Box girder hogging moment tensioning reserved notch mold hanging bracket and hoisting equipment

Abstract

The utility model relates to the technical field of hoisting equipment, and provides a box girder hogging moment stretch-draw reserved notch mould hanging bracket and hoisting equipment, the box girder hogging moment stretch-draw reserved notch mould hanging bracket comprises a bracket body, a plurality of first hanging lugs and a plurality of second hanging lugs, the bracket body comprises an enclosure frame, a first cross rod and a second cross rod, the enclosure frame forms a hollow area, and the first hanging lugs and the second hanging lugs are arranged in the hollow area. The first cross rod and the second cross rod are arranged in the hollow area and are connected with the enclosure frame; the plurality of first lifting lugs are respectively arranged on the first cross rod and the second cross rod; the multiple second lifting lugs are all arranged in the hollow area, and the multiple second lifting lugs are arranged along the surrounding frame in a surrounding mode. And the stability and safety of the reserved notch mold in the hoisting process are enhanced through multi-point hoisting. And unforeseen circumstances such as unbalance and hanging ring unhooking caused by the fact that the reserved notch mold is directly grabbed and hoisted by hoisting equipment are avoided.

Description

Technical Field

[0001] This utility model relates to the field of hoisting equipment technology, and in particular to a box girder negative bending moment tensioning reserved slot mold hanger and hoisting equipment. Background Technology

[0002] During the prefabrication of the beam, the subsequent design needs to reserve tensioning slots on the top slab of the box girder to facilitate the construction of the next step. The timing of the removal of the reserved slot mold is extremely critical. The removal work needs to be completed after the initial setting of the concrete and before the final setting. During the removal, the concrete has a strong adsorption force on the reserved slot mold. The reserved slot mold is usually lifted and removed by hoisting equipment. During the removal process, accidents such as the hoisting equipment becoming unbalanced and the lifting rings coming off the hook are prone to occur. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in related technologies. To this end, this utility model proposes a box girder negative bending moment tensioning pre-reserved slot mold hanger, which aims to improve the stability and safety during demolding construction.

[0004] This utility model also proposes a hoisting device.

[0005] According to the first aspect of the present invention, the box girder negative bending moment tensioning reserved slot mold hanger includes:

[0006] The frame includes a perimeter frame, a first horizontal bar, and a second horizontal bar. The perimeter frame forms a hollow area, and the first horizontal bar and the second horizontal bar are both located in the hollow area and connected to the perimeter frame.

[0007] Multiple first lifting lugs are respectively arranged on the first crossbar and the second crossbar;

[0008] Multiple second lifting lugs are provided in the hollow area and are arranged around the frame.

[0009] According to the embodiment of this utility model, the box girder negative bending moment tensioning pre-reserved slot mold hanger, by adding a demolding hanger during the demolding of the pre-reserved slot mold, makes construction safer and more effective, reduces product damage, and ensures product integrity. The frame is equipped with a surrounding frame, and a first horizontal bar and a second horizontal bar are installed in the hollow area of ​​the surrounding frame to ensure that the weight of the frame is not excessive, facilitates lifting, and also ensures a certain structural strength. In addition, a first lifting lug is provided on both the first and second horizontal bars for external lifting equipment to hook onto. The first lifting lug is located on the first and second horizontal bars, while the second lifting lug is located on the surrounding frame, that is, multiple second lifting lugs are located on the periphery of multiple first lifting lugs, so that the force is more concentrated when the external lifting equipment grabs multiple first lifting lugs. Multiple second lifting lugs can be connected to the pre-reserved slot mold to be demolded. In this way, multi-point lifting enhances the stability and safety of the pre-reserved slot mold lifting process. It avoids accidents such as imbalance and disengagement of the lifting ring caused by the lifting equipment directly grabbing the pre-reserved slot mold.

[0010] According to one embodiment of the present invention, a plurality of the first lifting lugs are all arranged to extend upwards;

[0011] And / or, multiple second lugs are all provided to extend downwards.

[0012] According to one embodiment of the present invention, the first lifting lug and / or the second lifting lug are provided with lifting holes.

