CN215596561U - Adjustable prefabricated back wall for pipe jacking construction - Google Patents
Adjustable prefabricated back wall for pipe jacking construction Download PDFInfo
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- CN215596561U CN215596561U CN202121738291.6U CN202121738291U CN215596561U CN 215596561 U CN215596561 U CN 215596561U CN 202121738291 U CN202121738291 U CN 202121738291U CN 215596561 U CN215596561 U CN 215596561U
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- back wall
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- pipe jacking
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Abstract
The utility model discloses an adjustable prefabricated back wall for pipe jacking construction, which comprises a back wall main body (1), a lifting ring (2) and a leveling component (3); the back wall main body (1) is of a plane plate-shaped structure, and the plurality of hanging rings (2) are symmetrically arranged at the top of the back wall main body (1) respectively; one end of each of the leveling assemblies (3) is connected to one end face of the back wall main body (1) at intervals, and the other end of each of the leveling assemblies (3) abuts against the inside of the pipe jacking foundation pit, so that the back wall main body (1) is vertically arranged in the pipe jacking foundation pit. The utility model can provide the back wall which is stably and vertically arranged, and is convenient for pipe-jacking construction.
Description
Technical Field
The utility model relates to a back wall structure, in particular to an adjustable prefabricated back wall for pipe jacking construction.
Background
At present, underground pipe gallery and large-diameter pipe jacking construction are more and more popularized along with the accelerated development of urban infrastructure construction. A back wall support jack is needed during pipe jacking construction, and the back wall plays a key supporting role in the jacking process of the jacking pipe. The back wall in the prior art is in a cast-in-place concrete form, the construction of the back wall needs reinforcement binding, formwork erecting, concrete pouring and the like, and the working procedures are complicated. If complex environmental factors such as narrow, the soft, high water level of soil property of push pipe foundation ditch size meet, the construction quality of pouring of back wall is difficult to guarantee, can't guarantee the vertical straight of contact surface of back wall and jack, leads to the push pipe to push into the in-process and appear the deviation. Meanwhile, after the construction of the jacking pipe is finished, the concrete of the back wall needs to be broken, and resources are wasted.
Disclosure of Invention
The utility model aims to provide an adjustable prefabricated back wall for pipe jacking construction, which can provide a stable and vertically arranged back wall and is convenient for pipe jacking construction.
The utility model is realized by the following steps:
an adjustable prefabricated back wall for pipe jacking construction comprises a back wall main body, a lifting ring and a leveling assembly; the back wall main body is of a plane plate-shaped structure, and the plurality of lifting rings are symmetrically arranged at the top of the back wall main body respectively; one end of each of the leveling assemblies is connected to one end face of the back wall main body at intervals, and the other end of each of the leveling assemblies abuts against the inside of the pipe jacking foundation pit, so that the back wall main body is vertically arranged in the pipe jacking foundation pit.
Each group of leveling assemblies comprises two telescopic screws, a connecting piece, a telescopic sleeve and a back-up bracket; one end of one of the telescopic screw rods is connected with one end of the connecting piece, and the other end of the connecting piece is fixedly arranged on the back wall main body; one end of the other telescopic screw rod is connected with one end of the back-jacking bracket, and the other end of the back-jacking bracket is abutted against the inside of the pipe jacking foundation pit; the other ends of the two telescopic screws are respectively coaxially inserted into the telescopic sleeve and are screwed with the telescopic sleeve.
One of the telescopic screw rods is rotatably connected with the connecting piece through a hinge piece, and the other telescopic screw rod is rotatably connected with the back-up bracket through the hinge piece.
The screw thread spiral directions of the two telescopic screw rods are opposite.
The back-up bracket is of a plane plate-shaped structure.
The leveling assemblies are symmetrically arranged on two side parts of the back wall main body.
Compared with the prior art, the utility model has the following beneficial effects:
1. the leveling component is arranged, so that the vertical setting angle of the back wall main body can be adjusted through the rotation of the threads, the adjusting mode is simple and rapid, the precision is high, stable and reliable support is guaranteed to be provided for a jack, the levelness of the jacking pipe is guaranteed, and the construction quality and efficiency of the jacking pipe are guaranteed.
2. The hanging ring is arranged, so that the hanging ring is convenient to hoist and mount, the turnover use of the back wall main body is convenient, and the construction cost is reduced.
3. The back wall main body made of the steel plate can be prefabricated in a factory, complex processes of reinforcement binding, formwork supporting, pouring and the like of cast-in-place concrete are avoided, the construction process is simplified, inconvenience and resource waste of concrete removal after pipe jacking are avoided, various construction environments and construction spaces can be adapted, and the construction cost is further reduced.
Drawings
FIG. 1 is a front view of an adjustable prefabricated rear back wall for pipe jacking construction according to the present invention;
FIG. 2 is a side view of the adjustable prefabricated rear back wall for pipe jacking construction of the present invention;
FIG. 3 is a side view of the leveling assembly in the adjustable prefabricated back wall for pipe jacking construction according to the present invention.
In the figure, 1 a back wall body, 2 lifting rings, 3 leveling components, 31 telescopic screws, 32 connecting pieces, 33 telescopic sleeves, 34 a back support bracket and 35 articulated pieces.
Detailed Description
The utility model is further described with reference to the following figures and specific examples.
Referring to fig. 1 and 2, an adjustable prefabricated back wall for pipe jacking construction comprises a back wall main body 1, a lifting ring 2 and a leveling component 3; the back wall main body 1 is of a plane plate-shaped structure, and the plurality of hanging rings 2 are symmetrically arranged at the top of the back wall main body 1 respectively; one end of each of the leveling assemblies 3 is connected to one end face of the back wall main body 1 at intervals, and the other end of each of the leveling assemblies 3 abuts against the inside of the pipe jacking foundation pit, so that the back wall main body 1 is vertically arranged in the pipe jacking foundation pit. Back wall main part 1 can adopt corrosion resistant plate to make, has avoided the inconvenience of construction processes such as cast-in-place concrete reinforcement ligature, formwork, pouring, can install back wall main part 1 through hoist through rings 2, the handling and the installation of being convenient for, the turnover of back wall main part 1 of also being convenient for is used, and can adapt to the narrow and small environment in construction space. The angle of the back wall main body 1 can be adjusted through the leveling component 3, the vertical straight arrangement of the back wall main body 1 is kept, the jack can be stably supported, and therefore the pipe jacking operation can be efficiently and high-quality completed.
Referring to fig. 3, each leveling assembly 3 includes two telescopic screws 31, a connecting member 32, a telescopic sleeve 33, and a back-up bracket 34; one end of one of the telescopic screw rods 31 is connected with one end of the connecting piece 32, and the other end of the connecting piece 32 is fixedly arranged on the back wall main body 1; one end of the other telescopic screw 31 is connected with one end of the back-jacking bracket 34, and the other end of the back-jacking bracket 34 is abutted against the inside of the pipe-jacking foundation pit; the other ends of the two telescopic screws 31 are respectively inserted into the telescopic sleeves 33 coaxially and screwed with the telescopic sleeves 33. The length of the leveling component 3 can be adjusted by screwing the two telescopic screws 31 and the telescopic sleeves 33, and the vertical position of the back wall body 1 can be adjusted by adjusting the lengths of a plurality of groups of leveling components 3 arranged at different positions.
One of the telescopic screws 31 is rotatably connected with the connecting piece 32 through a hinge 35, and the other telescopic screw 31 is rotatably connected with the back-up bracket 34 through the hinge 35. Through the setting of articulated elements 35, can realize that telescopic screw 31 and back wall main part 1, telescopic screw 31 and the back bracket 34 between 0-180 rotate, reach more accurate, more nimble regulation effect, ensure back wall main part 1 quick adjustment to vertical straight position.
The screw thread directions of the two telescopic screws 31 are opposite. Under the lease of screw thread, convert the rotation of telescopic sleeve 33 into the linear motion of two telescopic screw 31, when the telescopic sleeve 33 was rotated to the forward, two telescopic screw 31 kept away from each other under the screw thread rotating propulsion, when the telescopic sleeve 33 was rotated to the reverse direction, two telescopic screw 31 were close to each other under the screw thread rotating propulsion to realize flexible regulation. Due to mutual meshing of the threads, the self-locking mechanism has a good self-locking function, and can ensure the supporting stability of the leveling component 3 between the back jacking bracket 34 and the back wall main body 1.
