Underground temporary door

Abstract

Supporting stand columns are installed on the left side and the right side in a roadway, the supporting stand columns are attached to the inner wall, an elastic sealing plate is used for sealing the contact face, the contact area and the attaching degree are effectively increased, a telescopic connecting rod is arranged in a connecting frame, and the connecting frame and the supporting stand columns are connected in a buckled mode through a connecting device, so that mounting and dismounting are convenient. A check block of a first connecting device on a supporting stand column is inserted into a linkage groove of a connecting shell to drive a semicircular shaft to rotate, the semicircular shaft is reset through spring tension, and the two devices are obliquely connected. During dismantling, an unlocking wrench is adjusted to enable the semicircular shaft to rotate to the horizontal position, the connecting frame and the supporting stand column are dismantled, a fan-shaped dust catching door is installed at the top end, and the fan-shaped dust catching door is attached to the top end of a roadway; the supporting stand columns are mounted on the ground through the conical embedded parts, mounting and dismounting are simplified, the stability of the device is improved through the inclined reinforcing ribs, punching mounting is avoided, the inner wall of the roadway is protected against damage, it is ensured that the wall structure is stable, and the wall is prevented from collapsing after dismounting.

Description

Technical Field

[0001] The utility model relates to the field of underground temporary doors, in particular to an underground temporary door. Background Art

[0002] In underground operations, there are potential safety hazards due to factors such as geological structure, tunnel structure and mechanical equipment. In order to protect the safety of workers, temporary doors are used as a protective barrier to prevent dangerous objects from entering the work area. In addition, temporary doors can also be used to control the underground environment, such as preventing dust, odor and water flow from one area to another, thereby keeping the working environment clean and comfortable. However, installing doors by drilling holes in underground walls will have an adverse effect on the structural strength of the walls. Such drilling behavior will destroy the stability and integrity of the underground walls, leading to safety hazards, such as cracks in the walls or even collapse, which significantly increases the risk at the work site. In addition, the diameter of the tunnel varies depending on the situation, and it is impossible to meet the temporary protection conditions of tunnels of different diameters. Utility Model Content

[0003] The utility model aims to provide a temporary door for an underground mine, so as to solve the problem that drilling holes in the underground wall to install the door will have a negative impact on the structural strength of the wall. Drilling holes will destroy the stability and integrity of the underground wall, thus leading to potential safety hazards, such as cracks or even collapse of the wall.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a temporary underground door, installed in an underground tunnel, comprising a supporting column, a connecting frame, and a connecting device, wherein the supporting columns are respectively connected to the left and right sides of the underground tunnel and fit with the inner wall of the tunnel, the bottom ends of the supporting columns are connected with conical embedded parts, the conical embedded parts are connected to the ground of the underground tunnel and are fastened by nuts, the top and bottom ends of the opposite end faces of the two supporting columns are respectively fixedly connected with a shell, a first connecting device is arranged in the shell, the first connecting device is buckled with a second connecting device fixedly connected to one end of the connecting frame, a telescopic rod is inserted in the connecting frame, the telescopic rod is slidably matched with the connecting frame, and the other end of the telescopic rod is connected to another supporting column through the second connecting device,

[0005] The connecting device includes a connecting shell, a block, a semicircular shaft, a reset spring, and an unlocking wrench. The connecting shell is an L-shaped hollow shell. The top end of the lateral end of the connecting shell is fixedly connected to a block, the lateral end is hinged with a semicircular shaft, the semicircular shaft is connected to an unlocking wrench, the unlocking wrench is slidably fitted in a connecting groove opened on the lateral end, the unlocking wrench is connected to a reset spring, the other end of the reset spring is fixedly connected to a linkage groove opened at the vertical end, and is used to reset the semicircular shaft. The block of the first connecting device is inserted into the linkage groove of the second connecting device.

[0006] Preferably, an elastic sealing plate is filled between the support column and the inner wall of the tunnel to tightly fit the support column and the inner wall of the tunnel.

[0007] Preferably, it also includes a fan-shaped dust collecting door, which is fixedly connected to the top ends of the two supporting columns and fastened by bolts.

[0008] Preferably, the outer circumference of the fan-shaped dust collecting door conflicts with the top of the tunnel.

[0009] Preferably, it also includes reinforcing ribs, which are obliquely connected to the front and rear ends of the supporting column, and the other end is connected to the ground of the underground tunnel by bolts.

[0010] Preferably, a plurality of limiting holes are evenly formed on the connection frame, a limiting block matching the limiting holes is connected to the telescopic rod for limiting and fixing the telescopic rod, and a spring is connected between the limiting block and the telescopic rod for pressing the limiting block downward to slide the telescopic rod.

