Auxiliary tool for bending stirrups
By designing the bent stirrup auxiliary tools for nested rotors and bent rods inside and outside, the problems of more rework and low craftsmanship when bending stirrups on site are solved, efficient and stable bending and safe fixing of stirrups are achieved, and construction efficiency and safety are improved.
Patent Information
- Application Number
- CN202421696904.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-17
AI Technical Summary
When the prefabricated steel cage cannot be constructed on site, the steel cage cannot be transported to the site, or the transportation costs are high, resulting in bending stirrups on site, and when the stirrups are bent in narrow spaces, it is difficult to reduce rework and improve labor efficiency.
An inner rotary body and an outer rotary body including inner and outer nesting are designed. The inner and outer rotary bodies are respectively equipped with an inner retardation rod and an outer retardation rod, and are combined with an arc-shaped connection part, a ratchet-like locking groove and a rotatable arc-shaped sleeve plate to achieve stable bending and fixing of stirrups.
Through the coordination of inner and outer nested rotors and bent rods, efficient bending of stirrups is achieved, which increases the versatility and stability of the tool, reduces safety risks caused by loosening or falling off, and improves construction efficiency and safety.
Smart Images
Figure CN222944403U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel bar bending tools, and in particular to an auxiliary tool for bending stirrups. Background Art
[0002] When the construction conditions are not met at the prefabricated steel cage site, the prefabricated finished steel cage cannot be transported to the construction site or the transportation cost is very high and the stirrups can only be bent and tied on site, or the stirrups on the finished steel cage are incorrectly tied in size (already transported to the site) and need to be supplemented or modified, or the stirrups are bent in a small space, in order to reduce unnecessary rework and increase work efficiency, stirrups are made or remedied on site to meet safety requirements. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides an auxiliary tool for bending stirrups.
[0004] The technical solution of the utility model is achieved in this way:
[0005] A stirrup bending auxiliary tool comprises an inner swivel body and an outer swivel body which are nested inside and outside, an inner support rod for supporting the bent stirrups being installed at one end of the inner swivel body, an outer support rod for bending the stirrups being installed at one end of the outer swivel body, and the outer support rod and the inner support rod are located on the same side of the inner swivel body and the outer swivel body, one end of the inner swivel body is connected to a connecting portion for connecting to the main reinforcement of a steel cage, and the connecting portion is used to stabilize the inner swivel body and the outer swivel body.
[0006] Furthermore, the connecting portion and the inner support rod are distributed on both sides of the inner rotating body.
[0007] Furthermore, a first rotating rod is fixedly mounted on the surface of the outer rotating body, and the first rotating rod is used to drive the outer rotating body to rotate and provide a force arm.
[0008] Furthermore, a second rotating rod is fixedly mounted on one side of the inner rotating body located at the connecting portion, and the connecting portion is mounted on the second rotating rod.
[0009] Furthermore, a limit plate is fixedly mounted on the inner swivel, the limit plate is located on the outer side of the inner push rod, and a channel for the bent stirrup to pass through is provided between the limit plate and the inner push rod.
[0010] Furthermore, the connecting portion includes an arc-shaped top plate, and the front side surface of the arc-shaped top plate forms an arc-shaped area for accommodating the main reinforcement of the steel cage.
[0011] Furthermore, the connecting part also includes an arc-shaped sleeve plate, one end of which is rotatably connected to one end of the arc-shaped top plate, and the arc-shaped sleeve plate is configured to be able to make a 360° circular motion at one end of the arc-shaped top plate, and the arc-shaped sleeve plate is used to cooperate with the arc-shaped top plate to clamp the main bars of the steel cage from both sides.
[0012] Furthermore, a ratchet-shaped locking groove is provided on the outer side surface of the arc-shaped sleeve plate away from the end thereof which is rotatably connected to the arc-shaped top plate, and a locking block which can be displaced inwards and outwards is provided at one end of the arc-shaped top plate. The locking block prevents the arc-shaped sleeve plate from loosening the main reinforcement of the steel cage by being inserted into the locking groove, and a locking spring is provided on the arc-shaped top plate for providing a force for the locking block to be inserted into the locking groove.
