Multi-station dragging rescue operation supporting mechanism

Abstract

The invention provides a multi-station dragging and rescuing operation supporting mechanism. The multi-station dragging and rescuing operation supporting mechanism comprises a supporting arm, a sliding arm, a trail hoe, a swing arm and a driving assembly. According to the multi-station dragging and rescuing operation supporting mechanism, the supporting arm is arranged, and the supporting arm is arranged on the dragging and rescuing vehicle in a hinged mode along the pitching angle. A sliding arm is arranged on the supporting arm in a sliding mode, a trail hoe is detachably installed at the end of the sliding arm, a swing arm is arranged at the bottom of the supporting arm in a hinged mode, and the trail hoe can also be installed at the end of the swing arm. During on-site rescue, the supporting arm can be unfolded from the rescue dragging vehicle and supported on the ground, the position of the sliding arm is adjusted according to the on-site terrain, meanwhile, when a vehicle in the pit is dragged and rescued, the swing arm at the bottom of the supporting arm can be unfolded, and the trail hoe is installed on the swing arm, so that the trail hoe is supported on one side of the rescue dragging vehicle through the swing arm, and the rescue dragging vehicle is convenient to use. In the dragging and rescuing process, the position of the dragging and rescuing vehicle does not need to be moved, and on-site rescuing operation is convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of towing and rescue devices, and in particular relates to a multi-station towing and rescue operation supporting mechanism. Background Art

[0002] After an accident, breakdown or rollover, a tow truck is needed to pull the vehicle to assist the vehicle in moving. At present, when a tow truck is in use, the support mechanism on the tow truck is used to support it on the ground to ensure the stability of the tow truck during the towing process. Sometimes the accident vehicle will roll over into the ditch, and the tow truck will tow the overturned vehicle on the ground. At present, the support arm length of most support mechanisms is fixed, and the position of the support arm can only be adjusted by rotation. Affected by the terrain on site, the support mechanism will overlap the edge of the foundation pit when it is not supported on the side wall of the foundation pit. As a result, it cannot play a supporting role, and the position of the tow truck needs to be adjusted to ensure that the support arm can support the ground. The operation is relatively complicated and inconvenient for on-site operations. Summary of the invention

[0003] The embodiment of the present invention provides a multi-station towing and rescue operation support mechanism, which aims to solve the problem in the prior art that the towing and rescue operation support mechanism is not convenient for arbitrary support according to the on-site terrain when in use.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a multi-station towing and rescue operation support mechanism, comprising:

[0005] A support arm, wherein a length direction of the support arm is defined as a first direction;

[0006] A sliding arm is slidably disposed on the support arm along the first direction, and one end of the sliding arm extends out of the support arm;

[0007] A hoe is detachably mounted on one end of the sliding arm located outside the supporting arm;

[0008] A swing arm is mounted at the bottom of the support arm, the position of the swing arm on the support arm has a degree of freedom for adjustment along the pitch angle, and one end of the swing arm away from the support arm is detachably connected to the hoe stop;

[0009] A driving assembly is installed between the support arm and the sliding arm, and is used to push the sliding arm to move on the support arm.

[0010] In a possible implementation, a movable frame is also slidably provided on the support arm along the first direction, a support rod is hingedly provided in the middle of the movable frame, the other end of the support rod is hingedly provided on the swing arm, and the movable frame is detachably connected to the sliding arm.

[0011] In one possible implementation, a sliding block is fixedly installed at the end of the movable frame, a connecting sleeve is fixedly installed on the sliding block, an insertion rod is inserted inside the connecting sleeve, the insertion rod is fixedly installed on the sliding arm, and a limiting component is provided between the insertion rod and the connecting sleeve for limiting the insertion rod inside the connecting sleeve.

[0012] In a possible implementation, the limiting component includes:

[0013] A movable sleeve, sleeved on the end of the connecting sleeve, wherein the position of the movable sleeve on the connecting sleeve has a degree of freedom of adjustment along the axis direction of the connecting sleeve;

[0014] A limiting ball is installed on the side wall of the connecting sleeve, an annular groove for installing the limiting ball is provided on the outer side of the insert rod, a limiting protrusion for limiting the limiting ball inside the annular groove is provided on the inner wall of the movable sleeve, and a clearance is provided on one side of the limiting protrusion along the axis of the movable sleeve to prevent the limiting ball from sliding out of the annular groove.

[0015] In a possible implementation, a baffle for limiting the movement of the movable sleeve along the first direction is fixedly mounted on the support arm, and an elastic member for pushing the movable sleeve to move toward the baffle is also provided between the connecting sleeve and the movable sleeve.

[0016] In a possible implementation, a fixing component is further provided between the support arm and the connecting sleeve, for fixing the connecting sleeve to the support arm after the insertion rod is separated from the connecting sleeve.

[0017] In a possible implementation, the fixing component includes:

[0018] A latch pin is slidably arranged on the side wall of the connecting sleeve along the radial direction of the connecting sleeve, and a limiting hole for accommodating the latch pin is arranged on the supporting arm;

[0019] A pushing member, installed between the latch and the connecting sleeve, and used to push the latch to move toward the outside of the connecting sleeve;

[0020] The pulling assembly is arranged between the connecting sleeve and the latch pin, and is used for pulling the latch pin to move toward the inside of the connecting sleeve when the plug rod is separated from the connecting sleeve.

[0021] In a possible implementation, the pulling component includes:

[0022] A sliding rod, the sliding rod is slidably disposed inside the connecting sleeve along the axial direction of the connecting sleeve;

[0023] A connecting plate, fixedly mounted on the outer side of the sliding rod and arranged along the radial direction of the sliding rod;

[0024] The guide rod is fixedly mounted on the latch pin, and the connecting plate is provided with an oblong through hole for mounting the guide rod, and the oblong through hole is inclined along a direction close to the insertion rod toward a direction close to the sliding rod.

[0025] In a possible implementation, the driving component includes:

[0026] A sliding frame, slidably disposed on the support arm along a first direction;

[0027] A first driving member, a fixed end of which is mounted on the sliding frame, and a driving end of which is mounted on the sliding arm;

[0028] A second driving member, a fixed end of which is mounted on the support arm, a driving end of which is mounted on the sliding frame, and driving directions of the first driving member and the second driving member are opposite.

[0029] In a possible implementation, a square hole for mounting on the swing arm or the sliding arm is provided on one side of the spade, and a fixing part for mounting the spade on the swing arm or the sliding arm can be detachably installed on the side wall of the square hole.

[0030] Compared with the prior art, the solution shown in the embodiment of the present application is provided with a support arm, which is hingedly arranged on the towing vehicle along the pitch angle, so that the support arm is supported on the ground. A sliding arm is slidably arranged on the support arm, and a hoe is detachably installed at the end of the sliding arm, and a swing arm is hingedly arranged at the bottom of the support arm, and the hoe can also be installed on the end of the swing arm. In the present application, when towing and rescuing on site, the support arm can be unfolded from the towing vehicle and supported on the ground, and the position of the sliding arm can be adjusted according to the terrain on site to ensure effective support for the towing vehicle. At the same time, when towing and rescuing a vehicle inside a pit, when the slope of the pit is large, the swing arm at the bottom of the support arm can be unfolded, and the hoe can be installed on the swing arm, so that it is supported on one side of the towing vehicle through the swing arm, and there is no need to move the position of the towing vehicle during the towing and rescuing process, which facilitates on-site rescue operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the structure of a multi-station towing and rescue operation support mechanism provided by an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of the structure of a support arm provided by an embodiment of the present invention;

[0033] Figure 3A schematic diagram of the connection structure between the sliding block and the sliding arm provided in an embodiment of the present invention;

[0034] Figure 4 A schematic diagram of the installation structure of a fixing assembly provided in an embodiment of the present invention;

[0035] Figure 5 A schematic diagram of the installation structure of a drive assembly provided in an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 1. Support arm; 11. Baffle; 2. Sliding arm; 21. Insertion rod; 3. Stop hoe; 4. Swing arm; 5. Drive assembly; 51. Sliding frame; 52. First drive member; 53. Second drive member; 6. Moving frame; 61. Support rod; 62. Sliding block; 621. Connecting sleeve; 7. Limiting assembly; 71. Moving sleeve; 711. Limiting protrusion; 72. Limiting ball; 73. Elastic member; 8. Fixing assembly; 81. Latch; 811. Guide rod; 82. Pushing member; 83. Pulling assembly; 831. Sliding rod; 832. Connecting plate. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] Please also read Figures 1 to 5 , the multi-station towing and rescue operation support mechanism provided by the present invention is now described. The multi-station towing and rescue operation support mechanism includes a support arm 1, a sliding arm 2, a stop hoe 3, a swing arm 4 and a driving assembly 5. The length direction of the support arm 1 is defined as a first direction; the sliding arm 2 is slidably arranged on the support arm 1 along the first direction, and one end of the sliding arm 2 extends out of the support arm 1; the stop hoe 3 is detachably mounted on the end of the sliding arm 2 located outside the support arm 1; the swing arm 4 is mounted at the bottom of the support arm 1, and the position of the swing arm 4 on the support arm 1 has the freedom to adjust along the pitch angle, and the end of the swing arm 4 away from the support arm 1 is detachably connected to the stop hoe 3; the driving assembly 5 is mounted between the support arm 1 and the sliding arm 2, and is used to push the sliding arm 2 to move on the support arm 1.

[0040] Compared with the prior art, the multi-station towing and rescue support mechanism provided in this embodiment is provided with a support arm 1, which is hingedly arranged on the towing and rescue vehicle along the pitch angle, so that the support arm 1 is supported on the ground. A sliding arm 2 is slidably arranged on the support arm 1, and a hoe 3 is detachably installed at the end of the sliding arm 2, and a swing arm 4 is hingedly arranged at the bottom of the support arm 1, and the hoe 3 can also be installed on the end of the swing arm 4. In this application, when towing and rescuing on site, the support arm 1 can be unfolded from the towing and rescue vehicle and supported on the ground, and the position of the sliding arm 2 is adjusted according to the on-site terrain to ensure that the towing and rescue vehicle can be effectively supported. At the same time, when towing and rescuing a vehicle inside a pit, when the slope of the pit is large, the swing arm 4 at the bottom of the support arm 1 can be unfolded, and the hoe 3 can be installed on the swing arm 4, so that it is supported on one side of the towing and rescue vehicle through the swing arm 4, and the position of the towing and rescue vehicle does not need to be moved during the towing and rescue process, which facilitates on-site rescue operations.

[0041] Specifically, in this embodiment, a rotating frame is rotatably arranged on the carrier vehicle, and the support arm 1 is hingedly arranged on the rotating frame along the pitch angle. The support direction of the support arm 1 outside the towing vehicle can be adjusted.

[0042] In some embodiments, the support arm 1 may be configured as follows: Figure 2 See the structure shown. Figure 2 , a mobile frame 6 is also provided on the support arm 1 for sliding along the first direction, a support rod 61 is hingedly provided in the middle of the mobile frame 6, the other end of the support rod 61 is hingedly provided on the swing arm 4, and the mobile frame 6 is detachably connected to the sliding arm 2. A support rod 61 is connected between the mobile frame 6 and the swing arm 4, and the two ends of the support rod 61 are respectively hingedly provided on the mobile frame 6 and the swing arm 4. When the mobile frame 6 moves along the first direction on the support arm 1, the swing arm 4 can be driven to swing on the support arm 1 through the support rod 61. When the swing arm 4 needs to be used alone for support, the sliding arm 2 can be driven to move on the support arm 1 through the driving assembly 5, so that the same group of driving assemblies 5 can drive the sliding arm 2 to work alone or drive the swing arm 4 to work alone.

[0043] Specifically, in this embodiment, when the sliding arm 2 needs to be supported on the ground alone, the moving frame 6 can be removed from the sliding arm 2, and the driving assembly 5 can be used to drive the sliding arm 2 to move alone, so as to achieve the effect of supporting the sliding arm 2 alone.

