A support frame for heat shrinking U-shaped insulated steel bars

Abstract

This utility model relates to the field of U-shaped insulated steel bar production, and particularly to a support frame for heat shrinking U-shaped insulated steel bars. The support frame includes a frame component with a through groove. Within the through groove are several positioning components for holding and fixing the U-shaped steel bars. These positioning components are connected to the frame component. Each positioning component abuts against the end of an insulating sleeve. The bottom of the frame component has a first support beam and a second support beam for connection to a conveyor chain of a heating machine. The first and second support beams are spaced apart. By abutting against the end of the insulating sleeve with the positioning components, the insulating sleeve is limited, thereby restricting the relative displacement between the insulating sleeve and the U-shaped steel bar before heat shrinking. This ensures that the insulating sleeve is positioned accurately on the U-shaped steel bar after heat shrinking, guaranteeing that the produced U-shaped insulated steel bars meet quality requirements and improving the quality of railway construction.

Description

Technical Field

[0001] This utility model relates to the field of U-shaped insulated steel bar production, and in particular to a support frame for heat shrinking U-shaped insulated steel bars. Background Technology

[0002] In railway construction, the binding of reinforcing cages is typically required before the pouring of track slabs. In certain railway projects, specific requirements are placed on the insulation treatment of the reinforcing bars within the track slab to ensure the stable operation of the railway signal transmission system. The core purpose is to prevent the magnetic and inductive interference generated by the reinforcing bars from affecting signal transmission, avoiding short circuits in the track circuit caused by the reinforcing bars forming circuit loops, thus ensuring the normal operation of the track circuit. During the binding and fixing of the reinforcing cage, the upper and lower layers of the track slab reinforcing cage need to be connected using U-shaped reinforcing bars. Similarly, these U-shaped reinforcing bars also need to be insulated to prevent conductivity between the upper and lower reinforcing cage layers. Specifically, such as... Figure 1 As shown, the U-shaped steel bar consists of a first bent section 101, a second bent section 102, and a connecting section 103. The two ends of the connecting section are connected to the first bent section and the second bent section respectively to form a U-shaped structure. To achieve its insulation function, heat-shrinkable insulating sleeves need to be fitted onto the first bent section 101, the second bent section 102, and the connecting section 103 respectively. The insulating sleeves are fixed in the corresponding positions through a heat-shrinking process, thereby forming a U-shaped insulated steel bar. Currently, the heat-shrinking equipment equipped on construction sites is mainly designed for straight steel bars. When heat-shrinking straight steel bars, the two ends of the straight steel bars are usually placed on a conveyor chain to allow them to smoothly enter the heat-shrinking mechanism to complete the heat-shrinking process of the insulating sleeves. When heat-shrinking U-shaped steel bars is required, due to the special shape of the U-shaped steel bars, additional support plates need to be set on the conveyor chain to assist them in entering the heat-shrinking mechanism.

[0003] However, due to the large gap between the U-shaped steel bar and the insulating sleeve before heat shrinking, the insulating sleeve is prone to displacement on the U-shaped steel bar when the transmission chain vibrates, resulting in the final U-shaped insulated steel bar failing to meet the actual use requirements in terms of quality. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, which has a large gap between the U-shaped steel bar and the insulating sleeve, and the insulating sleeve is prone to displacement on the U-shaped steel bar when the transmission chain vibrates. This invention provides a support bracket for heat shrinking U-shaped insulating steel bars.

[0005] This utility model provides a support frame for heat shrinking U-shaped insulated steel bars, comprising:

[0006] A frame component is provided with a through groove, and a plurality of positioning components for holding and fixing U-shaped steel bars are provided in the through groove. The positioning components are connected to the frame component; the positioning components can abut against the end of the insulating sleeve.

[0007] The bottom of the frame component is provided with a first support beam and a second support beam for connection with the conveyor chain of the heating machine, and the first support beam and the second support beam are spaced apart.

