Detachable combined steel support for tunnel construction

Abstract

The utility model relates to steel support technical field, and disclose a detachable combined steel support for tunnel construction, including support plate mechanism, still include: support mechanism and pressure regulating mechanism, the bottom of support plate mechanism and the top of pressure regulating mechanism swing joint, the bottom of pressure regulating mechanism and the top of support mechanism fixed connection, the utility model discloses through the support plate mechanism top close -fit in tunnel top, and make adjacent support plate main body splice together, place support mechanism in suitable position, and make splicing post align splicing seat, rotate threaded shaft and drive telescopic column along the inner wall of stand to move upwards through thread, make splicing post insert splicing seat inside, the top board is immobile, telescopic column continues to push base to move upwards, make pressure spring contract, and make pressure spring contract certain distance, produce constant pressure to the top board to the utility model discloses, thereby make support plate mechanism to the pressure of tunnel top in fixed value support, be favorable to the security of steel support.

Description

Technical Field

[0001] This utility model relates to the field of steel support technology, and more specifically to a detachable and modular steel support for tunnel construction. Background Technology

[0002] A tunnel is an engineering structure buried underground, representing a form of human utilization of underground space. By traversing natural obstacles such as mountains and rivers, tunnels effectively overcome elevation barriers, shorten travel distances, and connect transportation networks. Because tunnel construction reduces damage to surface vegetation and ecology while protecting natural landscapes, it is widely used in municipal engineering, water conservancy projects, mining, and national defense to meet diverse needs. During tunnel construction, steel supports are used to ensure construction safety. These supports, through steel arches and steel braces, effectively distribute soil and water pressure, ensuring tunnel stability.

[0003] Insufficiency of existing technology: Most existing supports are fixed structures, which cannot accurately control the pressure exerted on the tunnel during use. This can easily lead to insufficient pressure on the support, or excessive pressure causing damage to the tunnel and affecting tunnel safety. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a detachable combined steel support for tunnel construction to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a detachable combined steel support for tunnel construction, comprising a support plate mechanism, and further comprising: a support mechanism and a pressure adjustment mechanism. The bottom end of the support plate mechanism is movably connected to the top end of the pressure adjustment mechanism, and the bottom end of the pressure adjustment mechanism is fixedly connected to the top end of the support mechanism. The support plate mechanism includes a support plate body, and a splicing seat is fixedly connected to the bottom end of the support plate body. The support mechanism includes a column, and a threaded shaft is movably sleeved on the inner wall of the bottom end of the column. A telescopic column is threadedly connected to the side of the threaded shaft. The pressure adjustment mechanism includes a base, and the bottom end of the base is fixedly connected to the top end of the telescopic column. A pressure spring is fixedly connected to the top end of the base, and a top plate is fixedly connected to the top end of the pressure spring. A splicing column is fixedly connected to the top end of the top plate, and the side of the splicing column is movably connected to the inner wall of the side of the splicing seat.

[0006] Furthermore, a threaded post is fixedly connected to the bottom end of the top plate, and a fifth through hole is opened at the top end of the base corresponding to the position of the threaded post. An upper fixing nut is threadedly connected to the side of the threaded post, and the upper fixing nut is located at the top end of the base. A lower fixing nut is threadedly connected to the side of the threaded post, and the lower fixing nut is located at the bottom end of the base.

[0007] Furthermore, a marker is fixedly connected to the bottom of the top plate, a storage hole is provided at the top of the base corresponding to the position of the marker, and the marker is provided with scale on its side.

[0008] Furthermore, the top of the splicing column is provided with a rounded corner, the side of the splicing column is provided with a fourth through hole, and the side of the splicing base is provided with a second through hole corresponding to the fourth through hole. The second through hole and the fourth through hole are fixed together by bolts.

[0009] Furthermore, a lower slot is provided on the side of the support plate body, and an upper slot is provided on the side of the support plate body. The sides of the adjacent lower slots and the sides of the upper slots engage with each other. A threaded hole is provided at the top of the lower slot, and a first through hole is provided at the bottom of the upper slot corresponding to the position of the threaded hole. A fastening bolt is threadedly connected to the inner wall of the side of the threaded hole.

