JPH02204292A - Hydraulic elevator installing method - Google Patents

Abstract

PURPOSE:To heighten work efficiency and safety by providing a working bench on which workers can elevate and work stably in the position of desired height. CONSTITUTION:After the erection of a hydraulic jack 9, a pulley is fitted at the hydraulic jack 9 on a work floor 2, a wire rope with the one end connected to the elevating path 1 side and the other end connected to the frame 11 side respectively is hung on this pulley, thus the cage frame 11 and a working bench 12 can be elevated by the operation of the hydraulic jack 9 through the wire rope. Workers on this working bench 1 perform erection work of the part from the lower part of the elevating path 1 up to the working bench 2. Accordingly, the hydraulic elevator can be installed without setting up scaffolds across the whole length of the elevating path 1.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a method of installing a hydraulic elevator.

[Prior Art] Conventionally, the installation method of a hydraulic elevator includes a fixed scaffold made of steel pipes or wood that is assembled in the shape of a grid in the hoistway, and a work plate is attached to this scaffold according to the work position. At the top, we installed guide rails, landing parts, etc., connected hydraulic jacks, and installed wiring in the hoistway.
After that, the scaffolding that had been erected in the shape of a crossbeam was dismantled, and then the cage frame was assembled.

For rope type elevators, for example, 1
As shown in Publication No. 4-40449.

A movable scaffold is installed at the entrance/exit of the building, and the guide rail is attached to the wall of the hoistway using this movable scaffold, and then a hoist is installed in the machine room formed above the hoistway. It has been proposed that the car frame be moved up and down along the hoistway to perform installation work inside the hoistway, such as installing landing parts, wiring, and piping, and then assembling the ceiling, side panels, etc. into the car frame and wiring around the car. There is.

[The problem that the invention tries to solve! l! ] By the way, in the conventional hydraulic elevator installation method described above, scaffolding is erected along the entire length of the hoistway.
In addition to requiring a large amount of scaffolding material, a great deal of labor is required to assemble and dismantle the scaffolding, and each worker must climb up and down the scaffolding using their own blade, which significantly impedes work efficiency. there were. Not only is there a risk of falling when going up and down the scaffolds mentioned above, but the crossbeams and work plates installed on each scaffold are fixed in a predetermined position, which means that it is difficult to adjust the height position appropriately. There was also a safety issue, as workers were required to sit in unstable positions, such as stretching up or bending down.

The present invention has been made in view of the actual situation in the prior art as described above, and its object is to provide a hydraulic elevator that can be installed without requiring scaffolding to be installed over the entire length of the hoistway. The objective is to provide an installation method.

[Means for Solving the Problems] In order to achieve this object, the present invention provides a hydraulic elevator having a hydraulic jack installed vertically in a hoistway, and a car frame that moves up and down in accordance with the vertical movement of the hydraulic jack. In the installation method, first, a working floor is provided at the top of the hoistway, centering is performed, and the guide rail for the car is erected in the hoistway, and the car frame that engages with the guide rail and the car frame are installed. Assemble a workbench attached to the upper part of the car frame, set up a guide rail for the hydraulic jack along the longitudinal direction of the guide rail, and then attach a guide fitting to engage the guide rail to the hydraulic jack. Once installed, this hydraulic jack is lifted up and erected along the guide rail for the hydraulic jack, and then this hydraulic jack and the hydraulic power unit are connected via an oil pipe, and a temporary operation panel is attached to one workbench. , connect this temporary operation panel and the hydraulic power unit with a construction operation cable, then remove the guide fitting while operating the hydraulic jack, and connect the wire with one end connected to the hoistway side and the other end to the car frame side. A pulley on which the rope is hung is attached to the upper part of the hydraulic jack.5Then, while raising and lowering the car frame and work platform via the wire rope, the worker on the work platform inspects the equipment including wiring and piping in the hoistway. It is configured to perform installation work.

