A detachable cap beam protection frame for prefabricated box beams lifted by two machines

Abstract

The present invention relates to a detachable cap beam protection sleeve frame for double lifting of prefabricated box beams, comprising a sleeve frame body, a hook and a steel wire rope; the bottom end of the hook is mounted on the surface of one side of the sleeve frame body; a baffle is arranged on the outer side of the sleeve frame body. This product is mainly composed of a sleeve frame body, a hook, a steel wire rope, a threaded steel rod, a nut and a baffle, etc., which can meet the protection requirements of the operators who are required to set the support pedestal stone on the top surface of the cap beam, install the support, install the beam sand bucket, measure the elevation and verify the position before the double lifting of the box beam. At the same time, it also meets the safety protection requirements of the operators who are required to command the crane driver to accurately drop the beam and adjust the height of the sand bucket above the cap beam during the installation of the concrete prefabrication. It effectively solves the problem of no protective measures for the above operations on the cap beam, and ensures that the sleeve frame body and the end block are reliably fixed, while avoiding the situation where the sleeve frame body is stuck by the side beam and the end block and is difficult to remove.

Description

Technical Field

[0001] The invention belongs to the technical field of prefabricated box girder erection, and in particular relates to a prefabricated box girder double-machine lifting and detachable cap beam protection sleeve frame. Background Art

[0002] Before the double-machine lifting and installation of the prefabricated concrete box girder, the operating personnel are required to go to the top surface of the cap beam in advance to set the support shims, install the supports, install the sand bucket for the beam, measure the elevation and verify the position, etc.; during the double-machine lifting and installation of the prefabricated concrete box girder, the operating personnel are required to command the crane driver to accurately drop the beam above the cap beam and adjust the height of the sand bucket, etc.

[0003] During the above construction operations, at this stage, workers in various projects generally perform risky operations above the cap beam without any protective measures; some projects adopt the method of pre-embedding steel bars at the ends and pulling steel wire ropes, but the steel bars need to be pre-embedded in advance and need to be cut off after the erection is completed, leaving exposed steel bars above the cap beam, which is easy to rust during subsequent use and affect the appearance of the cap beam. At the same time, there is the extra workload of pre-embedding steel bars in advance; there are also half-width or integral guardrails installed on the cap beam, but the guardrails are only suitable for the construction content above the cap beam before the box beam is erected. When the box beam is erected, the guardrails will affect the erection of the box beam; there are also integral sleeves installed on the blocks on both sides of the cap beam, but after the side beams of the box beam are erected, the side beams will occupy half of the area of ​​the cap beam. Due to the small gap between the side beams and the end blocks, the sleeves will not only affect the precise positioning of the side beams, but also the entire sleeve will be stuck by the side beams and end blocks and difficult to remove.

[0004] In view of this, a detachable cap beam protection sleeve frame for prefabricated box beams lifted by two machines is proposed. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the following technical problems in the prior art: during construction, at this stage, workers generally perform risky operations above the cap beam without any protective measures; some projects also adopt the method of pre-embedding steel bars at the end and pulling steel wire ropes, but the steel bars need to be pre-embedded in advance and need to be cut off after the erection is completed, leaving exposed steel bars above the cap beam, which is easy to rust during subsequent use, affecting the appearance of the cap beam, and there is also the extra workload of pre-embedding steel bars in advance; there are also half-width or integral guardrails set on the cap beam, but the guardrails are only suitable for the construction content above the cap beam before the box beam is erected. When the box beam is erected, the guardrails will affect the erection of the box beam; there are also integral sleeves set on the blocks on both sides of the cap beam, but after the side beams of the box beam are erected, the side beams will occupy half of the area of ​​the cap beam. Due to the small gap between the side beams and the end blocks, the sleeves will not only affect the precise positioning of the side beams, but also the entire sleeve will be stuck by the side beams and the end blocks and difficult to remove.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a prefabricated box girder double-machine lifting detachable cap beam protection sleeve frame, comprising a sleeve frame body, a hook and a wire rope; the bottom end of the hook is installed on one side of the sleeve frame body;

[0008] A baffle is arranged on the outer side of the sleeve frame body, a docking hole is opened on the surface of one side of the top end of the sleeve frame body facing the baffle, a threaded steel rod penetrates the docking hole, and the threaded steel rod penetrates one end extending out of the sleeve frame body and docks with the baffle.

[0009] As an optimal technical solution for a prefabricated box girder double-machine lifting detachable cap beam protection sleeve, the top rings of the two groups of hooks are connected by wire ropes, and the threaded steel rod is located in the sleeve frame and has a nut on one end with external thread transmission.

