Cross-core jack convenient to adjust and move

Abstract

The center hole jack convenient to adjust and move comprises a jack body, the two ends of the jack body are a tensioning end and a jacking end respectively, connecting blocks are symmetrically and fixedly connected to the two sides of the jack body, limiting grooves are formed in the lower portions of the connecting blocks, and first threaded rods are rotationally connected into the limiting grooves; a supporting column is arranged below the first threaded rod, a first threaded hole is formed in the supporting column, the first threaded rod is in threaded fit with the first threaded rod, a rotating block is fixedly connected to the position, between the connecting block and the supporting column, of the first threaded rod, a mounting plate is fixedly connected to the lower portion of the supporting column, and four cavities are symmetrically formed in the mounting plate; a second threaded hole is formed in the upper portion of the cavity, a second threaded rod is in threaded connection with the interior of the second threaded hole, the lower end of the second threaded rod is fixedly connected with a walking wheel, and the walking wheel is located in the cavity. The center hole jack is reasonable in structure, and the problem that a center hole jack is inconvenient to move is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of jacks, in particular to a through-type jack which is easy to adjust and move. Background Art

[0002] A through-type jack is a type of jack primarily used for tensioning anchor groups. This jack is simple to operate, offers reliable performance, and minimizes stranded wire. Jacks are primarily used in conjunction with prestressed anchors and tensioning equipment in bridge construction and other projects. During operation, through-type jacks tension and compress the strands at both ends. The front end of the jack stretches the strands, and after the front end stretches, the rear end moves outward, compressing the strands outside the jack.

[0003] The general through-type jack is a whole body, which is heavy and laborious to carry manually. The cost of using a crane for short-distance transportation is relatively high. Moreover, the whole jack is not conducive to adjustment during installation. A solution is proposed below to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a through-type jack which is easy to adjust and move, and to solve the problems raised in the above background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] The lifting mechanism is a kind of lifting mechanism that lifts up and down of described lifting mechanism, and the lifting mechanism of lifting up and down of lifting up and down of lifting up and down of lifting up and down of lifting up and down of lifting up and down of lifting up and down of lifting up and down, and the lifting mechanism of lifting up and down of lifting up and down of lifting up and down of lifting up and down

[0007] By adopting the above technical solution, the tensioning end and the pressing end at both ends of the jack body can tension or press the steel strand. The lower part of the jack body is connected to the mounting plate by using the connecting block, the first threaded rod and the support column. When in use, the first threaded rod and the support column are threaded together to rotate the first threaded rod to adjust the installation height of the jack body. At the same time, the four first threaded rods can be adjusted separately so that the two ends of the jack body are on the same horizontal line, which is convenient for the operation of the jack. A second threaded hole is provided on the mounting plate below the support column, and a cavity is provided below the second threaded hole. The second threaded rod is threadedly connected to the second threaded hole, and a walking wheel is fixedly connected below the second threaded rod. When the jack needs to be moved, the second threaded rod is rotated and the threaded rod is used to drive the walking wheel downward and lift the mounting plate so that the jack can be moved. When the jack is working, the second threaded rod is rotated in the opposite direction to retract the walking wheel into the cavity so that the mounting plate contacts the ground to fix the jack. The walking wheel can be retracted into the cavity or the mounting plate can be lifted as needed, which provides great convenience for the movement of the jack.

[0008] Preferably, a bubble level is fixedly connected above the connecting block.

[0009] By adopting the above technical solution, when adjusting the installation height and levelness of the jack body, the levelness of the jack body can be judged by observing the bubbles in the level bubble meter.

[0010] Preferably, a lifting ring is fixedly connected to the top of the jack body.

[0011] By adopting the above technical solution, when the jack is transported over a long distance, the jack can be lifted and transported using the lifting ring.

[0012] Preferably, a socket is provided on the rotating block.

[0013] By adopting the above technical solution, a tool such as a support rod is inserted into the socket to drive the rotating block, so that it is more labor-saving when rotating the rotating block.

[0014] Preferably, a handwheel is fixedly connected to the upper end of the second threaded rod.

[0015] With the above technical solution, the handwheel makes it convenient for the staff to rotate the second threaded rod to adjust the position of the traveling wheel.

[0016] Preferably, pull rings are fixedly connected to both ends of the mounting plate.

[0017] By adopting the above technical solution, when the jack is transported over a short distance, a rope or the like can be used to pull the jack through the pull ring, making the movement of the jack more convenient and labor-saving.

[0018] Beneficial effects: 1. The jack body is connected to the mounting plate through the connecting block, the first threaded rod and the support column. The installation height and levelness of the jack can be adjusted by using the threaded fit of the first threaded rod and the support column.

[0019] 2. A level bubble meter is installed on the connecting block, which can help staff judge the level of the jack more quickly and directly by observing the bubble meter.

[0020] 3. A cavity is provided on the mounting plate, and a travel wheel is provided in the cavity. The second threaded rod can be used to drive the travel wheel to move in the vertical direction, so that the travel wheel lifts the mounting plate or retracts into the cavity, which is convenient for moving or installing the jack. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of an embodiment;

[0022] Figure 2 This is a schematic diagram showing the structure of the first threaded rod in an embodiment;

[0023] Figure 3 This is a schematic diagram showing the structure of the second threaded rod in an embodiment;

[0024] Figure 4 For example, for demonstration Figure 1 A is an enlarged schematic diagram.

