A kind of field bridge lifting device box jacking tool

Abstract

The utility model relates to a kind of yard bridge spreader box jacking tool, including several character type supports and jacking bolt, several character type supports middle part has a opening upwards accommodating groove, several character type supports are set below spreader box jacking, and each installation is magnet in the two sides of accommodating groove on several character type supports, and magnet is adsorbed on the bottom surface of spreader box jacking;Several character type supports middle part are installed with the nut matched with jacking bolt, jacking bolt is set below box jacking rod, and is connected in nut by screw thread, jacking bolt central axis is parallel with box jacking rod central axis, by rotating jacking bolt, box jacking rod is pushed to move upwards;The jacking tool of the utility model is when using, only need to place tool in the jacking position below spreader box jacking, using magnet adsorption fixed on the bottom surface of spreader box jacking, then by rotating jacking bolt, it can quickly push box jacking rod to move upwards, it is simple to operate, only one person can be completed, and work efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment testing technology, and in particular to a lifting device for a field crane lifting box. Background Technology

[0002] During the functional debugging and testing of the lifting device, it is often necessary to lift the lifting device into its housing to test the opening, closing, and interlocking protection functions. The standard operation requires three workers working together: two use long planks or iron bars to lift the lifting device into its housing, while the third person inserts bolts to hold the device in place and maintain the limit signal. This process requires excellent teamwork among the three workers; otherwise, there is a safety hazard of fingers being pinched. Furthermore, the process is cumbersome and inefficient due to the multiple steps involved.

[0003] Therefore, this utility model proposes a hoisting tool for lifting caissons on a field bridge to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a lifting fixture for a field bridge spreader, which enables rapid and safe lifting of the spreader's support rod, reducing manual labor and improving work efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a lifting fixture for a crane lifting caisson, used for lifting the caisson lifting rod, the caisson lifting rod being set inside the caisson lifting caisson, a first through hole being opened at the bottom of the caisson lifting caisson, the bottom of the caisson lifting rod being movably inserted into the first through hole, the innovation of which is: the lifting fixture includes The Z-shaped bracket has an upward-facing receiving groove in the middle. The Z-shaped bracket is set below the lifting device box. A magnet is installed on each side of the receiving groove on the Z-shaped bracket, and the magnets are attracted to the bottom surface of the lifting device box. The lifting bolt has a nut that matches the lifting bolt installed in the middle of the Z-shaped bracket. The lifting bolt is located below the support rod and is threaded into the nut. The central axis of the lifting bolt is parallel to the central axis of the support rod. By rotating the lifting bolt, the support rod is pushed upward.

[0006] Furthermore, the magnet includes a magnet disk, a pin, and a rotating ring. The magnet disk is positioned above the U-shaped bracket, and the central axis of the magnet disk is parallel to the central axis of the lifting bolt. The U-shaped bracket has a limiting groove for the pin to enter or be removed horizontally. The pin is positioned in the limiting groove, and the top end of the pin is fixedly connected to the magnet disk. The pin and the magnet disk are coaxially arranged. The rotating ring is positioned below the pin and is rotatably fitted onto the bottom of the pin through a limiting block. The central axis of the rotating ring is perpendicular to the central axis of the pin.

[0007] Furthermore, the limiting block and the rotating ring are integrally formed. The width of the limiting block is smaller than the width of the limiting groove, and the length of the limiting block is larger than the width of the limiting groove. The axial height of the rotating ring is smaller than the width of the limiting block. A second through hole for the pin to pass through is opened in the middle of the limiting block. The bottom of the pin is rotatably inserted into the second through hole. The bottom end of the pin has an enlarged end to prevent the pin from leaving the second through hole.

[0008] Furthermore, the nut is installed in the receiving groove of the Z-shaped bracket by a positioning plate. The two side walls of the receiving groove have positioning slots for the positioning plate to be inserted. The positioning plate is movably inserted in the positioning slot and is perpendicular to the central axis of the lifting bolt. The nut is fixedly connected to the positioning plate.

[0009] Furthermore, the positioning groove has several sections, and they are evenly distributed on the sidewall of the receiving groove in a direction parallel to the central axis of the lifting bolt.

[0010] Furthermore, one side of the positioning plate extends out of the receiving groove to form an extension plate, and a groove is opened on the extension plate, and a nut is fixedly connected in the groove.

[0011] Furthermore, a lifting plate is provided at the top of the lifting bolt, and the lifting plate is perpendicular to the central axis of the lifting bolt.

[0012] Furthermore, the bottom surface of the central part of the zigzag bracket has a triangular reinforcing protrusion.

[0013] The advantages of this utility model are: (1) When using the lifting fixture of this utility model, you only need to place the fixture at the lifting position below the lifting box, use magnets to attach it to the bottom surface of the lifting box, and then rotate the lifting bolts to quickly push the lifting box rod upward. The operation is simple and only one person is needed to complete it, and the work efficiency is high.

