Loess tunnel supporting device

Abstract

The invention belongs to the field of construction engineering auxiliary equipment, and particularly relates to a loess tunnel supporting device and method. Comprising a first supporting mechanism, and the first supporting mechanism comprises a supporting frame assembly and a supporting assembly arranged below the supporting frame assembly; the horizontal supporting mechanism is arranged at the bottom of the first supporting mechanism; the vertical adjusting mechanism is arranged at the lower part of the horizontal supporting mechanism; and the purification mechanism is arranged on the side wall of the horizontal supporting mechanism. According to the loess tunnel supporting device, the first supporting mechanism is integrally in an arc shape, the radian of the first supporting frame and the radian of the two arc-shaped second supporting frames are adjusted through the connecting rods, and therefore loess tunnels of different sizes can be supported; and the buffer plate can play a role in buffering when supporting the tunnel, and rigidity instability caused by overall compression of the structure is avoided. And the telescopic rods are arranged, so that the buffering and damping effects can be achieved when the tunnel is supported.

Description

Technical Field

[0001] The invention belongs to the field of construction engineering auxiliary equipment, and in particular relates to a loess tunnel supporting device. Background Art

[0002] Tunnel support is an engineering measure taken to ensure the stability and safety of the tunnel during construction. Loess tunnel is a type of tunnel that is constructed under loess geological conditions. It is difficult to support due to its unstable soil structure, easy loosening, sensitive to water content, and strong secondary mud. In the past tunnel support process, anchor spraying support was used to insert anchor rods and spray concrete into the top and side walls of the tunnel to form a support structure to withstand confining pressure. However, this method is very inefficient and is not suitable for loess tunnels with unstable soil structures. During the support process, the wall may fall off, leading to dangerous accidents. Some support devices are welded on-site with steel parts. This method requires the ability of welders, and the efficiency of on-site welding is very low. Moreover, the welded support device has been finalized and cannot meet the needs of various loess tunnels. Some support devices can be overlapped into one through various components, but the diameter of the tunnel they support is certain, the shock absorption effect is poor, and the side wall of the tunnel cannot be stably supported. Moreover, their height is also limited. At the same time, there are small particles such as dust and harmful gases in the loess tunnel, which is not good for the health of construction workers. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, the first aspect of the present application is to propose a loess tunnel support device, comprising: A first support mechanism, the first support mechanism comprising a support frame assembly and a support assembly disposed below the support frame assembly; A horizontal support mechanism, arranged at the bottom of the first support mechanism; A vertical adjustment mechanism, arranged at the lower part of the horizontal support mechanism; The purification mechanism is arranged on the side wall of the horizontal supporting mechanism.

[0005] Preferably, the support frame assembly includes an arc-shaped first support frame and two arc-shaped second support frames, a first connecting rod is slidably arranged between the side walls of the first support frame and the two second support frames, threaded holes are provided on the first support frame, the second support frame and the connecting rod, bolts are provided in the threaded holes, and nuts are provided at both ends of the bolts.

[0006] Preferably, a groove is provided on the upper surface of the first support frame and the second support frame, a buffer plate is provided in the groove, a sliding groove is provided on the side of the groove, a sliding block is provided on the side of the buffer plate, the sliding block is slidably provided in the sliding groove, a threaded hole is provided on the inner bottom surface of the groove, a buffer screw is provided in the threaded hole, the end of the buffer screw is rotatably connected to the buffer plate, a buffer spring is sleeved on the buffer screw, and a conical block is fixedly provided on the upper surface of the buffer plate.

[0007] Preferably, the support assembly includes a support block and a telescopic rod, the support block is fixedly arranged on the lower end surface of the first support frame, the lower end surface of the support block is fixedly connected with a C-shaped arc plate, the telescopic rod is a telescopic rod structure, an arc-shaped slide groove is opened on the C-shaped arc plate, an arc-shaped slider is slidably arranged in the arc-shaped slide groove, and the end of the telescopic rod is fixedly connected to the arc-shaped slider.

