Steel casing structure for bridge pile foundation construction

Abstract

The utility model discloses a bridge pile foundation construction steel casing structure which comprises a casing body used for pouring a pile foundation. The supporting pipe is matched with the pile casing body and is used for supporting the pile casing body; and the base is fixed to the ground, and an adjusting mechanism used for adjusting the supporting pipe in the vertical direction is installed between the base and the supporting pipe. According to the pile casing, after the pile casing body is inserted into the supporting pipe, the supporting pipe is adjusted through the adjusting mechanism so that the pile casing body can be conveniently connected with the supporting pipe, the installation precision of the pile casing body is reduced, the construction efficiency is improved, and the problem that the requirement for the installation precision is high is solved.

Description

Technical Field

[0001] The utility model relates to the field of pile foundation construction, in particular to a steel casing structure for bridge pile foundation construction. Background Art

[0002] The casing is used for pile foundation pouring construction. It is made of steel and is cylindrical. It is generally a steel casing, which serves as a preventive fixation during construction. Chinese patent CN201921545972.3 discloses a pile foundation casing, including a casing, which is a cylinder with openings at both ends. The outer side of the casing is detachably connected to a coaxial positioning cylinder, which is sleeved on the outer circumference of the casing and slidably connected to the casing. A leveling device is provided at the bottom end of the positioning cylinder. The leveling device includes a connecting plate fixed on the outer circumference of the positioning cylinder. There are multiple connecting plates evenly distributed along the circumference of the positioning cylinder. Each connecting plate is threadedly connected with a leveling bolt, and the axial direction of the leveling bolt is the same as the axial direction of the positioning cylinder. The above-mentioned casing has the effect of preventing the casing from being deflected during the insertion process and improving work efficiency.

[0003] The existing casing structure has the following problems: since the casing needs to be fixedly connected with the positioning tube after installation, the installation accuracy of the casing is required to be high.

[0004] Based on the above situation, a steel casing structure is urgently needed for bridge pile foundation construction to solve the problem of high installation accuracy requirements. Utility Model Content

[0005] The purpose of the utility model is to solve the problem of high installation precision requirement for the existing casing structure, which needs to be fixedly connected with the positioning tube after installation, resulting in high installation precision requirement for the casing.

[0006] The technical solution of the utility model is as follows:

[0007] The steel casing structure for bridge pile foundation construction includes:

[0008] The casing body is used to pour the pile foundation;

[0009] A support pipe, which cooperates with the casing body and is used to support the casing body;

[0010] The base is fixed on the ground, and an adjustment mechanism for adjusting the support tube along the vertical direction is installed between the base and the support tube.

[0011] The existing casing structure needs to be fixedly connected with the positioning tube after installation, which leads to high requirements for the installation accuracy of the casing. In this solution, after the casing body is inserted into the support tube, the support tube is adjusted by the adjustment mechanism to facilitate the connection between the casing body and the support tube, thereby reducing the installation accuracy of the casing body, improving the construction efficiency, and solving the problem of high installation accuracy requirements.

[0012] Furthermore, this sub-scheme does not solely limit the specific structure of the adjustment mechanism. One feasible scheme is: the adjustment mechanism includes at least three support rods rotatably connected to the support tube, and the end of the support rod away from the support tube is connected to a slider, and the slider is installed on a base and a driving part for driving the slider is installed on the base. When this scheme is adopted, the corresponding slider is driven to move by the driving part, so that the support tube can be adjusted in the vertical direction.

[0013] Furthermore, in order to keep the support tube vertical, one feasible solution is: a horizontal sensor is installed on the support tube. When this solution is adopted, the horizontal sensor detects the inclination of the support tube in real time and feedback controls the driving part, so that the support tube can be kept vertical.

[0014] Furthermore, this sub-scheme does not solely limit the specific structure of the driving part. One feasible scheme is: the driving part includes a screw rod passing through the slider. When this scheme is adopted, the slider is driven to move by the screw rod to adjust the support tube. Due to the self-locking property of the screw rod structure, the slider can be kept fixed.

[0015] Furthermore, in order to make the movement process of the slider smooth, one feasible solution is: the screw rod is connected to a motor and the slider is penetrated by a guide rod. When this solution is adopted, the motor drives the screw rod to rotate to drive the slider to move, and the auxiliary guidance of the guide rod can make the movement process of the slider smooth.

[0016] Furthermore, the present solution does not limit the supporting method of the support tube. One feasible solution is: a limiting flange is formed on the casing body, and the upper end surface of the support tube cooperates with the limiting flange. When this solution is adopted, the support tube is pushed toward and pressed against the limiting flange by the adjusting mechanism to achieve support for the casing body. When the casing body is disassembled, the adjusting mechanism moves the support tube away from the limiting flange, and the limiting flange facilitates the application of an upward force to the casing body.

