An adjustable end support component for a keel and its installation structure

Abstract

This utility model discloses an adjustable support component at the end of a keel and its installation structure, including a vertically arranged sleeve, a threaded rod coaxially arranged with the sleeve, and an adjusting nut threadedly installed on the threaded rod. The lower end of the threaded rod extends into the sleeve from the upper end, and the lower end face of the adjusting nut is slidably connected to the upper end face of the sleeve, allowing the adjusting nut to rotate around its axis. A first limiting structure is provided between the threaded rod and the sleeve to limit the axial displacement of the threaded rod, and a second limiting structure is provided between the adjusting nut and the sleeve to limit the radial and axial displacement of the adjusting nut. In use, it is installed between the main keel at the bottom of the beam and the keel at the bottom of the slab. This utility model has a simple structure, is easy to install, easy to adjust, and has a wide range of applications.

Description

Technical Field

[0001] This utility model relates to the field of building structure technology, and in particular to an adjustable end support component of a keel and its installation structure. Background Technology

[0002] In the field of prefabricated buildings, with the popularization of prefabricated floor slabs, in order to make full use of the advantages of prefabricated floor slabs, which mostly have the advantages of no formwork and few supports, the temporary support system that matches them often has a large spacing between the support poles. This results in a large cantilever length at the end of the main keel at the bottom of the slab or a large simply supported span. Especially at the edge beam position, there may be problems with insufficient keel bearing capacity or insufficient stiffness. If no measures are taken on site, it will lead to poor construction quality and safety hazards. At the same time, currently, it is common to use on-site cutting of timber to support the end of the keel or reduce the simply supported span. However, this method requires on-site cutting for each construction, which has a large error, cannot be adjusted, has low efficiency, low turnover, low applicability, many types of components that are easy to lose, and weak bearing capacity. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide an adjustable support component at the end of the keel and its installation structure, which solves the problems of insufficient load-bearing capacity, difficulty in adjustment, low construction efficiency and limited applicability of the existing support system.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An adjustable support component for a keel end includes a vertically arranged sleeve, a threaded rod coaxially arranged with the sleeve, and an adjusting nut threadedly mounted on the threaded rod. The lower end of the threaded rod extends into the sleeve from the upper end, and the lower end face of the adjusting nut is slidably connected to the upper end face of the sleeve, allowing the adjusting nut to rotate around its axis. A first limiting structure is provided between the threaded rod and the sleeve to limit the axial displacement of the threaded rod, and a second limiting structure is provided between the adjusting nut and the sleeve to limit the radial and axial displacement of the adjusting nut.

[0005] As an optimization, the sleeve is formed by welding a first cylindrical body and a second cylindrical body coaxially arranged together, wherein the first cylindrical body is located above the second cylindrical body, and the inner diameter of the first cylindrical body is smaller than the inner diameter of the second cylindrical body, so that the inner wall of the sleeve forms a stepped structure; the diameter of the threaded rod matches the inner diameter of the first cylindrical body, and a circular limiting plate is coaxially welded to its lower end, the diameter of the limiting plate is larger than the diameter of the threaded rod, so that a boss is formed at the connection between the limiting plate and the threaded rod, and the boss cooperates with the stepped structure to form the first limiting structure.

[0006] As an optimization, a groove is provided on the lower end face of the adjusting nut, which is circumferentially around the threaded screw. The adjusting nut is slidably fitted onto the upper end of the sleeve through the groove. The bottom wall of the groove is in contact with the upper end face of the sleeve, and the side wall of the groove is in contact with the outer side wall of the sleeve. The groove and the end of the sleeve cooperate to form the second limiting structure.

[0007] As an optimization, a top support plate is provided at the upper end of the threaded screw, and a base is provided at the lower end of the sleeve.

[0008] As an optimization, the top tray and / or base are U-shaped.

[0009] Based on the aforementioned support components, this utility model also provides an installation structure for an adjustable support component at the end of a keel, including a bottom keel supported at the bottom of the floor slab, a main keel at the bottom of the beam supported at the bottom of the beam, and a support frame supporting the bottom keel and the main keel at the bottom of the beam. It also includes a beam template and reinforcing timbers set on the beam template, and the aforementioned adjustable support component at the end of the keel. The lower end of the sleeve is connected to the main keel at the bottom of the beam through a base, the upper end of the threaded rod is connected to the bottom keel at the bottom of the slab through a top support plate, and the upper part of the sleeve is connected to the reinforcing timbers on the beam template near the sleeve through a U-shaped clamp.

