Spraying maintenance device for tunnel construction

Abstract

The utility model relates to the technical field of tunnel construction, in particular to a spraying maintenance device for tunnel construction, which comprises a moving trolley fixedly provided with a water tank on one side of the top, the water tank is connected and communicated with a spraying mechanism through a conveying pipe provided with a conveying pump, and the spraying mechanism comprises a hollow disc coaxially and rotatably assembled at the water outlet end of the conveying pipe. The hollow disc communicates with the conveying pipe, and the axial side wall of the hollow disc further communicates with a spray head. A supporting frame is arranged on the top face of the moving trolley below the hollow disc, a limiting frame provided with a limiting groove is fixedly arranged on the top face of the supporting frame, and a connecting block in sliding fit with the limiting groove is in transmission connection with the hollow disc. The swing type atomization spraying device can effectively achieve the swing type atomization spraying function, improves the curing effect on a concrete coating, and meanwhile can be used for cooling and dust removal operation in the tunnel construction process in summer.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a spraying maintenance device for tunnel construction. Background Art

[0002] The concrete coating on the inner wall of the tunnel needs to be moistened and maintained after finishing to prevent it from dehydrating and drying quickly and causing cracking later. In the prior art, an electrically driven sprayer is often used in conjunction with a water tank on a mobile trolley for spraying. The walls on both sides of the tunnel can be sprayed successively by the reciprocating movement of the spray trolley. However, due to the fixed angle of the spray head of the spray trolley and the arch structure of the inner wall of the tunnel, it is necessary to manually adjust the spray angle to improve the uniformity of the water spray. The overall operation is labor-intensive and cumbersome. Utility Model Content

[0003] The purpose of the utility model is to provide a spray maintenance device for tunnel construction. The utility model can effectively realize the swinging atomizing spray function, improve the maintenance effect of the concrete coating, and can also be used for cooling and dust removal operations during the tunnel construction process in summer.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A dust removal and water sprinkling maintenance device for tunnel construction, comprising a water tank mobile trolley fixedly mounted on one side of the top, the water tank is connected and communicated with a spray mechanism through a delivery pipe equipped with a delivery pump, the spray mechanism comprises a hollow disk coaxially rotatably mounted on the water outlet end of the delivery pipe, the hollow disk is connected to the delivery pipe and a spray head is also connected on the axial side wall of the hollow disk;

[0006] A support frame is arranged on the top surface of the movable trolley below the hollow disk, a limit frame with a limit groove is fixedly arranged on the top surface of the support frame, and a connecting block slidingly matched with the limit groove is transmission-connected with the hollow disk.

[0007] Preferably, a support rod is fixedly provided on the outer wall of the hollow disk at a position symmetrical to the nozzle axis;

[0008] The end of the connecting block facing the support rod is provided with a U-shaped fork covered on the outside of the support rod, and the other end of the connecting block is fixed with a slider for threading a reciprocating screw, and the reciprocating screw is transmission-connected to the output end of the motor fixed on the support frame. The reciprocating screw and the slider are both mature products on the market, and the corresponding specifications and models can be selected according to actual needs.

[0009] Preferably, the fork rod spacing of the U-shaped fork is larger than the outer diameter of the support rod, and a positioning groove parallel to the reciprocating screw is provided on the support frame, and the bottom of the support rod passes through the positioning groove and is gap-matched with the positioning groove.

[0010] Preferably, the hollow disk is connected and communicated with the nozzle through a telescopic tube, and an adjustment component is also provided on the disk surface of the hollow disk. The distance between the nozzle and the inner wall of the tunnel can be adjusted by extending or contracting the telescopic tube, so that the nozzle can spray areas at different heights in the tunnel.

