CN212318875U - Pilot-operated overflow valve - Google Patents
Pilot-operated overflow valve Download PDFInfo
- Publication number
- CN212318875U CN212318875U CN202020824940.3U CN202020824940U CN212318875U CN 212318875 U CN212318875 U CN 212318875U CN 202020824940 U CN202020824940 U CN 202020824940U CN 212318875 U CN212318875 U CN 212318875U
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- CN
- China
- Prior art keywords
- pilot
- pvc
- fixed
- valve
- driving motor
- Prior art date
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- Expired - Fee Related
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- 239000007788 liquid Substances 0.000 claims abstract description 22
- 239000000523 sample Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000006837 decompression Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model discloses a pilot operated overflow valve, including valve body, feed liquor pipe, drain pipe, main valve core and pilot valve core, pilot valve core one end has the piston through spring coupling, piston one end is connected with the fixed block through the guide pillar that runs through in the valve body, the welding of valve body top one end has the fixed box of PVC, driving motor is installed through the bolt at the top in the fixed box of PVC, the fixed box one end of PVC is fixed with wireless remote control switch through the connecting rod, wireless remote control switch's electric power output end passes through the wire with driving motor's electric power input end and constitutes the electricity and be connected. The utility model discloses can conveniently lock the pilot valve core when need not carrying out the overflow protection, can report to the police when the pressure of the liquid of play liquid end is too big to suggestion personnel overflow valve does not play the decompression effect, carries out early maintenance to the overflow valve, can also conveniently walk the line, is fit for being extensively promoted and uses.
Description
Technical Field
The utility model relates to an overflow valve technical field, in particular to guide's formula overflow valve.
Background
The overflow valve is a common valve, can prevent the hydraulic oil pressure in a hydraulic system from exceeding a rated load, and plays a role in safety protection, wherein the pilot overflow valve is also widely applied.
Patent number CN201420006719.1 discloses a pilot-operated overflow valve, which includes a main valve, a pilot valve axially connected to the main valve, and an elastic washer disposed at the joint of the main valve and the pilot valve and used for buffering the axial interaction force between the main valve and the pilot valve, wherein the outer surface of the oil inlet of the main valve has a first annular groove, a first sealing ring is disposed in the first annular groove, and a retaining ring is disposed on one side of the first sealing ring close to the pilot valve and used for relieving the friction between the first sealing ring and the main valve. In this way, the utility model discloses can make being connected between main valve and the pilot valve more firm and can alleviate the wearing and tearing of first sealing member, improve sealed reliability.
The overflow valve has the following disadvantages: 1. the pilot valve core cannot be conveniently locked when the overflow protection is not needed; 2. the alarm can not be given when the pressure of the liquid at the liquid outlet end is too high, so that the staff is prompted that the overflow valve does not play a role in reducing pressure, and the overflow valve is maintained as early as possible; 3. wiring cannot be performed conveniently. To this end, we propose a pilot operated relief valve.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a pilot operated overflow valve which can effectively solve the problems of the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a pilot overflow valve comprises a valve body, a liquid inlet pipe, a liquid outlet pipe, a main valve element and a pilot valve element, wherein one end of the pilot valve element is connected with a piston through a spring, one end of the piston is connected with a fixed block through a guide pillar penetrating through the valve body, one end of the top of the valve body is welded with a PVC fixed box, the top of the PVC fixed box is provided with a driving motor through a bolt, one end of the PVC fixed box is fixed with a wireless remote control switch through a connecting rod, the power output end of the wireless remote control switch is electrically connected with the power input end of the driving motor through a wire, the bottom and one side of the top end of the valve body are respectively fixed with a first wiring groove and a second wiring groove through fastening screws, the power output end of the driving motor penetrates through the PVC fixed box, the end of the driving motor is welded with a fixed disc, the, the detection end of the pressure alarm is a detection probe which is fixed at the bottom in the liquid outlet pipe through screws.
Furthermore, the signal output end of the detection probe is connected with the signal input end of the pressure alarm through a data transmission line, the data transmission line is located in the first wiring groove, the power supply terminal of the driving motor is connected with a power supply wiring, and the power supply wiring penetrates through the PVC fixing box and is located in the second wiring groove.
Furthermore, the inner surfaces of the liquid inlet pipe and the liquid outlet pipe are provided with epoxy resin coatings.