[0008] Preferably, the through groove is a U-shaped through groove, the U-shaped through groove includes a bottom surface and two side walls, a grid partition is provided in the through groove, the grid partition is spaced apart from the bottom surface, the grid partition is detachably connected to the frame members located on the two side walls respectively, the bottom surface is provided with a plurality of positioning components, and the grid partition is provided with a plurality of positioning components.

[0009] Preferably, the positioning component includes a plurality of first positioning elements and a plurality of second positioning elements, wherein the first positioning elements are connected to the frame element located on the bottom surface, the second positioning elements are connected to the grid partition, and the first positioning elements and the second positioning elements are offset from each other.

[0010] Preferably, the frame members located on the two side walls are respectively provided with connectors, and the grid partition is engaged with the connectors.

[0011] Preferably, the connector includes a first groove and a second groove, the first groove and the second groove are spaced apart, the first groove and the second groove are respectively connected to the frame member, the grid partition is engaged with the first groove and the grid partition is engaged with the second groove.

[0012] Preferably, the positioning component includes a first clamping member, a second clamping member, and a third clamping member. The first clamping member, the second clamping member, and the third clamping member are respectively connected to the frame member. The first clamping member is clamped to a first bending segment, the second clamping member is clamped to a second bending segment, and the third clamping member is clamped to a connecting segment. The first clamping member can abut against the end of the insulating sleeve located on the first bending segment, the second clamping member can abut against the end of the insulating sleeve located on the second bending segment, and the third clamping member can abut against the end of the insulating sleeve located on the connecting segment.

[0013] Preferably, the first, second, and third clamping members each include a first latch and a second latch. The first latch and the second latch are respectively connected to the frame member. The first latch and the second latch are spaced apart and have a distance A. The size of the distance A is adapted to the length of the insulating sleeve. The first latch and the second latch respectively clamp and connect to the U-shaped steel bar. The first latch can abut against the end of the insulating sleeve, and the second latch can abut against the end of the insulating sleeve.

[0014] Preferably, both the first support beam and the second support beam include cylindrical steel bars, and the outer wall of the steel bars is provided with a plurality of protruding ridges.

[0015] Preferably, the reinforcing bars are welded to the frame members.

[0016] Preferably, the first support beam is parallel to the second support beam.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model provides a support frame for heat shrinking U-shaped insulated steel bars. The frame has several holes, which allow the heat generated by the heat shrinking mechanism to be transferred to the insulating sleeve in a timely manner when the frame passes through the heat shrinking mechanism, thus enabling the insulating sleeve to shrink quickly. The U-shaped steel bar is fixed by a positioning component in the through groove, and the U-shaped steel bar is displaced due to vibration of the transmission chain. The positioning component abuts against the end of the insulating sleeve to limit the relative displacement between the insulating sleeve and the U-shaped steel bar before heat shrinking, so that the insulating sleeve is located in the accurate position of the U-shaped steel bar after heat shrinking, ensuring that the produced U-shaped insulated steel bars meet the quality requirements and improving the quality of railway construction. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the U-shaped insulating steel bar in the background art of this utility model;

[0020] Figure 2 This is a structural schematic diagram of a support frame for heat shrinking U-shaped insulated steel bars according to the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of a support frame for heat shrinking U-shaped insulated steel bars according to Embodiment 1 of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of a connector for a heat-shrinkable support frame for U-shaped insulated steel bars, according to Embodiment 1 of this utility model.

[0023] Figure 5This is a schematic diagram of the structure of a grid partition for a support frame for heat shrinking U-shaped insulated steel bars, according to Embodiment 1 of this utility model.

[0024] Figure 6 This is a schematic diagram of the positioning assembly of a support for heat-shrinkable U-shaped insulated steel bars according to Embodiment 1 of this utility model.

[0025] Figure 7 This is a schematic diagram of the structure of the first support beam of a support frame for heat shrinking U-shaped insulating steel bars, which is an embodiment of the present invention.

