CN218538184U

CN218538184U - Crossing system

Info

Publication number: CN218538184U
Application number: CN202221848589.7U
Authority: CN
Inventors: 卜祥浜
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2023-02-28
Anticipated expiration: 2032-07-18

Abstract

The utility model discloses a cross system is equipped with main rope and auxiliary member, be equipped with and grab the draw gear, grab the portion of grabbing of drawing the device and grabbing the main rope, the cable section in the place ahead of being grabbed is the transportation section, grab and be equipped with two at least pulleys on the draw gear, be equipped with the pulley on the auxiliary member, the pulley that establishes on the auxiliary member is as the fixed pulley, grab and draw the pulley that establishes on the device and regard as the movable pulley, constitute the assembly pulley jointly and supply to act as go-between and wear to draw around the back, thereby it is taut to transport the section by grabbing the portion of grabbing that the draw gear grabbed the main rope backward to pull the line. The fire fighter can adorn in advance and grab the pulley on drawing device and the auxiliary member, just need not to install the pulley one by one when needing taut main rope, only need to fix the auxiliary member installation to grab the portion of grabbing of main rope with grabbing the drawing device, can accomplish the installation, it is convenient to see this crossing system simple to operate, grab a plurality of movable pulleys of drawing device and the fixed pulley of auxiliary member and constitute the assembly pulley jointly, the fire fighter walks around the assembly pulley with acting as go-between and draws forth backward, then taut acting as go-between can be taut the main rope.

Description

Crossing system

Technical Field

The utility model relates to a cross-ferry equipment technical field, concretely relates to cross-ferry system

Background

When the rescue is carried out in the field, if the rescued wounded person cannot walk, the firefighter can move the wounded person to a safe zone by using a stretcher, in the process, if the wounded person is in a zone which is difficult to move and pass by hiking, such as a river, a crossing system needs to be temporarily built on two banks of the river, the crossing system is utilized to help the wounded person to cross the river, and the two banks of the river are respectively used as a starting point and a target point. A firefighter builds a crossing system and firstly searches two trees with fixed positions on two banks of a river respectively, then a main rope is erected on the two banks of the river, the front end and the rear end of the main rope are connected with the two trees respectively, the two trees are used as a front rope fixing object and a rear rope fixing object for fixing the main rope respectively, the firefighter tensions the main rope, then a pulley is hung on the main rope at a starting point, the pulley is connected with a force distribution plate through a safety hook, then the force distribution plate is connected with a stretcher through a rope, a pull rope is tied on the force distribution plate, the pulley, the force distribution plate and the stretcher form a carrier for bearing a wounded, the firefighter pulls the pull rope to drive the pulley to drive the force distribution plate and the stretcher to move to the target point along the main rope from the starting point, the wounded can be transported to the target point, and a rope section for hanging and transporting by the pulley of the main rope is a transportation section. The main rope is usually dozens of meters long and is difficult to tension by hands, so that a fireman must tension the main rope by using a labor-saving mechanism when erecting the main rope, the conventional labor-saving mechanism generally comprises a plurality of double pulleys, a plurality of safety hooks, a force distribution plate and the like, and the fireman must mount the double pulleys, the safety hooks and the force distribution plate of the labor-saving mechanism one by using ropes when using the main rope.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a cross system compares current cross system for two pulleys, safety hook and component board these parts of the laborsaving mechanism of the required installation of taut main rope, and this cross system is the part of taut main rope and installation is small in quantity, simple to operate.

For solving the technical problem, the utility model discloses a cross-over system, be equipped with the main rope and can install fixed auxiliary member, the main rope both ends can set firmly respectively in the preceding guy cable thing of rigidity and rigidity's back guy cable thing, still be equipped with and grab draw gear, grab the portion of grabbing of draw gear grabbing main rope, the cable section in the portion the place ahead of grabbing is the transportation section, supply to carry the thing piece to hang the transportation, grab and be equipped with two at least pulleys on the draw gear, be equipped with the pulley on the auxiliary member, the pulley of establishing on the auxiliary member is as the fixed pulley, it is as the movable pulley to grab the pulley of establishing on the draw gear, constitute the assembly pulley jointly and supply to act as go-between and draw forth after wearing, thereby it is taut to transport section to pull backward then grab the portion of grabbing that draw gear grabs the main rope and move backward.

Furthermore, the grabbing and pulling device is provided with a first rope grabbing device, and the grabbed part of the main rope is grabbed by the first rope grabbing device; the first rope grab is specifically a one-way rope grab.

Furthermore, in the pulley block, the number of the fixed pulleys is the same as that of the movable pulleys or is one less than that of the movable pulleys.

Further, the auxiliary member doubles as a rear tether.

