Tunnel formwork shotcreting concrete support construction device

Abstract

The utility model relates to the technical field of tunnel construction, and discloses a tunnel mould spraying concrete support construction device which comprises a tunnel and a movable frame, a sliding rail is fixedly installed at the bottom end of the inner wall of the tunnel, a clamping groove is formed in the bottom end of the movable frame, and the movable frame is in sliding connection with the sliding rail through the clamping groove. The inner wall of the moving frame is rotationally connected with a long rotating shaft through a first bearing, the long rotating shaft penetrates through the front face of the moving frame, and the outer wall of the long rotating shaft is rotationally connected with the moving frame through a second bearing. The cleaning quality of the inner wall of the sprayed groove is improved, and the problem that in a comparison file, the sprayed groove is cleaned only through a high-pressure water gun, so that some sundries which are attached firmly possibly exist in the sprayed groove and cannot be removed, and the combination effect of concrete and the sprayed face is affected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a tunnel sprayed concrete support construction device. Background Art

[0002] Tunnel lining refers to a permanent structure that supports and maintains the long-term stability and durability of the tunnel. Its function is to support and maintain the stability of the tunnel, maintain the space required for train operation, prevent weathering of the surrounding rock, and eliminate the influence of groundwater. Therefore, the tunnel lining must have sufficient strength, durability, and certain anti-freeze, anti-seepage and anti-erosion properties. The tunnel lining is mainly composed of arch rings, side walls, inverts and bottom plates. At present, tunnel sprayed concrete support usually adopts the direct operation method of concrete spraying machine, which can seal the surrounding rock in time and spray it in layers and in batches to the designed thickness to achieve the support purpose. The existing tunnel is affected by dust and debris on the sprayed surface, and the combination of sprayed concrete and the sprayed surface is not good.

[0003] According to a Chinese patent, a tunnel sprayed concrete support construction device is disclosed, and its announcement number is: CN217080489U. The patent drives the passive gear and the rotating rod to rotate by rotating the active gear, so that the electric push rod rotates in the sprayed slot, and the water in the water tank is pumped by the water pump, and then the high-pressure water gun is used to clean the sprayed slot, so that dust and debris are cleaned, the cleanliness of the surface of the sprayed slot is improved, the dust is cleaned in time, the construction efficiency is high, the quality of the sprayed concrete is stable, and the support effect is improved;

[0004] However, in this patent, the sprayed slot is cleaned only by a high-pressure water gun, which may result in some firmly attached debris in the sprayed slot that cannot be removed, thereby affecting the bonding effect between the concrete and the sprayed surface. For this reason, we propose a tunnel sprayed concrete support construction device. Utility Model Content

[0005] The utility model aims to provide a tunnel sprayed concrete support construction device, which solves the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tunnel sprayed concrete support construction device, comprising a tunnel and a mobile frame, wherein a slide rail is fixedly installed at the bottom end of the inner wall of the tunnel, a slot is provided at the bottom end of the mobile frame, the mobile frame is slidably connected to the slide rail through the slot, the inner wall of the mobile frame is rotatably connected to a long rotating shaft through a bearing 1, the long rotating shaft passes through the front of the mobile frame, and the outer wall of the long rotating shaft is rotatably connected to the mobile frame through a bearing 2, an electric push rod is fixedly installed on the outer wall of the long rotating shaft, a high-pressure nozzle is fixedly installed on the output end of the electric push rod, a water delivery component is fixedly installed on the back of the mobile frame, the water delivery component is connected to the high-pressure nozzle, a spraying groove is provided on the inner wall of the tunnel, and scraping mechanisms are provided on both sides of the high-pressure nozzle;

[0007] The scraping mechanism includes a fixing frame and a screw rod. The fixing frame is fixedly mounted on the outer wall of the long rotating shaft. The screw rod is threadedly connected to a threaded hole opened at the top of the fixing frame. The top of the screw is rotatably connected to a scraper through a bearing. The scraper is slidably connected to the inner wall of the sprayed slot. A limiting rod is fixedly mounted on the bottom end of the scraper. A rod hole is opened at the top of the fixing frame. The limiting rod movably passes through the top of the fixing frame through the rod hole. A rotating plate is fixedly mounted on the bottom end of the screw.

