Support frame for shield tunnel

Abstract

The utility model discloses a supporting frame for a shield tunnel. The supporting frame comprises a frame (1), a dismounting assembly (3), a fixing assembly (4) and a supporting frame (5). One end of the frame (1) is detachably connected with one end of the supporting frame (5) through the dismounting assembly (3), so that the frame (1) and the supporting frame (5) are spliced into a door-shaped supporting frame matched with the channel (2) and are supported on the inner wall of the channel (2); the other end of the frame (1) is movably connected to one side of the bottom of the channel (2) through the fixing assembly (4), and the other end of the supporting frame (5) is movably connected to the other side of the bottom of the channel (2) through the fixing assembly (4). The utility model relates to the technical field of shield construction and can solve the problem that a supporting frame in the prior art is inconvenient to carry, disassemble and assemble.

Description

Technical Field

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

[0002] During shield construction of a tunnel, construction workers need to set up a support frame in the tunnel to support the tunnel passage. Due to the high strength of the support frame, a gate-shaped steel pipe frame is usually used for support. The support frame is large in size and weight, and the overall transportation of the support frame is time-consuming and laborious, requiring the cooperation of multiple construction workers.

[0003] If the support frame is disassembled as a whole before being transported, it is installed from bottom to top, and removed from top to bottom, and then moved to the next support position for re-erection. The construction efficiency is low, and the erection height is high, which poses a great safety hazard. Therefore, it is necessary to provide a support frame for shield tunnels that can solve the problem of inconvenient transportation and disassembly of the support frame in the prior art. Summary of the invention

[0004] The utility model aims to provide a support frame for a shield tunnel, which can solve the problem of inconvenient transportation and disassembly of the support frame in the prior art.

[0005] The utility model is achieved in this way:

[0006] A support frame for a shield tunnel comprises a frame, a disassembly assembly, a fixing assembly and a support frame; one end of the frame is detachably connected to one end of the support frame via the disassembly assembly, so that the frame and the support frame are spliced ​​into a support frame of a door-shaped structure matching a passage and supported on the inner wall of the passage; the other end of the frame is movably connected to one side of the bottom of the passage via the fixing assembly, and the other end of the support frame is movably connected to the other side of the bottom of the passage via the fixing assembly.

[0007] The disassembly and assembly components include an insert block, a positioning rod and a locking mechanism; a plurality of insert blocks are respectively arranged at one end of the frame, and a plurality of first slots are formed at intervals on one end of the support frame, and the plurality of insert blocks are respectively and correspondingly inserted into the plurality of slots, so that one end of the frame is inserted into one end of the support frame; a second slot that passes vertically through is formed in the insert block and the support frame, and the positioning rod is inserted into the second slot, and the lower end of the positioning rod extends to below one end of the frame and is movably connected to the locking mechanism.

[0008] The locking mechanism includes a tray, a push bar and a support plate; two positioning rods are provided in parallel, and the tray is connected between the lower ends of the two positioning rods; one end of the support plate is movably inserted into the tray, and the other end of the support plate is connected to the push bar, and the support plate is movably installed at the bottom of one end of the support frame through a guiding reset mechanism.

[0009] The guide reset mechanism includes a guide ring and a pulling spring; the support plate is annular in structure, a pair of guide rings are respectively arranged at the bottom of one end of the support frame, the guide ring is located between the push bar and the tray, and the two side edges of the support plate are respectively movable through the pair of guide rings; a connecting strip parallel to the push bar is connected between the pair of guide rings, and at least one pulling spring is vertically connected between the connecting strip and the push bar.

[0010] The fixing assembly includes a rotating nut and a threaded rod; an extension frame is formed at the other end of the frame and the other end of the support frame, and the extension frame is attached to the bottom surface of the channel; a threaded through hole is formed in the extension frame, and a threaded blind hole is formed in the bottom surface of the channel, and the threaded blind hole is connected with the threaded through hole to form a positioning hole; the rotating nut is rotatably arranged on the top of the extension frame and connected with the positioning hole, the upper part of the threaded rod is matched and screwed with the rotating nut, and the threaded rod is screwed into the positioning hole through the rotating nut.

[0011] Each group of the fixing components includes a plurality of threaded rods, and the tops of the plurality of threaded rods are connected to form an integral structure through a connecting plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model is provided with a disassembly and assembly component, so that the frame and the support frame can be efficiently disassembled and assembled, and the frame and the support frame can be stably connected to form a support frame with a door-shaped structure, providing reliable support for the channel, avoiding the inconvenience of frequent disassembly and assembly of the steel pipe support frame, and also avoiding the problem of time-consuming and labor-intensive overall transportation of the support frame. It is more convenient and flexible to use, and the disassembly and assembly process saves time and effort.

