CN205136710U - Auto -lock compact form relief valve - Google Patents
Auto -lock compact form relief valve Download PDFInfo
- Publication number
- CN205136710U CN205136710U CN201520928102.XU CN201520928102U CN205136710U CN 205136710 U CN205136710 U CN 205136710U CN 201520928102 U CN201520928102 U CN 201520928102U CN 205136710 U CN205136710 U CN 205136710U
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- valve
- locking
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- self
- valve seat
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Abstract
The utility model relates to an auto -lock compact form relief valve belongs to the technical field of hydraulic pressure safety. This valve is including installing at the downthehole case of supporting host computer valve body relief valve, and valve opening from interior to exterior has bottom outlet section, feed liquor hole section, play liquid hole section and internal thread that the aperture increases step by step, the case contains disk seat and retaining member, the disk seat has and the bottom outlet section matches valve post, can shutoff feed liquor hole section and go out the valve clack of step between the section of liquid hole, is connected through reducing section between valve post and the valve clack, the retaining member comprises chassis and the locking ring that middle annular separates, and chassis and locking ring have the external screw thread that matches with internal thread and have the central perforation, and the terminal surface of locking ring is opened to be had its crossed groove who divide into many lamellas, compression spring is equipped with between the outer end of disk seat and the inner of retaining member, the central perforation has taper hole and locking threads by outer extremely interior system, and is equipped with the conical head bolt that matches. This practicality is assembled the convenience, can be relied on self structure locking to the performance is very reliable and stable.
Description
Technical field
The utility model relates to a kind of safety valve, and especially a kind of self-locking type safety valve, belongs to hydraulic safe technical field.
Background technique
Safety valve is a kind of releasing pressure automatically protective equipment opened by import static pressure, its fundamental function is when system internal pressure exceedes predetermined value, safety valve under system overpressure effect, automatic Open valve, the pressure that rapid discharge exceeds, with the pressure inside and outside balance sysmte, is avoided occurring accident because of superpressure.
According to the applicant understood, safety valve of the prior art comprises regulating ring, spring, lower regulating ring, flap etc., when this type of safety valve is in the valve body being installed to the system bodies such as supporting commutator, need in valve body, separately to arrange a valve seat to install flap, and also need after being installed by safety valve that a nut is installed again and withstand upper regulating ring.These structures not only make the installation of safety valve very inconvenient, and can not realize self-locking after system overpressure, there is potential safety hazard.
Model utility content
The purpose of this utility model is: for above-mentioned prior art Problems existing, propose one not only guarantee safety when system overpressure, and easy to assembly, self structure can be relied on to lock, and self-locking type safety valve stable and reliable for performance and.
In order to reach above object, self-locking type safety valve of the present utility model comprises the spool be arranged in the safe valve opening of matched host machine valve body, and described valve opening has bottom outlet section, inlet opening section, liquid outlet opening section and the internal thread segment that aperture increases step by step from the inside to the outside; Described spool contains valve seat and locking element, the valve rod that described valve seat has and bottom outlet section matches, can the flap of step between shutoff inlet opening section and liquid outlet opening section, and described valve rod is connected by undergauge section with between flap; The chassis that described locking element is separated by middle annular groove and locking ring are formed, and described chassis and locking ring have the outside thread that matches with described internal thread segment and have central perforation, and the end face of described locking ring has the crossed grooves being divided into many lobes; Between the outer end of described valve seat and the inner of described locking element, Compress Spring is housed; Described central perforation is shaped with taper hole and locking screw from outside to inside, and the conical head bolt matched is housed.
During installation, after spool is loaded valve opening, screw locking element and spring is compressed as required, then screw conical head bolt, locking ring is outwards strutted, thus be locked in the valve opening of valve body, and the active force that spring pushes up locking element outwardly makes tapering be tending towards wedging, therefore achieves reliable self-locking.During work, when the hydraulic pressure being derived from liquid input section exceedes the impacting force of spring, flap is backed down pressure release, and pressure reduces; Afterwards under spring compression effect, flap resets, the step between shutoff inlet opening section and liquid outlet opening section, thus closed safe valve.In the process, hydraulic pressure is higher, then be more conducive to the wedging in tapering, and thus safety valve all-the-time stable is reliable.
As can be seen here, this practicability is easy to assembly, self structure can be relied on to lock, and performance is very reliable and stable.
Further, the outer end of described valve seat has spring core projection, and the inner of described locking element has spring core boss, and described spring core projection and spring core boss are set with the two ends of the Compress Spring between valve seat outer end and locking element the inner.
Further, described flap is by the step between conical surface shutoff inlet opening section and liquid outlet opening section.
Further, described valve seat has the central hole being communicated with two ends macropore by being communicated with aperture.
Further, described valve rod has the circular groove of axially spaced-apart.
Further, the degree of depth of described taper hole equals locking ring thickness and central ring well width sum.
Accompanying drawing explanation
Fig. 1 is the closed condition structural representation of an embodiment.
Fig. 2 be Fig. 1 embodiment back down status architecture schematic diagram.
Fig. 3 is Fig. 1 embodiment valve core structure schematic diagram.
