Steel pipe column guiding type positioning device

Abstract

A kind of steel pipe column guiding type positioning device, including positioning sleeve, pulley, fixture panel and adjusting device;Positioning sleeve is used to be installed in the inside of casing;Pulley is installed on the outside wall of positioning sleeve, and can be contacted with the inside wall of casing;Fixture panel is set in the inside of positioning sleeve by adjusting device, for being attached to the outside wall of tool joint steel pipe column assembly component;Adjusting device is used to make fixture panel move radially in the inside of positioning sleeve, to adjust the position of fixture panel so as to be clamped on tool joint steel pipe column assembly component.On the basis of original construction process, by adding the positioning device in the lower part of tool joint steel pipe column assembly component, the positioning device cooperates with HPE machine to form two-point long spacing positioning, and the positioning spacing between tool joint steel pipe column assembly component two points is pulled apart, so that the vertical precision and anti-disturbance ability of steel pipe column installation are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of underground engineering construction technology, specifically to a guide positioning device for assisting in the positioning and installation of steel pipe columns in the top-down construction method. Background Technology

[0002] To minimize the impact on residents' lives and the operation of the city, the cut-and-cover method has become an important choice for the construction of underground stations. At the same time, as permanent load-bearing components in the construction and operation phases, the importance of controlling the installation accuracy of steel pipe columns below ground for the safe operation of the station is self-evident.

[0003] Tool sections are temporary, reusable auxiliary components that are temporarily fixed to the steel pipe column to form a tool section steel pipe column assembly. They are used to withstand clamping forces and prevent the clamps of the HPE machine and positioning device from directly damaging the steel pipe column.

[0004] The traditional construction method for steel pipe columns involves using an HPE hydraulic vertical insertion machine for positioning and installation. During construction, the HPE machine is first centered and leveled, and then the steel pipe column is vertically hoisted to the insertion port. The steel pipe column assembly is then lowered into the casing section by section by the clamps at the upper and lower ends of the HPE machine, which cross-grip the tool sections. During the lowering process, the verticality is adjusted using the two-point positioning principle of the clamps, and finally the steel pipe column is installed in place.

[0005] The current positioning method using an HPE hydraulic vertical insertion machine has the following problems: the two-point positioning distance of the clamps is insufficient; the clamps can only effectively position a small section of the upper part of the tool section steel pipe column assembly, and the displacement restriction effect on the considerable length of the tool section steel pipe column assembly below the casing is limited; relying solely on the clamps cannot ensure the overall verticality of the tool section steel pipe column assembly; and there is no effective support between the tool section steel pipe column assembly and the casing, making it impossible to stably control the lower posture of the tool section steel pipe column assembly. Therefore, there is an urgent need for a device that can provide effective support and positioning for the tool section steel pipe column assembly within the casing to overcome the shortcomings of the existing technology. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a steel pipe column guiding positioning device with reasonable structure and simple operation. This device can provide a stable positioning point for the tool section steel pipe column assembly inside the casing, and work together with the HPE machine above to form a long-distance positioning between the upper and lower points, thereby greatly improving the vertical accuracy and anti-disturbance ability of the steel pipe column installation.

[0007] To achieve the above objectives, the present invention provides a steel pipe column guiding positioning device, comprising a positioning sleeve, a pulley, a clamping panel, and an adjusting device. The positioning sleeve is installed inside the protective sleeve. The pulley is installed on the outer wall of the positioning sleeve and can contact the inner wall of the protective sleeve. The clamping panel is disposed inside the positioning sleeve via the adjusting device and is used to fit against the outer wall of the tool section steel pipe column assembly. The adjusting device is used to move the clamping panel radially within the positioning sleeve to adjust the position of the clamping panel so that it is clamped onto the tool section steel pipe column assembly.

[0008] As a further improvement of this utility model, the adjustment device includes a counterscrew and a fastening knob. One end of the counterscrew is fixed to the clamp panel, and the other end is connected through the positioning sleeve. The fastening knob is set on the threaded section of the counterscrew. By turning the fastening knob, the counterscrew can be moved radially within the positioning sleeve.

[0009] As a further improvement of this utility model, the adjustment device also includes a fixing plate, which is fixed to the inner side of the positioning sleeve. The supporting screw passes through the fixing plate and the positioning sleeve in sequence, and the fastening knob is located inside the fixing plate and abuts against the fixing plate.

[0010] As a further improvement of this utility model, it also includes an elastic buffer pad, which is disposed between the pulley and the positioning sleeve.

[0011] As a further improvement of this utility model, it also includes an anti-slip elastic pad, which is disposed on the inner side of the clamp panel for contact with the tool section steel pipe column assembly.

[0012] As a further improvement of this utility model, the pulley is provided in at least two sets, with the at least two sets of pulleys arranged vertically at intervals, each set containing at least two pulleys, and the at least two pulleys in each set being on the same horizontal plane and distributed at equal intervals along the outer wall of the positioning sleeve.

[0013] As a further improvement of this utility model, at least two clamping panels are provided, and the at least two clamping panels are on the same horizontal plane and are evenly distributed along the outer wall of the tool section steel pipe column assembly.

