and cooperates with the traveling frame 2 to drive the traveling frame 2 to move on the slide rail 1, thereby driving the dust suppression curtain 4 to be unfolded or folded and stored through the movement of the traveling frame 2. When the dust suppression curtain 4 is unfolded, it can cover the side and top of the foundation pit. When the dust suppression curtain 4 is folded and stored, the top of the foundation pit is exposed, so that construction materials and equipment can be delivered into the foundation pit.

[0028] Reference Figure 3 Specifically, each slide rail 1 includes a main rail 101 and a branch rail 102, and both the main rail 101 and the branch rail 102 are in the shape of long strips. The main rail 101 extends horizontally along the length direction of the foundation pit, and the two ends of the main rail 101 are close to the opposite ends of the foundation pit, and a plurality of columns supported in the foundation pit are installed on the side of the main rail 101 in the two slide rails 1 that are away from each other. There are two branch rails 102, and the top ends of the two branch rails 102 are respectively connected to the two ends of the main rail 101 that are away from each other. The branch rails 102 extend vertically, and the bottom ends of the branch rails 102 are fixed to the bottom surface of the foundation pit. The main rail 101 and the branch rail 102 together form a U-shaped structure with an opening toward the bottom of the foundation pit, and the cavity enclosed by the main rail 101 and the branch rail 102 is the installation cavity 12. It should be noted that the junction of the top of the branch rail 102 and the end of the main rail 101 is a quarter-circular arc-shaped junction 6, so that the main rail 101 and the branch rail 102 have a smooth transition. The thicknesses of the main rail 101 , the branch rail 102 and the boundary portion 6 are all consistent.

[0029] Reference Figure 3 and Figure 4 A first slide groove 7 is provided on the outer side of the slide rail 1 facing away from the installation cavity 12, and the first slide grooves 7 on the main rail 101, the interface 6, and the branch rail 102 are sequentially connected along the extension direction of the slide rail 1. A second slide groove 8 is provided on the inner side of the slide rail 1 facing the installation cavity 12, and the second slide grooves 8 on the main rail 101, the interface 6, and the branch rail 102 are sequentially connected along the extension direction of the slide rail 1.

[0030] Reference Figure 2 , Figure 4 and Figure 5 Each walking frame 2 includes a main frame 21, a rotating wheel 22, a first roller 23 and a second roller 24. Specifically, the main frame 21 includes a main board 211, an angle plate 212, a first shaft 213, a second shaft 214 and a rotating shaft 215. The main board 211 is in the shape of a square plate with a plate surface extending vertically. The angle plates 212 are fixed at the four corners of the main board 211 and extend in a direction perpendicular to the plate surface of the main board 211. The first shaft 213, the second shaft 214 and the rotating shaft 215 are all in the shape of circular shafts. Figure 1 The first shaft 213 is fixed at the middle of the top of the main board 211 and extends in a direction perpendicular to the surface of the main board 211. The rotating shaft 215 is fixed at the middle of the bottom of the main board 211 and extends in a direction perpendicular to the surface of the main board 211. The second shaft 214 is fixed at one end of the rotating shaft 215 away from the main board 211. The second shaft 214 is perpendicular to the rotating shaft 215 and extends toward the first shaft 213. The rotating wheel 22 is coaxially rotatably sleeved on the outer wall of the rotating shaft 215. The first roller 23 is coaxially rotatably sleeved on the outer wall of the first shaft 213. The second roller 24 is coaxially rotatably sleeved on the outer wall of the second shaft 214 away from the rotating shaft 215.

[0031] When the walking frame 2 cooperates with the slide rail 1, the main board 211 is relative to the side of the current slide rail 1 facing the other slide rail 1. The first roller 23 slides into the first slide groove 7, and the first roller 23 abuts on the groove wall of the first slide groove 7 near the second slide groove 8. There is a gap between the first roller 23 and the inner side wall of the first slide groove 7 on both sides along its own axis. The second roller 24 slides into the second slide groove 8, and the second roller 24 abuts on the inner side wall of the second slide groove 8 near the other slide rail 1, and there is a gap between the side of the second roller 24 away from the other slide rail 1 and the inner side wall of the second slide groove 8 away from the other slide rail 1. At the same time, the rotating wheel 22 abuts on the outer wall of the slide rail 1 facing the installation cavity 12, so that the rotating wheel 22 and the first roller 23 clamp the slide rail 1 together. When the walking frame 2 moves on the slide rail 1, the first roller 23, the second roller 24 and the rotating wheel 22 all roll on the slide rail 1.

