Bridge hoisting equipment

Abstract

The utility model provides bridge hoisting equipment which comprises a bridge, a U-shaped frame is sleeved on the bridge, two ends of the U-shaped frame are fixedly connected with lifting lugs, the upper surface of each lifting lug is provided with a vertically arranged insertion hole, a stud is inserted into the insertion hole, the upper end of the stud is fixedly connected with a threaded rod, and the threaded rod is fixedly connected with the U-shaped frame. Threaded blind holes matched with the threaded rods are formed in the middle positions of the lower surfaces of the studs, the threaded rod on one stud is in threaded connection with the interior of the threaded blind hole in the other stud, an upper nut is arranged on the upper side of the penetrating hole and is in threaded connection with the corresponding stud, and a lower nut is arranged on the lower side of the penetrating hole and is in threaded connection with the corresponding stud. The lower nuts are in threaded connection with the studs, and a positioning piece is installed at the upper end of the uppermost layer of studs. The cable tray fixing device has the following beneficial effects that a proper number of studs can be selected according to the installation height of a cable tray, the studs do not need to be cut off, and no material waste is caused.

Description

Technical Field

[0001] The utility model relates to a bridge hoisting device, belonging to the technical field of bridges. Background Technique

[0002] Cable trays are divided into trough type, tray type, ladder type, grid type and other structures, and are composed of brackets, cross arms and installation accessories, etc. The cable trays in buildings can be erected independently or attached to various buildings (structures) and pipe gallery brackets, and should reflect the characteristics of simple structure, beautiful shape, flexible configuration and convenient maintenance. All parts need to be galvanized. The cable trays installed outdoors in buildings.

[0003] Hoisting is a common installation method for cable trays. A U-shaped frame is sleeved on the cable tray, and then the U-shaped frame is installed in areas such as the building ceiling by using two stud bolts. That is, after the upper end of the stud bolt is fixed in areas such as the building ceiling, the stud bolt passes through the insertion hole on the U-shaped frame. There are two nuts threadedly connected to the stud bolt, and the relative positions of the stud bolt and the U-shaped frame are restricted by the two nuts, so as to complete the hoisting of the cable tray. Since the installation height of the cable tray needs to be adjusted according to the site, the length of the stud bolt is generally long. When the installation height of the cable tray is determined, the redundant part of the stud bolt is cut off. This method causes the cut-off stud bolt not to be utilized, resulting in a large amount of waste of the stud bolt. Therefore, it is necessary to design a bridge hoisting device that does not waste stud bolts. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a bridge hoisting device to solve the problems put forward in the above background technology. The utility model realizes selecting the appropriate number of stud bolts according to the installation height of the bridge, without the need for cutting treatment of the stud bolts, and there is no material waste.

[0005] In order to achieve the above purpose, the utility model is realized through the following technical solutions: a bridge hoisting device, including a bridge, a U-shaped frame is sleeved on the bridge, lifting lugs are fixedly connected to both ends of the U-shaped frame, a vertically arranged insertion hole is opened on the upper surface of the lifting lug, a stud bolt is inserted in the insertion hole, a threaded rod is fixedly connected to the upper end of the stud bolt, a threaded blind hole matching with the threaded rod is opened in the middle position of the lower surface of the stud bolt, the threaded rod on one stud bolt is threadedly connected in the threaded blind hole on another stud bolt, an upper nut is arranged above the insertion hole, the upper nut is threadedly connected to the stud bolt, a lower nut is arranged below the insertion hole, the lower nut is threadedly connected to the stud bolt, and a positioning member is installed at the upper end of the uppermost stud bolt.

[0006] Further, the positioning member includes an internally threaded cylinder, and the threaded rod on the uppermost stud is threadedly connected inside the internally threaded cylinder. A connection plate is fixedly connected to the upper end of the internally threaded cylinder, and two fixing holes for inserting expansion bolts are symmetrically formed on the upper surface of the connection plate.

[0007] Further, limit screws for adjusting the relative position between the U-shaped frame and the bridge are threadedly connected to both parallel sides of the U-shaped frame, and one end of each limit screw is in contact with the bridge.

[0008] Further, circular holes are formed on both parallel sides of the U-shaped frame. Threaded sleeves are provided on one side of each of the two circular holes facing away from each other. The threaded sleeves are concentrically arranged with the circular holes. One end of each threaded sleeve is fixedly connected to the U-shaped frame, and the limit screws are threadedly connected inside the threaded sleeves.

[0009] Further, a reinforcing rib is fixedly connected to the bottom of the U-shaped frame, and the reinforcing rib is arranged along the length direction of the horizontal part of the U-shaped frame.