[0014] (2) The zigzag bracket of this utility model has a limiting groove for the horizontal entry or removal of the pin of the magnet, which makes it convenient to remove and replace the magnet.

[0015] (3) By setting a limiting block at the top of the rotating ring and limiting the size of the limiting block, the positional relationship between the limiting block and the limiting groove can be adjusted by rotating the rotating ring, thereby realizing the locking and unlocking of the Z-shaped bracket and the magnet.

[0016] (4) The positioning plate of this utility model for installing nuts is movably inserted into the positioning groove, which facilitates the disassembly and replacement of nuts.

[0017] (5) By setting several positioning grooves, the lifting distance adjustment range of the lifting bolt can be increased.

[0018] (6) The positioning plate of this utility model extends to the outside of the receiving groove of the Z-shaped bracket to form an extension plate. The nut is installed on the extension plate, and the lifting bolt installed in the nut is also located on the outside of the Z-shaped bracket, which makes it convenient for the operator to rotate the lifting bolt and reduces the size requirements of the Z-shaped bracket.

[0019] (7) The lifting bolt of this utility model is provided with a lifting plate at the top to increase the contact area with the support rod, thereby making the support rod more uniformly stressed and improving the stability of the lifting and moving of the support rod.

[0020] (8) The bottom surface of the middle part of the Z-shaped bracket of this utility model has a triangular reinforcing protrusion, which can not only effectively improve the structural strength of the Z-shaped bracket and prevent deformation, but also has a simple structure and is easy to process. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the structure of the lifting device for the gantry crane of this utility model. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0024] Example This embodiment provides a field bridge lifting device for caisson placement and jacking, such as... Figure 1 As shown, the lifting frame 3 is used to lift the lifting frame 2. The lifting frame 3 is set inside the lifting frame 2. The bottom of the lifting frame 2 has a first through hole, and the bottom of the lifting frame 3 is movably inserted into the first through hole.

[0025] The lifting fixture 1 includes a Z-shaped bracket 11 and lifting bolts 13.

[0026] The Z-shaped bracket 11 has an upward-facing receiving groove 112 in the middle. The Z-shaped bracket 11 is located below the lifting device box 2. A magnet 12 is installed on each side of the receiving groove 112 on the Z-shaped bracket 11. The magnets 12 are attracted to the bottom surface of the lifting device box 2.

[0027] In this embodiment, the magnet 12 includes a magnet disk 125, a pin 123, and a rotating ring 121. The magnet disk 125 is positioned above the U-shaped bracket 11, and its central axis is parallel to the central axis of the lifting bolt 15. To facilitate the removal and replacement of the magnet, the U-shaped bracket 11 has a limiting groove 111 for the pin 123 to enter or be removed horizontally. The pin 123 is positioned within the limiting groove 111, and its top end is fixedly connected to the magnet disk 125. The pin 123 and the magnet disk 125 are coaxially arranged. The rotating ring 121 is positioned below the pin 123 and is rotatably fitted onto the bottom of the pin 123 via a limiting block 124. The central axis of the rotating ring 121 is perpendicular to the central axis of the pin 123.

[0028] In this embodiment, the limiting block 124 and the rotating ring 121 are integrally formed. The width of the limiting block 124 is smaller than the width of the limiting groove 111, and the length of the limiting block 124 is larger than the width of the limiting groove 111. The axial height of the rotating ring is smaller than the width of the limiting block. A second through hole is opened in the middle of the limiting block 124 for the pin 123 to pass through. The bottom of the pin 123 is rotatably inserted into the second through hole. The bottom end of the pin 123 has an enlarged end 122 to prevent the pin 123 from leaving the second through hole. By rotating the rotating ring 121, the positional relationship between the limiting block 124 and the limiting groove 111 is adjusted, thereby realizing the locking and unlocking of the U-shaped bracket 11 and the magnet 12. During tooling installation, the magnet 12 can be first attached to the designated position on the lifting box 2, and then the U-shaped bracket 11 can be pushed to move from bottom to top, so that the rotating ring 121 and the limiting block 124 pass through the limiting groove 111 in sequence. Rotating the rotating ring 121 makes the length direction of the limiting block 124 parallel to the width direction of the limiting groove 111, thereby locking the U-shaped bracket 11 and the magnet 12. During tooling disassembly, the rotating ring 121 can be rotated first to make the width direction of the limiting block 124 parallel to the width direction of the limiting groove 111, thereby unlocking the U-shaped bracket 11 and the magnet 12. After removing the U-shaped bracket 11, the magnet 12 can be pulled off, making the operation more flexible.

[0029] A nut 14 matching the lifting bolt 13 is installed in the middle of the Z-shaped bracket 11. The lifting bolt 13 is located below the support rod 3 and is threaded into the nut 14. The central axis of the lifting bolt 13 is parallel to the central axis of the support rod 3. By rotating the lifting bolt 13, the support rod 3 is pushed upward.

[0030] In this embodiment, the nut 14 is installed in the receiving groove 112 of the U-shaped bracket 11 via a positioning plate 15. Positioning grooves 113 for the positioning plate 15 to be inserted are provided on the two side walls of the receiving groove 112. To increase the adjustment range of the lifting distance of the jacking bolt, each side wall of the receiving groove 112 has three positioning grooves, and the three positioning grooves on the same side are evenly distributed on the side wall of the receiving groove 112 in a direction parallel to the central axis of the jacking bolt 13. The positioning plate 15 is movably inserted into the positioning groove 113 and is perpendicular to the central axis of the jacking bolt 13. One side of the positioning plate 15 extends out of the receiving groove to form an extension plate. A groove is opened on the extension plate, and the nut 14 is fixedly connected in the groove. The jacking bolt 13 installed in the nut 14 is also located on the outside of the Z-shaped bracket 11, which facilitates the operator to rotate the jacking bolt 13 and reduces the size requirements of the Z-shaped bracket 11.

[0031] In this embodiment, to ensure more even force distribution on the support rod and improve the stability of its lifting movement, a lifting plate 131 is provided at the top of the lifting bolt 13, and the lifting plate 131 is perpendicular to the central axis of the lifting bolt 13. A triangular reinforcing protrusion 114 is located on the bottom surface of the middle part of the Z-shaped bracket 11. This design not only effectively improves the structural strength of the Z-shaped bracket and prevents deformation, but also has a simple structure and is easy to manufacture.

[0032] When using the lifting fixture, simply place it at the lifting position below the lifting box 2, and use the magnet 12 to attach it to the bottom surface of the lifting box. Then, by rotating the lifting bolt 13, the lifting box rod 3 can be quickly pushed upward. The operation is simple and can be completed by one person, resulting in high work efficiency.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A lifting fixture for a crane lifting caisson, used for lifting the caisson's lifting rod, the lifting rod being disposed inside the lifting caisson, a first through hole being opened at the bottom of the lifting caisson, the bottom of the lifting rod being movably inserted into the first through hole, characterized in that: The lifting fixture includes The Z-shaped bracket has an upward-facing receiving groove in the middle. The Z-shaped bracket is set below the lifting device box. A magnet is installed on each side of the receiving groove on the Z-shaped bracket, and the magnets are attracted to the bottom surface of the lifting device box. The lifting bolt has a nut that matches the lifting bolt installed in the middle of the Z-shaped bracket. The lifting bolt is located below the support rod and is threaded into the nut. The central axis of the lifting bolt is parallel to the central axis of the support rod. By rotating the lifting bolt, the support rod is pushed upward.

2. The hoisting and lifting fixture for the yard crane according to claim 1, characterized in that: The magnet includes a magnet disk, a pin, and a rotating ring. The magnet disk is positioned above the U-shaped bracket, with its central axis parallel to the central axis of the lifting bolt. The U-shaped bracket has a limiting groove for the pin to enter or be removed horizontally. The pin is positioned within the limiting groove, with its top end fixedly connected to the magnet disk. The pin and the magnet disk are coaxially aligned. The rotating ring is positioned below the pin and is rotatably fitted onto the bottom of the pin via a limiting block. The central axis of the rotating ring is perpendicular to the central axis of the pin.

3. The hoisting and lifting fixture for the yard crane according to claim 2, characterized in that: The limiting block and the rotating ring are integrally formed. The width of the limiting block is smaller than the width of the limiting groove, and the length of the limiting block is larger than the width of the limiting groove. The axial height of the rotating ring is smaller than the width of the limiting block. A second through hole is opened in the middle of the limiting block for the pin to pass through. The bottom of the pin is rotatably inserted into the second through hole. The bottom end of the pin has an enlarged end to prevent the pin from leaving the second through hole.

4. The hoisting and lifting fixture for the yard crane according to claim 1, characterized in that: The nut is installed in the receiving groove of the Z-shaped bracket by a positioning plate. The two side walls of the receiving groove have positioning slots for the positioning plate to be inserted. The positioning plate is movably inserted in the positioning slot and is perpendicular to the central axis of the lifting bolt. The nut is fixedly connected to the positioning plate.

5. The hoisting and lifting fixture for the yard crane according to claim 4, characterized in that: The positioning grooves are numerous and are evenly distributed on the sidewalls of the receiving grooves in a direction parallel to the central axis of the lifting bolt.

6. The hoisting and lifting fixture for the yard crane according to claim 4, characterized in that: The positioning plate extends to the outside of the receiving groove to form an extension plate. A groove is opened on the extension plate, and a nut is fixedly connected in the groove.

7. The hoisting and lifting fixture for the yard crane according to claim 1, characterized in that: The top of the lifting bolt is provided with a lifting plate, which is perpendicular to the central axis of the lifting bolt.

8. The hoisting and lifting fixture for the yard crane according to claim 1, characterized in that: The bottom surface of the Z-shaped bracket has a triangular reinforcing protrusion in the middle.

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