Protective device for reinforcing steel bar straightening

Abstract

The utility model relates to the field of building material construction equipment, in particular to a protection device for reinforcing steel bar straightening. Comprising a bottom frame, supporting rods and side rods, the supporting rods are sequentially installed on the two sides of the bottom frame at intervals, the side rods are detachably connected with the supporting rods, a limiting frame is arranged at the input end of the bottom frame in the horizontal direction, and the limiting frame comprises limiting rods which are arranged in a staggered mode and intersect with one another; limiting openings used for enabling reinforcing steel bars to advance along a preset track are formed between the adjacent limiting rods, the bottom frame, the supporting rods, the side rods and the limiting frames are detachably connected through connecting pieces, and the most common steel pipe fasteners and other building materials on a construction site are adopted for building a foundation frame of the protection device. The risk of reinforcing steel bar straightening on pedestrians and workers is reduced; all the parts are bound or clamped and fixed through the connecting pieces to achieve detachable connection, the parts can be repeatedly used after being detached, the overall cost is low, intervention of professionals is not needed, and implementation is easy.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment for building materials, and in particular to a protective device for straightening steel bars. Background Technology

[0002] Currently, rebar straightening machines are used in rebar processing at construction sites. These machines use a high-speed rotor to adjust the angle of the straightening die, achieving the straightening effect. However, during rebar processing, the rebar may vibrate freely within a certain range, especially at the ends where they may swing uncontrollably, posing a significant safety hazard to pedestrians and rebar processing workers.

[0003] To address this safety hazard, some technical solutions exist. For example, a steel pipe of a certain length is installed at the front of the guide cylinder. The reinforcing bars to be straightened first pass through this pipe, and then into the guide cylinder and straightening cylinder, to prevent the ends of the reinforcing bars from popping out and injuring people when each coil of reinforcing bars is nearly straightened. However, this is inconvenient in practical applications. If the pipe diameter is too small, the reinforcing bars are difficult to pass through, and they wear down significantly; if the pipe diameter is too large, the cost increases, and fixing the pipe also requires considerable work.

[0004] Another commonly used method in related technologies is to weld a trumpet-shaped protective cage using steel bars, steel pipes, and round hoops. This method provides good protection, but it requires professional welders. In addition, the cage is for single use, which leads to material waste. Furthermore, it is rarely used in practice due to its inconvenience in manufacturing.

[0005] Both of the above safety protection methods are difficult to implement due to their high production costs and large labor costs, especially the need for professional welders, which leads to long completion times for the protective facilities. As a result, construction teams are reluctant to implement them, and the safety hazards of the on-site rebar straightening machine are difficult to effectively solve.

[0006] The aforementioned technologies suffer from drawbacks such as material waste and inconvenience in processing and use. Utility Model Content

[0007] The purpose of this utility model is to provide a protective device for straightening reinforcing bars, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a protective device for straightening reinforcing bars, comprising a base frame and side supports installed sequentially at intervals on both sides of the base frame. A limit frame is provided at the input end of the base frame in the horizontal direction. The limit frame includes limit rods that are staggered and intersect each other. A limit opening is formed between adjacent limit rods to allow the reinforcing bars to advance along a preset trajectory. The base frame, side supports, and limit frame are all detachably connected by connectors.

[0009] By adopting the above technical solution, side supports are installed at intervals on both sides of the base frame to build the basic framework of the protective device. The base frame, side supports and limiting frame are all constructed from steel pipes on the construction site. They are detachably connected by interlocking or clamping fasteners. The fasteners are one or more of the following: scaffolding clamps, steel pipe couplers or steel wires. During erection, the components are clamped and fixed by scaffolding clamps or steel pipe couplers or interlocking and fixed by steel wires. During dismantling, tools are used to loosen the scaffolding clamps or steel pipe couplers and cut the steel wires to achieve dismantling. After dismantling, the raw materials can be reused or recycled, which is cost-effective, economical and environmentally friendly.

