CN213064849U

CN213064849U - Valve sealing element with high sealing performance

Info

Publication number: CN213064849U
Application number: CN202020795016.7U
Authority: CN
Inventors: 曹阳
Original assignee: Xinghua Sanshi Casting Co ltd
Current assignee: Xinghua Sanshi Casting Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2021-04-27
Anticipated expiration: 2030-05-14

Abstract

The utility model relates to the technical field of sealing elements, and discloses a high-sealing valve sealing element, which comprises a sealing sleeve and a valve rod, wherein the sealing sleeve is arranged at the inner upper end of a valve seat, the valve rod penetrates through the sealing sleeve to be connected with a valve ball, a sealing material is filled between the sealing sleeve and the valve rod, a sealing rubber ring is sleeved at the outer side of the lower end of the sealing sleeve, fasteners are arranged at the outer side of the sealing rubber ring, the sealing sleeve, the sealing rubber ring and the fasteners are respectively arranged in two numbers and are symmetrically arranged about the valve ball axis, the lower end of the sealing sleeve is closely attached to the upper end of the valve ball but not connected with each other, the high-sealing valve sealing element is suitable for realizing good sealing effect by arranging the sealing sleeve, the sealing material, the fasteners and the sealing rubber ring and utilizing the mutual matching effect among the sealing sleeve, the sealing material, the fasteners, can effectively prevent the permeation of water at the position of the valve ball, and has simple structure, low manufacturing cost and strong practicability.

Description

Valve sealing element with high sealing performance

Technical Field

The utility model relates to the technical field of valves, specifically be a valve seal spare of high leakproofness.

Background

Valves are pipe fittings for opening and closing pipes, controlling flow direction, regulating and controlling parameters (temperature, pressure and flow) of a conveying medium, and the components of the valves relate to sealing elements.

The existing valve sealing element is poor in sealing effect when in use, cannot effectively prevent the occurrence of rusting due to the permeation of water at the position of a valve ball, and is shortened in service life, complex in structure, high in manufacturing cost and weak in practicability, so that the defects are overcome by the aid of the high-sealing valve sealing element.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a valve seal spare of high leakproofness has solved current valve seal spare, and when using, sealed effect is poor, secondly can't effectually prevent the infiltration of valve ball department water and lead to the emergence of the condition of rustting, has shortened life, and the structure is complicated, and manufacturing cost is high, problem that the practicality is weak.

The utility model provides a following technical scheme: the utility model provides a valve seal spare of high leakproofness, includes sealing sleeve and valve rod, sealing sleeve sets up the inside upper end at the disk seat, the valve rod runs through to be connected with the valve ball through sealing sleeve, it has sealing material to fill between sealing sleeve and the valve rod, sealing sleeve's lower extreme outside cover is equipped with the sealing rubber circle, the outside of sealing rubber circle is provided with the fastener.

Preferably, the number of the sealing sleeve, the sealing rubber ring and the fastener is two, and the sealing sleeve, the sealing rubber ring and the fastener are symmetrically arranged around the valve ball shaft.

Preferably, a flow through hole is formed in the valve ball, and the cross section of the flow through hole is square.

Preferably, the lower end of the sealing sleeve is in close proximity to, but not connected to, the upper end of the ball.

Preferably, the fastener is of annular configuration.

Compared with the prior art, the utility model discloses possess following beneficial effect:

this valve seal spare suitable for a high leakproofness through setting up sealed sleeve, sealing material, fastener and sealing rubber circle, utilizes the interact between them to can realize good sealed effect, secondly can effectually prevent the infiltration of valve ball department water and lead to the emergence of the condition of rustting, prolonged life, and sealing performance is strong, simple structure, low in manufacturing cost, the practicality is strong.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the valve ball of the present invention;

fig. 3 is a schematic structural view of the sealing rubber ring of the present invention;

fig. 4 is a schematic structural view of the sealing sleeve of the present invention;

fig. 5 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a valve seat; 2. a water inlet; 3. a water outlet; 4. a valve stem; 5. a sealing material; 6. a sealing sleeve; 7. a flow port; 8. a valve ball; 9. a fastener; 10. and sealing the rubber ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a high-sealing valve sealing member comprises a sealing sleeve 6 and a valve rod 4, wherein the sealing sleeve 6 is arranged at the upper end inside a valve seat 1, the left end of the valve seat 1 is provided with a water inlet 2, the right end of the valve seat 1 is provided with a water outlet 3, the valve rod 4 is connected with a valve ball 8 through the sealing sleeve 6, a sealing material 5 is filled between the sealing sleeve 6 and the valve rod 4, the outer side of the lower end of the sealing sleeve 6 is sleeved with a sealing rubber ring 10, the outer side of the sealing rubber ring 10 is provided with a fastening piece 9, the sealing sleeve 6, the sealing rubber ring 10 and the fastening piece 9 are respectively arranged in two numbers and are respectively arranged in axial symmetry with the valve ball 8, and by utilizing the mutual cooperation between the sealing effect, good sealing effect can be realized, and then the occurrence of rusting caused by the permeation of water at the valve ball 8 can be, the cross section of the flow port 7 is square, the lower end of the sealing sleeve 6 is tightly attached to but not connected with the upper end of the valve ball 8, and the fastening piece 9 is of an annular structure.

The utility model discloses a theory of operation and use flow: when water enters from water inlet 2 of 1 left end of disk seat, drive valve ball 8 through valve rod 4 and rotate, make valve ball 8 rotate when a certain position, flow opening 7 just in time can flow water to delivery port 3, when closing the valve, then rotate valve ball 8, make flow opening 7 and rivers direction mutually perpendicular, sealing sleeve 6 seals valve ball 8 this moment, sealing rubber circle 10 seals 6 departments of sealing sleeve, annular fastener 9 compresses tightly sealing rubber circle 10, it has sealing material 5 to carry out the efficient to valve rod 4 department to fill between sealing sleeve 6 and the valve rod 4 and seals.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high-tightness valve seal comprising a sealing sleeve (6) and a valve stem (4), characterized in that; sealing sleeve (6) set up the inside upper end at disk seat (1), valve rod (4) run through and are connected with valve ball (8) through sealing sleeve (6), it has sealing material (5) to fill between sealing sleeve (6) and valve rod (4), the lower extreme outside cover of sealing sleeve (6) is equipped with sealing rubber circle (10), the outside of sealing rubber circle (10) is provided with fastener (9).

2. A high-sealability valve seal member according to claim 1 wherein: the sealing sleeve (6), the sealing rubber ring (10) and the fasteners (9) are all arranged in two numbers and are all arranged in axial symmetry relative to the valve ball (8).

3. A high-sealability valve seal member according to claim 1 wherein: the valve ball (8) is provided with a flow through opening (7), and the cross section of the flow through opening (7) is square.

4. A high-sealability valve seal member according to claim 1 wherein: the lower end of the sealing sleeve (6) is tightly attached to but not connected with the upper end of the valve ball (8).

5. A high-sealability valve seal member according to claim 1 wherein: the fastener (9) is of an annular structure.