Supporting device for tunnel ventilation pipe

Abstract

The utility model relates to the technical field of tunnel engineering, in particular to a supporting device for a tunnel ventilation pipe. The device comprises a fixing device used for locking the ventilation pipe and a hanging device arranged on the fixing device. The suspension device comprises a supporting plate arranged on the fixing device, a left connecting column fixedly connected to the left end of the supporting plate, a right movable groove slidably connected to the right end of the supporting plate and a mounting plate fixedly connected with the upper end of the left connecting column and the upper end of the right movable groove, and a fixing bolt is arranged on the right movable groove in a penetrating mode. A mounting hole matched with the fixing bolt is formed in the right end of the supporting plate; the height of the mounting plates on the two sides can be adjusted according to the arc-shaped structure of the inner wall of the tunnel, the whole device does not need to be perpendicular to the inner wall of the tunnel, mounting is convenient, and the mounting plates are evenly and stably stressed; the device can be suitable for ventilation pipes of different models.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering, in particular to a supporting device for a tunnel ventilation pipe. Background Art

[0002] In the field of tunnel construction technology, it is usually necessary to supply fresh air to the inside of the tunnel under construction to remove harmful gases, steam, dust, blasting smoke and other harmful substances, and to make the temperature, relative humidity and flow rate of the air inside the tunnel reach the specified standards to meet the construction conditions, so it is necessary to use pipes.

[0003] The ventilation duct needs to be fixed before ventilation can be carried out. Due to the uncertainty of the tunnel construction environment, the installation position of the ventilation duct is not fixed. Since the inner wall of the tunnel is usually an arc-shaped structure, the existing tunnel support structure cannot be adjusted according to the inner wall of the tunnel. During installation, the entire tunnel support structure needs to be rotated, which is inconvenient to install.

[0004] Chinese patent CN201922086889.0 discloses "A tunnel ventilation pipe support device", publication number CN211287786U, the device includes a transverse beam, the left and right sides of the transverse beam are fixed with left and right symmetrical support columns, the lower ends of the two groups of support columns are bent inward, the tops of the two groups of support columns are fixed with mounting plates, the lower ends of the two groups of support columns are hinged with articulated arms, the lower ends of the articulated arms are hinged with telescopic adjustment components between the side walls of the support columns, the upper ends of the articulated arms are hinged with abutment blocks, and the two groups of abutment blocks are in an inverted figure eight shape. However, the device has some defects: the mounting plates of the device are symmetrically arranged, and the mounting plates need to be vertically attached to the inner wall of the tunnel during installation. The staff needs to make the entire tunnel support structure perpendicular to the inner wall of the tunnel, which is very inconvenient to install. If they are not attached to the inner wall of the tunnel, the mounting plates on both sides are unevenly stressed, which can easily loosen the mounting plates on the side with greater stress. Utility Model Content

[0005] In order to solve the problems of the above-mentioned prior art, the utility model provides a supporting device for tunnel ventilation ducts, which can adjust the height of the mounting plates on both sides according to the arc structure of the inner wall of the tunnel. There is no need to make the entire device perpendicular to the inner wall of the tunnel. The installation is convenient, and the mounting plates are evenly and stably stressed.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a supporting device for a tunnel ventilation duct, comprising a fixing device for locking the ventilation duct, and a hanging device arranged on the fixing device, wherein the hanging device comprises a supporting plate arranged on the fixing device, a left connecting column fixedly connected to the left end of the supporting plate, a right movable groove slidably connected to the right end of the supporting plate, and a mounting plate fixedly connected to the upper ends of the left connecting column and the right movable groove, a fixing bolt is passed through the right movable groove, and a mounting hole matching the fixing bolt is provided at the right end of the supporting plate.

[0007] By adopting the above-mentioned structural design, the height of the mounting plates on both sides can be adjusted according to the arc structure of the inner wall of the tunnel, and the right movable groove can be slid according to the curvature of the tunnel, so that the height of the left mounting plate and the height of the right mounting plate can adapt to the curvature of the tunnel, thereby making the device perpendicular to the ground, making installation more convenient, and the mounting plates on both sides are evenly stressed and remain stable.

[0008] Preferably, a pad is disposed above the mounting plate, and through holes are provided on the pad and the mounting plate.

[0009] By adopting the above structural design, the height of the mounting plate can be finely adjusted so that the mounting plate can fit the inner wall of the tunnel more closely.

