Prefabricated T-beam moulding bed frame limiting device

Abstract

The utility model provides a limiting device for a prefabricated T-beam moulding bed, and relates to the field of T-beam manufacturing. Comprising two fixed guide rails, and the two fixed guide rails are oppositely arranged and located at the ends of two longitudinal comb-shaped plates of a moulding bed frame; the number of the positioning and locking assemblies is two, and the two positioning and locking assemblies are slidably connected to the two fixed guide rails correspondingly and can be locked to the fixed guide rails; and the limiting assembly is connected between the two sets of positioning and locking assemblies, and the limiting assembly is used for limiting the ends of the longitudinal steel bars. The length of the longitudinal steel bar of the T-beam can be limited, and the limiting position is adjusted, so that the length of the longitudinal steel bar is controlled; manual measurement and hammering are not needed, and the precision and efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the field of T-beam manufacturing, in particular to a prefabricated T-beam formwork limiting device. Background Art

[0002] In the T-beam manufacturing process, the steel frame is tied and welded on the formwork as required, and then the web frame and the top plate frame are hoisted into the formwork in turn for assembly. After the assembly is completed, the formwork is closed and the relevant auxiliary processes are completed, the concrete can be poured.

[0003] Most large prefabricated bridges today use a T-beam structure where the beams are simply supported first and then connected. Each T-beam joint is divided into a first span, a middle span, and a last span, with a total of 2 to 5 spans. Due to the different positions of each beam type within each joint, the length of the end reinforcement varies accordingly, requiring adjustment in the prefabrication yard. Consequently, the length of the longitudinal reinforcement ends varies. The expansion joint ends of the first or last span beams are sealed flat and free of exposed reinforcement. The longitudinal reinforcement length must be carefully controlled on the formwork during the prefabrication process. The continuous joint ends of the mid or side span beams are exposed. After installation, the exposed reinforcement must be butted against the longitudinal reinforcement of the adjacent T-beams, also requiring controlled length.

[0004] However, in the past, there were no refined requirements for the production of the formwork frame. Only the lateral reinforcement of the steel skeleton was considered. The longitudinal reinforcement was still controlled by measuring with a ruler and then hammering it into shape. When the steel skeleton was put into the mold, especially the longitudinal reinforcement at the expansion joint end had deviations and was too long, which interfered with the head plate and required secondary cutting. The old process had shortcomings in control accuracy and was not efficient. Utility Model Content

[0005] The purpose of the utility model is to provide a prefabricated T-beam formwork limiting device, which can limit the length of the T-beam longitudinal steel bars and adjust the limit position to control the length of the longitudinal steel bars; it does not require manual measurement or hammering, and can improve accuracy and efficiency.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A prefabricated T-beam formwork frame limiting device, the limiting device is used to be installed at the end of the T-beam formwork frame, comprising:

[0008] Two fixed guide rails are provided, and the two fixed guide rails are arranged opposite to each other and located at the ends of the two longitudinal comb-shaped plates of the tire mold frame;

[0009] Positioning locking components, wherein the positioning locking components are provided in two groups, and the two groups of positioning locking components are respectively slidably connected to the two fixed guide rails and can be locked to the fixed guide rails;

[0010] A limiting component, which is connected between two groups of the positioning and locking components, and is used for limiting the end of the longitudinal steel bar.

[0011] Further, in the present utility model, the positioning and locking component includes a pulley, a moving plate, a support plate and a locking member. The pulley is rotatably connected to the bottom of the moving plate and slidably connected to the fixed guide rail; the support plate is arranged on one side of the moving plate facing the opposite positioning and locking component, and the bottom of the support plate is bent towards the bottom of the fixed guide rail; the locking member passes through the support plate and locks with the bottom of the fixed guide rail.

[0012] Further, in the present utility model, at least two pulleys are provided, and the two pulleys are rotatably connected to both ends of the bottom of the moving plate.

[0013] Further, in the present utility model, a support frame is provided at the bottom of the fixed guide rail.

[0014] Further, in the present utility model, the locking member includes a locking screw and a locking nut. One end of the locking screw passes through the support plate, and the locking nut is sleeved on the other end of the locking screw.

[0015] Further, in the present utility model, a rotating handle is further provided at one end of the locking screw away from the fixed guide rail.

[0016] Further, in the present utility model, the limiting component includes:

[0017] A first transverse connecting beam, both ends of which are connected to the top of the moving plate, and the first transverse connecting beam is bent downward from the middle;

[0018] A second transverse connecting beam, which is arranged above the first transverse connecting beam and is connected to the first transverse connecting beam through a connecting plate.

[0019] Further, in the present utility model, the cross-sections of the first transverse connecting beam and the second transverse connecting beam are both U-shaped, and a plurality of positioning holes are provided on the sides of the first transverse connecting beam and the second transverse connecting beam close to the steel bar.

[0020] The present utility model has at least the following advantages or beneficial effects:

[0021] In this utility model, by installing two fixed guide rails at the end of the tire mold frame, the positioning and locking assembly is slidably connected to the fixed guide rails, and its position on the fixed guide rails can be adjusted and locked after being adjusted to a proper position; through the limiting assembly connected to the positioning and locking assembly, it moves along with the movement of the positioning and locking assembly, so as to limit the end of the longitudinal steel bar and control the length of the longitudinal steel bar. This application can limit the length of the longitudinal steel bars of the T beam and adjust the position of the limit, thereby controlling the length of the longitudinal steel bars; moreover, it does not require manual measurement and hammering, which can improve the accuracy and efficiency. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of the precast T beam tire mold frame limiting device provided by the embodiment of this application;

[0024] Figure 2 For this application Figure 1 The enlarged schematic diagram of the structure at A;

[0025] Figure 3 It is the front view schematic diagram when the locking part of the embodiment of this application is locked.

[0026] Reference Signs: 1 - Fixed Guide Rail, 11 - Support Frame, 21 - Pulley, 22 - Moving Plate, 23 - Support Plate, 24 - Locking Part, 241 - Locking Screw, 242 - Locking Nut, 243 - Rotating Handle, 31 - First Transverse Connecting Beam, 32 - Second Transverse Connecting Beam, 33 - Positioning Hole, 34 - Connecting Plate. Detailed Embodiments

[0027] To make the objects, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of this utility model. Obviously, the described embodiments are part of the embodiments of this utility model, rather than all of the embodiments. Usually, the components of the embodiments of this utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Accordingly, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts fall within the scope of protection of the present invention.

[0029] Embodiment

[0030] Please refer to Figures 1-3 , which shows a schematic structural diagram of a limiting device for a precast T-beam formwork support in an embodiment of the present invention;

[0031] This embodiment provides a limiting device for a precast T-beam formwork support. The limiting device is used to be installed at the end of the T-beam formwork support and includes:

[0032] Fixed guide rails 1. There are two fixed guide rails 1, and the two fixed guide rails 1 are arranged oppositely and are located at the ends of the two longitudinal comb-shaped plates of the formwork support.

[0033] Positioning and locking components. There are two groups of positioning and locking components. The two groups of positioning and locking components are respectively slidably connected to the two fixed guide rails 1 and can be locked to the fixed guide rails 1.

[0034] Limiting components. The limiting components are connected between the two groups of positioning and locking components, and the limiting components are used to limit the ends of the longitudinal steel bars.

[0035] Next, a limiting device for a precast T-beam formwork support in this exemplary embodiment will be further described.

[0036] In some embodiments of the present application, there are two fixed guide rails 1 as described above. The two fixed guide rails 1 are arranged oppositely and are located at the ends of the two longitudinal comb-shaped plates of the formwork support. The length direction of the fixed guide rails 1 is the same as the length direction of the longitudinal comb-shaped plates. The fixed guide rails 1 are fixed to the ground through support frames 11, playing a role of guiding the movement of the positioning and locking components.

[0037] In some embodiments of the present application, there are two groups of positioning and locking components as described above. The two groups of positioning and locking components are respectively slidably connected to the two fixed guide rails 1 and can be locked to the fixed guide rails 1. The positioning and locking components are used to drive the limiting components to move on the fixed guide rails 1, thereby adjusting the position of the limiting components, and further enabling the limiting components to control the length of the longitudinal steel bars.

[0038] As a preferred embodiment, the above-mentioned positioning and locking assembly includes a pulley 21, a moving plate 22, a supporting plate 23 and a locking member 24. The pulley 21 is rotatably connected to the bottom of the moving plate 22 and slidably connected to the fixed guide rail 1; the supporting plate 23 is arranged on one side of the moving plate 22 facing the positioning and locking assembly on the opposite side, and the bottom of the supporting plate 23 is bent towards the bottom of the fixed guide rail 1; the locking member 24 passes through the supporting plate 23 and is locked with the bottom of the fixed guide rail 1. A bending portion is provided at the bottom of the moving plate 22 so that the locking member 24 can be locked and fixed with the bottom of the fixed guide rail 1 through the moving plate 22.

[0039] Specifically, push the moving plate 22, and move it on the fixed guide rail 1 through the pulley 21 at its bottom. After reaching the appropriate position, lock it to the bottom of the fixed guide rail 1 through the locking member 24 to fix it, so that the limiting assembly is fixed at the appropriate position to limit the longitudinal steel bars. Among them, the above-mentioned appropriate position is set according to the drawing dimensions of the precast T-beam, and marks can be made in advance on the fixed guide rail 1. After adjusting to the place, lock the locking member 24.

[0040] As a preferred embodiment, at least two pulleys 21 are provided, and the two pulleys 21 are rotatably connected to both ends of the bottom of the moving plate 22. By providing two pulleys 21, the moving stability of the positioning and locking assembly on the fixed guide rail 1 is improved.

[0041] [[ID=Q]]As a preferred embodiment, the locking member 24 includes a locking screw 241 and a locking nut 242. One end of the locking screw 241 passes through the supporting plate 23, and the locking nut 242 is sleeved on the other end of the locking screw 241. When locking, rotate the locking screw 241 to abut against the bottom of the fixed guide rail 1, and then tighten the locking nut 242 to fix it; when adjusting, loosen the locking nut 242 and rotate the locking screw 241 in the reverse direction to separate it from the fixed guide rail 1, so that the pulley 21 can move on the fixed guide rail 1.

[0042] Furthermore, in order to facilitate the operation of the staff, a rotating handle 243 is provided at the end of the locking screw 241 away from the fixed guide rail 1, so that it is convenient for the staff to hold and apply force, which is labor-saving and improves efficiency.

[0043] In some embodiments of the present application, the above-mentioned limiting assembly is connected between two groups of positioning and locking assemblies, and the limiting assembly is used to limit the end of the longitudinal steel bar. The limiting assembly adjusts its position under the drive of the movement of the positioning and locking assembly, so as to realize the control of the length of the longitudinal steel bar.

[0044] As a preferred embodiment, the above-mentioned limiting component includes: a first transverse connecting beam 31, both ends of the first transverse connecting beam 31 are connected to the top of the moving plate 22, and the first transverse connecting beam 31 is bent downward from the middle; a second transverse connecting beam 32, the second transverse connecting beam 32 is arranged above the first transverse connecting beam 31 and is connected to the first transverse connecting beam 31 through a connecting plate 34. The ends of longitudinal steel bars at different heights are limited by the first transverse connecting beam 31 and the second transverse connecting beam 32 respectively, so as to control the length of the longitudinal steel bars.

[0045] Specifically, the cross-sections of the first transverse connecting beam 31 and the second transverse connecting beam 32 are both U-shaped, and a plurality of positioning holes 33 are formed on the sides of the first transverse connecting beam 31 and the second transverse connecting beam 32 close to the steel bars. That is, the first transverse connecting beam 31 and the second transverse connecting beam 32 include two opposite side plates, and one of the side plates is provided with positioning holes 33 for the longitudinal steel bars to pass through, which can control the layout spacing of the longitudinal steel bars, and the other side plate limits and abuts against the end of the longitudinal steel bar. By adjusting the position of the connecting beam, the control of the length of the longitudinal steel bar is realized.

[0046] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A precast T-beam formwork limiting device, the limiting device is used to be installed at the end of the T-beam formwork, and is characterized in that, Including: Fixed guide rails, there are two of the fixed guide rails, and the two fixed guide rails are arranged oppositely and located at the ends of the two longitudinal comb-shaped plates of the tire mold frame; Positioning and locking components, there are two groups of the positioning and locking components, and the two groups of positioning and locking components are respectively slidably connected to the two fixed guide rails and can be locked to the fixed guide rails; Limiting components, the limiting components are connected between the two groups of positioning and locking components, and the limiting components are used for limiting the ends of the longitudinal steel bars.

2. The precast T-beam formwork limiting device according to claim 1, characterized in that, The positioning and locking component includes a pulley, a moving plate, a support plate and a locking piece. The pulley is rotatably connected to the bottom of the moving plate and slidably connected to the fixed guide rail; the support plate is arranged on one side of the moving plate facing the positioning and locking component on the opposite side, and the bottom of the support plate is bent towards the bottom of the fixed guide rail; the locking piece passes through the support plate and is locked with the bottom of the fixed guide rail.

3. The precast T-beam formwork limiting device according to claim 2, wherein At least two pulleys are provided, and the two pulleys are rotatably connected to both ends of the bottom of the moving plate.

4. The precast T-beam formwork limiting device according to claim 1, characterized in that, A support frame is provided at the bottom of the fixed guide rail.

5. The precast T-beam formwork limit device according to claim 2, characterized in that, The locking piece includes a locking screw and a locking nut. One end of the locking screw passes through the support plate, and the locking nut is sleeved on the other end of the locking screw.

6. The precast T-beam formwork limit device according to claim 5, characterized in that, A rotating handle is further provided at the end of the locking screw away from the fixed guide rail.

7. The precast T-beam formwork limit device according to claim 2, characterized in that, The limiting component includes: A first transverse connecting beam, both ends of the first transverse connecting beam are connected to the top of the moving plate, and the first transverse connecting beam is bent downward from the middle; A second transverse connecting beam, the second transverse connecting beam is arranged above the first transverse connecting beam and is connected to the first transverse connecting beam through a connecting plate.

8. The precast T-beam formwork limit device according to claim 7, characterized in that, The cross sections of the first transverse connecting beam and the second transverse connecting beam are both U-shaped, and a plurality of positioning holes are provided on the sides of the first transverse connecting beam and the second transverse connecting beam close to the steel bars.

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