[0013] Furthermore, a swing tooth is provided on the outer rotating body, one end of the swing tooth is rotatably mounted on the outer rotating body, a force storage torsion spring is provided between the swing tooth and the outer rotating body, a top block is fixedly mounted on the locking block, and when the swing tooth passes through the top plate along the bending direction of the stirrup, the swing tooth rotates and compresses the force storage torsion spring to pass over the top block, and when the swing tooth passes over the top block in the opposite direction to the bending direction of the stirrup, the locking block disengages from the locking groove.
[0014] The utility model has the following beneficial effects:
[0015] 1. By means of the inner and outer nested internal and external swivels, in conjunction with the inner and outer support rods, stirrups can be conveniently bent to improve construction efficiency.
[0016] 2. The connection part adopts an arc-shaped top plate with a rotatable arc-shaped sleeve design, which can adapt to the main bars of the steel cage with different diameters, increasing the versatility and practicality of the tool. The ratchet-shaped locking groove and the locking block design that can be displaced inward and outward increase the stability and reliability of the locking, and reduce the safety risks caused by loosening or falling off.
[0017] 3. The cooperation between the locking block and the locking groove, as well as the interaction between the swing tooth and the top block, ensure that the tool can be stably locked on the main reinforcement of the steel cage after bending is completed, preventing the tool from accidentally falling off during subsequent construction, and further improving the safety of construction. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is an overall schematic diagram of the utility model;
[0019] Figure 2 It is a schematic diagram of the arc-shaped top plate and the arc-shaped sleeve plate of the utility model;
[0020] Figure 3 It is an enlarged view of point A of the utility model;
[0021] Figure 4 It is a schematic diagram of the locking spring and the top block of the utility model.
[0022] In the figure: 1. inner rotating body 1; 2. outer rotating body; 3. inner push rod; 4. outer push rod; 5. connecting part; 5.1. arc-shaped top plate; 5.2. arc-shaped sleeve plate; 6. first rotating rod; 7. second rotating rod; 8. limit plate; 9. locking groove; 10. locking block; 11. locking spring; 12. swing tooth; 13. force storage torsion spring; 14. top block. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0024] like Figures 1 to 4 As shown, a bending stirrup auxiliary tool includes an inner swivel 1 and an outer swivel 2 which are nested inside and outside, an inner support rod 3 for supporting the bent stirrup is installed at one end of the inner swivel 1, an outer support rod 4 for bending the stirrup is installed at one end of the outer swivel 2, and the outer support rod 4 and the inner support rod 3 are located on the same side of the inner swivel 1 and the outer swivel 2, and one end of the inner swivel 1 is connected with a connecting portion 5 for connecting to the main reinforcement of the steel cage, and the connecting portion 5 is used to stabilize the inner swivel 1 and the outer swivel 2. As one example of the inner swivel 1 and the outer swivel 2, a ball bearing can be used. In this case, the inner ring of the roller bearing is the inner swivel 1, and the outer ring of the ball bearing is the outer swivel 2, which will not be described in detail here.
[0025] The inner support rod 3 supports the stirrups during the bending process to ensure that the steel bars can be bent according to a predetermined path and angle. The outer support rod 4 realizes the bending operation of the stirrups by rotating with the outer swivel 2. The inner support rod 3 and the outer support rod 4 are located on the same side of the inner swivel 1 and the outer swivel 2 to ensure the consistency and continuity of the bending operation.
[0026] Two support rods are fixedly connected to the inner swivel 1, and connecting plates are fixedly connected to the two support rods. The connecting part 5 is connected to the inner swivel 1 through the connecting plate. The connecting part 5 is connected to the main reinforcement of the steel cage, so that the tool can be stably fixed on the main reinforcement of the steel cage, thereby improving the stability and safety of the operation. During the bending process, the connecting part 5 is connected to the main reinforcement to provide stable support for the inner swivel 1 and the outer swivel 2, thereby ensuring the smooth progress of the bending operation.
