Steel bar connecting device for reinforced concrete
Through the cooperation of the design of the steel bar sleeve and the movable fixing mechanism, the problem of the steel bar connection device requiring great force is solved, and the easy connection and stability are achieved, which is suitable for the rapid connection of reinforced concrete components.
Patent Information
- Application Number
- CN202422431874.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The existing steel bar connection device requires a large amount of effort when connecting, which consumes manpower and material resources. Especially for staff with less strength, they need to use external forces to complete the connection. The traditional connection method is insufficient in complex load environments and has low construction efficiency.
A connecting device including a steel bar sleeve and a movable and fixed mechanism is designed. Through the cooperation of the ball and the spring, the steel bars can be easily connected, avoid sleeve misalignment and improve stability.
It realizes that no large effort is required when connecting steel bars, simplifies operation, improves the stability and convenience of the device, and is suitable for various construction environments.
Smart Images
Figure CN223135497U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reinforced concrete component assembled building components, in particular to a reinforced concrete steel bar connecting device. Background Art
[0002] With the development trend of building industrialization, the application of prefabricated concrete components is becoming more and more extensive. A device that can quickly and efficiently connect steel bars is needed to meet the requirements of on-site assembly of prefabricated components.
[0003] There are two traditional connection methods: binding connection and welding connection
[0004] Binding connection: This is a more traditional connection method, which is to cross and stack two steel bars and then bind them together with thin wire. During operation, it is necessary to determine the binding spacing and number of turns and other parameters according to certain specifications. Problems with binding connection: Limited connection strength: Binding connection mainly relies on the restraining effect of wire to transmit force, and its connection strength is relatively low. When subjected to large tension or pressure, it is easy to loosen or steel bar slip. For example, in some large bridge structures or high-rise buildings, due to the complex structure and large load, binding connection is difficult to meet the structural requirements for steel bar connection strength.
[0005] Low construction efficiency: The binding process needs to be done manually one by one, especially in areas with dense steel bars. The operating space is limited, which will greatly reduce the construction speed; and the workers' proficiency is required to be high. Improper operation will affect the connection quality.
[0006] Welding connection; including arc welding, flash butt welding, electroslag pressure welding and other welding methods; arc welding uses the high temperature generated by the arc to melt the joints of the steel bars and connect them together; flash butt welding is to butt two steel bars together, pass the current to melt the contact points instantly and connect them by upsetting; electroslag pressure welding is mainly used for connecting vertical steel bars, using the resistance heat generated by the current passing through the slag pool to melt the ends of the steel bars for connection;
[0007] Problems with welding connections: quality is greatly affected by the environment: welding quality is sensitive to environmental conditions. For example, welding defects such as pores, slag inclusions, and cracks are prone to occur in humid, windy, or low-temperature environments. These defects will weaken the strength and toughness of the steel bar connection and reduce the reliability of the structure.
[0008] Requires professional equipment and personnel: Different welding methods require corresponding welding equipment, such as electric welders, butt welders, etc., and require operators to have professional welding skills and qualifications; this increases construction costs and construction difficulty, and may be difficult to meet the requirements at some small construction sites.
[0009] In the prior art, the patent publication number is CN216664744U, which discloses a steel bar connecting device for reinforced concrete, including an outer sleeve, a first inner sleeve and a second inner sleeve respectively connected to the ends of two steel bars to be connected. One end of the outer sleeve is set as an equal-diameter reduced opening with a diameter larger than that of the steel bar to be connected. The other end of the outer sleeve is provided with an internal threaded hole for threaded connection with the second inner sleeve. The outer surface of the second inner sleeve forms an external threaded surface that matches the internal threaded hole. Both the internal threaded hole and the external threaded surface have a taper. The first inner sleeve is located between the equal-diameter reduced opening and the second inner sleeve. A backstop assembly for preventing the outer sleeve from falling off is also provided between the outer sleeve and the second inner sleeve. The utility model can realize the connection of two steel bars at both ends under the condition that the alignment of the two steel bars to be connected is not ideal, and at the same time add a backstop assembly to avoid loosening and slipping between the outer sleeve and the inner sleeve, ensuring the stable connection of the two steel bars at both ends.
