Bridge construction template fixed pull rod

Abstract

A kind of road and bridge construction formwork fixed pull rod, including fixed sleeve, pull rod, movable sleeve, fixed plate, sleeve, buckle plate, lock sleeve, the fixed plate is connected with rubber pad, the inside of fixed plate has movable sleeve, the outside of fixed plate has fastening support, fastening support inside is connected with sleeve, sleeve has steering wheel, fastening support outside is connected with buckle plate, buckle plate has limit stop plate, fastening support has stop plate perforation, sleeve has limit stop slot, limit stop slot, stop plate perforation and limit stop plate are adapted, limit stop plate passes through stop plate perforation, limit stop plate is connected with limit stop slot, limit stop slot has multiple lock slots, the both sides of buckle plate have connecting plate, No. two screw rod passes through connecting plate, No. two screw rod is connected with No. two nut by thread at both ends, buckle plate is divided into No. one buckle plate, No. two buckle plate, No. one buckle plate is connected with No. two buckle plate.

Description

Technical Field

[0001] This utility model relates to the field of road and bridge construction, and in particular to a tie rod for fixing road and bridge construction templates. Background Technology

[0002] An existing patent (publication number: CN215714697U) proposes a tie rod for fixing formwork in road and bridge construction, including a main connecting sleeve; a set of side sliding sleeves are slidably connected to the inner right end of the main connecting sleeve; a set of operating parts are rotatably connected to the left end of the main connecting sleeve; a set of left-side fixing baffles are slidably connected to the left side of the main connecting sleeve; and a set of right-side fixing baffles are connected to the right side of the side sliding sleeves, including the insertion of left and right blocks into the connecting round holes on both sides. However, in this device, "the fixing nut is threadedly connected to the left side of the main connecting sleeve and the right side of the side sliding sleeve," and it is only fastened by the thread. When the thread comes loose, the position of the fixing baffle will shift, thereby affecting the formwork fixing effect, which has drawbacks. Summary of the Invention

[0003] This utility model addresses the aforementioned shortcomings of existing technologies by providing a road and bridge construction formwork fixing tie rod that increases formwork positioning by firmly pressing the outside of the formwork, preventing formwork displacement during concrete pouring, ensuring the effectiveness of road and bridge construction, while also being easy to assemble, disassemble, and adjust. It can flexibly adapt to road and bridge formwork of different thicknesses and spacings, and by adding a locking structure to prevent thread loosening due to accidental contact or operational vibration, thus ensuring structural stability.

[0004] The objective of this utility model is achieved through the following technical solution: A type of tie rod for fixing formwork in road and bridge construction includes a fixed sleeve, a tie rod, a movable sleeve, a fixed plate, a rotating sleeve, a buckle plate, and a locking sleeve. The fixed plate is connected to a rubber pad. The movable sleeve is located inside the fixed plate, and a fastening support is located outside the fixed plate. The rotating sleeve is connected inside the fastening support and has a rotating wheel. The buckle plate is connected outside the fastening support and has a limiting plate. The fastening support has a plate through hole, and the rotating sleeve has a limiting groove. The limiting groove and the plate through hole are adapted to the limiting plate. The limiting plate passes through the plate through hole and is connected to the limiting groove, which has multiple locking grooves. The buckle plate has connecting plates on both sides. A second screw passes through the connecting plates, and the two ends of the second screw are connected to a second nut via threads. The buckle plate is divided into a first buckle plate and a second buckle plate, with the first buckle plate connected to the second buckle plate.

[0005] The first buckle plate of this utility model has an external mounting sleeve, which is connected to the outside of the bearing. A threaded rod is connected inside the bearing. The outer end of the threaded rod has a knob that fits into the mounting sleeve. The inner end of the threaded rod is connected to a locking sleeve through a thread. The locking sleeve is connected to a limiting plate. The locking sleeve is adapted to the locking groove and is connected to the locking groove.

[0006] The fixed sleeve of this utility model has slides on both sides, the slides are adapted to the movable sleeve, the movable sleeve is connected to the slides, the movable sleeve slides on the slides, the movable sleeve has slots on both sides, and the fixed sleeve has clips on both sides, the clips are adapted to the slots, and the clips are connected to the slots. Beneficial effects

[0007] The threaded positioning between the rotating sleeve and the tie rod, in conjunction with the limiting and guiding functions of the locking strip and the locking groove, allows the fixed plate and the movable sleeve to be linearly displaced along the slide direction by rotating the rotating wheel. Furthermore, the threaded transmission between the rotating sleeve and the tie rod adjusts the spacing, flexibly adapting to road and bridge formwork of different thicknesses and spacings. Simultaneously, it generates a clamping force on the outside of the formwork, increasing its positioning accuracy, preventing displacement during concrete pouring, and ensuring the effectiveness of road and bridge construction. The anti-slip and flexible rubber pads increase the fit and frictional resistance between the pads and the formwork contact surface, buffering vibrations and impacts during construction and enhancing the stability of the fastening force.

