Release agent spraying device for tunnel steel mould trolley

Abstract

The utility model discloses a tunnel steel mould trolley release agent spraying device which comprises a U-shaped main guide pipe which is arranged on a tunnel pre-pouring low wall and provided with a downward opening, the U-shaped main guide pipe is bound on a tunnel wall reinforcing steel bar, and the shape of the U-shaped main guide pipe is matched with that of the inner wall of a tunnel. A plurality of branch pipes facing the interior of the tunnel are arranged on the U-shaped main guide pipe, and nozzles are arranged at the tail ends of the branch pipes; one end of the U-shaped main conduit is connected to a release agent box through a water pump, and the other end is guided to a release agent recycling bin through a pressure regulating valve; the U-shaped collecting groove is formed in the bottom of a supporting rod on the outermost side of the movable steel mould trolley, the two ends of the U-shaped collecting groove are blocked, and the U-shaped collecting groove is detachably connected with the steel mould trolley. According to the device, the release agent can be effectively ensured to be uniformly sprayed on the outer wall of the steel mould trolley through the nozzles at the tail ends of the U-shaped main guide pipe and the branch pipes, and meanwhile, the release agent can be prevented from being sprayed on lining steel bars due to angle deflection during manual spraying.

Description

Technical Field

[0001] The utility model relates to the field of tunnel lining construction, in particular to a tunnel steel mold trolley release agent spraying device. Background Art

[0002] Lining steel formwork trolley is a special equipment that must be used in the secondary lining of the tunnel construction process. It is used for the concrete lining construction of the inner wall of the tunnel. Concrete lining trolley is an indispensable non-standard product for the secondary lining of the tunnel construction process. It mainly includes simple lining trolley, full hydraulic automatic walking lining trolley and grid lining trolley. Full hydraulic lining trolley can be divided into side top arch type, full round needle beam type, bottom mold needle beam type, full round walking type, etc. Lifting slipform, jacking slipform and flip mold are also commonly used in hydraulic tunnel and bridge construction.

[0003] During tunnel lining construction, in order to ensure the appearance quality of concrete pouring, it is often necessary to apply a release agent on the lining steel formwork trolley. Generally, the release agent application process is carried out by manual spraying or smearing. Due to factors such as the narrow working space, there are problems such as low brushing efficiency and poor quality. If you are not careful, the release agent will be sprayed on the steel bars, resulting in problems such as steel bar development and rust, affecting the quality of reinforced concrete pouring.

[0004] Therefore, a tunnel steel mold trolley release agent spraying device is proposed to solve the above technical problems. Utility Model Content

[0005] The technical problem solved by the utility model is that when applying the release agent to the existing steel mold trolley, it is usually done by manual spraying or smearing, which is easily affected by the narrow space and leads to low painting efficiency and poor painting quality. In addition, the release agent is sprayed on the steel bars, causing the steel bars to develop and rust, thereby affecting the quality of concrete pouring.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a tunnel steel mold trolley release agent spraying device, comprising a U-shaped main conduit with an opening downward arranged on the tunnel first cast low wall, the U-shaped main conduit is tied to the tunnel wall steel bar, and the U-shaped main conduit matches the shape of the tunnel inner wall; the U-shaped main conduit is provided with a plurality of branch pipes facing the inside of the tunnel, and the ends of the branch pipes are provided with nozzles; one end of the U-shaped main conduit is connected to the release agent box through a water pump, and the other end is guided to the release agent recovery bucket through a pressure regulating valve;

[0007] It also includes a U-shaped collecting trough arranged at the bottom of the outermost support rod of the movable steel mold trolley, the two ends of the U-shaped collecting trough are blocked, and the U-shaped collecting trough is detachably connected to the steel mold trolley.

[0008] In particular, one side wall of the U-shaped collecting trough is higher than the other side wall, and a plurality of horizontally arranged transverse through holes are provided on the higher side wall. The U-shaped collecting trough is fixed to the bottom of the outermost support rod of the steel mold trolley close to the central axis of the tunnel by connecting bolts.

[0009] Particularly, the U-shaped collecting tank is V-shaped, and a drainage hole and a drainage valve are provided on the lower surface at the lowest point.

[0010] Particularly, the release agent box is further provided with a liquid level sensor, and the liquid level sensor is electrically connected to the sound and light alarm.

[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects: the utility model device can effectively ensure that the mold release agent is evenly sprayed on the outer wall of the steel mold trolley through the nozzle at the end of the U-shaped main pipe and the branch pipe, and can also prevent the mold release agent from being sprayed on the lining steel bars due to angle deviation during manual spraying. At the same time, the U-shaped collection trough can also recycle excess mold release agent, effectively preventing waste caused by mold release agent dripping and construction environment pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a schematic diagram of the structure of a U-shaped collecting tank.

[0014] The meanings of the numbers in the figure are: U-shaped main pipe—1; steel mold trolley—2; branch pipe—3; nozzle—4; release agent box—5; water pump—6; pressure regulating valve—7; release agent recovery barrel—8; U-shaped collecting tank—9; drainage hole—10. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings in the embodiments of the utility model, so as to have a further understanding of the concept of the utility model, the technical problems solved, the technical features constituting the technical solutions and the technical effects brought about.

