A movable winding machine

Abstract

The present invention discloses a movable winding machine, comprising a supporting platform plate, a control box, a battery pack, four supporting rollers, a rotating drive mechanism, a roller pitch electric adjustment mechanism, two tail roller mechanisms, a direction roller mechanism and a speed measuring terminal. The movable winding machine can realize the stable support of the supporting platform plate by using two tail roller mechanisms and a direction roller mechanism, and can be conveniently dragged and moved; the roller pitch electric adjustment mechanism can be used to adjust the spacing of the four supporting rollers as needed, so as to meet the support needs of various types of supporting cable drums; the rotating drive mechanism can be used to rotate the supporting rollers, so as to drive the supporting cable drum to rotate to release the cable.

Description

Technical Field

[0001] The invention relates to a wire winding machine, in particular to a movable wire winding machine. Background Art

[0002] At present, in the cable laying construction process, most of the tools used to fix the cable drums are still simple non-powered brackets. This bracket is light and flexible, and is more suitable for laying cables on small cable drums below 2 tons, but it is relatively cramped and lacks stability for larger cable drums above 2 tons. In addition, because there is no automated power device, the laying process relies heavily on the labor intensity and proficiency of the operators, which is prone to accidents. Summary of the invention

[0003] Purpose of the invention: To provide a movable winding machine which can realize automatic cable laying and can be conveniently dragged and moved.

[0004] Technical solution: The movable winding machine described in the present invention includes a supporting platform plate, a control box, a battery pack, four supporting rollers, a rotating drive mechanism, an electric roller distance adjustment mechanism, two tail roller mechanisms and a direction roller mechanism;

[0005] The roller pitch electric adjustment mechanism is fixedly mounted on the upper side of the support platform plate; four support rollers are rotatably mounted on the roller pitch electric adjustment mechanism, and the four support rollers are distributed in a rectangular array, and the roller pitch electric adjustment mechanism adjusts the spacing of the four support rollers; a rotary drive mechanism is mounted on the roller pitch electric adjustment mechanism, and is used to rotationally drive two of the support rollers located on the coaxial line; a control box is fixedly mounted on the edge of the upper side of the support platform plate, and is used to drive and control the rotary drive mechanism and the roller pitch electric adjustment mechanism; a battery pack is fixedly mounted on the lower side of the support platform plate, and is used to power the control box; two tail roller mechanisms are fixedly mounted on the lower side of the left end of the support platform plate, and are used to stably support the left end of the support platform plate; a direction roller mechanism is mounted on the lower side of the right end of the support platform plate, and is used to adjust the moving direction of the right end of the support platform plate; a traction rod is mounted on the direction roller mechanism, and a traction locking pin hole is provided at the traction end of the traction rod.

[0006] Furthermore, the roller pitch electric adjustment mechanism includes four roller mounting plates, two strip bottom plates, four pairs of longitudinal slide rails, four pairs of transverse slide rails, a rotary drive motor, a rotary drive reducer, a transverse drive motor, a transverse drive reducer, a longitudinal drive motor, a longitudinal drive reducer and a transverse adjustment screw; the four pairs of transverse slide rails are all transversely fixedly installed on the upper side of the support platform plate, and the four pairs of transverse slide rails are distributed in a rectangular array; the two strip bottom plates are both longitudinally arranged above the support platform plate, and are slidably installed on the two pairs of transverse slide rails on the left and the two pairs of transverse slide rails on the right through the guide sliders arranged on the lower side; the four The longitudinal slide rails are longitudinally mounted on the upper side surfaces at both ends of the two strip bottom plates; the four support rollers are rotatably mounted on the four roller mounting plates through their respective roller supports; a track slide bar slidably mounted on the longitudinal slide rails at the corresponding positions is arranged below the roller mounting plates; the rotary drive motor and the rotary drive reducer are both fixedly mounted in the middle of the left strip bottom plate, and the output shaft of the rotary drive motor is connected to the input shaft of the rotary drive reducer; a rotary output sleeve is fixedly mounted on the two output shafts of the rotary drive reducer, and the two rotary output sleeves are located on the same longitudinal axis; the two support rollers on the left A rotating synchronous rod is longitudinally installed on each of the opposite shaft head ends, and the two rotating synchronous rods are respectively inserted into two rotating output sleeves; a rotating synchronous sliding groove is longitudinally arranged on the rotating synchronous rod, and a rotating synchronous convex block that is slidably embedded in the rotating synchronous sliding groove is arranged on the inner wall of the rotating output sleeve; a commutator is fixedly installed in the middle of the right side of the left strip bottom plate, and a longitudinal adjusting screw is longitudinally installed on the two output shaft ends of the commutator; the longitudinal driving reducer is fixedly installed in the middle of the right side of the right strip bottom plate, and the output shaft of the longitudinal driving motor is connected to the input shaft of the longitudinal driving reducer; The longitudinal drive reducer is provided with two longitudinal output shafts and one transverse output shaft, a longitudinal adjustment screw is butt-mounted on each of the two longitudinal output shafts, and a transverse transmission rod is butt-mounted on the transverse output shaft; the thread rotation direction of the two longitudinal adjustment screws on the front side is opposite to that of the two longitudinal adjustment screws on the rear side; a transverse transmission sleeve is butt-mounted on the input shaft of the commutator; the end of the transverse transmission rod is inserted into the transverse transmission sleeve; a transverse guide slot is transversely arranged on the rod wall of the transverse transmission rod, and a transverse guide slider which is slidably embedded in the transverse guide slot is arranged on the inner wall of the transverse transmission sleeve;

[0007] A longitudinal drive support is fixedly arranged on the right side of each of the four roller mounting plates, and a longitudinal drive threaded hole is arranged on the longitudinal drive support; four longitudinal adjustment screws are respectively threadedly screwed and installed on the longitudinal drive threaded holes of the four longitudinal drive supports; the middle part of the transverse adjustment screw is transversely rotatably installed on the support platform plate through the central support, and the threads at the left and right ends of the transverse adjustment screw are in opposite directions; a transverse drive support is arranged on the lower side surfaces of each of the two strip bottom plates, and a transverse drive threaded hole is arranged on the transverse drive support; the left and right ends of the transverse adjustment screw are respectively threadedly screwed and installed on the transverse drive threaded holes of the two transverse drive supports; the transverse drive motor and the transverse drive reducer are both installed on the support platform plate, the output shaft of the transverse drive motor is connected to the input shaft of the transverse drive reducer, and the output shaft of the transverse drive reducer is connected to the end of the transverse adjustment screw;

