CN202832576U - Three-use valve for mining individual hydraulic prop - Google Patents
Three-use valve for mining individual hydraulic prop Download PDFInfo
- Publication number
- CN202832576U CN202832576U CN 201220402227 CN201220402227U CN202832576U CN 202832576 U CN202832576 U CN 202832576U CN 201220402227 CN201220402227 CN 201220402227 CN 201220402227 U CN201220402227 U CN 201220402227U CN 202832576 U CN202832576 U CN 202832576U
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- Prior art keywords
- valve
- screw rod
- connecting screw
- spring
- safety valve
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- Expired - Fee Related
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Abstract
The utility model discloses a three-use valve for mining individual hydraulic prop, comprising a left valve cylinder, an oil filling valve body, a check valve spool, a check valve spring, an unloading valve spacer, an unloading valve spring, a connecting screw rod, a valve pocket, a safety valve spool, a spring seat, a safety valve spring, a pressure regulating screw and a right valve cylinder. The safety valve spool is set in the connecting screw rod and one end of the safety valve spool extends out of the connecting screw rod to contact with the spring pocket directly. A discharge hole is mounted at the side wall of the safety valve spool. A seal ring made of composite plastic is employed between the safety valve spool and the connecting screw rod. Compared to current technologies, the three-use valve has fewer parts with simple structure. There are no steel balls, valve seats and guide sleeves. The safety valve spool is set in the connecting screw rod and contact with the spring seat directly in order to open out the spring seat. This kind of structure enables large unit volume of liquid flow of the safety valve and the sealing effect is good because the seal ring made of composite plastic is employed between the safety valve spool and the connecting screw rod.
Description
Technical field
The utility model relates to the Hydraulic Elements in the coal-mine integrated-mining equipment hydraulic circuit, and specifically, the utility model relates to a kind of colliery hydraulic prop triple-use valve.
Background technology
Triple-use valve must be equipped with on the hydraulic prop in coal-mine integrated-mining equipment, triple-use valve is one way valve, feather valve, the combination of safety valve, mainly by left valve cylinder, the oiling valve body, one-way valve seat, steel ball, gland nut, volute spring, the unloading valve pad, the feather valve spring, connecting screw rod, valve pocket, valve seat, safe needle, safe valve pad, the hexagonal fairlead, spring base, safety valve spring, voltage regulation screw, the compositions such as right valve cylinder, one way valve unit and unloader unit are used for fluid injection and manually unloading, and valve unit then is timely earial drainage step-down when the pillar pressure-bearing is overweight.The safe spool of present triple-use valve and emergency valve seat adopt the end face seal mode, and use the O RunddichtringO to seal, if contain the reliability of the easy impact sealings such as impurity particle in the liquid, sealing effectiveness is poor might to cause releasing pressure automatically.Valve unit when work current by pass little, fluid flow is little, in unexpected in time step-down when overweight of pillar roof pressure, the pillar or the triple-use valve dropout is flown out of may bending causes safety problem.And the part of present triple-use valve is more, causes complex structure, and processing is inconvenient.
The utility model content
Technical problem to be solved in the utility model provides a kind of good sealing effect, colliery hydraulic prop triple-use valve that fluid flow is large.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of colliery hydraulic prop triple-use valve, comprise left valve cylinder, the oiling valve body, inner elements of check valve, one-way valve spring, the unloading valve pad, the feather valve spring, connecting screw rod, valve pocket, safe spool, spring base, safety valve spring, voltage regulation screw and right valve cylinder, described safe spool is located in the described connecting screw rod, one end of safe spool stretches out in the outside of connecting screw rod and directly contacts with described spring base, the sidewall of safe spool is provided with discharge orifice, adopts the sealing ring of being made by composite plastic to seal between safe spool and connecting screw rod.
Described inner elements of check valve is roughly cylindrical structure, and the end of its pouring orifice on described oiling valve body is pyramidal structure, also is provided with fuel feed hole on taper seat.
The utility model adopts technique scheme, compared with prior art, the part of this triple-use valve is few, and is simple in structure, be not provided with steel ball, valve seat and fairlead, safe spool is located at connecting screw rod inside, and directly contacts with spring base, to back down spring base, this structure is so that the fluid flow of valve unit is large, and adopt the sealing ring of being made by composite plastic to seal between safe spool and the connecting screw rod, than adopting rubber gasket, composite plastic sealing ring good sealing effect.
Description of drawings
Fig. 1 is the structural representation of triple-use valve of the present utility model;
Mark among the above-mentioned figure is: 1, left valve cylinder; 2, oiling valve body; 3, inner elements of check valve; 4, one-way valve spring; 5, unloading valve pad; 6, feather valve spring; 7, connecting screw rod; 8, valve pocket; 9, safe spool; 10, sealing ring; 11, spring base; 12, safety valve spring; 13, voltage regulation screw; 14, right valve cylinder.
The specific embodiment
Be illustrated in figure 1 as a kind of colliery of the present utility model hydraulic prop triple-use valve, it comprises left valve cylinder 1, oiling valve body 2, inner elements of check valve 3, one-way valve spring 4, unloading valve pad 5, feather valve spring 6, connecting screw rod 7, valve pocket 8, safe spool 9, sealing ring 10, spring base 11, safety valve spring 12, voltage regulation screw 13 and right valve cylinder 14.This triple-use valve is not provided with steel ball, valve seat and fairlead, safe spool 9 is directly arranged in the connecting screw rod 7, one end of safe spool 9 stretches out in the outside of connecting screw rod 7 and directly contacts with spring base 11, the sidewall of safe spool 9 is provided with discharge orifice, compared with prior art, the part of this triple-use valve is few, simple in structure, be not provided with steel ball, valve pocket 8 and fairlead, safe spool 9 is located at connecting screw rod 7 inside, and directly contact with spring base 11, to back down spring base 11, this structure is so that the fluid flow of valve unit is large, and the sealing ring 10 that employing is made by composite plastic between safe spool 9 and the connecting screw rod 7 seals, than adopting rubber gasket, composite plastic sealing ring 10 good sealing effects.And, between safe spool 9 and connecting screw rod 7, adopt the sealing ring 10 of being made by composite plastic to seal.
As shown in Figure 1, inner elements of check valve 3 is roughly cylindrical structure, and the end of its pouring orifice on oiling valve body 2 is pyramidal structure, also is provided with fuel feed hole on taper seat.
The above has carried out exemplary description to the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (2)
1. colliery hydraulic prop triple-use valve, comprise left valve cylinder, the oiling valve body, inner elements of check valve, one-way valve spring, the unloading valve pad, the feather valve spring, connecting screw rod, valve pocket, safe spool, spring base, safety valve spring, voltage regulation screw and right valve cylinder, it is characterized in that: described safe spool is located in the described connecting screw rod, one end of safe spool stretches out in the outside of connecting screw rod and directly contacts with described spring base, the sidewall of safe spool is provided with discharge orifice, adopts the sealing ring of being made by composite plastic to seal between safe spool and connecting screw rod.
2. colliery according to claim 1 hydraulic prop triple-use valve, it is characterized in that: described inner elements of check valve is roughly cylindrical structure, and the end of its pouring orifice on described oiling valve body is pyramidal structure, also is provided with fuel feed hole on taper seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402227 CN202832576U (en) | 2012-08-14 | 2012-08-14 | Three-use valve for mining individual hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402227 CN202832576U (en) | 2012-08-14 | 2012-08-14 | Three-use valve for mining individual hydraulic prop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832576U true CN202832576U (en) | 2013-03-27 |
Family
ID=47944308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220402227 Expired - Fee Related CN202832576U (en) | 2012-08-14 | 2012-08-14 | Three-use valve for mining individual hydraulic prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832576U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110267A (en) * | 2013-04-16 | 2014-10-22 | 淮北扬帆有色冶金科技有限公司 | Hydraulic single-supporting-column combined three-purpose valve |
| CN107906236A (en) * | 2017-11-21 | 2018-04-13 | 嘉善海力达工具有限公司 | Anti-leak speed limit relief arrangement |
| CN108262219A (en) * | 2018-03-27 | 2018-07-10 | 深圳市世椿智能装备股份有限公司 | A kind of liquid sealed type valve member |
-
2012
- 2012-08-14 CN CN 201220402227 patent/CN202832576U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110267A (en) * | 2013-04-16 | 2014-10-22 | 淮北扬帆有色冶金科技有限公司 | Hydraulic single-supporting-column combined three-purpose valve |
| CN107906236A (en) * | 2017-11-21 | 2018-04-13 | 嘉善海力达工具有限公司 | Anti-leak speed limit relief arrangement |
| CN108262219A (en) * | 2018-03-27 | 2018-07-10 | 深圳市世椿智能装备股份有限公司 | A kind of liquid sealed type valve member |
| CN108262219B (en) * | 2018-03-27 | 2023-04-28 | 深圳市世椿智能装备股份有限公司 | Liquid sealing type valve assembly |
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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: 20130327 Termination date: 20160814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |