A protective tube for excavating foundation

Abstract

The present invention relates to the field of excavated foundations, and in particular to a protective cylinder for excavated foundations. The protective cylinder for excavated foundations comprises a cylinder body and a fastening belt. The cylinder body is formed by bending a guard plate, and the left and right ends of the guard plate partially overlap. The upper and lower sides of the guard plate are provided with a plug-in structure, and the plug-in structure is used to realize the upper and lower plug-in of at least two protective cylinders for excavated foundations. The fastening belt is used to clamp the cylinder body. The cylinder body is provided with a fixing bolt, and the fastening belt is fixed to the cylinder body. The fastening belt is provided with a fixing hole for the fixing bolt to pass through. There are multiple fixing holes or the fixing holes are long holes. By adjusting the position of the fastening belt and the fixing bolt, the length of the overlapping part is changed to achieve the adjustment of the diameter of the protective cylinder. The protective cylinder for excavated foundations of the present invention is relatively simple to use, can improve the overall construction efficiency, and the protective cylinder can be reused, which can effectively reduce the cost of construction.

Description

Technical Field

[0001] The invention relates to the field of excavated foundations, in particular to a protective tube for excavated foundations. Background Art

[0002] During the construction of power transmission and transformation projects, it is necessary to build towers for erecting transmission lines. Before building the towers, the tower bases need to be excavated, which involves excavation of foundations. During today's excavation and foundation construction, workers need to pour reinforced concrete in the excavated pits. During the pouring process, mud wall materials need to be applied on the side walls of the pits to reinforce the side walls and prevent falling rocks and collapse from injuring workers. However, the process of applying mud wall materials is relatively cumbersome and inefficient.

[0003] A Chinese utility model patent with authorization announcement number CN201574396U discloses a wall protection device for an excavated foundation. The wall protection device is a hollow cylindrical body formed by bonding a steel mesh and concrete surrounding the steel mesh, and the outer diameter of the hollow cylindrical body matches the pre-designed excavated foundation shape. When the wall protection device is formed, it needs to be formed in sections on the pit wall of the excavated pit, which is complicated to operate and has low efficiency. In addition, the wall protection device cannot be reused and has high cost. Summary of the Invention

[0004] The purpose of the present invention is to provide a protective tube for excavated foundations, so as to solve the problems of complicated process and high cost when reinforcing the side walls of pits during existing excavated foundation construction operations.

[0005] To achieve the above-mentioned purpose, the technical solution provided by the protective tube for excavating foundation of the present invention is:

[0006] The protective tube for excavated foundation includes a tube body and a fastening belt, the tube body is surrounded by a bent guard plate, and the left and right ends of the guard plate partially overlap; a plug-in structure is provided on the upper and lower sides of the guard plate, and the plug-in structure is used to realize the upper and lower plug-in of at least two protective tubes for excavated foundation; the fastening belt is used to clamp the tube body; one end of the guard plate is a fixed end, and the other end is an adjustable end. After the guard plate is bent, the fixed end is located on the outside of the adjustable end; the fixed end of the guard plate is provided with a fixing bolt, and the fastening belt includes a movable adjusting section that can be separated from the adjusting end and can freely extend to the outside of the fixed end to be fixed with the fixing bolt, and one end of the movable adjusting section The end is fixedly connected to the adjustment end, and a fixing hole for a fixing bolt to pass through is provided on the movable adjusting section, and a fastening nut for fixing the fastening belt after the fixing bolt passes through the fixing hole is provided on the fixing bolt. A plurality of fixing holes are arranged in the length direction of the fastening belt, and the length of the overlapping part is changed by changing the coordination between the fixing hole and the fixing bolt to adjust the diameter of the protective tube, or the fixing hole is a long hole extending along the length direction of the fastening belt, and the length of the overlapping part is changed by changing the position of the fixing bolt in the long hole along the length direction of the fastening belt to adjust the diameter of the protective tube.

[0007] The beneficial effect is that the protective tube for excavated foundation of the present invention can adjust the length of the overlapping part of the guard plate according to the diameter of the pit, so as to adjust the diameter of the protective tube and enable the protective tube to adapt to pits of different diameters. When adjusting the diameter of the protective tube, it is necessary to pass the fixing bolt through the fixing hole and tighten the fastening nut to fix the diameter of the protective tube. When using the protective tube for excavated foundation of the present invention, the diameter of the protective tube is first adjusted according to the diameter of the pit, and then the protective tube is hoisted into the pit. The protective tubes can be plugged up and down by the plug-in structure provided on the guard plate to adapt to pits of different depths. When workers construct in the protective tube, the occurrence of falling rocks and collapse in the pit that injure workers can be reduced. After the workers finish their construction, the protective tubes are hoisted out of the pit. The use process of the protective tube for excavated foundation of the present invention is relatively simple, which can improve the overall construction efficiency. The protective tube can be reused, which can effectively reduce the cost of construction.

