CN2187720Y - Adjusting valve with sealing seat - Google Patents

Abstract

The utility model relates to an adjusting valve with a sealing seat, belonging to the technical field of three-way adjusting valve for hot water heating system. The utility model is composed of a valve body, a sealing seat, rubber O-shaped rings, a shim, press nuts, a stuffing box, a valve rod, a handle and a ball head. The sealing seat is positioned between the valve body and the valve rod. The upper section and lower section of the outer of the sealing seat are provided with outer screws. The upper part of the inner of the sealing seat is provided with conical bores. The lower part of the inner of the sealing seat is provided with a seal cavity with glabrous side wall. Outer screws on the lower section of the sealing seat are firm-connected with inner screws on the valve body. The valve rod passes through the base from the inner to the outer. Two rubber O-shaped rings are arranged in parallel direction between the valve rod and the sealing seat. Outer screws on the upper section of the sealing seat are connected with press nut screws. The stuffing box can be filled between press nuts and the sealing seat. Then the stuffing box can be pressed tightly by press nuts. The sealing structure of the utility model has the advantages of flexible rotation and tight sealing. Especially, the utility model can work with water when the event of leakage occurs.

Description

Adjusting valve with sealing seat

The modulating valve of band sealing base belongs to hot water system with manual three-way control valve technical field.

The manual three-way valve that uses in China's hot water system generally is two kinds of sealing means at present, i.e. mode of filling out the letter sealing with the mode or the employing of one seal by elastomeric O-ring.Though the former leakproofness is good, rotate flexibly, its sealing mechanism is to lean on the resiliently deformable of rubber to guarantee, so the life-span is short, in case water clock just needs to stop using, elastomeric O-rings is changed in the back that sluices, if valve body is irony, then more can be because of the valve body rough damage of quickening elastomeric O-rings of getting rusty; The latter then exists flexibly and the contradiction of leakproof, and promptly tension is dumb, crosses easily water clock of pine.

The purpose of this utility model provides a kind of modulating valve that has seal by elastomeric O-ring concurrently and fill out the band sealing base of letter formula sealing advantage.

The utility model is achieved in that sets up a copper sealing base between three way valve and valve rod, it is connected fastening from valve body top with the valve body internal thread, copper valve rod passes pedestal from inside to outside, the twice that be arranged in parallel between valve rod and sealing base O type rubber ring, epimere at sealing base has outside thread to be connected with pressing box thread, between the top of pressing female and sealing base, can fill leakproofing material such as the teflon or the rope made of hemp etc., with pressing mother to compress.

The sealing configuration that the utility model had rotates flexibly, sealing is tight, especially can repair by submersible when contingency produces water clock, and copper material is all adopted at sealing of the present utility model position, eliminated problem of rustiness, thereby also made the Synthesis durability of valve improve a lot.

Concrete structure of the present utility model is provided by the following drawings and embodiment:

Fig. 1 is the partial schematic sectional view of the modulating valve of band sealing base;

Fig. 2 is the sealing base structural representation.

The modulating valve of band sealing base by valve body 1, sealing base 2, elastomeric O-rings 3, pad 4, press female 5, fill out letter 6, valve rod 7 and handle and bulb etc. and form, sealing base 2 is between valve body 1 and valve rod 7, sealing base has outside thread respectively for outside upper and lower two sections, cone shape hole 8 is arranged on the inside, the bright and clean Seal cage of sidewall 9 is arranged down, sealing base hypomere outside thread and valve body internal thread suitable for reading is fastenedly connected, and has pad 7 to realize end face seal between sealing base and the end face suitable for reading; Valve rod 7 passes sealing base from inside to outside, and there is the parallel annular groove of twice at the position that is positioned at Seal cage on the valve rod 7, is with two elastomeric O-rings on it, and O type ring is subjected to valve rod and the extruding of Seal cage sidewall to realize the twice side seal; Press femalely 5 with having of matching of sealing base epimere outside thread, can fill letter 6 pressing between female interior edge face and the pedestal cone shape hole, realize the side sealing of another road as the teflin tape or the rope made of hemp etc.Need explanation, the valve body in the utility model, bulb and handle etc. are known technology, so do not describe in detail.

When using the utility model, the operating conditions in first road in the sealing of twice O type ring is relatively poor, and water temperature hydraulic pressure is all higher, and the operating conditions in second road is far better than first road, has therefore guaranteed comprehensive sealing and the durability that modulating valve is good.In a single day water clock appears in valve rod in using, and can press female 5 times winding fillers and with pressing mother to compress, just can solve the water clock problem fully.

Claims (2)

1, the modulating valve of band sealing base belongs to hot water system with manual three-way control valve technical field, by valve body 1, sealing base 2, elastomeric O-rings 3, pad 4, press mother 5, fill out letter 6, valve rod 7 and handle and bulb is formed, it is characterized in that:

A, sealing base 2 are between valve body 1 and valve rod 7, and sealing base has outside thread respectively for outside upper and lower two sections, and cone shape hole 8 is arranged on the inside, have the bright and clean Seal cage of sidewall 9, sealing base hypomere outside thread and valve body internal thread suitable for reading to be fastenedly connected down;

There is the twice annular groove at the position that is positioned at Seal cage on B, the valve rod 7, is with two elastomeric O-rings on it;

C, press femalely 5, can fill letter 6 pressing between female interior edge face and the pedestal cone shape hole with having of matching of sealing base epimere outside thread.

2, the modulating valve of band sealing base according to claim 1 is characterized in that: sealing base and valve rod are copper material.