A positioning device for bridge pile construction steel casing

Abstract

This invention relates to the field of construction technology, and in particular to a positioning device for steel casings used in bridge pile foundation construction. The invention involves placing the positioning seat in the appropriate position, aligning the steel casing with the positioning groove, and inserting it. 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 groove. Therefore, during insertion, the outer wall of the steel casing contacts the rubber pad of the pushing block. The friction generated between the rubber pad and the steel casing easily pushes the pushing block downwards. As the pushing block slides downwards, it drives the first threaded rod to rotate, which in turn drives the first gear to rotate, which in turn drives the second gear to rotate. Driven by the second gear, the second threaded rod moves downwards, extending out of the sleeve. Simultaneously, the second threaded rod, after rotating and extending, drills into the ground, making the positioning seat more secure during the insertion of the steel casing.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a positioning device for steel casings used in bridge pile foundation construction. Background Technology

[0002] With the development of highways, bridge engineering projects are increasing. Bridge pile foundations, as the most important foundation type in bridge engineering, have developed rapidly and are widely used. During bridge pile foundation construction, bored piles need to be excavated. To prevent borehole collapse and avoid affecting construction progress and safety accidents, protective walls are needed to protect the bored piles during excavation. Due to unstable soil conditions, using reinforced concrete protective walls is quite difficult; therefore, existing technology uses steel casings to protect the bored piles. A steel casing is a hollow cylinder made of sheet metal, fitted to the size of the bored pile. The steel casing stabilizes the borehole wall, prevents collapse, and also isolates surface water, guides the drill bit, fixes the pile position, and protects the original working surface. However, during construction, inaccurate positioning of the steel casing can lead to deformation and damage, affecting the construction progress. Therefore, accurate positioning of the steel casing during construction is crucial.

[0003] Although positioning devices can be used for placement, if the positioning devices are not fixed stably during placement, they are prone to serious displacement, which may result in the steel casing being placed crookedly. Summary of the Invention

[0004] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0005] The purpose of this 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 objectives, the technical solution of the present invention is: a positioning device for steel casing in bridge pile foundation construction, comprising a positioning seat, a positioning groove on the end face of the positioning seat, a plurality of sliding grooves on the inner wall of the positioning groove, the sliding grooves communicating with a first mounting groove, bearings installed at both ends of the sliding grooves, a first threaded rod installed between the bearings, a first gear installed at the upper end of the first threaded rod, the first gear meshing with a second gear, a sleeve provided at the top of the second gear, the sleeve being rotatably connected to the second gear, a second threaded rod provided inside the sleeve, the second threaded rod being threadedly connected to the second gear, the bottom of the second threaded rod being tapered, the bottom of the first mounting groove penetrating the bottom of the positioning seat, a pushing block threadedly connected to the first threaded rod, the pushing block being slidably connected to the sliding groove, and a rubber pad provided on the surface of the pushing block.

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

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

[0009] In some embodiments, the bottom of the positioning seat is provided with a plurality of anti-slip grooves around the positioning slot.

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

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

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

[0013] In some embodiments, the positioning rod is provided with a second mounting groove, the top of the second mounting groove is provided with a second spring, the bottom of the second spring is provided with a push plate, the bottom of the push plate is provided with a push rod, the positioning rod is provided with a connecting groove on both sides, the push rod is hinged with a blade on both sides, one end of the blade protrudes out of the connecting groove, and the bottom of the push rod is provided with a protrusion 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 effects of the present invention are as follows: After placing the positioning seat in the corresponding position, the steel casing is aligned with the positioning groove and inserted. 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 insertion process, the outer wall of the steel casing will contact the rubber pad of the pushing block. Through the friction generated between the rubber pad and the steel casing, the pushing block is easily pushed downwards. During the downward sliding process of the pushing block, the first threaded rod will rotate, causing the first gear to rotate, which in turn drives the second gear to rotate. Under the drive of the second gear, the second threaded rod will move downwards and extend out of the sleeve. At the same time, after the second threaded rod rotates and extends, it will drill into the ground. This makes the positioning seat more secure during the insertion process of the steel casing, preventing displacement during movement. Subsequently, pulling out the steel casing will cause the pushing block to move upwards, causing the second threaded rod to retract, and then it can be removed.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0018] Undoubtedly, such and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and figures.

[0019] To make the above and other objects, features and advantages of the present invention more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0021] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the positioning seat according to some embodiments of the present invention; Figure 2 This is a schematic diagram of the structure inside the chute in some embodiments of the present invention; Figure 3This is a schematic diagram of the structure of the push block according to some embodiments of the present invention; Figure 4 This is a schematic diagram of the bottom structure of the positioning seat according to some embodiments of the present invention; Figure 5 This is a schematic diagram of the structure of the hidden groove in some embodiments of the present invention; Figure 6 This is a schematic diagram of the positioning rod in some embodiments of the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0025] Furthermore, in the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies are not connected through a transitional structure, but rather formed as a whole through a connecting structure. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The specific embodiments of the present invention will now be described 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 on the end face of the positioning seat 1, a plurality of sliding grooves 21 on the inner wall of the positioning groove 2, the sliding grooves 21 communicating with a first mounting groove 22, bearings 23 installed in both ends of the sliding grooves 21, a first threaded rod 24 installed between the bearings 23, a first gear 25 installed at the upper end of the first threaded rod 24, the first gear 25 meshing with a second gear 26, a sleeve 27 provided at the top of the second gear 26, the sleeve 27 being rotatably connected to the second gear 26, a second threaded rod 28 provided inside the sleeve 27, the second threaded rod 28 being threadedly connected to the second gear 26, the bottom of the second threaded rod 28 being tapered, the bottom of the first mounting groove 22 penetrating the bottom of the positioning seat 1, a pushing block 3 threadedly connected to the first threaded rod 24, the pushing block 3 being slidably connected to the sliding groove 21, and a rubber pad 36 provided on the surface of the pushing block 3.

[0030] After placing the positioning seat 1 in the appropriate position, the steel casing is aligned with the positioning groove 2 and inserted. The surface of the pushing 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 insertion, the outer wall of the steel casing contacts the rubber pad 36 of the pushing block 3. The friction generated between the rubber pad 36 and the steel casing easily pushes the pushing block 3 downward. As the pushing block 3 slides downward, it drives the first threaded rod 24 to rotate, which in turn drives the first gear 25 to rotate, which in turn drives the second gear 26 to rotate. Under the drive of the second gear 26, the second threaded rod 28 moves downward and extends out of the sleeve 27. At the same time, the second threaded rod 28 rotates and extends, drilling into the ground. This makes the positioning seat 1 more secure during insertion, preventing displacement during movement. Afterward, pulling out the steel casing will drive the pushing block 3 upward, causing the second threaded rod 28 to retract, and then it can be removed. In addition, the rubber pad 36 on the surface of the pushing block 3 may be damaged during long-term positioning and needs to be inspected and replaced regularly.

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

[0032] According to some embodiments of the present invention, optionally, the surface of the arcuate protrusion 34 is covered with an anti-slip pad 35. This is to increase friction and ensure a better fit against the outer wall of the steel casing.

[0033] According to some embodiments of the present invention, optionally, the bottom of the positioning seat 1 is provided with a plurality of anti-slip grooves 11 around the positioning groove 2. This increases the anti-slip properties between the bottom of the positioning seat 1 and the ground, preventing displacement.

[0034] Optionally, according to some embodiments of the present invention, the positioning seat 1 is provided with a hidden seat 12 around its perimeter, and a sliding plate 13 is provided inside the hidden seat 12. A pulley 14 is installed at 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 passes through a threaded hole 15 to the top of the positioning seat 1. The rotation of the threaded rod is controlled to push the sliding plate 13, causing it to move up and down, thereby driving the pulley 14 to extend and retract. This facilitates transportation, and when it reaches the designated position, it can be retracted for placement or hoisted to the designated position.

[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. This facilitates the rotation of the threaded rod to raise and lower the pulley 14.

[0036] According to some embodiments of the present invention, optionally, the bottom of the positioning base 1 is provided with a plurality of positioning rods 4 around the anti-slip groove 11. This allows it to be embedded in the soil, thereby increasing its positioning accuracy.

[0037] According to some embodiments of the present invention, optionally, the positioning rod 4 is provided with a second mounting groove 41, 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, and a connecting groove 45 is provided on both sides of the positioning rod 4. A blade 46 is hinged to both sides of the push rod 44, one end of the blade 46 protruding from the connecting groove 45, and the bottom of the push rod 44 protruding from 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, and the blade 46 will unfold under the push and then be stuck into the ground for effective positioning. When pulled out, the spring will push the push rod 44 to reset, allowing the blade 46 to tilt and reset. In addition, the positioning rod 4 is assembled by screws in half, which facilitates the entry of soil from the connecting groove 45 for good cleaning during positioning and embedding. The blade 46 is also provided for better embedding into the ground.

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

[0039] According to some embodiments of the invention, optionally, the bottom of the push rod 44 is tapered, facilitating 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 be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0041] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

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

Claims

1. A positioning device for steel casings used in bridge pile foundation construction, characterized in that, include: A positioning seat (1) has a positioning groove (2) on its end face. The inner wall of the positioning groove (2) has multiple sliding grooves (21). The sliding grooves (21) are connected to a first mounting groove (22). Bearings (23) are installed in both ends of the sliding grooves (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) meshes with a second gear (26). A sleeve (27) is provided on the top of the second gear (26). The sleeve (27) is rotatably connected to the second gear (26). A second threaded rod (28) is provided inside the sleeve (27). The second threaded rod (28) is threadedly connected to the second gear (26). The bottom of the threaded rod (28) is tapered. The bottom of the first mounting groove (22) passes through the bottom of the positioning seat (1). The first threaded rod (24) is threaded with a push block (3). The push block (3) is slidably connected to the slide groove (21). The surface of the push block (3) is provided with a rubber pad (36). After the positioning seat (1) is placed in the corresponding position, the steel sleeve 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). The rubber pad (36) will protrude from the inner wall of the positioning groove (2). During the insertion process, the outer wall of the steel sleeve will contact the rubber pad (36) of the push block (3). Through the friction generated by the rubber pad (36) and the steel sleeve, the push block (3) is pushed down.

2. The positioning device for steel casing in bridge pile foundation construction according to claim 1, characterized in that: The push block (3) is provided with a placement groove (31), 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 covered with an anti-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 multiple anti-slip grooves (11) around 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 its perimeter. 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). 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: The third threaded rod (16) has rotating rods on both sides of its top.

7. The positioning device for steel casing in bridge pile foundation construction according to claim 4, characterized in that: The bottom of the positioning seat (1) is provided with multiple positioning rods (4) 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: The positioning rod (4) is provided with a second mounting groove (41), the top of the second mounting groove (41) is provided with a second spring (42), the bottom of the second spring (42) is provided with a push plate (43), the bottom of the push plate (43) is provided with a push rod (44), the positioning rod (4) is provided with a connecting groove (45) on both sides, and the push rod (44) is hinged with a blade (46) on both sides. One end of the blade (46) protrudes out of the connecting groove (45), and the bottom of the push rod (44) protrudes out of 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 tapered.

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