CN220977732U

CN220977732U - Rope penetrating accessory

Info

Publication number: CN220977732U
Application number: CN202323063757.9U
Authority: CN
Inventors: 李冰; 张建金; 邹孔庆; 郝玉柱
Original assignee: China Railway Fourth Bureau Group Co ltd Steel Structure Construction Branch; Vsl Engineering Co ltd
Current assignee: China Railway Fourth Bureau Group Co ltd Steel Structure Construction Branch; Vsl Engineering Co ltd
Priority date: 2023-11-10
Filing date: 2023-11-10
Publication date: 2024-05-17
Anticipated expiration: 2033-11-10

Abstract

The utility model belongs to the technical field of prestress construction, and particularly relates to a rope threading auxiliary, which comprises a bottom plate which is in a strip shape as a whole, wherein a traction rope connecting unit for connecting a traction rope and a steel strand connecting unit for connecting steel strands are arranged on the bottom plate, and a bracket is detachably connected on the bottom plate, so that the bracket can maintain the conveying posture of the bottom plate in an outer sleeve in the early stage of rope threading operation, the bottom plate, the steel strands and the traction rope are prevented from being turned and wound in the outer sleeve in the rope threading process, and meanwhile, the bracket can also support the steel strands which finish the traction operation, thereby separating the pulled steel strands from other steel strands which are installed in the outer sleeve. And in the later stage of the rope threading operation, the steel strand traction conveying under the compact space condition can be realized by removing the bracket retaining bottom plate. The bracket and the bottom plate can reliably protect the towed steel strand wires by combined action, realize the safe and rapid conveying of the steel strand wires, and improve the construction operation efficiency.

Description

Rope penetrating accessory

Technical Field

The utility model belongs to the technical field of prestress construction, and particularly relates to a lashing auxiliary.

Background

The stay cable is generally made of high-strength steel bars, steel wires or steel strands, a common parallel steel strand wire is formed by arranging a plurality of steel strands in parallel, and the steel strands need to penetrate into the outer sleeve one by one during construction. The applicant has previously filed a patent entitled "a lashing plate" (CN 202626843U), and provides a lashing plate, including connecting plate and the connecting unit that is used for connecting top of the tower and bridge deck hoist rope that sets up on the connecting plate, lashing plate still includes the fixed unit that is used for the rigid coupling cable steel strand wires, fixed unit is more than two and fixed mouthful and corresponding steel strand wires one-to-one setting. The cable threading plate can convey a plurality of steel strands at one time, but the steel strands are easy to rotate around the axial direction in the outer sleeve pipe cavity in the conveying process, or collide with the inner wall of the outer sleeve pipe and adjacent steel strands and wind, so that the steel wires are loosened or broken, and the construction efficiency and the construction quality are affected.

In order to avoid twisting of steel strands in the conveying process, chinese patent CN112796222A discloses an epoxy steel strand installation anti-overturning device and an anti-overturning method, wherein the anti-overturning device is hung on an installed steel strand, two steel strands to be installed are installed on a connecting buckle, and a winch pulls the anti-overturning device to displace in a sleeve to realize the traction effect of the steel strands. The anti-overturning device comprises a bearing platform for fixedly installing the steel strands, the bearing platform is connected with an annular connecting part through a hanging part, the annular connecting part is detachably sleeved on the installed steel strands, wing plates extending upwards are arranged on the left side and the right side of the bearing platform, when the bearing platform swings to a limiting position relative to the hanging part, the upper edges of the wing plates are propped against the annular connecting part or the hanging part, so that the bearing platform is prevented from overturning in a sleeve to drive the steel strands to rotate around the axial direction of the bearing platform, but the method can only be applied to the condition that the steel strands are arranged in the sleeve, and cannot be applied to traction and transportation of the first steel strands, and can not be applied to traction and transportation of the steel strands when the space in a sleeve is smaller in the later period of rope threading due to complex structure and large volume of the anti-overturning device.

Chinese patent CN104711929a discloses a traction pallet for steel strand inhaul cable construction, the pallet body is an arc pallet, steel strand fixing devices are arranged in the pallet body, connecting rod through holes are respectively arranged at two sides of the steel strand fixing devices, connecting rods are arranged in the through holes, and traction rope connectors are arranged at two ends of each connecting rod; the two sides of the supporting plate body are connected with the supporting plate wings through connecting plates and screws, the outer surfaces of the supporting plate wings are arc surfaces with the same diameter as the outer surfaces of the supporting plate body, the inner surfaces are planes, and the edges are chamfered. The design of the separation type of the support plate body and the support plate wings is that at the initial stage of hanging the rope, the assembly use can avoid the phenomenon that the traction support plate turns over due to the large space in the PE pipe in the process of transporting the rope, and the support plate wings can be dismantled after the space in the guide pipe is reduced to a certain extent along with the increase of the installation quantity of the inhaul cable at the later stage of hanging the rope, and the support plate bodies are independently used so as to ensure enough installation space to ensure that the rope is hung smoothly. The traction rope is connected to the both sides of this traction layer board, and the steel strand wires are connected to the middle part to the both sides detachable connection layer board pterygoid lamina at the layer board plate body, though can prevent that the steel strand wires that are pulled from taking place to overturn, avoid being pulled the steel strand wires that lie in the layer board lateral part in with the sleeve contact or the collision, but this can't isolate the contact or the collision of the steel strand wires that hang that lie in layer board plate body upside and traction steel strand wires, the protection to the steel strand wires in the outer tube traction transportation process still is not enough.

Disclosure of utility model

The utility model aims to provide a lashing auxiliary which can reliably protect a pulled steel strand.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a wear and take auxiliary member, is including wholly being bar platelike bottom plate, is equipped with the haulage rope connecting element that is used for connecting the haulage rope and is used for connecting the steel strand wires connecting element, can dismantle on the bottom plate and be connected with the bracket, and the bracket includes the die-pin of horizontal, and the top surface of die-pin is higher than haulage rope connecting element, steel strand wires.

Compared with the prior art, the utility model has the following technical effects: the bracket and the bottom plate are detachably matched, so that the bracket can maintain the conveying posture of the bottom plate in the outer sleeve at the early stage of rope threading operation, the bottom plate, the steel strands and the traction rope are prevented from being overturned and wound in the outer sleeve in the rope threading process, and meanwhile, the bracket can also support the steel strands which have completed traction operation, so that the pulled steel strands are separated from other steel strands which are installed in the outer sleeve. And in the later stage of the rope threading operation, the steel strand traction conveying under the compact space condition can be realized by removing the bracket retaining bottom plate. The bracket and the bottom plate can reliably protect the towed steel strand wires by combined action, realize the safe and rapid conveying of the steel strand wires, and improve the construction operation efficiency.

Drawings

The contents expressed in the drawings of the present specification and the marks in the drawings are briefly described as follows:

FIG. 1 is a schematic diagram of an embodiment of the utility model in use;

Fig. 2 is a perspective view of the first embodiment;

FIG. 3 is a schematic view of a cross-sectional view of an embodiment in use;

FIG. 4 is a schematic diagram of a second embodiment;

fig. 5 is a schematic diagram of a second embodiment.

In the figure: A. the traction rope comprises a traction rope body, a steel stranded wire body, a bottom plate body and a traction rope connecting unit body, wherein the traction rope body comprises a traction pipe cavity body and a steel stranded wire connecting unit body, the traction pipe cavity body comprises a traction rope body, a traction rope base plate body, a traction rope connecting unit body, a traction rope pipe cavity body, a traction rope connecting unit body, a steel stranded wire connecting unit body, a strip-shaped groove body, a bracket body, a vertical rod body, a vertical pipe body, a lower pipe body, a supporting rod body, a hollow pipe body and an end rod body.

Detailed Description

The following describes the embodiments of the present utility model in further detail by way of examples with reference to the accompanying drawings.

Example 1

As shown in fig. 2, the rope threading auxiliary comprises a bottom plate 10 which is in a strip-shaped plate shape as a whole, and a traction rope connecting unit 21 for connecting a traction rope a and a steel strand connecting unit 22 for connecting a steel strand B are fixedly arranged on the bottom plate 10. The bottom plate 10 is also provided with a bracket 30, the bracket 30 comprises a transversely arranged supporting rod 32, and the top surface of the supporting rod 32 is higher than the traction rope connecting unit 21, the steel strand connecting unit 22 and the steel strand B. The outer diameter of the traction rope a is generally smaller than the outer diameter of the steel strand B, i.e. the top surface of the support rod 32 is also higher than the traction rope a, and the top surface of the bracket 30 is higher than the base plate 10 and other components mounted on the base plate 10. In this way, when the traction rope A and the steel strand B are installed on the bottom plate 10 and displaced in the outer sleeve C, the steel strand B installed in the outer sleeve C can be reliably blocked from downwards hanging to contact with the rope penetrating auxiliary or the steel strand B, so that the reliable conveying of the traction steel strand B is ensured.

The steel strand connecting unit 22 is connected to the front end of the towed steel strand B, so as to facilitate the operation and avoid the bracket 30 blocking the operation line of sight or affecting the operation of the operation tool, in this embodiment, the steel strand connecting unit 22 is located at the front side of the supporting rod 32, where the front end refers to the use state adjacent to the steel strand conveying target end, and correspondingly, the use state far away from the steel strand conveying end is referred to as the rear end. In this way, as shown in fig. 1, a space for accommodating the towed steel strand B is provided between the bracket 30 and the bottom plate 10, and in order to facilitate separation of the towed steel strand B from the towing aid, the embodiment adopts a mode that the supporting rods 32 are spaced from the bottom plate 10, that is, the distance between the bottom surface of the supporting rods 32 and the bottom plate 10 is greater than the outer diameter of the steel strand B. As shown in fig. 2, the bracket 30 comprises a vertical rod 31, a supporting rod 32 connected with the top of the vertical rod 31, and the vertical rod 31 is connected with the supporting rod 32 and the bottom plate 10 in a transitional manner and maintains the distance between the two. In other embodiments, the supporting rod 32 may be directly connected to the bottom plate 10, and the supporting rod 32 may have a notch for accommodating the steel strand B and the traction rope a. In the specific implementation, as shown in fig. 1, after the steel strand B penetrates through the outer sleeve C and is conveyed to the target position, the steel strand B is connected with another traction rope a through a connecting piece, then the limit of the steel strand B and the steel strand connecting unit 22 is released, and the steel strand B can be conveyed to the next target position continuously under the traction of the traction rope a directly connected with the steel strand B, so that the traction conveying construction of the steel strand B is simpler, more convenient, safer and more reliable.

In this embodiment, the bottom end of the upright 31 is connected with the bottom plate 10 by a screw, and the top end is connected with the supporting rod 32 by a screw, that is, the upright 31, the supporting rod 32 and the bottom plate 10 form a detachable fit. When in use, the upright rod 31 or the supporting rod 32 with proper size can be replaced when in lashing operation according to the requirement, and the bracket 30 can be dismantled to directly apply the bottom plate 10 to realize the conveying of the steel strand B when the inner space of the outer sleeve C is insufficient in the later stage of lashing operation.

In order to maintain the posture of the rope threading auxiliary for conveying the steel strand B in the outer sleeve C, the bottom surface of the bottom plate 10 is an arc surface, the plate length direction of the bottom plate 10 is parallel to the bus direction of the arc surface, the bottom surface of the bottom plate 10 is preferably an arc surface which is anastomotic with the inner wall of the outer sleeve C, and therefore the bottom surface of the bottom plate 10 is attached to the inner wall of the outer sleeve C, and smooth sliding of the bottom plate 10 in the outer sleeve C along the pipe center direction of the bottom plate can be ensured. The bottom plate 10 in this embodiment is an arc plate with a curved cross section in the width direction. The top of the upright 31 is connected with the middle rod body of the transverse supporting rod 32, and the rod core of the supporting rod 32 is parallel to the width direction of the bottom plate 10 and perpendicular to the length direction of the bottom plate 10. In the specific implementation, as shown in fig. 3, the rod end of the supporting rod 32 is overhanging on the outer side of the plate body of the bottom plate 10, and is arranged close to the inner wall of the outer sleeve C, the supporting rod 32 and the bottom plate 10 form a relatively stable triangular structure in the cross section direction of the outer sleeve C, and the center of gravity of the rope penetrating auxiliary is positioned below the middle part of the triangular structure when the steel strand B is conveyed, so that the sliding displacement posture of the rope penetrating auxiliary in the outer sleeve C can be reliably maintained, and the bottom plate 10 is prevented from overturning. When the outer sleeve C is provided with the steel strands B which are installed in a penetrating manner, as shown in fig. 1, the steel strands B are supported above the supporting rods 32 to press the bottom plate 10 against the lower part of the outer sleeve C, so as to ensure the maintenance of the sliding posture of the bottom plate 10.

To achieve reliable connection of the base plate 10 and the hauling rope a, two hauling rope connection units 21 are provided on the base plate 10, the hauling rope connection units 21 include a hauling pipe cavity 211 for accommodating the hauling rope a or the hauling rope end connection piece, and the pipe cores of the hauling pipe cavities 211 of the two hauling rope connection units 21 are overlapped and parallel to the plate length direction of the base plate 10. The steel strand connecting unit 22 is disposed beside the traction rope connecting unit 21, and the steel strand connecting unit 22 includes a bar-shaped groove 221 for accommodating the steel strand B or the traction rope a, and the groove length direction of the bar-shaped groove 221 is parallel to the plate length direction of the base plate 10. When the traction rope is used, the rope length direction of the traction rope A and the length direction of the steel stranded wires B are respectively matched with the displacement direction of the bottom plate 10, and stable and reliable traction of the bottom plate 10 and the steel stranded wires B can be ensured.

The arrangement of the components on the base plate 10 is shown in fig. 2, two traction rope connecting units 21 are separately arranged at two ends of the base plate 10 in the plate length direction at intervals, a steel strand connecting unit 22 is arranged at the front end of the base plate 10, the traction rope connecting units 21 and the steel strand connecting units 22 are separately arranged at two sides of a vertical rod 31, and the vertical rod 31 is connected at the middle part of the base plate 10 in the plate width direction. As shown in fig. 1, the connection position between the upright rod 31 and the bottom plate 10 avoids the traction rope a, the steel stranded wire B, the traction rope connection unit 21 and the steel stranded wire connection unit 22, so that the width of the plate body of the bottom plate 10 can be further reduced, and the rope threading operation under the condition of compact rope threading space is realized.

A limiting element is arranged at the notch of the strip-shaped groove 221 to prevent the steel strand B or the traction rope from falling out of the groove cavity of the strip-shaped groove 321. In this embodiment, a screw is disposed at the groove wall of the bar groove 221 in a penetrating manner, and the shaft of the screw traverses the notch of the bar groove 221 to block the steel strand B or the connecting piece connected to the end of the steel strand B from the groove cavity of the bar groove 221, so as to ensure the reliable connection between the steel strand B and the steel strand connecting piece 22.

Example two

The difference between this embodiment and the first embodiment is that, in order to achieve convenient adjustment of the rod lengths of the upright rod 31 and the support rod 32, the upright rod 31 and the support rod 32 are telescopic rods. As shown in fig. 4 and 5, the upright rod 31 includes an upper tube 311 and a lower tube 312 sleeved therein, and the compression spring connects the upper tube 311 and the lower tube 312 and provides elastic force to drive the upper tube 311 to displace upward, so that the supporting rod 32 connected to the top end of the upright rod 31 can push against the steel strand B after traction is completed. The supporting rod 32 comprises a middle hollow tube 321, the middle hollow tube 321 is internally connected with an end rod 323 through a pressure spring, the pressure spring provides elasticity to drive the end rod 323 to outwards displace along the length direction of the supporting rod 32 rod, and therefore the supporting rod 32 props against the inner wall of the outer sleeve C to prevent upper steel strands from falling below.

Claims

1. The utility model provides a wear and take auxiliary member, is platy bottom plate (10) including wholly being the bar, is equipped with haulage rope connecting element (21) that are used for connecting haulage rope (A) and is used for connecting steel strand wires connecting element (22) of steel strand wires (B), its characterized in that on bottom plate (10): the base plate (10) is detachably connected with a bracket (30), the bracket (30) comprises a transversely arranged supporting rod (32), and the top surface of the supporting rod (32) is higher than the traction rope connecting unit (21), the steel strand connecting unit (22) and the steel strand (B).

2. The lashing aid of claim 1, wherein: the steel strand connecting unit (22) is positioned at the front side of the supporting rod (32), and the distance between the bottom surface of the supporting rod (32) and the bottom plate (10) is larger than the outer diameter of the steel strand (B).

3. The lashing aid of claim 1, wherein: the bracket (30) comprises a vertical rod (31) with the bottom detachably connected with the bottom plate (10), and the supporting rod (32) is connected to the top of the vertical rod (31).

4. The lashing aid of claim 1, wherein: the rod core of the supporting rod (32) is parallel to the plate width direction of the bottom plate (10) and perpendicular to the plate length direction of the bottom plate (10).

5. A lashing aid as claimed in claim 3, wherein: the length of the upright rod (31) is adjustable, the upright rod (31) comprises an upper pipe (311) and a lower pipe (312) sleeved in the upper pipe, and a pressure spring is connected with the upper pipe (311) and the lower pipe (312) and provides elasticity to drive the upper pipe (311) to move upwards;

the length of the supporting rod (32) is adjustable, the supporting rod (32) comprises a middle hollow pipe (321), the middle hollow pipe (321) is internally connected with an end rod (323) through a pressure spring, and the pressure spring provides elasticity to drive the end rod (323) to outwards displace along the length direction of the supporting rod (32).

6. The lashing aid of claim 1, wherein: the bottom surface of the bottom plate (10) is an arc surface, and the plate length direction of the bottom plate (10) is parallel to the bus direction of the arc surface.

7. The lashing aid of claim 6, wherein: the bottom plate (10) is an arc-shaped plate with the cross section in the width direction of the plate being in an arc shape, the upright rod (31) is connected to the middle part of the bottom plate (10) in the width direction of the plate, and the top of the upright rod (31) is connected with the middle rod body of the transverse supporting rod (32).

8. The lashing aid of any one of claims 1-7, wherein: two traction rope connecting units (21) are arranged on the bottom plate (10), each traction rope connecting unit (21) comprises a traction tube cavity (211) for accommodating a traction rope (A) or a traction rope end part connecting piece, and tube cores of the traction tube cavities (211) of the two traction rope connecting units (21) are overlapped and parallel to the plate length direction of the bottom plate (10);

The steel strand connecting unit (22) is arranged at the side of the traction rope connecting unit (21), the steel strand connecting unit (22) comprises a strip-shaped groove (221) for accommodating the steel strand (B), the groove length direction of the strip-shaped groove (221) is parallel to the plate length direction of the bottom plate (10), and a limiting element is arranged at the notch of the strip-shaped groove (221) to prevent the steel strand (B) or the steel strand connecting piece from falling out of the groove cavity of the strip-shaped groove (221).

9. The lashing aid of claim 8, wherein: two haulage rope connecting units (21) are arranged at two ends of the bottom plate (10) in the plate length direction at intervals, the steel strand connecting units (22) are arranged at the front end of the bottom plate (10), and the haulage rope connecting units (21) and the steel strand connecting units (22) are arranged at two sides of the vertical rod (31).