CN201043624Y

CN201043624Y - Integral check value

Info

Publication number: CN201043624Y
Application number: CNU200720037169XU
Authority: CN
Inventors: 邱晓来; 王汉洲; 黄明金
Original assignee: ZHEJIANG CHAODA VALVE CO Ltd
Current assignee: Chaoda Valve Group Co., Ltd.
Priority date: 2007-04-27
Filing date: 2007-04-27
Publication date: 2008-04-02
Anticipated expiration: 2017-04-27

Abstract

The utility model relates to a built check valve comprising a valve body, a valve axis, a valve flap, a location axis and a torsional spring. Both upper and lower side of the inside wall of the valve body are connected with a location plate being suitable for the inside wall of the valve body, both ends of the valve axis and the location axis are connected with the location plate. Compared to the existing technology, the valve body does not need threaded holes which avoids leakage, meanwhile, the structure of a location plate in the inner wall of the valve body which fixed the valve axils and the location axial belongs to a built structure which makes sure of the normal operation of the check valve, thereby, the built check valve has good sealing and leakage is not easy to happen.

Description

A kind of integral check valve

Technical field

The utility model relates to a kind of valve, relates in particular to a kind of integral check valve.

Background technique

As shown in Figure 1, 2, 3, external mounted safety check of the prior art is made up of valve body, valve shaft, flap, positioning shaft, torsion spring, spacer ring, hexagonal spiro plug, pad etc., vertically offer two screws of perforation in the upper and lower bilateral symmetry of valve interior wall, valve shaft and positioning shaft two ends place respectively in the corresponding screw, hexagonal spiro plug screws in from the screw outer end to constitute and is threaded, Here it is so-called external mounted, refer to be exactly the assembly relation of valve shaft and positioning shaft and valve body be outer dress.This safety check is when work, medium is to pass through from body cavity always, because the screw on the inwall exists, medium can enter into screw, and hexagonal spiro plug is to be threaded with screw, has the gap between the two, and medium can flow out from screw, the valve seal decreased performance causes unnecessary loss.

Summary of the invention

The purpose of this utility model is to provide a kind of integral check valve of good airproof performance at not enough defective of the prior art.

For achieving the above object, the utility model adopts a kind of integral check valve, comprise valve body, valve shaft, flap, positioning shaft, torsion spring, in the upper and lower both sides of valve interior wall each fixedly connected one with the suitable positioning plate of valve interior wall, the two ends of valve shaft and positioning shaft are fixedly connected on the positioning plate.

This practicality further is set to positioning plate and has upper wall, lower wall, two sidewalls, rear wall, antetheca, on itself and valve body close neighbour's rear wall, longitudinally form spacing block set, spacing block set constitutes spacing the cooperation with the spacing shrinkage pool of valve body corresponding section, between the upper and lower wall of positioning plate, form through hole, locating stud is placed in the through hole, and constitutes the location with the location shrinkage pool of the corresponding section of valve body and cooperate.

This practicality further be set to form side by side on the upper wall of positioning plate two with the suitable positioning hole in the two ends of valve shaft and positioning shaft, wherein promptly form by the through hole on the positioning plate with the suitable positioning hole of positioning shaft, in the side of this positioning hole, promptly the antetheca place of positioning plate forms breach.

This practicality further is set to also be provided with between positioning shaft and the positioning plate location piece, location piece is a sheet metal part, respectively be vertically installed with three walls on its three walls and constitute spacing spacing catch with positioning plate, centre at location piece offers spacing hole, the two ends of positioning shaft all form with location piece on spacing hole and the suitable wedge type block of the positioning hole on the positioning plate.

Fixed end and the positioning hole on the positioning plate that this practicality further is set to valve shaft again constitute Spielpassung.

The utility model is by providing a kind of integral check valve, in the upper and lower both sides of valve interior wall each fixedly connected one with the suitable positioning plate of valve interior wall, the two ends of valve shaft and positioning shaft are fixedly connected on the positioning plate, compared with prior art, not be used in screw is set on the valve body, avoided valve body to reveal, valve shaft and positioning shaft are fixed on the valve body in that positioning plate is set on the valve interior wall simultaneously, belong to the built-in type structure, guaranteed the proper functioning of safety check, therefore the good airproof performance of this integral check valve is difficult for taking place valve body and reveals.

Description of drawings

Fig. 1 is the utility model background technique structural representation.

Fig. 2 overlooks for the utility model background technique and partly cuts open figure.

Fig. 3 is the I portion enlarged view of Fig. 1.

Fig. 4 is the utility model embodiment plan view.

Fig. 5 is the A-A sectional view of Fig. 4.

Fig. 6 is the utility model example structure exploded view.