[0008] The two side fasteners of this utility model are fastened to the outside of the fastening support sleeve by opposite fastening plates. The limiting plate inside increases the connection fulcrum between the fastening support sleeve and the rotating sleeve, and provides a force support fulcrum for the synchronous advancement between the rotating sleeve and the fixed plate, which facilitates quick assembly and disassembly between the fixed plate and the tie rod.

[0009] This utility model features a rotating sleeve with multiple sets of locking grooves evenly distributed along its axial direction. These grooves cooperate with the locking sleeve to increase the positioning fulcrum of the fastening support for the rotating sleeve. When the locking sleeve is moved into the locking groove by rotating the knob, the rotating sleeve is passively locked and cannot rotate, preventing it from being loosened due to accidental contact or construction vibration. This ensures stable external pressure on the template. When the locking sleeve is moved completely away from the locking groove by rotating the knob in the opposite direction, the positioning fulcrum of the fastening support for the rotating sleeve disappears. At this point, the rotating sleeve and fixing plate can be flexibly moved by rotating the wheel according to the actual construction requirements such as the thickness and spacing of the construction template. The operation is convenient and does not require additional tools, thus improving the fixing efficiency of road and bridge construction templates.

[0010] This utility model increases the positioning of the template by firmly pressing the outside of the template, preventing the template from shifting during concrete pouring, thus ensuring the construction effect of the road and bridge. At the same time, it is easy to disassemble and adjust, and can flexibly adapt to road and bridge templates of different thicknesses and spacings. In addition, a locking structure is added to prevent the threads from loosening due to accidental contact or vibration during operation, and the structure is stable. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a tie rod structure for fixing formwork in road and bridge construction, as described in this utility model.

[0012] Figure 2 This is an exploded view of a tie rod structure for fixing formwork in road and bridge construction, as described in this utility model.

[0013] Figure 3 This is a cross-sectional view of a tie rod structure for fixing formwork in road and bridge construction, as described in this utility model.

[0014] Figure 4 This is a cross-sectional view of the buckle plate, fastening support sleeve, and rotating sleeve connection structure described in this utility model.

[0015] Figure 5 This is a cross-sectional view of the fixed sleeve, movable sleeve, and tie rod connection structure described in this utility model.

[0016] Figure 6 This is a schematic diagram of the rotating sleeve structure described in this utility model.

[0017] Figure 7 This is a schematic diagram of the fixing plate structure described in this utility model.

[0018] Figure 8 The present utility model Figure 3 Enlarged view of a local structure. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments: Example 1: A type of tie rod for fixing formwork in road and bridge construction includes a fixed sleeve 01, a tie rod 02, a movable sleeve 09, a fixed plate 12, a rotating sleeve 15, a buckle plate 17, and a locking sleeve 25. The fixed plate 12 is connected to a rubber pad 13. The movable sleeve 09 is located on the inner side of the fixed plate 12, and a fastening support 14 is located on the outer side of the fixed plate 12. The rotating sleeve 15 is connected inside the fastening support 14 and has a rotating wheel 16. The buckle plate 17 is connected outside the fastening support 14 and has a limiting plate 18. The fastening support 14 has a plate through hole 20, and the rotating sleeve 15 has a limiting groove 19. The limiting groove 19 and the plate through hole 20 are adapted to the limiting plate 18, and the limiting plate 18 passes through the plate through hole. 20. The limiting plate 18 is connected to the limiting slot 19. The limiting slot 19 has multiple locking slots 24. The buckle plate 17 has connecting plates 21 on both sides. The second screw 22 passes through the connecting plate 21. The two ends of the second screw 22 are connected to the second nut 23 by threads. The buckle plate 17 is divided into a first buckle plate 171 and a second buckle plate 172. The first buckle plate 171 is connected to the second buckle plate 172. The two buckle plates 17 are fastened to the outside of the fastening support sleeve 14. The limiting plate 18 inside increases the connection fulcrum between the fastening support sleeve 14 and the rotating sleeve 15, and provides a force fulcrum for the synchronous advancement between the rotating sleeve 15 and the fixed plate 12, which facilitates the quick assembly and disassembly between the fixed plate 12 and the pull rod 02.