[0014] As a further improvement of this utility model, the positioning sleeve has a cylindrical structure that is adapted to the shape of the inner side wall of the protective sleeve.

[0015] As a further improvement of this utility model, the clamp panel has an arc-shaped structure that is adapted to the shape of the outer wall of the tool section steel pipe column assembly.

[0016] The beneficial effects of this utility model are as follows:

[0017] I. Improve positioning accuracy: Based on the original construction process, by adding the positioning device to the lower part of the tool section steel pipe column assembly, the positioning device and the HPE machine work together to form a long-distance positioning between the upper and lower points, thereby increasing the positioning distance between the two points of the tool section steel pipe column assembly and thus improving the vertical accuracy of the steel pipe column installation.

[0018] II. Improved Stability: The effective contact between the pulley of the positioning device and the casing creates positioning conditions for the installation of the tool section steel pipe column assembly. The positioning device is lowered together with the tool section steel pipe column assembly, continuously keeping the tool section steel pipe column assembly centered and vertical, improving the lowering stability, and effectively preventing the tool section steel pipe column assembly from shifting its posture during lowering and subsequent construction.

[0019] 3. Improve the ability to resist disturbance: After the tool section steel pipe column assembly is lowered and positioned, the support formed at the bottom of the casing by the positioning device can effectively resist the disturbance caused by subsequent concrete pouring and sand backfilling to the tool section steel pipe column assembly, and further ensure the vertical posture of the steel pipe column.

[0020] IV. Simple operation, economical and environmentally friendly: The positioning device has a simple structure and is easy to operate. It can play a role in horizontal positioning and verticality control throughout the entire construction process of steel pipe columns. Moreover, it can be recycled and reused after the excavation of each section, which meets the requirements of green construction. Attached Figure Description

[0021] Figure 1 This is a front view of the positioning device;

[0022] Figure 2 This is a top view schematic diagram of the positioning device;

[0023] Figure 3 This is a three-dimensional schematic diagram of the positioning device;

[0024] Marking description: 1. Positioning sleeve, 2. Pulley, 3. Elastic buffer pad, 4. Clamp panel, 5. Anti-slip elastic pad, 6. Adjustment device, 61. Fixing plate, 62. Support screw, 63. Fastening knob, 7. Protective sleeve, 8. Tool section steel pipe column assembly. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0026] As shown in Figures 1 and 1-3, a steel pipe column guided positioning device includes a positioning sleeve 1, a pulley 2, an elastic buffer pad 3, a clamping panel 4, an anti-slip elastic pad 5, and an adjustment device 6.

[0027] The positioning sleeve 1 has a cylindrical structure that matches the shape of the inner wall of the protective sleeve 7, and its diameter is slightly smaller than the inner diameter of the protective sleeve 7. It is used to install inside the protective sleeve 7.

[0028] The pulleys 2 are mounted on the outer wall of the positioning sleeve 1 and are able to contact the inner wall of the protective sleeve 7. Preferably, there are two sets of pulleys 2, four in each set, with the four pulleys 2 positioned on the same horizontal plane and evenly spaced along the outer wall of the positioning sleeve 1. The pulleys 2 allow the positioning sleeve 1 to move up and down along the inner wall of the protective sleeve 7. In other embodiments, the number of sets and quantities of pulleys 2 can be adjusted appropriately, but there should be at least two sets, with at least two pulleys in each set, to maintain the smoothness of the downward movement of the positioning sleeve 1.

[0029] The elastic buffer pad 3 is set between the pulley 2 and the clamp panel 4. The elastic buffer pad 3 has a certain elasticity, which allows it to undergo coordinated deformation during the downward movement of the positioning sleeve 1, so that the pulley 2 can maintain contact with the inner wall of the protective sleeve 7 while preventing the positioning sleeve 1 from getting stuck in the protective sleeve 7.

[0030] The clamping panel 4 has an arc-shaped structure adapted to the shape of the outer wall of the tool section steel pipe column assembly 8. It is positioned inside the positioning sleeve 1 via the adjusting device 6 and is used to fit against the outer wall of the tool section steel pipe column assembly 8. Preferably, there are four clamping panels 4, which are located on the same horizontal plane and evenly distributed along the outer wall of the tool section steel pipe column assembly 8. These panels are used to clamp the tool section steel pipe column assembly 8, keeping it centered and vertical. In other embodiments, the number of clamping panels 4 can be adjusted appropriately, but at least two are required to form a clamping state.

[0031] The anti-slip elastic pad 5 is set on the inside of the clamp panel 4 to fit against the tool section steel pipe column assembly 8. Its function is to generate sufficient fastening friction when the clamp clamps the tool section steel pipe column assembly 8.

[0032] The adjusting device 6 is used to move the clamping panel 4 radially within the positioning sleeve 1 to adjust its position so that it clamps onto the tool section steel pipe column assembly 8. The adjusting device 6 includes a fixing plate 61, a supporting screw 62, and a fastening knob 63. The fixing plate 61 is fixed to the inner side of the positioning sleeve 1. One end of the supporting screw 62 is fixed to the clamping panel 4, and the other end passes through and connects to the fixing plate 61 and the positioning sleeve 1. The fastening knob 63 is located on the threaded section of the supporting screw 62, inside the fixing plate 61, and abuts against the fixing plate 61. By turning the fastening knob 63, the supporting screw 62 moves radially towards the center within the positioning sleeve 1, thereby moving the clamping panel 4 and changing the clamping diameter formed by the four clamping panels 4, thus clamping the tool section steel pipe column assembly 8.

