CN208431396U - A kind of needle valve with locking mechanism - Google Patents
A kind of needle valve with locking mechanism Download PDFInfo
- Publication number
- CN208431396U CN208431396U CN201820946420.2U CN201820946420U CN208431396U CN 208431396 U CN208431396 U CN 208431396U CN 201820946420 U CN201820946420 U CN 201820946420U CN 208431396 U CN208431396 U CN 208431396U
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- Prior art keywords
- valve
- bonnet
- locking mechanism
- valve rod
- gland
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Abstract
The utility model discloses a kind of needle valves with locking mechanism, including valve body, bonnet and valve rod, bonnet is connected through a screw thread with valve body, valve rod lower end is equipped with the cone plug with valve-stem integrated, there is blind hole on valve body, fluid entering channel and fluid outlet passage, the blind via bottom is equipped with and the matched pin hole of cone plug, the valve rod is inserted in blind hole, make cone plug that the uninterrupted of pin hole be adjusted, the valve bonnet central is equipped with the centre bore that valve rod can be allowed inwardly to hide, the bonnet top is equipped with the gland for blocks central aperture, gland is connected through a screw thread with bonnet, the gland upper surface is used for the locating slot of tool open at least provided with two, the utility model increases the locking mechanism of gland, and it is opened by dedicated switching tools, the protection adjusted to valve rod may be implemented, to protect needle-like Valve is nonvoluntary to be conditioned.
Description
Technical field
The utility model relates to and chemical industry, petrochemical industry and metallurgy industry valve field, and in particular to it is a kind of with locking mechanism
Needle valve.
Background technique
Currently, in the device of chemical industry, petrochemical industry and metallurgy industry, the needle valve used is generally used for that caliber is smaller, flow
Smaller, the higher operating condition of degree of regulation, medium requirements are clean gas, liquid, and needle valve operation is relatively stable.
Needle valve when in use requires the degree of regulation of flow very high；Therefore, needle valve is mounted on valve arrangement, all
It is to have regulated uninterrupted；And existing needle valve directly passes through handwheel regulating valve stem control uninterrupted, does not use
Other locking mechanisms lock, other idlers such as any plant personnel can be allowed to operate in this way, need again to needle valve
It is adjusted from new, the flow adjusting of needle valve needs to match other switches to adjust, and wastes the working time, reduces working efficiency.
Utility model content
In place of overcoming the above deficiencies in the existing technologies, the purpose of this utility model is to provide a kind of locking
Close the needle valve of mechanism.
The utility model is achieved through the following technical solutions: a kind of needle valve with locking mechanism, including valve body, bonnet and
Valve rod, bonnet are connected through a screw thread with valve body, and valve rod lower end is equipped with cone plug with valve-stem integrated, have on valve body blind hole,
Fluid entering channel and fluid outlet passage, the blind via bottom is equipped with to be inserted with the matched pin hole of cone plug, the valve rod
Enter in blind hole, makes cone plug that the uninterrupted of pin hole be adjusted, the valve bonnet central, which is equipped with, to allow valve rod inwardly to hide
Centre bore, the bonnet top is equipped with the gland for blocks central aperture, and gland is connected through a screw thread with bonnet, the gland
Upper surface is used for the locating slot of tool open at least provided with two.
Further, valve body described in the utility model is equipped with top bar and mid-section threads.
Further, it is arranged with the matched sealing shroud of top bar, with mid-section threads and connects on valve rod described in the utility model
The external screw thread connect.
Further, valve rod upper surface described in the utility model is equipped with open portion with tool matching, and the open portion is to end
Face protrusion.
Further, bonnet lower end described in the utility model is equipped with for compressing getting out of a predicament or an embarrassing situation for sealing shroud.
Further, sealing shroud upper surface and lower end surface described in the utility model are equipped with gasket.
Further, valve body described in the utility model, bonnet and valve rod are all made of copper product and are made.
The utility model compared with prior art, have the following advantages that and the utility model has the advantages that
1, the utility model increases on bonnet to be opened by special opening-closing tool come open gland by gland
Afterwards could rotary valve rod adjust the uninterrupted of pin hole, to protect needle valve is nonvoluntary to be conditioned.
