JP3235416U - Tunnel inspection vehicle with multiple work tables arranged in a staircase pattern - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tunnel inspection vehicle having a structure in which a plurality of work tables are arranged in a staircase pattern from a high place on a ceiling to a low place on a side wall along an inner wall of a half of a tunnel. SOLUTION: A plurality of workers M1 to M4 attach a plurality of work tables B1 to B4 for simultaneous inspection to a support arm 120 provided with a four-node link mechanism 121 at regular intervals, and attach the horizontal swivel arm. The support arm 120 is tilted diagonally upward by a swivel tilt arm mechanism consisting of 110, a support arm 120, and a drive cylinder 140, and is directed from the ceiling high place W-high to the side wall low place W-low along the inner wall of the tunnel half. Place multiple workbench at regular intervals. [Selection diagram] FIG. 14

Description

In the present invention, a plurality of work tables are arranged in a staircase pattern with a support arm mechanism capable of horizontally turning and tilting on the loading platform of a truck in order to simultaneously perform inspection work of the inner peripheral wall of a road tunnel and other road facilities while traveling. Regarding tunnel inspection vehicles.

In road tunnels such as expressways, inspection work and repair / reinforcement work of the inner wall of the road tunnel are regularly carried out in order to prevent accidents such as collapse of the inner wall made of concrete. For example, existing aerial work platforms are used for inspection work and repair work of road tunnels. The aerial work platform generally has a structure in which a hydraulic lift-type aerial work platform is mounted on the loading platform of a traveling vehicle such as a truck (Fig. 16). Work is performed using them at the same time (Fig. 15 (a)).

This type of existing aerial work platform has restrictions on the lift amount and movement range of the trolley carrying workers. It is inconvenient to inspect road tunnels with different ceiling heights and requires multiple work platforms. In addition, it is not possible to efficiently inspect each part of a wide road tunnel. In addition, the number of workers who can get on the dolly is one or a few. At the same time, it is difficult for many workers to inspect the inner wall of the road tunnel.

Therefore, we provide an in-vehicle road inspection vehicle with a structure that can be mounted on the truck bed and brought into a work site on the road, for example, into a road tunnel to safely and easily perform repair and inspection work on the inner wall of the road. It is desirable to do. Therefore, while traveling the width of either the left or right half of the passage center line extending in the longitudinal direction in the tunnel, a plurality of operations for multiple workers to simultaneously inspect from a high place to a low place on the ceiling of the inner wall of the tunnel half. A tunnel inspection vehicle having a structure in which pedestals are arranged in a staircase pattern from a high ceiling to a low side wall along the inner wall of half of the tunnel at regular intervals has been proposed. Specifically, as a road inspection machine mounted on the loading platform of a truck, a loading platform mounting frame mounted on the loading platform of a truck and an elevating frame body mounted on the loading platform mounting frame so as to be able to move up and down. A manual elevating mechanism that elevates and elevates the elevating frame, and a lateral elevating mechanism that is mounted on the elevating frame and turns 90 degrees clockwise from the forward position around the vertical axis while maintaining the horizontal posture. A state in which a possible elevating / swiveling work floor, a push-out work floor mounted on the elevating / swivel work floor, and a push-out work floor are placed on the elevating / swivel work floor while maintaining a horizontal posture. Has proposed a device having a manual squeeze mechanism that moves toward the front and above of the swivel work floor and moves it to a squeeze state that is lifted by a predetermined amount from the elevating / swivel work floor. (Patent Document 1).

Registered Utility Model No. 3214624

However, it is troublesome to manually adjust various heights and overhangs according to the height of the tunnel and the width of the road, and the adjustment range is limited, which has the disadvantage of degrading versatility. .. Therefore, it is desired to provide a tunnel inspection vehicle in which the height of the work floor and the amount of overhang can be easily adjusted according to the size of the tunnel and the purpose of the work.

