A bridge girder erection machine flexible support leg anchoring device, bridge girder erection machine flexible support leg and bridge girder erection machine

Abstract

The application provides a bridge girder erection machine flexible support leg anchoring device, a bridge girder erection machine flexible support leg and a bridge girder erection machine, and relates to the technical field of bridge girder erection machines.The bridge girder erection machine flexible support leg anchoring device is used for the bridge girder erection machine flexible support leg.The bridge girder erection machine flexible support leg comprises a flexible support leg body, the flexible support leg body comprises an upper column body and a lower column body which are telescopically connected, and comprises an upper connecting seat, an adjustable telescopic device and a supporting base.Two adjustable telescopic devices are arranged on the two sides of the flexible support leg body, one end of each of the two adjustable telescopic devices is connected to the upper column body through a corresponding upper connecting seat, the other end of each of the two adjustable telescopic devices is connected to one end of the supporting base, the supporting base is used for being connected to the lower column body, and the distance between the one end of each of the two adjustable telescopic devices connected to the upper connecting seat is smaller than the distance between the other end of each of the two adjustable telescopic devices.The flexible support leg body can be stably supported in the case that anchoring cannot be pulled, and the construction efficiency is higher without the need of punching anchoring holes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge erecting machine, in particular to a flexible support leg anchoring device of bridge erecting machine, a flexible support leg of bridge erecting machine and a bridge erecting machine. BACKGROUND

[0002] With the development of railway construction, the demand for bridge erecting machines used for railway box girder erection is increasing. After the box girder is erected for a distance, the bridge erecting machine needs to be transferred. When the roadbed through which the bridge erecting machine is transferred is long, the bridge erecting machine is transferred by means of a beam carrier. When the roadbed through which the bridge erecting machine is transferred is short, the bridge erecting machine is transferred by means of a step-by-step hole passing mode.

[0003] When the bridge erecting machine is step-by-step passing through the hole, the flexible support leg (i.e. the front support leg) of the bridge erecting machine needs to overcome not only the vertical load caused by the self-weight but also the horizontal thrust caused by the hole passing. Therefore, when the bridge erecting machine is step-by-step passing through the hole, the flexible support leg must be stably supported on the roadbed. In the prior art, when the bridge erecting machine is step-by-step passing through the hole, the roadbed surface on which the flexible support leg is located is usually locally reinforced and an anchoring hole is additionally provided. Anchoring is performed between the flexible support leg and the anchoring hole. However, this reinforcing method has the problems of time-consuming, labor-intensive and low efficiency because the existing roadbed needs to be processed twice. SUMMARY

[0004] The present application aims to solve the technical problems of complex reinforcing method and low efficiency of the flexible support leg of the existing bridge erecting machine when the bridge erecting machine is transferred by means of a step-by-step hole passing mode.

[0005] In a first aspect, the present application provides a flexible support leg anchoring device of a bridge erecting machine, which is used for a flexible support leg of a bridge erecting machine. The flexible support leg of the bridge erecting machine comprises a flexible support leg body, the flexible support leg body comprises an upper column body and a lower column body which are telescopically connected, an upper connecting seat, an adjustable telescopic device and a support base. Two adjustable telescopic devices are oppositely arranged on two sides of the flexible support leg body. One end of each of the two adjustable telescopic devices is connected to the upper column body through a corresponding upper connecting seat. The other end of each of the two adjustable telescopic devices is connected to one end of the support base. The support base is connected to the lower column body. The distance between the two adjustable telescopic devices connected to one end of the upper connecting seat is less than the distance between the other ends of the two adjustable telescopic devices.

[0006] The flexible support leg anchoring device of the bridge machine, when the bridge machine is walking, the flexible support leg body needs to be repeatedly stretched and contracted, when the upper column of the flexible support leg body is moved up and down relative to the lower column, since the lower end of the adjustable telescopic device and the lower column are connected with the support base, the upper column drives the adjustable telescopic device to stretch and contract through the upper connecting seat, so that the relative height between the upper connecting seat and the support base is changed, thereby adapting to the height adjustment of the flexible support leg, since the distance between the upper ends of the two adjustable telescopic devices (i.e. the end connected with the upper connecting seat) is small and the distance between the lower ends is large, the two adjustable telescopic devices and the upper connecting seat and the support base form a tower-shaped structure with gradually increasing size from top to bottom, and stable support can be formed on the flexible support leg body without pulling the anchor or in the case where the anchor cannot be pulled; and since the anchoring hole does not need to be arranged on the roadbed, the secondary treatment of the roadbed is not needed, the construction process is simplified, and the construction efficiency is higher.

[0007] Optionally, the adjustable telescopic device comprises an outer sleeve and an inner sleeve which are sleeved with each other, the outer sleeve is connected with the upper connecting seat, and the inner sleeve is connected with the support base, and the outer sleeve is used to move along the axis direction relative to the inner sleeve.

[0008] Optionally, the adjustable telescopic device further comprises a locking bolt, a first connecting hole is arranged on the side wall of the outer sleeve, a plurality of second connecting holes are arranged on the side wall of the inner sleeve and are spaced apart along the axis direction, when the flexible support leg body is stretched and contracted to move the outer sleeve relative to the inner sleeve, the first connecting hole is used to align with one of the second connecting holes, and the locking bolt is used to be inserted into the first connecting hole and the corresponding second connecting hole.

[0009] Optionally, the adjustable telescopic device further comprises a rotary-to-linear motion mechanism, one end of the rotary-to-linear motion mechanism is connected with the support base, and the other end of the rotary-to-linear motion mechanism is drivingly connected with the inner sleeve, and the rotary-to-linear motion mechanism is used to drive the inner sleeve to move relative to the outer sleeve, so that the first connecting hole is aligned with one of the second connecting holes.

[0010] Optionally, the rotary-to-linear motion mechanism comprises an adjustable connecting rod and a lower connecting rod, the two ends of the adjustable connecting rod are respectively provided with first and second thread structures with opposite rotation directions, one end of the lower connecting rod is provided with a fourth thread structure, and the other end of the adjustable connecting rod is connected with the inner sleeve through the first thread structure and a third thread structure arranged on the end of the inner sleeve away from the outer sleeve, and the other end of the adjustable connecting rod is connected with one end of the lower connecting rod through the second thread structure and the fourth thread structure, and the other end of the lower connecting rod is connected with the support base; when the adjustable connecting rod is rotated, the adjustable connecting rod drives the inner sleeve to move relative to the outer sleeve.

[0011] Optionally, the bridge machine flexible support leg anchoring device further comprises a lower connecting seat, which is arranged between the adjustable telescopic device and the support base, one end of the lower connecting seat is hinged to the adjustable telescopic device, and the other end of the lower connecting seat is fixed to the support base; when the adjustable telescopic device is telescoped, the adjustable telescopic device rotates around the hinge point of the lower connecting seat.

[0012] Optionally, the upper connecting seat and the lower connecting seat are hinge ear structures; and / or the support base is a box type structure.

[0013] In a second aspect, the present application provides a bridge machine flexible support leg, which comprises a flexible support leg body and the above-mentioned bridge machine flexible support leg anchoring device, and the bridge machine flexible support leg anchoring device is connected to the flexible support leg body. The bridge machine flexible support leg of the present application has the same advantages as the above-mentioned bridge machine flexible support leg anchoring device, and will not be repeated here.

[0014] Optionally, the flexible support leg body comprises upper columns, lower columns and a cross beam, two upper columns are arranged oppositely, two upper columns are respectively connected to corresponding lower columns in an extendable manner, two upper columns and / or two lower columns are connected through the cross beam, two bridge machine flexible support leg anchoring devices are arranged along the extension direction of the cross beam, and each bridge machine flexible support leg anchoring device is connected to corresponding upper columns and lower columns.

