Landing leg control device and crane

Abstract

The utility model discloses a supporting leg control device and a crane. The landing leg control device comprises a multi-way valve arranged on the first side of the frame; the first operation assembly is connected with the multi-way valve; the second operation assembly is arranged on the second side of the frame; one end of the control flexible shaft assembly is connected with the second operation assembly, and the other end is connected with the multi-way valve; the control flexible shaft assembly is arranged in a bent mode to form an avoiding space for avoiding the frame. As mentioned above, the arrangement positions of the two ends, corresponding to the first operation assembly and the second operation assembly, of the control flexible shaft assembly are not limited any more, and no matter the two ends of the control flexible shaft assembly are arranged at any positions of the two sides of the vehicle frame. The control flexible shaft assembly can extend to the second side of the frame from the first side of the frame through the outer surface of the frame in an attached mode through the flexible deformation of the control flexible shaft assembly, the control flexible shaft assembly does not need to be arranged at the bottom of the frame in a limited mode, and the middle of the frame does not need to be perforated to pass through.

Description

Technical Field

[0001] The present application relates to the technical field of heavy machinery, and more specifically to an outrigger control device, and also to a crane including the outrigger control device. Background Art

[0002] At present, in the outrigger control device used on the truck crane, a two-force joystick is generally used, one end of the joystick is connected to the multi-way valve, and the other end is connected to the operating handle. In the process of operating the multi-way valve by driving the joystick with the operating handle, the joystick has left and right and up and down movements. Since the joystick is a straight rigid part, it cannot turn and can only pass through the bottom of the frame or through a hole in the middle of the frame. When the operating rod passes through the bottom of the frame, the setting position of the operating rod will be very low and not in line with ergonomics; when a hole is opened in the middle of the frame and the operating rod passes through the middle of the frame, the hole in the frame will affect the strength of the frame, and there is a risk of cracking at the hole, or some frames have complex internal structures and cannot be opened. Utility Model Content

[0003] In view of this, the present application provides an outrigger control device and also provides a crane having the above-mentioned outrigger control device, which solves a series of disadvantages caused by the fact that the structural member connecting the multi-way valve and the operating handle on the opposite side of the multi-way valve in the outrigger control device is a joystick.

[0004] In order to achieve the above objectives, this application provides the following technical solutions:

[0005] A leg control device, used for controlling the movements of the legs on both sides of a frame, comprises:

[0006] a multi-way valve, disposed on a first side of the frame;

[0007] A first operating assembly, located at a first side of the frame and connected to the multi-way valve;

[0008] a second operating assembly disposed on a second side of the frame opposite to the first side;

[0009] A control flexible shaft assembly has one end connected to the second operating assembly and the other end connected to the multi-way valve; the control flexible shaft assembly is bent to form an avoidance space for avoiding the frame.

[0010] Optionally, in the above-mentioned outrigger control device, the outrigger control device includes a first limit member and a second limit member;

[0011] The first operating assembly includes a first left operating member and a first right operating member, and the first limiting member limits at least part of the operation of the first right operating member on the multi-way valve, so that the first right operating member located on the first side of the frame no longer drives the support leg located on the second side of the frame to move in the horizontal direction;

[0012] The second operating assembly includes a second left-side operating member and a second right-side operating member, and the second limiting member limits at least part of the operation of the multi-way valve by the second left-side operating member so that the second left-side operating member located on the second side of the frame no longer drives the support leg located on the first side of the frame to move in the horizontal direction.

[0013] Optionally, in the above-mentioned outrigger control device,

[0014] The first limiting member is formed above the first right operating member to limit the operation of the multi-way valve caused by the upward movement of the first right operating member;

[0015] The second limiting member is formed above the second left operating member to limit the operation of the multi-way valve caused by the upward movement of the second left operating member.

[0016] Optionally, in the above-mentioned outrigger control device,

[0017] The outrigger control device comprises:

[0018] A first fixing bracket, used for fixing the multi-way valve to the vehicle frame;

[0019] The second fixing bracket is used to fix the second operating assembly to the vehicle frame.

[0020] Optionally, in the above-mentioned outrigger control device,

[0021] The first fixed bracket is provided with a first flexible shaft stopper, and the control flexible shaft assembly is limitatively connected to the first flexible shaft stopper to limit the control flexible shaft assembly from moving along its axis direction;

[0022] The second fixing bracket is provided with a second flexible shaft limiting member, and the control flexible shaft assembly is limitedly connected to the second flexible shaft limiting member to limit the control flexible shaft assembly from moving along its axial direction.

