Positioning device for bridge pile foundation construction steel casing

Abstract

The invention relates to the technical field of building construction, in particular to a positioning device for a bridge pile foundation construction steel casing. After the positioning seat is placed at a corresponding position, the steel casing is aligned with the positioning groove and placed in, the surface of the pushing block is matched with the inner wall of the positioning groove, and the rubber pad protrudes out of the inner wall of the positioning groove, so that the outer wall of the steel casing is in contact with the rubber pad of the pushing block in the placing process, and the steel casing is prevented from being damaged by friction force generated by the rubber pad and the steel casing. In this way, a pushing block is easily pushed to move downwards, a first threaded rod is driven to rotate in the downward sliding process of the pushing block, a second gear is driven to rotate after the first threaded rod drives a first gear to rotate, a second threaded rod is driven by the second gear to move downwards and extend out of a sleeve, and meanwhile the second threaded rod can drill into the land after rotating and extending out. In this way, the positioning seat is firmer in the process that the steel casing is placed in.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a positioning device for a steel casing in bridge pile foundation construction. Background Art

[0002] With the development of expressways, bridge projects are increasing day by day. As the most important foundation type in bridge projects, bridge pile foundations have developed rapidly and are widely used. During the construction of bridge pile foundations, bored piles need to be excavated. In order to prevent the collapse of the holes and avoid affecting the construction progress and causing safety accidents, it is necessary to set up retaining walls to protect the bored piles during the excavation process. Due to the instability of the soil, it is very difficult to use reinforced concrete retaining walls. Therefore, steel casings are used to protect bored piles in the existing technology. Steel casings are hollow barrels made of iron sheets according to the size of the bored piles. Steel casings can stabilize the hole wall and prevent the hole from collapsing. They can also isolate surface water, guide the drill bit, fix the pile position, and protect the original operating ground. However, during the construction process, if the steel casing is not positioned accurately and tilted, it is easy to cause the steel casing to deform and be damaged, affecting the construction progress. It is particularly important to position the pile foundation steel casing during the construction process.

[0003] Although the positioning device can be relied upon for positioning and placement, it is easy for the positioning device to be severely offset during the placement process due to unstable fixation, which may cause the steel casing to be placed crooked during the placement process. Summary of the Invention

[0004] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the structures particularly pointed out in the description and other drawings.

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a positioning device for steel casing in bridge pile foundation construction to solve the existing problems.

[0006] To achieve the above-mentioned purpose, the technical solution of the present invention is: a positioning device for steel casing in bridge pile foundation construction, including a positioning seat, the end face of the positioning seat is provided with a positioning groove, the inner wall of the positioning groove is provided with multiple slide grooves, the slide groove is connected with a first mounting groove, bearings are installed in both ends of the slide groove, a first threaded rod is installed between the bearings, a first gear is installed on the upper end of the first threaded rod, the first gear is meshed with the second gear, a sleeve is provided on the top of the second gear, the sleeve is rotatably connected to the second gear, a second threaded rod is provided in the sleeve, the second threaded rod is threadedly connected to the second gear, the bottom of the second threaded rod is conical, the bottom of the first mounting groove passes through the bottom of the positioning seat, a push block is threadedly connected to the first threaded rod, the push block is slidably connected to the slide groove, and a rubber pad is provided on the surface of the push block.

[0007] In some embodiments, a placement groove is provided on the surface of the pushing block, a first spring is provided in the placement groove, a sliding block is provided at one end of the first spring, and an arc-shaped protrusion is provided on the surface of the sliding block.

[0008] In some embodiments, the arc-shaped raised surface is covered with an anti-slip pad.

[0009] In some embodiments, a plurality of anti-slip grooves are provided on the bottom of the positioning seat around the positioning groove.

[0010] In some embodiments, hidden seats are provided around the positioning seat, a sliding plate is provided inside the hidden seat, a pulley is installed at the bottom of the sliding plate, a third threaded rod is connected to the top of the sliding plate, and the top of the third threaded rod is connected to the top of the positioning seat through a threaded hole.

[0011] In some embodiments, rotating rods are provided on both sides of the top of the third threaded rod.

[0012] In some embodiments, a plurality of positioning rods are provided on the bottom of the positioning seat around the anti-slip groove.

