Unhooking assist device and towing transport system

Abstract

An embodiment of the present invention provides an unhooking assistance device and a traction and transportation system. The unhooking assistance device includes a bracket assembly, a retractable mechanism, and a lifting belt. The bracket assembly includes a first bracket and a second bracket, the first bracket and the second bracket being spaced apart in a first direction to form a lifting space. The retractable mechanism is disposed on the first bracket. The lifting belt has a mating portion, which is located within the lifting space and is suitable for mating with a coupler. The first end of the lifting belt is connected to the retractable mechanism, and the second end of the lifting belt is connected to the second bracket. The retractable mechanism can be used to retract a portion of the lifting belt to raise the coupler and to release a portion of the lifting belt to lower the coupler. The unhooking assistance device of the embodiment of the present invention retracts the lifting belt and releases the lifting belt through the retractable mechanism, allowing the lifting belt to drive the coupler up and down. When the coupler needs to be hooked or unhooked, the unhooking assistance device can be used to transport the coupler, thereby providing high safety.

Description

Technical Field

[0001] The present invention relates to the field of vehicle traction connection devices, and in particular to a decoupling auxiliary device and a traction transportation system. Background Art

[0002] The traction connection device is a device that connects rail transit vehicles into a train. It mainly includes a coupler, which connects the vehicles to form a train and transmits longitudinal force. The wire rope traction system in the traction connection device is an auxiliary transportation system used in coal mines. Its characteristic is that it uses a tractor as a power source and drives the transport vehicle on a fixed track through a wire rope connected to the coupler. Due to the heavy weight of the coupler, manual handling is difficult. Therefore, the relevant technology adopts the method of setting a lifting device in the coal mine tunnel and transporting the coupler through the hook of the lifting device. However, the installation of a lifting device will affect the structure of the tunnel infrastructure, and the hook is suspended in the tunnel when not working. Therefore, the method of setting a lifting device has a greater safety hazard. Summary of the Invention

[0003] The present invention aims to at least partially address one of the technical problems in the related art. To this end, embodiments of the present invention provide a coupling-off assist device that utilizes a lifting belt mounted on a bracket assembly to support and lift the coupler, providing enhanced safety.

[0004] An embodiment of the present invention further provides a traction transport system.

[0005] The unhooking auxiliary device according to the embodiment of the present invention comprises:

[0006] A bracket assembly, the bracket assembly comprising a first bracket and a second bracket, the first bracket and the second bracket being spaced apart in a first direction to form a lifting space;

[0007] a retractable mechanism, the retractable mechanism being arranged on the first bracket;

[0008] A lifting belt having a mating portion, wherein the mating portion is located in the lifting space and is suitable for mating with the coupler, the first end of the lifting belt is connected to the retracting mechanism, the second end of the lifting belt is connected to the second bracket, and the retracting mechanism can be used to retract part of the lifting belt to make the coupler rise and release part of the lifting belt to make the coupler fall.

[0009] The unhooking auxiliary device of the embodiment of the present invention forms a lifting space that can accommodate the lifting and moving of the coupler through a bracket assembly. The bracket assembly is provided with a retracting mechanism and a lifting belt suitable for carrying the coupler. The lifting belt is retracted and released by the retracting mechanism so that the lifting belt drives the coupler to rise and fall. When the coupler needs to be hooked or unhooked, the unhooking auxiliary device can be used to transport the coupler, which has higher safety.

[0010] In some embodiments, the retraction and release mechanism includes a winding assembly, at least a portion of which is rotatable relative to the first bracket to wind and release the lifting strap.

[0011] In some embodiments, the winding assembly comprises:

[0012] a rotating member rotatably disposed on the first bracket, the first end of the lifting belt being connected to the rotating member;

[0013] A driving member is provided on the first bracket and is connected to the rotating member to drive the rotating member to rotate relative to the first bracket.

[0014] In some embodiments, the axial direction of the rotating member is orthogonal to the first direction, the lifting belt is provided in plurality, and the plurality of lifting belts are arranged at intervals along the axial direction of the rotating member.

[0015] In some embodiments, the driving member has a driving shaft, and the axial direction of the rotating member is arranged parallel to the axial direction of the driving shaft;

[0016] The winding assembly further includes a transmission group, which includes:

[0017] a first transmission member, the first transmission member being disposed on an outer circumferential surface of the rotating member;

[0018] A second transmission member is provided on the outer peripheral surface of the driving shaft, and the second transmission member is connected to the first transmission member.

[0019] In some embodiments, the winding assembly further comprises:

[0020] a ratchet, the ratchet being arranged on the rotating member;

[0021] A pawl is provided on the first bracket, and the pawl has a limited position and a disengagement position. In the limited position, the pawl cooperates with the ratchet to enable the ratchet and the rotating member to rotate in one direction. In the disengagement position, the ratchet and the pawl are disengaged.

[0022] In some embodiments, each of the first bracket and the second bracket comprises:

[0023] a round rod, wherein the length direction of the round rod is orthogonal to the first direction;

[0024] a first support portion, the first support portion extending in a vertical direction, the top of the first support portion being connected to the round rod, and the lifting space being formed between the first support portion of the first bracket and the first support portion of the second bracket;

[0025] a second support portion, the top of which is connected to the round rod, and the second support portion extends from top to bottom and is tilted away from the first support portion;

[0026] A third supporting portion is connected between the first supporting portion and the second supporting portion.

[0027] In some embodiments, the first bracket and the second bracket each have at least two second supporting portions, the at least two second supporting portions are spaced apart in a direction perpendicular to the first direction, and the rotating member is rotatably provided on the at least two second supporting portions of the first bracket;

[0028] Each of the first bracket and the second bracket further includes a crossbeam, the crossbeam extending in a direction orthogonal to the first direction and connecting the corresponding at least two second supporting portions, the driving member being provided on the crossbeam of the first bracket;

[0029] The second end of the lifting belt is connected to the round rod of the second bracket.

[0030] In some embodiments, the unhooking auxiliary device further includes a base, and the first bracket and the second bracket are spaced apart and arranged on the base.

[0031] The traction transport system according to the embodiment of the present invention includes:

[0032] Tracks, wherein the tracks are at least two parallel and spaced apart;

[0033] A tractor, the tractor being arranged on the track, the tractor comprising a connecting seat, a chain and a latch, the connecting seat having a first latch hole adapted to the latch;

[0034] A transport vehicle, the transport vehicle being arranged on the track, the transport vehicle having a coupler at one end facing the tractor, the coupler having a second latch hole adapted to the latch;

[0035] An unhooking auxiliary device, the unhooking auxiliary device is the unhooking auxiliary device described in any one of the above embodiments, the unhooking auxiliary device has an in-use position and a standby position, in the in-use position, the unhooking auxiliary device is located between two adjacent rails and between the tractor and the transport vehicle, and the mating portion of the lifting belt carries the coupler to drive the coupler up and down under the drive of the retracting and extending mechanism, so that the coupler can be unhooked from the connecting seat through the pin and the chain; in the standby position, the unhooking auxiliary device is disengaged from between the tractor and the transport vehicle.

[0036] The traction transport system of an embodiment of the present invention has an unhooking auxiliary device of an embodiment of the present invention. When the unhooking auxiliary device is in the use position between the two rails, it carries the coupler of the transport vehicle and can drive the coupler to move up and down between a first position at the same height as the connecting seat and a second position lower than the connecting seat through a lifting belt. When the coupler needs to be hooked or unhooked, the coupler can be transported through the unhooking auxiliary device, which has higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 2. It is a schematic structural diagram of a hook-off assisting device according to an embodiment of the present invention;

[0038] Figure 2 This is a schematic diagram of the use of the unhooking auxiliary device according to an embodiment of the present invention. Figure 1 ;

[0039] Figure 3 This is a schematic diagram of the use of the unhooking auxiliary device according to an embodiment of the present invention. Figure 2 ;

[0040] Figure 4 This is a schematic diagram of the use status of the traction transport system according to an embodiment of the present invention. Figure 1 ;

[0041] Figure 5 This is a schematic diagram of the use status of the traction transport system according to an embodiment of the present invention. Figure 2 .

[0042] Reference numerals:

[0043] 1. Bracket assembly; 11. First bracket; 12. Second bracket; 13. Round rod; 14. First support part; 15. Second support part; 16. Third support part; 17. Crossbeam; 2. Retraction mechanism; 21. Rotating part; 22. Driving part; 23. Transmission group; 24. Ratchet; 25. Pawl; 3. Lifting belt; 4. Base; 41. Roller; 5. Connecting seat; 6. Track; 7. Coupler; 8. Chain; 9. Pin; 10. D-type buckle. DETAILED DESCRIPTION

[0044] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0045] Please refer to the following Figure 1 -Attached Figure 5 A decoupling assist device and a towing transport system according to embodiments of the invention are described.

[0046] like Figure 1-Figure 3 As shown, the unhooking auxiliary device according to the embodiment of the present invention includes a bracket assembly 1 , a retractable mechanism 2 and a lifting belt 3 .