[0008] Preferably, the number of the limiting rods and the rod holes are both two, and the limiting rods are adapted to the rod holes. By setting the limiting rods and the rod holes, the scraper can be limited to prevent the scraper from rotating with the screw rod, thereby ensuring the normal use of the scraper.

[0009] Preferably, a driven gear is fixedly installed on the front side of the long rotating shaft, an organic groove is provided on the front side of the fixing frame, a motor is fixedly installed on the inner wall of the organic groove, a short rotating shaft is fixedly installed on the output end of the motor, a driving gear is fixedly installed on one end of the short rotating shaft, and the driving gear is meshed with the driven gear. By setting the organic groove, the motor can be protected and fixed.

[0010] Preferably, a limiting slide is fixedly installed on the inner wall of the slot, limiting slide grooves are provided on both sides of the slide rail, and the limiting slide is slidably connected to the limiting slide. By setting the limiting slide and the limiting slide, the movable frame can be limited.

[0011] Preferably, there are two limiting slide plates in the slot, and the limiting slide plates are adapted to the limiting slot.

[0012] Preferably, a fixing plate is fixedly installed on the top of the inner wall of the slot, and the number of the fixing plates is two. A connecting shaft is rotatably connected between the two fixing plates through bearing four. A roller is provided on the fixed sleeve of the outer wall of the connecting shaft. A rolling groove is opened on the top of the slide rail, and the roller is rollingly connected to the rolling groove.

[0013] Preferably, the number of the card slots and the number of the slide rails are both two, and the slide rails are adapted to the card slots.

[0014] The utility model provides a tunnel sprayed concrete support construction device. The tunnel sprayed concrete support construction device has the following beneficial effects:

[0015] (1) The tunnel sprayed concrete support construction device is provided with a scraping mechanism, which enables the scraper to scrape the inner wall of the sprayed slot, thereby scraping off the sundries firmly attached to the sprayed slot, improving the cleaning quality of the inner wall of the sprayed slot, and solving the problem in the reference document that the sprayed slot is cleaned only by a high-pressure water gun, resulting in some sundries firmly attached to the sprayed slot that cannot be removed, thereby affecting the bonding effect of the concrete and the sprayed surface;

[0016] (2) The tunnel sprayed concrete support construction device can reduce the friction between the slot and the slide rail by cooperating with the fixed plate, roller, connecting shaft and rolling groove, thereby improving the flexibility of the mobile frame during movement, reducing the wear between the mobile frame and the slide rail, and increasing the service life of the device. It has a simple structure and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the side sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the back structure of the utility model;

[0020] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0021] Figure 5 For this utility model Figure 3 Schematic diagram of the enlarged structure of part B in the middle.

[0022] In the figure: 1, tunnel; 2, moving frame; 3, slot; 4, slide rail; 5, long rotating shaft; 6, scraping mechanism; 7, spraying slot; 8, electric push rod; 9, high-pressure water gun; 10, driven gear; 11, motor; 12, machine slot; 13, short rotating shaft; 14, driving gear; 15, water delivery component; 16, fixed plate; 17, roller; 18, connecting shaft; 19, limiting slide plate; 20, limiting slide slot; 21, rolling slot; 601, fixed frame; 602, screw; 603, rotating plate; 604, limiting rod; 605, rod hole; 606, scraper. DETAILED DESCRIPTION

[0023] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0024] Embodiment 1:

[0025] The tunnel sprayed concrete support construction device provided by the utility model is preferably implemented as follows Figures 1 to 5 As shown: a tunnel sprayed concrete support construction device, including a tunnel 1, a mobile frame 2, a slide rail 4 is fixedly installed at the bottom of the inner wall of the tunnel 1, a slot 3 is opened at the bottom of the mobile frame 2, the mobile frame 2 is slidably connected to the slide rail 4 through the slot 3, the inner wall of the mobile frame 2 is rotatably connected to a long rotating shaft 5 through a bearing 1, the long rotating shaft 5 passes through the front of the mobile frame 2, and the outer wall of the long rotating shaft 5 is rotatably connected to the mobile frame 2 through a bearing 2, an electric push rod 8 is fixedly installed on the outer wall of the long rotating shaft 5, a high-pressure nozzle is fixedly installed on the output end of the electric push rod 8, a water delivery component 15 is fixedly installed on the back of the mobile frame 2, the water delivery component 15 is connected to the high-pressure nozzle, a spraying groove 7 is opened on the inner wall of the tunnel 1, and scraping mechanisms 6 are arranged on both sides of the high-pressure nozzle;

