Simple dismounting device for overhead line system portal

Abstract

The utility model relates to the technical field of railway construction, and discloses an overhead line system portal simple dismantling device which comprises two stand columns, two lower suspension pipes arranged between the two stand columns and upper suspension pipes arranged at the tops of the lower suspension pipes. A portal is fixed to the lower suspension pipe, a dismounting mechanism is arranged on the lower suspension pipe, a lifting mechanism is arranged on the dismounting mechanism, and the dismounting mechanism comprises angle steel fixed to the top of the lower suspension pipe, a vertical mounting rod arranged at the top of the angle steel and a mounting cylinder arranged at the end, away from the angle steel, of the vertical mounting rod. Two mounting holes are formed in the two ends of the top of the angle steel respectively, lower suspension U-shaped anchor bolts are arranged in the mounting holes, the bottom of the vertical mounting rod is welded and fixed to the angle steel, and upper suspension U-shaped anchor bolts are welded to the side, close to the upper suspension pipe, of the mounting cylinder. The factors of large tonnage of hoisting machinery, high dismantling risk and the like for dismantling the portal frame after the line is opened are eliminated, and the portal frame can be manually and quickly dismantled.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a simple dismantling device for a contact network door frame. Background Art

[0002] During the capacity expansion and renovation of existing railway stations, additional lines require transitional construction to minimize the impact on new lines. This transitional approach typically involves installing the additional lines on existing rigid beams via portal frames before the new line opens. After the new line opens, the additional lines are suspended from the outer supports of the new line, and the transition portal frames are removed. By the time the portal frames are removed, the new line has already opened. Due to line restrictions, the cranes used for portal removal are large, resulting in high lifting risks and low mechanical efficiency, which has become a limiting factor in the capacity expansion and renovation project.

[0003] Mechanical dismantling of the gantry is not only inefficient but also involves high risks in lifting. Therefore, a simple and efficient manual dismantling structure is needed. Utility Model Content

[0004] The present application provides a simple dismantling device for a contact network gantry to solve the problems in the background technology.

[0005] In order to solve the above technical problems, the present application provides a simple dismantling device for a contact network gantry, comprising: two columns, two lower suspension tubes arranged between the two columns, and an upper suspension tube arranged at the top of the lower suspension tube; a gantry is fixed on the lower suspension tube, a dismantling mechanism is arranged on the lower suspension tube, and a lifting mechanism is arranged on the dismantling mechanism, the dismantling mechanism comprises an angle steel fixed to the top of the lower suspension tube, a vertical mounting rod arranged at the top of the angle steel, and a mounting tube arranged at the end of the vertical mounting rod away from the angle steel, two mounting holes are respectively provided at both ends of the top of the angle steel, and lower-hanging U-shaped anchor bolts are arranged in the mounting holes, the bottom of the vertical mounting rod is welded and fixed to the angle steel, and an upper-hanging U-shaped anchor bolt is welded on the side of the mounting tube close to the upper suspension tube.

[0006] In some embodiments of the present application, the lifting mechanism includes a lifting rod inserted into the mounting tube, an arc-shaped rod arranged on the top of the lifting rod, and a lever hoist installed on the arc-shaped rod, and the wire rope on the lever hoist is fixedly connected to the door frame.

[0007] In some embodiments of the present application, the distance between the mounting holes on both sides is consistent with the distance between the two lower suspension pipes.

[0008] In some embodiments of the present application, a safety rope is tied to the mounting leg of the door frame, and the other end of the safety rope is tied to the bottom of the column.

[0009] In some embodiments of the present application, the two lower suspension pipes and the upper suspension pipe are fixed by welding steel pipes.

[0010] In some embodiments of the present application, the vertical installation rod is perpendicular to the angle steel, and the vertical installation rod is biased toward one side of the upper suspension tube.

[0011] In some embodiments of the present application, the inclination angle of the lifting rod is no greater than 5°.