[0015] In a third aspect, the present application provides a bridge machine, which comprises the above-mentioned bridge machine flexible support leg. The bridge machine of the present application has the same advantages as the above-mentioned bridge machine flexible support leg, and will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural schematic view of a bridge machine flexible support leg anchoring device according to an embodiment of the present application;

[0017] Figure 2 FIG. 2 is a structural schematic view of a bridge machine flexible support leg according to an embodiment of the present application;

[0018] Figure 3 FIG. 3 is a structural schematic view of another view of a bridge machine flexible support leg according to an embodiment of the present application.

[0019] MARKED FOR EXPLANATION:

[0020] 1. Upper connecting seat; 2. Adjustable telescopic device; 21. Outer sleeve; 211. First connecting hole; 22. Inner sleeve; 221. Second connecting hole; 23. Locking pin; 24. Adjustable connecting rod; 241. First threaded structure; 242. Second threaded structure; 25. Lower connecting rod; 3. Support base; 4. Lower connecting seat; 5. Flexible support leg body; 51. Upper column; 52. Lower column; 53. Crossbeam. Detailed Implementation

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fitting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] In addition, it should be noted that in the description of the present invention, terms such as "upper," "lower," "front," and "rear" used to indicate orientation in various embodiments are only for simplifying the description of the positional relationships based on the accompanying drawings and do not mean that the elements and devices referred to must be operated in accordance with the specific orientation and limited operation, method, and structure in the specification. Such directional terms do not constitute a limitation on the present invention.

[0024] This paper establishes a coordinate system XYZ, where the positive direction of the X-axis represents the front and the negative direction of the X-axis represents the back, the positive direction of the Y-axis represents the left and the negative direction of the Y-axis represents the right, the positive direction of the Z-axis represents the top and the negative direction of the Z-axis represents the bottom.

[0025] like Figures 1-2 As shown in the figure, an embodiment of the present invention provides a flexible support leg anchoring device for a bridge erecting machine. The flexible support leg includes a flexible support leg body 5, which includes a retractable upper column 51 and a lower column 52. It includes an upper connecting seat 1, adjustable telescopic devices 2, and a support base 3. Two adjustable telescopic devices 2 are positioned opposite each other on both sides of the flexible support leg body 5. One end of each adjustable telescopic device 2 is connected to the upper column 51 via the corresponding upper connecting seat 1, and the other end of each adjustable telescopic device 2 is connected to both ends of the support base 3. The support base 3 is connected to the lower column 52. The distance between the two adjustable telescopic devices 2 and the end connected to the upper connecting seat 1 is less than the distance between the other ends of the two adjustable telescopic devices 2.

[0026] In the embodiment, the upper column body 51 and the lower column body 52 of the flexible support leg body 5 are vertically arranged, which can be square columns, and the upper column body 51 of the flexible support leg body 5 is vertically telescopic relative to the lower column body 52, which can be driven by an oil cylinder or an air cylinder. The upper connecting seat 1 is fixedly connected with the upper column body 51, the upper connecting seat 1 is hingedly connected with the adjustable telescopic device 2, the supporting base 3 is hingedly connected with the adjustable telescopic device 2, and the supporting base 3 is fixedly connected with the flexible support leg body 5. When the upper column body 51 is telescopic relative to the lower column body 52, the upper column body 51 drives the adjustable telescopic device 2 to be telescopic along the axial direction of the adjustable telescopic device 2 through the upper connecting seat 1, and the relative height between the upper connecting seat 1 and the supporting base 3 is adjusted to adapt to the telescopic adjustment of the flexible support leg body 5.

[0027] The telescopic direction of the adjustable telescopic device 2 has a certain inclination angle relative to the axis of the flexible support leg body 5, the upper ends of the two adjustable telescopic devices 2 are close to each other, the lower ends are away from each other, and the two adjustable telescopic devices 2 are substantially in an eight-shaped structure. The distance between the upper ends of the two adjustable telescopic devices 2 is smaller, and the distance between the lower ends is larger. The two adjustable telescopic devices 2, the two upper connecting seats 1 and the supporting base 3 form a triangular or trapezoidal tower structure with gradually increasing cross-sectional size from top to bottom, and form stable support for the flexible support leg body 5. It should be noted that the opposite surfaces of the two upper connecting seats 1 have a gap, and the size of the gap depends on the thickness of the upper column body 51.

[0028] By using the scheme in the embodiment, the flexible support leg body 5 can be stably supported without anchor holes and anchors on the roadbed, and can be applied in an environment where anchors cannot be pulled, thereby increasing the applicable environment of the flexible support leg.

[0029] As shown in Figures 1-2 Optionally, the adjustable telescopic device 2 comprises an outer sleeve 21 and an inner sleeve 22 which are sleeved with each other, the outer sleeve 21 is connected with the upper connecting seat 1, the inner sleeve 22 is connected with the supporting base 3, and the outer sleeve 21 is used to move along the axial direction relative to the inner sleeve 22.

[0030] In the embodiment, the outer sleeve 21 and the inner sleeve 22 can be cylindrical structures, and the two can be relatively telescopic. When the upper column body 51 moves up and down relative to the lower column body 52, the upper column body 51 drives the outer sleeve 21 to move along the axial direction of the inner sleeve 22 relative to the inner sleeve 22 through the upper connecting seat 1, and the adjustable telescopic device 2 generates a vertical component when it is telescopic, thereby driving the height position of the upper connecting seat 1 relative to the supporting base 3 to change.

[0031] As shown in Figure 1As shown, the adjustable telescopic device 2 further comprises a locking pin 23, the side wall of the outer sleeve 21 is provided with a first connecting hole 211, the side wall of the inner sleeve 22 is provided with a plurality of second connecting holes 221 along the axial direction, when the flexible leg body 5 is telescoped to move the outer sleeve 21 relative to the inner sleeve 22, the first connecting hole 211 is used to align with one of the second connecting holes 221, and the locking pin 23 is used to be inserted into the first connecting hole 211 and the corresponding second connecting hole 221.

[0032] In the embodiment, the locking pin 23 is a pin shaft, the first connecting hole 211 can be provided with one, and the second connecting holes 221 can be provided with a plurality of, the spacing between adjacent second connecting holes 221 is not too large, so that when the outer sleeve 21 is moved to the position relative to the inner sleeve 22 under the driving of the column body 51, the first connecting hole 211 is not aligned with any one of the second connecting holes 221, and the locking pin 23 cannot be inserted for locking; of course, the spacing between the connected second connecting holes 221 is also not too small, which will reduce the support strength of the inner sleeve 22 and make the overall stability of the adjustable telescopic device 2 poor. The alignment of the holes refers to the center lines of the two holes coinciding.

[0033] In other embodiments, the first connecting hole 211 and the second connecting hole 221 are respectively provided with a plurality of, when the outer sleeve 21 is moved to the position relative to the inner sleeve 22, one of the first connecting holes 211 is aligned with one of the second connecting holes 221, and the locking pin 23 can be inserted to realize the locking between the outer sleeve 21 and the inner sleeve 22.

[0034] Optionally, the adjustable telescopic device 2 further comprises a rotary-to-linear motion mechanism, one end of the rotary-to-linear motion mechanism is connected with the support base 3, and the other end of the rotary-to-linear motion mechanism is drivingly connected with the inner sleeve 22, and the rotary-to-linear motion mechanism is used to drive the inner sleeve 22 to move relative to the outer sleeve 21, so that the first connecting hole 211 is aligned with one of the second connecting holes 221.

[0035] In the embodiment, the rotary-to-linear motion mechanism is used to realize the fine adjustment of the relative position between the inner sleeve 22 and the outer sleeve 21. When the flexible leg body 5 is telescoped to move the outer sleeve 21 to the position relative to the inner sleeve 22, if the first connecting hole 211 is aligned with one of the second connecting holes 221 at this time, the rotary-to-linear motion mechanism does not act, and the locking pin 23 is inserted into the first connecting hole 211 and the second connecting hole 221 aligned with each other.

[0036] When the flexible support body 5 is extended to drive the outer sleeve 21 to move relative to the inner sleeve 22, if the first connecting hole 211 is not aligned with any of the second connecting holes 221, for example, the first connecting hole 211 is aligned with the middle position of the two second connecting holes 221, or the first connecting hole 211 is partially aligned with the second connecting hole 221, the rotating-to-linear motion mechanism needs to be driven to drive the inner sleeve 22 to move relative to the outer sleeve 21 until the first connecting hole 211 is completely aligned with one of the second connecting holes 221.

[0037] As shown in Figures 1-2 Optionally, the rotating-to-linear motion mechanism includes an adjustable connecting rod 24 and a lower connecting rod 25, the two ends of the adjustable connecting rod 24 are respectively provided with first and second thread structures 241 and 242 with opposite rotation directions, the end of the inner sleeve 22 away from the outer sleeve 21 is provided with a third thread structure, one end of the lower connecting rod 25 is provided with a fourth thread structure, one end of the adjustable connecting rod 24 is connected with the inner sleeve 22 through the first thread structure 241 and the third thread structure, the other end of the adjustable connecting rod 24 is connected with one end of the lower connecting rod 25 through the second thread structure 242 and the fourth thread structure, the other end of the lower connecting rod 25 is connected with the support base 3; when the adjustable connecting rod 24 is rotated, the adjustable connecting rod 24 drives the inner sleeve 22 to move relative to the outer sleeve 21.

[0038] In this embodiment, the adjustable connecting rod 24, the lower connecting rod 25, the outer sleeve 21 and the inner sleeve 22 are coaxially arranged, the pitches of the first and second thread structures 241 and 242 at the two ends of the adjustable connecting rod 24 can be the same, when the adjustable connecting rod 24 is rotated, the first thread structure 241 is relatively rotated with the third thread structure of the inner sleeve 22, and the second thread structure 242 is relatively rotated with the fourth thread structure of the lower connecting rod 25.

[0039] The threads at the two ends of the adjustable connecting rod 24 can be lubricated to reduce the rotating resistance, specifically, the adjustable connecting rod 24 is provided with lubricating oil holes, the adjustable connecting rod 24 is hollow, and lubricating oil enters from the lubricating oil holes to flow to the threads at the two ends, while the frictional resistance between the contact surfaces of the inner sleeve 22 and the outer sleeve 21 is large, when the adjustable connecting rod 24 is rotated, under the limitation of the outer sleeve 21, the adjustable connecting rod 24 almost does not drive the inner sleeve 22 to rotate, but only relatively rotates with the inner sleeve 22.

[0040] Further, since the threads on both ends of the adjustable connecting rod 24 are opposite in direction, the two ends of the adjustable connecting rod 24 are screwed into or out of the lower connecting rod 25 and the inner sleeve 22 at the same time, so that the two ends of the adjustable connecting rod 24 are simultaneously extended and retracted, and the inner sleeve 22 moves linearly relative to the outer sleeve 21 under the limitation of the limiting groove and the limiting protrusion. At this time, the outer sleeve 21 can guide the movement of the inner sleeve 22.

[0041] It should be noted that even if the inner sleeve 22 is rotated during the rotation of the adjustable connecting rod 24, so that the directions of the second connecting hole 221 and the first connecting hole 211 are dislocated, the second connecting hole 221 and the first connecting hole 211 can be aligned again by rotating the inner sleeve 22 in the opposite direction.

[0042] As shown in Figures 1-2 Optionally, the bridge girder flexible leg anchoring device further comprises a lower connecting seat 4, which is arranged between the adjustable telescopic device 2 and the support base 3, one end of the lower connecting seat 4 is hinged to the adjustable telescopic device 2, and the other end of the lower connecting seat 4 is fixed to the support base 3; when the adjustable telescopic device 2 is telescoped, the adjustable telescopic device 2 rotates around the hinge point with the lower connecting seat 4.