The back-jacking bracket 34 is of a plane plate-shaped structure, has large contact area and high back-jacking stability, and ensures effective support of the jack.
The leveling assemblies 3 are symmetrically arranged at two side parts of the back wall main body 1, are easy to adjust and are uniformly stressed.
The using method of the utility model is as follows:
the hoisting equipment is connected with the hoisting rings 2, and the back wall main body 1 is hoisted to the rear lower part of the design position of the back wall and into the pipe jacking foundation pit. The back wall body 1 is kept at a vertical straight position, the telescopic sleeve 33 of each group of leveling assemblies 3 is rotated, when the telescopic sleeve 33 is rotated in the forward direction, the two telescopic screw rods 31 are mutually far away under the propelling of screw rotation, and when the telescopic sleeve 33 is rotated in the reverse direction, the two telescopic screw rods 31 are mutually close under the propelling of screw rotation, so that the telescopic adjustment of the leveling assemblies 3 is realized. After the adjustment is completed, the back supporting bracket 34 of each group of leveling assemblies 3 stably supports against the inner wall of the pipe jacking foundation pit or other supporting surfaces, and the back wall main body 1 is always kept at a vertical straight position, so that a jack is stably and reliably supported, the jack is assisted to complete pipe jacking operation, and the construction quality of the pipe jacking operation is ensured.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a back wall after prefabrication with adjustable pipe jacking construction, characterized by: comprises a back wall main body (1), a lifting ring (2) and a leveling component (3); the back wall main body (1) is of a plane plate-shaped structure, and the plurality of hanging rings (2) are symmetrically arranged at the top of the back wall main body (1) respectively; one end of each of the leveling assemblies (3) is connected to one end face of the back wall main body (1) at intervals, and the other end of each of the leveling assemblies (3) abuts against the inside of the pipe jacking foundation pit, so that the back wall main body (1) is vertically arranged in the pipe jacking foundation pit.
2. The adjustable prefabricated rear back wall for pipe jacking construction according to claim 1, wherein: each group of leveling assemblies (3) comprises two telescopic screw rods (31), a connecting piece (32), a telescopic sleeve (33) and a back-up bracket (34); one end of one telescopic screw rod (31) is connected with one end of a connecting piece (32), and the other end of the connecting piece (32) is fixedly arranged on the back wall main body (1); one end of the other telescopic screw rod (31) is connected with one end of the back-jacking bracket (34), and the other end of the back-jacking bracket (34) is abutted against the inside of the pipe-jacking foundation pit; the other ends of the two telescopic screws (31) are respectively inserted into the telescopic sleeve (33) coaxially and are screwed with the telescopic sleeve (33) in a threaded manner.
3. The adjustable prefabricated rear back wall for pipe jacking construction according to claim 2, wherein: one of the telescopic screw rods (31) is rotatably connected with the connecting piece (32) through a hinge piece (35), and the other telescopic screw rod (31) is rotatably connected with the back-up bracket (34) through the hinge piece (35).
4. The adjustable prefabricated rear back wall for pipe jacking construction according to claim 2 or 3, wherein: the screw thread spiral directions of the two telescopic screw rods (31) are opposite.
5. The adjustable prefabricated rear back wall for pipe jacking construction according to claim 2, wherein: the back-up bracket (34) is of a plane plate-shaped structure.
6. The adjustable prefabricated rear back wall for pipe jacking construction according to claim 1, wherein: the leveling assemblies (3) are symmetrically arranged at two side parts of the back wall main body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121738291.6U CN215596561U (en) | 2021-07-28 | 2021-07-28 | Adjustable prefabricated back wall for pipe jacking construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121738291.6U CN215596561U (en) | 2021-07-28 | 2021-07-28 | Adjustable prefabricated back wall for pipe jacking construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215596561U true CN215596561U (en) | 2022-01-21 |
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ID=79879389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121738291.6U Active CN215596561U (en) | 2021-07-28 | 2021-07-28 | Adjustable prefabricated back wall for pipe jacking construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215596561U (en) |
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2021
- 2021-07-28 CN CN202121738291.6U patent/CN215596561U/en active Active
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