CN201953776U - Hinged bolt with one-way valve - Google Patents
Hinged bolt with one-way valve Download PDFInfo
- Publication number
- CN201953776U CN201953776U CN2011200368335U CN201120036833U CN201953776U CN 201953776 U CN201953776 U CN 201953776U CN 2011200368335 U CN2011200368335 U CN 2011200368335U CN 201120036833 U CN201120036833 U CN 201120036833U CN 201953776 U CN201953776 U CN 201953776U
- Authority
- CN
- China
- Prior art keywords
- way valve
- screw rod
- central passage
- spool
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Valve Housings (AREA)
Abstract
The utility model discloses a hinged bolt with a one-way valve, which comprises a bolt head (1) and a screw (2), wherein a central channel (3) is arranged in the screw (2), and a transverse channel (4) communicated with the central channel (3) is arranged on the wall of the screw (2); the one-way valve is arranged in the central channel (3) and comprises a spring (5), a spool ( 6) and a retainer ring (7), and one end of the spring (5) is fixed on the retainer ring (7); the other end of the spring is fixed on the spool (6), and the aperture of the central channel (3) close to the transverse channel (4) is reduced to form a stepped hole; and the stepped hole is pushed by the spool (6). When the transverse channel is used as a liquid outlet, liquid can push the spool to enter the central channel, and the one-way valve in the central channel can ensure that the liquid in the central channel unidirectionally flows, i.e., the liquid in a hydraulic system flows into the transverse channel and flows out of the central channel, so that the hinged bolt is suitable for an occasion that the transverse channel is used as the liquid inlet.
Description
Technical field
The utility model relates to bolt field, is a kind of hinge bolt that has one-way valve specifically.
Background technique
The hinge bolt of prior art generally comprises bolt head and screw rod, is provided with central passage in the described screw rod, and is provided with crosspassage communicates with central passage on the screw rod wall.The hinge bolt purposes is comparatively extensive, generally is used for Hydraulic Field, as manifold block, oil pump outlet etc.
Therefore in the middle of the prior art, one-way valve separates with hinge bolt, when installing and use, need distinguish installing and locating, operation bothers relatively, this moment, rate of fault was also higher, be unfavorable for maintenance, brought inconvenience, can be used for installing Component and itself have central tube in the hinge bolt to use; Also have in the central passage of hinge bolt at present one-way valve is installed, because the effect of one-way valve one-way flow, the liquid in the hydraulic system can only enter from central passage, and flows out from crosspassage; But in a lot of occasions, liquid need enter from crosspassage, flow out from central passage, and this be prior art can not accomplish.
The model utility content
The technical problems to be solved in the utility model is, a kind of hinge bolt that can make the liquid in the hydraulic system enter and flow out from central passage from crosspassage is provided.
Technical solution of the present utility model is, provide a kind of following structure to have the hinge bolt of one-way valve, comprise bolt head and screw rod, be provided with central passage in the described screw rod, and on the screw rod wall, be provided with crosspassage and communicate, in the described central passage one-way valve is installed with central passage; Described one-way valve comprises spring, spool and back-up ring, and described spring one end is fixed on the back-up ring, and the other end is fixed on the spool, and described central passage reduces to form shoulder hole near aperture, crosspassage place, and described spool withstands shoulder hole.
Adopt above structure, the utility model compared with prior art has the following advantages: adopt the utility model structure, when crosspassage is liquid entering hole, liquid can promote spool and enter central passage, one-way valve in the central passage can guarantee the liquid one-way flow in it, be that liquid in the hydraulic system enters and flows out from central passage from crosspassage, make the utility model be suitable for the occasion that the crosspassage place is a liquid entering hole.
As improvement, described screw rod is divided into two sections, and wherein one section has outside thread near the screw rod end, and another section is near screw head, and one section external diameter of described close screw head is greater than having externally threaded one section.Because screw rod is divided into two sections, wherein one section has outside thread, be mainly used to hinged, its external diameter is as good as with conventional hinge bolt, and the external diameter of another section is bigger, like this, can be when increase screw rod internal diameter be the central passage aperture, can not influence the intensity of screw rod, make things convenient for other part is installed in central passage, as valve class parts such as one-way valves.
Description of drawings
Accompanying drawing is the structural representation of the utility model hinge bolt.
As shown in the figure 1, bolt head, 2, screw rod, 3, central passage, 4, crosspassage, 5, spring, 6, spool, 7, back-up ring.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Hinge bolt of the present utility model comprises bolt head 1 and screw rod 2, is provided with central passage 3 in the described screw rod 2, and is provided with crosspassage 4 communicates with central passage 3 on screw rod 2 walls; Described screw rod 2 is divided into two sections, and wherein one section has outside thread near the screw rod end, and another section is near screw head, and one section external diameter of described close screw head is greater than having externally threaded one section.
Adopting said structure, mainly is that screw rod is divided into different two sections of external diameter, and like this, the aperture of the central passage in screw rod can be provided with more greatly, in order to other part to be installed, as one-way valve.
In the described central passage 3 one-way valve is installed, described one-way valve comprises spring 5, spool 6 and back-up ring 7, described spring 5 one ends are fixed on the back-up ring 7, the other end is fixed on the spool 6, described central passage 3 reduces to form shoulder hole near aperture, crosspassage 4 place, and described spool 6 withstands shoulder hole.The effect that acts on conventional one-way valve of one-way valve herein is different, and one-way valve of the present utility model is to be liquid entering hole with the crosspassage place, and central passage is a liquid outlet opening, and the flow direction of liquid flows to central passage from crosspassage; And conventional flow to crosspassage from central passage.Because a lot of occasions of Hydraulic Field need flow to central passage from crosspassage, so, adopt the utility model to use at this occasion.
Claims (2)
1. hinge bolt that has one-way valve, comprise bolt head (1) and screw rod (2), be provided with central passage (3) in the described screw rod (2), and being provided with crosspassage (4) on screw rod (2) wall communicates with central passage (3), described central passage is equipped with one-way valve in (3), it is characterized in that: described one-way valve comprises spring (5), spool (6) and back-up ring (7), described spring (5) one ends are fixed on the back-up ring (7), the other end is fixed on the spool (6), described central passage (3) is located the aperture near crosspassage (4) and is reduced to form shoulder hole, and described spool (6) withstands shoulder hole.
2. according to the described hinge bolt that has one-way valve of claim 1, it is characterized in that: described screw rod (2) is divided into two sections, wherein one section has outside thread near the screw rod end, and another section is near screw head, and one section external diameter of described close screw head is greater than having externally threaded one section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200368335U CN201953776U (en) | 2011-01-30 | 2011-01-30 | Hinged bolt with one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200368335U CN201953776U (en) | 2011-01-30 | 2011-01-30 | Hinged bolt with one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953776U true CN201953776U (en) | 2011-08-31 |
Family
ID=44497888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200368335U Expired - Fee Related CN201953776U (en) | 2011-01-30 | 2011-01-30 | Hinged bolt with one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657264A (en) * | 2018-06-29 | 2020-01-07 | 浙江三花汽车零部件有限公司 | One-way valve |
-
2011
- 2011-01-30 CN CN2011200368335U patent/CN201953776U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657264A (en) * | 2018-06-29 | 2020-01-07 | 浙江三花汽车零部件有限公司 | One-way valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20150130 |
|
| EXPY | Termination of patent right or utility model |