[0008] Preferably, the horizontal support mechanism includes a vertical support column, a dual-axis motor, a screw rod, a sleeve and a horizontal diagonal support plate. The support column is fixedly arranged on the lower end surface of the C-shaped arc plate. An installation cavity is opened in the support column. The dual-axis motor is fixedly arranged in the installation cavity. Both ends of the dual-axis motor are connected to the screw rod. A sleeve is arranged on the screw rod. The end of the sleeve is fixedly connected to the horizontal diagonal support plate. A reinforcing plate is fixedly arranged on the outer side surface of the horizontal diagonal support plate.

[0009] Preferably, the vertical adjustment mechanism includes a U-shaped box, a double-axis screw, a moving block, an oblique support rod and a base. The U-shaped box is fixedly arranged at the lower end of the support column, and a double-axis motor is arranged in the U-shaped box. Both ends of the double-axis motor are connected to the double-axis screw, and the moving block is arranged on the double-axis screw. The oblique support rod is hinged to the hinge on the double-axis screw, and the middle of the two oblique support rods is rotatably connected. A positioning block is fixedly arranged on the base, and the other end of the oblique support rod is hinged to the positioning block. A limiting hole is also provided on the base, and a limiting rod is slidably arranged in the limiting hole, and the limiting rod is fixedly arranged on the inner side of the U-shaped box.

[0010] Preferably, the purification component includes a dust box, a catalyst box and an exhaust fan, the dust box is fixedly installed on the left and right sides of the support column, and the rear side of the dust box is fixedly connected to the exhaust fan; the upper end of the dust box is fixedly connected to a rotating motor, the output shaft of the rotating motor is fixedly connected to a spiral rod, the spiral rod is outerly provided with a spiral tube, the lower end of the spiral tube is fixedly connected to a mounting sleeve, a spring is arranged in the mounting sleeve, and a brush is arranged in the mounting sleeve.

[0011] Compared with the prior art, the present invention has the following beneficial effects: (1) The first support mechanism in the loess tunnel support device of the present invention is in an arc shape as a whole. The curvature of the first support frame and the two arc-shaped second support frames can be adjusted by connecting rods, so that loess tunnels of different sizes can be supported. The buffer plate can play a buffering role when supporting the tunnel, avoiding rigid instability caused by the overall compression of the structure. The telescopic rod can also play a buffering and shock-absorbing role when supporting the tunnel. (2) The horizontal support assembly of the present invention drives the horizontal diagonal support plate to move toward the tunnel side wall through a dual-axis motor, thereby abutting against the tunnel side wall to achieve the function of supporting the loess tunnel side wall; (3) The vertical adjustment mechanism of the present invention can increase the height of the entire loess tunnel support device, and the setting of the dual-axis motor in the vertical adjustment mechanism can automatically control the support height; (4) The purification component of the present invention is provided to absorb and remove dust and harmful gases in the air during the support process of the support device, thereby ensuring the safety of construction workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them, Figure 1 It is a structural schematic diagram of the loess tunnel supporting device of the present invention; Figure 2 A schematic diagram of the connection structure between the first supporting frame and the second supporting frame; Figure 3 is a structural schematic diagram of a telescopic rod; Figure 4 It is a structural schematic diagram of the horizontal support mechanism; Figure 5 It is the structural diagram of the screw rod; Figure 6 It is a structural schematic diagram of the vertical adjustment mechanism; Figure 7 It is a schematic diagram of the structure of the purification component; Figure 8 is a cross-sectional view of a purification component; Fig. 9 It is a schematic diagram of the structure of the brush; Fig.10 This is a schematic diagram of the structure of the buffer plate of Example 2; Fig.11 This is a cross-sectional view of the buffer plate of Example 2.

[0013] in, Figures 1 to 11 The corresponding relationship between the reference numerals and the component names is as follows: In the figure: 1. First support mechanism, 11. Support frame assembly, 110. First support frame, 111. Second support frame, 112. Connecting rod, 113. Threaded hole, 114. Bolt, 115. Nut, 116. Groove, 117. Buffer plate, 1171. Sliding block, 118. Buffer screw, 1181. Buffer spring, 119. Conical block, 12. Support assembly, 120. Support block, 121. Telescopic rod, 122. C-shaped arc plate, 123. Arc slider, 2. Horizontal support mechanism, 21. Support column, 22. Double-axis motor, 23. Screw, 24. Sleeve, 25. Horizontal diagonal support plate, 26. Reinforcement plate, 3. Vertical adjustment mechanism, 31. U-shaped box, 32. Double-axis screw, 33. Moving block, 34. Diagonal support rod, 35. Base, 36. Bottom plate, 37. Positioning block, 38. Limit rod, 4. Purification component, 41. Dust box, 42. Catalyst box, 43. Exhaust fan, 44. Rotating motor, 45. Screw rod, 46. Screw pipe, 47. Mounting sleeve, 48. Spring, 49. Brush, 410. Grille. DETAILED DESCRIPTION