[0013] In some embodiments, a second mounting groove is provided in the positioning rod, a second spring is provided at the top of the second mounting groove, a push plate is provided at the bottom of the second spring, a push rod is provided at the bottom of the push plate, connecting grooves are provided on both sides of the positioning rod, blades are hinged on both sides of the push rod, one end of the blade is extended out of the connecting groove, and the bottom of the push rod is provided with a blade extending through the bottom of the positioning rod.

[0014] In some embodiments, the bottom of the positioning rod is tapered.

[0015] In some embodiments, the bottom of the push rod is tapered.

[0016] By adopting the above technical solution, the beneficial effect of the present invention is as follows: after the positioning seat is placed in the corresponding position, the steel casing is aligned with the positioning groove and placed therein, the surface of the pushing block matches the inner wall of the positioning groove, and the rubber pad protrudes from the inner wall of the positioning groove. Therefore, during the placement process, the outer wall of the steel casing will contact the rubber pad of the pushing block, and the friction generated by the rubber pad and the steel casing will make it easy to push the pushing block down. In the process of the pushing block sliding downward, it will drive the first threaded rod to rotate, and after it drives the first gear to rotate, it drives the second gear to rotate. Driven by the second gear, the second threaded rod will move downward and extend out of the sleeve. At the same time, the second threaded rod will rotate and extend out, and will drill into the ground. This will make the positioning seat of the steel casing more firm during the placement process, avoiding displacement during the movement process. Subsequently, pulling out the steel casing will drive the pushing block upward, causing the second threaded rod to retract, and it can be removed subsequently.

[0017] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0018] Undoubtedly, these and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiment is described with reference to the various figures and drawings.

[0019] In order to make the above and other objects, features and advantages of the present invention more obvious and easy to understand, one or more preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention but do not constitute a limitation of the present invention.

[0021] In the drawings, like components are given like reference numerals, and the drawings are schematic and not necessarily drawn to scale.

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only one or several embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on such drawings without paying any creative work.

[0023] Figure 1 Schematic diagram of the structure of the positioning seat of some embodiments of the present invention; Figure 2 Schematic diagram of the structure inside the chute of some embodiments of the present invention; Figure 3Schematic diagram of the structure of the push block of some embodiments of the present invention; Figure 4 Schematic diagram of the structure of the bottom of the positioning seat in some embodiments of the present invention; Figure 5 Schematic diagram of the structure of hidden slots in some embodiments of the present invention; Figure 6 Schematic diagram of the structure of the positioning rod in some embodiments of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but are not intended to limit the present invention.

[0025] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the present invention, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed connections, removable connections, or integration; they may refer to direct connections or indirect connections through an intermediate medium; they may refer to internal communication between two components or interactions between two components. However, the term "direct connection" indicates that the two connected entities are not connected through a transitional structure, but are connected solely through a connecting structure to form a single entity. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0027] In the present invention, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0028] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0029] Reference Figure 1-6 The present invention also provides a positioning device for steel casing in bridge pile foundation construction, including a positioning seat 1, a positioning groove 2 is provided on the end face of the positioning seat 1, a plurality of slide grooves 21 are provided on the inner wall of the positioning groove 2, the slide groove 21 is connected with a first mounting groove 22, bearings 23 are installed in both ends of the slide groove 21, a first threaded rod 24 is installed between the bearings 23, a first gear 25 is installed on the upper end of the first threaded rod 24, the first gear 25 is meshed with the second gear 26, the top of the second gear 26 is provided with a sleeve 27, the sleeve 27 is rotatably connected to the second gear 26, a second threaded rod 28 is provided in the sleeve 27, the second threaded rod 28 is threadedly connected to the second gear 26, the bottom of the second threaded rod 28 is tapered, the bottom of the first mounting groove 22 passes through the bottom of the positioning seat 1, a pushing block 3 is threadedly connected to the first threaded rod 24, the pushing block 3 is slidably connected to the slide groove 21, and a rubber pad 36 is provided on the surface of the pushing block 3.

