CN209301888U - A kind of high pressure injector equipped with mechanical brake device - Google Patents
A kind of high pressure injector equipped with mechanical brake device Download PDFInfo
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- CN209301888U CN209301888U CN201821401553.8U CN201821401553U CN209301888U CN 209301888 U CN209301888 U CN 209301888U CN 201821401553 U CN201821401553 U CN 201821401553U CN 209301888 U CN209301888 U CN 209301888U
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- brake
- driven wheel
- brake plate
- lifting rod
- high pressure
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Abstract
The utility model discloses a kind of high pressure injectors equipped with mechanical brake device, comprising: head；Motor, driving wheel, synchronous belt, driven wheel and ball screw are equipped with inside the head；The motor and driving wheel are coaxially disposed, and the driving wheel drives driven wheel to rotate by synchronous belt；The driven wheel drives ball screw rotation；The ball screw drives push rod to move back and forth；It is additionally provided with the brake apparatus for braking driven wheel；The brake apparatus includes brake plate and lifting rod；The brake plate stops driven wheel for pressing from both sides；The lifting rod drives brake plate movement；The switch of the lifting rod connection motor.It the advantage is that, can effectively pass through the brake apparatus high brake pressure syringe of mechanical structure, avoid high pressure injector from running in error conditions and damaged to patient.
Description
Technical field
The utility model relates to field of medical products, and in particular to a kind of high pressure injector equipped with mechanical brake device.
Background technique
Ancillary equipment of the high pressure injector generally as X-ray production apparatus, CT, MRI or other diagnostic equipments.High pressure injector can
In angiocarpy to guarantee in a short time to concentrate contrast medium injection patient, filled in high concentration by inspection position, to absorb medicine
The preferable image of liquid.Contrast medium injection, host exposure and record changer can also be made to change piece three's cooperation simultaneously, to improve
The accuracy of photography and the success rate of radiography.
The drive mechanism of existing high pressure injector is that motor drives the driving wheel rotation being coaxially arranged, and driving wheel is logical
It crosses synchronous belt and drives driven wheel rotation, driven wheel drives ball screw to rotate, feed screw nut is made axially to do reciprocal fortune along screw rod again
It is dynamic, and then realize the reciprocating motion of push rod.
Existing high pressure injector there is no the device that mechanical braking is arranged, is such as sent out in injection process in use
Raw emergency when needing to stop injection process, only relies on controller and injects to head transmission stop signal stopping, this kind of emergency stop
There is following problems for method: first, as because controller signal transmission or circuit error caused by emergency, then stop believing
Possibly it can not be correctly sent to head number in this case, and then make head that can not stop injecting in time；Second, even if head just
It really receives stop signal and simultaneously controls motor stalls, due to the transmission mechanism of above-mentioned high pressure injector, driving wheel and driven
Wheel etc. still has certain rotator inertia, and push rod can be made to continue that segment displacement occurs.In summary two problems, only rely on
When emergency occurs, there is high pressure injector can not be made to stop in time for signal and the high pressure injector of circuit control emergency stop
The possibility of movement contains potential security risk.
Utility model content
In order to solve the above-mentioned problems of the prior art, the utility model aim is to provide a kind of equipped with mechanical braking
The high pressure injector of device；The high pressure injector, which can be stablized, quickly to be stopped injecting process.
A kind of high pressure injector equipped with mechanical brake device described in the utility model, comprising: head；In the head
Portion is equipped with motor, driving wheel, synchronous belt, driven wheel and ball screw；The motor and driving wheel are coaxially disposed, the driving wheel
Driven wheel rotation is driven by synchronous belt；The driven wheel drives ball screw rotation；The ball screw drives push rod reciprocal
Movement；It is additionally provided with the brake apparatus for braking driven wheel；The brake apparatus includes brake plate and lifting rod；The brake plate
Stop driven wheel for pressing from both sides；The lifting rod drives brake plate movement；The switch of the lifting rod connection motor.
