CN201764087U - Position feedback device applied to three-position four-way rotary valve - Google Patents
Position feedback device applied to three-position four-way rotary valve Download PDFInfo
- Publication number
- CN201764087U CN201764087U CN2010205263903U CN201020526390U CN201764087U CN 201764087 U CN201764087 U CN 201764087U CN 2010205263903 U CN2010205263903 U CN 2010205263903U CN 201020526390 U CN201020526390 U CN 201020526390U CN 201764087 U CN201764087 U CN 201764087U
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- rotary valve
- way rotary
- feedback device
- explosion
- position feedback
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Abstract
The utility model relates to a position feedback device applied to a three-position four-way rotary valve, which comprises a trigger plate equipped on the handle of the three-position four-way rotary valve and a plurality of sensing devices equipped on the three-position four-way rotary valve. Each sensing device comprises an explosion-proof proximity switch. One end of the explosion-proof proximity switch is connected with an outside PLC (Programmable Logic Controller) while the other end is corresponding to the trigger plate. The position feedback device which cuts the magnetic field induction area generated by the explosion-proof proximity switch through the trigger plate equipped on the rotary valve handle enables the operator to monitor the position of the three-position four-way rotary valve handle and finally determine the open or close state of the three-position four-way rotary valve. The position feedback device which is simple in structure and convenient in operation has the advantages of good stability, high safety, repeated use, relatively long service life and excellent market value.
Description
Technical field
The utility model relates to a kind of position feedback device, is specifically related to a kind of position feedback device that is used for the 3-position 4-way rotary valve.
Background technique
By can both being operated personnel constantly, the important rotary valve parts that guarantee the ground preventer remote console monitored, when the state of valve member changes, need the site operation personnel in time to understand its important residing state, to avoid the generation of accident, the rotary valve position feedback mode of Cai Yonging traditionally, be to realize by the piston in the cylinder of monitoring promotion rotary valve, its structure is comparatively complicated, operability is relatively poor, the method danger of monitoring is higher, and installation and maintenance are comparatively loaded down with trivial details, are unfavorable for that operator monitor the state of rotary valve efficiently.
The model utility content
The purpose of this utility model provides a kind of position feedback device that is used for the 3-position 4-way rotary valve, this position feedback device is by being arranged at the explosion-proof magnetic field induction district near the switch generation of trigger board cutting of rotary valve handle, thereby operator can monitor the position of 3-position 4-way rotary valve handle, the final state of opening position or off-position of determining the 3-position 4-way rotary valve, this position feedback device is simple in structure, be convenient to operation, and good stability, safe, can reuse, and working life is higher, has good market value.For achieving the above object, the technical solution of the utility model provides a kind of position feedback device that is used for the 3-position 4-way rotary valve, and this position feedback device comprises:
Be arranged on the trigger board at 3-position 4-way rotary valve handle place;
Some induction installations that are arranged on the 3-position 4-way rotary valve;
This induction installation comprises: explosion-proof near switch, the one end is connected to outside PLC(Programmable logic Controller, programmable logic controller (PLC) by cable), the other end is corresponding to trigger board.
The above-mentioned position feedback device that is used for the 3-position 4-way rotary valve, wherein, described induction installation comprises: be wrapped in explosion-proof protection housing near switch, cable outside;
Describedly explosion-proofly expose a protection housing part corresponding to an end of trigger board near switch;
The explosion-proof end near switch that is not connected to of described cable stretches out the protection housing and is connected with outside PLC.
The above-mentioned position feedback device that is used for the 3-position 4-way rotary valve, wherein, described induction installation also comprises: be sleeved on explosion-proof near the protecting jacket of switch corresponding to trigger board one end;
Described induction installation exposes protecting jacket corresponding to the face of trigger board.
The above-mentioned position feedback device that is used for the 3-position 4-way rotary valve, wherein, described induction installation also comprises: the tail cover that is sleeved on protection housing one end that cable stretches out.