[0011] Preferably, a door is further included, which is connected to the two supporting columns respectively through hinge leaves, and the upper and lower ends of the door are in contact with the corresponding end faces of the connecting frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device adopts a method of installing supporting columns on the left and right sides of the tunnel and fitting the inner wall of the tunnel. At the same time, an elastic sealing plate is used to seal the contact surface of the inner wall, which effectively increases the contact area and fit. In order to adapt to the temporary door support conditions in different tunnels, a retractable connecting rod is provided in the connecting frame. The connecting frame and the supporting columns are buckled through a connecting device to facilitate the installation and removal of the device. In addition, a fan-shaped dust-catching door is installed on the top, which fits the top of the tunnel to play a protective role and prevent dust from entering the tunnel. The supporting columns are installed on the ground of the tunnel through conical embedded parts, which is convenient for installation and removal. The oblique reinforcement ribs further improve the overall stability of the device, which is in close contact with the ground, avoiding drilling and installation on the inner wall of the tunnel, thereby avoiding damage to the wall in the tunnel. At the same time, it also ensures the stability of the structure of the wall in the tunnel, preventing the expansion of the hole and causing the wall to collapse after the temporary door is removed. The device has the advantages of convenient installation and removal, good protection effect, and stable wall structure, and avoids damage to the inner wall of the tunnel, providing a reliable temporary door support solution for tunnel operations. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 This is a schematic diagram of the structure of the connection devices of the utility model cooperating with each other.

[0016] In the figure: 1. Support column; 2. Shell; 3. Connection frame; 4. Telescopic rod; 5. Fan-shaped dust-catching door; 6. Reinforcing ribs; 7. Connecting device; 701. Connecting shell; 702. Stopper; 703. Semicircular shaft; 704. Return spring; 8. Door. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1: Please refer to Figure 1-2The utility model provides an embodiment: a temporary underground door, installed in an underground tunnel, including a support column 1, a connecting frame 3, and a connecting device 7. The support column 1 is respectively connected to the left and right sides of the underground tunnel and fits the inner wall of the tunnel. The bottom end of the support column 1 is connected with a conical embedded part, and the conical embedded part is connected to the ground of the underground tunnel. The support column 1 supports the entire structure, is installed on the left and right sides of the tunnel and fits the inner wall, and is connected to the ground of the underground tunnel through the conical embedded part, providing stable support, avoiding drilling on the inner wall of the underground tunnel, thereby avoiding damage to the wall in the tunnel. At the same time, it also ensures the structural stability of the wall in the tunnel to prevent the wall from collapsing due to the expansion of the hole after the temporary door is removed, and is fastened by nuts. The top and bottom ends of the opposite end faces between the two supporting columns 1 are symmetrically fixedly connected with the outer shell 2, and a first connecting device is provided in the outer shell 2. The first connecting device is connected to the second connecting device respectively to form an integral frame with the supporting column 1, providing a frame for the temporary door, and facilitating installation and disassembly. During installation, the first connecting device is installed on the supporting column 1 by positioning bolts, and then the connecting frame 3 can be installed. The connecting device 7 can be installed at different heights according to actual use. The first connecting device is provided in the outer shell 2. The first connecting device The connecting device is buckled with a second connecting device fixedly connected to one end of the connecting frame 3, a telescopic rod 4 is inserted in the connecting frame 3, the telescopic rod 4 is slidably matched with the connecting frame 3, a number of limiting holes are evenly opened on the connecting frame 3, and a limiting block matching the limiting hole is connected to the telescopic rod 4 to limit and fix the telescopic rod 4. When facing different lane widths, the telescopic rod 4 in the connecting frame 3 is slid, and the limiting block matches the limiting hole through the elastic force of the spring to limit the position of the telescopic rod 4 to meet the width of different lanes. A spring is connected between the limiting block and the telescopic rod 4 to press the limiting block down to slide the telescopic rod 4. The other end of the telescopic rod 4 is connected to another supporting column 1 through the second connecting device.

