CN218267579U

CN218267579U - Embedded valve rod nut

Info

Publication number: CN218267579U
Application number: CN202222631935.2U
Authority: CN
Inventors: 徐剑; 杨德钱; 徐航; 宋一波
Original assignee: Hangzhou New Time Valve Co ltd
Current assignee: Hangzhou New Time Valve Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-01-10
Anticipated expiration: 2032-10-08

Abstract

The utility model discloses an embedded valve-stem nut, it includes: a housing and an inner member; the shell is provided with a through mounting hole, the middle part of the shell is provided with a clamping groove matched with the periphery of the internal part, the shell is formed by buckling a first shell and a second shell up and down, the contact surfaces of the first shell and the second shell are positioned between the upper end and the lower end of the clamping groove, and the contact surfaces of the first shell and the second shell are both provided with extension tables along the circumferential direction; the inner part is clamped in the clamping groove and is provided with a threaded hole in a through manner along the axial direction; the utility model discloses a set up two segmentation structural shell, through with the joint of internals in shell one and two concatenation formation complete draw-in grooves of shell, through setting up the extension platform, increase the shell rather than fixed knot structure's area of contact, non-integral type structure is convenient for choose the internals and the shell of different materials for use according to the demand of difference, reduces manufacturing cost, perhaps improves product property ability, reduces to consume and improves economic efficiency.

Description

Embedded valve rod nut

Technical Field

The utility model relates to a nut technical field, in particular to embedded valve-stem nut.

Background

The valve rod nut consists of a nut cap and a nut rod; the nut cap is provided with a dustproof sealing groove, the inner peripheral surface of the nut rod is sequentially provided with an upper annular groove and a lower annular groove, and the outer peripheral surface of the nut rod is provided with an annular groove. The valve rod nut has certain strength and compressive resistance, and because the valve rod nut is used in the operation process of the valve, the force of the valve rod shaft is directly applied to the valve rod nut. The valve rod nut and the valve rod rotate along with the threads, and the friction coefficient of the valve rod nut is small. Therefore, the phenomenon of seizure or rusting can be avoided, and the materials of the valve rod nut mainly comprise copper alloy, steel and the like.

Adopt whole aluminium bronze integrative foundry goods at traditional valve stem nut, lead to whole manufacturing cost higher, and can lead to the bulk strength lower, life-span is lower when using, needs to overhaul and change after using a period, and is higher to whole use and maintenance cost.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide an embedded stem nut which can effectively solve the problems of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an in-line stem nut, comprising: a housing and an inner member;

the shell is provided with a through mounting hole, the middle part of the shell is provided with a clamping groove matched with the periphery of the internal part, the shell is formed by buckling a first shell and a second shell up and down, the contact surfaces of the first shell and the second shell are positioned between the upper end and the lower end of the clamping groove, and the contact surfaces of the first shell and the second shell are both provided with extension tables along the circumferential direction;

the inner part is clamped in the clamping groove and is provided with a threaded hole in a through mode along the axial direction.

Preferably, the first shell and the second shell are connected through welding and are fixed in a welding mode along the circumferential direction of the extending platform of the first shell and the second shell.

Preferably, the first shell is provided with an inner concave platform at the upper end of the first shell located on the extension platform, the outer ring of the first shell located on the inner concave platform is provided with a clamping key groove, and the clamping key groove is clamped and fixed through a clamping key.

Preferably, the upper end face and the lower end face of the extension table are both limited and fixed through mounting rings.

Preferably, the peripheral width of the inner member is larger than the diameter of the mounting hole, and the diameter of the threaded hole of the inner member is smaller than the diameter of the mounting hole.

Preferably, the upper end and the lower end of the internal part are in contact with the upper surface and the lower surface of the inner cavity of the clamping groove.

Compared with the prior art, the utility model discloses the beneficial effect who produces is:

1. this embedded stem nut through setting up two segmentation structure shells, through with the internals joint in the complete draw-in groove of shell one and two concatenation formation of shell, through setting up the extension platform, increases the shell rather than fixed knot structure's area of contact, non-integral type structure is convenient for choose for use the internals and the shell of different materials according to the demand of difference, reduces manufacturing cost, perhaps improves product property ability, reduces to consume and improves economic efficiency.