[0047] The bracket assembly 1 includes a first bracket 11 and a second bracket 12. The first bracket 11 and the second bracket 12 are aligned in a first direction (eg Figure 1 The retracting mechanism 2 is arranged on the first bracket 11. Specifically, as shown in the left and right directions, the retracting mechanism 2 is arranged to form a lifting space. Figure 1-Figure 3 As shown, the first bracket 11 and the second bracket 12 are spaced apart in the left-right direction. A lifting space is defined between the first bracket 11 and the second bracket 12, and the lifting space is capable of accommodating the coupler 7. The retractable mechanism 2 is disposed at the right end of the first bracket 11. In other words, the retractable mechanism 2 is located outside the lifting space. It is understood that in other embodiments, the retractable mechanism 2 may also be located within the lifting space, in which case the retractable mechanism 2 is located at the top of the first bracket 11.

[0048] The lifting belt 3 has a matching portion, which is located in the lifting space and is suitable for matching with the coupler 7. The first end of the lifting belt 3 is connected to the retracting mechanism 2, and the second end of the lifting belt 3 is connected to the second bracket 12. The retracting mechanism 2 can be used to retract part of the lifting belt 3 to make the coupler 7 rise and release part of the lifting belt 3 to make the coupler 7 fall. Specifically, Figure 1-Figure 3 As shown, the middle part of the lifting belt 3 is a matching part, which is located in the lifting space and is suitable for carrying the coupler 7. The left end of the lifting belt 3 is connected to the second bracket 12, and the right end of the lifting belt 3 is connected to the retracting mechanism 2. The retracting mechanism 2 is used to recycle part of the lifting belt 3 to shorten the length of the lifting belt 3 between the second bracket 12 and the retracting mechanism 2, so that the length of the lifting belt 3 located in the lifting space is shortened, thereby causing the coupler 7 carried by the matching part to rise in the lifting space. The retracting mechanism 2 is also used to release part of the lifting belt 3 to increase the length of the lifting belt 3 between the second bracket 12 and the retracting mechanism 2, so that the length of the lifting belt 3 located in the lifting space is increased, thereby causing the coupler 7 carried by the matching part to descend in the lifting space.

[0049] It should be noted that the matching portion is a section in the middle of the lifting belt 3. During the lifting process of the coupler 7 in the lifting space, the coupler 7 slides relative to the matching portion in the length direction of the lifting belt 3. The matching portion corresponding to the coupler 7 at different height positions is at different positions of the lifting belt 3, such as Figure 2 and Figure 3 As shown, when the coupler 7 descends, the partially mating portion of the coupler 7 after the load is lowered is located to the right of the partially mating portion of the coupler 7 before the load is lowered; when the coupler 7 rises, the partially mating portion of the coupler 7 after the load is raised is located to the left of the partially mating portion of the coupler 7 before the load is raised.

[0050] The unhooking assist device of the embodiment of the present invention uses a bracket assembly to form a lifting space capable of accommodating the lifting and lowering movement of the coupler. The bracket assembly is equipped with a retractable mechanism and a lifting belt suitable for supporting the coupler. The retractable mechanism retracts and releases the lifting belt, allowing the lifting belt to drive the coupler up and down. When the coupler needs to be hooked or unhooked, the bracket assembly is simply placed on the ground or the roadway floor. The retractable mechanism then retracts and releases the lifting belt to raise and lower the coupler, achieving transport of the coupler. Compared to the related art method of using a lifting device to transport the coupler, the unhooking assist device of the embodiment of the present invention does not require changes to the structure of the roadway infrastructure and does not have a hook suspended in the roadway, thus providing greater safety.

[0051] In some embodiments, the retracting and releasing mechanism 2 includes a winding assembly, at least a portion of which is rotatable relative to the first bracket 11 to wind and release the lifting belt 3 .

[0052] In some embodiments, the winding assembly includes a rotating member 21 and a driving member 22. The rotating member 21 is rotatably disposed on the first bracket 11. The first end of the lifting belt 3 is connected to the rotating member 21. The driving member 22 is disposed on the first bracket 11. The driving member 22 is connected to the rotating member 21 to drive the rotating member 21 to rotate compared to the first bracket 11.

