Steel frame structure of tunnel support

Abstract

The utility model discloses a steel frame structure for tunnel support, which relates to the technical field of tunnel support and comprises four support rods, the top of each support rod is fixedly connected with a connecting table, the four support rods are uniformly distributed at the bottom of the connecting table, the inside of the connecting table is fixedly connected with a guide rod, and the guide rod is fixedly connected with the bottom of the connecting table. The outer side of the guide rod is slidably connected with a plurality of sliding seats in a sleeving mode, the sliding seats are slidably connected with the connecting table, and the left end and the right end of the connecting table are slidably connected with a plurality of evenly-distributed connecting rods. By designing the sliding connection between the connecting seat and the connecting table, the connecting seat can slide relative to the connecting table, and meanwhile, the connecting seat can be limited to a certain extent through the insertion matching of the inclined block and the inclined groove, so that the connecting seat is prevented from sliding at will; the horizontal position of each supporting piece can be independently adjusted through sliding of the connecting base, and the supporting piece can be conveniently suitable for supporting and using in different tunnel environments.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel support, in particular to a steel frame structure of tunnel support. Background Art

[0002] During tunnel construction, it is necessary to set up a support structure on the tunnel wall to reinforce the tunnel wall. The utility model patent with the patent authorization announcement number CN220081463U discloses a tunnel support device, which relates to the technical field of tunnel construction, including a support frame, a height adjustment member, a longitudinal support assembly, a width adjustment assembly, a horizontal support assembly and a moving assembly. When the utility model is in use, the support frame can be moved into the tunnel by the moving assembly, and the top wall and side wall of the tunnel can be supported and protected by adjusting the width adjustment assembly and the height adjustment member. The utility model is moved by the moving assembly, and there is no need to set up on site. The setting efficiency is high, and the height and width of the support can be adjusted. It is very convenient to use, and the support can be formed without damaging the wall of the tunnel, avoiding the situation of rockfall caused by damage, and has high safety.

[0003] In the above-mentioned prior art, when the tunnel support is in use, it is not convenient to individually adjust the horizontal position of each support member, and the flexibility of use is insufficient. In addition, since the top of the tunnel is not completely on the same horizontal line, when supporting the tops of tunnels of different heights, since the support members are on the same horizontal line, the fit between the support members and the tunnel is insufficient, and thus the top of the tunnel cannot be stably supported. Therefore, it is necessary to improve the prior art. Utility Model Content

[0004] The utility model provides a steel frame structure for tunnel support, which solves the technical problems of inconvenience in individually adjusting the horizontal position of a support member and inconvenience in adapting to an uneven tunnel for stable support.

[0005] To solve the above technical problems, the utility model provides a steel frame structure for tunnel support, including a support rod, the top of the support rod is fixedly connected to a connecting platform, the number of the support rods is four, and the four support rods are evenly distributed at the bottom of the connecting platform, the inside of the connecting platform is fixedly connected to a guide rod, the outer side of the guide rod is slidably sleeved with a plurality of sliding seats, the sliding seats are slidably connected to the connecting platform, the left and right ends of the connecting platform are slidably connected with a plurality of evenly distributed connecting rods, the tops of the two symmetrical connecting rods are commonly fixedly connected to a support member, the support member is made of stainless steel, an adjustment mechanism is provided on the connecting rod, and a lifting mechanism is provided on the support member.

[0006] Preferably, the adjustment mechanism includes a slide groove, the connecting rod is provided with a slide groove inside, a slider is slidably sleeved inside the slide groove, a connecting seat is fixedly connected to the outside of the sliding block, the connecting seat is slidably connected to the connecting rod and the connecting platform respectively, the connecting platform is provided with an inclined groove inside, an inclined block is slidably connected inside the inclined groove, the inclined block is slidably connected to the connecting seat, a fixed rod is slidably sleeved inside the inclined block, the fixed rod is fixedly connected to the connecting seat, and a spring is arranged on the outside of the fixed rod. By designing the adjustment mechanism, it is convenient to adjust the horizontal position of the support.

[0007] Preferably, there are multiple inclined grooves, and the multiple inclined grooves are evenly distributed inside the connecting platform. By designing multiple inclined grooves, the inclined block can slide into the inclined grooves at different positions.

[0008] Preferably, one end of the spring is fixedly connected to the inclined block, and the other end of the spring is fixedly connected to the connecting seat. The spring is designed so that the force of the spring can act on the inclined block.

[0009] Preferably, the lifting mechanism includes a fixed seat, the top of the connecting platform is fixedly connected to the fixed seat, a hydraulic cylinder is fixedly installed inside the fixed seat, the output end of the hydraulic cylinder is slidably connected to the fixed seat, the upper end of the output end of the hydraulic cylinder is fixedly connected to the support, the lower end of the support is fixedly connected to two symmetrically distributed guide rods, the outer side of the guide rod is slidably sleeved with a guide sleeve, the guide sleeve is fixedly connected to the connecting platform, a groove is opened inside the guide rod, a ball is movably sleeved inside the groove, and the ball is movably sleeved inside the guide sleeve. By designing the lifting mechanism, it is convenient to adjust the height of the support.

[0010] Preferably, the number of the balls is multiple, and the balls are evenly distributed inside the guide sleeve. By designing the balls, the movement of the guide rod can be guided.

[0011] Compared with the related art, the steel frame structure for tunnel support provided by the utility model has the following beneficial effects:

[0012] The utility model provides a steel frame structure for tunnel support. By designing a sliding connection between a connecting seat and a connecting platform, the connecting seat can slide relative to the connecting platform. At the same time, the plug-in cooperation of the inclined block and the inclined groove can play a certain limiting role on the connecting seat to prevent the connecting seat from sliding randomly. The sliding of the connecting seat makes it possible to adjust the horizontal position of each support member individually, so as to adapt to different tunnel environments for support use.

[0013] The utility model provides a steel frame structure for tunnel support. By designing the function of the hydraulic cylinder, the hydraulic cylinder can drive the support member to move in the vertical direction, so that the support height of the support member can be adjusted, and the height of each support member can be adjusted individually, so that even if the height of the tunnel top is different, stable support work for the tunnel can be achieved. At the same time, the movement of the support member can be guided by the cooperation of the guide rod and the guide sleeve to improve the stability, and the sliding friction can be converted into rolling friction under the action of the ball, thereby reducing the influence of friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The overall structure of the utility model is three-dimensional Figure 1 ;

[0015] Figure 2 The overall structure of the utility model is three-dimensional Figure 2 ;

[0016] Figure 3 For this utility model Figure 1 The local structure front view and cross-sectional view;

[0017] Figure 4 For this utility model Figure 3 Enlarged view of point A in .

[0018] Numbers in the figure:

[0019] 1. Support rod; 2. Connecting platform; 3. Guide rod; 4. Sliding seat; 5. Connecting rod; 6. Support member; 7. Adjusting mechanism; 8. Lifting mechanism; 71. Slide groove; 72. Sliding block; 73. Connecting seat; 74. Inclined groove; 75. Inclined block; 76. Fixed rod; 77. Spring; 81. Fixed seat; 82. Hydraulic cylinder; 83. Guide rod; 84. Guide sleeve; 85. Groove; 86. Ball. DETAILED DESCRIPTION

[0020] See also Figure 1 , Figure 2 A steel frame structure for tunnel support includes a support rod 1, a connecting platform 2 is fixedly connected to the top of the support rod 1, there are four support rods 1, and the four support rods 1 are evenly distributed at the bottom of the connecting platform 2. A guide rod 3 is fixedly connected to the inside of the connecting platform 2, and a plurality of slide seats 4 are slidably sleeved on the outer side of the guide rod 3. The slide seats 4 are slidably connected to the connecting platform 2. The left and right ends of the connecting platform 2 are slidably connected to a plurality of evenly distributed connecting rods 5. The tops of two symmetrical connecting rods 5 are fixedly connected to a support member 6, and the support member 6 is made of stainless steel. An adjusting mechanism 7 is arranged on the connecting rod 5, and a lifting mechanism 8 is arranged on the support member 6.

[0021] See also Figure 1 , Figure 2The adjusting mechanism 7 includes a slide groove 71, a slide groove 71 is provided inside the connecting rod 5, a slider 72 is slidably sleeved inside the slide groove 71, a connecting seat 73 is fixedly connected to the outside of the slider 72, and the connecting seat 73 is slidably connected to the connecting rod 5 and the connecting platform 2 respectively. The connecting platform 2 is provided with an inclined groove 74, and an inclined block 75 is slidably connected inside the inclined groove 74. There are multiple inclined grooves 74, and multiple inclined grooves 74 are evenly distributed inside the connecting platform 2. By designing multiple inclined grooves 74, the inclined block 75 can slide into the inclined grooves 74 at different positions, and the inclined block 75 is slidably connected to the connecting seat 73. The internal sliding sleeve of the inclined block 75 is connected with a fixing rod 76, and the fixing rod 76 is fixedly connected to the connecting seat 73. A spring 77 is provided on the outside of the fixing rod 76, one end of the spring 77 is fixedly connected to the inclined block 75, and the other end of the spring 77 is fixedly connected to the connecting seat 73. By designing the spring 77, the force of the spring 77 can act on the inclined block 75. By designing the adjusting mechanism 7, it is convenient to adjust the horizontal position of the support member 6.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The lifting mechanism 8 includes a fixed seat 81, the top of the connecting platform 2 is fixedly connected with the fixed seat 81, a hydraulic cylinder 82 is fixedly installed inside the fixed seat 81, the output end of the hydraulic cylinder 82 is slidably connected to the fixed seat 81, the upper end of the output end of the hydraulic cylinder 82 is fixedly connected to the support member 6, and the lower end of the support member 6 is fixedly connected to two symmetrically distributed guide rods 83, the outer side of the guide rod 83 is slidably sleeved with a guide sleeve 84, the guide sleeve 84 is fixedly connected to the connecting platform 2, a groove 85 is opened inside the guide rod 83, the inner part of the groove 85 is movably sleeved with a ball 86, the ball 86 is movably sleeved inside the guide sleeve 84, the number of the ball 86 is multiple, and the multiple balls 86 are evenly distributed inside the guide sleeve 84, by designing the ball 86, the movement of the guide rod 83 can be guided, and by designing the lifting mechanism 8, it is convenient to adjust the height of the support member 6.

[0023] Working principle: During use, when the position of the support member 6 needs to be adjusted, the connecting rod 5 is directly pushed, and the connecting rod 5 drives the slider 72 and the connecting seat 73 to move horizontally. The connecting seat 73 drives the inclined block 75 to slide along the inclined groove 74. The inclined block 75 is squeezed by the inclined surface of the inclined groove 74 and moves horizontally. The inclined block 75 slides along the fixed rod 76 to squeeze the spring 77, so that the inclined block 75 can be separated from the inclined groove 74. As the connecting seat 73 moves, the inclined block 75 can be reset and pushed into the inclined groove 74 at another position under the elastic action of the spring 77, so that the horizontal position of each support member 6 can be adjusted individually, which is convenient for adapting to different tunnel environments for support use.

[0024] When it is necessary to adjust the height of the support member 6, start the hydraulic cylinder 82, and the output end of the hydraulic cylinder 82 drives the support member 6 to move, and the support member 6 drives the guide rod 83 to slide along the guide sleeve 84, which can guide the movement of the support member 6 and improve the stability of the lifting process. At the same time, the guide rod 83 will slide relative to the ball 86, which can convert the sliding friction into rolling friction and reduce the influence of friction. Finally, the height of the support member 6 can be adjusted, and the height of each support member 6 can be adjusted separately. Even if the height of the tunnel top is different, stable support for the tunnel can be achieved.

Claims

1. A steel frame structure for tunnel support, comprising a support rod (1), characterized in that: The top of the support rod (1) is fixedly connected to a connecting platform (2), the number of the support rods (1) is four, and the four support rods (1) are evenly distributed at the bottom of the connecting platform (2), the inside of the connecting platform (2) is fixedly connected to a guide rod (3), the outer side of the guide rod (3) is slidably sleeved with a plurality of slide seats (4), the slide seats (4) are slidably connected to the connecting platform (2), the left and right ends of the connecting platform (2) are slidably connected to a plurality of evenly distributed connecting rods (5), the tops of the two symmetrical connecting rods (5) are fixedly connected to a support member (6), the support member (6) is made of stainless steel, the connecting rod (5) is provided with an adjustment mechanism (7), and the support member (6) is provided with a lifting mechanism (8).

2. A tunnel support steel frame structure according to claim 1, characterized in that: The adjusting mechanism (7) comprises a slide groove (71), the connecting rod (5) is provided with a slide groove (71), a slider (72) is slidably sleeved inside the slide groove (71), a connecting seat (73) is fixedly connected to the outer side of the slider (72), the connecting seat (73) is slidably connected to the connecting rod (5) and the connecting platform (2) respectively, an inclined groove (74) is provided inside the connecting platform (2), an inclined block (75) is slidably connected inside the inclined groove (74), the inclined block (75) is slidably connected to the connecting seat (73), a fixed rod (76) is slidably sleeved inside the inclined block (75), the fixed rod (76) is fixedly connected to the connecting seat (73), and a spring (77) is arranged on the outer side of the fixed rod (76).

3. A tunnel support steel frame structure according to claim 2, characterized in that: There are a plurality of inclined grooves (74), and the plurality of inclined grooves (74) are evenly distributed inside the connecting platform (2).

4. A tunnel support steel frame structure according to claim 2, characterized in that: One end of the spring (77) is fixedly connected to the inclined block (75), and the other end of the spring (77) is fixedly connected to the connecting seat (73).

5. The steel frame structure for tunnel support according to claim 1, characterized in that: The lifting mechanism (8) comprises a fixed seat (81), the top of the connecting platform (2) is fixedly connected to the fixed seat (81), a hydraulic cylinder (82) is fixedly installed inside the fixed seat (81), the output end of the hydraulic cylinder (82) is slidably connected to the fixed seat (81), the upper end of the output end of the hydraulic cylinder (82) is fixedly connected to the support member (6), the lower end of the support member (6) is fixedly connected to two symmetrically distributed guide rods (83), the outer side of the guide rod (83) is slidably sleeved with a guide sleeve (84), the guide sleeve (84) is fixedly connected to the connecting platform (2), a groove (85) is provided inside the guide rod (83), a ball (86) is movably sleeved inside the groove (85), and the ball (86) is movably sleeved inside the guide sleeve (84).

6. A tunnel support steel frame structure according to claim 5, characterized in that: The number of the balls (86) is multiple, and the balls (86) are evenly distributed inside the guide sleeve (84).

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