Subway tunnel construction support

Abstract

The utility model relates to the related technical field of tunnel construction supports, in particular to a subway tunnel construction support which comprises a fixed support, one end of the fixed support is fixedly connected with a support, the other end of the support is fixedly connected with a first connecting block, and the other end of the first connecting block is provided with a rotating mechanism. In the using process, when the support needs to be adjusted in the tunnel construction process, a nut of the first bolt can be manually loosened, then the supporting block is manually rotated to adjust the direction of the supporting block, and when the supporting block is adjusted to the proper direction, the nut of the first bolt can be tightened, so that the supporting block can be conveniently adjusted. And the two angles of the supporting block are adjusted by loosening nuts of the second bolt and the third bolt and rotating the supporting block, when the supporting block is adjusted to the two proper angles, the nuts of the second bolt and the third bolt can be tightened, the effect of fixing the angle of the supporting block is achieved, and therefore the use efficiency of the tunnel construction support is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction supports, in particular to a subway tunnel construction support. Background Art

[0002] Tunnel construction support, tunnel construction support is an important structure used to support and stabilize the tunnel surrounding rock during tunnel construction. Tunnel construction support provides support during tunnel construction to ensure the stability of the tunnel and prevent surrounding rock collapse. It is generally made of high-strength steel or other strong materials and needs to have sufficient load-bearing capacity to withstand the pressure of the surrounding rock. Therefore, a subway tunnel construction support is particularly needed.

[0003] However, the existing tunnel construction supports do not have rotating and adjusting mechanisms in their interiors during use. During the tunnel construction process, they cannot adapt to the requirements of different geological conditions and tunnel shapes, and cannot automatically adjust the angle to support the surrounding rock to prevent collapse, which increases the working time and risks of tunnel construction and may affect the personal safety of construction workers. Utility Model Content

[0004] The purpose of the present utility model is to provide a subway tunnel construction support to solve the problems of the existing tunnel construction support proposed in the above-mentioned background technology. During use, the general tunnel construction support has no rotating mechanism and adjustment mechanism inside. During the tunnel construction process, it cannot adapt to the requirements of different geological conditions and tunnel shapes, and cannot automatically adjust the angle to support the surrounding rock to prevent collapse, which increases the working time of tunnel construction and the risk of tunnel construction, and may affect the personal safety of construction workers.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a subway tunnel construction support, comprising a fixed support, one end of which is fixedly connected to a support, the other end of which is fixedly connected to a first connecting block, the other end of which is provided with a rotating mechanism, and one end of which is provided with an adjusting mechanism;

[0006] The rotating mechanism includes a first fixing block, a threaded hole, a second connecting block, a first bolt, a second bolt, a transmission block, a first through hole, a second through hole, a third bolt, a second fixing block, a reinforcing rib and a support block, one end of the first connecting block is fixedly connected to the first fixing block, one end of the surface of the first fixing block is provided with a threaded hole, one end of the surface of the first fixing block is movably abutted against the second connecting block, the first bolt is movably sleeved inside the second connecting block, one side of the second connecting block is fixedly connected to the second bolt, one side of the surface of the second bolt is penetrated and connected to the transmission block, one side of the transmission block is provided with a first through hole, the other side of the transmission block is provided with a second through hole, the surface of the first through hole is movably sleeved with the third bolt, one side of the surface of the third bolt is penetrated and connected to the second fixing block, both sides of the second fixing block are fixedly connected to the reinforcing rib, and one end of the second fixing block is fixedly connected to the support block;

[0007] The adjusting mechanism includes a sliding groove, a movable groove, a sliding block, a transmission tooth, a transmission ring, a turntable and a bearing. A sliding groove is provided on the surface of one end of the bracket, a movable groove is provided on the surface of one end of the bracket, a sliding block is provided on the surface of the sliding groove, a sliding block is slidably sleeved on the surface of the sliding groove, one side of the sliding block is fixedly connected to the transmission tooth, one side of the transmission tooth is meshedly connected to the transmission ring, the other side of the transmission ring is fixedly connected to the turntable, and one side of the bracket is fixedly connected to the bearing.

[0008] Preferably, the second connecting block is fixedly connected to the first fixing block via a first bolt, and the transmission block is fixedly connected to the second connecting block via a second bolt.