[0014] 2. The utility model is provided with a fixing component, which can fix the frame and the bottom of the support frame in the channel, connect the support frame and the channel into a whole, improve the structural stability and bearing capacity of the support frame, thereby improving the support reliability of the support frame for the channel, and the threaded rotation locking method is convenient and has high connection reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the installation of the support frame for the shield tunnel of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the support frame for the shield tunnel of the utility model (looking up);

[0017] Figure 3 This is a schematic diagram of the structure of the support frame for the shield tunnel of the utility model (from a top view);

[0018] Figure 4 yes Figure 2 The enlarged schematic diagram of point A in the middle;

[0019] Figure 5 yes Figure 3 A magnified schematic diagram of point B in the middle.

[0020] In the figure, 1 is a frame, 2 is a channel, 3 is a disassembly assembly, 31 is an insert, 32 is a positioning rod, 33 is a tray, 34 is a guide ring, 35 is a pull spring, 36 is a push bar, 37 is a support plate, 4 is a fixing assembly, 41 is a rotating nut, 42 is a positioning hole, 43 is a threaded rod, 44 is a connecting plate, 5 is a support frame, and 6 is an extension frame. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Please see attached Figure 1 To Attachment Figure 3 A support frame for a shield tunnel comprises a frame 1, a disassembly assembly 3, a fixing assembly 4 and a support frame 5; one end of the frame 1 is detachably connected to one end of the support frame 5 through the disassembly assembly 3, so that the frame 1 and the support frame 5 are spliced ​​into a support frame of a door-shaped structure matching a channel 2 and supported on the inner wall of the channel 2; the other end of the frame 1 is movably connected to one side of the bottom of the channel 2 through the fixing assembly 4, and the other end of the support frame 5 is movably connected to the other side of the bottom of the channel 2 through the fixing assembly 4.

[0023] Preferably, the frame 1 and the support frame 5 can be customized according to the size and shape of the passage 2 to ensure that the door-shaped support frame formed by splicing the frame 1 and the support frame 5 can provide stable and reliable support for the passage 2. The frame 1 and the support frame 5 are usually symmetrical structures of the same shape, and the materials of the frame 1 and the support frame 5 can be adaptively selected according to the load requirements, such as aluminum alloy plates, steel plates, etc. The frame 1 and the support frame 5 can be made into a hollow structure with a square cross-section, which ensures the structural strength of the frame 1 and the support frame 5 while reducing the dead weight, making it easy to carry and disassemble.

[0024] The disassembly assembly 3 is used to connect and disassemble one end of the frame 1 and one end of the support frame 5, making the disassembly and assembly of the support frame more convenient and quick. The fixing assembly 4 is used to fix the bottom of the frame 1 and the support frame 5 to the bottom of the channel 2, connecting the support frame and the channel 2 into a whole, and improving the supporting effect of the support frame on the channel 2.

[0025] Please see attached Figure 4 The disassembly and assembly component 3 includes an insert block 31, a positioning rod 32 and a locking mechanism; a plurality of insert blocks 31 are respectively arranged at one end of the frame 1, and a plurality of first slots (not shown in the figure) are formed at intervals on one end of the support frame 5, and a plurality of insert blocks 31 are respectively plugged into the plurality of slots, so that one end of the frame 1 is plugged into one end of the support frame 5; a second slot (not shown in the figure) that passes vertically is formed in the insert block 31 and the support frame 5, and the positioning rod 32 is plugged into the second slot, and the lower end of the positioning rod 32 extends to below one end of the frame 1 and is movably connected to the locking mechanism.

[0026] Preferably, the insert block 31 can adopt a rectangular structure, and the number of the insert blocks 31 can be adaptively adjusted according to actual use requirements. The insert blocks 31 are arranged along the axial direction of the channel 2, and a plurality of insert blocks 31 are arranged vertically at intervals, so that the support frame 5 and the frame 1 can be plugged in or disassembled by translating along the length direction of the channel 2, which saves time and effort for assembly and disassembly.

[0027] After the plug block 32 is plugged into the first slot, the plug block 32 is connected to the second slot in the support frame 5, so that the positioning rod 32 can be inserted into the second slot. The positioning rod 32 vertically passes through all the plug blocks 32 from bottom to top, thereby ensuring the locking reliability between the support frame 5 and the frame 1.

[0028] Please see attached Figure 4 The locking mechanism includes a tray 33, a push bar 36 and a support plate 37; two positioning rods 32 are provided in parallel, and the tray 33 is connected between the lower ends of the two positioning rods 32; one end of the support plate 37 is movably inserted into the tray 33, and the other end of the support plate 37 is connected to the push bar 36. The support plate 37 is movably installed at the bottom of one end of the support frame 5 through the guiding reset mechanism.