[0008] Furthermore, the cylinder is fixed with fixing bolts by welding.

[0009] Beneficial effect: The fixing bolts are welded to the cylinder body, and the fixing bolts are not easy to be lost.

[0010] Furthermore, the fastening belt extends from the adjustment end to the fixed end of the guard plate, and the fastening belt is fixed to the fixed end before the guard plate is bent into a cylinder.

[0011] Beneficial effect: The fastening belt is arranged in this way so that the fastening belt can serve as a reinforcing rib to improve the strength of the guard plate.

[0012] Furthermore, the fastening belt is welded and fixed to the fixed end before the guard plate is bent into the cylinder.

[0013] Beneficial effects: welding is easy to operate and has high efficiency.

[0014] Furthermore, one end of the movable adjustment section is welded and fixed to the cylinder.

[0015] Beneficial effects: welding is easy to operate and has high efficiency.

[0016] Furthermore, the plug-in structure includes a pin and a socket, the pin is arranged on the upper side of the guard plate, and the socket is arranged on the lower side of the guard plate, or the pin is arranged on the lower side of the guard plate, and the socket is arranged on the upper side of the guard plate; the adjacent excavated foundation protective tubes are connected up and down through the pin and the socket.

[0017] Beneficial effects: The plug-and-pin connection structure is simple in structure and convenient for connecting the upper and lower parts of each protective tube.

[0018] Furthermore, a fixing frame is provided on the guard plate, and the fixing frame and the guard plate form the insertion hole.

[0019] Beneficial effect: the jack adopts this structural form, which is relatively simple to process.

[0020] Furthermore, the latch is arranged on the upper side of the guard plate, and the socket is arranged on the lower side of the guard plate.

[0021] Beneficial effect: When the latch is set on the lower side of the guard plate, the latch will contact the bottom of the pit, causing the protective tube at the bottom of the pit to tilt. The arrangement of setting the latch on the upper side of the guard plate can reduce the occurrence of the above situation.

[0022] Furthermore, at least two fastening belts are provided, and the fastening belts are spaced apart and arranged on the cylinder body.

[0023] Beneficial effect: This arrangement enables the tightening effect of the fastening belt on the cylinder to be better.

[0024] Furthermore, a plurality of plugs are provided, and the sockets correspond to the plugs one by one.

[0025] Beneficial effect: multiple pins and sockets are provided, which can improve the firmness of the connection between the protective tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of Example 1 of a protective tube for excavating a foundation according to the present invention;

[0027] Figure 2 This is a schematic diagram of each protective tube in Example 1 of the protective tube for excavated foundation of the present invention when plugged in up and down;

[0028] Figure 3 yes Figure 2 A top view of

[0029] Figure 4Schematic diagram of the deployment of the guard plate and the fastening belt in Example 1 of the protective tube for excavated foundation of the present invention;

[0030] Figure 5 yes Figure 4 A bottom-up view of

[0031] Figure 6 yes Figure 4 side view.

[0032] Explanation of the accompanying symbols: 1. Protective cylinder; 2. Cylinder body; 3. Fastening belt; 301. Movable adjustment section; 4. Guard plate; 401. Fixed end; 402. Adjustment end; 5. Overlapping part; 6. Fixing hole; 601. Long hole; 7. Plug-in structure; 701. Pin; 702. Plug hole; 8. Fixing frame; 9. Fixing bolt; 10. Bolt through hole. DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely intended to represent selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0035] It should be noted that, in the specific embodiments of the present invention, terms such as "first" and "second" and other relational terms that may appear are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of such an actual relationship or order between these entities or operations. Moreover, terms such as "include", "comprise" or any other variants thereof that may appear are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device. In the absence of further restrictions, the phrase "including a ..." or other defined elements that may appear does not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0036] In the description of the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," and "connected" should be interpreted broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] In the description of the present invention, unless otherwise expressly specified or limited, the terms "provided with" and "provided with" should be understood broadly. For example, the object "provided with" may be a part of the main body, or may be arranged separately from the main body and connected to the main body. The connection may be detachable or non-detachable. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0038] The present invention is described in further detail below with reference to the examples.

[0039] Example 1 of the protective tube for excavating foundation provided in the present invention:

[0040] The structure of the protective tube 1 for digging the foundation is as follows Figures 1 to 6 As shown, during the construction of a power transmission and transformation project, before erecting the iron towers for laying the transmission lines, the tower base needs to be constructed. This involves excavation of the foundation. During the excavation of the foundation, workers need to pour reinforced concrete in the excavated pit. The excavation foundation protection tube 1 can enclose the workers within the protection tube 1 to reduce the risk of falling rocks and collapsing in the pit and injuring the workers.

[0041] The protective tube 1 for an excavated foundation comprises a tube body 2 and a fastening band 3 for enclosing the tube body 2. The tube body 2 is formed by a curved protective plate 4, with the left and right ends of the protective plate 4 partially overlapping. The diameter of the protective tube 1 can be adjusted by adjusting the length of the overlapping portion 5 of the tube body 2 to accommodate pits of varying diameters. In this embodiment, the protective plate 4 is made of steel plate. In other embodiments, the protective plate can be made of other metal materials with moderate plasticity and rigidity, or non-metallic materials that meet the required performance requirements.

[0042] like Figure 4As shown, the left end of the guard plate 4 is a fixed end 401, and the right end is an adjustable end 402. After the guard plate 4 is bent, the fixed end 401 is located outside the adjustable end 402. The fixed end 401 of the guard plate 4 is provided with a fixing bolt 9, which is welded to the cylinder 2. The fastening band 3 includes a movable adjustment section 301 that is separate from the adjustable end 402 and can freely extend to the outside of the fixed end 401 to be fixed with the fixing bolt 9. The left end of the movable adjustment section 301 is welded to the adjustable end 402 of the guard plate 4. The movable adjustment section 301 is provided with a fixing hole 6 for the fixing bolt 9 to pass through. The fixing bolt 9 is provided with a fastening nut for securing the fastening band 3 after the fixing bolt 9 passes through the fixing hole 6. In this embodiment, the fixing hole 6 is an elongated hole 601 extending along the length of the fastening band 3. By changing the position of the fixing bolt 9 in the elongated hole 601 along the length of the fastening band 3, the length of the overlapping portion 5 is changed to achieve adjustment of the diameter of the protective cylinder 1.

[0043] It should be noted that the movable adjustment section 301 of the fastening belt 3 is welded and fixed to the guard plate 4 before the guard plate 4 is bent into the cylinder 2. The welding fixation method is easy to operate and has high efficiency.

[0044] In this embodiment, the fastening strap 3 extends from the adjustment end 402 to the fixed end 401 of the guard plate 4. This arrangement allows the fastening strap 3 to serve as a reinforcing rib, thereby increasing the strength of the guard plate 4. In addition, a bolt through-hole 10 is provided at the left end of the fastening strap 3 for the fixing bolt 9 to pass through.

[0045] More specifically, scales showing the diameter of the protective tube 1 are provided at the long hole 601 of the fastening belt 3 and the overlapping portion 5 of the guard plate 4. This arrangement enables the guard plate 4 to be more conveniently and efficiently enclosed into a protective tube 1 suitable for the diameter of the pothole.

[0046] To accommodate pits of varying depths in foundation engineering excavations, each protective tube 1 can be connected vertically using a plug-in structure 7 provided on the guard plate 4. The plug-in structure 7 includes a latch 701 and a socket 702. A fixing frame 8 is provided on the guard plate 4, and the fixing frame 8 and the guard plate 4 enclose the socket 702. In this embodiment, the latch 701 is provided on the upper side of the guard plate 4, and the socket 702 is provided on the lower side of the guard plate 4. If the latch 701 is provided on the lower side of the guard plate 4, it may contact the bottom of the pit, causing the protective tube 1 at the bottom of the pit to tilt. By providing the latch 701 on the upper side of the guard plate 4, this can be reduced.

[0047] In this embodiment, each protective tube 1 is provided with multiple latches 701, spaced apart along the extension direction of the guard plate 4. Correspondingly, the number of sockets 702 is the same as the number of latches 701, and each socket 702 corresponds one-to-one with the latches 701. The provision of multiple latches 701 and sockets 702 enhances the secure connection between the protective tubes 1.

[0048] In this embodiment, two fastening belts 3 are provided, and the two fastening belts 3 are arranged at intervals on the upper and lower sides of the cylinder 2. This arrangement enables the fastening belts 3 to tighten the cylinder 2 better.

[0049] The use process of the protective tube for excavating the foundation of the present invention is as follows:

[0050] First, the guard plate 4 is surrounded into a circular cylinder 2, and then the fixing bolt 9 is passed through the long hole 601 on the fastening belt 3, and the position of the fixing bolt 9 in the long hole 601 is adjusted according to the diameter of the pit to adjust the diameter of the cylinder 2 to the size suitable for the pit, and then the fastening nut is tightened to fix the diameter of the cylinder 2, thereby forming a protective cylinder 1. The number of protective cylinders 1 required is calculated according to the depth of the pit, and then each protective cylinder 1 is hoisted into the pit and connected up and down through the plug-in structure 7. Workers can then work in the protective cylinder 1. After the workers complete their work, each protective cylinder 1 is hoisted out of the pit, and the protective cylinder 1 can be reused.

[0051] Specific embodiment 2 of the protective tube for excavated foundation of the present invention is different from embodiment 1 introduced above in that a fixing plate is provided on the guard plate, and a through-hole is provided on the fixing plate, and the through-hole is a socket.

[0052] Specific embodiment 3 of the protective tube for excavated foundations of the present invention differs from embodiment 1 described above in that the latch is provided on the lower side of the protective plate, and the insertion hole is provided on the upper side of the protective plate. In other embodiments, the insertion hole and latch can be provided on the upper side of the protective plate, while the insertion hole and latch can also be provided on the lower side of the protective plate.

[0053] Specific embodiment 4 of the protective tube for excavated foundation of the present invention is different from embodiment 1 introduced above in that the fastening belt only includes a movable adjustment section, one end of the movable adjustment section is welded and fixed to the adjustment end of the guard plate, and the other end is provided with a long hole.

[0054] Specific embodiment 5 of the protective tube for excavated foundation of the present invention is different from embodiment 1 introduced above in that there is only one fastening belt, or in other embodiments, three, four or more fastening belts can be provided, and each fastening belt is arranged at intervals on the upper and lower parts of the tube body.

[0055] Specific embodiment 6 of the protective tube for excavated foundation of the present invention is different from embodiment 1 introduced above in that the fixing hole is a circular hole, and there are multiple fixing holes and they are spaced apart along the length direction of the fastening belt. The length of the overlapping part is changed by cooperating with different fixing holes and fixing bolts to achieve adjustment of the diameter of the protective tube.

[0056] Specific embodiment 7 of the protective tube for excavated foundation of the present invention is different from embodiment 1 introduced above in that a bolt hole is provided at the fixed end of the guard plate. When the guard plate is enclosed into a cylinder of the required diameter, the fixing bolt needs to pass through the bolt hole on the cylinder, the bolt through hole and the long hole on the fastening belt in sequence, and the fastening nut is tightened to fix the diameter of the cylinder.

[0057] Specific embodiment 8 of the protective tube for excavated foundation of the present invention is different from embodiment 1 introduced above in that the plug-in structure includes an upper plug-in tube and a lower plug-in tube that are inserted into each other, the upper plug-in tube is arranged on the upper side of the guard plate, and the lower plug-in tube is arranged on the lower side of the guard plate, and adjacent protective tubes for excavated foundation are plugged in up and down through the upper plug-in tube and the lower plug-in tube.

[0058] Specific embodiment 9 of the protective tube for excavated foundation of the present invention is different from embodiment 1 introduced above in that the fastening belt and the tube body are fixed by bolts, or in other embodiments, the fastening belt and the tube body can be fixed by screws.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A protective tube for excavated foundation, characterized in that: The cam is provided with a plurality of fixing means for fixing the fixing means, and the fixing means for fixing the fixing means are provided with a plurality of fixing means for fixing the fixing means. A fastening nut is provided on it for fixing the fastening belt after the fixing bolt passes through the fixing hole. A plurality of fixing holes are arranged in the length direction of the fastening belt. The length of the overlapping part is changed by changing the coordination between the fixing hole and the fixing bolt to adjust the diameter of the protective tube, or the fixing hole is a long hole extending along the length direction of the fastening belt. The length of the overlapping part is changed by changing the position of the fixing bolt in the long hole along the length direction of the fastening belt to adjust the diameter of the protective tube; the fastening belt extends from the adjustment end of the guard plate to the fixed end and is fixed to the fixed end before the guard plate is bent to form a cylinder; the cylinder is fixed by welding the fixing bolt; at least two fastening belts are provided, and each fastening belt is arranged at intervals on the cylinder.

2. The protective tube for excavated foundation according to claim 1, characterized in that: The fastening belt is welded and fixed to the fixed end before the guard plate is bent into a cylinder.

3. The protective cylinder for excavated foundation according to any one of claims 1 to 2, characterized in that: One end of the movable adjusting section is welded and fixed to the cylinder.

4. The protective cylinder for excavated foundation according to any one of claims 1-2, characterized in that: The plug-in structure includes a pin and a socket, the pin is set on the upper side of the guard plate, and the socket is set on the lower side of the guard plate, or the pin is set on the lower side of the guard plate, and the socket is set on the upper side of the guard plate; the adjacent excavated foundation protective tubes are connected up and down through the pin and the socket.

5. The protective cylinder for excavated foundation according to claim 4, characterized in that: A fixing frame is provided on the guard plate, and the fixing frame and the guard plate form the insertion hole.

6. The protective cylinder for excavated foundation according to claim 4, characterized in that: A plurality of plugs are provided, and the sockets correspond to the plugs one by one.

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