2, the utility model opens or closes needle valve using dedicated switching tools, and structure is simple, operation spirit
It is living.
3, the valve rod of the utility model and valve body are made of copper product, and the spool of valve rod is blocked pin hole and be can achieve completely
Sealing effect is not easy to leak.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become apparent:
Fig. 1 is the structural schematic diagram of needle valve of the utility model with locking mechanism；
Fig. 2 is the structural schematic diagram of the utility model valve rod；
Fig. 3 is the overlooking structure figure of Fig. 1；
Fig. 4 is the structural schematic diagram of the utility model switching tools；
Fig. 5 is the side block diagram of Fig. 4；
Wherein: 1-valve body, 2-bonnets, 3-valve rods, 4-spools, 5-centre bores, 6-glands, 7-gaskets, 8-the
One adjusting rod, the 9-the second adjusting rod, 10-blind holes, 11-fluid entering channels, 12-fluid outlet passages, 13-pin holes,
14-top bars, 15-mid-section threads, 20-get out of a predicament or an embarrassing situation, 30-sealing shrouds, 31-external screw threads, 31-open portions, 60-positioning
Slot, 80-claws, 90-switch slots.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than a.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；It is also possible to be connected directly, is also possible to indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
A kind of needle valve with locking mechanism of the present embodiment, as shown in Figure 1, Figure 2 and Figure 3, including valve body 1, bonnet 2 and
Valve rod 3, valve body 1, bonnet 2 and valve rod 3 are all made of copper product and are made, and bonnet 2 is connected through a screw thread with valve body 1, and 3 lower end of valve rod is set
There is the cone plug 4 with valve-stem integrated, there is blind hole 10, fluid entering channel 11 and fluid outlet passage 12, blind hole on valve body 1
10 bottoms are equipped with to be inserted in blind hole 10 with the matched pin hole 13 of cone plug, valve rod 3, makes the adjustable markingoff pin of cone plug 4
The uninterrupted in hole 13,2 center of bonnet are equipped with the centre bore 5 that valve rod 3 can be allowed inwardly to hide, and 2 top of bonnet is equipped with for closing
The gland 6 of centre bore, gland 6 are connected through a screw thread with bonnet 2,6 upper surface of gland set there are two be used for tool open positioning
Slot 60.
In order to make needle valve leakproofness stronger, it is not easy the problems such as leaking, top bar 14 and mid-section threads are equipped on valve body 1
15, be arranged on valve rod 3 with top bar 14 matched sealing shroud 30, the external screw thread 31 that is connect with mid-section threads 15,2 lower end of bonnet
Equipped with getting out of a predicament or an embarrassing situation 20 for compress sealing shroud 30, when valve rod 3 is inserted in valve body blind hole 10, valve rod 3 and mid-section threads 15 connect
It connects, when bonnet 2 is tightened by screw thread and valve body 1, the upper and lower end faces of sealing shroud 30 are respectively by 20 and the valve body of getting out of a predicament or an embarrassing situation of bonnet 2
1 top bar 14 compresses, and tie spacer 7 is fixed, gasket 7 be pressed in 30 upper surface of sealing shroud and get out of a predicament or an embarrassing situation 20 it
Between and 30 lower end surface of sealing shroud and top bar 14 between.
Valve rod 3 tightens adjustable spool 4 by mid-section threads and blocks pin hole 13 or opening pin hole 13, when valve rod 3 is screwed
When tight more loose, spool 4 is remoter with a distance from pin hole 13, and such flow is bigger, when valve rod 3 is tightened tighter, that is, spool 4
Closer with a distance from pin hole, for such flow with regard to smaller, 3 upper surface of valve rod is equipped with the open portion 32 with tool matching, the open portion 32
To head face hump, by special opening-closing tool come the opening of rotary valve rod 3.
