Adjustable box girder steel bar binding jig frame based on sliding mechanism

Abstract

The invention relates to an adjustable box girder steel bar binding jig frame based on a sliding mechanism, which comprises a bottom positioning and supporting mechanism for positioning and supporting bottom plate steel bars of a steel bar cage; the two sets of side positioning and supporting mechanisms are symmetrically located on the two sides of the bottom positioning and supporting mechanism correspondingly and used for positioning and supporting web longitudinal bars of the reinforcement cage, each side positioning and supporting mechanism comprises a vertical rod piece and an inclined rod piece, and the lengths of the vertical rod pieces and the inclined rod pieces are adjustable; the upper end of the inclined rod piece is rotationally connected with the top of the vertical rod piece, a bottom sliding block is installed at the lower end of the inclined rod piece, and an inclined rod longitudinal bar support is further arranged on the inclined rod piece. Compared with the prior art, the section shape of the concrete box girder steel bar binding jig frame can be adjusted through sliding fit between the steel channels, and it is avoided that different forms of jig frames are manufactured for different forms of box girders; and meanwhile, a bolt connecting structure convenient to disassemble and assemble also enables the jig frame to move among different production lines more conveniently.

Description

Technical Field

[0001] The invention belongs to the technical field of steel bar binding equipment and relates to an adjustable box girder steel bar binding cradle based on a sliding mechanism. Background Art

[0002] With the continuous maturity of prefabrication technology and standardization of prefabricated components in bridge engineering, more and more bridge superstructures have been produced in factories. As a closed beam component with strong integrity and high degree of standardization, box beams are very suitable for prefabrication in factories. The tire frame is a steel support used for temporary support and precise positioning of longitudinal reinforcement and stirrups during concrete beam construction. The steel cage needs to be made under the support of the tire frame and then hoisted into the formwork for concrete pouring.

[0003] Existing prefabricated box girder cradles are often fixed. When it is necessary to produce box girders of different cross-sectional sizes or different lengths, or to change the reinforcement pattern, different cradles must be replaced. At the same time, traditional cradles are often fixed on the ground, which requires occupying space and is inconvenient to move when the construction line is changed, which will waste a lot of working time and cost and affect the construction progress. Summary of the invention

[0004] The purpose of the present invention is to provide an adjustable box girder reinforcement binding cradle based on a sliding mechanism, which can achieve precise adjustment of the three-dimensional structure of the cradle through sliding between the rods to adapt to the construction requirements of different types of box girders.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] An adjustable box girder reinforcement binding cradle based on a sliding mechanism, comprising:

[0007] A bottom positioning support mechanism is used to position the bottom plate steel bars supporting the steel cage;

[0008] Two groups of side positioning support mechanisms are symmetrically located on both sides of the bottom positioning support mechanism and are used to position and support the web longitudinal reinforcement of the steel cage. The side positioning support mechanism includes vertical rods and oblique rods. The lengths of the vertical rods and the oblique rods are adjustable. The upper ends of the oblique rods are rotatably connected to the tops of the vertical rods, and the lower ends are equipped with bottom sliders that can slide back and forth on the bottom positioning support mechanism. The oblique rods are also provided with oblique rod longitudinal reinforcement brackets that can support and position the web longitudinal reinforcement.

[0009] Furthermore, the bottom positioning support mechanism includes two transverse rods arranged in parallel and at intervals, and the two transverse rods are connected by a detachable lower longitudinal rod. The transverse rod includes a transverse rod inner core located in the middle, and a transverse rod outer sleeve slidably connected to both ends of the transverse rod inner core, so that the length of the transverse rod is adjustable. A number of transverse rod longitudinal reinforcement support plates for positioning the bottom plate reinforcement of the support steel cage are also detachably arranged on the transverse rod inner core.

[0010] Furthermore, the top of the cross bar longitudinal reinforcement support piece is processed with a limiting groove matching the steel cage.

[0011] Furthermore, the lower longitudinal rod is also processed with a limiting groove matching the steel cage.

[0012] Furthermore, the vertical rod member includes a vertical rod inner core, and a vertical rod upper outer sleeve and a vertical rod lower outer sleeve respectively slidably mounted on the upper and lower ends of the vertical rod inner core, and the locking positions between the vertical rod upper outer sleeve and the vertical rod lower outer sleeve and the vertical rod inner core are independently adjustable.