[0010] Compared with the prior art, this application has the following advantages: This utility model, 1. It has a large adjustable range, can adapt to a wide range of beam heights, and has fewer types of components that are easy to find; 2. It adopts a self-locking integrated structure, and the components can be disassembled and assembled as a whole, making the components less likely to be lost; 3. Standardized high-strength steel components are used, resulting in high load-bearing capacity and a high number of reuses; 4. Easy to install and fix, with high installation efficiency. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of the supporting component in this utility model; Figure 2 This is a schematic diagram of the installation structure of the support component in this utility model; In the diagram, 1 is a sleeve, 2 is a threaded rod, 3 is an adjusting nut, 4 is a stepped structure, 5 is a boss, 6 is a slide, 7 is a top support plate, 8 is a base, 9 is a bottom keel of the board, 10 is a bottom main keel of the beam, 11 is a beam formwork, 12 is a reinforcing timber, and 13 is a U-shaped clamp. Detailed Implementation

[0012] The present invention will now be described in further detail with reference to the accompanying drawings.

[0013] For specific implementation: see [link / reference] Figures 1-2 , An embodiment of an adjustable support component at the end of a keel includes a vertically arranged sleeve 1, a threaded rod 2 coaxially arranged with the sleeve 1, and an adjusting nut 3 threadedly installed on the threaded rod 2. A top support plate 7 is provided at the upper end of the threaded rod 2, and a base 8 is provided at the lower end of the sleeve 1. The top support plate 7 and / or the base 8 are U-shaped to facilitate engagement with the bottom keel 9 of the plate and the bottom keel of the beam.

[0014] The lower end of the threaded screw 2 extends into the sleeve 1 from the upper end, and the lower end face of the adjusting nut 3 is slidably connected to the upper end face of the sleeve 1, allowing the adjusting nut 3 to rotate around its axis. By rotating the adjusting nut 3, the axial position of the threaded screw 2 is adjusted, thereby adjusting the support height of the support component to adapt to different beam heights. A first limiting structure is provided between the threaded screw 2 and the sleeve 1 to limit the axial displacement of the threaded screw 2, and a second limiting structure is provided between the adjusting nut 3 and the sleeve 1 to limit the radial and axial displacement of the adjusting nut 3.

[0015] Specifically, the sleeve 1 is formed by welding a first cylindrical body and a second cylindrical body that are coaxially arranged. The first cylindrical body is located above the second cylindrical body, and the inner diameter of the first cylindrical body is smaller than the inner diameter of the second cylindrical body, so that the inner wall of the sleeve 1 forms a stepped structure 4. The diameter of the threaded rod 2 matches the inner diameter of the first cylindrical body, and a circular limiting plate is coaxially welded to its lower end. The diameter of the limiting plate is larger than the diameter of the threaded rod 2, so that a boss 5 is formed at the connection between the limiting plate and the threaded rod 2. The boss 5 cooperates with the stepped structure 4 to form the first limiting structure, which can prevent the threaded rod 2 from slipping out of the sleeve 1 when it moves axially.

[0016] A groove 6 is provided on the lower end face of the adjusting nut 3, which is circumferentially connected to the threaded rod 2. The adjusting nut 3 is slidably fitted onto the upper end of the sleeve 1 through the groove 6. The bottom wall of the groove 6 is in contact with the upper end face of the sleeve 1, and the side wall of the groove 6 is in contact with the outer side wall of the sleeve 1. The groove 6 and the end of the sleeve 1 cooperate to form the second limiting structure, which can transfer the load at the top of the threaded rod 2 to the sleeve 1.

[0017] Based on the above-mentioned supporting components, this utility model also provides an installation structure for an adjustable support component at the end of a keel, including a bottom keel 9 supported at the bottom of the floor slab, a main keel 10 supported at the bottom of the beam, and a support frame supporting the bottom keel 9 and the main keel 10. It also includes a beam template 11 and a reinforcing timber 12 set on the beam template 11, and the adjustable support component at the end of the keel. The lower end of the sleeve 1 is connected to the main keel 10 at the bottom of the beam through a base 8, the upper end of the threaded rod 2 is connected to the bottom keel 9 at the bottom through a top support plate 7, and the upper part of the sleeve 1 is connected to the reinforcing timber 12 on the beam template 11 near the side of the sleeve 1 through a U-shaped clamp 13.

[0018] During implementation, the support frame, slab bottom joists 9, beam bottom main joists 10, beam formwork 11, and reinforcing timber 12 are assembled and installed on-site according to the detailed support drawings. The adjusting nuts 3 of the support components are then adjusted so that the overall height of the support components is slightly greater than the distance between the lower surface of the slab bottom joists 9 and the upper surface of the beam bottom main joists 10. The base 8 of the support components is then placed against the bottom timber on the beam side. The support components are then tilted parallel to the joist direction and placed between the two joists. The top of the support components is gently pushed to make them vertical. The position of the U-shaped clamps 13, matching the diameter of the sleeve 1, is adjusted so that the round holes on the U-shaped clamps 13 overlap with a certain range of the beam side timber. Then, an electric screwdriver is used to screw self-tapping screws into the corresponding round holes of the U-shaped clamps 13, tightening the screw tips onto the beam side timber, thus stabilizing the support components. Finally, the slab bottom formwork is installed or the formwork-free prefabricated floor slab is hoisted and laid. During dismantling, the beam bottom joists can be removed first to allow the support components to be easily removed.

[0019] In summary, this utility model, 1. It has a large adjustable range, can adapt to a wide range of beam heights, and has fewer types of components that are easy to find; 2. It adopts a self-locking integrated structure, and the components can be disassembled and assembled as a whole, making the components less likely to be lost; 3. Standardized high-strength steel components are used, resulting in high load-bearing capacity and a high number of reuses; 4. When used with an electric screwdriver, it can quickly fix the support components, resulting in high installation efficiency.

[0020] Although embodiments of the present invention have been shown and described, those skilled in the art can make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and basis of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. Therefore, the embodiments of the present invention are merely illustrative examples and do not constitute a limitation on the present invention in any way.

Claims

1. A keel end adjustable support member characterized by, The device includes a vertically arranged sleeve, a threaded rod coaxially arranged with the sleeve, and an adjusting nut threadedly mounted on the threaded rod. The lower end of the threaded rod extends into the sleeve from the upper end, and the adjusting nut is rotatably connected to the sleeve and can rotate around its axis. A first limiting structure is provided between the threaded rod and the sleeve to limit the axial displacement of the threaded rod, and a second limiting structure is provided between the adjusting nut and the sleeve to limit the radial and axial displacement of the adjusting nut.

2. A keel end adjustable support member according to claim 1, wherein, The sleeve is formed by welding a first cylindrical body and a second cylindrical body coaxially arranged together. The first cylindrical body is located above the second cylindrical body, and the inner diameter of the first cylindrical body is smaller than the inner diameter of the second cylindrical body, so that the inner wall of the sleeve forms a stepped structure. The diameter of the threaded rod matches the inner diameter of the first cylindrical body, and a circular limiting plate is coaxially welded to its lower end. The diameter of the limiting plate is larger than the diameter of the threaded rod, so that the end of the threaded rod that extends into the sleeve forms a boss. The boss and the stepped structure cooperate to form the first limiting structure.

3. A keel end adjustable support member according to claim 1, wherein, A groove is provided on the lower end face of the adjusting nut, which is circumferentially around the threaded screw. The adjusting nut is sleeved on the upper end of the sleeve through the groove. The bottom wall of the groove is in contact with the upper end face of the sleeve, and the side wall of the groove is in clearance fit with the outer side wall of the sleeve. The groove and the end of the sleeve cooperate to form the second limiting structure.

4. A keel end adjustable support member according to claim 1, wherein, A top support plate is provided at the upper end of the threaded screw, and a base is provided at the lower end of the sleeve.

5. A keel end adjustable support member according to claim 4, wherein, The top support plate and / or base are U-shaped.

6. An installation structure for an adjustable support member at the end of a keel, characterized in that, The system includes a slab bottom joist supported at the bottom of the floor slab, a beam bottom main joist supported at the bottom of the beam, and a support frame supporting the slab bottom joist and the beam bottom main joist. It also includes a beam formwork and reinforcing timbers set on the beam formwork, and an adjustable support member at the end of the joist as described in any one of claims 1-5. The lower end of the sleeve is connected to the beam bottom main joist via a base, the upper end of the threaded rod is connected to the slab bottom joist via a top support plate, and the upper part of the sleeve is connected to the reinforcing timbers on the beam formwork near the sleeve via a U-shaped clamp.

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