Shaft protection wall device in municipal construction

Abstract

The utility model discloses a shaft wall protection device in municipal construction, which comprises a front panel, a pair of auxiliary wing plates and an anchor rod, a round hole for a hydraulic pull pipe oil cylinder to penetrate through is arranged at the central position of the front panel, and a hydraulic oil cylinder guide sleeve is fixedly sleeved in the round hole. A pair of supporting plates arranged in the radial direction of the hydraulic oil cylinder guide sleeve are fixedly installed on the outer wall of the hydraulic oil cylinder guide sleeve, and rib plates are welded to the interiors of the auxiliary wing plates so that the pressure of the auxiliary wing plates can be dispersed. Through cooperation of the front panel, the supporting plate, the hydraulic oil cylinder guide sleeve, the auxiliary wing plates and the anchor rod, the hydraulic oil cylinder guide sleeve and the front panel are welded to enable a hydraulic oil cylinder of a pull pipe to be coaxial in stress, stable operation of equipment is guaranteed, the auxiliary wing plates on the two sides are installed on the rear side of the device, the stress area can be further increased, stress can be further diffused, and the service life of the equipment is prolonged. The stress of the shaft is balanced, and damage caused by overlarge local stress is avoided.

Description

Technical Field

[0001] The utility model relates to the field of municipal construction, and specifically relates to a shaft wall protection device in municipal construction. Background Technique

[0002] In the drainage pipe network renovation project, for urban roads with narrow widths, large traffic volumes, high building and greening coverage rates on both sides of the road, the trenchless technology for replacing and repairing drainage pipes is the first preferred construction plan with low construction costs and no damage to the original road surface. In particular, the broken pipe method can not only perform the same-diameter replacement of drainage pipes, but also perform the diameter-expanding replacement, and currently this construction is relatively common.

[0003] However, in actual construction, due to the large force of hydraulic pipe jacking, most of the shafts installed for a long time will be damaged when the force is uneven, or the local force is too large, or the concentrated load is large, resulting in the collapse of the backfilled sand and soil, and seriously causing the road surface to collapse. Content of the Utility Model

[0004] The purpose of the utility model is to provide a shaft wall protection device in municipal construction, so as to solve the problem that the broken pipe method of the current trenchless drainage pipe replacement process causes shaft damage due to uneven force proposed in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A shaft wall protection device in municipal construction, including a front panel, a pair of auxiliary wing plates and anchor rods. A circular hole for the hydraulic pipe jacking oil cylinder to penetrate is opened at the central position of the front panel. A hydraulic cylinder guide sleeve is fixedly sleeved in the circular hole. A plurality of equally spaced support plates are fixedly installed on one side of the front panel close to the hydraulic cylinder guide sleeve. A pair of guard plates are welded together on the side walls of the plurality of support plates. A rib plate is welded inside the auxiliary wing plate to disperse the pressure of the auxiliary wing plate.

[0006] Preferably, the support plate is arranged in an arc structure and is consistent with the diameter of the shaft.

[0007] Preferably, the rib plate is integrally formed into an L-shaped structure.

[0008] Preferably, a jacking hole for the anchor rod to penetrate is opened at the top of the support plate.

[0009] Preferably, through holes are respectively opened at the four corner positions of the front panel.

[0010] Preferably, a plurality of pulling holes are radially arranged along the axis at the top of the anchor rod, and the bottom of the anchor rod is arranged in an inclined structure.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] Through the cooperation of the front panel, support plate, hydraulic cylinder guide sleeve, auxiliary wing plate and anchor bolt, the hydraulic cylinder guide sleeve is welded to the front panel so that the hydraulic cylinder for pipe pulling can be stressed coaxially, ensuring the stable operation of the equipment. The auxiliary wing plates on both sides are installed at the rear side of the device, which can further increase the stress area, disperse the stress, and balance the stress on the wellbore, so as not to cause damage due to excessive local stress. Brief Description of the Drawings

[0013] Figure 1 It is a schematic three-dimensional overall assembly structure diagram of the present utility model;

[0014] Figure 2 It is a schematic three-dimensional disassembled structure diagram of the present utility model;

[0015] Figure 3 It is a schematic top view plane structure diagram of the assembly of the front panel, hydraulic cylinder guide sleeve and support plate of the present utility model;

[0016] Figure 4 It is a schematic three-dimensional structure diagram of the anchor bolt of the present utility model;

[0017] Figure 5 It is a schematic rear view plane structure diagram of the assembly of the front panel and hydraulic cylinder guide sleeve of the present utility model;

[0018] Figure 6 It is a schematic three-dimensional structure diagram of the assembly of the auxiliary wing plate and rib plate of the present utility model.

[0019] In the figure: 1, front panel; 2, support plate; 3, hydraulic cylinder guide sleeve; 4, auxiliary wing plate; 5, rib plate; 6, anchor bolt; 7, through hole; 8, jack; 9, guard plate. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-6, the present utility model provides a technical solution: a shaft wall protection device in municipal construction, including a front panel 1, a pair of auxiliary wing plates 4 and anchor rods 6. Through holes 7 are respectively opened at the four corner positions of the front panel 1. The purpose of this setting is to facilitate the hoisting of the front panel 1 into the working well. A round hole for the hydraulic pipe jacking cylinder to penetrate is opened at the central position of the front panel 1. A hydraulic cylinder guide sleeve 3 is fixedly sleeved in the round hole. During the construction process, it can ensure that the hydraulic cylinder is aligned with the axis inside the pipe, the equipment is not easily damaged, and the equipment efficiency is improved. A plurality of equally spaced support plates 2 are fixedly installed on one side of the front panel 1 close to the hydraulic cylinder guide sleeve 3, and reinforcing ribs are vertically fixedly installed between the support plates 2 and the front panel 1. The advantage of this setting is to improve the stability of the support plates 2. Through the cooperation of the front panel 1, the support plates 2, the hydraulic cylinder guide sleeve 3, the auxiliary wing plates 4 and the anchor rods 6 in this application, the hydraulic cylinder guide sleeve 3 is welded to the front panel 1 so that the hydraulic cylinder for pipe jacking can be stressed coaxially, ensuring the stable operation of the equipment. The two auxiliary wing plates 4 are installed at the rear side of the device, which can further increase the stress area, disperse the stress, and balance the stress on the shaft, so as not to cause damage due to excessive local stress. The support plates 2 are arranged in an arc structure and are consistent with the diameter of the shaft. A pair of guard plates 9 are jointly welded to the side walls of the plurality of support plates 2. The purpose of this setting is to expand the contact area between the side of the support plate 2 and the shaft, and disperse the stress. A jacking hole 8 for the anchor rod 6 to penetrate is opened at the top of the support plate 2. The anchor rod 6 is a thick-walled steel pipe, and a plurality of pulling holes are radially arranged along the axis at the top of the anchor rod 6. The advantage of this setting is to facilitate the pulling out of the tied screws. The bottom of the anchor rod 6 is arranged in an inclined structure, and the sharpened bottom is convenient for entering the soil. The anchor rod piercing into the formation can stabilize the device and prevent displacement. A rib plate 5 is welded inside the auxiliary wing plate 4, and openings are provided on the side wall of the auxiliary wing plate 4 for convenient hoisting, and the rib plate 4 needs to match the inner diameter of the shaft wall. The rib plate 5 is integrally formed into an L-shaped structure to disperse the pressure of the auxiliary wing plate 4. This application is applicable to the broken pipe method of the trenchless pipe repair process. Before construction, sufficient understanding of the construction conditions should be had, such as the buried depth of the pipe, the diameter of the pipe, the bottom diameter of the shaft, the upper diameter of the shaft, the material of the pipe, the type of the shaft, the length of the construction pipe, the soil condition of the construction area, etc., and a matching shaft wall protection device should be selected. The selection of the device should be fully applicable. The chute in the working well chamber should be leveled to ensure that the front panel 1 of this device is perpendicular to the bottom panel of the working well chamber, and it should be firmly attached. A manual hoist should be set up above, and the device should be placed at the bottom of the working well by making full use of the through holes 7. The support plates 2 should be pasted firmly with the shaft wall, and the levelness should be measured with a spirit level. The auxiliary wing plates 4 are respectively placed on both sides and placed between the guard plates 9 and the cylinder wall. The pipe jacking hydraulic cylinder is placed into the hydraulic cylinder guide sleeve 3 of the device, and pressure is applied to the hydraulic cylinder to make each device fit tightly with the well wall. The device anchor rods 6 are hammered into from the two side jacking holes 8, and thus the installation of the device is completed. During the construction process, the pressure of the hydraulic cylinder should be monitored in real time. When the pressure exceeds 20 MPa, at the same time, the change of the shaft should be monitored. During the construction process, the safety of the construction personnel should be fully ensured.

[0022] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0023] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can 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 shaft wall protection device in municipal construction, characterized in that: It comprises a front panel (1), a pair of auxiliary wing panels (4) and an anchor rod (6); a circular hole for a hydraulic pipe pulling cylinder to pass through is provided at the central position of the front panel (1); a hydraulic cylinder guide sleeve (3) is fixedly sleeved in the circular hole; a plurality of equidistantly distributed support plates (2) are fixedly installed on one side of the front panel (1) close to the hydraulic cylinder guide sleeve (3); a pair of guard plates (9) are welded to the side walls of the plurality of support plates (2); and a rib plate (5) is welded inside the auxiliary wing panel (4) to disperse the pressure of the auxiliary wing panel (4).

2. A shaft wall protection device in municipal construction according to claim 1, characterized in that: The support plate (2) is configured as an arc-shaped structure and is consistent with the diameter of the wellbore.

3. A shaft wall protection device in municipal construction according to claim 1, characterized in that: The rib plate (5) is integrally formed into an L-shaped structure.

4. A shaft wall protection device in municipal construction according to claim 1, characterized in that: The top of the hydraulic cylinder support plate (2) is provided with an insertion hole (8) for the anchor rod (6) to pass through.

5. The shaft wall protection device in municipal construction according to claim 1 is characterized in that: Through holes (7) are respectively provided at the four corners of the front panel (1).

6. A shaft wall protection device in municipal construction according to claim 1, characterized in that: The top of the anchor rod (6) is provided with a plurality of pulling holes along the radial direction of the axis, and the bottom of the anchor rod (6) is provided with an inclined structure.

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