Assembly type telescopic top pipe cap brim protection device

Abstract

The utility model relates to the technical field of pipe jacking construction, and discloses an assembly type telescopic pipe jacking cap brim protection device which comprises a pipe jacking pipeline and a fixed section cap brim, the fixed section cap brim is installed at the position, close to the upper side, of the end of the pipe jacking pipeline, and reserved grouting holes are formed in the surface of the fixed section cap brim. According to the assembly type telescopic pipe jacking cap peak protection device, the cap peak support is telescopic and temporary, and the protection performance is good; a blade foot is arranged at the front end of the brim device, and the brim device is jacked and inserted into a soil layer needing to be excavated through a hydraulic device at the tail of the brim device before tunneling, so that a support is formed for the operation top of a tunneling face worker, and the worker is protected from being damaged by collapse and soil and stone falling in the tunneling operation period; when poor soil is met, soil reinforcement can be conducted firstly, the soil self-stability of the upper portion of the pipe-jacking tunnel face is enhanced, the pipe-jacking construction safety guarantee can be improved, and the later pipe-jacking upper portion road surface sinking risk can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipe jacking construction technical field, concretely is a kind of assembled telescopic pipe jacking hat brim protection device. BACKGROUND

[0002] With the development of city, city population increases, city volume becomes big, along with it, city drainage pipe network drainage demand is increasing day by day, drainage pipeline pipe diameter increases, city drainage pipe network reconstruction increases.During the process of city pipe network renewal, pipe jacking construction has little influence on existing road, structure and the like, and reasonable planning can not affect the use of original road, pipe network, so pipe jacking technology is used more and more in actual construction process;Support protection of driving face is particularly important in pipe jacking construction driving process, support driving face top is avoided to fall in driving construction process Topsoil is caused to construction personnel harm, and driving face top collapse in driving process is avoided, so as to prevent quality hidden trouble such as road surface subsidence, cracking and the like of pipe jacking part in later period.So set a kind of pipe jacking hat brim protection device in pipe jacking construction can protect the safety of operating personnel and guarantee construction quality. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides an assembled telescopic pipe jacking hat brim protection device, which solves the problem of avoiding pipe top collapse in the driving process to prevent quality hidden trouble such as road surface subsidence, cracking and the like of pipe jacking part in the later period.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: an assembled telescopic pipe jacking hat brim protection device, which comprises a pipe jacking pipeline and a fixed segment hat brim, the fixed segment hat brim is installed at the position of the upper side of the end of the pipe jacking pipeline, a reserved grouting hole is formed in the surface of the fixed segment hat brim, an extension cavity is formed in the left end of the fixed segment hat brim, a telescopic end hat brim is movably connected to the left end of the fixed segment hat brim through the extension cavity, a groove is formed in the right side inner wall of the extension cavity, a hydraulic jack is installed in the groove, the output end of the hydraulic jack is connected to the right end of the telescopic end hat brim, and a hat brim blade is installed at the left end position of the outer wall of the telescopic end hat brim.

[0005] Preferably, an installation clamping groove is formed in the right end of the fixed segment hat brim, the fixed segment hat brim is clamped with the pipe jacking pipeline through the installation clamping groove, a fixed bolt groove is formed in the surface of the fixed segment hat brim, and a fixed bolt for fixing the fixed segment hat brim with the pipe jacking pipeline is installed in the fixed bolt groove.

[0006] Preferably, a I-shaped reinforcing member for strengthening the strength of the support of the telescopic end hat brim by the fixed segment hat brim is installed at the position of the left end of the fixed segment hat brim and outside the extension cavity.

[0007] Preferably, the left end of the telescopic end hat brim and the hat brim blade is inclined.

[0008] Preferably, the fixed section of the hat brim is provided with a fixing bolt groove on both the inner and outer sides.

[0009] Preferably, the surface of the telescopic end of the hat brim is provided with a detection opening, and a gas detection device is installed inside the detection opening.

[0010] Compared with the prior art, the utility model provides a kind of assembled telescopic top pipe hat brim protective device, with the following beneficial effects:

[0011] 1、The telescopic top pipe hat brim protective device is convenient to install and disassemble, and has high turnover efficiency: the finished product top pipe hat brim is made according to the pipe diameter, and is made of steel structure, and the hat brim is combined and installed on site; it is easy and reliable to install, and after the construction of a section of top pipe pipeline is completed, it is disassembled and turned over to the next section of top pipe construction as support, so that the use efficiency is high.