[Function] Since the present invention is configured as described above, the installation of the car guide rail, the assembly of the car frame, the holding of the hydraulic jack, and the installation of the hydraulic jack guide rail are carried out at the lower part of the hoistway, and at the same time The above-mentioned installation of the upper part of the guide rail is carried out on the work floor provided in the section. When the hydraulic jack is lifted, it is guided by the above-mentioned guide rail via the guide fitting, and the hydraulic jack is erected at an intermediate height position in the hoistway without requiring manual support. After the hydraulic jack is erected, a pulley is attached to the top of the hydraulic jack on the above-mentioned work floor, and a wire rope connected to the hoistway side at one end and the car frame side is hung from the pulley at the other end. , the car frame and the work platform can be raised and lowered via a wire rope by the operation of a hydraulic jack, and a worker on this work platform performs the installation work from the bottom of the hoistway to the work floor. Hydraulic elevator installation can be carried out without the need to install scaffolding over the entire length of the road.

[Example] Hereinafter, a method for installing a hydraulic elevator according to the present invention will be explained based on the drawings.

Figures 1 to 6 are diagrams illustrating an embodiment of the hydraulic elevator installation method of the present invention. Figure 1 is a flowchart showing the work procedure, and Figure 2 shows the state in which the lower guide rail is erected. 3 is a vertical sectional view showing the state in which the hydraulic jack is erected, FIG. FIG. 6 is a plan view showing the upper end portion of the hydraulic jack, and FIG. 6 is a front view showing the upper end portion of the hydraulic jack. In addition.

Steps 16 to 19, which are indicated by double frames in FIG. 1, are performed on a workbench as shown in FIG. 4.

A work floor 2 is assembled at the top floor position in the hoistway 1 in FIG. 1, an upper template 3 is installed above the work floor 2, and a lower template 4 is installed at the bottom of the hoistway 1. A centering piano wire 5 is stretched between these templates 3 and 4. Then, the lower guide rail 6a for the car is centered using the piano wire 5 as a reference line, and is fixed to the wall of the hoistway 1 via the bracket 7. Also.

A hydraulic power unit 8 is installed near the lower part of the hoistway 1.

The hydraulic jack 9 shown in FIG. 3 consists of a lower jack 9a held by a jack stand 10 at the lower part of the hoistway 1, and an upper jack 9b connectable to the upper end of the lower jack 9a. The connecting portions of the upper jacks 9b are provided with threaded portions (not shown) that are screwed into each other. on the other hand.

A workbench 12 on which an operator rides is attached to the upper part of the car frame 11 for permanent installation that engages with the lower guide rail 6a. A guide rail 13 for the hydraulic jack 9 is erected along the longitudinal direction of the lower guide rail 6a via a bracket 14, and the pair of guide rails 13 are
The opening prevention bracket 15 prevents them from opening in directions away from each other. Further, a guide fitting 16 attached to the upper end of the upper jack 9b engages with the guide rail 13, while a sheave 18 is attached to a bracket 14 at the top of the hoistway 1, and a winch attached to this sheave 18 is attached. One end of the lobe 19 is wound around a winch (not shown), and the other end is connected to the guide fitting 16 described above.

As shown in FIG. 6, this guide fitting 16 includes a main body 20 attached to the upper end of the upper jack 9b, a bottle 21 that connects the main body 2o to the upper jack 9b, and a screw threaded onto the upper part of the main body 20. For example, a hanging bolt 22 is formed with a thread having the same thread pitch as the threaded portion of the connecting portion of the lower jack 9a and upper jack 9b, and the above-mentioned winch lobe 19 is attached to the upper part of this hanging bolt 22. It consists of a hanging fitting 23 and a guide plate 24 provided on the hanging bolt 22. This guide plate 24 is the fifth
As shown in the figure, engaging portions 24a and 24b are provided at both ends to engage with the protruding portions of the pair of guide rails 13, respectively.

Further, an oil feed pipe 25 shown in FIG. 4 is provided between the hydraulic power unit 8 and the lower jack 9a.

On the other hand, a construction operation cable 27 is disposed between a temporary operation panel 26 installed on the car frame 12 and the hydraulic power unit 8. After the guide fittings 1 and 1 shown in FIG. 3 and the like described above are removed, a pulley 28 on which a wire rope (not shown) is hung is attached to the upper end of the upper jack 9b.

In this embodiment, the hydraulic elevator is installed according to the work procedure shown in FIG.

That is, first, as shown in FIG. 2 as step 1.

A work floor 2 is assembled and installed at the top floor position in the hoistway 1, and in step 1, an upper template 3 is installed above the work floor 2, and a lower template 4 is installed in the lower part of the hoistway 1, and in step 3, these are installed. A piano wire 5 is stretched between the templates 3 and 4. Next, as step 4, center the lower guide rail 6a at the lower part of the hoistway 1 using the piano [5 as a reference line, and fix it to the wall of the hoistway 1 via the bracket 7, and as step 5, as shown in FIG. Lower guide rail 6
Assemble the car frame 11 that engages with the car frame 11 in Step 6 of 1. Assemble the workbench 12 on the top of the car frame 11 in Step 1. In step 7 of Step 1, lift each part of the guide rail 13 with a winch (not shown) and set it upright, and open the opening prevention bracket 15. At the same time, the guide rail 13 is temporarily fixed to the wall of the hoistway 1 via the bracket 14. Next, as step 8, perform the following (a)
A hydraulic jack 9 is set up as shown in ~(d). (a
) Move the lower jack 9a to the jack stand 10 at the bottom of the hoistway 1.
(b) attach the guide fitting 16 to the upper end of the upper jack 9b; (c) lift the upper jack 9b via the guide fitting 16 with the guide fitting 16 engaged with the guide rail 13; d) These lower jacks 9a,
Center the upper jacks 9b and connect them to each other. and 1
In step 9, the connected hydraulic jack 9 is fixed via the jack stand 10.

Next, in step 10, as shown in FIG. 4, the hydraulic power unit 8 and the hydraulic jack 9 are connected via the oil feed pipe 25, and in step 11, the hydraulic power unit 8 is fixed.
As step 12, the temporary operation panel 26 is attached to the workbench 12, and the temporary operation panel 26 and the hydraulic power unit 8 are
The construction operation cable 27 is installed between the 1st and 1st steps 13, in which the temporary operation panel 26 is operated, oil is sent from the hydraulic power unit 8 through the oil feed pipe 25, and the hydraulic jack 9 is operated to perform a trial run. . After raising this hydraulic jack 9, the worker on the work floor 2 (e) removes the guide fitting 16 shown in FIG. 3, etc., and (f) moves the pulley 28 shown in FIG. Attach to the upper end of 1
Next, in step 14, a wire rope (not shown) is hung around the pulley 28, and one end of the wire rope is fixed to the hoistway 1 side, and then the temporary operation panel 26 is operated to lower the hydraulic jack 9, and the other end of the wire rope is attached to the car frame 11. In step 15, each part of the other guide rail 6b connected to the upper part of the lower guide rail 6a is sequentially lifted up and erected.
It is temporarily fixed to the wall of the housing via a bracket 7.

Next, the worker gets on the workbench 12 and presses the temporary operation panel 2.
6 to raise and lower the car frame 11 and the workbench 12, as step 16, center and fix the other guide rails 6b sequentially from the bottom to the top, (g) dismantle the workfloor 2, and (h) Disassemble template 3 etc. 1 step 17
Installing various equipment, such as landing parts, 1 Step 18
As step 1, install piping and wiring in the hoistway 1 and install the equipment in the hoistway 1 as step 19. In step 20, the workbench 12 is dismantled, and in step 21, the side plates and ceiling (not shown) are attached to the car frame 11, and the car is assembled.
As step 22, perform a test run and make adjustments.

In the embodiment configured in this way, it is not necessary to install scaffolding over the entire length of the hoistway 1.

Bottom of hoistway 1, work platform 12 on car frame 11, hoistway 1
The hydraulic elevator can be installed using the upper work floor 2 as a scaffold. Further, each work floor 2° work platform 12 is constructed from a relatively small amount of scaffolding material, and can be easily assembled and dismantled. Since the work floor 12 is raised and lowered by operating the temporary operation panel 26, work efficiency and safety can be improved compared to systems that require climbing and lowering using self-scissors.

It is possible to work in a stable posture by adjusting the height position of the work floor 12 as appropriate. Furthermore, the thread pitch of the hanging bolt 22 of the guide fitting 16 is the upper jack 9b.

Since the thread pitch of the connection part of the lower jack 9a is set to be the same as that of the lower jack 9a,
Ii! When controlling the upper jack 9b using the above-mentioned hanging bolt 22 as a connection layer, the upper jack 9b is rotated while the upper jack 9b is lifted up through the hanging bolt 22, and the connecting part of the upper jack 9b is connected to the connecting part of the lower jack 9a. can be screwed together.

Note that step 7 shown in FIG. 1 (erecting the guide rail 13,
Temporary fixing) may be performed after any of Steps 1 to 3 (Stretching the piano wire 5) to Step 5 (Assembling the car frame 11) instead of performing after Step 6 (Assembling the working metalwork 2). Step 11 (fixing power unit 8) is step 10 (oil pipe 2
Instead of doing it after Step 5 (fixing connections), you can do it first or from Step 1 (Assembling work floor 2) to Step 9 (Hydraulic jack 9
It may be performed after either of the following. Also, instead of performing step 12 (connecting the construction operation cable 27) after step 11 (fixing the power unit 8), it is performed in step 5.
(Assembling the car frame 11) to Step 10 (Connecting and fixing the oil feed pipe 25) may be performed after any one of Step 15 (Temporarily fixing the guide rail 6b upright) to Step 14 (Pulley 28
5 step 4 instead of next step 4
(Fixing the centering of the lower guide rail 6a) to step 13 (test run) may be performed, and step 17 (installation of landing parts) to step M19 (installation of equipment in the hoistway 1) may be performed. If necessary, the order may be reversed, or the steps may be performed sequentially from the lower part of the hoistway 1 to the upper part simultaneously with step 16 (centering and fixing the guide rail 6b).

Furthermore, step 20 (dismantling the workbench 12) is performed manually instead of following step 19 (installation of equipment in the hoistway 1).
The step 16 (centering and fixing the guide rail 6b) to step 18 (piping and wiring in the hoistway 1) may be performed subsequently.

[Effects of the Invention] Since the present invention is configured as described above, a hydraulic elevator can be installed without requiring one scaffold to be placed along the entire length of the hoistway, and therefore, the number of scaffolding materials can be reduced. Alternatively, the labor required for assembling and dismantling the scaffolding can be reduced. After the hydraulic jack is erected, a worker can climb up and down on the workbench and work in a stable posture from a desired height position, compared to the conventional method of climbing up and down a fixed scaffold using its own blade. This has the effect of improving work efficiency and safety.

[Brief explanation of the drawing]

Figures 1 to 6 are diagrams explaining an embodiment of the hydraulic elevator installation method of the present invention, with Figure 1 being a flowchart showing the work procedure, and Figure 2 showing the state in which the lower guide rail is erected. 3 is a vertical sectional view showing the state in which the hydraulic jack is erected, FIG. FIG. 6 is a plan view showing the upper end portion of the hydraulic jack, and FIG. 6 is a front view showing the upper end portion of the hydraulic jack. 1...Hoistway, 2...Working floor, 6...
...Guide rail, 6a...Lower guide rail, 9...Hydraulic jack, 9a...
Lower jack, 9b... Upper jack, 11...
...Car frame, 12...Workbench, 13...
... Guide rail, 16 ... Guide metal fittings, 26
...Temporary operation panel, 28... Sheave. Figure 4 Figure 3 Figure 5 Figure 6

Claims (1)

[Claims] (1) In a method for installing a hydraulic elevator having a hydraulic jack installed vertically in a hoistway and a car frame that moves up and down in response to the vertical movement of the hydraulic jack, first, a work floor is provided above the hoistway; After performing centering, the guide rail for the above-mentioned car is erected in the hoistway, the above-mentioned car frame that engages with this guide rail, and the workbench attached to the upper part of this car frame are assembled at the bottom, and the above-mentioned car guide rail is installed in the hoistway. A guide rail for the hydraulic jack is erected along the longitudinal direction of the guide rail, and then a guide fitting that engages with this guide rail is attached to the hydraulic jack, and the hydraulic jack is attached to the guide rail for the hydraulic jack. The hydraulic jack and the hydraulic power unit are then connected via an oil pipe, a temporary operation panel is attached to the work platform, and construction operations are performed between the temporary operation panel and the hydraulic power unit. Connect it with a cable, then remove the guide fitting while operating the hydraulic jack, and install a pulley on top of the hydraulic jack, on which a wire rope is hung, with one end connected to the hoistway side and the other end connected to the car frame side. Then, while raising and lowering the car frame and the work floor via the wire rope, a worker on the work floor installs equipment including wiring and piping in the hoistway. .