Joint device for quickly connecting reinforcing steel bars

Abstract

The utility model discloses a quick connecting steel bar joint device which comprises a first connecting sleeve and a second connecting sleeve which are coaxially arranged, the first connecting sleeve is in threaded connection with a first steel bar, the second connecting sleeve is connected with a second steel bar, the inner diameter of the second connecting sleeve is larger than the diameter of the second steel bar, and a plurality of expansion joints are arranged on the side wall of the second connecting sleeve. The outer side of the second connecting sleeve is sleeved with a contraction piece which is used for contracting the second connecting sleeve, so that the inner wall of the second connecting sleeve is tightly attached to the outer wall of the second steel bar. Due to the fact that the second connecting sleeve with the variable inner diameter is arranged, the inner diameter of the second connecting sleeve is large during alignment, alignment precision is reduced, the alignment process of the steel bar connectors is simplified, construction time is shortened, and therefore the exposure time of slotted holes can be shortened, the hole collapse risk can be reduced, and the labor intensity and the safety risk of operators can be reduced. During connection, the second connecting sleeve is contracted through the tightening piece, the stability and strength of the steel bar connector are guaranteed, and the engineering quality requirement is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of reinforcing joint connection, more particularly to a quick connecting reinforcing joint device. BACKGROUND

[0002] In the construction of underground engineering enclosure structure, facing the deeply embedded enclosure structure, the size of the reinforcing cage used is relatively long, and the construction difficulty is significantly increased. Especially in some space-limited environments, the traditional whole processing and hoisting method is no longer applicable. Therefore, the reinforcing cage needs to be divided into multiple paragraphs or segments, and the installation is completed through multiple hoisting. Although this segmented construction method solves the problem of space limitation,

[0003] When connecting two reinforcing cages, the reinforcing joint is generally connected through a connecting sleeve. The connecting sleeve is designed with threads of opposite rotation at both ends inside. Correspondingly, the reinforcing joint also needs to be equipped with corresponding threads to match the connecting sleeve. In actual operation, the construction personnel need to accurately align the connecting sleeve with the two reinforcing bars to be connected, and then realize the fastening connection of the reinforcing bars by rotating the sleeve. However, this process requires high construction precision and is time-consuming and laborious. In addition, the long-term exposure of the slot hole may cause the risk of hole collapse, and the long-term operation of the workers in the hoisting area also faces a large safety hazard.

[0004] The above deficiencies need to be improved. SUMMARY

[0005] In order to solve or alleviate the problem that the existing reinforcing cage splicing process is complex and the construction risk is large, the utility model provides a quick connecting reinforcing joint device.

[0006] The technical scheme of the utility model is as follows:

[0007] A quick connecting reinforcing joint device, comprising a coaxially arranged first connecting sleeve and a second connecting sleeve, the first end of the first connecting sleeve is connected with the second end of the second connecting sleeve, the first connecting sleeve is threadedly connected with a first reinforcing bar, the second connecting sleeve is connected with a second reinforcing bar, the inner diameter of the second connecting sleeve is larger than the diameter of the second reinforcing bar, the side wall of the second connecting sleeve is provided with a plurality of expansion joints, the outer side of the second connecting sleeve is provided with a contraction member, and the contraction member is used to contract the second connecting sleeve so that the inner wall of the second connecting sleeve tightly abuts against the outer wall of the second reinforcing bar.

[0008] The quick connecting reinforcing joint device, the inner wall of the first connecting sleeve is provided with an internal thread, and the first end of the first reinforcing bar is provided with an external thread matched with the internal thread.

[0009] The length of the first connecting sleeve is not less than 2 times the diameter of the first reinforcing bar.

[0010] The inner wall of the second connecting sleeve is provided with a first anti-skid texture, and the outer wall of the second end of the second reinforcing steel bar is provided with a second anti-skid texture.

[0011] Further, the first anti-skid texture and the second anti-skid texture are threads of the same specification.

[0012] The length of the second connecting sleeve is not less than 3 times the diameter of the second reinforcing steel bar.

[0013] The first connecting sleeve and the second connecting sleeve are of an integrated structure.

[0014] The contraction member is detachably connected with the second connecting sleeve.

[0015] Further, the contraction member comprises a connecting ring sleeved outside the second connecting sleeve, the connecting ring is provided with a notch, and the connecting ring is provided with connecting plates at both ends, the connecting plates are provided with connecting holes, and the connecting holes are provided with fasteners penetrating through, the fasteners are rotated to adjust the distance between the two connecting plates, and the second connecting sleeve is tightened or loosened.

[0016] The contraction member is fixedly connected with the second connecting sleeve.

[0017] The utility model discloses the beneficial effect lies in, the utility model discloses through setting up the second connecting sleeve of the changeable inner diameter, when the alignment, the inner diameter of second connecting sleeve is larger, reduces the alignment precision, simplifies the reinforcing steel joint alignment process, shortens the construction time, thereby can shorten the slot hole exposure time, reduces the risk of hole collapse, reduces the labor intensity and the safety risk of operating personnel, when connecting, through the contraction member contraction second connecting sleeve, guarantees the stability and the strength of reinforcing steel joint, meets the engineering quality requirement. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0019] Figure 1 It is the structural schematic diagram of the utility model;

[0020] Figure 2This is a schematic diagram of the structure of the first connecting sleeve and the second connecting sleeve in this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of this utility model in use.

[0022] In the figure, the following labels are used: 1. First connecting sleeve; 2. Second connecting sleeve; 3. Shrinkage member; 301. Connecting ring; 302. Connecting plate; 303. Fastener; 4. First reinforcing bar; 5. Second reinforcing bar. Detailed Implementation

[0023] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0024] It should be noted that when a component is referred to as "fixed," "set," or "connected" to another component, it may be located directly or indirectly on that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. The terms "first," "second," etc., are used for ease of description only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "Many" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0025] like Figures 1 to 3 As shown in the figure, a quick-connecting rebar joint device according to one embodiment of the present invention includes a first connecting sleeve 1 and a second connecting sleeve 2 coaxially arranged. The first end of the first connecting sleeve 1 is connected to the second end of the second connecting sleeve 2. The first connecting sleeve 1 is threaded to a first rebar 4, and the second connecting sleeve 2 is connected to a second rebar 5. The inner diameter of the second connecting sleeve 2 is larger than the diameter of the second rebar 5. The side wall of the second connecting sleeve 2 is provided with a plurality of expansion joints. A shrinking member 3 is sleeved on the outer side of the second connecting sleeve 2. The shrinking member 3 is used to shrink the second connecting sleeve 2 so that the inner wall of the second connecting sleeve 2 is tightly attached to the outer wall of the second rebar 5.

[0026] In construction, after the reinforcement cage is processed, the first connecting sleeve 1 is threadedly connected with the first reinforcement 4 of the first reinforcement cage, the first reinforcement cage is hoisted to the slot and clamped and fixed; then the second reinforcement cage is hoisted, the joint of the second reinforcement 5 of the second reinforcement cage is aligned with the reinforcement joint of the first reinforcement cage which is fixed in the slot; the inner diameter of the second connecting sleeve 2 is larger, facilitating the connection with the reinforcement joint of the second reinforcement cage; after the joints are all aligned and inserted, the second connecting sleeve 2 is tightened by the contraction piece 3, the expansion joint is narrowed, the inner wall of the second connecting sleeve 2 is tightly attached to the outer wall of the second reinforcement 5, and the connection of the two reinforcement cages is completed.

[0027] In the embodiment, the quick connecting reinforcement joint device significantly improves the connection efficiency of the reinforcement cage in the underground engineering enclosure structure. By increasing the inner diameter of the second connecting sleeve 2, the alignment accuracy is reduced, the alignment process of the reinforcement joint is simplified, and the construction time is shortened, so that the slot exposure time can be shortened, the hole collapse risk can be reduced, and the labor intensity and safety risk of the workers can be reduced. In addition, by tightening the second connecting sleeve 2 by the contraction piece, the stability and strength of the reinforcement joint are ensured, and the engineering quality requirements are met.