[0012] Compared with the prior art, the present invention has the following characteristics and beneficial effects:

[0013] The utility model can remove the portal frame on the hard beam only by manual labor. The dismantling device is light in weight and simple to operate. The dismantling personnel can quickly carry out construction after training. It can solve the high-risk factors such as the need for large-tonnage lifting machinery to dismantle the portal frame after the line is opened, and the high-risk dismantling. The portal frame on the hard beam can be quickly dismantled. The device can be divided into a dismantling mechanism and a lifting mechanism, is light in weight, can be carried manually, does not need to adopt large-scale mechanical assistance, can be completely dismantled manually, is not restricted by the on-site construction site, has strong applicability, and can produce better results when promoted and used. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a side view schematic diagram of an embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the main view of an embodiment of the utility model;

[0016] Figure 3 It is a schematic diagram of the disassembly process of an embodiment of the present utility model.

[0017] In the figure, 100, column; 200, lower hanging pipe; 300, upper hanging pipe; 400, door frame; 500, dismantling mechanism; 510, angle steel; 511, mounting hole; 520, vertical mounting rod; 530, mounting tube; 540, lower hanging U-shaped anchor bolt; 550, upper hanging U-shaped anchor bolt; 600, lifting mechanism; 610, lifting rod; 620, arc-shaped rod; 630, lever hoist; 640, wire rope. DETAILED DESCRIPTION

[0018] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0020] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0022] like Figure 1-3 As shown, according to some embodiments of the present application, a simple dismantling device for a contact network gantry comprises: two columns 100, two lower hanging pipes 200 arranged between the two columns 100, and an upper hanging pipe 300 arranged on the top of the lower hanging pipe 200; a gantry 400 is fixed on the lower hanging pipe 200, a dismantling mechanism 500 is provided on the lower hanging pipe 200, and a lifting mechanism 600 is provided on the dismantling mechanism 500, and the dismantling mechanism 500 includes a lifting mechanism 600 fixed on the top of the lower hanging pipe 200. The angle steel 510 is provided at the top, the vertical mounting rod 520 is arranged at the top of the angle steel 510, and the mounting tube 530 is arranged at the end of the vertical mounting rod 520 away from the angle steel 510. Two mounting holes 511 are respectively provided at both ends of the top of the angle steel 510, and the mounting holes 511 are provided with lower hanging U-shaped anchor bolts 540. The bottom of the vertical mounting rod 520 is welded and fixed to the angle steel 510, and the side of the mounting tube 530 close to the upper hanging pipe 300 is welded with an upper hanging U-shaped anchor bolt 550.

[0023] According to some embodiments of the present application, the lifting mechanism 600 includes a lifting rod 610 inserted into the mounting tube 530, an arc-shaped rod 620 arranged on the top of the lifting rod 610, and a lever hoist 630 installed on the arc-shaped rod 620, and the wire rope 640 on the lever hoist 630 is fixedly connected to the door frame 400.

[0024] According to some embodiments of the present application, the distance between the mounting holes 511 on both sides is consistent with the distance between the two lower suspension pipes 200 .

[0025] According to some embodiments of the present application, a safety rope is tied to the mounting leg of the door frame 400 , and the other end of the safety rope is tied to the bottom of the column 100 .

[0026] According to some embodiments of the present application, the two lower suspension pipes 200 and the upper suspension pipe 300 are fixed by welding steel pipes.

[0027] According to some embodiments of the present application, the vertical installation rod 520 is perpendicular to the angle steel 510 , and the vertical installation rod 520 is biased toward one side of the upper suspension pipe 300 .

[0028] According to some embodiments of the present application, the inclination angle of the lifting rod 610 is no greater than 5°.

