Arch-shaped framework precast block

Abstract

The utility model provides an arch-shaped framework precast block which comprises precast block bodies, embedded bolts are embedded in the precast block bodies, the arch-shaped framework precast block further comprises connecting pieces used for connecting the adjacent precast block bodies, and the precast block bodies are provided with grooves for the connecting pieces to slide in. The connecting piece is provided with a through hole for the embedded bolt to penetrate through, the embedded bolt is in threaded connection with a nut, and the nut abuts against the connecting piece. The device is convenient to operate, the precast blocks are connected through the bolts, the connection mode is firm and reliable, disassembly and repeated use are convenient, the precast blocks are allowed to be finely adjusted to a certain degree through bolt connection so as to adapt to different terrains and construction requirements, only simple assembly needs to be conducted on site through the bolt connection mode, and the construction efficiency is improved. And assembly and disassembly can be rapidly carried out, and the construction period is greatly shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel construction technical field, concretely relates to an arch skeleton prefabricated block. BACKGROUND

[0002] The traditional arch skeleton prefabricated block is a common structure form in civil engineering, especially in highway, railway and river slope protection engineering. It is mainly composed of prefabricated concrete blocks, which are arranged in a specific arch structure to provide stability and protection for the slope. During long-term use, due to natural environmental factors (such as rainfall, temperature change, mountain sliding, etc.) and vibration and impact generated by train operation, problems such as loosening, cracking and even falling off may occur, which not only affects the protection effect, but also may pose a threat to the safe operation of high-speed trains. At present, the railway arch skeleton protection mostly adopts cast-in-place structure, which is more stable than the prefabricated block structure, but the construction needs a large number of formwork and mechanical equipment, the progress is slow, and it is not suitable for tunnel slope repair and construction. SUMMARY

[0003] In order to solve the problems existing in the prior art, an arch skeleton prefabricated block is provided. The device is easy to operate, the prefabricated blocks are connected by bolts, this connection method is not only firm and reliable, but also convenient to disassemble and reuse, the bolt connection also allows the prefabricated blocks to be adjusted to a certain extent to adapt to different terrains and construction requirements, the bolt connection method only needs simple assembly on site, and can be quickly assembled and disassembled, greatly shortening the construction period.

[0004] The technical scheme adopted by the utility model to solve its technical problems is:

[0005] The utility model provides an arch skeleton prefabricated block, including prefabricated block main part, pre-buried bolt is pre-buried in the prefabricated block main part, and it also includes connecting piece for the connection of adjacent prefabricated block main parts, the prefabricated block main part is provided with the recess for the sliding of connecting piece, the connecting piece is provided with the through hole for the passing of pre-buried bolt, the pre-buried bolt is threadedly connected with the nut, and the nut abuts on the connecting piece.

[0006] Preferably, the thread inner diameter of the nut is smaller than the hole diameter of the through hole.

[0007] Preferably, the connecting piece is slidably connected with the horizontal direction movement of the locking pin, and the prefabricated block main part is provided with the card hole for the sliding of the locking pin.

[0008] Preferably, the locking pin is sleeved with the spring, one end of the spring is connected with the locking pin, the other end of the spring is connected with the connecting piece, and the elastic force of the spring can make the locking pin move out of the card hole.

[0009] Preferably, the connecting piece is slidably connected with a vertical rod moving in a vertical direction, the pin is fixedly connected with a conical head matched with the vertical rod, the side of the vertical rod close to the conical head is a slope, and the vertical rod is arranged above the conical head.

[0010] Preferably, the vertical rod is sleeved with a compression spring, the upper end of the compression spring is connected with the vertical rod, and the lower end of the compression spring is connected with the connecting piece; the elastic force of the compression spring can leave a gap between the vertical rod and the conical head.

[0011] Preferably, the nut is provided with a plurality of through holes, and further comprises a special piece, the special piece is fixedly connected with a fixing rod which can be slid into the through hole.

[0012] Preferably, the nut is further provided with a plurality of clamping grooves, the clamping grooves are communicated with the through holes, and the upper end of the vertical rod is fixedly connected with a clamping block which can be slid into the clamping groove.

[0013] Preferably, when the clamping block at the upper end of the vertical rod slides into the clamping groove, the vertical rod can drive the pin to slide into the clamping hole through the conical head.

[0014] Preferably, a gasket is arranged between the nut and the connecting piece, the gasket is provided with a through hole for the embedded bolt to pass through and a through hole for the vertical rod to pass through.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The connecting piece is arranged, the prefabricated blocks are connected through bolts, the connecting mode is not only firm and reliable, but also convenient to disassemble and reuse, the bolt connection also allows the prefabricated blocks to be finely adjusted to a certain extent, so as to adapt to different terrains and construction requirements.

