CN221188503U - Winding rope fastening device for lifting door - Google Patents

Abstract

The utility model discloses a rope-winding fastening device for a lifting door, comprising a fixing seat, a mounting column and a rotation-stopping component, wherein at least one through-hole is provided on the mounting column, the mounting column comprises a column body, an insert and at least one fastening bolt, an inner recess is provided on the column body, the insert is accommodated in the inner recess, the insert is detachably connected to the column body, the through-hole is located between the column body and the insert, the fastening bolt is screwed on the insert and the end of the fastening bolt can be located in the through-hole, and the rotation-stopping component is arranged on the fixing seat. The rope-winding fastening device of the utility model is installed on the lifting cabinet of the platform, and the end of the protective rope between two adjacent sets of lifting cabinets is fixed on the mounting column. The rope-winding fastening device has a simple structure and can effectively reduce costs. The tension of the protective rope can be adjusted by rotating the mounting column, and the fixing and disassembly of the end of the protective rope are also very simple. The tension of the protective rope can be quantitatively adjusted by the rotation angle of the mounting column, and the operation is very convenient.

Description

Rope tightening device for lifting doors

Technical Field

The utility model relates to a rope-winding fastening device for a lifting door.

Background technique

Now, some high-speed railway platforms are equipped with lifting safety doors, and multiple protective ropes are set horizontally and parallel between two adjacent sets of lifting cabinets. Before the train enters the station, the lifting module in the lifting cabinet is lowered to the lowest position. At this time, the protective ropes between the two sets of lifting cabinets can play a role in safety protection. When and after the train enters the station, the protective ropes between the two sets of lifting cabinets can separate the platform from the train, playing a role in protecting the safety of passengers.

The length of the protective rope between two adjacent sets of lift cabinets is the door opening width of the high-speed rail platform lifting safety door. The designed door opening width is about 25m, which can adapt to the current docking of various high-speed rail trains. However, when there is strong wind on the platform, especially when encountering typhoon days, the protective rope will swing greatly due to the influence of wind force, and it is easy to exceed the safety white line at the edge of the high-speed rail platform, thereby losing its safety isolation function and bringing unsafe factors to the high-speed rail platform and passengers.

In order to effectively prevent the swing amplitude of the protective rope, some lifting cabinets will be equipped with a tensioning device, such as the tensioning structure in CN217145965U, wherein the tensioner is used to tension the rope unit passing through the guide shaft, and the bottom of the tensioner is fixed to the L-shaped fixing plate through a fixing piece. After the tensioner passes each round rope around the guide shaft, the entire round rope is tensioned by the tensioners at both ends through the rebound force of the spring, and a certain expansion tension is still maintained between the round ropes in real time, thereby achieving a certain rigidity of the rope as a whole, that is, the windproof effect and the overall straight line effect are better. However, the structure of this tensioning structure is relatively complicated, and the tension of the protective rope cannot be quantitatively adjusted, which is not very convenient in actual use. In addition, the structure for fixing the end of the protective rope is also relatively complicated, which not only increases the production cost, but also makes the fixing and disassembly of the end of the protective rope more troublesome.

Therefore, it is necessary to develop a tensioning structure which has a simple structure, is convenient for fixing the protective rope, and can quantitatively adjust the tension of the protective rope.

Utility Model Content

The purpose of the utility model is to provide a rope fastening device for a lifting door to solve at least one of the above technical problems.

According to one aspect of the utility model, a rope fastening device for a lifting door is provided, comprising:

Fixed seat;

A mounting column, wherein at least one through hole is provided on the mounting column, the mounting column comprises a column body, an insert and at least one fastening bolt, the column body is provided on the fixing seat and is rotatably connected to the fixing seat, the column body is provided with an inner recess, the insert is accommodated in the inner recess, the insert is detachably connected to the column body, the through hole is located between the column body and the insert, the fastening bolt is screwed on the insert and the end of the fastening bolt can be located in the through hole; and

The anti-rotation component is arranged on the fixing seat, and is used to limit the rotation of the mounting column so that the mounting column can only rotate in one direction.

The rope winding and fastening device of the utility model is installed on the lifting cabinet of the platform. When the protective rope needs to be fixed on the mounting column, the embedded piece on the mounting column is removed from the column body, the end of the protective rope is placed on the part of the column body located in the perforation, and then the embedded piece is reinstalled on the column body, and the fastening bolt is tightened. The end of the fastening bolt is pressed against the protective rope in the perforation, so that the end of the protective rope is firmly fixed on the mounting column. The ends of the protective rope between the two adjacent groups of lifting cabinets are respectively fixed on the mounting columns. When the protective rope between the two adjacent groups of lifting cabinets swings, that is, it is in a loose state, the mounting columns at both ends of the protective rope are rotated to roll more of the protective rope on the mounting columns, so that Tighten the protective rope between two adjacent groups of lifting cabinets to ensure that the protective rope maintains a certain rigidity as a whole, so that the protective rope between the two adjacent groups of lifting cabinets can obtain better wind protection effect and overall straight line effect. Under the action of the anti-rotation component, the protective rope wound on the mounting column will not unwind, thereby ensuring that the protective rope between the two adjacent groups of lifting cabinets is in a taut state. The rope winding and fastening device of the utility model has a simple structure and can effectively reduce costs. The tension of the protective rope can be adjusted by rotating the mounting column, and the fixing and disassembly of the end of the protective rope are also very simple. Moreover, the tension of the protective rope can be quantitatively adjusted by the size of the rotation angle of the mounting column, which is very convenient to operate.

In some embodiments, the anti-rotation component may include an anti-rotation piece, a torsion spring and a fixed column, one end of the fixed column is arranged on the fixed seat, the anti-rotation piece and the torsion spring are both sleeved on the fixed column, one torsion arm of the torsion spring is fixed on the fixed seat, the other torsion arm of the torsion spring is fixed on the anti-rotation piece, and the torsion spring is located between the anti-rotation piece and the fixed seat.

A ratchet is arranged at the end of the column, and a pawl matched with the ratchet is arranged at one end of the anti-rotation part.

Therefore, due to the cooperation between the pawl on the anti-rotation part and the ratchet on the column, when the mounting column is rotated forward, the pawl can slide along the teeth of the ratchet wheel without affecting the forward rotation of the ratchet wheel. When the rotation of the mounting column stops, under the action of the torsion spring, the pawl is clamped on the teeth of the ratchet wheel. Moreover, due to the existence of the torsion spring, the mounting column cannot rotate reversely, so that the mounting column can only rotate in one direction. When the mounting column is rotated forward, the protective rope can be wrapped around the mounting column more, thereby tightening the protective rope between the two adjacent groups of lifting cabinets. The mounting column cannot rotate reversely to ensure the tightness of the protective rope.

In some embodiments, a square boss may be provided at the end of the column, a recess matched with the square boss is provided on the end face of the ratchet, the square boss is inserted into the recess, and the ratchet is connected to the end of the column by a fixing bolt. Thus, the matching connection between the square boss and the recess can ensure that the ratchet and the column are consistent in the circumferential direction during rotation without slipping, and the connection with the fixing bolt can ensure that the ratchet and the column will not shift in the axial direction of the column, so that the ratchet and the column can maintain a stable integrity.

In some embodiments, the other end of the anti-rotation member may be provided with a toggle portion, so that when the protective rope wound on the mounting post needs to be unwound, that is, when the protective rope needs to be loosened, the toggle portion can be pulled to separate the pawl on the anti-rotation member from the teeth of the ratchet wheel, and then the mounting post can be rotated in the opposite direction to loosen the protective rope, which is very convenient to operate.

In some embodiments, the fixing column can be a bolt, and the fixing column is screwed on the fixing seat, and the end of the ratchet can be provided with a hexagonal boss. Therefore, the threaded connection between the fixing column and the fixing seat can make the anti-rotation member and the torsion spring very firmly sleeved on the fixing column, ensuring that the anti-rotation member and the torsion spring will not loosen. When the installation column needs to be rotated to tighten the protection rope, a wrench can be used to connect to the hexagonal boss, and then the installation column can be rotated to tighten the protection rope. The rotation operation of the installation column is very convenient.

In some embodiments, the mounting column may further include a connecting bolt, at least one first semicircular hole is provided on the wall of the inner recess, a second semicircular hole matching the first semicircular hole is provided on the insert, a through hole is formed in the surrounding wall of the first semicircular hole and the second semicircular hole, and the insert is connected to the column through the connecting bolt. Thus, when the protective rope needs to be fixed on the mounting column, the connecting bolt is removed, the insert is removed from the column, the end of the protective rope is placed in the first semicircular hole, and then the insert is reinstalled on the column through the connecting bolt, the second semicircular hole on the insert and the first semicircular hole on the column clamp the protective rope together, the fastening bolt is tightened, and the end of the fastening bolt is pressed against the protective rope in the through hole, so that the end of the protective rope is firmly fixed on the mounting column, and the fixing and removal of the end of the protective rope are very simple and fast.

In some embodiments, the number of the fastening bolts and the through-holes can be three, and the ends of the three fastening bolts can be located in the three through-holes respectively. Thus, one rope winding and fastening device can simultaneously fasten three protective ropes, and the ends of the three protective ropes can be firmly fixed on the mounting column, and when the mounting column is rotated, the three protective ropes can be tightened simultaneously.

In some embodiments, the insert may be provided with a recessed groove, and the nuts of the fastening bolts and the nuts of the connecting bolts are both recessed in the recessed groove. Thus, the nuts of the fastening bolts and the nuts of the connecting bolts do not protrude from the outer wall of the insert, that is, the outer wall of the mounting column, which can ensure that the protective rope can be smoothly rolled on the mounting column and unwound from the mounting column, and ensure that the protective rope will not get stuck on the nuts of the fastening bolts and the nuts of the connecting bolts, affecting the winding and unwinding of the protective rope.

In some embodiments, the fixing seat may include a top plate, a bottom plate, a first side plate, and a second side plate, wherein the top plate is connected to the bottom plate through the first side plate and the second side plate, and the first side plate and the second side plate are arranged vertically.

It may also include a first bearing and a second bearing, the column is rotatably connected to the top plate through the first bearing, and the column is rotatably connected to the bottom plate through the second bearing.

The anti-rotation component is arranged on the top plate.

Therefore, the top plate and the bottom plate are connected to the column through the first bearing and the second bearing respectively, which can ensure that the mounting column can rotate smoothly on the fixed seat to smoothly wind and unwind the protective rope. The part between the top plate and the bottom plate except the first side plate and the second side plate is open. In this way, the operator can fix the end of the protective rope on the mounting column or remove it from the mounting column through the open part between the top plate and the bottom plate.

In some embodiments, the second side plate may be provided with at least one through hole for inserting the winding rope of the lifting door, so that the end of the protective rope can be fixed on the mounting column after passing through the through hole on the second side plate.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a rope-winding fastening device for a lifting door according to an embodiment of the utility model;

FIG2 is a schematic diagram of the disassembled structure of the rope winding and fastening device shown in FIG1 ;

FIG3 is a schematic structural diagram of the rope winding and fastening device shown in FIG1 along direction A;

FIG. 4 is a schematic structural diagram of a ratchet wheel in the rope winding and fastening device shown in FIG. 2 .

Detailed ways

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

1 to 4 schematically show the structure of a winding rope fastening device for a lifting door according to an embodiment of the present invention.

1 to 4 , the rope-winding fastening device for a lifting door comprises a fixing seat 1, a mounting column 2 and a rotation-stopping component 3. In addition, the rope-winding fastening device may further comprise a first bearing 4, a second bearing 5 and a fixing bolt 6.

Referring to Figures 1 and 2, the fixing seat 1 includes a top plate 101, a bottom plate 102, a first side plate 103 and a second side plate 104, wherein the top plate 101 and the bottom plate 102 are arranged in parallel, one side of the top plate 101 is connected to one side of the bottom plate 102 through the first side plate 103, the other side of the top plate 101 is connected to the other side of the bottom plate 102 through the second side plate 104, the first side plate 103 and the second side plate 104 are arranged vertically, the top plate 101 and the first side plate 103 can be fixed by bolts, and the top plate 101 and the second side plate 104 can be fixed by bolts. The bottom plate 102 and the second side plate 104 can be fixed by bolts, and the first side plate 103 and the second side plate 104 can be fixed by bolts. The fixing seat 1 is designed so that the portion between the top plate 101 and the bottom plate 102 except for the first side plate 103 and the second side plate 104 is open. The operator can fix the protective rope on the mounting column 2 or remove it from the mounting column 2 through the open portion between the top plate 101 and the bottom plate 102.

