Accurate positioning tunnel construction trolley

Abstract

The utility model relates to the technical field of tunnel construction equipment, and discloses an accurate positioning tunnel construction trolley which comprises a door-shaped frame, universal wheels are installed at the bottom of the door-shaped frame, a total station is installed on the door-shaped frame, telescopic supporting legs are further installed at the bottom of the door-shaped frame, and the supporting legs are used for lifting the door-shaped frame. Sliding pieces are installed at the bottoms of the supporting legs, and the sliding direction of the sliding pieces is parallel to the door-shaped face of the door-shaped frame. The trolley has the advantages that after the trolley moves to an approximate position to be constructed through cooperation of the universal wheels and the total station, the door-shaped frame is lifted to a design construction position of a tunnel vault through the oil cylinder A, the accurate position of the trolley is adjusted in cooperation with the oil cylinder B, it is guaranteed that arc-shaped steel bars are laid to the design position, and construction efficiency is improved. And the later project quality is prevented from being influenced by laying position deviation.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction equipment technology, and in particular to a tunnel construction trolley with precise positioning. Background Technology

[0002] In tunnel construction projects, waterproofing and circumferential steel bars need to be laid along the inner wall of the tunnel before concrete pouring. Construction trolleys are usually required. Before laying the curved steel bars, the trolley needs to be moved to the designated position and then the laying can begin to avoid deviations in the position of the steel bars, which could affect the quality of the project.

[0003] Chinese utility model patent (authorization announcement number: CN209469438U, title: Tunnel Excavation Trolley) includes a bottom trolley and an upper trolley mounted on the bottom trolley; the upper trolley has at least one layer and is capable of longitudinal movement relative to the bottom trolley; and when the upper trolley has multiple layers, each layer of the upper trolley has independent travel power and is capable of longitudinal movement relative to the adjacent lower layer. Preferably, the bottom trolley is mounted on a wheeled frame; the upper trolley consists of an intermediate layer trolley and a top layer trolley, the intermediate layer trolley being capable of longitudinal movement relative to the bottom trolley; the top layer trolley being capable of longitudinal movement relative to the intermediate layer trolley; one end of the bottom trolley is provided with a trestle, rail bridge, or suspension bridge for the intermediate layer trolley to travel on; one end of the intermediate layer trolley is provided with a trestle or rail bridge for the top layer trolley to travel on. The beneficial effects of this utility model are that it is in the form of a multi-layer combination, which can be adapted to full-section, double-step or triple-step tunnel excavation by changing the combination state. It has a wide range of applications, can be reused and effectively reduce tunnel excavation costs. However, its wheeled frame lacks an adjustment structure for the precise position of the trolley. The trolley can only be pushed to the approximate position manually, which makes it impossible to guarantee the accuracy of the reinforcement laying position and affects the quality of the project. Utility Model Content

[0004] The purpose of this invention is to provide a tunnel construction trolley with precise positioning to overcome the shortcomings of the prior art.

[0005] The purpose of this utility model is achieved through the following technical solution: a tunnel construction trolley for precise positioning, including a portal frame, universal wheels installed at the bottom of the portal frame, a total station installed on the portal frame, and retractable support legs installed at the bottom of the portal frame. The support legs are used to lift the portal frame, and a sliding component is installed at the bottom of the support legs. The sliding direction of the sliding component is parallel to the portal surface of the portal frame.

[0006] Preferably, the support leg includes an outer cylinder and an inner cylinder. The outer cylinder is fixed on the portal frame, and the inner cylinder is inserted into the outer cylinder. An A hydraulic cylinder is installed inside the inner cylinder, and the A hydraulic cylinder is rotatably connected to the outer cylinder and the inner cylinder.

[0007] Preferably, the sliding component includes a base and a hollow slider. A guide rail for supporting the slider is fixed on the base. A pawl is fixed on the side wall of the slider. The pawl is used to hang the base on the slider. A B-cylinder is installed inside the slider. The B-cylinder is rotatably connected to the base and the slider.

[0008] Preferably, a leveling seat is installed on the top of the portal frame, the leveling seat being used to fix the total station onto the portal frame.

[0009] Preferably, the leveling seat includes a base plate, a mounting plate, and a spring. A channel steel is fixed to the bottom of the base plate and is used to clamp onto the portal frame. A locking bolt is screwed onto the channel steel. A plurality of threaded holes arranged in a matrix are opened in the middle of the mounting plate. A waist-shaped hole is opened at each of the four corners of the mounting plate. A lead rod passing through the waist-shaped hole is fixed on the base plate. A nut is screwed onto the lead rod and is used to compress the spring sleeved on the lead rod. The spring is located between the base plate and the mounting plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] After the trolley is moved to the approximate location to be constructed using the omnidirectional wheels and total station, the portal frame is lifted to the designed construction position on the tunnel arch using cylinder A. Then, cylinder B is used to adjust the precise position of the trolley to ensure that the curved steel bars are laid in the designed position, thus avoiding deviations in the laying position from affecting the quality of the subsequent project. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0014] Figure 3 This is a schematic diagram of the installation structure of cylinder B;

[0015] Figure 4 This is a schematic diagram of the leveling seat.

