Controllable concrete pump pipe sealing device

Abstract

The utility model discloses a controllable concrete pump pipe sealing device, and relates to the technical field of electrothermal furnaces. Comprising a connecting pipe, one end of the connecting pipe is connected with a pump pipe through a hoop, and the other end is provided with a closing plate; a first hinge lug and a second hinge lug are arranged on the side wall of the connecting pipe, and a drag hook is hinged to the second hinge lug; an L-shaped hinge lug and a lock catch are arranged on the side wall of the closing plate, the L-shaped hinge lug is hinged to the first hinge lug, and a through hole matched with the drag hook is formed in the lock catch; two fixing rings are further arranged on the side wall of the connecting pipe, and an elastic rope is arranged between the two fixing rings. The hinged position of the sealing plate and the connecting pipe is located on the side wall of the connecting pipe and cannot adhere to concrete, and manual cleaning is not needed; and after being opened, the sealing plate can be fixed to the side wall of the connecting pipe through the elastic rope and cannot be impacted by concrete, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heating furnaces, in particular to a controllable concrete pump pipe sealing device. Background Art

[0002] During the construction process, concrete pump trucks are usually used for concrete pouring. Concrete pump trucks are machines that use pressure to continuously transport concrete along the pump pipe. Since there is more than one pouring point, the pump needs to be stopped and replaced. During the process of replacing the pouring point, there is still a lot of concrete in the pump pipe. The concrete will fall during the movement of the pump pipe, causing waste and the fallen concrete needs to be cleaned up manually, which is a lot of work. Therefore, a sealing device needs to be installed at the end of the pump pipe.

[0003] Common closure devices include plug-in type (such as the Chinese patent with announcement number CN204804346U) and flap type (such as the Chinese patent with announcement number CN219623530U). The cutout of the plug-in type closure device will reduce the strength of the pipeline, and concrete is easily accumulated at the cutout, making it difficult to insert the circular steel plate after a period of use, and the accumulated concrete at the cutout needs to be cleaned in time. Although the flap type closure device can overcome the drawbacks of the cutout of the plug-in type closure device, the position of the closure plate is not fixed after it is opened. Under the impact of concrete, it will cause great pressure on the hinge of the closure plate, and even cause the closure plate to fall off. In addition, the hinge of the closure plate is located at the end of the pump pipe, which is also very easy to accumulate concrete and needs to be cleaned frequently. Utility Model Content

[0004] The main purpose of the utility model is to provide a controllable concrete pump pipe sealing device to solve the above problems.

[0005] To achieve the above-mentioned purpose, the utility model provides a controllable concrete pump pipe sealing device, including a connecting pipe, one end of which is connected to the pump pipe through a clamp, and the other end is provided with a sealing plate; a first hinged ear and a second hinged ear are provided on the side wall of the connecting pipe, and a draw hook is hinged on the second hinged ear; an L-shaped hinged ear and a lock buckle are provided on the side wall of the closing plate, the L-shaped hinged ear is hinged to the first hinged ear, and a through hole compatible with the draw hook is opened on the lock buckle; two fixing rings are also provided on the side wall of the connecting pipe, and an elastic rope is provided between the two fixing rings.

[0006] Furthermore, a torsion spring is arranged between the second hinged ear and the draw hook, and the bottom of the draw hook and the top of the lock buckle are both arranged as inclined surfaces.

[0007] Furthermore, a rubber sealing cone is provided on one side of the closing plate close to the connecting pipe.

[0008] Furthermore, the elastic rope may be a rubber band.

[0009] The utility model has the following beneficial effects:

[0010] The hinged part of the closing plate and the connecting pipe of the utility model is located on the side wall of the connecting pipe, which will not stick to concrete and does not need manual cleaning; and after the closing plate is opened, it will be fixed to the side wall of the connecting pipe by an elastic rope and will not be impacted by concrete, thereby improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the closed state of a controllable concrete pump pipe closing device proposed by the utility model;

[0012] Figure 2 This is a schematic diagram of an open state of a controllable concrete pump pipe sealing device proposed by the utility model.

[0013] In the figure: 1-connecting pipe; 2-closing plate; 3-elastic rope; 11-fixing ring; 12-second hinged ear; 13-drawing hook; 14-first hinged ear; 21-L-shaped hinged ear; 22-locking buckle; 23-through hole; 24-rubber sealing cone. DETAILED DESCRIPTION

[0014] In order to achieve the above-mentioned purpose and effect, the technical means and structure adopted by the utility model are described in detail with reference to the accompanying drawings for the preferred embodiments of the utility model and their features and functions.

