Precise positioning device for embedded bolts of assembled prefabricated stair

Abstract

The utility model discloses assembly type prefabricated stair pre -buried bolt precision positioning device, including crane body, the top of crane body makes the support plate move through the fine adjustment mechanism, the surface of support plate is installed and hoists the mechanism for hoisting operation to assembly type prefabricated stair, including in fine adjustment mechanism: fine adjustment subassembly, including the support arm of installation in the top of crane body, the utility model relates to building construction technical field. This assembly type prefabricated stair pre -buried bolt precision positioning device, through servo jar drive hoists the mechanism along X axle to slide, and drive motor drives hoists the mechanism along Y axle to slide, has realized prefabricated stair's precision positioning in horizontal direction, has improved the precision of butt joint with pre -buried bolt greatly, has reduced position deviation whole adjustment process through motor and jar drive, and the degree of automation is higher, and the operation is simple and convenient, has reduced the difficulty and labor intensity of manual operation.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a precise positioning device for pre-embedded bolts in prefabricated staircases. Background Technology

[0002] The reference patent title is: A Balancing Lifting Device for Prefabricated Assembled Staircase Components (Authorization Announcement No.: CN215364463U, Authorization Announcement Date: 2021.12.31). The upper lifting ring of the steel component is connected to the tower crane hook via a sling. A limiting component is provided at the bottom. Two symmetrical lifting lugs are installed at the lower limiting part of the short rod. One lug connects to a steel wire rope with D-type shackles at both ends, while the other lug connects to the steel wire rope via a hand-operated hoist. The two steel wire ropes are locked together by lifting nails pre-embedded within the prefabricated staircase. Before hoisting, the longitudinal level of the prefabricated staircase surface is adjusted using a hand-operated hoist, and the slippage of the wire rope is adjusted by the self-weight of the prefabricated staircase to ensure the lateral horizontal stability of the prefabricated staircase during hoisting. Finally, the tower crane lifts and positions the prefabricated staircase for installation. This equipment reduces the work of construction personnel manually adjusting the staircase posture on the installation site, shortens the rebar positioning time, ensures uniform stress at each hoisting point, and maintains the horizontal and vertical stability of the prefabricated staircase components at all times. The construction process is safe and reliable and has universal applicability.

[0003] Based on the above document: In the construction of prefabricated buildings, the installation of prefabricated stairs requires precise docking with pre-embedded bolts, which places high demands on the positioning accuracy of hoisting equipment. Currently, traditional hoisting equipment is difficult to achieve precise lateral and longitudinal adjustments when hoisting prefabricated stairs, resulting in low docking efficiency between prefabricated stairs and pre-embedded bolts, easy positional deviations, and thus affecting construction quality and progress.

[0004] Existing positioning devices have cumbersome adjustment methods, low adjustment accuracy, and cannot achieve stable sliding adjustment in the X and Y axes during hoisting, thus failing to meet the requirements for precise positioning of pre-embedded bolts in prefabricated stairs. Therefore, this utility model provides a precise positioning device for pre-embedded bolts in prefabricated stairs. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a precise positioning device for pre-embedded bolts in prefabricated stairs, which solves the problem that existing prefabricated stairs are inconvenient to fine-tune during assembly and positioning, thus failing to meet the requirement of precise positioning of pre-embedded bolts in prefabricated stairs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a precise positioning device for prefabricated staircase embedded bolts, comprising a crane body, the top of which is moved by a fine-tuning mechanism to move a support plate, and a hoisting mechanism installed on the surface of the support plate for hoisting the prefabricated staircase. The fine-tuning mechanism includes:

[0007] The fine-tuning component includes a support arm mounted on top of the crane body. A servo electric cylinder is fixedly connected inside the support arm. A connecting arm is fixedly connected to the output end of the servo electric cylinder. The surface of the connecting arm is slidably connected to the inside of the support arm. A bearing plate is fixedly connected to one end of the connecting arm. A positioning rod is fixedly connected to the inner wall of the bearing plate. A positioning block is slidably connected to the surface of the positioning rod. The bottom of the positioning block is fixedly connected to the top of the support plate through a connecting shaft.

[0008] The drive component, located on the surface of the support plate, is used to drive the positioning block to slide.

[0009] Preferably, the drive assembly includes a drive motor mounted on one side of the support plate. One end of the output shaft of the drive motor is fixedly connected to a drive screw via a coupling. The surface of the drive screw is rotatably connected to the interior of the support plate, and the surface of the drive screw is threadedly connected to the interior of the positioning block.

[0010] Preferably, the hoisting mechanism includes a hoisting motor installed on one side of the support plate. One end of the output shaft of the hoisting motor is fixedly connected to a double-acting screw via a coupling. An I-beam is threaded onto the surface of the double-acting screw. A hoisting bracket is fixedly connected to the bottom of the I-beam. A symmetrical rope roller is rotatably connected to the inner wall of the hoisting bracket. A hoisting rope is sleeved on the surface of the rope roller. A hook is installed at one end of the hoisting rope. A rotating gear is fixedly connected to the surface of the rope roller. A control component is provided on one side of the hoisting bracket.

[0011] Preferably, a symmetrical limiting slide rail is installed on the top of the support plate, and the surface of the limiting slide rail is slidably connected to the interior of the I-beam plate.

[0012] Preferably, the surface of the support plate is provided with symmetrical limiting grooves, and the inner surface of the limiting grooves is slidably connected to the surface of the I-beam.

[0013] Preferably, the control assembly includes a control motor mounted on one side of the hoisting bracket, and one end of the output shaft of the control motor is fixedly connected to a control gear via a coupling, wherein the surface of the control gear meshes with the surface of the rotating gear.

[0014] Beneficial effects

[0015] This utility model provides a precise positioning device for pre-embedded bolts in prefabricated assembled stairs. Compared with the prior art, it has the following advantages:

[0016] 1. This prefabricated staircase pre-embedded bolt precision positioning device uses a servo electric cylinder to drive the hoisting mechanism to slide along the X-axis and a drive motor to drive the hoisting mechanism to slide along the Y-axis, achieving precise horizontal positioning of the prefabricated staircase. This greatly improves the accuracy of docking with the pre-embedded bolts and reduces positional deviation. The entire adjustment process is driven by a motor and electric cylinder, with a high degree of automation, simple and convenient operation, and reduced difficulty and labor intensity of manual operation.

[0017] 2. The prefabricated staircase pre-embedded bolt precision positioning device, through the setting of a hoisting mechanism, can quickly and flexibly adjust the distance between the hooks on both sides under the drive of the hoisting motor, thereby better adapting to the hoisting and positioning of prefabricated staircases of different sizes. Through the limit slide rail and limit slide groove, it plays a good role in limiting and guiding the movement of the hoisting mechanism, ensuring the stability of the prefabricated staircase during hoisting and adjustment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the external structure of this utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the surface structure of the support plate of this utility model;

[0020] Figure 3 This is a cross-sectional view of the internal structure of the support plate of this utility model;

[0021] Figure 4 This is a cross-sectional view of the internal structure of the support arm of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the hoisting bracket of this utility model.

[0023] In the diagram: 1-Crane body, 2-Fine-adjustment mechanism, 21-Fine-adjustment component, 211-Support arm, 212-Servo electric cylinder, 213-Connecting arm, 214-Bearing plate, 215-Positioning rod, 216-Positioning block, 22-Drive component, 221-Drive motor, 222-Drive screw, 3-Support plate, 4-Lifting mechanism, 41-Lifting motor, 42-Double screw, 43-I-beam plate, 44-Lifting bracket, 45-Rope roller, 46-Lifting rope, 47-Rotating gear, 48-Control component, 481-Control motor, 482-Control gear, 5-Limit slide rail, 6-Limit slide groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This utility model provides a technical solution:

[0026] A precise positioning device for prefabricated staircase embedded bolts includes a crane body 1. The top of the crane body 1 is moved by a fine-tuning mechanism 2, which moves a support plate 3. A hoisting mechanism 4 is installed on the surface of the support plate 3 for hoisting the prefabricated staircase. The fine-tuning mechanism 2 includes:

[0027] The fine-tuning component 21 includes a support arm 211 installed on the top of the crane body 1. A servo electric cylinder 212 is fixedly connected inside the support arm 211. A connecting arm 213 is fixedly connected to the output end of the servo electric cylinder 212. The surface of the connecting arm 213 is slidably connected to the inside of the support arm 211. A bearing plate 214 is fixedly connected to one end of the connecting arm 213. A positioning rod 215 is fixedly connected to the inner wall of the bearing plate 214. A positioning block 216 is slidably connected to the surface of the positioning rod 215. The bottom of the positioning block 216 is fixedly connected to the top of the support plate 3 through a connecting shaft.

[0028] The drive component 22 is disposed on the surface of the support plate 214 and is used to drive the positioning block 216 to slide.

[0029] The support arm 213 is a hollow rectangular structure, and a servo electric cylinder 212 of model EC-100 is fixedly connected inside it by bolts.

[0030] In this embodiment, the drive assembly 22 includes a drive motor 221 mounted on one side of the support plate 214. One end of the output shaft of the drive motor 221 is fixedly connected to a drive screw 222 via a coupling. The surface of the drive screw 222 is rotatably connected to the interior of the support plate 214, and the surface of the drive screw 222 is threadedly connected to the interior of the positioning block 216.

[0031] The drive motor 221 is a three-phase asynchronous motor.

[0032] The hoisting mechanism 4 is driven to slide along the X-axis by the servo electric cylinder 212, and the hoisting mechanism 4 is driven to slide along the Y-axis by the drive motor 221. This achieves precise positioning of the prefabricated staircase in the horizontal direction, greatly improving the accuracy of docking with the pre-embedded bolts and reducing positional deviation. The entire adjustment process is driven by the motor and electric cylinder, with a high degree of automation, simple and convenient operation, and reduced difficulty and labor intensity of manual operation.

[0033] In this embodiment, the hoisting mechanism 4 includes a hoisting motor 41 installed on one side of the support plate 3. One end of the output shaft of the hoisting motor 41 is fixedly connected to a double-acting screw 42 via a coupling. The surface of the double-acting screw 42 is threadedly connected to an I-beam plate 43. The bottom of the I-beam plate 43 is fixedly connected to a hoisting bracket 44. A symmetrical rope roller 45 is rotatably connected to the inner wall of the hoisting bracket 44. A hoisting rope 46 is sleeved on the surface of the rope roller 45. A hook is installed at one end of the hoisting rope 46. A rotating gear 47 is fixedly connected to the surface of the rope roller 45. A control component 48 is provided on one side of the hoisting bracket 44.

[0034] The hoisting motor 41 is a Y90S-2 model motor; the surface thread of the two-way lead screw 42 has two I-beam plates 43.

[0035] In this embodiment, a symmetrical limiting slide rail 5 is installed on the top of the support plate 3, and the surface of the limiting slide rail 5 is slidably connected to the inside of the I-beam plate 43.

[0036] In this embodiment, the surface of the support plate 3 is provided with a symmetrical limiting groove 6, and the inner surface of the limiting groove 6 is slidably connected to the surface of the I-beam plate 43.

[0037] The limiting slide groove 6 and limiting slide rail 5 ensure that the I-beam plate 43 remains stable during the sliding process.

[0038] In this embodiment, the control component 48 includes a control motor 481 installed on one side of the hoisting bracket 44. One end of the output shaft of the control motor 481 is fixedly connected to a control gear 482 via a coupling. The surface of the control gear 482 meshes with the surface of the rotating gear 47.

[0039] The control motor 481 is a Y71M1-2 motor; the surfaces of the two sets of rope rollers 45 are each equipped with a rotating gear 47; the control gear 482 meshes with the rotating gears 47 on both sides respectively.

[0040] By setting up the hoisting mechanism 4, the distance between the two hooks can be quickly and flexibly adjusted under the drive of the hoisting motor 41, so as to better adapt to the hoisting and positioning of prefabricated stairs of different sizes. The limit slide rail 5 and the limit slide groove 6 play a good role in limiting and guiding the movement of the hoisting mechanism 4, ensuring the stability of the prefabricated stairs during hoisting and adjustment.

[0041] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0042] In use, the hoisting motor 41 is first started to drive the bidirectional lead screw 42 to rotate. The rotation of the bidirectional lead screw 42 causes the I-beams 43 on both sides to slide on the surface of the limit rail 5, so that the I-beams 43 and the hoisting bracket 44 slide synchronously to opposite sides, thereby adjusting the distance between the hooks on both sides to accommodate prefabricated stairs of different sizes. Then, the prefabricated stairs are hooked onto the hooks, and the control motor 481 is started through the control system. The control gear 482 drives two sets of rotating gears 47 and rope rollers 45 to rotate synchronously and in opposite directions, winding up the hoisting rope 46 to lift the prefabricated stairs. The control system starts the servo cylinder 212 to drive the connecting arm 213 to slide inside the support arm 211. The connecting arm 213 drives the bearing plate 214 and the hoisting mechanism 4 to slide along the X-axis, realizing the fine adjustment of the X-axis position in the hoisting state of the prefabricated staircase. Then, the drive motor 221 is started to drive the drive screw 222 to rotate. The rotation of the drive screw 222 will drive the positioning block 216 to slide on the surface of the positioning rod 215, thereby driving the hoisting mechanism 4 to slide along the Y-axis, realizing the fine adjustment of the Y-axis position in the hoisting state of the prefabricated staircase. After the adjustment is completed, the prefabricated staircase is lowered and connected with the pre-embedded bolts.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precise positioning device for prefabricated staircase embedded bolts, comprising a crane body (1), characterized in that: The top of the crane body (1) is moved by a fine-tuning mechanism (2) to move the support plate (3). A hoisting mechanism (4) is installed on the surface of the support plate (3) for hoisting the prefabricated staircase. The fine-tuning mechanism (2) includes: The fine-tuning component (21) includes a support arm (211) installed on the top of the crane body (1). A servo electric cylinder (212) is fixedly connected inside the support arm (211). A connecting arm (213) is fixedly connected to the output end of the servo electric cylinder (212). The surface of the connecting arm (213) is slidably connected to the inside of the support arm (211). A bearing plate (214) is fixedly connected to one end of the connecting arm (213). A positioning rod (215) is fixedly connected to the inner wall of the bearing plate (214). A positioning block (216) is slidably connected to the surface of the positioning rod (215). The bottom of the positioning block (216) is fixedly connected to the top of the support plate (3) through a connecting shaft. A drive assembly (22) is disposed on the surface of a support plate (214) for driving the positioning block (216) to slide.

2. The precise positioning device for prefabricated staircase embedded bolts according to claim 1, characterized in that: The drive assembly (22) includes a drive motor (221) mounted on one side of the support plate (214). One end of the output shaft of the drive motor (221) is fixedly connected to a drive screw (222) via a coupling. The surface of the drive screw (222) is rotatably connected to the interior of the support plate (214), and the surface of the drive screw (222) is threadedly connected to the interior of the positioning block (216).

3. The precise positioning device for prefabricated staircase embedded bolts according to claim 1, characterized in that: The hoisting mechanism (4) includes a hoisting motor (41) installed on one side of the support plate (3). One end of the output shaft of the hoisting motor (41) is fixedly connected to a double-acting screw (42) via a coupling. The surface of the double-acting screw (42) is threaded with an I-beam (43). The bottom of the I-beam (43) is fixedly connected to a hoisting bracket (44). The inner wall of the hoisting bracket (44) is rotatably connected to a symmetrical rope roller (45). The surface of the rope roller (45) is fitted with a hoisting rope (46). One end of the hoisting rope (46) is fitted with a hook. The surface of the rope roller (45) is fixedly connected to a rotating gear (47). A control component (48) is provided on one side of the hoisting bracket (44).

4. The precise positioning device for prefabricated staircase embedded bolts according to claim 3, characterized in that: The top of the support plate (3) is equipped with a symmetrical limiting slide rail (5), and the surface of the limiting slide rail (5) is slidably connected to the inside of the I-beam plate (43).

5. The precise positioning device for prefabricated staircase embedded bolts according to claim 3, characterized in that: The surface of the support plate (3) is provided with a symmetrical limiting groove (6), and the inner surface of the limiting groove (6) is slidably connected to the surface of the I-beam plate (43).

6. The precise positioning device for prefabricated staircase embedded bolts according to claim 3, characterized in that: The control assembly (48) includes a control motor (481) installed on one side of the hoisting bracket (44). One end of the output shaft of the control motor (481) is fixedly connected to a control gear (482) via a coupling. The surface of the control gear (482) meshes with the surface of the rotating gear (47).

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