A device and method for transporting and installing concrete pipes in narrow and long deep foundation pits under complex environments

Abstract

The present invention discloses a device and method for transporting and installing concrete pipes in a long and narrow deep foundation pit under a complex environment, which comprises a movable base, a hoist, a hook and a concrete pipe rolling mechanism; the movable base comprises a support plate, the support plate spans above the foundation pit, a moving wheel and a guide wheel are installed at the bottom of the support plate, a driving motor for driving the moving wheel is installed on the support plate, and the guide wheel is in contact with steel sheet piles on both sides of the foundation pit; the hoist is arranged in the middle of the upper surface of the support plate, and a clearance through hole is arranged on the surface of the support plate directly below the hoist; the steel wire rope on the hoist is connected to the hook; the concrete pipe rolling mechanism comprises a rotating shaft, a wheel hub and an anti-collision washer; the present invention designs the concrete pipe into a rollable wheel structure through the concrete pipe rolling mechanism, and uses the hoist and the movable base to pull the concrete pipe to roll, and after the concrete pipe is in place, the hoist is used to turn the concrete pipe 90 degrees and install it in a mating manner, so as to realize the movement and hoisting of the concrete pipe on the long and narrow deep foundation pit.

Description

Technical Field

[0001] The invention relates to the technical field of underground water concrete pipe installation, and in particular to a device and method for transporting and installing narrow and long deep foundation pit concrete pipes under complex conditions. Background Art

[0002] Concrete pipe is one of the commonly used drainage pipes, which is very effective in flood control and drainage in large, medium and small cities. In municipal engineering construction, it is necessary to excavate a foundation pit on the ground to facilitate the installation of concrete pipes. At present, the main methods of foundation pit excavation are sloped foundation pit and steel sheet pile supported foundation pit. When installing concrete pipes, the concrete pipes must be hoisted into the foundation pit for docking installation. Cranes are usually used for hoisting in large venues. However, in some environments, due to the narrow width of the ground, it is difficult for cranes to dock at the edge of the foundation pit when installing large concrete pipes, and small cranes cannot bear the weight of large concrete pipes. In addition, there are residential buildings on both sides of the foundation pit. The narrow site makes it difficult to transport concrete pipes to the designated location by current cranes and it is also difficult to move concrete pipes along the narrow foundation pit, which makes it difficult to transport and install concrete pipes.

[0003] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention

[0004] In view of the above technical problems, the present invention provides a device and method for transporting and installing concrete pipes in a narrow and long deep foundation pit in a complex environment, so as to solve the problem that concrete pipes are difficult to transport and install on narrow ground.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The present invention relates to a device for transporting and installing concrete pipes in a long and narrow deep foundation pit under a complex environment, which comprises a movable base, a hoist, a hook and a concrete pipe rolling mechanism; the movable base comprises a support plate, the support plate spans above the foundation pit, a movable wheel and a guide wheel are installed at the bottom of the support plate, a driving motor for driving the movable wheel is installed on the support plate, and the guide wheel is in contact with the steel sheet piles on both sides of the foundation pit; the hoist is arranged in the middle of the upper surface of the support plate, and a clearance through hole is arranged on the surface of the support plate directly below the hoist; the steel wire rope on the hoist is connected to the hook; the concrete pipe rolling mechanism comprises a rotating shaft, a wheel hub and an anti-collision washer; the wheel hub is installed inside the concrete pipe, the rotating shaft is connected to the wheel hub through a bearing and axially passes through the concrete pipe; the anti-collision washer is sleeved on the two end surfaces of the concrete pipe; the hook hooks the two ends of the rotating shaft respectively.

[0007] Furthermore, an annular groove for mounting a rubber ring is provided on the annular surface of the hub.

[0008] Furthermore, two wheel hubs are provided and are installed at two ends of the rotating shaft at intervals.

[0009] Furthermore, a through hole is arranged on the surface of the anti-collision gasket.