[0023] Optionally, in the above-mentioned outrigger control device,

[0024] The first flexible shaft limiting member is provided with a first adjusting member capable of adjusting the position thereof, and the control flexible shaft assembly is limitedly connected to the first adjusting member;

[0025] The second flexible shaft limiting member is provided with a second adjusting member capable of adjusting the position thereof, and the control flexible shaft assembly is limitedly connected to the second adjusting member.

[0026] Optionally, in the above-mentioned outrigger control device,

[0027] The first flexible shaft limiting member is provided with a first extending hole extending in the up-down direction, and the first adjusting member is movably limited and connected to the first extending hole;

[0028] The second flexible shaft limiting member is provided with a second extending hole extending in the up-down direction, and the second adjusting member is movably limited and connected to the second extending hole.

[0029] Optionally, in the above-mentioned outrigger control device,

[0030] The first adjusting member includes a first bolt and a first nut, the first bolt extends out of the first extension hole, the first nut is threadedly connected to the portion of the first bolt extending out of the first extension hole, the first bolt and the first nut are provided with a first through hole, and the control flexible shaft assembly is sleeved in the first through hole;

[0031] The second adjusting member includes a second bolt and a second nut, the second bolt extends out of the second extension hole, the second nut is threadedly connected to the portion of the second bolt extending out of the second extension hole, a second through hole is formed on the second bolt and the second nut, and the control flexible shaft assembly is sleeved in the second through hole.

[0032] Optionally, in the above-mentioned outrigger control device,

[0033] The first end of the control flexible shaft assembly is provided with a first connector, and the first connector is adapted to be installed on the multi-way valve;

[0034] The second end of the control flexible shaft assembly is provided with a second joint, and the second joint is adapted to be installed on the second operating assembly.

[0035] A crane comprises the outrigger control device described above.

[0036] In the outrigger control device and crane provided by the present application, the multi-way valve and the second operating component on the opposite side of the multi-way valve are connected by a control flexible shaft assembly; since the control flexible shaft assembly can be bent to form an avoidance space for avoiding the frame, there is no limitation on the setting positions of the two ends of the control flexible shaft assembly corresponding to the first operating component and the second operating component respectively. Regardless of where the two ends of the control flexible shaft assembly are respectively set on both sides of the frame, the control flexible shaft assembly can utilize its own flexible deformation to extend from the first side of the frame through the outer surface of the frame to the second side of the frame. The control flexible shaft assembly does not need to be set only in a limited and straight manner at the bottom of the frame, nor does it need to be opened in the middle of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0038] Figure 1 This is a schematic diagram of the structure of the outrigger control device of this application;

[0039] Figure 2 This is a schematic diagram of the structure of the leg control device of the present application, which is close to the first side of the frame;

[0040] Figure 3 This is a schematic diagram of the structure of the leg control device of the present application, which is close to the second side of the frame.

[0041] Figure 1-Figure 3 middle:

[0042] 1. Multi-way valve; 2. First operating assembly; 3. Second operating assembly; 4. Control flexible shaft assembly; 5. First stopper; 6. Second stopper; 7. First fixing bracket; 8. Second fixing bracket; 9. First connector; 10. Second connector;

[0043] 21. First left side operating member; 22. First right side operating member; 23. First front side operating member; 24. First throttle operating member;

[0044] 31. second left side operating member; 32. second right side operating member; 33. second front side operating member; 34. second throttle operating member;

[0045] 71. First flexible shaft limiting member; 72. First adjusting member;

[0046] 81. Second flexible shaft limiting member; 82. Second adjusting member; 83. Limiting connecting plate;

[0047] 711. The first waist-shaped hole. DETAILED DESCRIPTION

[0048] The present application provides an outrigger control device and also provides a crane including the outrigger control device.

[0049] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] like Figure 1-3 As shown, a leg control device is used to control the leg movements on both sides of the frame. The leg control device includes a multi-way valve 1, a first operating component 2, a second operating component 3, and a control flexible shaft component 4. The multi-way valve 1 is arranged on the first side of the frame. The first operating component 2 is located on the first side of the frame and is connected to the multi-way valve 1. The second operating component 3 is arranged on the second side of the frame opposite to the first side. One end of the control flexible shaft component 4 is connected to the second operating component 3, and the other end is connected to the multi-way valve 1; the control flexible shaft component 4 is bent to form an avoidance space for avoiding the frame.