[0020] Example 2: The first buckle plate 171 of this utility model has an external mounting sleeve 28, which is connected to the outside of the bearing 27. The bearing 27 is internally connected to a threaded rod 29. The outer end of the threaded rod 29 has a knob 26, which fits into the mounting sleeve 28. The inner end of the threaded rod 29 is connected to a locking sleeve 25 by a thread. The locking sleeve 25 is connected to a limiting plate 18. The locking sleeve 25 is adapted to the locking groove 24 and is connected to the locking groove 24. Multiple sets of locking grooves 24 are evenly distributed axially on the rotating sleeve 15, which cooperate with the locking sleeve 25 to increase the positioning fulcrum of the fastening support 14 on the rotating sleeve 15. When the locking sleeve 25 is driven by rotating the knob 26, the locking sleeve 25 is activated. When the sleeve 25 is displaced into the locking groove 24, it is passively locked and cannot rotate, preventing it from being loosened by accidental contact or construction vibration, thus ensuring its stable pressing against the outside of the template. When the locking sleeve 25 is displaced to the point where it is completely separated from the locking groove 24 by rotating the knob 26 in the opposite direction, the positioning fulcrum of the fastening support 14 on the sleeve 15 disappears. At this time, the sleeve 15 and the fixing plate 12 can be flexibly moved by rotating the wheel 16 according to the actual construction needs such as the thickness and spacing of the construction template. The operation is convenient and does not require additional tools, thus improving the fixing efficiency of road and bridge construction templates.

[0021] Example 3: The fixed sleeve 01 of this utility model has slides 08 on both sides, which are adapted to the movable sleeve 09. The movable sleeve 09 is connected to the slides 08 and slides on the slides 08. The movable sleeve 09 has slots 11 on both sides, and the fixed sleeve 01 has retaining strips 10 on both sides. The retaining strips 10 are adapted to the slots 11 and are connected to the slots 11. The threaded positioning between the rotating sleeve 15 and the pull rod 02 cooperates with the limiting guide of the retaining strips 10 and the slots 11, so that the rotation of the rotating wheel 16 can be used to... The fixed plate 12 and the movable sleeve 09 are moved linearly along the slide rail 08. The spacing is adjusted by the threaded transmission between the rotating sleeve 15 and the tie rod 02. This allows for flexible adaptation to road and bridge formwork of different thicknesses and spacings. At the same time, it generates a clamping force on the outside of the formwork, increasing the formwork's positioning and preventing it from shifting during concrete pouring, thus ensuring the road and bridge construction effect. The anti-slip and flexible properties of the rubber pad 13 increase the fit and frictional resistance between the pad and the formwork, buffering the vibration and impact during construction and strengthening the stability of the fastening force.

[0022] Example 4: The movable sleeve 09 of this utility model has a through hole 30, which is slightly larger than the pull rod 02. The fixed sleeve 01 has a pull rod hole 03, which is adapted to the pull rod 02. The pull rod 02 passes through the rotating sleeve 15, the movable sleeve 09, and the pull rod hole 03 in sequence. The pull rod 02 is connected to the rotating sleeve 15 by a thread.

[0023] Example 5: The tie rod 02 of this utility model has internal through holes 07 on both sides, and the fixing sleeve 01 has external through holes 06 on both sides. The external through holes 06 and internal through holes 07 are adapted to the first screw 04. The first screw 04 passes through the external through holes 06 and internal through holes 07 in sequence. The two ends of the first screw 04 are connected to the first nut 05 by threads. This device increases the positioning of the template by firmly pressing it on the outside of the template, preventing the template from shifting during concrete pouring, ensuring the construction effect of the road and bridge, while also being easy to disassemble and adjust. It can flexibly adapt to road and bridge templates of different thicknesses and spacings. In addition, by adding a locking structure, it prevents the threads from loosening due to accidental contact or vibration during operation, and the structure is stable.