[0010] Furthermore, it also includes a fixing rod, which passes through the through hole on the anti-collision gasket and locks the anti-collision gaskets at both ends of the concrete pipe.

[0011] Using the above-designed device, the present invention also provides a method for transporting and installing narrow and long deep foundation pit concrete pipes under complex environments, which includes the following steps:

[0012] S1: Steel sheet piles are used to support the two side walls of the narrow and long deep foundation pit in the complex environment. The upper ends of the steel sheet piles are higher than the foundation pit ground, and a slope is set at one end of the foundation pit;

[0013] S2: The mobile base is horizontally placed on the foundation pit, and the guide wheels under the mobile base are in contact with the outer wall of the steel sheet pile;

[0014] S3: Installing a concrete pipe rolling mechanism on the concrete pipe, that is, installing the wheel hub inside the concrete pipe, installing a rubber ring on the annular surface of the concrete pipe so that the rubber ring fits the inner wall of the concrete pipe, and passing the rotating shaft through the bearing hole on the wheel hub; inserting anti-collision washers at both ends of the concrete pipe, passing the fixing rod through the through hole on the anti-collision washers, and locking the anti-collision washers at both ends of the concrete pipe;

[0015] S4: Hook both ends of the shaft with a hook and connect the hook to the wire rope on the hoist;

[0016] S5: Move the mobile base to the position of the foundation pit slope, roll the concrete pipe to be installed along the slope of the foundation pit into the foundation pit under the traction of the wire rope, and use the wire rope to pull back in the opposite direction of the rolling of the concrete pipe to control the rolling speed of the concrete pipe to ensure that the concrete pipe safely reaches the bottom of the foundation pit;

[0017] S6: When the concrete pipe reaches the bottom of the foundation pit safely, the mobile base is operated to continue to pull the concrete pipe to roll at the bottom of the foundation pit; when the concrete pipe rolls to the joint position, the driving motor is stopped and the concrete pipe is lifted by the hoist, and then the concrete pipe is rotated 90 degrees to align the concrete pipe interface, and the mobile base is continued to be driven to fine-tune the distance between the concrete pipe interfaces to ensure the installation of the two interfaces;

[0018] S7: After the distance adjustment of the concrete pipe joint is completed, the lifted concrete pipe is put down, and then the rotating shaft, anti-collision gasket, wheel hub and fixing rod of the concrete pipe rolling mechanism are taken out, and the concrete pipe joint is sealed to finally realize the installation of the concrete pipe; after the concrete pipe rolling mechanism is taken out, the next concrete pipe is transported and installed.

[0019] Preferably, the method of moving the concrete pipe to the bottom of the foundation pit in step S5 further includes using a crane to hoist the concrete pipe into the foundation pit.

[0020] The beneficial effects of the present invention compared with the prior art are as follows:

[0021] The present invention designs a device for transporting and installing concrete pipes in long and narrow deep foundation pits in complex environments, utilizes a concrete pipe rolling mechanism, designs the entire concrete pipe into a rollable wheel structure, and utilizes a hoist and a movable base. After the concrete pipe is in place, the hoist is used to turn the concrete pipe 90 degrees and install it in a mating manner, thereby realizing the movement and lifting of the concrete pipe on the long and narrow deep foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the narrow and long deep foundation pit concrete pipe transportation and installation device of the present invention;

[0023] Figure 2 It is a top view of a narrow and long deep foundation pit concrete pipe transportation and installation device;

[0024] Figure 3 This is a front view of a narrow and long deep foundation pit concrete pipe transportation and installation device;

[0025] Figure 4 It is the AA section view of the narrow and long deep foundation pit concrete pipe transportation and installation device;

[0026] Figure 5 It is a schematic diagram of the installation structure of the rotating shaft, wheel hub, anti-collision washer, fixing rod and concrete pipe;

[0027] Figure 6 It is a schematic diagram of the operation of the device in a foundation pit with internal supports installed.

