CN217927431U

CN217927431U - Valve stem nut with quick connection structure

Info

Publication number: CN217927431U
Application number: CN202221412311.5U
Authority: CN
Inventors: 李志龙
Original assignee: Taizhou Wanxin Pump Valve Accessories Co ltd
Current assignee: Taizhou Wanxin Pump Valve Accessories Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-11-29
Anticipated expiration: 2032-06-08

Abstract

The utility model discloses a valve rod nut with quick connection structure, including nut steel bushing and valve nut, the lower extreme of nut steel bushing is provided with rather than coaxial support base, the nut steel bushing is provided with split type joint's go-between and support ring respectively with the one end side that supports the base and is close to mutually, the lower extreme of nut steel bushing inner peripheral surface is provided with the connection annular with the valve nut adaptation, connection annular cross section diameter is the same with the cross section diameter that supports the base inner peripheral surface, the one end that connection annular and support base inner peripheral surface are close to mutually is provided with gomphosis recess and lower gomphosis recess respectively along annular equidistance, the valve nut outer peripheral surface is provided with the gomphosis boss in upper gomphosis recess and lower gomphosis recess with gomphosis; the utility model discloses a nut steel bushing, valve nut and the high-speed joint of support between the base, easy operation have improved valve-stem nut's connection rate.

Description

Valve stem nut with quick connection structure

Technical Field

The utility model relates to a valve-stem nut field especially relates to valve-stem nut with quick connect structure.

Background

The valve rod nut consists of a nut cap and a nut rod; set up dustproof seal groove in the nut cap, the nut pole inner peripheral surface sets gradually upper and lower annular recess, and the nut pole outer peripheral surface sets up annular recess, and valve-stem nut has certain intensity and compressive resistance, because valve-stem nut is the in-process of valve operation, and valve-stem nut is directly given to the dynamics of valve-stem shaft, and valve-stem nut and valve rod are along with screw thread rotation, and valve-stem nut's coefficient of friction is less, just so can avoid producing and sting or rusty phenomenon.

Among the prior art, the valve-stem nut structure is fairly simple, generally connects through the screw thread between split type valve-stem nut's the nut and the valve nut simultaneously, during the connection, needs the valve nut to twist soon along the nut inner peripheral surface with the help of appurtenance and connects, and the operation is more complicated, and the screw thread receives vibrations and easily becomes flexible and drops, reduces the connection stability between nut and the valve nut, for this reason, we provide the valve-stem nut who has quick connect structure.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a valve rod nut with quick connection structure to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: valve-stem nut with quick connect structure, including nut steel bushing and valve nut, the lower extreme of nut steel bushing is provided with rather than coaxial support base, the nut steel bushing is provided with the go-between and the support ring of split type joint respectively with the one end side that the support base is close to mutually, the lower extreme of nut steel bushing inner peripheral surface is provided with the connection annular with the valve nut adaptation, connection annular cross section diameter is the same with the cross section diameter that supports the base inner peripheral surface, the one end that connection annular and support base inner peripheral surface are close to mutually is provided with gomphosis recess and gomphosis recess down along annular equidistance respectively, the valve nut outer peripheral surface is provided with the gomphosis boss in last gomphosis recess and lower gomphosis recess with the gomphosis.

As a preferred technical scheme of the utility model, the lower extreme that supports the base inner peripheral surface is provided with the extension ring with the laminating of valve nut bottom side, and the cross section diameter that extends the intra-annular global is the same with nut steel bushing inner peripheral surface cross section diameter.

As an optimized technical scheme of the utility model, the valve nut goes up the downside and is connected the annular roof and extend and have sealed the pad with the gomphosis respectively between the ring upside.

As a preferred technical scheme of the utility model, the support ring upside has the spliced pole along annular equidistance rigid coupling, the inserting groove with the spliced pole adaptation is seted up along annular equidistance to the go-between downside, inserting groove one side upper end elastic connection has the gag lever post, the one end of inserting groove is provided with the spacing groove with the gag lever post adaptation.

As a preferred technical scheme of the utility model, the upper end is provided with the cavity in the grafting post, gag lever post one end slide extend to the cavity in and with the cavity between distolateral rigid coupling have supporting spring.

