Cement precast slab with convenient lifting

Abstract

The utility model relates to cement precast slab technical field discloses a convenient cement precast slab of dress and hang, including precast slab body, precast slab body both ends all are equipped with a plurality of through -hole, a plurality of through -hole inside all are fixedly connected with fixed ring, a plurality of fixed ring bottom wall all are equipped with the guide slot, a plurality of fixed ring inside all are equipped with the limit component, a plurality of limit components all include fixed link, two limit blocks, two springs and two guide blocks, and fixed link is horizontally fixed in fixed ring inside, two limit blocks all are with fixed link activity sleeve joint, two limit blocks are matched with the recess on the both sides of hook respectively, through setting fixed ring at precast slab body both ends, and setting limit component in fixed ring inside, when hook inserts fixed ring, limit component will automatically be clamped into the recess on the both sides of hook, thereby carries out the restriction and fixed to hook, prevents the situation that hook appears to sway or to come off in the hoisting process, and further guarantees the stability in precast slab hoisting process.

Description

Technical Field

[0001] This utility model relates to the field of precast cement slab technology, specifically a precast cement slab that is easy to install and lift. Background Technology

[0002] Precast concrete slabs, as prefabricated concrete building components manufactured in factories, are widely used in modern construction, such as floor slabs and walls. Their manufacturing process typically involves placing reinforcing steel bars in hollow wooden molds, pouring cement, curing, and finally transporting the finished product to the construction site for direct installation. This prefabrication method not only improves construction efficiency but also ensures the consistency of building component quality. However, hoisting is a crucial step in the on-site installation of precast concrete slabs. Due to their considerable weight, precast slabs usually require hoisting equipment to lift them and place them in the designated location. Currently, a common hoisting method involves attaching two lifting ropes to both ends of the precast slab, and then hooking these ropes onto hooks on the hoisting equipment to lift the slab.

[0003] However, this hoisting method has obvious drawbacks: during the hoisting process, the two ends of the precast slab are prone to uneven height, which can cause the precast slab to tilt or sway, increasing the risk of hoisting operations; the process of setting up the hoisting rope and hooking it requires manual operation, which is not only inefficient, but also poses certain operational difficulties and safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide a precast concrete slab that is easy to install and lift, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precast concrete slab that is easy to install and lift, comprising a precast slab body; both ends of the precast slab body are provided with several through holes, each through hole is fixedly connected to a fixing ring, the bottom wall of each fixing ring is provided with a guide groove, and each fixing ring is provided with a limiting component; each limiting component includes a fixing rod, two limiting blocks, two springs, and two guide blocks, the fixing rod is horizontally fixed inside the fixing ring, the two limiting blocks are movably sleeved with the fixing rod, the two limiting blocks are respectively matched with the grooves on both sides of the hook, springs are fixedly connected between the two limiting blocks and the inner wall of the fixing ring, the two springs are respectively sleeved around the fixing rod, and guide blocks are fixedly connected to the bottom ends of the two limiting blocks, and the bottom ends of the two guide blocks are slidably connected to the guide grooves.

[0006] Preferably, each of the plurality of limiting blocks is provided with a sleeve block on opposite sides, the plurality of sleeve blocks are respectively fixed on the inner wall of a plurality of fixing rings, a plug is movably sleeved on one side of each of the plurality of sleeve blocks, one side of each of the plurality of plug blocks is fixedly connected to the center position of the plurality of limiting blocks, an opening is provided at the upper end of each of the plurality of sleeve blocks, a fixing block is fixedly connected to the upper end of the side of each of the plurality of plug blocks located inside the sleeve block, and the upper ends of each of the plurality of fixing blocks extend out of the sleeve block through the opening.

[0007] Preferably, each of the plurality of fixed rings has two mounting blocks fixedly connected to its outer edge, and each of the plurality of mounting blocks has a bolt threadedly connected to one side, with the bolt shank end respectively abutting against one side of the plurality of fixed blocks.

[0008] Preferably, the bottom walls of the plurality of guide blocks are all provided as arc surfaces that cooperate with the guide grooves, and the widths of the plurality of guide blocks are respectively adapted to the widths of the plurality of guide grooves.