[0028] Figure numerals: 1. Support plate; 2. Hoist; 3. Hook; 4. Concrete pipe rolling mechanism; 41. Rotating shaft; 42. Wheel hub; 43. Anti-collision washer; 44. Annular groove; 45. Fixed rod; 5. Moving wheel; 6. Guide wheel; 7. Driving motor; 8. Steel sheet pile; 9. Concrete pipe; 10. Make way hole; 11. Steel wire rope; 12. Inner support. DETAILED DESCRIPTION

[0029] A specific embodiment of the present invention is described in detail below in conjunction with the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited by the specific embodiment. It should be understood that the "up", "down", "left" and "right" directions mentioned in the following embodiments of the present invention are all based on the positions of the corresponding drawings. These words used to limit the direction are only for the convenience of explanation and do not represent limitations on the specific technical solutions of the present invention. Unless otherwise specified, the same numbers in the figure marks represent the same structure.

[0030] See attached Figures 1 to 5 As shown, the present invention designs a narrow and long deep foundation pit concrete pipe transportation and installation device in a complex environment, which includes a mobile base, a hoist 2, a hook 3, and a concrete pipe rolling mechanism 4; the mobile base includes a support plate 1, the support plate 1 spans above the foundation pit, and a moving wheel 5 and a guide wheel 6 are installed at the bottom of the support plate 1. A driving motor 7 for driving the moving wheel 5 is installed on the support plate 1, and the operation of the entire mobile base is realized by controlling the driving motor 7; the guide wheel 6 is attached to the steel sheet piles 8 on both sides of the foundation pit, and the guide wheel 6 is used to move the steel sheet piles 8 on both sides of the foundation pit. The wheel 6 ensures the linear movement of the mobile base and avoids direct collision between the mobile base and the steel sheet pile 8, and the guide wheel 6 is elastically connected to the support plate 1 to achieve a better shock-absorbing effect; the hoist 2 is arranged in the middle of the upper surface of the support plate 1, and the hoist 2 is used to hoist the concrete pipe 9; a clearance through hole 10 is arranged on the surface of the support plate 1 directly below the hoist 2 to facilitate the passage of the wire rope 11; the wire rope 11 on the hoist 2 is connected to the hook 3; further, the concrete pipe rolling mechanism 4 includes a rotating shaft 41, a wheel hub 42, anti-collision gasket 43; the wheel hub 42 is installed inside the concrete pipe 9, and an annular groove 44 for installing a rubber ring is provided on the annular surface of the wheel hub 42, and the rubber ring is fitted with the inner wall of the concrete pipe 9 to prevent the rigid collision between the wheel hub 42 and the concrete pipe 9 from causing damage to the concrete pipe 9, and the wheel hub 42 is provided with two, which are installed at intervals at the two ends of the rotating shaft 41; the rotating shaft 41 is connected to the wheel hub 42 through a bearing and axially passes through the concrete pipe 9; the anti-collision gasket 43 is sleeved on the two end surfaces of the concrete pipe 9, and on the surface of the anti-collision gasket 43 A through hole is provided on the surface, and a fixing rod 45 is passed through the through hole. The fixing rod 45 is used to lock the anti-collision washers 43 at both ends of the concrete pipe 9 to prevent the anti-collision washers 43 from falling off during the rolling of the concrete pipe 9; finally, the hook 3 is hooked on the two ends of the rotating shaft 41 respectively, and the hook 3 is pulled by the wire rope 11 to realize the rolling of the concrete pipe 9 along the pulling direction, thereby forming a device that is convenient for the transportation and installation of the concrete pipe 9 on the narrow and deep foundation pit. This device spans above the narrow and deep foundation pit, effectively solving the problem that the concrete pipe 9 is difficult to transport and install on a narrow ground.