2. This embedded stem nut, non-integral type structure, be convenient for choose for use the internals and the shell of different materials according to the demand of difference, can set up internals into aluminium bronze material commonly used or other materials commonly used, and choose for use the better or lower shell of price of intensity wear resistance, the shell of material such as optional carbon steel, replace integrative cast stem nut with the shell that low price or performance are better, it is more expensive to reduce the price, perhaps rare material's use, reduce manufacturing cost, or improve product property, reduce and consume and improve economic efficiency.

Drawings

FIG. 1 is a cross-sectional view of a valve stem nut of the present invention;

fig. 2 is an assembly view of the valve-stem nut of the present invention.

In the figure: 1. a housing; 101. a first shell; 102. a second shell; 103. an inner concave platform; 104. clamping a key groove; 105. mounting holes; 106. a card slot; 107. an extension stage; 2. an internal member; 201. a threaded hole; 3. a snap key; 4. and (7) installing a 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.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are directions or positional relationships based on the drawings, and are only for convenience of description of the present invention and simplification of description, but not for indicating or implying that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, connected through an intermediate medium, or connected to the inside of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1, referring to fig. 1-2, an in-line stem nut, comprising: a housing 1 and an inner member 2;

the shell 1 is provided with a mounting hole 105 in a penetrating manner, the middle part of the shell 1 is provided with a clamping groove 106 matched with the periphery of the inner part 2, the shell 1 is formed by buckling a first shell 101 and a second shell 102 up and down, the contact surfaces of the first shell 101 and the second shell 102 are positioned between the upper end and the lower end of the clamping groove 106, and the contact surfaces of the first shell 101 and the second shell 102 are both provided with extension platforms 107 along the circumferential direction;

the mounting hole 105 is convenient for insert the installation with the valve rod, through radially being divided into two segmentation structures with shell 1 along the draw-in groove, and form a complete draw-in groove 106 after two shell 1 splices, be convenient for install internals 2 in the draw-in groove of concatenation completion, be convenient for process and installation, improve production efficiency, through setting up extension platform 107, increase the area of contact of shell rather than fixed knot structure, be convenient for carry out the pressfitting with shell one and shell two and fix, improve the steadiness of integral connection.

The inner part 2 is clamped in the clamping groove 106, and the inner part 2 is provided with a threaded hole 201 in a through manner along the axial direction.

The valve rod inserted into the mounting hole is in threaded connection with the threaded hole in the internal part, and the valve rod nut and the valve rod are connected.

The upper end outer ring of the internal part can be in threaded connection with the first shell through threads, and the lower end outer ring of the internal part can be in threaded connection with the second shell through threads, so that the integral connection is more stable.

Through setting up two segmentation structure shells 1, through forming complete draw-in groove 106 with the joint of internals 2 in shell 101 and the concatenation of shell two 102, can carry out the joint with internals fixed, be convenient for process and installation, non-integral type structure, be convenient for choose for use the internals and the shell of different materials according to the demand of difference, can set up internals into aluminium bronze material commonly used or other materials commonly used, and choose for use the better or lower shell of price of intensity wear resistance, the shell of materials such as optional carbon steel, replace integrative cast valve rod nut with the shell that low price or performance are better, it is more expensive to reduce the price, perhaps rare material's use, reduce manufacturing cost, or improve product performance, reduce and consume and improve economic efficiency.

Referring to fig. 1, in the embodiment, the first casing 101 and the second casing 102 are connected by welding and are welded and fixed along the circumferential direction of the extension table 107 of the first casing 101 and the second casing 102.

Through setting up extension platform 107, increase the area of contact of shell 1 rather than fixed knot structure, and carry out welded fastening along the seam crossing of two extension platforms, can increase welded area to adopt seamless welding, make its part as an organic whole, ensure its continuous steady operation, safe and reliable.

Referring to fig. 1-2, in this embodiment, an inner concave stage 103 is disposed at an upper end of the first housing 101 on the extending stage 107, a clamping key slot 104 is disposed at an outer ring of the first housing 101 on the inner concave stage 103, and the first housing 101 is clamped and fixed by the clamping key slot 104 through the clamping key 3.

Through setting up concave station 103 in, increase the area of contact of shell 1 with the installation position, can improve the stability of valve-stem nut installation, as shown in fig. 2, through the joint keyway 104 that sets up, when installing valve-stem nut, through inserting joint key 3 in the joint keyway, lock valve-stem nut and installation position, restrict its removal, safe and reliable.

The upper and lower end surfaces of the extension table 107 are both fixed by the mount ring 4. Through setting up the collar, when installing, can carry out the effect of pressfitting to extending the platform, can extend two platforms pressfitting together, further assurance welded structure's stability and fastness.

Referring to fig. 1, in the embodiment, the peripheral width of the inner member 2 is greater than the diameter of the mounting hole 105, so that the inner member can be clamped in the housing of the housing, the stability of the splicing connection is ensured, and the inner member can be better fixed in the housing. The diameter of the threaded hole 201 of the internal part 2 is smaller than that of the mounting hole 105, so that when the valve rod is inserted into the mounting hole in the shell, threads on the valve rod can be meshed with the threaded hole in the internal part, connection convenience is improved, the situation that the threads of the valve rod are contacted with the shell and damaged in the use process is avoided, the upper end and the lower end of the internal part 2 are contacted with the upper surface and the lower surface of the inner cavity of the clamping groove 106, the internal part is clamped and fixed better, stable connection is achieved, and stability of the whole structure is improved.

By the way, the utility model discloses a set up two segmentation structure shells 1, through with 2 joints of internals in shell 101 and two 102 concatenations of shell form complete draw-in groove 106, through setting up extension platform 107, increase shell 1 and its fixed knot structure's area of contact, non-integral type structure is convenient for choose for use the internals 2 and the shell 1 of different materials according to the demand of difference, reduces manufacturing cost, perhaps improves product property ability, and reduction consumption improves economic efficiency.

Certain exemplary embodiments of the present invention have been described above by way of illustration only, and it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. An embedded stem nut, its characterized in that: it includes: a housing (1) and an inner part (2);

the shell (1) is provided with a through mounting hole (105), the middle part of the shell (1) is provided with a clamping groove (106) matched with the periphery of the internal part (2), the shell (1) is formed by buckling a first shell (101) and a second shell (102) up and down, the contact surfaces of the first shell (101) and the second shell (102) are positioned between the upper end and the lower end of the clamping groove (106), and the contact surfaces of the first shell (101) and the second shell (102) are both provided with extension tables (107) along the circumferential direction;

the inner part (2) is clamped in the clamping groove (106), and the inner part (2) is provided with a threaded hole (201) in a through mode along the axial direction.

2. The in-line stem nut of claim 1, wherein: the first shell (101) and the second shell (102) are connected through welding and are fixed in a welding mode along the circumferential direction of the extending platform (107) of the first shell (101) and the second shell (102).

3. The in-line stem nut of claim 1, wherein: the upper end that first shell (101) is located its extension platform (107) is provided with interior concave station (103), joint keyway (104) have been seted up to first shell (101) outer lane department that is located interior concave station (103), and joint keyway (104) will through joint key (3) first shell (101) carry out the joint fixed.

4. The in-line stem nut of claim 1, wherein: the upper end surface and the lower end surface of the extension table (107) are both limited and fixed through the mounting ring (4).

5. The in-line stem nut of claim 1, wherein: the peripheral width of the inner part (2) is larger than the diameter of the mounting hole (105), and the diameter of the threaded hole (201) of the inner part (2) is smaller than the diameter of the mounting hole (105).

6. The in-line stem nut of claim 1, wherein: the upper end and the lower end of the internal part (2) are contacted with the upper surface and the lower surface of the inner cavity of the clamping groove (106).