Further, one end of the top of the PVC fixing box is provided with a heat dissipation hole.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. through setting up wireless remote control switch, driving motor, fixed disk and spacing fixture block, personnel utilize the remote controller supporting with wireless remote control switch to send remote control signal to wireless remote control switch, just can just carry out just reversing and opening the stop control to the driving motor who links to each other with its electrical property after wireless remote control switch receives the signal, driving motor during operation power take off end drives the fixed disk and rotates, thereby utilize the rotation of fixed disk when needs unblock, with spacing fixture block rotate to can not produce the angle of interfering to the fixed block, and then the unblock, and when the fixed block resets, utilize the limiting displacement of spacing fixture block to the fixed block, can lock the pilot valve core when need not carrying out overflow protection.
2. Through setting up pressure alarm and test probe, utilize test probe convenience to detect the pressure through the liquid in the drain pipe to transmit the pressure alarm with the signal via data transmission line, pressure alarm carries out analysis processes the back to numerical value, if the pressure value is greater than the setting value, will send the police dispatch newspaper sound and remind personnel, thereby be convenient for suggestion personnel overflow valve does not play the decompression effect, carries out early maintenance to the overflow valve.
3. Through setting up first trough and second trough, utilize first trough and second trough to make things convenient for the data transmission line of pressure alarm and driving motor's power supply wiring to walk the line, promote the practicality greatly.
Drawings
Fig. 1 is the overall structure schematic diagram of the pilot operated overflow valve of the present invention.
Fig. 2 is the utility model relates to a first trough and second trough of guide's formula overflow valve look sideways at structural schematic.
Fig. 3 is a schematic view of a driving motor of the pilot operated overflow valve of the present invention.
In the figure: 1. a valve body; 2. a liquid inlet pipe; 3. a liquid outlet pipe; 4. a main valve element; 5. a pilot valve spool; 6. a fixed block; 7. a piston; 8. a guide post; 9. a limiting clamping block; 10. fixing the disc; 11. a PVC fixing box; 12. a wireless remote control switch; 13. detecting a probe; 14. a pressure alarm; 15. a first wiring duct; 16. a second wiring duct; 17. fastening screws; 18. the motor is driven.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1-3, a pilot operated overflow valve comprises a valve body 1, a liquid inlet pipe 2, a liquid outlet pipe 3, a main valve element 4 and a pilot operated valve element 5, wherein one end of the pilot operated valve element 5 is connected with a piston 7 through a spring, one end of the piston 7 is connected with a fixed block 6 through a guide post 8 penetrating through the valve body 1, one end of the top of the valve body 1 is welded with a PVC fixing box 11, the top of the PVC fixing box 11 is provided with a driving motor 18 through a bolt, one end of the PVC fixing box 11 is fixed with a wireless remote control switch 12 through a connecting rod, the power output end of the wireless remote control switch 12 is electrically connected with the power input end of the driving motor 18 through a wire, one side of the bottom and the top of the valve body 1 is respectively fixed with a first wire slot 15 and a second wire slot 16 through a fastening screw 17, the power output end of the, fixed disk 10 bottom is connected with spacing fixture block 9 and spacing fixture block 9 is located the 6 outsides of fixed block, there is pressure alarm 14 valve body 1 bottom one side through the mounting screw, pressure alarm 14's sense terminal is 13 and 13 bottom in the drain pipe 3 of test probe through the screw fixation.
The signal output end of the detection probe 13 is connected with the signal input end of the pressure alarm 14 through a data transmission line, the data transmission line is located in the first wiring groove 15, the power supply terminal of the driving motor 18 is connected with a power supply wiring, and the power supply wiring penetrates through the PVC fixing box 11 and is located in the second wiring groove 16.
In this embodiment, as shown in fig. 1, fig. 2, and fig. 3, the first wiring groove 15 and the second wiring groove 16 are used to facilitate wiring of the data transmission line of the pressure alarm 14 and the power supply wiring of the driving motor 18, which greatly improves the practicability.
Wherein, the inner surfaces of the liquid inlet pipe 2 and the liquid outlet pipe 3 are provided with epoxy resin coatings.
In this embodiment, as shown in fig. 1, the coating made of epoxy resin can reduce the internal resistance of liquid passing through the inner surfaces of the liquid inlet pipe 2 and the liquid outlet pipe 3.