[0027] The connecting portion 5 and the inner push rod 3 are distributed on both sides of the inner rotating body 1. By distributing the connecting portion 5 and the inner push rod 3 on both sides of the inner rotating body 1, the connecting portion 5 and the inner push rod 3 will not interfere with each other, ensuring the independence of their respective functions, and also making the inner rotating body 1 more balanced and improving the stability of operation.
[0028] A first rotating rod 6 is fixedly mounted on the surface of the outer rotating body 2, and the first rotating rod 6 is used to drive the outer rotating body 2 to rotate and provide a force arm. By rotating the first rotating rod 6 to drive the outer rotating body 2 to rotate, the rotation of the outer rotating body 2 is more labor-saving and convenient, thereby realizing the bending operation of the stirrups, improving work efficiency and convenience of operation.
[0029] The inner rotating body 1 is fixedly mounted with a second rotating rod 7 on one side of the connecting portion 5, and the connecting portion 5 is mounted on the second rotating rod 7. The second rotating rod 7 is fixedly connected to the support rod. When the outer rotating body 2 rotates, the inner rotating body 1 will not rotate by applying force to the second rotating rod 7, ensuring that the connecting portion 5 can be stably fixed on the inner rotating body 1.
[0030] A limit plate 8 is fixedly installed on the inner swivel 1, and the limit plate 8 is located on the outside of the inner push rod 3, and a channel for the bent stirrup to pass through is provided between the limit plate 8 and the inner push rod 3. By providing the limit plate 8 on the inner swivel 1, the bent stirrup is positioned and limited, and a reasonable channel can be formed between the limit plate 8 and the inner push rod 3 for the bent stirrup to pass through. Through the joint action of the inner push rod 3 and the limit plate 8, the stirrup is more stably fixed and positioned to prevent the bent steel bar from falling out.
[0031] The connecting portion 5 includes an arc-shaped top plate 5.1, and the front side of the arc-shaped top plate 5.1 forms an arc-shaped area for accommodating the main reinforcement of the steel cage. By providing the arc-shaped top plate 5.1, the contact surface with the main reinforcement of the steel cage is increased, and the arc-shaped area formed by the front side of the arc-shaped top plate 5.1 can closely fit the shape of the main reinforcement of the steel cage, thereby ensuring that the auxiliary tool can be firmly fixed on the main reinforcement of the steel cage, and improving the connection stability between the tool and the main reinforcement of the steel cage.
[0032] The connecting part 5 also includes an arc-shaped sleeve 5.2, one end of which is rotatably connected to one end of the arc-shaped top plate 5.1, and the arc-shaped sleeve 5.2 is configured to be able to make a 360° circular motion at one end of the arc-shaped top plate 5.1, and the arc-shaped sleeve 5.2 is used to cooperate with the arc-shaped top plate 5.1 to hold the main reinforcement of the steel cage from both sides. The arc-shaped sleeve 5.2 cooperates with the arc-shaped top plate 5.1 to hold the main reinforcement of the steel cage from both sides, further enhancing the connection stability between the tool and the main reinforcement of the steel cage, and the design of 360° circular motion enables the arc-shaped sleeve 5.2 to adapt to the main reinforcement of the steel cage at different positions and angles, thereby improving the applicability and flexibility of the tool.