[0017] Furthermore, in order to further fix the casing body, one feasible solution is: a fastener is installed between the casing body and the support tube. When this solution is adopted, the casing body and the support tube are fixedly connected by the fastener.

[0018] Compared with the existing technology, the beneficial effects of the utility model are:

[0019] 1. After the casing body is inserted into the support pipe, the support pipe is adjusted by the adjustment mechanism so that the casing body is connected to the support pipe, thereby reducing the installation accuracy of the casing body, improving the construction efficiency, and solving the problem of high installation accuracy requirements;

[0020] Second, since the adjustment mechanism includes at least three support rods rotatably connected to the support tube, a slider is connected to one end of the support rod away from the support tube, the slider is mounted on a base and a driving part for driving the slider is mounted on the base, and the corresponding slider is driven to move by the driving part, so that the support tube can be adjusted in the vertical direction;

[0021] 3. A limiting flange is formed on the casing body, and the upper end surface of the support tube cooperates with the limiting flange. When this solution is adopted, the support tube is pushed toward and pressed against the limiting flange by the adjustment mechanism to support the casing body. When the casing body is disassembled, the adjustment mechanism moves the support tube away from the limiting flange, so that an upward force is applied to the casing body through the limiting flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall first viewing angle structure of an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall structure of the embodiment of the utility model from a second viewing angle;

[0024] Figure 3 This is a schematic diagram of the structure of the driving part of an embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the casing structure of an embodiment of the utility model;

[0026] Figure 5 for Figure 3 Enlarged view of point A in .

[0027] Reference numerals:

[0028] 1. Casing body; 2. Support pipe; 3. Base; 4. Adjustment mechanism; 5. Fasteners;

[0029] 11. Limiting flange;

[0030] 21. Level sensor;

[0031] 41. Support rod; 42. Slider; 43. Driving unit;

[0032] 431. Screw rod; 432. Motor; 433. Guide rod. DETAILED DESCRIPTION

[0033] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0034] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0035] Example:

[0036] Please refer to Figure 1 , bridge pile foundation construction steel casing structure, including:

[0037] The casing body 1 is used for pouring the pile foundation;

[0038] A support tube 2, which cooperates with the casing body 1 and is used to support the casing body 1;

[0039] The base 3 is fixed on the ground, and an adjustment mechanism 4 for adjusting the support tube 2 along the vertical direction is installed between the base 3 and the support tube 2.

[0040] The existing casing structure needs to be fixedly connected with the positioning tube after installation, resulting in high requirements for the installation accuracy of the casing. In this solution, after the casing body 1 is inserted into the support tube 2, the support tube 2 is adjusted by the adjustment mechanism 4 to facilitate the connection between the casing body 1 and the support tube 2, thereby reducing the installation accuracy of the casing body 1, improving the construction efficiency, and solving the problem of high installation accuracy requirements.

[0041] Reference Figure 2 This sub-scheme does not limit the specific structure of the adjustment mechanism 4. One feasible scheme is: the adjustment mechanism 4 includes four support rods 41 rotatably connected to the support tube 2, and the end of the support rod 41 away from the support tube 2 is connected to a slider 42, the slider 42 is installed on the base 3 and the base 3 is equipped with a driving part 43 for driving the slider 42. When this scheme is adopted, the corresponding slider 42 is driven to move by the driving part 43, so that the support tube 2 can be adjusted in the vertical direction.

[0042] Reference Figure 3 and Figure 4In order to keep the support tube 2 vertical, one feasible solution is: a horizontal sensor 21 is installed on the support tube 2. When this solution is adopted, the horizontal sensor 21 detects the inclination angle of the support tube 2 in real time and feedback controls the driving part 43, so that the support tube 2 can be kept vertical.

[0043] This sub-scheme does not limit the specific structure of the driving part 43. One feasible scheme is: the driving part 43 includes a screw rod 431 passing through the slider 42. When this scheme is adopted, the slider 42 is driven to move by the screw rod 431 to adjust the support tube 2. Due to the self-locking property of the screw rod structure, the slider 42 can be kept fixed.

[0044] In order to make the movement process of the slider 42 smooth, one feasible solution is: the screw rod 431 is connected to the motor 432 and the slider 42 is penetrated by a guide rod 433. When this solution is adopted, the screw rod 431 is driven to rotate by the motor 432 to drive the slider 42 to move, and the auxiliary guidance of the guide rod 433 can make the movement process of the slider 42 smooth.