[0010] Furthermore, a worm gear is fixedly sleeved on the side of the threaded shaft, and a worm is movably sleeved on the side of the column. The side of the worm meshes with the side of the worm gear. A hexagonal groove is provided on the side of the worm, and a fastening nut is threadedly connected to the side of the worm.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. This utility model involves placing the top of the support plate mechanism tightly against the tunnel roof and splicing adjacent support plate bodies together. The support mechanism is placed in a suitable position, and the splicing column is aligned with the splicing seat. Rotating the threaded shaft drives the telescopic column to move upward along the inner wall of the column through the thread, so that the splicing column is inserted into the splicing seat. At this time, the top plate remains stationary, and the telescopic column continues to push the base upward, causing the pressure spring to contract. The pressure spring contracts to a certain distance, generating constant pressure on the top plate, thereby enabling the support plate mechanism to support the pressure on the tunnel roof at a fixed value, which is beneficial to improving the safety of the steel support.

[0013] 2. This utility model uses the contraction of a pressure spring to slide a marker along the receiving hole. The pressure generated when the pressure spring deforms is determined by the scale on the marker. The pressure spring is contracted to a certain distance to generate constant pressure on the top plate. Tightening the upper and lower fixing nuts fixes the top plate, preventing the pressure spring from deforming further, facilitating equipment adjustment, and ensuring equipment stability.

[0014] 3. When the main bodies of adjacent support plates are spliced ​​together, the upper slot on the side of one support plate is inserted into the lower slot on the side of another support plate, and then fixed by fastening bolts passing through the first through hole and the threaded hole. This avoids gaps between adjacent support plates and helps improve the sealing performance of the steel bracket. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the support plate mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the pressure regulating mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the support mechanism of this utility model.

[0019] The attached figures are labeled as follows: 1. Support plate mechanism; 101. Support plate body; 102. Splicing seat; 103. Upper slot; 104. Lower slot; 105. First through hole; 106. Threaded hole; 107. Second through hole; 2. Support mechanism; 201. Column; 202. Telescopic column; 203. Threaded shaft; 204. Worm gear; 205. Worm; 206. Fastening nut; 207. Hexagonal slot; 3. Pressure adjustment mechanism; 301. Base; 302. Top plate; 303. Threaded column; 304. Splicing column; 305. Pressure spring; 306. Upper fixing nut; 307. Lower fixing nut; 308. Storage hole; 309. Marker; 310. Rounded corner; 311. Fourth through hole. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The detachable combined steel support for tunnel construction involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Reference Figures 1 to 4This utility model provides a detachable combined steel support for tunnel construction, including a support plate mechanism 1, a support mechanism 2, and a pressure adjusting mechanism 3. The bottom end of the support plate mechanism 1 is movably connected to the top end of the pressure adjusting mechanism 3, and the bottom end of the pressure adjusting mechanism 3 is fixedly connected to the top end of the support mechanism 2. The support plate mechanism 1 includes a support plate body 101, and a splicing seat 102 is fixedly connected to the bottom end of the support plate body 101. The support mechanism 2 includes a column 201, and a threaded shaft 203 is movably sleeved on the inner wall of the bottom end of the column 201. A telescopic column 202 is threadedly connected to the side of the threaded shaft 203. The pressure adjusting mechanism 3 includes a base 301, the bottom end of the base 301 is fixedly connected to the top end of the telescopic column 202, and a pressure spring 305 is fixedly connected to the top end of the base 301. A pressure spring 305 is fixedly connected to the top end of the pressure spring 305. The top plate 302 has a splicing column 304 fixedly connected to its top. The side of the splicing column 304 is movably connected to the inner wall of the side of the splicing seat 102. When the equipment is in use, the top of the support plate mechanism 1 is pressed tightly against the top of the tunnel, and the adjacent support plate bodies 101 are spliced ​​together. The support mechanism 2 is placed in a suitable position, and the splicing column 304 is aligned with the splicing seat 102. The threaded shaft 203 is rotated to drive the telescopic column 202 to move upward along the inner wall of the column 201 through the thread, so that the splicing column 304 is inserted into the splicing seat 102. At this time, the top plate 302 does not move, and the telescopic column 202 continues to push the base 301 upward, so that the pressure spring 305 contracts and contracts to a certain distance, generating a constant pressure on the top plate 302, thereby supporting the pressure of the support plate mechanism 1 on the top of the tunnel at a fixed value.