[0025] Figure markings: 1. Jack body; 2. Tensioning end; 3. Pressing end; 4. Connecting block; 5. Limiting groove; 6. First threaded rod; 7. Support column; 8. First threaded hole; 9. Mounting plate; 10. Cavity; 11. Second threaded hole; 12. Second threaded rod; 13. Travel wheel; 14. Level bubble gauge; 15. Lifting ring; 16. Socket; 17. Handwheel; 18. Pull ring; 19. Rotating block. DETAILED DESCRIPTION

[0026] The following description is merely a preferred embodiment of the present invention, and the scope of protection is not limited to this embodiment. All technical solutions based on the principles of the present invention should be included in the scope of protection of the present invention. It should also be noted that improvements and modifications that do not depart from the principles of the present invention by ordinary skill in the art should also be considered within the scope of protection of the present invention.

[0027] See Figure 1 As shown, a through-type jack that is easy to adjust and move includes a jack body 1. The two ends of the jack body 1 are respectively a tensioning end 2 and a pressing end 3, which are used to tension or press the steel strand.

[0028] See Figure 1 、 Figure 2 and Figure 4 As shown, the jack body 1 is symmetrically fixedly connected with a connecting block 4 on both sides, and a limiting groove 5 is provided under the connecting block 4. A first threaded rod 6 is rotatably connected in the limiting groove 5, and the first threaded rod 6 can rotate in the limiting groove 5. A support column 7 is provided under the first threaded rod 6, and a mounting plate 9 is fixedly connected under the support column 7. The jack body 1 is installed on the mounting plate 9 through the connecting block 4, the first threaded rod 6 and the support column 7. A first threaded hole 8 is provided in the support column 7, and the first threaded rod 6 and the first threaded rod 6 are threadedly matched. When the jack is installed, the first threaded rod 6 can be rotated to adjust the installation height of the jack. The first threaded rod 6 is fixedly connected to a rotating block 19 at a position between the connecting block 4 and the support column 7. A socket 16 is provided on the rotating block 19. By inserting a tool such as a support rod into the socket 16, the rotating block 19 can be driven more effortlessly. At the same time, a level bubble meter 14 is fixedly connected above the connecting block 4. When the first threaded rod 6 is rotated, the level bubble meter 14 can be used to ensure the levelness of the jack.

[0029] See Figure 1 and Figure 3 As shown, four cavities 10 are symmetrically provided on the mounting plate 9, and a second threaded hole 11 is provided above the cavity 10. A second threaded rod 12 is threadedly connected to the second threaded hole 11, and a hand wheel 17 is fixedly connected to the upper end of the second threaded rod 12. The hand wheel 17 facilitates the staff to rotate the second threaded rod 12. The lower end of the second threaded rod 12 is fixedly connected to a walking wheel 13, and the walking wheel 13 is located in the cavity 10. When moving the jack, the second threaded rod 12 is rotated to drive the walking wheel 13 to move downward, and the mounting plate 9 is lifted up, so that the jack can be moved. Similarly, when installing the jack, the second threaded rod 12 is rotated in the opposite direction to retract the walking wheel 13 into the cavity 10, so that the mounting plate 9 is in contact with the ground, which plays a fixing role.

[0030] See Figure 1 As shown, a lifting ring 15 is fixedly connected to the top of the jack body 1 to facilitate long-distance transportation, and pull rings 18 are fixedly connected to both ends of the mounting plate 9 to serve as pulling points for short-distance movement.

Claims

1. A through-type jack that is easy to adjust and move, comprising a jack body (1), characterized in that: The two ends of the jack body (1) are respectively a tensioning end (2) and a pressing end (3); the two sides of the jack body (1) are symmetrically fixedly connected with a connecting block (4); a limiting groove (5) is provided below the connecting block (4); a first threaded rod (6) is rotatably connected in the limiting groove (5); a support column (7) is provided below the first threaded rod (6); a first threaded hole (8) is provided in the support column (7); the first threaded rod (6) and the first threaded rod (6) are threadedly matched; the first threaded rod (6) ) A rotating block (19) is fixedly connected to a position between the connecting block (4) and the supporting column (7), a mounting plate (9) is fixedly connected below the supporting column (7), four cavities (10) are symmetrically provided on the mounting plate (9), a second threaded hole (11) is provided above the cavity (10), a second threaded rod (12) is threadedly connected to the inner thread of the second threaded hole (11), a travel wheel (13) is fixedly connected to the lower end of the second threaded rod (12), and the travel wheel (13) is located in the cavity (10).

2. A through-type jack that is easy to adjust and move according to claim 1, characterized in that: A horizontal bubble meter (14) is fixedly connected above the connecting block (4).

3. The through-type jack that is easy to adjust and move according to claim 1, characterized in that: A lifting ring (15) is fixedly connected to the top of the jack body (1).

4. The through-type jack that is easy to adjust and move according to claim 1, characterized in that: The rotating block (19) is provided with an inserting hole (16).

5. The through-type jack that is easy to adjust and move according to claim 1, characterized in that: The upper end of the second threaded rod (12) is fixedly connected to a hand wheel (17).

6. The through-type jack that is easy to adjust and move according to claim 1, characterized in that: Pull rings (18) are fixedly connected to both ends of the mounting plate (9).

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