A quick hoisting device for prefabricated inspection well

Abstract

The utility model discloses a kind of quick hoisting device of prefabricated inspection well, including hub disc, the top of the hub disc is equipped with load-bearing member to connect external crane, the bottom of hub disc is equipped with several straight line sliding table, straight line sliding table extends along the radial direction of hub disc, and straight line sliding table is annular array along the center of hub disc;The sliding end of each straight line sliding table is fixedly connected with movable arm, and driving assembly is equipped on hub disc, driving assembly is all transmission connection with straight line sliding table, to drive movable arm mutually far away or mutually close together;The end of each movable arm is connected with lifting claw support, and lifting claw support is relatively swinged with movable arm, and self-locking type unhooking is equipped on lifting claw support, to be locked with the lifting pin pre-buried on inspection well cooperation.The utility model can improve the hoisting adaptability and hoisting efficiency of prefabricated inspection well.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated inspection well hoisting technology, and in particular to a rapid hoisting device for prefabricated inspection wells. Background Technology

[0002] The rapid hoisting of prefabricated manholes is one of the key factors in combining standardized factory production with on-site assembly construction, which greatly improves the efficiency, quality, safety and environmental friendliness of the project.

[0003] Existing prefabricated manhole rapid hoisting devices typically refer to tooling systems that use cranes (or excavators) in conjunction with special lifting tools (such as flexible slings, balance beams, or self-locking hooks) to grab and place the manhole body. Although they can achieve rapid hoisting of prefabricated manholes, they still have the drawbacks of the lifting tools being difficult to adapt to manholes of different specifications and shapes, and the replacement process being cumbersome.

[0004] Therefore, there is an urgent need to research and develop a rapid hoisting device for prefabricated inspection wells to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this utility model is to provide a rapid hoisting device for prefabricated inspection wells, which can improve the adaptability and efficiency of hoisting prefabricated inspection wells.

[0006] To achieve the above objectives, this utility model provides a rapid hoisting device for prefabricated inspection wells, the specific implementation of which is as follows:

[0007] A rapid hoisting device for prefabricated inspection wells includes a hub, the top of which is provided with a load-bearing component for connecting an external crane, and the bottom of which is provided with a plurality of linear slides extending in the radial direction of the hub and arranged in a ring array around the center of the hub.

[0008] Each linear slide is fixedly connected to a movable arm at its sliding end. The hub is equipped with a drive assembly, which is connected to all linear slides in a transmission manner to drive the movable arms to move away from or towards each other.

[0009] Each movable arm is connected to a claw support at its end. The claw support swings relative to the movable arm. The claw support is equipped with a self-locking shackle to lock into the pre-embedded lifting nails on the inspection well.

[0010] This utility model discloses a rapid hoisting device for prefabricated inspection wells. Compared with the prior art, it uses a linear slide table with an annular array at the bottom of the hub to drive the movable arms to move synchronously radially, achieving synchronous approach or distance of all movable arms. This allows for rapid, precise, and balanced clamping of prefabricated inspection wells of different sizes. The swingable claw support at the end of the movable arm and the self-locking shackle structure on the claw support allow the clamping angle to be adjusted by swinging the claw support, enabling the self-locking shackle to quickly lock with the pre-embedded lifting nails on the prefabricated inspection well. This improves the adaptability and efficiency of hoisting prefabricated inspection wells.

[0011] In some embodiments, the drive assembly includes a bevel gear transmission box and a servo motor. The bevel gear transmission box is located at the center of the bottom of the hub, and the servo motor is located at the top of the hub. The motor shaft of the servo motor passes through the hub and is connected to the bevel gear transmission box. Each linear slide is connected to the bevel gear transmission box.

[0012] By employing a servo motor and bevel gear transmission box, synchronous and precise control of all linear slides is achieved, enabling each movable arm to move precisely and synchronously. This ensures uniform force distribution and center alignment when clamping manholes of different sizes, improving the stability of the clamping process and the accuracy of size adaptation.

[0013] In some embodiments, the outer peripheral wall of the bevel gear transmission box is provided with a transmission rod, and each transmission rod is connected to a linear slide.

