Explosion-proof roller shutter lifting device for open cut tunnel portal

Abstract

The utility model discloses an explosion-proof roller shutter lifting device for an open cut tunnel portal, which comprises a support seat, a roller shutter lifting device, a roller shutter lifting device and a roller shutter lifting device, and is characterized in that the support seat is mounted at the top of the open cut tunnel portal; the pulley is mounted at the top of the supporting seat through a mounting seat; one end of the traction rope is connected to the traction mechanism, the other end of the traction rope penetrates through a pulley groove of the pulley and is connected with one end of the anti-explosion roller shutter, and the anti-explosion roller shutter is vertically arranged in front of the opening of the open cut tunnel. The anti-explosion roller shutter lifting device has the advantages of being easy and convenient to operate, lifting of the anti-explosion roller shutter can be rapidly and conveniently adjusted, lifting work becomes more convenient, efficient and safe, powerful guarantee is provided for construction, the working efficiency is improved, and the construction process is more reliable.

Description

Technical Field

[0001] The utility model relates to the field of explosion-proof at tunnel openings, and more specifically, to an explosion-proof roller curtain lifting device for tunnel openings. Background Art

[0002] With the continuous and positive development of society, the popularity of oil pipelines is gradually increasing in an increasingly significant manner. When oil pipelines are in areas where they need to cross mountains in tunnels, they often involve roads and high-voltage lines. During the entire process of tunnel construction, since it is impossible to carry out open-air blasting operations, under such circumstances, it is necessary to conduct in-depth research and develop an explosion-proof roller shutter to reduce the hidden dangers of flying rocks at the tunnel entrance. Considering that the explosion-proof roller shutter needs to bear the huge impact force brought by flying rocks, the material of the roller shutter will inevitably appear extremely heavy. Therefore, a lifting device is urgently needed to assist in the operation, save materials, and achieve good results in saving manpower, and ensure the safety of operators and reduce the potential possibility of accidents. Utility Model Content

[0003] In order to achieve these purposes and other advantages according to the utility model, a preferred embodiment of the utility model provides an explosion-proof roller curtain lifting device for a tunnel open hole entrance, comprising:

[0004] A support seat, which is installed on the top of the tunnel opening;

[0005] A pulley, which is mounted on the top of the support seat through a mounting seat;

[0006] A traction rope, one end of which is connected to the traction mechanism, and the other end of which passes through the wheel groove of the pulley and is connected to one end of the explosion-proof rolling curtain, which is vertically arranged in front of the tunnel opening.

[0007] According to a preferred embodiment of the present invention, the support seat comprises:

[0008] Embedded steel plate, which is embedded in the concrete at the top of the tunnel opening;

[0009] The steel plate base is installed above the embedded steel plate through steel pipe legs. The embedded steel plate and the steel plate base are arranged in parallel, and the steel pipe legs are vertically connected between the embedded steel plate and the steel plate base.

[0010] According to a preferred embodiment of the utility model, the mounting seat includes two baffles and a pin shaft, the two baffles are vertically installed on the steel plate base, and the two are spaced a certain distance apart, the pulley is vertically installed between the two baffles through the pin shaft, and the pulley is a certain distance away from the steel plate base.

[0011] According to a preferred embodiment of the utility model, guide wheels are installed forwardly of the tunnel opening.

[0012] According to a preferred embodiment of the utility model, it also includes a plurality of steel foot supports, one end of which is connected to the steel plate base, and the other end is buried in the concrete at the top of the tunnel opening.

[0013] The utility model includes at least the following beneficial effects: the device is easy to operate, and can quickly and conveniently adjust the lifting and lowering of the explosion-proof roller shutter, making the lifting work more convenient, efficient and safe, providing strong guarantees for construction, improving work efficiency, and making the construction process more reliable.

[0014] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a side view of the explosion-proof roller curtain lifting device for the open tunnel entrance of the utility model.

