Tunnel excavation supporting trolley

Abstract

According to the tunnel excavation supporting trolley in the technical field of tunnel construction, when a supporting trolley body needs to be adjusted according to the width and height of a tunnel, the supporting trolley body can be moved to the middle of the tunnel firstly, and a first connecting frame is pushed towards the left side of the tunnel so that the first connecting frame can be close to the left side of the tunnel; a first operation platform is made to be close to the side wall of the tunnel, a worker can operate the first operation platform conveniently, a second connection frame can be made to be close to the right side of the tunnel synchronously, when a first connection frame and the second connection frame are moved, two third connection frames are moved synchronously, and the third connection frame on the left side moves leftwards along with the first connection frame; the third connecting frame on the right side moves rightwards along with the second connecting frame, so that the operating platform gets close to the side wall of the tunnel, and when the tunnel is high, an air cylinder is started, the connecting frames push the third connecting frames upwards, and the third connecting frames get close to the top of the tunnel.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a tunnel excavation supporting trolley. Background Art

[0002] In tunnel engineering, steel arches need to be installed as supports to prevent collapse. Currently, the installation of steel arches mainly adopts manual installation assisted by trolleys, but the conventional trolleys have a small adjustable range for the installation position of the arches, which makes it difficult to adapt to the complex conditions of different construction sites.

[0003] For example, a trolley for initial support and top-returning after tunnel face excavation disclosed in Chinese patent application number CN202120223438.1 includes an outer support frame, support base plates are fixedly connected to the lower end surfaces on both sides of the outer support frame, active rollers and multiple driven roller mechanisms are rotatably arranged at the inner ends of the two support base plates, a main support frame is fixedly connected to the upper end surface of the support base, and a truss is fixedly arranged on the main support frame. It has the following technical problems:

[0004] In the above technical solution, the structures supported by the trolley are all fixedly connected, making it difficult to adjust the support trolley according to the size of the tunnel. Utility Model Content

[0005] In order to solve the problem that the support trolley is difficult to adjust according to the size of the tunnel proposed in the above background technology, the utility model provides the following technical solutions:

[0006] A tunnel excavation support trolley, comprising a support trolley body working inside a tunnel;

[0007] The support vehicle body comprises a movable bottom plate, a first connecting frame and a second connecting frame are installed on the upper end of the bottom plate, and the first connecting frame and the second connecting frame can move left and right on the upper end of the bottom plate.

[0008] A third connecting frame is installed on the upper ends of the first connecting frame and the second connecting frame, and two third connecting frames are provided, which are distributed on the left and right sides of the support vehicle body. The first connecting frame cooperates with the second connecting frame to support and limit the third connecting frame.

[0009] The first connecting frame includes a first column, the upper end of the first column is provided with a second slide groove for limiting the third connecting frame on the left side, and the first connecting frame includes a cylinder for controlling the third connecting frame to move up and down.

[0010] The second connecting frame includes a third column, the upper end of the third column is provided with a sliding groove four for limiting the third connecting frame on the right side, and the left end of the third column is installed with a sliding rod one for limiting the first connecting frame.

[0011] Furthermore, wheels are installed at the bottom of the base plate to facilitate the movement of the support vehicle body, and connecting frames 1 for limiting the wheels are installed on both sides of the wheels.

[0012] Furthermore, a support frame for supporting the first connecting frame and the second connecting frame is installed at the upper end of the base plate, and a slide groove 1 is opened in the middle of the support frame.

[0013] Furthermore, a connecting frame 1 for supporting two third connecting frames is installed at the upper end of the cylinder, a connecting pipe for supporting the cylinder is installed at the lower end of the cylinder, and the connecting pipe is installed on the right side of the first column, and a sliding groove 3 is opened in the middle of the right side of the connecting pipe for cooperating with a pair of sliding rods to support the cylinder.

[0014] Furthermore, a horizontal plate is installed at the lower left end of the first column, a roller 2 is installed at the lower end of the horizontal plate, a second column is installed at the upper left end of the horizontal plate, an operating platform 1 is installed on the left side of the second column, and a guardrail 1 for protecting workers is installed on the left side of the operating platform 1.