[0031] Specifically, using the above-designed device, the present invention also provides a method for transporting and installing narrow and long deep foundation pit concrete pipes in a complex environment, which includes the following steps:

[0032] S1: Steel sheet piles 8 are used to support the two side walls of the narrow and long deep foundation pit in the complex environment. The upper ends of the steel sheet piles 8 are higher than the foundation pit ground, and a slope is set at one end of the foundation pit;

[0033] S2: The mobile base is horizontally mounted on the foundation pit, and the guide wheel 6 below the mobile base is in contact with the outer wall of the steel sheet pile 8;

[0034] S3: Install the concrete tube rolling mechanism 4 on the concrete tube 9, that is, install the wheel hub 42 inside the concrete tube 9, install a rubber ring on the annular surface of the concrete tube 9, make the rubber ring fit the inner wall of the concrete tube 9, and pass the rotating shaft 41 through the bearing hole on the wheel hub 42; insert the anti-collision washers 43 at both ends of the concrete tube 9, pass the fixing rod 45 through the through hole on the anti-collision washers 43, and lock the anti-collision washers 43 at both ends of the concrete tube 9;

[0035] S4: Hook the two ends of the rotating shaft 41 with the hook 3, and connect the hook 3 to the wire rope 11 on the hoist 2;

[0036] S5: Move the mobile base to the position of the foundation pit slope, roll the concrete pipe 9 to be installed along the slope of the foundation pit into the foundation pit under the traction of the steel wire rope 11, and use the steel wire rope 11 to pull back in the opposite direction of the rolling of the concrete pipe 9 to control the rolling speed of the concrete pipe 9 to ensure that the concrete pipe 9 safely reaches the bottom of the foundation pit;

[0037] S6: When the concrete pipe 9 reaches the bottom of the foundation pit safely, the mobile base is operated to continue to pull the concrete pipe 9 to roll at the bottom of the foundation pit; when the concrete pipe 9 rolls to the joint position, the driving motor 7 is stopped and the concrete pipe 9 is lifted by the hoist 2, and then the concrete pipe 9 is rotated 90 degrees to align the interface of the concrete pipe 9, and the mobile base is continued to be driven to fine-tune the distance between the concrete pipe 9 and the interface to ensure the installation of the two interfaces;

[0038] S7: After the distance adjustment of the concrete pipe 9 interface is completed, the lifted concrete pipe 9 is put down, and then the rotating shaft 41, anti-collision gasket 43, wheel hub 42, and fixing rod 45 of the concrete pipe rolling mechanism 4 are taken out, and the interface of the concrete pipe 9 is sealed, and finally the installation of the concrete pipe 9 is realized; after the concrete pipe rolling mechanism 4 is taken out, the next concrete pipe 9 is transported and installed.

[0039] Preferably, the method of moving the concrete pipe 9 to the bottom of the foundation pit in step S5 further includes using a crane to hoist the concrete pipe 9 into the foundation pit.

[0040] In the actual engineering environment, the conditions of foundation pits are complex and varied. In some foundation pits, such as steel sheet pile foundation pits, see Figure 6 When the depth of the foundation pit exceeds four meters, an inner support 12 will be installed on the inner side of the steel sheet pile. Therefore, during the implementation of this device, it will affect the linkage of the mobile base and the steel wire rope 11 along the foundation pit. Therefore, in this case, if there is an inner support 12, this device can first fix the mobile base at the joint position of the concrete pipe 9, then pass the steel wire rope 11 through the bottom of the inner support 12, and then use the hoist 2 on the support plate 1 to pull the concrete pipe 9; in the foundation pit without an inner support 12, see Figures 1 to 5 , the movable base and the steel wire rope 11 of the device can move along the foundation pit all the time and pull the concrete pipe 9. Thus, the device can realize different working conditions according to different foundation pit forms.

[0041] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for transporting and installing narrow and long deep foundation pit concrete pipes in complex environments, characterized in that: It includes a movable base, a hoist, a hook, and a concrete pipe rolling mechanism; the movable base includes a support plate, the support plate spans above the foundation pit, and movable wheels and guide wheels are installed at the bottom of the support plate. A driving motor for driving the movable wheels is installed on the support plate, and the guide wheels are in contact with the steel sheet piles on both sides of the foundation pit; the hoist is arranged in the middle of the upper surface of the support plate, and a clearance through hole is arranged on the surface of the support plate directly below the hoist; the steel wire rope on the hoist is connected to the hook; the concrete pipe rolling mechanism includes a rotating shaft, a wheel hub, and an anti-collision washer; the wheel hub is installed inside the concrete pipe, the rotating shaft is connected to the wheel hub through a bearing, and axially passes through the concrete pipe; the anti-collision washer is sleeved on the two end surfaces of the concrete pipe; the hook hooks the two ends of the rotating shaft respectively.

