Flexible gallery type crossing pay-off system with automatic opening and closing tackle

Abstract

The invention discloses a flexible gallery type crossing pay-off system with an automatic opening and closing tackle, which comprises a traction walking board, a main frame body, a pay-off tackle and a wire pressing tackle, the pay-off tackle is mounted at the lower end of the main frame body, the wire pressing tackle is elastically, vertically and slidably mounted at the upper end of the main frame body, and a clamping area is formed between the wire pressing tackle and the pay-off tackle; when the traction walking plate is matched with the clamping area, the wire pressing tackle is suitable for being driven by the traction walking plate to slide and be far away from the paying-off tackle; when the traction walking board crosses the clamping area, the wire pressing tackle is suitable for moving downwards under the action of gravity and elastic force and getting close to the wire paying-off tackle, and then the drawn wire is located in the closed clamping area. The wire pressing tackle has the advantages that the phenomena of wire jumping and groove jumping of a traction rope and a wire before and after paying off can be prevented, the clamping area can be automatically opened and closed under the action of the traction walking plate, in other words, manual interference operation on the wire pressing tackle is not needed in the whole process, manpower is saved, and working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of power systems, and in particular to a flexible corridor-type crossing-wire-laying system with an automatic opening and closing pulley. Background Art

[0002] In the construction of power transmission lines, laying out the ground wire is a key process. The speed of this process directly affects the progress of the project. Because this process involves a lot of aerial work, whether the work procedure is simple and fast directly affects whether the work can be carried out safely and smoothly. In the past power transmission line construction, only one ground wire could be laid out at a time, and the work efficiency was very low. Therefore, a wire laying pulley that can lay out multiple conductors at the same time was developed.

[0003] In the prior art, such as the patent CN202217966U, it discloses a wire-paying pulley with a wire-pressing wheel, which is a wire-pressing pulley assembled on the pulley frame of the existing wire-paying pulley, and the wire-pressing pulley is arranged directly above the wire-paying pulley of the wire-paying pulley. Then, during the wire laying process, when the wire swings up and hits the wire-pressing pulley, the wire-pressing pulley rotates with the forward movement of the wire, and the wire will not slide on the wire-pressing pulley and cause damage. Although the above patent can protect the wire from jumping, since there is a distance between the wire-pressing pulley and the wire-paying pulley for the traction board to pass through, the wire will jump, and the sub-wires will be mixed together, and the reliability is poor. For this reason, a flexible corridor-type crossing wire-paying system with an automatic opening and closing pulley is proposed to solve the above technical problems. Summary of the invention

[0004] One of the purposes of the present application is to provide a flexible corridor-type spanning wire-laying system with an automatically opening and closing pulley.

[0005] To achieve the above objectives, the technical solution adopted in the present application is: a flexible corridor-type crossing wire-paying system with an automatically opening and closing pulley, comprising a traction walking board, a main frame, a wire-paying pulley and a wire-pressing pulley, the wire-paying pulley being installed at the lower end of the main frame, the wire-pressing pulley being elastically and vertically slidably installed at the upper end of the main frame, and a clamping area being formed between the wire-pressing pulley and the wire-paying pulley; when the traction walking board cooperates with the clamping area, the wire-pressing pulley is suitable for sliding and moving away from the wire-paying pulley under the drive of the traction walking board; when the traction walking board passes over the clamping area, the wire-pressing pulley is suitable for moving downward and approaching the wire-paying pulley under the action of gravity and elastic force, thereby making the pulled wire located in the closed clamping area.

[0006] Preferably, a pointed portion is provided at the front end of the traction walking plate; when the traction walking plate cooperates with the clamping area, the wire pressing pulley is suitable for moving away from the wire releasing pulley under the squeezing cooperation of the pointed portion.

[0007] Preferably, a limiting component 1 is provided on the main frame; when the traction walking plate is not engaged with the clamping area, the wire pressing pulley is suitable for being locked in a first direction under the action of the limiting component 1, so that a distance is left between the wire pressing pulley and the wire releasing pulley; when the traction walking plate is engaged with the clamping area, the wire pressing pulley is suitable for sliding and disengaging from the limiting component 1, thereby releasing the lock on the wire pressing pulley in the first direction.

[0008] Preferably, a guide frame is installed on the wire pressing pulley, and the limit assembly includes a limit rod, and the limit rod is elastically and horizontally slidably installed on the top of the main frame; when the traction walking plate is not matched with the clamping area, the bottom end of the guide frame is abutted against the limit rod, so that the wire pressing pulley is locked in the first direction; when the traction walking plate is matched with the clamping area, the guide frame is suitable for moving up and away from the limit rod, and then the limit rod moves under the action of elastic force and is misaligned with the guide frame to release the lock on the first direction of the wire pressing pulley.

[0009] Preferably, a second limit assembly is provided on the main frame; when the traction walking plate is not coordinated with the clamping area, the second limit assembly is suitable for being in an unlocked state with the cooperation of the guide frame; when the traction walking plate passes over the clamping area, the second limit assembly is in a locked state, thereby causing the wire pressing pulley to be locked in the second direction, and at this time the wire limit is locked in the clamping area.

