Square steel fixing equipment for tunnel supporting

Abstract

The utility model relates to the technical field of tunnel supporting, and discloses square steel fixing equipment for tunnel supporting, which comprises a fixing mechanism, the fixing mechanism comprises a bottom fixing plate, the top of the bottom fixing plate is provided with supporting plates which are symmetrically arranged, one supporting plate is provided with a side motor, and the other supporting plate is provided with a side motor. Output shafts of the side motors are connected with rotary threaded columns rotationally connected between the supporting plates on the two sides through couplings, movable blocks which are symmetrically arranged are in threaded connection with the rotary threaded columns, the spiral connection directions of the movable blocks on the two sides and the rotary threaded columns are opposite, and the movable blocks on the two sides move along the rotary threaded columns when the rotary threaded columns rotate; the moving directions of the movable blocks on the two sides are opposite, a loading plate is further arranged above the bottom fixing plate, clamping plates which are symmetrically arranged are slidably connected to the loading plate through sliding grooves, and the clamping plates on the two sides are both connected with the movable blocks on the corresponding sides. The device has the advantages of being convenient to operate, flexible to use and capable of reducing the labor intensity of workers.

Description

Technical Field

[0001] This utility model relates to a square steel fixing device for tunnel support, belonging to the technical field of tunnel support. Background Technology

[0002] Tunnel support refers to the engineering measures taken to ensure safety during tunnel construction and operation, maintain the stability of the surrounding rock, and prevent deformation and collapse of the surrounding rock. Through the installation of tunnel support, not only can rock and soil collapse be prevented during construction, protecting construction personnel from injuries caused by falling rocks and landslides, but it can also withstand various loads such as ground pressure and groundwater pressure, preventing tunnel deformation and cracking, ensuring that the tunnel shape meets design requirements, and enabling long-term stable use. Good support also creates favorable conditions for subsequent internal tunnel construction; for example, a stable tunnel environment is essential for installing drainage and ventilation systems.

[0003] In existing technologies, most common tunnel supports consist of steel arch frames composed of square steel sections. These arch frames fit tightly against the surrounding rock, restraining deformation and limiting excessive deformation and displacement. Currently, during installation, certain sections of the square steel sections (such as the bottom support legs) need to be secured to prevent swaying or displacement. Common securing devices for these square steel sections are often only suitable for one side length, making it impossible to secure sections with different lengths. This necessitates changing the securing device when dealing with different lengths, resulting in cumbersome operation and poor flexibility. Utility Model Content

[0004] In order to solve the above-mentioned problems existing in the prior art, this utility model provides a square steel fixing device for tunnel support.

[0005] The technical solution of this utility model is as follows:

[0006] A square steel fixing device for tunnel support includes a fixing mechanism. The fixing mechanism includes a bottom fixing plate, and symmetrically arranged support plates are provided on the top of the bottom fixing plate. A side motor is provided on one of the support plates. The output shaft of the side motor is connected to a rotating threaded column rotatably connected between the two support plates via a coupling. Symmetrically arranged movable blocks are threadedly connected to the rotating threaded column. The helical connection directions of the two movable blocks and the rotating threaded column are opposite. When the rotating threaded column rotates, the two movable blocks move along the rotating threaded column, and the movement directions of the two movable blocks are opposite. A load-bearing plate is also provided above the bottom fixing plate. The load-bearing plate is connected to the two support plates. Symmetrically arranged clamping plates are slidably connected to the load-bearing plate via a sliding groove. Both clamping plates are connected to the corresponding side movable blocks.

[0007] A middle support plate is provided in the middle position between the two support plates. The bottom of the middle support plate is connected to the bottom fixing plate, and the top of the middle support plate is connected to the load plate. The rotating threaded column is set to move through the middle support plate.

[0008] Among them, a limiting column is also provided between the two support plates. The two ends of the limiting column are fixedly connected to the corresponding side support plates. The arrangement direction of the limiting column is adapted to the arrangement direction of the rotating thread column. The limiting column is arranged to move through the middle support plate and the two side movable blocks.

[0009] Friction pads are provided on the side walls of the clamping plates that are close to each other on both sides, and locking bolts are threaded onto both clamping plates.

[0010] The bottom fixing plate is also threaded with fixing bolts.

[0011] The fixed equipment also includes a moving mechanism, which includes a lifting cylinder fixedly installed at the bottom of the load-bearing plate. The telescopic part of the lifting cylinder is vertically downward and is equipped with a movable wheel that moves through the bottom fixed plate.

[0012] The moving mechanism further includes a traction plate disposed on one side wall of the bottom fixing plate, and a traction bolt is disposed on the traction plate.

[0013] The fixing device further includes an adjustment mechanism, which includes a mounting plate that is threadedly connected to the top of the bottom fixing plate by mounting bolts, and an adjustment handle is provided on the top of the mounting plate.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model, by setting up a fixing mechanism, allows for the fixing of square steel bars. When square steel bars need to be fixed, they are placed on top of a load-bearing plate. Then, the side motor is started, and the rotation of the side motor output shaft drives the rotating threaded column to rotate. The rotation of the rotating threaded column causes two movable blocks to move closer to each other, thereby driving the two side clamps to move accordingly. This allows the two side clamps to tightly clamp the square steel bars, thus completing the fixing. Compared with the prior art, this invention can adapt to the fixing of square steel bars with various side lengths, without the need to change the fixing equipment. It has the advantages of convenient operation, flexible use, and reduced labor intensity for workers.

[0016] 2. By setting up a moving mechanism, when the fixed equipment needs to be moved, the lifting cylinder is controlled to start working, so that the movable wheel moves downward and contacts the ground, while the bottom fixed plate is lifted upward and does not contact the ground. Then, the external traction device is locked to the traction plate by using a traction bolt. At this time, the movement of the external traction device can drive the fixed equipment to move. It has the advantages of being convenient for workers to use and facilitating the conversion of the fixed equipment in different working positions.

[0017] 3. By setting an adjustment mechanism, when the fixed equipment needs to be finely adjusted at the working point, the operator can make the necessary adjustments by grasping the adjustment handle and moving the equipment. If the adjustment handle affects the subsequent work process after the adjustment is completed, the operator can remove the mounting plate and adjustment handle from the bottom fixing plate by turning the mounting bolts to facilitate the subsequent work. This has the advantage of being convenient for operators to use. Attached Figure Description

[0018] Figure 1 This is an isometric view of the present invention;

[0019] Figure 2 This is a structural schematic diagram of the present invention from a frontal view.

[0020] Figure 3 This is a structural schematic diagram of the present invention from a downward viewing angle;

[0021] Figure 4 This is a top-view structural schematic diagram of the present invention;

[0022] Figure 5 This is a structural schematic diagram of the present invention from the right-hand view.

[0023] The reference numerals in the figure are as follows:

[0024] 1. Fixing mechanism; 101. Bottom fixing plate; 102. Support plate; 103. Side motor; 104. Rotating threaded column; 105. Middle support plate; 106. Movable block; 107. Limiting column; 108. Clamping plate; 109. Friction pad; 110. Locking bolt; 111. Load plate; 112. Fixing bolt;

[0025] 2. Moving mechanism; 201. Lifting cylinder; 202. Movable wheel; 203. Traction plate; 204. Traction bolt;

[0026] 3. Adjustment mechanism; 301. Mounting bolts; 302. Mounting plate; 303. Adjustment handle. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0028] Example: Please refer to Figures 1-5 This embodiment provides a square steel fixing device for tunnel support, including a fixing mechanism 1. The fixing mechanism 1 includes a bottom fixing plate 101, and symmetrically arranged support plates 102 are fixedly installed on the top of the bottom fixing plate 101. A side motor 103 is fixedly installed on the side wall of one support plate 102 away from the other support plate 102. The output shaft of the side motor 103 is connected to a rotating threaded column 104 horizontally arranged between the two support plates 102 via a coupling. The two ends of the rotating threaded column 104 are rotatably connected to the two support plates 102 respectively. Symmetrically arranged movable blocks 106 are threadedly connected to the rotating threaded column 104. The helical connection directions of the two movable blocks 106 and the rotating threaded column 104 are opposite, so that when the rotating threaded column 104 rotates, the two movable blocks 106 can move in the same direction as the rotating threaded column 104, and the movement directions of the two movable blocks 106 are opposite. A load-bearing plate 111 is also provided above the bottom fixing plate 101. The bottom of the load-bearing plate 111 is fixedly connected to the top of the two side support plates 102. The top of the load-bearing plate 111 is slidably connected to symmetrically arranged clamping plates 108 through a sliding groove. The clamping plates 108 on both sides are fixedly connected to the corresponding side movable blocks 106. At the same time, in order to ensure the clamping and fixing effect, friction pads 109 are fixedly provided on the side walls of the clamping plates 108 that are close to each other. The friction pads 109 are provided with several protrusions to increase the friction when they come into contact with the square steel, so as to prevent the square steel from slipping off. Locking bolts 110 are also threadedly connected to the clamping plates 108 on both sides. The locking bolts 110 are used to connect with the threaded holes opened on the square steel.