[0010] Further, the lifting lug and the U-shaped frame are of an integrally formed structure, and the lifting lug and the U-shaped frame are arranged perpendicular to each other.

[0011] Further, the threaded rod and the stud are of an integrally formed structure, and the threaded rod and the stud are concentrically arranged.

[0012] Advantages of the present utility model:

[0013] 1. According to the installation height of the bridge, select an appropriate number of studs. Screw the threaded rod on one stud into the threaded blind hole on another stud to achieve the assembly of adjacent two studs. And so on, complete the assembly of multiple studs. Adjust the length of the threaded rod in the threaded blind hole, so that the length formed by multiple studs increases or decreases, making the length formed by multiple studs meet the requirements of the bridge installation height. Then use the upper nut and the lower nut to limit the relative position between the U-shaped frame and the structure formed by multiple studs, without the need to cut the studs, and there is no material waste.

[0014] 2. Connect and fix threaded sleeves on both parallel sides of the U-shaped frame, and then screw the limit screws into the threaded sleeves. On the one hand, complete the threaded connection between the limit screws and the U-shaped frame. On the other hand, there is no need to increase the thickness of the U-shaped frame to stably connect the limit screws. Turn the two limit screws so that the two limit screws are respectively in contact with the two sides of the bridge, thereby restricting the relative position between the U-shaped frame and the bridge, facilitating the stable installation of bridges with different widths in the U-shaped frame, and expanding the scope of application. Description of the drawings

[0015] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present utility model will become more obvious:

[0016] Figure 1 Structural schematic diagram of a bridge hoisting device of the present utility model;

[0017] Figure 2 Assembly schematic diagram of the lifting lug and the U-shaped frame in a bridge hoisting device of the present utility model;

[0018] Figure 3 Assembly schematic diagram of the threaded rod and the stud in a bridge hoisting device of the present utility model;

[0019] In the figure: 1 - bridge, 2 - U-shaped frame, 3 - reinforcing rib, 4 - limit screw, 5 - lower nut, 6 - lifting lug, 7 - upper nut, 8 - stud, 9 - connecting plate, 10 - fixing hole, 11 - internal thread cylinder, 12 - insertion hole, 13 - threaded sleeve, 14 - round hole, 15 - threaded blind hole, 16 - threaded rod. Specific embodiments

[0020] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please refer to Figure 1 and Figure 2 , the present utility model provides a technical solution: a bridge hoisting device, including a bridge 1, a U-shaped frame 2 is sleeved on the bridge 1, lifting lugs 6 are fixedly connected to both ends of the U-shaped frame 2, wherein the lifting lug 6 and the U-shaped frame 2 are integrally formed structures, and the lifting lug 6 and the U-shaped frame 2 are arranged perpendicular to each other. A reinforcing rib 3 is fixedly connected to the bottom of the U-shaped frame 2, wherein the reinforcing rib 3 is arranged along the length direction of the horizontal part of the U-shaped frame 2, and the reinforcing rib 3 improves the structural strength of the U-shaped frame 2.

[0022] Refer to Figure 1 , Figure 2 and Figure 3, a vertical insertion hole 12 is provided on the upper surface of the lifting lug 6. A stud 8 is inserted into the insertion hole 12. A threaded rod 16 is connected and fixed to the upper end of the stud 8. The threaded rod 16 and the stud 8 are integrally formed structures, and the threaded rod 16 and the stud 8 are concentrically arranged. A threaded blind hole 15 matching the threaded rod 16 is provided in the middle position of the lower surface of the stud 8. The threaded rod 16 on one stud 8 is threadedly connected into the threaded blind hole 15 on another stud 8. An upper nut 7 is provided above the insertion hole 12, and the upper nut 7 is threadedly connected to the stud 8. A lower nut 5 is provided below the insertion hole 12, and the lower nut 5 is threadedly connected to the stud 8. According to the installation height of the bridge 1, an appropriate number of studs 8 are selected, so that the threaded rod 16 on one stud 8 is screwed into the threaded blind hole 15 on another stud 8 to realize the assembly of two adjacent studs 8. By analogy, the assembly of multiple studs 8 is completed. The length of the threaded rod 16 in the threaded blind hole 15 is adjusted, and thus the length formed by multiple studs 8 is increased or shortened, so that the length formed by multiple studs 8 meets the requirements of the installation height of the bridge 1. Then, the upper nut 7 and the lower nut 5 are used to limit the relative position of the U-shaped frame 2 and the structure formed by multiple studs 8, without the need to cut the studs 8, and there is no material waste.