[0010] Preferably, the number of limiting frames is even, and the limiting openings between two limiting frames are arranged opposite each other to form a limiting space. The two limiting frames can move closer to each other or further away from each other to adjust the size of the limiting space.

[0011] By adopting the above technical solution, the number of limiting rods is set to four, installed symmetrically in pairs along the vertical direction, forming two sets of limiting ports facing each other to form a limiting space. Changing the position of the limiting ports between the two sets of limiting frames makes them move closer or further apart, thus changing the cross-sectional size of the limiting space. When the limiting ports of the two sets of limiting frames are close, the cross-sectional shape of the limiting space is rhomboid and the cross-sectional size is correspondingly reduced. When the limiting ports of the two sets of limiting frames are far apart, the cross-sectional shape of the limiting space is hexagonal and the cross-sectional size is correspondingly increased. By adjusting the position of the limiting rods, the staff can control the two sets of limiting frames to move closer or further apart, thereby changing the range of cross-sectional size of the limiting space and controlling the range of free swing of the end of the rebar.

[0012] Preferably, the side support includes a support rod and a side rod detachably connected to the support rod, and the support rod is detachably connected to the base frame.

[0013] By adopting the above technical solution, the side rods are connected to the middle section of the support rods and connected to multiple support rods on the same side, which effectively improves the stability of the frame.

[0014] Preferably, a first reinforcing rod is sequentially provided between the first and last ends of the base frame, and the first reinforcing rod is detachably fixed to the bottom of the support rod.

[0015] By adopting the above technical solution, the first reinforcing rod is connected between the first and second ends of the base frame by interlocking or clamping the first reinforcing rod with connectors. At the same time, the first reinforcing rod is detachably fixed to the bottom of the support rod. Multiple components are repeatedly connected and fixed in parallel to further improve the stability of the frame.

[0016] Preferably, a connecting frame is detachably provided at the top of the support rod, and a second reinforcing rod is sequentially provided between the first and last ends of the connecting frame, and the second reinforcing rod is detachably fixed to the top of the support rod.

[0017] By adopting the above technical solution, a detachable connecting frame is set at the top of the support rod, and the second reinforcing rod is then connected between the first and last ends of the connecting frame by connecting parts through interlocking or clamping. At the same time, the second reinforcing rod is detachably fixed to the top of the support rod, and multiple components are repeatedly connected and fixed in parallel to further improve the stability of the frame.

[0018] Preferably, the outer surface of the side support and the connecting frame is provided with a protective net.

[0019] By adopting the above technical solution, a protective net is installed on the outer facade of the side support and connecting frame, which effectively reduces the gap between the members of the protective device, reduces the range of free swing of the steel bar ends, prevents the steel bar ends from escaping from the gap between the members, and improves the safety of the device.

[0020] Preferably, the protective net is composed of a flexible rope-like device, and the four ends of the protective net are detachably connected to the four ends of the base frame.

[0021] By adopting the above technical solution, the four ends of the protective net are tied and fixed to the four ends of the base frame with steel wire or nylon rope to achieve detachable connection. The rope device is set as steel wire or nylon rope, and the protective net is composed of pre-woven steel wire mesh or nylon rope mesh. It is environmentally friendly, easy to process, and inexpensive, using locally sourced materials.

[0022] Preferably, the outer surfaces of the side support and the connecting frame are provided with protective covers.

[0023] By adopting the above technical solution, protective covers are installed on the exterior of the side supports and connecting frames to separate the exterior of the protective device from the outside world. This effectively prevents dust, iron filings, and small fragments generated by the shaking of the steel bar ends on the ground during steel bar processing from passing through the protective net and affecting the personal safety of workers. At the same time, the protective covers buffer the free swinging of the steel bar ends, preventing them from passing through the gaps in the protective net and improving the safety of the device.

