A cap beam bottom abdomen area jack moving lifting device

Abstract

This utility model applies to the field of prestressed bridge engineering, specifically providing a mobile lifting device for the bottom and web areas of a cap beam. The device includes: a jack for tensioning prestressed steel strands, the jack having a through-hole structure; the jack being fixedly mounted on a mobile trolley; slide rails, the mobile trolley being movably mounted on two slide rails; the two slide rails being connected at their co-directional ends by a fixed steel pipe, with a connecting hook on the fixed steel pipe, the connecting hook connecting to a corresponding first hand-operated hoist; and a second hand-operated hoist, connected to the jack and the mobile trolley. This utility model's mobile lifting device for the bottom and web areas of a cap beam allows the mobile trolley to perform prestressing tensioning operations within confined spaces, solving the problem of moving and positioning medium-sized jacks in confined spaces when manual movement is impossible and reliable mobile equipment is unavailable.

Description

Technical Field

[0001] This utility model belongs to the field of bridge prestressed engineering, and in particular relates to a jack moving and lifting device for the bottom web area of ​​a cap beam. Background Technology

[0002] Currently, the cast-in-place concrete of the cap beam has reached the design strength. Before the bottom formwork (steel formwork) and the formwork support system (full-span scaffold) are removed, jacks are needed to tension the first batch of prestressed steel strands. The working space for tensioning the steel strands in the bottom and web areas of the cap beam is limited by the bottom formwork (steel formwork) channel steel support and the formwork support system pipes. In the relevant technology, there is no relevant auxiliary equipment to assist the medium-sized jacks in moving and positioning. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide a jack moving and lifting device for the bottom and web areas of the cap beam, which aims to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution.

[0005] A jack-moving and lifting device for the bottom and web areas of a cap beam, comprising:

[0006] The jacks used for tensioning prestressed steel strands have a through-hole structure and are fixedly mounted on a mobile trolley.

[0007] The slide rails and the movable trolley are movably mounted on two slide rails; the two slide rails are connected by a fixed steel pipe at the same direction ends, and a connecting hook is provided on the fixed steel pipe, which is connected to the corresponding first hand chain hoist.

[0008] The second-hand chain hoist is connected to the jack and the moving trolley.

[0009] Preferably, it also includes a transverse steel pipe, and a steel pipe connecting fastener is installed at the bottom of the slide rail, and the slide rail is connected to the transverse steel pipe through the steel pipe connecting fastener.

[0010] Preferably, it also includes a steel formwork bottom mold set on the template support system. The steel formwork bottom mold is provided with lifting holes for inserting jacks into the interior of the steel formwork bottom mold to tension the prestressed steel strands inside the steel formwork bottom mold.

[0011] Preferably, the bottom of the mobile trolley is equipped with four wheels, which are distributed in a rectangular pattern.

[0012] Preferably, the mobile trolley is mounted on two slide rails via movable wheels.

[0013] Preferably, the jack can be mounted on the mobile trolley using wire.

[0014] Preferably, the jack is fixedly installed on the mobile trolley using bolt connections.

[0015] Preferably, the slide rail has several positioning holes at equal intervals, and the bottom of the moving trolley is fixedly connected with a retaining ring. The retaining ring is detachably fixedly connected to the slide rail by connecting bolts that are compatible with the positioning holes.

[0016] Compared with the prior art, the jack moving and lifting device in the bottom and web area of ​​the cap beam of this utility model embodiment enables the moving trolley to carry out prestressing tensioning operations in a confined space, and solves the problem of moving and positioning medium-sized jacks in a confined space under the premise that it is impossible to move by manpower alone and there is no mature and reliable mobile equipment. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0018] In the attached diagram:

[0019] Figure 1 This is a front view of a jack moving and lifting device in the bottom and web areas of a cap beam according to an embodiment of this utility model;

[0020] Figure 2 A perspective view of the jack moving and lifting device in the bottom and web areas of the cap beam provided in this embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the first usage state of a jack moving and lifting device in the bottom and web areas of a cap beam according to an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the second usage state of a jack moving and lifting device in the bottom and web areas of a cap beam according to an embodiment of this utility model;

[0023] Figure 5 This is a schematic diagram of the third usage state of a jack moving and lifting device in the bottom and web areas of a cap beam according to an embodiment of this utility model;

[0024] Figure 6 This is a schematic diagram of the fourth usage state of a jack moving and lifting device in the bottom and web areas of a cap beam according to an embodiment of this utility model.