[0013] According to one embodiment of the present invention, the frame includes a third horizontal bar, which is disposed in the hollow area and connected to the enclosure frame. The first horizontal bar and the second horizontal bar are symmetrically arranged about the third horizontal bar.

[0014] According to one embodiment of the present invention, the first lug on the first crossbar and the first lug on the second crossbar are symmetrically arranged about the third crossbar.

[0015] According to one embodiment of the present invention, the frame includes longitudinal bars, which are disposed in the hollow area and connect the enclosure, the first horizontal bar, the second horizontal bar and the third horizontal bar.

[0016] According to one embodiment of the present invention, the frame is a square frame structure.

[0017] According to one embodiment of the present invention, the frame includes four connected side bars, each of which is provided with at least one second lifting lug.

[0018] According to one embodiment of the present invention, both the first crossbar and the second crossbar are provided with at least two first lifting lugs, and the side bar parallel to the first crossbar is provided with at least two second lifting lugs.

[0019] According to a second aspect of the present invention, the hoisting equipment includes a crane, slings, and the aforementioned box girder negative bending moment tensioning reserved slot mold hanger, wherein the crane is connected to the first lifting lug of the box girder negative bending moment tensioning reserved slot mold hanger via the slings.

[0020] The hoisting equipment according to the present utility model includes the above-mentioned box girder negative bending moment tensioning reserved slot mold hanger, and therefore has all the technical effects of the above-mentioned box girder negative bending moment tensioning reserved slot mold hanger, which will not be repeated here.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a top view of the box girder negative bending moment tensioning reserved slot mold hanger provided in this embodiment of the utility model.

[0024] Figure 2 This is a front view structural diagram of the box girder negative bending moment tensioning reserved slot mold hanger provided in this embodiment of the utility model.

[0025] Figure label:

[0026] 1. Enclosure frame; 2. First horizontal bar; 3. Second horizontal bar; 4. Third horizontal bar; 5. Vertical bar; 6. First lifting lug; 7. Second lifting lug. Detailed Implementation

[0027] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0028] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0030] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0032] Please refer to the reference. Figure 1 and Figure 2According to the first aspect of the present invention, the box girder negative bending moment tensioning reserved slot mold hanger includes a frame, a plurality of first lifting lugs 6 and a plurality of second lifting lugs 7. The frame includes a surrounding frame 1, a first horizontal bar 2 and a second horizontal bar 3. The surrounding frame 1 forms a hollow area. The first horizontal bar 2 and the second horizontal bar 3 are both located in the hollow area and connected to the surrounding frame 1. The plurality of first lifting lugs 6 are respectively arranged on the first horizontal bar 2 and the second horizontal bar 3. The plurality of second lifting lugs 7 are all located in the hollow area and are arranged in a ring around the surrounding frame 1.

[0033] According to the embodiment of this utility model, the box girder negative bending moment tensioning pre-reserved slot mold hanger, by adding a demolding hanger during the demolding of the pre-reserved slot mold, makes construction safer and more effective, reduces product damage, and ensures product integrity. The frame is provided with a surrounding frame 1, and a first horizontal bar 2 and a second horizontal bar 3 are installed in the hollow area of ​​the surrounding frame 1 to ensure that the weight of the frame is not excessive, making it easy to lift, while also ensuring a certain structural strength. In addition, a first lifting lug 6 is provided on both the first horizontal bar 2 and the second horizontal bar 3 to facilitate hooking by external lifting equipment. The first lifting lug 6 is located on the first horizontal bar 2 and the second horizontal bar 3, while the second lifting lug 7 is located on the surrounding frame 1, that is, multiple second lifting lugs 7 are located on the periphery of multiple first lifting lugs 6, so that the force is more concentrated when the external lifting equipment grabs multiple first lifting lugs 6. Multiple second lifting lugs 7 can be connected to the pre-reserved slot mold to be demolded. In this way, the stability and safety of the pre-reserved slot mold hoisting process are enhanced by multi-point hoisting. This avoids accidents such as imbalance and disengagement of the lifting ring caused by the lifting equipment directly grabbing the pre-reserved slot mold.

[0034] Understandably, the dimensions of the frame 1 should be larger than the dimensions of the pre-reserved slot mold to be demolded, to ensure stability during the lifting process. During the demolding process of the pre-reserved slot mold, the lifting equipment can be connected to multiple first lifting lugs 6 via steel cables, and simultaneously, multiple second lifting lugs 7 can be connected to the pre-reserved slot mold via steel cables. It should be noted that the number of times the lifting equipment is connected to the first lifting lugs 6 and the number of times the pre-reserved slot mold is connected to the second lifting lugs 7 are the same, that is, the lifting equipment is connected to four first lifting lugs 6, and the pre-reserved slot mold is also connected to four second lifting lugs 7, so that the load on the lifting frame is evenly distributed at multiple points, eliminating safety hazards such as uneven stress and hook breakage.

[0035] In this embodiment, the frame can be a one-piece molded structure to ensure connection strength and stability. Alternatively, the first horizontal bar 2, the second horizontal bar 3, and the enclosure 1 can be connected by welding or other methods. Simultaneously, the first lifting lug 6 and the second lifting lug 7 can also be welded and fixed to the frame. It is understood that both the first lifting lug 6 and the second lifting lug 7 are located on the inner side of the enclosure 1 to reduce the risk of impact and improve safety.

[0036] According to one embodiment of the present invention, a plurality of first lifting lugs 6 are all arranged to extend upwards to facilitate connection with external lifting equipment; optionally, a plurality of second lifting lugs 7 are all arranged to extend downwards to facilitate connection with a reserved slot mold located below.

[0037] According to one embodiment of this utility model, the first lifting lug 6 has a lifting hole, and optionally, the second lifting lug 7 has a lifting hole. This facilitates the attachment of a lifting hook, making lifting and connection easier.

[0038] According to one embodiment of this utility model, the frame includes a third horizontal bar 4, which is disposed in the hollow area and connected to the enclosure 1. The first horizontal bar 2 and the second horizontal bar 3 are symmetrically arranged about the third horizontal bar 4. Exemplarily, the first horizontal bar 2 and the second horizontal bar 3 are arranged parallel to each other, while the third horizontal bar 4 is located between the first horizontal bar 2 and the second horizontal bar 3 to enhance the structural strength between them and ensure that the enclosure 1 is not easily deformed at this location. The symmetrical arrangement of the first horizontal bar 2 and the second horizontal bar 3 about the third horizontal bar 4 ensures that the force is evenly distributed on both sides of the enclosure 1.

[0039] According to one embodiment of this utility model, the first lifting lug 6 on the first crossbar 2 and the first lifting lug 6 on the second crossbar 3 are symmetrically arranged about the third crossbar 4. It is understood that the first lifting lug 6 is used to connect to external lifting equipment. The first lifting lug 6 on the first crossbar 2 and the second lifting lug 7 on the second crossbar 3 are simultaneously connected to the lifting equipment. The symmetrical arrangement of the first lifting lug 6 on the first crossbar 2 and the second lifting lug 7 on the second crossbar 3 about the third crossbar 4 ensures that the force is evenly distributed on both sides of the lifting frame, enhancing the stability and safety during the lifting process.

[0040] According to one embodiment of this utility model, the frame includes longitudinal bars 5, which are disposed in the hollow area and connect the surrounding frame 1, the first horizontal bar 2, the second horizontal bar 3, and the third horizontal bar 4. That is, the longitudinal bars 5 are cross-connected to the first horizontal bar 2, the second horizontal bar 3, and the third horizontal bar 4 to improve the overall strength of the hanger. For example, both ends of the longitudinal bars 5 are connected to the inner side of the surrounding frame 1 and are perpendicular to the first horizontal bar 2, the second horizontal bar 3, and the third horizontal bar 4. Optionally, the connection method between the longitudinal bars 5 and the surrounding frame 1, the first horizontal bar 2, the second horizontal bar 3, and the third horizontal bar 4 can be welding or integral molding, which is not limited here.

[0041] According to one embodiment of the present invention, the frame 1 is a square frame structure, which is convenient for production and is compatible with a square pre-reserved slot mold.

[0042] According to one embodiment of the present invention, the frame 1 includes four connected side bars, each side bar is provided with at least one second lifting lug 7, so that the second lifting lug 7 on each side bar is connected to a reserved slot mold, the force is evenly distributed, and the hanger is prevented from becoming unbalanced.

[0043] According to one embodiment of this utility model, both the first horizontal bar 2 and the second horizontal bar 3 are provided with at least two first lifting lugs 6, and the side bars parallel to the first horizontal bar 2 are provided with at least two second lifting lugs 7. For example, both the first horizontal bar 2 and the second horizontal bar 3 are provided with two first lifting lugs 6, and the frame 1 has two oppositely arranged side bars, which are parallel to the first horizontal bar 2 and the second horizontal bar 3. Thus, each of these two side bars is provided with two second lifting lugs 7 to correspond to the two first lifting lugs 6 on the first horizontal bar 2 and the second horizontal bar 3. In this case, the four first lifting lugs 6 are connected to external lifting equipment, and the four second lifting lugs 7 are connected to the pre-reserved slot mold. This four-point lifting enhances the stability and safety during the lifting process. Of course, the number of first lifting lugs 6 and second lifting lugs 7 can also be increased to allow workers to choose, thereby adapting to the lifting of pre-reserved slot molds of different sizes and specifications, improving adaptability.

[0044] According to a second aspect of the present invention, the hoisting equipment includes a crane, slings, and the aforementioned box girder negative bending moment tensioning reserved slot mold hanger. The crane is connected to the first lifting lug 6 of the box girder negative bending moment tensioning reserved slot mold hanger via slings.

[0045] The hoisting equipment according to the present utility model includes the above-mentioned box girder negative bending moment tensioning reserved slot mold hanger, and therefore has all the technical effects of the above-mentioned box girder negative bending moment tensioning reserved slot mold hanger, which will not be repeated here.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be covered within the scope of the claims of the present invention.

Claims

1. A box girder negative moment tensioning preformed slot mold hanger, characterized by, The box girder negative bending moment tensioning reserved notched die hanger comprises a frame body, a plurality of first lifting lugs, and a plurality of second lifting lugs. The frame body comprises a surrounding frame, a first horizontal rod, and a second horizontal rod. The surrounding frame forms a hollow region. The first horizontal rod and the second horizontal rod are arranged in the hollow region and connected with the surrounding frame.

2. The box girder negative moment tensile preformed notch form hanger of claim 1, wherein, The plurality of first lifting lugs are arranged on the first horizontal rod and the second horizontal rod, respectively. The plurality of second lifting lugs are arranged in the hollow region and surround the surrounding frame.

3. The box girder negative moment tensile preformed notch form hanger of claim 1, wherein, The plurality of first lifting lugs are arranged upwards.

4. The box girder negative moment tensile preformed notch form hanger of claim 1, wherein, The plurality of second lifting lugs are arranged downwards.

5. The box girder negative moment tensile preformed notch form hanger of claim 4, wherein, The first lifting lug and / or the second lifting lug is provided with a lifting hole.

6. The box girder negative moment tensile preformed notch form hanger of claim 4, wherein, The frame body comprises a third horizontal rod arranged in the hollow region and connected with the surrounding frame.

7. The box girder negative moment tensile pre-slit form hanger of any one of claims 1 to 6, wherein, The first horizontal rod and the second horizontal rod are symmetrically arranged about the third horizontal rod.

8. The box girder negative moment tensile preformed notch form hanger of claim 7, wherein, The first lifting lug on the first horizontal rod and the first lifting lug on the second horizontal rod are symmetrically arranged about the third horizontal rod.

9. The box girder negative moment tensile preformed notch form hanger of claim 8, wherein, The frame body comprises a vertical rod arranged in the hollow region and connected with the surrounding frame, the first horizontal rod, the second horizontal rod, and the third horizontal rod.

10. A hoisting apparatus characterized by, The surrounding frame is a square frame structure. The surrounding frame comprises four connected edge rods. Each of the edge rods is provided with at least one second lifting lug. The first horizontal rod and the second horizontal rod are each provided with at least two first lifting lugs. The edge rod parallel to the first horizontal rod is provided with at least two second lifting lugs. The crane is connected with the first lifting lug of the box girder negative bending moment tensioning reserved notched die hanger through the lifting rope.

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