[0030] After the positioning seat 1 is placed in the corresponding position, the steel casing is aligned with the positioning groove 2 and inserted. The surface of the push block 3 matches the inner wall of the positioning groove 2, and the rubber pad 36 protrudes from the inner wall of the positioning groove 2. Therefore, during the insertion process, the outer wall of the steel casing will contact the rubber pad 36 of the push block 3. The friction generated by the rubber pad 36 and the steel casing makes it easy to push the push block 3 downward. During the downward sliding of the push block 3, the first threaded rod 24 is driven to rotate, which drives the first gear 25 to rotate, and then drives the second gear 26 to rotate. Under the drive of the second gear 26, the second threaded rod 28 is driven downward and extends out of the sleeve 27. At the same time, the second threaded rod 28 rotates and extends and drills into the ground. This makes the steel casing more secure during the insertion process and prevents displacement during the movement. Subsequently, pulling out the steel casing will drive the push block 3 upward, allowing the second threaded rod 28 to retract, and then it can be removed. In addition, the rubber pad 36 on the surface of the push block 3 may be damaged during long-term positioning and needs regular inspection and replacement.

[0031] According to some embodiments of the present invention, the push block 3 may optionally be provided with a placement groove 31 on its surface, a first spring 32 being provided in the placement groove 31, a sliding block 33 being provided at one end of the first spring 32, and an arc-shaped protrusion 34 being provided on the surface of the sliding block 33. The arc-shaped protrusion 34 is designed to fit more closely to the outer wall of the steel casing, and in conjunction with the spring, the bottom of the steel casing will not get stuck on the protrusion when in contact, and the protrusion will retract when in contact, thereby increasing the relative clamping effect on the outer wall of the steel casing with the help of the spring, thereby better pushing.

[0032] According to some embodiments of the present invention, optionally, the surface of the arc-shaped protrusion 34 is provided with a non-slip pad 35 to better fit the outer wall of the steel casing to increase friction.

[0033] According to some embodiments of the present invention, optionally, a plurality of anti-skid grooves 11 are provided at the bottom of the positioning seat 1 around the positioning groove 2. This allows the bottom of the positioning seat 1 and the ground to increase anti-skid properties and prevent displacement.

[0034] According to some embodiments of the present invention, the positioning seat 1 is optionally surrounded by hidden seats 12, and a sliding plate 13 is provided within the hidden seat 12. A pulley 14 is mounted on the bottom of the sliding plate 13, and a third threaded rod 16 is connected to the top of the sliding plate 13. The top of the third threaded rod 16 is connected to the top of the positioning seat 1 through a threaded hole 15. The threaded rod is controlled to rotate to push the sliding plate 13, so that it drives the pulley 14 up and down to extend and retract, which facilitates transportation. When it reaches the designated location, it can be retracted and placed, or it can be hoisted to the designated location.

[0035] According to some embodiments of the present invention, optionally, rotating rods 15 are provided on both sides of the top of the third threaded rod 16 to facilitate the lifting and lowering of the pulley 14 by rotating the threaded rod.

[0036] According to some embodiments of the present invention, optionally, a plurality of positioning rods 4 are provided at the bottom of the positioning seat 1 around the anti-slip groove 11. These rods 4 are embedded in the soil to increase positioning performance.

[0037] According to some embodiments of the present invention, the positioning rod 4 optionally includes a second mounting slot 41, a second spring 42 at the top of the second mounting slot 41, a push plate 43 at the bottom of the second spring 42, a push rod 44 at the bottom of the push plate 43, and a connecting slot 45 on both sides of the positioning rod 4. A blade 46 is hinged on both sides of the push rod 44, one end of the blade 46 protruding from the connecting slot 45, and a blade 46 is provided at the bottom of the push rod 44 to extend through the bottom of the positioning rod 4. After placement, when the positioning seat 1 is pressed down to contact the ground, the push rod 44 can retract inward after contacting the ground, causing the blade 46 to expand and then engage the soil, effectively positioning the positioning rod 4. When the positioning rod 1 is removed, the spring pushes the push rod 44 back to its original position, allowing the blade 46 to tilt and reset. In addition, the positioning rod 4 is joined in half with screws, which facilitates soil entry through the connecting slot 45 for cleaning during positioning and embedding. The blade 46 is also provided to better embed into the soil.

[0038] According to some embodiments of the present invention, optionally, the bottom of the positioning rod 4 is tapered to facilitate embedding in the ground.

[0039] According to some embodiments of the present invention, optionally, the bottom of the push rod 44 is tapered, so as to facilitate embedding in the ground.

[0040] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should extend to equivalent substitutions of such features understood by those skilled in the relevant art. It should also be understood that the terminology used herein is for the purpose of describing specific embodiments only and is not intended to be limiting.

[0041] The "embodiment" mentioned in the specification means that a particular feature or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present invention. Therefore, the phrase or "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0042] Furthermore, the described features or characteristics may be combined in any other suitable manner into one or more embodiments. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the present invention. However, those skilled in the relevant art will appreciate that the present invention may be implemented without one or more of the above specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A positioning device for steel casing in bridge pile foundation construction, characterized in that: include: A positioning seat (1) is provided with a positioning groove (2) on its end surface, and a plurality of slide grooves (21) are provided on the inner wall of the positioning groove (2), the slide groove (21) is connected to a first mounting groove (22), bearings (23) are installed in both ends of the slide groove (21), a first threaded rod (24) is installed between the bearings (23), a first gear (25) is installed on the upper end of the first threaded rod (24), the first gear (25) is meshed with the second gear (26), and a sleeve (27) is provided on the top of the second gear (26). The sleeve (27) is rotatably connected to the second gear (26), and a second threaded rod (28) is provided in the sleeve (27). The second threaded rod (28) is threadedly connected to the second gear (26). The bottom of the second threaded rod (28) is conical. The bottom of the first mounting groove (22) passes through the bottom of the positioning seat (1). A push block (3) is threadedly connected to the first threaded rod (24). The push block (3) is slidably connected to the slide groove (21). A rubber pad (36) is provided on the surface of the push block (3).

2. The positioning device for steel casing in bridge pile foundation construction according to claim 1, characterized in that: A placement groove (31) is provided on the surface of the pushing block (3), a first spring (32) is provided in the placement groove (31), a sliding block (33) is provided at one end of the first spring (32), and an arc-shaped protrusion (34) is provided on the surface of the sliding block (33).

3. The positioning device for steel casing in bridge pile foundation construction according to claim 2, characterized in that: The surface of the arc-shaped protrusion (34) is provided with a non-slip pad (35).

4. The positioning device for steel casing in bridge pile foundation construction according to claim 1, characterized in that: The bottom of the positioning seat (1) is provided with a plurality of anti-slip grooves (11) surrounding the positioning groove (2).

5. The positioning device for steel casing in bridge pile foundation construction according to claim 1, characterized in that: The positioning seat (1) is provided with a hidden seat (12) around it, a sliding plate (13) is provided inside the hidden seat (12), a pulley (14) is installed at the bottom of the sliding plate (13), a third threaded rod (16) is connected to the top of the sliding plate (13), and the top of the third threaded rod (16) is connected to the top of the positioning seat (1) through a threaded hole (15).

6. The positioning device for steel casing in bridge pile foundation construction according to claim 5, characterized in that: Rotating rods (15) are provided on both sides of the top of the third threaded rod (16).

7. The positioning device for steel casing in bridge pile foundation construction according to claim 1, characterized in that: A plurality of positioning rods (4) are provided on the bottom of the positioning seat (1) around the anti-slip groove (11).

8. The positioning device for steel casing in bridge pile foundation construction according to claim 7, characterized in that: A second mounting groove (41) is provided in the positioning rod (4), a second spring (42) is provided at the top of the second mounting groove (41), a push plate (43) is provided at the bottom of the second spring (42), a push rod (44) is provided at the bottom of the push plate (43), connecting grooves (45) are provided on both sides of the positioning rod (4), blades (46) are hinged on both sides of the push rod (44), one end of the blade (46) is extended out of the connecting groove (45), and the bottom of the push rod (44) is provided with a blade that passes through the bottom of the positioning rod (4).

9. The positioning device for steel casing in bridge pile foundation construction according to claim 7, characterized in that: The bottom of the positioning rod (4) is tapered.

10. The positioning device for steel casing in bridge pile foundation construction according to claim 8, characterized in that: The bottom of the push rod (44) is conical.

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