A mobile casing support

Abstract

This utility model discloses a movable sleeve support, installed inside the jacking pipe, for fixing multiple rows of sleeves. The support includes a rectangular frame formed by welding multiple horizontal and vertical square steel bars; at least three movable vertical square steel bars: the leftmost vertical square steel bar, the first vertical square steel bar from right to left, and the second vertical square steel bar from right to left; bolt holes are provided at the connection points between the movable vertical square steel bars and their corresponding horizontal square steel bars, and bolts are used to lock the movable vertical square steel bars through these holes; the movable vertical square steel bars can be rotated outwards around the connecting bolts to open, forming a lateral insertion channel, facilitating the complete insertion of the sleeves into the support without cutting the sleeves; after resetting, bolts are tightened to form a closed frame, avoiding the traditional segmented welding process, reducing construction costs while increasing operational flexibility, thereby improving the efficiency of sleeve insertion.

Description

Technical Field

[0001] This utility model relates to the technical field of building construction, specifically to a movable sleeve support. Background Technology

[0002] In the construction industry and municipal engineering, pipe jacking technology is widely used to meet the needs of communication and power supply without damaging existing buildings and municipal roads. This involves underground pipe jacking, through which several sleeves are run, and then cables are threaded through these sleeves to meet communication and power supply requirements between two locations. During sleeve installation, to ensure the sleeves are straight and orderly within the jacking system, a sleeve support is often installed every 1 meter or less. Traditionally, the sleeves need to be pre-inserted into the support before being pushed into the jacking system. If the jacking distance is long, it needs to be segmented. The sleeves are cut, inserted into the support, and then pushed into the jacking system, then welded to the next segment. This process is repeated until the entire sleeve section is completed. Because pipe jacking sites are generally narrow, sleeve welding is not only time-consuming and labor-intensive but also poses a significant health hazard to workers. Therefore, how to efficiently complete the sleeve installation is a problem that most construction sites need to solve. Utility Model Content

[0003] The purpose of this utility model is to solve the problems mentioned above in the background technology and to propose a movable sleeve support.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A movable sleeve support is installed inside the jacking pipe to fix multiple rows of sleeves. It includes a sleeve support, which is a rectangular frame formed by welding multiple horizontal square steel bars and multiple vertical square steel bars.

[0006] There are at least three movable vertical square steel bars, namely the leftmost vertical square steel bar, the first vertical square steel bar from right to left, and the second vertical square steel bar from right to left; bolt holes are provided at the connection points between the movable vertical square steel bars and the corresponding horizontal square steel bars, and the movable vertical square steel bars are locked by passing bolts through the bolt holes.

[0007] The round steel bar is detachably inserted into the through hole of the transverse square steel bar to form a transverse constraint on the sleeve.

[0008] As a further embodiment of this utility model: the movable vertical square steel and the horizontal square steel are connected by bolts, so that the vertical square steel can be rotated outward around the bolt as the axis to open.

[0009] As a further embodiment of this utility model: the movable vertical square steel can be rotated outward in the unlocked state to form a lateral insertion channel for the sleeve, and after resetting, it can be fastened with bolts to form a closed frame.

[0010] As a further embodiment of this utility model: after the round steel is inserted into the through hole of the transverse square steel, it cooperates with the sleeve support to clamp and fix the sleeve inserted therein, so as to prevent the sleeve from moving or deviating inside the top pipe.

[0011] As a further embodiment of this utility model: multiple through holes with a diameter of 7mm are pre-reserved along the length direction of the transverse square steel, and the diameter of the round steel is smaller than the diameter of the through holes.

[0012] As a further embodiment of this utility model, it also includes a pulley, which is fixedly installed at the bottom and side of the sleeve support for moving the sleeve support inside the top pipe.

[0013] As a further embodiment of this utility model: the cross-sectional dimensions of the square steel 5 are 30mm×30mm×2mm, and the diameter of the round steel 8 is 6.5mm.

[0014] As a further embodiment of this utility model: the frame of the sleeve support is constructed by welding square steel bars, including 3 movable vertical square steel bars and 6 fixedly connected square steel bars.