[0043] In this embodiment, the lower connecting seat 4 can be integrally formed with the support base 3, improving the stability of the connection. The adjustable telescopic device 2 rotates around the hinge point with the lower connecting seat 4 during the telescoping process. Here, the rotation axis of the adjustable telescopic device 2 relative to the lower connecting seat 4 does not coincide with the axis of the adjustable telescopic device 2 itself, so that the lower connecting rod 25 does not rotate when the adjustable connecting rod 24 rotates under the limitation of the lower connecting seat 4, and the adjustable connecting rod 24 rotates in or out relative to the lower connecting rod 25.

[0044] Optionally, the upper connecting seat 1 and the lower connecting seat 4 are hinge ear structures, and / or the support base 3 is a box-shaped structure.

[0045] In this embodiment, the upper connecting seat 1 and the lower connecting seat 4 adopt a hinge ear structure, which is simple in structure and a standard part. The support base 3 adopts a box-shaped structure, which has a large cross-sectional size, increases the contact area with the roadbed, has a large gravity, and can provide stable support.

[0046] Here, both ends of the adjustable telescopic device 2 are provided with hinge holes, the center lines of the two hinge holes can be parallel to each other, the upper connecting seat 1 and the lower connecting seat 4 are provided with ear holes, and a pin shaft passes through the hinge holes and the corresponding ear holes to realize the hinge connection. When the adjustable telescopic device 2 is telescoped, both ends thereof rotate around the two hinge points.

[0047] As shown in Figures 2-3As shown, another embodiment of the present invention proposes a flexible outrigger for a bridge erecting machine, including a flexible outrigger body 5 and the aforementioned flexible outrigger anchoring device, wherein the flexible outrigger anchoring device is connected to the flexible outrigger body 5. The advantages of the flexible outrigger for the bridge erecting machine described in this embodiment compared to the prior art are the same as those of the aforementioned flexible outrigger anchoring device, and will not be repeated here.

[0048] like Figure 3 As shown, optionally, the flexible outrigger body 5 includes an upper column 51, a lower column 52, and a crossbeam 53. The two upper columns 51 are arranged opposite to each other, and the two upper columns 51 are telescopically connected to the corresponding lower columns 52. The two upper columns 51 and / or the two lower columns 52 are connected through the crossbeam 53. The flexible outrigger anchoring device of the bridge erecting machine is provided at intervals along the extension direction of the crossbeam 53. Each flexible outrigger anchoring device of the bridge erecting machine is connected to the corresponding upper column 51 and lower column 52.

[0049] In this embodiment, one or more crossbeams 53 can be installed along the Y-axis to improve the connection stability between the upper columns 51 on the left and right sides, or to improve the connection stability between the lower columns 52 on the left and right sides. Two flexible support leg anchoring devices for the bridge erecting machine are located at both ends of the crossbeam 53, providing better support stability.

[0050] Another embodiment of the present invention proposes a bridge erecting machine, including the aforementioned flexible support legs. The advantages of the bridge erecting machine described in this embodiment compared to the prior art are the same as those of the aforementioned flexible support legs, and will not be repeated here.

[0051] While the disclosure is as stated above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this invention.