As a preferred technical scheme of the utility model, go up the connecting ring week and week side and be provided with the through-hole that communicates with the spacing groove along annular equidistance, and the outer end of through-hole is provided with the sealing plug.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

the utility model discloses a connecting ring groove that sets up at the gomphosis boss cooperation nut steel bushing inner peripheral surface that the valve nut outer peripheral face set up, go up the gomphosis recess and support the use of the lower gomphosis recess that the base inner peripheral surface set up, realize the gomphosis installation to valve nut, the joint installation of cooperation go-between and support ring simultaneously realizes nut steel bushing, valve nut and supports the high-speed joint between the base, easy operation has improved valve nut's connection rate.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the connection structure of the connection and support ring of the present invention;

fig. 3 is a schematic structural view of the valve nut of the present invention;

wherein: 1. a nut steel sleeve; 101. a connecting ring; 102. an upper embedding groove; 103. a connecting ring groove; 2. a support base; 201. an extension ring; 202. a lower engaging groove; 203. a support ring; 3. a gasket; 4. inserting the columns; 5. a limiting rod; 6. a cavity; 7. a support spring; 8. inserting grooves; 9. a limiting groove; 10. a through hole; 11. a sealing plug; 12. a valve nut; 121. and (4) embedding the lug boss.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1 and fig. 3, the utility model provides a valve stem nut with quick connection structure, including nut steel bushing 1 and valve nut 12, the lower extreme of nut steel bushing 1 is provided with rather than coaxial support base 2, nut steel bushing 1 and support base 2 are close to one end side be provided with go-between 101 and support ring 203 of split type joint respectively, go-between 101 and support ring 203 are connected with nut steel bushing 1 and support base 2 as an organic whole respectively, the lower extreme of the inner peripheral surface of nut steel bushing 1 is provided with the connection annular groove 103 with the valve nut 12 adaptation, the diameter of the cross section of connection annular groove 103 is the same with the diameter of the cross section of the inner peripheral surface of support base 2, the one end that connection annular groove 103 and support base 2 inner peripheral surface are close to is provided with upper gomphosis recess 102 and lower gomphosis recess 202 along annular equidistance respectively, the valve nut 12 outer peripheral surface is provided with gomphosis boss 121 in upper gomphosis recess 102 and lower gomphosis recess 202 with the gomphosis, gomphosis boss 121 and valve nut 12 are the integral type structure;

in this embodiment, when the stem nut is connected, first, the fitting boss 121 is aligned with the upper fitting groove 102, then the upper end of the valve nut 12 is slid upward along the surface of the connection ring groove 103 on the inner circumferential surface of the nut steel sleeve 1 until the upper side of the valve nut 12 is fitted with the movable top wall of the connection ring groove 103, meanwhile, the upper end of the fitting boss 121 is fitted into the upper fitting groove 102, then the lower end of the lower fitting groove 202 is aligned with the fitting boss 121, the support base 2 is slid upward along the outer circumferential surface of the lower end of the valve nut 12 until the lower fitting groove 202 is fitted into the lower end of the fitting boss 121, meanwhile, the connection ring 101 is fitted and clamped with the support ring 203, thereby completing the connection of the stem nut, and the fitting of the fitting boss 121 and the lower fitting groove 202 realizes the fitting of the fitting boss 121, further realizing the limit connection of the valve nut 12, the operation is simple, and the connection rate of the stem nut is improved.

As shown in fig. 1, the embodiment discloses that the lower end of the inner peripheral surface of the support base 2 is provided with an extension ring 201 attached to the bottom side of the valve nut 12, and the cross-sectional diameter of the inner peripheral surface of the extension ring 201 is the same as that of the inner peripheral surface of the nut steel sleeve 1;

in this embodiment, the bottom side of the valve nut 12 is supported by the extension ring 201, so that the valve nut 12 can be tightly embedded in the connection ring groove 103 and the support base 2, thereby improving the connection stability of the stem nut.

As shown in fig. 1, in the embodiment, the sealing gaskets 3 are respectively embedded between the upper side and the lower side of the valve nut 12 and the top wall of the connecting ring groove 103 and the upper side of the extension ring 201;

in this embodiment, the sealing gasket 3 is disposed between the upper and lower sides of the valve nut 12 and the top wall of the connecting ring groove 103 and the upper side of the extending ring 201, so as to improve the sealing performance between the valve nut 12 and the nut steel sleeve 1 and between the valve nut and the supporting base 2.

As shown in fig. 2, in the embodiment, the upper side of the support ring 203 is fixedly connected with the splicing columns 4 at equal intervals along the ring shape, the lower side of the connection ring 101 is provided with the splicing grooves 8 adapted to the splicing columns 4 at equal intervals along the ring shape, the upper end of one side of each splicing groove 8 is elastically connected with the limiting rod 5, and one end of each splicing groove 8 is provided with the limiting groove 9 adapted to the limiting rod 5;

in this embodiment, when the joint ring 101 and the support ring 203 are jointed and clamped, the splicing column 4 is firstly moved to the splicing groove 8, so that the support base 2 is transversely limited, meanwhile, the limiting rod 5 extends to the limiting groove 9, so that the support base 2 is longitudinally limited, the joint ring 101 and the support ring 203 are clamped, and the stability is high.

As shown in fig. 2, in the embodiment, a cavity 6 is disposed at an inner upper end of the insertion column 4, one end of the limiting rod 5 slidably extends into the cavity 6, and a supporting spring 7 is fixedly connected between the limiting rod and the end side of the cavity 6;

in this embodiment, when inserting post 4 extends in inserting groove 8, at first press down gag lever post 5 toward cavity 6 in, gag lever post 5 receives pressure and stretches out and draws back toward cavity 6 in, to supporting spring 7 pressurization extrusion shrink simultaneously, when inserting post 4 removed to inserting groove 8 in, gag lever post 5 is located the one end of spacing groove 9, then drives gag lever post 5 through supporting spring 7 self elasticity and removes to spacing groove 9 in, realizes the fore-and-aft spacing of inserting post 4.

As shown in fig. 2, the embodiment discloses that the circumferential side of the connecting ring 101 is provided with through holes 10 at equal intervals along a ring shape, the through holes 10 are communicated with the limiting grooves 9, and the outer ends of the through holes 10 are provided with sealing plugs 11;

in this embodiment, when dismantling valve-stem nut, at first the cooperation is pressed the pressure lever and is extended to spacing groove 9 through-hole 10 in, and exert pressure to spacing groove 9, spacing groove 9 receives pressure to remove to cavity 6 in, removes to the fore-and-aft spacing of grafting post 4, then down removes support base 2 again, support base 2 and drive grafting post 4 and down remove, then down remove valve-stem nut 12 again, realize valve-stem nut's dismantlement, and then be convenient for to valve-stem nut's maintenance.

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. Valve-stem nut with quick-connect structure, including nut steel bushing (1) and valve nut (12), its characterized in that: the lower extreme of nut steel bushing (1) is provided with rather than coaxial support base (2), nut steel bushing (1) and support base (2) one end side that is close to are provided with go-between (101) and support ring (203) of split type joint respectively, the lower extreme of nut steel bushing (1) inner peripheral surface is provided with connection annular (103) with valve nut (12) adaptation, connection annular (103) cross section diameter is the same with the cross section diameter of supporting base (2) inner peripheral surface, the one end that connection annular (103) and support base (2) inner peripheral surface are close to is provided with gomphosis recess (102) and gomphosis recess (202) down along annular equidistance respectively, valve nut (12) outer peripheral face is provided with gomphosis boss (121) in last gomphosis recess (102) and lower gomphosis recess (202) with the gomphosis.

2. The valve stem nut having a quick connect construction of claim 1 wherein: the lower end of the inner peripheral surface of the support base (2) is provided with an extension ring (201) attached to the bottom side of the valve nut (12), and the diameter of the cross section of the inner peripheral surface of the extension ring (201) is the same as that of the cross section of the inner peripheral surface of the nut steel sleeve (1).

3. The valve stem nut having a quick connect construction of claim 1 wherein: and sealing gaskets (3) are respectively embedded between the upper side and the lower side of the valve nut (12) and the top wall of the connecting ring groove (103) and the upper side of the extension ring (201).

4. The valve stem nut having a quick connect construction of claim 1 wherein: support ring (203) upside has spliced pole (4) along annular equidistance rigid coupling, go-between (101) downside is seted up spliced groove (8) with spliced pole (4) adaptation along annular equidistance, spliced groove (8) one side upper end elastic connection has gag lever post (5), the one end of spliced groove (8) is provided with spacing groove (9) with gag lever post (5) adaptation.

5. The valve stem nut with quick connect construction as claimed in claim 4, wherein: the upper end in the inserting column (4) is provided with a cavity (6), one end of the limiting rod (5) extends into the cavity (6) in a sliding mode, and a supporting spring (7) is fixedly connected between the limiting rod and the end side of the cavity (6).

6. The valve stem nut having a quick connect construction of claim 5 wherein: the periphery of the connecting ring (101) is provided with through holes (10) communicated with the limiting grooves (9) along the annular equal distance, and the outer ends of the through holes (10) are provided with sealing plugs (11).