Outrigger device, road-rail dual-purpose vehicle and position adjustment method thereof

Abstract

The present invention relates to a leg device, a road-rail dual-purpose vehicle and a position adjustment method thereof. The leg device comprises: a leg mechanism (1) and a telescopic rod limiting device; wherein the leg mechanism (1) comprises a first telescopic leg (12) and a second telescopic leg (13), and the first telescopic leg (12) and the second telescopic leg (13) both have a first limiting portion; the telescopic rod limiting device comprises: a telescopic rod mechanism (2), and both ends of the telescopic rod mechanism (2) have a second limiting portion (21) corresponding to the first limiting portion; and a locking mechanism (3) detachably connected to the first limiting portion and the second limiting portion (21), so as to limit the relative position between the first telescopic leg (12) and the second telescopic leg (13) through the telescopic rod mechanism (2).

Description

Technical Field

[0001] The present disclosure relates to the field of road-rail vehicles, and in particular to a leg device, a road-rail vehicle and a position adjustment method thereof. Background Art

[0002] Dual-purpose road-rail engineering machinery vehicles are playing an increasingly important role in the field of domestic railway construction and maintenance. Dual-purpose road-rail cranes in related technologies can meet the rescue operations in narrow spaces such as in railway tunnels and under contact lines.

[0003] During rescue and railway maintenance operations, road-rail dual-use vehicles often need to cross from one track to the adjacent railway track. There is a drainage ditch between the two adjacent railway tracks, and the depth and width of the drainage ditch vary from region to region. Therefore, whether the drainage ditch can be crossed quickly and efficiently becomes a key factor in determining the efficiency of crossing adjacent railway tracks and rescue and maintenance operations. Summary of the invention

[0004] The inventor has found through research that the outriggers of the road-rail dual-purpose vehicle in the related art lift the vehicle up, and then the outriggers on both sides are extended and retracted to achieve the lateral translation of the vehicle. During the extension and retraction process of the outriggers, the force on the outriggers changes all the time, and the friction generated with the ground is affected by the hardness of the ground and the friction coefficient of the ground surface. When the friction generated by one of the outriggers with the ground is not enough to overcome the thrust of the outrigger, the outrigger will slide on the ground, causing the lateral translation of the whole vehicle to fail.

[0005] In view of this, the embodiments of the present disclosure provide a leg device, a road-rail dual-purpose vehicle and a position adjustment method thereof, which can be used to improve the success rate when the vehicle is laterally translated.

[0006] In one aspect of the present disclosure, a leg device is provided, comprising: a leg mechanism and a telescopic rod limiting device; wherein the leg mechanism comprises a first telescopic leg and a second telescopic leg, and the first telescopic leg and the second telescopic leg both have a first limiting portion;

[0007] The telescopic rod limiting device includes:

[0008] A telescopic rod mechanism, both ends of the telescopic rod mechanism have a second limiting portion corresponding to the first limiting portion;

[0009] The locking mechanism is detachably connected to the first limiting portion and the second limiting portion so as to limit the relative position between the first telescopic leg and the second telescopic leg through the telescopic rod mechanism.

[0010] In some embodiments, the leg mechanism further includes a cylinder for driving at least one of the first telescopic leg and the second telescopic leg.

[0011] In some embodiments, the leg mechanism further comprises:

[0012] A leg box, used for accommodating a first telescopic leg and a second telescopic leg;

[0013] The telescopic rod limiting device also includes:

[0014] The rotating mechanism is arranged on the upper part of the leg box and is configured to carry the telescopic rod mechanism and rotate with the rotation of the telescopic rod mechanism.

[0015] In some embodiments, the rotating mechanism comprises:

[0016] A rotating portion, including a rotating shaft;

[0017] A support portion including a seat ring hole corresponding to the rotating shaft;

[0018] The rotating part is inserted into the seat ring hole of the supporting part through the rotating shaft, so that the rotating part rotates along with the rotation of the telescopic rod mechanism.

[0019] In some embodiments, the rotating mechanism further comprises:

[0020] A plurality of locking devices are detachably connected to the rotating portion and the supporting portion and are configured as follows:

[0021] When the rotating part and the supporting part are connected at the same time, the relative movement between the rotating part and the supporting part is restricted;

[0022] When only connected to the rotating part, the restriction on the rotating part is released, so that the rotating part rotates relative to the supporting part along with the rotation of the telescopic rod mechanism.

[0023] In some embodiments, the locking device comprises:

[0024] a first locking portion;

[0025] A second locking portion disposed at a first end of the first locking portion; and

[0026] A third locking portion, disposed at a second end of the first locking portion;

[0027] Wherein, the rotating part further includes a plurality of first locking holes;

[0028] The support portion further includes a plurality of second locking holes, and the projection of the first locking holes on the support portion coincides with the second locking holes;

[0029] Wherein, the locking device is configured as follows:

[0030] When the second locking portion passes through the first locking hole to be connected with the rotating portion and the third locking portion passes through the second locking hole to be connected with the supporting portion, the relative movement between the rotating portion and the supporting portion is restricted.