[0045] Reference Figure 1 and Figure 5 This solution does not limit the supporting method of the support tube 2. One feasible solution is: a limiting flange 11 is formed on the casing body 1, and the upper end surface of the support tube 2 cooperates with the limiting flange 11. When this solution is adopted, the support tube 2 is pushed toward and pressed against the limiting flange 11 by the adjusting mechanism 4 to support the casing body 1. When the casing body 1 is disassembled, the adjusting mechanism 4 moves the support tube 2 away from the limiting flange 11, and the limiting flange 11 facilitates the application of an upward force to the casing body 1.

[0046] In order to further fix the casing body 1, one feasible solution is: a fastener 5 is installed between the casing body 1 and the support tube 2. Specifically, in this embodiment, the fastener 5 is a bolt. When this solution is adopted, the casing body 1 and the support tube 2 are fixedly connected by the fastener 5.

[0047] The working principle of this embodiment:

[0048] The base 3 is fixed on the ground, the motor 432 drives the screw rod 431 to rotate and moves the slider 42 outward, and the inclination angle of the support tube 2 is detected in real time by the horizontal sensor 21, so that the support tube 2 maintains the vertical direction and moves downward, the casing body 1 is installed in the support tube 2 and inserted into the drill hole, the motor 432 drives the screw rod 431 to rotate and moves the slider 42 inward, so that the support tube 2 is pushed toward the limiting flange 11, and when the support tube 2 is pressed against the limiting flange 11, the motor 432 stops working, and the fastener 5 is installed to fix the casing body 1, and the pile foundation is poured.

[0049] In order to solve the problem of high installation accuracy requirements, in this solution, after the casing body 1 is inserted into the support tube 2, the support tube 2 is adjusted by the adjustment mechanism 4 to facilitate the connection between the casing body 1 and the support tube 2, thereby reducing the installation accuracy of the casing body 1, improving the construction efficiency, and solving the problem of high installation accuracy requirements.

[0050] In order to adjust the support tube 2 in the vertical direction, in the present solution, since the adjustment mechanism 4 includes at least three support rods 41 rotatably connected to the support tube 2, the end of the support rod 41 away from the support tube 2 is connected to a slider 42, the slider 42 is installed on the base 3 and a driving part 43 for driving the slider 42 is installed on the base 3. The corresponding slider 42 is driven to move by the driving part 43, so that the support tube 2 can be adjusted in the vertical direction.

[0051] In order to facilitate the removal of the casing body, in the present embodiment, a limiting flange 11 is formed on the casing body 1, and the upper end surface of the support tube 2 cooperates with the limiting flange 11. When this embodiment is adopted, the support tube 2 is pushed toward and pressed against the limiting flange 11 by the adjusting mechanism 4 to support the casing body 1. When the casing body 1 is removed, the adjusting mechanism 4 moves the support tube 2 away from the limiting flange 11, so that an upward force is applied to the casing body 1 through the limiting flange 11.

[0052] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The steel casing structure for bridge pile foundation construction is characterized by: include: The casing body (1) is used for pouring the pile foundation; A support tube (2) cooperates with the casing body (1) and is used to support the casing body (1); The base (3) is fixed to the ground, and an adjustment mechanism (4) for adjusting the support tube (2) in a vertical direction is installed between the base (3) and the support tube (2).

2. The steel casing structure for bridge pile foundation construction according to claim 1 is characterized in that: The adjustment mechanism (4) comprises at least three support rods (41) rotatably connected to the support tube (2); one end of the support rod (41) away from the support tube (2) is connected to a slider (42); the slider (42) is mounted on a base (3); and a driving part (43) for driving the slider (42) is mounted on the base (3).

3. The steel casing structure for bridge pile foundation construction according to claim 2 is characterized in that: The support tube (2) is provided with a level sensor (21) for feedback control of the driving unit (43).

4. The steel casing structure for bridge pile foundation construction according to claim 2 is characterized in that: The driving part (43) comprises a screw rod (431) passing through the slider (42).

5. The steel casing structure for bridge pile foundation construction according to claim 4 is characterized in that: The screw rod (431) is connected to a motor (432) and a guide rod (433) is passed through the slider (42).

6. The steel casing structure for bridge pile foundation construction according to claim 1 is characterized in that: A limiting flange (11) is formed on the casing body (1), and the upper end surface of the support tube (2) cooperates with the limiting flange (11).

7. The steel casing structure for bridge pile foundation construction according to claim 1 or 6, characterized in that: A fastener (5) is installed between the casing body (1) and the support tube (2).

Images