The present inventor has made a horizontal turn that can horizontally turn a support arm that extends from a low place to a high place in a tunnel on a trolley that can run on half of the road in the tunnel by targeting one half of the inner wall of the tunnel. If multiple work platforms are attached using a mechanism that can tilt with respect to the arm, the weight can be balanced by adjusting the turning angle of the horizontal swivel arm and the tilting angle of the support arm with the drive cylinder with respect to the horizontal swivel arm. However, it was completed in view of the fact that multiple work floors can be arranged in a staircase pattern from the high part of the tunnel ceiling to the low part of the side wall.
While traveling the width of either the left or right half of the boundary center line of the road extending in the longitudinal direction in the tunnel T, a plurality of workers M are in the ceiling height W / high to the low place W of the inner wall W of the half of the tunnel T. -In low, a structure 100 is provided in which a plurality of work tables B1 to Bn for simultaneous inspection are arranged in a staircase pattern from a high place on the ceiling to a low place on the side wall along the inner wall of half of the tunnel at regular intervals. It ’s a tunnel inspection car.
The structure 100 in which the plurality of work tables B1 to Bn are arranged stepwise from the ceiling high place W / high to the side wall low place W / low along the inner wall W of half of the tunnel T is the first structure 100 in the center of the loading platform. The base 121 is pivotally attached to the horizontal swivel arm 110 that swivels around the rotation axis R1 and the end portion 111 that protrudes beyond the vehicle width of the arm, and extends diagonally upward from the base low place to the tip high place. A support arm 120 in which at least work tables B1 to Bn-1 are pivotally attached from the tip to the base at regular intervals, and a drive cylinder 140 that tilts the support arm 120 with the base as a fulcrum and the tip is tilted in an open shape. A swivel tilt arm mechanism comprising, and a load balance mechanism provided with a counter weight 113 at an end 112 on the opposite side of the first rotation shaft R1 at the end pivotally attached to the base 121 of the support arm. Prepare,
The horizontal swivel arm 110 is swiveled around the first rotation axis R1 in the center of the loading platform from the work platform storage position S extending in the longitudinal direction of the loading platform to the working position O extending in the lateral width direction of the loading platform, and then the vehicle of the horizontal swivel arm. A support arm 120 whose base is pivotally attached to an end extending beyond the width is tilted by a drive cylinder 140, and a plurality of work tables B1 to Bn are placed at regular intervals from a high place on the ceiling along the inner wall of the tunnel half. It is in a tunnel inspection vehicle characterized by being arranged in a staircase pattern toward a lower part of the side wall.

According to the present invention, when the support arm 120 that supports the workbench in a stepped manner is pivotally attached to the horizontal swivel arm 110 in a tiltable crocodile opening type, the support arm 120 is pivotally attached to the horizontal swivel arm 110 by the drive cylinder 140. The tilt angle α can be adjusted with respect to, and by this swivel tilt arm mechanism, the workbench B1 at the tip height is placed at a high place near the ceiling in the tunnel, and the workbench B4 is placed at a low place at the base of the support arm. However, the proper position can be easily secured in order from the high place B1 to B4 via B2, B3 in order. In this case, the load applied to the truck from the support arm 120 via the horizontal swivel arm 110 can be balanced by a load balance mechanism provided with a counterweight 113 provided at the opposite end of the horizontal swivel arm 110.

The main workbench Bn arranged in the center of the loading platform of the inspection vehicle can turn around the second rotation axis R2 independently of the horizontal swivel arm 110, and has an end portion protruding in the vehicle width direction along the horizontal swivel arm 110. When slidably arranged toward 122, it is possible to provide a load balance mechanism that can be offset against the support arm by the cooperation between the turning position of the main workbench Bn and the counterweight 112.

Further, a support arm 120 capable of tilting a plurality of work tables from a low place on the inner wall of the tunnel to a high place on the ceiling and tilting to a work position O is a four-node link mechanism from a pair of parallel main arms 121a and auxiliary arms 121b. When a plurality of work tables B1 to Bn constituting 121 are pivotally attached via the support link 122 at regular intervals from the height of the tip to the low of the base, the support arm can be pivoted at any tilt angle position. The workbench will be kept horizontal.

It is a side view which shows the storage state of the inspection vehicle which can run by arranging a plurality of work tables of this invention in the stairs. It is a top view which shows the storage state of the inspection vehicle which can run by arranging a plurality of work tables of this invention in the stairs. It is a rear view which shows the storage state of the inspection vehicle which can run by arranging a plurality of work tables of this invention in the stairs. It is a top view which shows the state which turned to the work position of the inspection vehicle which can run by arranging a plurality of work tables of this invention in a staircase shape. It is a side view which shows the state which turned to the work position of the inspection vehicle which can run by arranging a plurality of work tables of this invention in a staircase shape. It is a rear view which shows the state which the support arm is turned to the work position of the inspection vehicle of this invention, and then the support arm is tilted, and a plurality of work tables are arranged in a step shape. It is a side view which shows the state which the support arm is turned to the work position of the inspection vehicle of this invention, and then the support arm is tilted, and a plurality of work tables are arranged in a step shape. It is a top view which shows the state which the support arm is tilted at the work position of the inspection vehicle of this invention, a plurality of work tables are arranged in a staircase shape, and then the main work table is turned. It is a side view which shows the state which the support arm is tilted at the work position of the inspection vehicle of this invention, a plurality of work tables are arranged in a staircase shape, and then the main work table is turned. FIG. 9 is a rear view showing a stable working state in which the counterweight is extended at the working position of FIG. 9 and the stabilizer SL is installed. It is a top view which shows the state which slides the main work times Bn back and forth at the work position of FIG. It is a side view which shows the state which slides the main work times Bn back and forth at the work position of FIG. (A) is a side view of the main part showing the state before tilting of the tilting mechanism of the support arm, and (b) is a side view of the main part in the state where the tilt angle α is tilted. It is a rear view which shows the working state in a tunnel. (a) is a rear view showing the working state in the tunnel of the present invention, and (b) is a rear view showing the working state in the conventional tunnel. A front view of a conventional tunnel inspection vehicle equipped with a single workbench is shown.

Hereinafter, embodiments of a tunnel inspection vehicle to which the present invention is applied will be described with reference to the drawings.
As shown in FIG. 15A, a plurality of tunnel inspection vehicles according to the present invention are traveling while traveling on the left or right half width of the boundary center line of the road extending in the longitudinal direction in the tunnel T, or by stopping at any time. Workers M1 to M5 tunnel multiple worktables B1 to Bn for simultaneous inspection at a certain interval from the ceiling height W / high to the low place W / low of the inner wall W of half of the tunnel T. It is arranged in a staircase pattern from the high ceiling to the low side wall along the inner wall of the half.

As shown in FIG. 14, the structure 100 includes a horizontal swivel arm 110 that swivels clockwise and counterclockwise around the first rotation axis R1 in the center of the loading platform. A tilting support arm 120 is pivotally attached to the end 111 protruding beyond the vehicle width of the arm 110 with the base 121 as a fulcrum, and diagonally upward from the base low W / low to the tip high W / high. It extends at an angle and supports the workbench B1 to Bn-1 in a staircase pattern. In order to tilt the support arm 120 in a crocodile opening system, the support arm 120 is tilted with respect to the horizontal swivel arm 110 by the drive cylinder 140. On the other hand, in order to balance the load with the end 111 pivotally attached to the base 121 of the support arm, a counterweight 113 is provided at the end 112 on the opposite side of the first rotation axis R1 of the horizontal swivel arm. Further, the stabilizer leg SL, which extends downward from the loading platform and touches the ground in the front-rear direction across the rear wheel of the truck, can prevent the loading platform from swinging in the width direction.