1 and 2 , a through hole 1041 is formed on the second side plate 104 , and the through hole 1041 is used to insert the winding rope of the lifting door.

At least one through hole 201 is provided on the mounting column 2, and the through hole 201 is used to insert the end of the protective rope; referring to Figures 1 and 2, the mounting column 2 includes a column body 21, an insert 22, at least one fastening bolt 23 and a connecting bolt 24, an inner recess 211 is formed on the column body 21, and the shape and size of the insert 22 are adapted to the shape and size of the inner recess 211, and the insert 22 is accommodated in the inner recess 211, and the insert 22 and the column body 21 together form a mounting column 2 that is columnar as a whole; the insert 22 and the column body 21 are connected to each other. The body 21 is detachably connected, specifically: a threaded hole 213 is formed on the inner recess 211, and the connecting bolt 24 passes through the insert 22 and the end of the connecting bolt 24 is screwed into the threaded hole 213. The connecting bolt 24 connects and fixes the insert 22 and the column 21 together. The insert 22 can be removed from the column 21 by unscrewing the connecting bolt 24. In this embodiment, the number of the connecting bolts 24 and the threaded hole 213 are both two, and the insert 22 can be firmly installed on the column 21 through the two connecting bolts 24.

Referring to Figure 2, at least one first semicircular hole 212 is formed on the wall of the inner recess 211, and a second semicircular hole 221 is formed at a corresponding position on the insert 22. The second semicircular hole 221 is adapted to the first semicircular hole 212, and the first semicircular hole 212 and the second semicircular hole 221 are surrounded by a wall to form a through hole 201, that is, the through hole 201 is located between the column 21 and the insert 22; when the protective rope needs to be fixed to the mounting column 2, the connecting bolts 24 are removed, the insert 22 is removed from the column 21, the end of the protective rope is placed in the first semicircular hole 212, and then the insert 22 is reinstalled on the column 21 through the connecting bolts 24, and the second semicircular hole 221 on the insert 22 and the first semicircular hole 212 on the column 21 jointly clamp the protective rope, thereby enabling the protective rope to be inserted into the through hole 201.

Referring to Figures 1 and 2, the column 21 is installed on the fixed base 1, and the column 21 is rotatably connected to the fixed base 1. Specifically: the first bearing 4 is fixed on the top plate 101 in an embedded form, and the second bearing 5 is fixed on the bottom plate 102 in an embedded form. The upper part of the column 21 is inserted and fixed in the inner ring of the first bearing 4, and the bottom of the column 21 is inserted and fixed in the inner ring of the second bearing 5. The column 21 is rotatably connected to the top plate 101 through the first bearing 4, and the column 21 is rotatably connected to the bottom plate 102 through the second bearing 5. The top plate 101 and the bottom plate 102 are respectively connected to the column 21 through the first bearing 4 and the second bearing 5, which can ensure that the mounting column 2 can rotate smoothly on the fixed base 1 to smoothly wind and unwind the protective rope.

2 , in order to prevent the bottom of the mounting column 2 from being pulled out of the second bearing 5 , a circle of bosses 27 may be formed at the bottom of the column 21 , and the bosses 27 abut against the inner ring of the second bearing 5 .

The mounting column 2 is used to fix the protective rope of the lifting door. Specifically, referring to Figures 1 and 2, the fastening bolt 23 is screwed onto the insert 22 of the mounting column 2, and the end of the fastening bolt 23 can be screwed into the through hole 201. In this way, after the end of the protective rope is inserted into the through hole 201 on the mounting column 2, the fastening bolt 23 is tightened, and the end of the fastening bolt 23 is pressed against the protective rope in the through hole 201, so that the end of the protective rope can be firmly fixed on the mounting column 2.

Referring to Figures 1 and 2, in this embodiment, the number of the fastening bolts 23, the through holes 201, and the through holes 1041 on the second side plate 104 are all three, and the ends of the three fastening bolts 23 can be screwed into the three through holes 201 respectively. In this way, the ends of the three protection ropes are respectively passed through the three through holes 1041 on the second side plate 104, and then the ends of the three protection ropes are respectively inserted into the three through holes 201 on the mounting column 2, and the three fastening bolts 23 are respectively tightened. The ends of the three fastening bolts 23 are respectively pressed against the three protection ropes in the three through holes 201. At this time, the connection between the protection rope and the rope winding fastening device is completed. One rope winding fastening device can fix three protection ropes at the same time, and the ends of the three protection ropes can be firmly fixed on the mounting column 2. In this way, when the mounting column 2 is rotated, the three protection ropes can be tightened at the same time. In other embodiments, according to the needs and the size of the mounting column 2 and the second side plate 104, the number of the fastening bolts 23, the through holes 201, and the through holes 1041 on the second side plate 104 may also be one, two, or more than four (including four).

With reference to FIGS. 1 and 2 , a recessed groove 222 is formed on the outer wall of the insert 22 along the length direction of the mounting column 2. The nuts of the fastening bolts 23 and the nuts of the connecting bolts 24 are both sunk in the recessed groove 222. The nuts of the fastening bolts 23 and the nuts of the connecting bolts 24 do not protrude from the outer wall of the insert 22, that is, they do not protrude from the outer wall of the mounting column 2. In this way, it can be ensured that the protective rope can be smoothly wound around the mounting column 2 and smoothly unwound from the mounting column 2, and the protective rope can be prevented from being stuck on the nuts of the fastening bolts 23 and the nuts of the connecting bolts 24, affecting the winding and unwinding of the protective rope.

Referring to Figures 1 and 2, a ratchet 25 is installed on the top of the mounting column 2, that is, a ratchet 25 is installed on the top of the column 21. The specific connection relationship between the ratchet 25 and the column 21 is as follows: Referring to Figure 2, a square boss 26 is formed at the end of the column 21. Referring to Figure 4, a recess 251 is formed on the end surface of the ratchet 25. The shape and size of the recess 251 are adapted to the square boss 26. The square boss 26 on the top of the column 21 is inserted into the recess 251 on the ratchet 25, and two fixing bolts 6 are used to penetrate the ratchet 25. After passing through the ratchet 25, it is screwed onto the square boss 26 on the top of the column 21, thereby firmly fixing the ratchet 25 and the column 21 together. Through the matching connection between the square boss 26 and the recess 251, it can be ensured that the ratchet 25 and the column 21 are consistent in the circumferential direction during rotation without slipping. Through the connection of the fixing bolt 6, it can be ensured that the ratchet 25 and the column 21 will not shift in the axial direction of the column 21, thereby maintaining a stable integrity of the ratchet 25 and the column 21. In addition, referring to FIG. 4, a circle of convex edges 253 can also be formed on the end face of the ratchet 25, and the convex edges 253 are located on the periphery of the recess 251. When the square boss 26 on the top of the column 21 is inserted into the recess 251 on the ratchet 25, the convex edges 253 can just surround the outer wall of the column 21, thereby further ensuring that the ratchet 25 and the column 21 are firmly connected.

Referring to Figures 1 to 3, a hexagonal boss 252 is formed on the end face of the ratchet 25, and a receiving cavity is formed on the hexagonal boss 252. The nuts of the two fixing bolts 6 are sunk in the receiving cavity. When it is necessary to rotate the mounting column 2 to tighten the protective rope, a wrench can be used to connect to the hexagonal boss 252, and then the mounting column 2 can be rotated by turning the wrench to tighten the protective rope. The rotation operation of the mounting column 2 is very convenient.

Referring to Figures 1 to 3, the anti-rotation component 3 is installed on the fixed seat 1. Specifically, the anti-rotation component 3 is installed on the top plate 101 of the fixed seat 1. The anti-rotation component 3 can limit the rotation of the mounting column 2 so that the mounting column 2 can only rotate in one direction. The specific structure of the anti-rotation component 3 can be: the anti-rotation component 3 includes an anti-rotation member 31, a torsion spring 32 and a fixed column 33. The fixed column 33 is a bolt. The fixed column 33 is screwed on the top plate 101 of the fixed seat 1. The anti-rotation member 31 and the torsion spring 32 are both sleeved on the fixed column 33. The nut of the bolt presses on the anti-rotation member 31. The anti-rotation member 31 can rotate on the fixed column 33. One torsion arm 321 of the torsion spring 32 is inserted into the top plate 101 of the fixed seat 1. The other torsion arm 322 of the torsion spring 32 is inserted into the anti-rotation member 31. The torsion spring 32 is located between the anti-rotation member 31 and the top plate of the fixed seat 1 101 (as shown in FIG1 ), the threaded connection between the fixing column 33 and the top plate 101 of the fixing seat 1 can make the anti-rotation member 31 and the torsion spring 32 very firmly mounted on the fixing column 33, ensuring that the anti-rotation member 31 and the torsion spring 32 will not loosen; referring to FIG3 , the anti-rotation member 31 is approximately L-shaped as a whole, and a pawl 311 is formed on one free end of the anti-rotation member 31, and the pawl 311 cooperates with the ratchet 25 on the mounting column 2. When the anti-rotation member 31 does not rotate, the upper side of the anti-rotation member 31 is arranged obliquely (as shown in FIG3 ), that is, the upper side of the anti-rotation member 31 is inclined from left to right. The pawl 311 is clamped on the tooth portion of the ratchet 25. The torsion spring 32 in the state shown in Figure 3 is in a natural state. The stopper 31 can only rotate counterclockwise, and the stopper 31 cannot rotate clockwise. In this case, the ratchet 25 and the mounting column 2 can only rotate clockwise, and the ratchet 25 and the mounting column 2 cannot rotate counterclockwise, thereby realizing the unidirectional rotation of the mounting column 2. Due to the cooperation between the pawl 311 on the stopper 31 and the ratchet 25 on the mounting column 2, when the ratchet 25 and the mounting column 2 are rotated in the positive direction, that is, the clockwise rotation, the pawl 311 can slide along the tooth portion of the ratchet 25 , does not affect the clockwise rotation of the ratchet 25. When the clockwise rotation of the ratchet 25 and the mounting column 2 stops, under the action of the torsion spring 32, the pawl 311 is clamped on the tooth portion of the ratchet 25. Moreover, due to the existence of the torsion spring 32, the ratchet 25 and the mounting column 2 cannot rotate in the opposite direction, that is, they cannot rotate counterclockwise, so that the mounting column 2 can only rotate in one direction. When the mounting column 2 is rotated clockwise, the protective rope can be wrapped more around the mounting column 2, thereby tightening the protective rope between the two adjacent groups of lifting cabinets. The mounting column 2 cannot rotate counterclockwise to ensure the tightness of the protective rope.

2 and 3 , a toggle portion 312 is formed on the other free end of the stop member 31. When the protective rope wound on the mounting column 2 needs to be unwound, that is, when the protective rope needs to be loosened, the toggle portion 312 can be pulled (pushing the toggle portion 312 to the right in FIG. 3 ) to separate the pawl 311 on the stop member 31 from the teeth of the ratchet 25. At this time, the mounting column 2 can be rotated counterclockwise to loosen the protective rope, which is very convenient to operate.

Referring to Figures 1 and 2, the rope-winding fastening device of the present invention is installed on the lift cabinet of the platform. As needed, multiple rope-winding fastening devices of the present invention can be longitudinally installed on each lift cabinet. Three protective ropes are installed between two rope-winding fastening devices at the same height between two adjacent sets of lift cabinets. The installation steps of the protective rope are: remove the connecting bolt 24, remove the insert 22 from the column 21, pass the end of the protective rope through the through hole 1041 on the second side plate 104, place the end of the protective rope in the first semicircular hole 212 on the column 21, and then reinstall the insert 22 on the column 21 through the connecting bolt 24. On the column 21, the second semicircular hole 221 on the insert 22 and the first semicircular hole 212 on the column 21 clamp the protective rope together, so that the end of the protective rope is inserted into the through hole 201, and the fastening bolt 23 is tightened. The end of the fastening bolt 23 presses against the protective rope in the through hole 201, so that the end of the protective rope is installed on the mounting column 2. At this time, the fixing of the end of the protective rope is completed. The two ends of each protective rope are respectively fixed to the two mounting columns 2 of the two rope winding fastening devices on the two adjacent groups of lifting cabinets. The operator can operate through the open part between the top plate 101 and the bottom plate 102 of the fixing seat 1 The protective rope is fixed and disassembled at the end of the protective rope; when the protective rope between two adjacent groups of lift cabinets swings, that is, it is not tightened, use a wrench to connect the hexagonal boss 252 on the ratchet 25, and then turn the wrench in the positive direction (clockwise as shown in Figure 3) to wind the protective rope more around the mounting column 2, thereby tightening the protective rope between the two adjacent groups of lift cabinets, ensuring that the protective rope maintains a certain rigidity as a whole, so that the protective rope between the two adjacent groups of lift cabinets can obtain better windproof effect and overall straight effect. Under the action of the anti-rotation component 3, the protective rope wound on the mounting column 2 will not unwind, thereby ensuring that the two adjacent groups of lift cabinets are in a straight line. The protective rope between the lifting cabinets is in a taut state. When the protective rope needs to be loosened, the toggle portion 312 is pulled to separate the pawl 311 on the stop member 31 from the tooth portion of the ratchet 25. At this time, the mounting column 2 can be rotated in the opposite direction (counterclockwise as shown in FIG. 3) to loosen the protective rope. The rope winding and fastening device of the utility model has a simple structure and can effectively reduce costs. The tension of the protective rope can be adjusted by rotating the hexagonal boss 252 on the ratchet 25. The fixing and disassembly of the end of the protective rope are also very simple. Moreover, the tension of the protective rope can be quantitatively adjusted by the rotation angle of the hexagonal boss 252, which is very convenient to operate.

The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims (10)

1. A rope fastening device for a lifting door, characterized in that it comprises: Fixed seat; A mounting column, wherein at least one through hole is provided on the mounting column, the mounting column comprises a column body, an insert and at least one fastening bolt, the column body is provided on the fixing seat and is rotatably connected to the fixing seat, the column body is provided with an inner recess, the insert is accommodated in the inner recess, the insert is detachably connected to the column body, the through hole is located between the column body and the insert, the fastening bolt is screwed on the insert and the end of the fastening bolt can be located in the through hole; and The anti-rotation component is arranged on the fixing seat, and is used to limit the rotation of the mounting column so that the mounting column can only rotate in one direction. 2. The rope tightening device according to claim 1 is characterized in that the anti-rotation component includes an anti-rotation piece, a torsion spring and a fixed column, one end of the fixed column is arranged on a fixed seat, the anti-rotation piece and the torsion spring are both sleeved on the fixed column, one torsion arm of the torsion spring is fixed on the fixed seat, and the other torsion arm of the torsion spring is fixed on the anti-rotation piece, and the torsion spring is located between the anti-rotation piece and the fixed seat. A ratchet is provided at the end of the column, and a pawl matched with the ratchet is provided at one end of the anti-rotation member. 3. The rope winding and fastening device according to claim 2 is characterized in that a square boss is provided at the end of the column, a recess adapted to the square boss is provided on the end face of the ratchet, the square boss is inserted into the recess, and the ratchet is connected to the end of the column by a fixing bolt. 4. The rope-winding and fastening device according to claim 2, characterized in that a toggle portion is provided at the other end of the anti-rotation member. 5. The rope winding and fastening device according to claim 2 is characterized in that the fixing column is a bolt, the fixing column is screwed on the fixing seat, and a hexagonal boss is provided at the end of the ratchet. 6. The rope tightening device according to claim 1 is characterized in that the mounting column also includes a connecting bolt, at least one first semicircular hole is provided on the wall of the inner recess, and a second semicircular hole is provided on the embedded component to match the first semicircular hole, the first semicircular hole and the second semicircular hole are surrounded by a through hole, and the embedded component is connected to the column body by a connecting bolt. 7. The rope winding and fastening device according to claim 1 is characterized in that the number of the fastening bolts and the through holes are both three, and the ends of the three fastening bolts can be located in the three through holes respectively. 8. The rope winding and fastening device according to claim 6 is characterized in that a recessed groove is provided on the embedded part, and the nut of the fastening bolt and the nut of the connecting bolt are both sunk in the recessed groove. 9. The rope-winding fastening device according to any one of claims 1 to 8, characterized in that the fixing seat comprises a top plate, a bottom plate, a first side plate and a second side plate, the top plate is connected to the bottom plate through the first side plate and the second side plate, and the first side plate and the second side plate are arranged vertically. It also includes a first bearing and a second bearing, wherein the column is rotatably connected to the top plate via the first bearing, and the column is rotatably connected to the bottom plate via the second bearing. The anti-rotation component is arranged on the top plate. 10. The rope fastening device according to claim 9, characterized in that the second side plate is provided with at least one through hole for inserting the rope of the lifting door.