[0032] Reference Figure 2 and Figure 3 A hanging ring is provided on the side of the main board 211 away from the installation cavity 12, and the connecting member 3 is hung on the hanging ring through a hook. The walking frame 2 is straightened between the two opposite walking frames 2 by the contact between the second roller 24 and the inner wall of the second slide groove 8.

[0033] Reference Figure 1 and Figure 3The traveling frame 2 on the slide rail 1 is divided into two groups of traveling units 16 with the center of the main rail 101 as the boundary. The traveling frames 2 in each group of traveling units 16 are linked by the connection between the dust suppression curtain 4 and the connecting piece 3. The traveling frames 2 close to each other in the two groups of traveling units 16 are not connected by the dust suppression curtain 4. The traveling frames 2 far away from the center of the main rail 101 in the two groups of traveling units 16 are close to the bottom ends of the two branch rails 102 respectively. The connecting piece 3 on the traveling frames 2 close to the center of the main rail 101 in the two groups of traveling units 16 is connected with a mesh 13. The mesh 13 is connected to the side of the connecting piece 3 close to the other traveling unit 16, and the mesh 13 is made of a mesh material with a certain hardness and supporting force. When the dust suppression curtain 4 is fully unfolded, there is a gap between the dust suppression curtains 4 close to each other in the two groups of traveling units 16, and the mesh 13 is used to fill the gap between the dust suppression curtains 4.

[0034] Reference Figure 1 and Figure 3 The power mechanism 5 corresponds to the travel unit 16. The power mechanism 5 includes a pull rope 51 and a reel 52. The pull rope 51 is fixed to the travel frame 2 closest to the center of the main rail 101 in the travel unit 16. The reel 52 is installed at the bottom of the foundation pit. Each pull rope 51 corresponds to two reel 52. The two reel 52 are respectively connected to both ends of the pull rope 51 to reel and unreel the pull rope 51. When one of the two reel 52 is reeling, the other is unreeling. The two reel 52 are respectively located near the center of the main rail 101 and near the branch rail 102. In this embodiment, the reel 52 is a winch.

[0035] Reference Figure 1 and Figure 3 Specifically, when the foundation pit needs to be shielded and dust suppressed, the traveling frames 2 on the branch rail 102 are evenly spaced along the height direction of the branch rail 102, and the dust suppression curtains 4 corresponding to the branch rail 102 remain in an unfolded state, so that the dust suppression curtains 4 opposite to the branch rail 102 shield the side of the foundation pit. At the same time, the winding member 52 close to the branch rail 102 is unwound, and the winding member 52 close to the center of the main rail 101 is wound up, so as to drive the traveling frames 2 connected to the pull ropes 51 in the two groups of traveling units 16 to move toward the center of the main rail 101, so as to drive the remaining traveling frames 2 on the main rail 101 to move toward the center of the main rail 101 through the dust suppression curtains 4, so that each dust suppression curtain 4 is unfolded to shield the top of the foundation pit.

[0036] When the top of the foundation pit needs to be opened, the dust suppression curtain 4 corresponding to the branch rail 102 remains in the unfolded state. At the same time, the reel 52 near the branch rail 102 is reeled, and the reel 52 near the center of the main rail 101 is unreeled, so as to drive the walking frames 2 connected to the pull rope 51 in the two groups of walking units 16 to move on the main rail 101 respectively toward the two ends of the main rail 101, so that the walking frames 2 push the adjacent walking frames 2 to move together in turn, until the walking frames 2 on the main rail 101 in the walking unit 16 are abutted in turn along the length direction of the main rail 101, and the walking frames 2 on the main rail 101 in the two groups of walking units 16 are respectively stored at the two ends of the main rail 101, at which time the dust suppression curtain 4 corresponding to the walking frames 2 on the main rail 101 are folded and stored to expose the top of the foundation pit.

[0037] When it is necessary to clean the dust-suppressing curtain 4 that has accumulated dust, after the traveling frame 2 on the main rail 101 is gathered and stored, the reel 52 near the branch rail 102 continues to reel, and the reel 52 near the center of the branch rail 102 continues to unwind, so that the traveling frame 2 connected to the pull rope 51 pushes the remaining traveling frames 2 on the main rail 101 to slide onto the branch rail 102 through the junction 6, thereby driving the dust-suppressing curtain 4 to move to the side of the foundation pit and being able to move downward to lower the height, so as to improve the convenience of cleaning and replacing the dust-suppressing curtain 4. When cleaning the dust-suppressing curtain 4, the dust-suppressing curtain 4 can be removed for cleaning, or a high-pressure water gun can be used to spray water on the dust-suppressing curtain 4 located on the side of the foundation pit for cleaning.

