CN205278431U - Three -piece type ball valve - Google Patents

Abstract

The utility model discloses a three -piece type ball valve, include the valve body and be connected the end cover in the valve body both sides, the end cover has first boss towards perpendicular extension of a terminal surface of valve body, the terminal surface of valve body is equipped with the second boss with first boss butt of each other, wherein the first containing Groove has been seted up to the second boss, be provided with the bulge loop with the the first containing Groove joint on first boss, through first boss and the setting of second boss and the machining precision of butt reduction end cover of each other and valve body terminal surface, and improvement cooperation precision, the first boss of butt forms sealed face with the second boss when cooperating owing to higher roughness mutually, and it is sealed better to replace setting up of sealing washer at the bulge loop joint of first boss in the the first containing Groove of second boss, and manufacturing cost has been reduced, cooperation simultaneously forms a cylinder can avoid the global dirty around the cylindrical of rainwater, combine the joint of joint pipe in the valve body on the first boss further to carry high leakproofness.

Description

Three-chip type ball valve

Technical field

The utility model relates to a kind of valve, and more specifically, it relates to a kind of three-chip type ball valve.

Background technology

Chip ball valve generally comprises single piece type ball valve, two-chip type ball valve and three-chip type ball, and three structurally exists difference, and single piece type ball valve just comprises a valve body, and spherical valve core is in valve body, and this kind of ball valve is not easily dismantled; Two-chip type ball valve is worked in coordination fixing by main valve body and valve gap, compare the dismounting that single piece type realizes valve body, but manufacture difficulty height, install inconvenient, three-chip type ball valve is have developed for improving easy accessibility, three-chip type ball valve comprises middle main valve body and the left and right valve gap of main valve body both sides, and three is bolted to connection, and greatly improves the agility of dismounting.

Existing three-chip type ball valve such as comprises valve body (1) at a kind of three-chip type ball valve disclosed in the Chinese patent of application number 201420404646.1, it is connected to the end cap (2) at valve body (1) two ends, it is arranged on two valve seats (3) that valve body (1) is inner, the valve ball (4) being arranged on two valve seats (3), the valve rod (5) being connected with valve ball (4), lower filler (6) and upper filler (7) are installed between described valve body (1) and valve rod (5), upper filler (7) is provided with filler briquetting (8), filler briquetting (8) is provided with butterfly spring (9), butterfly spring (9) is provided with hold-down nut (10), the upper end of described valve rod (5) and handle (11) socket, handle (11) top is provided with set nut (12). this kind of three-chip type ball valve is reaching the problem simultaneously bringing stopping property of easy accessibility, due to the end face of end cap and the end face of valve body existing defects in the working accuracy of planeness when the end cap arranging valve body both sides coordinates with valve body, gap can be there is after both ends of the surface are coordinated, the pressure of bolt when mounted is fixing can make local, two ends protruding part extrusion abrasion mutually, can increase manufacturing cost and manufacturing time as improved working accuracy, next reduces the stopping property between valve gap and valve body, and a sealing-ring is set in above-mentioned documents between valve body and end cap to improve stopping property, and due to the flatness requirement between valve body and end cap higher, it is difficult to solve with a sealing-ring, and the increase of sealing-ring and then in turn increase manufacturing cost.

Practical novel content

For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of manufacturing cost, and the three-chip type ball valve that stopping property is extremely good.

For achieving the above object, the utility model provides following technical scheme: a kind of three-chip type ball valve, the end cap comprising valve body and be connected to valve body both sides, described end cap has the first boss towards the end face of valve body is extending vertically, the end face of described valve body is provided with the 2nd boss abutted against mutually with the first boss, wherein the first accommodating groove offered by the 2nd boss, is provided with the convex ring that accommodating groove card connects with first on the first boss.

By adopting technique scheme, the end face of end cap and valve body is respectively arranged with the first boss and the 2nd boss, only need when precision work to be processed by this two boss, other parts do not need through precision work, process period and working accuracy are saved, the first boss and the 2nd boss at two high-flatness abut against formation trim mutually, and cancel the setting of sealing-ring, it is connected in the first accommodating groove on the 2nd boss by the convex ring on the first boss and forms labyrinth seal, secondly two boss abutted against mutually make formation one cylinder, extraneous rainwater can flow down along the cylinder side face of described formation.

As preferably, described first boss being provided with the adapter of the card for being connected in valve body.

By adopting technique scheme, the card adapter that end cap is arranged is connected to and forms raising stopping property in ladder face in valve body and between valve body.

As preferably, described card is provided with the 2nd accommodating groove in taking over, and has valve seat at the 2nd accommodating groove internal fixtion.

By adopting technique scheme, valve seat is arranged in the 2nd accommodating groove on end cap and it is convenient to change when dismantling lower end cover valve seat.

As preferably, described valve seat is provided with valve ball, on valve body, it is equipped with valve rod and it is connected with valve ball, lower filler and upper filler are installed between described valve body and valve rod, upper filler is provided with filler briquetting filler briquetting, filler briquetting filler briquetting is provided with butterfly spring, and butterfly spring is provided with hold-down nut; The upper end of described valve rod and handle socket, handle upper portion is provided with set nut.

By adopting technique scheme, it is to increase the stopping property between valve body and valve rod.

As preferably, the end cap of described valve body and both sides is equipped with double end stud, described double end stud two ends have all been threaded nut.

By adopting technique scheme, threaded stud is adopted to replace the occasion that existing plain bolt is applicable to end cap and often dismantles, and after side end cap dismounting, the end cap of another side is also fixing with valve body is convenient to side dismounting.

Compared with prior art, the utility model has the advantage of: by the working accuracy arranging and abutting against mutually minimizing end cap and valve body end face of the first boss and the 2nd boss, and improve quality of fit, the first boss abutted against mutually and the 2nd boss are owing to forming trim when higher planeness coordinates, and the convex ring of the first boss be connected in the first accommodating groove of the 2nd boss to replace sealing-ring to arrange sealing better, and decrease manufacturing cost, coordinate formation one cylinder that the side face around cylinder of rainwater can be avoided dirty simultaneously, the card taken in valve body in conjunction with the card on the first boss connects and improves stopping property further.

Accompanying drawing explanation

Fig. 1 is the structural representation of three-chip type ball valve;

Fig. 2 is the exploded perspective view of three-chip type ball valve;

Fig. 3 be three-chip type ball valve cut open schematic diagram;

Fig. 4 is the A portion enlarged view of Fig. 3.

Accompanying drawing illustrates: 1, valve body; 11, the 2nd boss; 12, the first accommodating groove; 2, end cap; 21, the first boss; 22, card adapter; 23, the 2nd accommodating groove; 24, convex ring; 3, double end stud; 4, nut; 5, valve seat; 6, valve ball; 7, valve rod; 71, lower filler; 72, upper filler; 73, filler briquetting; 74, butterfly spring; 75, hold-down nut; 76, set nut; 8, handle.

Embodiment

Below in conjunction with accompanying drawing and be described in further detail practicality is novel by specific embodiment, following examples are descriptive, are not limited protection domains of the present utility model.

Composition graphs 1 and Fig. 2, a kind of three-chip type ball valve comprises the end cap 2 of valve body 1 with valve body 1 both sides, and two end cap 2 and valve body 1 are worn by double end stud 3, and is fixed by the nut 4 at double end stud 3 two ends.

Extending vertically on the end face of two end cap 2 towards valve body 1 have the first boss 21, on the end face of valve body 1, be provided with the 2nd boss 11 with the first boss 21 abuts against mutually, to end cap 2 with only need the first boss 21 and the 2nd boss 11 to be processed the time needed for decreasing planeness that processing area improves machined surface and processing during valve body 1 end face precision work. Being provided with card adapter 22 on the first boss 21, card adapter 22 is connected on the main flow road of valve body 1, avoid extraneous rainwater infiltrate and internal flow ooze out raising stopping property.

Card adapter 22 is provided with in the 2nd accommodating accommodating groove 23 of groove the 23, two and valve seat 5 is installed, be convenient to be pulled down by valve seat 5 when dismantling end cap 2 be easy to replacing simultaneously.

See Fig. 3, it is provided with valve ball 6 in two valve seats 5 in two end cap 2, valve ball 6 is connected with the valve rod 7 being located on valve body 1, lower filler 71 and upper filler 72 it is provided with between valve rod 7 and valve body 1, be provided with under filler briquetting 73 compresses the filler held in upper filler 72 upper end, filler briquetting 73 upper end is provided with butterfly spring 74, and butterfly spring 74 upper end is compressed by hold-down nut 75, being arranged with handle 8 on hold-down nut 75, handle 8 is fixed by a set nut 76.

See Fig. 4,2nd boss 11 has been offered the first accommodating groove 12, first boss 21 is provided with the accommodating groove 12 with first and blocks the convex ring 24 connect, when convex ring 24 groove 12 accommodating with first coordinates, whole first boss 21 and the 2nd boss 11 form the stopping property between labyrinth seal two boss and then improve the stopping property of end cap 2 with valve body 1.

The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model. It is noted that for those skilled in the art, in the some improvements and modifications not departed under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (5)

1. a three-chip type ball valve, the end cap (2) comprising valve body (1) and be connected to valve body (1) both sides, it is characterized in that, described end cap (2) has the first boss (21) towards the end face of valve body (1) is extending vertically, the end face of described valve body (1) is provided with the 2nd boss (11) abutted against mutually with the first boss (21), wherein the first accommodating groove (12) offered by the 2nd boss, is provided with the accommodating groove (12) with first and blocks the convex ring (24) connect on the first boss (21).

2. three-chip type ball valve according to claim 1, it is characterised in that, described first boss (21) is provided with the adapter of the card for being connected in valve body (1) (22).

3. three-chip type ball valve according to claim 2, it is characterised in that, it is provided with the 2nd accommodating groove (23) in described card adapter (22), has valve seat (5) at the 2nd accommodating groove (23) internal fixtion.

4. three-chip type ball valve according to claim 3, it is characterized in that, described valve seat (5) is provided with valve ball (6), on valve body (1), it is equipped with valve rod (7) and it is connected with valve ball (6), lower filler (71) and upper filler (72) are installed between described valve body (1) and valve rod (7), upper filler (72) is provided with filler briquetting (73) filler briquetting, filler briquetting (73) filler briquetting is provided with butterfly spring (74), and butterfly spring (74) is provided with hold-down nut (75); The upper end of described valve rod (7) and handle socket, handle upper portion is provided with set nut (76).

5. three-chip type ball valve according to claim 1, it is characterised in that, the end cap (2) of described valve body (1) and both sides is equipped with double end stud (3), and described double end stud (3) two ends have all been threaded nut (4).