2. The device for transporting and installing narrow and long deep foundation pit concrete pipes in a complex environment as claimed in claim 1, characterized in that: An annular groove for mounting a rubber ring is arranged on the annular surface of the wheel hub.

3. The device for transporting and installing narrow and long deep foundation pit concrete pipes in complex environments as claimed in claim 1, characterized in that: The wheel hubs are provided with two and are respectively installed at two ends of the rotating shaft at intervals.

4. The device for transporting and installing narrow and long deep foundation pit concrete pipes in complex environments as claimed in claim 1, characterized in that: A through hole is arranged on the surface of the anti-collision washer.

5. The device for transporting and installing narrow and long deep foundation pit concrete pipes in complex environments as claimed in claim 4, characterized in that: The utility model also comprises a fixing rod, which passes through a through hole on the anti-collision washer and locks the anti-collision washers at both ends of the concrete pipe.

6. A method for transporting and installing narrow and long deep foundation pit concrete pipes under complex environment, comprising the device for transporting and installing narrow and long deep foundation pit concrete pipes under complex environment as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: S1: Steel sheet piles are used to support the two side walls of the narrow and long deep foundation pit in the complex environment. The upper ends of the steel sheet piles are higher than the foundation pit ground, and a slope is set at one end of the foundation pit; S2: The mobile base is horizontally placed on the foundation pit, and the guide wheels under the mobile base are in contact with the outer wall of the steel sheet pile; S3: Installing a concrete pipe rolling mechanism on the concrete pipe, that is, installing the wheel hub inside the concrete pipe, installing a rubber ring on the annular surface of the concrete pipe so that the rubber ring fits the inner wall of the concrete pipe, and passing the rotating shaft through the bearing hole on the wheel hub; inserting anti-collision washers at both ends of the concrete pipe, passing the fixing rod through the through hole on the anti-collision washers, and locking the anti-collision washers at both ends of the concrete pipe; S4: Hook both ends of the shaft with a hook and connect the hook to the wire rope on the hoist; S5: Move the mobile base to the position of the foundation pit slope, roll the concrete pipe to be installed along the slope of the foundation pit into the foundation pit under the traction of the wire rope, and use the wire rope to pull back in the opposite direction of the rolling of the concrete pipe to control the rolling speed of the concrete pipe to ensure that the concrete pipe safely reaches the bottom of the foundation pit; S6: When the concrete pipe reaches the bottom of the foundation pit safely, the mobile base is operated to continue to pull the concrete pipe to roll at the bottom of the foundation pit; when the concrete pipe rolls to the joint position, the driving motor is stopped and the concrete pipe is lifted by the hoist, and then the concrete pipe is rotated 90 degrees to align the concrete pipe interface, and the mobile base is continued to be driven to fine-tune the distance between the concrete pipe interfaces to ensure the installation of the two interfaces; S7: After the distance adjustment of the concrete pipe joint is completed, the lifted concrete pipe is put down, and then the rotating shaft, anti-collision gasket, wheel hub and fixing rod of the concrete pipe rolling mechanism are taken out, and the concrete pipe joint is sealed to finally realize the installation of the concrete pipe; after the concrete pipe rolling mechanism is taken out, the next concrete pipe is transported and installed.

7. A method for transporting and installing narrow and long deep foundation pit concrete pipes in a complex environment as claimed in claim 6, characterized in that: The method of moving the concrete pipe to the bottom of the foundation pit in step S5 also includes using a crane to lift the concrete pipe into the foundation pit.

Images