[0011] Preferably, the adjustment assembly includes a connecting rod vertically connected to the nozzle, a fixing plate is fixedly mounted on the disk surface of the hollow disk, the top of the screw is rotatably connected to a collar provided at the end of the connecting rod, and the bottom of the screw is screwed to a preset screw hole on the fixing plate. By rotating the screw, the screw is axially moved relative to the fixing plate, and the connecting rod is driven by the collar to adjust the nozzle in vertical height.

[0012] Preferably, the delivery pipe is also equipped with a control valve, by which the water flow in the delivery pipe can be freely adjusted, thereby achieving fine adjustment of the spraying water volume.

[0013] When the utility model is working, the delivery pump is turned on to deliver the water in the water tank to the inside of the hollow disk through the delivery pipe and then sprayed out through the nozzle. At the same time, the motor can be turned on, the motor synchronously drives the reciprocating screw to rotate, and the slider makes a linear reciprocating motion along the reciprocating screw, so that the slider can drive the U-shaped fork through the connecting block and then move the support rod. Since the support rod is connected to the hollow disk, and the hollow disk is rotatably connected to the delivery pipe, the movement of the support rod will eventually be converted into the rotation of the hollow disk, so that the nozzle can spray water mist in a pendulum swinging manner.

[0014] By rotating the screw, the screw can be moved axially relative to the fixed plate, and then the connecting rod is driven by the ring to adjust the vertical height of the sprinkler head. At the same time, the extension or contraction of the telescopic tube itself compensates for the position change of the sprinkler head relative to the hollow disk, thereby adjusting the distance between the sprinkler head and the inner wall of the tunnel, and finally realizing the sprinkler head spraying areas at different heights in the tunnel.

[0015] Compared with the prior art, the utility model has the following advantages: the utility model can effectively realize the swinging atomizing spray function, improve the maintenance effect of the concrete coating, and can also be used for cooling and dust removal operations during the tunnel construction process in summer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the spray curing device described in the specific implementation method;

[0017] Figure 2 It is a structural schematic diagram of the spray mechanism described in the specific implementation method;

[0018] Figure 3 It is a schematic diagram of the connection structure between the nozzle and the hollow disk according to the specific implementation method. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] like Figure 1-3 As shown, a dust removal and water sprinkling maintenance device for tunnel construction includes a mobile trolley 1 with a water tank 11 fixedly installed on one side of the top, the water tank 11 is connected and communicated with a spray mechanism 3 through a delivery pipe 21 equipped with a delivery pump 2 and a control valve 22, the spray mechanism 3 includes a hollow disk 31 coaxially rotatably assembled on the water outlet end of the delivery pipe 21, the hollow disk 31 is communicated with the delivery pipe 21, and the axial side wall of the hollow disk 31 is also connected and communicated with a nozzle 32 through a telescopic tube 34, and a support rod 33 is fixedly provided on the outer wall of the hollow disk 31 at a position symmetrical to the nozzle 32.

[0021] The connecting rod 35 is vertically connected to the nozzle 32, and a fixing plate 36 is fixedly installed on the disk surface of the hollow disk 31. The top of the screw rod 37 is rotatably connected to the ring 38 set at the end of the connecting rod 35, and the bottom end of the screw rod 37 is screwed into a preset screw hole on the fixing plate 36.

[0022] A support frame 4 is provided on the top surface of the mobile trolley 1 below the hollow disk 31, and a limit frame 41 with a limit groove 42 is fixedly provided on the top surface of the support frame 4. A connecting block 43 that slides with the limit groove 42 is provided with a U-shaped fork 44 that is covered on the outside of the support rod 33 at one end thereof facing the support rod 33. The fork rod spacing of the U-shaped fork 44 is larger than the outer diameter of the support rod 33. A positioning groove 48 parallel to the reciprocating screw 46 is also provided on the support frame 4, and the bottom of the support rod 33 passes through the positioning groove 48 and is gap-matched with the positioning groove 48.

[0023] A slider 45 for threading a reciprocating screw 46 is fixedly disposed at one end of the connecting block 43 away from the supporting rod 33 . The reciprocating screw 46 is drivingly connected to the output end of a motor 47 fixedly disposed on the supporting frame 4 .