[0029] Preferably, the number of positioning rods 32 can be adaptively adjusted according to actual connection requirements, and the tray 33 is used to connect all the positioning rods 32 into a whole, so as to ensure the high efficiency of plug-in and the reliability of connection.

[0030] The tray 33 has a reserved insertion hole for the support plate 37, so that the tray 33 can be locked when the support plate 37 is inserted into the tray 33. The support plate 37 and the tray 33 are located in a horizontal plane, and the positioning rod 32 is located in a vertical plane, so that the positioning rod 32 is locked in the second slot and will not fall off, thereby ensuring the locking reliability between the support frame 5 and the frame 1. The push bar 36 is convenient for holding and pushing and pulling the support plate 37, so as to facilitate the insertion and separation of the support plate 37 and the tray 33.

[0031] Please see attached Figure 4 The guiding and resetting mechanism includes a guiding ring 34 and a pulling spring 35; the supporting plate 37 is annular in structure, and a pair of guiding rings 34 are respectively arranged at the bottom of one end of the supporting frame 5, and the guiding rings 34 are located between the pushing bar 36 and the tray 33. The two side edges of the supporting plate 37 are respectively movable through the pair of guiding rings 34; a connecting bar (not shown in the figure) parallel to the pushing bar 36 is connected between the pair of guiding rings 34, and at least one pulling spring 35 is vertically connected between the connecting bar and the pushing bar 36.

[0032] Preferably, the support plate 37 can adopt a rectangular frame structure made of square steel pipes, and the guide ring 34 can adopt a square steel pipe that is one size larger than the square steel pipe of the support plate 37, which is used to penetrate the square steel pipes on both sides of the support plate 37, so that the support plate 33 can perform horizontal pushing and pulling movements at the bottom of one end of the support frame 5 under the guidance of a pair of guide rings 34.

[0033] Preferably, the number and material of the pulling springs 35 can be adaptively selected according to actual use requirements; when the pulling springs 35 are at a natural length, the support plate 37 is inserted into the tray 33. When the push strip 36 moves in a direction away from the frame 1, and the support plate 37 is disengaged from the tray 33, the pulling spring 35 is stretched and stored. When the push strip 36 is released, the pulling spring 35 can be used to insert the support plate 37 into the tray 33 for reset, so that the splicing of the frame 1 and the support frame 5 is more convenient and efficient, and the reliability after splicing is high.

[0034] Please see attached Figure 5 The fixing assembly 4 includes a rotating nut 41 and a threaded rod 43; an extension frame 6 is formed at the other end of the frame 1 and the other end of the support frame 5, and the extension frame 6 is attached to the bottom surface of the channel 2; a threaded through hole (not shown in the figure) is formed in the extension frame 6, and a threaded blind hole is formed in the bottom surface of the channel 2, and the threaded blind hole is connected with the threaded through hole to form a positioning hole 42; the rotating nut 41 is rotatably arranged on the top of the extension frame 6 through a rotating bearing and is connected with the positioning hole 42, the upper part of the threaded rod 43 is matched and screwed with the rotating nut 41, and the threaded rod 43 is screwed into the positioning hole 42 through the rotating nut 41.

[0035] The extension frame 6 can be made according to the material and size of the frame 1 and the support frame 5, and can be integrally formed with the frame 1 and the support frame 5, and has high structural strength. The rotating nut 41 can be rotated on the extension frame 6 through the rotating bearing, and the rotation of the rotating nut 41 can be converted into the axial linear motion of the threaded rod 43 by the transmission of the thread, so that the threaded rod 43 is screwed to the extension frame 6 and the frame 1 / support frame 5 through the positioning hole 42, ensuring the fixing effect of the frame 1 and the support frame 5 in the channel 2.

[0036] Please see attached Figure 5 Each group of the fixing components 4 includes a plurality of threaded rods 43 , and the tops of the plurality of threaded rods 43 are connected to form an integral structure through a connecting plate 44 .

[0037] Preferably, two threaded rods 43 may be provided, which are connected into an integral structure via a connecting plate 44 , and the two threaded rods 43 can be tightened synchronously by rotating the two rotating nuts 41 at the same time, thereby ensuring the fixing reliability and high efficiency.

[0038] Please see attached Figure 1 To Attachment Figure 5 , the installation and disassembly method of the utility model is:

[0039] The frame 1 and the support frame 5 are customized according to the size and shape of the channel 2 , transported to the channel 2 to be supported, and attached to both sides of the inner wall of the channel 2 , respectively.

[0040] One end of the frame 1 is plugged into the first slot at one end of the support frame 5 through the plug block 31, and the push bar 36 is pulled to drive the support plate 37 to move away from the frame 1. At this time, the pull spring 36 is stretched and stored. Hold the tray 33 and insert the two positioning rods 32 into the second slots of the plug block 31 and the support frame 5, lock the frame 1 and the support frame 5, release the push bar 36, and drive the support plate 37 to move back to the direction of the frame 1 under the elastic force of the pull spring 36, and insert the support plate 37 into the reserved slot of the tray 33, which can prevent the two positioning rods 32 from falling out of the frame 1 and the support frame 5.