[0051] It should be noted that the first operating assembly 2 includes a plurality of first operating members arranged in parallel; the first operating member is a rotating handle that can be rotated upward or downward. The second operating assembly 3 includes a plurality of second operating members arranged in parallel; the second operating member is a rotating handle that can be rotated upward or downward. The control flexible shaft assembly 4 includes a plurality of flexible shafts arranged in parallel; the plurality of first operating members, the plurality of second operating members, and the plurality of flexible shafts are arranged in a one-to-one matching manner.

[0052] The multi-way valve 1 is directly operated by the first operating component 2, so that the operator stands on the first side of the frame to control the outriggers arranged on the frame. The second operating component 3 drives the control flexible shaft component 4 to move, and then the multi-way valve 1 is operated by the control flexible shaft component 4, so that the operator stands on the second side of the frame to control the outriggers arranged on the frame.

[0053] Since the control flexible shaft assembly 4 can be bent to form an avoidance space for avoiding the frame, there is no limitation on the setting positions of the two ends of the control flexible shaft assembly 4 corresponding to the first operating assembly 2 and the second operating assembly 3. No matter where the two ends of the control flexible shaft assembly 4 are respectively set on both sides of the frame, the control flexible shaft assembly 4 can utilize its own flexible deformation to extend from the first side of the frame through the outer surface of the frame to the second side of the frame. The control flexible shaft assembly 4 does not need to be set in a limited and straight manner at the bottom of the frame, nor does it need to be opened in the middle of the frame.

[0054] In certain embodiments of the present application, the outrigger control device includes a first limiting member 5 and a second limiting member 6. The first operating assembly 2 includes a plurality of first operating members; the plurality of first operating members include a first left operating member 21 and a first right operating member 22. The first limiting member 5 limits at least a partial operation of the first right operating member 22 on the multi-way valve 1, so that the first right operating member 22 located on the first side of the frame no longer drives the outrigger located on the second side of the frame to move in the horizontal direction. The second operating assembly 3 includes a plurality of second operating members; the plurality of second operating members include a second left operating member 31 and a second right operating member 32. The second limiting member 6 limits at least a partial operation of the second left operating member 31 on the multi-way valve 1, so that the second left operating member 31 located on the second side of the frame no longer drives the outrigger located on the first side of the frame to move in the horizontal direction.

[0055] It should be noted that according to the attached Figure 1 In the left-right direction indicated by the middle arrow, the first side of the frame is the left side of the frame, and the second side of the frame is the right side of the frame.

[0056] Please see attached Figure 2 The first operating assembly 2 includes six first operating members; the six first operating members are six rotating handles that can be rotated upward or downward.

[0057] The six first operating members include: two first left-side operating members 21, two first right-side operating members 22, one first front-side operating member 23, and one first throttle operating member 24. The two first left-side operating members correspond to the outriggers on the left front side of the frame and the outriggers on the left rear side of the frame, respectively; the two first right-side operating members 22 correspond to the outriggers on the right front side of the frame and the outriggers on the right rear side of the frame, respectively; and the first front-side operating member 23 corresponds to the outriggers on the front side of the frame. Pressing one of the first left-side operating member 21, the first right-side operating member 22, and the first front-side operating member 23 first, and then pressing the first throttle operating member 24, can control the movements of the outriggers corresponding to the first left-side operating member 21, the first right-side operating member 22, and the first front-side operating member 23. Among them: the first left operating member 21, the first right operating member 22, and the first front operating member 23 move upward or downward to respectively control whether the corresponding legs move in the horizontal direction or in the vertical direction; the first throttle operating member 24 moves upward or downward to respectively control whether the corresponding legs move in the selected direction.

[0058] When the operator stands on the left side of the frame (i.e., the first side of the frame), the movement of the outrigger on the right side of the frame (i.e., the second side of the frame) is within the operator's blind spot. At this time, if the outrigger on the right side of the frame is manipulated on the left side of the frame, it may cause certain collision damage to the object on the right side of the frame, especially when the outrigger is extended horizontally, there is a great safety hazard; therefore, for the safety of operation, the operator cannot operate the outrigger on the right side of the frame in the horizontal direction on the left side of the frame. The present application ingeniously sets a first limiter 5 that limits the movement of the first right side operating member 22, and at least the upward movement of the first right side operating member 22 is restricted, so the operator can no longer manipulate the movement of the outrigger on the right side of the frame in the horizontal direction on the left side of the frame, which greatly ensures the safety of the outrigger extension movement.