[0022] The connecting device 7 includes a connecting shell 701, a stopper 702, a semicircular shaft 703, a reset spring 704, and an unlocking wrench. The connecting shell 701 is an L-shaped hollow shell. The top end of the lateral end of the connecting shell 701 is fixedly connected to a stopper 702. The lateral end is hinged with a semicircular shaft 703. The semicircular shaft 703 is connected to an unlocking wrench. The unlocking wrench is slidably matched with a connecting groove provided on the lateral end. The unlocking wrench is connected to a reset spring 704. The other end of the reset spring 704 is fixedly connected to a linkage groove provided on the vertical end for locking the unlocking wrench. The semicircular shaft 703 is reset, and the stopper 702 of the first connecting device is inserted into the linkage groove of the second connecting device. The initial position of the semicircular shaft 703 is oblique installation. When in use, the stopper 702 of the first connecting device on the supporting column 1 is inserted into the linkage groove of the vertical end of the connecting shell 701, and the stopper 702 drives the semicircular shaft 703 to rotate. Then, after the stopper 702 enters the linkage groove, the semicircular shafts 703 of the two connecting devices 7 are reset by the tension of the spring, and are obliquely set in the gap to connect the two devices. During dismantling, adjust the unlocking wrench, which drives the semicircular shaft 703 to rotate to a horizontal position, unlock the device, remove the connecting frame 3 and the supporting column 1, and fill the space between the supporting column 1 and the inner wall of the tunnel with an elastic sealing plate for tightly fitting the supporting column 1 and the inner wall of the tunnel to keep the tunnel environment clean and safe. It also includes a fan-shaped dust-catching door 5, which is fixedly connected to the top of the two supporting columns 1 and fastened with bolts. The fan-shaped dust-catching door 5 is The side circumference is in conflict with the top of the tunnel, and also includes a reinforcing rib 6, which is obliquely connected to the front and rear ends of the supporting column 1, and the other end is connected to the ground of the underground tunnel by bolts. It is obliquely connected to the front and rear ends of the supporting column 1, and is connected to the ground of the underground tunnel by bolts, which is used to increase the stability and bearing capacity of the supporting structure, and ensure the reliability of the supporting column 1 under complex geological conditions or harsh tunnel environment. It also includes a door 8, which is respectively connected to the two supporting columns 1 through hinges, and the upper and lower ends of the door 8 are in contact with the corresponding end faces of the connecting frame 3.

[0023] The above is only an embodiment of the utility model, and the common sense such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A temporary underground door installed in an underground tunnel, characterized in that: The invention comprises a support column (1), a connection frame (3), and a connection device (7), wherein the support columns (1) are respectively connected to the left and right sides of an underground tunnel and fit with the inner wall of the tunnel, the bottom end of the support column (1) is connected to a conical embedded part, the conical embedded part is connected to the ground of the underground tunnel and is fastened by a nut, the top and bottom ends of the two support columns (1) which are symmetrical on the opposite end faces are respectively fixedly connected to a housing (2), a first connection device is arranged in the housing (2), the first connection device is buckled with a second connection device fixedly connected to one end of the connection frame (3), a telescopic rod (4) is inserted in the connection frame (3), the telescopic rod (4) is slidably matched with the connection frame (3), and the other end of the telescopic rod (4) is connected to another support column (1) through the second connection device, The connecting device (7) comprises a connecting shell (701), a stopper (702), a semicircular shaft (703), a reset spring (704), and an unlocking wrench. The connecting shell (701) is an L-shaped hollow shell. The top end of the lateral end of the connecting shell (701) is fixedly connected to the stopper (702). The lateral end is hinged with a semicircular shaft (703). The semicircular shaft (703) is connected to an unlocking wrench. The unlocking wrench is slidably matched in a connecting groove provided in the lateral end. The unlocking wrench is connected to a reset spring (704). The other end of the reset spring (704) is fixedly connected to a linkage groove provided in a vertical end for resetting the semicircular shaft (703). The stopper (702) of the first connecting device is plugged into the linkage groove of the second connecting device.

2. The underground temporary door according to claim 1, characterized in that: An elastic sealing plate is filled between the support column (1) and the inner wall of the tunnel, so as to tightly fit the support column (1) and the inner wall of the tunnel.

3. The underground temporary door according to claim 2, characterized in that: It also includes a fan-shaped dust collecting door (5) which is fixedly connected to the top ends of the two supporting columns (1) and fastened by bolts.

4. The underground temporary door according to claim 3 is characterized in that: The outer circumference of the fan-shaped dust collecting door (5) abuts against the top of the tunnel.

5. The underground temporary door according to claim 1, characterized in that: It also includes a reinforcing rib (6) which is obliquely connected to the front and rear ends of the supporting column (1), and the other end is connected to the ground of the underground tunnel by bolts.

6. The underground temporary door according to claim 1, characterized in that: The connection frame (3) is evenly provided with a plurality of limiting holes, the telescopic rod (4) is connected with a limiting block matched with the limiting holes and used for limiting and fixing the telescopic rod (4), and a spring is connected between the limiting block and the telescopic rod (4) and used for pressing the limiting block downward to slide the telescopic rod (4).

7. The underground temporary door according to claim 1, characterized in that: It also includes a door (8) which is connected to the two supporting columns (1) via hinges, and the upper and lower ends of the door (8) are in contact with corresponding end surfaces of the connecting frame (3).

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