[0026] The scraping mechanism 6 includes a fixed frame 601 and a screw 602. The fixed frame 601 is fixedly installed on the outer wall of the long rotating shaft 5. The screw 602 is threadedly connected to the threaded hole opened at the top of the fixed frame 601. The top of the screw 602 is rotatably connected with a scraper 606 through bearing three. The scraper 606 is slidably connected to the inner wall of the sprayed groove 7. A limiting rod 604 is fixedly installed at the bottom end of the scraper 606. A rod hole 605 is opened at the top of the fixed frame 601. The limiting rod 604 movably passes through the rod hole 605 and penetrates the top of the fixed frame 601. A rotating plate 603 is fixedly installed at the bottom end of the screw 602.

[0027] Specifically, the rotating plate 603 is rotated, the rotating plate 603 drives the screw 602 to rotate, the screw 602 drives the scraper 606 to move upward, so that the scraper 606 contacts the inner wall of the spraying slot 7, and then the motor 11 is started to reciprocate forward and reverse, the high-pressure water gun 9 is started, the motor 11 drives the short shaft 13 to rotate, the short shaft 13 drives the driving gear 14, the driving gear 14 drives the driven gear 10 to rotate, the driven gear 10 drives the long shaft 5 to rotate, and the long shaft 5 drives the high-pressure nozzle to make a reciprocating circular motion to the left and right through the electric push rod 8, so that the high-pressure nozzle hits the spraying slot 7. The spraying slot 7 is sprayed, and the long rotating shaft 5 also drives the fixed frame 601 to make a reciprocating circular motion to the left and right. The fixed frame 601 drives the scraper 606 to scrape the inner wall of the sprayed slot 7 through the screw 602 and the limit rod 604, so as to scrape off the sundries firmly attached to the sprayed slot 7, improve the cleaning quality of the inner wall of the sprayed slot 7, and solve the problem in the comparative document that the sprayed slot 7 is cleaned only by the high-pressure water gun 9, resulting in some sundries firmly attached to the sprayed slot 7 that cannot be removed, thereby affecting the bonding effect of the concrete and the sprayed surface.

[0028] Furthermore, the number of the limiting rods 604 and the rod holes 605 are both two, and the limiting rods 604 and the rod holes 605 are adapted to each other;

[0029] The limiting rod 604 and the rod hole 605 are provided to limit the scraper 606 , thereby preventing the scraper 606 from rotating along with the screw rod 602 , and ensuring the normal use of the scraper 606 .

[0030] Furthermore, a driven gear 10 is fixedly installed on the front of the long rotating shaft 5, a machine slot 12 is provided on the front of the fixed frame 601, a motor 11 is fixedly installed on the inner wall of the machine slot 12, a short rotating shaft 13 is fixedly installed on the output end of the motor 11, a driving gear 14 is fixedly installed on one end of the short rotating shaft 13, and the driving gear 14 is meshed with the driven gear 10;

[0031] The motor 11 can be protected and fixed by providing the machine slot 12 .

[0032] Furthermore, a limiting slide plate 19 is fixedly installed on the inner wall of the card slot 3, and limiting slide grooves 20 are provided on both sides of the slide rail 4, and the limiting slide plate 19 is slidably connected with the limiting slide grooves 20;

[0033] The limiting slide plate 19 and the limiting slide groove 20 are provided to limit the movable frame 2 .

[0034] Furthermore, there are two limiting slide plates 19 in the slot 3 , and the limiting slide plates 19 are matched with the limiting slot 20 .

[0035] Embodiment 2:

[0036] On the basis of the first embodiment, the tunnel sprayed concrete support construction device provided by the utility model is preferably implemented as follows Figures 1 to 5 As shown: a fixing plate 16 is fixedly installed at the top of the inner wall of the slot 3, and there are two fixing plates 16. A connecting shaft 18 is rotatably connected between the two fixing plates 16 through a bearing 4. A roller 17 is fixedly sleeved on the outer wall of the connecting shaft 18. A rolling groove 21 is opened at the top of the slide rail 4, and the roller 17 is rollingly connected to the rolling groove 21.

