A tunnel steel arch installation positioning device

Abstract

The utility model relates to steel arch installation technical field discloses a kind of tunnel steel arch installation positioning device, including support base, sliding bearing bracket is equipped between vertical frame one and vertical frame two, the upper end of bearing bracket is fixed with horizontal plate, and guiding groove two is opened in horizontal plate, screw rod one is installed in guiding groove two by bearing, driving block is slidably arranged on horizontal plate, and the threaded hole that is compatible with screw rod one is opened in driving block, the top of driving block is equipped with two groups of horizontal supporting plate, L type vertical plate is movably installed on two groups of horizontal supporting plate, and long hole is opened on every group of horizontal supporting plate, and stud is penetrated in long hole, the utility model can drive L type vertical plate to close arch by pushing horizontal supporting plate, then L type vertical plate is driven by shaft rod and is completely attached with arch side surface, by rotating hand wheel, screw rod one can be driven to drive horizontal plate whole left and right adjustment, so that arch can be completed synchronous horizontal alignment in lifting process, so as to improve the different installation needs of arch in tunnel construction.

Description

Technical Field

[0001] This utility model relates to the field of steel arch frame installation technology, and in particular to a positioning device for installing steel arch frames in tunnels. Background Technology

[0002] A tunnel is an engineering structure buried underground, a form of human utilization of underground space. Tunnels can be categorized into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels, and military tunnels. The structure of a tunnel includes two parts: the main structure and auxiliary equipment. The main structure consists of the tunnel body and portals, while auxiliary equipment includes passing bays, fire-fighting facilities, emergency communication systems, and drainage systems. Longer tunnels also have specialized ventilation and lighting equipment. Steel arches are a rigid structure used in underground engineering support, primarily for reinforcing weak and fractured surrounding rock. They form a composite support system with anchor bolts, shotcrete, and other materials. An existing installation and positioning device for tunnel steel arch frames (Announcement No.: CN212837856U) can adjust the length with the help of telescopic sleeves and limiting pins, but it can only achieve height adjustment in one direction, which is difficult to adapt to the diverse alignment requirements of steel arch frames. Furthermore, the top support relies on adjusting bolts and clamping blocks to adjust the unfolding width, which cannot adapt to arch frames with different curvatures. Not only is the clamping fit poor, but it is also prone to slippage. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a tunnel steel arch frame installation and positioning device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A tunnel steel arch frame installation and positioning device includes a support base, a scaffold fixed to one side of the support base, a vertical frame one fixed to one side of the upper end of the support base, a vertical frame two fixed to the other side of the support base, a bearing frame slidably arranged between the vertical frame one and the vertical frame two, a horizontal plate fixed to the upper end of the bearing frame, a guide groove two opened on the horizontal plate, a lead screw one installed in the guide groove two through a bearing, a driving block slidably arranged on the horizontal plate, a threaded hole adapted to the lead screw one opened in the driving block, two sets of transverse support plates are provided on the top of the driving block, an L-shaped vertical plate is movably installed on each set of transverse support plates, and an elongated hole is opened on each set of transverse support plates, a stud is passed through the elongated hole, and a nut one is installed on the top of the stud through a thread.

[0005] As a further embodiment of this utility model, a shaft is provided on the transverse support plate, one end of which is connected to the transverse support plate via a bearing, and the other end of which passes through the side wall of the transverse support plate.

[0006] As a further embodiment of this utility model, the outer end of the shaft is provided with a second nut, and the shaft is provided with a thread that matches the second nut. An L-shaped vertical plate is connected through the shaft, and a guide groove is provided on one side of the second guide groove.

[0007] As a further embodiment of this utility model, a slide rod is fixed inside the guide groove, a drive block passes through the slide rod, and a handwheel is fixed to the outer end of the lead screw.

[0008] As a further embodiment of this utility model, a lead screw 2 is installed inside the vertical frame 1, the bottom end of the lead screw 2 is connected to the inside of the vertical frame 1 through a bearing, and a motor is installed at the top of the vertical frame 1 through fasteners.

[0009] As a further embodiment of this utility model, the motor is fixedly connected to the lead screw two via the output shaft, and the end of the support frame near the lead screw two is provided with a threaded hole that matches the lead screw two.

[0010] As a further embodiment of this utility model, the bottom end of the stud is fixedly connected to the horizontal plate, the inside of the second vertical frame is fixed with the second sliding rod, the support frame passes through the second sliding rod, and the first vertical frame and the second vertical frame are symmetrically distributed on the support base.