[0017] 2. The bolt connection mode can effectively improve the construction efficiency, the prefabricated blocks are connected through bolts, so that the prefabricated blocks can be quickly assembled and disassembled, the construction period is greatly shortened, meanwhile, the arch-shaped skeleton prefabricated blocks can be produced in a factory mode, and only simple assembly is needed on site, so that the construction efficiency is further improved.

[0018] 3. The connecting piece is arranged, the structure stability can be enhanced, the structure of the arch-shaped skeleton prefabricated block is reasonable, pressure can be effectively dispersed and borne, and the stability of the overall structure is improved, especially in soil protection engineering, the influence caused by natural disasters such as water and soil loss can be reduced.

[0019] 4. The connecting piece is arranged, the adaptability is high, the novel bolt connection arch-shaped skeleton prefabricated block can be customized according to different terrains and construction requirements, so that the adaptability is high, and the prefabricated block can be used for construction in more construction scenes.

[0020] 5. The connecting piece of the utility model, compared with traditional building materials, the new bolt connection arch skeleton prefabricated block is more environmentally friendly and economical, the prefabricated block can be reused, reduces the generation of construction waste, at the same time, due to high construction efficiency, short construction period, also reduces the labor cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0022] Figure 1 is the overall front view of the utility model;

[0023] Figure 2 is Figure 1 A-A part structure schematic diagram (example one) in the middle;

[0024] Figure 3 is Figure 1 A-A part structure schematic diagram (example two) in the middle;

[0025] Figure 4 is Figure 1 A-A part structure schematic diagram (working state of example two) in the middle;

[0026] Figure 5 is Figure 3 A-A part structure schematic diagram in the middle;

[0027] Figure 6 is Figure 3 Gasket structure schematic diagram in the middle.

[0028] Explanation of the drawings:

[0029] 1 prefabricated block main body;2 recess;3 buckle plate;4 embedded bolt;5 nut;6 connecting piece;7 through hole;8 clamping groove;9 vertical rod;10 gasket;11 clamping hole;12 clamping pin;13 via hole;14 special piece;15 fixed rod;16 through hole;17 spring;18 conical head;19 compression spring;20 guide rod. DETAILED DESCRIPTION

[0030] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0031] Example one

[0032] As Figures 1-2As shown, the embodiment proposes an arch type skeleton prefabricated block, which comprises a prefabricated block body 1, a pre-embedded bolt 4 is pre-embedded in the prefabricated block body 1, the pre-embedded bolt 4 is directly poured into the prefabricated block body 1 when pouring the prefabricated block body 1, the prefabricated block body 1 is provided with a groove 2, the pre-embedded bolt 4 comprises an inclined section and a vertical section, wherein the inclined section is directly embedded in the prefabricated block body 1, and the upper end of the vertical section is located in the groove 2, thereby facilitating the connection of adjacent prefabricated block bodies 1.

[0033] It also comprises a connecting piece 6 for connecting adjacent prefabricated block bodies 1, the size of the connecting piece 6 is matched with the groove 2, the connecting piece 6 can slide into the groove 2, and further comprises a buckling plate 3, the buckling plate 3 can be buckled above the groove 2, so that the upper surface of the buckling plate 3 and the upper surface of the prefabricated block body 1 form a complete plane, thereby protecting the components in the groove 2.

[0034] The connecting piece 6 is provided with a through hole 16 for the pre-embedded bolt 4 to pass through, the pre-embedded bolt 4 is threadedly connected with a nut 5, and the thread inner diameter of the nut 5 is smaller than the hole diameter of the through hole 16. By tightening the nut 5, the nut 5 abuts against the connecting piece 6, and the connection of adjacent prefabricated block bodies 1 is realized through the connecting piece 6, and two prefabricated block bodies 1 are respectively matched with a nut 5, so that the fixing of the connecting piece 6 is better realized through the nut 5.

[0035] A gasket 10 is arranged between the nut 5 and the connecting piece 6, the gasket 10 is provided with a through hole 16 for the pre-embedded bolt 4 to pass through, and the gasket 10 is sleeved on the pre-embedded bolt 4 before the nut 5 is tightened, so that the pre-embedded bolt 4 can freely pass through the through hole 16, and then the nut 5 is installed. The gasket 10 can increase the contact area, reduce the pressure, prevent loosening, protect the surface of the workpiece, and reduce the stress concentration.

