A roadway support structure

Abstract

A kind of roadway support structure, including support leg, first support column, second support column, support beam, the support leg is made of left side support leg, right side support leg, and the bottom of left side support leg, right side support leg is respectively provided with universal wheel, first support cylinder is fixed in the inside of left side support leg, second support cylinder is fixed in top side, third support cylinder is fixed in the top of right side support leg, first support column is slidably arranged in second support cylinder, second support column is slidably arranged in third support cylinder, first transverse column is slidably arranged in first support cylinder, and one end of first transverse column is connected with the telescopic end of first telescopic push rod, the other end is fixedly connected with the side of right side support leg, the top of first support column, second support column is respectively fixed with a connecting block, the support beam is arc-shaped, and is inserted into the connecting block in the top of first support column, second support column.This utility model has the advantages of strong applicability, reduce labor intensity etc.

Description

Technical Field

[0001] This utility model relates to the field of support technology, and in particular to a roadway support structure. Background Technology

[0002] During the excavation and mining of underground roadways, failure to provide timely support can lead to deformation, displacement, and damage of the surrounding rock, jeopardizing the smooth and safe progress of the excavation. Underground roadway excavation requires consideration of geological structure, excavation equipment, excavation technology, and excavation speed, as well as factors such as construction speed, construction organization and management, and the qualifications of construction personnel. Therefore, it is a systematic and complex project. For current underground production, effective support control of underground roadways has become a crucial issue that must be addressed.

[0003] A patent application (CN 210460706U) discloses an underground roadway support device for coal mines, comprising a support base, a telescopic barrel, and an arc-shaped support beam. An angle steel is installed on the upper surface of the support base, and the telescopic barrel is fixedly connected to one side of the angle steel by screws. A telescopic column is inserted into the inside of the telescopic barrel, and a pointed protrusion is fixedly connected to the top of the telescopic column. The arc-shaped support beam is fixedly connected to the top of the pointed protrusion, and several fixing grooves are formed in the middle of the bottom of the arc-shaped support beam. This underground roadway support device for coal mines, through the installation of the telescopic barrel and telescopic column, facilitates the adjustment of the height of the arc-shaped support beam, enabling support for roadways of different heights. The shear bracing improves the support effect of the device. The fixing grooves, fixing bolts, and fixing plates facilitate pipeline laying, increasing the functionality of the support device and making pipeline installation more convenient.

[0004] However, the width of the aforementioned support device is fixed, which makes it impossible to effectively support roadways of different widths. In addition, the integrated support device is not easy to move, and adjusting its position in the roadway is time-consuming and laborious. Therefore, there is room for improvement. Utility Model Content

[0005] This utility model provides a tunnel support structure to solve the problems mentioned in the background art.

[0006] To address the aforementioned problems, this utility model provides a tunnel support structure, including support legs, a first support column, a second support column, and a support beam. The support legs consist of a left support leg and a right support leg, each with a caster wheel at its bottom. A positioning plate is fixed to the inner side of each caster wheel on both the left and right support legs, with a positioning rod threaded to each end of the positioning plate. A first support cylinder is fixed to the inner side of the left support leg, and a second support cylinder is fixed to its top side, with the first and second support cylinders perpendicular to each other. A third support cylinder is fixed to the top of the right support leg. A first telescopic push rod and a second telescopic push rod are respectively installed inside the first and second support cylinders. The first support column is slidably disposed within the second support cylinder and connected to the telescopic end of the second telescopic push rod. The second support column is slidably disposed within the third support cylinder. A first transverse column is slidably disposed within the first support cylinder, with one end of the first transverse column connected to the telescopic end of the first telescopic push rod and the other end fixedly connected to the side of the right support leg. A connecting block is fixedly disposed at the top of the first support column and the second support column, respectively. A fourth support cylinder is fixedly disposed inside the connecting block at the top of the second support column, and a second transverse column is slidably disposed within the fourth support cylinder. The end of the second transverse column away from the second support column is fixedly connected to the connecting block at the top of the first support column. The support beam is arc-shaped, and both ends have connecting blocks at the bottom that are inserted into the tops of the first and second support columns.

[0007] Preferably, the top of the third support cylinder has two first positioning holes, and the second support column has several second positioning holes that match the first positioning holes. The third support cylinder and the second support column are connected by bolts passing through the first positioning holes and the second positioning holes.

