A tunnel surface smoothness construction auxiliary equipment

Abstract

The present invention discloses a tunnel surface smoothness construction auxiliary equipment, including a trowel, a rotating telescopic arm is arranged on the upper side of the trowel, the upper end of the rotating telescopic arm is fixedly connected to an arc-shaped shell, the outer arc surface of the arc-shaped shell is provided with a strip notch, the bottom of the arc-shaped shell is fixedly connected to a pump-in connection pipe, the pump-in connection pipe is connected to a mortar delivery pump through a hose, a drilling device and a push-out cylinder are arranged on the upper end of the rotating telescopic arm, a plurality of pads are stored in the push-out cylinder, and a limit pop-up device is arranged on the upper side of the pad. The present invention pushes the cylinder out of the drill hole through elasticity and inertia, so as to facilitate the formation of spaced circular pits on the surface of the smoothed mortar layer, which facilitates the subsequent laying of waterproof boards, and the arc-shaped block will form notches in the circumferential direction of the tunnel, and a small amount of water directly seeping out of the tunnel wall and the waterproof board will flow to the bottom of the tunnel side wall along the guidance of the notches, so as to facilitate drainage.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel waterproofing construction, and in particular to a tunnel surface smoothness construction auxiliary equipment. Background Art

[0002] The surface of the initial tunnel formed by the concrete sprayed by the shotcrete machine is still very rough, and there are local uneven areas on the concrete surface, which poses a great quality risk to the construction quality of the waterproof board laying, and also brings quality problems such as voids behind the tunnel waterproof board.

[0003] The laying of waterproof boards requires the fixing of welding plates at intervals on the tunnel wall. The welding plates are higher than the surface of the tunnel wall, which easily causes a gap to form between the waterproof board and the tunnel wall. Tunnel seepage water easily forms bulges between the waterproof board and the tunnel wall, thus affecting the quality of the waterproof construction. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, and to propose a tunnel surface flatness construction auxiliary equipment, thereby solving the problems existing in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A tunnel surface smoothness construction auxiliary equipment comprises a trowel vehicle, a rotating telescopic arm is arranged on the upper side of the trowel vehicle, the upper end of the rotating telescopic arm is fixedly connected to an arc-shaped shell, the outer arc surface of the arc-shaped shell is provided with a strip-shaped notch, the bottom of the arc-shaped shell is fixedly connected to a pump-in connecting pipe, the pump-in connecting pipe is connected to a mortar delivery pump through a hose, a drilling device and an ejection cylinder are arranged on the upper end of the rotating telescopic arm, a plurality of pads are stored in the ejection cylinder, and a limit pop-up device is arranged on the upper side of the pads.

[0007] Preferably, the drilling device comprises a hydraulic telescopic guide rod, the upper end of the hydraulic telescopic guide rod is fixedly connected to a cross plate, and the cross plate is fixedly connected to a plurality of drilling rigs at intervals.

[0008] Preferably, the rotating telescopic arm is fixedly connected to the arc rod, the middle part of the arc rod is fixedly connected to the ejection cylinder, the end of the arc rod is rotatably connected to the recovery box, the upper end of the recovery box is an open structure, and the middle part of the bottom of the recovery box is fixedly connected to the counterweight block.

[0009] Preferably, the bottom of the ejection cylinder is fixedly connected to an electric ejection rod, and the inner wall of the upper end of the ejection cylinder is fixedly connected to an electromagnet.

[0010] Preferably, the limit pop-up device comprises a cylinder, which is fixedly connected to one side of the pad, a sliding cavity is arranged at the upper end of the cylinder and is slidably connected to the push rod, a push rod is slidably connected to the lower end of the cylinder, a compression spring is fixedly connected between the push rod and the push rod, the upper end of the push rod is conical, a through groove is arranged on the inner wall of the cylinder, an extrusion block is slidably connected in the through groove, a first spring is fixedly connected between the extrusion block and the inner wall of the cylinder, a clamping groove is arranged on the inner side of the extrusion block, a boss is arranged at one end of the push rod extending into the sliding cavity, the boss is arranged correspondingly to the clamping groove, and a chamfer is arranged on one side of the extrusion block close to the boss;

[0011] The arc-shaped shell is fixedly connected to the arc-shaped block, and the arc-shaped block is arranged corresponding to the push rod.