[0024] Example 6: Installation steps: First, assemble the structure of the fixing plate 12. First, embed the threaded rod 29 into the bearing 27 until the lower surface of the knob 26 is in contact with the upper surface of the mounting sleeve 28. Then, place the locking sleeve 25 into the limiting plate 18 and fit it over the threaded rod 29. The locking sleeve 25 is connected to the threaded rod 29 by thread. Then, place the rotating sleeve 15 into the fastening sleeve 14, and align the limiting slot 19 with the through hole 20 of the plate. Finally, place the buckle plate 17 outside the fastening sleeve 14, and buckle plate 171 and buckle plate 172 are fastened together and fixed by screw 22 and nut 23. 8. Insert the plate through the through hole 20 into the limiting slot 19, and the locking sleeve 25 into the locking slot 24. After completing the assembly of the fixed plate 12 structure, place the movable sleeve 09 into the slide rail 08, and insert the locking strip 10 into the slot 11. The through hole 30 and the pull rod hole 03 are axially concentric. Then, the pull rod 02 passes through the rotating sleeve 15, the through hole 30, and the pull rod hole 03 in sequence until the inner through hole 07 and the outer through hole 06 are aligned. The pull rod 02 is then positioned and connected to the rotating sleeve 15 through the thread. Finally, the first screw 04 passes through the outer through hole 06 and the inner through hole 07 in sequence, and its two ends are fixedly connected to the first nut 05 through the thread to complete the installation.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A tie rod for fixing formwork in road and bridge construction, characterized in that: The device includes a fixed sleeve (01), a pull rod (02), a movable sleeve (09), a fixed plate (12), a rotating sleeve (15), a buckle plate (17), and a locking sleeve (25). The fixed plate (12) is connected to a rubber pad (13). The movable sleeve (09) is located inside the fixed plate (12). The fastening support sleeve (14) is located outside the fixed plate (12). The rotating sleeve (15) is connected inside the fastening support sleeve (14). The rotating sleeve (15) has a rotating wheel (16). The buckle plate (17) is connected outside the fastening support sleeve (14). The buckle plate (17) has a limiting plate (18). The fastening support sleeve (14) has a clamping plate through hole (20). The rotating sleeve (15) It has a limiting slot (19), the limiting slot (19) and the card plate through hole (20) are adapted to the limiting card plate (18), the limiting card plate (18) passes through the card plate through hole (20), the limiting card plate (18) is connected to the limiting slot (19), the limiting slot (19) has multiple locking slots (24), the buckle plate (17) has connecting plates (21) on both sides, the second screw (22) passes through the connecting plate (21), the two ends of the second screw (22) are connected to the second nut (23) by threads, the buckle plate (17) is divided into a first buckle plate (171) and a second buckle plate (172), the first buckle plate (171) is connected to the second buckle plate (172).

2. A tie rod for fixing formwork in road and bridge construction according to claim 1, characterized in that: The first buckle plate (171) has an external mounting sleeve (28), which is connected to the outside of the bearing (27). The bearing (27) is connected to the inside of the threaded rod (29). The outer end of the threaded rod (29) has a knob (26), which fits into the mounting sleeve (28). The inner end of the threaded rod (29) is connected to the locking sleeve (25) by a thread. The locking sleeve (25) is connected to the limiting plate (18). The locking sleeve (25) is adapted to the locking groove (24) and is connected to the locking groove (24).

3. A tie rod for fixing formwork in road and bridge construction according to claim 2, characterized in that... The fixed sleeve (01) has slides (08) on both sides, the slides (08) are adapted to the movable sleeve (09), the movable sleeve (09) is connected to the slides (08), the movable sleeve (09) slides on the slides (08), the movable sleeve (09) has slots (11) on both sides, and the fixed sleeve (01) has clips (10) on both sides, the clips (10) are adapted to the slots (11), and the clips (10) are connected to the slots (11).

4. A tie rod for fixing formwork in road and bridge construction according to claim 3, characterized in that: The movable sleeve (09) has a through hole (30), which is slightly larger than the pull rod (02). The fixed sleeve (01) has a pull rod hole (03), which is adapted to the pull rod (02). The pull rod (02) passes through the rotating sleeve (15), the movable sleeve (09), and the pull rod hole (03) in sequence. The pull rod (02) is connected to the rotating sleeve (15) by a thread.

5. A tie rod for fixing formwork in road and bridge construction according to claim 3, characterized in that... The pull rod (02) has an inner through hole (07) on both sides, and the fixing sleeve (01) has an outer through hole (06) on both sides. The outer through hole (06) and the inner through hole (07) are adapted to the first screw (04). The first screw (04) passes through the outer through hole (06) and the inner through hole (07) in sequence. The two ends of the first screw (04) are connected to the first nut (05) by threads.

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