[0016] In the diagram, 1-Gate frame, 2-Wheel caster, 3-Outer cylinder, 4-Inner cylinder, 5-Base, 6-Slider, 7-Guide rail, 8-Claw, 9-B cylinder, 10-Base plate, 11-Mounting plate, 12-Spring, 13-Channel steel, 14-Locking bolt, 15-Threaded hole, 16-Oval hole, 17-Lead screw, 18-Nut. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used 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," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0023] like Figure 1-3As shown, a precision-positioning tunnel construction trolley includes a portal frame 1. Universal wheels 2 are installed at the bottom of the portal frame 1. A total station (not shown) is mounted on the portal frame 1. A leveling seat (not shown) is installed at the top of the portal frame 1 to fix the total station to the portal frame 1. Telescopic support legs are also installed at the bottom of the portal frame 1 to lift the portal frame 1. Sliding components are installed at the bottom of the support legs, with the sliding direction parallel to the portal plane of the portal frame 1. Specifically, the support legs include an outer cylinder 3 and an inner cylinder 4. The outer cylinder 3 is fixed to the portal frame 1, and the inner cylinder 4 is inserted into the outer cylinder 3. A hydraulic cylinder A (not shown) is installed inside the inner cylinder 4. The trolley is rotatably connected to cylinder A (outer cylinder 3) and cylinder A (inner cylinder 4). The sliding component includes a base 5 and a hollow slider 6. A guide rail 7 is fixed on the base 5 to support the slider 6. A claw 8 is fixed on the side wall of the slider 6. The claw 8 is used to hang the base 5 on the slider 6. Cylinder B 9 is installed inside the slider 6. Cylinder B 9 is rotatably connected to the base 5 and the slider 6. After the trolley is moved to the approximate construction position by the cooperation of casters 2 and total station, cylinder A lifts the portal frame 1 to the designed construction position of the tunnel arch. Then, cylinder B 9 is used to adjust the precise position of the trolley to ensure that the curved steel bars are laid to the designed position and to avoid the deviation of the laying position from affecting the quality of the later project.

[0024] In this embodiment, as Figure 4 As shown, the leveling base includes a base plate 10, a mounting plate 11, and a spring 12. A channel steel 13 is fixed to the bottom of the base plate 10. The channel steel 13 is used to clamp onto the portal frame 1. A locking bolt 14 is screwed onto the channel steel 13. Several threaded holes 15 arranged in a matrix are opened in the middle of the mounting plate 11 (which can be detachably connected to the total station by bolts). There are oblong holes 16 at the four corners of the mounting plate 11. A lead rod 17 passing through the oblong holes 16 is fixed on the base plate 10. A nut 18 is screwed onto the lead rod 17. The nut 18 is used to compress the spring 12 sleeved on the lead rod 17. The spring 12 is located between the base plate 10 and the mounting plate 11. The leveling base can be used to adjust the position of the ground laser on the horizontal plane, which is convenient for the calibration of the total station with the ground benchmark.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A precision-positioning tunnel construction trolley, comprising a portal frame (1), wherein the bottom of the portal frame (1) is equipped with casters (2), characterized in that: A total station is installed on the portal frame (1). A retractable support leg is also installed at the bottom of the portal frame (1). The support leg is used to lift the portal frame (1). A sliding member is installed at the bottom of the support leg. The sliding direction of the sliding member is parallel to the portal surface of the portal frame (1).

2. The tunnel construction trolley with precise positioning according to claim 1, characterized in that: The support leg includes an outer cylinder (3) and an inner cylinder (4). The outer cylinder (3) is fixed on the portal frame (1). The inner cylinder (4) is inserted into the outer cylinder (3). An A cylinder is provided in the inner cylinder (4). The A cylinder is rotatably connected to the outer cylinder (3) and the A cylinder is rotatably connected to the inner cylinder (4).

3. The tunnel construction trolley with precise positioning according to claim 1, characterized in that: The sliding component includes a base (5) and a hollow slider (6). A guide rail (7) for supporting the slider (6) is fixed on the base (5). A claw (8) is fixed on the side wall of the slider (6). The claw (8) is used to hang the base (5) on the slider (6). A B cylinder (9) is installed inside the slider (6). The B cylinder (9) is rotatably connected to the base (5) and the slider (6).

4. The tunnel construction trolley with precise positioning according to claim 1, characterized in that: A leveling seat is installed on the top of the portal frame (1), which is used to fix the total station on the portal frame (1).

5. A tunnel construction trolley for precise positioning according to claim 4, characterized in that: The leveling seat includes a base plate (10), a mounting plate (11), and a spring (12). A channel steel (13) is fixed to the bottom of the base plate (10). The channel steel (13) is used to be clamped on the portal frame (1). A locking bolt (14) is screwed onto the channel steel (13). A number of threaded holes (15) are provided in the middle of the mounting plate (11) in a matrix distribution. A waist-shaped hole (16) is provided at each of the four corners of the mounting plate (11). A lead screw (17) passing through the waist-shaped hole (16) is fixed on the base plate (10). A nut (18) is screwed onto the lead screw (17). The nut (18) is used to compress the spring (12) sleeved on the lead screw (17). The spring (12) is located between the base plate (10) and the mounting plate (11).

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