[0022] The top plate 302 is fixedly connected to the bottom end of a threaded post 303. The top end of the base 301 is provided with a fifth through hole corresponding to the position of the threaded post 303. The side of the threaded post 303 is threadedly connected to an upper fixing nut 306, which is located at the top end of the base 301. The side of the threaded post 303 is threadedly connected to a lower fixing nut 307, which is located at the bottom end of the base 301. After the pressure spring 305 is contracted to a certain value, the upper fixing nut 306 and the lower fixing nut 307 are tightened to fix the top plate 302, preventing the pressure spring 305 from continuing to deform and ensuring that the pressure of the pressure spring 305 on the top plate 302 remains unchanged.

[0023] The top plate 302 is fixedly connected to the bottom end of the top plate 302. The top end of the base 301 is provided with a storage hole 308 corresponding to the position of the marker 309. The side of the marker 309 is provided with a scale. When the pressure spring 305 contracts, the marker 309 slides along the storage hole 308. The pressure generated by the deformation of the pressure spring 305 is determined by the scale on the marker 309.

[0024] The splicing column 304 has a rounded corner 310 at its top and a fourth through hole 311 on its side. The splicing base 102 has a second through hole 107 on its side corresponding to the fourth through hole 311. The second through hole 107 and the fourth through hole 311 are fixed by bolts. After the splicing column 304 is inserted into the splicing base 102, the bolts pass through the fourth through hole 311 and the second through hole 107 for fixing.

[0025] The support plate body 101 has a lower slot 104 and an upper slot 103 on its side. The sides of adjacent lower slots 104 and upper slots 103 engage with each other. The top of the lower slot 104 has a threaded hole 106, and the bottom of the upper slot 103 has a first through hole 105 corresponding to the position of the threaded hole 106. A fastening bolt is threaded to the inner wall of the side of the threaded hole 106. When adjacent support plate bodies 101 are spliced, the upper slot 103 on the side of one support plate body 101 is inserted into the lower slot 104 on the side of another support plate body 101, and the fastening bolt is used to fix it through the first through hole 105 and the threaded hole 106 to avoid gaps between adjacent support plate bodies 101.

[0026] The threaded shaft 203 is fixedly sleeved with a worm gear 204, and the column 201 is movably sleeved with a worm 205. The side of the worm 205 meshes with the side of the worm gear 204. The side of the worm 205 has a hexagonal groove 207, and the side of the worm 205 is threaded with a fastening nut 206. When the support mechanism 2 needs to be adjusted, loosen the fastening nut 206, insert a hexagonal wrench into the hexagonal groove 207 to rotate the worm 205. The meshing of the worm 205 and the worm gear 204 drives the threaded shaft 203 to rotate. Then, tighten the fastening nut 206 to fix the worm 205.