[0009] Preferably, the second fixing block is fixedly connected to the transmission block via a third bolt, and the reinforcing ribs are provided in four groups.

[0010] Preferably, the reinforcing rib is fixedly connected to the support block.

[0011] Preferably, the turntable is rotatably connected to the bracket via a bearing, and the first connecting block is slidably connected to the bracket via a sliding groove and a sliding block.

[0012] Preferably, the support block is fixedly connected to the bracket by a first bolt, a second bolt, and a third bolt.

[0013] Compared with the existing technology, the beneficial effects of the present invention are: the subway tunnel construction support is equipped with a rotating mechanism and an adjusting mechanism, which can adapt to different geological conditions and tunnel shape requirements during tunnel construction, and can automatically adjust the angle to support the surrounding rock to prevent collapse, thereby reducing the working time of tunnel construction, reducing the risk of tunnel construction, avoiding situations that may affect the personal safety of construction workers, and greatly improving the utilization efficiency of the tunnel construction support. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a side view of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the cooperation between the rotating mechanism and the adjusting mechanism of the utility model;

[0016] Figure 3 This is a schematic diagram of the rotating mechanism structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the adjustment mechanism of the present utility model.

[0018] In the figure: 1. Fixed support; 2. Bracket; 3. First connecting block; 4. Rotating mechanism; 401. First fixed block; 402. Threaded hole; 403. Second connecting block; 404. First bolt; 405. Second bolt; 406. Transmission block; 407. First through hole; 408. Second through hole; 409. Third bolt; 410. Second fixed block; 411. Reinforcing rib; 412. Support block; 5. Adjusting mechanism; 501. Sliding groove; 502. Movable groove; 503. Sliding block; 504. Transmission tooth; 505. Transmission ring; 506. Turntable; 507. Bearing. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicating orientations or positional relationships are based on the orientations 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 orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0021] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0022] See also Figure 1-4 The utility model provides a technical solution: a subway tunnel construction support, comprising a fixed support 1, one end of the fixed support 1 is fixedly connected to a support 2, the other end of the support 2 is fixedly connected to a first connecting block 3, the other end of the first connecting block 3 is provided with a rotating mechanism 4, and one end of the support 2 is provided with an adjusting mechanism 5;

[0023] The rotating mechanism 4 includes a first fixed block 401, a threaded hole 402, a second connecting block 403, a first bolt 404, a second bolt 405, a transmission block 406, a first through hole 407, a second through hole 408, a third bolt 409, a second fixed block 410, a reinforcing rib 411 and a supporting block 412. One end of the first connecting block 3 is fixedly connected to the first fixed block 401, one end of the surface of the first fixed block 401 is provided with a threaded hole 402, one end of the surface of the first fixed block 401 is movably abutted against the second connecting block 403, the interior of the second connecting block 403 is movably sleeved with the first bolt 404, one side of the second connecting block 403 is fixedly connected to the second bolt 405, one side of the surface of the second bolt 405 is penetrated and connected to the transmission block 406, one side of the transmission block 406 is provided with a first through hole 407, the other side of the transmission block 406 is provided with a second through hole 408, and the surface of the first through hole 407 is movably sleeved with the third bolt 409. There are three bolts 409, and one side of the surface of the third bolt 409 is connected to the second fixing block 410. Both sides of the second fixing block 410 are fixedly connected with reinforcing ribs 411. One end of the second fixing block 410 is fixedly connected to the support block 412. During use, when the bracket 2 needs to be adjusted during tunnel construction, the nut of the first bolt 404 can be manually loosened, and then the support block 412 can be manually rotated to adjust the direction of the support block 412. When the support block 412 is adjusted to the appropriate direction, the nut of the first bolt 404 can be tightened to fix the direction of the support block 412. Then, by loosening the nuts of the second bolt 405 and the third bolt 409, the support block 412 is rotated to adjust the two angles of the support block 412. When the support block 412 is adjusted to the two appropriate angles, the nuts of the second bolt 405 and the third bolt 409 can be tightened to fix the angle of the support block 412.

[0024] Furthermore, the second connecting block 403 is fixedly connected to the first fixed block 401 by the first bolt 404, and the transmission block 406 is fixedly connected to the second connecting block 403 by the second bolt 405. Through the arrangement of the second connecting block 403, the first bolt 404, and the first fixed block 401, the second connecting block 403 can be rotated with the first fixed block 401 when the nut of the first bolt 404 is loosened. When the second connecting block 403 is adjusted to a suitable position, the second connecting block 403 and the first fixed block 401 can be prevented from rotating by tightening the first bolt 404. Through the arrangement of the transmission block 406, the second bolt 405, and the second connecting block 403, the transmission block 406 can be rotated with the second connecting block 403 when the nut of the second bolt 405 is loosened. When the transmission block 406 is adjusted to a suitable angle, the transmission block 406 and the second connecting block 403 can be prevented from rotating by tightening the nut of the second bolt 405.

[0025] Furthermore, the second fixed block 410 is fixedly connected to the transmission block 406 by the third bolt 409, and the reinforcing ribs 411 are provided in four groups. By providing the second fixed block 410, the third bolt 409 and the transmission block 406, the second fixed block 410 can rotate with the transmission block 406 when the nut of the third bolt 409 is loosened. When the second fixed block 410 is adjusted to a suitable angle, the second fixed block 410 and the third bolt 409 can be prevented from rotating by tightening the nut of the third bolt 409. By providing four groups of reinforcing ribs 411, the four groups of reinforcing ribs 411 can better share the pressure of the surrounding rock on the support block 412, thereby extending the service life of the rotating mechanism 4.

[0026] Furthermore, the reinforcing ribs 411 are fixedly connected to the support block 412. By setting the reinforcing ribs 411 and the support block 412, the fixation between the support block 412 and the second fixing block 410 can be made more stable, which is beneficial to the support of the surrounding rock by the bracket 2 during tunnel construction.

[0027] Furthermore, the adjustment mechanism 5 includes a sliding groove 501, a movable groove 502, a sliding block 503, a transmission tooth 504, a transmission ring 505, a turntable 506 and a bearing 507. The surface of one end of the bracket 2 is provided with a sliding groove 501, the surface of one end of the bracket 2 is provided with a movable groove 502, the surface of the sliding groove 501 is slidably sleeved with a sliding block 503, one side of the sliding block 503 is fixedly connected to the transmission tooth 504, one side of the transmission tooth 504 is meshedly connected to the transmission ring 505, the other side of the transmission ring 505 is fixedly connected to the turntable 506, and one side of the bracket 2 is fixedly connected to the bearing 507. During use, when the height of the bracket 2 needs to be adjusted during tunnel construction, the turntable 506 can be manually rotated to adjust the height. 06, the rotation of the turntable 506 will drive the transmission gear 504 to move, the displacement of the transmission gear 504 will drive the sliding block 503 to move, the displacement of the sliding block 503 will drive the first connecting block 3 to move, the displacement of the first connecting block 3 will drive the rotating mechanism 4 to move, thereby achieving the effect of adjusting the height of the bracket 2. At the same time, due to the meshing effect between the transmission gear 504 and the transmission ring 505, the pressure exerted on the rotating mechanism 4 will be exerted by the transmission gear 504 on the surface of one side of the transmission ring 505 and abut against it. Because the bending angle of the transmission ring 505 itself is large, the transmission ring 505 itself will not rotate due to the pressure of the transmission gear 504, thereby achieving the effect of fixing the height of the bracket 2.

[0028] Furthermore, the turntable 506 is rotatably connected to the bracket 2 through the bearing 507, and the first connecting block 3 is slidably connected to the bracket 2 through the sliding groove 501 and the sliding block 503. Through the setting of the turntable 506, the bearing 507, and the bracket 2, the rotation of the turntable 506 can be smoother. At the same time, the bearing 507 will also bear part of the load when the bracket 2 supports the surrounding rock. Through the setting of the first connecting block 3, the sliding groove 501, the sliding block 503, and the bracket 2, the first connecting block 3 can better transfer the load when the bracket 2 supports the surrounding rock. At the same time, the sliding movement of the sliding block 503 in the sliding groove 501 can better help the bracket 2 to adjust the height.

[0029] Furthermore, the support block 412 is fixedly connected to the bracket 2 through the first bolt 404, the second bolt 405, and the third bolt 409. Through the arrangement of the support block 412, the first bolt 404, the second bolt 405, the third bolt 409, and the bracket 2, the support block 412 can control the direction with the bracket 2 through the first bolt 404, and the angle of the support block 412 with the bracket 2 through the second bolt 405, the third bolt 409, can be used to better adapt to different construction environments in tunnel construction.

[0030] Working principle: During use, when the bracket 2 needs to be adjusted during tunnel construction, the nut of the first bolt 404 can be loosened manually, and then the support block 412 can be manually rotated to adjust the direction of the support block 412. When the support block 412 is adjusted to the appropriate direction, the nut of the first bolt 404 can be tightened to fix the direction of the support block 412, and then the nuts of the second bolt 405 and the third bolt 409 can be loosened and the support block 412 can be rotated to adjust the two angles of the support block 412. When the support block 412 is adjusted to the two appropriate angles, the nuts of the second bolt 405 and the third bolt 409 can be tightened to fix the angle of the support block 412. When the height of the bracket 2 needs to be adjusted during tunnel construction, the handle of the turntable 506 can be manually rotated, and the displacement of the first connecting block 3 will drive the displacement of the rotating mechanism 4, thereby achieving the effect of adjusting the height of the bracket 2, thereby improving the use efficiency of the tunnel construction bracket.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A subway tunnel construction support, comprising a fixed support (1), characterized in that: One end of the fixed support (1) is fixedly connected to a bracket (2), the other end of the bracket (2) is fixedly connected to a first connecting block (3), the other end of the first connecting block (3) is provided with a rotating mechanism (4), and one end of the bracket (2) is provided with an adjusting mechanism (5); The rotating mechanism (4) comprises a first fixing block (401), a threaded hole (402), a second connecting block (403), a first bolt (404), a second bolt (405), a transmission block (406), a first through hole (407), a second through hole (408), a third bolt (409), a second fixing block (410), a reinforcing rib (411) and a supporting block (412); one end of the first connecting block (3) is fixedly connected to the first fixing block (401); one end of the surface of the first fixing block (401) is provided with a threaded hole (402); one end of the surface of the first fixing block (401) is movably abutted against the second connecting block (403); the interior of the second connecting block (403) is movably sleeved with the second fixing block (403); A bolt (404), one side of the second connecting block (403) is fixedly connected with a second bolt (405), one side of the surface of the second bolt (405) is penetrated and connected with a transmission block (406), one side of the transmission block (406) is provided with a first through hole (407), the other side of the transmission block (406) is provided with a second through hole (408), the surface of the first through hole (407) is movably sleeved with a third bolt (409), one side of the surface of the third bolt (409) is penetrated and connected with a second fixed block (410), both sides of the second fixed block (410) are fixedly connected with reinforcing ribs (411), and one end of the second fixed block (410) is fixedly connected with a support block (412); The adjusting mechanism (5) comprises a sliding groove (501), a movable groove (502), a sliding block (503), a transmission tooth (504), a transmission ring (505), a rotating disk (506) and a bearing (507); a sliding groove (501) is provided on the surface of one end of the bracket (2); a movable groove (502) is provided on the surface of one end of the bracket (2); a sliding block (503) is slidably sleeved on the surface of the sliding groove (501); a transmission tooth (504) is fixedly connected to one side of the sliding block (503); a transmission ring (505) is meshedly connected to one side of the transmission tooth (504); a rotating disk (506) is fixedly connected to the other side of the transmission ring (505); and a bearing (507) is fixedly connected to one side of the bracket (2).

2. A subway tunnel construction support according to claim 1, characterized in that: The second connecting block (403) is fixedly connected to the first fixing block (401) via a first bolt (404), and the transmission block (406) is fixedly connected to the second connecting block (403) via a second bolt (405).

3. The subway tunnel construction support according to claim 1, characterized in that: The second fixing block (410) is fixedly connected to the transmission block (406) via a third bolt (409), and the reinforcing ribs (411) are provided in four groups.

4. The subway tunnel construction support according to claim 1, characterized in that: The reinforcing rib (411) is fixedly connected to the supporting block (412).

5. The subway tunnel construction support according to claim 1, characterized in that: The rotating disk (506) is rotatably connected to the bracket (2) via a bearing (507), and the first connecting block (3) is slidably connected to the bracket (2) via a sliding groove (501) and a sliding block (503).

6. The subway tunnel construction support according to claim 1, characterized in that: The support block (412) is fixedly connected to the bracket (2) via a first bolt (404), a second bolt (405), and a third bolt (409).

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