[0059] Please see attached Figure 3 Similarly, the second operating assembly 3 includes 6 second operating members; the 6 second operating members are 6 rotating handles that can be rotated upward or downward.

[0060] The six second operating members include: two second left-side operating members 31, two second right-side operating members 32, one second front-side operating member 33, and one second throttle operating member 34. The two second left-side operating members 31 correspond to the outriggers on the left front side of the frame and the outriggers on the left rear side of the frame respectively; the two second right-side operating members 22 correspond to the outriggers on the right front side of the frame and the outriggers on the right rear side of the frame respectively; and the second front-side operating member 23 corresponds to the outriggers on the front side of the frame. Pressing one of the second left-side operating member 31, the second right-side operating member 32, and the second front-side operating member 33 first, and then pressing the second throttle operating member 34, can control the movements of the outriggers corresponding to the second left-side operating member 31, the second right-side operating member 32, and the second front-side operating member 33. Among them: the second left operating member 31, the second right operating member 32, and the second front operating member 33 move upward or downward to respectively control whether the corresponding legs move in the horizontal direction or in the vertical direction; the second throttle operating member 34 moves upward or downward to respectively control whether the corresponding legs move in the selected direction.

[0061] When the operator stands on the right side of the frame (i.e., the second side of the frame), the movement of the outrigger on the left side of the frame (i.e., the first side of the frame) is within the operator's blind spot. At this time, if the outrigger on the left side of the frame is manipulated on the right side of the frame, it may cause certain collision damage to the object on the left side of the frame, especially when the outrigger is extended horizontally, there is a great safety hazard; therefore, for the safety of operation, the operator cannot operate the outrigger on the left side of the frame horizontally on the right side of the frame. The present application ingeniously sets a second limiter 6 that limits the movement of the second left operating member 31, and the upward movement of the second left operating member 31 is restricted, so the operator can no longer manipulate the movement of the outrigger on the left side of the frame in the horizontal direction on the right side of the frame, which greatly ensures the safety of the outrigger extension movement.

[0062] In some embodiments, the first limiter 5 can also limit the downward movement of the first right operating member 22; therefore, the operator can no longer control the telescopic movement of the outrigger on the right side of the frame in the vertical direction on the left side of the frame. Further, the second limiter 6 can also limit the downward movement of the second left operating member 31; therefore, the operator can no longer control the telescopic movement of the outrigger on the left side of the frame in the vertical direction on the right side of the frame.

[0063] Since the movement of the outrigger in the vertical direction does not cause a collision risk to the object next to the frame, the telescopic movement of the outrigger on the opposite side in the vertical direction can be controlled on one side of the frame. Therefore, in some embodiments, the first limiter 5 does not limit the downward movement of the first right operating member 22; therefore, the operator can control the telescopic movement of the outrigger on the right side of the frame on the left side of the frame. Further, the second limiter 6 does not limit the downward movement of the second left operating member 31; therefore, the operator can control the telescopic movement of the outrigger on the left side of the frame on the right side of the frame.

[0064] In certain embodiments of the present application, the first limiting member 5 is formed above the first right operating member 22 to limit the operation of the multi-way valve 1 caused by the upward movement of the first right operating member 22 .

[0065] Specifically, the first stopper 5 is a first stopper plate formed on the side of the multi-way valve 1. Due to the existence of the first stopper plate, the first right operating member 22 can no longer rotate upward, but can only rotate downward. As described above, the first stopper 5 has a simple structure and a small size, which is easy to produce and process.

[0066] Furthermore, the second limiting member 6 is formed above the second left operating member 31 to limit the operation of the multi-way valve 1 caused by the upward movement of the second left operating member 31 .

[0067] It should be noted that the outrigger control device includes a second fixing bracket 8; the second operating assembly 3 is fixed to the frame through the second fixing bracket 8. A limiting connecting plate 83 is provided at one end of the second fixing bracket 8 away from the first side of the frame. The second limiting member 6 has a second limiting plate extending downward from the position opposite to the limiting connecting plate 83 and the second left operating member 31; due to the existence of the second limiting plate, the second left operating member 31 can no longer rotate upward, but can only rotate downward.