[0016] like Figure 1 As shown, a tunnel steel mold trolley release agent spraying device comprises a U-shaped main conduit 1 with an opening downward and arranged on a tunnel first cast low wall, the U-shaped main conduit 1 is tied to the lining steel bars of the tunnel wall, and the U-shaped main conduit 1 matches the shape of the inner wall of the tunnel; the U-shaped main conduit 1 is provided with a plurality of branch pipes 3 facing the inside of the tunnel, and the ends of the branch pipes 3 are provided with a nozzle 4; one end of the U-shaped main conduit 1 is connected to a release agent box 5 through a water pump 6, and the other end is guided to a release agent recovery barrel 8 through a pressure regulating valve 7;

[0017] It also includes a U-shaped collecting trough 9 arranged at the bottom of the outermost support rod of the movable steel mold trolley 2, the two ends of the U-shaped collecting trough 9 are blocked, and the U-shaped collecting trough 9 is detachably connected to the steel mold trolley 2.

[0018] In actual use, first tie the U-shaped main conduit 1 to the already tied lining steel bars in the tunnel wall to fix the U-shaped main conduit 1, and then start the steel mold trolley 2. When the steel mold trolley 2 passes through the U-shaped main conduit 1 along the axial direction of the tunnel, start the water pump 6. The water pump 6 delivers the release agent in the release agent box 5 into the nozzle 4 through the branch pipe 3 and sprays it onto the steel mold trolley 2 for release agent spraying, so that the outer surface of the steel mold trolley 2 can be fully coated with the release agent. When the release agent pumped in by the water pump 6 has a high pressure and causes the release agent to eject more violently, the pressure regulating valve 7 can be adjusted so that the excess release agent can enter the release agent recovery barrel 8 through the U-shaped main conduit 1, thereby effectively reducing the pressure in the U-shaped main conduit 1 and realizing the recycling of the excess release agent through the release agent recovery barrel 8. After the release agent is completely sprayed on the steel mold trolley 2, part of the release agent will flow downward under the action of gravity. At this time, the excess release agent can be recovered through the U-shaped collecting trough 9 to prevent the release agent from dripping onto the tunnel floor and polluting the construction environment. The release agent in the U-shaped collecting trough 9 can also be recovered after the release agent dripping process is over to avoid waste of release agent and effectively save construction costs.

[0019] As a preferred embodiment, the side wall of one side of the U-shaped collecting trough 9 is higher than the side wall of the other side, and a plurality of horizontally arranged transverse through holes are provided on the higher side wall. The U-shaped collecting trough 9 is fixed to the bottom of the outermost support rod of the steel mold trolley 2 close to the central axis of the tunnel by connecting bolts.

[0020] In this embodiment, a specific connection method between the U-shaped collecting trough 9 and the steel mold trolley 2 is provided. The connection between the U-shaped collecting trough 9 and the steel mold trolley 2 through the transverse through hole and the connecting bolt can ensure the connection strength and the stability of the U-shaped collecting trough 9 during the movement of the steel mold trolley 2. In addition, an L-shaped hanging rod can be provided at the bottom of the outermost support rod of the steel mold trolley 2 close to the central axis of the tunnel, and the horizontal part of the L-shaped hanging rod bears the overall weight of the U-shaped collecting trough 9 and the excess release agent, which can also achieve the same technical effect.

[0021] As a preferred embodiment, Figure 2 As shown, the U-shaped collecting tank 9 is V-shaped, and a drainage hole 10 and a drainage valve are provided on the lower surface at the lowest point.

[0022] In this embodiment, the U-shaped collecting groove 9 is high at both ends and low in the middle, which can facilitate the collection of excess release agent at a low point and facilitate recovery when the drain valve in the drain hole 10 is opened later.

[0023] As a preferred embodiment, the release agent box 5 is also provided with a liquid level sensor, and the liquid level sensor is electrically connected to the sound and light alarm.

[0024] In this embodiment, a liquid level sensor and an audible and visual alarm are arranged in the release agent box 5, so as to monitor the amount of release agent in the release agent box 5, thereby preventing the water pump from running idle after the release agent is used up, thereby affecting the release agent spraying effect.

[0025] The words “connection” and “fixation” appearing in the description of the present invention may refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0026] In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying a specific orientation that the device or element referred to must have, and therefore cannot be understood as a limitation on the present invention.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A tunnel steel mold trolley release agent spraying device, characterized in that: The invention comprises a U-shaped main conduit (1) with an opening downward and arranged on a low wall cast in advance in a tunnel, wherein the U-shaped main conduit (1) is tied to the lining steel bars of the tunnel wall, and the shape of the U-shaped main conduit (1) matches the shape of the inner wall of the tunnel; the U-shaped main conduit (1) is provided with a plurality of branch pipes (3) facing the interior of the tunnel, and the ends of the branch pipes (3) are provided with nozzles (4); one end of the U-shaped main conduit (1) is connected to a mold release agent box (5) via a water pump (6), and the other end is guided to a mold release agent recovery bucket (8) via a pressure regulating valve (7); It also includes a U-shaped collecting trough (9) arranged at the bottom of the outermost support rod of the movable steel mold trolley (2), the two ends of the U-shaped collecting trough (9) are blocked, and the U-shaped collecting trough (9) is detachably connected to the steel mold trolley (2).

2. A tunnel steel mold trolley release agent spraying device as claimed in claim 1, characterized in that: One side wall of the U-shaped collecting trough (9) is higher than the other side wall, and a plurality of horizontally arranged transverse through holes are provided on the higher side wall. The U-shaped collecting trough (9) is fixed to the bottom of the outermost support rod of the steel mold trolley (2) close to the central axis of the tunnel by connecting bolts.

3. A tunnel steel mold trolley release agent spraying device as claimed in claim 1, characterized in that: The U-shaped collecting trough (9) is V-shaped, and a drainage hole (10) and a drainage valve are provided on the lower surface at the lowest point.

4. A tunnel steel mold trolley release agent spraying device as claimed in claim 1, characterized in that: The release agent box (5) is also provided with a liquid level sensor, and the liquid level sensor is electrically connected to the sound and light alarm.

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