[0008] Preferably, the fourth support cylinder has a third positioning hole, and the second transverse column has a plurality of fourth positioning holes that match the third positioning hole at equal intervals, and the fourth support cylinder and the second transverse column are connected by bolts passing through the third positioning hole and the fourth positioning hole.

[0009] Preferably, the top of the support beam is provided with several positioning plates.

[0010] The beneficial effects of adopting the above technical solutions are:

[0011] 1. The use of casters at the bottom of the left and right support legs facilitates the movement of the entire support mechanism, making it easy to adjust its position, reducing labor intensity, and improving work convenience. Furthermore, the positioning plate and positioning rod are used to position the support frame after it has been moved, thereby ensuring the stability of the entire support frame.

[0012] 2. The first telescopic push rod pushes the first transverse rod to extend and retract, thereby adjusting the distance between the left and right support legs to better fit the width of the tunnel. The second telescopic push rod pushes the first support column to extend and retract, thereby adjusting the height of the support beam to better fit the height of the tunnel, thus improving applicability.

[0013] 3. By using bolts in conjunction with the first and second positioning holes, the stability between the third support cylinder and the second support column is reinforced. By using bolts in conjunction with the third and fourth positioning holes, the stability between the fourth support cylinder and the second transverse column is reinforced, thereby improving the stability of the entire support structure and ensuring the support effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a perspective structural diagram of the present invention.

[0016] Figure 3 This is a side view of the structure of this utility model.

[0017] Wherein: 1-Support leg; 11-Left support leg; 12-Right support leg; 13-First support cylinder; 14-Second support cylinder; 15-Third support cylinder; 151-First positioning hole; 16-First telescopic push rod; 17-Second telescopic push rod; 18-First transverse column; 2-First support column; 3-Second support column; 31-Second positioning hole; 4-Support beam; 41-Positioning insert plate; 42-Insert rod; 5-Universal wheel; 6-Positioning plate; 61-Positioning insert rod; 7-Connecting block; 71-Fourth support cylinder; 711-Third positioning hole; 72-Second transverse column; 721-Fourth positioning hole. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0019] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, a movable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figure 1-3 In this embodiment, a roadway support structure includes a support leg 1, a first support column 2, a second support column 3, and a support beam 4. The support leg 1 is composed of a left support leg 11 and a right support leg 12, and the bottom of the left support leg 11 and the right support leg 12 are respectively provided with casters 5. A positioning plate 6 is fixedly installed on the inner side of the casters 5 on the left support leg 11 and the right support leg 12, and a positioning rod 61 is threaded to both ends of the positioning plate 6. A first support cylinder 13 is fixedly installed on the inner side of the left support leg 11, and a second support cylinder 14 is fixedly installed on the top side, and the first support cylinder 13 and the second support cylinder 14 are perpendicular to each other. A third support cylinder 15 is fixedly installed on the top of the right support leg 12. A first telescopic push rod 16 and a second telescopic push rod 17 are respectively installed in the first support cylinder 13 and the second support cylinder 14. A support column 2 is slidably disposed within a second support cylinder 14 and connected to the telescopic end of a second telescopic push rod 17. A second support column 3 is slidably disposed within a third support cylinder 15. A first transverse column 18 is slidably disposed within the first support cylinder 13, with one end of the first transverse column 18 connected to the telescopic end of a first telescopic push rod 16 and the other end fixedly connected to the side of a right support leg 12. A connecting block 7 is fixedly disposed at the top of the first support column 2 and the second support column 3, and a fourth support cylinder 71 is fixedly disposed inside the connecting block 7 at the top of the second support column 3. A second transverse column 72 is slidably disposed within the fourth support cylinder 71, with one end of the second transverse column 72 away from the second support column 3 fixedly connected to the connecting block 7 at the top of the first support column 2. The support beam 4 is arc-shaped, and both ends have insert rods 42 inserted into the connecting blocks 7 at the top of the first support column 2 and the second support column 3.

