CN213233146U

CN213233146U - A self-balancing front outrigger structure

Info

Publication number: CN213233146U
Application number: CN202021674892.0U
Authority: CN
Inventors: 徐田; 刘方杰; 胡元伦; 孔庆哲
Original assignee: Shandong Hengkun Machinery Co ltd; Shandong Jiaotong University
Current assignee: Shandong Hengkun Machinery Co ltd; Shandong Jiaotong University
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-05-18
Anticipated expiration: 2030-08-13

Abstract

A self-balancing front outrigger structure, when the moving formwork moves longitudinally, the bridge of the nose slides forward relative to the front outrigger, and the bridge of the nose slides relative to the front outrigger through the limiting device, and will not deviate. The outrigger has a forward horizontal force. Under the action of the horizontal force, the front outrigger tends to overturn forward. When the front outrigger overturns forward, because the flange of the inner end of the nose bridge is located in the slot of the anti-pull mechanism, Therefore, the anti-pulling mechanism generates a reaction force on the front outriggers to keep the front outriggers self-balancing and not overturned. After the nose bridge is moved longitudinally in place, the walking device drives the front outriggers to walk along the nose bridge to the support position of the next bridge pier. If the nose bridge needs to retreat during the longitudinal movement, the front outrigger receives a horizontal force backwards, and it tends to overturn backwards. capsize.

Description

Self-balancing front supporting leg structure

Technical Field

The utility model relates to a moving die carrier technical field, concretely relates to leg structure before self-balancing.

Background

At present, the anti-overturning mode of the front beam of the up-moving type movable formwork generally has two types, namely: the clamping pier type is that a clamping mechanism is utilized to clamp a pier top cushion stone; and the second method comprises the following steps: the pier top is embedded, and the front support leg is anchored by the finish rolling steel embedded in the pier top. The first pier clamping type anti-overturning device can only resist a smaller overturning moment and has low safety; although the second anti-overturning device can provide a larger anti-overturning moment, the components need to be pre-embedded in the pier column construction process, the accuracy of the pre-embedded position is not high, and the construction process is complex.

Disclosure of Invention

The utility model discloses a overcome not enough of above technique, provide a landing leg structure before self-balancing that landing leg antidumping supported before utilizing landing leg structure internal force and reaction force to realize.

The utility model overcomes the technical scheme that its technical problem adopted is:

the utility model provides a leg structure before self-balancing, includes the bridge of the nose and is located the preceding leg between bridge of the nose and the pier, still includes:

the spiral supporting rod is vertically arranged below the front supporting leg, and the lower end of the spiral supporting rod is in contact with the upper end of the bridge pier;

the walking device is arranged at the left side end of the rear side above the front supporting leg and drives the front supporting leg to move forwards along the nose bridge;

the limiting device is arranged at the right side end of the rear side above the front supporting leg and limits the front supporting leg at the transverse position relative to the nose bridge; and

the two reverse pulling mechanisms are respectively arranged at the left end and the right end of the front side above the front supporting leg, clamping grooves in a C-shaped structure are formed in the reverse pulling mechanisms, and two flanges at the inner side end of the nose bridge are respectively inserted into the clamping grooves of the reverse pulling mechanisms at the same side.

Furthermore, the limiting device is arranged on a support and a hinged support above the front supporting leg, the lower end of the hinged support is hinged to the support through a pin shaft, the upper end of the hinged support is in sliding friction contact with the lower end of the nose bridge, the upper end of the hinged support is rotatably provided with a limiting roller, and the limiting roller is in rolling contact with the inner side end of the nose bridge.

Furthermore, the reverse pulling mechanism comprises a vertical stand column arranged above the front supporting leg, a sliding plate fixed at the upper end of the stand column through a bolt, and a reverse limiting block arranged on the stand column and located below the sliding plate, a clamping groove of a C-shaped structure is formed between the sliding plate and the reverse limiting block, the flange of the nose bridge is located in the clamping groove, the sliding plate is located above the flange, and the reverse limiting block is located below the flange.

In order to prevent the nose bridge from driving the front support leg to act when moving longitudinally, the bridge structure further comprises a cushion stone fixed above the bridge pier and a fixed beam arranged on the rear side of the front support leg, a screw rod is horizontally screwed at the rear side end of the fixed beam, a top block is arranged at the head end of the screw rod, and the top block is in contact with the rear end face of the cushion stone.

The utility model has the advantages that: when the movable die frame moves longitudinally, the nose bridge slides forwards relative to the front supporting leg, the nose bridge slides relative to the front supporting leg through the limiting device, deviation cannot occur, a forward horizontal acting force is provided for the front supporting leg when the nose bridge slides forwards, the front supporting leg has a forward overturning trend under the action of the horizontal force, when the front supporting leg overturns forwards, the flange of the inner side end of the nose bridge is located in the clamping groove of the counter-pulling mechanism, so that the counter-pulling mechanism generates a counter-acting force on the front supporting leg, the self-balancing of the front supporting leg is kept not overturned, and after the nose bridge moves longitudinally in place, the walking device drives the front supporting leg to walk to the supporting position of the. If the nose bridge needs to retreat in the longitudinal moving process, the front supporting leg receives backward horizontal acting force and tends to overturn backwards, and the counter-pulling mechanism generates reaction force on the front supporting leg and still keeps the self-balance of the front supporting leg and does not overturn.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic side view of the reverse drawing mechanism of the present invention;

fig. 4 is a schematic structural view of the top block part of the present invention;

fig. 5 is a schematic structural view of the limiting roller of the present invention;

fig. 6 is an enlarged schematic structural view of the reverse pulling structure of the present invention;

in the figure, 1, a nose bridge 2, a walking device 3, a stand column 4, a front supporting leg 5, a fixed beam 6, a spiral supporting rod 7, a cushion 8, a pier 9, a screw rod 10, a top block 11, a support 12, a pin shaft 13, a hinged support 14, a limiting roller 15, a bolt 16, a sliding plate 17 and a reverse limiting block are arranged.

Detailed Description

The present invention will be further described with reference to fig. 1 to 6.

The utility model provides a landing leg structure before self-balancing, includes bridge of the nose 1 and is located the preceding landing leg 4 between bridge of the nose 1 and pier 8, still includes: the spiral supporting rod 6 is vertically arranged below the front supporting leg 4, and the lower end of the spiral supporting rod 6 is in contact with the upper end of the pier 8; the walking device 2 is arranged at the left side end of the rear side above the front supporting leg 4, and the walking device 2 drives the front supporting leg 4 to move forwards along the nose bridge 1; the limiting device is arranged at the right side end of the rear side above the front leg 4 and limits the front leg 4 at the transverse position relative to the nose bridge 1; and the two reverse pulling mechanisms are respectively arranged at the left end and the right end of the front side above the front supporting leg 4, clamping grooves in a C-shaped structure are arranged in the reverse pulling mechanisms, and two flanges at the inner side end of the nose bridge 1 are respectively inserted into the clamping grooves of the reverse pulling mechanisms at the same side. The walking device is a walking device of a front supporting leg of a movable mould frame disclosed in Chinese patent ZL201710445412.X, and the details are not repeated here. When the movable mould frame moves longitudinally, the nose bridge 1 slides forwards relative to the front supporting leg 4 through the limiting device, deviation cannot occur, when sliding, a forward horizontal acting force is provided for the front supporting leg 4, the front supporting leg 4 has a tendency of forward overturning under the action of the horizontal force, when the front supporting leg overturns forwards, because the flange of the inner side end of the nose bridge 1 is positioned in the clamping groove of the counter-pulling mechanism, the counter-pulling mechanism generates a reaction force on the front supporting leg 4, the self-balancing of the front supporting leg 4 is kept not overturned, and after the nose bridge 1 moves longitudinally in place, the walking device 2 drives the front supporting leg 4 to walk to the supporting position of the next pier 8 along the nose bridge. If the nose bridge 1 needs to retreat in the longitudinal moving process, the front supporting legs 4 receive backward horizontal acting force and have a tendency of backward overturning, and the counter-pulling mechanism generates reaction force on the front supporting legs 4 and still keeps the self-balance of the front supporting legs 4 to be not overturned.

The limiting device can be of a structure which is arranged on a support 11 above the front supporting leg 4 and a hinged support 13, the lower end of the hinged support 13 is hinged on the support 11 through a pin shaft 12, the upper end of the hinged support 13 is in sliding friction contact with the lower end of the nose bridge 1, a limiting roller 14 is rotatably arranged at the upper end of the hinged support 13, and the limiting roller 14 is in rolling contact with the inner side end of the nose bridge 1. When the walking device drives the front supporting leg 4 to move longitudinally along the nose bridge 1, the upper end of the hinged support 13 is in sliding friction contact with the lower end face of the right side end of the nose bridge 1, and the limiting roller 14 rolls at the inner side end of the flange, so that transverse limiting is realized.

The reverse pulling mechanism can be of a structure comprising a vertical upright post 3 arranged above the front supporting leg 4, a sliding plate 16 fixed at the upper end of the upright post 3 through a bolt 15 and a reverse limiting block 17 arranged on the upright post 3 and positioned below the sliding plate 16, a clamping groove of a C-shaped structure is formed between the sliding plate 16 and the reverse limiting block 17, the flange of the nose bridge 1 is positioned in the clamping groove, the sliding plate 16 is positioned above the flange, and the reverse limiting block 17 is positioned below the flange. When the nose bridge 1 slides forwards under the action of power, the front supporting leg tends to overturn forwards, and at the moment, the sliding plate 16 is in contact with the upper end of the flange of the nose bridge 1 to generate reaction force on the front supporting leg 4 so as to keep the self-balance of the front supporting leg against overturning. When the nose bridge 1 retreats relative to the front leg 4, the front leg 4 tends to overturn backwards, and the direction limiting block 17 contacts with the lower end of the flange, so that self-balance of the front leg is kept.

Further, still including being fixed in the base stone 7 above pier 8 and setting up in the fixed beam 5 of preceding landing leg 4 rear side, the rear end level of fixed beam 5 is closed soon has screw rod 9, and the head end of screw rod 9 is provided with kicking block 10, and kicking block 10 contacts with the rear end face of base stone 7. When the movable formwork moves longitudinally, the nose bridge 1 moves forwards relative to the front supporting leg 4, so that the nose bridge has a tendency of driving the front supporting leg 4 to move forwards, the top block 10 is pressed against the rear part of the cushion stone 7 on the pier 8 through the screw rod 9, and the front supporting leg 4 cannot move when the movable formwork moves longitudinally.

Claims

1. A self-balancing front outrigger structure, comprising a nose bridge (1) and a front outrigger (4) between the nose bridge (1) and a bridge pier (8), characterized in that it also includes:

The screw support rod (6) is vertically arranged below the front outrigger (4), and the lower end of the screw support rod (6) is in contact with the upper end of the bridge pier (8);

The walking device (2) is arranged on the left end of the rear side above the front outrigger (4), and the walking device (2) drives the front outrigger (4) to move forward along the bridge of the nose (1);

a limiting device, which is arranged on the right end of the upper rear side of the front outrigger (4), and the limiting device places the upper limit of the front outrigger (4) in a lateral position relative to the bridge of the nose (1); and

Two reverse pull mechanisms are respectively arranged at the left and right ends of the front side above the front legs (4), the reverse pull mechanism is provided with a C-shaped structure, and the two flanges at the inner end of the nose bridge (1) are respectively It is inserted into the slot of the reverse pull mechanism on the same side.

2. The self-balancing front outrigger structure according to claim 1, wherein the limiting device is installed on the support (11) above the front outrigger (4) and the hinge seat (13), the hinge The lower end of the seat (13) is hingedly mounted on the support (11) through the pin (12), the upper end of the hinge seat (13) is in sliding frictional contact with the lower end of the nose bridge (1), and the upper end of the hinge seat (13) rotates A limit roller (14) is installed, and the limit roller (14) is in rolling contact with the inner end of the nose bridge (1).

3. The self-balancing front outrigger structure according to claim 1, characterized in that: the anti-pull mechanism comprises a column (3) vertically installed above the front outrigger (4), fixed on the front outrigger (4) by bolts (15). A slide plate (16) at the upper end of the column (3) and a reverse limit block (17) arranged on the column (3) and located below the slide plate (16), the slide plate (16) and the reverse limit block (17) A C-shaped structure slot is formed between, the flange of the nose bridge (1) is located in the slot, the slide plate (16) is located above the flange, and the reverse limit block (17) is located below the flange.

4. The self-balancing front outrigger structure according to claim 1, characterized in that it further comprises a cushion stone (7) fixed above the bridge pier (8) and a fixed beam (7) arranged on the rear side of the front outrigger (4). 5) A screw (9) is screwed horizontally at the rear end of the fixing beam (5), and a top block (10) is provided at the head end of the screw (9). (7) are in contact with the rear end faces.