[0024] Preferably, the protective cover is made of a transparent soft material, and the four ends of the protective cover are detachably connected to the four ends of the base frame.

[0025] By adopting the above technical solution, the four ends of the protective cover are tied and fixed to the four ends of the base frame with steel wire or nylon rope to achieve a detachable connection. The transparent soft material is set as a transparent plastic rainproof cloth or PVC soft shell board. The staff can observe the processing of the steel bar by the steel bar straightening machine through the transparent protective cover to avoid major accidents and improve the safety of the device.

[0026] Preferably, a curtain is installed at the front end of the connecting frame. The curtain is composed of multiple flexible strips, and a limiting channel is formed between adjacent strips to limit the displacement of the reinforcing bars.

[0027] By adopting the above technical solution, the strip-shaped component is fixed to the second reinforcing rod with steel wire or nylon rope to form a vertical curtain. When the steel bar swings, it hits the curtain, and the curtain undergoes flexible deformation to disperse the impact force. The strip component is made of strip-shaped rubber belts cut from waste tires, scrapped conveyor belts and excavator track rubber blocks, etc., and dustproof netting and tarpaulin used for dustproof covering on construction sites are folded into strips and sewn together with steel wire or steel nails and nylon ropes. When dustproof netting or tarpaulin is used as the curtain, a counterweight can be wrapped around the bottom of the dustproof netting or tarpaulin and sewn together during the sewing process. The counterweight is made of stone or brick.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. An effective safety protection device for the rebar straightening machine is constructed using the most common steel pipe fasteners and other building materials found on construction sites, reducing the safety risks to pedestrians and rebar processing operators during rebar straightening. It features safety, effectiveness, rapid construction, simple assembly and disassembly, and readily available materials. After disassembly, it can be reused or returned to the lessee. The overall cost is low, and it is simple to implement without the need for professional personnel. Construction teams are happy to accept and implement it as required, which is of great significance to the safe production of engineering construction.

[0030] 2. Adding a protective net to the protective device further improves the safety of the device and prevents the straightened steel bar ends from bursting out from the gaps in the protective device and threatening the safety of workers. The protective net also uses the most common wire mesh or nylon rope net on construction sites; it also has the characteristics of fast construction, simple erection and dismantling, readily available materials, and recyclability after dismantling.

[0031] 3. Continue to install protective covers on the protective device to separate the exterior of the protective device from the outside world. This effectively prevents dust, iron filings, and small fragments caused by the shaking of the steel bar ends on the ground during steel bar processing from passing through the protective net and affecting the personal safety of workers. The protective covers are made of plastic rainproof cloth or PVC soft shell panels, which are commonly used on construction sites. They also have the characteristics of quick construction, simple assembly and disassembly, and readily available materials. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0033] Figure 2 This is a schematic diagram of the second embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the fourth embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the curtain structure according to the fourth embodiment of this utility model.

[0036] The markings in the diagram are: 1. Base frame; 11. First reinforcing rod; 2. Side bracket; 21. Support rod; 22. Side rod; 3. Limiting frame; 31. Limiting rod; 32. Limiting space; 4. Reinforcing bar; 5. Connector; 6. Connecting frame; 61. Second reinforcing rod; 7. Protective net; 8. Curtain. Detailed Implementation

[0037] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0038] Please see Figure 1 This application discloses a protective device for straightening reinforcing bars, including a base frame 1 and side supports 2 installed at intervals on both sides of the base frame 1. A limit frame 3 is provided at the input end of the base frame 1 in the horizontal direction. The limit frame 3 includes limit rods 31 that are staggered and intersect each other. A limit opening is formed between adjacent limit rods 31 to allow the reinforcing bars 4 to advance along a preset trajectory. The base frame 1, side supports 2 and limit frame 3 are all detachably connected by connectors 5.

