CN204061387U - A kind of safety door protective gear - Google Patents
A kind of safety door protective gear Download PDFInfo
- Publication number
- CN204061387U CN204061387U CN201420380234.9U CN201420380234U CN204061387U CN 204061387 U CN204061387 U CN 204061387U CN 201420380234 U CN201420380234 U CN 201420380234U CN 204061387 U CN204061387 U CN 204061387U
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- Prior art keywords
- valve
- fluid port
- hydraulic fluid
- directional control
- communicated
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a kind of safety door protective gear, comprise stroke valve and electro-hydraulic reversing valve, electro-hydraulic reversing valve comprises solenoid directional control valve and pilot operated directional control valve, the pilot operated directional control valve left and right sides has end cap, one of them end cap is provided with the first external control runner and the second external control runner, one end Q3 of the first external control runner is communicated with the hydraulic fluid port A3 of solenoid valve, the other end Q1 of the first external control runner is communicated with the oil inlet P 2 of stroke valve, one end Q4 of the second external control runner is communicated with the control hydraulic fluid port K1 of pilot operated directional control valve, the other end Q2 of the second external control runner is communicated with the hydraulic fluid port B2 of stroke valve, its advantage is without the need to additional processing transition block, the man-hour needed for processing transition iron block and expense are saved, eliminate and connect Sealing and transition iron block needed for transition iron block internal-external locus of control runner and electro-hydraulic reversing valve hydraulic fluid port, reduce cost of production, omitting transition iron block makes protective gear volume greatly reduce, compact structure.
Description
Technical field
The utility model relates to a kind of protective gear, especially relates to a kind of safety door protective gear.
Background technique
Existing safety door protective gear, as shown in Figure 1, comprise safety door, drive the stroke valve of safety door movement, electro-hydraulic reversing valve and die cylinder, electro-hydraulic reversing valve comprises solenoid directional control valve and pilot operated directional control valve, the pilot operated directional control valve left and right sides has and has end cap, transition iron block is provided with between solenoid directional control valve and pilot operated directional control valve, transition iron block is provided with the first external control runner, second external control runner, 3rd external control runner, flow control road and the 5th external control runner all round, wherein one end Q3 of the first external control runner is communicated with the hydraulic fluid port A3 of solenoid valve, the other end Q1 of the first external control runner is communicated with the oil inlet P 2 of stroke valve, one end Q4 of the second external control runner is communicated with the control hydraulic fluid port K1 of pilot operated directional control valve, the other end Q2 of the second external control runner is communicated with the hydraulic fluid port B2 of stroke valve.The hydraulic fluid port A3 of the solenoid directional control valve of this structure is directly connected in stroke valve oil inlet P 2 by the first external control runner, pilot operated directional control valve control hydraulic fluid port K1 is directly connected on stroke valve hydraulic fluid port B2 by the second external control runner, realize solenoid directional control valve and directly control stroke valve and stroke valve directly controls pilot operated directional control valve, to control the folding of safety door.Although the safety door protective gear of this structure adopts transition iron block to realize the cross complaint of stroke valve and electro-hydraulic reversing valve, but there are the following problems: 1. because electro-hydraulic reversing valve on the market only includes solenoid directional control valve and pilot operated directional control valve, realize the cross complaint of stroke valve and electro-hydraulic reversing valve, need extra increase transition iron block, five external control runners in transition iron block are that artificial is formed, make machining period long, reduce manufacturing efficiency; 2. Sealing need be used to be communicated with the hydraulic fluid port of electro-hydraulic reversing valve by the external control runner in transition iron block, and the use of transition iron block and Sealing adds cost of production; 3. transition iron block volume is large, makes a dress device overall volume become large, takes up room.
Summary of the invention
Technical problem to be solved in the utility model is to provide that a kind of cost of production is lower, manufacturing efficiency is higher and the safety door protective gear of compact structure.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of safety door protective gear, comprise stroke valve and electro-hydraulic reversing valve, described electro-hydraulic reversing valve comprises solenoid directional control valve and pilot operated directional control valve, the described pilot operated directional control valve left and right sides has end cap, end cap described in one of them is provided with the first external control runner and the second external control runner, described one end Q3 of the first external control runner is communicated with the hydraulic fluid port A3 of described solenoid valve, the described the other end Q1 of the first external control runner is communicated with the oil inlet P 2 of described stroke valve, one end Q4 of the second described external control runner is communicated with the control hydraulic fluid port K1 of described pilot operated directional control valve, the described the other end Q2 of the second external control runner is communicated with the hydraulic fluid port B2 of described stroke valve.
