CN201884696U

CN201884696U - Valve

Info

Publication number: CN201884696U
Application number: CN2010205900494U
Authority: CN
Inventors: 苏志军
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-04
Filing date: 2010-11-04
Publication date: 2011-06-29
Anticipated expiration: 2020-11-04

Abstract

The utility model discloses a valve, which is characterized in that: a valve seat is a cylinder body which is provided with a conical through hole with large upper part and small lower part, wherein the side wall of the valve seat is provided with an outlet passage which is communicated with the conical through hole; the upper end of the valve seat is connected with a valve cover through threads, the lower end of a valve rod is a valve plug part of a cone shape corresponding to the conical through hole of the valve seat, the valve plug part is installed inside the conical through hole of the valve seat, the middle part of the valve rod is connected with the valve cover through threads, the upper end of the valve rod extends out of the upper end of the valve cover, the upper part of the valve cover is connected with a gland through threads, the part on the lower part of the gland which stretches into the valve cover is sleeved outside the valve rod, a sealing material is arranged between the lower part of the gland and the valve rod, and a sealing ring is installed between the lower end of the gland and the valve cover. Compared with the present similar technology, the valve has the advantages of good closing sealability and precise valve opening control.

Description

Valve

Technical field

The utility model relates to technical field of valve manufacturing, especially a kind of valve that is used for current, air-flow open and close and flow control.

Background technique

Existing valve, depotition cock especially used in everyday has two kinds of forms: a kind of is diaphragm type,, diaphragm of rubber is tightened in the water inlet can realizes blocking current as the medium by current with diaphragm of rubber; Another kind is a blade-rotation, dams realizing with the dividing plate shutoff water intake of sheet.These two kinds of valves all are to seal with the plane, and water intake promptly is water outlet in fact, and its sealing effect is poor, easily leaks; In addition, the valve of diaphragm type is subjected to twisting certainly will producing when pressing at diaphragm of rubber and stretches and torsional deformation, and diaphragm of rubber very easily damages, and also can cause poor sealing.

Summary of the invention

Problem to be solved in the utility model provides a kind of valve, and it can solve the water clock problem of existing water tap.

In order to address the above problem, the technical solution adopted in the utility model is: this valve includes valve seat, valve gap, valve stem part, described valve seat is the tubular object that inside is provided with up big and down small conical through-hole, and this valve seat sidewall is provided with the outlet passage that is communicated with described conical through-hole; The upper end of this valve seat is by the described valve gap that has been threaded, described valve rod lower end is the valve plug portion with the corresponding cone shape of described valve seat conical through-hole, this valve plug portion is contained in the conical through-hole of described valve seat, the middle part of described valve rod is connected with described valve gap by screw thread, outside, described valve gap upper end is stretched out in the upper end of this valve rod, the top of described valve gap is by the gland that has been threaded, the part that described gland bottom is stretched in the described valve gap is enclosed within outside the described valve rod, between described gland bottom and described valve rod, sealing material is housed, between described gland lower end and described valve gap seal ring is housed, the valve rod hole opening of described valve seat lower end is equipped with the seal ring that rises the crimping sealing for the valve plug portion of described valve rod.

The upper end portion of above-mentioned valve rod is provided with the connection screw in can being, outer side surface has the handle on plane or the inserting section that handwheel connects; Described valve seat lower end surface is provided with closure gasket groove.

Owing to adopted technique scheme, the utility model compared with prior art has following beneficial effect:

1, good seal performance.Valve seat and valve plug adopt taper hole and cone to cooperate, can be so that this valve obtain excellent sealing performance in off position, and the water clock of anti-sealing or the leakage of air-flow.

2, open valve control accurately.Adopt the structure that is threaded by valve rod with valve gap, cooperate valve seat and valve plug to adopt taper hole and cone to cooperate, make the open degree of valve can obtain accurate control, to obtain needed emergency degree different current or air-flow.

Description of drawings

Fig. 1 is the utility model embodiment's a structural representation.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing enforcement:

Valve shown in Figure 1 is by valve rod 1, gland 2, valve gap 3, valve seat 4, and sealing strip 5 and seal ring 6,7 constitute.

Valve seat 4 is tubular objects that inside is provided with up big and down small conical through-hole, and its lower end surface is provided with closure gasket groove.Valve seat 4 sidewalls are distributed with 4 cross settings, are communicated with the exhalant canal of described conical through-hole, the upper end of valve seat 4 is connected with valve gap 3 by screw thread, the lower end of valve rod 1 is the valve plug portion with the corresponding cone shape of conical through-hole of valve seat 4, this valve plug portion is contained in the conical through-hole of valve seat 4, the middle part of valve rod 1 is connected with valve gap 3 by screw thread, the outside, upper end of valve gap 3 and gland 2 is stretched out in the upper end of valve rod 1, be provided with the connection screw in the upper end of valve rod 1, the outside, the upper end mask of valve rod 1 is the water chestnut cylinder that is surrounded by a plurality of planes, is used for being connected with handwheel.The top of valve gap 3 is by the gland 2 that is being threaded, gland 2 bottoms are cylindrical shell, the part that this part cylindrical shell stretches in the valve gap 3 is enclosed within outside the valve rod 1, between gland 2 bottoms and valve rod 1, sealing material is housed, the sealing material is a sealing strip 5, between gland 2 lower ends and valve gap 3 seal ring 6 is housed, the valve rod hole opening of valve seat 3 lower ends is equipped with the seal ring 7 that rises the crimping sealing for the valve plug portion of described valve rod 1.

Claims

1. a valve includes valve seat (4), valve gap (3), and valve rod (1) is characterized in that: described valve seat (4) is the tubular object that inside is provided with up big and down small conical through-hole, this valve seat (4) sidewall is provided with the outlet passage that is communicated with described conical through-hole; The upper end of this valve seat (4) is by the described valve gap (3) that has been threaded, described valve rod (1) lower end is the valve plug portion with the corresponding cone shape of described valve seat conical through-hole, this valve plug portion is contained in the conical through-hole of described valve seat (4), the middle part of described valve rod (1) is connected with described valve gap (3) by screw thread, outside, described valve gap (3) upper end is stretched out in the upper end of this valve rod (1), the top of described valve gap (3) is by the gland that has been threaded (2), the part that described gland (2) bottom is stretched in the described valve gap (3) is enclosed within outside the described valve rod (1), between described gland (2) bottom and described valve rod (1), sealing material is housed, between described gland (2) lower end and described valve gap (3), seal ring (6) is housed; The valve rod hole opening of described valve gap (3) lower end is equipped with the seal ring (7) that rises the crimping sealing for the valve plug portion of described valve rod (1).

2. valve according to claim 1 is characterized in that: the upper end portion of described valve rod (1) is to be provided with the connection screw in having, and the handle that outer side surface has the plane connects inserting section; Described valve seat (4) lower end surface is provided with closure gasket groove.