[0015] As a further aspect of this utility model, the sleeve support is adapted to the size of the plurality of sleeves.

[0016] As a further embodiment of this utility model, the inner diameter of the jacking pipe is adapted to the outer dimensions of the sleeve support.

[0017] The beneficial effects of this utility model are:

[0018] The movable vertical square steel rotates outward around the connecting bolt to open, forming a lateral insertion channel, which facilitates the overall insertion of the sleeve into the bracket without cutting the sleeve. After resetting, it is tightened with bolts to form a closed frame, avoiding the traditional segmented welding process, reducing construction costs while increasing operational flexibility, thereby improving the efficiency of sleeve insertion.

[0019] The pulley system allows the casing support to move flexibly inside the reinforced concrete jacking pipe, facilitating adjustments to the support position according to construction needs, and eliminating the need for additional equipment to assist in movement, thus further improving flexibility. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the sleeve support of this utility model;

[0023] In the diagram: 1. Sleeve; 2. Pulley; 3. Jacking pipe; 4. Sleeve support; 5. Square steel; 6. Bolt; 7. Bolt hole; 8. Round steel. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-2 As shown, this utility model is a movable sleeve support, installed inside the jacking pipe 3, used to fix multiple rows of sleeves 1; the sleeve support 4 is formed by welding multiple horizontal square steels 5 with a cross-sectional size of 30mm×30mm×2mm and multiple vertical square steels 5; there are at least three movable vertical square steels 5, namely the leftmost vertical square steel 5, the first vertical square steel 5 from right to left, and the second vertical square steel 5 from right to left; bolt holes 7 are provided at the connection between the movable vertical square steels 5 and the corresponding horizontal square steels 5, and the movable vertical square steels 5 are locked by bolts 6 passing through the bolt holes 7; round steel 8 is detachably inserted into the through holes of the horizontal square steels 5 to form a lateral constraint on the sleeve 1.

[0026] The movable vertical square steel 5 and the horizontal square steel 5 are connected by bolts 6, allowing the vertical square steel 5 to rotate outward around the bolts 6 as the axis. When unlocked, the movable vertical square steel 5 can rotate outward to open, forming a lateral insertion channel for the sleeve 1. After resetting, it is tightened by bolts 6 to form a closed frame. Multiple through holes with a diameter of 7mm are reserved along the length of the horizontal square steel 5. The diameter of the 6.5mm round steel 8 is smaller than the diameter of the through holes. Thus, after the round steel 8 passes through the through holes of the horizontal square steel 5, it cooperates with the sleeve support 4 to clamp and fix the sleeve 1 inserted therein, preventing the sleeve 1 from moving or deviating inside the top pipe 3.

[0027] It also includes pulley 2, which is fixedly installed at the bottom and side of the sleeve support 4 and is used for the sleeve support 4 to move inside the top pipe.

[0028] In this embodiment, the frame of the sleeve support 4 is welded from 9 square steel bars 5, including 3 movable vertical square steel bars 5 and 6 fixedly connected square steel bars 5. The sleeve support 4 is adapted to the size of multiple sleeves 1 to ensure that the sleeves 1 are stably fixed. The frame structure of the sleeve support 4 matches the diameter, number and arrangement of the sleeves 1, which can provide precise accommodation space for each sleeve 1 and avoid the sleeves 1 from loosening or shaking in the sleeve support 4. Through size adaptation, multiple rows of sleeves can be arranged in an orderly manner in the limited support space, avoiding the arrangement chaos or space waste caused by size mismatch, and ensuring that the sleeves are "straight and orderly" in the top pipe.

[0029] The inner diameter of the jacking pipe 3 is compatible with the outer dimensions of the casing support 4, which allows the casing support 4 to be placed smoothly inside the jacking pipe 3, and can also be moved flexibly through the pulleys 2 at the bottom and sides of the casing support 4, making it easy to adjust the position of the casing support 4 according to construction needs.