[0022] Through the above technical solution, the second support cylinder 14 and the third support cylinder 15 are supported during use, and then the casters 5 at the bottom of the left support leg 11 and the right support leg 12 make the entire support structure easy to move, reducing labor intensity and improving work convenience. When it reaches the designated position, the first telescopic push rod 16 pushes the first transverse column 18 to move inside the first support cylinder 13, thereby moving the right support leg 3 so that the right support leg 3 fits against the roadway surface, thereby adjusting the width of the support structure to adapt to roadways of different widths. At this time, a suitable support beam 4 is selected and inserted into the connecting block 7 at the top of the first support column 2 and the second support column 3 with the insertion rod 42. Then, the second telescopic push rod 17 drives the first support column 2 to move upward, thereby adjusting the height of the support beam 4 so that the support beam 4 touches the top of the roadway, making it easy to adapt to roadways of different heights, thereby completing the support operation.

[0023] Preferably, the top of the third support cylinder 15 has two first positioning holes 151, and the second support column 3 has a plurality of second positioning holes 31 that match the first positioning holes 151. The third support cylinder 15 and the second support column 3 are connected by bolts passing through the first positioning holes 151 and the second positioning holes 31.

[0024] Through the above technical solution, the first positioning hole 151 and the second positioning hole 31, together with bolts, can fix the adjusted third support cylinder 15 and the second support column 3, thereby cooperating with the second telescopic push rod 17 and the first support column 2 inside the second support cylinder 14 to ensure the support of the support beam 4.

[0025] Preferably, the fourth support cylinder 71 is provided with a third positioning hole 711, and the second transverse column 72 is provided with a plurality of fourth positioning holes 721 that match the third positioning hole 711 at equal intervals, and the fourth support cylinder 71 and the second transverse column 72 are connected by bolts passing through the third positioning hole 711 and the fourth positioning hole 721.

[0026] Through the above technical solution, the third positioning hole 711 and the fourth positioning hole 721, together with bolts, securely position the fourth support cylinder 71 and the second transverse column 72, thereby improving the support of the entire support structure.

[0027] Preferably, the top of the support beam 4 is provided with several positioning plates 41.

[0028] Through the above technical solution, the positioning plate 41 makes the connection between the support beam 4 and the top of the tunnel more stable, thereby improving the stability of the support.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate this utility model and are not intended to limit the technical solutions described in this utility model. Therefore, although this specification has described this utility model in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model, and all technical solutions and improvements that do not depart from the spirit and scope of this utility model should be covered within the scope of the claims of this utility model; technologies not described in detail in this utility model are implemented using existing technologies.

Claims

1. A roadway support structure, comprising support legs, a first support column, a second support column, and a support beam, characterized in that: The support legs consist of a left support leg and a right support leg, with omnidirectional wheels at the bottom of each leg. A positioning plate is fixed inside each of the omnidirectional wheels, and a positioning rod is threaded to each end of the positioning plate. A first support cylinder is fixed inside the left support leg, and a second support cylinder is fixed to its top, with the first and second support cylinders perpendicular to each other. A third support cylinder is fixed to the top of the right support leg. A first telescopic push rod and a second telescopic push rod are respectively installed inside the first and second support cylinders. The first support rod is slidably disposed within the second support cylinder and is connected to the second telescopic push rod. The telescopic end of the rod is connected, the second support column is slidably disposed in the third support cylinder, the first support cylinder is slidably disposed in the first support cylinder, and one end of the first transverse column is connected to the telescopic end of the first telescopic push rod, and the other end is fixedly connected to the side of the right support leg. A connecting block is fixedly disposed at the top of the first support column and the second support column respectively, and a fourth support cylinder is fixedly disposed inside the connecting block at the top of the second support column, and a second transverse column is slidably disposed in the fourth support cylinder. The end of the second transverse column away from the second support column is fixedly connected to the connecting block at the top of the first support column. The support beam is arc-shaped, and the bottom of both ends is provided with insert rods inserted into the connecting blocks at the top of the first support column and the second support column.

2. The tunnel support structure according to claim 1, characterized in that: The top of the third support cylinder has two first positioning holes, and the second support column has several second positioning holes that match the first positioning holes. The third support cylinder and the second support column are connected by bolts passing through the first positioning holes and the second positioning holes.

3. The tunnel support structure according to claim 1, characterized in that: The fourth support cylinder has a third positioning hole, and the second transverse column has several fourth positioning holes that match the third positioning hole at equal intervals. The fourth support cylinder and the second transverse column are connected by bolts passing through the third positioning hole and the fourth positioning hole.

4. The tunnel support structure according to claim 1, characterized in that: The top of the support beam is provided with several positioning plates.

Images