[0041] The frame 1 and the support frame 5 form a support frame of the door-shaped structure and are matched and supported in the channel 2. Hold the connecting plate 44 and insert a plurality of threaded rods 43 into the rotating nut 41, rotate the rotating nut 41, screw the threaded rods 43 downward into the positioning holes 42 under the transmission action of the threads, and lock the extension frame 6 and the bottom surface of the channel 2 through the thread bite, so as to ensure that the support frame of the door-shaped structure is fixedly supported in the channel 2.

[0042] When disassembling, first rotate the rotating nut 41 in the opposite direction to screw the threaded rod 43 upward out of the positioning hole 42 to release the lock between the extension frame 6 and the channel 2. Then pull the push bar 36 to make the support plate 37 come out of the tray 33, pull the tray 33 downward to drive the positioning rod 32 to come out of the second slot, and then the frame 1 and the support frame 5 can be separated.

[0043] The disassembly process is opposite to the installation process, which will not be described in detail here. After disassembly, the frame 1 and the support frame 5 are moved to the next support position, and spliced ​​by the disassembly assembly 3 and fixed by the fixing assembly 4.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A support frame for a shield tunnel, characterized by: The invention comprises a frame (1), a disassembly assembly (3), a fixing assembly (4) and a support frame (5); one end of the frame (1) is detachably connected to one end of the support frame (5) via the disassembly assembly (3), so that the frame (1) and the support frame (5) are spliced ​​into a support frame of a door-shaped structure matching a channel (2) and supported on the inner wall of the channel (2); the other end of the frame (1) is movably connected to one side of the bottom of the channel (2) via the fixing assembly (4), and the other end of the support frame (5) is movably connected to the other side of the bottom of the channel (2) via the fixing assembly (4).

2. The shield tunnel support frame according to claim 1 is characterized in that: The disassembly assembly (3) comprises an insert block (31), a positioning rod (32) and a locking mechanism; a plurality of insert blocks (31) are arranged at intervals at one end of the frame (1); a plurality of first slots are formed at intervals on one end of the support frame (5); the plurality of insert blocks (31) are respectively and correspondingly inserted into the plurality of slots, so that one end of the frame (1) is inserted into one end of the support frame (5); a second slot that passes vertically through is formed in the insert block (31) and the support frame (5); the positioning rod (32) is inserted into the second slot; the lower end of the positioning rod (32) extends to below one end of the frame (1) and is movably connected to the locking mechanism.

3. The shield tunnel support frame according to claim 2 is characterized in that: The locking mechanism comprises a tray (33), a push bar (36) and a support plate (37); two positioning rods (32) are arranged in parallel, and the tray (33) is connected between the lower ends of the two positioning rods (32); one end of the support plate (37) is movably inserted into the tray (33), and the other end of the support plate (37) is connected to the push bar (36); the support plate (37) is movably installed at the bottom of one end of the support frame (5) through a guiding reset mechanism.

4. The shield tunnel support frame according to claim 3 is characterized in that: The guiding and resetting mechanism comprises a guiding ring (34) and a pulling spring (35); the supporting plate (37) is annular in structure, a pair of guiding rings (34) are respectively arranged at the bottom of one end of the supporting frame (5), the guiding rings (34) are located between the pushing bar (36) and the tray (33), and the two side edges of the supporting plate (37) are respectively movable through the pair of guiding rings (34); a connecting bar parallel to the pushing bar (36) is connected between the pair of guiding rings (34), and at least one pulling spring (35) is vertically connected between the connecting bar and the pushing bar (36).

5. The shield tunnel support frame according to claim 1 is characterized in that: The fixing assembly (4) comprises a rotating nut (41) and a threaded rod (43); an extension frame (6) is formed at the other end of the frame (1) and the other end of the support frame (5), and the extension frame (6) is attached to the bottom surface of the channel (2); a threaded through hole is formed in the extension frame (6), and a threaded blind hole is formed in the bottom surface of the channel (2), and the threaded blind hole is connected with the threaded through hole to form a positioning hole (42); the rotating nut (41) is rotatably arranged on the top of the extension frame (6) and is connected with the positioning hole (42), the upper part of the threaded rod (43) is matched and screwed with the rotating nut (41), and the threaded rod (43) is screwed into the positioning hole (42) through the rotating nut (41).

6. The shield tunnel support frame according to claim 5 is characterized in that: Each group of the fixing components (4) comprises a plurality of threaded rods (43), and the tops of the plurality of threaded rods (43) are connected to form an integral structure via a connecting plate (44).

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