As shown in the side view of FIG. 1, the plan view of FIG. 2, and the rear view of FIG. 3, the tunnel inspection vehicle according to the present invention has a horizontal swivel arm 110 that can swivel around the first rotation shaft R1 at the center of the loading platform. A wide main workbench Bn is provided so as to be swivelable, and the support arm 120 is pivotally attached to the end 111 of the horizontal swivel arm 110 with its base 121 as a fulcrum so as to cover the base, and is slightly longer than the tip thereof. The auxiliary workbench B1 and the normal workbench B2 and B3 are pivotally attached to the support arm 120 via a four-section link mechanism (FIGS. 13A and 13B). Therefore, the work tables B1 to B3 are attached to the support arm so as to maintain a horizontal position regardless of the tilt angle of the support arm (FIG. 14). The horizontal swivel arm 110 is swiveled around the first rotation axis R1 in the center of the loading platform from the working platform storage position S (FIG. 2) extending in the longitudinal direction of the loading platform to the working position O (FIG. 4) extending in the lateral width direction of the loading platform. Can be done. At the working position O swiveled 90 degrees, the end 111 extends beyond the vehicle width of the horizontal swivel arm 110, and the support arm 120 pivotally attached to the base 121 is tilted by the drive cylinder 140 (FIGS. 6 and 6). 7) However, as shown in FIGS. 13 (a) and 13 (b), the support arm 120 constitutes a four-node link mechanism 121 from a pair of parallel main arms 121a and auxiliary arms 121b, and the tip height to the base low position. A plurality of work tables are pivotally attached via the support link 122 at regular intervals. As a result, the support arm 120 is tilted by the drive cylinder 140 via the support link 141 to change its angle, but the work tables B1 to B3 are maintained horizontally at any tilt angle position. Here, the workbench B4 is installed at the base of the support arm 120, and the main workbench Bn swivels around the rotation axis R2 independently of the horizontal swivel arm 110, but does not follow the tilt of the support arm 120 and swings. do not do.

Therefore, in the present invention, the support arm 120 that supports the workbench in a stepped manner with respect to the horizontal swivel arm 110 is configured as a tiltable crocodile opening type, and the support arm 120 is tilted with respect to the horizontal swivel arm 110 by the drive cylinder 140. By adjusting α, the workbench B1 at the tip height is placed at a high place near the ceiling in the tunnel, and the workbench B4 is placed at a low place at the base of the support arm. The proper position can be easily secured in order up to B4 via B3. In addition, in the present invention, a load is applied from the support arm 120 to the truck via the horizontal swivel arm 110 in a direction in which the truck rolls over, but the counter weight 113 provided at the opposite end of the horizontal swivel arm 110 also works. It is equipped with a load balance mechanism so that it can be balanced by the table Bn.

Further, the main workbench Bn arranged in the center of the inspection vehicle carrier can swivel around the second rotation axis R2 independently of the horizontal swivel arm 110 (FIGS. 8 and 9) and along the horizontal swivel arm 110. Since it is slidably arranged (FIGS. 11 and 12) by a slider toward the end portion 122 protruding in the vehicle width direction, the turning position of the main workbench Bn and the counter weight 112 cancel each other out with respect to the support arm. It is a load balancing mechanism with possible functions.

As described above, according to the embodiment, since a plurality of work tables can be arranged from a high place to a low place along the inner wall of the tunnel by the tiltable support arm while maintaining the load balance, the tunnel can be inspected while traveling. Can be performed, and the tunnel inspection efficiency can be significantly improved.

The present invention is not limited to the embodiment, and since a plurality of work tables are provided so as to be swingable on a support arm mechanism capable of horizontally swiveling and tilting, the plurality of work tables can be raised to the height of the inner wall of the tunnel by swiveling and tilting the support arm. It can be placed from a place to a low place. Moreover, if the support arm is provided so as to be able to swing via the four-node link mechanism, the workbench can be maintained horizontally at any tilting position. In addition, a counterweight is provided on the opposite side of the horizontal swivel arm to which the support arm is pivotally mounted, and the main workbench that can swivel horizontally together with the horizontal swivel arm can be swiveled horizontally independently of the horizontal swivel arm to balance the load. Since it can be taken, it can be deformed without deviating from the gist that it is possible to run while working.

