Simple device for adjusting hinge joint steel bars of prefabricated empty box girder

Abstract

The utility model relates to the technical field of bridge engineering, in particular to a simple device for adjusting hinge joint steel bars of a prefabricated empty box girder, which comprises a supporting rod, a pressing rod is rotatably mounted on the side wall of the upper end of the supporting rod, a lifting hook is arranged at one end of the pressing rod, and a stabilizing piece for improving the balance of the supporting rod is arranged at the lower end of the supporting rod. During use, the bottom end of the supporting rod is inserted from the gap of the two hollow slabs, and the stabilizing piece abuts against the connecting part of the two hollow slabs, so that the bearing area of the supporting rod is increased, and the arrangement stability and the use safety of equipment are improved. After the supporting rod is erected, the lifting hook is used for hooking a reinforcing steel bar needing to be straightened, then the other end of the pressing rod is held and pressed downwards, and the aim of straightening is achieved. The device is simple and light in structure, can be lifted, carried and moved by one person, does not need assistance of other people, and saves manpower; other power is not needed, convenience and rapidness are achieved, the limitation of a site on movement is reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of bridge engineering, and in particular to a simple device for adjusting the hinged steel bars of a prefabricated empty box girder. Background Art

[0002] At present, the most widely used and largest proportion of structures in my country's highway bridges are prefabricated assembled concrete beams. Common prefabricated structures are mainly hollow slabs, small box beams, and T beams. Hollow slabs often adopt a multi-plate structure with a relatively low beam height. A cavity is set in the middle to reduce the deadweight, and a hinged joint is used to connect the cross-bridge. However, before the hollow slab hinge casting construction, it is necessary to check the U-shaped steel bars extending from the hinge and straighten the deformed and bent steel bars that are covered. After the bridge is laid, large equipment cannot be transported, so workers are required to knock and straighten it. It is time-consuming and labor-intensive, and the steel bars may be damaged due to poor control of the knocking force.

[0003] To this end, the patent document with announcement number CN 212945143 U discloses a steel bar straightening device for the hinge joint of a prefabricated hollow slab of a bridge, and its main method of use is to adjust the steel bars of the hinge joint through a hydraulic jack. This technology includes a hydraulic jack bracket. After the prefabricated slab beam is hoisted, there are many steel bars on the bridge deck. The machine is large in size, and is affected by the embedded steel bars on the top of the prefabricated box beam during construction. It is not easy to move and is not portable enough, resulting in low construction efficiency and serious waste of manpower.

[0004] To this end, the present application provides a simple device for adjusting the hinged joint reinforcement of a prefabricated empty box girder to solve the problem of the inconvenience of moving the equipment on the surface of a prefabricated bridge. Utility Model Content

[0005] The purpose of the present application is to solve the problems existing in the prior art and to propose a simple device for adjusting the hinged joint reinforcement of a prefabricated empty box girder.

[0006] In order to achieve the above purpose, this application adopts the following technical solutions:

[0007] A simple device for adjusting hinged steel bars of a prefabricated empty box beam comprises a support rod, a pressure rod is rotatably mounted on the side wall of the upper end of the support rod, a hook is arranged at one end of the pressure rod, and a stabilizing member for improving the balance of the support rod is arranged at the lower end of the support rod.

[0008] Preferably, the support rod and the pressure rod are connected via a cross fastener.

[0009] Preferably, a lifting ring is detachably mounted on the end of the pressure rod, and a lifting hook is arranged at the bottom end of the lifting ring.

[0010] Preferably, the hook is fixed to the lifting ring by welding.

[0011] Preferably, a sleeve is rotatably mounted on the side wall of the lower end of the lifting ring, and the lifting hook is mounted in the sleeve.

[0012] Preferably, the hook handle end is threadedly connected to the sleeve.

[0013] Preferably, the stabilizing member comprises a flange arranged at the lower end of the support rod, and the flange is connected to a pyramid head via a fastener.

[0014] Preferably, the other end of the pressure rod is sleeved with a rubber sleeve.

[0015] Compared with the prior art, the present application provides a simple device for adjusting the hinged steel bars of a prefabricated empty box beam, which has the following beneficial effects:

[0016] 1. The present application includes a support rod, a pressure rod is provided at the upper end of the support rod, a hook is provided at one end of the pressure rod, and a stabilizer is provided at the lower end of the support rod. When in use, the bottom end of the support rod is inserted from the gap between the two hollow plates, and the stabilizer is against the joint of the two hollow plates, so as to increase the bearing area of ​​the support rod and improve the placement stability and safety of the equipment. After the support rod is erected, the steel bar that needs to be straightened is hooked with the hook, and then the other end of the pressure rod is held and pressed down to achieve the purpose of straightening. The device has a simple and lightweight structure and can be lifted, carried and moved by one person without the assistance of others, thus saving manpower; it also does not require other power, and is convenient and fast, which reduces the restrictions on movement on the site and improves construction efficiency.

[0017] 2. Support rods and pressure rods are easy to obtain and can be made on site.

[0018] Other advantages, objectives and features of the present application will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of this application.

[0020] Figure 2 It is a front view schematic diagram of the present application.

[0021] Figure 3 For this application Figure 1 Local schematic diagram of point A.

[0022] Figure 4 This is a schematic diagram of the installation of the lifting ring 4 and the lifting hook 5 of the present application.

[0023] Figure 5 This is a cross-sectional view of the installation of the lifting ring 4 on the pressure rod 2 of the present application.

[0024] Figure 61 and 2 are front and side views of the pyramid head 702 of the present application.

[0025] In the figure: 1, support rod; 2, pressure rod; 3, cross fastener; 4, lifting ring; 5, hook; 6, sleeve; 7, stabilizer; 8, rubber sleeve; 701, flange; 702, pyramid head. DETAILED DESCRIPTION

[0026] The following will be combined with the attached examples of the present application Figure 1-6 , the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0027] In order to solve the problems existing in the prior art, the present embodiment provides a simple device for adjusting the hinged joint steel bars of a prefabricated empty box girder, comprising a support rod 1, a pressure rod 2 is rotatably mounted on the upper side wall of the support rod 1, a hook 5 is provided at one end of the pressure rod 2, and a stabilizing member 7 for improving the balance of the support rod 1 is provided at the lower end of the support rod 1.

[0028] The support rod 1 and the compression rod 2 are both made of steel pipes, which are convenient for material acquisition; in order to ensure the load-bearing strength, the support rod 1 and the compression rod 2 are made of steel pipes with an outer diameter of 48 mm. The hook 5 is made of steel bars bent by pressure, so that the hook 5 has a higher strength and reduces the probability of deformation during the straightening and pulling process. In order to avoid interference caused by the U-shaped steel bars on the surface of the hollow slab below the compression rod 2 when the compression rod 2 is pressed down, the hook 5 is set into multiple models, so that the hook 5 has handles of different lengths to adapt to the straightening of U-shaped steel bars in different positions, thereby improving the adaptability of the product.

[0029] Details of the principles of this program:

[0030] When in use, insert the bottom end of the support rod 1 from the gap between the two hollow plates, and the stabilizer 7 rests on the joint of the two hollow plates, so that the support rod 1 stands on a stable plane, improving the placement stability and safety of the equipment. After the support rod 1 stands, use the hook 5 to hook the steel bar that needs to be straightened, and then hold the other end of the pressure rod 2 and press down to achieve the purpose of straightening. The device mainly includes two steel pipes, the support rod 1 and the pressure rod 2. The structure is simple and light. One person can lift, carry and move it without the help of others, saving manpower; no other power is required, which is convenient and fast, which reduces the restriction of the site on movement and improves construction efficiency.

[0031] In a further embodiment of the present solution, a specific rotation connection structure of the support rod 1 and the pressure rod 2 is provided: the support rod 1 and the pressure rod 2 are connected via a cross fastener 3. The cross fastener 3 is a rotating fastener, thereby realizing the rotation connection between the support rod 1 and the pressure rod 2. This structure allows the support rod 1 and the pressure rod 2 to be quickly separated, and materials can be directly obtained on site, which is convenient and fast.

[0032] In a further embodiment of the present invention, the end of the pressure rod 2 is detachably provided with a lifting ring 4, and the lifting hook 5 is arranged at the bottom of the lifting ring 4. The installation part of the lifting hook 5 is separated from the pressure rod 2, so that one of them can be replaced separately after being damaged.

[0033] A platform is provided on the side wall of the lifting ring 4, and a through hole is provided on the platform. A threaded sleeve is provided on the side wall of one end of the pressure rod 2, and the lifting ring 4 can be installed and fixed on the pressure rod 2 by fasteners.

[0034] In a further embodiment of the present invention, the hook 5 is fixed by welding to the eye 4. The eye 4 and the hook 5 are connected as one body to realize the installation of the hook 5. This welding method is more convenient to carry out on the construction site.

[0035] In a further embodiment of this scheme, a sleeve 6 is rotatably mounted on the side wall of the lower end of the lifting ring 4, and the handle end of the hook 5 is mounted in the sleeve 6. The hook 5 can be deflected relative to the lifting ring 4, so that when the pressure rod 2 is pressed, the hook 5 will not be lifted up with one end of the pressure rod 2, so that the hook 5 will not be separated from the steel bar.

[0036] Preferably, a hanging ring can be provided on the lower wall of the hanging ring 4, and the hook 5 can be buckled on the hanging ring, which can also realize the deflection installation of the hook 5 and is more flexible.

[0037] In a further embodiment of the present invention, the handle end of the hook 5 is threadedly connected to the sleeve 6. The hook 5 can be separated from the lifting ring 4, so that the hook 5 can be replaced separately after being deformed due to long-term operation.

[0038] In a further embodiment of the present scheme, a specific structure of a stabilizer 7 is provided, wherein the stabilizer 7 includes a flange 701 disposed at the lower end of the support rod 1, and the flange 701 is connected to a pyramid head 702 via a fastener. The support rod 1 is inserted into the gap between the two hollow plates, and the side wall of the pyramid head 702 fits with the side wall of the junction of the two hollow plates, which greatly increases the bearing area of ​​the support rod 1, thereby improving the vertical stability of the support rod 1, and reducing the probability of the support rod 1 tilting to the side when the pressure rod 2 is pressed down, thereby improving the safety of use. The pyramid head 702 is connected to the pressure rod 2 via the flange 701 and the fastener, so that the pyramid head 702 and the pressure rod 2 can be separated, which is convenient for transportation and maintenance, and is also suitable for scenes where the pyramid head 702 cannot be used.

[0039] In this embodiment, the width of the pyramid head 702 is smaller than the projected length of the pyramid head 702 , so as to adapt to the width of the gap between the two hollow plates and facilitate the insertion of the pyramid head 702 .

[0040] In a further embodiment of the present invention, the other end of the pressure rod 2 is sleeved with a rubber sleeve 8 to improve the comfort of the worker when pressing the pressure rod 2.

[0041] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and application concept of the present application, which should be covered by the protection scope of the present application.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0043] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A simple device for adjusting the hinged steel bars of prefabricated empty box beams, characterized in that: It comprises a support rod (1), a pressure rod (2) being rotatably mounted on the side wall of the upper end of the support rod (1), a hook (5) being provided at one end of the pressure rod (2), and a stabilizing member (7) for improving the balance of the support rod (1) being provided at the lower end of the support rod (1).

2. A simple device for adjusting the hinged steel bars of a prefabricated empty box beam according to claim 1, characterized in that: The support rod (1) and the pressure rod (2) are connected via a cross fastener (3).

3. A simple device for adjusting hinged steel bars of prefabricated empty box beams according to claim 1, characterized in that: The end of the pressure rod (2) is detachably provided with a lifting ring (4), and the lifting hook (5) is arranged at the bottom end of the lifting ring (4).

4. A simple device for adjusting hinged steel bars of prefabricated empty box beams according to claim 3, characterized in that: The lifting hook (5) is fixed to the lifting ring (4) by welding.

5. The simple device for adjusting the hinged steel bars of a prefabricated empty box beam according to claim 3 is characterized in that: A sleeve (6) is rotatably mounted on the side wall of the lower end of the lifting ring (4), and the lifting hook (5) is mounted in the sleeve (6).

6. A simple device for adjusting the hinged steel bars of a prefabricated empty box beam according to claim 5, characterized in that: The handle end of the hook (5) is threadedly connected to the sleeve (6).

7. The simple device for adjusting the hinged steel bars of a prefabricated empty box beam according to claim 1 is characterized in that: The stabilizing member (7) comprises a flange (701) arranged at the lower end of the support rod (1), and the flange (701) is connected to a pyramid head (702) via a fastener.

8. The simple device for adjusting the hinged steel bars of a prefabricated empty box beam according to claim 1 is characterized in that: The other end of the pressure rod (2) is sleeved with a rubber sleeve (8).

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