[0031] In some embodiments, the rotating portion further comprises:

[0032] A lap plate configured to carry a second locking portion;

[0033] Wherein, the locking device is further configured as follows:

[0034] When the second locking portion is overlapped on the overlapping plate and the third locking portion is separated from the second locking hole, the rotating portion rotates relative to the supporting portion along with the rotation of the telescopic rod mechanism.

[0035] In some embodiments, the rotating portion further comprises:

[0036] a bearing member configured to bear the telescopic rod mechanism;

[0037] Wherein, the bearing member is detachably connected to the telescopic rod mechanism.

[0038] In some embodiments, the locking mechanism comprises:

[0039] plug socket; and

[0040] A support rod, wherein the support rod has a hollow cavity on a side close to the plug bolt;

[0041] The second limiting portion includes a sleeve;

[0042] Among them, the plug is configured to pass through the sleeve and insert into the hollow cavity of the support rod, the lower end surface of the sleeve abuts against the upper end surface of the support rod, and the upper end surface of the sleeve abuts against the plug, so as to limit the relative position between the first telescopic leg and the second telescopic leg through the telescopic rod mechanism.

[0043] In some embodiments, the first limiting portion includes a first limiting hole, and the second limiting portion includes a sleeve;

[0044] The locking mechanism is configured to pass through the sleeve and be inserted into the first limiting hole so as to limit the relative position between the first telescopic leg and the second telescopic leg through the telescopic rod mechanism.

[0045] In some embodiments, the telescopic rod mechanism comprises:

[0046] A plurality of telescopic rods and a plurality of connecting members with different diameters, wherein at least one telescopic rod has a plurality of first connecting holes, and the plurality of connecting members are configured to adjust and limit the length of the telescopic rod mechanism by connecting with the first connecting holes on adjacent and nested telescopic rods.

[0047] In some embodiments, the telescopic rod limiting device further includes:

[0048] The rotating mechanism is arranged on the upper part of the outrigger box and is configured to carry the telescopic rod mechanism and rotate with the rotation of the telescopic rod mechanism;

[0049] Among them, the telescopic rod with the largest diameter among the multiple telescopic rods is connected to the rotating mechanism;

[0050] The second limiting portion is located at the end of the telescopic rod with the smallest diameter among the multiple telescopic rods, so that the telescopic rod with the smallest diameter is connected to the first telescopic leg or the second telescopic leg.

[0051] In another aspect of the present disclosure, a road-rail vehicle is provided, comprising any of the above-described leg devices.

[0052] In some embodiments, the road-rail vehicle includes a chassis, and at least one of the first telescopic leg or the second telescopic leg is driven by a cylinder so that the chassis moves horizontally as the first telescopic leg or the second telescopic leg is extended or retracted.

[0053] In another aspect of the present disclosure, a method for adjusting the position of a road-rail dual-purpose vehicle as described above is provided, comprising:

[0054] Move the outrigger mechanism to a specified position;

[0055] Connect the telescopic rod mechanism to the outrigger mechanism;

[0056] The oil cylinder is driven to extend or retract the first telescopic leg or the second telescopic leg so that the chassis moves horizontally accordingly.

[0057] In some embodiments, the operation of connecting the telescopic rod mechanism to the leg mechanism includes:

[0058] Adjusting and limiting the length of the telescopic rod mechanism so that the second limiting portions at both ends of the telescopic rod mechanism are aligned with the first limiting portions on the first telescopic leg and the second telescopic leg respectively;

[0059] The first limiting portion and the second limiting portion are connected by a locking mechanism, so as to limit the relative position between the first telescopic leg and the second telescopic leg by the telescopic rod mechanism.

[0060] In some embodiments, the telescopic rod mechanism comprises:

[0061] A plurality of telescopic rods with different diameters, each telescopic rod having a plurality of first connection holes and a plurality of connection members, wherein at least one telescopic rod has a plurality of first connection holes;

[0062] The operations of adjusting and limiting the length of the telescopic rod mechanism specifically include:

[0063] Adjust multiple telescopic rods of different diameters to lengths corresponding to the legs;

[0064] The connecting piece is inserted into the first connecting hole on the adjacent and nested telescopic rods to combine a plurality of telescopic rods with different diameters.

