Two-layer prefabricated slab fixing and hoisting tool
By designing a two-layer precast slab fixing and hoisting fixture, and utilizing hoisting components and connecting components to achieve simultaneous hoisting of two precast slabs, the problem of slow construction progress in existing technologies is solved, and construction efficiency and safety are improved.
Patent Information
- Application Number
- CN202423255788.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-28
AI Technical Summary
When the existing urban rail transit track engineering uses the "direct laying method" for the construction of precast slab track beds, the precast slabs need to be hoisted onto the track vehicle first, and only one precast slab can be hoisted at a time, which results in a slow construction progress.
Design a two-layer precast slab fixing and hoisting fixture, including hoisting components and connecting components. Through the combination of hoisting plates, bolts, slides and wire ropes, two precast slabs can be hoisted at one time, and the stability is improved by the cooperation of sliding plates and clamping plates.
It improves the efficiency of precast slab hoisting, reduces construction time, enhances the stability and safety of the hoisting process, and reduces safety risks caused by swaying or tilting.
Smart Images
Figure CN223646118U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of urban rail transit technology, and in particular to a two-layer precast slab fixing and hoisting fixture. Background Technology
[0002] Precast slab hoisting fixtures are equipment and tools used in building construction to hoist and fix precast concrete slabs. The height and angle of the hook are adjusted according to the suspension position of the precast slab to ensure a firm connection between the slab and the hook. The wire rope connects the hook and the slab to ensure stability and safety during the hoisting process.
[0003] In the current construction of precast slab track beds for urban rail transit projects using the "direct laying method," the precast slabs need to be hoisted onto the track vehicle first. According to the hoisting tools provided by the manufacturer, only one precast slab can be hoisted at a time, resulting in slow construction progress. In order to complete the hoisting of precast slabs quickly and improve the construction progress, it is necessary to provide a two-layer precast slab fixing hoisting tool to improve the efficiency of hoisting and laying. Utility Model Content
[0004] The purpose of this utility model is to provide a two-layer precast slab fixing and hoisting tool to solve the problem mentioned in the background art. In the existing "direct laying method" for the construction of precast slab track beds in urban rail transit track engineering, the precast slabs need to be hoisted onto the track vehicle first. According to the hoisting tools provided by the manufacturer, only one precast slab can be hoisted at a time, which is slow. In order to quickly complete the hoisting work of precast slabs and improve the construction progress, this utility model aims to provide a two-layer precast slab fixing and hoisting tool to solve the problem mentioned in the background art.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a two-layer precast slab fixing and hoisting fixture, comprising:
[0007] The hoisting assembly includes a hoisting plate, fixing holes, a first bolt, and a first threaded hole. The hoisting plate is set in pairs, with two sets in total, located on the front and rear sides of both ends of the first precast slab. The fixing holes are opened at the lower end of the hoisting plate. The threads of the first bolt pass through the fixing holes. The first threaded holes are opened at the four corners of the first precast slab, and the ends of the first bolts extend into the first threaded holes.
[0008] The connecting assembly includes a movable groove and a first sliding plate. The movable groove is located on the upper and lower sides of the fixing hole and is opened on the surface of the lifting plate. Both sets of lifting plates are provided with movable grooves, and the first sliding plate is slidably installed in the lower movable groove.
[0009] Furthermore, a groove is provided at the upper end of the lifting plate, and a second bolt is slidably installed inside the groove.
[0010] Furthermore, it also includes a second threaded hole, which is opened at the four corners of the second precast plate, and the end of the second bolt extends into the second threaded hole.
[0011] Furthermore, a steel wire rope is attached to the lower end of the hoisting plate, and the steel wire rope passes through the top of the hoisting plate.
[0012] Furthermore, it also includes a connecting assembly, which includes a clamping plate and a rotating roller. The clamping plate is fixed to the middle of one end of the first slide plate, and the rotating roller rotates through the middle of the upper surface of the first slide plate.
[0013] Furthermore, a second sliding plate is slidably inserted through the lower movable groove of the lifting plate, and a slot is provided in the middle of one end of the second sliding plate, with the slot and the plate corresponding to each other.
[0014] Compared with existing technologies, the advantages of this utility model are:
[0015] I. This utility model, through the setting of a first precast slab, a second precast slab, and a hoisting assembly, allows for the hoisting of precast slabs. First, two sets of hoisting slabs are placed on the ground. Then, the first threaded hole of the first precast slab is aligned with the fixing hole and fixed with the matching first bolt. Next, the second precast slab is placed on the first precast slab, and the second threaded hole on the surface of the second precast slab is aligned with the sliding groove and fixed with the matching second bolt. All four hoisting positions of the precast slab are fixed in the same way. Finally, a steel wire rope is passed through the bottom of the four hoisting slabs, and the precast slab is lifted and placed on a railcar. Two precast slabs can be hoisted at a time, saving construction time for precast slab hoisting.
[0016] II. Based on the first beneficial effect, by using the connecting components, before placing the first precast slab into the middle of the hoisting slab, the workers can engage the first and second sliding plates together, so that the locking plates are inserted into the locking slots. This allows the first and second sliding plates, together with the first bolt, to simultaneously lift the first precast slab, improving the stability of the hoisting. Furthermore, the lower surface of the second precast slab also has the first and second sliding plates. When unloading the first precast slab, the first and second sliding plates are first pulled to the sides, and the rotating roller contacts the bottom surface of the first precast slab, making it easy to pull out the first and second sliding plates. Through the combined use of the sliding plates and locking plates, the stability of the precast slab during the hoisting process is increased, reducing the safety risks caused by shaking or tilting. Workers can easily complete the unloading of the precast slab. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a first-person perspective schematic diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the hoisting assembly of this utility model;
[0020] Figure 3 This is an exploded view of the hoisting assembly of this utility model;
[0021] Figure 4 This is a structural diagram of the connecting component of this utility model.
[0022] The following is a list of components represented by each number in the attached diagram:
[0023] 21. Lifting plate; 22. Fixing hole; 23. First bolt; 24. First threaded hole; 25. Slide groove; 26. Second bolt; 27. Second threaded hole; 28. Wire rope;
[0024] 31. Movable groove; 32. First slide plate; 33. Card plate; 34. Rotating roller; 35. Second slide plate; 36. Card slot. Detailed Implementation
[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0029] Please see Figures 1 to 4 As shown, this embodiment is a two-layer precast slab fixing and hoisting fixture, including:
[0030] The hoisting assembly includes a hoisting plate 21, a fixing hole 22, a first bolt 23, and a first threaded hole 24. The hoisting plates 21 are set in pairs, and there are two sets in total. They are located on the front and rear sides of both ends of the first precast slab, respectively. The fixing hole 22 is opened at the lower end of the hoisting plate 21. The first bolt 23 is threaded through the fixing hole 22. The first threaded hole 24 is opened at the four corners of the first precast slab 11, and the end of the first bolt 23 extends into the first threaded hole 24.
[0031] The fixing hole 22 is opened at the lower end of the lifting plate 21 for installing the first bolt 23 to ensure stability during the lifting process. The thread of the first bolt 23 passes through the fixing hole 22 and matches the first threaded hole 24 on the first precast plate 11. By rotating and tightening, the lifting plate 21 and the first precast plate 11 are firmly connected.
[0032] The upper end of the lifting plate 21 is provided with a sliding groove 25, and a second bolt 26 is slidably installed inside the sliding groove 25. The second threaded holes 27 are opened at the four corners of the second precast plate, and the end of the second bolt 26 extends into the second threaded hole 27. The lower end of the lifting plate 21 is clamped with a wire rope 28, and the wire rope 28 passes through the top of the lifting plate 21.
[0033] The slide 25 is located at the upper end of the lifting plate 21, providing sliding space for the second bolt 26. The second bolt 26 is installed inside the slide 25 and can move along the direction of the slide 25 to meet the lifting requirements of precast slabs of different thicknesses.
[0034] Working principle:
[0035] When hoisting the precast slabs, first place two sets of hoisting slabs 21 on the ground. Then, align the first threaded hole 24 of the first precast slab 11 with the fixing hole 22 and fix it with the matching first bolt 23. Then, place the second precast slab 12 on the first precast slab 11, align the second threaded hole 27 on the surface of the second precast slab 12 with the slide groove 25, and fix it with the matching second bolt 26. Fix the four hoisting empty positions of the precast slab in the same way. Finally, pass the wire rope 28 through the lower end of the four hoisting slabs 21 and finally lift the precast slab and place it on the railcar.
[0036] This step allows two precast slabs to be hoisted at once, saving construction time for precast slab hoisting.