Also comprise die cylinder, the hydraulic fluid port A1 of described pilot operated directional control valve is communicated with the rodless cavity of described die cylinder, the hydraulic fluid port B1 of described pilot operated directional control valve is communicated with the rod chamber of described die cylinder, the oil inlet P 3 of described solenoid directional control valve is communicated with the oil inlet P 1 of described pilot operated directional control valve, the oil outlet T3 of described solenoid directional control valve is communicated with the oil outlet T1 of described pilot operated directional control valve, and the control hydraulic fluid port K2 of described pilot operated directional control valve is communicated with the hydraulic fluid port B3 of described solenoid directional control valve.The hydraulic oil stream that after each hydraulic fluid port is communicated with, formation one is complete.
The first described external control runner comprises the first branch flow passage and the second branch flow passage, the first described branch flow passage is perpendicular to the second described branch flow passage and intersect at the first hydraulic fluid port R1, the first described branch flow passage and the second described external control runner are laterally set in parallel on described end cap, the extension of the second described branch flow passage is perpendicular to the second described external control runner and intersect at the second hydraulic fluid port R2, is provided with dismantled and assembled plug between the first described hydraulic fluid port R1 and the second described hydraulic fluid port R2.When dismantled and assembled plug is loaded onto, hydraulic oil flows through the first external control runner and the second external control runner, and realize solenoid directional control valve and directly control stroke valve, stroke valve directly controls pilot operated directional control valve.
Compared with prior art, the utility model has the advantage of and an end cap is provided with the first external control runner and the second external control runner wherein, solenoid directional control valve is connected with stroke valve by the first external control runner, pilot operated directional control valve is connected with stroke valve by the second external control runner, thus realize solenoid directional control valve and directly control stroke valve, stroke valve directly controls pilot operated directional control valve, arrive the folding controlling safety door, compared to the safety-door device of traditional installation transition iron block, the utility model is without the need to additional processing transition block, the man-hour needed for processing transition iron block and expense are saved, eliminate and connect Sealing and transition iron block needed for transition iron block internal-external locus of control runner and electro-hydraulic reversing valve hydraulic fluid port, reduce cost of production, omitting transition iron block makes protective gear volume greatly reduce, compact structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art;
Fig. 2 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
A kind of safety door protective gear as shown in Figure 2, comprise stroke valve 1 and electro-hydraulic reversing valve, electro-hydraulic reversing valve comprises solenoid directional control valve 2 and pilot operated directional control valve 3, pilot operated directional control valve 3 left and right sides has end cap, one of them end cap is provided with the first external control runner 4 and the second external control runner 5, one end Q3 of the first external control runner 4 is communicated with the hydraulic fluid port A3 of solenoid valve, the other end Q1 of the first external control runner 4 is communicated with the oil inlet P 2 of stroke valve 1, one end Q4 of the second external control runner 5 is communicated with the control hydraulic fluid port K1 of pilot operated directional control valve 3, the other end Q2 of the second external control runner 5 is communicated with the hydraulic fluid port B2 of stroke valve 1.
In this particular embodiment, also comprise die cylinder 6, the hydraulic fluid port A1 of pilot operated directional control valve 3 is communicated with the rodless cavity 61 of die cylinder 6, the hydraulic fluid port B1 of pilot operated directional control valve 3 is communicated with the rod chamber 62 of die cylinder 6, the oil inlet P 3 of solenoid directional control valve 2 is communicated with the oil inlet P 1 of pilot operated directional control valve 3, the oil outlet T3 of solenoid directional control valve 2 is communicated with the oil outlet T1 of pilot operated directional control valve 3, and the control hydraulic fluid port K2 of pilot operated directional control valve 3 is communicated with the hydraulic fluid port B3 of solenoid directional control valve 2.
In this particular embodiment, first external control runner 4 comprises the first branch flow passage 41 and the second branch flow passage 42, first branch flow passage 41 is perpendicular to the second branch flow passage 42 and intersect at the first hydraulic fluid port R1, first branch flow passage 41 and the second external control runner 5 are laterally set in parallel on end cap, the extension of the second branch flow passage 42 is perpendicular to the second external control runner 5 and intersect at the second hydraulic fluid port R2, is provided with dismantled and assembled plug 7 between the first hydraulic fluid port R1 and the second hydraulic fluid port R2.
Claims (3)
1. a safety door protective gear, comprise stroke valve and electro-hydraulic reversing valve, described electro-hydraulic reversing valve comprises solenoid directional control valve and pilot operated directional control valve, the described pilot operated directional control valve left and right sides has end cap, it is characterized in that the end cap described in one of them being provided with the first external control runner and the second external control runner, described one end Q3 of the first external control runner is communicated with the hydraulic fluid port A3 of described solenoid directional control valve, the described the other end Q1 of the first external control runner is communicated with the oil inlet P 2 of described stroke valve, one end Q4 of the second described external control runner is communicated with the control hydraulic fluid port K1 of described pilot operated directional control valve, the described the other end Q2 of the second external control runner is communicated with the hydraulic fluid port B2 of described stroke valve.
2. a kind of safety door protective gear according to claim 1, characterized by further comprising die cylinder, the hydraulic fluid port A1 of described pilot operated directional control valve is communicated with the rodless cavity of described die cylinder, the hydraulic fluid port B1 of described pilot operated directional control valve is communicated with the rod chamber of described die cylinder, the oil inlet P 3 of described solenoid directional control valve is communicated with the oil inlet P 1 of described pilot operated directional control valve, the oil outlet T3 of described solenoid directional control valve is communicated with the oil outlet T1 of described pilot operated directional control valve, the control hydraulic fluid port K2 of described pilot operated directional control valve is communicated with the hydraulic fluid port B3 of described solenoid directional control valve.
3. a kind of safety door protective gear according to claim 1; it is characterized in that the first described external control runner comprises the first branch flow passage and the second branch flow passage; the first described branch flow passage is perpendicular to the second described branch flow passage and intersect at the first hydraulic fluid port R1; the first described branch flow passage and the second described external control runner are laterally set in parallel on described end cap; the extension of the second described branch flow passage is perpendicular to the second described external control runner and intersect at the second hydraulic fluid port R2, is provided with dismantled and assembled plug between the first described hydraulic fluid port R1 and the second described hydraulic fluid port R2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420380234.9U CN204061387U (en) | 2014-07-10 | 2014-07-10 | A kind of safety door protective gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420380234.9U CN204061387U (en) | 2014-07-10 | 2014-07-10 | A kind of safety door protective gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204061387U true CN204061387U (en) | 2014-12-31 |
Family
ID=52202913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420380234.9U Expired - Fee Related CN204061387U (en) | 2014-07-10 | 2014-07-10 | A kind of safety door protective gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204061387U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165880A (en) * | 2017-06-30 | 2017-09-15 | 燕山大学 | A kind of ultra-high pressure high flow electro-hydraulic reversing valve |
-
2014
- 2014-07-10 CN CN201420380234.9U patent/CN204061387U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165880A (en) * | 2017-06-30 | 2017-09-15 | 燕山大学 | A kind of ultra-high pressure high flow electro-hydraulic reversing valve |
| CN107165880B (en) * | 2017-06-30 | 2018-07-27 | 燕山大学 | A kind of ultra-high pressure high flow electro-hydraulic reversing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO JINGQIONG MACHINERY MANUFACTURING CO. LTD. Free format text: FORMER NAME: NINGBO NEW HAITAI PLASTIC MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 315113 Zhejiang city of Ningbo province Yinzhou District east Wu Village Patentee after: NINGBO JINGQIONG MACHINERY MANUFACTURING CO., LTD. Address before: 315113 Zhejiang city of Ningbo province Yinzhou District east Wu Village Patentee before: Ningbo Xinhaitai Plastic Machinery Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20190710 |