[0025] The above figures include the following reference numerals:

[0026] 1. Jack; 2. Moving trolley; 21. Clamping ring; 22. Connecting bolt; 3. Slide rail; 31. Positioning hole; 4. Connecting hook; 5. Horizontal moving steel pipe; 6. Steel pipe connecting fastener; 7. First hand chain hoist; 8. Second hand chain hoist; 9. Steel formwork bottom form; 91. Lifting hole; 10. Formwork support system. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] like Figure 1 and Figure 2 As shown, in one embodiment of this utility model, a jack moving and lifting device for the bottom and web area of ​​a cap beam includes a jack 1 for tensioning prestressed steel strands. The jack 1 is a through-hole structure and is equipped with an anchor plate. It is a commonly used device for tensioning steel strands in the engineering field. The specific structure is not limited.

[0031] Furthermore, the bottom of the mobile trolley 2 provided in this embodiment is provided with four moving wheels, which are distributed in a rectangular pattern.

[0032] In this embodiment, the mobile trolley 2 is mounted on two slide rails 3 by means of movable wheels, so that the mobile trolley 2 can move along the slide rails 3. Those skilled in the art can reasonably configure the connection structure between the movable wheels and the slide rails 3 as needed, so that the movable wheels can slide stably on the slide rails 3 without disengaging, or the movable wheels can be removed from the slide rails 3 as needed.

[0033] It is understandable that when the trolley 2 does not need to move on the slide rail 3, the trolley 2 can be fixed on the slide rail 3.

[0034] In this embodiment, the jack 1 is fixedly installed on the mobile trolley 2; for example, the jack can be installed on the mobile trolley 2 by means of wire, or the jack 1 can be fixedly installed on the mobile trolley 2 by means of bolt connection.

[0035] In one implementation, such as Figure 2 As shown, a number of positioning holes 31 are equally spaced on the slide rail 3, and a retaining ring 21 is fixedly connected to the bottom of the moving trolley 2. The retaining ring 21 is detachably fixedly connected to the slide rail 3 by a connecting bolt 22 that is compatible with the positioning hole 31.

[0036] For further details, please refer to [link / reference]. Figure 1 and Figure 2 In this embodiment of the utility model, the two slide rails 3 are connected by a fixed steel pipe at their same-direction ends. A connecting hook 4 is provided on the fixed steel pipe, and the connecting hook 4 is connected to the corresponding first hand chain hoist 7.

[0037] In this embodiment, a second manual chain hoist 8 is provided, which is connected to the jack 1 and the moving trolley 2. Figure 1 The diagram shows that the second hand chain hoist 8 is connected to the jack 1. In fact, since the jack 1 is fixedly connected to the moving trolley 2, the two connecting ends of the second hand chain hoist 8 can be connected to the jack 1 and the moving trolley 2 respectively. The second hand chain hoist 8 can be used to move the jack 1 and the moving trolley 2 up or down at the same time. The specific connection method is not limited.

[0038] Please continue to refer to Figure 1 and Figure 2 In this embodiment of the utility model, a transverse steel pipe 5 is also included, and a steel pipe connecting fastener 6 is installed at the bottom of the slide rail 3. The slide rail 3 is connected to the transverse steel pipe 5 through the steel pipe connecting fastener 6.

[0039] like Figure 3 As shown, in this embodiment, a steel mold bottom mold 9 is also provided on the template support system 10. The steel mold bottom mold 9 is provided with a lifting hole 91, which is used to put the jack 1 into the interior of the steel mold bottom mold 9 for tensioning the prestressed steel strands inside the steel mold bottom mold 9.

[0040] In specific implementation, such as Figure 3 As shown, the slide rail 3 is horizontally mounted on the support of the bottom mold 9 of the steel mold, ready to tension the prestressed steel strands. The jack is suspended through the lifting hole 91 and placed horizontally on the mobile trolley 2 with the slide rail 3. The jack 1 and the mobile trolley 2 can be tied together with wire to fix the jack 1 on the mobile trolley 2.

[0041] Next, as Figure 4 As shown, the jack 1, the moving trolley 2 and the slide rail 3 are lifted together by the first hand chain hoist 7 at the front and rear ends of the slide rail 3, so that the jack 1 is located directly behind the prestressed steel strand to be tensioned. The prestressed steel strand is pulled by the second hand chain hoist 8 in front of the moving trolley 2 to pass through the jack 1. The jack 1 is in place and the tensioning operation begins.

[0042] Then, as Figure 5 As shown, after the prestressed steel strand is tensioned, the jack 1 is detached from the prestressed steel strand by releasing the second hand-operated hoist 8 in front of the moving trolley 2. Then, the jack 1, the moving trolley 2 and the slide rail 3 are lowered together by the first hand-operated hoists 7 at the front and rear ends of the slide rail 3, so that the slide rail 3 is placed flat on the support of the bottom mold 9 of the steel mold.

[0043] Finally, as Figure 6 As shown, the first hand-operated hoist 7 is used to lift the jack 1 and the moving trolley 2 through the left lifting hole 91. The moving trolley 2 is disengaged from the slide rail 3, and then the slide rail 3 is moved horizontally to the left so that the center of the slide rail 3 is on the same horizontal axis as the left prestressed steel strand. The jack 1 is suspended through the left lifting hole 91 and placed horizontally on the moving trolley 2 with the slide rail 3. The jack 1 and the moving trolley 2 are tied together with wire. This process is repeated. Figure 4 and Figure 5 The tensioning steps.

[0044] exist Figures 3-6 The jack 1, the moving trolley 2, and the slide rail 3 shown in the diagram are simplified schematic diagrams.

[0045] In summary, using the mobile device provided in this embodiment, the mobile trolley 2 can perform prestressing tensioning operations in a confined space. The jack moving and lifting device for the bottom and web areas of the cap beam involved in this embodiment solves the problem of moving and positioning medium-sized jacks in confined spaces under the premise that it is impossible to move them by manpower alone and there are no mature and reliable mobile devices.

[0046] The above solutions are merely illustrative examples of preferred embodiments, but are not limited thereto. When implementing this invention, appropriate substitutions and / or modifications can be made according to the user's needs.

[0047] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.

[0048] Although embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for this utility model. Other modifications can be readily implemented by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and examples shown and described herein.

Claims

1. A jack-moving and lifting device for the bottom and belly areas of a cap beam, characterized in that, include: The jack (1) is used for tensioning prestressed steel strands. The jack (1) is a through-hole structure. The jack (1) is fixedly installed on the moving trolley (2). The slide rail (3) and the mobile trolley (2) are movably set on the two slide rails (3); the two slide rails (3) are connected by a fixed steel pipe at the same direction end, and a connecting hook (4) is set on the fixed steel pipe, and the connecting hook (4) is connected to the corresponding first hand chain hoist (7). The second hand chain hoist (8) is connected to the jack (1) and the moving trolley (2).

2. The cap-beam-soffit-abdomen area jack moving lifting device according to claim 1, characterized in that, It also includes a transverse steel pipe (5), and a steel pipe connecting fastener (6) is installed at the bottom of the slide rail (3); The slide rail (3) is connected to the transverse steel pipe (5) by the steel pipe connecting fastener (6).

3. The cap-beam-soffit-abdomen area jack moving lifting device according to claim 2, characterized in that, It also includes a steel formwork bottom mold (9) set on the formwork support system (10); The bottom mold of the steel mold (9) is provided with a lifting hole (91), which is used to put the jack (1) into the interior of the bottom mold of the steel mold (9).

4. The cap-beam-soffit-abdomen area jack moving lifting device according to claim 3, characterized in that, The bottom of the mobile trolley (2) is equipped with four wheels, which are distributed in a rectangular pattern.

5. The cap-beam-soffit-abdomen area jack-and-slide lifting device according to claim 4, characterized in that, The mobile trolley (2) is mounted on two slide rails (3) via moving wheels.

6. The jack moving and lifting device for the bottom web area of ​​the cap beam according to any one of claims 2 to 5, characterized in that, The jack can be installed on the mobile trolley (2) using wire.

7. A roof beam soffit belly area jack and slipform apparatus according to any one of claims 2 to 5, wherein, The jack (1) is fixedly installed on the mobile trolley (2) by bolt connection.

8. The cap-beam-soffit belly area jack-and-slide lift device of any one of claims 2-5, wherein, The slide rail (3) has several positioning holes (31) at equal intervals. The bottom of the moving trolley (2) is fixedly connected with a retaining ring (21). The retaining ring (21) is detachably fixedly connected to the slide rail (3) by a connecting bolt (22) that is compatible with the positioning hole (31).

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