[0012] Preferably, one side of the arc-shaped shell is fixedly connected to a cover plate, and the cover plate is provided with a plurality of circular holes at intervals, and the circular holes are provided in a one-to-one correspondence with the pads.

[0013] Preferably, a avoidance hole is provided at the upper end of the push rod, and the push rod is provided corresponding to the avoidance hole.

[0014] Preferably, the outer side of the extrusion block is fixedly connected to a foam pad.

[0015] The advantages of the present invention are as follows: the pad and the cylinder of the tunnel surface flatness construction auxiliary equipment provided by the present invention are pushed into the borehole through positioning, the push rod is compressed and approaches the extrusion block, the compression spring accumulates force, the boss enters the card slot to squeeze the extrusion block outward, so that it is clamped with the inner wall of the borehole; as the rotating telescopic arm rotates to the next drilling position, the arc shell lays the mortar layer, the mortar covers the pad, the arc block of the arc shell slides over the pad and acts on the push rod, the push rod pushes upward to make the two extrusion blocks move further outward, the distance between the two extrusion blocks increases and loses the limit on the boss, the compression spring is expanded and acts on the bottom of the borehole through the push rod, and the cylinder is pushed out of the borehole through elasticity and inertia, so as to facilitate the formation of spaced circular pits on the surface of the smoothed mortar layer, which is convenient for the subsequent laying of waterproof boards, and the arc block will form notches in the circumferential direction of the tunnel, and a small amount of water directly seeping out of the tunnel wall and the waterproof board will flow along the bottom of the tunnel side wall along the guide channel of the notch, so as to facilitate drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a basic structural schematic diagram of the present invention;

[0017] Figure 2 yes Figure 1 A local enlarged view of point E in FIG.

[0018] Figure 3 It is a schematic diagram of the working state of the arc-shaped shell and the pad;

[0019] Figure 4 yes Figure 3 A local enlarged view of point F in FIG.

[0020] Figure 5 yes Figure 4 A local enlarged view of point H in FIG.

[0021] Figure 6 It is a schematic diagram of the internal structure of the ejection tube of the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] like Figure 1-6 As shown, the present invention provides an auxiliary equipment for tunnel surface flatness construction, including a trowel 1, a rotating telescopic arm 11 is arranged on the upper side of the trowel 1, the rotating telescopic arm 11 is hydraulically powered, the upper end of the rotating telescopic arm 11 is fixedly connected to an arc-shaped shell 12, the outer arc surface of the arc-shaped shell 12 is provided with a strip notch 13, the bottom of the arc-shaped shell 12 is fixedly connected to a pump-in connecting pipe, the pump-in connecting pipe is connected to a mortar delivery pump through a hose, the mortar is pumped into the arc-shaped shell 12 and overflows through the strip notch 13, the arc-shaped shell 12 moves with the rotating telescopic arm 11, and a mortar layer is evenly applied on the tunnel wall, providing conditions for the subsequent construction of a waterproof board, a drilling device 2 and a push-out cylinder 3 are arranged on the upper end of the rotating telescopic arm 11, a plurality of pads 4 are stored in the push-out cylinder 3, and a limit pop-up device 5 is arranged on the upper side of the pad 4.

[0024] In on-site construction, appearance covers the surface. In on-site construction, the surface usually represents one face, while appearance can reflect multiple faces.

[0025] As an embodiment of the present invention, the drilling device 2 includes a hydraulic telescopic guide rod 21, the upper end of the hydraulic telescopic guide rod 21 is fixedly connected to a horizontal plate 22, and the horizontal plate 22 is fixedly connected to multiple drilling rigs 23 at intervals. The drilling rigs 23 drill holes in the tunnel wall at intervals as the telescopic arm 11 rotates.

[0026] As an embodiment of the present invention, the limit pop-up device 5 includes a cylinder 51, which is fixedly connected to one side of the pad 4. A sliding cavity is arranged at the upper end of the cylinder 51 and is slidably connected to the push rod 52. The lower end of the cylinder 51 is slidably connected to the push rod 53. A compression spring 54 is fixedly connected between the push rod 53 and the push rod 52. The upper end of the push rod 53 is conical. A through groove is arranged on the inner wall of the cylinder 51. An extrusion block 55 is slidably connected in the through groove. An avoidance hole 521 is arranged at the upper end of the push rod 52. The push rod 53 is arranged corresponding to the avoidance hole 521. A foam pad 551 is fixedly connected to the outer side of the extrusion block 55 to increase the friction with the borehole wall and can be compressed. A first spring 56 is fixedly connected between the extrusion block 55 and the inner wall of the cylinder 51. A slot 57 is arranged on the inner side of the extrusion block 55. A boss 58 is arranged at one end of the push rod 52 extending into the sliding cavity. The boss 58 is arranged corresponding to the slot 57. A chamfer is arranged on one side of the extrusion block 55 close to the boss 58.

[0027] The arc-shaped housing 12 is fixedly connected to the arc-shaped block 59, and the arc-shaped block 59 is arranged corresponding to the top rod 53.

[0028] The pad 4 and the cylinder 51 of the present invention are positioned and pushed into the borehole, the push rod 52 is compressed and moves closer to the extrusion block 55, the compression spring 54 accumulates force, the boss 58 enters the slot 57 to squeeze the extrusion block 55 outward, so that it is clamped with the inner wall of the borehole; as the rotating telescopic arm 11 rotates to the next drilling position, the arc shell 12 lays the mortar layer, the mortar covers the pad 4, the arc block 59 of the arc shell 12 slides over the pad 4 and acts on the push rod 53, and the push rod 53 pushes the two extrusion blocks upward so that As the two extrusion blocks 55 move further outward, the distance between the two extrusion blocks 55 increases and the boss 58 is lost, the compression spring 54 is expanded and acts on the bottom of the borehole through the push rod 52, and the cylinder 51 is pushed out of the borehole by elasticity and inertia, thereby forming spaced circular pits on the surface of the smoothed mortar layer, which facilitates the subsequent laying of the waterproof board, and the arc block 59 forms notches in the circumferential direction of the tunnel, and a small amount of water directly seeping out of the tunnel wall and the waterproof board flows to the bottom of the tunnel side wall along the guidance of the notches, thereby facilitating drainage.

[0029] As an embodiment of the present invention, the bottom of the ejection cylinder 3 is fixedly connected to the electric ejection rod 31, the inner wall of the upper end of the ejection cylinder 3 is fixedly connected to the electromagnet 32, the pad 4 is made of magnetic material and has a non-stick coating on the surface, and one side of the arc-shaped shell 12 is fixedly connected to the cover plate 41, and the cover plate 41 is provided with a plurality of circular holes 42 at intervals, and the circular holes 42 are provided one by one with the pad 4;

[0030] In this embodiment, if Figure 6As shown, the pads 4 are stacked one by one in the ejection tube 3, and the electromagnet 32 ​​intermittently adsorbs to allow the corresponding pads 4 to pass through. The electric ejection rod 31 is extended and retracted to allow the limit pop-up device 5 of the pad 4 to be inserted into the drill hole to form a temporary fixation. The cover plate 41 is smoothed and shielded. When the circular hole 42 is aligned with the pad 4, the limit pop-up device 5 is released to allow the pad 4 to fall, forming a circular pit on the smoothed mortar layer, which is convenient for the subsequent fixed installation of the welding plastic disc. The welding plastic disc is a prior art. The welding plastic discs are fixed at intervals on the tunnel wall, and the waterproof board is welded to the welding plastic disc after laying, so as to facilitate the recycling of the pad 4, and the falling of the pad 4 will not peel off the mortar in other positions.

[0031] As an embodiment of the present invention, the rotating telescopic arm 11 is fixedly connected to the arc rod 6, the middle part of the arc rod 6 is fixedly connected to the ejection cylinder 3, the end of the arc rod 6 is rotatably connected to the recovery box 61, the upper end of the recovery box 61 is an open structure, and the middle part of the bottom of the recovery box 61 is fixedly connected to the counterweight block.