[0008] A controller, a power module, a transverse drive circuit, a longitudinal drive circuit and a rotation drive circuit are arranged in the control box; a transverse increase button, a transverse decrease button, a longitudinal increase button, a longitudinal decrease button, a speed increase button and a speed decrease button are arranged on the front side of the control box; the controller is electrically connected to the transverse drive circuit, the longitudinal drive circuit, the rotation drive circuit, the transverse increase button, the transverse decrease button, the longitudinal increase button, the longitudinal decrease button, the speed increase button and the speed decrease button respectively; the transverse drive circuit is electrically connected to the transverse drive motor, and the controller drives the transverse drive motor to rotate through the transverse drive circuit; the longitudinal drive circuit is electrically connected to the longitudinal drive motor, and the controller drives the longitudinal drive motor to rotate through the longitudinal drive circuit; the rotation drive circuit is electrically connected to the rotation drive motor, and the controller drives the rotation drive motor to rotate through the rotation drive circuit; the battery pack supplies power to the controller, the transverse drive circuit, the longitudinal drive circuit, the rotation drive circuit, the transverse increase button, the transverse decrease button, the longitudinal increase button, the longitudinal decrease button, the speed increase button and the speed decrease button respectively through the power module.

[0009] Furthermore, a display screen electrically connected to the controller is provided on the front side of the control box; the battery pack supplies power to the display screen through the power module.

[0010] Furthermore, a lifting drive mechanism is provided in the middle of the front and rear sides of the supporting platform plate; the lifting drive mechanism includes a lifting drive screw, a lifting drive slider, a lifting guide square tube and a lifting support sleeve; the lifting guide square tubes of the two lifting drive mechanisms are respectively vertically fixedly installed in the middle of the front and rear sides of the supporting platform plate, and the lifting support sleeve is slidably sleeved on the lifting guide square tube; the lifting drive screw is vertically rotatably installed in the lifting guide square tube; the lifting drive slider is slidably installed in the lifting guide square tube, and a lifting drive threaded hole is provided on the lifting drive slider; the lifting drive screw is threadedly screwed and installed on the lifting drive threaded hole; two lifting guide strip holes are vertically provided on the tube wall of the lifting guide square tube, and two connecting blocks extending out of the two lifting guide strip holes are provided on the lifting drive slider; the connecting block is fixedly installed on the inner wall of the lifting support sleeve; the lower ends of the lifting drive screws of the two lifting drive mechanisms penetrate the supporting A platform plate, and a driven bevel gear is fixedly installed on the through end; a synchronous drive shaft is rotatably installed on the lower side of the supporting platform plate through the lower side support; two active bevel gears respectively meshing with two driven bevel gears are fixedly arranged on the synchronous drive shaft; a lifting drive motor is fixedly installed on the lower side of the supporting platform plate, and the output shaft of the lifting drive motor is connected to the end of the synchronous drive shaft; a side support seat is arranged on the side of the lifting support sleeve, and a U-shaped groove for supporting the central axis of the cable drum is arranged on the upper side of the side support seat; an up button and a down button electrically connected to the controller are arranged on the front side of the control box; a lifting drive circuit electrically connected to the controller is arranged in the control box; the lifting drive circuit is electrically connected to the lifting drive motor, and the controller drives the lifting drive motor to rotate through the lifting drive circuit; the battery pack supplies power to the up button, the down button and the lifting drive circuit through the power module.

[0011] Furthermore, a roller mounting groove is arranged on the inner wall of the U-shaped groove, and three supporting rollers for supporting the central axis of the cable drum are installed at the roller mounting groove; a limit baffle is vertically arranged at the left and right groove edges of the U-shaped groove; a damping adjustment mechanism is arranged on the upper side edge of the limit baffle, which is used to limit the inertial rotation of the central axis of the cable drum.

[0012] Furthermore, the damping adjustment mechanism includes a first strip-shaped pressing plate, a force adjustment bolt, a stable pressing plate, a supporting compression spring, a pressing seat and a friction pad; one end of the first strip-shaped pressing plate is swingably hingedly mounted on the upper side of the limit baffle on the left side through a plate end hinge seat; the force adjustment bolt is threadedly screwed into the middle part of the first strip-shaped pressing plate, and the screw end of the force adjustment bolt is rotatably mounted on one side of the stable pressing plate; a pressing guide column is provided on the other side of the stable pressing plate, and a guide limiting groove is provided on the rod wall of the pressing guide column; a pressing guide tube is provided on the top surface of the pressing seat, and the pressing guide tube is sleeved on the end of the pressing guide column, and is A guide limit block that is slidably embedded in the guide limit groove is arranged on the tube wall of the tube; a support compression spring is elastically supported between the stable pressing plate and the pressing seat; an arc-shaped groove is arranged on the bottom surface of the pressing seat, and a friction pad is installed on the arc-shaped groove; two locking columns are rotatably installed on the upper side edge of the right limit baffle, and a pressing locking rod is vertically arranged on the upper end of the locking column; a rotation locking hole is arranged on the stable pressing plate, and a rotation locking rod that is slidably inserted in the rotation locking hole is arranged on the first strip pressing plate; after the end of the first strip pressing plate is flipped and pressed onto the upper side edge of the right limit baffle, the rotation locking column causes the pressing locking rod to press on the end of the first strip pressing plate.

[0013] Furthermore, the tail roller mechanism includes a tail walking wheel, two side support plates, a clamping locking screw and two strip brake plates; the two side support plates are vertically mounted on the lower side of the support platform plate, and the tail walking wheel is rotatably mounted between the two side support plates through a wheel axle; two swing hinge shafts are arranged between the two side support plates and above the tail walking wheel; the upper ends of the two strip brake plates are swing-hinged and mounted on the two swing hinge shafts respectively, and a brake pad for pressing on the wheel surface of the tail walking wheel is arranged on the side of the lower end of the two strip brake plates; a pulling groove is arranged at the upper end of the two strip brake plates, and a pulling rotating shaft is rotatably mounted in the two pulling grooves; a pulling threaded hole is arranged in the middle part of one pulling rotating shaft, and the middle part of the clamping locking screw is rotatably mounted on the other pulling rotating shaft; one end of the clamping locking screw is threadedly mounted on the pulling threaded hole, and the other end is fixedly mounted with a brake crank.

[0014] Furthermore, the steering roller mechanism includes a steering roller, a roller support plate and two roller mounting side plates; a rotating support column is arranged on the upper side surface of the roller support plate, and the upper end of the rotating support column is rotatably mounted on the middle part of the lower side surface of the right end of the supporting platform plate; the two roller mounting side plates are vertically mounted on the lower side surface of the roller support plate; the steering roller is rotatably mounted between the two roller mounting side plates; a rectangular notch is arranged on the side of the roller support plate, and a towing articulated seat is arranged on the lower side surface of the roller support plate and close to the rectangular notch; the traction rod is swingably articulated and mounted on the towing articulated seat.

[0015] Furthermore, a brake plate pin is rotatably installed between the two roller mounting side plates, and a second strip pressing plate is fixedly installed on the brake plate pin; a brake friction pad is arranged on the side of the second strip pressing plate opposite to the direction roller, an extrusion protrusion is arranged on the other side of the second strip pressing plate, and an extrusion slope is arranged on the extrusion protrusion; a direction locking slot is arranged in the middle of the right side of the supporting platform plate; a rebound torsion spring is sleeved on the shaft head of the brake plate pin, and one end torsion arm of the rebound torsion spring is fixed on the roller mounting side plate, and the other end torsion arm is fixed on the brake plate pin, for twisting the second strip pressing plate away from the direction roller; a brake extrusion screw is threadedly installed on the traction rod, a handle rod is vertically arranged at one end of the brake extrusion screw, and a hemispherical end head for pressing on the extrusion slope is arranged at the other end; the dragging hinge seat is located between the traction locking pin hole and the brake extrusion screw, and when the hemispherical end head is pressed on the extrusion slope, the traction rod swings and is embedded in the direction locking slot.

[0016] Compared with the prior art, the present invention has the following beneficial effects: two tail roller mechanisms and a direction roller mechanism can be used to achieve stable support of the support platform plate, and can be conveniently dragged and moved; the roller spacing electric adjustment mechanism can be used to adjust the spacing between four support rollers as needed, thereby meeting the support needs of various types of support cable drums; the rotation drive mechanism can be used to rotationally drive the support rollers, thereby driving the support cable drum to rotate and release the cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front structural schematic diagram of the winding machine of the present invention when in use;

[0018] Figure 2 It is a schematic diagram of the top view of the winding machine of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the damping adjustment mechanism of the present invention;

[0020] Figure 4 It is a schematic diagram of the lifting drive structure of the present invention;

[0021] Figure 5It is a schematic diagram of the circuit structure of the present invention. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0023] like Figure 1-5 As shown, the movable winding machine of the present invention comprises: a supporting platform plate 1, a control box 23, a battery pack 69, four supporting rollers 42, a rotating drive mechanism, an electric roller distance adjustment mechanism, two tail roller mechanisms and a direction roller mechanism;

[0024] The roller pitch electric adjustment mechanism is fixedly mounted on the upper side of the support platform plate 1; four support rollers 42 are rotatably mounted on the roller pitch electric adjustment mechanism, and the four support rollers 42 are distributed in a rectangular array, and the roller pitch electric adjustment mechanism adjusts the spacing between the four support rollers 42; a rotary drive mechanism is mounted on the roller pitch electric adjustment mechanism, and is used to rotationally drive two of the support rollers 42 located on the coaxial line; a control box 23 is fixedly mounted at the edge of the upper side of the support platform plate 1, and is used to drive and control the rotary drive mechanism and the roller pitch electric adjustment mechanism; a battery pack 69 is fixedly mounted on the lower side of the support platform plate 1, and is used to power the control box 23; two tail roller mechanisms are fixedly mounted on the lower side of the left end of the support platform plate 1, and are used to stably support the left end of the support platform plate 1; a direction roller mechanism is mounted on the lower side of the right end of the support platform plate 1, and is used to adjust the moving direction of the right end of the support platform plate 1; a traction rod 48 is mounted on the direction roller mechanism, and a traction locking pin hole 49 is provided at the traction end of the traction rod 48.

[0025] Two tail roller mechanisms and one direction roller mechanism can be used to achieve stable support of the support platform plate 1, and can be conveniently dragged and moved; the roller spacing electric adjustment mechanism can be used to adjust the spacing between the four support rollers 42 as needed, thereby meeting the support needs of various types of support cable reels 88; the rotation drive mechanism can be used to rotationally drive the support roller 42, thereby driving the support cable reel 88 to rotate to release the cable.

[0026] Furthermore, the roller pitch electric adjustment mechanism includes four roller mounting plates 37, two strip bottom plates 35, four pairs of longitudinal slide rails 36, four pairs of transverse slide rails 24, a rotary drive motor 27, a rotary drive reducer 30, a transverse drive motor 25, a transverse drive reducer 28, a longitudinal drive motor 26, a longitudinal drive reducer 29 and a transverse adjustment screw 31; the four pairs of transverse slide rails 24 are all transversely fixedly installed on the upper side of the support platform plate 1, and the four pairs of transverse slide rails 24 are distributed in a rectangular array; the two strip bottom plates 35 are both longitudinally arranged above the support platform plate 1, and are respectively slidably installed on the two pairs of transverse slide rails 24 on the left and the two pairs of transverse slide rails 2 on the right through the guide rail sliders 66 arranged on the lower side. 4; four pairs of longitudinal slide rails 36 are longitudinally mounted on the upper side surfaces at both ends of the two strip bottom plates 35; four support rollers 42 are rotatably mounted on the four roller mounting plates 37 through their respective roller supports 38; a track slide bar 70 slidably mounted on the longitudinal slide rails 36 at corresponding positions is provided below the roller mounting plates 37; the rotary drive motor 27 and the rotary drive reducer 30 are both fixedly mounted in the middle of the strip bottom plate 35 on the left, and the output shaft of the rotary drive motor 27 is connected to the input shaft of the rotary drive reducer 30; a rotary output sleeve 39 is fixedly mounted on the two output shafts of the rotary drive reducer 30, and the two rotary output sleeves 39 are located on the same longitudinal axis; on the left two A rotation synchronization rod 40 is longitudinally installed on the opposite shaft head end of the support roller 42, and the two rotation synchronization rods 40 are respectively inserted into the two rotation output sleeves 39; a rotation synchronization groove 41 is longitudinally arranged on the rotation synchronization rod 40, and a rotation synchronization protrusion 77 that is slidably embedded in the rotation synchronization groove 41 is arranged on the inner wall of the rotation output sleeve 39; a commutator 33 is fixedly installed in the middle of the right side of the left strip bottom plate 35, and a longitudinal adjustment screw 34 is longitudinally installed on the two output shaft ends of the commutator 33; the longitudinal drive reducer 29 is fixedly installed in the middle of the right side of the right strip bottom plate 35, and the output shaft of the longitudinal drive motor 26 is connected to the input of the longitudinal drive reducer 29 The shafts are connected; the longitudinal drive reducer 29 is provided with two longitudinal output shafts and a transverse output shaft, a longitudinal adjustment screw 34 is butt-jointedly installed on the two longitudinal output shafts, and a transverse transmission rod 46 is butt-jointedly installed on the transverse output shaft; the two longitudinal adjustment screws 34 on the front side have opposite thread rotation directions to the two longitudinal adjustment screws 34 on the rear side; a transverse transmission sleeve 45 is butt-jointedly installed on the input shaft of the commutator 33; the end of the transverse transmission rod 46 is inserted into the transverse transmission sleeve 45; a transverse guide slot 47 is transversely arranged on the rod wall of the transverse transmission rod 46, and a transverse guide slider 44 is slidably embedded in the transverse guide slot 47 on the inner wall of the transverse transmission sleeve 45;

[0027] A longitudinal drive support 43 is fixedly arranged on the right side of the four roller mounting plates 37, and a longitudinal drive threaded hole is arranged on the longitudinal drive support 43; four longitudinal adjustment screws 34 are respectively threadedly screwed and installed on the longitudinal drive threaded holes of the four longitudinal drive supports 43; the middle part of the transverse adjustment screw 31 is transversely rotatably installed on the support platform plate 1 through the central support 32, and the thread rotation directions of the left and right ends of the transverse adjustment screw 31 are opposite; a transverse drive support is arranged on the lower side surface of the two strip bottom plates 35, and a transverse drive threaded hole is arranged on the transverse drive support; the left and right ends of the transverse adjustment screw 31 are respectively threadedly screwed and installed on the transverse drive threaded holes of the two transverse drive supports; the transverse drive motor 25 and the transverse drive reducer 28 are both installed on the support platform plate 1, the output shaft of the transverse drive motor 25 is connected to the input shaft of the transverse drive reducer 28, and the output shaft of the transverse drive reducer 28 is connected to the end of the transverse adjustment screw 31;

[0028] A controller, a power module, a lateral drive circuit, a longitudinal drive circuit and a rotation drive circuit are arranged in the control box 23; a lateral increase button 71, a lateral decrease button 72, a longitudinal increase button 73, a longitudinal decrease button 74, a speed increase button 97 and a speed decrease button 98 are arranged on the front side of the control box 23; the controller is electrically connected to the lateral drive circuit, the longitudinal drive circuit, the rotation drive circuit, the lateral increase button 71, the lateral decrease button 72, the longitudinal increase button 73, the longitudinal decrease button 74, the speed increase button 97 and the speed decrease button 98 respectively; the lateral drive circuit is electrically connected to the lateral drive motor 25, The controller drives the lateral drive motor 25 to rotate through the lateral drive circuit; the longitudinal drive circuit is electrically connected to the longitudinal drive motor 26, and the controller drives the longitudinal drive motor 26 to rotate through the longitudinal drive circuit; the rotational drive circuit is electrically connected to the rotational drive motor 27, and the controller drives the rotational drive motor 27 to rotate through the rotational drive circuit; the battery pack 69 supplies power to the controller, the lateral drive circuit, the longitudinal drive circuit, the rotational drive circuit, the lateral increase button 71, the lateral decrease button 72, the longitudinal increase button 73, the longitudinal decrease button 74, the speed increase button 97 and the speed decrease button 98 through the power module.

[0029] The rotation synchronization structure composed of the rotation output sleeve 39, the rotation synchronization rod 40, the rotation synchronization groove 41 and the rotation synchronization protrusion 77 can keep the two left support rollers 42 rotating synchronously during longitudinal adjustment; the four longitudinal adjustment screws 34, the transverse transmission rod 46, the transverse transmission sleeve 45, the transverse guide groove 47 and the transverse guide slider 44 constitute the synchronous longitudinal adjustment drive of the four support rollers 42, and the transverse adjustment screw 31, the two transverse drive supports and the center support 32 constitute the transverse adjustment mechanism, which can synchronously adjust and position the transverse distance between the left and right strip bottom plates 35.

[0030] Furthermore, a display screen 79 electrically connected to the controller is provided on the front side of the control box 23; the battery pack 69 supplies power to the display screen 79 through the power module. The display screen 79 can display the cable release speed in real time.

[0031] Furthermore, a lifting drive mechanism is provided in the middle of the front and rear sides of the support platform plate 1; the lifting drive mechanism includes a lifting drive screw 95, a lifting drive slider 94, a lifting guide square tube 2 and a lifting support sleeve 3; the lifting guide square tubes 2 of the two lifting drive mechanisms are respectively vertically fixedly installed in the middle of the front and rear sides of the support platform plate 1, and the lifting support sleeve 3 is slidably sleeved on the lifting guide square tube 2; the lifting drive screw 95 is vertically rotatably installed in the lifting guide square tube 2; the lifting drive slider 94 is slidably installed in the lifting guide square tube 2, and a lifting drive threaded hole is provided on the lifting drive slider 94; the lifting drive screw 95 is threadedly screwed on the lifting drive threaded hole; two lifting guide strip holes 90 are vertically provided on the tube wall of the lifting guide square tube 2, and two connecting blocks 96 extending out of the two lifting guide strip holes 90 are provided on the lifting drive slider 94; the connecting block 96 is fixedly installed on the inner wall of the lifting support sleeve 3; the lower ends of the lifting drive screws 95 of the two lifting drive mechanisms pass through the support platform plate 1, and A driven bevel gear 92 is fixedly mounted on the through end; a synchronous drive shaft 93 is rotatably mounted on the lower side surface of the support platform plate 1 through the lower side support 67; two active bevel gears 91 respectively meshing with the two driven bevel gears 92 are fixedly mounted on the synchronous drive shaft 93; a lifting drive motor 68 is fixedly mounted on the lower side surface of the support platform plate 1, and the output shaft of the lifting drive motor 68 is connected to the end of the synchronous drive shaft 93; a side support seat 4 is arranged on the side of the lifting support sleeve 3, and a U-shaped notch 5 for supporting the central axis 89 of the cable drum 88 is arranged on the upper side of the side support seat 4; an up button 75 and a down button 76 electrically connected to the controller are arranged on the front side surface of the control box 23; a lifting drive circuit electrically connected to the controller is arranged in the control box 23; the lifting drive circuit is electrically connected to the lifting drive motor 68, and the controller drives the lifting drive motor 68 to rotate through the lifting drive circuit; the battery pack 69 supplies power to the up button 75, the down button 76 and the lifting drive circuit through the power module. By utilizing the lifting drive mechanism, when the side disc of the cable drum 88 is damaged and the support roller 42 cannot support it, the cable drum 88 can be lifted by supporting the two ends of the central axis 89, so that the cable can be pulled by external force to release the cable; by utilizing the synchronous drive shaft 93, two lifting drive screws 95, two lifting drive sliders 94, two driven bevel gears 92 and two active bevel gears 91, the synchronous lifting drive of the two lifting support sleeves 3 can be achieved to ensure the stability of the lifting of the cable drum 88; the U-shaped notch 5 can stably support the central axis 89 of the cable drum 88.

[0032] Furthermore, a roller installation groove 7 is provided on the inner wall of the U-shaped groove 5, and three supporting rollers 6 for supporting the central axis 89 of the cable drum 88 are installed at the roller installation groove 7; a limit baffle 13 is vertically provided at the left and right groove edges of the U-shaped groove 5; a damping adjustment mechanism is provided on the upper side edge of the limit baffle 13 to limit the inertial rotation of the central axis 89 of the cable drum 88. The support rollers 6 installed in the roller installation groove 7 can reduce the friction resistance of the central axis 89 of the cable drum 88 during rotation; the damping adjustment mechanism can controllably adjust the rotation resistance of the central axis 89, thereby adjusting the rotation inertia of the cable drum 88 as needed.

[0033] Furthermore, the damping adjustment mechanism includes a first strip-shaped pressing plate 9, a force adjustment bolt 15, a stabilizing pressing plate 16, a support compression spring 21, a pressing seat 20 and a friction pad 10; one end of the first strip-shaped pressing plate 9 is swingably hingedly mounted on the upper side of the left limit baffle 13 through a plate end hinge seat 8; the force adjustment bolt 15 is threadedly screwed into the middle part of the first strip-shaped pressing plate 9, and the screw end of the force adjustment bolt 15 is rotatably mounted on one side of the plate surface of the stabilizing pressing plate 16; a pressing guide column 19 is provided on the other side of the plate surface of the stabilizing pressing plate 16, and a guide limiting groove 22 is provided on the rod wall of the pressing guide column 19; a pressing guide tube 18 is provided on the top surface of the pressing seat 20, and the pressing guide tube 18 is sleeved on the end of the pressing guide column 19, and A guide limit block 78 is provided on the wall of the tube 18, which is slidably embedded in the guide limit groove 22; the support compression spring 21 is elastically supported between the stable pressing plate 16 and the pressing seat 20; an arc-shaped groove is provided on the bottom surface of the pressing seat 20, and the friction pad 10 is installed on the arc-shaped groove; two locking columns 12 are rotatably installed on the upper side edge of the right-side limit baffle 13, and a pressing locking rod 11 is vertically provided at the upper end of the locking column 12; a rotation locking hole is provided on the stable pressing plate 16, and a rotation locking rod 17 slidably inserted in the rotation locking hole is provided on the first strip pressing plate 9; after the end of the first strip pressing plate 9 is flipped and pressed onto the upper side edge of the right-side limit baffle 13, the rotation locking column 12 causes the pressing locking rod 11 to press on the end of the first strip pressing plate 9. The pressing force can be adjusted as needed through the force adjustment bolt 15, so as to apply different friction resistances to the center shaft 89 to change the rotational inertia of the center shaft 89; the support compression spring 21 is used to make the pressing force an elastic force rather than a rigid force; the friction pad 10 can enhance the friction performance; the two locking columns 12 can be used to rotationally lock the stable pressing plate 16.

[0034] Furthermore, the tail roller mechanism includes a tail running wheel 83, two side support plates 80, a clamping locking screw 86 and two strip brake plates 81; the two side support plates 80 are vertically installed on the lower side of the support platform plate 1, and the tail running wheel 83 is rotatably installed between the two side support plates 80 through the wheel axle 14; two swing hinge shafts are arranged between the two side support plates 80 and above the tail running wheel 83; the upper ends of the two strip brake plates 81 are swing-hinged and installed on the two swing hinge shafts respectively, and the two strip brake plates A brake pad 82 for pressing on the wheel surface of the tail running wheel 83 is arranged on the side surface of the lower end of the plate 81; a pull groove 84 is arranged on the upper end of the two strip-shaped brake plates 81, and a pull shaft 87 is rotatably installed in the two pull grooves; a pull threaded hole is arranged in the middle of one pull shaft 87, and the middle of the clamping and locking screw 86 is rotatably installed on the other pull shaft 87; one end of the clamping and locking screw 86 is threadedly screwed on the pull threaded hole, and a brake crank 85 is fixedly installed on the other end. The clamping and locking screw 86, the two strip-shaped brake plates 81 and the brake crank 85 constitute the tail brake structure, which can brake and fix the tail running wheel 83 to prevent position movement during the use of cable release.

[0035] Furthermore, the direction roller mechanism includes a direction roller 57, a roller support plate 53 and two roller mounting side plates 56; a rotating support column 55 is arranged on the upper side surface of the roller support plate 53, and the upper end of the rotating support column 55 is rotatably mounted on the middle part of the lower side surface of the right end of the supporting platform plate 1; the two roller mounting side plates 56 are vertically mounted on the lower side surface of the roller support plate 53; the direction roller 57 is rotatably mounted between the two roller mounting side plates 56; a rectangular slot 65 is arranged on the side of the roller support plate 53, and a dragging articulated seat 52 is arranged on the lower side surface of the roller support plate 53 and close to the rectangular slot 65; the traction rod 48 is swingably articulated and mounted on the dragging articulated seat 52. A roller structure whose direction can be adjusted according to the traction of the traction rod 48 is formed by using a roller support plate 53, a rotating support column 55, a roller mounting side plate 56, a towing articulated seat 52 and a direction roller 57, so that the walking direction can be adjusted during traction movement; the rectangular notch 65 can facilitate the traction rod 48 to swing upward, thereby meeting the traction requirements of the traction rod 48 at different angles.

[0036] Furthermore, a brake plate pin shaft 58 is rotatably installed between the two roller mounting side plates 56, and a second strip pressing plate 60 is fixedly installed on the brake plate pin shaft 58; a brake friction pad 61 is arranged on the side of the second strip pressing plate 60 opposite to the roller 57, an extrusion protrusion 62 is arranged on the other side of the second strip pressing plate 60, and an extrusion slope 64 is arranged on the extrusion protrusion 62; a direction locking notch 54 is arranged in the middle of the right side of the support platform plate 1; a rebound torsion spring 59 is sleeved on the shaft head of the brake plate pin shaft 58, and one end of the rebound torsion spring 59 is a torsion arm It is fixed on the roller mounting side plate 56, and the other end of the torsion arm is fixed on the brake plate pin 58, which is used to twist the second strip pressing plate 60 away from the direction roller 57; a brake extrusion screw 50 is threadedly installed on the traction rod 48, and a handle rod 51 is vertically arranged at one end of the brake extrusion screw 50, and a hemispherical end 63 for pressing on the extrusion slope 64 is arranged at the other end; the towing hinge seat 52 is located between the traction locking pin hole 49 and the brake extrusion screw 50. When the hemispherical end 63 is pressed on the extrusion slope 64, the traction rod 48 swings and is embedded in the direction locking slot 54. By utilizing the matching arrangement of the second strip pressing plate 60, the brake friction pad 61, the extrusion protrusion 62 and the brake extrusion screw 50, the brake extrusion screw 50 can be used to press the extrusion protrusion 62, so that the brake friction pad 61 presses on the direction roller 57 to brake, thereby ensuring stability during cable release; since the axle of the direction roller 57 is not designed to be directly below the rotating support column 55, the traction rod 48 is swung and embedded in the direction locking groove 54, which can support the lever force of the brake extrusion screw 50 and realize direction locking to prevent shaking during cable release.

[0037] In the movable winding machine described in the present invention, the controller can adopt an existing single-chip microcomputer controller, such as an ARM single-chip microcomputer module, for realizing signal reception and transmission control; the display screen adopts a corresponding LED display screen; the rotation drive motor 27, the transverse drive motor 25, the longitudinal drive motor 26 and the lifting drive motor 68 all adopt existing stepper motors, and the rotation drive circuit, the transverse drive circuit, the longitudinal drive circuit and the lifting drive circuit all adopt existing stepper motor drive circuits; the longitudinal drive reducer 29 is a one-input three-output reducer, the rotation drive reducer 30 is a one-input dual-output reducer, the transverse drive reducer 28 is a one-input one-output reducer, and the commutator 33 is an input dual-output gear box.

[0038] When the movable winding machine described in the present invention is in use, the winding machine is first dragged to the use position by the traction rod 48, and the two tail walking wheels 83 are clamped and fixed by rotating the brake crank 85, and then the traction rod 48 is swung upward and embedded in the rectangular notch 65 and the direction locking notch 54 at the same time, so as to achieve direction locking, and then the brake extrusion screw 50 is rotated by the handle rod 51, so that the hemispherical end 63 presses the extrusion protrusion 62, and the brake friction pad 61 is pressed against the direction roller 57 to achieve braking; then the spacing of the four support rollers 42 is adjusted according to the size of the cable drum 88. When adjusting the spacing, the lateral increase button 71 and the lateral decrease button 72 are used to respectively control the adjustment of the lateral The longitudinal increase button 73 and the longitudinal decrease button 74 are used to control and adjust the longitudinal spacing respectively, and the speed increase button 97 and the speed decrease button 98 are used to adjust the cable release speed. After pressing the corresponding button, the controller controls the corresponding drive circuit to drive the motor in the forward and reverse directions to achieve spacing adjustment; when the side disc of the cable drum 88 is damaged, the cable drum 88 needs to be lifted up to release the cable, and the lifting height of the lifting support sleeve 3 can be adjusted by using the rising button 75 and the falling button 76, so as to meet the support requirements of cable drums 88 of various diameters. After pressing the corresponding button, the controller controls the corresponding drive circuit to drive the motor in the forward and reverse directions to achieve lifting height adjustment.