[0009] Preferably, the top wall of each of the fixed rings is provided with a positioning groove that matches the hook.

[0010] Compared with existing technologies, by setting fixing rings at both ends of the precast slab body and setting limiting components inside the fixing rings, when the hook is inserted into the fixing ring, the limiting components will automatically engage with the grooves on both sides of the hook, thereby restricting and fixing the hook, preventing the hook from shaking or coming off during hoisting, and thus ensuring the stability of the precast slab during hoisting. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of the fixing ring of this utility model;

[0013] Figure 3 This is a schematic diagram of the limiting component structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the fixing ring structure of this utility model;

[0015] Figure 5 This is a schematic diagram of the hook structure of this utility model.

[0016] In the figure: 1. Precast slab body; 2. Through hole; 3. Fixing ring; 4. Limiting component; 41. Limiting block; 42. Fixing rod; 43. Spring; 44. Guide block; 5. Positioning groove; 6. Insert block; 7. Sleeve block; 8. Opening; 9. Fixing block; 10. Mounting block; 11. Bolt; 12. Guide groove. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-5 The present invention provides the following technical solution:

[0019] Example 1: A precast concrete slab for easy installation and lifting includes a precast slab body 1. Both ends of the precast slab body 1 have several through holes 2, each through hole 2 having a fixed ring 3 fixedly connected inside. The bottom walls of each fixed ring 3 have guide grooves 12, and each fixed ring 3 has a limiting component 4 inside. Each limiting component 4 includes a fixing rod 42, two limiting blocks 41, two springs 43, and two guide blocks 44. The fixing rod 42 is horizontally fixed inside the fixed ring 3. The two limiting blocks 41 are movably sleeved with the fixing rod 42, and each limiting block 41 matches a groove on either side of a hook. Springs 43 are fixedly connected between the fixed ring 3 and the inner wall of the fixed ring 41. The two springs 43 are respectively sleeved around the fixed rod 42. Guide blocks 44 are fixedly connected to the bottom of the two limiting blocks 41. The bottom of the two guide blocks 44 are slidably connected to the guide groove 12. By setting fixed rings 3 at both ends of the precast slab body 1 and setting limiting components 4 inside the fixed rings 3, when the hook is inserted into the fixed ring 3, the limiting components 4 will automatically be inserted into the grooves on both sides of the hook, thereby limiting and fixing the hook, preventing the hook from shaking or falling out during the hoisting process, and thus ensuring the stability of the precast slab during the hoisting process.

[0020] The bottom walls of several guide blocks 44 are all set as arc surfaces that cooperate with the guide grooves 12, and the widths of several guide blocks 44 are respectively adapted to the widths of several guide grooves 12, so as to ensure that the two guide blocks 44 slide stably within the guide grooves 12, thereby ensuring the stability of the two limit blocks 41.

[0021] The top wall of several fixing rings 3 is provided with positioning grooves 5 that match the hook. When the hook is inserted into the fixing ring 3, the upper end of the hook will be inserted into the positioning groove 5, thereby initially positioning the hook and ensuring the stability of the hook.

[0022] In use, the hook is inserted into the fixing ring 3. During insertion, the hook will press against the two limiting blocks 41. The two limiting blocks 41 move in opposite directions under force. During the movement of the two limiting blocks 41, they will press against the two springs 43, causing the upper end of the hook to be inserted into the positioning groove 5 on the top wall of the fixing ring 3 for initial positioning. When the hook is fully inserted into the fixing ring 3, the two limiting blocks 41 correspond to the grooves on both sides of the hook. The two limiting blocks 41 are inserted into the grooves on both sides of the hook by the rebound force of the springs 43, thereby restricting and fixing the hook. The hooks are inserted into the through holes 2 at the four corners of the precast slab. The precast slab is lifted smoothly by the hoisting equipment and the four hooks to prevent the hooks from shaking or falling out during the hoisting process, thus ensuring the stability of the precast slab during hoisting.