[0010] Preferably, the second limiting component includes a limiting plate, which is elastically rotatably installed on the top of the main frame and has a limiting groove on the bottom; when the traction walking plate is not matched with the clamping area, the guide frame abuts against the side of the limiting plate and is away from the limiting groove; when the traction walking plate passes the clamping area, the guide frame is suitable for first moving to the extreme position along the first direction and disengaging from the limiting plate, and then the limiting plate rotates under the action of elastic force and makes the limiting groove match with the guide frame, thereby realizing the locking of the wire pressing pulley in the second direction.

[0011] Preferably, a limiting component three is provided on the main frame; when the traction walking plate is not matched with the clamping area, the limiting component three is suitable for limiting the traction rope of the traction walking plate so that the traction rope is away from the wire pressing pulley.

[0012] Preferably, a baffle is installed at the top of the main frame, and the limiting component three includes a limiting wheel and a limiting frame, the limiting frame is elastically rotatably installed on the main frame, and the limiting wheel is rotatably installed on the bottom end of the limiting frame; the traction ropes are abutted against and limited at the bottom end of the limiting wheel, the traction ropes are suitable for buffering the tension under the elastic rotation of the limiting frame, and the baffle is suitable for limiting the maximum rotation angle range of the limiting frame.

[0013] Preferably, a buffer assembly is provided between the traction walking plate and the main frame; when the traction walking plate passes over the clamping area, the buffer assembly is suitable for absorbing the impact force between the balance hammer of the traction walking plate and the main frame.

[0014] Preferably, the buffer assembly includes a buffer plate, and the buffer plate is elastically slidably mounted on the counterweight or the main frame.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] (1) The present invention provides a wire pressing pulley with an elastic sliding installation, and a clamping area is formed between the wire pressing pulley and the wire releasing pulley. Before the wire is released, the clamping area can limit the traction rope of the traction board; and after the wire is released, the clamping area can limit the wire; thereby, the traction rope and the wire can be prevented from jumping wires and jumping grooves before and after the wire is released, and the clamping area can also be automatically opened and closed under the action of the traction board, that is, the whole process does not require manual intervention in the operation of the wire pressing pulley, saving manpower and improving work efficiency.

[0017] (2) The present invention is provided with a limit component 1 and a limit component 2. Under the action of the limit component 1, a distance can be left between the wire pressing pulley and the wire releasing pulley in the initial state, which can make it easier to cooperate with the traction board. Under the action of the limit component 2, the wire pressing pulley is locked in the first direction and the second direction, so that the wire in the clamping area can be "hardly" locked, thereby avoiding the wire jumping in special circumstances, and further improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the initial state of the conductor pulley of the present invention.

[0020] Figure 3 It is a schematic diagram of the enlarged structure of point A of the present invention.

[0021] Figure 4 It is a schematic diagram of the traction walking board of the present invention passing through the conductor pulley.

[0022] Figure 5 It is a schematic diagram of the enlarged structure of point B of the present invention.

[0023] Figure 6 It is a schematic structural diagram of the traction walking plate of the present invention after passing through the conductor pulley.

[0024] Figure 7 It is a schematic diagram of the enlarged structure of point C of the present invention.

[0025] Figure 8 This is a schematic diagram of the wire pressing pulley after disassembly of the present invention.

[0026] Fig. 9 It is a schematic diagram of the initial structure of the wire pressing pulley, the limiting component 1 and the limiting component 2 of the present invention.

[0027] Fig.10 It is a schematic diagram of the state of the wire pressing pulley of the present invention when it moves upward.

[0028] Fig.11 It is a schematic diagram of the state of the wire pressing pulley of the present invention after moving downward.

[0029] Fig.12 It is a schematic diagram of the traction walking plate structure of the present invention.

[0030] Fig.13 It is a schematic structural diagram of the first embodiment of the buffer assembly of the present invention.

[0031] Fig.14 It is a schematic structural diagram of the second embodiment of the buffer assembly of the present invention.

[0032] Fig.15 It is a schematic diagram of the third structure of the limit assembly of the present invention.

[0033] Fig.16 It is a schematic diagram of the enlarged structure of point D of the present invention.

[0034] In the figure: 1. traction walking board; 101. balance hammer; 2. main frame; 3. wire-releasing pulley; 4. wire-pressing pulley; 5. limit assembly one; 501. limit rod; 6. limit assembly two; 601. limit plate; 7. guide frame; 8. limit groove; 9. pointed head; 901. wedge block; 10. buffer assembly; 1001. buffer plate; 11. limit assembly three; 1101. limit wheel; 1102. limit frame; 12. baffle. DETAILED DESCRIPTION

[0035] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0036] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0037] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0038] In the existing technology, the current overhead line crossing laying generally adopts tension traction laying, combined with the crossing frame sealing net protection to ensure the safety of the crossing laying. The existing main protection schemes are:

[0039] (1) Scaffolding-type spanning frame method: According to the distance and height of the spanning object, bamboo, steel pipes, and aluminum pipes are used in advance to build the spanning line, road, and railway on both sides according to the scaffolding model. After the construction, the spanning net made of insulating materials is arranged for defense. (2) Suspension-type spanning frame method: the spanning load-bearing cables and sealing nets are supported by temporary crossbeams on the tower or scaffolding built on the ground to form a spanning protection method. (3) Lattice-type spanning frame method: the main body or horizontal support of the lattice spanning frame adopts steel or aluminum alloy structure, and then a protective net is arranged to form a spanning protection. That is, traditional spanning frames are expensive and labor-intensive, and operators need to climb high, so there is a risk of falling from heights.