[0039] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and details may be made without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A movable winding machine, characterized in that: It comprises a supporting platform plate (1), a control box (23), a battery pack (69), four supporting rollers (42), a rotation drive mechanism, an electric roller distance adjustment mechanism, two tail roller mechanisms, and a direction roller mechanism; The roller pitch electric adjustment mechanism is fixedly mounted on the upper side of the support platform plate (1); four support rollers (42) are rotatably mounted on the roller pitch electric adjustment mechanism, and the four support rollers (42) are distributed in a rectangular array, and the roller pitch electric adjustment mechanism adjusts the spacing between the four support rollers (42); a rotary drive mechanism is mounted on the roller pitch electric adjustment mechanism, and is used to rotationally drive two of the support rollers (42) located on the same axis; a control box (23) is fixedly mounted on the upper side edge of the support platform plate (1), and is used to control the rotary drive mechanism and the roller pitch electric adjustment mechanism. The driving control is performed; the battery pack (69) is fixedly mounted on the lower side of the support platform plate (1) and is used to supply power to the control box (23); two tail roller mechanisms are fixedly mounted on the lower side of the left end of the support platform plate (1) and are used to stably support the left end of the support platform plate (1); the direction roller mechanism is mounted on the lower side of the right end of the support platform plate (1) and is used to adjust the moving direction of the right end of the support platform plate (1); a traction rod (48) is mounted on the direction roller mechanism, and a traction locking pin hole (49) is provided at the traction end of the traction rod (48); The roller pitch electric adjustment mechanism comprises four roller mounting plates (37), two strip bottom plates (35), four pairs of longitudinal slide rails (36), four pairs of transverse slide rails (24), a rotary drive motor (27), a rotary drive reducer (30), a transverse drive motor (25), a transverse drive reducer (28), a longitudinal drive motor (26), a longitudinal drive reducer (29) and a transverse adjustment screw (31); the four pairs of transverse slide rails (24) are all transversely fixedly mounted on the upper side of the support platform plate (1), and the four pairs of transverse slide rails (24) are distributed in a rectangular array; the two strip bottom plates (35) are both longitudinally arranged above the support platform plate (1), and are respectively slidably mounted on the two pairs of transverse slide rails on the left side through guide rail sliders (66) arranged on the lower side. The invention relates to a plurality of rotating rollers (42) comprising a plurality of rotating rollers (44) and a plurality of rotating rollers (45) arranged on the plurality of rotating rollers (46). The plurality of rotating rollers (42) are provided with a plurality of rotating rollers (46) and a plurality of rotating rollers (46) arranged on the plurality of rotating rollers (46) and a plurality of rotating rollers (46) arranged on the plurality of rotating rollers (46); the plurality of rotating rollers (46) are provided with a ... A rotating output sleeve (39), and the two rotating output sleeves (39) are located on the same longitudinal axis; a rotating synchronous rod (40) is longitudinally installed on the opposite shaft head ends of the two left support rollers (42), and the two rotating synchronous rods (40) are respectively inserted into the two rotating output sleeves (39); a rotating synchronous slide groove (41) is longitudinally arranged on the rotating synchronous rod (40), and a rotating synchronous convex block (77) slidably embedded in the rotating synchronous slide groove (41) is arranged on the inner wall of the rotating output sleeve (39); a commutator (33) is fixedly installed in the middle of the right side of the left strip bottom plate (35), and a longitudinal adjusting screw (34) is longitudinally installed on the two output shaft ends of the commutator (33); The longitudinal drive reducer (29) is fixedly mounted on the middle of the right side of the right strip bottom plate (35), and the output shaft of the longitudinal drive motor (26) is connected to the input shaft of the longitudinal drive reducer (29); the longitudinal drive reducer (29) is provided with two longitudinal output shafts and a transverse output shaft, and a longitudinal adjustment screw (34) is butt-mounted on each of the two longitudinal output shafts, and a transverse transmission rod (46) is butt-mounted on the transverse output shaft; the two longitudinal adjustment screws (34) on the front side and the two longitudinal adjustment screws (34) on the rear side have opposite thread rotation directions; a transverse transmission sleeve (45) is butt-mounted on the input shaft of the commutator (33); and the end of the transverse transmission rod (46) is inserted into the transverse transmission sleeve (45);A transverse guide slot (47) is transversely arranged on the rod wall of the transverse transmission rod (46), and a transverse guide slider (44) is slidably embedded in the transverse guide slot (47) on the inner wall of the transverse transmission sleeve (45); A longitudinal drive support (43) is fixedly arranged on the right side of each of the four roller mounting plates (37), and a longitudinal drive threaded hole is arranged on the longitudinal drive support (43); four longitudinal adjustment screws (34) are respectively threadedly mounted on the longitudinal drive threaded holes of the four longitudinal drive supports (43); the middle part of the transverse adjustment screw (31) is transversely rotatably mounted on the support platform plate (1) through the central support (32), and the threads of the left and right ends of the transverse adjustment screw (31) are rotated in opposite directions; at the bottom of the two strip bottom plates (35), A transverse drive support is provided on each side, and a transverse drive threaded hole is provided on the transverse drive support; the left and right ends of the transverse adjustment screw (31) are respectively threadedly screwed and installed on the transverse drive threaded holes of the two transverse drive supports; the transverse drive motor (25) and the transverse drive reducer (28) are both installed on the support platform plate (1), the output shaft of the transverse drive motor (25) is connected to the input shaft of the transverse drive reducer (28), and the output shaft of the transverse drive reducer (28) is connected to the end of the transverse adjustment screw (31); A controller, a power module, a lateral drive circuit, a longitudinal drive circuit and a rotation drive circuit are arranged in the control box (23); a lateral increase button (71), a lateral decrease button (72), a longitudinal increase button (73), a longitudinal decrease button (74), a speed increase button (97) and a speed decrease button (98) are arranged on the front side of the control box (23); the controller is electrically connected to the lateral drive circuit, the longitudinal drive circuit, the rotation drive circuit, the lateral increase button (71), the lateral decrease button (72), the longitudinal increase button (73), the longitudinal decrease button (74), the speed increase button (97) and the speed decrease button (98) respectively; the lateral drive circuit is electrically connected to the lateral drive motor (25) The controller drives the lateral drive motor (25) to rotate through the lateral drive circuit; the longitudinal drive circuit is electrically connected to the longitudinal drive motor (26), and the controller drives the longitudinal drive motor (26) to rotate through the longitudinal drive circuit; the rotation drive circuit is electrically connected to the rotation drive motor (27), and the controller drives the rotation drive motor (27) to rotate through the rotation drive circuit; the battery pack (69) supplies power to the controller, the lateral drive circuit, the longitudinal drive circuit, the rotation drive circuit, the lateral increase button (71), the lateral decrease button (72), the longitudinal increase button (73), the longitudinal decrease button (74), the speed increase button (97), and the speed decrease button (98) through the power module; The direction roller mechanism comprises a direction roller (57), a roller support plate (53) and two roller mounting side plates (56); a rotating support column (55) is arranged on the upper side surface of the roller support plate (53), and the upper end of the rotating support column (55) is rotatably mounted on the middle part of the lower side surface of the right end of the support platform plate (1); the two roller mounting side plates (56) are vertically mounted on the lower side surface of the roller support plate (53); the direction roller (57) is rotatably mounted between the two roller mounting side plates (56); a rectangular notch (65) is arranged on the side edge of the roller support plate (53), and a towing articulated seat (52) is arranged on the lower side surface of the roller support plate (53) and near the rectangular notch (65); the towing rod (48) is swingably articulated and mounted on the towing articulated seat (52).

2. The movable winding machine according to claim 1, characterized in that: A display screen (79) electrically connected to the controller is provided on the front side of the control box (23); the battery pack (69) supplies power to the display screen (79) via a power module.

3. The movable winding machine according to claim 1, characterized in that: A lifting drive mechanism is provided at the middle of the front and rear sides of the support platform plate (1); the lifting drive mechanism comprises a lifting drive screw (95), a lifting drive slider (94), a lifting guide square tube (2) and a lifting support sleeve (3); the lifting guide square tubes (2) of the two lifting drive mechanisms are respectively vertically fixedly installed at the middle of the front and rear sides of the support platform plate (1), and the lifting support sleeve (3) is slidably sleeved on the lifting guide square tube (2); the lifting drive screw (95) is vertically rotatably installed in the lifting guide square tube (2); the lifting drive slider (94) is slidably installed on the lifting guide square tube (2) The lifting guide square tube (2) is provided with a lifting drive threaded hole on the lifting drive slider (94); the lifting drive screw rod (95) is screwed and installed on the lifting drive threaded hole; two lifting guide strip holes (90) are vertically provided on the tube wall of the lifting guide square tube (2); the lifting drive slider (94) is provided with two connecting blocks (96) extending out of the two lifting guide strip holes (90) respectively; the connecting block (96) is fixedly installed on the inner wall of the lifting support sleeve (3); the lower ends of the lifting drive screw rods (95) of the two lifting drive mechanisms penetrate the support platform plate (1), and are connected to the lifting guide screw rods (95) at the penetration ends. A driven bevel gear (92) is fixedly mounted on the lower side of the support platform plate (1); a synchronous drive shaft (93) is rotatably mounted on the lower side of the support platform plate (1) through a lower side support seat (67); two active bevel gears (91) are fixedly mounted on the synchronous drive shaft (93) and are respectively meshed with two driven bevel gears (92); a lifting drive motor (68) is fixedly mounted on the lower side of the support platform plate (1), and the output shaft of the lifting drive motor (68) is connected to the end of the synchronous drive shaft (93); a side support seat (4) is arranged on the side of the lifting support sleeve (3), and a side support seat (68) is arranged on the side of the lifting support sleeve (3) 4) is provided with a U-shaped notch (5) on the upper side edge thereof for supporting the central axis (89) of the cable drum (88); an ascending button (75) and a descending button (76) electrically connected to the controller are provided on the front side of the control box (23); a lifting drive circuit electrically connected to the controller is provided in the control box (23); the lifting drive circuit is electrically connected to the lifting drive motor (68), and the controller drives the lifting drive motor (68) to rotate through the lifting drive circuit; and the battery pack (69) supplies power to the ascending button (75), the descending button (76) and the lifting drive circuit through the power module.

4. The movable winding machine according to claim 3, characterized in that: A roller mounting groove (7) is provided on the inner wall of the U-shaped groove (5), and three supporting rollers (6) for supporting the central axis (89) of the cable drum (88) are installed at the roller mounting groove (7); a limit baffle (13) is vertically provided at the left and right groove edges of the U-shaped groove (5); and a damping adjustment mechanism is provided on the upper side edge of the limit baffle (13) for limiting the inertial rotation of the central axis (89) of the cable drum (88).

5. The movable winding machine according to claim 4, characterized in that: The damping adjustment mechanism comprises a first strip-shaped pressing plate (9), a force adjustment bolt (15), a stabilizing pressing plate (16), a support compression spring (21), a pressing seat (20) and a friction pad (10); one end of the first strip-shaped pressing plate (9) is swingably hingedly mounted on the upper side of the left limit baffle (13) through a plate end hinge seat (8); the force adjustment bolt (15) is threadedly screwedly mounted in the middle of the first strip-shaped pressing plate (9), and the end of the screw of the force adjustment bolt (15) is rotatably mounted on a side plate surface of the stabilizing pressing plate (16); a pressing guide column (19) is arranged on the other side plate surface of the stabilizing pressing plate (16), and a guide limit groove (22) is arranged on the rod wall of the pressing guide column (19); a pressing guide tube (18) is arranged on the top surface of the pressing seat (20), and the pressing guide tube (18) is sleeved on the end of the pressing guide column (19), and the pressing guide tube (18) is screwed on the end of the pressing guide column (19). A guide limit block (78) is provided on the tube wall of the pressure plate (18) and is slidably embedded in the guide limit groove (22); a support compression spring (21) is elastically supported between the stable pressing plate (16) and the pressing seat (20); an arc groove is provided on the bottom surface of the pressing seat (20), and the friction pad (10) is installed on the arc groove; two locking columns (12) are rotatably installed on the upper side edge of the right limit baffle (13), and a pressing locking rod (11) is vertically arranged at the upper end of the locking column (12); a rotation locking hole is provided on the stable pressing plate (16), and a rotation locking rod (17) is slidably inserted into the rotation locking hole is provided on the first strip pressing plate (9); after the end of the first strip pressing plate (9) is turned over and pressed onto the upper side edge of the right limit baffle (13), the rotation locking column (12) causes the pressing locking rod (11) to press on the end of the first strip pressing plate (9).

6. The movable winding machine according to claim 1, characterized in that: The tail roller mechanism comprises a tail running wheel (83), two side support plates (80), a clamping locking screw (86) and two strip brake plates (81); the two side support plates (80) are both vertically mounted on the lower side of the support platform plate (1); the tail running wheel (83) is rotatably mounted between the two side support plates (80) via a wheel axle (14); two swing hinge shafts are arranged between the two side support plates (80) and above the tail running wheel (83); the upper ends of the two strip brake plates (81) are swingably hingedly mounted on the two swing hinge shafts respectively; the two strip brake plates A brake pad (82) for pressing on the wheel surface of the rear running wheel (83) is provided on the side of the lower end of each of the two strip-shaped brake plates (81); a pull-in groove (84) is provided on the upper end of each of the two strip-shaped brake plates (81), and a pull-in rotating shaft (87) is rotatably installed in each of the two pull-in grooves; a pull-in threaded hole is provided in the middle of one pull-in rotating shaft (87), and the middle of a clamping locking screw (86) is rotatably installed on another pull-in rotating shaft (87); one end of the clamping locking screw (86) is threadedly installed on the pull-in threaded hole, and the other end is fixedly installed with a brake crank (85).

7. The movable winding machine according to claim 1, characterized in that: A brake plate pin shaft (58) is rotatably mounted between the two roller mounting side plates (56), and a second strip-shaped pressing plate (60) is fixedly mounted on the brake plate pin shaft (58); a brake friction pad (61) is arranged on the side of the second strip-shaped pressing plate (60) opposite to the roller (57), an extrusion protrusion (62) is arranged on the other side of the second strip-shaped pressing plate (60), and an extrusion slope (64) is arranged on the extrusion protrusion (62); a direction locking notch (54) is arranged in the middle of the right side of the support platform plate (1); a rebound torsion spring (59) is sleeved on the shaft head of the brake plate pin shaft (58), and one end of the rebound torsion spring (59) is fixed on the torsion arm The roller is mounted on a side plate (56), and the other end of the torsion arm is fixed on a brake plate pin (58) for twisting the second strip-shaped pressing plate (60) away from the direction roller (57); a brake extrusion screw (50) is threadedly mounted on the traction rod (48), a handle rod (51) is vertically arranged at one end of the brake extrusion screw (50), and a hemispherical end (63) for pressing on an extrusion slope (64) is arranged at the other end; the towing hinge seat (52) is located between the traction locking pin hole (49) and the brake extrusion screw (50), and when the hemispherical end (63) is pressed on the extrusion slope (64), the traction rod (48) swings and is embedded in the direction locking notch (54).

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