Further, the auxiliary member is provided with a second rope grab through which the rear end of the main rope is grabbed; the second rope grab is specifically a one-way rope grab.

Furthermore, the auxiliary part is provided with a stay wire end fixing structure for fixing the end part of the stay wire; and/or the auxiliary part is provided with a mounting and fixing structure, and the auxiliary part is mounted and fixed through the mounting and fixing structure.

Furthermore, the stay wire end fixing structure is specifically a stay wire hole, and the mounting part connecting structure is specifically a mounting hole; the top of the auxiliary part is provided with a connecting block, and the pull wire hole and the mounting hole are both arranged on the connecting block.

Furthermore, the auxiliary part is provided with a mounting and fixing structure, and the mounting rope binds the auxiliary part to an object with a fixed position through the mounting and fixing structure of the auxiliary part so as to mount and fix the auxiliary part.

Furthermore, the pull wire is included, the pull wire is wound on the pulley block in a penetrating way, and the tail end of the pull wire is led out from the last movable pulley backwards; the auxiliary part is provided with a stay wire end fixing structure, and the head end of the stay wire is fixed at the fixing structure; the auxiliary member doubles as a rear cable fixing object, and particularly, is provided with a one-way rope grab through which the rear end of the main cable is grabbed.

Furthermore, the rear end of the main cable is fixedly arranged on the rear cable fixing object and extends backwards to form an extending part, and the extending part is used as the pull wire and is wound on the pulley block in a penetrating way; in the pulley block, the number of the fixed pulleys is the same as that of the movable pulleys, and the extending part is wound on the pulley block, specifically, from the first fixed pulley, and led out from the last movable pulley backwards.

The crossing system uses the grabbing and pulling device and the auxiliary part instead of the double pulleys, the safety hook and the component force plate of the existing force-saving mechanism to tighten the main rope, and the number of parts is small. The fire fighter can adorn in advance and grab the pulley on drawing device and the auxiliary member, just need not to install the pulley one by one when needing taut main rope, only need to fix the auxiliary member installation to grab the portion of grabbing of main rope with grabbing the drawing device, can accomplish the installation, it is convenient to see this crossing system simple to operate, grab a plurality of movable pulleys of drawing device and the fixed pulley of auxiliary member and constitute the assembly pulley jointly, the fire fighter walks around the assembly pulley with acting as go-between and draws forth backward, then taut acting as go-between can be taut the main rope.

Drawings

Fig. 1 is a schematic view of a cross-over system of the first embodiment.

Fig. 2 is a partially enlarged view of fig. 1, in which a portion E of fig. 1 is enlarged.

Fig. 3 is a schematic view of a cross-over system of the second embodiment.

Detailed Description

The invention is described in further detail below with reference to specific embodiments.

Referring to fig. 1, a crossing system is provided with a main rope 1, and after the direction indicated by an arrow C in fig. 1 is taken as a back, a fireman uses the crossing system to transport a wounded person from a departure point a of a river bank to a target point B of an opposite bank, firstly, the two

trees

91 and 92 with fixed positions in front of and behind are searched for on the two banks of the river, and the two

trees

91 and 92 are respectively taken as a front cable fixing object and a back cable fixing object to respectively fix the front end D1 and the back end D5 of the main rope 1. The crossing system is provided with an object carrying piece 6, a fireman hangs the object carrying piece 6 on the main rope 1 at a departure point A, the wounded is carried by the object carrying piece 6, then a pull rope (not shown in the figure) is connected on the object carrying piece 6, the pull rope is pulled backwards to enable the object carrying piece 6 to move backwards to a target point B along the main rope 1, the wounded can be helped to cross the river, and the rope section of the main rope 1 for hanging and transporting the object carrying piece 6 is a transportation section D2.

Referring to fig. 1, since the main rope 1 is several tens of meters long and the transporting section D2 thereof sags under the gravity, so that the object 6 cannot be stably suspended and transported, the firefighter must first pull the transporting section D2 of the main rope 1 to suspend the object 6 thereon, and for this, the crossing system is provided with the grab and pull device 2 and the auxiliary member 3 at the target point B to help the firefighter pull the transporting section D2.

Referring to fig. 1, a cable section of the main cable 1 behind the transportation section D2 is a gripped part D3, the gripping and pulling device 2 is located in front of the tree 92, the top of the gripping and pulling device 2 is provided with a first one-way cable gripper 21, and the gripped part D3 of the main cable 1 is gripped by the first one-way cable gripper 21. The first unidirectional rope grabbing device 21 is in the prior art, only allows the main rope 1 to pass through backwards in a unidirectional manner, and does not allow the main rope 1 to slide forwards, that is, the first unidirectional rope grabbing device 21 only can move forwards along the main rope 1 and cannot move backwards along the main rope 1, so that when the first unidirectional rope grabbing device 21 is pulled backwards, the grabbed part D by the main rope 1 is pulled backwards.