[0053] like Figure 1 As shown, the retracting and unwinding mechanism 2 includes a winding assembly, which includes a rotating member 21 and a driving member 22. The rotating member 21 is preferably a shaft or a rod, and the driving member 22 is preferably a motor. The rotating member 21 is arranged on the first bracket 11 and can rotate relative to the first bracket 11. The first end of the lifting belt 3 is connected to the outer circumference of the rotating member 21. The driving member 22 is arranged on the first bracket 11 and connected to the rotating member 21 to drive the rotating member 21 to rotate. Figure 2 and Figure 3In the angle shown, when the driving member 22 drives the rotating member 21 to rotate counterclockwise, the lifting belt 3 is gradually wrapped around the outer periphery of the rotating member 21, so that the length of the partial lifting belt 3 between the second bracket 12 and the rotating member 21 is gradually shortened, causing the coupler 7 to rise in the lifting space; when the driving member 22 drives the rotating member 21 to rotate clockwise, the partial lifting belt 3 wrapped around the outer periphery of the rotating member 21 is gradually released, so that the length of the partial lifting belt 3 between the second bracket 12 and the rotating member 21 is gradually increased, causing the coupler 7 to descend in the lifting space.

[0054] It is understandable that the driving member is not limited to being disposed on the first bracket. In other embodiments, the driving member only needs to be able to drive the rotating member to rotate.

[0055] It can be understood that the retraction mechanism is not limited to a winding component. In other embodiments, the lifting belt is provided with a first clamping platform arranged at intervals along its length direction, and the retraction mechanism has a rotating part. The outer peripheral surface of the rotating part is provided with a plurality of second clamping platforms arranged at intervals along its circumference. When the rotating part rotates, the side of the second clamping platform abuts against the side of the first clamping platform, so that the second clamping platform can push the first clamping platform to move tangentially along the rotating part, so that the rotating part can recycle and release the lifting belt. The recovered part of the lifting belt will not be wrapped around the outer periphery of the rotating part, but will move away from the rotating part.

[0056] In some embodiments, the axial direction of the rotating member 21 is orthogonal to the first direction, a plurality of lifting belts 3 are provided, and the plurality of lifting belts 3 are arranged at intervals along the axial direction of the rotating member 21 .

[0057] like Figure 1 As shown, the rotating member 21 extends in the front-to-back direction, and a plurality of lifting belts 3 are provided. The plurality of lifting belts 3 are arranged at intervals in the front-to-back direction to jointly support the coupler 7 .

[0058] It can be understood that the number of lifting belts is not limited to multiple. In other embodiments, only one lifting belt is provided, but the size of the lifting belt in the front-to-back direction is larger than the size of any one of the lifting belts when multiple lifting belts are provided, so that one lifting belt can carry the coupler.

[0059] It can be understood that the structure of the lifting belt is not limited to a belt. In other embodiments, the lifting belt can be a rope, a chain or a net.

[0060] In some embodiments, the driving member 22 has a drive shaft, and the axial direction of the rotating member 21 is arranged parallel to the axial direction of the drive shaft. The winding assembly also includes a transmission group 23, which includes a first transmission member and a second transmission member. The first transmission member is disposed on the outer circumference of the rotating member 21, and the second transmission member is disposed on the outer circumference of the drive shaft, and the second transmission member is connected to the first transmission member.

[0061] like Figure 1As shown, the driving member 22 has a driving shaft extending in the front-to-back direction. The driving shaft of the driving member 22 is spaced apart from the rotating member 21 in the upper and lower directions and is connected to each other through the transmission group 23 so that the driving member 22 can drive the rotating member 21 to rotate.

[0062] The transmission group 23 includes a first transmission member and a second transmission member. The first transmission member is arranged on the outer peripheral surface of the rotating member 21, and the second transmission member is arranged on the outer peripheral surface of the driving shaft. The first transmission member and the second transmission member are correspondingly arranged in the front and rear directions for transmission connection. The transmission group 23 can adopt a chain transmission group, a belt transmission group or a gear transmission group. In other words, the first transmission member and the second transmission member can be sprockets connected by a transmission chain, pulleys connected by a transmission belt or meshing gears.

[0063] The transmission group 23 may further include a housing for accommodating the first transmission member and the second transmission member.

[0064] It is understandable that the winding assembly is not limited to having a transmission group. In other embodiments, the winding assembly does not have a transmission group, and the driving shaft of the driving member is coaxially connected to the rotating member.

[0065] In some embodiments, the winding assembly also includes a ratchet 24 and a pawl 25. The ratchet 24 is provided on the rotating member 21, and the pawl 25 is provided on the first bracket 11. The pawl 25 has a limited position and a disengagement position. In the limited position, the pawl 25 cooperates with the ratchet 24 to make the ratchet 24 and the rotating member 21 rotate in one direction. In the disengagement position, the ratchet 24 and the pawl 25 are disengaged.

[0066] like Figure 1 As shown, sleeves are respectively provided at the front and rear ends of the first bracket 11, and the front and rear ends of the rotating member 21 are respectively inserted into the corresponding sleeves so that the rotating member 21 can be rotatably provided on the first bracket 11. A mounting seat is also provided at the front end of the first bracket 11, and the mounting seat is preferably a mounting plate that is provided with an integral structure with the sleeve at the front end. The front end of the rotating member 21 passes through the front end surface of the mounting seat, and a ratchet 24 is provided on the part of the rotating member 21 passing through the mounting seat. The ratchet 24 rotates synchronously with the rotating member 21, and the front end surface of the mounting seat is provided with a pawl 25 that can rotate in the front and rear directions. The pawl 25 has a limited position and a disengagement position. In the limited position, the pawl 25 cooperates with the ratchet 24 to make the ratchet 24 and the rotating member 21 rotate in one direction. Preferably, the pawl 25 cooperates with the ratchet 24 so that the rotating member 21 can only be rotated as shown in FIG. Figure 2 In the illustrated position, the coupler 7 is rotated counterclockwise to prevent it from suddenly falling if the rotating member 21 loses power. In the disengaged position, the ratchet 24 and pawl 25 are disengaged, allowing the rotating member 21 to rotate in both clockwise and counterclockwise directions. Preferably, when the coupler 7 is rising, the pawl 25 is in a defined position to engage with the ratchet 24, and when the coupler 7 is lowering, the pawl 25 is in the disengaged position.

[0067] In some embodiments, each of the first bracket 11 and the second bracket 12 includes a round rod 13, a first support portion 14, a second support portion 15, and a third support portion 16. The length direction of the round rod 13 is orthogonal to the first direction, the first support portion 14 extends in a vertical direction, and the top of the first support portion 14 is connected to the round rod 13, forming a lifting space between the first support portion 14 of the first bracket 11 and the first support portion 14 of the second bracket 12, the top of the second support portion 15 is connected to the round rod 13, the second support portion 15 extends in a direction from top to bottom and is inclined in a direction away from the first support portion 14, and the third support portion 16 is connected between the first support portion 14 and the second support portion 15.

[0068] like Figure 1-Figure 3 As shown, the first bracket 11 and the second bracket 12 have the same structure and are arranged opposite to each other in the left and right directions. Each of the first bracket 11 and the second bracket 12 includes a round rod 13, a first support part 14, a second support part 15 and a third support part 16. The round rod 13 extends in the front-to-back direction and connects multiple lifting belts 3. The round rod 13 can prevent the lifting belt 3 from breaking due to stress concentration at the position where it contacts the round rod 13.

[0069] The top of the first support portion 14 is connected to the round rod 13 and extends vertically from top to bottom. The top of the second support portion 15 is connected to the round rod 13 and extends from top to bottom. It is arranged tilted away from the first support portion 14. The first support portion 14 and the second support portion 15 support the round rod 13, thereby supporting the multiple lifting belts 3. The lifting space is located between the first support portion 14 of the first bracket 11 and the first support portion 14 of the second bracket 12.

[0070] The third support portion 16 extends in the left-right direction, one end of the third support portion 16 is connected to the first support portion 14, and the other end of the third support portion 16 is connected to the second support portion 15, so that the third support portion 16 plays a role in supporting the first support portion 14 and the second support portion 15, thereby improving the stability of the first bracket 11 and the second bracket 12.

[0071] In some embodiments, the first bracket 11 and the second bracket 12 each have at least two second support portions 15, and the at least two second support portions 15 are spaced apart in a direction perpendicular to the first direction, and the rotating member 21 is rotatably disposed on the at least two second support portions 15 of the first bracket 11. Specifically, Figure 1As shown, each of the first bracket 11 and the second bracket 12 has at least two second support portions 15, which are spaced apart in the front-to-back direction. The second support portion 15 at the front end and the second support portion 15 at the rear end of the first bracket 11 are each provided with a sleeve for connecting to the rotating member 21. Each of the first bracket 11 and the second bracket 12 also has at least two first support portions 14 and third support portions 16, which are spaced apart in the front-to-back direction. The at least two first support portions 14 are spaced apart in the front-to-back direction, and the at least two first support portions 14 and the at least two second support portions 15 are arranged in a one-to-one correspondence. A third support portion 16 is provided between each first support portion 14 and the corresponding second support portion 15.

[0072] Each of the first bracket 11 and the second bracket 12 further includes a crossbeam 17, which extends in a direction perpendicular to the first direction and connects the corresponding at least two second support portions 15. The driving member 22 is provided on the crossbeam 17 of the first bracket 11. Specifically, Figure 1 As shown, each of the first bracket 11 and the second bracket 12 further includes a crossbeam 17, which extends in the front-to-back direction. The crossbeam 17 of the first bracket 11 connects at least two second support portions 15 of the first bracket 11, and the crossbeam 17 of the second bracket 12 connects at least two second support portions 15 of the second bracket 12 to enhance the stability of the first bracket 11 and the second bracket 12, and the driving member 22 is provided on the crossbeam 17 of the first bracket 11.

[0073] The second end of the lifting belt 3 is connected to the round rod 13 of the second bracket 12. Specifically, Figure 1-Figure 3 As shown, the second end of the lifting belt 3 is connected to the round rod 13 of the second bracket 12, the first end of the lifting belt 3 passes around the round rod 13 of the first bracket 11 and is connected to the outer circumferential surface of the rotating member 21, and part of the lifting belt 3 is placed on the round rod 13 of the first bracket 11, and during the retraction and extension process of the lifting belt 3, relative sliding occurs with the round rod 13 of the first bracket 11. Therefore, the round rod 13 of the second bracket 12 is used to connect the lifting belt 3, and the round rod 13 of the first bracket 11 plays a role similar to a pulley. In other words, it plays the role of pulling the load, changing the direction of force, and reducing the force.

[0074] Preferably, the first support portion 14, the second support portion 15 and the third support portion 16 are all strip support plates or support rods. It is understood that the first support portion, the second support portion and the third support portion are not limited to Figure 1 In the structure shown, in other embodiments, the first support portion, the second support portion and the third support portion are all support plates extending one end distance in the front-to-back direction. In this case, the first support portion, the second support portion and the third support portion of the first bracket and the second bracket can each be one, and there is no need to set a crossbeam.

[0075] It is understood that the structures of the first bracket and the second bracket are not limited to Figure 1 In other embodiments of the structure shown, the first bracket and the second bracket only need to have a certain height and be spaced apart in the left and right directions to form a lifting space.

[0076] In some embodiments, the unhooking auxiliary device according to the embodiment of the present invention further includes a base 4 , and the first bracket 11 and the second bracket 12 are spaced apart and arranged on the base 4 .

[0077] like Figure 1 As shown, the base 4 includes a base plate and rollers 41. The first bracket 11 and the second bracket 12 are spaced apart on the base plate. At least two rollers 41 are provided at the left and right ends of the base plate respectively, so that the unhooking auxiliary device can move its position under the thrust through the rollers 41.

[0078] It is understandable that the base is not limited to having rollers. In other embodiments, the base does not have rollers, and the unhooking auxiliary device is moved by transportation.

[0079] like Figure 1-Figure 5 As shown, the traction and transportation system of the embodiment of the present invention includes a track 6, a tractor, a transport vehicle and a decoupling auxiliary device.

[0080] The tracks 6 are at least two parallel and spaced apart. Figure 4 and Figure 5 As shown, the rails 6 extend in the front-to-back direction, and at least two rails 6 are spaced apart in the left-to-right direction.

[0081] The tractor is arranged on the track 6, and the tractor has a connecting seat 5, a chain 8 and a latch 9. The connecting seat 5 has a first latch hole adapted to the latch 9. Specifically, as Figure 4 and Figure 5 As shown, the tractor is arranged on two adjacent tracks 6, and a connecting seat 5 and a chain 8 are provided at the rear of the tractor. The connecting seat 5 has a first pin hole that passes through the connecting seat 5 in the vertical direction. The first pin hole is used to cooperate with the connecting pin 9. The rear end surface of the connecting seat 5 is also provided with a slot.

[0082] The transport vehicle is arranged on the track 6, and the end of the transport vehicle facing the tractor is provided with a coupler 7, and the coupler 7 has a second latch hole adapted to the latch 9. Specifically, as Figure 4 and Figure 5 As shown, the transport vehicle is arranged on two adjacent tracks 6, and a coupler 7 is provided at the front end of the transport vehicle. The coupler 7 includes a coupler body and a D-shaped buckle 10 passed through the coupler body. There is a space between the inner wall surface of the D-shaped buckle 10 and the coupler body for the chain 8 to pass through. The coupler body has a second pin hole that passes through the coupler body in a vertical direction, and the second pin hole is used to cooperate with the connecting pin 9.

[0083] The unhooking auxiliary device is an unhooking auxiliary device of an embodiment of the present invention. The unhooking auxiliary device has an in-use position and a standby position. In the in-use position, the unhooking auxiliary device is located between two adjacent rails 6 and between the tractor and the transport vehicle, and the mating portion of the lifting belt 3 carries the coupler 7 for driving the coupler 7 up and down under the drive of the retracting and extending mechanism 2, so that the coupler 7 can be unhooked from the connecting seat 5 through the pin 9 and the chain 8; in the standby position, the unhooking auxiliary device is detached from between the tractor and the transport vehicle.