[0068] Furthermore, the limiting connecting plate 83 and the second limiting plate are integrally connected structural members; the second limiting plate is L-shaped. The L-shaped second limiting plate includes a vertical portion and a horizontal portion, the vertical portion is connected to the limiting connecting plate 83, the horizontal portion extends relative to the vertical portion toward the first side of the frame, and the horizontal portion can limit the freedom of the second left operating member 31 to rotate upward.

[0069] As mentioned above, the second limiting member 6 has a simple structure and a small size, and is easy to produce and process.

[0070] In some embodiments of the present application, the outrigger control device includes a first fixing bracket 7, and the multi-way valve 1 is fixed to the vehicle frame through the first fixing bracket 7. The outrigger control device includes a second fixing bracket 8, and the second operating assembly 3 is fixed to the vehicle frame through the second fixing bracket 8.

[0071] Through the first fixing bracket 7 and the second fixing bracket 8, a fixed connection position for the outrigger control device to be arranged on the frame is provided, and the installation of the outrigger control device is more convenient and quick.

[0072] In some embodiments of the present application, a first flexible shaft stopper 71 is provided on the first fixed bracket 7. The portion of the control flexible shaft assembly 4 close to the first side of the frame is limitedly connected to the first flexible shaft stopper 71 to limit the movement of the control flexible shaft assembly 4 along its axis. A second flexible shaft stopper 81 is provided on the second fixed bracket 8. The portion of the control flexible shaft assembly 4 close to the second side of the frame is limitedly connected to the second flexible shaft stopper 81 to limit the movement of the control flexible shaft assembly 4 along its axis.

[0073] It should be noted that the first flexible shaft limiter 71 includes a plurality of first limit positions that are spaced and arranged in parallel; the plurality of flexible shafts arranged in parallel are limitedly connected to the plurality of first limit positions one by one; and the flexible shaft can move along its axis direction at the first limit position. As described above, the plurality of flexible shafts arranged in parallel in the control flexible shaft assembly 4 are orderly arranged at the first fixed bracket 7, and the plurality of flexible shafts will not be misaligned and entangled as the second operating assembly 3 moves.

[0074] Furthermore, the second flexible shaft stopper 81 includes a plurality of second limit positions that are spaced and arranged in parallel; the plurality of flexible shafts arranged in parallel are limitedly connected to the plurality of second limit positions one by one; and the flexible shaft can move along its axis direction at the second limit position. As described above, the plurality of flexible shafts arranged in parallel in the control flexible shaft assembly 4 are orderly arranged at the second fixed bracket 8, and the plurality of flexible shafts will not be misaligned and entangled as the second operating assembly 3 moves.

[0075] In some embodiments of the present application, a first adjusting member 72 capable of adjusting the position of the first flexible shaft stopper 71 is provided. The control flexible shaft assembly 4 is limitedly connected to the first adjusting member 72. A second adjusting member 82 capable of adjusting the position of the second flexible shaft stopper 81 is provided. The control flexible shaft assembly 4 is limitedly connected to the second adjusting member 82.

[0076] It should be noted that the number of the first adjusting members 72 and the first limiting positions is the same and they are arranged one-to-one; the multiple flexible shafts arranged in parallel in the control flexible shaft assembly 4 are connected to the multiple first adjusting members 72 in an orderly limiting manner one-to-one. Since the first adjusting member 72 can be adjusted relative to the first flexible shaft limiting member 71, the setting position of the flexible shaft can be adjusted by the first adjusting member 72, so that the central axis of the part of the flexible shaft close to the first side of the frame is arranged concentrically with the valve core interface of the multi-way valve 1.

[0077] Furthermore, the number of second adjusting members 82 and second limiting positions is the same, and they are arranged one-to-one; the multiple flexible shafts arranged in parallel in the control flexible shaft assembly 4 are connected to the multiple second adjusting members 82 in an orderly limiting manner one-to-one. Since the second adjusting member 82 can be adjusted relative to the second flexible shaft limiting member 81, the setting position of the flexible shaft can be adjusted by the second adjusting member 82, so that the central axis of the part of the flexible shaft close to the second side of the frame is arranged horizontally with the second operating assembly 3.