Fig. 4 is the locking element structural representation in Fig. 1.
Fig. 5 is the side view of Fig. 4.
Embodiment
Self-locking type safety valve of the present utility model as depicted in figs. 1 and 2, as the safe valve opening 2 of the commutator valve body 1 of matched host machine built with spool 3.Valve opening 2 has bottom outlet section 2-4, inlet opening section 2-3, the liquid outlet opening section 2-2 and internal thread segment 2-1 that aperture increases step by step from the inside to the outside.
Spool 3 as shown in Figure 3, containing valve seat 3-a and locking element 3-b, the valve rod a-1 that valve seat 3-a has and bottom outlet section 2-4 matches, flap a-2 by step between conical surface shutoff inlet opening section 2-3 and liquid outlet opening section 2-2, be connected by undergauge section a-3 between valve rod a-1 with flap a-2.Valve rod a-1 has the circular groove of axially spaced-apart, and valve seat 3-a has the central hole a-4 being communicated with two ends macropore by being communicated with aperture, and therefore slippage very freely.
Locking element 3-b as shown in Figure 4 and Figure 5, the chassis b-3 separated by middle annular groove b-2 and locking ring b-1 is formed, chassis b-3 and locking ring b-1 has the outside thread that matches with internal thread segment 2-1 and has central perforation b-4, and the end face of locking ring b-1 has the criss-crossing groove 3-6 being divided into pintongs.The outer end of valve seat 3-a has the protruding a-5 of spring core, the inner of locking element 3-b has spring core boss b-5, the protruding a-5 and spring core boss b-5 of spring core is set with the two ends of the Compress Spring 3-c between valve seat outer end and locking element the inner, therefore ensure that spring action force direction is stablized.Central perforation b-4 is shaped with taper hole and locking screw from outside to inside, and the interior hexagonal concave cone hook bolt 3-d matched is housed.The degree of depth of taper hole equals locking ring b-1 thickness and middle annular groove b-2 width sum.
After the valve seat of spool, spring, locking element are loaded valve opening according to the order of sequence, screwing locking element by criss-crossing groove makes spring compress valve seat as required, then conical head bolt is screwed by inner hexagon spanner, to be risen effect by the support of the conical surface, locking ring is outwards launched, thus locking element is locked in the valve opening of valve body, and no matter be spring or hydraulic action, all contribute to the wedging keeping tapering, therefore achieve reliable and stable self-locking.During work, when superpressure, as shown in Figure 2, flap is backed down; After pressure release, flap resets, as shown in Figure 1, and closed safe valve.Facts have proved, the present embodiment is easy for installation, self-locking is reliable.
Claims (6)
1. a self-locking type safety valve, comprises the spool be arranged in the safe valve opening of matched host machine valve body, and described valve opening has bottom outlet section, inlet opening section, liquid outlet opening section and the internal thread segment that aperture increases step by step from the inside to the outside; It is characterized in that: described spool contains valve seat and locking element, the valve rod that described valve seat has and bottom outlet section matches, can the flap of step between shutoff inlet opening section and liquid outlet opening section, described valve rod is connected by undergauge section with between flap; The chassis that described locking element is separated by middle annular groove and locking ring are formed, and described chassis and locking ring have the outside thread that matches with described internal thread segment and have central perforation, and the end face of described locking ring has the crossed grooves being divided into many lobes; Between the outer end of described valve seat and the inner of described locking element, Compress Spring is housed; Described central perforation is shaped with taper hole and locking screw from outside to inside, and the conical head bolt matched is housed.
2. a kind of self-locking type safety valve according to claim 1, it is characterized in that: the outer end of described valve seat has spring core projection, the inner of described locking element has spring core boss, and described spring core projection and spring core boss are set with the two ends of the Compress Spring between valve seat outer end and locking element the inner.
3. a kind of self-locking type safety valve according to claim 2, is characterized in that: described flap is by the step between conical surface shutoff inlet opening section and liquid outlet opening section.
4. a kind of self-locking type safety valve according to claim 3, is characterized in that: described valve seat has the central hole being communicated with two ends macropore by being communicated with aperture.
5. a kind of self-locking type safety valve according to claim 4, is characterized in that: described valve rod has the circular groove of axially spaced-apart.
6. a kind of self-locking type safety valve according to claim 5, is characterized in that: the degree of depth of described taper hole equals locking ring thickness and central ring well width sum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520928102.XU CN205136710U (en) | 2015-11-20 | 2015-11-20 | Auto -lock compact form relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520928102.XU CN205136710U (en) | 2015-11-20 | 2015-11-20 | Auto -lock compact form relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205136710U true CN205136710U (en) | 2016-04-06 |
Family
ID=55622505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520928102.XU Active CN205136710U (en) | 2015-11-20 | 2015-11-20 | Auto -lock compact form relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205136710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763942A (en) * | 2015-11-20 | 2017-05-31 | 镇江液压股份有限公司 | A kind of self-locking type safety valve |
-
2015
- 2015-11-20 CN CN201520928102.XU patent/CN205136710U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763942A (en) * | 2015-11-20 | 2017-05-31 | 镇江液压股份有限公司 | A kind of self-locking type safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |