CN202144887U

CN202144887U - Ball check valve

Info

Publication number: CN202144887U
Application number: CN201120209348U
Authority: CN
Inventors: 孙述全
Original assignee: Wuhu Jinmao Liquid Science and Technolgoy Co Ltd
Current assignee: Wuhu Jinmao Liquid Science and Technolgoy Co Ltd
Priority date: 2011-06-21
Filing date: 2011-06-21
Publication date: 2012-02-15
Anticipated expiration: 2021-06-21

Abstract

The utility model discloses a ball check valve. A ball valve flap is placed into the ball check valve from an opening on the top end of the valve body, and the ball valve flap moves upwards along an inclined slideway under fluid pressure to open a the valve. Fluid flows from the inlet side towards the outlet side. When the pressure at the inlet side is lower than that at the outlet side, the ball valve flap automatically closes a valve port under the fluid difference and gravity to prevent fluid backflow. Moreover, a first bolt of the ball check valve seals an opening at the lower end of the valve body. The opening can be opened if necessarily.

Description

Ball check valve

Technical field

The utility model relates to a kind of safety check, particularly relates to a kind of ball check valve that adopts globe disk.

Background technique

Safety check is meant that flap leans on the thrust of media flow generation to open voluntarily or closing passage, and with the valve that prevents that medium from flowing backwards, safety check is mainly used on the pipeline of medium one-way flow, only allows medium to flow to a direction, to try to avert accidents.And ball check valve is meant that the safety check that adopts ball to do flap, its principle are under the thrust that media flow produces, and globe disk can roll by the slideway upper edge direction initialization in valve body, thereby realizes opening or closing the effect of valve through this globe disk.Ball check valve is when proper functioning, and fluid flows to outlet side from suction side; When suction side pressure was lower than outlet side, flap automatic close preventing fluid under factor effects such as fluid pressure difference, gravity own flow backwards.But, ball check valve in use for some time, valve inner can produce some dirts and be difficult to and cleans, in addition, the sealing of the structural design of valve body during to its actual use itself can produce material impact.Therefore, to existing ball check valve, need improve to overcome above defective himself structure.

Summary of the invention

The utility model technical problem to be solved is, a kind of ball check valve is provided, and it has better sealing, and can clean its inside dirt very easily.

For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of ball check valve, and this safety check comprises: valve body; In addition, also comprise: first bolt, it is used to seal the opening of said valve body lower end, and this first bolt has first pad; Spheroid, its opening from said valve body upper end is put into, and this spheroid can move in oblique slideway; Valve gap, the opening that it is used to seal said valve body upper end is placed with the O RunddichtringO between this valve gap and the opening.

In the described ball check valve, the opening of said valve gap and said valve body upper end is through second bolt, and this second bolt has second pad.

The utility model has the advantages that the utility model ball check valve is put into globe disk from said valve body open upper end, oblique slideway moves upward with Open valve the globe disk of safety check in the fluid pressure action lower edge, and fluid flows to outlet side from suction side; When suction side pressure is lower than outlet side, globe disk at factor effect lower edge oblique slideway self acting stop valve mouth such as fluid pressure difference, gravity own in case fluid flow backwards.In addition, first bolt in this ball check valve is used to seal the opening of said valve body lower end, can open this opening when needing.

Description of drawings

Fig. 1 is the side view of valve body in the utility model ball check valve;

Fig. 2 is the plan view of valve body in the utility model ball check valve;

Fig. 3 be in the utility model ball check valve valve body along the sectional view of A-A line;

Fig. 4 is the sectional view of the utility model ball check valve along the A-A line;

Fig. 5 is the structure structure schematic representation of valve gap in the utility model ball check valve.

Embodiment

For further disclosing the technological scheme of the utility model, be described with reference to the accompanying drawings the mode of execution of the utility model now.

Fig. 1 is the side view of valve body in the utility model ball check valve; Fig. 2 is the plan view of valve body in the utility model ball check valve; Fig. 3 is that valve body is along the sectional view of A-A line in the utility model ball check valve, and Fig. 4 is the sectional view of the utility model ball check valve along the A-A line, and Fig. 5 is the structure structure schematic representation of valve gap in the utility model ball check valve; Among the figure, comprising: valve body 8; In addition, also comprise: first bolt 1, it is used to seal the opening 10 of said valve body 8 lower ends, and this first bolt 1 has first pad 2; Spheroid 3, its opening 9 from said valve body 8 upper ends is put into, and this spheroid 3 can move in oblique slideway; Valve gap 5, it is used to seal the opening 9 of said valve body 8 upper ends, is placed with O RunddichtringO 4 between this valve gap 5 and the opening 9.

More particularly, said valve gap 5 is fixing through second bolt 6 with the opening 9 of said valve body 8 upper ends, and this second bolt 6 has second pad 7.

During work, put into globe disk 3 (being above-mentioned " spheroid ") from said valve body open upper end 9, oblique slideway moves upward with Open valve the globe disk 3 of safety check in the fluid pressure action lower edge, and fluid flows to outlet side from suction side; When suction side pressure is lower than outlet side, globe disk 3 at factor effect lower edge oblique slideway self acting stop valve mouth such as fluid pressure difference, gravity own in case fluid flow backwards.In addition, first bolt 1 in this ball check valve is used to seal the opening of said valve body lower end, can open this opening when needing.

More than, the basic design and the basic principle of the utility model have been set forth through introduction to listed mode of execution.But the utility model never is limited to above-mentioned listed mode of execution, and every equivalent variations, improvement of doing based on the technological scheme of the utility model reaches and deliberately become of inferior quality behavior, all should belong to the protection domain of the utility model.

Claims

1. ball check valve, this safety check comprises: valve body (8); It is characterized in that, also comprise: first bolt (1), it is used to seal the opening (10) of said valve body (8) lower end, and this first bolt (1) has first pad (2); Spheroid (3), its opening (9) from said valve body (8) upper end is put into, and this spheroid (3) can move in oblique slideway; Valve gap (5), the opening (9) that it is used to seal said valve body (8) upper end is placed with O RunddichtringO (4) between this valve gap (5) and the opening (9).

2. ball check valve according to claim 1 is characterized in that, said valve gap (5) is fixing through second bolt (6) with the opening (9) of said valve body (8) upper end, and this second bolt (6) has second pad (7).