[0030] The working principle of this utility model is as follows: When using this device, the implementation method varies slightly depending on the number of sleeves 1 inside the jacking pipe 3. Here, we will use a jacking pipe 3 with an inner diameter of 1000mm and 52 sleeves 1 as an example. The operator opens the leftmost vertical square steel 5, inserts the 15 sleeves 1 in the 7 rows on the left into the sleeve support 4, and then resets the leftmost vertical square steel 5. The leftmost vertical square steel 5 is then securely fixed with bolts 6 through the bolt holes 7 on the topmost horizontal square steel 5. The operator then opens the second vertical square steel 5 from right to left, inserts the 22 sleeves 1 in the 7 rows in the middle into the sleeve support 4, and then resets the second vertical square steel 5 from right to left. The bolts 6 are used to secure the first vertical square steel 5 from right to left to the bolt holes 7 on the bottom horizontal square steel 5. The operator opens the first vertical square steel 5 from right to left and inserts the 15 sleeves 1 in 7 rows on the right side into the sleeve support 4 body. Then, the first vertical square steel 5 from right to left is reset and secured with bolts 6 through the bolt holes 7 on the first vertical square steel 5 from right to left and the second horizontal square steel 5 from bottom to top. The 22 sleeves 1 in 7 rows in the middle are evenly distributed to both sides, so that there are 11 sleeves 1 in 7 rows on each side. Then, two 6.5mm diameter round steels 8 are inserted into the through holes on the horizontal square steel 5 to fix the sleeves 1. Then, the sleeves 1 and the sleeve support 4 body are sent into the jacking pipe 3 through the pulley 2 to carry out the construction of the next sleeve support 4.

[0031] The foregoing has provided a detailed description of one embodiment of the present invention, but the description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the scope of the claims of the present invention.

Claims

1. A movable sleeve support, installed inside a jacking pipe (3), for fixing multiple rows of sleeves (1), characterized in that, include: The sleeve support (4) is a rectangular frame formed by welding multiple horizontal square steel bars (5) and multiple vertical square steel bars (5). At least three movable and vertical square steel bars (5) are provided, namely the leftmost vertical square steel bar (5), the first vertical square steel bar (5) from right to left, and the second vertical square steel bar (5) from right to left; bolt holes (7) are provided at the connection between the movable square steel bar (5) and the corresponding horizontal square steel bar (5), and the movable square steel bar (5) is locked by passing a bolt (6) through the bolt hole (7); Round steel (8) is detachably inserted into the through hole of transverse square steel (5) to form a transverse constraint on the sleeve (1).

2. The movable sleeve support according to claim 1, characterized in that, The movable vertical square steel (5) is connected to the horizontal square steel (5) by bolts (6), so that the vertical square steel (5) can be rotated outward around the bolts (6) as the axis.

3. A movable sleeve support according to claim 2, characterized in that, The movable and vertical square steel (5) can be rotated outward in the unlocked state to form a lateral insertion channel for the sleeve (1). After resetting, it is fastened by bolts (6) to form a closed frame.

4. A movable sleeve support according to claim 3, characterized in that, After the round steel (8) passes through the through hole of the transverse square steel (5), it cooperates with the sleeve support (4) to clamp and fix the sleeve (1) inside it, preventing the sleeve (1) from moving or deviating inside the top pipe (3).

5. A movable sleeve support according to claim 1, characterized in that, Multiple through holes with a diameter of 7mm are reserved along the length direction of the transverse square steel (5), and the diameter of the round steel (8) is smaller than that of the through holes.

6. A movable sleeve support according to claim 1, characterized in that, It also includes pulleys (2), which are fixedly installed at the bottom and side of the sleeve support (4) for the sleeve support (4) to move inside the top pipe.

7. A movable sleeve support according to claim 1, characterized in that, The square steel (5) has a cross-sectional dimension of 30mm×30mm×2mm, and the round steel (8) has a diameter of 6.5mm.

8. A movable sleeve support according to claim 1, characterized in that, The frame of the sleeve support (4) is constructed by welding 9 square steel bars (5), including 3 movable vertical square steel bars (5) and 6 fixedly connected square steel bars (5).

9. A movable sleeve support according to claim 1, characterized in that, The sleeve support (4) is adapted to the size of the plurality of sleeves (1).

10. A movable sleeve support according to claim 1, characterized in that, The inner diameter of the jacking pipe (3) is adapted to the outer dimensions of the sleeve support (4).

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