Embodiment

As Fig. 4,5, shown in 6, this practical specific embodiment is a kind of integral check valve, comprise valve body 1, valve shaft 2, flap, positioning shaft 3, torsion spring, positioning plate 4, positioning plate 4 has upper wall 41, lower wall 42, two sidewalls 43, rear wall 44, antetheca 45, on itself and valve body 1 close neighbour's rear wall 44, longitudinally form spacing block set 46, spacing block set 46 constitutes spacing the cooperation with the spacing shrinkage pool 11 of valve body 1 corresponding section, on positioning plate 4, lower wall (41,42) form through hole 47 between, locating stud 5 is placed in the through hole 47, and constitute the location with the location shrinkage pool 12 of the corresponding section of valve body 1 and cooperate, form side by side on the upper wall 41 of positioning plate 4 two with the suitable positioning hole (48 in the two ends of valve shaft 2 and positioning shaft 3,49), the fixed end 21 and the positioning hole on the positioning plate 4 48 of valve shaft 2 constitute Spielpassung, wherein promptly form by the through hole on the positioning plate 4 47 with the suitable positioning hole 49 of positioning shaft 3, side at this positioning hole 4, antetheca 45 places that are positioning plate 4 form breach 451, also be provided with location piece 6 between positioning shaft 3 and the positioning plate 4, location piece 6 is a sheet metal part, respectively be vertically installed with three walls on its three walls and constitute spacing spacing catch 61 with positioning plate 4, offer spacing hole 62 in the centre of location piece 6, the two ends of positioning shaft 3 all form with location piece 6 on spacing hole 62 and the suitable wedge type block 31 of the positioning hole on the positioning plate 4 49.

Positioning plate 4 in the foregoing description has upper wall 41, lower wall 42, two sidewalls 43, rear wall 44, antetheca 45, show that positioning plate 4 is one and has certain thickness sheet metal, title relation as for each and every one wall, this can make adjustment according to the mounting point of reality in fact, can not be limited to some walls, because possible setting angle is different with installation position, title can be different.

Claims

1. integral check valve, comprise valve body (1), valve shaft (2), flap, positioning shaft (3), torsion spring, it is characterized in that: in the upper and lower both sides of valve body (1) inwall each fixedly connected one with the suitable positioning plate (4) of valve body (1) inwall, the two ends of valve shaft (2) and positioning shaft (3) are fixedly connected on the positioning plate (4).

2. integral check valve according to claim 1, it is characterized in that: described positioning plate (4) has upper wall (41), lower wall (42), two sidewalls (43), rear wall (44), antetheca (45), on itself and valve body (1) close neighbour's rear wall (44), longitudinally form spacing block set (46), spacing block set (46) constitutes spacing the cooperation with the spacing shrinkage pool (11) of valve body (1) corresponding section, on positioning plate (4), lower wall (41,42) form through hole (47) between, locating stud (5) is placed in the through hole (47), and constitutes the location with the location shrinkage pool (12) of the corresponding section of valve body (1) and cooperate.

3. integral check valve according to claim 1 and 2, it is characterized in that: form side by side on the upper wall (41) of described positioning plate (4) two with the suitable positioning hole (48,49) in the two ends of valve shaft (2) and positioning shaft (3), wherein promptly form by the through hole (47) on the positioning plate (4) with the suitable positioning hole (49) of positioning shaft (3), side in this positioning hole (4), promptly the antetheca (45) of positioning plate (4) locates to form breach (451).

4. integral check valve according to claim 1 and 2, it is characterized in that: also be provided with location piece (6) between described positioning shaft (3) and the positioning plate (4), location piece (6) is a sheet metal part, respectively be vertically installed with three walls on its three walls and constitute spacing spacing catch (61) with positioning plate (4), offer spacing hole (62) in the centre of location piece (6), the two ends of positioning shaft (3) all form with location piece (6) on spacing hole (62) and the suitable wedge type block (31) of the positioning hole (49) on the positioning plate (4).

5. integral check valve according to claim 3, it is characterized in that: also be provided with location piece (6) between described positioning shaft (3) and the positioning plate (4), location piece (6) is a sheet metal part, respectively be vertically installed with three walls on its three walls and constitute spacing spacing catch (61) with positioning plate (4), offer spacing hole (62) in the centre of location piece (6), the two ends of positioning shaft (3) all form with location piece (6) on spacing hole (62) and the suitable wedge type block (31) of the positioning hole (49) on the positioning plate (4).

6. according to claim 1 or 2 or 5 described integral check valves, it is characterized in that: the positioning hole (48) on the fixed end (21) of described valve shaft (2) and the positioning plate (4) constitutes Spielpassung.

7. integral check valve according to claim 3 is characterized in that: the positioning hole (48) on the fixed end (21) of described valve shaft (2) and the positioning plate (4) constitutes Spielpassung.