[0026] Marked in the image:

[0027] 1-Frame component, 2-Through groove, 21-Side wall, 22-Bottom surface, 3-Positioning assembly, 31-First positioning component, 32-Second positioning component, 33-First holding component, 34-Second holding component, 35-Third holding component, 36-First bayonet, 37-Second bayonet, 4-First support beam, 5-Second support beam, 6-Grid partition, 7-Connector, 71-First groove component, 72-Second groove component, 8-Protruding ridge, 101-First bending section, 102-Second bending section, 103-Connecting section. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0029] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0031] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0032] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0033] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0034] Example 1

[0035] like Figures 2-7As shown, a support frame for heat shrinking U-shaped insulated steel bars is specifically a frame component 1. The frame component 1 is a heat-resistant steel structural component. The frame component 1 has a through groove 2, which forms a space for placing the U-shaped steel bar. The through groove 2 is provided with several positioning components 3 for holding and fixing the U-shaped steel bar. The positioning components 3 hold and fix the U-shaped steel bar to prevent relative displacement between the U-shaped steel bar and the frame component 1. The positioning components 3 are connected to the frame component 1. The positioning components 3 can abut against the end of the insulating sleeve. The positioning components 3 limit the insulating sleeve, thereby preventing the insulating sleeve from shifting from the preset position after heat shrinking. The bottom of the frame component 1 is provided with a first support beam 4 and a second support beam 5 for connecting to the conveyor chain of the heating machine. The first support beam 4 and the second support beam 5 are spaced apart. The first support beam 4 and the second support beam 5 support the frame component 1, allowing the frame component 1 to be transported on the conveyor chain.

[0036] The frame component 1 has several holes, which allow the heat generated by the heat-shrinking mechanism to be transferred to the insulating sleeve in a timely manner when the frame component 1 passes through the heat-shrinking mechanism, thus enabling the insulating sleeve to shrink quickly. The U-shaped steel bar is fixed by the positioning component 3 in the through groove 2, and the U-shaped steel bar is displaced due to the vibration of the transmission chain. The positioning component 3 abuts against the end of the insulating sleeve to limit the relative displacement between the insulating sleeve and the U-shaped steel bar before heat shrinking, so that the insulating sleeve is located in the accurate position of the U-shaped steel bar after heat shrinking, ensuring that the produced U-shaped insulating steel bar meets the quality requirements and improving the quality of railway construction.

[0037] In one or more embodiments, the through channel 2 is a U-shaped through channel 2, which includes a bottom surface 22 and two side walls 21. A grid partition 6 is provided inside the through channel 2, and the grid partition 6 is spaced apart from the bottom surface 22. The grid partition 6 is detachably connected to the frame members 1 located on the two side walls 21. The bottom surface 22 is provided with a plurality of positioning components 3, and the grid partition 6 is provided with a plurality of positioning components 3. By setting the grid partition 6, U-shaped steel bars can be fixed on both the grid partition 6 and the bottom surface 22 of the U-shaped through channel 2, thereby increasing the number of steel bars that can be heat-shrinked at one time, improving efficiency, and reducing energy consumption. The grid partition 6 is a heat-resistant steel structural component.

[0038] In an optional embodiment, the positioning component 3 includes a plurality of first positioning elements 31 and a plurality of second positioning elements 32. The first positioning elements 31 are connected to the frame element 1 located on the bottom surface 22, and the second positioning elements 32 are connected to the grid partition 6. The first positioning elements 31 and the second positioning elements 32 are staggered. U-shaped steel bars can be connected to the first positioning elements 31 and the second positioning elements 32 respectively. By staggering the first positioning elements 31 and the second positioning elements 32, the insulating sleeves on the upper U-shaped steel bars and the insulating sleeves on the lower steel bars are heated evenly when the frame element 1 passes through the heat shrinking mechanism. It should be noted that the heat shrinking mechanism has a channel, and heating elements are respectively provided in the upper and lower parts of the channel. When the frame element 1 passes through the channel, the heating elements heat the insulating sleeves, so that the insulating sleeves are heat-shrinkably fixed on the U-shaped steel bars.