[0036] Embodiment two

[0037] Reference to the drawings Figures 3-6 The other structures are the same as those of embodiment one, and the difference lies in that, in the embodiment, the fixing problem of the connecting piece is considered.

[0038] The connecting piece 6 is slidably connected with a horizontally moving locking pin 12, the prefabricated block body 1 is provided with a clamping hole 11 for the locking pin 12 to slide into, one connecting piece 6 is provided with two locking pins 12, and the two locking pins 12 are respectively matched with two adjacent prefabricated block bodies 1, so that the connecting piece 6 can be better matched in the groove 2, and the problem that the connecting piece 6 cannot be better matched with the groove 2 due to the slot error of the groove 2 is reduced.

[0039] The spring 17 is sleeved on the pin 12, one end of the spring 17 is connected with the pin 12, the other end of the spring 17 is connected with the connecting piece 6, the elastic force of the spring 17 can move the pin 12 out of the pin hole 11, the elastic force of the spring 17 can make the pin 12 be located in the connecting piece 6 in the initial state, and the connecting piece 6 is conveniently put into the groove 2.

[0040] The vertical rod 9 moving in the vertical direction is slidably connected with the connecting piece 6, the tapered head 18 matched with the vertical rod 9 is fixedly connected with the pin 12, the side close to the tapered head 18 of the vertical rod 9 is a slope, the vertical rod 9 is arranged above the tapered head 18, and the tapered head 18 is arranged, so that the vertical rod 9 can better drive the pin 12 to move horizontally when the vertical rod 9 moves downward.

[0041] The compression spring 19 is sleeved on the vertical rod 9, the upper end of the compression spring 19 is connected with the vertical rod 9, the lower end of the compression spring 19 is connected with the connecting piece 6, the elastic force of the compression spring 19 can leave a gap between the vertical rod 9 and the tapered head 18, so that the vertical rod 9 is prevented from driving the pin 12 to move in the initial state, and the upper end of the vertical rod 9 is arranged to pass through the connecting piece 6 in the initial state under the action of the compression spring 19.

[0042] The nut 5 is provided with a plurality of through holes 7, and further comprises a special piece 14, the special piece 14 is fixedly connected with a fixing rod 15 capable of sliding into the through hole 7, when the nut 5 is tightened, the fixing rod 15 of the special piece 14 is inserted into the through hole 7, at this time, the special piece 14 can drive the nut 5 to rotate when the special piece 14 rotates, so that the installation of the nut 5 is facilitated.

[0043] The nut 5 is also provided with a plurality of clamping grooves 8, the clamping grooves 8 are communicated with the through holes 7, the upper end of the vertical rod 9 is fixedly connected with a clamping block capable of sliding into the clamping groove 8, the aperture of the clamping groove 8 is larger than the aperture of the through hole 7, the through hole 7 is provided with a plurality of through holes, when the nut 5 is tightened, the vertical rod 9 can be aligned with one of the clamping grooves 8, at this time, when the special piece 14 is pulled out, the compression spring 19 can drive the clamping block of the vertical rod 9 to slide into the clamping groove 8, so that the cooperation of the nut 5 and the vertical rod 9 is realized, and the nut 5 is better limited.

[0044] When the clamping block at the upper end of the vertical rod 9 slides into the clamping groove 8, the vertical rod 9 can drive the pin 12 to slide into the pin hole 11 through the tapered head 18, so that the connection between the connecting piece 6 and the prefabricated block body 1 is realized.

[0045] The gasket 10 is arranged between the nut 5 and the connecting piece 6, the gasket 10 is provided with a through hole 16 for the embedded bolt 4 to pass through and a via hole 13 for the vertical rod 9 to pass through.

[0046] The specific working process is as follows: after the adjacent prefabricated block bodies 1 are closed together, the connecting piece 6 is placed in the groove 2 formed by the adjacent prefabricated block bodies 1, then the gasket 10 is placed on the connecting piece 6, at this time the vertical rod 9 passes through the through hole 13, the embedded bolt 4 passes through the through hole 16, then the nut 5 is screwed on the embedded bolt 4, the fixing rod 15 of the special piece 14 is inserted into the through hole 7, the nut 5 is rotated by the special piece 14, and the nut 5 is screwed and abuts against the connecting piece 6, at this time the vertical rod 9 is opposite to the through hole 7, then the special piece 14 is pulled out, the clamping block of the vertical rod 9 is driven by the compression spring 19 and slides into the clamping groove 8, the cooperation of the nut 5 and the vertical rod 9 is realized, and the connecting piece 6 and the prefabricated block body 1 are connected by the vertical rod 9 which is driven by the tapered head 18 and the clamping pin 12 which slides into the clamping hole 11, so that the connecting piece 6 and the prefabricated block body 1 are connected.