Claims (3)

While traveling the width of either the left or right half of the boundary center line of the road extending in the longitudinal direction in the tunnel T, a plurality of workers M are in the ceiling height W / high to the low place W of the inner wall W of the half of the tunnel T. -In low, a structure 100 is provided in which a plurality of work tables B1 to Bn for simultaneous inspection are arranged in a staircase pattern from a high place on the ceiling to a low place on the side wall along the inner wall of half of the tunnel at regular intervals. It ’s a tunnel inspection car.
The structure 100 in which the plurality of work tables B1 to Bn are arranged stepwise from the ceiling high place W / high to the side wall low place W / low along the inner wall W of half of the tunnel T is the first structure 100 in the center of the loading platform. The base 121 is pivotally attached to the horizontal swivel arm 110 that swivels around the rotation axis R1 and the end portion 111 that protrudes beyond the vehicle width of the arm, and extends diagonally upward from the base low place to the tip high place. A support arm 120 in which work tables B1 to Bn-1 are pivotally attached from the tip to the base at regular intervals, and a drive cylinder 140 that tilts the support arm 120 with the base as a fulcrum and the tip is tilted in an open shape. It is provided with a swivel tilt arm mechanism including, and a load balance mechanism in which a counter weight 113 is provided at an opposite end 112 with a first rotation shaft R1 at the end pivotally attached to the base 121 of the support arm.
The horizontal swivel arm 110 is swiveled around the first rotation axis R1 in the center of the loading platform from the work platform storage position S extending in the longitudinal direction of the loading platform to the working position O extending in the lateral width direction of the loading platform, and then the vehicle of the horizontal swivel arm. The support arm 120 having the base 121 pivotally attached to the end 111 extending beyond the width is tilted by the drive cylinder 140, and the plurality of work tables B1 to Bn are placed at regular intervals along the inner wall of the tunnel half. A tunnel inspection vehicle characterized by being arranged in a staircase pattern from a place to a lower side wall. The main workbench Bn is mounted on the auxiliary swivel arm 110a provided so as to be swivel around the second rotary shaft R2 independently of the horizontal swivel arm 110 that swivels around the first rotary shaft R1, and also the auxiliary swivel. While slidably arranged along the arm 110a by the slider S, the other plurality of work tables B1 to Bn-1 are pivotally attached to the support arm 120 so as to be slidable.
When the workbench is stored, it is folded and stored on the main workbench Bn in the storage position S in the center of the loading platform so that the support arm 120 extends in the front-rear direction of the loading platform so as to horizontally cover it. The horizontal swivel arm 110 further swivels around the second rotation axis R2 from the position where the horizontal swivel arm 110 projects laterally, and the end 122 of the horizontal swivel arm 120 protrudes in the lateral width direction beyond the vehicle width. At the work position O, the main workbench Bn is swiveled horizontally around the second rotation axis R2 with respect to the horizontal swivel arm 110, and cooperates with the load balance mechanism provided with the counter weight 113 along the inner wall of the tunnel. The tunnel inspection vehicle according to claim 1, wherein the load is balanced with the load of the support arm 120 in which a plurality of work tables B1 to Bn-1 are arranged in a stepped manner. The support arm 120 that can be tilted from the horizontal storage position S of the loading platform 100 to the work position O that extends at an angle α from the low position of the inner wall of the tunnel to the high point of the ceiling by the drive cylinder 140 is parallel to the main arm 121a. A four-node link mechanism 121 parallel to the auxiliary arm 121b extending from the auxiliary arm 121b is formed, and a plurality of work tables B1 to Bn-1 support the four-node link mechanism at regular intervals from the height of the tip to the low of the base. It is pivotally attached via the link 122, and the workbench B1 to Bn-1 are pivotally attached so as to be maintained horizontally at any inclination angle α of the support arm 120 via the parallel four-node link mechanism. The tunnel inspection vehicle according to claim 1 or claim 2, which is characterized.

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