[0013] Furthermore, in each set of the side positioning support mechanisms, two vertical rods and two oblique rods are respectively provided in a one-to-one correspondence, and the tops of the two vertical rods are connected by an upper longitudinal rod.

[0014] Furthermore, the oblique rod member includes an oblique rod inner core, and an oblique rod upper outer sleeve and an oblique rod lower outer sleeve respectively slidably mounted on the upper and lower ends of the oblique rod inner core, and the locking positions between the oblique rod upper outer sleeve and the oblique rod lower outer sleeve and the oblique rod inner core are independently adjustable.

[0015] Furthermore, a rotating block is rotatably installed on the top of the vertical rod, and the rotating center axis of the rotating block is perpendicular to the plane where the vertical rod and the oblique rod are located. A fine-tuning screw is also rotatably installed on the rotating block along the direction of the oblique rod, and the bottom of the fine-tuning screw is threadedly connected to the outer sleeve of the oblique rod.

[0016] Furthermore, a bottom slide plate is provided at the bottom of the oblique rod, and the bottom slider is rotatably mounted on the bottom slide plate through a hinge.

[0017] Furthermore, an oblique rod bracket slot is detachably mounted on the oblique rod, and the installation position of the oblique rod bracket slot on the oblique rod is adjustable. The oblique rod bracket slot is provided with a guide through hole for the cross bar longitudinal rib support piece to pass through.

[0018] Compared with the prior art, the present invention utilizes the relative movable adjustment and detachable properties of each rod to achieve free extension and precise positioning of vertical rods, oblique rods, transverse rods, etc., improves the disadvantages of the traditional steel bar frame structure that is welded and cannot be adjusted for different situations, and saves the manufacturing cost of various frames. At the same time, a detachable structure is adopted, and the transportation of the frame only needs to be disassembled into parts and transported separately, saving labor time and transportation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view schematic diagram of the adjustable box girder reinforcement binding frame of the present invention when a single frame is used;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the adjustable box girder reinforcement binding frame of the present invention when two frames are used;

[0021] Figure 3 for Figure 2 The front enlarged schematic diagram of part A in the middle;

[0022] Figure 4 for Figure 2 The back of the A part is enlarged;

[0023] Figure 5 for Figure 2 The frontal enlarged view of the structure at B in the middle;

[0024] Figure 6 yes Figure 2 The enlarged front view of the structure at B in the middle with the upper longitudinal rod and fastening screws removed;

[0025] Figure 7 yes Figure 2 Enlarged front view of the structure at center C.

[0026] Description of the markings in the figure:

[0027] 1-vertical rod lower outer sleeve, 2-vertical rod upper outer sleeve, 3-vertical rod inner core, 4-cross rod outer sleeve, 5-cross rod inner core, 6-oblique rod upper outer sleeve, 7-oblique rod inner core, 8-oblique rod lower outer sleeve, 9-rotating block, 10-top shaft plate, 11-fine-tuning screw, 12-bottom slider, 13-upper longitudinal rod, 14-lower longitudinal rod, 15-oblique rod bracket slot, 16-oblique rod longitudinal rib bracket, 17-cross rod longitudinal rib support piece, 18-bottom slide plate, 19-hole. DETAILED DESCRIPTION

[0028] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0029] In the following implementation manners or examples, functional components or structures without special description are conventional components or conventional structures used in the art to realize corresponding functions.

[0030] In order to adapt to different forms of box girder reinforcement binding operations, the present invention provides an adjustable box girder reinforcement binding cradle based on a sliding mechanism, the structure of which can be seen in Figures 1 to 7 As shown, including:

[0031] A bottom positioning support mechanism is used to position the bottom plate steel bars supporting the steel cage;

[0032] Two sets of side positioning support mechanisms are symmetrically located on both sides of the bottom positioning support mechanism and are used to position and support the web longitudinal reinforcement of the steel cage. The side positioning support mechanism includes vertical rods and oblique rods. The lengths of the vertical rods and the oblique rods are adjustable. The upper ends of the oblique rods are rotatably connected to the tops of the vertical rods, and the lower ends are equipped with bottom sliders 12 that can slide back and forth on the bottom positioning support mechanism. An oblique rod longitudinal reinforcement bracket 16 that can support and position the web longitudinal reinforcement is also provided on the oblique rods.