[0027] The working principle of this utility model is as follows: The top of the support plate body 101 is tightly attached to the top of the tunnel, and adjacent support plate bodies 101 are spliced ​​together. When splicing adjacent support plate bodies 101, the upper slot 103 on the side of one support plate body 101 is inserted into the lower slot 104 on the side of another support plate body 101, and fixed by fastening bolts passing through the first through hole 105 and the threaded hole 106; the support mechanism 2 is placed in a suitable position, and the splicing column 304 is aligned with the splicing seat 102. Bolts are fixed by passing through the fourth through hole 311 and the second through hole 107. The fastening nut 206 is loosened, and a hexagonal wrench is inserted into the hexagonal slot 207 to rotate the worm gear 205. The worm gear 205 and the worm wheel 204 mesh with each other, driving the threaded shaft 203 to rotate. The threaded telescopic column 202 moves upward along the inner wall of the column 201, causing the splicing column 304 to insert into the splicing base 102. At this time, the top plate 302 remains stationary, and the telescopic column 202 continues to push the base 301 upward, causing the pressure spring 305 to contract. The marker 309 slides along the receiving hole 308, and the pressure generated by the deformation of the pressure spring 305 is determined by the scale on the marker 309. The pressure spring 305 contracts to a certain distance, generating constant pressure on the top plate 302. The upper fixing nut 306 and the lower fixing nut 307 are tightened to fix the top plate 302 and prevent the pressure spring 305 from continuing to deform, thereby allowing the support plate mechanism 1 to support the pressure on the tunnel top at a fixed value. Then, the fixing nut 206 is tightened to fix the worm gear 205.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A detachable combined steel support for tunnel construction, comprising a support plate mechanism (1), characterized in that, Also includes: The support mechanism (2) and the pressure regulating mechanism (3) are provided. The bottom end of the support plate mechanism (1) is movably connected to the top end of the pressure regulating mechanism (3), and the bottom end of the pressure regulating mechanism (3) is fixedly connected to the top end of the support mechanism (2). The support plate mechanism (1) includes a support plate body (101), and a splicing seat (102) is fixedly connected to the bottom end of the support plate body (101). The support mechanism (2) includes a column (201), and a threaded shaft (203) is movably sleeved on the inner wall of the bottom end of the column (201). The side of (203) is threaded with a telescopic column (202). The pressure adjustment mechanism (3) includes a base (301). The bottom end of the base (301) is fixedly connected to the top end of the telescopic column (202). The top end of the base (301) is fixedly connected with a pressure spring (305). The top end of the pressure spring (305) is fixedly connected with a top plate (302). The top end of the top plate (302) is fixedly connected with a splicing column (304). The side of the splicing column (304) is movably connected to the inner side wall of the splicing seat (102).

2. The detachable combined steel support for tunnel construction according to claim 1, characterized in that: The bottom end of the top plate (302) is fixedly connected to a threaded post (303). The top end of the base (301) is provided with a fifth through hole corresponding to the position of the threaded post (303). The side of the threaded post (303) is threadedly connected to an upper fixing nut (306), and the upper fixing nut (306) is located at the top end of the base (301). The side of the threaded post (303) is threadedly connected to a lower fixing nut (307), and the lower fixing nut (307) is located at the bottom end of the base (301).

3. The detachable combined steel support for tunnel construction according to claim 1, characterized in that: The bottom end of the top plate (302) is fixedly connected to a marker (309), and the top end of the base (301) is provided with a storage hole (308) corresponding to the position of the marker (309). The side of the marker (309) is provided with a scale.

4. The detachable combined steel support for tunnel construction according to claim 1, characterized in that: The top of the splicing column (304) is provided with an arc corner (310), and the side of the splicing column (304) is provided with a fourth through hole (311). The side of the splicing seat (102) is provided with a second through hole (107) corresponding to the fourth through hole (311). The second through hole (107) and the fourth through hole (311) are fixed by bolts.

5. A detachable combined steel support for tunnel construction according to claim 1, characterized in that: The support plate body (101) has a lower slot (104) on its side and an upper slot (103) on its side. The sides of the lower slot (104) and the upper slot (103) are interlocked. The top of the lower slot (104) has a threaded hole (106). The bottom of the upper slot (103) has a first through hole (105) corresponding to the position of the threaded hole (106). The inner wall of the side of the threaded hole (106) is threaded with a fastening bolt.

6. A detachable combined steel support for tunnel construction according to claim 1, characterized in that: A worm gear (204) is fixedly sleeved on the side of the threaded shaft (203), and a worm (205) is movably sleeved on the side of the column (201). The side of the worm (205) meshes with the side of the worm gear (204). A hexagonal groove (207) is provided on the side of the worm (205), and a fastening nut (206) is threadedly connected to the side of the worm (205).

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