[0039] Example 1

[0040] Continue reading Figure 1 In this embodiment, side supports 2 are installed sequentially at intervals on both sides of the base frame 1 to build the basic frame of the protective device. The base frame 1, side supports 2 and limiting frame 3 are all constructed using steel pipes from the construction site. They are detachably connected by interlocking or clamping fasteners 5. The fasteners 5 are one or more of the following: scaffolding clamps, steel pipe fasteners, or steel wires. During erection, the components are clamped and fixed by scaffolding clamps or steel pipe fasteners or interlocked by steel wires. During disassembly, tools are used to loosen the scaffolding clamps or steel pipe fasteners and cut the steel wires to achieve disassembly. After disassembly, the raw materials can be reused or recycled, which is cost-effective and environmentally friendly.

[0041] See Figure 1In this embodiment, the number of limiting frames 3 is even, and the limiting openings between two limiting frames 3 are arranged opposite each other to form a limiting space 32. The two limiting frames 3 can move closer or further apart to adjust the size of the limiting space 32. The number of limiting rods 31 is set to four in pairs, symmetrically installed in the vertical direction, forming two sets of limiting frames 3 with the limiting openings facing each other to form the limiting space 32. Changing the position of the limiting openings between the two sets of limiting frames 3 so that they move closer or further apart changes the cross-sectional size of the limiting space 32 accordingly. When the limiting openings of the two sets of limiting frames 3 are close, the cross-sectional shape of the limiting space 32 is rhomboid and the cross-sectional size is correspondingly reduced. When the limiting openings of the two sets of limiting frames 3 are far apart, the cross-sectional shape of the limiting space 32 is hexagonal and the cross-sectional size is correspondingly increased. The operator controls the two sets of limiting frames 3 to move closer or further apart by adjusting the position of the limiting rods 31, thereby changing the range of the cross-sectional size of the limiting space 32 and controlling the range of free swing of the end of the reinforcing bar 4.

[0042] See Figure 1 In this embodiment, the side support 2 includes a support rod 21 and a side rod 22 that is detachably connected to the support rod 21. The side rod 22 is connected to the middle section of the support rod 21 and connected to multiple support rods 21 on the same side to effectively improve the stability of the frame. The support rod 21 is detachably connected to the base frame 1, and multiple components are repeatedly connected in parallel to fix them, thereby further improving the stability of the frame.

[0043] See Figure 1 In this embodiment, a first reinforcing rod 11 is sequentially arranged between the first and last ends of the base frame 1. The first reinforcing rod 11 is detachably fixed to the bottom of the support rod 21. The first reinforcing rod 11 is connected between the first and last ends of the base frame 1 by a connector 5 through interlocking binding or clamping. At the same time, the first reinforcing rod 11 is detachably fixed to the bottom of the support rod 21. Multiple components are repeatedly connected and fixed in parallel to further improve the stability of the frame.

[0044] See Figure 1 In this embodiment, a connecting frame 6 is detachably provided on the top of the support rod 21. A second reinforcing rod 61 is sequentially provided between the first and last ends of the connecting frame 6. The second reinforcing rod 61 is detachably fixed to the top of the support rod 21. The connecting frame 6 is detachably connected to the top of the support rod 21, and the second reinforcing rod 61 is connected to the first and last ends of the connecting frame 6 by means of connecting parts 5. At the same time, the second reinforcing rod 61 is detachably fixed to the top of the support rod 21. Multiple components are repeatedly connected and fixed in parallel to further improve the stability of the frame.

[0045] The implementation principle of Embodiment 1 of this application is as follows: the basic frame of the protective device is built using the most common steel pipe fasteners and other building materials on the construction site, which reduces the risk to pedestrians and workers caused by straightening the steel bar 4; the components are connected by binding or clamping each other through connectors 5 to achieve detachable connection, which can be reused after disassembly and the overall cost is low. The limiting ports between the two limiting frames 3 are set opposite to each other to form a limiting space 32. Changing the position of the limiting ports between the two sets of limiting frames 3 so that they are closer to each other or farther away from each other changes the size of the limiting space 32 accordingly, thereby controlling the range of free swing of the end of the steel bar 4.