[0014] By setting transmission rods on the outer peripheral wall of the bevel gear transmission box and connecting them to each linear slide, the synchronicity and consistency of power transmission are ensured, enabling each movable arm to maintain perfect radial symmetrical movement. This ensures that centrally symmetrical clamping can be achieved for manholes of different diameters, improving clamping stability and the reliability of size adaptation.

[0015] In some embodiments, a cross laser emitter is provided at the bottom center of the hub to project a red crosshair in the direction of the inspection well.

[0016] By setting a cross laser emitter at the bottom center of the hub, a precise positioning baseline can be projected downwards, allowing operators to intuitively align the manhole installation position and ensure the correct positioning of the manhole body and foundation during hoisting. This indirectly improves the docking accuracy between the clamping device and the manhole, providing visual guidance for the rapid and accurate clamping of manholes of different sizes.

[0017] In some embodiments, the load-bearing component has a first mounting reference plane and a second mounting reference plane that are perpendicular to each other. Both the first mounting reference plane and the second mounting reference plane are perpendicular to the vertical axis of the crane hook. A bubble level is provided on both the first mounting reference plane and the second mounting reference plane.

[0018] By setting bubble levels on the first and second mounting reference planes, the attitude and level of the hoisting device can be monitored in real time, ensuring that it remains level during the clamping process of any size manhole, preventing uneven force due to tilting, and improving the safety and stability of clamping.

[0019] In some embodiments, each of the movable arms is provided with an ultrasonic ranging sensor at its bottom, with the detection end of the ultrasonic ranging sensor facing directly below the hub and the detection direction parallel to the vertical axis of the crane hook.

[0020] By installing ultrasonic ranging sensors at the bottom of each movable arm, the height data of each clamping point can be detected in real time, providing operators with accurate leveling basis and ensuring that manholes of different sizes remain horizontal during hoisting, thus improving the stability and safety of clamping.

[0021] In some embodiments, each of the movable arms is provided with a protective cover at its bottom, the ultrasonic ranging sensor is provided inside the protective cover, and the bottom of the protective cover is provided with a through groove corresponding to the detection end of the ultrasonic ranging sensor.

[0022] By installing a protective cover with through grooves at the bottom of each movable arm, the ultrasonic ranging sensor is effectively protected from collisions and contamination, while ensuring the normal transmission of measurement signals. This ensures that reliable height measurement data can be obtained under different working conditions, providing continuous and reliable data support for the stable clamping of manholes of various sizes.

[0023] In some embodiments, each of the movable arms is provided with a ball joint at its end, which is connected to the claw support.

[0024] By using a ball joint to connect the movable arm and the claw support, the shackle can adaptively adjust its angle in multiple degrees of freedom, ensuring perfect docking and locking even when faced with positional deviations of pre-embedded nails on manholes of different sizes, thus improving the adaptability and reliability of the clamping device.

[0025] In some embodiments, the self-locking shackle includes a shackle body in the shape of a U or Ω, which is used to fit onto a lifting nail pre-embedded in the outer wall of the inspection well. The open end of the shackle body is fixedly connected to the lifting claw support. A locking pin is provided on the side of the shackle body away from the center of the hub. The locking pin is screwed to the shackle body, and a ratchet and pawl mechanism is fitted on the locking pin. The rotation of the ratchet and pawl mechanism enables the locking pin to rotate into the shackle body and abut against the outer wall of the inspection well, thereby achieving rapid locking of the inspection well during hoisting.

[0026] By adopting a self-locking shackle with a ratchet and pawl mechanism, quick locking and reliable self-locking with the manhole lifting nails are achieved, ensuring that no accidental loosening will occur during the hoisting of manholes of various sizes, thus improving the safety of clamping and operational efficiency.

[0027] Based on the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0028] The movable arms move synchronously radially via a linear slide table in a ring array at the bottom of the hub, enabling all movable arms to move closer or further apart simultaneously. This allows for rapid, precise, and balanced clamping of prefabricated manholes of different sizes. The swingable claw supports at the ends of the movable arms, along with the self-locking shackle structure on the claw supports, allow the clamping angle to be adjusted by swinging the claw supports. This enables the self-locking shackle to quickly lock into the pre-embedded lifting pins on the prefabricated manhole, improving the adaptability and efficiency of lifting prefabricated manholes. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a side sectional view of the present invention;

[0031] Figure 3 This is a schematic diagram of the ratchet and pawl mechanism of this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Hub; 110. Load-bearing component; 111. First mounting reference plane; 112. Second mounting reference plane; 120. Bubble level; 130. Linear slide; 200. Servo motor; 300. Bevel gear transmission box; 310. Transmission rod; 400. Movable arm; 410. Ball joint; 500. Lifting claw support; 600. Self-locking shackle; 610. Shackle body; 620. Locking pin; 621. Handle; 630. Ratchet and pawl mechanism; 631. Ratchet; 632. Pawl; 633. First spring; 634. Second spring; 635. Stop pawl; 700. Cross laser emitter; 800. Ultrasonic ranging sensor; 900. Protective cover. Detailed Implementation

[0034] To facilitate understanding of this utility model, the specific embodiments of this utility model will be described in more detail below with reference to the accompanying drawings.

[0035] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0036] Unless otherwise specified or defined, the term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0037] It should be noted that in this article, "fixed to" or "connected to" can mean directly fixed to or connected to a component, or indirectly fixed to or connected to a component.

[0038] refer to Figure 1-2 As shown, the rapid hoisting device for prefabricated inspection wells provided in this embodiment includes a hub 100. The top of the hub 100 is provided with a load-bearing component 110 for connecting an external crane. The bottom of the hub 100 is provided with a plurality of linear slides 130. The linear slides 130 extend along the radial direction of the hub 100 and are arranged in a ring array along the center of the hub 100.

[0039] Each linear slide 130 has a movable arm 400 fixedly connected to its sliding end. The hub 100 is equipped with a drive assembly, which is connected to all linear slides 130 in a transmission manner to drive the movable arms 400 to move away from or towards each other.

[0040] Each movable arm 400 is connected to a claw support 500 at its end. The claw support 500 swings relative to the movable arm 400. The claw support 500 is equipped with a self-locking shackle 600 to lock into the pre-embedded lifting nails on the inspection well.

[0041] In some embodiments, the drive assembly includes a bevel gear transmission box 300 and a servo motor 200. The bevel gear transmission box 300 is located at the bottom center of the hub 100, and the servo motor 200 is located at the top of the hub 100. The motor shaft of the servo motor 200 passes through the hub 100 and is connected to the bevel gear transmission box 300 for transmission. Each linear slide 130 is connected to the bevel gear transmission box 300 for transmission.

[0042] By employing a servo motor 200 in conjunction with a bevel gear transmission box 300, synchronous and precise control of all linear slides 130 is achieved, enabling each movable arm 400 to move precisely and synchronously. This ensures uniform force distribution and center alignment when clamping manholes of different sizes, thereby improving the stability of the clamping process and the accuracy of size adaptation.

[0043] In some embodiments, the outer peripheral wall of the bevel gear transmission box 300 is provided with transmission rods 310, and each transmission rod 310 is connected to a linear slide 130.

[0044] By setting transmission rods 310 on the outer peripheral wall of the bevel gear transmission box 300 and connecting them to each linear slide 130, the synchronicity and consistency of power transmission are ensured, enabling each movable arm 400 to maintain perfect radial symmetrical movement. This ensures that central symmetrical clamping can be achieved for inspection wells of different diameters, improving the stability of clamping and the reliability of size adaptation.

[0045] In some embodiments, a cross laser emitter 700 is provided at the bottom center of the hub 100 to project a red cross line in the direction of the inspection well.

[0046] By setting a cross laser emitter 700 at the bottom center of the hub 100, a precise positioning baseline can be projected downwards, allowing operators to intuitively align the manhole installation position and ensure the correct positioning of the manhole body and foundation during hoisting. This indirectly improves the docking accuracy between the clamping device and the manhole, providing visual guidance for the rapid and accurate clamping of manholes of different sizes.

[0047] In some embodiments, the load-bearing component 110 has a first mounting reference plane 111 and a second mounting reference plane 112 that are perpendicular to each other. Both the first mounting reference plane 111 and the second mounting reference plane 112 are perpendicular to the vertical axis of the crane hook. A bubble level 120 is provided on both the first mounting reference plane 111 and the second mounting reference plane 112.

[0048] By setting bubble level 120 on the first mounting reference plane 111 and the second mounting reference plane 112, the attitude level of the hoisting device can be monitored in real time, ensuring that it can maintain a horizontal state during the clamping process of any size manhole, preventing uneven force due to tilting, and improving the safety and stability of clamping.

[0049] In some embodiments, each of the movable arms 400 is provided with an ultrasonic ranging sensor 800 at its bottom, with the detection end of the ultrasonic ranging sensor 800 facing directly below the hub 100 and the detection direction parallel to the vertical axis of the crane hook.

[0050] By installing ultrasonic ranging sensors 800 at the bottom of each movable arm 400, the height data of each clamping point can be detected in real time, providing operators with accurate leveling basis and ensuring that inspection wells of different sizes always maintain a horizontal posture during hoisting, thus improving the stability and safety of clamping.

[0051] In some embodiments, each of the movable arms 400 is provided with a protective cover 900 at its bottom, the ultrasonic ranging sensor 800 is provided inside the protective cover 900, and the bottom of the protective cover 900 is provided with a through groove corresponding to the detection end of the ultrasonic ranging sensor 800.

[0052] By setting a protective cover 900 with a through groove at the bottom of each movable arm 400, the ultrasonic ranging sensor 800 is effectively protected from collision and contamination, and the normal transmission of measurement signals is ensured. This ensures that reliable height measurement data can be obtained under different working conditions, providing continuous and reliable data support for the stable clamping of manholes of various sizes.

[0053] In some embodiments, each of the movable arms 400 is provided with a ball hinge 410 at its end, the ball hinge 410 being connected to the claw support 500.

[0054] By using a ball joint 410 to connect the movable arm 400 and the claw support 500, the shackle can adaptively adjust its angle in multiple degrees of freedom, ensuring perfect docking and locking even when faced with positional deviations of pre-embedded nails on manholes of different sizes, thus improving the adaptability and reliability of the clamping device.

[0055] In some embodiments, the self-locking shackle 600 includes a shackle body 610, which is U-shaped or Ω-shaped and is used to fit onto the lifting nails pre-embedded on the outer wall of the inspection well. The open end of the shackle body 610 is fixedly connected to the lifting claw support 500. A locking pin 620 is provided on the side of the shackle body 610 away from the center of the hub 100. The locking pin 620 is screwed to the shackle body 610, and a ratchet and pawl mechanism 630 is fitted on the locking pin 620. The rotation of the ratchet and pawl mechanism 630 enables the locking pin 620 to rotate into the shackle body 610 and abut against the outer wall of the inspection well, thereby achieving rapid locking of the inspection well during hoisting.

[0056] By adopting a self-locking shackle 600 with a ratchet and pawl mechanism 630, quick locking and reliable self-locking with the manhole lifting nails are achieved, ensuring that no accidental loosening will occur during the lifting of manholes of various sizes, thus improving the safety of clamping and operational efficiency.

[0057] refer to Figure 3As shown, the ratchet and pawl mechanism 630 described in this embodiment adopts the ratchet and pawl mechanism 630 of the prior art, including a ratchet 631 sleeved on the locking pin 620, a pawl 632 connected to the handle 621 on the locking pin 620, and a stop pawl rotatably connected to the shackle body 610. A first spring 633 is provided on the pawl 632, and the other end of the first spring 633 is connected to the shackle body 610 by a screw. The pawl 632 follows the rotation of the handle 621 and engages with the tooth groove on the ratchet 631. A second spring 634 is provided on the stop pawl, and the other end of the second spring 634 is connected to the shackle body 610 by a screw. Connected to the shackle body 610, the end of the stop pawl engages with the toothed groove on the ratchet 631. In actual use, the rotation of the handle 621 drives the ratchet 631 to rotate from one toothed groove to another. The rotation of the ratchet 631 compresses the second spring 634, causing the stop pawl to disengage from the toothed groove and then engage with the other toothed groove under the elastic action of the second spring 634. This achieves the tightening of the locking pin 620 and the shackle body 610, ensuring that the locking pin 620 and the outer wall of the inspection well are in contact to achieve clamping and fixing. The structure of the ratchet 631 also prevents the ratchet 631 from reversing, achieving self-locking.

[0058] The rapid hoisting device for prefabricated inspection wells provided in this embodiment, compared with the prior art, drives the movable arms 400 to move radially synchronously through the linear slides 130 of the annular array at the bottom of the hub 100, so that all the movable arms 400 move closer or further apart synchronously, adapting to the rapid, precise and balanced clamping of prefabricated inspection wells of different specifications and sizes; the swingable claw support 500 and the self-locking shackle 600 structure on the claw support 500 at the end of the movable arm 400 adjust the clamping angle by swinging the claw support 500, so that the self-locking shackle 600 can quickly lock with the pre-embedded lifting nails on the prefabricated inspection well, which can improve the hoisting adaptability and hoisting efficiency of prefabricated inspection wells.

[0059] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A rapid hoisting device for prefabricated inspection wells, characterized in that, Includes a hub (100), the top of which is provided with a load-bearing member (110) for connecting an external crane, and the bottom of which is provided with a plurality of linear slides (130), the linear slides (130) extending along the radial direction of the hub (100), and the linear slides (130) forming a ring array along the center of the hub (100); Each linear slide (130) has a movable arm (400) fixedly connected to its sliding end. The hub (100) is provided with a drive assembly. The drive assembly is connected to all linear slides (130) in a transmission manner to drive the movable arms (400) to move away from or towards each other. Each movable arm (400) is connected to a claw support (500) at its end. The claw support (500) swings relative to the movable arm (400). The claw support (500) is equipped with a self-locking shackle (600) to lock into the pre-embedded nails on the inspection well.

2. The rapid hoisting device for prefabricated inspection wells as described in claim 1, characterized in that, The drive assembly includes a bevel gear transmission box (300) and a servo motor (200). The bevel gear transmission box (300) is located at the center of the bottom of the hub (100), and the servo motor (200) is located at the top of the hub (100). The motor shaft of the servo motor (200) passes through the hub (100) and is connected to the bevel gear transmission box (300) for transmission. Each linear slide (130) is connected to the bevel gear transmission box (300) for transmission.

3. The rapid hoisting device for prefabricated inspection wells as described in claim 2, characterized in that, The outer peripheral wall of the bevel gear transmission box (300) is provided with transmission rods (310), and each transmission rod (310) is connected to a linear slide (130).

4. The rapid hoisting device for prefabricated inspection wells as described in any one of claims 1-3, characterized in that, The hub (100) is equipped with a cross laser emitter (700) at the bottom center, which projects a red cross line in the direction of the inspection well.

5. The rapid hoisting device for prefabricated inspection wells as described in claim 4, characterized in that, The load-bearing component (110) has a first mounting reference plane (111) and a second mounting reference plane (112) that are perpendicular to each other. Both the first mounting reference plane (111) and the second mounting reference plane (112) are perpendicular to the vertical axis of the crane hook. Both the first mounting reference plane (111) and the second mounting reference plane (112) are equipped with bubble level (120).

6. The rapid hoisting device for prefabricated inspection wells as described in claim 5, characterized in that, Each of the movable arms (400) is equipped with an ultrasonic ranging sensor (800) at its bottom. The detection end of the ultrasonic ranging sensor (800) faces directly below the hub (100), and the detection direction is parallel to the vertical axis of the crane hook.

7. The rapid hoisting device for prefabricated inspection wells as described in claim 6, characterized in that, Each of the movable arms (400) has a protective cover (900) at its bottom. The ultrasonic ranging sensor (800) is located inside the protective cover (900), and the bottom of the protective cover (900) has a through groove corresponding to the detection end of the ultrasonic ranging sensor (800).

8. The rapid hoisting device for prefabricated inspection wells as described in any one of claims 1-3, characterized in that, Each of the movable arms (400) is provided with a ball joint (410) at its end, which is connected to the claw support (500).

9. The rapid hoisting device for prefabricated inspection wells as described in claim 8, characterized in that, The self-locking shackle (600) includes a shackle body (610), which is U-shaped or Ω-shaped and is used to be fitted onto the pre-embedded lifting nails on the outer wall of the inspection well. The open end of the shackle body (610) is fixedly connected to the lifting claw support (500). A locking pin (620) is provided on the side of the shackle body (610) away from the center of the hub (100). The locking pin (620) is screwed to the shackle body (610), and a ratchet and pawl mechanism (630) is fitted on the locking pin (620). The locking pin (620) is screwed into the shackle body (610) and abuts against the outer wall of the inspection well by rotating the ratchet and pawl mechanism (630), so as to realize the quick locking of the inspection well during hoisting.

Images