The above-mentioned position feedback device that is used for the 3-position 4-way rotary valve wherein, near the switch both sides, respectively is provided with gap between protecting jacket and the protection housing explosion-proof;
Be respectively arranged with spacer in described each gap.
The above-mentioned position feedback device that is used for the 3-position 4-way rotary valve wherein, also comprises a mounting plate that is arranged on the 3-position 4-way rotary valve, and described induction installation is installed in the both sides of this mounting plate respectively.
The above-mentioned position feedback device that is used for the 3-position 4-way rotary valve, wherein, described induction installation is fixedly mounted on the mounting plate by some locking nuts.
The above-mentioned position feedback device that is used for the 3-position 4-way rotary valve wherein, between described mounting plate and the locking nut, also is provided with some spring washers.
The above-mentioned position feedback device that is used for the 3-position 4-way rotary valve, wherein, described protecting jacket outer installment has the grid decorative pattern.
The position feedback device of a kind of 3-position 4-way rotary valve of the utility model adopts novel structural design, open position or off-position state by what thereby the explosion-proof field region near switch of trigger board cutting that is arranged at this rotary valve handle place was further located this 3-position 4-way rotary valve, because susceptibility is higher, make its stability better, the reliability height; And the outer installment at protecting jacket has the grid decorative pattern, is convenient to dismounting and adjustment; In addition, between protecting jacket and protecting sheathing, be provided with spacer, be used to adjust distance near between switch and the trigger board; This utilization ratio of device is higher, and equipment is easy to use, and is reusable, and working life is longer, convenient for installation and maintenance, has good market value.
Description of drawings
Fig. 1 is a kind of position feedback device structural representation that is used for the 3-position 4-way rotary valve of the utility model.
Embodiment
Below in conjunction with Fig. 1, describe a preferred embodiment of the present utility model in detail.
As shown in Figure 1, Fig. 1 is a kind of position feedback device structural representation that is used for the 3-position 4-way rotary valve of the utility model.This position feedback device comprises: be arranged on 3-position 4-way rotary valve handle place trigger board 1,
Some (being two in this embodiment) are arranged on the induction installation 2 on the 3-position 4-way rotary valve; This induction installation 2 is vertically mounted on the both sides of a mounting plate 3, and this mounting plate 3 is installed on the 3-position 4-way rotary valve.Mounting plate 3 is respectively equipped with two locking nuts 4 with each induction installation 2 position contacting, and this locking nut 4 is used for sealed mounting plate 3 and induction installation 2; Be respectively arranged with some spring washers 5 between mounting plate 3 and locking nut 4, this spring washer 5 is used for preventing the loosening of nut.
The end that cable 22 stretches out protection housing 23 is set with the tail cover 26 that nylon is made, and this tail cover 26 is used to prevent that cable 22 and protection housing 23 from bumping, and has improved Security.
After the handle of 3-position 4-way rotary valve was pulled, trigger board 1 can be moved together along with the handle of 3-position 4-way rotary valve, and moving direction and distance are identical with handle.Can produce certain induction field owing to explosion-proof near switch 21, when trigger board 1 move to explosion-proof near switch 21 before, after having cut its induction field, the digital quantity signal of transmission " 1 " that induction installation 2 can continue is given the PLC that is connected in cable one end, after trigger board 1 is away from explosion-proof magnetic field induction district near switch 21, the digital quantity signal " 1 " that originally continues to be transferred to PLC will no longer transmit.Thus, can monitor the position of 3-position 4-way rotary valve handle, open or closing state thereby finally definite 3-position 4-way rotary valve is at present by the position of trigger board 1.