[0012] 2、The telescopic top pipe hat brim protective device has good protection performance of hat brim support telescopic temporary support; the front end of the hat brim device has a blade foot, and before excavation, the tail hydraulic device of the hat brim device is inserted into the soil layer to be excavated, so as to form support on the top of the excavation face personnel operation, and protect the operation personnel from collapse and soil and stone falling during excavation.

[0013] 3、The telescopic top pipe hat brim protective device has small resistance in the process of pipeline jacking, and the hat brim can be retracted after being loosened; therefore, no additional resistance is caused by the existence of the front hat brim during jacking.

[0014] 4、The telescopic top pipe hat brim protective device has a reserved grouting opening at the top of the hat brim, and the soil body can be reinforced in poor soil, so as to enhance the self-stability of the top pipe face soil, improve the safety of top pipe construction, and reduce the risk of top pipe upper road subsidence.

[0015] 5、The telescopic top pipe hat brim protective device is provided with a soil and gas monitor at the front end of the hat brim device, and the hat brim is located at the front end of the top pipe excavation, and the toxic and harmful gas detector is installed on the hat brim, so as to monitor the gas in the top pipe operation environment in real time, and ensure the safety of operation environment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the utility model;

[0017] Figure 2 It is a left side structure schematic view of the utility model;

[0018] Figure 3The utility model discloses Figure 2 The structure enlarged view of A in the middle;

[0019] Figure 4 The utility model discloses a sectional view structure schematic diagram.

[0020] 1, top pipe pipeline, 2, fixed section hat brim, 21, install card slot, 22, fixed bolt slot, 23, fixed bolt, 24, H-shaped reinforcing part, 3, reserved grouting hole, 4, telescopic cavity, 5, hydraulic jack, 6, telescopic end hat brim, 7, hat brim blade foot, 8, detection opening, 9, gas detection device. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, and in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] Please refer to Figures 1-4The utility model provides a kind of assembled telescopic top pipe cap eave protection device, including top pipe pipeline 1 and fixed section cap eave 2, fixed section cap eave 2 is installed with the position of the end of top pipe pipeline 1 upper side, top pipe pipeline 1 and fixed section cap eave 2 adopt to boot type fixed, and fixed section cap eave 2's surface is equipped with reserved grouting hole 3, and hole is opened on cap eave, if loose soil is punched into small catheter from reserved grouting hole 3 and grouting is reinforced, fixed section cap eave 2's left end is equipped with telescopic cavity 4, and fixed section cap eave 2's left end is movably connected with telescopic end cap eave 6 by telescopic cavity 4, recess is equipped in the right side inner wall of telescopic cavity 4, and hydraulic jack 5 is installed in recess, and the output end of hydraulic jack 5 is installed with the right end of telescopic end cap eave 6, and the outer wall of telescopic end cap eave 6 is installed with cap eave blade foot 7 in left end position.

[0024] Further, the right end of the fixed section cap eave 2 is provided with a mounting slot 21, and the fixed section cap eave 2 is connected with the top pipe pipeline 1 through the mounting slot 21. The surface of the fixed section cap eave 2 is provided with a fixed bolt groove 22, and a fixed bolt 23 is installed in the fixed bolt groove 22 for fixing the fixed section cap eave 2 and the top pipe pipeline 1. After the fixed section cap eave 2 is sleeved on the end of the top pipe pipeline 1, the top pipe pipeline 1 and the fixed section cap eave 2 are fixed through the cooperation of the fixed bolt groove 22 and the fixed bolt 23.

[0025] Further, the left end of the fixed section cap eave 2 and the position outside the telescopic cavity 4 are provided with a H-shaped reinforcing member 24 for strengthening the strength of the telescopic end cap eave 6 supported by the fixed section cap eave 2. The strength of the contact position of the fixed section cap eave 2 and the telescopic cavity 4 is improved, and the service life is improved.

[0026] Further, the left end of the telescopic end cap eave 6 and the cap eave blade foot 7 is inclined, which improves the sharpness of the advancing end and reduces the resistance of the advancing. The soil on the advancing side is cut.

[0027] Further, the inner and outer sides of the fixed section cap eave 2 are provided with fixed bolt grooves 22, and the fixed section cap eave 2 and the top pipe pipeline 1 are fixed and installed through the cooperation of the multiple fixed bolt grooves 22 and the fixed bolts 23.

[0028] Further, the surface of the telescopic end cap eave 6 is provided with a detection opening 8, and a gas detection device 9 is installed in the detection opening 8. The air quality in the top pipe is continuously monitored at the advancing face, and the safety of the working environment is ensured.

[0029] In use, the fixed section hat brim 2 is clamped on the end of the construction pipe jacking pipe 1 by the installation clamping groove 21, and then the fixed section hat brim 2 is fixed and installed with the pipe jacking pipe 1 by the fixing bolt 23 passing through the fixing bolt groove 22, when advancing, the hydraulic jack 5 is controlled to extend, the hydraulic jack 5 pushes the telescopic end hat brim 6 to extend, the telescopic end hat brim 6 drives the hat brim blade foot 7 to extend and insert into the soil, then the grouting pipe is inserted into the reserved grouting hole 3 to grout the soil outside the fixed section hat brim 2, the soil layer strength is strengthened, collapse is prevented, while the pipe jacking pipe 1 is advanced, the telescopic end hat brim 6 is controlled to contract by the hydraulic jack 5, so that the telescopic end hat brim 6 does not advance along the soil when the pipe jacking pipe 1 advances, the process of advancing the pipe jacking pipe 1 does not cause additional resistance due to the existence of the front end hat brim, and in the process of advancing, the air after advancing is detected by the gas detection device 9, whether harmful gas exists is detected, the safety of operation is improved, and after a section of pipe jacking pipe 1 is excavated and constructed, the pipe jacking pipe 1 is disassembled and turned over to the next pipe jacking construction as support, and the use efficiency is high.

[0030] Although the embodiments of the utility model 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 these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A sectional telescopic pipe-jacking canopy protection device, comprising a pipe-jacking pipe (1) and a fixed section canopy (2), characterized in that: The fixed section hat brim (2) is installed with the end of the top pipe (1) on the upper side, the surface of the fixed section hat brim (2) is provided with a reserved grouting hole (3), the left end of the fixed section hat brim (2) is provided with an expansion cavity (4), the left end of the fixed section hat brim (2) is movably connected with an expansion end hat brim (6) through the expansion cavity (4), the right inner wall of the expansion cavity (4) is provided with a groove, and a hydraulic jack (5) is installed in the groove; the output end of the hydraulic jack (5) is connected with the right end of the expansion end hat brim (6), and the left end of the expansion end hat brim (6) is provided with a hat brim blade foot (7).

2. The assembled telescopic roof pipe hat brim protection device according to claim 1, characterized in that: The right end of the fixed section hat brim (2) is provided with a mounting clamping groove (21), and the fixed section hat brim (2) is clamped with the top pipe (1) through the mounting clamping groove (21); the surface of the fixed section hat brim (2) is provided with a fixed bolt groove (22), and the fixed bolt groove (22) is internally provided with a fixed bolt (23) for fixing the fixed section hat brim (2) and the top pipe (1).

3. The assembled telescopic roof pipe hat brim protection device according to claim 1, characterized in that: The left end of the fixed section hat brim (2) and the position outside the expansion cavity (4) are provided with a H-shaped reinforcing member (24) for strengthening the strength of the fixed section hat brim (2) supporting the expansion end hat brim (6).

4. The assembled telescopic roof pipe hat brim protection device according to claim 1, characterized in that: The left end of the expansion end hat brim (6) and the hat brim blade foot (7) is provided with an inclined shape.

5. The assembled telescopic roof pipe hat brim protection device according to claim 2, characterized in that: The inner and outer sides of the fixed section hat brim (2) are provided with fixed bolt grooves (22).

6. The assembled telescopic roof pipe hat brim protection device according to claim 1, characterized in that: The surface of the expansion end hat brim (6) is provided with a detection opening (8), and the detection opening (8) is internally provided with a gas detection device (9).

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