[0015] like Figure 1-2 As shown, the utility model provides a controllable concrete pump pipe sealing device, including a connecting pipe 1, one end of which is connected to the pump pipe through a clamp, and the other end is provided with a closing plate 2; a first hinged ear 14 and a second hinged ear 12 are provided on the side wall of the connecting pipe 1, and a draw hook 13 is hinged on the second hinged ear 12; an L-shaped hinged ear 21 and a lock buckle 22 are provided on the side wall of the closing plate 2, the L-shaped hinged ear 21 is hinged to the first hinged ear 14, and a through hole 23 compatible with the draw hook 13 is opened on the lock buckle 22; two fixing rings 11 are also provided on the side wall of the connecting pipe 1, and an elastic rope 3 is provided between the two fixing rings 11.

[0016] When it is necessary to open, the hook 13 is rotated around the second hinged ear 12 to disengage the hook 13 from the through hole 23 of the lock buckle 22. Then, the closing plate 2 is rotated around the first hinged ear 14 to fit the closing plate 2 with the side wall of the connecting pipe 1. Finally, the elastic cord 3 is pulled to bypass the lock buckle 22 and abut against the connection between the lock buckle 22 and the closing plate 2 to complete the opening state (see FIG. Figure 2 );

[0017] When closing is required, the elastic cord 3 is pulled to make the elastic cord 3 bypass the lock buckle 22, and the elastic cord 3 is again fitted with the side wall of the connecting tube 1. Then, the closing plate 2 is rotated around the first hinge ear 14, and the draw hook 13 is rotated around the second hinge ear 12 to open. When the closing plate 2 is fitted with the bottom of the connecting tube 1, the draw hook 13 is inserted into the through hole 23 of the lock buckle 22 to complete the closed state (see Figure 1 ).

[0018] In another embodiment, a torsion spring is provided between the second hinged ear 12 and the hook 13. The elastic force of the torsion spring causes the hook 13 to be closely attached to the side wall of the connecting tube 1. The bottom of the hook 13 and the top of the lock buckle 22 are both provided with inclined surfaces. When the hook 13 needs to be closed, it is no longer necessary to manually rotate the hook 13. The inclined surface at the top of the lock buckle 22 will squeeze the inclined surface at the bottom of the hook 13, forcing the hook 13 to automatically rotate and open. When the closing plate 2 fits the bottom of the connecting tube 1, the through hole 23 of the lock buckle 22 leaks out, and the hook 13 is automatically inserted into the through hole 23 under the elastic force of the torsion spring, completing the closed state.

[0019] In another embodiment, a rubber sealing cone 24 is provided on one side of the closing plate 2 close to the connecting pipe 1, so that the closing plate 2 and the bottom of the connecting pipe 1 fit more closely to prevent concrete leakage.

[0020] In another embodiment, the elastic rope 3 can be an elastic component such as a rubber band or a tension spring.

[0021] The above description is only the preferred embodiment of the utility model, not all embodiments. Anyone should be aware that structural changes made under the inspiration of the utility model, and all technical solutions that are the same or similar to the utility model, belong to the protection scope of the utility model.

Claims

1. A controllable concrete pump pipe sealing device, comprising a connecting pipe, one end of which is connected to the pump pipe through a clamp, and the other end of which is provided with a sealing plate; characterized in that: The side wall of the connecting tube is provided with a first hinged ear and a second hinged ear, and a draw hook is hinged on the second hinged ear; the side wall of the closing plate is provided with an L-shaped hinged ear and a lock buckle, and the L-shaped hinged ear is hinged to the first hinged ear, and a through hole matched with the draw hook is opened on the lock buckle; the side wall of the connecting tube is also provided with two fixing rings, and an elastic rope is provided between the two fixing rings.

2. A controllable concrete pump pipe sealing device as claimed in claim 1, characterized in that: A torsion spring is arranged between the second hinged ear and the draw hook, and the bottom of the draw hook and the top of the lock buckle are both arranged as inclined surfaces.

3. A controllable concrete pump pipe sealing device as claimed in claim 1, characterized in that: A rubber sealing cone is arranged on one side of the closing plate close to the connecting pipe.

4. A controllable concrete pump pipe sealing device as claimed in claim 1, characterized in that: The elastic cord can be a rubber band.

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