[0010] Preferably, the fixing device includes a supporting frame fixedly connected to the support plate, a supporting inclined plate symmetrically fixedly connected to the inner side of the supporting frame, a pressure rod arranged above the supporting inclined plate, and a driving component for driving the pressure rod to move up and down, wherein the pressure rod is an arc-shaped rod, and the bending curvature of the pressure rod matches the ventilation pipe.

[0011] By adopting the above structural design, the ventilation pipe can be locked to prevent the ventilation pipe from moving under the action of external force.

[0012] Preferably, the driving assembly includes an articulated seat whose lower end is hinged to the pressure rod, a scissor rod hinged to the upper end of the articulated seat, a slider hinged to the scissor rod, and a bidirectional screw rod threaded through the inside of the slider, the scissor rods are symmetrically arranged and the ends are hinged to each other, the slider is slidably connected to the support plate, and the bidirectional screw rod is rotatably connected to the supporting frame.

[0013] The above structural design can be applied to ventilation pipes with different diameters within a certain limit.

[0014] Preferably, the articulated seat includes a first articulated block hinged to the pressure rod, a second articulated block hinged to the scissors rod, and a plug plate fixedly connected to the second articulated block, a slot matching the plug plate is provided on the first articulated block, and positioning holes are provided on the first articulated block and the plug plate.

[0015] By adopting the above structural design, the pressure rod can be replaced according to different types of ventilation pipes, so that the pressure rod matches the curvature of the ventilation pipe, and the ventilation pipe can be better locked.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1) The device can adjust the height of the mounting plates on both sides according to the arc structure of the inner wall of the tunnel. It is not necessary to make the entire device perpendicular to the inner wall of the tunnel. The installation is convenient, and the mounting plates are evenly and stably stressed.

[0018] 2) This device can be applied to ventilation pipes of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model from the front;

[0021] Figure 3 It is a structural schematic diagram of the fixing device of the utility model; DETAILED DESCRIPTION

[0022] See also Figure 1 , Figure 2 , Figure 3 The utility model provides a technical solution: a supporting device for a tunnel ventilation pipe, comprising a fixing device for locking the ventilation pipe, a hanging device arranged on the fixing device, the hanging device comprising a supporting plate 1 arranged on the fixing device, a left connecting column 11 fixedly connected to the left end of the supporting plate 1, a right movable groove 12 slidably connected to the right end of the supporting plate 1, and a mounting plate 13 fixedly connected to the upper ends of the left connecting column 11 and the right movable groove 12, a fixing bolt 14 is passed through the right movable groove 12, and a mounting hole matching the fixing bolt 14 is opened at the right end of the supporting plate 1.

[0023] A pad 15 is arranged above the mounting plate 13, and through holes are provided on the pad 15 and the mounting plate 13. When installing the device, the height difference between the right mounting plate and the left mounting plate is roughly calculated according to the curvature of the tunnel, and the right movable groove 12 is slid. During installation, the number of the right pad 15 is increased, so that the device can be vertical to the ground after installation. When the ventilation pipe is installed on the device, the mounting plates on both sides are evenly stressed, kept stable, and not easy to loosen.

[0024] The fixing device includes a supporting frame 2 fixedly connected to the support plate 1, a supporting inclined plate 21 symmetrically fixedly connected to the inner side of the supporting frame 2, a pressure rod 22 arranged above the supporting inclined plate 21, and a driving component for driving the pressure rod 22 to move up and down. The pressure rod 22 is an arc-shaped rod, and the bending curvature of the pressure rod 22 matches the ventilation pipe. The supporting frame 2 is a square frame.

[0025] In this embodiment, the right side frame of the supporting frame 2 matches the right movable groove 12, and the right side frame of the supporting frame 2 is slidably connected inside the right movable groove 12. A long sliding rod is fixedly connected to the right end of the support plate 1 and the right side frame of the supporting frame 2, and a sliding groove matching the long sliding rod is opened on the groove wall of the right movable groove 12 so that the right movable groove 12 can be movably connected to the supporting frame 2.

[0026] The driving assembly includes an articulated seat 3 whose lower end is hinged to the pressure rod 22, a scissor rod 41 hinged to the upper end of the articulated seat 3, a slider 42 hinged to the scissor rod 41, and a bidirectional screw rod 43 threadedly penetrated through the slider 42. The scissor rod 41 is symmetrically arranged and the ends are hinged to each other. The slider 42 is slidably connected to the support plate 1, and the bidirectional screw rod 43 is rotatably connected to the supporting frame 2.

