CN201963919U

CN201963919U - Automatic drainer

Info

Publication number: CN201963919U
Application number: CN2011201170073U
Authority: CN
Inventors: 王胜平; 蒋建胜; 林振宇
Original assignee: Zhejiang Blch Pneumatic Science & Technology Co Ltd
Current assignee: Zhejiang Blch Pneumatic Science & Technology Co Ltd
Priority date: 2011-04-14
Filing date: 2011-04-14
Publication date: 2011-09-07
Anticipated expiration: 2021-04-14

Abstract

The utility model relates to an automatic drainer, which comprises a buoy, an inner cover, a piston, a drainage joint and a gasket. A vertical sleeving hole is formed at the center of the buoy. The inner cover is arranged in the sleeving hole. A throttling orifice is formed at the upper end of the inner cover. The drainage joint is arranged at the lower end of the inner cover. A vertical drainage port is formed at the center of the drainage joint. The piston is tightly arranged in the inner cover and the drainage joint. The piston can slide relatively along the inner wall of the inner cover. A piston spring is arranged between the piston and the upper end face of the inner cover. A plugging surface is formed at the upper end of the buoy. A plurality of air holes are formed on the plugging surface. The position inside the plugging surface, which is opposite to the throttling orifice, is provided with the gasket. A reset spring is arranged between the plugging surface and the inner cover. In the utility model, a lever is saved. The automatic drainer has a simple and convenient structure, a low cost and high stability and reliability.

Description

A kind of automatic water trap

Technical field

The utility model relates to a kind of drainage means, especially a kind of automatic water trap.

Background technique

Existing pressurized air automatic water trap, adopting the buoyancy come-up of float in water to promote lever rises, lever is provided with soft gasket, soft gasket covers on the inlet hole of inner cover, in the lever uphill process, drive soft gasket and leave inlet hole, thereby make air enter inner cover, be depressed at the effect lower piston of air pressure and spring, the water in the hydathode is discharged from the drainage hole of opening.Can wear and tear in the joint of lever in long using process, and when the activity of lever had some setbacks, what can cause that inlet hole can't be in good time was opened and closed, thereby make the hydathode can not draining, influences its proper functioning.

Summary of the invention

The purpose of this utility model be to provide a kind of can long-term stable operation, reliability high automatic water trap.

For achieving the above object, the utility model adopts a kind of automatic water trap, comprise floating drum, inner cover, piston, drainage joint, pad, be formed centrally vertical trepanning in the floating drum, inner cover is arranged in the trepanning, the inner cover upper end forms a throttle orifice, drainage joint is arranged on the inner cover lower end, is formed centrally vertical drain opening in the drainage joint, and piston closely is arranged in inner cover and the drainage joint, piston can be along the inwall slide relative of inner cover, be provided with piston spring between piston and the inner cover upper-end surface, the floating drum upper end forms a shutoff face, forms a plurality of air holes on the shutoff face, shutoff face is inboard to be relatively set with pad with throttle orifice, is provided with Returnning spring between shutoff face and inner cover.

The beneficial effects of the utility model are that the upper end of floating drum is a shutoff face, be relatively set with pad with throttle orifice on the shutoff face, utilize offseting and throwing off of throttle orifice and pad, realize closing and opening of throttle orifice, do not have abrasion between pad and the throttle orifice, the life-span is longer, the utility model has been removed lever from, features simple structure, cost is low, stability and reliability height.

The utility model further is set to described floating drum and comprises the floating drum sidewall, the structure of floating drum sidewall is to be that the U-loop that makes progress of opening is circular around what constitute by sectional shape, the floating drum sidewall upper closely is connected with shutoff face, and the joint of floating drum sidewall and shutoff face is provided with seal ring.Spar structures makes its installation simpler, and better tightness.

Description of drawings

Fig. 1 is the utility model embodiment's a generalized section.

Fig. 2 is the utility model embodiment's a section action schematic representation.

Embodiment

As Fig. 1, shown in 2, embodiment of the present utility model is a kind of automatic water trap, comprise floating drum 1, inner cover 2, piston 3, drainage joint 4, pad 5, floating drum 1 comprises the shutoff face 12 of floating drum sidewall 11 and upper end, be formed centrally vertical trepanning 13 in the floating drum 1, form a plurality of air holes 14 on the shutoff face 12, shutoff face 12 inboards are provided with pad 5, the structure of floating drum sidewall 11 is to be that the U-loop that makes progress of opening is circular around what constitute by sectional shape, floating drum sidewall 11 upper ends closely are connected with shutoff face 12, floating drum sidewall 11 is provided with seal ring 15 with the joint of shutoff face 12, inner cover 2 is arranged in the trepanning 13, inner cover 2 upper ends form a throttle orifice 21, throttle orifice 21 is corresponding with pad 5, drainage joint 4 is arranged on inner cover 2 lower ends, be formed centrally vertical drain opening 41 in the drainage joint 4, piston 3 is arranged in inner cover 2 and the drainage joint 4, be provided with V-shaped seal ring 31 between piston 3 and the inner cover 2, be provided with O RunddichtringO 32 between the drain opening of piston and drainage joint, piston 3 can be along the inwall slide relative of inner cover 2, be provided with piston spring 6 between piston 3 and inner cover 2 upper-end surfaces, 2 of shutoff face 12 and inner covers are provided with Returnning spring 7.

The utility model embodiment's working principle is that floating drum 1 floats on the surface, and when water level rose to certain position, floating drum 1 rose, driving pad 5 throws off with throttle orifice 21, air pressure enters in the inner cover 2 from throttle orifice 21, and air pressure increases moves down piston 3, and drain opening 41 is opened draining; Water level falls to certain altitude, and throttle orifice 21 is closed, and the air pressure in the piston 3 is discharged from piston 3 belows, and drain opening 41 is closed.

Claims

1. automatic water trap, comprise floating drum, inner cover, piston, drainage joint, pad, be formed centrally vertical trepanning in the floating drum, inner cover is arranged in the trepanning, the inner cover upper end forms a throttle orifice, drainage joint is arranged on the inner cover lower end, be formed centrally vertical drain opening in the drainage joint, piston closely is arranged in inner cover and the drainage joint, and piston can be provided with piston spring between piston and the inner cover upper-end surface along the inwall slide relative of inner cover, it is characterized in that: the floating drum upper end forms a shutoff face, form a plurality of air holes on the shutoff face, shutoff face is inboard to be relatively set with pad with throttle orifice, is provided with Returnning spring between shutoff face and inner cover.

2. automatic water trap according to claim 1, it is characterized in that: described floating drum comprises the floating drum sidewall, the structure of floating drum sidewall is to be that the U-loop that makes progress of opening is circular around what constitute by sectional shape, the floating drum sidewall upper closely is connected with shutoff face, and the joint of floating drum sidewall and shutoff face is provided with seal ring.