CN201513584U - Novel valve needle of needle type throttling valve - Google Patents
Novel valve needle of needle type throttling valve Download PDFInfo
- Publication number
- CN201513584U CN201513584U CN2009202325394U CN200920232539U CN201513584U CN 201513584 U CN201513584 U CN 201513584U CN 2009202325394 U CN2009202325394 U CN 2009202325394U CN 200920232539 U CN200920232539 U CN 200920232539U CN 201513584 U CN201513584 U CN 201513584U
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- joint
- needle
- head
- connection part
- connection
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Abstract
The utility model relates to a novel valve needle of a needle type throttling valve, which comprises a head part, a connection part and a tail part, wherein an inward concave step-shaped inner hole is formed at the head part; the connection part adopts a split-type structure; a through hole is formed in the center of the connection part; the upper end of the connection part takes the shape of a step and is matched with the inner hole of the head part; the split-type connection part is spliced into a whole and arranged in the inner hole of the head part; a stopper rod is pressed into the through hole in the center of the connection part; the upper end of the connection part and the inner hole of the head part are matched tightly, so that the connection part and the head part are connected into a whole; and the lower end of the connection part is connected with the tail part. In utility model, the connection part and the head part adopt a mechanical connection mode, and the connection is very firm, thereby enhancing the reliability, reducing risk in use, and reducing the manufacturing cost greatly.
Description
Technical field
The utility model relates to the needle of a kind of petroleum industry with needle-type throttle valve.
Background technique
Petroleum industry generally adopts steel part coated with hard alloy with the needle of needle-type throttle valve, or adopts soldering cemented carbide head etc., and product in use has the upper frequency vibrations, and performance is different, and working life and reliability have nothing in common with each other.Practice shows that number average adopts soldering to connect steel part and cemented carbide part mostly now.
Current, the problem that common soldering steel part and cemented carbide mainly exist has: 1. the intensity of soldering is low; 2. part in use has the vibrations of upper frequency, and the alloy part comes off easily after the soldering; 3. manual welding is generally adopted in soldering, and junction surface is bigger, is not easy to weld full face of weld during welding, and soldering reliability is poor; 4. part is had very high quality requirement, soldering cemented carbide and steel part generally adopt the silver soldering welding, and welding cost is higher.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of cemented carbide steel part combination brake switch and proporting pin that is used for petroleum industry with needle-type throttle valve is provided, and is intended to effectively improve operational safety.
The purpose of this utility model is achieved through the following technical solutions:
A kind of needle of novel needle-type throttle valve, comprise head, joint and afterbody, characteristics are: described head is provided with indent formula stepped shape endoporus, described joint is a split-type structural, the center of joint has through hole, the upper end of joint is stepped shape, the upper end of joint and the endoporus of head match, split type joint amalgamation is in one places the endoporus of head, be pressed into stopper in the central through bore of joint, the joint upper end forms drive fit with the head endoporus, thereby joint and head connect as one; The lower end of described joint is connected with afterbody.
The purpose of this utility model can also further realize by following optimal technical scheme:
The needle of above-mentioned a kind of novel needle-type throttle valve, the material of described head are cemented carbide, and the material of described joint is the 1Cr13 steel, and the material of described stopper is the 1Cr13 steel.
The needle of above-mentioned a kind of novel needle-type throttle valve, described joint longitudinally equalization are decomposed into 3.
The needle of above-mentioned a kind of novel needle-type throttle valve, the lower end of described joint adopt thread connecting mode or welding connecting mode to be connected with afterbody.
Adopt technical solutions of the utility model can play following technique effect:
(1) modern design, the head of cemented carbide adopts the step drive fit to be connected with the joint of steel, and the central bore that stopper is compressed into joint is connected in one joint and head mechanicalness; Connect quite firmly, strengthened the reliability of using, reduced the risk in using, also greatly reduce manufacture cost simultaneously;
(2) head adopts cemented carbide, has strengthened wear resistance, has improved working life, compares with traditional soldering processes, has simplified manufacturing process greatly, and application prospect is very good.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1: structural representation of the present utility model;
Fig. 2: among Fig. 1 along the cross-sectional schematic of A-A.
