A spray device and a maintenance trolley containing the spray device

Abstract

The present invention provides a spray device, including a spray pipe assembly and a spray head, wherein the spray pipe assembly includes a plurality of arc-shaped spray pipes, and two adjacent arc-shaped spray pipes are adjustably connected through an adjustment mechanism to form an arc-shaped arch structure that matches the curvature of the tunnel; the spray head is provided with a plurality of pieces distributed on the arc-shaped arch structure, and the plurality of spray heads are distributed in a manner of increasing from the top of the arc-shaped arch structure to both sides. The present invention arranges the spray pipe assembly to be formed by connecting a plurality of arc-shaped spray pipes to each other, and arranges the spray pipe assembly in a manner of decreasing from the top to both sides, and arranges the spray heads in a manner of increasing from the top of the spray pipe assembly to both sides, so that the tunnel can be fully sprayed to achieve a comprehensive and effective maintenance effect, and the generation of a water curtain can be prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel maintenance, and in particular to a spraying device and a maintenance trolley containing the spraying device. Background Art

[0002] At present, most of the existing spray devices are presented in the form of first making an arch frame with a curvature similar to the tunnel surface and then arranging water pipes on the arch frame for spraying maintenance. The curvature of the arch frame cannot be adjusted and cannot be applied to tunnels of different radii; the nozzles used in the spray device are mostly upright nozzles, which are prone to point spraying when spraying water, and spraying a point for a long time may slightly damage the tunnel wall; the spray device is to tie the PU water pipe to the arch frame, which cannot be fixed well and is easy to wear, and the PU water pipe itself is a consumable and has a high probability of damage. For example: the spray device in patent CN201721376296.2 has defects such as complex structure, low flexibility, and non-adjustability; although the spray device in patent CN201820188731.7 has been optimized in structure, it uses a spray pipe of the same thickness, and it also has defects such as non-adjustability and easy deformation of the support point during operation. When spraying water for maintenance at the top, the adhesion of water is less than gravity and it is in a vertical state, so the water will fall directly from the top to the ground; the tunnel surface extends from the top to both ends in an arc shape, and the water will flow down along the wall. In order to improve the utilization rate of water resources, the arrangement of the sprinklers is also very particular.

[0003] Therefore, issues such as adjustable arch angle, arch structure optimization, and nozzle arrangement have become research directions. Summary of the invention

[0004] A spray device provided by the present invention comprises a spray pipe assembly and a spray head, wherein the spray pipe assembly comprises a plurality of arc-shaped spray pipes, and two adjacent arc-shaped spray pipes are adjustably connected via an adjusting mechanism to form an arc-shaped arch structure matching the curvature of a tunnel; the spray head is provided with a plurality of pieces distributed on the arc-shaped arch structure, and the plurality of spray heads are distributed in an increasing manner from the top of the arc-shaped arch structure to both sides.

[0005] Preferably, the size of the arc-shaped spray pipe is set in a manner of decreasing from the top of the arc-shaped arch structure to both sides.

[0006] Preferably, the nozzles are fixedly connected to the arc-shaped spray pipe by welding, and are communicated with the cavity of the arc-shaped spray pipe; the nozzles are arranged inclined with respect to the longitudinal direction of the tunnel.

[0007] Preferably, the arc-shaped spray pipe comprises a hollow pipe section and sealing plates arranged at both ends of the pipe section, and the sealing plates of two adjacent arc-shaped spray pipes are hinged to each other through a hinge mechanism; and the two adjacent arc-shaped spray pipes are connected through a water pipe combination.

[0008] Preferably, the adjustment mechanism comprises a support seat, a connecting plate and a connecting piece; the support seat and the connecting plate are respectively arranged on two adjacent arc-shaped spray pipe sections; one end of the connecting piece is hinged to the support seat, and the other end is detachably arranged on the connecting plate.

[0009] Preferably, the other end of the connecting member can be locked on the connecting plate by a locking member.

[0010] Preferably, the connecting member is configured as a connecting rod with at least a portion of threads on its surface, and the locking member is a locking nut matching the connecting rod.

[0011] Preferably, the connecting plate is provided with a clamping portion P1, and the connecting piece is provided with a plurality of clamping portions P2 matching the clamping portion P1, and the fixed connection and disassembly of the connecting plate and the connecting piece can be achieved through the combination of the clamping portions P1 and the clamping portions P2.

[0012] Preferably, the adjustment mechanism includes a support seat, a connecting plate and a connecting piece; the support seat and the connecting plate are respectively arranged on two adjacent sections of the arc-shaped spray pipe; one end of the connecting piece is hinged to the connecting plate, and the other end is connected to the support seat through a locking piece; the locking piece can be rotatably installed on the support seat, and the relative position of the two adjacent sections of the arc-shaped spray pipe can be adjusted by rotating the locking piece to shorten or extend the length of the connecting piece.

[0013] The present invention also discloses a maintenance trolley, which includes a traveling trolley, a supporting arm, a water supply mechanism and the above-mentioned spraying device; the bottom of the traveling trolley is provided with traveling wheels for walking in the tunnel; one end of the supporting arm is connected to the traveling trolley, and the other end is connected to the spraying device for supporting the spraying device; the water supply mechanism includes a water tank assembly and a water pump, the water tank assembly is provided with spray water, and the spray water is pumped into the spray pipe assembly in the spray device by the water pump.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The spray device disclosed in the present invention configures a spray pipe assembly to be composed of multiple arc-shaped spray pipes that are adjustably connected through an adjustment mechanism so that the overall curvature of the spray pipe assembly can be consistent with the curvature of the tunnel, thereby achieving an effect of effective maintenance of the tunnel in all aspects; and by distributing the nozzles in an increasing manner from the top of the arc-shaped arch frame to both sides, the problem of wasting spray water due to excessive water flow at the top of the arc-shaped arch frame can be reduced by reducing the number of nozzles at the top of the arc-shaped arch frame.

[0016] (2) The spray device in the present invention is arranged in a manner that the arc-shaped spray pipe is gradually reduced from the top of the arc-shaped arch frame to the two sides, so as to ensure the overall rigidity of the arc-shaped arch frame by increasing the size of the arc-shaped spray pipe at the top of the arc-shaped arch frame, and reduce the inertial swing by reducing the mass at both ends of the arc-shaped arch frame.

[0017] (3) The spray device in the present invention is connected to the arc-shaped spray pipe by fixing the spray head to the cavity of the arc-shaped spray pipe, so that the spray device can directly pump the curing water into the arc-shaped spray pipe, thereby reducing the safety hazards such as the pipe falling off due to the instability of the pipe binding or friction caused by the pipe being exposed to the outside.

[0018] (4) The spraying device in the present invention is arranged in an inclined manner with respect to the longitudinal direction of the tunnel, so as to better disperse the curing water and spray it evenly onto the tunnel lining surface, reduce rebound, and prevent the tunnel lining surface from being damaged due to excessive concentration of curing water, thereby increasing the curing water spraying range.

[0019] (5) The spray device of the present invention hinges two adjacent arc-shaped spray pipes to each other using a hinge mechanism to increase the supporting points of the two adjacent arc-shaped spray pipes during adjustment, thereby preventing the arc-shaped spray pipes from falling off.

[0020] (6) The maintenance trolley disclosed in the present invention is small in size and has a simple structure. During maintenance, there is no need to transfer the lining trolley, thereby improving construction efficiency.

[0021] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 is a schematic front view of a spray device in an embodiment of the present invention;

[0024] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle nozzle (in the figure, ← represents the longitudinal direction of the tunnel, and α represents the angle between the nozzle spraying part and the longitudinal direction of the tunnel);

[0025] Figure 3 yes Figure 1 A partial enlarged schematic diagram of the first type of adjustment mechanism;

[0026] Figure 4 yes Figure 1 A partial enlarged schematic diagram of the second regulating mechanism;

[0027] Figure 5 yes Figure 1 A partial enlarged schematic diagram of the third regulating mechanism;

[0028] Figure 6 yes Figure 1 A partial enlarged schematic diagram of the fourth regulating mechanism;

[0029] Figure 7 It is a schematic front view of the maintenance trolley in an embodiment of the present invention.

[0030] in:

[0031] 1. Nozzle, 2. Arc-shaped spray pipe, 3. Adjustment mechanism, 3.1. Support seat, 3.2. Connecting plate, 3.3. Connecting piece, 3.4. Locking piece, 4. Sealing plate, 5. Water pipe joint, 6. Articulated mechanism, 6.1. Rotating shaft, 6.2. First connecting plate, 6.3. Second connecting plate, 01. Traveling trolley, 02. Support arm, 03. Spraying device. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present invention more clear and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. It should be noted that the drawings of the present invention are all simplified and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the implementation of the present invention; the "number" mentioned in the present invention is not limited to the specific number in the examples in the accompanying drawings; the directions or positional relationships indicated by "front", "middle", "back", "left", "right", "up", "down", "top", "bottom", "middle", etc. mentioned in the present invention are based on the directions or positional relationships shown in the drawings of the present invention, and do not indicate or imply that the devices or components referred to must have a specific direction, nor can they be understood as limitations on the present invention.

[0033] The present embodiment:

[0034] See also Figure 1 As shown, a spray device includes a spray pipe assembly and a spray head 1; the spray pipe assembly includes a plurality of arc-shaped spray pipes 2, and two adjacent arc-shaped spray pipes 2 are hinged to each other and adjustably connected through an adjustment mechanism 3 to form an arc-shaped arch structure that matches the curvature of the tunnel; the spray head 1 is provided with a plurality of pieces distributed on the arc-shaped arch structure, and the plurality of spray heads 1 are distributed in an increasing manner from the top of the arc-shaped arch structure to both sides.

[0035] Preferably, in order to ensure the strength and connection rigidity of the arc-shaped spray pipe, the size of the arc-shaped spray pipe 2 is set in a manner of decreasing from the top of the arc-shaped arch structure to both sides.

[0036] Preferably, in order to reduce the use of water pipes, the arc-shaped spray pipe 2 can be set as a hollow circular tube, a hollow square tube or other structures; the multiple nozzles 1 are fixedly connected to the arc-shaped spray pipe 2 by welding, and the multiple nozzles are connected to the cavity of the arc-shaped spray pipe 2. By using the hollow part of the arc-shaped spray pipe 2 as a delivery pipe for spray water, the use of water pipes is reduced.

[0037] Preferably, see Figure 2 As shown, the angle between the nozzle 1 and the longitudinal direction of the tunnel is set to 30°-60°, which can improve the utilization rate of the curing water, reduce the rebound of the curing water after spraying it onto the second lining surface, and increase the spraying range of the nozzle.

[0038] Preferably, the nozzle adopts an atomizing nozzle, which can make the spraying effect more uniform, and will not cause the curing water to fall from the top to form a water curtain due to its own gravity, nor will it cause damage to the tunnel lining surface due to concentrated water droplets.

[0039] Preferably, the angle between the water outlet of the nozzle 1 and the circumferential direction of the tunnel is set to 15°-25° to reduce the overlap rate of the curing water.

[0040] Preferably, in order to achieve sealing of the arc-shaped spray pipe and prevent the spray water from flowing out, sealing plates 4 are provided at both ends of the arc-shaped spray pipe 2 , and the sealing plates 4 are fixedly connected to both ends of the arc-shaped spray pipe 2 .

[0041] Preferably, in order to allow the spray water to flow between two adjacent arc-shaped spray pipes, each of the arc-shaped spray pipes 2 is also provided with a water pipe joint 5, and the two adjacent water pipe joints 5 are connected by a water pipe. Preferably, the water pipe joint 5 is arranged at a position where the two adjacent arc-shaped spray pipes 2 are close to each other, so as to reduce the length of the water pipe used to connect the two adjacent water pipe joints 5.

[0042] Preferably, in order to realize the connection between two adjacent arc-shaped spray pipes, a hinge mechanism 6 is further provided between the two adjacent arc-shaped spray pipes, and the hinge mechanism 6 includes a rotating shaft 6.1, a first connecting plate 6.2, and a second connecting plate 6.3, one end of the first connecting plate 6.2 and the second connecting plate 6.3 are respectively connected to the sealing plates 4 of the two adjacent spray pipes, and the other ends of the first connecting plate 6.2 and the second connecting plate 6.3 are sleeved on the rotating shaft 6.1, and the first connecting plate 6.2, the second connecting plate 6.3 and the rotating shaft 6.1 are mutually connected to form a hinge structure, so as to realize the mutual hinge connection between the two adjacent arc-shaped spray pipes 2. Preferably, the hinge mechanism can also be set as a combination of a pin shaft and a sleeve.

[0043] See also Figure 3As shown, the adjustment mechanism 3 includes a support seat 3.1, a connecting plate 3.2, a connecting piece 3.3 and a locking piece 3.4; the support seat 3.1 and the connecting plate 3.2 are respectively arranged on two adjacent arc-shaped spray pipes 2, and the support seat 3.1 is provided with a through groove along the central axis; one end of the connecting piece 3.3 is installed in the through groove and hinged with the support seat 3.1, and the other end is movably connected with the connecting plate 3.2 through the locking piece 3.4, and the relative position between the two adjacent arc-shaped spray pipes 2 is adjusted by adjusting the relative position of the locking piece 3.4 on the connecting piece 3.3.

[0044] In addition to the above structures, see Figure 4 and Figure 5 As shown, the adjustment mechanism 3 can also be configured as: the connecting member 3.3 can also be configured as a connecting rod with at least a partial groove on the surface, and the central axis of the groove is perpendicular to the central axis of the connecting rod; the locking member 3.4 is configured as a locking rod, and a slot for installing the locking rod is provided on the connecting plate 3.2, and the locking rod passes through the slot and extends into the slot. The relative distance between two adjacent arc-shaped spray pipes 2 is adjusted by matching the locking rod with the grooves placed at different positions on the connecting rod, thereby realizing the adjustment of the overall curvature of the arc arch, so that the curvature of the arc arch frame matches the curvature of the tunnel, thereby ensuring all-round spraying maintenance of the tunnel surface. Preferably, in order to relatively lock and fix the locking piece 3.4 and the connecting piece 3.3, a limiting sleeve is also provided on the locking piece 3.4, and the limiting sleeve is provided with a locking screw hole whose central axis is perpendicular to the central axis of the locking piece 3.4, and the locking piece 3.4 and the connecting piece 3.3 are relatively locked and fixed by a locking screw installed in the locking screw hole.

[0045] In addition to the above structures, see Figure 6 As shown, the adjustment mechanism 3 can also be configured as: including a support seat 3.1, a connecting plate 3.2, a connecting piece 3.3 and a locking piece 3.4; the support seat 3.1 and the connecting plate 3.2 are respectively arranged on two adjacent spray pipes, and the support seat 3.1 is provided with a through groove arranged along the central axis and a through hole whose central axis is perpendicular to the central axis of the through groove; the connecting piece 3.3 is configured as a rope chain; the locking piece 3.4 includes a locking nut and a limit pin, one end of the rope chain is fixedly connected to the connecting plate 3.2, and the other end is fixedly connected to the limit pin; The limit pin is arranged as a T-shaped structure and is arranged through the through hole, and a locking nut is arranged on one end of the limit pin extending to the outside of the support seat 3.1, and the limit pin is fixed to the support seat 3.1 by the locking nut to prevent the limit pin from rotating by itself; the relative distance between two adjacent arc-shaped spray pipes 2 is adjusted by rotating the limit pin to shorten or lengthen the distance of the rope chain, thereby realizing the adjustment of the overall curvature of the arc arch, so that the curvature of the arc arch frame matches the curvature of the tunnel, thereby ensuring all-round spraying maintenance of the tunnel surface.