[0040] One of the preferred embodiments of the present application is as follows: Figures 1 to 16 As shown, a flexible corridor-type crossing wire-laying system with an automatically opening and closing pulley comprises a traction walking board 1, a main frame 2, a wire-laying pulley 3, and a wire-pressing pulley 4, wherein the wire-laying pulley 3 is installed at the lower end of the main frame 2, and the wire-pressing pulley 4 is elastically and vertically slidably installed at the upper end of the main frame 2 (possibly through a spring). It should be known that when the wire-pressing pulley 4 is not subjected to other forces, it is in a close state to the wire-laying pulley 3 under the action of gravity and elastic force, and the wire-pressing pulley 4 is located directly above the wire-laying pulley 3, and a clamping area is formed between the two.

[0041] It should be noted that the close state between the medium voltage line pulley 4 and the wire-releasing pulley 3, that is, the two are very close, can be regarded as a state of offsetting, but in fact there is no offset, because if there is offset, it will cause a certain friction resistance to the rotation between the two.

[0042] It can be understood that in the initial state, that is, when the traction board 1 and the clamping area are not matched, the clamping area is in a closed state. When the wire-laying operation is performed, the traction rope on the traction board 1 will pass through the clamping area, and the clamping area can also limit the traction rope to prevent the traction rope from jumping wires and jumping grooves; and when the traction rope pulls the traction board 1 to cooperate with the clamping area, since the wire pressing pulley 4 is elastically installed, the wire pressing pulley 4 will slide upward under the extrusion of the traction board 1, that is, the wire pressing pulley 4 will move up and away from the wire-laying pulley 3, so that the clamping area is opened, so that the traction board 1 can pass through the clamping area. When the traction board 1 passes over (through) the clamping area, the pulled conductor (i.e., the transmission line) will be located in the corresponding groove on the wire-releasing pulley 3 (inside the lower end of the clamping area), and the wire-pressing pulley 4 will move downward under the action of gravity and elastic force (of the spring) until it is close to the wire-releasing pulley 3, so that the pulled conductor is located in the closed clamping area.

[0043] It can be seen that by providing an elastically installed wire-pressing pulley 4, before the conductor is deployed, the wire-pressing pulley 4 can limit and lock the traction rope to prevent the traction rope from jumping wires and jumping grooves; when the conductor is deployed, the wire-pressing pulley 4 automatically moves up and opens under the action of the traction walking plate 1 to facilitate the wire deployment operation; after the conductor is deployed, the wire-pressing pulley 4 can automatically move down and reset to achieve limit locking of the deployed conductor, thereby preventing the conductor from jumping wires and jumping grooves; it effectively avoids safety accidents occurring during the conductor deployment process, and the entire process does not require manual intervention in the operation of the wire-pressing pulley 4, saving manpower and improving work efficiency.

[0044] On the other hand, when the traction walking plate 1 cooperates with the conductor pulley (i.e., the wire-releasing pulley 3 and the wire-pressing pulley 4), the traction walking plate 1 will be subjected to a large force, which may cause the wire to break. However, at this time, the wire-pressing pulley 4 will be pressed against the traction walking plate 1 under the action of the spring, so that the traction walking plate 1 will not cross the conductor pulley under the action of inertia and suddenly fall, thereby further improving safety.

[0045] In the above operation process, since the movement of the wire pressing pulley 4 depends on the squeezing effect of the traction board 1, the shape structure of the front end of the traction board 1 will have an important influence on the squeezing movement of the pulley. Figure 1 as well as Fig.12As shown, a pointed portion 9 is provided at the front end of the traction walking plate 1. When the traction walking plate 1 cooperates with the clamping area, the pointed portion 9 of the traction walking plate 1 will first come into contact with the wire pressing pulley 4 and the wire releasing pulley 3, that is, the pointed portion 9 can easily enter the gap between the wire pressing pulley 4 and the wire releasing pulley 3. After the traction walking plate 1 continues to move, the wire pressing pulley 4 can move up more easily under the squeezing cooperation of the pointed portion 9. Therefore, the design of the pointed portion 9 not only improves the traction efficiency, but also reduces the wear on the two pulleys during the traction process, thereby extending the service life of the device.

[0046] The pointed portion 9 has various structural forms, including but not limited to the following two:

[0047] Structure 1 (such as Fig.12 As shown): the pointed portion 9 is a wedge-shaped block 901, and the wedge-shaped block 901 has a triangular block structure; when the traction walking plate 1 cooperates with the clamping area, the wire pressing pulley 4 can slide upward under the wedge-shaped squeezing cooperation of the wedge-shaped block 901.

[0048] Structure 2 (not shown): the pointed portion 9 may be a "bullet head" structure or a conical structure.

[0049] It should be noted that when the structure 1 is adopted, the front end of the wedge block 901 can be set to be wider and narrower, so that the wedge block 901 can easily enter the gap between the wire pressing pulley 4 and the wire releasing pulley 3 when they are matched, and the stability between the three is also good. If it is set to a conical structure, because the wire pressing pulley 4 and the wire releasing pulley 3 are both circular structures, they are in curved contact with the conical structure, and the stability is not good enough when they are matched. Therefore, it is preferred to adopt the form of structure 1.

[0050] Based on the above embodiment, it should be known that when the traction board 1 initially cooperates with the wire pressing pulley 4 and the wire releasing pulley 3, if there is a large gap between the wire pressing pulley 4 and the wire releasing pulley 3, the traction board 1 can be pulled more easily and smoothly. Of course, this gap cannot be too large, because if it is too large, the traction rope of the traction board 1 will be prone to the risk of jumping; therefore, the size of the gap can be set by technicians in this field according to actual conditions.

[0051] Therefore, in this implementation, Figure 2 and Figure 3As shown, a limit assembly 5 can be provided on the main frame 2. It can be understood that when the traction board 1 and the clamping area are not matched, the wire pressing pulley 4 can be locked in the first direction under the action of the limit assembly 5. That is to say, under the action of the limit assembly 5, when the entire wire pulley is in the initial state, there will be a gap between the wire pressing pulley 4 and the wire releasing pulley 3, and this gap is for the convenience of initial matching with the traction board 1.

[0052] It should be noted here that the first direction is the direction in which the wire pressing pulley 4 moves downward along the main frame 2 and approaches the wire paying-out pulley 3 , and conversely, the second direction is the direction in which the wire pressing pulley 4 moves upward along the main frame 2 and away from the wire paying-out pulley 3 .

[0053] When the traction board 1 cooperates with the clamping area, the wire pressing pulley 4 will move in the second direction under the action of the traction board 1, and the wire pressing pulley 4 will be disengaged from the position limiting component 1 5, so that the position limiting component 1 5 releases the lock on the first direction of the wire pressing pulley 4. In other words, after the wire pressing pulley 4 moves downward in the first direction under the action of elastic force and gravity, the wire pressing pulley 4 can move downward to the limit distance, so that the wire pressing pulley 4 and the wire releasing pulley 3 return to a state of approximately counteracting each other, thereby limiting the position of the pulled wire.

[0054] As a further description of the above embodiment: Figure 3 and Figure 5 As shown, a guide frame 7 is installed on the wire pressing pulley 4, and the limiting component 5 includes a limiting rod 501, and the limiting rod 501 is elastically and horizontally slidably installed at the top position of the main frame body 2 (through a spring).

[0055] It can be understood that when the traction plate 1 is not matched with the clamping area, that is, in the initial state, the bottom end of the guide frame 7 is matched with the limit rod 501, that is, the limit rod 501 will prevent the guide frame 7 from moving downward, thereby locking the wire pressing pulley 4 in the first direction, but will not lock the wire pressing pulley 4 in the second direction. When the traction plate 1 is matched with the clamping area, that is, at this time, the guide frame 7 will move up synchronously with the wire pressing pulley 4, and then the guide frame 7 will separate from the limit rod 501. At this time, the limit rod 501 will move under the elastic force of the spring and displace with the guide frame 7, such as Fig.11 As shown, the locking of the wire pressing pulley 4 in the first direction can be released.

[0056] Furthermore, in order to improve the stability of the limiting rod 501 when it cooperates with the guide frame 7, a limiting block can be provided at the end of the limiting rod 501. For example, the limiting block can be spot-welded to the end of the limiting rod 501 through a nut. Figure 3As shown, when the two cooperate, the limiting block abuts against the side of the guide frame 7, thereby limiting the axial movement of the limiting rod 501, so that the stability of the limiting rod 501 when cooperating with the guide frame 7 is greatly improved.

[0057] We know that after the traction board 1 passes through the wire pulley, the wire will be locked in the clamping area under the action of the wire pressing pulley 4, but because the wire pressing pulley 4 is elastically slidably installed, the limiting stability of the wire is not very good. For example, during the process of wire release, it is easy for the wire tension to suddenly increase, so that the wire is tightened and straightened, that is, the wire will easily move upward and squeeze the wire pressing pulley 4 (and the spring limiting force on the wire pressing pulley 4 will not be very large, because if the spring limiting force is too large, it will interfere with the movement of the traction board 1), so the wire pressing pulley 4 will easily move up and away from the wire release pulley 3 under the action of the wire, so that the wire is prone to jump in this case.

[0058] Therefore, in order to solve the above technical problems, in one embodiment of the present application, Figure 3 and Figure 7 As shown, a second limit assembly 6 can also be provided on the main frame 2. It can be understood that when the traction walking board 1 is not matched with the clamping area, that is, in the initial state, the limit assembly is in an unlocked state with the cooperation of the guide frame 7, and the unlocked state means that the second limit assembly 6 does not work on the guide frame 7 at this time; the purpose is to prevent interference with the movement of the guide frame 7 when the traction walking board 1 passes through the clamping area later.

[0059] When the traction walking plate 1 passes the clamping area, the limit component 2 6 will be in a locked state. The locked state means that the guide frame 7 will move to the limit distance along the first direction (downward), and the limit component 2 6 will work to lock the guide frame 7 in the second direction (upward), thereby locking the wire pressing pulley 4 in the second direction. It should be known that since the guide frame 7 moves to the limit distance in the first direction, it also achieves self-locking in the first direction, thereby locking the wire pressing pulley 4 in the first direction and the second direction, so that the wire in the clamping area can be "hardly" locked, thereby avoiding the situation where the wire jumps in special circumstances.

[0060] As a further description of the above embodiment: Figure 5 , Fig.10 and Fig.11 As shown, the limiting component 2 6 includes a limiting plate 601, a limiting groove 8 is set at the bottom end of the limiting plate 601, and the limiting plate 601 is elastically rotatably installed on the top of the main frame 2 (through a spring or a torsion spring), and the limiting plate 601 is located above the limiting rod 501.

[0061] It can be understood that when the traction board 1 is not matched with the clamping area, in the initial state, Figure 3 and Fig. 9 As shown, at this time, the guide frame 7 is against the side of the limiting plate 601, and the guide frame 7 is away from the limiting groove 8, and at this time, the elastic member (spring or torsion spring) on ​​the limiting plate 601 is in an energy storage state.

[0062] When the walking plate 1 is pulled over the clamping area, the guide frame 7 will first move in the first direction (downward) to the limit position. It should be known that, as can be seen from the above, since the guide frame 7 is initially "raised" by a part of the limit rod 501, the guide frame 7 will move down lower than the initial position at this time, and then will be out of cooperation with the limit plate 601, and the limit plate 601 will rotate under the elastic force of the elastic member, such as Fig.11 As shown, the rotating limit groove 8 will correspond to the guide frame 7. That is to say, if the guide frame 7 moves upward at this time, it will be stuck in the limit groove 8 on the limit plate 601, thereby locking the wire pressing pulley 4 in the second direction.

[0063] It should be known that, in the initial state, although the wire pressing pulley 4 is locked in the first direction under the action of the limit assembly 1 5, the wire pressing pulley 4 is limited in the second direction by the elastic force of the spring. Before the traction board 1 passes through the wire pulley, when the traction rope of the traction board 1 is in the clamping area, if the traction rope is subjected to a large tension at this time, it will easily drive the wire pressing pulley 4 to move upward, thereby destroying the initial state of the wire pressing pulley 4, that is, the limit assembly 1 5 and the limit assembly 2 6 are triggered in advance, thereby causing interference between the traction board 1 and the wire pulley.

[0064] Therefore, in order to solve the above technical problems, one of the embodiments of the present application is as follows: Fig.15 As shown, a limiting component 3 11 can be provided at the top of the main frame 2. When the traction board 1 is not matched with the clamping area, the limiting component 3 11 can limit the traction rope of the traction board 1 so that the traction rope is away from the wire pressing pulley 4, that is, during the traction process, the traction rope will not contact the wire pressing pulley 4.

[0065] As a further description of the above embodiment: Fig.15 and Fig.16 As shown, a baffle 12 is installed at the top of the main frame 2, and the limiting component 11 includes a limiting wheel 1101 and a limiting frame 1102, wherein the side of the limiting frame 1102 is elastically rotatably installed on the main frame 2 (can be through a spring or a torsion spring), and the limiting wheel 1101 is rotatably installed on the bottom end of the limiting frame 1102.

[0066] It is understandable that when the traction rope passes through the wire pulley, the traction rope will abut against the bottom end of the limiting wheel 1101, thereby limiting the traction rope. At the same time, the limiting wheel 1101 can also guide the traction rope. During the traction process of the wire, the tension of the traction rope will change. At this time, the limiting frame 1102 will rotate, and the elastic member (spring or torsion spring) can buffer the change in the tension of the traction rope, thereby greatly improving the stability of the traction process. Of course, the limiting frame 1102 also has a maximum rotation angle range, otherwise the traction rope will move up and contact the wire pressing pulley 4. Fig.16 As shown, when the top end of the limit frame 1102 abuts against the baffle 12, the limit frame 1102 will rotate upward to the limit position. Of course, the traction rope will not touch the wire pressing pulley 4 at this time.

[0067] After the traction walking plate 1 passes through the conductor pulley, the limiting wheel 1101 will be pressed against the traction walking plate 1 under the action of elastic force, thereby buffering the inertial impact force after the traction walking plate 1 is separated from the conductor pulley, thereby improving the stability of the two after separation.

[0068] In one of the embodiments of the present application, Fig.13 and Fig.14 As shown, we know that when the traction board 1 and the wire pulley are separated, the counterweight 101 on the traction board 1 will quickly rotate downward under the action of gravity after passing over the wire pulley, and then it will easily collide with the main frame 2 under the driving of inertia and other forces. Therefore, a buffer assembly 10 can be provided between the traction board 1 and the main frame 2, so as to absorb the impact force between the counterweight 101 and the main frame 2, so as to reduce the impact and damage caused by the collision.

[0069] Specifically, the buffer assembly 10 includes a buffer plate 1001, and there are multiple ways to install the buffer plate 1001, including but not limited to the following three:

[0070] Method 1: If Fig.13 As shown, the buffer plate 1001 can be installed at the upper end position of the balance hammer 101 through spring elastic sliding.

[0071] Method 2: If Fig.14 As shown, the buffer plate 1001 can be installed at the lower end of the main frame 2 through spring elastic sliding.

[0072] It should be noted that both methods can meet the actual requirements, and those skilled in the art can make a choice according to the actual situation. However, for the actual situation, when conducting wire laying, there must be multiple sets of wire laying pulleys 3, while generally only one traction traveling board 1 is needed. Therefore, considering cost and actual application, the buffer board 1001 is preferably installed on the traction traveling board 1, that is, the first method is preferably adopted.

[0073] One embodiment of the present application is as Figure 4 shown. The main frame body 2 is integrally in a rectangular structure, and the main frame body 2 includes a pair of U-shaped frames. The wire pressing pulley 4 is installed on the upper U-shaped frame, and the wire laying pulley 3 is installed on the lower U-shaped frame. The two U-shaped frames can be detachably installed by bolts, so as to realize the quick disassembly and assembly of the main frame body 2.

[0074] The working principle of the present invention is:

[0075] As Figure 1 shown, the flexible corridor protection system is composed of a bearing rope, a guiding rope, an interval connecting rope, a traction rope, a traction traveling board 1, an automatic opening and closing pulley, a tensioning mechanism, an anchoring mechanism, etc. It is applicable to the spanning wire laying of a newly built line and is more applicable to the replacement operation of the ground wire and phase wire of an old line; and the automatic opening and closing pulley (i.e., on the wire pressing pulley 4 and the wire laying pulley 3) is designed with a double-layer multi-wheel structure to facilitate the traction of multiple stranded wires.

[0076] Device preparation: The devices of the spanning protection system need to be checked according to the construction operation conditions such as the spanning distance, the specifications of the traction conductor, the number of traction sub-conductors, and the position of the temporary anchoring point, etc., and then the devices of the corresponding specifications and quantities are prepared, and other tension traction and other equipment are implemented.

[0077] Laying the bearing rope: With the help of a drone, a guiding rope with a diameter of 4 - 6 mm is牵引 from one side tower of the span to the opposite side tower, and then a traction device such as a winch is used to drag a bearing rope with a diameter of 12 - 16 mm through the guiding rope. A transmission rope is attached to the bearing rope during dragging and temporarily fixed on the opposite side tower. Both ends of the bearing rope are anchored and locked near the cross arms of the two towers or on the ground through a turning pulley.

[0078] Connecting the flexible corridor pulleys: On the ground, the automatic closing pulleys are connected in series with an interval connecting rope with a length of 10M or 15M, etc. The equal-length connecting ropes are connected to the upper end and the bottom two connecting rings of the automatic opening and closing pulley. An anchoring connecting rope with a length greater than the distance between the anchoring points is connected to the connecting rings of the automatic opening and closing pulleys at the front and rear ends.

[0079] Flexible corridor layout: The traction rope passes through the connected automatic closing pulley and the automatic opening and closing pulley anchor fixed connection rope to make a buckle, and is connected to the transfer rope that is temporarily anchored on the opposite tower by the load-bearing rope in advance. After the automatic opening and closing pulleys are hung on the load-bearing ropes in turn, the fixed connection rope of the pulley at the rear end of the pulley string is fixed on the tower or turned to the bottom of the tower or on the ground, and then the traction rope and the automatic opening and closing pulley are pulled by the transfer rope through manual or mechanical equipment. After the automatic opening and closing pulleys are evenly distributed on the load-bearing ropes, the anchor connection rope of the front pulley is also tensioned on the cross arm or U-shaped hanging ring on the tower, thereby forming a flexible corridor-style crossing protection channel in the air.

[0080] Crossing wire laying operation: After the traction rope passes through the conductor pulley, the front end of the traction rope is connected to the capstan or traction machine, and the rear end is connected to the (intelligent) traction board 1. The (intelligent) traction board 1 leads the sub-conductor through the pulley, and the tension of the deployed conductor is controlled by the tension machine. The intelligent traction board 1 can monitor the traction force of each sub-conductor, the balance posture of the board, and the video of the front and rear ends of the traction board 1 in real time, which is convenient for on-site command and control of the speed and tension of the traction and tension equipment. Of course, the intelligent traction board 1 is also common knowledge known to those skilled in the art.

