CN219527353U - Lifting cable-unfolding trolley for cable unfolding - Google Patents

Abstract

The utility model discloses a liftable cable-spreading trolley for spreading cables, which comprises: a support platform; the moving mechanism is positioned at the lower side of the supporting platform; the height adjusting mechanism is connected between the moving mechanism and the supporting platform; the self-clamping mechanisms are oppositely connected to two sides of the supporting platform, clamping openings are formed between the two opposite self-clamping mechanisms, and the clamping openings of the self-clamping mechanisms are in a clamping state when the self-clamping mechanisms are subjected to the gravity of the stay cables and in a loosening state when the gravity of the stay cables is removed. The utility model has the beneficial effects that: the height adjusting mechanism adjusts the height of the supporting platform, so that the requirements for supporting the stay cables at different heights can be met, and the situation that the stay cables drag the ground and damage the protective layer on the surface of the stay cables is avoided; the self-clamping mechanism can automatically clamp and loosen the stay cable, thereby bringing convenience to operators; the inclined angle alpha is adjusted, the self-clamping mechanism can clamp stay ropes with different diameters, and applicability is improved.

Description

Lifting cable-unfolding trolley for cable unfolding

Technical Field

The utility model belongs to the technical field of construction of cable-stayed bridges, and particularly relates to a lifting cable-expanding trolley for expanding cables of a back-free cable-stayed bridge.

Background

The stay cable is one of main bearing members of the back-free cable-stayed bridge, the cable body is transported in a disc-shaped form, the operation of expanding the cable before installation becomes an essential link for the installation of the stay cable, and the protection of the cable body becomes an important difficulty. However, in the use process of the cable-spreading trolley, on one hand, because the existing cable-spreading trolley is fixed in height and lower in height, the phenomenon that a cable body drags the ground exists in the stay cable in the cable-spreading process, a protective layer on the surface of the cable body is damaged, and on the other hand, the stay cable is usually fixed on the trolley by adopting a rope, so that the operation is complicated.

Disclosure of Invention

The utility model aims at: the lifting cable-spreading trolley solves the problems that the height of the existing cable-spreading trolley is not adjustable and the stay cable is inconvenient to fix. The utility model can adjust the height of the cable-spreading trolley, is suitable for different uses, and can conveniently and automatically hold and fix the stay cables with different thicknesses.

The aim of the utility model is achieved by the following technical scheme:

a liftable cable car for cable deployment, comprising:

a support platform;

the moving mechanism is positioned at the lower side of the supporting platform;

the height adjusting mechanism is connected between the moving mechanism and the supporting platform and is used for adjusting the height of the supporting platform;

the self-clamping mechanism is connected to two sides of the supporting platform relatively, a clamping opening is formed between the two opposite self-clamping mechanisms, the clamping opening of the self-clamping mechanism is in a clamping state when the gravity of the stay cable is received and in a loosening state when the gravity of the stay cable is removed, namely, the self-adaptation of the self-clamping mechanism is in a clamping state when the gravity of the stay cable is received, and the self-adaptation of the self-clamping mechanism is in a loosening state when the gravity of the stay cable is removed.

Further, the moving mechanism comprises a bottom plate and at least two moving wheels arranged on the lower side of the bottom plate.

Further, the height adjusting mechanism comprises push-up pieces which are symmetrically arranged on two sides, the upper parts of the push-up pieces are arranged on the supporting platform in a sliding mode and are hinged to the supporting platform relatively, the lower parts of the push-up pieces are hinged to the moving mechanism, adjusting pieces for adjusting the distance between the push-up pieces are further arranged on the supporting platform, the top positions of the push-up pieces can be adjusted when the adjusting pieces operate, and the height of the supporting platform is changed by utilizing the structure of the sliding diagonal bracing.

Further, the push-up piece is a supporting rod, the upper portion of the supporting rod is hinged with the moving block, the moving block is arranged on the supporting platform in a sliding mode, the lower portion of the supporting rod is hinged with the moving mechanism, and when the distance between the two moving blocks is changed by the adjusting piece, the supporting platform is propped up or descends by the moving block at the same time.

Further, the downside of supporting platform be equipped with the slide rail, the movable block slides and establishes on the slide rail, realizes the sliding motion of movable block on supporting platform.