[0037] Specifically, in the above technical solution, when the mobile frame 2 moves, the fixed plate 16 drives the roller 17 to roll in the rolling groove 21. By setting the roller 17, the friction between the card slot 3 and the slide rail 4 can be reduced, thereby improving the flexibility of the mobile frame 2 when moving, and reducing the wear between the mobile frame 2 and the slide rail 4, thereby increasing the service life of the device. The structure is simple and the practicability is strong.

[0038] Furthermore, the number of the card slots 3 and the number of the slide rails 4 are both two, and the slide rails 4 are adapted to the card slots 3 .

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A tunnel sprayed concrete support construction device, comprising a tunnel (1) and a mobile frame (2), characterized in that: A slide rail (4) is fixedly mounted on the bottom end of the inner wall of the tunnel (1); a slot (3) is provided at the bottom end of the movable frame (2); the movable frame (2) is slidably connected to the slide rail (4) through the slot (3); a long rotating shaft (5) is rotatably connected to the inner wall of the movable frame (2) through a first bearing; the long rotating shaft (5) passes through the front of the movable frame (2); and the outer wall of the long rotating shaft (5) is rotatably connected to the movable frame (2) through a second bearing; an electric push rod (8) is fixedly mounted on the outer wall of the long rotating shaft (5); a high-pressure nozzle is fixedly mounted on the output end of the electric push rod (8); a water delivery component (15) is fixedly mounted on the back of the movable frame (2); the water delivery component (15) is connected to the high-pressure nozzle; a spray receiving groove (7) is provided on the inner wall of the tunnel (1); and scraping mechanisms (6) are provided on both sides of the high-pressure nozzle; The scraping mechanism (6) comprises a fixing frame (601) and a screw rod (602). The fixing frame (601) is fixedly mounted on the outer wall of the long rotating shaft (5). The screw rod (602) is threadedly connected to a threaded hole provided at the top of the fixing frame (601). A scraper (606) is rotatably connected to the top of the screw rod (602) via a bearing. The scraper (606) is slidably connected to the inner wall of the spraying slot (7). A limiting rod (604) is fixedly mounted on the bottom end of the scraper (606). A rod hole (605) is provided at the top end of the fixing frame (601). The limiting rod (604) movably passes through the top end of the fixing frame (601) through the rod hole (605). A rotating plate (603) is fixedly mounted on the bottom end of the screw rod (602).

2. A tunnel sprayed concrete support construction device according to claim 1, characterized in that: The number of the limiting rods (604) and the number of the rod holes (605) are both two, and the limiting rods (604) and the rod holes (605) are adapted to each other.

3. A tunnel sprayed concrete support construction device according to claim 1, characterized in that: A driven gear (10) is fixedly mounted on the front of the long rotating shaft (5); a machine slot (12) is provided on the front of the fixing frame (601); a motor (11) is fixedly mounted on the inner wall of the machine slot (12); a short rotating shaft (13) is fixedly mounted on the output end of the motor (11); a driving gear (14) is fixedly mounted on one end of the short rotating shaft (13); and the driving gear (14) is meshed with the driven gear (10).

4. A tunnel sprayed concrete support construction device according to claim 1, characterized in that: A limiting slide plate (19) is fixedly mounted on the inner wall of the clamping slot (3), and limiting slide grooves (20) are provided on both sides of the slide rail (4), and the limiting slide plate (19) is slidably connected to the limiting slide grooves (20).

5. A tunnel sprayed concrete support construction device according to claim 4, characterized in that: The number of the limiting slide plates (19) in the clamping slot (3) is two, and the limiting slide plates (19) are adapted to the limiting slide slot (20).

6. A tunnel sprayed concrete support construction device according to claim 1, characterized in that: A fixing plate (16) is fixedly mounted on the top of the inner wall of the card slot (3), the number of the fixing plates (16) is two, a connecting shaft (18) is rotatably connected between the two fixing plates (16) via a bearing, a roller (17) is fixedly sleeved on the outer wall of the connecting shaft (18), a rolling groove (21) is provided on the top of the slide rail (4), and the roller (17) is rollingly connected to the rolling groove (21).

7. A tunnel sprayed concrete support construction device according to claim 1, characterized in that: The number of the card slots (3) and the number of the slide rails (4) are both two, and the slide rails (4) are adapted to the card slots (3).

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