[0044] In some embodiments, the above-mentioned mobile frame 6 can be used as follows Figure 2 , Figure 3 See also Figure 2 , Figure 3, a sliding block 62 is fixedly mounted on the end of the mobile frame 6, a connecting sleeve 621 is fixedly mounted on the sliding block 62, a plug rod 21 is inserted inside the connecting sleeve 621, the plug rod 21 is fixedly mounted on the sliding arm 2, and a limiting component 7 for limiting the plug rod 21 inside the connecting sleeve 621 is arranged between the plug rod 21 and the connecting sleeve 621. The support arm 1 includes two cross beams arranged in parallel at intervals, a slide groove for installing the sliding block 62 is arranged on the cross beam, sliding blocks 62 are fixedly mounted on both ends of the mobile frame 6, and two sliding blocks 62 are slidably arranged on the cross beam. A connecting sleeve 621 is fixedly mounted on the sliding block 62, and the axis of the connecting sleeve 621 is arranged along the first direction. The plug rod 21 is fixedly mounted on the sliding arm 2, the plug rod 21 is inserted inside the connecting sleeve 621, and the plug rod 21 is limited inside the connecting sleeve 621 by the limiting component 7. When the insertion rod 21 is inserted into the connecting sleeve 621 and limited by the limiting assembly 7, the movable frame 6 is connected with the sliding arm 2, so that when the driving assembly 5 drives the sliding arm 2 to move, the swing arm 4 can be driven to be unfolded or retracted.

[0045] In some embodiments, the above-mentioned limiter assembly 7 can be used as follows: Figure 3 See the structure shown. Figure 3 , the limiting assembly 7 includes a moving sleeve 71 and a limiting ball 72. The moving sleeve 71 is sleeved on the end of the connecting sleeve 621, and the position of the moving sleeve 71 on the connecting sleeve 621 has the freedom to be adjusted along the axis direction of the connecting sleeve 621; the limiting ball 72 is installed on the side wall of the connecting sleeve 621, and an annular groove for installing the limiting ball 72 is provided on the outer side of the plug rod 21, and a limiting protrusion 711 for limiting the limiting ball 72 inside the annular groove is provided on the inner wall of the moving sleeve 71, and a stop is provided on one side of the limiting protrusion 711 along the axis of the moving sleeve 71 to avoid the limiting ball 72 from sliding out of the annular groove. A mounting hole for installing the limiting ball 72 is provided on the side wall of the connecting sleeve 621, and an arc-shaped support is also provided on the inner wall of the connecting sleeve 621 for preventing the limiting ball 72 from falling into the inside of the connecting sleeve 621. The moving sleeve 71 is slidably arranged on the outer side of the sliding sleeve. When the movable sleeve 71 slides on the connecting sleeve 621 , the limiting protrusion 711 on the movable sleeve 71 abuts against the limiting ball 72 , so that a part of the limiting ball 72 can be limited inside the connecting sleeve 621 and inside the annular groove of the insertion rod 21 , thereby placing the insertion rod 21 inside the movable sleeve 71 .

[0046] Specifically, in this embodiment, when the insertion rod 21 needs to be removed from the inside of the connecting sleeve 621, the movable sleeve 71 is pushed to move on the connecting sleeve 621, so that the limiting ball 72 is separated from the limiting protrusion 711 and moves to the yield position. The limiting ball 72 can move to the outside of the connecting sleeve 621, so that the limiting ball 72 can be separated from the annular groove on the insertion rod 21, and the insertion rod 21 can be slid out of the inside of the connecting sleeve 621. The insertion rod 21 and the connecting sleeve 621 can be disassembled and assembled by moving the movable sleeve 71 on the connecting sleeve 621. The structure is simple and easy to operate.