[0038] Reference Figure 3 and Figure 6 In order to support the pull rope 51, a support frame 10 is set up near the branch rail 102 and the center of the main rail 101 in the foundation pit, and the support frame 10 is located between the slide rails 1 on both sides of the foundation pit, and each slide rail 1 has a support frame 10 corresponding to itself. The top of the support frame 10 is rotatably connected to a fixed pulley 11, and the pull rope 51 is sequentially wound around the fixed pulleys 11 near the branch rail 102 and the main rail 101 to support and guide the movement of the pull rope 51.

[0039] Reference Figure 7 In addition, when the walking frame 2 passes through the intersection 6, the rotating wheel 22 abuts against the inner side of the intersection 6 toward the installation cavity 12 and is coaxial with the intersection 6, and the first roller 23 rolls along the arc direction of the intersection 6 on the outer side of the intersection 6 away from the installation cavity 12, causing the main frame 21 to rotate around the axis of the rotating wheel 22, so that the walking frame 2 passes through the intersection 6.

[0040] Reference Figure 4 and Figure 7In order to improve the power of the walking frame 2 to pass through the junction 6, an extension rod 25 is fixed to the main frame 21 at one end of the first axis 213 away from the main board 211, and a rotating frame 9 is moved along the arc extension direction of the junction 6 away from the other slide rail 1. Specifically, the extension rod 25 is in the shape of a circular axis coaxial with the first axis 213, and the extension rod 25 extends from the side of the slide rail 1 away from the other slide rail 1 in a direction away from the main board 211.

[0041] The rotating frame 9 includes a power source 91 and a push rod 92. The power source 91 is a rotating motor. The power source 91 has a convex column on its base. The outer wall of the interface 6 is provided with a groove 14 extending along its own circumference. The convex column slides in the groove 14 to drive the rotating frame 9 to move relative to the interface 6. A telescopic source 15 is hinged on the slide rail 1. In this embodiment, the telescopic source 15 is an electric telescopic rod. The base end of the telescopic source 15 is hinged on the support rail 102. The telescopic end of the telescopic source 15 is hinged on the power source 91 base. When the telescopic end of the telescopic source 15 is extended, the power source 91 is driven to move, so as to drive the convex column to slide in the groove 14. The push rod 92 is in the shape of a straight rod. The middle part of the push rod 92 is fixed to the output end of the power source 91. The axis of the output end of the power source 91 is parallel to the axis of the interface 6. The power source 91 can drive the push rod 92 to rotate through the output end.

[0042] Reference Figure 7 , wherein, when the telescopic end of the telescopic source 15 is extended, the rotating frame 9 is in the first state, and at this time, the power source 91 moves to the end of the junction 6 close to the main rail 101. When it is necessary to move the traveling frame 2 on the main rail 101 to the branch rail 102, the rotating frame 9 is first moved to the first state, and then the traveling frame 2 on the main rail 101 is pushed to be sequentially stored in the end of the main rail 101 close to the branch rail 102, so that the rotating wheel 22 of the traveling frame 2 on the main rail 101 closest to the branch rail 102 is coaxial with the junction 6, and then the output end of the power source 91 is rotated along the first direction a to drive the push rod 92 to rotate. During the rotation process, the push rod 92 contacts the extension rod 25 of the traveling frame 2 on the main rail 101 closest to the branch rail 102, and pushes the extension rod 25 to move downward in the direction of passing through the junction 6, and the main frame 21 will be subjected to the pulling force from the traveling frame 2 on the branch rail 102 when passing through the junction 6. Thus, when the traveling frame 2 is at one end of the main rail 101 close to the branch rail 102, the traveling frame 2 can be pulled by the gravity of the traveling frame 2 and the dust suppression curtain 4 on the branch rail 102, and at the same time pushed by the push rod 92, so that the traveling frame 2 passes through the junction 6 and enters the branch rail 102.

[0043] Reference Figure 8When the telescopic end of the telescopic source 15 is retracted, the rotating frame 9 is in the second state, and the power source 91 moves to the end of the branch rail 102 near the junction 6. When the dust suppression cloth is cleaned, and part of the traveling frame 2 on the branch rail 102 needs to be moved to the main rail 101, the rotating frame 9 is first moved to the second state and the output end of the power source 91 is rotated along the second direction b to drive the push rod 92 to rotate, and then the end of the traveling frame 2 is pulled by the pull rope 51 to move toward the center of the main rail 101. During the rotation process, the push rod 92 can contact the bottom of the extension rod 25 of the traveling frame 2 on the branch rail 102 closest to the main rail 101, and push the extension rod 25 to move upward through the junction 6. When the main frame 21 passes through the junction 6, it will be subjected to the pulling force transmitted to the dust suppression curtain 4 by the pull rope 51, so that the traveling frame 2 moves from the branch rail 102 through the junction 6 to the main rail 101. It should be noted that the second direction b is opposite to the first direction a.

[0044] Reference Figure 7 Furthermore, since the opening and closing of the curtain on the top of the foundation pit does not require the moving of the traveling frame 2 on the main rail 101 to the branch rail 102 when the dust suppression curtain 4 is not cleaned, the power source 91 can drive the push rod 92 to rotate to the interception position when the rotating frame 9 is in the first state. When the push rod 92 is in the interception position, the push rod 92 extends vertically in the length direction, and when the traveling frame 2 on the main rail 101 moves to the point where the rotating wheel 22 is coaxial with the junction 6, the push rod 92 abuts against the side of the extension rod 25 on the traveling frame 2 close to the junction 6, so that the push rod 92 prevents the extension rod 25 from moving toward the junction 6, thereby allowing the traveling frame 2 on the main rail 101 to be stored at the end of the main rail 101, so that the dust suppression curtain 4 on the main rail 101 can be quickly stored or unfolded. It should be noted that after the push rod 92 intercepts the extension rod 25, driving the push rod 92 to rotate along the first direction a can enable the push rod 92 to push the extension rod 25 through the junction 6.

[0045] Reference Figure 1 and Figure 8 In addition, when all dust suppression curtains 4 are in the unfolded use state, the rotating wheel 22 of the uppermost traveling frame 2 on the branch rail 102 is coaxial with the junction 6. The power source 91 can drive the push rod 92 to rotate to the supporting position when the rotating frame 9 is in the second state. The power source 91 can drive the push rod 92 to rotate to the supporting position. When the push rod 92 is in the supporting position, the length extension direction of the push rod 92 is parallel to the length direction of the main rail 101, and the push rod 92 abuts against the bottom of the extension rod 25 located in the uppermost traveling frame 2 of the branch rail 102 to support the extension rod 25, thereby reducing the pulling force of the uppermost traveling frame 2 of the branch rail 102 on the dust suppression curtain 4 connected to itself, so as to improve the service life of the dust suppression curtain 4 between the uppermost traveling frame 2 of the branch rail 102 and the traveling frame 2 of the main rail 101 close to one end of the branch rail 102.

[0046] The implementation principle of the dust suppression equipment for foundation pit excavation construction in the embodiment of the present application is as follows: in daily use, the traveling frame 2 on the main rail 101 disperses toward the center of the main rail 101 to unfold the dust suppression curtain 4 to shield the top of the foundation pit, and the traveling frame 2 on the main rail 101 gathers toward the direction close to the junction 6 to fold and store the dust suppression curtain 4 corresponding to the main rail 101, thereby exposing the top of the foundation pit. The dust suppression curtain 4 corresponding to the branch rail 102 is in an unfolded state due to the downward gravity of the traveling frame 2 on the branch rail 102.

[0047] When the dust suppression curtain 4 needs to be cleaned or replaced, the rotating frame 9 is rotated to the first state, and the push rod 92 is rotated to assist in pushing the walking frame 2 through the junction 6 into the branch rail 102, so that the dust suppression curtain 4 on the main rail 101 can be moved to the branch rail 102 and stored downward, so as to gather the dust suppression curtain 4 and lower the height of the dust suppression curtain 4, thereby improving the convenience of cleaning or replacing the dust suppression curtain 4.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dust suppression device for foundation pit excavation construction, characterized in that: include: Two slide rails (1) are provided, respectively disposed on opposite sides of the foundation pit, each of the slide rails (1) comprising a main rail (101) and a branch rail (102), the main rail (101) extending along the length direction of the foundation pit, and the branch rail (102) supported between the bottom of the foundation pit and the main rail (101); A plurality of walking frames (2) are provided, which are movable on the slide rail (1) along the extension direction of the slide rail (1), and are capable of moving back and forth between the main rail (101) and the branch rail (102), and the walking frames (2) on the two slide rails (1) correspond to each other one by one; A connecting member (3) connected between the walking frames (2) corresponding to the two slide rails (1); A dust suppression curtain (4) connected between each two adjacent connecting members (3); The power mechanism (5) is used to drive the traveling frame (2) to move on the slide rail (1), so that the traveling frame (2) can gather toward the branch rail (102) or disperse toward the main rail (101) away from one end of the branch rail (102); when the traveling frame (2) gathers toward the branch rail (102), it drives the dust suppression curtain (4) to be folded and stored; when the traveling frame (2) disperses toward the main rail (101), it drives the dust suppression curtain (4) to be unfolded and used.

