JPH02144391A - Odor diffusion preventing device for hydraulic elevator - Google Patents

Abstract

PURPOSE:To prevent imparting the odor and the bad smell of working oil on a passenger by a method wherein a spiral scraper to scrape down an oil film adhered on the outer peripheral surface of a plunger when the plunger is moved in a direction in which it is protruded from a cylinder is mounted to a hold part. CONSTITUTION:An odor diffusion preventing device is formed with a scraper 11 made of a resilient substance, situated to the upper part of a packing press 8 to press a packing 7, and a scraper press 12, divided into sections. Working oil in a cylinder 1 is sealed by the packing 7 mounted to the upper part of a guide metal 6 in a ground part 4, but along with slide of a plunger 2, working oil flows out through a gap between the plunger 2 and the packing 7. The working oil is scraped down from the plunger 2 by means of a spiral scraper 11, and an amount of an oil film adhered on the surface of the plunger 2 protruded from the ground part 4 is reduced. This constitution reduces steam density of working oil diffused in an elevator tower, and enables reduction of an odor floating in the tower and an elevator cage.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an odor diffusion prevention device for a hydraulic elevator.

[Conventional technology]

A hydraulic jack in a conventional hydraulic elevator is as described in Japanese Patent Application Laid-Open No. 59-4546.

It includes a cylinder, a plunger stored in the cylinder and having one end protruding through the end of the cylinder, and a seal installed in the plunger penetration part of the cylinder, and the movement (up and down movement) of the plunger is , guided by metal installed inside the cylinder.

The seal is adjusted so that the plunger moves up and down smoothly and provides a comfortable ride, that is, so that the car that is raised and lowered by the plunger starts and stops moving smoothly.

[Problem to be solved by the invention]

In the conventional type described above, when the plunger protrudes from the cylinder, hydraulic oil remains as an oil film on the plunger surface.
This evaporates due to the heat of the hydraulic oil itself and the plunger and is dissipated into the surrounding area, ie, into the hoistway.

The hoistway is filled with foul odors and abnormal odors from hydraulic oil, which enter the car through gaps, causing discomfort to passengers inside the car, and when any car stops and the door opens. However, there was an inconvenience in that the foul odor of hydraulic oil and foreign odors were blown out from between the landing-side sill and the car-side sill, causing discomfort to passengers trying to get on and off the train.

SUMMARY OF THE INVENTION An object of the present invention is to provide an odor diffusion prevention device for a hydraulic elevator that does not cause discomfort to passengers due to bad odor or foreign odor of hydraulic oil.

[Means to solve the problem]

The purpose is for the plunger penetration part of the cylinder.

An enclosure is installed to surround this plunger penetration part, and a holding part is formed in the syringe penetration part of this enclosure to extend spirally along the outer peripheral surface of the plunger, and the holding part is provided with a holding part that extends in a direction in which the plunger protrudes from the cylinder. This is achieved by installing an elastic spiral scooper that scrapes off the oil film adhering to the outer peripheral surface of the plunger when it moves.

[Effect]

As mentioned above, by scraping off the adhesion of the hydraulic oil leaking from the packing seal part on the plunger surface using a spiral scraper made of elastic material.

Reduces the thickness of the oil film from the protruding part of the upper end of the plunger cylinder as the car rises, suppressing vapor dissipation from the plunger surface. Therefore, it is possible to eliminate the smell of hydraulic oil from the hydraulic elevator in the hoistway and in the car.
Passengers will no longer feel uncomfortable due to the foul odor or foreign odor of hydraulic oil.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings. 1st
The figure shows its overall structure, and FIG. 2 shows a detailed view of the odor diffusion prevention device.

In FIG. 1, the hydraulic elevator includes a cylinder 1, a plunger 2 that is housed in the cylinder 1 and has one end protruding through the end of the cylinder 1, and a gland section that is installed in the penetration part of the plunger 2 of the cylinder 1. 4, the cage 3 is connected to the plunger 2 directly or indirectly via a rope, and the hydraulic power source device 5 is connected to the cylinder 1.
The plunger 2 is guided by the guide metal 6 provided in the gland part 4 with the hydraulic oil pumped from the hydraulic oil. The gasket 7 suppresses leakage, and the car 3 is raised and lowered when the amount of leakage remains on the plunger 1 as an oil film.

In FIG. 2, the odor diffusion prevention device includes a spiral scraper 11 made of an elastic body and a scraper presser 1 divided into several parts on the upper part of a seal presser 8 that holds the seal 7.
It is composed of 2. A scraper holder 12 that presses the spiral scraper 11 against the plunger 2 is fixed with a stud bolt 14 and a nut 15 at a gland fixing seat 13 provided on the upper part of the seal holder 8, and the force for pressing the spiral scraper 11 against the plunger 2 is adjusted. To do this, use the adjustment pieces J and 6 attached to the scraper holder 12 and the adjustment bolt 17 and nut 18. The entire gland part 4 is covered with a dust cover 21, and a dust seal 2
2, a diffusion cover 23 is provided to remove dust adhering to the plunger 2 surface and prevent it from flowing into the gland section 4, and to prevent the hydraulic oil scraped from the plunger 2 surface from dissipating. Next, the operation will be explained.

The hydraulic oil in the cylinder 1 is sealed by a packing 7 provided on the upper part of the guide metal 6 in the gland section 4.
The oil leaks out from the gap between the plunger 2 and is scraped off with the spiral scraper 1, reducing the amount of oil film adhering to the surface of the plunger 2 that protrudes from the gland part 4, and reducing the amount of hydraulic oil dissipated into the elevator tower. The vapor density is reduced, and the odor floating inside the tower and the cage 3 is reduced.

According to the above embodiment, since the scraper has a spiral shape, the scraper 11 can be installed or replaced without disassembling the cylinder 1, plunger 2, etc.

〔Effect of the invention〕

As described above, according to the present invention, hydraulic oil leaking from the packing seal portion is prevented from adhering to the plunger surface.

Scraping with an elastic spiral scraper reduces the thickness of the oil film from the protruding part of the upper end of the plunger cylinder as the car rises, and suppresses vapor dissipation from the plunger surface. Therefore, it is possible to prevent the odor of hydraulic oil from the hydraulic elevator from lingering in the hoistway and in the car, thereby eliminating the discomfort caused to passengers due to the foul odor of the hydraulic oil.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention, and FIG. 2 is a detailed diagram of an odor diffusion prevention device. DESCRIPTION OF SYMBOLS 1... Cylinder, 2... Plunger, 3... Basket, 4 Gland, 6... Guide metal, 7... Packing, 11... Spiral scraper, 12... Creper holder, 13... ...Gland fixing seat, 16...Adjustment piece, 21...Dust cover, 22...Dust seal,
23. Defeat 11 Nicover

Claims (1)

[Claims] (1) a cylinder, a plunger housed within the cylinder, and one end of which protrudes through the end of the cylinder;
In an odor diffusion prevention device for a hydraulic elevator in which a car is raised and lowered by a hydraulic jack having a packing seal provided in a plunger penetration part of the cylinder, an enclosure surrounding the plunger penetration part is installed in the plunger penetration part of the cylinder. A holding part is formed in the plunger penetrating part of this enclosure to extend spirally along the outer circumferential surface of the plunger, and the holding part is attached to the outer circumferential surface of the plunger when the plunger moves in the direction of protruding from the cylinder. This is an odor diffusion prevention device for hydraulic elevators, which is equipped with a spiral scraper made of an elastic material to scrape off oil film.