[0011] Compared with the prior art, the present invention has the following beneficial effects: By using components such as the horizontal support plate, L-shaped vertical plate, shaft, stud, and nuts one and two, it can flexibly adapt to steel arch frames of different widths and curvatures. When nut one on the stud is loosened, pushing the horizontal support plate will cause the L-shaped vertical plate to move closer to the arch frame. Then, the angle of the L-shaped vertical plate can be adaptively adjusted through the shaft, so that it is completely in contact with the side of the arch frame. This ensures that all types of arch frames can be stably supported by the horizontal support plate. After the height is adjusted to the correct position, turning the handwheel will drive screw one to adjust the horizontal plate left and right. This allows the arch frame to be horizontally aligned simultaneously during the lifting process, thereby improving the different installation requirements of arch frames in tunnel construction. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a tunnel steel arch frame installation and positioning device proposed in this utility model; Figure 2 This is a cross-sectional structural diagram of a tunnel steel arch frame installation and positioning device proposed in this utility model; Figure 3 for Figure 1 Enlarged diagram of point A in the diagram; Figure 4 for Figure 2 Enlarged diagram of point B in the diagram; Figure 5 This is a schematic diagram of the horizontal plate structure of a tunnel steel arch frame installation and positioning device proposed in this utility model; Figure 6This is a schematic diagram of the horizontal support plate disassembly structure of a tunnel steel arch frame installation and positioning device proposed in this utility model.

[0013] In the diagram: 1. Support base; 2. Scaffold; 3. Bearing frame; 301. Horizontal plate; 302. Drive block; 303. Guide groove one; 304. Slide rod one; 305. Handwheel; 306. Lead screw one; 307. Guide groove two; 4. Vertical frame one; 401. Motor; 402. Lead screw two; 5. Vertical frame two; 501. Slide rod two; 6. Horizontal support plate; 601. L-shaped vertical plate; 602. Long hole; 603. Stud; 604. Nut one; 605. Shaft; 606. Nut two. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] Reference Figures 1-6A tunnel steel arch frame installation and positioning device includes a support base 1, a scaffold 2 fixed to one side of the support base 1, a vertical frame 4 fixed to one side of the upper end of the support base 1, a second vertical frame 5 fixed to the other side of the support base 1, a bearing frame 3 slidably arranged between the first vertical frame 4 and the second vertical frame 5, a horizontal plate 301 fixed to the upper end of the bearing frame 3, a guide groove 307 opened on the horizontal plate 301, a lead screw 306 installed in the guide groove 307 through a bearing, a driving block 302 slidably arranged on the horizontal plate 301, a threaded hole adapted to the lead screw 306 opened in the driving block 302, two sets of transverse support plates 6 are provided on the top of the driving block 302, an L-shaped vertical plate 601 is movably installed on each set of transverse support plates 6, and an elongated hole 602 is opened on each set of transverse support plates 602, a stud 603 passes through the elongated hole 602, and a nut 604 is installed on the top of the stud 603 through a thread.

[0018] Loosen nut 604 on stud 603, push the transverse support plate 6 to move the L-shaped vertical plate 601 closer to the arch frame, then loosen nut 606, rotate shaft 605 to adjust the tilt angle of the L-shaped vertical plate 601 so that it is completely in contact with the side of the arch frame, then tighten nut 604 and nut 606 to securely support the arch frame on the transverse support plate 6. Next, start motor 401. Motor 401 drives lead screw 402 to rotate through output shaft, cooperating with the sliding mechanism in vertical frame 5. Rod 2 501 drives the bearing frame 3 and the transverse support plate 6 to rise and fall stably as a whole, thereby reaching the preset installation height. Then, the operator can stand on the scaffold 2, turn the handwheel 305, drive the lead screw 306 to rotate, and under the guidance of the guide groove 303 and the slide rod 304, drive the arch frame on the transverse support plate 6 to slide and make fine adjustments left and right, so that the arch frame can accurately complete the horizontal alignment. Finally, after the arch frame is correctly aligned, the operator completes the installation of the arch frame on the scaffold 2.

[0019] In this embodiment, a shaft 605 is provided on the transverse support plate 6. One end of the shaft 605 is connected to the transverse support plate 6 through a bearing, and the other end of the shaft 605 passes through the side wall of the transverse support plate 6.

[0020] The position of the transverse support plate 6 can be adjusted individually by using the elongated hole 602, the stud 603 and the nut 604, and the L-shaped upright plate 601 can be used to clamp and fix the arch frame of different widths.

[0021] In this embodiment, the outer end of the shaft 605 is provided with a second nut 606, and the shaft 605 is provided with a thread that is compatible with the second nut 606. The L-shaped vertical plate 601 is connected through the shaft 605, and a guide groove 303 is provided on one side of the second guide groove 307.

[0022] Both Nut 1 (604) and Nut 2 (606) can be wing nuts, which can be manually tightened or loosened by workers without tools.

[0023] In this embodiment, a slide rod 304 is fixed inside the guide groove 303, a drive block 302 passes through the slide rod 304, and a handwheel 305 is fixed to the outer end of the lead screw 306.

[0024] The slide bar 501 and the lead screw 402 work together to provide stable guidance for the lifting and lowering movement of the support frame 3, preventing uneven loading or swaying during the lifting and lowering process.

[0025] In this embodiment, a lead screw 402 is installed inside the vertical frame 4. The bottom end of the lead screw 402 is connected to the inside of the vertical frame 4 through a bearing. A motor 401 is installed on the top of the vertical frame 4 through fasteners.

[0026] Rubber pads are glued to the inner walls of both sets of L-shaped vertical plates 601 to facilitate the clamping and positioning of the arch frame.