[0081] (i) In the initial state, that is, when the traction board 1 is not in cooperation with the wire pulley, Figure 3 and Fig. 9 As shown, at this time, the guide frame 7 overlaps and abuts against the limit rod 501, that is, the limit rod 501 limits the guide frame 7 in the first release direction, so that there is a certain distance between the wire pressing pulley 4 and the wire releasing pulley 3, and at the same time, the guide frame 7 also abuts against the side of the limit plate 601. The limit wheel 1101 limits the traction rope to prevent the traction rope from acting on the wire pressing pulley 4 to move up. (II) As shown in FIG. Figure 1 As shown, when the traction board 1 cooperates with the wire pulley, the wedge block 901 of the traction board 1 will enter the gap between the wire pressing pulley 4 and the wire releasing pulley 3, and then the wire pressing pulley 4 will slide upward under the wedge-shaped extrusion. Figure 5 and Fig.10 As shown, when the guide frame 7 is separated from the limit rod 501, the limit rod 501 will move under the elastic force of the spring and be displaced with the guide frame 7, so as not to interfere with the subsequent downward movement of the guide frame 7. (III) When the traction board 1 is separated from the wire pulley, the wire pressing pulley 4 will slide downward under the action of gravity and elastic force, as shown in FIG. Figure 7 as well as Fig.11 As shown, when the guide frame 7 moves down to the limit position, the guide frame 7 will be out of cooperation with the limit plate 601, and the limit plate 601 will rotate under the elastic force of the elastic member, as shown in FIG. Fig.11As shown, the rotating limit groove 8 will correspond to the guide frame 7, and then the guide frame 7 is stuck in the limit groove 8 to realize the locking of the wire pressing pulley 4 in the second direction. Since the guide frame 7 also moves to the limit distance in the first direction, it also realizes self-locking in the first direction, so that the wire pressing pulley 4 is locked in the first direction and the second direction, and then the wire can be "hardly" locked in the clamping area, which can avoid the phenomenon of wire jumping and slot jumping during the wire laying process, and thus can also prevent the wire from jumping and twisting during traction. At the same time, this structure can not only prevent wire jumping, but also prevent the traction board 1 from retracting and falling onto the crossing running line or highway or railway when the line is broken or dropped.

[0082] It is necessary to add that:

[0083] Intelligent monitoring and early warning: The intelligent traction board 1 has the functions of real-time collection of front and rear videos of the traction board 1 and monitoring the traction force of the sub-conductor, the inclination posture of the board, the moving position, etc., and can perform early warning defense, thereby avoiding accidents such as flipping of the traction board 1 and twisting of the conductor, and also avoiding the occurrence of over-traction tower collapse accidents caused by obstruction.

[0084] Protection net protection: The flexible corridor crossing protection system is equipped with automatic opening and closing pulleys every 10-15 meters. The pulleys are connected and positioned with interval connecting ropes. In order to prevent the line from breaking or falling during the traction crossing and laying, a protective net is installed between the interval connecting ropes on both sides of the lower part of the pulley. When an accident occurs, the traction walking board 1 and the conductors can be supported in the net.

[0085] The advantages of the technical solution of this application compared with the prior art are as follows:

[0086] Reduce construction costs: The cost of building traditional crossing frames is relatively high, generally ranging from more than 100,000 yuan to several hundred thousand yuan. The investment in this protection system is one-time and reusable, so a lot of costs for building crossing frames can be saved.

[0087] Reduce operational risks: a. The construction of traditional crossing frames requires a large number of workers at heights, and it is difficult to effectively protect workers at heights during the construction process, so there is a risk of falling from heights; currently, most crossing frames are built with bamboo, and there is no calculation basis for the mechanical properties of bamboo, and bamboo is prone to mold and cracking, so there is a risk; b. This protection system uses devices that can be verified and tested to reduce risks; c. This crossing protection system is set up close to the position where the conductors are laid, so when the line is dropped or broken, the impact force is relatively small; d. The pulleys arranged in this crossing protection system are spaced 10-15M apart, so when the line is dropped or broken, the automatic opening and closing pulley is in a closed state, so the traction walking plate 1 cannot retreat and retract, thereby reducing the length of the fall and the impact force, and preventing the line from dropping or breaking and affecting the operation of the live running lines and roads and railways below.

[0088] Improve work efficiency: a. The use of this crossing protection system can establish an effective and safe crossing protection channel within one to two hours. Compared with the traditional construction of a crossing frame and a net protection method, the construction period is reduced by several days, thereby improving work efficiency; b. Compared with the construction of traditional crossing frames, the establishment of this crossing protection system is not affected by the on-site terrain environment. The crossing protection channel is quickly established at a high altitude using the iron towers on both sides of the crossing, thereby ensuring the construction progress; c. This crossing protection system is set up close to the installation position of the conductor. Compared with the traditional crossing frame protection, it is higher in height and is easier to pass the approval of the highway, railway and power line operation management departments, thereby improving the construction progress.

[0089] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A flexible corridor-type crossing wire-laying system with an automatically opening and closing pulley, characterized in that: include: Traction walking board; Main frame; A wire-paying pulley, the wire-paying pulley is installed at the lower end of the main frame; as well as A wire pressing pulley is elastically and vertically slidably installed on the upper end of the main frame, and a clamping area is formed between the wire pressing pulley and the wire-releasing pulley; when the traction walking plate cooperates with the clamping area, the wire pressing pulley is suitable for sliding and moving away from the wire-releasing pulley under the drive of the traction walking plate; when the traction walking plate passes over the clamping area, the wire pressing pulley is suitable for moving downward and approaching the wire-releasing pulley under the action of gravity and elastic force, thereby making the pulled wire located in the closed clamping area.

2. The flexible corridor-type spanning wire-laying system with automatic opening and closing pulleys according to claim 1, characterized in that: The front end of the traction walking plate is provided with a pointed portion; when the traction walking plate cooperates with the clamping area, the wire pressing pulley is suitable for moving away from the wire releasing pulley under the squeezing cooperation of the pointed portion.

3. The flexible corridor-type spanning wire-laying system with automatic opening and closing pulleys according to claim 1 or 2, characterized in that: A limiting component 1 is provided on the main frame; when the traction walking plate is not matched with the clamping area, the wire pressing pulley is suitable for being locked in a first direction under the action of the limiting component 1, so that a distance is left between the wire pressing pulley and the wire releasing pulley; when the traction walking plate is matched with the clamping area, the wire pressing pulley is suitable for sliding and disengaging from the limiting component 1, thereby releasing the lock on the wire pressing pulley in the first direction.

4. The flexible corridor-type spanning wire-laying system with automatic opening and closing pulleys as claimed in claim 3, characterized in that: A guide frame is installed on the wire pressing pulley, and the limit assembly 1 includes a limit rod, which is elastically and horizontally slidably installed on the top of the main frame; when the traction walking plate is not matched with the clamping area, the bottom end of the guide frame is abutted against the limit rod, so that the wire pressing pulley is locked in the first direction; when the traction walking plate is matched with the clamping area, the guide frame is suitable for moving up and away from the limit rod, and then the limit rod moves under the action of elastic force and is misaligned with the guide frame to release the lock of the wire pressing pulley in the first direction.

5. The flexible corridor-type spanning wire-laying system with automatic opening and closing pulleys according to claim 4, characterized in that: A second limit assembly is provided on the main frame; when the traction walking plate is not matched with the clamping area, the second limit assembly is suitable for being in an unlocked state with the cooperation of the guide frame; when the traction walking plate passes over the clamping area, the second limit assembly is in a locked state, thereby causing the wire pressing pulley to be locked in the second direction, and at this time the wire limit is locked in the clamping area.

6. The flexible corridor-type spanning wire-laying system with automatic opening and closing pulleys according to claim 5, characterized in that: The second limiting component includes a limiting plate, which is elastically rotatably installed on the top of the main frame and has a limiting groove at the bottom; when the traction walking plate is not matched with the clamping area, the guide frame is against the side of the limiting plate and away from the limiting groove; when the traction walking plate passes over the clamping area, the guide frame is suitable for first moving to the extreme position along the first direction and disengaging from the limiting plate, and then the limiting plate rotates under the action of elastic force and makes the limiting groove match with the guide frame, thereby realizing the locking of the wire pressing pulley in the second direction.

7. The flexible corridor-type spanning wire-laying system with automatic opening and closing pulleys according to claim 6, characterized in that: A limiting component three is arranged on the main frame; when the traction walking plate is not matched with the clamping area, the limiting component three is suitable for limiting the traction rope of the traction walking plate so that the traction rope is away from the wire pressing pulley.

8. The flexible corridor-type spanning wire-laying system with automatic opening and closing pulleys according to claim 7, characterized in that: A baffle is installed at the top of the main frame, and the limiting component three includes a limiting wheel and a limiting frame. The limiting frame is elastically rotatably installed on the main frame, and the limiting wheel is rotatably installed on the bottom end of the limiting frame; the traction ropes are abutted against and limited at the bottom end of the limiting wheel, and the traction ropes are suitable for buffering the tension under the elastic rotation of the limiting frame, and the baffle is suitable for limiting the maximum rotation angle range of the limiting frame.

9. The flexible corridor-type spanning wire-laying system with automatic opening and closing pulleys according to claim 1, characterized in that: A buffer component is arranged between the traction walking plate and the main frame; when the traction walking plate passes over the clamping area, the buffer component is suitable for absorbing the impact force between the balance hammer of the traction walking plate and the main frame.

10. The flexible corridor-type spanning wire-laying system with automatic opening and closing pulleys according to claim 9, characterized in that: The buffer assembly includes a buffer plate, and the buffer plate is elastically slidably mounted on the counterweight or the main frame.

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