[0037] Please see Figures 1 to 4 As shown; this embodiment, based on the above embodiment, further includes:
[0038] The connecting assembly includes a movable groove 31, a first sliding plate 32, a clamping plate 33, and a rotating roller 34. The movable groove 31 is located on the upper and lower sides of the fixing hole 22 and is opened on the surface of the lifting plate 21. Both sets of lifting plates 21 are provided with movable grooves 31. The first sliding plate 32 is slidably installed in the lower movable groove 31. The clamping plate 33 is fixed in the middle of one end of the first sliding plate 32. The rotating roller 34 rotates through the middle of the upper surface of the first sliding plate 32. The second sliding plate 35 slides through the lower movable groove 31 of the corresponding lifting plate 21. A clamping groove 36 is opened in the middle of one end of the second sliding plate 35. The clamping plate 33 and the clamping groove 36 are directly opposite each other.
[0039] The movable groove 31 is located on the upper and lower sides of the fixing hole 22 and is opened on the surface of the lifting plate 21, allowing the first sliding plate 32 and the second sliding plate 35 to slide in the groove. The clamping plate 33 matches the clamping groove 36. When the two are combined, they can ensure a tight connection between the first sliding plate 32 and the second sliding plate 35, increasing the overall stability. The rotating roller 34 can reduce the friction between the precast plate and the sliding plate, making the lifting process smoother and protecting the surface of the precast plate from damage.
[0040] Working principle:
[0041] Before placing the first precast slab 11 into the middle of the hoisting plate 21, the workers snap the first sliding plate 32 and the second sliding plate 35 together, so that the clamping plate 33 is inserted into the slot 36, so that the first sliding plate 32, the second sliding plate 35 and the first bolt 23 lift the first precast slab 11 together, which improves the stability of hoisting. The lower surface of the second precast slab 12 also has the first sliding plate 32 and the second sliding plate 35. When unloading the first precast slab 11, the first sliding plate 32 and the second sliding plate 35 are first pulled to both sides, and the rotating roller 34 contacts the bottom surface of the first precast slab 11, which makes it easy to pull out the first sliding plate 32 and the second sliding plate 35.
[0042] This step, through the combined use of the sliding plate and the clamp 33, increases the stability of the precast slab during hoisting, reduces the safety risks caused by shaking or tilting, and allows workers to easily complete the unloading of the precast slab.
[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0044] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A two-layer precast slab fixing and hoisting fixture, characterized in that, include: The hoisting assembly includes a hoisting plate (21), a fixing hole (22), a first bolt (23), and a first threaded hole (24). The hoisting plate (21) is set in pairs, and there are two sets in total, located on the front and rear sides of the two ends of the first precast plate. The fixing hole (22) is opened at the lower end of the hoisting plate (21). The first bolt (23) is threaded through the fixing hole (22). The first threaded hole (24) is opened at the four corners of the first precast plate (11), and the end of the first bolt (23) extends into the first threaded hole (24). The connecting component includes a movable groove (31) and a first sliding plate (32). The movable groove (31) is located on the upper and lower sides of the fixing hole (22), and the movable groove (31) is opened on the surface of the lifting plate (21). Both sets of lifting plates (21) are provided with movable grooves (31). The first sliding plate (32) is slidably installed in the lower movable groove (31).
2. The two-layer precast slab fixing and hoisting fixture according to claim 1, characterized in that, The upper end of the hoisting plate (21) is provided with a sliding groove (25), and a second bolt (26) is slidably installed inside the sliding groove (25).
3. The two-layer precast slab fixing and hoisting fixture according to claim 1, characterized in that, It also includes a second threaded hole (27), which is opened at the four corners of the second precast plate (12), and the end of the second bolt (26) extends into the second threaded hole (27).
4. The two-layer precast slab fixing and hoisting fixture according to claim 1, characterized in that, The lower end of the hoisting plate (21) is fitted with a wire rope (28), and the wire rope (28) passes through the top of the hoisting plate (21).
5. The two-layer precast slab fixing and hoisting fixture according to claim 1, characterized in that, It also includes a connecting component, which includes a clamping plate (33) and a rotating roller (34). The clamping plate (33) is fixed to the middle of one end of the first slide plate (32), and the rotating roller (34) rotates through the middle of the upper surface of the first slide plate (32).
6. The two-layer precast slab fixing and hoisting fixture according to claim 5, characterized in that, A second sliding plate (35) is slidably passed through the lower movable groove (31) corresponding to the hoisting plate (21). A slot (36) is provided in the middle of one end of the second sliding plate (35), and the card plate (33) and the slot (36) are directly opposite each other.