[0039] In an optional embodiment, the frame members 1 located on the two side walls 21 are respectively provided with connectors 7. The grid partition 6 is engaged with the connectors 7. The connectors 7 include a first groove 71 and a second groove 72, which are spaced apart. The first groove 71 and the second groove 72 are respectively connected to the frame members 1. The grid partition 6 is engaged with the first groove 71 and the second groove 72. The first groove 71 and the second groove 72 are provided on one side wall 21, and on the other side wall 21... Similarly, a first groove 71 and a second groove 72 are provided. The openings of the first groove 71 and the second groove 72 both face upward. The edge of the grid partition 6 can be simultaneously locked in the first groove 71 and the second groove 72 located on different side walls 21, thereby creating a gap between the grid partition 6 and the bottom surface 22. Specifically, the grid partition 6 is held in the first and second slots under the action of gravity and can be lifted upward by external force, thereby facilitating the installation and disassembly of the grid partition 6 and making it easier for workers to fix U-shaped steel bars on the frame member 1.

[0040] In one or more embodiments, the positioning component 3 includes a first clamping member 33, a second clamping member 34, and a third clamping member 35. The first clamping member 33, the second clamping member 34, and the third clamping member 35 are respectively connected to the frame member 1. The first clamping member 33 is clamped and connected to the first bending section, the second clamping member 34 is clamped and connected to the second bending section, and the third clamping member 35 is clamped and connected to the connecting section. The first clamping member 33 can abut against the end of the insulating sleeve located on the first bending section, the second clamping member 34 can abut against the end of the insulating sleeve located on the second bending section, and the third clamping member 35 can abut against the end of the insulating sleeve located on the connecting section. The U-shaped steel bar is clamped and fixed by the first clamping member 33, the second clamping member 34, and the third clamping member 35 to prevent the U-shaped steel bar from shifting.

[0041] In an optional embodiment, the first clamping member 33, the second clamping member 34, and the third clamping member 35 each include a first clamping slot 36 and a second clamping slot 37. The first clamping slot 36 and the second clamping slot 37 are respectively connected to the frame member 1. The first clamping slot 36 and the second clamping slot 37 are spaced apart and have a distance A between them. The size of the distance A is adapted to the length of the insulating sleeve. The first clamping slot 36 and the second clamping slot 37 respectively clamp and connect the U-shaped steel bar. The first clamping slot 36 can abut against the end of the insulating sleeve, and the second clamping slot 37 can abut against the end of the insulating sleeve. Under the premise that the position of the U-shaped steel bar is fixed, the side of the first clamping slot 36 and the side of the second clamping slot 37 can abut against the end of the insulating sleeve respectively, thereby limiting the relative displacement of the U-shaped steel bar and the insulating sleeve. Specifically, in actual production, the distance A between the first clamping slot 36 and the second clamping slot 37 is slightly larger than the length of the insulating sleeve to facilitate the installation of the U-shaped steel bar by the operator.

[0042] In one or more embodiments, the first support beam 4 and the second support beam 5 have the same structure. Both the first support beam 4 and the second support beam 5 are cylindrical steel bars, and the outer wall of the steel bars is provided with a plurality of protruding ridges 8. The protruding ridges 8 enable the steel bars to be limited by the links of the transmission chain, thereby enabling the frame member 1 to be transmitted stably.

[0043] In an optional implementation, the reinforcing bars are welded to the frame member 1 to ensure structural strength.

[0044] In one or more embodiments, the first support beam 4 is parallel to the second support beam 5 to prevent the frame member 1 from shifting during transmission.

[0045] In this embodiment, a support frame for heat shrinking U-shaped insulated steel bars is used. First, the U-shaped steel bars are fixed on the positioning component 3 on the bottom surface 22. After the lower layer is filled, the grid partition 6 is installed, and the U-shaped steel bars are fixed on the grid partition 6. When fixing the U-shaped steel bars, the insulating sleeve is positioned between the first bayonet 36 and the second bayonet 37. Then, the frame component 1 is placed on the transmission chain of the heat shrinking equipment, and the transmission chain transports the frame component 1 through the heat shrinking mechanism, which heats the insulating sleeve and fixes the insulating sleeve on the U-shaped steel bar to form a U-shaped insulated steel bar.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A support bracket for U-shaped insulated reinforcing bar heat shrinking, characterised in that, include: A frame component (1) is provided with a through groove (2), and a plurality of positioning components (3) for holding and fixing U-shaped steel bars are provided in the through groove (2). The positioning components (3) are connected to the frame component (1). The positioning components (3) can abut against the end of the insulating sleeve. The frame member (1) has a first support beam (4) and a second support beam (5) at its bottom for connecting with the conveyor chain of the heating machine. The first support beam (4) and the second support beam (5) are spaced apart.