[0015] Furthermore, the third connecting frame includes an operating platform 2, the third connecting frame includes an operating platform 3, a guardrail 2 is installed on one side of the operating platform 3, and a fourth column for supporting the operating platform 3 is installed at the lower end of the operating platform 2.

[0016] Furthermore, the third connecting frame includes a support block, one side of which is equipped with a cross bar for cooperating with the support block to limit the operating platform 2, and the lower end of the support block is equipped with a slide rod 2 for sliding in the groove cavity of the slide groove 2 and the slide groove 4.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] When it is necessary to adjust the support vehicle body according to the width and height of the tunnel, the support vehicle body can be moved to the middle of the tunnel first, and the first connecting frame can be pushed to the left side of the tunnel so that the first connecting frame is close to the left side of the tunnel, so that the operating platform is close to the side wall of the tunnel, which is convenient for the staff to operate, and the second connecting frame can be simultaneously approached to the right side of the tunnel. When the first connecting frame and the second connecting frame are moved, the two third connecting frames are moved simultaneously, and the left third connecting frame follows the first connecting frame to move to the left, and the right third connecting frame follows the second connecting frame to move to the right, so that the operating platform is close to the side wall of the tunnel in three directions. When the height of the tunnel is high, the cylinder is started to make the connecting frame push the third connecting frame upward, so that the third connecting frame is close to the top of the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the support vehicle body of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the first connecting frame of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the second connecting frame of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the third connecting frame of the utility model.

[0024] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0025] 10- Tunnel;

[0026] 001- support vehicle body;

[0027] 100-bottom plate, 110-wheel, 111-connecting frame 1, 120-support frame, 121-slideway 1;

[0028] 200-first connecting frame, 210-first column, 211-slideway 2, 212-roller 1, 220-cylinder, 221-connecting frame 2, 230-connecting pipe, 231-slideway 3, 240-cross plate, 241-roller 2, 250-second column, 260-operating platform 1, 261-guardrail 1;

[0029] 300-second connecting frame, 310-third upright column, 311-sliding slot four, 312-sliding rod one;

[0030] 400 - the third connecting frame, 410 - the second operating platform, 411 - the fourth column, 420 - the third operating platform, 421 - the second guardrail, 430 - the supporting block, 431 - the second sliding bar, 432 - the cross bar. DETAILED DESCRIPTION

[0031] The preferred specific implementation methods for implementing the present utility model are described in detail below, and a clear and complete description is made in conjunction with the accompanying drawings.

[0032] See also Figure 1-Figure 5The utility model provides a tunnel excavation support trolley, including a support trolley body 001, the support trolley body 001 includes a bottom plate 100, a first connecting frame 200, a second connecting frame 300 and two third connecting frames 400, and the first connecting frame 200 and the second connecting frame 300 can be adjusted left and right according to the width of the tunnel, and the two third connecting frames 400 can be moved up and down on the upper ends of the first connecting frame 200 and the second connecting frame 300 to adjust according to the height of the tunnel.

[0033] The support vehicle body 001 includes a movable bottom plate 100, and wheels 110 are installed at the bottom of the bottom plate 100 to facilitate the movement of the support vehicle body 001. Connecting frames 111 for limiting the wheels 110 are installed on both sides of the wheels 110, and the connecting frames 111 are fixedly installed at the bottom of the bottom plate 100. A support frame 120 for supporting the first connecting frame 200 and the second connecting frame 300 is installed at the upper end of the bottom plate 100, and a slide groove 121 is opened in the middle of the support frame 120, and the first column 210 and the third column 310 slide left and right in the groove cavity of the slide groove 121.

[0034] The first connecting frame 200 and the second connecting frame 300 are installed on the upper end of the bottom plate 100 , and the first connecting frame 200 and the second connecting frame 300 can move left and right on the upper end of the bottom plate 100 .