A kind of position feedback device that is used for the 3-position 4-way rotary valve of the utility model adopts novel structural design, open position or off-position state by what thereby this 3-position 4-way rotary valve was further located in the explosion-proof magnetic field near switch 21 of trigger board 1 cutting, because susceptibility is higher, make its stability better, the reliability height, and this utilization ratio of device is higher, equipment is easy to use, and is reusable, and working life is longer, convenient for installation and maintenance, have good market value.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple modification of the present utility model with to substitute all will be conspicuous.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (9)
1. a position feedback device that is used for the 3-position 4-way rotary valve is characterized in that, this position feedback device comprises:
Be arranged on the trigger board (1) at 3-position 4-way rotary valve handle place;
Some induction installations (2) that are arranged on the 3-position 4-way rotary valve;
This induction installation (2) comprises: explosion-proof near switch (21), the one end is connected to outside PLC by cable (22), and the other end is corresponding to trigger board (1).
2. the position feedback device that is used for the 3-position 4-way rotary valve as claimed in claim 1 is characterized in that, described induction installation (2) comprises: be wrapped in explosion-proof near switch (21), the outside protection housing (23) of cable (22);
Describedly explosion-proofly expose protection housing (a 23) part corresponding to an end of trigger board (1) near switch (21);
The explosion-proof end near switch (21) that is not connected to of described cable (22) stretches out protection housing (23) and is connected with outside PLC.
3. the position feedback device that is used for the 3-position 4-way rotary valve as claimed in claim 2 is characterized in that, described induction installation (2) also comprises: be sleeved on explosion-proof near the protecting jacket (24) of switch (21) corresponding to trigger board (1) one end;
Described induction installation (2) exposes protecting jacket (24) corresponding to the face of trigger board (1).
4. the position feedback device that is used for the 3-position 4-way rotary valve as claimed in claim 3 is characterized in that, described induction installation (2) also comprises: the tail cover (26) that is sleeved on protection housing (23) one ends that cable (22) stretches out.
5. the position feedback device that is used for the 3-position 4-way rotary valve as claimed in claim 4 is characterized in that, near switch (21) both sides, between protecting jacket (24) and the protection housing (23) gap is set explosion-proof respectively;
Be respectively arranged with spacer (25) in described each gap.
6. the position feedback device that is used for the 3-position 4-way rotary valve as claimed in claim 5 is characterized in that, also comprises a mounting plate (3) that is arranged on the 3-position 4-way rotary valve, and described induction installation (2) is installed in the both sides of this mounting plate (3) respectively.
7. the position feedback device that is used for the 3-position 4-way rotary valve as claimed in claim 6 is characterized in that, described induction installation (2) is fixedly mounted on the mounting plate (3) by some locking nuts (4).
8. the position feedback device that is used for the 3-position 4-way rotary valve as claimed in claim 7 is characterized in that, between described mounting plate (3) and the locking nut (4), also is provided with some spring washers (5).
9. the position feedback device that is used for the 3-position 4-way rotary valve as claimed in claim 8 is characterized in that, described protecting jacket (24) outer installment has the grid decorative pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205263903U CN201764087U (en) | 2010-09-13 | 2010-09-13 | Position feedback device applied to three-position four-way rotary valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205263903U CN201764087U (en) | 2010-09-13 | 2010-09-13 | Position feedback device applied to three-position four-way rotary valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201764087U true CN201764087U (en) | 2011-03-16 |
Family
ID=43716692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205263903U Expired - Lifetime CN201764087U (en) | 2010-09-13 | 2010-09-13 | Position feedback device applied to three-position four-way rotary valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201764087U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747773A (en) * | 2015-03-16 | 2015-07-01 | 西安交通大学 | Flow-adjustable unilateral plate-type three-position four-way rotary valve |
-
2010
- 2010-09-13 CN CN2010205263903U patent/CN201764087U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747773A (en) * | 2015-03-16 | 2015-07-01 | 西安交通大学 | Flow-adjustable unilateral plate-type three-position four-way rotary valve |
| CN104747773B (en) * | 2015-03-16 | 2017-02-22 | 西安交通大学 | Flow-adjustable unilateral plate-type three-position four-way rotary valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110316 |
|
| CX01 | Expiry of patent term |