Referring to fig. 1, the auxiliary member 3 is located between the grabbing and pulling device 2 and the tree 92, and a second one-way rope grab 31 is provided on the top of the auxiliary member 3, and the rear end D5 of the main rope 1 is grabbed by the second one-way rope grab 31. The second unidirectional rope grab 31 is the prior art, only allows the main rope 1 to pass through backwards in a unidirectional way, and does not allow the main rope 1 to slide forwards, so that the rear end D5 of the main rope 1 cannot slide forwards from the second unidirectional rope grab 31. Referring to fig. 1 and 2, the first connecting block 321 is installed at the top of the auxiliary member 3, the second connecting block 322 is installed at the bottom of the auxiliary member, the first connecting block 321 and the second connecting block 322 are respectively provided with an upper mounting hole and a lower mounting hole 34, and the upper mounting hole and the lower mounting hole 34 are used as a mounting and fixing structure together. The crossing system is provided with two installation ropes 5, the two installation ropes 5 respectively pass through the upper installation hole 34 and the lower installation hole 34 and then tie the auxiliary piece 3 to the tree 92, so that the auxiliary piece 3 is fixedly installed between the grabbing and pulling device 2 and the tree 92 and cannot move forwards. Since the auxiliary member 3 is fixed in position and cannot move forward, the rear end D5 of the main rope 1 cannot drive the second unidirectional rope grab 31 of the auxiliary member 3 to move forward together, that is, the rear end D5 of the main rope 1 is fixed on the second unidirectional rope grab 31 of the auxiliary member 3, it can be seen that the rear end D5 of the main rope 1 is fixed on both the tree 92 and the second unidirectional rope grab 31 of the auxiliary member 3, and the tree 92 and the auxiliary member 3 are both used as rear rope fixing objects to fix the rear end D5 of the main rope 1.

Referring to fig. 1, the grabbing and pulling device 2 is provided with three pulleys, the auxiliary component 3 is provided with two pulleys, the three pulleys arranged on the grabbing and pulling device 2 are used as movable pulleys 29, and the two pulleys arranged on the auxiliary component 3 are used as fixed pulleys 39, which jointly form a pulley block. The cross system is provided with a stay wire 4, as shown in fig. 1 and fig. 2, a first connecting block 321 of the auxiliary element 3 is provided with a stay wire hole 33, the stay wire hole 33 is used as a stay wire end fixing structure, the head end 41 of the stay wire 4 is fixed at the stay wire hole 33, the tail end 42 of the stay wire 4 is threaded on the pulley block from the first movable pulley 29, and is led out backwards from the last movable pulley 29 for a fireman to pull backwards. The firefighter pulls the stay wire 4 backwards to drive the grabbing and pulling device 2 to move backwards, and the first one-way rope grabbing device 21 on the grabbing and pulling device 2 grabs the grabbed part D3 of the main rope 1 and pulls backwards to tighten the transportation section D2 of the main rope 1 until the grabbing and pulling device 2 leans against the auxiliary part 3. The cable section of the main cable 1 between the grabbed part D3 and the rear end D5 is a reserved section D4 of the main cable, and in the process of tensioning the main cable 1 by the grabbing and pulling device 2, the front end of the reserved section D4 is close to the rear end backwards, so that the reserved section D4 sags. In the state that the grabbing and pulling device 2 is close to the auxiliary element 3, if the main rope 1 is not completely tensioned, a fireman firstly pulls the rear end D5 of the main rope 1 backwards to enable the redundant part of the reserved section D4 of the main rope 1 to pass through the second one-way rope grabbing device 31 backwards until the reserved section D4 of the main rope 1 is tensioned, then releases the pull wire 4 and enables the first one-way rope grabbing device 21 of the grabbing and pulling device 2 to move forwards for a distance along the main rope 1, continuously pulls the pull wire 4 backwards to drive the grabbing and pulling device 2 to tension the transportation section D2 of the main rope 1 again, and then repeats the operation for a plurality of times until the main rope 1 is completely tensioned.

Referring to fig. 1, the bottom of the grasping and pulling device 2 is provided with an accessory mounting hole 22 for mounting an accessory such as a hook (not shown).