[0024] When the utility model is working, the delivery pump 2 is turned on to deliver the water in the water tank 11 to the inside of the hollow disk 31 through the delivery pipe 21 and then sprayed out through the nozzle 32. At the same time, the motor 47 can be turned on, and the motor 47 synchronously drives the reciprocating screw 46 to rotate, and makes the slider 45 reciprocate along the reciprocating screw 46 in a straight line, so that the slider 45 can drive the U-shaped fork 44 through the connecting block 43 and then move the support rod 33. Since the support rod 33 is connected to the hollow disk 31, and the hollow disk 31 is rotatably connected to the delivery pipe 21, the movement of the support rod 33 will eventually be converted into the rotation of the hollow disk 31, so that the nozzle 32 can spray water mist in a pendulum swinging manner.

[0025] By rotating the screw rod 37, the screw rod 37 is allowed to move axially relative to the fixed plate 36, and then the connecting rod 35 is driven by the ring 38 to adjust the vertical height of the nozzle 32. At the same time, the extension or contraction of the telescopic tube 34 itself compensates for the position change of the nozzle 32 relative to the hollow disk 31, so as to adjust the distance between the nozzle 32 and the inner wall of the tunnel, and finally the nozzle can spray areas at different heights in the tunnel.

Claims

1. A spray maintenance device for tunnel construction, comprising a mobile trolley (1) with a water tank (11) fixedly mounted on one side of the top, the water tank (11) being connected and communicated with a spray mechanism (3) via a delivery pipe (21) equipped with a delivery pump (2), characterized in that: The spray mechanism (3) comprises a hollow disk (31) coaxially rotatably mounted on the water outlet end of the delivery pipe (21); the hollow disk (31) is connected to the delivery pipe (21) and a spray head (32) is also provided on the axial side wall of the hollow disk (31); A support frame (4) is provided on the top surface of the movable trolley (1) below the hollow plate (31), a limit frame (41) having a limit groove (42) is fixedly provided on the top surface of the support frame (4), and a connecting block (43) slidably matched with the limit groove (42) is transmission-connected to the hollow plate (31).

2. The spray curing device for tunnel construction according to claim 1, characterized in that: A support rod (33) is fixedly disposed on the outer wall of the hollow disk (31) at a position symmetrical to the nozzle (32); One end of the connection block (43) facing the support rod (33) is provided with a U-shaped shift fork (44) which is covered on the outside of the support rod (33), and the other end of the connection block (43) is fixedly provided with a slider (45) for threading a reciprocating screw (46), and the reciprocating screw (46) is drivingly connected to the output end of a motor (47) fixedly mounted on the support frame (4).

3. The spray curing device for tunnel construction according to claim 2, characterized in that: The fork rod spacing of the U-shaped shift fork is greater than the outer diameter of the support rod (33); the support frame (4) is also provided with a positioning groove (48) arranged parallel to the reciprocating screw (46); the bottom of the support rod (33) passes through the positioning groove (48) and is clearance-matched with the positioning groove (48).

4. The spray curing device for tunnel construction according to claim 1, characterized in that: The hollow disk (31) is connected and communicated with the nozzle (32) via a telescopic tube (34), and an adjustment component is also provided on the disk surface of the hollow disk (31).

5. The spray curing device for tunnel construction according to claim 4, characterized in that: The adjustment assembly comprises a connecting rod (35) vertically connected to the nozzle (32); a fixing plate (36) is fixedly mounted on the disk surface of the hollow disk (31); the top of the screw rod (37) is rotatably connected to a ring (38) provided at the end of the connecting rod (35); and the bottom of the screw rod (37) is screwed into a preset screw hole on the fixing plate (36).

6. The spray curing device for tunnel construction according to claim 1, characterized in that: The delivery pipe (21) is also equipped with a control valve (22).

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