Wherein, a heat dissipation hole is arranged at one end of the top of the PVC fixing box 11.
In this embodiment, as shown in fig. 1, the heat dissipation holes are used to facilitate heat dissipation of the driving motor 18 installed at the top inside the PVC fixing box 11.
It should be noted that the utility model relates to a pilot operated overflow valve, during operation, personnel can send remote control signals to the wireless remote control switch 12 by using a remote controller matched with the wireless remote control switch 12, the wireless remote control switch 12 (manufactured by Shenzhen Tuyanda electronics limited company, model TAD-T70A-T-1000) can perform forward and reverse rotation and start and stop control on the driving motor 18 electrically connected with the wireless remote control switch 12 after receiving the signals, the power output end drives the fixed disk 10 to rotate when the driving motor 18 works, thereby when unlocking is required, the rotation of the fixed disk 10 is used to rotate the limiting fixture block 9 to an angle which can not generate interference on the fixed block 6, and further unlocking is performed, when the fixed block 6 is reset, the limiting function of the fixed block 9 on the fixed block 6 is used to lock the pilot operated valve core 5 when overflow protection is not required, the detection probe 13 is used to conveniently detect the pressure of liquid passing through the drain pipe 3, and the signal is transmitted to the pressure alarm 14 through the data transmission line, after the pressure alarm 14 (YLS-100M integrated with a detection probe and an alarm, produced by Youyakka technology Co., Ltd.) analyzes and processes the numerical value, if the pressure value is greater than a set value, an alarm sound is sent to remind personnel, so that the personnel are prompted that the overflow valve does not have a decompression function, the overflow valve is maintained as early as possible, the data transmission line of the pressure alarm 14 and the power supply wiring of the driving motor 18 are conveniently wired by utilizing the first wiring groove 15 and the second wiring groove 16, and the practicability is greatly improved.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a pilot-operated overflow valve, includes valve body (1), feed liquor pipe (2), drain pipe (3), main valve core (4) and pilot valve core (5), its characterized in that: one end of the pilot valve core (5) is connected with a piston (7) through a spring, one end of the piston (7) is connected with a fixed block (6) through a guide post (8) penetrating through the valve body (1), one end of the top of the valve body (1) is welded with a PVC fixed box (11), the top of the inner part of the PVC fixed box (11) is provided with a driving motor (18) through a bolt, one end of the PVC fixed box (11) is fixed with a wireless remote control switch (12) through a connecting rod, the power output end of the wireless remote control switch (12) is electrically connected with the power input end of the driving motor (18) through a wire, the bottom and one side of the top end of the valve body (1) are respectively fixed with a first wiring groove (15) and a second wiring groove (16) through a fastening screw (17), the power output end of the driving motor (18) penetrates through the PVC fixed box, fixed disk (10) bottom is connected with spacing fixture block (9) and is located fixed block (6) outside, there is pressure alarm (14) valve body (1) bottom one side through the mounting screw, the sense terminal of pressure alarm (14) is bottom in test probe (13) and test probe (13) are fixed in drain pipe (3) through the screw.
2. The pilot operated relief valve according to claim 1, characterized in that: the signal output part of the detection probe (13) is connected with the signal input part of the pressure alarm (14) through a data transmission line, the data transmission line is located in the first wiring groove (15), the power supply terminal of the driving motor (18) is connected with a power supply wiring, and the power supply wiring runs through the PVC fixing box (11) and is located in the second wiring groove (16).
3. The pilot operated relief valve according to claim 1, characterized in that: and epoxy resin coatings are arranged on the inner surfaces of the liquid inlet pipe (2) and the liquid outlet pipe (3).
4. The pilot operated relief valve according to claim 1, characterized in that: one end of the top of the PVC fixing box (11) is provided with a heat dissipation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020824940.3U CN212318875U (en) | 2020-05-18 | 2020-05-18 | Pilot-operated overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020824940.3U CN212318875U (en) | 2020-05-18 | 2020-05-18 | Pilot-operated overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212318875U true CN212318875U (en) | 2021-01-08 |
Family
ID=74023289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020824940.3U Expired - Fee Related CN212318875U (en) | 2020-05-18 | 2020-05-18 | Pilot-operated overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212318875U (en) |
-
2020
- 2020-05-18 CN CN202020824940.3U patent/CN212318875U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210108 |