The implication of each reference character is among the figure:
The 1-head, 2-joint, 3-stopper, 4-joint.
Embodiment
A kind of needle of novel needle-type throttle valve, as shown in Figure 1, mainly comprise head 1, joint 2, stopper 3 and afterbody 4, head 1 is provided with indent formula stepped shape endoporus, the Zhou Jing of the inner end in hole is greater than the Zhou Jing of outer end, joint 2 is a split-type structural, common joint 2 longitudinally equalization is decomposed into 3, the center of joint 2 has through hole, and the upper end of joint 2 is stepped shape, and the endoporus of the upper end of joint 2 and head 1 matches, split type joint amalgamation is in one places the endoporus of head, be pressed into stopper 3 in the central through bore of joint 2, the joint upper end forms drive fit with the head endoporus, thereby joint 2 connects as one with head 1; The lower end of joint 2 adopts thread connecting mode or welding connecting mode to be connected with afterbody 4.
During concrete the manufacturing, the material of head 1 adopts cemented carbide, and the material of joint 2 adopts the 1Cr13 steel, and the material of stopper 3 adopts the 1Cr13 steel.The head of cemented carbide adopts conventional cemented carbide making method, and the steel joint adopts the processing of conventional mechanical processing method, compares with traditional soldering processes, has simplified manufacturing process greatly.Head 1 adopts cemented carbide, has strengthened wear resistance, has improved life of product.Joint 2 adopts mechanical connection manner with head 1, is connected firmly, and connection reliability is better.In addition, because cemented carbide and steel part mechanical connection have also reduced cost of goods manufactured, connection does not come off.
Can show, unique, the novel structure of the utility model design, the pressure of dependence steel and alloy self when it is subjected to pulling force improves tensile strength.Connect very firmly, strengthened the reliability of using, reduced the risk in using, also greatly reduce manufacture cost simultaneously, be worth wide popularization and application in the field of business.
Need to prove that above-mentioned only is the exemplary applications of this practical new solution, can not be interpreted as the restriction to the utility model claim protection domain.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop within the claimed scope of the utility model.
Claims (4)
1. the needle of a novel needle-type throttle valve, comprise head, joint and afterbody, it is characterized in that: described head is provided with indent formula stepped shape endoporus, described joint is a split-type structural, the center of joint has through hole, the upper end of joint is stepped shape, the upper end of joint and the endoporus of head match, split type joint amalgamation is in one places the endoporus of head, be pressed into stopper in the central through bore of joint, the joint upper end forms drive fit with the head endoporus, thereby joint and head connect as one; The lower end of described joint is connected with afterbody.
2. the needle of a kind of novel needle-type throttle valve according to claim 1, it is characterized in that: the material of described head is a cemented carbide, and the material of described joint is the 1Cr13 steel, and the material of described stopper is the 1Cr13 steel.
3. the needle of a kind of novel needle-type throttle valve according to claim 1, it is characterized in that: described joint longitudinally equalization is decomposed into 3.
4. the needle of a kind of novel needle-type throttle valve according to claim 1 is characterized in that: the lower end of described joint adopts thread connecting mode or welding connecting mode to be connected with afterbody.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202325394U CN201513584U (en) | 2009-09-16 | 2009-09-16 | Novel valve needle of needle type throttling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202325394U CN201513584U (en) | 2009-09-16 | 2009-09-16 | Novel valve needle of needle type throttling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201513584U true CN201513584U (en) | 2010-06-23 |
Family
ID=42484994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202325394U Expired - Lifetime CN201513584U (en) | 2009-09-16 | 2009-09-16 | Novel valve needle of needle type throttling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201513584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666383B (en) * | 2009-09-16 | 2011-06-08 | 苏州新锐硬质合金有限公司 | Novel valve needle of needle-type throttle valve |
-
2009
- 2009-09-16 CN CN2009202325394U patent/CN201513584U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666383B (en) * | 2009-09-16 | 2011-06-08 | 苏州新锐硬质合金有限公司 | Novel valve needle of needle-type throttle valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100623 Effective date of abandoning: 20090916 |