Movable tunnel segment supporting frame for subway construction

Abstract

The invention discloses a subway construction movable tunnel segment supporting frame which comprises a tunnel, segments are laid on the inner wall of the tunnel, the subway construction movable tunnel segment supporting frame further comprises a supporting piece, the supporting piece comprises a top supporting arc plate and a side supporting arc plate, first hinge seats are fixedly connected to the two ends of the top supporting arc plate, and first hinge grooves are formed in the side supporting arc plate; the first hinge seat is in running fit with the first hinge groove, and two groups of supporting vertical rods are symmetrically and fixedly connected to the lower surface of the top supporting arc plate; the telescopic adjusting mechanism is used for connecting the supporting vertical rod and the side edge supporting arc plate; a hydraulic rod is fixedly connected to the upper face of the support. Through cooperation of the top supporting arc plate and the side edge supporting arc plate, the duct piece can be effectively supported, extension and contraction of the side edge supporting arc plate are achieved by adjusting the length of the telescopic adjusting mechanism, the hydraulic rod controls the top supporting arc plate to move up and down, the duct piece can be rapidly supported, and meanwhile disassembly is very convenient and fast.

Description

TECHNICAL FIELD

[0001] The present application relates to a support frame, in particular to a mobile tunnel segment support frame for subway construction. BACKGROUND

[0002] Iron shield tunnel construction refers to using a shield machine to control the collapse of the excavation face and the surrounding soil while tunneling and discharging slag. When the shield machine advances in the ground, the surrounding soil is supported by the shield shell and the segments. The shield segment is the main assembly component of shield construction and the innermost barrier of the tunnel, which resists soil pressure, groundwater pressure and some special loads. The shield segment needs to be supported and shaped by a support frame.

[0003] A subway tunnel segment roundness-keeping support frame disclosed in Chinese Patent Publication No. CN220645967U includes a plurality of support frame units, which are erected in parallel in the tunnel segment. The support frame unit includes a first cross beam and two first support columns. The first cross beam is fixedly connected above the tunnel segment opening, and the two first support columns are fixedly connected symmetrically and perpendicularly below the first cross beam. First reinforcing rods are arranged on both sides of the connection between the first cross beam and the first support columns. A plurality of support short columns are fixedly connected symmetrically above the first cross beam, and the ends of the support short columns away from the first cross beam abut against the inner wall of the top end of the tunnel segment. Second reinforcing rods are arranged on the inner sides of the bottom ends of the two first support columns. The support frame has good roundness-keeping stability, simple structure, less steel consumption, convenient installation, low cost, and can improve construction efficiency. It causes less damage to the inner wall of the tunnel segment and does not affect the erection of the trolley for transporting construction materials, which facilitates construction. However, the device has the following problems: The device needs to transport components into the tunnel in advance, and the components need to be assembled and installed in the tunnel. The installation, transportation and disassembly in the tunnel are not convenient, the welding amount is large, and it is time-consuming and labor-intensive. SUMMARY

[0004] The present application aims to provide a mobile tunnel segment support frame for subway construction to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a mobile tunnel segment support frame for subway construction, comprising a tunnel, the inner wall of which is paved with segments, and further comprising: a support member, which comprises a top support arc plate and a side support arc plate, both ends of the top support arc plate are fixedly connected with first hinge seats, a first hinge groove is formed in the upper surface of the side support arc plate, the first hinge seats and the first hinge groove are rotationally connected, and two groups of support vertical rods are fixedly connected symmetrically on the lower surface of the top support arc plate; a telescopic adjusting mechanism, which is used to connect the support vertical rods and the side support arc plate; Support, the support is fixed with hydraulic rod on the upper surface, the upper end of the hydraulic rod is fixed with top support arc plate, the lower surface of the support is fixed with connecting plate symmetrically, the lower surface of the connecting plate is fixed with support leg symmetrically, the support leg is rotatably installed with support wheel.

[0006] Preferably, the support vertical rod is provided with a through hole at the lower end, the side edge support arc plate is fixed with connecting plug rod symmetrically on the upper surface, and the connecting plug rod is inserted into the through hole.

[0007] Preferably, the side edge support arc plate is provided with avoiding groove on the front and rear surface, and the avoiding groove is matched with the support leg.

[0008] Preferably, the telescopic adjusting mechanism comprises threaded rod and threaded sleeve, the threaded rod is threadedly installed in the threaded sleeve, one end of the threaded rod is fixed with rotating seat, and the other end of the threaded sleeve is rotatably installed with hinged joint.

[0009] Preferably, the rotating seat is rotatably installed on the hinged cross rod between one side one group of support vertical rods, the side edge support arc plate is fixed with hinged lug on the inner wall, and the hinged lug is rotatably connected with the hinged joint.

[0010] Preferably, the threaded sleeve is fixed with nut on the outer wall.