Claims

1. A bridge crane flexible leg anchoring device for a bridge crane flexible leg, the bridge crane flexible leg comprising a flexible leg body (5) comprising an upper column (51) and a lower column (52) telescopically connected, characterized in that, The utility model provides a flexible support leg body, including upper connecting seat (1), adjustable telescopic device (2) and support base (3), two adjustable telescopic device (2) are used to opposite setting in two sides of flexible support leg body body (5), one end of two adjustable telescopic device (2) is used for being connected with upper column (51) through corresponding upper connecting seat (1) respectively, the other end of two adjustable telescopic device (2) is connected with two ends of support base (3) respectively, support base (3) is used for being connected with lower column (52), the distance of two adjustable telescopic device (2) for being connected with upper connecting seat (1) one end is less than the distance of two adjustable telescopic device (2) other end, The adjustable telescopic device (2) includes an outer sleeve (21) and an inner sleeve (22) that are mutually sleeved, the outer sleeve (21) is connected with the upper connecting seat (1), the inner sleeve (22) is connected with the support base (3), the outer sleeve (21) is used for moving along the axis direction relative to the inner sleeve (22), a first connecting hole (211) is arranged on the side wall of the outer sleeve (21), a plurality of second connecting holes (221) are arranged on the side wall of the inner sleeve (22) and are spaced apart along the axis direction, The adjustable telescopic device (2) further includes a rotary-to-linear motion mechanism, one end of the rotary-to-linear motion mechanism is connected with the support base (3), the other end of the rotary-to-linear motion mechanism is drivingly connected with the inner sleeve (22), the rotary-to-linear motion mechanism is used to drive the inner sleeve (22) to move relative to the outer sleeve (21), so that the first connecting hole (211) is aligned with one of the second connecting holes (221), The rotary-to-linear motion mechanism includes an adjustable connecting rod (24) and a lower connecting rod (25), the two ends of the adjustable connecting rod (24) are respectively provided with first and second thread structures (241) and (242) with opposite rotation directions, one end of the inner sleeve (22) away from the outer sleeve (21) is provided with a third thread structure, one end of the lower connecting rod (25) is provided with a fourth thread structure, one end of the adjustable connecting rod (24) is connected with the inner sleeve (22) through the first thread structure (241) and the third thread structure, the other end of the adjustable connecting rod (24) is connected with one end of the lower connecting rod (25) through the second thread structure (242) and the fourth thread structure, the other end of the lower connecting rod (25) is connected with the support base (3); when the adjustable connecting rod (24) is rotated, the adjustable connecting rod (24) drives the inner sleeve (22) to move relative to the outer sleeve (21).

2. The bridge-launching machine flexible outrigger anchoring device of claim 1, wherein, The adjustable telescopic device (2) further includes a locking bolt (23), when the flexible support leg body (5) is telescoped to move the outer sleeve (21) relative to the inner sleeve (22), the first connecting hole (211) is aligned with one of the second connecting holes (221), and the locking bolt (23) is inserted into the first connecting hole (211) and the corresponding second connecting hole (221).

3. The bridge-launching machine flexible outrigger anchoring device of claim 1, wherein, Further comprising a lower connecting seat (4) arranged between the adjustable telescopic device (2) and the support base (3), one end of the lower connecting seat (4) is hinged with the adjustable telescopic device (2), the other end of the lower connecting seat (4) is fixed with the support base (3); when the adjustable telescopic device (2) is telescoped, the adjustable telescopic device (2) rotates around the hinge point of the lower connecting seat (4).

4. The bridge-launching machine flexible outrigger anchoring device of claim 3, wherein, The upper connecting seat (1) and the lower connecting seat (4) are hinge ear structures; and / or the support base (3) is a box type structure.

5. A bridge girder machine flexible leg, characterized by, The bridge girder anchoring device comprises a flexible support leg body (5) and the bridge girder flexible support leg anchoring device as claimed in any one of claims 1-4, the bridge girder flexible support leg anchoring device is connected with the flexible support leg body (5).

6. The bridge-launching machine flexible outrigger of claim 5, wherein, The flexible support leg body (5) comprises an upper column body (51), a lower column body (52) and a cross beam (53), two upper column bodies (51) are oppositely arranged, two upper column bodies (51) are respectively telescopically connected with corresponding lower column bodies (52), two upper column bodies (51) and / or two lower column bodies (52) are connected through the cross beam (53), the bridge girder flexible support leg anchoring device is arranged at intervals along the extension direction of the cross beam (53), and each bridge girder flexible support leg anchoring device is connected with corresponding upper column body (51) and lower column body (52).

7. A bridge-launching machine, characterized in that The bridge girder flexible support leg comprises the bridge girder flexible support leg anchoring device as claimed in any one of claims 5-6.

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