[0014] In order to enable ordinary technicians in this field to better understand the technical solution of the present invention, the following Figure 1-Figure 11 The technical solution of the present invention is further described with embodiments.

[0015] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "front end", "back end", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They 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 direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0016] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0017] The following is combined with Figure 1-Figure 11The preferred embodiments of the present invention are described. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0018] Embodiment one: like Figure 1-Figure 9 A loess tunnel supporting device includes a first supporting mechanism 1, wherein the first supporting mechanism 1 includes a supporting frame assembly 11 and a supporting assembly 12 arranged below the supporting frame assembly 11.

[0019] The support frame assembly 11 includes an arc-shaped first support frame 110 and two arc-shaped second support frames 111. The first support frame 110 and the two arc-shaped second support frames 111 are both arc-shaped curved surface structures that can fit the inner wall of the tunnel. A first connecting rod 112 is slidably arranged between the side walls of the first support frame 110 and the two second support frames 111. The first connecting rod 112 is an arc-shaped rod. Threaded holes 113 are provided on the first support frame 110, the second support frame 111 and the connecting rod 112. Bolts 114 are arranged in the threaded holes 113, and nuts 115 are arranged at both ends of the bolts 114.

[0020] Furthermore, a plurality of threaded holes 113 may be provided on the connecting rod 112 , so as to adjust the spacing and arrangement space between the first supporting frame 110 and the second supporting frame 111 , thereby adapting to different tunnel structures.

[0021] The support assembly 12 includes a support block 120 and a telescopic rod 121. The support block 120 is fixedly arranged on the lower end surface of the first support frame 110. The lower end surface of the support block 120 is fixedly connected to a C-shaped arc plate 122. The telescopic rod 121 is a telescopic rod structure, which is an existing telescopic electric cylinder structure. An arc-shaped slide groove 1221 is opened on the C-shaped arc plate 122. An arc-shaped slider 123 is slidably arranged in the arc-shaped slide groove 1221. The end of the telescopic rod 121 is fixedly connected to the arc slider 123.

[0022] The setting of the support assembly 12 can ensure that when the spatial layout of the second support frame 111 is adjusted, the corresponding telescopic rod 121 will also drive the arc-shaped slider 123 to slide. The telescopic rod 121 can be adjusted to a suitable length according to the actual spacing, thereby achieving support for the second support frame 111.

[0023] The horizontal supporting mechanism 2 is arranged at the bottom of the first supporting mechanism 1 .

[0024] The horizontal support mechanism 2 includes a vertical support column 21, a dual-axis motor 22, a screw rod 23, a sleeve 24 and a horizontal diagonal support plate 25. The support column 21 is fixedly arranged on the lower end surface of the C-shaped arc plate 122. An installation cavity is opened in the support column 21. The dual-axis motor 22 is fixedly arranged in the installation cavity. Both ends of the dual-axis motor 22 are connected to the screw rod 23. A sleeve 24 is arranged on the screw rod 23. The end of the sleeve 24 is fixedly connected to the horizontal diagonal support plate 25. A reinforcing plate 26 is fixedly arranged on the outer side surface of the horizontal diagonal support plate 25.

[0025] When in use, the dual-axis motor 22 is started to rotate the screw rod 23. The in-situ rotation of the screw rod 23 causes the sleeve 24 to move outward or inward, thereby pushing the horizontal diagonal support plate 25 outward or retracting it inward, thereby supporting the inner walls of tunnels of different sizes.

[0026] The reinforcing plate 26 has a reinforcing effect, and the gap formed is conducive to drainage after the protruding water leaks.

[0027] The vertical adjustment mechanism 3 is arranged at the lower part of the horizontal support mechanism 2 .