[0027] In this embodiment, the motor 401 is fixedly connected to the lead screw 402 via the output shaft, and the bearing frame 3 has a threaded hole that matches the lead screw 402 at one end near the lead screw 402.

[0028] The L-shaped upright plate 601 can be tilted at an angle by means of the shaft 605, so that it can adapt to the side of the arch frame with different curvatures, ensuring a stable clamping without damaging the arch frame.

[0029] In this embodiment, the bottom end of the stud 603 is fixedly connected to the horizontal plate 301, the inside of the second vertical frame 5 is fixed with the second sliding rod 501, the support frame 3 passes through the second sliding rod 501, and the first vertical frame 4 and the second vertical frame 5 are symmetrically distributed on the support base 1.

[0030] The guide groove 303 works in conjunction with the slide bar 304 to provide precise guidance for the left and right movement of the horizontal plate 301, avoiding deviation or jamming during fine-tuning.

[0031] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: First, the support base 1 is placed on the flat ground of the tunnel construction site. Then, the steel arch frame to be installed is hoisted above the transverse support plate 6. The workers only need to loosen the nut 604 on the stud 603, push the transverse support plate 6 to move the L-shaped vertical plate 601 closer to the arch frame, then loosen the nut 606, rotate the shaft 605, and adjust the tilt angle of the L-shaped vertical plate 601 so that it is completely in contact with the side of the arch frame. Then tighten the nut 604 and the nut 606 to firmly support the arch frame on the transverse support plate 6. Then start the motor 401, and the motor 401 drives the lead screw 2 through the output shaft. Rotating 402, in conjunction with the sliding rod 501 within the vertical frame 2 5, drives the support frame 3 and the transverse support plate 6 to rise and fall stably as a whole, thereby reaching the preset installation height. Afterwards, the operator can stand on the scaffold 2, turn the handwheel 305, and drive the lead screw 306 to rotate. Under the guidance of the guide groove 303 and the sliding rod 304, the arch frame on the transverse support plate 6 is slid and finely adjusted left and right, so that the arch frame is accurately aligned horizontally. Finally, after the arch frame is correctly aligned, the operator completes the installation of the arch frame on the scaffold 2. After the installation is completed, loosen the nut 604 and the nut 606, and start the motor 401 in reverse to reset the transverse support plate 6, preparing for the installation and adjustment of the next set of arch frames.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A tunnel steel arch frame installation and positioning device, comprising a support base (1), characterized in that: A scaffold (2) is fixed to one side of the support base (1), a vertical frame (4) is fixed to one side of the upper end of the support base (1), and a vertical frame (5) is fixed to the other side of the support base (1). A support frame (3) is slidably provided between the vertical frame (4) and the vertical frame (5). A horizontal plate (301) is fixed to the upper end of the support frame (3). A guide groove (307) is provided on the horizontal plate (301). A lead screw (306) is installed in the guide groove (307) through a bearing. 01) A drive block (302) is slidably provided on the upper part. The drive block (302) has a threaded hole that is compatible with the lead screw (306). The top of the drive block (302) is provided with two sets of transverse support plates (6). An L-shaped vertical plate (601) is movably installed on each set of transverse support plates (6). Each set of transverse support plates (6) has an elongated hole (602). A stud (603) passes through the elongated hole (602). A nut (604) is installed on the top of the stud (603) by thread.

2. The tunnel steel arch frame installation and positioning device according to claim 1, characterized in that, The transverse support plate (6) is provided with a shaft (605), one end of which is connected to the transverse support plate (6) by a bearing, and the other end of which passes through the side wall of the transverse support plate (6).

3. The tunnel steel arch frame installation and positioning device according to claim 2, characterized in that, The outer end of the shaft (605) is provided with a second nut (606), and the shaft (605) is provided with a thread that is compatible with the second nut (606). The L-shaped vertical plate (601) is connected through the shaft (605), and a guide groove (303) is provided on one side of the second guide groove (307).

4. The tunnel steel arch frame installation and positioning device according to claim 3, characterized in that, A slide rod (304) is fixed inside the guide groove (303), the drive block (302) passes through the slide rod (304), and a handwheel (305) is fixed at the outer end of the lead screw (306).

5. The tunnel steel arch frame installation and positioning device according to claim 1, characterized in that, The first vertical frame (4) is equipped with a second lead screw (402). The bottom end of the second lead screw (402) is connected to the inside of the first vertical frame (4) through a bearing. The top of the first vertical frame (4) is equipped with a motor (401) through fasteners.

6. The tunnel steel arch frame installation and positioning device according to claim 5, characterized in that, The motor (401) is fixedly connected to the lead screw (402) via the output shaft, and the bearing frame (3) has a threaded hole that matches the lead screw (402) at one end near the lead screw (402).

7. The tunnel steel arch frame installation and positioning device according to claim 1, characterized in that, The bottom end of the stud (603) is fixedly connected to the horizontal plate (301), the inside of the second vertical frame (5) is fixed with the second sliding rod (501), the support frame (3) passes through the second sliding rod (501), and the first vertical frame (4) and the second vertical frame (5) are symmetrically distributed on the support base (1).

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