[0010] The beneficial effects of the present invention are as follows: the product is mainly composed of a sleeve frame, a hook, a steel wire rope, a threaded steel rod, a nut and a baffle, etc., which can meet the protection requirements of workers in the setting of support pedestals on the top surface of the cap beam, the installation of supports, the installation of beam sand buckets, the measurement of elevations and position verification, etc. before the double-machine lifting and erection of the box beam. At the same time, it also meets the safety protection requirements of workers in the process of concrete prefabrication erection and installation, such as directing the crane driver to accurately drop the beam and adjust the height of the sand bucket above the cap beam; it effectively solves the problem of performing the above-mentioned operations on the cap beam without protective measures, and ensures that the sleeve frame and the end blocks are reliably fixed, while avoiding the situation where the sleeve frame is stuck by the side beams and the end blocks and is difficult to remove.

[0011] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0013] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 .

[0014] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 .

[0015] Figure numerals: 100, sleeve frame body; 101, docking hole; 200, hook; 300, threaded steel rod; 400, baffle; 500, nut; 600, wire rope. DETAILED DESCRIPTION

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0019] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0020] Example

[0021] Reference Figure 1 and 2, is an embodiment of the present invention, which provides a prefabricated box girder double-machine lifting detachable cap beam protection sleeve frame, including a sleeve frame body 100, a hook 200 and a wire rope 600;

[0022] A baffle plate 400 is disposed on the outer side of the housing 100, and a docking hole 101 is provided on the surface of one side of the top of the housing 100 facing the baffle plate 400, and a threaded steel rod 300 is passed through the docking hole 101, and the threaded steel rod 300 passes through one end of the housing 100 and docks with the baffle plate 400;

[0023] Taking into account the cap beam on the far side of the box beam erection, since it needs to occupy about half of the cap beam position after the side beam is erected, the size of the frame body 100 is designed to be between 1 / 3 and 3 / 8 of the length of the side block of the cap beam, and combined with the threaded steel rod 300, nut 500 and baffle 400, it does not affect the precise positioning of the box beam; the width of the frame body 100 is about 5 cm larger than the thickness of the block section.

[0024] Specifically, the bottom end of the hook 200 is mounted on the surface of one side of the frame body 100 , and the top rings of the two groups of hooks 200 are connected by a steel wire rope 600 .

[0025] Specifically, one end of the threaded steel rod 300 located in the sleeve frame body 100 is externally threaded with a nut 500 .

[0026] Through this implementation, it can be achieved that: the device is hoisted from the ground to the end blocks on both sides of the cap beam at the end of the beam erection direction (i.e., the newly erected prefabricated box beam), the threaded steel rod 300 is adjusted to make the baffle 400 stick to the end of the block, and the nut 500 is tightened to make the frame body 100 and the baffle 400 reliably fixed, and then the wire rope 600 is installed on the hooks 200 on both sides, and the personnel above the cap beam hang the safety belt on the safety life rope of the wire rope 600, and under this protective condition, the construction operations such as pre-construction preparation and erection process of the double-machine lifting and hanging frame for concrete prefabricated box beams are carried out.

[0027] On the cap beam between the box beam that has been erected and the box beam that is being erected, the safety life rope is set by using the embedded steel bars of the erected box beam and pulling steel wire ropes horizontally along the cap beam.

[0028] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A prefabricated box girder double-machine lifting detachable cap beam protection sleeve frame, characterized in that: It comprises a frame body (100), a hook (200) and a steel wire rope (600); A baffle (400) is arranged on the outer side of the sleeve frame body (100), and a docking hole (101) is opened on a surface of a side of the top end of the sleeve frame body (100) facing the baffle (400), and a threaded steel rod (300) passes through the docking hole (101), and the threaded steel rod (300) passes through one end extending out of the sleeve frame body (100) and docks with the baffle (400).

2. The prefabricated box beam double-machine lifting detachable cap beam protection sleeve frame according to claim 1 is characterized in that: The bottom end of the hook (200) is mounted on a surface of one side of the housing (100).

3. The prefabricated box beam double-machine lifting detachable cap beam protection sleeve frame according to claim 1 is characterized in that: The top rings of the two groups of hooks (200) are connected by a steel wire rope (600).

4. The prefabricated box beam double-machine lifting detachable cap beam protection sleeve frame according to claim 1 is characterized in that: One end of the threaded steel rod (300) located in the sleeve frame body (100) is externally threaded with a nut (500).

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