A punching jig for long-span steel box bridges

Abstract

The present invention discloses a punching jig for a large-span steel box bridge, which relates to the technical field of bridges, and comprises an upper contact plate and a lower contact plate, wherein the interior of the upper contact plate and the lower contact plate are provided with evenly arranged positioning holes, and both sides of the upper contact plate and the lower contact plate are fixedly connected with fixing ears, wherein a screw is movably inserted into the interior of the fixing ear, and a spring is sleeved in the middle of the outer surface of the screw, and the two ends of the screw are threadedly connected with a shock-absorbing block and a nut in sequence from the inside to the outside. The punching jig for a large-span steel box bridge realizes the function of limiting the T-steel of the bridge, is conducive to the punching operation, ensures the punching accuracy, improves the work efficiency, facilitates the ejection work of the ejection device, saves manpower, has strong practicality, greatly facilitates the installation and disassembly of the punching jig, and further facilitates the placement and taking of the T-steel of the bridge, can be applied to steels of different specifications, and is conducive to the maintenance and care of the later equipment.

Description

Technical Field

[0001] The invention relates to the technical field of bridges, in particular to a punching jig for a large-span steel box bridge. Background Art

[0002] With the rapid development of economy, the application of steel bridges in long-span bridges and urban overpasses is becoming more and more common. Compared with steel trusses, steel arch bridges and other steel bridge forms, steel box girders have the advantages of light weight, economy, easy erection, large spanning capacity, etc., and their engineering applications are more common. The traditional bridge T-steel punching process requires two people to complete the punching operation, that is, one person holds the bridge T-steel and the other person performs the punching operation. This method is inefficient, and the production of bridge T-steel requires high precision. The positioning of the holes on the bridge T-steel is generally arranged by a special person to draw lines, and there is a drawing error, so the accuracy of the punched holes is difficult to guarantee. In addition, the existing large-span steel box bridge punching jig is very inconvenient to install and disassemble, which is not conducive to the maintenance and maintenance of the later equipment. The existing large-span steel box bridge punching jig has poor stability and is not convenient for spatial movement.

[0003] At present, the existing punching jigs for large-span steel box bridges are inconvenient to use and are not conducive to popularization and use. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the present invention provides a punching jig for large-span steel box bridges, which solves the problems of low efficiency, difficulty in ensuring accuracy, inconvenient installation and disassembly, which is not conducive to the maintenance and care of subsequent equipment, poor stability and inconvenient spatial movement of the existing punching jigs for large-span steel box bridges.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical scheme: a punching jig for a large-span steel box bridge, comprising an upper contact plate and a lower contact plate, wherein evenly arranged positioning holes are opened in the interior of the upper contact plate and the lower contact plate, and fixing ears are fixedly connected on both sides of the upper contact plate and the lower contact plate, a screw is movably inserted in the interior of the fixing ear, a spring is sleeved in the middle of the outer surface of the screw, and shock-absorbing blocks and nuts are threadedly connected at both ends of the screw from the inside to the outside in sequence, support rods are fixedly installed at both ends of the bottom of the lower contact plate, an ejection device is slidably installed under the lower contact plate, a top column is installed inside the ejection device, a boss is fixedly installed on the top of the top column, a sleeve is fixedly connected to the bottom of the top column, a limiting plate is fixedly installed inside the sleeve, a driving rod is movably inserted in the middle of the limiting plate, and an air box is sleeved at the bottom of the sleeve.

[0008] Preferably, the outer surface of the upper contact plate is provided with anti-slip grooves arranged at equal distances, and the middle portion of the lower contact plate is provided with a guide hole.

[0009] Preferably, the spring is located between the two fixing ears, one side of the shock absorbing block is slidably connected to one side of the nut, and the other side of the shock absorbing block is movably connected to one side of the fixing ears.

[0010] Preferably, a buffer pad is fixedly mounted on the bottom end of the support rod, and a wheel is fixedly connected to the bottom of the buffer pad.

[0011] Preferably, the top of the ejection device is inserted into the inside of the guide hole, and the protrusion is located inside the guide hole.