Further, the adjusting piece comprises a bidirectional screw rod which is rotatably arranged on the supporting platform, the bidirectional screw rod pushes the moving block to slide through threads, a screwing wheel is arranged on the bidirectional screw rod, the bidirectional screw rod is rotated by using the screwing wheel to operate, and the thread extrusion force on two sides of the bidirectional screw rod acts on the moving block to realize the horizontal sliding of the moving block.

Further, the height adjusting mechanism is provided with two groups, moving rods are connected between the moving blocks between the groups, the two-way screw rods are respectively in threaded fit with the moving rods on the two sides, the moving blocks on each side are connected into a whole through the moving rods, and the moving blocks on the same side are driven to synchronously slide through the two-way screw rods.

Further, supporting platform include the diaphragm at both ends, be connected with the connecting rod between the diaphragm, be connected with between the diaphragm and be located from the butt plate of fixture below, form frame construction between diaphragm, connecting rod and the butt plate, butt plate carries out spacingly from fixture, avoids from fixture transition upset.

Further, the self-clamping mechanism comprises a rotating shaft which is rotatably arranged on the supporting platform by utilizing the connecting block, a trigger rod and a pressing rod are arranged on the rotating shaft, an included angle alpha for clamping the stay cable is formed between the trigger rod and the pressing rod, and the included angle alpha is 75-105 degrees.

Further, be equipped with the torsional spring between pivot and the supporting platform, the torsional spring provides the moment of torsion of outwards overturning for the pivot, guarantees to be the trigger lever level and places when unclamping the state from fixture.

Further, the trigger rod and the compression bar are all provided with the rubber pad on one side that is close to each other, and the surface of rubber pad is equipped with anti-skidding line, realizes the flexible contact to the stay cable.

Further, the adjusting structure for adjusting the included angle alpha is arranged between the pressure lever and the rotating shaft, so that the circumferential position of the pressure lever on the rotating shaft is adjustable, and stay ropes with different diameters are met by changing the included angle.

Further, the adjusting structure comprises a swivel on the pressure bar, the swivel is rotationally sleeved on the rotating shaft, the swivel is guaranteed to have the functions of moving along the axis of the rotating shaft and rotating circumferentially, a positioning pin is arranged in the swivel, a plurality of positioning grooves for clamping the positioning pin are arranged in the rotating shaft, the positioning grooves are distributed along the circumferential direction of the rotating shaft, an annular groove is arranged in the rotating shaft, the notch of the positioning groove is opposite to the annular groove, and then the swivel can enter the annular groove to adjust the position of the positioning pin for clamping the positioning groove.

The utility model has the beneficial effects that:

1. utilize high adjustment mechanism to adjust supporting platform's height, and then adaptable demand to the not high support of stay cable has avoided the stay cable to appear dragging the ground and damaging the protective layer on stay cable surface.

2. The self-clamping mechanism can be utilized to automatically clamp and loosen the stay cable, thereby bringing convenience to operators.

3. Through adjusting the size to contained angle alpha, can carry out the centre gripping to the stay cable of different diameters from fixture, improved the suitability.

The foregoing inventive subject matter and various further alternatives thereof may be freely combined to form a plurality of alternatives, all of which are employable and claimed herein; and the utility model may be freely combined between choices (of non-conflicting choices) and with other choices as well. Various combinations will be apparent to those skilled in the art from a review of the present disclosure, and are not intended to be exhaustive or to limit the utility model to the precise forms disclosed.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of the height adjustment mechanism of fig. 1 from a first view.

Fig. 3 is a schematic structural view of the height adjusting mechanism in fig. 1 at a second view angle.

Fig. 4 is a schematic structural view of the self-clamping mechanism in fig. 1.

Fig. 5 is a schematic view of the structure of fig. 4 with the compression bar removed.

Fig. 6 is a schematic structural view of the compression bar in fig. 4.

Fig. 7 is a schematic structural view of a stay cable clamped on a cable-stayed trolley.

In the figure: 1-a moving mechanism; 11-a bottom plate; 12-moving wheels; 2-a height adjustment mechanism; 21-supporting rods; 22-slide rails; 23-moving blocks; 24-moving the rod; 25-a bidirectional screw rod; 26-screwing the wheel; 27-connecting rods; 3-a support platform; 31-a retaining plate; 4-self-clamping mechanism; 41-a rotating shaft; 42-triggering a lever; 43-pressing rod; 44-torsion spring; 45-adjusting structure; 451-annular grooves; 452-a positioning slot; 453-swivel; 454-locating pins; 46-rubber pads; 5-stay ropes.

Detailed Description

The utility model will be further described with reference to specific examples and figures.

Example 1

A lifting cable-spreading trolley for spreading cables, as shown in figure 1, comprises a moving mechanism 1, a height adjusting mechanism 2, a supporting platform 3 and a self-clamping mechanism 4.

The supporting platform 3, the supporting platform 3 may be a whole flat plate, or may be two transverse plates symmetrically arranged, and in this embodiment, two transverse plates are taken as an example.

The moving mechanism 1, the moving mechanism 1 is located at the lower side of the supporting platform 3, the moving mechanism 1 plays a role in moving, the specific structure is a bottom plate 11 and moving wheels 12 installed at the lower side of the bottom plate 11, the moving wheels 12 can be universal wheels, and the number of the moving wheels 12 is at least 2.

The height adjusting mechanism 2 is arranged between the bottom plate 11 and the supporting platform 3, and the distance between adjacent cable-spreading trolleys is set according to the weight of the cable-spreading trolleys when the cable-spreading trolleys lift the cable-spreading trolleys, so that the weight of the cable-spreading trolleys 5 is inversely proportional to the distance between the adjacent cable-spreading trolleys. In order to prevent the stay cable 5 from mopping the floor, the distance between the cable-spreading trolleys is in direct proportion to the height of the cable-spreading trolley supporting platform 3, so that the stay cable 5 can be prevented from mopping the floor, and the height of the supporting platform 3 can be adjusted according to the needs when the cable-spreading trolley is used, so that the cable-spreading trolley is suitable for the requirements of different heights.

From fixture 4, from fixture 4 has two kinds of states of clamp and loosen, for the stability to stay cable 5 centre gripping, the number of fixture 4 certainly on the supporting platform 3 is 2 at least, when using, can place stay cable 5 on fixture 4, fixture 4 can be because the gravity of stay cable 5 is from switching to clamp the state, press from both sides tight to stay cable 5, because stay cable 5 is to be lifted to the bridge, consequently after stay cable 5 is lifted gradually, fixture 4 also can lose the pressure influence of stay cable 5, fixture 4 will be from switching to the state of loosening, and then reach convenient function to carry out centre gripping and loosen to stay cable 5, convenience has been brought for the operating personnel.

Example two

The present embodiment is further optimized based on the first embodiment, and the same parts as the foregoing technical solutions will not be described herein again. As shown in fig. 2 to 3, in order to further realize the present utility model, the following arrangement is adopted: the height adjusting mechanism 2 comprises two groups of push-up pieces which are symmetrically arranged on two sides, the two groups of push-up pieces are respectively and correspondingly arranged with the two transverse plates, the upper side and the lower side of each push-up piece are respectively and movably connected with the transverse plates and the bottom plate 11, the supporting platform 3 is provided with adjusting pieces which drive the push-up pieces on two sides to synchronously operate, and the height of the supporting platform 3 can be adjusted when the push-up pieces operate.

The push-up piece is the bracing piece 21, and the lower extreme of bracing piece 21 all articulates with bottom plate 11, and the downside of horizontal pole is fixed with slide rail 22, has two movable blocks 23 through slider slidable mounting on the slide rail 22, and the upper end of bracing piece 21 articulates with two movable blocks 23 respectively, and when two bracing pieces 21 rotated with the lower extreme, the upper end of bracing piece 21 can drive movable block 23 and remove along slide rail 22, adjusts the height of diaphragm simultaneously.

The adjusting piece comprises a bidirectional screw rod 25, the supporting platform 3 comprises two connecting rods 27 fixed on the lower sides of the two transverse plates, the two connecting rods 27 are respectively positioned at two ends of the sliding rail 22, and the bidirectional screw rod 25 is installed by the two connecting rods 27 in a co-rotating mode. To ensure stability, the bi-directional screw 25 is located at the center of the connecting rod 27.

One end of the bidirectional screw rod 25 is fixed with a screwing wheel 26, the screwing wheel 26 is arranged to facilitate the rotation of the bidirectional screw rod 25, the bidirectional screw rod 25 is connected with moving rods 24 which are symmetrically arranged on two sides through threaded engagement, when the bidirectional screw rod 25 rotates, the two moving rods 24 can move away from or close to each other, two ends of the two moving rods 24 are respectively fixedly connected with moving blocks 23 corresponding to the two sliding rails 22, when the two moving rods 24 move, the corresponding moving blocks 23 are synchronously driven to move, when the upper ends of the two supporting rods 21 move away from or close to each other, the inclination angles of the two supporting rods 21 can be adjusted, and the height of the transverse plate is further adjusted.

Example III

The present embodiment is further optimized based on the first or second embodiment, and the same parts as the foregoing technical solutions will not be described herein again. As shown in fig. 4 to 7, in order to better implement the present utility model, the following arrangement is adopted: the self-clamping mechanism 4 comprises two self-overturning assemblies which are oppositely arranged, the two self-overturning assemblies are required to be staggered, interference of the self-overturning assemblies during overturning is avoided, a resisting plate 31 corresponding to the upper center of the self-overturning assembly is fixed between the two transverse plates, and the resisting plate 31 can block the overturning angle of the self-overturning assembly and bear the weight of the stay cable.

The self-overturning assembly comprises a rotating shaft 41 fixedly and rotatably installed on a transverse plate through a connecting block, a trigger rod 42 and a pressing rod 43 are arranged on the outer circumferential surface of the rotating shaft 41, an included angle alpha is formed between the trigger rod 42 and the pressing rod 43, and the included angle alpha is set according to actual needs. A torsion spring 44 is arranged between the rotating shaft 41 and the connecting block, the torsion spring 44 applies torque for the rotating shaft 41 to turn outwards, the trigger rod 42 is horizontally placed when the self-clamping mechanism 4 is in a loosening state, namely, the trigger rod 42 is horizontally placed when the torsion spring 44 makes the rotating shaft 41 turn outwards to the maximum stroke, so that when the stay cable 5 is placed on the self-clamping mechanism 4, the stay cable 5 can simultaneously press a plurality of trigger rods 42 downwards.

When the stay cable 5 is placed on the self-clamping mechanism 4, the stay cable 5 will contact with the trigger rod 42, and due to the gravity of the stay cable 5, the driving rotating shaft 41, the trigger rod 42 and the pressing rod 43 synchronously turn inwards, the torsion spring 44 deforms and stores force, and when the trigger rod 42 is blocked by the retaining plate 31 and does not turn continuously, the pressing rod 43 clamps the stay cable 5 tightly, as shown in fig. 7. In order to ensure the clamping force and buffering space of the stay cable 5, rubber pads 46 are arranged on the sides, close to each other, of the trigger rod 42 and the compression rod 43, the rubber has a certain deformation amount, meanwhile, the rubber has larger friction resistance, the rubber pads are in contact with the protective layer of the stay cable 5, the friction force can be increased, and anti-skidding patterns can be further arranged on the surfaces of the rubber pads 46. When the stay cable 5 is lifted or lifted upwards by itself, the trigger rod 42, the pressure rod 43 and the rotating shaft 41 can gradually turn over outwards along with the position of the stay cable 5 due to the elasticity of the torsion spring 44 until the stay cable 5 is separated from the self-clamping mechanism 4, so that the automatic clamping and loosening of the stay cable 5 can be realized.

Example IV

The present embodiment is further optimized based on the third embodiment, and the same parts as the foregoing technical solutions will not be described herein again. As shown in fig. 4 to 6, in order to further realize the present utility model, the following arrangement is adopted: the included angle alpha is set to be adjustable so as to clamp and fix stay ropes 5 with different diameters, the trigger rod 42 is fixedly connected with the rotating shaft 41, the circumferential position of the pressing rod 43 on the rotating shaft 41 is adjustable, the included angle alpha is further adjusted, and the included angle alpha is 75-105 degrees.

The depression bar 43 passes through adjustment structure 45 with pivot 41 and is connected, adjustment structure 45 includes the swivel 453 that is fixed in depression bar 43, swivel 453 rotates the cover and locates pivot 41, annular groove 451 has been seted up on pivot 41, a plurality of constant head tanks 452 have been seted up in the one side intercommunication of annular groove 451, a plurality of constant head tanks 452 distribute along the circumferencial direction of pivot 41, be fixed with the locating pin 454 with constant head tanks 452 grafting adaptation at swivel 453 inner wall, when locating pin 454 grafting is to corresponding constant head tanks 452 in, be used for carrying out the centre gripping to the stay cable 5 of different diameters, swivel 453 has and moves and circumference rotation function along pivot 41 axis, when need carry out the centre gripping to the stay cable 5 of certain size, promote depression bar 43 to one side of annular groove 451, make the locating pin 454 enter into annular groove 451, can overturn depression bar 43, make swivel 453 enter into corresponding constant head tank 452 in, can accomplish the regulation to contained angle alpha size, in order to ensure the intensity from fixture 4, pivot 41, trigger lever 42, depression bar 43, swivel 453 and locating pin 454 are all made by high strength material, prevent its deformation.

The foregoing basic embodiments of the utility model, as well as other embodiments of the utility model, can be freely combined to form numerous embodiments, all of which are contemplated and claimed. In the scheme of the utility model, each selection example can be arbitrarily combined with any other basic example and selection example.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. The utility model provides a cable-spreading is with liftable exhibition cable dolly, includes supporting platform (3), its characterized in that still includes:

the moving mechanism (1), the moving mechanism (1) locates at the underside of the supporting platform (3);

the height adjusting mechanism (2), the height adjusting mechanism (2) is connected between the moving mechanism (1) and the supporting platform (3);

the self-clamping mechanism (4), the self-clamping mechanism (4) is relatively connected to two sides of the supporting platform (3), a clamping opening is formed between the self-clamping mechanisms (4) with two opposite sides, and the clamping opening of the self-clamping mechanism (4) is provided with a clamping state when the self-clamping mechanism is subjected to the gravity of the stay cable (5) and a loosening state when the gravity of the stay cable (5) is removed.

2. The liftable cable car of claim 1, wherein: the height adjusting mechanism (2) comprises push-up pieces which are symmetrically arranged on two sides, the upper parts of the push-up pieces are arranged on the supporting platform (3) in a sliding mode and are hinged to the supporting platform (3), the lower parts of the push-up pieces are hinged to the moving mechanism (1), and adjusting pieces for adjusting the distance between the push-up pieces are further arranged on the supporting platform (3).

3. The liftable cable car of claim 2, wherein: the push-up piece is a supporting rod (21), the upper part of the supporting rod (21) is hinged with a moving block (23), the moving block (23) is slidably arranged on the supporting platform (3), and the lower part of the supporting rod (21) is hinged with the moving mechanism (1).

4. A liftable cable car as claimed in claim 2 or 3 wherein: the adjusting piece comprises a bidirectional screw rod (25) which is rotatably arranged on the supporting platform (3), the bidirectional screw rod (25) pushes the moving block (23) to slide through threads, and a screwing wheel (26) is arranged on the bidirectional screw rod (25).

5. The liftable cable car for cable deployment of claim 4, wherein: the height adjusting mechanism (2) is provided with two groups, a moving rod (24) is connected between the moving blocks (23) between the groups, and the bidirectional screw rods (25) are respectively in threaded fit with the moving rods (24) on two sides.

6. The liftable cable car of claim 1, wherein: the supporting platform (3) comprises transverse plates at two ends, connecting rods (27) are connected between the transverse plates, and a retaining plate (31) positioned below the self-clamping mechanism (4) is connected between the transverse plates.

7. The liftable cable car of claim 1, wherein: the self-clamping mechanism (4) comprises a rotating shaft (41) which is rotatably arranged on the supporting platform (3), a trigger rod (42) and a pressing rod (43) are arranged on the rotating shaft (41), an included angle alpha is formed between the trigger rod (42) and the pressing rod (43),

alpha is 75-105 degrees.

8. The lashing liftable lashing car of claim 7, wherein: a torsion spring (44) is arranged between the rotating shaft (41) and the supporting platform (3), and the torsion spring (44) provides outwards overturning torque for the rotating shaft (41); the trigger rod (42) and the compression bar (43) are provided with rubber pads (46) on the sides close to each other, and anti-slip patterns are arranged on the surfaces of the rubber pads (46).

9. The liftable cable car for cable deployment of claim 7 or 8, wherein: an adjusting structure (45) for adjusting an included angle alpha is arranged between the pressing rod (43) and the rotating shaft (41).

10. The lashing liftable lashing car of claim 9, wherein: the adjusting structure (45) comprises a rotating ring (453) on the pressure rod (43), the rotating ring (453) is rotatably sleeved on the rotating shaft (41), a positioning pin (454) is arranged in the rotating ring (453), a plurality of positioning grooves (452) for clamping the positioning pin (454) are formed in the rotating shaft (41), an annular groove (451) is formed in the rotating shaft (41), and the notch of the positioning groove (452) is opposite to the annular groove (451).