[0046] Example 2

[0047] Please see Figure 2 The difference between this embodiment and the first embodiment is that the side support 2 and the connecting frame 6 are provided with protective netting 7 on their outer surfaces.

[0048] Please see Figure 2 In this embodiment, a protective net 7 is provided on the outer facade of the side support 2 and the connecting frame 6, which effectively reduces the gap between the members of the protective device, reduces the range of free swing of the end of the steel bar 4, prevents the end of the steel bar 4 from popping out from the gap between the members, and improves the safety of the device.

[0049] See Figure 2 In this embodiment, the protective net 7 is composed of a flexible rope-like device. The four ends of the protective net 7 are detachably connected to the four ends of the base frame 1. The four ends of the protective net 7 are tied and fixed to the four ends of the base frame 1 by steel wire or nylon rope to achieve detachable connection. The rope-like device is set as steel wire or nylon rope. The protective net 7 is composed of pre-woven steel wire mesh or nylon rope mesh, which is environmentally friendly, easy to process, and inexpensive.

[0050] The implementation principle of Example 2 is as follows: a protective net 7 is added to the protective device to further improve the safety of the device and prevent the ends of the straightened steel bars 4 from escaping from the gaps in the protective device and threatening the safety of the workers. The four ends of the protective net 7 are tied and fixed to the four ends of the base frame 1 with steel wire or nylon rope to achieve detachable connection. The protective net 7 uses the most common wire mesh or nylon rope mesh on the construction site, which is locally sourced, environmentally friendly, easy to process, and inexpensive.

[0051] Example 3

[0052] Please refer to 2. The difference between this embodiment and embodiment one is that the outer surfaces of the side bracket 2 and the connecting frame 6 are provided with protective covers.

[0053] In this embodiment, a protective cover is installed on the outer facade of the side support 2 and the connecting frame 6 to separate the outer facade of the protective device from the outside world. This effectively prevents dust, iron filings, and small fragments generated by the shaking of the end of the steel bar 4 on the ground during the processing of the steel bar 4 from passing through the protective net 7 and affecting the personal safety of the workers. At the same time, the protective cover buffers the free swing of the end of the steel bar 4 to prevent the end of the steel bar 4 from passing through the gaps in the protective net 7, thereby improving the safety of the device.

[0054] In this embodiment, the protective cover is made of transparent soft material. The four ends of the protective cover are detachably connected to the four ends of the base frame 1. The four ends of the protective cover are tied and fixed to the four ends of the base frame 1 with steel wire or nylon rope to achieve detachable connection. The transparent soft material is made of transparent plastic rainproof cloth or PVC soft shell board. The staff can observe the processing of the steel bar 4 by the steel bar straightening machine through the transparent protective cover to avoid major accidents and improve the safety of the device.

[0055] The implementation principle of Example 3 is as follows: a protective cover is set on the outer facade of the side support 2 and the connecting frame 6 to separate the outer facade of the protective device from the outside world and improve the safety of the device. The four ends of the protective cover are tied and fixed to the four ends of the base frame 1 by steel wire or nylon rope to achieve detachable connection. The transparent soft material is set as a transparent plastic rainproof cloth or PVC soft shell board. The staff can observe the processing of the steel bar 4 by the steel bar straightening machine through the transparent protective cover to avoid major accidents.

[0056] Example 4

[0057] Please see Figure 3 and Figure 4 The difference between this embodiment and the first embodiment is that a curtain 8 is installed at the front end of the connecting frame 6.