[0046] See also Figure 7 As shown, the present invention also discloses a maintenance trolley, which includes a traveling trolley 01, a supporting arm 02, a water supply mechanism and the above-mentioned spraying device 03;

[0047] The bottom of the traveling trolley 01 is provided with traveling wheels for traveling in the tunnel;

[0048] One end of the support arm 02 is connected to the traveling trolley 01, and the other end is connected to the spray device 03, so as to support the spray device 03;

[0049] The water supply mechanism includes a water tank assembly and a water pump. The water tank assembly is provided with spray water, and the spray water is pumped into the spray pipe assembly in the spray device 03 by the water pump.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spray device, characterized in that: Including sprinkler pipe assembly and sprinkler head, The spray pipe assembly includes a plurality of arc-shaped spray pipes, and two adjacent arc-shaped spray pipes are adjustably connected by an adjustment mechanism to form an arc-shaped arch structure that matches the curvature of the tunnel; the adjustment mechanism includes a support seat, a connecting plate, a connecting piece and a locking piece, the support seat and the connecting plate are respectively arranged on two adjacent arc-shaped spray pipes, the connecting piece is arranged as a connecting rod with at least a partial groove on the surface, the locking piece is arranged as a locking rod, the connecting plate is provided with a slot hole for installing the locking rod, the locking rod passes through the slot hole and extends into the slot; and a limiting sleeve is also sleeved on the locking piece, and the limiting sleeve is provided with a locking screw hole whose central axis is perpendicular to the central axis of the locking piece, and the locking piece and the connecting piece are relatively locked and fixed by a locking screw installed in the locking screw hole; The nozzles are provided with a plurality of nozzles distributed on the arc-shaped arch structure, and the plurality of nozzles are distributed in a manner of increasing in number from the top of the arc-shaped arch structure to both sides; The size of the arc-shaped spray pipe is set in a manner of decreasing from the top of the arc-shaped arch structure to both sides.

2. The spray device according to claim 1, characterized in that: The nozzle is fixedly connected to the arc-shaped spray pipe, and the nozzle is communicated with the cavity of the arc-shaped spray pipe; the nozzle is inclined with respect to the longitudinal direction of the tunnel.

3. The spray device according to claim 1, characterized in that: The arc-shaped spray pipe comprises a hollow pipe section and sealing plates arranged at both ends of the pipe section. The sealing plates of two adjacent arc-shaped spray pipes are hinged to each other through a hinge mechanism; and the two adjacent arc-shaped spray pipes are connected through a water pipe assembly.

4. The spray device according to claim 1, characterized in that: The connecting plate is provided with a clamping portion P1, and the connecting piece is provided with a plurality of clamping portions P2 matching the clamping portion P1. The fixing connection and disassembly of the connecting plate and the connecting piece can be achieved through the combination of the clamping portions P1 and the clamping portions P2.

5. A maintenance trolley, characterized in that: It comprises a traveling trolley, a supporting arm, a water supply mechanism and a spray device as claimed in any one of claims 1 to 4; The bottom of the traveling trolley is provided with traveling wheels for traveling in the tunnel; One end of the support arm is connected to the traveling trolley, and the other end is connected to the spray device, so as to support the spray device; The water supply mechanism comprises a water tank assembly and a water pump. Spray water is arranged in the water tank assembly, and the spray water is pumped into the spray pipe assembly in the spray device by the water pump.

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