[0010] The above prior art solution has the following defects: When the steel bar connecting device is in use, a relatively large amount of force is required to rotate the steel bar inside the device for connection, which is extremely labor-intensive and material-consuming. For example, when a staff member with less strength uses the device, external force must be used to connect the steel bars. Utility Model Content
[0011] To solve the problems raised in the above background art, the purpose of the present utility model is to provide a steel bar connecting device for reinforced concrete, which has the advantage of easy connection, and solves the problem that when the steel bar connecting device is in use, a relatively large amount of force is required to rotate the steel bar inside the device for connection, which is extremely labor-intensive and material-consuming. For example, when a staff member with less strength uses the device, external force must be used to connect the steel bars.
[0012] To achieve the above purpose, the present utility model provides the following technical solution: A steel bar connecting device for reinforced concrete, including a steel bar strip, on the surface of which a first steel bar sleeve is threadedly connected. The outer side of the first steel bar sleeve is movably connected with a second steel bar sleeve. The outer side of the first steel bar sleeve is movably connected with a moving mechanism, and the surface of the second steel bar sleeve is fixedly connected with a fixing mechanism.
[0013] Preferably, the moving mechanism includes a circular groove, which is opened on the surface of the first steel bar sleeve and inside the second steel bar sleeve. A spherical ball is arranged inside the circular groove. The number of spherical balls is several, and several spherical balls are evenly distributed. The spherical balls are movably connected inside the second steel bar sleeve. The outer side of the second steel bar sleeve is movably connected with a fixing sleeve, and the inner wall of the fixing sleeve is movably connected to the surface of the second steel bar sleeve. A first spring is sleeved on the surface of the second steel bar sleeve.
[0014] Preferably, the fixing mechanism includes a snap block, the bottom of the snap block is fixedly connected to the top of the second steel bar sleeve, snap balls are arranged on the front side and the rear side of the snap block, a second spring is fixedly connected to the outside of the snap ball, a fixing block is fixedly connected to the outside of the second spring, and the left side of the fixing block is fixedly connected to the right side of the top of the fixing sleeve.
[0015] Preferably, a triangular block is fixedly connected to the outside of the fixing block, and the left side of the triangular block is fixedly connected to the right side of the top of the fixing sleeve.
[0016] Preferably, an anti-slip sleeve is fixedly connected to the outside of the fixing sleeve, and the anti-slip sleeve is located outside the second steel bar sleeve.
[0017] Preferably, a movable cover is fixedly connected to the bottom of the second steel bar sleeve, and the movable cover is located outside the fixing sleeve.
[0018] Preferably, a pull ring is fixedly connected to the outside of the movable cover, and the pull ring is located outside the first steel bar sleeve.
[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0020] 1. In the present utility model, two steel bars are respectively inserted into the inlets of the first steel bar sleeve and the second steel bar sleeve, and are simultaneously pushed towards the side close to the ends of the steel bars. At this time, the first steel bar sleeve and the second steel bar sleeve move towards each other. When the steel bars are fixedly connected in the device, the spherical ball inside the second steel bar sleeve is stuck in the circular groove of the first steel bar sleeve. The first spring on the surface of the second steel bar sleeve drives the left fixing sleeve to move to the left, and the fixing sleeve fixes the spherical ball. At the same time, the outer fixing sleeve drives the right fixing block to move to the right, and the fixing block drives the internal second spring and the snap ball to move towards the second steel bar sleeve. The snap ball is stuck in the snap block to perform secondary fixation on the connecting device, and the steel bars are connected. When the steel bar connecting device is connecting, it is not necessary to use great force to rotate and connect the steel bars inside the device, which does not consume manpower and material resources. The device is simple, light and effortless. When a staff member with less strength uses the device, the steel bars can be connected without the need to rely on external force.
[0021] 2. By setting the movable mechanism, the present utility model can stably reinforce the first steel bar sleeve and the second steel bar sleeve, avoiding the movement and misalignment of the first steel bar sleeve and the second steel bar sleeve caused by the excessive gravity at both ends when the steel bars are connected, and improving the use stability of the first steel bar sleeve and the second steel bar sleeve. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic structural diagram of the present utility model;
[0023] Figure 2 This is a three-dimensional sectional view of the steel bar sleeve of the present utility model;
[0024] Figure 3 This is a three-dimensional view of the fixing sleeve of the present utility model;
[0025] Figure 4 This is a three-dimensional view of the snap ball of the present utility model.
[0026] In the figure: 1, steel bar; 2, the first steel bar sleeve; 3, the second steel bar sleeve; 4, movable mechanism; 41, circular groove; 42, spherical ball; 43, fixing sleeve; 44, the first spring; 5, fixing mechanism; 51, snap block; 52, snap ball; 53, the second spring; 54, fixing block; 6, triangular block; 7, anti-slip sleeve; 8, movable cover; 9, pull ring. Specific implementation manners
[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0028] As Figures 1 to 4 shown, a steel bar connecting device for reinforced concrete provided by the present utility model includes a steel bar 1, the surface of the steel bar 1 is threadedly connected with a first steel bar sleeve 2, the outside of the first steel bar sleeve 2 is movably connected with a second steel bar sleeve 3, the outside of the first steel bar sleeve 2 is movably connected with a movable mechanism 4, and the surface of the second steel bar sleeve 3 is fixedly connected with a fixing mechanism 5.
[0029] Referring to Figure 2 , the movable mechanism 4 includes a circular groove 41, the circular groove 41 is opened on the surface of the first steel bar sleeve 2 and inside the second steel bar sleeve 3, a spherical ball 42 is arranged inside the circular groove 41, the number of the spherical balls 42 is several, and several spherical balls 42 are equidistantly distributed, the spherical ball 42 is movably connected inside the second steel bar sleeve 3, the outside of the second steel bar sleeve 3 is movably connected with a fixing sleeve 43, the inner wall of the fixing sleeve 43 is movably connected to the surface of the second steel bar sleeve 3, and a first spring 44 is sleeved on the surface of the second steel bar sleeve 3.
[0030] As a technical optimization scheme of the present utility model, by setting the movable mechanism 4, the first steel bar sleeve 2 and the second steel bar sleeve 3 can be stably reinforced, avoiding the movement and misalignment of the first steel bar sleeve 2 and the second steel bar sleeve 3 caused by the excessive gravity at both ends of the steel bar during connection, and improving the use stability of the first steel bar sleeve 2 and the second steel bar sleeve 3.
[0031] Referring to Figure 4, the fixing mechanism 5 includes a buckle block 51. The bottom of the buckle block 51 is fixedly connected to the top of the second steel bar sleeve 3. Buckle balls 52 are arranged on both the front side and the rear side of the buckle block 51. A second spring 53 is fixedly connected to the outside of the buckle ball 52. A fixing block 54 is fixedly connected to the outside of the second spring 53. The left side of the fixing block 54 is fixedly connected to the right side of the top of the fixing sleeve 43.
[0032] As a technical optimization scheme of the present utility model, by providing the fixing mechanism 5, the fixing sleeve 43 and the second steel bar sleeve 3 can be stably reinforced, avoiding the generation of gaps between the second steel bar sleeve 3 and the fixing sleeve 43 due to the long-term movement of the second steel bar sleeve 3 and the fixing sleeve 43, and improving the stability of the second steel bar sleeve 3 and the fixing sleeve 43.
[0033] Reference Figure 4 , a triangular block 6 is fixedly connected to the outside of the fixing block 54. The left side of the triangular block 6 is fixedly connected to the right side of the top of the fixing sleeve 43.
[0034] As a technical optimization scheme of the present utility model, by providing the triangular block 6, the fixing block 54 can be fixed, avoiding the generation of gaps between the fixing block 54 and the fixing sleeve 43 due to the long-term fixation of objects by the fixing block 54 and the excessive weakness of the outside, and improving the durability of the fixing block 54.
[0035] Reference Figure 1 , an anti-slip sleeve 7 is fixedly connected to the outside of the fixing sleeve 43. The anti-slip sleeve 7 is located outside the second steel bar sleeve 3.
[0036] As a technical optimization scheme of the present utility model, by providing the anti-slip sleeve 7, the hands of workers can be protected against slipping, avoiding the insufficient friction between the hands and the device during the connection of steel bars, resulting in no force application point on the hands and difficulty in connecting the steel bars, and improving the convenience of use.
[0037] Reference Figure 1 , a movable cover 8 is fixedly connected to the bottom of the second steel bar sleeve 3. The movable cover 8 is located outside the fixing sleeve 43.
[0038] As a technical optimization scheme of the present utility model, by providing the movable cover 8, the round openings on both sides of the device can be sealed, avoiding excessive dust entering the interior of the device when it is not in use, resulting in the need to clean the interior dust before use, and improving the convenience of the device.
[0039] Reference Figure 1 , a pull ring 9 is fixedly connected to the outside of the movable cover 8. The pull ring 9 is located outside the first steel bar sleeve 2.
[0040] As a technical optimization solution of the present utility model, by providing a pull ring 9, the movable cover 8 can be lifted and disassembled, avoiding inconvenient operation when the movable cover 8 needs to be disassembled, resulting in the device being unable to be used in time, and improving the convenience of the movable cover 8.
[0041] The working principle and usage process of the present utility model: When in use, when the length of the steel bar 1 is not sufficient and the steel bar 1 needs to be connected, the two steel bars 1 are respectively inserted into the inlets of the first steel bar sleeve 2 and the second steel bar sleeve 3, and at the same time, they are pushed towards the side close to the two ends of the steel bar 1. At this time, the first steel bar sleeve 2 and the second steel bar sleeve 3 move towards each other. When the steel bar 1 is fixedly connected in the device, the spherical ball 42 inside the second steel bar sleeve 3 is stuck in the circular groove 41 of the first steel bar sleeve 2. The first spring 44 on the surface of the second steel bar sleeve 3 drives the left fixing sleeve 43 to move to the left, and the fixing sleeve 43 fixes the spherical ball 42. At the same time, the outer fixing sleeve 43 drives the right fixing block 54 to move to the right, and the fixing block 54 drives the internal second spring 53 and the snap ball 52 to move towards the second steel bar sleeve 3. The snap ball 52 is stuck in the snap block 51 to perform secondary fixation on the connecting device, and the connection of the steel bar 1 is completed.
[0042] In summary: For the steel bar connecting device of the reinforced concrete, through the combined use of the steel bar 1, the first steel bar sleeve 2, the second steel bar sleeve 3, the moving mechanism 4 and the fixing mechanism 5, it solves the problem that when the steel bar connecting device is connecting, a large amount of force is required to rotate and connect the steel bar inside the device, which is extremely laborious and material-consuming. When a staff member with less strength uses the device, external force must be relied on to connect the steel bar.
[0043] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.
[0044] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A steel bar connection device for reinforced concrete, comprising a steel bar strip (1), characterized in that: The surface of the steel bar (1) is threadedly connected with a first steel bar sleeve (2). The outer side of the first steel bar sleeve (2) is movably connected with a second steel bar sleeve (3). The outer side of the first steel bar sleeve (2) is movably connected with a moving mechanism (4). The surface of the second steel bar sleeve (3) is fixedly connected with a fixing mechanism (5).
2. The steel bar connecting device for reinforced concrete according to claim 1, characterized in that: The moving mechanism (4) includes a circular groove (41). The circular groove (41) is opened on the surface of the first steel bar sleeve (2) and inside the second steel bar sleeve (3). A spherical ball (42) is arranged inside the circular groove (41). The number of the spherical balls (42) is several, and several spherical balls (42) are equidistantly distributed. The spherical ball (42) is movably connected inside the second steel bar sleeve (3). The outer side of the second steel bar sleeve (3) is movably connected with a fixing sleeve (43). The inner wall of the fixing sleeve (43) is movably connected to the surface of the second steel bar sleeve (3). A first spring (44) is sleeved on the surface of the second steel bar sleeve (3).
3. A steel bar connecting device for reinforced concrete according to claim 1, characterized in that: The fixing mechanism (5) includes a snap block (51). The bottom of the snap block (51) is fixedly connected to the top of the second steel bar sleeve (3). Snap balls (52) are arranged on the front side and the rear side of the snap block (51). A second spring (53) is fixedly connected to the outer side of the snap ball (52). A fixing block (54) is fixedly connected to the outer side of the second spring (53). The left side of the fixing block (54) is fixedly connected to the right side of the top of the fixing sleeve (43).
4. The steel bar connecting device for reinforced concrete according to claim 3, characterized in that: A triangular block (6) is fixedly connected to the outer side of the fixing block (54). The left side of the triangular block (6) is fixedly connected to the right side of the top of the fixing sleeve (43).
5. The steel bar connecting device for reinforced concrete according to claim 2, characterized in that: An anti-slip sleeve (7) is fixedly connected to the outer side of the fixing sleeve (43). The anti-slip sleeve (7) is located on the outer side of the second steel bar sleeve (3).
6. A reinforcing bar connecting device for reinforced concrete according to claim 1, characterized in that: A movable cover (8) is fixedly connected to the bottom of the second steel bar sleeve (3). The movable cover (8) is located on the outer side of the fixing sleeve (43).
7. A steel bar connecting device for reinforced concrete according to claim 6, characterized in that: A pull ring (9) is fixedly connected to the outer side of the movable cover (8). The pull ring (9) is located on the outer side of the first steel bar sleeve (2).