[0058] See Figure 3 and Figure 4 In this embodiment, the strip-shaped pieces are fixed to the second reinforcing rod 61 with steel wire or nylon rope to form a vertical curtain 8. The curtain 8 is composed of multiple flexible strip-shaped pieces, and a limiting channel is formed between adjacent strip-shaped pieces to limit the displacement of the reinforcing bar 4. When the reinforcing bar 4 swings, it hits the curtain 8, and the curtain 8 generates flexible deformation to disperse the impact force. The strip-shaped pieces are made of strip-shaped rubber strips cut from waste tires, scrapped conveyor belts and excavator track rubber blocks, etc., and dustproof nets and tarpaulins used for dustproof covering of construction sites are folded into strips and sewn with steel wire or steel nails to pull nylon ropes. When dustproof nets or tarpaulins are used as curtain 8, counterweights can be wrapped around the bottom of the dustproof nets or tarpaulins and sewn together during the sewing process. The counterweights are made of stones or bricks.

[0059] The implementation principle of Example 4 is as follows: the strip-shaped piece is fixed to the second reinforcing rod 61 with steel wire or nylon rope to form a vertical curtain 8. The curtain 8 is composed of multiple flexible strip-shaped pieces. A limiting channel is formed between adjacent strip-shaped pieces to limit the displacement of the end of the reinforcing bar 4. When the end of the reinforcing bar 4 swings, it hits the curtain 8. The curtain 8 generates flexible deformation to disperse the impact force and improve the safety of the device.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A protective device for straightening reinforcing bars, characterized in that: The base frame (1) includes side supports (2) installed at intervals on both sides of the base frame (1). A limit frame (3) is provided at the input end of the base frame (1) in the horizontal direction. The limit frame (3) includes limit rods (31) that are staggered and intersect each other. A limit opening is formed between adjacent limit rods (31) to allow the reinforcing bar (4) to move along a preset trajectory. The base frame (1), side supports (2) and limit frame (3) are all detachably connected by connectors (5).

2. The protective device for straightening reinforcing bars according to claim 1, characterized in that: The number of limiting frames (3) is even, and the limiting openings between two limiting frames (3) are arranged opposite each other to form a limiting space (32). The two limiting frames (3) can move closer to each other or further away from each other to adjust the size of the limiting space (32).

3. The protective device for straightening reinforcing bars according to claim 1, characterized in that: The side support (2) includes a support rod (21) and a side rod (22) detachably connected to the support rod (21). The support rod (21) is detachably connected to the base frame (1).

4. A protective device for straightening reinforcing bars according to claim 3, characterized in that: The base frame (1) is provided with a first reinforcing rod (11) between its first and last ends, and the first reinforcing rod (11) is detachably fixed to the bottom of the support rod (21).

5. A protective device for straightening reinforcing bars according to claim 3, characterized in that: The top of the support rod (21) is detachably provided with a connecting frame (6), and a second reinforcing rod (61) is sequentially provided between the first and last ends of the connecting frame (6). The second reinforcing rod (61) is detachably fixed to the top of the support rod (21).

6. A protective device for straightening reinforcing bars according to claim 5, characterized in that: The side support (2) and the connecting frame (6) are provided with protective nets (7) on their outer facades.

7. A protective device for straightening reinforcing bars according to claim 6, characterized in that: The protective net (7) is composed of a flexible rope-like device, and the four ends of the protective net (7) are detachably connected to the four ends of the base frame (1).

8. A protective device for straightening reinforcing bars according to claim 5, characterized in that: The outer surfaces of the side support (2) and the connecting frame (6) are provided with protective covers.

9. A protective device for straightening reinforcing bars according to claim 8, characterized in that: The protective cover is made of transparent soft material, and the four ends of the protective cover are detachably connected to the four ends of the base frame (1).

10. A protective device for straightening reinforcing bars according to claim 5, characterized in that: The front end of the connecting frame (6) is equipped with a curtain (8), which is composed of multiple flexible strips, and a limiting channel is formed between adjacent strips to limit the displacement of the reinforcing bar (4).

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