[0023] Refer to Figure 1 , the threaded rod 16 on the uppermost stud 8 is threadedly connected into the internal thread cylinder 11. A connection disk 9 is connected and fixed to the upper end of the internal thread cylinder 11. Two fixing holes 10 for inserting expansion bolts are symmetrically provided on the upper surface of the connection disk 9. After the connection disk 9 is installed at the required position by using the expansion bolts, the fixation of the structure position formed by multiple studs 8 is completed.

[0024] Refer to Figure 1 and Figure 2 , round holes 14 are provided on both parallel sides of the U-shaped frame 2. Threaded sleeves 13 are provided on one side of the two round holes 14 facing away from each other. The threaded sleeves 13 and the round holes 14 are concentrically arranged. One end of the threaded sleeve 13 is connected and fixed to the U-shaped frame 2. The limit screws 4 for adjusting the relative position of the U-shaped frame 2 and the bridge 1 are threadedly connected into the threaded sleeves 13. Threaded sleeves 13 are connected and fixed to both parallel sides of the U-shaped frame 2, and then the limit screws 4 are screwed into the threaded sleeves 13. On the one hand, the threaded connection between the limit screws 4 and the U-shaped frame 2 is completed. On the other hand, there is no need to increase the thickness of the U-shaped frame 2 to stably connect the limit screws 4. The two limit screws 4 are turned so that the two limit screws 4 are respectively in contact with the two sides of the bridge 1, so that the relative position of the U-shaped frame 2 and the bridge 1 is restricted, which is convenient for stably installing bridges 1 with different widths in the U-shaped frame 2 and expanding the scope of application.

[0025] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For a person skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be construed as limiting the claims concerned.

[0026] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bridge hoisting device, comprising a bridge (1), characterized in that: A U-shaped frame (2) is sleeved on the bridge frame (1), and both ends of the U-shaped frame (2) are connected and fixed with lifting ears (6). The upper surface of the lifting ear (6) is provided with a vertically arranged insertion hole (12), and a stud (8) is inserted in the insertion hole (12). The upper end of the stud (8) is connected and fixed with a threaded rod (16), and a threaded blind hole (15) matching with the threaded rod (16) is provided in the middle of the lower surface of the stud (8). The threaded rod (16) on one stud (8) is threadedly connected to the threaded blind hole (15) on another stud (8). An upper nut (7) is provided on the upper side of the insertion hole (12), and the upper nut (7) is threadedly connected to the stud (8). A lower nut (5) is provided on the lower side of the insertion hole (12), and the lower nut (5) is threadedly connected to the stud (8). A positioning piece is installed on the upper end of the uppermost stud (8).

2. A bridge hoisting device according to claim 1, characterized in that: The positioning member comprises an internal threaded barrel (11), the threaded rod (16) on the uppermost stud (8) is threadedly connected in the internal threaded barrel (11), the upper end of the internal threaded barrel (11) is connected and fixed with a connecting plate (9), and the upper surface of the connecting plate (9) is symmetrically provided with two fixing holes (10) for inserting expansion bolts.

3. The bridge hoisting equipment according to claim 1, characterized in that: The two parallel side surfaces of the U-shaped frame (2) are both threadedly connected with limit screws (4) for adjusting the relative position of the U-shaped frame (2) and the bridge frame (1), and one end of the limit screw (4) is in contact with the bridge frame (1).

4. A bridge hoisting device according to claim 3, characterized in that: The U-shaped frame (2) has two parallel side surfaces each with a circular hole (14), and a threaded sleeve (13) is provided on the opposite side of the two circular holes (14). The threaded sleeve (13) is arranged concentrically with the circular hole (14), one end of the threaded sleeve (13) is connected and fixed to the U-shaped frame (2), and the limit screw (4) is threadedly connected in the threaded sleeve (13).

5. The bridge hoisting equipment according to claim 1, characterized in that: A reinforcing rib (3) is connected and fixed to the bottom of the U-shaped frame (2), and the reinforcing rib (3) is arranged along the length direction of the horizontal portion of the U-shaped frame (2).

6. The bridge hoisting equipment according to claim 1, characterized in that: The lifting lug (6) and the U-shaped frame (2) are an integrally formed structure, and the lifting lug (6) and the U-shaped frame (2) are arranged perpendicular to each other.

7. The bridge hoisting equipment according to claim 1, characterized in that: The threaded rod (16) and the stud (8) are an integrally formed structure, and the threaded rod (16) and the stud (8) are arranged concentrically.

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