[0029] According to some embodiments of the present application, when in use, 1. fix the lower base of the portal frame removal device to the lower chord beam, and use a torque wrench to firmly fix the base so that it does not move;

[0030] 2. Fix the bottom of the lifting device to the lower base, and fix the locking clamp of the lifting device to the upper chord beam, so that the lifting device will tilt after being stressed, and the angle with the vertical line will be less than 5°;

[0031] 3. Use a 0.75T lever hoist 630 to fix it in the middle of the gantry 400. Connect the wire rope 640 to the lever hoist 630 through the pulley on the lifting device 600.

[0032] 4. Manually remove the fixing bolts on the portal frame. The lower personnel tighten the wire rope 640 to make the portal frame 400 pass the upper chord beam. After pushing the portal frame 400 out of the hard crossbeam, they slowly lower the wire rope 640 to the ground.

[0033] 5. Two clues are fixed on the card.

[0034] The lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism. The lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism. The lifting mechanism comprises a lifting mechanism, a lifting mechanism, and a lifting mechanism. The lifting mechanism comprises an angle steel fixed to the top of the lower suspension tube, a vertical mounting rod arranged on the top of the angle steel, and a mounting tube arranged on the vertical mounting rod away from the angle steel. Two mounting holes are respectively provided at both ends of the top of the angle steel, and lower hanging U-shaped anchor bolts are provided in the mounting holes. The bottom of the vertical mounting rod is welded and fixed to the angle steel, and an upper hanging U-shaped anchor bolt is welded on the side of the mounting tube close to the upper suspension tube. The device is light in weight and simple to operate. It eliminates the factors such as the large tonnage of lifting machinery required for dismantling the portal frame after the line is opened and the high risk of dismantling. The portal frame can be dismantled quickly and manually.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A simple dismantling device for a contact network gantry, comprising: Two columns (100), two lower hanging pipes (200) arranged between the two columns (100), and an upper hanging pipe (300) arranged on the top of the lower hanging pipe (200); characterized in that a door frame (400) is fixed on the lower hanging pipe (200), a dismantling mechanism (500) is arranged on the lower hanging pipe (200), a lifting mechanism (600) is arranged on the dismantling mechanism (500), the dismantling mechanism (500) includes an angle steel (510) fixed to the top of the lower hanging pipe (200), and a lifting mechanism (600) is arranged on the angle steel. A vertical mounting rod (520) is provided at the top of the (510), and a mounting tube (530) is provided at one end of the vertical mounting rod (520) away from the angle steel (510), two mounting holes (511) are respectively provided at both ends of the top of the angle steel (510), and a downward-hanging U-shaped anchor bolt (540) is provided in the mounting hole (511), the bottom of the vertical mounting rod (520) is welded and fixed to the angle steel (510), and an upward-hanging U-shaped anchor bolt (550) is welded on the side of the mounting tube (530) close to the upper suspension pipe (300).

2. The simple dismantling device for a contact network gantry according to claim 1, characterized in that: The lifting mechanism (600) includes a lifting rod (610) inserted into the installation tube (530), an arc-shaped rod (620) arranged on the top of the lifting rod (610), and a lever hoist (630) installed on the arc-shaped rod (620), and a steel wire rope (640) on the lever hoist (630) is fixedly connected to the door frame (400).

3. The simple dismantling device for a contact network gantry according to claim 1, characterized in that: The distance between the mounting holes (511) on both sides is consistent with the distance between the two lower suspension pipes (200).

4. The simple dismantling device for a contact network gantry according to claim 1, characterized in that: A safety rope is tied to the mounting leg of the door frame (400), and the other end of the safety rope is tied to the bottom of the column (100).

5. The simple dismantling device for a contact network gantry according to claim 1, characterized in that: The two lower hanging pipes (200) and the upper hanging pipe (300) are fixed by welding steel pipes.

6. The simple dismantling device for a contact network gantry according to claim 1, characterized in that: The vertical installation rod (520) is perpendicular to the angle steel (510), and the vertical installation rod (520) is biased toward one side of the upper suspension pipe (300).

7. The simple dismantling device for a contact network gantry according to claim 2, characterized in that: The inclination angle of the lifting rod (610) is no greater than 5°.

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