[0078] In some embodiments of the present application, a first extension hole extending in the up-down direction is formed on the first flexible shaft stopper 71; the first adjustment member 72 is connected in a limited position in the first extension hole and can move up and down along the first extension hole. A second extension hole extending in the up-down direction is formed on the second flexible shaft stopper 81; the second adjustment member 82 is connected in a limited position in the second extension hole and can move up and down along the second extension hole.

[0079] Please see attached Figure 1 and 2 It should be noted that the first flexible shaft stopper 71 is a plate-like structure. The first extension hole is a first waist-shaped hole 711 opened on the first flexible shaft stopper 71 and opening downward. A plurality of first waist-shaped holes 711 are arranged in parallel and at intervals; the first limiting position is formed in the first waist-shaped hole 711. A plurality of first adjustment members 72 are provided, and are matched one-to-one with the plurality of first waist-shaped holes 711.

[0080] By moving the first adjusting member 72 up and down in the first waist-shaped hole 711 for adjustment, the first adjusting member 72 can drive the portion of the flexible shaft close to the first side of the frame to adjust in the up and down directions quickly and conveniently.

[0081] Further, the second flexible shaft stopper 81 is a plate-shaped structure. The second extension hole is a second waist-shaped hole opened downward on the second flexible shaft stopper 81. A plurality of second waist-shaped holes are arranged in parallel and at intervals; the second limiting position is formed in the second waist-shaped hole. A plurality of second adjustment members 82 are provided, and are matched one-to-one with the plurality of second waist-shaped holes.

[0082] By adjusting the second adjusting member 82 in the second waist-shaped hole by moving it up and down, the second adjusting member 82 can quickly and conveniently adjust the portion of the flexible shaft close to the second side of the frame in the up and down directions.

[0083] In some embodiments of the present application, the first adjusting member 72 includes a first bolt and a first nut; the first bolt extends out of a first extension hole; the first nut is threadedly connected to the portion of the first bolt extending out of the first extension hole; the first bolt and the first nut are provided with a through first through hole; the flexible shaft is sleeved in the first through hole. Further, the second adjusting member 82 includes a second bolt and a second nut; the second bolt extends out of a second extension hole; the second nut is threadedly connected to the portion of the second bolt extending out of the second extension hole; the second bolt and the second nut are provided with a through second through hole; the flexible shaft is sleeved in the second through hole.

[0084] When the threaded connection between the first nut and the first bolt is loosened, the first bolt can move up and down along the first waist-shaped hole 711. After the first bolt is adjusted to a suitable position, the first nut is tightened and threadedly connected to the first bolt. As described above, the position-limiting connection between the flexible shaft and the first bolt and the first nut is realized conveniently and quickly; and the up and down movement adjustment of the first bolt and the first nut in the first waist-shaped hole 711 is very convenient and fast, thereby realizing the convenient and fast adjustment of the flexible shaft in the up and down direction.

[0085] Furthermore, when the threaded connection between the second nut and the second bolt is loosened, the second bolt can move up and down along the second waist-shaped hole. After the second bolt is adjusted to a suitable position, the second nut is tightened and threadedly connected to the second bolt. As described above, the position-limiting connection between the flexible shaft and the second bolt and the second nut is realized conveniently and quickly; and the up and down movement adjustment of the second bolt and the second nut in the second waist-shaped hole is very convenient and fast, thereby realizing the convenient and fast adjustment of the flexible shaft in the up and down direction.

[0086] In some embodiments of the present application, the first end of the control flexible shaft assembly 4 is provided with a first connector 9 adapted to be installed on the valve core connector of the multi-way valve 1. The second end of the control flexible shaft assembly 4 is provided with a second connector 10 adapted to be installed on the second operating assembly 3.

[0087] It should be noted that a first joint 9 is provided at the first end of each flexible shaft, and the first joint 9 is a spherical joint adapted to be connected to the valve core joint of the multi-way valve 1. A second joint 10 is provided at the second end of each flexible shaft, and the second joint 10 is a fork joint plugged into the operating handle of the second operating component 3.

[0088] As described above, the two ends of the control flexible shaft assembly 4 are detachably connected to the multi-way valve 1 and the second operating assembly 3 respectively, which is not only convenient and fast to assemble, but also firmly fixed.

[0089] In summary, the present application also provides a crane; a crane, comprising the outrigger control device described above.