[0033] In some specific embodiments, the bottom positioning support mechanism includes two transverse rods arranged in parallel and spaced apart, and the two transverse rods are connected by a detachable lower longitudinal rod 14. The transverse rod includes a transverse rod inner core 5 located in the middle, and a transverse rod outer sleeve 4 slidably connected to both ends of the transverse rod inner core 5, so that the length of the transverse rod is adjustable, and a plurality of transverse rod longitudinal reinforcement support pieces 17 for positioning and supporting the bottom plate reinforcement of the reinforcement cage can be detachably arranged on the transverse rod inner core 5. It should be pointed out here that the arrangement spacing of the transverse rod longitudinal reinforcement support pieces 17 is adjustable, and the number can also be adjusted according to the specifications of the corresponding reinforcement cage.

[0034] In a more specific embodiment, a limiting groove matching the steel cage is processed on the top of the cross bar longitudinal reinforcement support piece 17, and a limiting groove matching the steel cage is also processed on the lower longitudinal bar 14. Here, the shape of the limiting groove can be roughly U-shaped or semicircular.

[0035] In some specific embodiments, the vertical rod comprises a vertical rod inner core 3, and a vertical rod upper outer sleeve 2 and a vertical rod lower outer sleeve 1 respectively slidably mounted on the upper and lower ends of the vertical rod inner core 3, and the locking positions between the vertical rod upper outer sleeve 2 and the vertical rod lower outer sleeve 1 and the vertical rod inner core 3 are independently adjustable. In the specific process of adjusting the length, the vertical rod upper outer sleeve 2, the vertical rod lower outer sleeve 1 and the vertical rod inner core 3 are respectively slidably adjusted as needed, and after the length is adjusted to the desired position, the connection state between the two is locked, so that the length adjustment function is realized.

[0036] In some specific embodiments, in each set of side positioning support mechanisms, two vertical rods and two oblique rods are respectively provided one by one, and the tops of the two vertical rods are connected by an upper longitudinal rod 13, such as Figure 2 Of course, you can also refer to Figure 1 As shown, each set of side positioning support mechanisms has only one vertical rod and one oblique rod. At this time, two adjacent structures can be connected by using a structure such as the following longitudinal rod 14 and used in combination.

[0037] In some specific embodiments, the oblique rod member includes an oblique rod inner core 7, and an oblique rod upper outer sleeve 6 and an oblique rod lower outer sleeve 8 respectively slidably mounted on the upper and lower ends of the oblique rod inner core 7, and the locking positions between the oblique rod upper outer sleeve 6 and the oblique rod lower outer sleeve 8 and the oblique rod inner core 7 are independently adjustable. The length adjustment process of the oblique rod member can refer to the vertical rod member.

[0038] In a more specific embodiment, a rotating block 9 is also rotatably mounted on the top of the vertical rod, and the rotating center axis around which the rotating block 9 rotates is perpendicular to the plane where the vertical rod and the oblique rod are located. A fine-tuning screw 11 is also rotatably mounted on the rotating block 9 along the direction of the oblique rod, and the bottom of the fine-tuning screw 11 is threadedly connected to the outer sleeve 6 on the oblique rod. More preferably, a hole 19 is also processed on the top of the fine-tuning screw 11 to facilitate the insertion of structures such as a pry bar, thereby facilitating the rotation adjustment of the fine-tuning screw 11. In addition, the fine-tuning screw 11 itself can be rotatably set on the rotating block 9 through existing conventional structures such as bearings, and the direction of the rotation center axis of the fine-tuning screw 11 is colinear with the center axis of the oblique rod. In this way, by rotating the fine-tuning screw 11 and coordinating the threaded connection between the bottom and the top of the oblique rod, precise adjustment of the length of the oblique rod can be achieved.

[0039] In some specific embodiments, a bottom slide plate 18 is provided at the bottom of the oblique rod, and the bottom slider 12 is rotatably mounted on the bottom slide plate 18 by a hinge. By rotatably mounting the bottom slider 12 by a hinge or other structure, the oblique rod can be conveniently telescopically adjusted by moving the oblique rod in a horizontal plane.