[0047] In some embodiments, the support arm 1 may be configured as follows: Figure 3 See the structure shown. Figure 3 , a baffle 11 for limiting the movement of the movable sleeve 71 along the first direction is fixedly installed on the support arm 1, and an elastic member 73 for pushing the movable sleeve 71 to move toward the baffle 11 is also provided between the connecting sleeve 621 and the movable sleeve 71. The support arm 1 includes two parallel beams spaced apart, the baffle 11 is fixedly installed on the inner side of the beam, and a clearance groove for avoiding the insertion rod 21 and the connecting sleeve 621 is provided on the baffle 11. When the driving assembly 5 drives the sliding arm 2 to move toward the outside of the support arm 1, the sliding block 62 is driven to move together through the connected insertion rod 21 and the connecting sleeve 621, thereby driving the moving frame 6 to move. When the connecting sleeve 621 moves to the baffle 11, the movable sleeve 71 outside the connecting sleeve 621 abuts against the baffle 11, and when the sliding arm 2 continues to move toward the outside of the support arm 1, the movable sleeve 71 is relatively displaced relative to the connecting sleeve 621. Thereby, the limiting ball 72 is separated from the limiting protrusion 711 and moves to the yield position on the movable sleeve 71, so that the limiting ball 72 can slide out from the inside of the annular groove, releasing the limiting between the connecting sleeve 621 and the insertion rod 21, so that the insertion rod 21 can slide out from the inside of the connecting sleeve 621.

[0048] Specifically, in this embodiment, an annular groove for installing a limiting ball 72 is provided on the outer wall of the insertion rod 21, and a chamfer is provided on the inner wall of the annular groove to facilitate the limiting ball 72 to slide out of the annular groove, so that when the insertion rod 21 slides out from the inside of the connecting sleeve 621, it can automatically guide the limiting ball 72 to slide out from the inside of the annular groove.

[0049] Specifically, in this embodiment, the setting of the elastic member 73 can push the movable sleeve 71 to move outward through the elastic member 73 when the insertion rod 21 is installed inside the connecting sleeve 621 at a later stage, and move the limiting protrusion 711 to the limiting ball 72, thereby limiting the limiting ball 72 inside the annular groove.

[0050] In some embodiments, the support arm 1 may be configured as follows: Figure 3 , Figure 4 See also Figure 3 , Figure 4A fixing assembly 8 is also provided between the support arm 1 and the connecting sleeve 621, which is used to fix the connecting sleeve 621 to the support arm 1 after the insertion rod 21 is separated from the connecting sleeve 621. The setting of the fixing assembly 8 can fix the connecting sleeve 621 to the support arm 1 after the limiting ball 72 is separated from the insertion rod 21, so that the relative position between the connecting sleeve 621 and the movable sleeve 71 is maintained, thereby facilitating the subsequent reconnection of the insertion rod 21 to the inside of the connecting sleeve 621. And when the connecting sleeve 621 is fixed to the support arm 1, the movable frame 6 is fixed to the support arm 1. Thereby, the position of the swing arm 4 on the support arm 1 is guaranteed. And when the insertion rod 21 is separated from the connecting sleeve 621, and the connecting sleeve 621 is fixed to the support arm 1 by the fixing assembly 8, the swing arm 4 is in a storage state.

[0051] In some embodiments, the fixing assembly 8 may be configured as follows: Figure 3 , Figure 4 See also Figure 3 , Figure 4 The fixing assembly 8 includes a latch 81, a pusher 82 and a pulling assembly 83. The latch 81 is arranged on the side wall of the connecting sleeve 621 to slide along the radial direction of the connecting sleeve 621, and a limiting hole for accommodating the latch 81 is arranged on the support arm 1; the pusher 82 is installed between the latch 81 and the connecting sleeve 621, and is used to push the latch 81 to move outside the connecting sleeve 621; the pulling assembly 83 is arranged between the connecting sleeve 621 and the latch 81, and is used to pull the latch 81 to move inside the connecting sleeve 621 when the plug rod 21 is separated from the connecting sleeve 621. The pusher 82 is a spring, and the latch 81 is slidably arranged on the side wall of the connecting sleeve 621. The latch 81 can be driven to move outside the connecting sleeve 621 by the pusher 82. A side plate is fixedly installed on the inner side of the support arm 1, and a limiting hole for accommodating the latch 81 is arranged on the side plate. Before the connecting sleeve 621 moves to the side plate, the latch 81 is located inside the connecting sleeve 621 through the pulling assembly 83. When the connecting sleeve 621 moves to the inside of the side plate, the plug rod 21 can be moved out of the connecting sleeve 621, and when the plug rod 21 moves to the outside of the connecting sleeve 621, the pulling assembly 83 can drive the latch 81 to move from the inside of the connecting sleeve 621 to the outside, and when the latch 81 moves to the limiting hole, the latch 81 moves to the inside of the limiting hole under the action of the pushing member 82, thereby fixing the connecting sleeve 621 to the support arm 1.

[0052] Preferably, in this embodiment, a chamfer is provided on the side plate on the support arm 1 for guiding the bolt 81 to move to the inside of the connecting sleeve 621. When the plug rod 21 pulls the connecting sleeve 621 to move to the outside of the support arm 1, when the bolt 81 moves to the side plate, the chamfer guide enables the bolt 81 to slide into the inside of the connecting sleeve 621. Thus, the end of the bolt 81 is always attached to the inner wall of the side plate until it moves to the limiting hole, and the bolt 81 slides into the limiting hole under the action of the pusher 82.

[0053] Specifically, in this embodiment, the limiting hole is arranged obliquely along the side wall close to the baffle 11 in the first direction, and is used to guide the latch 81 to slide into the connection sleeve 621. The side wall away from the baffle 11 is arranged perpendicular to the axis of the connection sleeve 621, and is used to limit the latch 81 to move in the direction away from the baffle 11. In addition, a plurality of limiting holes are arranged along the first direction, and when the latch 81 slides into the limiting hole, it can move in the direction close to the baffle 11 but cannot move in the direction away from the baffle 11.

[0054] In some embodiments, the pulling assembly 83 may be configured as follows: Figure 4 See the structure shown. Figure 4 The pulling assembly 83 includes a sliding rod 831, a connecting plate 832 and a guide rod 811. The sliding rod 831 is slidably arranged inside the connecting sleeve 621 along the axial direction of the connecting sleeve 621; the connecting plate 832 is fixedly installed on the outer side of the sliding rod 831 and is arranged along the radial direction of the sliding rod 831; the guide rod 811 is fixedly installed on the latch 81, and an oblong through hole for installing the guide rod 811 is arranged on the connecting plate 832, and the oblong through hole is inclined in the direction close to the plug 21 and in the direction close to the sliding rod 831. The sliding rod 831 is coaxially arranged with the connecting sleeve 621, and a plurality of connecting plates 832 are fixedly installed on the outer side of the sliding rod 831, and the plurality of connecting plates 832 are arranged along the radial direction of the sliding rod 831. And oblong through holes are arranged on the plurality of connecting plates 832. The latch 81 is moved toward the outside of the connecting sleeve 621 by the action of the pushing member 82. The guide rod 811 at one end of the latch 81 can drive the sliding rod 831 to move toward the outside of the support arm 1 along the first direction through the guidance of the oblong through hole. When the insertion rod 21 is installed inside the connecting sleeve 621, the end of the insertion rod 21 abuts against the end of the sliding rod 831, thereby pushing the sliding rod 831 to slide inside the connecting sleeve 621. When the sliding rod 831 slides inside the connecting sleeve 621, the oblong through hole on the connecting plate 832 can drive the latch 81 to move inside the connecting sleeve 621. Thus, the latch 81 is separated from the limiting hole on the support arm 1. The connecting sleeve 621 can move together with the insertion rod 21.

[0055] Preferably, in this embodiment, the width of the annular groove on the insertion rod 21 along the first direction is greater than the diameter of the limiting ball 72. When the insertion rod 21 moves to the inside of the connecting sleeve 621 and before contacting the sliding rod 831, the limiting ball 72 is located inside the annular groove, and when the insertion rod 21 pushes the sliding rod 831 to make the latch 81 disengage from the limiting hole, the limiting ball 72 is still located inside the annular groove. And when the moving sleeve 71 is separated from the baffle 11, the limiting ball 72 is always located inside the annular groove. Thus, the insertion rod 21 and the connecting sleeve 621 can be connected together.

[0056] In some embodiments, the drive assembly 5 may be configured as follows: Figure 5 See the structure shown. Figure 5 The driving assembly 5 includes a sliding frame 51, a first driving member 52 and a second driving member 53. The sliding frame 51 is slidably arranged on the support arm 1 along the first direction; the fixed end of the first driving member 52 is mounted on the sliding frame 51, and the driving end of the first driving member 52 is mounted on the sliding arm 2; the fixed end of the second driving member 53 is mounted on the support arm 1, and the driving end of the second driving member 53 is mounted on the sliding frame 51, and the driving directions of the first driving member 52 and the second driving member 53 are opposite. The sliding frame 51 is slidably arranged on the support arm 1 along the first direction. The first driving member 52 and the second driving member 53 are both hydraulic cylinders, the fixed end of the first driving member 52 is fixedly mounted on the sliding frame 51, and the driving end of the first driving member 52 is connected to the sliding arm 2. When the sliding arm 2 needs to be used as a support, the first driving member 52 is started, so that the first driving member 52 drives the sliding arm 2 to move outward, and when the sliding arm 2 moves outward, the first driving member 52 can drive the sliding arm 2 to move outward alone by disconnecting the insertion rod 21 from the connecting sleeve 621. When the swing arm 4 is required to be used as a support, the second driving member 53 can drive the sliding frame 51 to move in the opposite direction. When the sliding frame 51 moves in the opposite direction, the sliding arm 2 moves inside the support arm 1 and drives the moving frame 6 to move together. When the moving frame 6 moves, it drives the swing arm 4 to flip through the support rod 61, thereby realizing the storage of the sliding arm 2 and the deployment of the swing arm 4. The stroke of the first driving member 52 and the second driving member 53 is reduced, saving on-site installation space.

[0057] Specifically, in this embodiment, a support column is detachably installed between the sliding frame 51 and the sliding arm 2. When the second driving member 53 is required to drive the sliding frame 51 to move, the support column can be connected between the sliding frame 51 and the sliding arm 2 to reduce the load of the first driving member 52. The sliding frame 51 is detachably installed on the support arm 1 by bolts. When the first driving member 52 is required to drive the sliding arm 2 to move, the sliding frame 51 can be fixed to the support arm 1 to reduce the load of the second driving member 53.

[0058] In some embodiments, the above-mentioned hoe 3 can be used as follows Figure 1 , Figure 2 See also Figure 1 , Figure 2A square hole for mounting on the swing arm 4 or the sliding arm 2 is provided on one side of the hoe 3, and a fixing piece for mounting the hoe 3 on the swing arm 4 or the sliding arm 2 can be detachably installed on the side wall of the square hole. Two square tubes are fixedly installed on the side of the hoe 3 away from the working side, and the square hole is located inside the square tube. Mounting holes for mounting fixing pieces are provided at the ends of the sliding arm 2 and the swing arm 4, and the mounting holes are threaded holes. And through holes for mounting fixing pieces are provided on the side wall of the square tube. When installing the hoe 3, the two square tubes on the hoe 3 can be respectively put on the sliding arm 2 or the swing arm 4, and then the fixing piece is used to pass through the through hole on the square tube and connected with the mounting hole, so as to realize the connection between the hoe 3 and the sliding arm 2 or the swing arm 4. The structure is simple and easy to operate.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-station towing and rescue operation support mechanism, characterized in that: include: A support arm (1), wherein the length direction of the support arm (1) is defined as a first direction; A sliding arm (2) is slidably arranged on the support arm (1) along the first direction, and one end of the sliding arm (2) extends out of the support arm (1); A hoe (3) is detachably mounted on one end of the sliding arm (2) located outside the supporting arm (1); A swing arm (4) is mounted at the bottom of the support arm (1); the position of the swing arm (4) on the support arm (1) has a degree of freedom for adjustment along a pitch angle; and one end of the swing arm (4) away from the support arm (1) is detachably connected to the hoe (3); A driving assembly (5) is installed between the support arm (1) and the sliding arm (2) and is used to push the sliding arm (2) to move on the support arm (1).

2. The multi-station towing and rescue operation support mechanism according to claim 1, characterized in that: A movable frame (6) is also provided on the support arm (1) so as to slide along the first direction, a support rod (61) is hingedly provided in the middle of the movable frame (6), the other end of the support rod (61) is hingedly provided on the swing arm (4), and the movable frame (6) is detachably connected to the sliding arm (2).