[0047] The connecting piece 6 is arranged, the prefabricated blocks are connected through bolts, the connection mode is firm and reliable, and the prefabricated blocks are convenient to disassemble and reuse, and the bolt connection also allows the prefabricated blocks to be adjusted to a certain extent, so that different terrains and construction requirements can be adapted.

[0048] The construction efficiency can be effectively improved, the prefabricated blocks are connected through bolts, so that the prefabricated blocks can be quickly assembled and disassembled, the construction period is greatly shortened, and the arched skeleton prefabricated blocks can be produced in a factory mode, so that only simple assembly needs to be performed on site, and the construction efficiency is further improved.

[0049] The structural stability can be enhanced, the arched skeleton prefabricated block has a reasonable structural design, can effectively disperse and bear pressure, and improves the stability of the overall structure, and in particular in soil protection engineering, the influence of natural disasters such as water and soil loss can be reduced.

[0050] The adaptability is high, the novel bolt connection arched skeleton prefabricated block can be customized according to different terrains and construction requirements, and therefore has high adaptability and can be used in more construction scenes.

[0051] The novel bolt connection arched skeleton prefabricated block is more environmentally friendly and economical than traditional building materials, the prefabricated blocks can be reused, the generation of construction waste is reduced, and the labor cost is also reduced due to high construction efficiency and short construction period.

[0052] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. An arched skeleton precast block comprising a precast block body (1), characterized in that, The precast block body (1) is embedded with embedded bolts (4), and further comprises connecting pieces (6) for connecting adjacent precast block bodies (1), the precast block body (1) is provided with grooves (2) for sliding the connecting pieces (6) into, the connecting pieces (6) are provided with through holes (16) for the embedded bolts (4) to pass through, the embedded bolts (4) are threadedly connected with nuts (5), and the nuts (5) abut against the connecting pieces (6).

2. An arch skeleton precast block according to claim 1, wherein The thread inner diameter of the nut (5) is smaller than the hole diameter of the through hole (16).

3. The arched skeleton precast block according to claim 1, wherein, The connecting pieces (6) are slidingly connected with horizontal direction moving locking pins (12), and the precast block body (1) is provided with locking holes (11) for sliding the locking pins (12) into.

4. An arch skeleton precast block according to claim 3, wherein The locking pins (12) are sleeved with springs (17), one end of the springs (17) is connected with the locking pins (12), the other end of the springs (17) is connected with the connecting pieces (6), and the elastic force of the springs (17) can make the locking pins (12) move out of the locking holes (11).

5. An arch skeleton precast block according to claim 3, wherein The connecting pieces (6) are slidingly connected with vertical direction moving vertical rods (9), the locking pins (12) are fixedly connected with conical heads (18) matched with the vertical rods (9), one side of the vertical rods (9) close to the conical heads (18) is a slope, and the vertical rods (9) are arranged above the conical heads (18).

6. An arch skeleton precast block according to claim 5, wherein The vertical rods (9) are sleeved with compression springs (19), the upper ends of the compression springs (19) are connected with the vertical rods (9), the lower ends of the compression springs (19) are connected with the connecting pieces (6), and the elastic force of the compression springs (19) can leave a gap between the vertical rods (9) and the conical heads (18).

7. An arch skeleton precast block according to claim 5, wherein The nuts (5) are provided with a plurality of through holes (7), and further comprise special pieces (14) fixedly connected with fixing rods (15) capable of sliding into the through holes (7).

8. An arch skeleton precast block according to claim 7, wherein The nuts (5) are further provided with a plurality of clamping grooves (8), the clamping grooves (8) are connected with the through holes (7), and the upper ends of the vertical rods (9) are fixedly connected with clamping blocks capable of sliding into the clamping grooves (8).

9. An arch skeleton precast block according to claim 8, wherein When the clamping blocks at the upper ends of the vertical rods (9) slide into the clamping grooves (8), the vertical rods (9) can drive the locking pins (12) to slide into the locking holes (11) through the conical heads (18).

10. The arched skeleton precast block according to claim 5, wherein, The nuts (5) and the connecting pieces (6) are provided with gaskets (10), the gaskets (10) are provided with through holes (16) for the embedded bolts (4) to pass through and via holes (13) for the vertical rods (9) to pass through.

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