[0040] In some specific embodiments, a diagonal rod support slot 15 is detachably mounted on the diagonal rod, and the installation position of the diagonal rod support slot 15 on the diagonal rod is adjustable, and the diagonal rod support slot 15 is provided with a guide through hole for the cross-bar longitudinal reinforcement support piece 17 to pass through. Specifically, the structure of the cross-bar longitudinal reinforcement support piece 17 includes a plurality of cross-bar longitudinal reinforcement support rods arranged in parallel and spaced apart, and the number and spacing of the cross-bar longitudinal reinforcement support rods are determined according to the number and spacing of the web longitudinal reinforcements. At the same time, the bottoms of all the cross-bar longitudinal reinforcement support rods are connected as a whole through the bottom connecting reinforcement rod. During installation, one of the cross-bar longitudinal reinforcement support rods passes through the guide through hole, and during operation, the position of the cross-bar longitudinal reinforcement support piece 17 on the diagonal rod support slot 15 is moved to achieve the support positioning of the web longitudinal reinforcements.

[0041] The above embodiments may be implemented individually or in any combination of two or more.

[0042] The above implementation is described in more detail below in conjunction with specific examples.

[0043] Embodiment 1:

[0044] In order to adapt to different forms of box girder reinforcement binding operations, this embodiment provides an adjustable box girder reinforcement binding tire frame based on a sliding mechanism, and its structure can be seen in Figures 2 to 7 As shown, including:

[0045] A bottom positioning support mechanism is used to position the bottom plate steel bars supporting the steel cage;

[0046] Two groups of side positioning support mechanisms are symmetrically located on both sides of the bottom positioning support mechanism and are used to position and support the web longitudinal reinforcement of the steel cage.

[0047] In this embodiment, the bottom positioning support mechanism includes two transverse rods arranged in parallel and spaced apart, and the two transverse rods are connected by a detachable lower longitudinal rod 14. The transverse rod includes a transverse rod inner core 5 located in the middle, and a transverse rod outer sleeve 4 slidably connected to both ends of the transverse rod inner core 5, so that the length of the transverse rod is adjustable, and a plurality of transverse rod longitudinal reinforcement support pieces 17 for positioning and supporting the bottom plate reinforcement of the reinforcement cage can be detachably arranged on the transverse rod inner core 5. The arrangement spacing of the transverse rod longitudinal reinforcement support pieces 17 is adjustable, and the number can also be adjusted according to the reinforcement design requirements of the corresponding reinforcement cage.

[0048] In this embodiment, the side positioning support mechanism includes a vertical rod and an oblique rod. The lengths of the vertical rod and the oblique rod are adjustable. The upper end of the oblique rod is rotatably connected to the top of the vertical rod, and the lower end is equipped with a bottom slider 12 that can slide back and forth on the bottom positioning support mechanism. The oblique rod is also provided with an oblique rod longitudinal rib bracket 16 that can support and position the longitudinal ribs of the web.

[0049] The vertical rod member includes a vertical rod inner core 3, and a vertical rod upper outer sleeve 2 and a vertical rod lower outer sleeve 1 which are respectively slidably mounted on the upper and lower ends of the vertical rod inner core 3, and the locking positions between the vertical rod upper outer sleeve 2 and the vertical rod lower outer sleeve 1 and the vertical rod inner core 3 are independently adjustable. In the specific process of adjusting the length, the vertical rod upper outer sleeve 2, the vertical rod lower outer sleeve 1 and the vertical rod inner core 3 are respectively slidably adjusted as needed, and after the length is adjusted to the desired position, the connection state between the two is locked, so that the length adjustment function is realized.

[0050] In each set of side positioning support mechanisms, the vertical rods and the oblique rods are respectively provided with two corresponding ones, and the tops of the two vertical rods are connected by an upper longitudinal rod 13, such as Figure 2 shown.

[0051] The oblique rod member includes an oblique rod inner core 7, and an oblique rod upper outer sleeve 6 and an oblique rod lower outer sleeve 8 respectively slidably mounted on the upper and lower ends of the oblique rod inner core 7, and the locking positions between the oblique rod upper outer sleeve 6 and the oblique rod lower outer sleeve 8 and the oblique rod inner core 7 are independently adjustable. The length adjustment process of the oblique rod member can refer to the vertical rod member.

