Tunnel primary lining concrete slicking device

Abstract

The utility model discloses a tunnel primary lining concrete slicking device, and particularly relates to the technical field of concrete slicking, which comprises two rails mounted on a tunnel steel arch, a sliding plate and a driving component for driving the sliding plate to move are arranged between the two rails, one end, close to the rails, of the sliding plate is slidably connected with the rails, and the other end, close to the rails, of the sliding plate is slidably connected with the driving component. The bottom of the sliding plate is fixedly provided with a scraping plate used for scraping tunnel primary lining concrete, the driving assembly comprises lantern rings fixedly welded between the two rails, a detachable winch is fixedly arranged between the two lantern rings, and the winch is fixed to the sliding plate and the scraping plate through inhaul cables. According to the utility model, the winch is matched with the inhaul cable to realize the automatic scraping operation of the scraping plate on the primary lining concrete of the tunnel, the whole device is simple and convenient, the construction is fast, the manufacturing cost is low, the operation is simple, the device can be suitable for various tunnels, and compared with the manual scraping by using a scraping tool, the device has better scraping effect and higher flatness.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete scraping, in particular to a tunnel primary lining concrete scraping device. Background Art

[0002] During tunnel construction, the initial lining is a critical step, providing preliminary support and waterproofing for the tunnel. The concrete thickness of the initial tunnel lining is subject to design requirements, and the scraping operation ensures that the concrete thickness of each part of the lining meets the design standard. If the concrete surface is uneven, it is difficult to accurately judge the lining thickness. For example, on the top of the arch, if the concrete is too thick and not scraped flat, it may cause excessive local weight and increase the risk of lining falling off; while on the sidewalls, uneven thickness may cause inconsistent bearing capacity of the lining, affecting the overall structural stability of the tunnel. Scraping with a scraping device can ensure that the lining maintains a relatively consistent thickness at different locations, thereby effectively resisting the ground pressure.

[0003] Existing tunnel primary lining concrete scraping devices generally consist of a scraper and a structure supporting the scraper. For example, a tunnel primary lining concrete scraping device with a prior art publication number of CN218934417U is disclosed.

[0004] Currently, tunnel primary lining concrete is leveled manually or mechanically. Manual leveling is suitable for small-section tunnels or tunnel lining sections where surface flatness requirements are not particularly high. This method is highly flexible but relatively inefficient and is significantly affected by the worker's operating skills and experience. Mechanical leveling generally involves installing a leveling device on a tunnel primary lining trolley, which requires the trolley to work on a flat surface. This leads to high equipment costs, poor adaptability to complex tunnel cross-sections, high operating requirements, and insufficient flexibility. Therefore, the present invention provides a tunnel primary lining concrete leveling device with a simple structure, quick construction, and high leveling effect and efficiency. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a tunnel primary lining concrete scraping device, which realizes the automatic scraping of the tunnel primary lining concrete by a scraper through the cooperation of a winch and a cable. The entire device is simple, quick to construct, low in production cost, and simple to operate. It can be applied to various types of tunnels. Compared with manual scraping using scraping tools, the scraping effect of this device is better and the flatness is higher, so as to solve the problems arising in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tunnel primary lining concrete scraping device, comprising two tracks installed on a tunnel steel arch frame, a slide plate and a driving assembly for driving the slide plate to move are provided between the two tracks, the slide plate is slidably connected to the track at one end close to the track, a scraper for scraping the tunnel primary lining concrete is fixedly provided at the bottom of the slide plate, the driving assembly comprises a sleeve fixedly welded between the two tracks, a detachable winch is fixedly provided between the two rings, the winch is fixed to the slide plate and the scraper by a cable, the winch reels in the cable to drive the slide plate and the scraper to move to complete the scraping work, and a limiting assembly for limiting the cable is fixedly provided between the two tracks.

[0007] In a preferred embodiment, the limiting assembly includes multiple sliding rods, which are all slidably connected to two tracks. Each sliding rod is movably provided with a roller. One end of the cable passes around the multiple rollers in sequence, and the rollers are used to support the movement of the cable, which can effectively reduce resistance and increase efficiency.

[0008] In a preferred embodiment, a plurality of connecting frames are fixedly provided on both rails, and the plurality of connecting frames are evenly distributed on the two rails to make the forces on the rails more evenly distributed.

[0009] In a preferred embodiment, each connecting frame is detachably connected to the tunnel steel arch frame through two embedded nuts and two bolts. The embedded nuts are welded to the tunnel steel arch frame, and the track is connected to the steel arch frame by bolts, so as to facilitate rapid adjustment of the position of the track and make disassembly and assembly very quick.

[0010] In a preferred embodiment, a protective shell is provided on the outside of the winch, and two ends of the protective shell are respectively fixed together with two rings. A through hole for moving the cable is opened at the bottom of the protective shell for winding and releasing the cable.

[0011] In a preferred embodiment, a hollow tube is fixedly provided at the bottom of the protective shell. The cross-section of the hollow tube is set to be funnel-shaped, and the bottom of the hollow tube is in contact with the outer wall of the cable, which is used to remove concrete on the surface of the cable to avoid concrete clogging the perforations. It can also prevent excessive concrete from flowing into the protective shell and affecting the normal use of the winch.

[0012] The technical effects and advantages of this utility model are:

[0013] 1. The utility model realizes the automatic leveling of the tunnel's primary lining concrete by a scraper through the cooperation of a winch and a cable. The entire device is simple, quick to construct, low in production cost, and easy to operate. It can be applied to all types of tunnels. Compared with manual leveling using leveling tools, the device has better leveling effect and higher flatness.

[0014] 2. The protective shell can protect the winch and the cable. At the same time, when the cable is reeled onto the winch, the tapered tube can scrape off the concrete on the cable to prevent the concrete from contaminating the winch and affecting the normal reeling of the cable by the winch. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the use of the utility model in a tunnel;

[0017] Figure 3 This is the main view of the overall structure of the utility model;

[0018] Figure 4 This is an enlarged view of the track, slide plate and scraper of the utility model;

[0019] Figure 5 This is a schematic diagram of the slide bar and roller of the utility model;

[0020] Figure 6 This is a partial cross-sectional view of the protective shell of the present utility model;

[0021] Figure 7 This is a top view of the protective shell of the present invention.

[0022] The accompanying drawings are numerals: 1, tunnel steel arch; 2, track; 3, slide; 4, drive assembly; 5, scraper; 6, limit assembly; 7, connecting frame; 8, embedded nut; 9, bolt; 10, protective shell; 11, perforation; 12, hollow tube;

[0023] 401, ring; 402, winch; 403, cable

[0024] 601. Slider; 602. Roller. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Refer to the instruction manual Figure 1-7The utility model provides a tunnel primary lining concrete scraping device, comprising two rails 2 installed on a tunnel steel arch 1, a slide 3 and a driving assembly 4 for driving the slide 3 to move are provided between the two rails 2, the slide 3 is slidably connected to the rail 2 at one end close to the rail 2, a scraper 5 for scraping the tunnel primary lining concrete is fixedly provided at the bottom of the slide 3, the driving assembly 4 comprises a collar 401 fixedly welded between the two rails 2, a detachable winch 402 is fixedly provided between the two collars 401, the winch 402 is fixed to the slide 3 and the scraper 5 by a cable 403, the winch 402 reels the cable 403 to drive the slide 3 and the scraper 5 to move to complete the scraping work;

[0027] A limiting assembly 6 for limiting the position of the cable 403 is fixed between the two rails 2. The limiting assembly 6 includes a plurality of slide bars 601, which are slidably connected to the two rails 2. A roller 602 is movably sleeved on each slide bar 601. One end of the cable 403 passes through the plurality of rollers 602 in sequence. The rollers 602 support the movement of the cable 403, which can effectively reduce resistance and increase efficiency.

[0028] Multiple connecting frames 7 are fixed on both tracks 2, and the multiple connecting frames 7 are evenly distributed on the two tracks 2. Each connecting frame 7 is detachably connected to the tunnel steel arch frame 1 through two embedded nuts 8 and two bolts 9. The embedded nuts 8 are welded to the tunnel steel arch frame 1, and the tracks 2 are connected to the steel arch frame through bolts 9, so as to facilitate rapid adjustment of the position of the tracks 2 and make disassembly and assembly very quick.

[0029] During use, the staff first installs multiple sliding rods 601 between the two tracks 2, and at the same time installs multiple slide plates 3 between the two tracks 2, and then fixes multiple connecting frames 7 to the tunnel steel arch frame 1, and then fixes the winch 402, and passes one end of the cable 403 on the winch 402 around multiple rollers 602, and then fixes it together with the slide plate 3 and the scraper 5, and uses the winch 402 to reel in the cable 403, and the cable 403 drives the slide plate 3 and the scraper 5 from one end to the other end, and the leveling work of the initial lining concrete of the tunnel can be completed, and then the two tracks 2 are moved to the next place where the initial lining concrete of the tunnel to be leveled can be started. The device is simple, the construction is fast, the production cost is low, and the operation is simple, and it can be applied to all kinds of tunnels.

[0030] Refer to the instruction manual Figure 1-7 The outer side of the hoist 402 is provided with a protective shell 10, and the two ends of the protective shell 10 are respectively fixed together with two rings 401, and the bottom of the protective shell 10 is provided with a through hole 11 for the movement of the cable 403;

[0031] A hollow tube 12 is fixedly provided at the bottom of the protective shell 10 . The cross section of the hollow tube 12 is set to be funnel-shaped, and the bottom of the hollow tube 12 contacts the outer wall of the cable 403 to remove concrete on the surface of the cable 403 .

[0032] By setting a protective shell 10 on the outside of the winch 402, the protective shell 10 can protect the winch 402 and the cable 403. At the same time, when the cable 403 is wound onto the winch 402, the conical tube can scrape off the concrete on the cable 403 to prevent the concrete from contaminating the winch 402 and affecting the normal winding of the cable 403 by the winch 402.

[0033] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tunnel primary lining concrete scraping device, characterized by: The invention comprises two tracks (2) installed on a tunnel steel arch (1), a slide plate (3) and a driving assembly (4) for driving the slide plate (3) to move are provided between the two tracks (2), one end of the slide plate (3) close to the track (2) is slidably connected to the track (2), and a scraper (5) for scraping the initial lining concrete of the tunnel is fixedly provided at the bottom of the slide plate (3); The driving assembly (4) comprises a collar (401) fixedly welded between the two rails (2); a detachable winch (402) is fixedly provided between the two collars (401); the winch (402) is fixed to the slide plate (3) and the scraper (5) via a cable (403); the winch (402) reels the cable (403) to drive the slide plate (3) and the scraper (5) to move and complete the scraping work; A limiting assembly (6) for limiting the position of the cable (403) is fixedly provided between the two tracks (2).

2. The tunnel primary lining concrete scraping device according to claim 1, characterized in that: The limiting assembly (6) includes a plurality of sliding rods (601), each of which is slidably connected to the two tracks (2), and each of which is movably sleeved with a roller (602). One end of the cable (403) passes around the plurality of rollers (602) in sequence.

3. The tunnel primary lining concrete scraping device according to claim 1, characterized in that: A plurality of connecting frames (7) are fixedly provided on both tracks (2), and the plurality of connecting frames (7) are evenly distributed on the two tracks (2).

4. The tunnel primary lining concrete scraping device according to claim 3, characterized in that: Each connecting frame (7) is detachably connected to the tunnel steel arch frame (1) via two embedded nuts (8) and two bolts (9).

5. The tunnel primary lining concrete scraping device according to claim 1, characterized in that: The outer side of the winch (402) is provided with a protective shell (10), the two ends of the protective shell (10) are respectively fixed together with two rings (401), and the bottom of the protective shell (10) is provided with a through hole (11) for the movement of the cable (403).

6. The tunnel primary lining concrete scraping device according to claim 5, characterized in that: A hollow tube (12) is fixedly provided at the bottom of the protective shell (10); the cross section of the hollow tube (12) is arranged to be funnel-shaped, and the bottom of the hollow tube (12) contacts the outer wall of the cable (403) for removing concrete on the surface of the cable (403).

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