[0065] Therefore, according to the disclosed embodiment, when it is necessary to lock the leg mechanism, the locking mechanism is connected to both the first limiting portion and the second limiting portion, so as to fix the telescopic rod limiting device to the leg mechanism, lock the width of the first telescopic leg and the second telescopic leg, so as to limit the relative movement of the first telescopic leg and the second telescopic leg, thereby preventing the leg mechanism from sliding and extending outward when the road-rail dual-use vehicle moves horizontally, and improving the stability and reliability of the lateral translation of the vehicle. In the case where it is not necessary to lock the leg mechanism, the restriction on the relative movement of the first telescopic leg and the second telescopic leg can be released by separating the locking mechanism from the first limiting portion and the second limiting portion, which has high operational flexibility and simplicity. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0067] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0068] Figure 1 is a schematic structural diagram of some embodiments of the outrigger device according to the present disclosure;

[0069] Figure 2 is an exploded structural schematic diagram of a rotating mechanism in some embodiments of the outrigger device according to the present disclosure;

[0070] Figure 3 (a) is a side view of a rotating mechanism in some embodiments of the leg device according to the present disclosure;

[0071] Figure 3 (b) is Figure 3 (a) is a cross-sectional view of section AA;

[0072] Figure 4 is a schematic structural diagram of a rotating mechanism in some other embodiments of the leg support device disclosed herein;

[0073] Figure 5 is an exploded schematic diagram of an assembly structure of a locking mechanism and a telescopic rod in some embodiments of the leg support device disclosed herein;

[0074] Figure 6 is a schematic diagram of the assembly structure of a locking mechanism, a telescopic rod mechanism and a rotating mechanism in some embodiments of the leg support device disclosed herein;

[0075] Figure 7 is a schematic structural diagram of a telescopic rod mechanism in some other embodiments of the leg support device disclosed herein;

[0076] Figure 8is a partial cross-sectional view of a telescopic rod mechanism in some other embodiments of the leg support device according to the present disclosure;

[0077] Fig. 9 is a schematic structural diagram of some embodiments of a road-rail dual-purpose vehicle according to the present disclosure;

[0078] It should be understood that the size of each part shown in the accompanying drawings is not drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION

[0079] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0080] The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0081] In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other device without an intermediate device, or may not be directly connected to the other device but have an intermediate device.

[0082] All terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0083] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0084] In some related technologies, the road-rail dual-purpose vehicle 5 often needs to cross from one side of the track to the adjacent railway track line during rescue and railway maintenance operations, and there is a drainage ditch between the two adjacent railway track lines, and the depth and width of the drainage ditch vary depending on regional differences. When crossing the line, the road-rail dual-purpose vehicle 5 first approaches the drainage ditch, with the direction of the vehicle body parallel to the direction of the drainage ditch, and then extends the horizontal legs on the vehicle near the drainage ditch side until the horizontal legs cross the drainage ditch, and then extends the vertical legs on the left and right sides of the road-rail dual-purpose vehicle 5 downward to lift the vehicle until the tires are about 100mm off the ground. At this time, the four vertical legs lift the vehicle off the ground, and finally operate the horizontal legs to extend and retract. The road-rail dual-purpose vehicle 5 off the ground is subjected to the reaction force of the horizontal leg cylinder to achieve lateral sliding along the legs.

[0085] In the related art, the road-rail dual-purpose vehicle 5 is lifted up by the outriggers, and then the outriggers on both sides are extended and retracted to achieve the lateral translation of the vehicle. During the extension and retraction of the outriggers, the forces on the outriggers change all the time, and the friction generated with the ground is affected by the hardness of the ground and the friction coefficient of the ground surface. When the friction generated by one of the outriggers with the ground is not enough to overcome the thrust of the outrigger, the outrigger will slide on the ground, causing the lateral translation of the whole vehicle to fail.

[0086] In view of this, the embodiments of the present disclosure provide a leg support device, a road-rail dual-purpose vehicle 5, and a method for limiting the position of the road-rail dual-purpose vehicle 5. Figure 1 The leg device includes: a leg mechanism 1 and a telescopic rod limiting device, and the telescopic rod limiting device is light in weight. The leg mechanism 1 includes a first telescopic leg 12 and a second telescopic leg 13, and the first telescopic leg 12 and the second telescopic leg 13 have different extension directions, and the first telescopic leg 12 and the second telescopic leg 13 both have a first limiting portion. The telescopic rod limiting device includes: a telescopic rod mechanism 2 and a locking mechanism 3, and both ends of the telescopic rod mechanism 2 have a second limiting portion 21 corresponding to the first limiting portion, and the locking mechanism 3 is detachably connected to the first limiting portion and the second limiting portion 21, so as to limit the relative position between the first telescopic leg 12 and the second telescopic leg 13 through the telescopic rod mechanism 2.