[0023] Example 2, the technical solution of which differs from Example 1 includes: a plurality of limiting blocks 41 are provided with sleeve blocks 7 on opposite sides, the plurality of sleeve blocks 7 are respectively fixed on the inner wall of a plurality of fixing rings 3, a plug 6 is movably sleeved on one side of each of the plurality of sleeve blocks 7, one side of each of the plurality of plug 6 is fixedly connected to the center position of the plurality of limiting blocks 41, an opening 8 is provided at the upper end of each of the plurality of sleeve blocks 7, a fixing block 9 is fixedly connected to the upper end of the side of each of the plurality of plug 6 located inside the sleeve block 7, the upper ends of each of the plurality of fixing blocks 9 extend out of the sleeve block 7 through the opening 8, the plug 6 will move synchronously with the limiting blocks 41, the plug 6 will retract inside the sleeve block 7, thereby further ensuring the stability of the limiting blocks 41 when moving and preventing the limiting blocks 41 from deviating;

[0024] Several fixing rings 3 are fixedly connected to two mounting blocks 10 on their outer edges. Several mounting blocks 10 are threaded with bolts 11 on one side. The ends of the bolts 11 are respectively attached to one side of several fixing blocks 9. When the limiting block 41 is inserted into the groove on the outside of the hook, the bolts 11 are rotated so that the ends of the bolts 11 are located on one side of the fixing block 9. The fixing block 9 and the insert block 6 are limited by the screw, so that the limiting block 41 is stably inserted into the groove on the outside of the hook, thereby ensuring the limiting effect of the limiting block 41 and the hook.

[0025] 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 precast concrete slab that is easy to install and lift, characterized in that, Including the precast slab body (1); The precast slab body (1) has several through holes (2) at both ends. Each of the several through holes (2) is fixedly connected with a fixing ring (3). Each of the several fixing rings (3) has a guide groove (12) on its bottom wall. Each of the several fixing rings (3) has a limiting component (4) inside its interior. Each of the aforementioned limiting components (4) includes a fixed rod (42), two limiting blocks (41), two springs (43), and two guide blocks (44). The fixed rod (42) is horizontally fixed inside the fixed ring (3). The two limiting blocks (41) are movably sleeved with the fixed rod (42). The two limiting blocks (41) are respectively matched with the grooves on both sides of the hook. The two limiting blocks (41) are fixedly connected to the inner wall of the fixed ring (3) with springs (43). The two springs (43) are respectively sleeved around the fixed rod (42). The bottom ends of the two limiting blocks (41) are fixedly connected with guide blocks (44). The bottom ends of the two guide blocks (44) are slidably connected to the guide groove (12).

2. The precast concrete slab for easy installation and lifting according to claim 1, characterized in that: Each of the limiting blocks (41) has a sleeve block (7) on its opposite side. Each of the sleeve blocks (7) is fixed on the inner wall of a number of fixing rings (3). Each of the sleeve blocks (7) has an insert block (6) movably fitted on one side. Each of the insert blocks (6) is fixedly connected to the center position of the limiting blocks (41) on one side. Each of the sleeve blocks (7) has an opening (8) at its upper end. Each of the insert blocks (6) has a fixing block (9) fixedly connected to the upper end of the side of the sleeve block (7) located inside the sleeve block (7). Each of the fixing blocks (9) extends out of the sleeve block (7) through the opening (8).

3. The precast concrete slab for easy installation and lifting according to claim 1, characterized in that: Each of the fixed rings (3) has two mounting blocks (10) fixedly connected to its outer edge. Each of the mounting blocks (10) has a bolt (11) threadedly connected to one side. The ends of the bolts (11) are respectively attached to one side of the fixed blocks (9).

4. The precast cement slab that is easy to install and lift according to claim 1, characterized in that: The bottom wall of each of the guide blocks (44) is set as an arc surface that matches the guide groove (12), and the width of each of the guide blocks (44) is adapted to the width of each of the guide grooves (12).

5. A precast concrete slab that is easy to install and lift according to claim 1, characterized in that: The top wall of several of the fixed rings (3) is provided with positioning grooves (5) that match the hooks.

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