A kind of special opening-closing tool of opening needle valve of the present embodiment, as shown in Figure 4 and Figure 5, including can open gland
The first adjusting rod 8 and openable valve rod open the second adjusting rod 9, the first adjusting rod 8 and the second adjusting rod 9 are all made of circle
Pipe, the end of first adjusting rod 8 be equipped with the matched claw 80 of gland locating slot, the end of second adjusting rod 9 is set
Have and is inserted in the first adjusting to end face indent, the second adjusting rod 9 with the matched switch slot 90 of 3 switch portion of valve rod, the switch slot 90
On bar 8, and telescopic movable can be carried out on the first adjusting rod 8.
Working principle of the utility model is: when needing to adjust the uninterrupted of needle valve, by the first adjusting rod 8
Two claws 80 are fastened on gland locating slot 60, using lever principle, since the second adjusting rod 9 is inserted in the first adjusting rod
On, the second adjusting rod 9 can be rotated to drive 8 rotary gland of the first adjusting rod when rotated by waiting, and gland 6 is opened, then
It is fastened with the switch slot 90 on the second adjusting rod 9 with valve rod open portion 32, using lever principle, since the second adjusting rod 9 is inserted into
In on the first adjusting rod 8, the first adjusting rod 8 can be rotated to drive 9 rotary valve rod 3 of the second adjusting rod when rotated by waiting, and make valve
Core 4 is slowly far from pin hole, to adjust uninterrupted.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where not departing from the principles of the present invention and objective,
The scope of the utility model is defined by the claims and their equivalents.
Claims (7)
1. a kind of needle valve with locking mechanism, including valve body, bonnet and valve rod, bonnet are connected through a screw thread with valve body, valve rod
Lower end is equipped with the cone plug with valve-stem integrated, has blind hole, fluid entering channel and fluid outlet passage, feature on valve body
Be: the blind via bottom is equipped with to be inserted in blind hole with the matched pin hole of cone plug, the valve rod, makes cone plug
The uninterrupted of adjustable pin hole, the valve bonnet central are equipped with the centre bore that valve rod can be allowed inwardly to hide, and the bonnet top is set
There is the gland for blocks central aperture, gland is connected through a screw thread with bonnet, and the gland upper surface is used at least provided with two
The locating slot of tool open.
2. a kind of needle valve with locking mechanism according to claim 1, it is characterised in that: the valve body is equipped with and appears on the stage
Rank and mid-section threads.
3. a kind of needle valve with locking mechanism according to claim 1, it is characterised in that: be arranged on the valve rod with
It top bar matched sealing shroud, the external screw thread that is connect with mid-section threads.
4. a kind of needle valve with locking mechanism according to claim 3, it is characterised in that: the valve rod upper surface is equipped with
With the open portion of tool matching, the open portion is to head face hump.
5. a kind of needle valve with locking mechanism according to claim 1, it is characterised in that: the bonnet lower end, which is equipped with, to be used
In getting out of a predicament or an embarrassing situation for compression sealing shroud.
6. a kind of needle valve with locking mechanism according to claim 5, it is characterised in that: the sealing shroud upper surface and
Lower end surface is equipped with gasket.
7. a kind of needle valve with locking mechanism according to claim 1, it is characterised in that: the valve body, bonnet and valve
Bar is all made of copper product and is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820946420.2U CN208431396U (en) | 2018-06-20 | 2018-06-20 | A kind of needle valve with locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820946420.2U CN208431396U (en) | 2018-06-20 | 2018-06-20 | A kind of needle valve with locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208431396U true CN208431396U (en) | 2019-01-25 |
Family
ID=65101648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820946420.2U Active CN208431396U (en) | 2018-06-20 | 2018-06-20 | A kind of needle valve with locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208431396U (en) |
-
2018
- 2018-06-20 CN CN201820946420.2U patent/CN208431396U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 362300, Quanzhou, Fujian province Nanan City Meilin Creek Industrial Zone No. 98 Patentee after: Zhengyi Valve Technology Co., Ltd Address before: 362300, Quanzhou, Fujian province Nanan City Meilin Creek Industrial Zone No. 98 Patentee before: FUJIAN ZHENGYI FIRE-FIGHTING VALVE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |