KR100753694B1 - Folding apparatus of work lifter for vehicle for working of bridge slab - Google Patents

Abstract

The present invention relates to a work lift folding device of a bridge slab work vehicle, which includes a saddle (1) having wheels (1a) installed on the bottom surface of a bridge and a top surface of the saddle (1) to be operated by an operator standing thereon. An upper plate frame (2) having a crane or the like to be adjusted to the upper surface, a vertical height adjusting means (30) connected to the side of the bridge that is vertically downward to one end of the upper frame (2), and the vertical height adjusting means A plurality of tension bolts 4a are horizontally fastened and connected to the bottom of the 30, and the worker's work lifter 40 can be moved horizontally so that the worker can dismantle the formwork at the bottom of the bridge thereon. Connected horizontal length adjusting means 50, a rotating means 60 for rotating the horizontal length adjusting means 50 to the left and right, a balance weight 5 provided on the other upper surface of the upper frame 2, and the balanceIn the bridge slab work vehicle, which is provided on the upper surface of the sheet (5) and composed of a generator (6) installed to supply power to the vertical height adjusting means (30) and the horizontal length adjusting means (50), the work lifter (40) is Bottom plate 41; A handrail 42 erected on all sides of the bottom plate 41; It is characterized in that the folding means 43 is connected to the lower portion of the vertical handrail 42a of the handrail 42 to fold all of the handrail 42. The present invention configured as described above is configured to be able to fold and unfold the horizontal and vertical handrails by the forward and reverse rotation of the motor is not only possible to adjust the height of the handrail stand, but also easy to access the working position of the bridge slab worker There is efficiency of work.

Description

Folding apparatus of work lifter for vehicle for working of bridge slab}

1 is a side view showing a conventional bridge slab working vehicle;

2A and 2B are cross-sectional views showing a state in which a connection part is broken by generation of tensile stress in a conventional bridge slab working vehicle;

3 is a cross-sectional view showing a bridge slab working vehicle according to the present invention;

4 is a perspective view showing a bridge slab working vehicle according to the present invention;

5 is a cross-sectional view showing the connecting portion of the vertical and horizontal adjusting means of the bridge slab work vehicle of the present invention;

Figure 6 is a perspective view showing in detail the vertical height adjustment means of the bridge slab work vehicle of the present invention,

7 is a side perspective view showing a bridge slab working vehicle according to the present invention;

8 is a perspective view showing a work lift of a bridge slab work vehicle according to the present invention;

8A is a cross-sectional view taken along the line A-A of FIG. 8;

Fig. 9 is a front view showing a state where the handrail of the work lift of the bridge slab work vehicle according to the present invention is folded.

<Explanation of symbols for main parts of the drawings>

10: rear deck 11: both side gate member

1: saddle 2: top frame

5: balance weight 6: generator

30: vertical height adjustment means 31: master outer member

32: master inner member 33: hydraulic cylinder

40: work lifter 41: bottom plate

42: handrail 42a: vertical handrail

42b: horizontal railings 42c: bilateral railings

42d: Central railing 43: Folding means

43a: gear groove 43b: gear

43c: gear shaft 43d: motor

43e: Wire

The present invention relates to a work lift folding device for a bridge slab work vehicle, and more particularly, to rotate with a horizontal boom to facilitate the installation and movement of the work vehicle to shorten the air and at the same time reduce the construction cost, work The present invention relates to a worklift folding device for a bridge slab work vehicle, which makes the handrail easily foldable, thereby making it easy to access when removing the formwork under the bridge.

In general, the formwork is installed for the concrete slab of the upper bridge slab according to the conventional building hypothesis, after installing a wood-bracing copper ball on the protruding portion of the lower bridge girder flange installed on the top of the bridge, the wood in the longitudinal direction After laying the beam, install the bottom plate formwork, and dismantle the formwork when concrete placing is completed on the bridge girder and the formwork with the plywood fixed to the bridge beam girder at the upper end of the wooden beam. have.

As shown in Figures 1, 2a and 2b, the work vehicle for dismantling such a formwork is provided with saddles (1) having wheels (1a) installed on the bottom surface of the bridge, and seated on the upper surface of the saddle (1) A crane or the like for operating and standing thereon is connected to the upper frame 2 provided on the upper surface, and to the side of the bridge that is vertically downward to one end of the upper frame 2, the vertical boom 3 and the vertical boom 3 And horizontally tighten the tension bolt (4a) to the bottom of the vertical connection, and the horizontal boom (4) for the operator to dismantle the formwork at the bottom of the bridge thereon, and the upper surface of the other side of the upper frame (2) On the upper side of the bridge, a balance weight 5 is provided so as to be maintained in response to the loads of the vertical and horizontal booms 3 and 4.

Conventional bridge slab working vehicle configured as described above has a problem that the connection portion of the vertical boom 3 and the horizontal boom 4 is damaged by the load, there is no device for rotating the horizontal boom 4 vertical boom (3) And the horizontal boom (4) to install the boom integrally, it takes a lot of work time, it is difficult to work, such as the need to dismantle and re-install the boom of the work vehicle when the work vehicle is hung on the pier There is a problem in that it takes a lot of cost because the construction period of the bridge is long.

Therefore, the present invention is to solve the above problems, the object of the present invention is to firmly configure the connecting portion of the vertical boom and the horizontal boom, the vertical boom to operate up and down, and to rotate with the horizontal boom working vehicle Provides a work railing folding device for a bridge slab work car that makes it easy to move and install, shortens air and at the same time reduces construction costs, and allows easy access to the work railings for easy access when removing the formwork under the bridge. There is.

Accordingly, in order to achieve the above object, the work lift folding device of a bridge slab work vehicle according to the present invention includes a saddle 1 having wheels 1a installed on the bottom surface of a bridge and an upper surface of the saddle 1. Vertical height adjusting means connected to the upper frame (2) installed on the upper surface and the crane is mounted on the upper surface and the side of the bridge that is vertically downward to one end of the upper frame (2) 30) and a plurality of tension bolts (4a) horizontally connected to the bottom of the vertical height adjustment means 30 horizontally, and the worker's work lifter to work to dismantle the formwork at the bottom of the bridge thereon Horizontal length adjusting means 50 connected to be movable horizontally 40, a rotating means 60 for rotating the horizontal length adjusting means 50 to the left and right, and the other side of the upper frame 2 is installed On the bridge slab work vehicle composed of a balance weight (5) and a generator (6) installed on the upper surface of the balance weight (5) and installed to supply power to the vertical height adjusting means (30) and the horizontal length adjusting means (50). The work lifter 40 includes: a bottom plate 41; A handrail 42 erected on all sides of the bottom plate 41; It is characterized in that the folding means 43 is connected to the lower portion of the vertical handrail 42a of the handrail 42 to fold all of the handrail 42.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a cross-sectional view showing a bridge slab working vehicle according to the present invention, Figure 4 is a perspective view showing a bridge slab working vehicle according to the present invention, Figure 5 is a vertical and horizontal adjustment means of the bridge slab working vehicle of the present invention 6 is a perspective view showing in detail the vertical height adjustment means of the bridge slab work vehicle of the present invention, Figure 7 is a side perspective view showing a bridge slab work vehicle according to the present invention, Figure 8 Is a perspective view showing a work lift of a bridge slab work vehicle according to the present invention, FIG. 8A is a cross-sectional view taken along line AA of FIG. 8, and FIG. 9 is a state in which the handrail of the work lift of a bridge slab work vehicle according to the present invention is folded. It is a front view showing.

Bridge slab working vehicle according to the present invention, as shown in Figures 3 to 7, the saddle 1 is provided with a wheel (1a) is installed on the top plate bottom surface of the bridge, and the worker is seated on the upper surface of the saddle (1) The upper plate frame (2) installed on the upper surface and the crane to operate and adjust thereon, the vertical height adjusting means (30) connected to the height of the side of the bridge that is vertically downward to one end of the upper frame (2), and A plurality of tension bolts 4a are horizontally fastened and connected to the bottom of the vertical height adjusting means 30, and the work lifter 40 of the worker is horizontal so that the worker dismantles the formwork at the bottom of the bridge. Horizontal length adjusting means (50) connected to be movable in the movement, the rotating means 60 for rotating the horizontal length adjusting means 50 to the left and right, and the balance weight (5) installed on the other upper surface of the upper frame (2) With the balance Installed on the upper surface of the site (5) is configured to power the control means of the vertical height 30 and the horizontal length adjusting means (50) to the generator (6) provided so as to supply.

The vertical height adjusting means 30 is fixed to one side of the master outer member 31, the master inner member 32 installed inside the master outer member 31, and the outer circumferential surface of the master inner member 33, , The other side is fixed to the master outer member 31 is operated by the hydraulic pressure is made of a hydraulic cylinder 33 to operate the master inner member 32 up and down.

The horizontal length adjusting means 50 is connected to the outer boom 51 and the outer boom 51 fixed to the lower end of the master outer member 31 and the outer boom 51 is connected to each other by a wire to pull the wire In accordance with the inner boom 52 to move from side to side in the lower portion.

The rotation means 60 is connected to the upper end of the master inner member 32 to rotate the master inner member 32, the master outer member 31 is rotated to the outer boom 51 and the inner boom 52 It consists of a swing gear 61 to rotate left and right.

The upper frame 2 is provided with an LCD monitor 70 for displaying a monitor of the state of the worker working in the work lifter 40 with the CCD camera 71, and the CCD camera 71 has a master outer. It is provided in the lower surface of the member 31.

As shown in FIGS. 8 and 9, the work lifter 40 includes a bottom plate 41, a handrail 42 erected on all sides of the bottom plate 41, and a vertical handrail of the handrail 42. It is connected to the lower portion of (42a) consists of folding means 43 for folding all of the handrail 42.

The balustrade 42 is installed on the two horizontal and vertical surfaces of the bottom plate 41 in the same manner, a horizontal balustrade 42b and a vertical balustrade 42a rotatably connected to the lower portion of the horizontal balustrade 42b. )

The horizontal handrail 42b is composed of a square bar-shaped both handrails 42c on both sides, and a central handrail 42d inserted into the center of the both handrails 42c, and on the lower surfaces of the both handrails 42c. A bolt 98 and a nut 99 are inserted into the vertical handrail 42a so as to be rotatable by the folding means 43.

The folding means 43 is a gear-shaped groove 43a formed in the lower portion of the vertical handrail 42a, a gear 43b inserted into the gear-shaped groove 43a, and the rotation of the gear 43b. A shaft 43c integrally connected to the center, a motor 43d for forward and reverse rotation of the shaft 43c, and an electric wire 43e for applying power to the motor 43d.

In the case of the horizontal surface of the bottom plate 41 is provided with a vertical handrail 42a hinged to the bottom plate 41 by a hinge member 42e without a folding means 43 at the bottom.

Bridge slab working vehicle of the present invention configured as described above, the wheel (1a) is installed on the lower end of the pair of saddle (1) is installed to be movable on the bridge top plate. The left and right steering system makes it possible to move from side to side. This work vehicle is rotated so that the horizontal length adjusting means 50 lowered to the side of the bridge by the swing gear 61 of the rotating means 60 installed on the upper end of the vertical height adjusting means 30 is located under the bridge to be worked. Let's do it.

The inner booms 52 in the outer boom 51 of the horizontal length adjusting means 50 are connected to each other by wires and move left and right at the bottom of the bridge as the wires are pulled. On the upper surface of the inner boom 52, the work lifter 40 which operates itself up and down is convenient to move to the position where the worker works, and it is possible to move left and right from the bottom of the bridge.

In addition, a CCD camera 71 is installed on the lower side of the master outer member 31 to display the state of the worker working on the work lifter 40 on the LCD monitor 70 to display the safety state according to the position of the worker. Will be monitored.

The work lifter 40 is provided with a handrail 42 on all sides of the bottom plate 41, and the handrail 42 can be folded and unfolded, respectively provided on both sides of the bottom surface of the bottom plate 41. When the motor shaft 43c is rotated by applying power to the motor 43d, one of the gears 43b connected to the shaft 43c rotates in the counterclockwise direction and the other clockwise in the vertical handrail 42a. It rotates around its bottom one counterclockwise and the other clockwise. When rotated in this way, the two handrails 42c of the horizontal handrail 42b are horizontally moved toward the center, respectively, while the middle handrail 42d is inserted into both handrails 42c and lowered to the lower side as shown in FIG. 9. do. On the contrary, when the handrail 42 is extended, the above operation may be reversed.

According to the work lift folding device of the bridge slab work vehicle of the present invention as described above, it is possible to adjust the height of the railing stand by configuring the horizontal and vertical handrails to be folded and unfolded by the forward and reverse rotation of the motor to which the power is applied. In addition, it is easy to access the working position of the bridge slab operator, which makes the work more efficient.

Claims (5)

Saddle (1) provided with a wheel (1a) on the bottom surface of the bridge; A top frame (2) seated on an upper surface of the saddle (1) and provided with a crane or the like on the upper surface of which an operator stands and adjusts the operation; Vertical height adjusting means (30) connected to one end of the upper frame (2) so as to be height-adjustable to the side of the bridge that is vertically downward; A plurality of tension bolts 4a are horizontally fastened and connected to the lower end of the vertical height adjusting means 30, and the worker's work lifter 40 is operated so that the worker dismantles the formwork at the bottom of the bridge. Horizontal length adjusting means (50) connected to be movable horizontally; A rotating means (60) for rotating the horizontal length adjusting means (50) left and right, and a balance weight (5) provided on the other upper surface of the upper frame (2); In the bridge slab working vehicle, which is provided on the upper surface of the balance weight (5) and composed of a generator (6) installed to supply power to the vertical height adjusting means (30) and the horizontal length adjusting means (50), The work lifter 40 includes a bottom plate 41; A handrail 42 erected on all sides of the bottom plate 41; The work lift folding device of the bridge slab work vehicle, characterized in that made of the folding means (43) connected to the lower portion of the vertical handrail (42a) of the handrail 42 to fold the handrail 42. The method of claim 1, The balustrade 42 is installed on the two horizontal and vertical surfaces of the bottom plate 41 in the same manner, but the horizontal balustrade 42b; The work lift folding device of the bridge slab work vehicle, characterized in that consisting of a vertical handrail (42a) rotatably connected to the lower portion of the horizontal handrail (42b). The method of claim 2, The horizontal handrail 42b includes both side handrails 42c each having a rectangular bar shape on both sides thereof; A central handrail 42d inserted into the center of the two handrails 42c; A bolt 98 and a nut 99 are inserted into lower surfaces of the both handrails 42c so that the vertical handrail 42a is rotatably connected by the folding means 43. Work lift folding device. The method of claim 3, The folding means (43) comprises a gear-shaped groove (43a) formed in the lower portion of the vertical handrail (42a); A gear 43b inserted into the gear-shaped groove 43a; A shaft 43c integrally connected to the center of rotation of the gear 43b; A motor 43d for forward and reverse rotation of the shaft 43c; A work lift folding device for a bridge slab work vehicle, characterized by comprising a wire (43e) for applying power to the motor (43d). The vertical handrail 42a according to claim 1, wherein in the case of the horizontal surface of the bottom plate 41, a vertical handrail 42a hinged to the bottom plate 41 by a hinge member 42e is provided without a folding means 43 at the bottom thereof. The work lift folding device of the bridge slab work vehicle, characterized in that the additional installation.

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