[0028] As shown in Figure 3 In a preferred example, the inner wall of the first connecting sleeve 1 is provided with internal threads, and the first end of the first reinforcement 4 is provided with external threads matched with the internal threads.

[0029] In installation, the worker first sleeves the first connecting sleeve 1 on the joint of the first reinforcement 4, and then rotates the first connecting sleeve 1 by using a wrench, so that the external threads of the first reinforcement 4 are screwed into the internal threads of the first connecting sleeve 1 until a stable thread engagement is formed.

[0030] As shown in Figure 3 In a preferred example, the inner wall of the second connecting sleeve 2 is provided with first anti-slip textures, and the second end of the second reinforcement 5 is provided with second anti-slip textures.

[0031] Specifically, the first anti-slip textures and the second anti-slip textures are threads of the same specification.

[0032] In use, the second end of the second reinforcement 5 is inserted into the second connecting sleeve 2, the contraction piece is tightened, and the first anti-slip textures provided on the inner wall of the second connecting sleeve 2 are in close contact with the second anti-slip textures on the outer wall of the second reinforcement 5. When the first anti-slip textures and the second anti-slip textures are threads of the same specification, the threads are engaged with each other to generate a large friction force, ensuring the firm connection between the second connecting sleeve 2 and the second reinforcement 5, effectively preventing the connection from loosening or separating due to factors such as vibration and load change in subsequent construction or use, thereby greatly improving the stability and safety of the entire reinforcement cage.

[0033] In a preferred example, the length of the first connecting sleeve 1 is not less than 2 times the diameter of the first reinforcement 4.

[0034] The length of the second connecting sleeve 2 is not less than 3 times the diameter of the second steel bar 5.

[0035] In this embodiment, by controlling the length of the first connecting sleeve 1 and the second connecting sleeve 2, the connection strength of the steel bar joint is ensured. The longer connection length ensures that the steel bars have sufficient overlap and engagement in the connection area, thereby improving the stability and durability of the connection, effectively resisting various external forces generated during construction and use, preventing the connection area from being too short and causing connection failure, and improving the stability and safety of the underground engineering enclosure structure.

[0036] As shown in Figure 2 In a preferred example, the first connecting sleeve 1 and the second connecting sleeve 2 are of an integrated structure.

[0037] In this embodiment, the first connecting sleeve 1 and the second connecting sleeve 2 of the integrated structure are simple in structure, and there is no gap between the first connecting sleeve 1 and the second connecting sleeve 2, which has good structural stability and avoids safety hazards caused by improper connection or looseness. In addition, the integrated structure also helps to improve construction efficiency, reduces the time for on-site assembly and debugging, and reduces construction costs.

[0038] As shown in Figure 1 and Figure 2 In a preferred example, the shrinker 3 is detachably connected with the second connecting sleeve 2.

[0039] Specifically, the shrinker 3 includes a connecting ring 301 sleeved outside the second connecting sleeve 2, the connecting ring 301 is provided with a notch, and the connecting ring 301 is provided with connecting plates 302 at both ends, the connecting plates 302 are provided with connecting holes, and the connecting holes are provided with fasteners 303 penetrating through, and rotating the fasteners 303 is used to adjust the distance between the two connecting plates 302, and tighten or loosen the second connecting sleeve 2.

[0040] In use, the connecting ring 301 of the shrinker 3 is sleeved outside the second connecting sleeve 2, and then the fastener 303 is inserted into the connecting hole and tightened. With the rotation of the fastener 303, the distance between the two connecting plates 302 gradually decreases, the inner diameter of the connecting ring 301 gradually decreases, and the connecting ring 301 generates an inward shrinking force on the second connecting sleeve 2, so that the second connecting sleeve 2 tightly wraps the outer wall of the second steel bar 5. During this process, the pre-tightening force of the fastener 303 is controlled by a torque wrench, and the rotation degree of the fastener 303 can be adjusted according to actual needs to achieve the desired tightening effect. When the connection reaches the predetermined tightening degree, the rotation of the fastener 303 is stopped, and the connection of the second connecting sleeve 2 and the second steel bar 5 is completed.

[0041] In the embodiment, the detachable shrinker 3 can tighten or loosen the second connecting sleeve 2, has high flexibility and adjustability, and can be adjusted according to different construction requirements. In addition, the notch on the connecting ring 301 facilitates the shrinker 3 to be sleeved on the second connecting sleeve 2, and allows the shrinker 3 to be detached and replaced when necessary, thereby improving the convenience and efficiency of construction. At the same time, the center line of the fastener 303 is perpendicular to the center line of the steel bar, that is, the force direction of the rotating fastener 303 is perpendicular to the center line of the steel bar, which facilitates the force and does not twist the steel bar.

[0042] In a preferred example, the shrinker 3 is fixedly connected with the second connecting sleeve 2.

[0043] Specifically, the shrinker 3 is welded with the second connecting sleeve 2.

[0044] In the embodiment, the shrinker 3 is welded with the second connecting sleeve 2, has high connection strength, ensures the connection stability and reliability between the shrinker 3 and the second connecting sleeve 2, and can prevent the shrinker 3 from being lost. The welding point is arranged away from the notch of the shrinker 3, avoids affecting the normal shrinkage function of the shrinker 3, ensures that the shrinker 3 can be normally used, and effectively tightens or loosens the second connecting sleeve 2.

[0045] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A quick connect reinforcing bar joint device, characterised in that, The first connecting sleeve and the second connecting sleeve are coaxially arranged, the first end of the first connecting sleeve is connected with the second end of the second connecting sleeve, the first connecting sleeve is screwed with the first steel bar, the second connecting sleeve is connected with the second steel bar, the inner diameter of the second connecting sleeve is larger than the diameter of the second steel bar, the side wall of the second connecting sleeve is provided with a plurality of expansion joints, and the outer side of the second connecting sleeve is provided with a contraction member.

2. A quick connect reinforcing joint device as claimed in claim 1, wherein, The inner wall of the first connecting sleeve is provided with an internal thread, and the outer wall of the first end of the first steel bar is provided with an external thread matched with the internal thread.

3. A quick connect reinforcing bar joint device as claimed in claim 1, wherein, The length of the first connecting sleeve is not less than 2 times the diameter of the first steel bar.

4. A quick connect reinforcing joint device as claimed in claim 1, wherein, The inner wall of the second connecting sleeve is provided with a first anti-skid texture, and the outer wall of the second end of the second steel bar is provided with a second anti-skid texture.

5. A quick connect reinforcing joint device as claimed in claim 4, wherein, The first anti-skid texture and the second anti-skid texture are threads with the same specifications.

6. A quick connect reinforcing bar joint device as claimed in claim 1, wherein, The length of the second connecting sleeve is not less than 3 times the diameter of the second steel bar.

7. A quick connect reinforcing bar joint device as claimed in claim 1, wherein, The first connecting sleeve and the second connecting sleeve are an integral structure.

8. A quick connect reinforcing bar joint device as claimed in any one of claims 1 to 7, wherein, The contraction member is detachably connected with the second connecting sleeve.

9. A quick connect reinforcing joint device as claimed in claim 8, wherein, The contraction member comprises a connecting ring sleeved outside the second connecting sleeve, the connecting ring is provided with a notch, the connecting ring is provided with connecting plates at both ends, the connecting plates are provided with connecting holes, fasteners are arranged in the connecting holes, the fasteners are rotated to adjust the distance between the two connecting plates, and the second connecting sleeve is tightened or loosened.

10. A quick connect reinforcing bar joint device as claimed in any one of claims 1 to 7, wherein, The contraction member is fixedly connected with the second connecting sleeve.

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