[0028] The vertical adjustment mechanism 3 includes a U-shaped box 31, a double-axis screw rod 32, a moving block 33, an oblique support rod 34 and a base 35. The U-shaped box 31 is fixedly arranged at the lower end of the support column 21. A double-axis motor 22 is arranged in the U-shaped box 31. Both ends of the double-axis motor 22 are connected to the double-axis screw rod 32. The double-axis screw rods 32 at both ends of the double-axis motor 22 move in reverse. The moving block 33 is arranged on the double-axis screw rod 32. The oblique support rod 34 is hinged on the double-axis screw rod 32, and the middle of the two oblique support rods 34 is rotatably connected. A positioning block 37 is fixedly arranged on the base 35. The other end of the oblique support rod 34 is hinged to the positioning block 37. A limiting hole is also provided on the base 35. A limiting rod 38 is slidably arranged in the limiting hole. The limiting rod 38 is fixedly arranged on the inner side of the U-shaped box 31.

[0029] When in use, the double-axis screw rod 22 is started, and the double-axis screw rod 22 rotates to drive the moving blocks 33 to move closer to or away from each other, and further makes the diagonal support rod 34 tend to be vertical or horizontal, thereby realizing the vertical height adjustment of the U-shaped box 31.

[0030] The limiting rod 38 plays a limiting role to ensure the stability of the U-shaped box 31.

[0031] The purification mechanism 4 is arranged on the side wall of the horizontal supporting mechanism 2 .

[0032] The purification assembly 4 includes a dust box 41, a catalyst box 42 and an exhaust fan 43. The dust box 41 is fixedly installed on the left and right sides of the support column 21. The exhaust fan 43 is fixedly connected to the rear side of the dust box 41. The upper end of the dust box 41 is fixedly connected to a rotating motor 44. The output shaft of the rotating motor 44 is connected to a screw rod 45. The screw rod 45 is provided with a spiral tube 46 through a threaded outer sleeve. The lower end of the spiral tube 46 is fixedly connected to a mounting sleeve 47. A spring 48 is provided in the mounting sleeve 47. A brush 49 is provided in the mounting sleeve 47. A grille 410 corresponding to the exhaust fan 43 is also provided in the dust box 41 to filter dust.

[0033] When in use, the rotary motor 44 is started to drive the spiral rod 45 to rotate, and the spiral rod 45 drives the spiral tube 46 to move up and down, so that the brush 49 moves up and down to complete the cleaning of the grille 410.

[0034] Embodiment 2: like Figure 10-11 , which is different from Example 1, a groove 116 is provided on the upper surface of the first support frame 110 and the second support frame 111, and a buffer plate 117 is provided in the groove 116. A sliding groove 1101 is provided on the side of the groove 116, and a sliding block 1171 is provided on the side of the buffer plate 117. The sliding block 1171 is slidably set in the sliding groove 1101, and a threaded hole is provided on the inner bottom surface of the groove 116, and a buffer screw 118 is provided in the threaded hole. The end of the buffer screw 118 is rotatably connected to the buffer plate 117, and a buffer spring 1181 is sleeved on the buffer screw 118. A conical block 119 is fixedly set on the upper surface of the buffer plate 117.

[0035] When the buffer plate 117 is compressed, the buffer spring 1181 is compressed, thereby achieving a buffering effect.

[0036] The use of the present invention: A method for using a loess tunnel support device, comprising: Move the device to the specified position, turn on the dual-axis motor 22 of the horizontal support mechanism 2, so that the horizontal diagonal support plate 25 moves outward, and then start the dual-axis motor 22 of the vertical adjustment mechanism 3 to move the support frame assembly 11 upward, thereby making the first support frame and the two arc-shaped second support frames contact the inner wall of the tunnel, thereby supporting the inner wall of the tunnel.

[0037] In this application, the term "plurality" means two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0038] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A loess tunnel support device, characterized in that: include: A first support mechanism (1), the first support mechanism (1) comprising a support frame assembly (11) and a support assembly (12) arranged below the support frame assembly (11); A horizontal support mechanism (2) arranged at the bottom of the first support mechanism (1); A vertical adjustment mechanism (3) is arranged at the lower part of the horizontal support mechanism (2); The purification mechanism (4) is arranged on the side wall of the horizontal support mechanism (2).

2. A loess tunnel support device according to claim 1, characterized in that: The support frame assembly (11) comprises an arc-shaped first support frame (110) and two arc-shaped second support frames (111); a first connecting rod (112) is slidably arranged between the side walls of the first support frame (110) and the two second support frames (111); threaded holes (113) are provided on the first support frame (110), the second support frame (111) and the connecting rod (112); bolts (114) are arranged in the threaded holes (113); nuts (115) are arranged at both ends of the bolts (114).

3. A loess tunnel support device according to claim 2, characterized in that: A groove (116) is provided on the upper surface of the first supporting frame (110) and the second supporting frame (111), a buffer plate (117) is provided on the groove (116), a sliding groove (1101) is provided on the side of the groove (116), a sliding block (1171) is provided on the side of the buffer plate (117), the sliding block (1171) is slidably arranged in the sliding groove (1101), a threaded hole is provided on the inner bottom surface of the groove (116), a buffer screw (118) is provided in the threaded hole, an end of the buffer screw (118) is rotatably connected to the buffer plate (117), a buffer spring (1181) is sleeved on the buffer screw (118), and a conical block (119) is fixedly arranged on the upper surface of the buffer plate (117).

4. A loess tunnel support device according to claim 3, characterized in that: The support assembly (12) comprises a support block (120) and a telescopic rod (121); the support block (120) is fixedly arranged on the lower end surface of the first support frame (110); the lower end surface of the support block (120) is fixedly connected to a C-shaped arc plate (122); the telescopic rod (121) is a telescopic rod structure; an arc-shaped slide groove (1221) is provided on the C-shaped arc plate (122); an arc-shaped slider (123) is slidably arranged in the arc-shaped slide groove (1221); and the end of the telescopic rod (121) is fixedly connected to the arc-shaped slider (123).

5. The loess tunnel support device according to claim 4, characterized in that: The horizontal support mechanism (2) comprises a vertical support column (21), a double-axis motor (22), a screw rod (23), a sleeve (24) and a horizontal diagonal support plate (25); the support column (21) is fixedly arranged on the lower end surface of the C-shaped arc plate (122); a mounting cavity is provided in the support column (21); the double-axis motor (22) is fixedly arranged in the mounting cavity; both ends of the double-axis motor (22) are connected to the screw rod (23); a sleeve (24) is provided on the screw rod (23); an end of the sleeve (24) is fixedly connected to the horizontal diagonal support plate (25); and a reinforcing plate (26) is fixedly provided on the outer side surface of the horizontal diagonal support plate (25).

6. A loess tunnel support device according to claim 5, characterized in that: The vertical adjustment mechanism (3) comprises a U-shaped box (31), a double-axis screw rod (32), a moving block (33), an oblique support rod (34) and a base (35). The U-shaped box (31) is fixedly arranged at the lower end of the support column (21). A double-axis motor (22) is arranged in the U-shaped box (31). Both ends of the double-axis motor (22) are connected to the double-axis screw rod (32). The moving block (33) is arranged on the double-axis screw rod (32). The oblique support rod (34) is hinged on the double-axis screw rod (32), and the middle of the two oblique support rods (34) are rotatably connected. A positioning block (37) is fixedly arranged on the base (35). The other end of the oblique support rod (34) is hinged to the positioning block (37). A limiting hole is also provided on the base (35). A limiting rod (38) is slidably arranged in the limiting hole. The limiting rod (38) is fixedly arranged on the inner side surface of the U-shaped box (31).

7. A loess tunnel support device according to claim 6, characterized in that: The purification component (4) comprises a dust box (41), a catalyst box (42) and an exhaust fan (43); the dust box (41) is fixedly mounted on the left and right sides of the support column (21); the rear side of the dust box (41) is fixedly connected to the exhaust fan (43); the upper end of the dust box (41) is fixedly connected to a rotating motor (44); the output shaft of the rotating motor (44) is fixedly connected to a spiral rod (45); the spiral rod (45) is covered with a spiral tube (46); the lower end of the spiral tube (46) is fixedly connected to a mounting sleeve (47); a spring (48) is arranged inside the mounting sleeve (47); and a brush (49) is arranged inside the mounting sleeve (47).

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