2. The dust suppression equipment for foundation pit excavation construction according to claim 1 is characterized in that: The thickness of the main rail (101) and the branch rail (102) are consistent, and the junction of the main rail (101) and the branch rail (102) is a junction (6), and the junction (6) is in the shape of an arc; the walking frame (2) comprises a main frame (21) and a rotating wheel (22), the main frame (21) walks on the slide rail (1), the rotating wheel (22) is rotatably connected to the main frame (21) and abuts against the inner side surface of the slide rail (1), and the extension direction of the rotating axis (215) of the rotating wheel (22) is parallel to the width direction of the slide rail (1); when the walking frame (2) passes through the junction (6), the main frame (21) rotates around the axis of the rotating wheel (22) so as to be able to pass through the junction (6).

3. The dust suppression equipment for foundation pit excavation construction according to claim 2 is characterized in that: The walking frame (2) further comprises a first roller (23) rotatably connected to the main frame (21); the rotation axis (215) of the first roller (23) is parallel to the rotation axis (215) of the rotating wheel (22); and a first sliding groove (7) for the first roller (23) to press into and slide on the outer peripheral side of the slide rail (1) along its length direction; the first roller (23) and the rotating wheel (22) jointly clamp the slide rail (1).

4. The dust suppression equipment for foundation pit excavation construction according to claim 3 is characterized in that: The walking frame (2) also includes a second roller (24) rotatably connected to the main frame (21), the rotation axis (215) of the second roller (24) being perpendicular to the rotation axis (215) of the first roller (23), and a second slide groove (8) for the second roller (24) to abut and slide on the inner circumference of the slide rail (1) along its length direction, and the second roller (24) abuts against the slide rail (1) on one side of the second slide groove (8) close to the dust suppression curtain (4).

5. The dust suppression equipment for foundation pit excavation construction according to claim 3 is characterized in that: The main frame (21) has an extension rod (25) extending in a direction away from the dust suppression curtain (4), and the length extension direction of the extension rod (25) coincides with the axial direction of the first roller (23); The junction (6) is provided with a rotating frame (9) that moves along the length extension direction thereof, and the rotating frame (9) comprises a power source (91) and a push rod (92); the power source (91) moves along the length direction of the junction (6) to a side of the junction (6) that is away from the dust suppression curtain (4), the push rod (92) is connected to the output end of the power source (91), and is driven to rotate by the power source (91), the rotation axis (215) of the power source (91) is parallel to the first roller (23), and the length extension direction of the push rod (92) is perpendicular to the rotation axis (215) of the power source (91); When the power source (91) moves to an end of the interface (6) close to the main rail (101), the rotating frame (9) is in a first state, at which the power source (91) can drive the push rod (92) to rotate to an interception position; the interception position is characterized by the push rod (92) intercepting the path of the extension rod (25) on the main rail (101) passing through the interface (6); When the power source (91) moves to one end of the junction (6) close to the support rail (102), the rotating frame (9) is in a second state, at which time the power source (91) can drive the push rod (92) to rotate to a supporting position, wherein the supporting position is characterized by the push rod (92) supporting the extension rod (25) located at the top end of the support rail (102).

6. The dust suppression equipment for foundation pit excavation construction according to claim 5, characterized in that: When the push rod (92) is in the intercepting position, the power source (91) drives the push rod (92) to rotate, so that the push rod (92) can be rotated to push the extension rod (25) through the junction (6) from the side of the intercepted extension rod (25) away from the junction (6), thereby assisting the walking frame (2) to pass through the junction (6) from the main rail (101).

7. The dust suppression equipment for foundation pit excavation construction according to claim 5, characterized in that: When the push rod (92) is in the supporting position, the power source (91) drives the push rod (92) to rotate, so that the push rod (92) can push the supported extension rod (25) to pass through the junction (6), thereby assisting the walking frame (2) to pass through the junction (6) from the branch rail (102).

8. The dust suppression equipment for foundation pit excavation construction according to claim 5, characterized in that: The center of the push rod (92) is connected to the output end of the power source (91).

9. The dust suppression equipment for foundation pit excavation construction according to claim 2, characterized in that: The power mechanism (5) comprises a pull rope (51) and a winding member (52); the winding member (52) is provided at both ends of the pull rope (51) and is respectively connected to both ends of the pull rope (51); the winding member (52) is used to reel in and unreel the pull rope (51); the pull rope (51) is simultaneously connected to the walking frame (2) located at the end; the dust suppression device further comprises a support frame (10), a fixed pulley (11) is rotatably connected to the support frame (10) for the pull rope (51) to pass through.

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