Second embodiment referring to fig. 3, two mounting ropes 5 of the crossing system bind the auxiliary 3 to the tree 92 and tie the auxiliary 3 tightly so that the auxiliary 3 is completely fixed and the auxiliary 3 can not move forward nor backward. The number of the fixed pulleys 39 and the movable pulleys 29 is three. The second unidirectional rope grab 31 is arranged in front of the first fixed pulley 39 and grabs the rear end D5 of the main rope 1, the rear end D5 of the main rope 1 is only fixedly arranged on the second unidirectional rope grab 31 of the auxiliary element 3 and is not fixedly arranged on the tree 92, the rear end D5 of the main rope 1 extends backwards to form an extension part 11, the extension part 11 is used as a pull wire, the pull wire is wound on the pulley block from the first fixed pulley 39, and the pull wire is led out backwards from the last movable pulley 29 to be pulled backwards by a fireman. The first connecting block 321 at the top of the auxiliary member 3 is provided with only the mounting hole 34 and is not provided with the pull-line hole 33. The rest of the crossing system is the same as the first embodiment, and the description thereof is omitted. The extension part 11 of the main rope 1 is pulled backwards by a fireman, the extension part 11 of the main rope 1 drives the first one-way rope grab 21 of the grabbing and pulling device 2 to grab the grabbed part D3 of the main rope 1 and pull backwards to tension the transportation section D2 of the main rope 1 until the grabbing and pulling device 2 leans against the auxiliary element 3, in this state, if the main rope 1 is not completely tensioned, the fireman loosens the extension part 11 of the main rope 1 and enables the first one-way rope grab 21 of the grabbing and pulling device 2 to move forwards for a certain distance along the main rope 1, then the extension part 11 of the main rope 1 is pulled backwards to drive the grabbing and pulling device 2 to tension the transportation section D2 of the main rope 1 again, and the operation is repeated for a plurality of times until the main rope 1 is completely tensioned.

The above description is only the embodiments of the present invention, and the scope of protection is not limited thereto. The invention is not limited to the above embodiments, but may be modified within the scope of the appended claims.

Claims

1. The crossing system is characterized in that: the cable is provided with a main cable, auxiliary parts capable of being installed and fixed, wherein two ends of the main cable can be respectively and fixedly arranged on a front cable fixing object with a fixed position and a rear cable fixing object with a fixed position, the main cable is also provided with a grabbing and pulling device, the grabbing and pulling device grabs a grabbed part of the main cable, a cable section in front of the grabbed part is a transportation section for hanging and transporting the object carrying part, the grabbing and pulling device is provided with at least two pulleys, the auxiliary parts are provided with pulleys, the pulleys arranged on the auxiliary parts are used as fixed pulleys, the pulleys arranged on the grabbing and pulling device are used as movable pulleys and jointly form a pulley block for leading out a pulling wire after penetrating and winding, and the pulling wire pulls backwards, so that the grabbing and pulling device grabs the grabbed part of the main cable to move backwards so as to tighten the transportation section.

2. The ferry system of claim 1, wherein: the grabbing and pulling device is provided with a first rope grabbing device, and a grabbed part of the main rope is grabbed by the first rope grabbing device; the first rope grab is specifically a one-way rope grab.

3. The ferry system of claim 1, wherein: in the pulley block, the number of the fixed pulleys is the same as that of the movable pulleys or is one less than that of the movable pulleys.

4. The ferry system of claim 1, wherein: the auxiliary member also serves as a rear cable fixing object.

5. The ferry system of claim 4, wherein: the auxiliary part is provided with a second rope grab, and the rear end of the main rope is grabbed by the second rope grab; the second rope grab is specifically a one-way rope grab.

6. The ferry system of claim 1, wherein: the auxiliary part is provided with a stay wire end fixing structure for fixing the end part of the stay wire; and/or the auxiliary part is provided with a mounting and fixing structure, and the auxiliary part is mounted and fixed through the mounting and fixing structure.

7. The ferry system of claim 6, wherein: the stay wire end fixing structure is specifically a stay wire hole, and the mounting part connecting structure is specifically a mounting hole; the top of the auxiliary part is provided with a connecting block, and the pull wire hole and the mounting hole are both arranged on the connecting block.

8. The ferry system of claim 1, wherein: the auxiliary part is provided with an installation fixing structure, and the installation rope ties the auxiliary part on an object with a fixed position through the installation fixing structure of the auxiliary part so as to install and fix the auxiliary part.

9. The ferry system of any of claims 1-8, wherein: the pull wire is threaded on the pulley block, and the tail end of the pull wire is led out from the last movable pulley backwards; the auxiliary part is provided with a stay wire end fixing structure, and the head end of the stay wire is fixed at the fixing structure; the auxiliary member doubles as a rear cable fixing object, and is provided with a one-way rope grabber by which the rear end of the main cable is grabbed.

10. The ferry system of claim 9, wherein: the rear end of the main cable is fixedly arranged on a rear cable fixing object and extends backwards to form an extending part, and the extending part is used as the pull wire and is wound on the pulley block in a penetrating way; in the pulley block, the number of the fixed pulleys is the same as that of the movable pulleys, and the extending part penetrates through the pulley block and is led out from the first fixed pulley and the last movable pulley backwards.