[0035] The first connecting frame 200 includes a first column 210, and a slide groove 211 for limiting the third connecting frame 400 on the left side is opened at the upper end of the first column 210. The first connecting frame 200 includes a cylinder 220 for controlling the third connecting frame 400 to move up and down, and a connecting frame 221 for supporting the two third connecting frames 400 is fixedly installed on the upper end of the cylinder 220, and a connecting pipe 230 for supporting the cylinder 220 is installed at the lower end of the cylinder 220, and the connecting pipe 230 is fixedly installed on the right side of the first column 210. A slide groove 3 231 for cooperating with a slide rod 1 312 to support the cylinder 220 is opened in the middle of the right side of the connecting pipe 230, and the slide rod 1 312 slides in the middle of the groove cavity of the slide groove 3 231, so that when the first connecting frame 200 and the second connecting frame 300 move to both sides of the tunnel 10, the slide rod 1 312 continues to cooperate with the connecting pipe 230 to support the cylinder 220.

[0036] A cross plate 240 is installed at the lower left end of the first column 210, and a roller 241 is installed at the lower end of the cross plate 240. The arrangement of the roller 241 and the roller 1 212 facilitates the first connecting frame 200 and the second connecting frame 300 to move on the upper end of the bottom plate 100. A second column 250 is fixedly installed at the upper left end of the cross plate 240, and an operating platform 260 is fixedly installed on the left side of the second column 250. The operating platform 260 adopts 16 I-beams, and a guardrail 261 for protecting the staff is fixedly installed on the left side of the operating platform 260. When the first connecting frame 200 moves to the left side of the tunnel 10, the operating platform 260 is simultaneously driven to move to the left side of the tunnel 10 to facilitate the staff to operate.

[0037] The second connecting frame 300 includes a third column 310, and a slide groove 4 311 for limiting the third connecting frame 400 on the right side is opened at the upper end of the third column 310, and a slide rod 2 431 at the lower end of the third connecting frame 400 on the right side is extended and retracted in the groove cavity of the slide groove 4 311, and a slide rod 1 312 for limiting the first connecting frame 200 is fixedly installed on the left end of the third column 310, and the slide rod 1 312 slides in the groove cavity of the slide groove 3 231, and an operating platform is synchronously installed on the right side of the second connecting frame 300 to facilitate the work of the staff.

[0038] The third connecting frame 400 is installed on the upper ends of the first connecting frame 200 and the second connecting frame 300, and two third connecting frames 400 are provided, distributed on the left and right sides of the support vehicle body 001, and one is located at the upper end of the first connecting frame 200, and the other is located at the upper end of the second connecting frame 300. The first connecting frame 200 cooperates with the second connecting frame 300 to support and limit the third connecting frame 400.

[0039] The third connecting frame 400 includes an operating platform 2 410, which is made of 18-inch I-beam steel. The lower end of the operating platform 2 410 is installed with a fourth column 411 for supporting the operating platform 3 420. The third connecting frame 400 includes an operating platform 3 420, which is made of 16-inch I-beam steel, and the operating platform 3 420 is fixedly installed on one side of the fourth column 411. A guardrail 2 421 for protecting the staff is fixedly installed on one side of the operating platform 3 420. The third connecting frame 400 includes a support block 430, and a cross bar 432 for cooperating with the support block 430 to limit the operating platform 2 410 is fixedly installed on the side of the support block 430 facing the fourth column 411. The lower end of the support block 430 is fixedly installed with a slide bar 2 431 for sliding in the groove cavity of the slide slot 211 and the slide slot 4 311.

[0040] When it is necessary to adjust the support vehicle body 001 according to the width and height of the tunnel 10, the support vehicle body 001 can be moved to the middle of the tunnel 10 first, and the first connecting frame 200 can be pushed to the left side of the tunnel 10 so that the first connecting frame 200 is close to the left side of the tunnel 10, so that the operating platform 1 260 is close to the side wall of the tunnel 10, which is convenient for the staff to operate, and the second connecting frame 300 can be simultaneously approached to the right side of the tunnel 10. When the first connecting frame 200 and the second connecting frame 300 are moved, the two third connecting frames 400 are moved synchronously, and the left third connecting frame 400 follows the first connecting frame 200 to move to the left, and the right third connecting frame 400 follows the second connecting frame 300 to move to the right, so that the operating platform 3 420 is close to the side wall of the tunnel 10. When the height of the tunnel 10 is high, the cylinder 220 is started so that the connecting frame 221 pushes the third connecting frame 400 upward to make the third connecting frame 400 close to the top of the tunnel 10.

[0041] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the utility model. In addition, any non-creative modifications made to the utility model by those skilled in the art without making creative work still fall within the scope of protection of the utility model.

Claims

1. A tunnel excavation support trolley, comprising a support trolley body (001) working inside a tunnel (10), characterized in that: The support vehicle body (001) comprises a movable bottom plate (100), a first connecting frame (200) and a second connecting frame (300) are installed on the upper end of the bottom plate (100), and the first connecting frame (200) and the second connecting frame (300) can move left and right on the upper end of the bottom plate (100); A third connecting frame (400) is installed at the upper ends of the first connecting frame (200) and the second connecting frame (300), and two third connecting frames (400) are provided, which are distributed on the left and right sides of the support vehicle body (001), and the first connecting frame (200) cooperates with the second connecting frame (300) to support and limit the third connecting frame (400); The first connecting frame (200) comprises a first column (210), the upper end of the first column (210) is provided with a second slide groove (211) for limiting the position of the left third connecting frame (400), and the first connecting frame (200) comprises a cylinder (220) for controlling the third connecting frame (400) to move up and down; The second connecting frame (300) includes a third column (310), the upper end of which is provided with a sliding groove four (311) for limiting the third connecting frame (400) on the right side, and the left end of the third column (310) is provided with a sliding rod one (312) for limiting the first connecting frame (200).

2. The tunnel excavation support trolley according to claim 1, characterized in that: The bottom of the base plate (100) is equipped with wheels (110) for facilitating the movement of the support vehicle body (001), and connecting frames (111) for limiting the position of the wheels (110) are installed on both sides of the wheels (110).

3. The tunnel excavation support trolley according to claim 1, characterized in that: A support frame (120) for supporting the first connecting frame (200) and the second connecting frame (300) is installed at the upper end of the bottom plate (100), and a sliding groove (121) is provided in the middle of the support frame (120).

4. The tunnel excavation support trolley according to claim 1, characterized in that: A second connecting frame (221) for supporting two third connecting frames (400) is installed at the upper end of the cylinder (220), and a connecting pipe (230) for supporting the cylinder (220) is installed at the lower end of the cylinder (220). The connecting pipe (230) is installed on the right side of the first column (210), and a sliding groove (231) for cooperating with a sliding rod (312) to support the cylinder (220) is opened in the middle of the right side of the connecting pipe (230).

5. The tunnel excavation support trolley according to claim 1, characterized in that: A horizontal plate (240) is installed at the lower left end of the first column (210), a roller 2 (241) is installed at the lower end of the horizontal plate (240), a second column (250) is installed at the upper left end of the horizontal plate (240), an operating platform 1 (260) is installed on the left side of the second column (250), and a guardrail 1 (261) for protecting workers is installed on the left side of the operating platform 1 (260).

6. The tunnel excavation support trolley according to claim 1, characterized in that: The third connecting frame (400) includes an operating platform 2 (410), and the third connecting frame (400) includes an operating platform 3 (420). A guardrail 2 (421) is installed on one side of the operating platform 3 (420), and a fourth column (411) for supporting the operating platform 3 (420) is installed at the lower end of the operating platform 2 (410).

7. The tunnel excavation support trolley according to claim 6, characterized in that: The third connecting frame (400) includes a support block (430), one side of which is equipped with a cross bar (432) for cooperating with the support block (430) to limit the second operating platform (410), and the lower end of the support block (430) is equipped with a second slide bar (431) for sliding in the groove cavity of the second slide groove (211) and the fourth slide groove (311).

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