2. A support bracket for U-shaped insulated reinforcing bar heat shrinking according to claim 1, characterised in that, The through groove (2) is a U-shaped through groove (2), which includes a bottom surface (22) and two side walls (21). A grid partition (6) is provided in the through groove (2), and the grid partition (6) is spaced apart from the bottom surface (22). The grid partition (6) is detachably connected to the frame member (1) located on the two side walls (21). The bottom surface (22) is provided with a plurality of positioning components (3), and the grid partition (6) is provided with a plurality of positioning components (3).

3. A support bracket for U-shaped insulated reinforcing bar thermal contraction as claimed in claim 2, wherein, The positioning component (3) includes a plurality of first positioning elements (31) and a plurality of second positioning elements (32). The first positioning elements (31) are connected to the frame element (1) located on the bottom surface (22), and the second positioning elements (32) are connected to the grid partition (6). The first positioning elements (31) and the second positioning elements (32) are offset from each other.

4. The support bracket for U-shaped insulated reinforcing bar heat shrinking according to claim 2, wherein, The frame members (1) located on the two side walls (21) are respectively provided with connectors (7), and the grid partition (6) is engaged with the connectors (7).

5. A support bracket for U-shaped insulated reinforcing bar thermal contraction as claimed in claim 4 wherein, The connector (7) includes a first groove (71) and a second groove (72), the first groove (71) and the second groove (72) are spaced apart, the first groove (71) and the second groove (72) are respectively connected to the frame member (1), the grid partition (6) is snapped to the first groove (71), and the grid partition (6) is snapped to the second groove (72).

6. A support bracket for U-shaped insulated reinforcing bar thermal contraction as claimed in claim 1, wherein, The positioning component (3) includes a first retaining member (33), a second retaining member (34), and a third retaining member (35). The first retaining member (33), the second retaining member (34), and the third retaining member (35) are respectively connected to the frame member (1). The first retaining member (33) is retained and connected to the first bending section, the second retaining member (34) is retained and connected to the second bending section, and the third retaining member (35) is retained and connected to the connecting section. The first retaining member (33) can abut against the end of the insulating sleeve located on the first bending section, the second retaining member (34) can abut against the end of the insulating sleeve located on the second bending section, and the third retaining member (35) can abut against the end of the insulating sleeve located on the connecting section.

7. A support bracket for U-shaped insulated reinforcing bar thermal contraction as claimed in claim 6 wherein, The first clamping member (33), the second clamping member (34), and the third clamping member (35) each include a first clamping slot (36) and a second clamping slot (37). The first clamping slot (36) and the second clamping slot (37) are respectively connected to the frame member (1). The first clamping slot (36) and the second clamping slot (37) are spaced apart. The first clamping slot (36) and the second clamping slot (37) have a distance A. The size of the distance A is adapted to the length of the insulating sleeve. The first clamping slot (36) and the second clamping slot (37) respectively clamp and connect the U-shaped steel bar. The first clamping slot (36) can abut against the end of the insulating sleeve, and the second clamping slot (37) can abut against the end of the insulating sleeve.

8. The support bracket for U-shaped insulated reinforcing bar heat shrinking according to claim 1, wherein, Both the first support beam (4) and the second support beam (5) include cylindrical steel bars, and the outer wall of the steel bars is provided with a plurality of protruding ridges (8).

9. A support bracket for U-shaped insulated reinforcing bar thermal contraction as claimed in claim 8, wherein, The reinforcing bars are welded to the frame member (1).

10. A support bracket for U-shaped insulated reinforcing bar heat shrinking according to any one of claims 1 to 9, characterised in that, The first support beam (4) is parallel to the second support beam (5).

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