[0052] The top of the vertical rod is provided with a top shaft plate 10, on which a rotating block 9 is rotatably mounted, the rotating center axis of which is perpendicular to the plane where the vertical rod and the oblique rod are located, and on which a fine-tuning screw 11 is rotatably mounted along the direction of the oblique rod, the bottom of which is threadedly connected to the outer sleeve 6 on the oblique rod. Figure 5 and Figure 6 As shown in the figure, the top of the fine-tuning screw 11 is also processed with a hole 19 to facilitate the insertion of structures such as a pry bar, thereby facilitating the rotation adjustment of the fine-tuning screw 11. In addition, the fine-tuning screw 11 itself can be rotatably set on the rotating block 9 through existing conventional structures such as bearings, and the rotation center axis direction of the fine-tuning screw 11 is colinear with the center axis of the oblique rod. In this way, by rotating the fine-tuning screw 11 and coordinating the threaded connection between the bottom and the top of the oblique rod, the length of the oblique rod can be accurately adjusted.

[0053] The bottom of the oblique rod is provided with a bottom slide plate 18, and the bottom slider 12 is rotatably mounted on the bottom slide plate 18 by a hinge. By rotating and mounting the bottom slider 12 by a hinge or other structure, the oblique rod can be easily adjusted in telescopic manner by moving the oblique rod in a horizontal plane.

[0054] The oblique rod member is detachably mounted with an oblique rod support slot 15, and the installation position of the oblique rod support slot 15 on the oblique rod member is adjustable. The oblique rod support slot 15 is provided with a guide hole for the cross-bar longitudinal reinforcement support piece 17 to pass through. Specifically, the structure of the cross-bar longitudinal reinforcement support piece 17 includes a plurality of parallel and spaced cross-bar longitudinal reinforcement support rods, the number and spacing of which are determined according to the number and spacing of the web longitudinal reinforcements. At the same time, the bottoms of all the cross-bar longitudinal reinforcement support rods are connected as a whole through the bottom connecting rib rod. During installation, one of the cross-bar longitudinal reinforcement support rods passes through the guide hole, and during operation, the position of the cross-bar longitudinal reinforcement support piece 17 on the oblique rod support slot 15 is moved to achieve the support positioning of the web longitudinal reinforcements.

[0055] In addition, it should be pointed out that in the present embodiment, structures such as diagonal rods, vertical rods, and transverse rods are all provided with 50 mm universal connection holes or through-hole screw holes, which cooperate with corresponding fastening bolts, etc., for fixation after length adjustment, and detachable connection between each other.

[0056] The upper longitudinal rod 13, the lower longitudinal rod 14, and the cross bar longitudinal reinforcement support piece 17 are all provided with limiting grooves matching the corresponding areas of the steel cage, and the shape of the limiting grooves can be roughly U-shaped or semi-circular.

[0057] In the specific work, the horizontal rods and vertical rods should be adjusted to the corresponding lengths according to the design drawings, and then positioned with bolts. The length of the oblique rod is not obtained directly by adjusting the oblique rod, but by moving the bottom slider 12 into position to achieve the driven extension and contraction of the oblique rod to reach the designed angle and length. After the bottom slider 12 moves to the designed position, the oblique rod will automatically reach the designed angle due to the constraints of the rotating structure such as the hinge. At this time, the bottom slider 12 is fixed on the horizontal rod, and then the universal screw hole on the inner core 7 of the oblique rod is adjusted to coincide with the upper outer jacket 6 of the oblique rod or the lower outer jacket 8 of the oblique rod, and then the inner core and the outer jacket are fixed with bolts. In order to further adjust the relative position on the oblique rod, the fine-tuning screw 11 can also be twisted with external tools such as a pry bar, so that the inner core and the outer jacket in the oblique rod slide within a small range, and then tightened with bolts after fine-tuning in place. At this point, the cross-sectional shape of the tire frame has been set.

[0058] Finally, multiple frames are set according to the required length of the precast beam, the upper longitudinal rod 13 is fixed to the rotating block 99 by bolts, and the lower longitudinal rod 14 is fixed to the transverse rod by bolts to achieve the connection and extension between the multiple frames. According to the number and spacing of the designed bottom plate longitudinal bars, the transverse rod longitudinal bar support piece 17 is fixed to the transverse rod with double-sided bolts, and the diagonal rod longitudinal bar slot is fixed to the diagonal rod with nylon anti-slip bolts according to the number and spacing of the web longitudinal bars, and then the diagonal rod longitudinal bar bracket 16 is inserted into the diagonal rod longitudinal bar slot.

[0059] During construction, the stirrups are placed in the three-dimensional slot system formed by the upper and lower longitudinal bars 14, and the bottom plate steel bars are positioned on the bottom plate inside the stirrups through the cross bar longitudinal bar support pieces 17, and the web longitudinal bars are supported on the diagonal bar longitudinal bar brackets 16, so that the steel cage can be accurately positioned, and the binding operation can be carried out on this basis.

[0060] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. An adjustable box girder reinforcement tyre frame based on a sliding mechanism, characterized in that: include: A bottom positioning support mechanism is used to position the bottom plate steel bars supporting the steel cage; Two groups of side positioning support mechanisms are symmetrically located on both sides of the bottom positioning support mechanism and are used to position and support the web longitudinal reinforcement of the steel cage. The side positioning support mechanism includes vertical rods and oblique rods. The lengths of the vertical rods and the oblique rods are adjustable. The upper ends of the oblique rods are rotatably connected to the tops of the vertical rods, and the lower ends are equipped with bottom sliders that can slide back and forth on the bottom positioning support mechanism. The oblique rods are also provided with oblique rod longitudinal reinforcement brackets that can support and position the web longitudinal reinforcement.

2. The adjustable box girder reinforcement tyre tyre based on a sliding mechanism according to claim 1 is characterized in that: The bottom positioning support mechanism includes two transverse rods arranged in parallel and at intervals, and the two transverse rods are connected by a detachable lower longitudinal rod. The transverse rod includes a transverse rod inner core located in the middle, and a transverse rod outer sleeve slidably connected to both ends of the transverse rod inner core, so that the length of the transverse rod is adjustable. A number of transverse rod longitudinal reinforcement support plates for positioning and supporting the bottom plate reinforcement of the reinforcement cage are also detachably arranged on the transverse rod inner core.

3. The adjustable box girder reinforcement tyre tyre based on a sliding mechanism according to claim 2 is characterized in that: The top of the cross bar longitudinal reinforcement support piece is processed with a limiting groove matching the steel cage.

4. The adjustable box girder reinforcement binding cradle based on a sliding mechanism according to claim 2 is characterized in that: The lower longitudinal rod is also processed with a limiting groove matching the steel cage.

5. The adjustable box girder reinforcement tyre tyre based on a sliding mechanism according to claim 1 is characterized in that: The vertical rod member comprises a vertical rod inner core, and a vertical rod upper outer sleeve and a vertical rod lower outer sleeve which are respectively slidably mounted on the upper and lower ends of the vertical rod inner core, and the locking positions between the vertical rod upper outer sleeve and the vertical rod lower outer sleeve and the vertical rod inner core are independently adjustable.

6. The adjustable box girder reinforcement tyre tyre based on a sliding mechanism according to claim 1 is characterized in that: In each set of side positioning support mechanisms, two vertical rods and two oblique rods are respectively provided in a one-to-one correspondence, and the tops of the two vertical rods are connected by an upper longitudinal rod.

7. The adjustable box girder reinforcement tyre tyre based on a sliding mechanism according to claim 1 is characterized in that: The oblique rod member includes an oblique rod inner core, and an oblique rod upper outer sleeve and an oblique rod lower outer sleeve which are slidably mounted on the upper and lower ends of the oblique rod inner core respectively. The locking positions between the oblique rod upper outer sleeve and the oblique rod lower outer sleeve and the oblique rod inner core are independently adjustable.

8. The adjustable box girder reinforcement tyre tyre based on a sliding mechanism according to claim 7 is characterized in that: A rotating block is also rotatably installed on the top of the vertical rod, and the rotating center axis around which the rotating block rotates is perpendicular to the plane where the vertical rod and the oblique rod are located. A fine-tuning screw is also rotatably installed on the rotating block along the direction of the oblique rod, and the bottom of the fine-tuning screw is threadedly connected to the outer sleeve on the oblique rod.

9. The adjustable box girder reinforcement tyre tyre based on a sliding mechanism according to claim 1, characterized in that: A bottom slide plate is provided at the bottom of the oblique rod, and the bottom slide block is rotatably mounted on the bottom slide plate through a hinge.

10. The adjustable box girder reinforcement tyre tyre based on a sliding mechanism according to claim 1, characterized in that: The oblique rod member is detachably provided with an oblique rod bracket slot, and the installation position of the oblique rod bracket slot on the oblique rod member is adjustable. The oblique rod bracket slot is provided with a guide through hole for the longitudinal rib support piece of the cross bar to pass through.

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