[0016] Figure 2 It is a front view of the explosion-proof roller curtain lifting device for the open tunnel entrance of the utility model. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0018] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0019] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0020] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0021] like Figure 1-2 As shown, a preferred embodiment of the utility model provides an explosion-proof roller curtain lifting device for a tunnel open hole entrance, comprising:

[0022] Support base 1, which is installed on the top of the tunnel opening 2;

[0023] A pulley 3, which is mounted on the top of the support base 1 through a mounting base 4;

[0024] A traction rope 5 has one end connected to the traction mechanism, and the other end passes through the wheel groove of the pulley 3 and is connected to one end of the explosion-proof rolling curtain 6, which is vertically arranged in front of the tunnel opening.

[0025] In the above technical solution, the traction mechanism is used to drive the traction rope 5 to move forward and backward, so as to drive the explosion-proof roller shutter 6 to move up and down, and the explosion-proof roller shutter is used to block the huge impact force brought by flying stones. The device has the characteristics of easy operation, and can quickly and conveniently adjust the lifting and lowering of the explosion-proof roller shutter, making the lifting work more convenient, efficient and safe, providing strong protection for construction, improving work efficiency, and making the construction process more reliable.

[0026] Another preferred embodiment provides a specific structure of the support base, the support base 1 comprises:

[0027] Embedded steel plate 1-1, which is embedded in the concrete at the top of the tunnel opening;

[0028] The steel plate base 1-2 is installed above the embedded steel plate through the steel pipe legs 1-3. The embedded steel plate and the steel plate base are arranged in parallel, and the steel pipe legs are vertically connected between the embedded steel plate and the steel plate base.

[0029] In the above technical solution, the embedded steel plate itself is embedded in the concrete at the top of the tunnel open hole entrance, which has high stability and provides a good stabilization effect for the entire device.

[0030] Another preferred embodiment provides a specific structure of the mounting base, wherein the mounting base 4 includes two baffles 4-1 and a pin shaft 4-2, the two baffles 4-1 are vertically installed on the steel plate base, and are spaced a certain distance apart from each other, the pulley is vertically installed between the two baffles through the pin shaft, and the pulley 3 is a certain distance away from the steel plate base.

[0031] The pulley is fixed in the middle by two baffles, which has a good stabilizing effect and can ensure the normal traction and walking of the traction rope.

[0032] According to a preferred embodiment of the utility model, a guide wheel is installed forwardly of the tunnel opening, which is equivalent to playing a certain supporting role for the explosion-proof roller shutter.

[0033] According to a preferred embodiment of the utility model, it also includes a steel foot support 7, of which there are multiple ones, one end of the steel foot support 7 is connected to the steel plate base, and the other end is buried in the concrete at the top of the tunnel open hole entrance, so as to further improve the stability of the entire device.

[0034] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An explosion-proof roller curtain lifting device for a tunnel opening, characterized in that: include: A support seat, which is installed on the top of the tunnel opening; A pulley, which is mounted on the top of the support seat through a mounting seat; A traction rope, one end of which is connected to the traction mechanism, and the other end of which passes through the wheel groove of the pulley and is connected to one end of the explosion-proof rolling curtain, which is vertically arranged in front of the tunnel opening.

2. The explosion-proof roller curtain lifting device for tunnel opening according to claim 1 is characterized in that: The support base comprises: Embedded steel plate, which is embedded in the concrete at the top of the tunnel opening; The steel plate base is installed above the embedded steel plate through steel pipe legs. The embedded steel plate and the steel plate base are arranged in parallel, and the steel pipe legs are vertically connected between the embedded steel plate and the steel plate base.

3. The explosion-proof roller curtain lifting device for tunnel opening according to claim 2 is characterized in that: The mounting seat includes two baffles and a pin shaft. The two baffles are vertically mounted on the steel plate base and are spaced a certain distance apart. The pulley is vertically mounted between the two baffles through the pin shaft and is spaced a certain distance apart from the steel plate base.

4. The explosion-proof roller curtain lifting device for a tunnel opening according to claim 2 is characterized in that: A guide wheel is installed forwardly at the tunnel opening.

5. The explosion-proof roller curtain lifting device for tunnel opening according to claim 2 is characterized in that: It also includes a plurality of steel foot supports, one end of which is connected to the steel plate base, and the other end of which is buried in the concrete at the top of the tunnel open hole entrance.

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