[0029] With the aforementioned setup, when it is necessary to fix the square steel, the worker first places the fixing mechanism 1 in the desired position, and then fixes the bottom fixing plate 101. To facilitate fixing the bottom fixing plate 101, in this embodiment, fixing bolts 112 are also threaded onto the bottom fixing plate 101, with fixing bolts 112 located at each of the four corners of the bottom fixing plate 101. The worker can use the fixing bolts 112 to lock the bottom fixing plate 101 in the desired position. After the bottom fixing plate 101 is fixed, the worker places the bottom of the square steel to be installed on top of the load-bearing plate 111, and then starts the side motor 103. The output shaft of the side motor 103 rotates, which in turn drives the rotating threaded column 104 to rotate. The rotation of the rotating threaded column 104 causes the side movable blocks 106 to move closer together, thereby causing the two side clamping plates 108 to move accordingly on top of the load-bearing plate 111. This allows the two side clamping plates 108 to clamp the square steel, ensuring tight contact between the two side friction pads 109 and the square steel, thus completing the clamping and fixing. After the two side clamping plates 108 have clamped the square steel, the worker can further fix the square steel by using locking bolts 110 to connect the corresponding side clamping plates 108 to the square steel. Once the square steel is fixed, the required square steel installation work can proceed.

[0030] To enhance the load-bearing capacity of the load-bearing plate 111, a middle support plate 105 is provided at the midpoint between the two side support plates 102. The bottom of the middle support plate 105 is fixedly connected to the bottom fixing plate 101, and the top of the middle support plate 105 is fixedly connected to the load-bearing plate 111. The middle support plate 105 provides an additional support point for the load-bearing plate 111, thereby increasing its load-bearing capacity. To ensure that the rotating threaded column 104 can rotate normally, the rotating threaded column 104 is movably positioned through the middle support plate 105.

[0031] To ensure the stability of the movable blocks 106 during movement, a limiting column 107 is provided between the two support plates 102. The two ends of the limiting column 107 are fixedly connected to the corresponding side support plates 102. The arrangement direction of the limiting column 107 is adapted to the arrangement direction of the rotating threaded column 104, specifically, they are arranged parallel to each other. The limiting column 107 is movably positioned through the central support plate 105 and the two movable blocks 106. Through this arrangement, when the rotating threaded column 104 rotates and drives the two movable blocks 106 to move accordingly, the limiting column 107 ensures that the two movable blocks 106 can only move along the rotating threaded column 104 and the limiting column 107, preventing any offset or other movements and thus ensuring the stability of the two movable blocks 106 during movement.

[0032] To facilitate use by staff, in this embodiment, the fixed device further includes a moving mechanism 2. The moving mechanism 2 includes lifting cylinders 201 fixedly installed at the bottom of the load plate 111. The lifting cylinders 201 are distributed in a rectangular shape at the bottom of the load plate 111. The telescopic part of each lifting cylinder 201 is vertically downward, and each telescopic part of the lifting cylinder 201 is provided with a movable wheel 202. Each movable wheel 202 is movably installed through the bottom fixed plate 101. A traction plate 203 is also fixedly installed on one side wall of the bottom fixed plate 101, and a traction bolt 204 is movably installed on the traction plate 203. With the aforementioned configuration, when this fixed equipment needs to be moved during use, the operator can control the lifting cylinder 201 to operate. The lifting cylinder 201 causes the movable wheel 202 to move downwards, allowing it to pass through the base plate 101 and contact the ground. Simultaneously, the lifting cylinder 201 also causes the movable wheel 202 to lift the base plate 101 upwards, preventing it from contacting the ground. At this point, the movable wheel 202 replaces the base plate 101 in contact with the ground, and its rolling motion moves the fixed equipment. Alternatively, the operator can use the traction bolt 204 to lock the external traction device to the traction plate 206. In this case, moving the external traction device will move the fixed equipment, facilitating operation.

[0033] To facilitate use by staff, this embodiment of the fixing device further includes an adjustment mechanism 3. The adjustment mechanism 3 includes a mounting plate 302 threadedly connected to the top of the base fixing plate 101 via mounting bolts 301. The mounting plates 302 are symmetrically arranged on the top of the base fixing plate 101, and adjustment handles 303 are fixedly mounted on the top of each side of the mounting plates 302. With the aforementioned arrangement, when the fixing device requires fine-tuning of its working point, the staff can grasp the adjustment handles 303 and adjust the position of the base fixing plate 101 by moving it, thereby achieving the necessary adjustments to the fixing device and facilitating its use. After adjustment, if the adjustment handles 303 affect the subsequent work process, the staff can rotate the mounting bolts 301 to remove the mounting plates 302 and adjustment handles 303 from the base fixing plate 101, facilitating subsequent work.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A square steel fixing device for tunnel support, characterized in that: The utility model provides a fixing device, including fixed mechanism (1), fixed mechanism (1) includes bottom fixed plate (101), the top of bottom fixed plate (101) is provided with the support plate (102) of symmetrical arrangement, one side support plate (102) is provided with side motor (103), the output shaft of side motor (103) is connected with the rotation screw post (104) of rotation connection between both sides support plate (102) through the shaft coupling, the rotation screw post (104) is screw connected with the movable block (106) of symmetrical arrangement, both sides movable block (106) with the screw connection direction of rotation screw post (104) is opposite arrangement, when rotation screw post (104) rotates, both sides movable block (106) moves along rotation screw post (104), and the movement direction of both sides movable block (106) is opposite, the top of bottom fixed plate (101) is also provided with load plate (111), and load plate (111) is connected with both sides support plate (102), and load plate (111) is slidably connected with the clamping plate (108) of symmetrical arrangement through the setting sliding slot, both sides clamping plate (108) are connected with corresponding side movable block (106).

2. The square steel fixing device for tunnel support according to claim 1, characterized in that: The middle part between both sides support plate (102) is also provided with middle support plate (105), the bottom of middle support plate (105) is connected with bottom fixed plate (101), and the top of middle support plate (105) is connected with load plate (111), and the rotation screw post (104) is movably penetrated through middle support plate (105) and is arranged.

3. A square steel fixing device for tunnel support according to claim 2, characterized in that: Both sides support plate (102) is also provided with limiting long column (107), and both ends of limiting long column (107) are fixedly connected with corresponding side support plate (102), and the layout direction of limiting long column (107) is adaptively arranged with the layout direction of rotation screw post (104), and limiting long column (107) is movably arranged through middle support plate (105) and both sides movable block (106).

4. The square steel fixing device for tunnel support according to claim 1, characterized in that: The side wall of both sides clamping plate (108) close to each other is provided with friction pad (109), and the locking bolt (110) is also screw connected on both sides clamping plate (108).

5. The square steel fixing device for tunnel support according to claim 1, characterized in that: The bottom fixed plate (101) is also screw connected with fixed bolt (112).

6. The square steel fixing device for tunnel support according to claim 1, characterized in that: The fixing device also includes moving mechanism (2), and moving mechanism (2) includes lifting cylinder (201) fixedly arranged on the bottom of load plate (111), and the telescopic part of lifting cylinder (201) is vertically arranged downwards, and the movable wheel (202) is arranged on the telescopic part of lifting cylinder (201), and the movable wheel (202) is movably arranged through bottom fixed plate (101).

7. A square steel fixing device for tunnel support according to claim 6, characterized in that: The moving mechanism (2) also includes traction plate (203) arranged on the side wall of bottom fixed plate (101), and the traction bolt (204) is arranged on the traction plate (203).

8. The square steel fixing device for tunnel support according to claim 1, characterized in that: The fixing device also includes adjusting mechanism (3), and adjusting mechanism (3) includes mounting plate (302) screw connected on the top of bottom fixed plate (101) through the setting mounting bolt (301), and the top of mounting plate (302) is provided with adjusting handle (303).

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