[0011] Compared with the prior art, the present application has the following beneficial effects: 1. The pipe piece can be effectively supported by the cooperation of the top support arc plate and the side edge support arc plate, the extension and contraction of the side edge support arc plate can be realized by adjusting the length of the telescopic adjusting mechanism, the top support arc plate can be moved up and down by the hydraulic rod, the pipe piece can be quickly supported, and the device can be conveniently disassembled.

[0012] 2. The support is in inverted U shape as a whole, the middle part is not provided with other components and is in blank state, so as to facilitate the passing of material car or personnel.

[0013] 3. When the top support arc plate and the side edge support arc plate are not in contact with the pipe piece, the device can be directly pushed to move in the support vertical rod by the support wheel, so as to facilitate the transportation or adjustment of the position of the device. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structure schematic view of the present application; Figure 2 It is the overall structure schematic view of the present application in use; Figure 3 It is the support explosion view of the present application; Figure 4 It is the telescopic adjusting mechanism explosion view of the present application; Figure 5A schematic view of a support structure of the present application.

[0015] In the figure: 1, support vertical rod; 101, hinged horizontal rod; 2, support; 201, top support arc plate; 202, side support arc plate; 203, first hinged seat; 204, first hinged groove; 205, hinged lug; 206, avoiding groove; 3, telescopic adjusting mechanism; 301, threaded rod; 302, threaded sleeve; 303, rotating seat; 304, hinge joint; 305, nut; 4, support; 401, hydraulic rod; 402, connecting plate; 403, support leg; 404, support wheel; 405, connecting plug rod; 9, tunnel; 901, pipe piece. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0017] As Figures 1-5 shown, the present application has the following specific embodiments.

[0018] Embodiment 1 A mobile tunnel pipe piece support frame for subway construction, comprising a tunnel 9, an inner wall of the tunnel 9 being paved with pipe pieces 901, and further comprising: a support 2, the support 2 comprising a top support arc plate 201 and a side support arc plate 202, the top support arc plate 201 being fixedly connected with first hinged seats 203 at both ends, the side support arc plate 202 being provided with first hinged grooves 204 on the upper surface, the first hinged seats 203 and the first hinged grooves 204 being rotationally matched, and the top support arc plate 201 being fixedly connected with two groups of support vertical rods 1 symmetrically on the lower surface; a telescopic adjusting mechanism 3, the telescopic adjusting mechanism 3 being used for connecting the support vertical rods 1 and the side support arc plate 202; a support 4, the support 4 being fixedly connected with a hydraulic rod 401 on the upper surface, the hydraulic rod 401 being fixedly connected with the top support arc plate 201 at the upper end, the support 4 being fixedly connected with connecting plates 402 symmetrically on the lower surface, the connecting plates 402 being fixedly connected with support legs 403 symmetrically and forwardly and rearwardly on the lower surface, and the support legs 403 being rotationally installed with support wheels 404 on the upper surface.

[0019] In the embodiment, the support 4, the connecting plate 402, the supporting leg 403 and the supporting wheel 404 form a stable frame, and the supporting wheel 404 facilitates the sliding of the frame on the ground. The first hinge seat 203 is in rotational cooperation with the first hinge groove 204, and the side support arc plate 202 can be rotatably installed below the top support arc plate 201 at the two end positions. The telescopic adjusting mechanism 3 is hingedly installed between the supporting vertical rod 1 and the side support arc plate 202. By reducing the overall length of the telescopic adjusting mechanism 3, the lower edge of the side support arc plate 202 can be rotated inward, so that the side support arc plate 202 is separated from the segment 901. Then, the hydraulic rod 401 is activated to drive the top support arc plate 201 to move downward, so that the top support arc plate 201 is separated from the segment 901, and the contact between the support 2 and the segment 901 is released. At this time, the device can be directly pushed to move inside the tunnel 9. When supporting the segment inside the tunnel, the above steps are reversed to effectively support the segment 901 inside the tunnel. Compared with the existing device, the device is convenient and fast to install and disassemble. The support 4 is in an inverted U shape, and the middle part is in a blank area, which is convenient for the passage of a material car or personnel.

[0020] Embodiment 2 The supporting vertical rod 1 is provided with a through hole at the lower end, and the side support arc plate 202 is symmetrically and fixedly connected with a connecting plug rod 405 on the upper surface. The connecting plug rod 405 is inserted into the through hole. The side support arc plate 202 is provided with an avoiding groove 206 on the front and rear surfaces.

[0021] In the embodiment, the connecting plug rod 405 and the through hole can be used to slidably connect the supporting vertical rod 1 and the inner frame together. When the hydraulic rod 401 drives the top support arc plate 201 to move downward, the supporting vertical rod 1 will be synchronously driven to move downward. The connecting plug rod 405 will be further inserted into the through hole at the lower end of the supporting vertical rod 1. The avoiding groove 206 and the supporting leg 403 cooperate with each other. During the inward rotation of the lower edge of the side support arc plate 202, the supporting leg 403 will interfere with the side support arc plate 202. The avoiding groove 206 avoids the contact between the side support arc plate 202 and the supporting leg 403, so as to avoid the interference with the inward rotation of the side support arc plate 202.

[0022] Embodiment 3 The telescopic adjusting mechanism 3 comprises a threaded rod 301 and a threaded sleeve 302. The threaded rod 301 is threadedly installed in the threaded sleeve 302. One end of the threaded rod 301 is fixedly connected with a rotating seat 303. The other end of the threaded sleeve 302 is rotatably installed with a hinge joint 304. A hinge cross rod 101 is fixedly connected between one group of supporting vertical rods 1. The rotating seat 303 is rotatably installed on the hinge cross rod 101. A hinge lug 205 is fixedly connected to the inner wall of the side support arc plate 202. The hinge lug 205 is rotatably connected with the hinge joint 304. The outer wall of the threaded sleeve 302 is fixedly connected with a nut 305.

[0023] In the embodiment, the threaded rod 301 is rotatably connected with the articulated cross bar 101 through the rotating seat 303, the articulated joint 304 is rotatably connected with the articulated lug 205, the threaded sleeve 302 is rotatably connected with the side support arc plate 202, the telescopic adjusting mechanism 3 is articulated between the articulated cross bar 101 and the side support arc plate 202, the nut 305 is used to rotate the threaded sleeve 302, the rotation of the threaded sleeve 302 can adjust the overall length of the telescopic adjusting mechanism 3, thereby controlling the rotation of the side support arc plate 202, and the side support arc plate 202 is turned inward.

[0024] The working principle and use process of the present application are as follows: when in use, the device can be directly pushed to move inside the support vertical rod 1, and after the device is moved to the position to be supported, the hydraulic rod 401 is first started to drive the top support arc plate 201 to move upward, so that the top support arc plate 201 is pressed and fitted to the top pipe piece 901 in the tunnel 9, then the nut 305 is manually rotated by using a wrench or the like to rotate the threaded sleeve 302, the telescopic adjusting mechanism 3 is elongated to drive the side support arc plate 202 to expand outward, so that the side support arc plate 202 is fitted and abuts against the pipe piece 901 on both sides of the tunnel 9, thereby realizing the supporting action of the pipe piece 901 in the tunnel 9, and the whole device is difficult to move inside the tunnel 9 under the action of friction.

[0025] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A mobile tunnel segment support frame for subway construction, comprising a tunnel (9), wherein the inner wall of the tunnel (9) is laid with tunnel segments (901), characterized in that, Also includes: Support member (2), the support member (2) includes a top support arc plate (201) and a side support arc plate (202). The top support arc plate (201) has a first hinge seat (203) fixed at both ends. The side support arc plate (202) has a first hinge groove (204) on its surface. The first hinge seat (203) and the first hinge groove (204) are rotatably engaged. Two sets of support vertical rods (1) are symmetrically fixed at the bottom of the top support arc plate (201). Telescopic adjustment mechanism (3), the telescopic adjustment mechanism (3) is used to connect the support vertical rod (1) and the side support arc plate (202); The bracket (4) has a hydraulic rod (401) fixedly connected to its upper end. The upper end of the hydraulic rod (401) is fixedly connected to the top support arc plate (201). A connecting plate (402) is symmetrically fixedly connected to the lower part of the bracket (4). Support legs (403) are symmetrically fixedly connected to the lower part of the connecting plate (402). Support wheels (404) are rotatably installed on the support legs (403).

2. The mobile tunnel segment support frame for subway construction according to claim 1, characterized in that: The lower end of the support rod (1) has a through hole, and the side support arc plate (202) is symmetrically fixed with connecting rods (405), which are inserted into the through hole.

3. The mobile tunnel segment support frame for subway construction according to claim 1, characterized in that: The side support arc plate (202) has clearance grooves (206) on both the front and back, and the clearance grooves (206) cooperate with the support leg (403).

4. The mobile tunnel segment support frame for subway construction according to claim 1, characterized in that: The telescopic adjustment mechanism (3) includes a threaded rod (301) and a threaded sleeve (302). The threaded rod (301) is threadedly installed inside the threaded sleeve (302). One end of the threaded rod (301) is fixedly connected to a rotating seat (303), and the other end of the threaded sleeve (302) is rotatably installed with a hinge joint (304).

5. A mobile tunnel segment support frame for subway construction according to claim 4, characterized in that: A hinged crossbar (101) is fixedly connected between a group of supporting vertical rods (1) on one side. The rotating seat (303) is rotatably mounted on the hinged crossbar (101). A hinge ear (205) is fixedly connected to the inner wall of the side supporting arc plate (202). The hinge ear (205) is rotatably connected to the hinge joint (304).

6. A mobile tunnel segment support frame for subway construction according to claim 4, characterized in that: A nut (305) is fixed to the outer wall of the threaded sleeve (302).

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