A hoisting device for precast slab production

Abstract

This utility model relates to a hoisting device for precast slab production, comprising a horizontal pipe and two vertical pipes. The two vertical pipes are symmetrically and fixedly connected to the left and right sides of the horizontal pipe. A lifting ring is fixedly installed at the top of each of the two vertical pipes. An adjusting mechanism is provided on each of the two vertical pipes, and a lifting rod is fixedly installed at the bottom of each of the two adjusting mechanisms. A positioning mechanism is also provided on each of the two adjusting mechanisms. With this hoisting device for precast slab production, the operator first connects the chain to the lifting rings using a lock, and then hoists the horizontal pipe and the two vertical pipes directly above the precast slab. Then, the two adjusting mechanisms are used to adjust the positions of the four lifting rods according to the width of the precast slab, and the positioning mechanism is used to position the adjusting mechanisms. The precast slab is then placed flat on top of the four lifting rods, and finally, a crane is used to hoist the precast slab to the designated position. The operation is simple, time-saving, and labor-saving, improving the efficiency of use.

Description

Technical Field

[0001] This utility model relates to the field of precast slab production technology, specifically to a hoisting device for precast slab production. Background Technology

[0002] Precast slabs are floor slab components prefabricated in factories or production bases, made of materials such as cast-in-place concrete, reinforced concrete, lightweight concrete, and steel plates. Precast slabs can be classified into various types according to the materials used, including precast concrete slabs, light steel precast slabs, and polystyrene precast slabs. After production, precast slabs are transported to designated locations using hoisting equipment for subsequent processes, thus improving production efficiency.

[0003] According to Chinese Utility Model Patent Application No. 202220326327.8, a precast slab hoisting device is proposed. The utility model describes that "in use, the precast slab hoisting device of this utility model hooks four hooks to the bottom ends of the precast slab. The telescopic longitudinal rod is set longitudinally along the length of the precast slab, the telescopic horizontal rod is set laterally along the width of the precast slab, and the telescopic vertical rod is set vertically along the height of the precast slab. Then, the hoisting equipment lifts the precast slab hoisting device and the precast slab together through the lifting joint 8. The telescopic longitudinal rod is adjustable to accommodate precast slabs of different lengths. The telescopic horizontal rod is adjustable to accommodate precast slabs of different widths. The telescopic vertical rod is adjustable to accommodate precast slabs of different heights. This precast slab hoisting device has a simple structure, is easy to use, has strong adaptability, and can improve construction safety."

[0004] The current precast slab hoisting device requires the second buckle structure to be moved out of the interior of the transverse connecting rod before hoisting precast slabs of different widths. Then, the two transverse adjusting rods and the two hooks are moved horizontally and symmetrically to the designated positions. Finally, the second buckle structure is inserted into the interior of the transverse connecting rod. The operation is cumbersome, time-consuming, and labor-intensive, which affects the performance. Therefore, an improvement is needed. This paper proposes a hoisting device for precast slab production to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a hoisting device for precast slab production, which has advantages such as easy adjustment and solves the problems of cumbersome operation, time-consuming and labor-intensive operation, and poor performance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hoisting device for precast slab production, comprising a horizontal pipe and two vertical pipes, the two vertical pipes being symmetrically and fixedly connected to the left and right sides of the horizontal pipe, a lifting ring being fixedly installed on the top of each of the two vertical pipes, an adjustment mechanism being provided on each of the two vertical pipes, a lifting rod being fixedly installed at the bottom of each of the two adjustment mechanisms, and a positioning mechanism being provided on each of the two adjustment mechanisms;

[0007] The positioning mechanism includes a chamber, which is fixedly connected to the side wall of the adjustment mechanism. A spring is fixedly installed on the inner side wall of the chamber. A second movable plate is fixedly installed on the side of the spring away from the inner side wall of the chamber. A second movable rod is fixedly installed on one side of the second movable plate. A movable block is fixedly installed on the side of the second movable rod away from the second movable plate, passing through the chamber and fixedly installed thereon. A positioning block that passes through the adjustment mechanism and extends into the longitudinal tube is fixedly installed on the other side of the second movable plate.

[0008] Furthermore, the horizontal tube is located in the middle of the two vertical tubes, and the horizontal tube and the two vertical tubes form an I-shape.

[0009] Furthermore, there are four lifting rings, which are symmetrically fixed to the top of the two longitudinal tubes.

[0010] Furthermore, the adjustment mechanism includes a first threaded rod, which is rotatably connected to the inner wall of the longitudinal tube via a bearing. A second threaded rod is fixedly installed on the side of the first threaded rod away from the longitudinal tube. A knob is fixedly installed on the side of the second threaded rod away from the first threaded rod, which passes through the longitudinal tube. The threads of the first and second threaded rods are opposite in direction. Threaded sleeves are threadedly installed on the outer sides of both the first and second threaded rods. The bottoms of both threaded sleeves pass through the longitudinal tube and are fixedly installed with first moving rods. A moving hole matching the first moving rod is opened at the bottom of the longitudinal tube. A first moving plate is fixedly installed at the bottom of both first moving rods.

[0011] Furthermore, there are four lifting rods, which are respectively fixedly connected to the bottom of the four first movable plates.

[0012] Furthermore, the knob has multiple positioning holes that match the moving block inside, and the longitudinal tube has positioning grooves that match the moving block inside.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] This hoisting device for precast slab production is equipped with horizontal pipes, vertical pipes, lifting rings, an adjustment mechanism, lifting rods, and a positioning mechanism. The adjustment mechanism facilitates the symmetrical movement of the two lifting rods to the designated position, and the positioning mechanism facilitates the positioning of the adjustment mechanism. The operation is relatively simple, saving time and effort and improving the efficiency of use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the positioning mechanism of this utility model.

[0019] In the diagram: 1. Horizontal tube; 2. Vertical tube; 3. Lifting ring; 4. Adjustment mechanism; 41. First threaded rod; 42. Second threaded rod; 43. Knob; 44. Threaded sleeve; 45. First moving rod; 46. First moving plate; 5. Lifting rod; 6. Positioning mechanism; 61. Chamber body; 62. Spring; 63. Second moving plate; 64. Second moving rod; 65. Moving block; 66. Positioning block. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4This embodiment of a hoisting device for precast slab production includes a horizontal pipe 1 and two vertical pipes 2. The two vertical pipes 2 are symmetrically fixedly connected to the left and right sides of the horizontal pipe 1. The horizontal pipe 1 is located in the middle of the two vertical pipes 2, forming an I-shape with the horizontal pipe 1 and the two vertical pipes 2. Two lifting rings 3 are fixedly installed on the top of each of the two vertical pipes 2. The four lifting rings 3 are symmetrically fixedly connected to the top of the two vertical pipes 2. An adjustment mechanism 4 is provided on each of the two vertical pipes 2. A lifting rod 5 is fixedly installed at the bottom of each of the two adjustment mechanisms 4. The lifting rod 5 has an L-shaped cross-section. The top of each of the four lifting rods 5 is provided with anti-slip texture. The shape of the four anti-slip textures is wavy, and the depth is 1-3 mm. The materials of the horizontal pipe 1, the vertical pipes 2, and the lifting rods 5 are all 316 stainless steel. The adjustment mechanism 4 is used to adjust the position of the lifting rods 5. A positioning mechanism 6 is provided on each of the two adjustment mechanisms 4. The positioning mechanism 6 is used to position the adjustment mechanism 4.

[0022] Specifically, the chain is first connected to the lifting ring 3 via a lock, and the horizontal pipe 1 and two vertical pipes 2 are hoisted directly above the precast slab. Then, the positions of the four lifting rods 5 are adjusted according to the width of the precast slab using two adjusting mechanisms 4, and the adjusting mechanisms 4 are positioned using a positioning mechanism 6. The precast slab is then placed flat on top of the four lifting rods 5, and finally, the precast slab is hoisted to the designated position using a crane. The operation is relatively simple, saves time and effort, and improves the efficiency of use.

[0023] In this embodiment, the adjustment mechanism 4 includes a first threaded rod 41, which is rotatably connected to the inner wall of the longitudinal tube 2 via a bearing. A second threaded rod 42 is fixedly installed on the side of the first threaded rod 41 away from the longitudinal tube 2. A knob 43 is fixedly installed on the side of the second threaded rod 42 away from the first threaded rod 41 through the longitudinal tube 2. The threads of the first threaded rod 41 and the second threaded rod 42 are opposite in direction. Threaded sleeves 44 are threadedly installed on the outside of both the first threaded rod 41 and the outside of the second threaded rod 42. The bottoms of the two threaded sleeves 44 penetrate the longitudinal tube 2 and are fixedly installed with first moving rods 45. The bottom of the longitudinal tube 2 is provided with a moving hole that matches the first moving rods 45. The bottoms of the two first moving rods 45 are fixedly installed with first moving plates 46. Four lifting rods 5 are respectively fixedly connected to the bottoms of the four first moving plates 46.

[0024] Specifically, by rotating the knob 43, the knob 43 drives the second threaded rod 42 and the first threaded rod 41 to rotate, so that the two threaded sleeves 44 drive the two first moving rods 45 and the two first moving plates 46 to move relative to each other or in opposite directions.

[0025] In this embodiment, the positioning mechanism 6 includes a chamber 61, which is fixedly connected to the side wall of the adjustment mechanism 4. A spring 62 is fixedly installed on the inner side wall of the chamber 61. A second moving plate 63 is fixedly installed on the side of the spring 62 away from the inner side wall of the chamber 61. A second moving rod 64 is fixedly installed on one side of the second moving plate 63. A moving block 65 is fixedly installed on the side of the second moving rod 64 away from the second moving plate 63, passing through the chamber 61. A positioning block 66 is fixedly installed on the other side of the second moving plate 63, passing through the knob 43 and extending into the interior of the longitudinal tube 2. The knob 43 has eight positioning holes that match the moving block 65. The eight positioning holes are evenly distributed in a ring. The number of positioning holes can be set according to actual needs. The longitudinal tube 2 has a positioning groove that matches the moving block 65.

[0026] Specifically, by pulling the moving block 65, the moving block 65 drives the second moving rod 64, the second moving plate 63, and the positioning block 66 to move linearly. The spring 62 is compressed by force. When the positioning block 66 moves out of the interior of the longitudinal tube 2, the knob 43 is released from its position. By releasing the moving block 65, the spring 62 returns to its original deformation. The spring 62 drives the second moving plate 63 and the positioning block 66 to move linearly. When the positioning block 66 is inserted into the interior of the longitudinal tube 2, the knob 43 is positioned.

[0027] The working principle of the above embodiments is as follows:

[0028] The workers first connect the chain to the lifting ring 3 using the buckle, and then hoist the horizontal pipe 1 and the two vertical pipes 2 directly above the precast slab. Next, they pull the moving block 65, which drives the second moving rod 64, the second moving plate 63, and the positioning block 66 to move linearly. The spring 62 is compressed, causing the positioning block 66 to move out of the interior of the vertical pipe 2. This releases the positioning of the knob 43, which is then rotated. The knob 43 drives the second threaded rod 42 and the first threaded rod 41 to rotate, and the two threaded sleeves 44 drive the two... After the first moving rod 45, the two first moving plates 46, and the two lifting rods 5 are moved to the designated position in opposite directions, the moving block 65 is released, the spring 62 returns to its original deformation, and the spring 62 drives the second moving plate 63 and the positioning block 66 to move linearly, so that the positioning block 66 is inserted into the interior of the longitudinal tube 2 to position the knob 43. Then, the precast slab is placed flat on top of the four lifting rods 5. Finally, the precast slab is lifted to the designated position by a crane. The operation is relatively simple, saves time and effort, and improves the usage effect.

[0029] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] 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 hoisting device for precast slab production, comprising a horizontal pipe (1) and two vertical pipes (2), the two vertical pipes (2) being symmetrically fixedly connected to the left and right sides of the horizontal pipe (1), a lifting ring (3) being fixedly installed on the top of each of the two vertical pipes (2), an adjusting mechanism (4) being provided on each of the two vertical pipes (2), and a lifting rod (5) being fixedly installed on the bottom of each of the two adjusting mechanisms (4), characterized in that: Both of the adjustment mechanisms (4) are provided with positioning mechanisms (6); The positioning mechanism (6) includes a chamber (61), which is fixedly connected to the side wall of the adjustment mechanism (4). A spring (62) is fixedly installed on the inner side wall of the chamber (61). A second moving plate (63) is fixedly installed on the side of the spring (62) away from the inner side wall of the chamber (61). A second moving rod (64) is fixedly installed on one side of the second moving plate (63). A moving block (65) is fixedly installed on the side of the second moving rod (64) away from the second moving plate (63) through the chamber (61). A positioning block (66) is fixedly installed on the other side of the second moving plate (63) through the adjustment mechanism (4) and extending into the longitudinal tube (2).

2. The hoisting device for precast slab production according to claim 1, characterized in that: The horizontal tube (1) is located in the middle of the two vertical tubes (2), and the horizontal tube (1) and the two vertical tubes (2) form an I-shape.

3. The hoisting device for precast slab production according to claim 1, characterized in that: The number of lifting rings (3) is four, and the four lifting rings (3) are symmetrically fixed to the top of the two longitudinal tubes (2).

4. The hoisting device for precast slab production as claimed in claim 1, characterized in that: The adjustment mechanism (4) includes a first threaded rod (41), which is rotatably connected to the inner wall of the longitudinal tube (2) via a bearing. A second threaded rod (42) is fixedly installed on the side of the first threaded rod (41) away from the longitudinal tube (2). A knob (43) is fixedly installed on the side of the second threaded rod (42) away from the first threaded rod (41) through the longitudinal tube (2). The thread directions of the first threaded rod (41) and the second threaded rod (42) are opposite. Threaded sleeves (44) are threadedly installed on the outside of both the first threaded rod (41) and the outside of the second threaded rod (42). The bottom of both threaded sleeves (44) passes through the longitudinal tube (2) and is fixedly installed with a first moving rod (45). A moving hole matching the first moving rod (45) is opened at the bottom of the longitudinal tube (2). A first moving plate (46) is fixedly installed at the bottom of both first moving rods (45).

5. The hoisting device for precast slab production according to claim 4, characterized in that: The number of lifting rods (5) is four, and the four lifting rods (5) are respectively fixedly connected to the bottom of the four first moving plates (46).

6. The hoisting device for precast slab production as claimed in claim 4, characterized in that: The knob (43) has multiple positioning holes that match the moving block (65) inside, and the longitudinal tube (2) has a positioning groove that matches the moving block (65) inside.

Images