[0012] Preferably, a driving handle is fixedly connected to the top end of one side of the driving rod, a piston plate is fixedly connected to the bottom end of the driving rod, and the piston plate is slidably connected to the inner wall of the sleeve.

[0013] Preferably, a pressure plate is fixedly mounted on the bottom of the sleeve, the pressure plate is located inside the air box, and the pressure plate is slidably connected to the inner wall of the air box.

[0014] Preferably, an air inlet and an air outlet are respectively provided at the bottom of the side wall of the sleeve, and an air inlet valve and an air outlet valve are respectively fixedly installed on both sides of the air box.

[0015] Preferably, an air inlet pipe is fixedly connected between the air inlet valve and the air inlet, and an air outlet pipe is fixedly connected between the air outlet valve and the air outlet.

[0016] Preferably, the upper contact plate is located above the lower contact plate, and the thickness of the upper contact plate is equal to the thickness of the lower contact plate.

[0017] (III) Beneficial effects

[0018] The present invention provides a punching jig for a long-span steel box bridge, which has the following beneficial effects:

[0019] (1) The punching jig for the large-span steel box bridge, on the one hand, realizes the function of limiting the bridge T-steel by setting the upper and lower contact plates, which is beneficial to the punching operation; on the other hand, by setting the positioning holes, the punching accuracy is ensured and the work efficiency is improved. Secondly, by setting the guide holes, it is convenient for the ejection device to perform the ejection work, which saves manpower and has strong practicality. In addition, by setting the screw and nut, the installation and disassembly of the punching jig is greatly facilitated, and the placement and removal of the bridge T-steel are further facilitated. It can be applied to steel of different specifications, which is beneficial to the maintenance and maintenance of the equipment in the later stage.

[0020] (2) The punching jig for large-span steel box bridges, on the one hand, enhances the shock-absorbing performance of the punching jig by setting springs and shock-absorbing blocks, ensures the stability of the punching jig, eliminates safety hazards, and has a high safety factor. On the other hand, by setting wheels, the punching jig can be moved to any position in space, thereby improving convenience. Secondly, by setting a convex head and a ejector column, the ejection operation after the punching is completed is convenient, and the operation is simple and quick. In addition, by setting a driving handle, the convenience of use by the staff is greatly improved, which is conducive to the control of the ejection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 A bottom view of the upper contact plate structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the ejection device of the present invention.

[0024] In the figure: upper contact plate 1, anti-slip groove 101, lower contact plate 2, positioning hole 3, guide hole 4, fixing ear 5, screw 6, spring 7, shock absorbing block 8, nut 9, support rod 10, buffer pad 11, wheel 12, ejection device 13, boss 14, ejector column 15, sleeve 16, limit plate 17, drive rod 18, drive handle 19, piston plate 20, air inlet 21, air outlet 22, air inlet pipe 23, air outlet pipe 24, air inlet valve 25, air outlet valve 26, air box 27, pressure plate 28. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] In the description of the present invention, it is necessary to understand that the terms "center", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 1-3 The present invention provides a technical solution: a punching jig for a large-span steel box bridge, comprising an upper contact plate 1 and a lower contact plate 2, wherein evenly arranged positioning holes 3 are provided inside the upper contact plate 1 and the lower contact plate 2, and the positioning holes 3 are provided to ensure the punching accuracy and improve the working efficiency, and the upper contact plate 1 and the lower contact plate 2 are fixedly connected with fixing ears 5 on both sides, and a screw rod 6 is movably inserted inside the fixing ear 5, and a spring 7 is sleeved on the middle part of the outer surface of the screw rod 6, and the two ends of the screw rod 6 are sequentially threadedly connected with a shock absorbing block 8 and a nut 9 from the inside to the outside, and the setting of the screw rod 6 and the nut 9 greatly facilitates the punching process. The installation and disassembly of the hole jig further facilitates the placement and removal of the T-steel of the bridge, and can be applied to steel of different specifications, which is beneficial to the maintenance and servicing of the equipment in the later stage. Support rods 10 are fixedly installed at both ends of the bottom of the lower contact plate 2, and an ejection device 13 is slidably installed at the bottom of the lower contact plate 2. A top column 15 is installed inside the ejection device 13, and a boss 14 is fixedly installed on the top of the top column 15. A sleeve 16 is fixedly connected to the bottom of the top column 15, and a limit plate 17 is fixedly installed inside the sleeve 16. A driving rod 18 is movably inserted in the middle of the limit plate 17, and an air box 27 is sleeved on the bottom of the sleeve 16.

[0029] As a preferred technical solution of the present invention: the outer surface of the upper contact plate 1 is provided with anti-slip grooves 101 arranged at equal distances, and the middle of the lower contact plate 2 is provided with a guide hole 4. By providing the guide hole 4, the ejection device 13 is convenient for ejection work, which saves manpower and has strong practicality.

[0030] As a preferred technical solution of the present invention: the spring 7 is located between the two fixed ears 5, one side of the shock absorbing block 8 is slidably connected to one side of the nut 9, and the other side of the shock absorbing block 8 is movably connected to one side of the fixed ear 5. By arranging the spring 7 and the shock absorbing block 8, the shock absorbing performance of the punching jig is enhanced, the stability of the punching jig is ensured, the safety hazard is eliminated, and the safety factor is high.

[0031] As a preferred technical solution of the present invention: a buffer pad 11 is fixedly installed on the bottom end of the support rod 10, and a wheel 12 is fixedly connected to the bottom of the buffer pad 11. By setting the wheel 12, the punching mold can be moved to any position in space, thereby improving convenience.

[0032] As a preferred technical solution of the present invention: the top of the ejection device 13 is inserted into the inside of the guide hole 4, and the protrusion 14 is located inside the guide hole 4. By providing the protrusion 14 and the ejector column 15, the ejection operation after the punching is completed is facilitated, and the operation is simple and quick.

[0033] As a preferred technical solution of the present invention: a driving handle 19 is fixedly connected to the top end of one side of the driving rod 18, and a piston plate 20 is fixedly connected to the bottom end of the driving rod 18. The piston plate 20 is slidably connected to the inner wall of the sleeve 16. By providing the driving handle 19, the convenience of use by the staff is greatly improved, which is conducive to controlling the ejection device 13.

[0034] As a preferred technical solution of the present invention: a pressing plate 28 is fixedly installed at the bottom of the sleeve 16 , the pressing plate 28 is located inside the air box 27 , and the pressing plate 28 is slidably connected to the inner wall of the air box 27 .

[0035] As a preferred technical solution of the present invention: an air inlet 21 and an air outlet 22 are respectively opened at the bottom of the side wall of the sleeve 16, and an air inlet valve 25 and an air outlet valve 26 are respectively fixedly installed on both sides of the air box 27.

[0036] As a preferred technical solution of the present invention: an air intake pipe 23 is fixedly connected between the air intake valve 25 and the air intake port 21, and an air outlet pipe 24 is fixedly connected between the air outlet valve 26 and the air outlet port 22. By setting the air intake valve 25 and the air outlet valve 26, it is convenient to control and adjust the air intake and air outlet, thereby ensuring the stability of the operation of the air box 27.

[0037] As a preferred technical solution of the present invention: the upper contact plate 1 is located above the lower contact plate 2, and the thickness value of the upper contact plate 1 is equal to the thickness value of the lower contact plate 2. By setting the upper contact plate 1 and the lower contact plate 2, the role of limiting the bridge T steel is achieved, which is beneficial to the drilling operation.

[0038] In summary, when using the punching jig for a large-span steel box bridge, the user rotates the nut 9, then places the bridge T-steel, and then rotates the nut 9 in the opposite direction to tighten the bridge T-steel, and then performs the punching operation. When the punching is completed, the nut 9 is rotated, and then the user presses the driving handle 19, and the driving handle 19 drives the driving rod 18 to move downward, and the driving rod 18 drives the piston plate 20 to move downward. At this time, the gas in the sleeve 16 enters the air box 27 through the air inlet pipe 23, and then the gas pushes the pressure plate 28 to move upward, and at the same time, the pressure plate 28 drives the ejection device 13 to move upward. On the one hand, by setting the upper contact plate 1 and the lower contact plate 2, the bridge T-steel is limited, which is beneficial to the punching operation. On the other hand, by setting the positioning hole 3, the punching accuracy is guaranteed and the work efficiency is improved. By setting the guide hole, it is convenient for the ejection device to perform the ejection work, which saves manpower and is highly practical. In addition, by setting the screw 6 and the nut 9, the installation and disassembly of the punching jig is greatly facilitated, and the placement and removal of the bridge T steel are further facilitated. It can be applied to steel of different specifications, which is beneficial to the maintenance and maintenance of the later equipment. On the one hand, by setting the spring 7 and the shock-absorbing block 8, the shock-absorbing performance of the punching jig is enhanced, the stability of the punching jig is ensured, the safety hazard is eliminated, and the safety factor is high. On the other hand, by setting the wheel 12, the punching jig can be moved to any position in space, which improves convenience. Secondly, by setting the boss 14 and the ejector column 15, the ejection operation after the punching is completed is convenient, and the operation is simple and quick. In addition, by setting the driving handle 19, the convenience of use by the staff is greatly improved, which is beneficial to the control of the ejection device 13.

[0039] It should be noted that, in the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A punching jig for a long-span steel box bridge, comprising an upper abutment plate (1) and a lower abutment plate (2), characterized in that: The upper contact plate (1) and the lower contact plate (2) are both provided with positioning holes (3) arranged evenly, and both sides of the upper contact plate (1) and the lower contact plate (2) are fixedly connected with fixing ears (5), and a screw rod (6) is movably inserted into the interior of the fixing ear (5), and a spring (7) is sleeved in the middle of the outer surface of the screw rod (6), and the two ends of the screw rod (6) are threadedly connected with a shock absorbing block (8) and a nut (9) in sequence from the inside to the outside, and the two ends of the bottom of the lower contact plate (2) are fixedly installed with supporting The rod (10) is provided with an ejection device (13) slidably mounted below the lower contact plate (2), a ejection column (15) is mounted inside the ejection device (13), a convex head (14) is fixedly mounted on the top of the ejection column (15), a sleeve (16) is fixedly connected to the bottom of the ejection column (15), a limit plate (17) is fixedly mounted inside the sleeve (16), a driving rod (18) is movably inserted in the middle of the limit plate (17), and an air box (27) is sleeved on the bottom of the sleeve (16); The outer surface of the upper contact plate (1) is provided with anti-slip grooves (101) arranged at equal distances, and the middle part of the lower contact plate (2) is provided with a guide hole (4); The spring (7) is located between the two fixing ears (5), one side of the damping block (8) is slidably connected to one side of the nut (9), and the other side of the damping block (8) is movably connected to one side of the fixing ears (5); A driving handle (19) is fixedly connected to the top end of one side of the driving rod (18), a piston plate (20) is fixedly connected to the bottom end of the driving rod (18), and the piston plate (20) is slidably connected to the inner side wall of the sleeve (16). A pressure plate (28) is fixedly mounted on the bottom of the sleeve (16), and the pressure plate (28) is located inside the air box (27). The pressure plate (28) is slidably connected to the inner wall of the air box (27). The bottom of the side wall of the sleeve (16) is provided with an air inlet (21) and an air outlet (22), and an air inlet valve (25) and an air outlet valve (26) are fixedly installed on both sides of the air box (27). An air intake pipe (23) is fixedly connected between the air intake valve (25) and the air intake port (21), and an air outlet pipe (24) is fixedly connected between the air outlet valve (26) and the air outlet port (22).

2. The punching jig for a long-span steel box bridge according to claim 1 is characterized in that: A buffer pad (11) is fixedly mounted on the bottom end of the support rod (10), and a wheel (12) is fixedly connected to the bottom of the buffer pad (11).

3. The punching jig for a long-span steel box bridge according to claim 1 is characterized in that: The top of the ejection device (13) is inserted into the interior of the guide hole (4), and the protrusion (14) is located inside the guide hole (4).

4. The punching jig for a long-span steel box bridge according to claim 1 is characterized by: The upper contact plate (1) is located above the lower contact plate (2), and the thickness of the upper contact plate (1) is equal to the thickness of the lower contact plate (2).

Images