3. The multi-station towing and rescue operation support mechanism according to claim 2, characterized in that: A sliding block (62) is fixedly mounted on the end of the movable frame (6), a connecting sleeve (621) is fixedly mounted on the sliding block (62), an insertion rod (21) is inserted inside the connecting sleeve (621), the insertion rod (21) is fixedly mounted on the sliding arm (2), and a limiting component (7) is provided between the insertion rod (21) and the connecting sleeve (621) for limiting the insertion rod (21) inside the connecting sleeve (621).

4. The multi-station towing and rescue operation support mechanism according to claim 3, characterized in that: The limiting component (7) comprises: A movable sleeve (71) is sleeved on the end of the connecting sleeve (621), and the position of the movable sleeve (71) on the connecting sleeve (621) has a degree of freedom of adjustment along the axial direction of the connecting sleeve (621); A limiting ball (72) is mounted on the side wall of the connecting sleeve (621); an annular groove for mounting the limiting ball (72) is provided on the outer side of the insert rod (21); a limiting protrusion (711) for limiting the limiting ball (72) within the annular groove is provided on the inner wall of the movable sleeve (71); and a stop is provided on one side of the limiting protrusion (711) along the axis of the movable sleeve (71) to prevent the limiting ball (72) from sliding out of the annular groove.

5. The multi-station towing and rescue operation support mechanism according to claim 4, characterized in that: A baffle (11) is fixedly mounted on the support arm (1) for limiting the movement of the movable sleeve (71) along a first direction, and an elastic member (73) is also provided between the connecting sleeve (621) and the movable sleeve (71) for pushing the movable sleeve (71) to move in a direction close to the baffle (11).

6. The multi-station towing and rescue operation support mechanism according to claim 3, characterized in that: A fixing component (8) is also provided between the support arm (1) and the connecting sleeve (621) for fixing the connecting sleeve (621) to the support arm (1) after the insertion rod (21) is separated from the connecting sleeve (621).

7. The multi-station towing and rescue operation support mechanism according to claim 6, characterized in that: The fixing assembly (8) comprises: A latch (81) is arranged on the side wall of the connecting sleeve (621) so as to slide along the radial direction of the connecting sleeve (621), and a limiting hole for accommodating the latch (81) is arranged on the supporting arm (1); A pushing member (82) is installed between the latch pin (81) and the connecting sleeve (621) and is used to push the latch pin (81) to move toward the outside of the connecting sleeve (621); A pulling assembly (83) is arranged between the connecting sleeve (621) and the latch pin (81), and is used to pull the latch pin (81) to move toward the inside of the connecting sleeve (621) when the insertion rod (21) is separated from the connecting sleeve (621).

8. The multi-station towing and rescue operation support mechanism according to claim 7, characterized in that: The pulling assembly (83) comprises: A sliding rod (831), wherein the sliding rod (831) is slidably disposed inside the connecting sleeve (621) along the axial direction of the connecting sleeve (621); A connecting plate (832) is fixedly mounted on the outside of the sliding rod (831) and is arranged along the radial direction of the sliding rod (831); The guide rod (811) is fixedly mounted on the latch pin (81), and the connecting plate (832) is provided with an oblong through hole for mounting the guide rod (811), wherein the oblong through hole is inclined from a direction close to the insertion rod (21) to a direction close to the sliding rod (831).

9. The multi-station towing and rescue operation support mechanism according to claim 1, characterized in that: The driving assembly (5) comprises: A sliding frame (51) is slidably arranged on the support arm (1) along a first direction; A first driving member (52), a fixed end of which is mounted on the sliding frame (51), and a driving end of which is mounted on the sliding arm (2); A second driving member (53) has a fixed end mounted on the support arm (1), a driving end of the second driving member (53) mounted on the sliding frame (51), and driving directions of the first driving member (52) and the second driving member (53) are opposite.

10. The multi-station towing and rescue operation support mechanism according to claim 2, characterized in that: A square hole for mounting on the swing arm (4) or the sliding arm (2) is provided on one side of the hoe (3), and a fixing piece for mounting the hoe (3) on the swing arm (4) or the sliding arm (2) can be detachably mounted on the side wall of the square hole.

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