CN210207394U - Piezoelectric type injection valve capable of being automatically calibrated - Google Patents
Piezoelectric type injection valve capable of being automatically calibrated Download PDFInfo
- Publication number
- CN210207394U CN210207394U CN201920220034.XU CN201920220034U CN210207394U CN 210207394 U CN210207394 U CN 210207394U CN 201920220034 U CN201920220034 U CN 201920220034U CN 210207394 U CN210207394 U CN 210207394U
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- valve body
- fluid channel
- nozzle
- top end
- injection valve
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Abstract
The utility model discloses an automatic calibration piezoelectric injection valve, which comprises a charging barrel, a fluid channel and an injection valve body, the charging barrel comprises a feeding joint and a sealing ring, the middle position of the bottom surface of the charging barrel is provided with the feeding joint, the fluid channel comprises a plugging screw, a nozzle and two groups of fixing screws, the left side edge of the fluid channel is provided with the plugging screw, and the middle position of the bottom surface of the fluid channel is provided with a nozzle, the top end of the right side of the fluid channel is provided with two groups of fixing screws, the top ends of the two groups of fixing screws are connected with a jet valve body, the jet valve body comprises a joint, a calibration nut, a slide block and piezoelectric ceramics, the jet valve body also comprises an amplifying rod, a reset spring, a guide post and a firing pin, the utility model discloses a can realize valve body upper portion calibration, die the lock of nozzle fixation nut earlier, rethread valve body top adjusting nut realizes the calibration.
Description
Technical Field
The utility model belongs to the technical field of the injection valve and specifically relates to an automatic piezoelectric type injection valve of calibration.
Background
The injection valve utilizes the characteristics of piezoelectric materials, generates mechanical force through voltage, and opens when the piezoelectric materials below are charged; when the overlying piezoelectric material is charged, the valve closes. Because the space for opening and closing the valve is extremely small, the action frequency is extremely high, and extremely trace liquid materials can be ejected at high speed.
The traditional piezoelectric injection valve is matched with a nozzle and a firing pin by rotating an adjusting nut, the position is below, the adjustment is inconvenient, threads are not locked, and the threads are easy to loosen, so that the piezoelectric injection valve with automatic calibration is provided.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.
A self-calibrating piezoelectric injection valve includes a cartridge, a fluid passage, and an injection valve body.
The feeding joint is arranged in the middle of the bottom surface of the charging barrel and is connected with the top end of the left side of the fluid channel, the fluid channel comprises a blocking screw, a nozzle and two groups of fixing screws, the blocking screw is arranged on the side edge of the left side of the fluid channel, the nozzle is arranged in the middle of the bottom surface of the fluid channel and comprises a fixing nut, the two groups of fixing screws are arranged on the top end of the right side of the fluid channel, and the top ends of the two groups of fixing screws are connected with the injection valve body;
the jet valve body comprises a joint, a calibration nut, a sliding block and piezoelectric ceramics, the joint is arranged at the left top end of the surface of the jet valve body, the calibration nut is arranged at the middle position of the top end of the jet valve body, the sliding block is arranged at the top end inside the jet valve body and connected with the piezoelectric ceramics, the jet valve body further comprises an amplifying rod, a reset spring, a guide post and a firing pin, the amplifying rod is horizontally arranged at the middle position inside the jet valve body, the right side of the amplifying rod is connected with the piezoelectric ceramics, the bottom surface at the left side of the amplifying rod is connected with the guide post, the firing pin is arranged at the middle position inside the guide post, and the bottom end of the firing pin is located inside the nozzle.
Preferably, a sealing ring is arranged at the joint of the fluid channel and the feeding joint.
Preferably, the retaining nut is located inside the nozzle.
Preferably, the surface of the guide post is sleeved with a return spring.
Compared with the prior art, the beneficial effects of the utility model are that: can realize valve body upper portion calibration, die the lock of nozzle fixation nut earlier, rethread valve body top adjusting nut realizes the calibration, piezoceramics can realize high-frequency vibration under the signal of telecommunication drive, high-frequency vibration realizes displacement amplification after enlargiing through enlarging the pole, enlarging the pole and driving firing pin high frequency reciprocating vibration, striking nozzle, fluid atress in the nozzle, overcome fluid tension, realize the injection, fixation nut can die the lock, correct through above-mentioned calibration nut, can prevent that the nut is not hard up after the vibration, the above-mentioned calibration is also convenient operation.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic diagram of a self-calibrating piezo injector valve.
Shown in the figure: 1. the device comprises a material cylinder, 2, a discharging joint, 3, a sealing ring, 4, a fluid channel, 5, a blocking screw, 6, a joint, 7, a calibration nut, 8, a sliding block, 9, piezoelectric ceramics, 10, an amplifying rod, 11, a return spring, 12, a fixing screw, 13, a firing pin, 14, a guide column, 15, a fixing nut, 16, a nozzle, 17 and an injection valve body.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, an automatic calibration piezoelectric injection valve includes a cylinder 1, a fluid passage 4, and an injection valve body 17.
The feed cylinder 1 comprises a feed connector 2 and a sealing ring 4, the feed connector 2 is arranged in the middle of the bottom surface of the feed cylinder 1, the feed connector 2 is connected with the top end of the left side of a fluid channel 4, the sealing ring 4 is arranged at the joint of the fluid channel 4 and the feed connector 2, leakage of the feed connector 2 during feeding is prevented, the fluid channel 4 comprises a blocking screw 5, a nozzle 16 and two groups of fixing screws 12, the blocking screw 5 is arranged on the left side edge of the fluid channel 4, the nozzle 16 is arranged in the middle of the bottom surface of the fluid channel 4, the nozzle 16 comprises a fixing nut 15, the fixing nut 15 is positioned inside the nozzle 16, the two groups of fixing screws 12 are arranged at the top end of the right side of the fluid channel 4, and the top ends of the two groups of fixing screws 12 are connected with an injection valve body;
the jet valve body 17 comprises a joint 6, a calibration nut 7, a slider 8 and piezoelectric ceramics 9, the joint 6 is arranged at the top end of the left side of the surface of the jet valve body 17, the calibration nut 7 is arranged at the middle position of the top end of the jet valve body 17, the slider 8 is arranged at the top end of the interior of the jet valve body 17, the slider 8 is connected with the piezoelectric ceramics 9, the jet valve body 17 further comprises an amplifying rod 10, a return spring 11, a guide post 14 and a firing pin 13, the amplifying rod 10 is flatly placed at the middle position of the interior of the jet valve body 17, the right side of the amplifying rod 10 is connected with the piezoelectric ceramics 9, the bottom surface of the left side of the amplifying rod 10 is connected with the guide post 14, the return spring 11 is sleeved on the surface of the guide post 14, the firing pin 13 is arranged at the middle position of the interior of the guide post 14.
The utility model discloses a theory of operation is: the fixed nut 15 in the nozzle 16 is locked firstly, then the calibration is realized through the calibration nut 7 above the injection valve body 17, the piezoelectric ceramic 9 can realize high-frequency vibration under the drive of an electric signal, the high-frequency vibration is amplified by the amplifying rod 10 to realize displacement amplification, the amplifying rod 10 drives the firing pin 13 to vibrate in a high-frequency reciprocating mode to impact the nozzle 16, fluid in the nozzle 16 is stressed, the fluid tension is overcome, and the injection is realized.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (4)
1. The piezoelectric type injection valve capable of automatically calibrating comprises a charging barrel, a fluid channel and an injection valve body, and is characterized in that the charging barrel comprises a feeding connector and a sealing ring, the feeding connector is arranged in the middle of the bottom surface of the charging barrel and is connected with the top end of the left side of the fluid channel, the fluid channel comprises a plugging screw, a nozzle and two groups of fixing screws, the plugging screw is arranged on the side edge of the left side of the fluid channel, the nozzle is arranged in the middle of the bottom surface of the fluid channel and comprises a fixing nut, the top end of the right side of the fluid channel is provided with two groups of fixing screws, and the top ends of the two groups of fixing screws are connected with the injection valve body;
the jet valve body comprises a joint, a calibration nut, a sliding block and piezoelectric ceramics, the joint is arranged at the left top end of the surface of the jet valve body, the calibration nut is arranged at the middle position of the top end of the jet valve body, the sliding block is arranged at the top end inside the jet valve body and connected with the piezoelectric ceramics, the jet valve body further comprises an amplifying rod, a reset spring, a guide post and a firing pin, the amplifying rod is horizontally arranged at the middle position inside the jet valve body, the right side of the amplifying rod is connected with the piezoelectric ceramics, the bottom surface at the left side of the amplifying rod is connected with the guide post, the firing pin is arranged at the middle position inside the guide post, and the bottom end of the firing pin is located inside the nozzle.
2. The piezo injector valve of claim 1, wherein the fluid channel is sealed to the feed connection by a gasket.
3. The self-calibrating piezoelectric injector valve according to claim 1, wherein the retaining nut is located inside the nozzle.
4. The self-aligning piezoelectric injector valve of claim 1 wherein the guide post has a return spring disposed on a surface thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920220034.XU CN210207394U (en) | 2019-02-21 | 2019-02-21 | Piezoelectric type injection valve capable of being automatically calibrated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920220034.XU CN210207394U (en) | 2019-02-21 | 2019-02-21 | Piezoelectric type injection valve capable of being automatically calibrated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210207394U true CN210207394U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920220034.XU Active CN210207394U (en) | 2019-02-21 | 2019-02-21 | Piezoelectric type injection valve capable of being automatically calibrated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210207394U (en) |
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2019
- 2019-02-21 CN CN201920220034.XU patent/CN210207394U/en active Active
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