Concrete tiling device used for being connected with nozzle of wet spraying trolley

Abstract

The utility model discloses a concrete tiling device used for connecting a wet spraying trolley nozzle, which comprises the wet spraying trolley nozzle, a concrete spraying pipe is connected with a port of the nozzle, the left side and the right side of the concrete spraying pipe are respectively welded with one end of a supporting rod, and the other end of the supporting rod is connected with a scraper blade. The scraping plate is of an angle steel structure, and a concrete tiling scraper is arranged on the lower edge of the angle steel. According to the utility model, the flatness of the primary support of the tunnel can be effectively improved, so that the hanging quality of the waterproof plate is improved, and the potential safety hazard of operators during primary support construction is reduced.

Description

Technical Field

[0001] The utility model belongs to road construction equipment, in particular to a concrete paving device used for connecting a nozzle of a wet spraying trolley. Background Art

[0002] In the actual construction process, when laying the initial support shotcrete of the tunnel, due to the influence of many factors such as the shotcrete manipulator, concrete, shotcrete personnel and shotcrete time, the flatness of the initial support shotcrete surface is difficult to meet the specification requirements. The method is usually to use a shovel to scrape and trim manually, but the scraping and trimming range is limited by the operation during manual trimming, which can only meet the initial support scraping and trimming of the side wall. There is a safety hazard of the newly shotcrete falling off, and the scraping and trimming effect is not ideal. In particular, the flatness of tunnel shotcrete is more difficult to control, which is intuitively manifested as the uneven surface of the concrete and poor flatness. In addition, during the tunnel construction process, the shotcrete surface layer is a waterproof base layer with an uneven surface, which causes the laid waterproof board to be uneven, resulting in a void in the back and holes in the second lining casting, affecting the construction quality. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the above-mentioned prior art and to provide a concrete paving device for connecting a wet spraying trolley nozzle, which is easy to operate, low in cost, and recyclable, and in particular effectively improves the flatness of the initial support of the tunnel, thereby improving the quality of the hanging of the waterproof board and reducing the safety hazards of the operators during the initial support construction.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A concrete paving device for connecting a wet spraying trolley nozzle comprises a wet spraying trolley nozzle, a concrete spray pipe is connected to the nozzle port, the left and right sides of the concrete spray pipe are respectively welded to one end of a support rod, the other end of the support rod is connected to a scraper, the scraper is composed of an angle steel structure, and the lower edge of the angle steel is set as a concrete paving scraper.

[0006] The diameter of the concrete spraying pipe matches the outer diameter of the nozzle of the wet spraying trolley.

[0007] The end of the pipe opening of the concrete spray pipe is provided with a clamping device for fixing with the nozzle of the wet spraying trolley.

[0008] The length of the scraper is consistent with the width of the road surface to be constructed.

[0009] The support rod is made of Φ25mm threaded steel.

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

[0011] 1. This device can be directly connected to the nozzle of the wet spraying trolley, and they can be screwed together through the clamping device, which can effectively prevent falling off during construction. The setting of the scraper can directly scrape and spread the concrete sprayed at any time, which can effectively improve the flatness of the initial support of the tunnel, so that the waterproof board is closely attached to the initial support surface, preventing the formation of voids, and significantly improving the construction quality of the secondary lining.

[0012] 2. The use of this device can avoid the disadvantages of manual scraping in the prior art, especially the harm to the human body caused by concrete falling during manual scraping, thereby improving the safety of the initial support construction of the tunnel.

[0013] 3. The device is easy to manufacture, low in cost and can be recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a side structural schematic diagram of the utility model.

[0016] In the figure: 1-concrete spray pipe, 2-support rod, 3-scraper, 4-scraper, 5-fixing device DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0018] like Figure 1-2 As shown: a concrete paving device for connecting a wet spraying trolley nozzle, comprising a wet spraying trolley nozzle, the port of the nozzle is connected to a concrete spray pipe 1, the diameter of the concrete spray pipe 1 matches the outer diameter of the wet spraying trolley nozzle, that is, when the port of the nozzle is enlarged, the diameter of the nozzle 1 of the device is increased accordingly, otherwise it is reduced; the device is welded to one end of a support rod 2 on the left and right sides of the concrete spray pipe 1, respectively, the support rod 2 is made of Φ25mm threaded steel, the other end of the support rod 2 is connected to a scraper 3, the length of the scraper 3 can be set according to the width of the actual construction road surface, that is, when the construction road surface is relatively narrow, the length of the scraper becomes shorter, otherwise it is lengthened, the present embodiment is composed of a 70cm angle steel structure, and the lower edge of the angle steel is set as a concrete paving scraper 4.

[0019] In order to make the connection between the device and the trolley nozzle more firmly, the utility model also provides a clamping device 5 for fixing with the wet spraying trolley nozzle at the pipe end of the concrete spraying pipe 1 to prevent the spraying pipe 1 from falling off from the wet spraying trolley nozzle during construction.

[0020] The working process of this utility model is:

[0021] Install the device on the nozzle of the wet spraying trolley, adjust the scraper to align it with the newly sprayed concrete surface, scrape the protruding parts of the sprayed concrete surface from top to bottom, and then re-spray until the initial flatness of the concrete meets the design requirements.

[0022] In actual use, the utility model can change the material and length of the scraper and the support rod and the size of the connecting steel pipe according to the actual situation on site. The device is easy to manufacture, low in cost and can be recycled.

[0023] Although the utility model has been described above in conjunction with the drawings, the utility model is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely illustrative and not restrictive. Under the guidance of the utility model, ordinary technicians in this field can also make improvements and modifications without departing from the purpose of the utility model, all of which are within the protection of the utility model.

Claims

1. A concrete paving device for connecting a wet spraying trolley nozzle, comprising a wet spraying trolley nozzle, characterized in that: The port of the nozzle is connected to a concrete nozzle (1), the left and right sides of the concrete nozzle (1) are respectively welded to one end of a support rod (2), the other end of the support rod (2) is connected to a scraper (3), the scraper (3) is composed of an angle steel structure, and the lower edge of the angle steel is arranged as a concrete paving scraper (4).

2. A concrete paving device for connecting a nozzle of a wet spraying trolley according to claim 1, characterized in that: The diameter of the concrete spraying pipe (1) matches the outer diameter of the nozzle of the wet spraying trolley.

3. A concrete paving device for connecting a nozzle of a wet spraying trolley according to claim 1, characterized in that: The end of the pipe opening of the concrete spraying pipe (1) is provided with a clamping device (5) for fixing to the nozzle of the wet spraying trolley.

4. A concrete paving device for connecting a nozzle of a wet spraying trolley according to claim 1, characterized in that: The length of the scraper (3) matches the width of the road surface to be constructed.

5. A concrete paving device for connecting a nozzle of a wet spraying trolley according to claim 1, characterized in that: The support rod (2) is made of Φ25mm threaded steel.

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