[0090] Since the crane of the present application includes the outrigger control device described above, the beneficial effects of the outrigger control device on the crane can be found above and will not be described in detail here.

[0091] The components and devices involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the drawings. As will be appreciated by those skilled in the art, these components and devices can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, meaning "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The word "such as" used here refers to the phrase "such as but not limited to", and can be used interchangeably with it.

[0092] It should also be noted that in the device of the present application, each component can be decomposed and / or reassembled, and these decompositions and / or reassemblies should be regarded as equivalent solutions of the present application.

[0093] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0094] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

[0095] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A leg control device, characterized in that: Used to control the outrigger movements on both sides of the frame, including: a multi-way valve, disposed on a first side of the frame; A first operating assembly, located at a first side of the frame and connected to the multi-way valve; a second operating assembly disposed on a second side of the frame opposite to the first side; A control flexible shaft assembly has one end connected to the second operating assembly and the other end connected to the multi-way valve; the control flexible shaft assembly is bent to form an avoidance space for avoiding the frame.

2. The outrigger control device according to claim 1, characterized in that: The outrigger control device comprises a first limiter and a second limiter; The first operating assembly includes a first left operating member and a first right operating member, and the first limiting member limits at least part of the operation of the first right operating member on the multi-way valve, so that the first right operating member located on the first side of the frame no longer drives the support leg located on the second side of the frame to move in the horizontal direction; The second operating component includes a second left-side operating member and a second right-side operating member, and the second limiting member limits at least part of the operation of the multi-way valve by the second left-side operating member so that the second left-side operating member located on the second side of the frame no longer drives the support leg located on the first side of the frame to move in the horizontal direction.

3. The outrigger control device according to claim 2, characterized in that: The first limiting member is formed above the first right operating member to limit the operation of the multi-way valve caused by the upward movement of the first right operating member; The second limiting member is formed above the second left operating member to limit the operation of the multi-way valve caused by the upward movement of the second left operating member.

4. The outrigger control device according to claim 1, characterized in that: The outrigger control device comprises: A first fixing bracket, used for fixing the multi-way valve to the vehicle frame; The second fixing bracket is used to fix the second operating assembly to the vehicle frame.

5. The outrigger control device according to claim 4, characterized in that: The first fixed bracket is provided with a first flexible shaft stopper, and the control flexible shaft assembly is limitatively connected to the first flexible shaft stopper to limit the control flexible shaft assembly from moving along its axis direction; The second fixing bracket is provided with a second flexible shaft limiting member, and the control flexible shaft assembly is limitedly connected to the second flexible shaft limiting member to limit the control flexible shaft assembly from moving along its axial direction.

6. The outrigger control device according to claim 5, characterized in that: The first flexible shaft limiting member is provided with a first adjusting member capable of adjusting the position thereof, and the control flexible shaft assembly is limitedly connected to the first adjusting member; The second flexible shaft limiting member is provided with a second adjusting member capable of adjusting the position thereof, and the control flexible shaft assembly is limitedly connected to the second adjusting member.

7. The outrigger control device according to claim 6, characterized in that: The first flexible shaft limiting member is provided with a first extending hole extending in the up-down direction, and the first adjusting member is movably limited and connected to the first extending hole; The second flexible shaft limiting member is provided with a second extending hole extending in the up-down direction, and the second adjusting member is movably limited and connected to the second extending hole.

8. The outrigger control device according to claim 7, characterized in that: The first adjusting member includes a first bolt and a first nut, the first bolt extends out of the first extension hole, the first nut is threadedly connected to the portion of the first bolt extending out of the first extension hole, the first bolt and the first nut are provided with a first through hole, and the control flexible shaft assembly is sleeved in the first through hole; The second adjusting member includes a second bolt and a second nut, the second bolt extends out of the second extension hole, the second nut is threadedly connected to the portion of the second bolt extending out of the second extension hole, a second through hole is formed on the second bolt and the second nut, and the control flexible shaft assembly is sleeved in the second through hole.

9. The outrigger control device according to claim 1, characterized in that: The first end of the control flexible shaft assembly is provided with a first connector, and the first connector is adapted to be installed on the multi-way valve; The second end of the control flexible shaft assembly is provided with a second joint, and the second joint is adapted to be installed on the second operating assembly.

10. A crane, characterized in that: The invention comprises the outrigger control device according to any one of claims 1 to 9.

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