[0027] Two scissor rods 41 are provided, the lower ends of the scissor rods 41 are hinged to each other, the left end of the bidirectional screw rod 43 passes through the supporting frame 2, and the left end of the bidirectional screw rod 43 is fixedly connected to a hand wheel so as to rotate the bidirectional screw rod 43.

[0028] The articulated seat 3 includes a first articulated block 31 articulated with the pressure rod 22, a second articulated block 32 articulated with the scissor rod 41, and a plug plate 33 fixedly connected to the second articulated block 32. The first articulated block 31 is provided with a slot matching the plug plate 33. The first articulated block 31 and the plug plate 33 are provided with positioning holes 34. Bolts are installed on the positioning holes 34 to fix the first articulated block 31 and the plug plate 33. According to the models of ventilation pipes commonly used in construction, pressure rods 22 matching these ventilation pipe models are made. When replacing the ventilation pipe, the staff removes the bolts on the positioning holes, removes the first articulated block, replaces the pressure rod 22 with the same model as the ventilation pipe, and then inserts the first articulated block 31 and the plug plate 33 accordingly, and then installs bolts to fix the first articulated block 31 and the plug plate 33.

[0029] When the device is in use, multiple devices are used together. The staff first roughly calculates the height difference between the right mounting plate and the left mounting plate according to the curvature of the tunnel, slides the right movable groove 12, and during installation, increases the number of right pads 15, and finely adjusts the height of the right movable groove 12, so that the device can be vertical to the ground after installation; then the staff installs the pressure rod 22 that matches the ventilation pipe model, inserts the first hinge block 31 and the plug plate 33 accordingly, and then installs the bolts to fix the first hinge block 31 and the plug plate 33. When the ventilation pipe is erected on the load-bearing inclined plate 21 on the device, the staff rotates the two-way screw rod 43, the sliders 42 approach each other, and the scissor rods 41 approach each other, so that the pressure rod 22 moves downward until the pressure rod 22 contacts the pipe wall of the ventilation pipe, and the installation is completed.

[0030] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0031] The present invention is described above with reference to the preferred embodiments, but the protection scope of the present invention is not limited thereto, and all technical solutions falling within the scope of the claims are within the protection scope of the present invention. Various improvements may be made to the present invention and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A supporting device for a tunnel ventilation pipe, comprising a fixing device for locking the ventilation pipe and a hanging device arranged on the fixing device, characterized in that: The suspension device comprises a support plate (1) arranged on a fixing device, a left connecting column (11) fixedly connected to the left end of the support plate (1), a right movable groove (12) slidably connected to the right end of the support plate (1), and a mounting plate (13) fixedly connected to the upper ends of the left connecting column (11) and the right movable groove (12), a fixing bolt (14) passing through the right movable groove (12), and a mounting hole matching the fixing bolt (14) is provided at the right end of the support plate (1).

2. A supporting device for a tunnel ventilation pipe according to claim 1, characterized in that: A pad (15) is arranged above the mounting plate (13), and through holes are provided on both the pad (15) and the mounting plate (13).

3. A supporting device for a tunnel ventilation pipe according to claim 1, characterized in that: The fixing device comprises a bearing frame (2) fixedly connected to the support plate (1), a bearing inclined plate (21) symmetrically fixedly connected to the inner side of the bearing frame (2), a pressure rod (22) arranged above the bearing inclined plate (21), and a driving component for driving the pressure rod (22) to move up and down, wherein the pressure rod (22) is an arc-shaped rod, and the curvature of the pressure rod (22) matches the ventilation pipe.

4. A supporting device for a tunnel ventilation pipe according to claim 3, characterized in that: The driving assembly comprises an articulated seat (3) whose lower end is hinged to a pressure rod (22), a scissor rod (41) hinged to the upper end of the articulated seat (3), a slider (42) hinged to the scissor rod (41), and a bidirectional screw rod (43) threadedly inserted into the slider (42), wherein the scissor rod (41) is symmetrically arranged and the ends are hinged to each other, the slider (42) is slidably connected to the support plate (1), and the bidirectional screw rod (43) is rotatably connected to the supporting frame (2).

5. A supporting device for a tunnel ventilation pipe according to claim 4, characterized in that: The hinge seat (3) comprises a first hinge block (31) hinged to the pressure rod (22), a second hinge block (32) hinged to the scissor rod (41), and a plug plate (33) fixedly connected to the second hinge block (32); a slot matching the plug plate (33) is provided on the first hinge block (31); and positioning holes (34) are provided on both the first hinge block (31) and the plug plate (33).

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