[0033] A ratchet-shaped locking groove 9 is provided on the outer side of the arc sleeve 5.2 away from the end of the arc top plate 5.1 that is rotatably connected thereto. A locking block 10 that can be displaced inward and outward is provided at one end of the arc top plate 5.1. The locking block 10 prevents the arc sleeve 5.2 from loosening the main reinforcement of the steel cage by inserting into the locking groove 9. A locking spring 11 that provides a force for the locking block 10 to be inserted into the locking groove 9 is provided on the arc top plate 5.1. By designing the locking groove 9 to be ratchet-shaped, the friction between the locking block 10 and the locking block 10 can be increased, and the locking stability can be improved. The position of the locking groove 9 is selected at the end away from the rotation connection, which is conducive to effective locking after the arc sleeve 5.2 hugs the main reinforcement of the steel cage. The locking block 10 can be displaced inward and outward, so that it can cooperate with the locking groove 9 on the arc sleeve 5.2 to achieve the locking function. The force of the locking spring 11 enables the locking block 10 to automatically insert into the locking groove 9 when not subjected to external force, thereby achieving automatic locking.
[0034] A swing tooth 12 is provided on the outer rotating body 2, one end of the swing tooth 12 is rotatably installed on the outer rotating body 2, a force storage torsion spring 13 is provided between the swing tooth 12 and the outer rotating body 2, a top block 14 is fixedly installed on the locking block 10, and when the swing tooth 12 passes through the top plate along the bending direction of the stirrup, the swing tooth 12 rotates and compresses the force storage torsion spring 13 to pass over the top block 14, and when the swing tooth 12 passes over the top block 14 in the opposite direction to the bending direction of the stirrup, the locking block 10 disengages from the locking groove 9. By setting the swing tooth 12 to be rotatably installed on the outer rotating body 2, it can rotate accordingly according to the rotation direction of the outer rotating body 2. When the swing tooth 12 passes through the top plate along the bending direction of the stirrups, it will pass over the top block 14 by rotating and compressing the force storage torsion spring 13. When the swing tooth 12 passes through the top block 14 in the opposite direction, due to the release effect of the force storage torsion spring 13, the swing tooth 12 will push the locking block 10 out of the locking groove 9 to achieve unlocking, thereby achieving the loosening of the arc sleeve plate 5.2. This design enables the auxiliary tool to easily loosen the main reinforcement of the steel cage after the stirrups are bent, thereby improving the convenience and efficiency of operation.
[0035] Place the arc-shaped top plate 5.1 of the connecting part 5 on the main reinforcement of the steel cage, ensuring that the arc-shaped area fits tightly with the main reinforcement, rotate the arc-shaped sleeve plate 5.2 from one side of the arc-shaped top plate 5.1 to the other side, so that it and the arc-shaped top plate 5.1 can hold the main reinforcement of the steel cage together, and the locking block 10 on the arc-shaped top plate 5.1 is inserted into the locking groove 9 on the outer side of the arc-shaped sleeve plate 5.2 under the action of the locking spring 11, ensuring that the arc-shaped sleeve plate 5.2 will not loosen the main reinforcement. Place the stirrup to be bent in the channel between the limit plate 8 and the inner push rod 3, ensuring that one end of the stirrup is in contact with the outer push rod 4, apply force to the first rotating rod 6, and at the same time apply force to the second rotating rod 7, so that the outer rotating body 2 rotates relative to the inner rotating body 1, and the inner rotating body 1 does not rotate, thereby pushing the outer push rod 4 to move in the direction of the inner push rod 3. As the outer rotating body 2 rotates, the outer push rod 4 gradually bends the stirrup inward until a predetermined bending angle is reached, and the swing teeth 12 rotate with the outer rotating body 2. 2 rotates, and when the swing tooth 12 passes the top plate along the bending direction of the stirrup, the force storage torsion spring 13 is compressed to pass over the top block 14. When the stirrup is bent, the first rotating rod 6 is rotated in the opposite direction to make the swing tooth 12 rotate in the opposite direction to the bending direction of the stirrup to release the force storage torsion spring 13 to push the top block 14, compress the locking spring 11, and make the locking block 10 disengage from the locking groove 9, allowing the arc sleeve 5.2 to loosen the main reinforcement of the steel cage, remove the auxiliary tools, and prepare for the next stirrup bending operation.
[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A stirrup bending auxiliary tool, characterized in that: The invention comprises an inner rotating body (1) and an outer rotating body (2) which are arranged in an inner and outer nested manner, wherein one end of the inner rotating body (1) is provided with an inner support rod (3) for supporting the bent stirrups, and one end of the outer rotating body (2) is provided with an outer support rod (4) for bending the stirrups, and the outer support rod (4) and the inner support rod (3) are located on the same side of the inner rotating body (1) and the outer rotating body (2), and one end of the inner rotating body (1) is connected with a connecting portion (5) for connecting to the main reinforcement of the steel cage, and the connecting portion (5) is used to stabilize the inner rotating body (1) and the outer rotating body (2).
2. A stirrup bending auxiliary tool as claimed in claim 1, characterized in that: The connecting portion (5) and the inner support rod (3) are distributed on both sides of the inner rotating body (1).
3. A stirrup bending auxiliary tool as claimed in claim 1, characterized in that: A first rotating rod (6) is fixedly mounted on the surface of the outer rotating body (2), and the first rotating rod (6) is used to drive the outer rotating body (2) to rotate and provide a force arm.
4. A stirrup bending auxiliary tool as claimed in claim 1, characterized in that: A second rotating rod (7) is fixedly mounted on one side of the inner rotating body (1) located at the connecting portion (5), and the connecting portion (5) is mounted on the second rotating rod (7).
5. The stirrup bending auxiliary tool according to claim 1, characterized in that: A limit plate (8) is fixedly mounted on the inner rotating body (1), the limit plate (8) is located outside the inner push rod (3), and a channel for the bent stirrup to pass through is provided between the limit plate (8) and the inner push rod (3).
6. A stirrup bending auxiliary tool as claimed in any one of claims 1 to 5, characterized in that: The connecting portion (5) comprises an arc-shaped top plate (5.1), and the front side surface of the arc-shaped top plate (5.1) forms an arc-shaped area for accommodating the main reinforcement of the reinforcement cage.
7. A stirrup bending auxiliary tool as claimed in claim 6, characterized in that: The connecting portion (5) further comprises an arc-shaped sleeve plate (5.2), one end of which is rotatably connected to one end of the arc-shaped top plate (5.1), and the arc-shaped sleeve plate (5.2) is configured to be able to perform 360° circular motion at one end of the arc-shaped top plate (5.1), and the arc-shaped sleeve plate (5.2) is used to cooperate with the arc-shaped top plate (5.1) to hold the main reinforcement of the steel cage from both sides.
8. A stirrup bending auxiliary tool as claimed in claim 7, characterized in that: A ratchet-shaped locking groove (9) is provided on the outer side surface of the arc-shaped sleeve plate (5.2) away from the end thereof that is rotatably connected to the arc-shaped top plate (5.1); a locking block (10) capable of being displaced inward and outward is provided at one end of the arc-shaped top plate (5.1); the locking block (10) prevents the arc-shaped sleeve plate (5.2) from loosening the main reinforcement of the steel cage by being inserted into the locking groove (9); and a locking spring (11) for providing a force for the locking block (10) to be inserted into the locking groove (9) is provided on the arc-shaped top plate (5.1).
9. A stirrup bending auxiliary tool as claimed in claim 8, characterized in that: The outer rotating body (2) is provided with a swing tooth (12), one end of which is rotatably mounted on the outer rotating body (2), a force storage torsion spring (13) is arranged between the swing tooth (12) and the outer rotating body (2), a top block (14) is fixedly mounted on the locking block (10), and when the swing tooth (12) passes through the top plate along the bending direction of the stirrup, the swing tooth (12) passes over the top block (14) by rotating and compressing the force storage torsion spring (13), and when the swing tooth (12) passes over the top block (14) in a direction opposite to the bending direction of the stirrup, the locking block (10) is disengaged from the locking groove (9).