[0032] In this embodiment, as the rotatable telescopic arm 11 rotates, the recovery box 61 is opened upward by the bottom counterweight block to recover the fallen mortar and the pad 4.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tunnel surface smoothness construction auxiliary equipment, comprising a smoothing vehicle (1), characterized in that: A rotating telescopic arm (11) is arranged on the upper side of the trowel vehicle (1), the upper end of the rotating telescopic arm (11) is fixedly connected to an arc-shaped shell (12), the outer arc surface of the arc-shaped shell (12) is provided with a strip-shaped notch (13), the bottom of the arc-shaped shell (12) is fixedly connected to a pump-in connection pipe, the pump-in connection pipe is connected to a mortar delivery pump through a hose, the upper end of the rotating telescopic arm (11) is provided with a drilling device (2) and an ejection cylinder (3), a plurality of pads (4) are stored in the ejection cylinder (3), and a limit ejection device (5) is arranged on the upper side of the pads (4).

2. The tunnel surface smoothness construction auxiliary equipment according to claim 1, characterized in that: The drilling device (2) comprises a hydraulic telescopic guide rod (21), the upper end of the hydraulic telescopic guide rod (21) is fixedly connected to a transverse plate (22), and the transverse plate (22) is fixedly connected to a plurality of drilling rigs (23) at intervals.

3. The tunnel surface smoothness construction auxiliary equipment according to claim 1, characterized in that: The rotating telescopic arm (11) is fixedly connected to the arc-shaped rod (6), the middle part of the arc-shaped rod (6) is fixedly connected to the ejection cylinder (3), the end of the arc-shaped rod (6) is rotatably connected to the recovery box (61), the upper end of the recovery box (61) is an open structure, and the middle part of the bottom of the recovery box (61) is fixedly connected to a counterweight block.

4. The tunnel surface smoothness construction auxiliary equipment according to claim 3 is characterized by: The bottom of the ejection tube (3) is fixedly connected to an electric ejection rod (31), and the inner wall of the upper end of the ejection tube (3) is fixedly connected to an electromagnet (32).

5. The tunnel surface smoothness construction auxiliary equipment according to claim 1, characterized in that: The position limiting pop-up device (5) comprises a cylinder (51), the cylinder (51) is fixedly connected to one side of the pad (4), a sliding cavity is arranged at the upper end of the cylinder (51) and is slidably connected to a push rod (52), a push rod (53) is slidably connected to the lower end of the cylinder (51), a compression spring (54) is fixedly connected between the push rod (53) and the push rod (52), the upper end of the push rod (53) is conical, a through groove is arranged on the inner wall of the cylinder (51), an extrusion block (55) is slidably connected in the through groove, a first spring (56) is fixedly connected between the extrusion block (55) and the inner wall of the cylinder (51), a clamping groove (57) is arranged on the inner side of the extrusion block (55), a boss (58) is arranged at one end of the push rod (52) extending into the sliding cavity, the boss (58) and the clamping groove (57) are arranged correspondingly, and a chamfer is arranged on one side of the extrusion block (55) close to the boss (58); The arc-shaped housing (12) is fixedly connected to the arc-shaped block (59), and the arc-shaped block (59) is arranged corresponding to the push rod (53).

6. The tunnel surface smoothness construction auxiliary equipment according to claim 5, characterized in that: One side of the arc-shaped shell (12) is fixedly connected to a cover plate (41), and the cover plate (41) is provided with a plurality of circular holes (42) at intervals, and the circular holes (42) are arranged in a one-to-one correspondence with the pads (4).

7. The tunnel surface smoothness construction auxiliary equipment according to claim 5, characterized in that: The upper end of the push rod (52) is provided with an avoidance hole (521), and the push rod (53) is provided corresponding to the avoidance hole (521).

8. The tunnel surface smoothness construction auxiliary equipment according to claim 5, characterized in that: The outer side of the extrusion block (55) is fixedly connected to a foam pad (551).

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