[0033] The operation procedure of the above positioning device is as follows:

[0034] 1. The positioning device is used for verticality control and precise positioning of steel pipe columns in underground engineering installation. Before the HPE machine is in place, the positioning device is temporarily fixed to the top surface of the casing 7 so that the lowered tool section steel pipe column assembly 8 can be directly gripped. This process ensures that the upper and lower pulleys 2 of the positioning device are in close contact with the side wall of the casing 7, so that it can accurately guide the subsequent lowering of the tool section steel pipe column assembly 8.

[0035] 2. After the HPE machine lowers the tool section steel pipe column assembly 8 into the designed position in the casing 7, the fastening knob 63 is turned to move the support screw 62 towards the center of the positioning device, so that the elastic pad on the clamping panel 4 is tightly attached to the outer wall of the tool section steel pipe column assembly 8. The clamping panel 4 clamps the tool section steel pipe column assembly 8 with pressure to facilitate coordinated lowering and positioning.

[0036] Third, the temporary fixing of the positioning device is released, and the HPE machine and the positioning device work together to lower the steel pipe column assembly. The HPE machine and the positioning device form two positioning points, one above the other. During the lowering of the steel pipe column assembly, the positioning device moves down together with the tool section steel pipe column assembly 8 in the casing 7, thereby effectively lengthening the distance between the upper and lower positioning points of the tool section steel pipe column assembly 8, improving the vertical accuracy of the steel pipe column, and achieving stable lowering and precise positioning installation of the tool section steel pipe column assembly 8. The fit between the positioning device and the casing 7 forms an effective fulcrum to maintain the installation posture of the tool section steel pipe column assembly 8, which can effectively resist the disturbance caused by the subsequent pouring of concrete and backfilling of sand in the steel pipe column, and strengthen the control of the entire construction process of the steel pipe column.

[0037] 4. After the segmented excavation of the steel pipe column is completed, the positioning device shall be recycled for reuse.

[0038] The above-described embodiments are merely illustrative of this utility model. Any equivalent embodiments made by those skilled in the art without departing from the technical features disclosed in this utility model, and without departing from the technical features of this utility model, shall still fall within the scope of the technical features of this utility model.

Claims

1. A steel pipe column guiding positioning device, characterized in that: The device includes a positioning sleeve, a pulley, a clamping panel, and an adjusting device. The positioning sleeve is installed inside the protective sleeve. The pulley is installed on the outer wall of the positioning sleeve and can contact the inner wall of the protective sleeve. The clamping panel is set inside the positioning sleeve by the adjusting device and is used to fit against the outer wall of the tool section steel pipe column assembly. The adjusting device is used to move the clamping panel radially within the positioning sleeve to adjust the position of the clamping panel so that it is clamped onto the tool section steel pipe column assembly.

2. The steel pipe column guiding positioning device according to claim 1, characterized in that: The adjustment device includes a counterscrew and a fastening knob. One end of the counterscrew is fixed to the clamp panel, and the other end is connected through the positioning sleeve. The fastening knob is located on the threaded section of the counterscrew. By turning the fastening knob, the counterscrew can move radially within the positioning sleeve.

3. The steel pipe column guiding positioning device according to claim 2, characterized in that: The adjustment device also includes a fixing plate, which is fixed to the inner side of the positioning sleeve. The supporting screw passes through the fixing plate and the positioning sleeve in sequence, and the fastening knob is located inside the fixing plate and rests against the fixing plate.

4. The steel pipe column guiding positioning device according to claim 1, characterized in that: It also includes an elastic buffer pad, which is disposed between the pulley and the positioning sleeve.

5. The steel pipe column guiding positioning device according to claim 1, characterized in that: It also includes anti-slip elastic pads, which are disposed on the inner side of the clamp panel for contact with the tool section steel pipe column assembly.

6. The steel pipe column guiding positioning device according to claim 1, characterized in that: The pulleys are provided in at least two sets, with the at least two sets of pulleys arranged vertically at intervals. Each set contains at least two pulleys, and the at least two pulleys in each set are on the same horizontal plane and are evenly distributed along the outer wall of the positioning sleeve.

7. The steel pipe column guiding positioning device according to claim 1, characterized in that: The clamping panel is provided with at least two, and the at least two clamping panels are on the same horizontal plane and are distributed at equal intervals along the outer wall of the tool section steel pipe column composite component.

8. The steel pipe column guiding positioning device according to claim 1, characterized in that: The positioning sleeve has a cylindrical structure that is adapted to the shape of the inner wall of the protective sleeve.

9. A steel pipe column guiding positioning device according to claim 1, characterized in that: The clamp panel has an arc-shaped structure that matches the shape of the outer wall of the tool section steel pipe column assembly.

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