[0087] In this embodiment, a telescopic rod limiting device is provided. When the leg mechanism 1 needs to be locked, the locking mechanism 3 is connected to both the first limiting portion and the second limiting portion 21, so that the telescopic rod limiting device is fixed to the leg mechanism 1, and the width size of the first telescopic leg 12 and the second telescopic leg 13 is locked, so as to limit the relative movement of the first telescopic leg 12 and the second telescopic leg 13, thereby preventing the leg mechanism 1 from sliding and extending outward when the road-rail dual-purpose vehicle 5 moves horizontally, and improving the stability and reliability of the operation. In the case where it is not necessary to lock the leg mechanism 1, the restriction on the relative movement of the first telescopic leg 12 and the second telescopic leg 13 can be released by separating the locking mechanism 3 from the first limiting portion and the second limiting portion 21, which has high operational flexibility and simplicity.

[0088] In some embodiments, the leg mechanism 1 further includes an oil cylinder for driving at least one of the first telescopic leg 12 and the second telescopic leg 13. In this embodiment, after the telescopic rod limiting device locks the relative positions of the first telescopic leg 12 and the second telescopic leg 13, the horizontal movement of the road-rail dual-use vehicle 5 can be achieved by driving only one side of the oil cylinder, and the relative positions of the first telescopic leg 12 and the second telescopic leg 13 can be limited during the vehicle sliding process, which can improve the reliability and success rate of the road-rail dual-use vehicle 5 when it is translated.

[0089] refer to Figure 1 In some embodiments, the leg mechanism 1 further includes a leg box 11 for accommodating a first telescopic leg 12 and a second telescopic leg 13. The telescopic rod limiting device further includes a rotating mechanism 4, which is disposed on the upper portion of the leg box 11 and is configured to carry the telescopic rod mechanism 2 and rotate with the rotation of the telescopic rod mechanism 2. The rotating mechanism 4 includes but is not limited to being bolted to the leg box 11.

[0090] In this embodiment, when the road-rail dual-purpose vehicle 5 moves horizontally, the telescopic rod mechanism 2 will rotate accordingly. The support of the rotating mechanism 4 can avoid interference between the telescopic rod mechanism and the leg mechanism 1 during the rotation process. The rotation angle can also be automatically adjusted according to the different extension lengths of the telescopic rod mechanism 2, thereby achieving higher flexibility and operability.

[0091] refer to Figure 2-Figure 4 In some embodiments, the rotating mechanism 4 includes: a rotating portion 41 and a supporting portion 42. The rotating portion 41 includes a rotating shaft 411, and the supporting portion 42 includes a seat ring hole 421 corresponding to the rotating shaft 411. The rotating portion 41 is inserted into the seat ring hole 421 of the supporting portion 42 through the rotating shaft 411, so that the rotating portion 41 rotates with the rotation of the telescopic rod mechanism 2.

[0092] In this embodiment, a modular design is adopted, the support part 42 is fixedly connected to the leg box 11, and the rotating shaft 411 cooperates with the seat ring hole 421 to realize the horizontal rotation of the rotating part 41. The structure is convenient and flexible to disassemble and assemble, and has strong operability.

[0093] refer to Figure 2-Figure 4 In some embodiments, the rotating mechanism 4 further includes a plurality of locking devices 43, which are detachably connected to the rotating portion 41 and the supporting portion 42. When the rotating mechanism 4 is connected to the rotating portion 41 and the supporting portion 42 at the same time, the relative movement of the rotating portion 41 and the supporting portion 42 is restricted; when the rotating mechanism 4 is connected only to the rotating portion 41, the restriction on the rotating portion 41 is released so that the rotating portion 41 rotates relative to the supporting portion 42 as the telescopic rod mechanism 2 rotates.

[0094] In this embodiment, when the road-rail dual-use vehicle 5 needs to be moved horizontally, the locking device 43 is connected only to the rotating part 41, so that the rotating part 41 can rotate along with the rotation of the telescopic rod mechanism 2. When the road-rail dual-use vehicle 5 does not need to be moved horizontally, the rotating part 41 and the supporting part 42 can be connected by the locking device 43 to lock the relative rotation of the rotating part 41 and the supporting part 42.

[0095] refer to Figure 2-Figure 4 In some embodiments, the locking device 43 includes a first locking portion 431, a second locking portion 432 and a third locking portion 433, the second locking portion 432 is arranged at the first end of the first locking portion 431, and the third locking portion 433 is arranged at the second end of the first locking portion 431, and the rotating portion 41 also includes a plurality of first locking holes 412, the number of the first locking holes 412 includes but is not limited to 2, and they are arranged diagonally on the rotating portion 41. The first locking portion 431 includes but is not limited to being welded to the second locking portion 432 and the third locking portion 433, the first locking portion 431 includes but is not limited to being arranged vertically with the second locking portion 432, and the third locking portion 433 includes but is not limited to being a latch structure.

[0096] The support portion 42 also includes a plurality of second locking holes 422, the projection of the first locking hole 412 on the support portion 42 coincides with the second locking hole 422, and the locking device 43 is configured to limit the relative movement of the rotating portion 41 and the support portion 42 when the second locking portion 432 passes through the first locking hole 412 to connect with the rotating portion 41 and the third locking portion 433 passes through the second locking hole 422 to connect with the support portion 42.

[0097] In this embodiment, when the road-rail dual-use vehicle 5 does not move horizontally, the rotating mechanism 4 can be locked, and the second locking portion 432 of the locking device 43 is passed through the first locking hole 412 so that the second locking portion 432 overlaps the rotating portion 41, and the third locking portion 433 of the locking device 43 is passed through the second locking hole 422 to be connected to the supporting portion 42. At this time, the relative rotation of the rotating portion 41 on the supporting portion 42 can be limited by the cooperation of multiple locking devices 43 with the second locking portion 432 and the third locking portion 433.

[0098] When the road-rail dual-purpose vehicle 5 needs to move horizontally, the locking device 43 is taken out from the first locking hole 412 and the second locking hole 422 to unlock the relative movement of the rotating part 41 and the supporting part 42. The rotating mechanism in this embodiment adopts a modular design, and each device and connecting member has a simple structure, light weight, easy disassembly and assembly, and strong operability.

[0099] refer to Figure 2-Figure 4 In some embodiments, the rotating part 41 further includes a lap plate 413, which includes but is not limited to being vertically arranged, and an opening that cooperates with the second locking part 432 may be arranged on the lap plate 413, and is configured to carry the second locking part 432. The locking device 43 is further configured so that when the second locking part 432 is overlapped on the lap plate 413 and the third locking part 433 is disengaged from the second locking hole 422, the rotating part 41 rotates relative to the supporting part 42 along with the rotation of the telescopic rod mechanism 2. In this embodiment, by arranging the lap plate 413 on the rotating part 41, it is convenient to make the cooperation between the second locking part 432 and the rotating part 41 more flexible and convenient to operate when unlocking the rotating mechanism 4.

[0100] refer to Figure 2-Figure 4 In some embodiments, the rotating portion 41 further includes a bearing member 414 configured to bear the telescopic rod mechanism 2, wherein the bearing member 414 includes but is not limited to a U-shaped structure that matches the shape of the telescopic rod mechanism 2, and the bearing member 414 is detachably connected to the telescopic rod mechanism 2. In this embodiment, by arranging the bearing member 414 to match the telescopic rod mechanism 2, a more stable and reliable support can be achieved, and the rotating mechanism 4 can be more flexible with the rotation of the telescopic rod mechanism 2.

[0101] refer to Figure 5-Figure 6 In some embodiments, the locking mechanism 3 includes a plug bolt 31 and a support rod 32. Both the plug bolt 31 and the support rod 32 may be provided with a gripping portion for easy disassembly and assembly by an operator. The support rod 32 has a hollow cavity 321 on a side close to the plug bolt 31. The bottom diameter of the support rod 32 matches the size of the first limit portion so as to achieve a stable connection with the leg mechanism 1.

[0102] The second limiting portion 21 includes a sleeve, and when the plug bolt 31 is configured to pass through the sleeve and insert into the hollow cavity 321 of the support rod 32, the lower end surface of the sleeve abuts against the upper end surface of the support rod 32, and the upper end surface of the sleeve abuts against the plug bolt 31, so as to limit the relative position between the first telescopic leg 12 and the second telescopic leg 13 through the telescopic rod mechanism 2.

[0103] In this embodiment, by setting a structure that cooperates with the support rod 32 and the plug bolt 31, the connection points of the telescopic rod mechanism 2, the locking mechanism 3 and the leg mechanism 1 can be in the same plane as the telescopic rod mechanism 2, so that the telescopic rod mechanism 2 is subjected to more balanced force and a more stable and reliable limit is achieved.

[0104] refer to Figure 5-Figure 7 In some embodiments, the first limiting portion includes a first limiting hole, the second limiting portion 21 includes a sleeve, and the locking mechanism 3 is configured to pass through the sleeve and be inserted into the first limiting hole so as to limit the relative position between the first telescopic leg 12 and the second telescopic leg 13 through the telescopic rod mechanism 2.

[0105] In this embodiment, the locking mechanism 3 is inserted into the first limiting hole to achieve the connection and locking of the telescopic rod mechanism 2, the locking mechanism 3 and the leg mechanism 1. In this embodiment, each mechanism is light in weight and flexible in coordination. The operator can complete the disassembly and assembly without using additional tools, and the operability is strong.

[0106] refer to Figure 6-Figure 8 In some embodiments, the telescopic rod mechanism 2 includes a plurality of telescopic rods 22 of different diameters and a plurality of connecting members 23. The telescopic rod 22 of smaller diameter can be telescopically slid inside the telescopic rod 22 of larger diameter. At least one telescopic rod 22 has a plurality of first connecting holes 221. The plurality of connecting members 23 are configured to adjust and limit the length of the telescopic rod mechanism 2 by connecting the first connecting holes 221 on the adjacent and nested plurality of telescopic rods 22. The weight of each telescopic rod 22 is less than 15 kg. The first connecting holes 221 include but are not limited to being symmetrically distributed about the midpoint of the telescopic rod 22.

[0107] In this embodiment, both ends of the telescopic rod 22 with the largest diameter can be connected to the telescopic rod 22 with a smaller diameter, and the telescopic rod 22 with a smaller diameter can be sleeved in the telescopic rod 22 with a larger diameter in turn, so as to adjust the length of the telescopic rod mechanism 2 according to the actual situation. The maximum length of the telescopic rod mechanism 2 corresponds to the maximum span of the leg mechanism 1, and the minimum length of the telescopic rod mechanism 2 is less than the width of the road-rail dual-purpose vehicle 5.

[0108] The telescopic rod mechanism 2 in this embodiment can adjust the length according to needs, and the connection between the telescopic rods 22 of different diameters at each level is simple and easy to operate, which facilitates the rapid disassembly of the telescopic rod mechanism 2, avoiding the telescopic rod mechanism 2 occupying too much space on the road-rail dual-purpose vehicle 5 and the inconvenience of taking and placing.

[0109] refer to Figure 1 and Figure 6 In some embodiments, the telescopic rod limiting device further includes a rotating mechanism 4, which is disposed on the upper portion of the leg box 11 and is configured to carry the telescopic rod mechanism 2 and rotate with the rotation of the telescopic rod mechanism 2. The telescopic rod 22 with the largest diameter among the multiple telescopic rods 22 is connected with the rotating mechanism 4, and the second limiting portion 21 is located at the end of the telescopic rod 22 with the smallest diameter among the multiple telescopic rods 22, so that the telescopic rod 22 with the smallest diameter is connected to the first telescopic leg 12 or the second telescopic leg 13. The rotating portion 441 may be provided with a connection position that cooperates with the first connection hole 221, and the rotating portion 441 includes but is not limited to being connected with the pin shaft of the telescopic rod mechanism 2 to form a more stable fit.

[0110] In this embodiment, the telescopic rod 22 with the largest diameter is connected to the rotating mechanism 4, and the end of the telescopic rod 22 with the smallest diameter cooperates with the second limiting portion 21, so that the telescopic rod mechanism 2 is stably stressed and can withstand greater bending moments.

[0111] In another aspect of the present disclosure, reference Fig. 9 , a road-rail dual-purpose vehicle 5 is provided, comprising any of the above-mentioned outrigger devices. The road-rail dual-purpose vehicle 5 includes but is not limited to a road-rail dual-purpose crane. The road-rail dual-purpose vehicle 5 in this embodiment can prevent the outrigger mechanism 1 from sliding and extending outward when moving horizontally across the line, thereby achieving stable and reliable translation, and the outrigger device used in the road-rail dual-purpose vehicle 5 is simple to operate, flexible, and easy to disassemble and assemble.

[0112] In some embodiments, the road-rail dual-purpose vehicle 5 includes a chassis, and at least one of the first telescopic leg 12 or the second telescopic leg 13 is driven by a cylinder, so that the chassis moves horizontally with the extension and retraction of the first telescopic leg 12 or the second telescopic leg 13. In this embodiment, only one side of the cylinder needs to be driven to achieve horizontal cross-line movement of the road-rail dual-purpose vehicle 5.

[0113] In another aspect of the present disclosure, a method for adjusting the position of the above-mentioned road-rail dual-purpose vehicle 5 is provided, comprising: moving the leg mechanism 1 to a specified position, connecting the telescopic rod mechanism 2 to the leg mechanism 1, and driving the oil cylinder to extend and retract the first telescopic leg 12 or the second telescopic leg 13, so that the chassis moves horizontally accordingly.

[0114] In this embodiment, the telescopic rod mechanism 2 is fixed to the leg mechanism 1 to limit the relative movement of the first telescopic leg 12 and the second telescopic leg 13, thereby avoiding the slippage of the leg mechanism 1 when the road-rail dual-purpose vehicle 5 moves horizontally, thereby improving the stability and reliability of the operation.

[0115] In some embodiments, the operation of connecting the telescopic rod mechanism 2 to the leg mechanism 1 includes: adjusting and limiting the length of the telescopic rod mechanism 2 so that the second limiting portions 21 at both ends of the telescopic rod mechanism 2 are respectively aligned with the first limiting portions on the first telescopic leg 1212 and the second telescopic leg 1313. The first limiting portion and the second limiting portion 21 are connected by the locking mechanism 3 so that the relative position between the first telescopic leg 12 and the second telescopic leg 13 is limited by the telescopic rod mechanism 2.

[0116] In this embodiment, the length of the telescopic rod mechanism 2 can be adjusted according to the actual cross-line length so that it corresponds to the width of the leg mechanism 1, and the relative movement between the first telescopic leg 12 and the second telescopic leg 13 is locked by connecting the locking mechanism 3 with the first limiting portion and the second limiting portion 21. The operation is simple and convenient for disassembly and assembly.

[0117] In some embodiments, the telescopic rod mechanism 2 includes a plurality of telescopic rods 22 of different diameters and a plurality of connecting members 23, and at least one telescopic rod has a plurality of first connecting holes 221. The operation of adjusting and limiting the length of the telescopic rod mechanism 2 specifically includes: adjusting the plurality of telescopic rods 22 of different diameters to a length corresponding to the legs, inserting the connecting members 23 into the aligned first connecting holes 221 of adjacent and nested telescopic rods 22, so as to combine the plurality of telescopic rods 22 of different diameters.

[0118] In this embodiment, the length adjustment of the telescopic rod mechanism 2 is achieved by combining and connecting multiple telescopic rods 22 with different diameters. The connection is reliable and easy to operate, avoiding the telescopic rod mechanism 2 occupying too much space on the road-rail dual-purpose vehicle 5 and being inconvenient to take and put.

[0119] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0120] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A leg support device, characterized in that: include: A leg mechanism (1) and a telescopic rod limiting device; wherein the leg mechanism (1) comprises a first telescopic leg (12) and a second telescopic leg (13), and the first telescopic leg (12) and the second telescopic leg (13) both have a first limiting portion; The telescopic rod limiting device comprises: A telescopic rod mechanism (2), wherein both ends of the telescopic rod mechanism (2) are provided with a second limiting portion (21) corresponding to the first limiting portion; a locking mechanism (3) detachably connected to the first limiting portion and the second limiting portion (21), so as to limit the relative position between the first telescopic leg (12) and the second telescopic leg (13) through the telescopic rod mechanism (2); Wherein, the locking mechanism (3) comprises: a plug (31); and A support rod (32), wherein the support rod (32) has a hollow cavity (321) on a side close to the plug bolt (31); The second limiting portion (21) comprises a sleeve; The plug bolt (31) is configured such that when the plug bolt (31) passes through the sleeve and is inserted into the hollow cavity (321) of the support rod (32), the lower end surface of the sleeve abuts against the upper end surface of the support rod (32), and the upper end surface of the sleeve abuts against the plug bolt (31), so as to limit the relative position between the first telescopic leg (12) and the second telescopic leg (13) through the telescopic rod mechanism (2).

2. The leg support device according to claim 1, characterized in that: The leg mechanism (1) further comprises an oil cylinder, which is used to drive at least one of the first telescopic leg (12) and the second telescopic leg (13).

3. The leg support device according to claim 1, characterized in that: The leg support mechanism (1) further comprises: A leg box (11) for accommodating the first telescopic leg (12) and the second telescopic leg (13); The telescopic rod limiting device also includes: The rotating mechanism (4) is arranged on the upper part of the leg box (11) and is configured to carry the telescopic rod mechanism (2) and rotate along with the rotation of the telescopic rod mechanism (2).

4. The leg support device according to claim 3, characterized in that: The rotating mechanism (4) comprises: The rotating part (41) comprises a rotating shaft (411); A support portion (42) comprising a seat ring hole (421) corresponding to the rotating shaft (411); The rotating part (41) is inserted into the seat ring hole (421) of the supporting part (42) via the rotating shaft (411), so that the rotating part (41) rotates along with the rotation of the telescopic rod mechanism (2).

5. The leg support device according to claim 4, characterized in that: The rotating mechanism (4) further comprises: A plurality of locking devices (43) are detachably connected to the rotating portion (41) and the supporting portion (42), and the plurality of locking devices (43) are configured as follows: When the rotating part (41) and the supporting part (42) are connected simultaneously, the relative movement between the rotating part (41) and the supporting part (42) is restricted; When connected only to the rotating part (41), the restriction on the rotating part (41) is released, so that the rotating part (41) rotates relative to the supporting part (42) along with the rotation of the telescopic rod mechanism (2).

6. The leg support device according to claim 5, characterized in that: The locking device (43) comprises: A first locking portion (431); A second locking portion (432) is arranged at a first end of the first locking portion (431); and A third locking portion (433), arranged at the second end of the first locking portion (431); Wherein, the rotating portion (41) further comprises a plurality of first locking holes (412); The support portion (42) further comprises a plurality of second locking holes (422), wherein a projection of the first locking hole (412) on the support portion (42) coincides with the second locking hole (422); Wherein, the locking device (43) is configured as follows: When the second locking portion (432) passes through the first locking hole (412) to be connected to the rotating portion (41) and the third locking portion (433) passes through the second locking hole (422) to be connected to the supporting portion (42), relative movement between the rotating portion (41) and the supporting portion (42) is restricted.

7. The leg support device according to claim 6, characterized in that: The rotating part (41) further comprises: A lap plate (413) configured to carry the second locking portion (432); Wherein, the locking device (43) is further configured as follows: When the second locking portion (432) overlaps the overlapping plate (413) and the third locking portion (433) is disengaged from the second locking hole (422), the rotating portion (41) rotates relative to the supporting portion (42) as the telescopic rod mechanism (2) rotates.

8. The leg support device according to claim 4, characterized in that: The rotating part (41) further comprises: A bearing member (414) configured to bear the telescopic rod mechanism (2); Wherein, the bearing member (414) is detachably connected to the telescopic rod mechanism (2).

9. The leg support device according to claim 1, characterized in that: The first limiting portion includes a first limiting hole; The locking mechanism (3) is configured to pass through the sleeve and be inserted into the first limiting hole, so as to limit the relative position between the first telescopic leg (12) and the second telescopic leg (13) through the telescopic rod mechanism (2).

10. The leg support device according to claim 1, characterized in that: The telescopic rod mechanism (2) comprises: a plurality of telescopic rods (22) of different diameters and a plurality of connecting members (23), wherein at least one telescopic rod (22) has a plurality of first connecting holes (221), and the plurality of connecting members (23) are configured to achieve adjustment and limitation of the length of the telescopic rod mechanism (2) by connecting with the first connecting holes (221) on adjacent and nested telescopic rods (22).

11. The leg support device according to claim 10, characterized in that: The telescopic rod limiting device also includes: A rotating mechanism (4), arranged on the upper part of the leg box (11), configured to carry the telescopic rod mechanism (2) and rotate along with the rotation of the telescopic rod mechanism (2); Wherein, the telescopic rod (22) with the largest diameter among the plurality of telescopic rods (22) is connected to the rotating mechanism (4); The second limiting portion (21) is located at the end of the telescopic rod (22) with the smallest diameter among the plurality of telescopic rods (22), so that the telescopic rod (22) with the smallest diameter is connected to the first telescopic leg (12) or the second telescopic leg (13).

12. A road-rail dual-purpose vehicle (5), characterized in that: Comprising a leg device as claimed in any one of claims 1 to 11.

13. The road-rail vehicle (5) according to claim 12, characterized in that: The road-rail dual-purpose vehicle (5) comprises a chassis, wherein at least one of the first telescopic leg (12) or the second telescopic leg (13) is driven by a cylinder so that the chassis moves horizontally as the first telescopic leg (12) or the second telescopic leg (13) is extended or retracted.

14. A method for adjusting the position of a road-rail vehicle (5) as claimed in claim 13, characterized in that: include: Moving the leg mechanism (1) to a specified position; Connecting the telescopic rod mechanism (2) to the leg mechanism (1); The oil cylinder is driven to extend or retract the first telescopic leg (12) or the second telescopic leg (13), so that the chassis moves horizontally accordingly.

15. The method for adjusting the position of a road-rail vehicle (5) according to claim 14, characterized in that: The operation of connecting the telescopic rod mechanism (2) to the leg mechanism (1) comprises: Adjusting and limiting the length of the telescopic rod mechanism (2) so that the second limiting portions (21) at both ends of the telescopic rod mechanism (2) are aligned with the first limiting portions on the first telescopic leg (12) and the second telescopic leg (13), respectively; The first limiting portion and the second limiting portion (21) are connected via the locking mechanism (3), so as to limit the relative position between the first telescopic leg (12) and the second telescopic leg (13) via the telescopic rod mechanism (2).

16. The method for adjusting the position of a road-rail vehicle (5) according to claim 15, characterized in that: The telescopic rod mechanism (2) comprises: A plurality of telescopic rods (22) having different diameters and a plurality of connecting members (23), wherein at least one telescopic rod (22) has a plurality of first connecting holes (221); The operation of adjusting and limiting the length of the telescopic rod mechanism (2) specifically includes: Adjusting the plurality of telescopic rods (22) having different diameters to a length corresponding to the leg mechanism (1); The connecting piece (23) is inserted into the first connecting hole (221) on the adjacent and nested telescopic rods (22) to combine a plurality of telescopic rods (22) having different diameters.

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