[0084] Specifically, if Figure 2-Figure 5 As shown, the unhooking auxiliary device has an in-use position and a standby position. In the in-use position, the unhooking auxiliary device is located between two adjacent rails 6 and between the tractor and the transport vehicle. The coupler 7 is located on the mating portion of the lifting belt 3. The two adjacent rails 6 limit the base 4. The unhooking auxiliary device can drive the coupler 7 to move toward and away from the tractor under the push of manual labor or the transport vehicle. In the standby position, the unhooking auxiliary device is disengaged from between the tractor and the transport vehicle. The unhooking auxiliary device is moved between the in-use position and the standby position by manual transportation.

[0085] In the use position, under the drive of the retracting mechanism 2, the matching portion of the lifting belt 3 drives the coupler 7 to rise and fall and makes the matching portion of the lifting belt 3 have a first position and a second position, such as Figure 3 and Figure 5 As shown, in the first position, the coupler 7 and the connecting seat 5 are at the same height. At this time, the coupler body can be inserted into the slot of the connecting seat 5 by moving the unhooking auxiliary device in the front-to-back direction. At this time, the first pin hole and the second pin hole are correspondingly arranged in the vertical direction. The pin 9 can be inserted into the first pin hole and the second pin hole at the same time to connect the coupler 7 and the connecting seat 5. At the same time, the chain 8 can pass through the D-shaped buckle 10 and be wrapped around the coupler body to connect the coupler 7 and the connecting seat 5, so that the coupler 7 and the connecting seat 5 are hooked and connected, so that the tractor and the transport vehicle are connected; similarly, in the first position, the pin 9 can also be taken out from the first pin hole and the second pin hole, and the chain 8 can be driven out of the D-shaped buckle 10 at the same time, and then the unhooking auxiliary device can be moved in the front-to-back direction to disengage the coupler body from the slot of the connecting seat 5, so that the coupler 7 and the connecting seat 5 are unhooked, so that the tractor and the transport vehicle are disconnected. Figure 2 and Figure 4 As shown, in the second position, the coupler 7 is lower than the connecting seat 5 . Preferably, the coupler 7 is supported on a base plate of the base 4 .

[0086] Therefore, when the coupler 7 needs to be coupled, the uncoupling auxiliary device is placed between the tractor and the transport vehicle from the standby position, with the lifting belt 3 in the second position. The transport vehicle is moved to move the coupler 7 to the mating portion, and the lifting belt 3 is retracted by the retracting mechanism 2 to move the lifting belt 3 to the first position. The coupler 7 is inserted into the slot of the connecting seat 5 by moving the uncoupling auxiliary device, and the coupler 7 is connected to the connecting seat 5 by the latch 9 and the chain 8. The uncoupling auxiliary device is then moved to the standby position. When the coupler 7 needs to be uncoupled, the uncoupling auxiliary device is placed between the tractor and the transport vehicle from the standby position, with the lifting belt 3 in the first position. The latch 9 and the chain 8 are then removed. The coupler 7 is disengaged from the slot of the connecting seat 5 by moving the uncoupling auxiliary device, and the lifting belt 3 is released by the retracting mechanism 2 to move the lifting belt 3 from the first position to the second position. The coupler 7 can then be disengaged from the uncoupling auxiliary device by moving the transport vehicle, and the uncoupling auxiliary device can then be moved back to the standby position.

[0087] The traction transport system of an embodiment of the present invention has an unhooking auxiliary device of an embodiment of the present invention. When the unhooking auxiliary device is in the use position between the two rails, it carries the coupler of the transport vehicle and can drive the coupler to move up and down between a first position at the same height as the connecting seat and a second position lower than the connecting seat through a lifting belt. When the coupler needs to be hooked or unhooked, the coupler can be transported through the unhooking auxiliary device, which has higher safety.

[0088] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "top", "bottom", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0089] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0090] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0091] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0092] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0093] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those skilled in the art are all within the scope of protection of the present invention.

Claims

1. A hook-off assisting device, characterized in that: include: A bracket assembly (1), the bracket assembly (1) comprising a first bracket (11) and a second bracket (12), the first bracket (11) and the second bracket (12) being spaced apart in a first direction to form a lifting space; a retractable mechanism (2), the retractable mechanism (2) being arranged on the first bracket (11), the retractable mechanism (2) comprising a winding assembly, the winding assembly comprising a rotating member (21) and a driving member (22), the rotating member (21) being rotatably arranged on the first bracket (11), the driving member (22) being arranged on the first bracket (11), the driving member (22) being connected to the rotating member (21) to drive the rotating member (21) to rotate relative to the first bracket (11); A lifting belt (3), wherein the lifting belt (3) has a matching portion, wherein the matching portion is located in the lifting space and is suitable for matching with the coupler (7), the first end of the lifting belt (3) is connected to the rotating member (21), and the second end of the lifting belt (3) is connected to the second bracket (12), so that the winding assembly can wind and release the lifting belt (3), so that the retracting mechanism (2) can retract part of the lifting belt (3) to make the coupler (7) rise and release part of the lifting belt (3) to make the coupler (7) fall.

2. The unhooking auxiliary device according to claim 1, characterized in that: The axial direction of the rotating member (21) is orthogonal to the first direction, and the lifting belts (3) are provided in plurality, and the plurality of lifting belts (3) are arranged at intervals along the axial direction of the rotating member (21).

3. The unhooking auxiliary device according to claim 1, characterized in that: The driving member (22) has a driving shaft, and the axial direction of the rotating member (21) is arranged parallel to the axial direction of the driving shaft; The winding assembly further comprises a transmission group (23), wherein the transmission group (23) comprises: a first transmission member, the first transmission member being arranged on the outer peripheral surface of the rotating member (21); A second transmission member is provided on the outer peripheral surface of the driving shaft, and the second transmission member is connected to the first transmission member.

4. The unhooking auxiliary device according to claim 1, characterized in that: The winding assembly further comprises: a ratchet (24), the ratchet (24) being arranged on the rotating member (21); A pawl (25) is provided on the first bracket (11), and the pawl (25) has a limited position and a disengagement position. In the limited position, the pawl (25) cooperates with the ratchet (24) to enable the ratchet (24) and the rotating member (21) to rotate in one direction. In the disengagement position, the ratchet (24) and the pawl (25) are disengaged.

5. The unhooking auxiliary device according to any one of claims 1 to 4, characterized in that: Each of the first bracket (11) and the second bracket (12) comprises: a round rod (13), wherein the length direction of the round rod (13) is orthogonal to the first direction; a first support portion (14), the first support portion (14) extending in a vertical direction, the top of the first support portion (14) being connected to the round rod (13), and the lifting space being formed between the first support portion (14) of the first bracket (11) and the first support portion (14) of the second bracket (12); a second support portion (15), wherein the top of the second support portion (15) is connected to the round rod (13), and the second support portion (15) extends in a direction from top to bottom and is tilted in a direction away from the first support portion (14); A third support portion (16), wherein the third support portion (16) is connected between the first support portion (14) and the second support portion (15).

6. The unhooking auxiliary device according to claim 5, characterized in that: The first bracket (11) and the second bracket (12) each have at least two second support portions (15), the at least two second support portions (15) being arranged at intervals in a direction orthogonal to the first direction, and the rotating member (21) being rotatably provided on the at least two second support portions (15) of the first bracket (11); Each of the first bracket (11) and the second bracket (12) further comprises a crossbeam (17), the crossbeam (17) extending in a direction orthogonal to the first direction and connecting the corresponding at least two second support portions (15), and the driving member (22) is provided on the crossbeam (17) of the first bracket (11); The second end of the lifting belt (3) is connected to the round rod (13) of the second bracket (12).

7. The unhooking auxiliary device according to any one of claims 1 to 4, characterized in that: It also includes a base (4), and the first bracket (11) and the second bracket (12) are arranged on the base (4) at intervals.

8. A traction transport system, characterized in that: include: Tracks (6), the tracks (6) being at least two parallel and spaced apart; A tractor, the tractor being arranged on the track (6), the tractor comprising a connecting seat (5), a chain (8) and a latch (9), the connecting seat (5) having a first latch hole adapted to the latch (9); A transport vehicle, the transport vehicle being arranged on the track (6), the transport vehicle having a coupler (7) at one end facing the tractor, the coupler (7) having a second latch hole adapted to the latch (9); An unhooking auxiliary device, the unhooking auxiliary device is the unhooking auxiliary device according to any one of claims 1 to 7, the unhooking auxiliary device has a use position and a standby position, in the use position, the unhooking auxiliary device is located between two adjacent rails (6) and between the tractor and the transport vehicle, and the matching portion of the lifting belt (3) carries the coupler (7) for driving the coupler (7) up and down under the drive of the retracting mechanism (2), so that the coupler (7) can be unhooked from the connecting seat (5) through the pin (9) and the chain (8); in the standby position, the unhooking auxiliary device is disengaged from between the tractor and the transport vehicle.

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