Preferably, the brake apparatus includes brake plate and lifting rod；The brake plate is V shaped slab, middle part and head
Hingedly；Two brake plates are symmetricly set on the two sides of driven wheel；The lifting rod connects two brake plates simultaneously, and can edge
Its axially reciprocating.
Preferably, the brake apparatus includes brake plate, pulley, pulley groove and lifting rod；The brake plate is at right angles terraced
Shape, middle part are hinged with head；Brake plate described in two is symmetricly set on driven wheel two sides；The pulley groove is arranged two,
It is separately positioned on two sides of the brake plate with bevel edge；The pulley is arranged two, moves back and forth use along two pulley grooves respectively
In extruding brake plate；The lifting rod is arranged in the same direction with pulley groove, while connecting two pulleys, and moves back and forth with movable pulley.
Preferably, the brake plate is equipped with the friction portion that extending direction is parallel to brake plate bevel edge close to driven wheel side.
Preferably, the lifting rod is equipped with holding section；The head is equipped with compatible in position corresponding with holding section
Engaging slot.
A kind of high pressure injector equipped with mechanical brake device described in the utility model, the advantage is that, pass through machinery
The purpose of brake pushrod is realized in the cooperation of mechanism, and braking is reliable and stable, when the transmission of the signal of high pressure injector or circuit error,
Stopping pushrod movement that can be stable by the brake apparatus, anti-throw-out lever continue to move in error conditions, avoid high pressure injection
Damage is brought to patient when mistake occurs for emitter；Since brake apparatus is arranged at driven wheel, can be effectively reduced in braking
The rotator inertia of each driving member, further increases braking effect in braking process；Simultaneously as using the braking of mechanical structure
Device has been simply turned off motor power in braking process, makes high pressure injector other systems still in open state, will not be to height
Data in pressure injection emitter other systems have an impact, and facilitate and subsequent are studied according to data error reason.
Detailed description of the invention
Fig. 1 is a kind of structural representation of high pressure injector embodiment one equipped with mechanical brake device described in the utility model
Figure.
Fig. 2 is the structural schematic diagram of location A in Fig. 1.
Fig. 3 is a kind of structural representation of high pressure injector embodiment two equipped with mechanical brake device described in the utility model
Figure.
Fig. 4 is a kind of another state of high pressure injector embodiment two equipped with mechanical brake device described in the utility model
Structural schematic diagram.
Description of symbols: 1- head, 11- engaging slot, 2- motor, 3- driving wheel, 4- synchronous belt, 5- driven wheel, 6- rolling
Ballscrew, 7- brake apparatus, 71- brake plate, 72- lifting rod, the holding section 721-, 73- pulley, 74- pulley groove.
Specific embodiment
As shown in Figure 1, a kind of high pressure injector equipped with mechanical brake device described in the utility model, comprising: head
1；Motor 2, driving wheel 3, synchronous belt 4, driven wheel 5 and ball screw 6 are equipped in head；Motor 2 and driving wheel 3 are coaxially disposed,
Driving wheel 3 drives driven wheel 5 to rotate by synchronous belt 4；Driven wheel 5 drives ball screw 6 to rotate；Ball screw 6 drives push rod
It moves back and forth；It is characterized in that, being additionally provided with the brake apparatus 7 for braking driven wheel 5；Brake apparatus 7 includes 71 He of brake plate
Lifting rod 72；Brake plate 71 stops driven wheel 5 for pressing from both sides；Lifting rod 72 drives brake plate 71 to move；Lifting rod 72 connects motor 2
Switch.The generally setting two of brake plate 71, is separately positioned on the two sides of driven wheel 5, by two brake plates 71 to driven wheel 5
Movement, is in contact with 5 side of driven wheel, and then presss from both sides and stop driven wheel 5, makes 6 stop motion of ball screw, high brake pressure injection
Device.Lifting rod 72 connects the switch of motor 2 simultaneously, and lifting rod 72 is lifted for driving the folder of brake plate 71 to stop driven wheel 5 when pulling
When bar 72 starts braking, the power switch of motor 2 is simultaneously closed off, motor 2 is made to stop operating.The brake apparatus of mechanical structure is compared
The structure of emergency stop is controlled in electric signal, the advantage is that: it is more reliable and more stable, in signal transmission errors, can brake in time
High pressure injector stop motion, avoiding the error running of high pressure injector is that patient brings damage；Simultaneously as brake apparatus is set
It sets at driven wheel, the rotator inertia of each driving member in braking process can be effectively reduced in braking, further increases braking
Effect.
Embodiment 1
As shown in Figure 1, brake apparatus 7 includes brake plate 71 and lifting rod 72；Brake plate 71 is V shaped slab, middle part and machine
First 1 is hinged；Two brake plates 71 are symmetricly set on the two sides of driven wheel 5；Lifting rod 72 while hinged two brake plates 71；Lifting
Bar 72 can be along its axially reciprocating.When lifting rod 72 moves upwards, due to brake plate 71 and lifting rod 72, brake plate 71 with
Hinged connection relationship between head 1, two brake plates 71 are moved to 5 position of driven wheel, folder stop driven wheel 5, reach braking from
The purpose of driving wheel 5.1 brake apparatus 7 of the present embodiment, it is simple and reasonable, driven wheel 5 can be effectively braked, and then reach braking
The purpose of high pressure injector.
Embodiment 2
As shown in Figure 3, Figure 4, brake apparatus 7 includes brake plate 71, pulley 73, pulley groove 74 and lifting rod 72；Brake plate
71 is in a rectangular trapezoid, and middle part is hinged with head 1；Two brake plates 71 are symmetricly set on 5 two sides of driven wheel；Pulley groove 74
Setting two, is separately positioned on two sides of the brake plate 71 with bevel edge；Pulley 73 is arranged two, respectively along two pulley grooves 74
It moves back and forth for squeezing brake plate 71；Lifting rod 72 and pulley groove 74 are arranged in the same direction, while connecting two pulleys 73, and drive
Pulley 73 moves back and forth.Lifting rod 72 is pulled up, band movable pulley 73 is moved upwards along pulley groove 74, due to brake plate 71 and machine
First 1 is hinged, and its is in a rectangular trapezoid, and pulley 73 squeezes brake plate 71 with bevel edge side.Keep brake plate 71 hinged with head 1 around it
Position rotation, and then two brake plates 71 is made to squeeze 5 side of driven wheel, it realizes braking driven wheel 5, stops high pressure injector movement
Purpose.The brake apparatus 7 of the present embodiment realizes braking by squeezing brake plate 71, is applied to the effect of 5 side of driven wheel
Power is bigger, keeps braking effect better, but its structure is relative complex, and installation and debugging are not easy relatively.
Brake plate 71 is equipped with the friction portion that extending direction is parallel to 71 bevel edge of brake plate close to 5 side of driven wheel.Work as pulley
73 move upwards when squeezing brake plate 71,71 rotational angles of brake plate and brake plate 71 bevel edge it is equal at inclination angle, setting is prolonged
Stretch the friction portion for being oriented parallel to 71 bevel edge of brake plate, make brake plate 71 when contacting with driven wheel 5, friction portion completely attach to from
Driving wheel 5 increases the contact area of brake plate 71 Yu driven wheel 5, and brake plate 71 is made to obtain better braking effect.
For above two different embodiment, the brake apparatus 7 of effective brake driven wheel 5 can be obtained, it can basis
The suitable embodiment of concrete condition rotation.
As shown in Fig. 2, lifting rod 72 is equipped with holding section 721；Head 1 is equipped in position corresponding with holding section 721 and mutually fits
The engaging slot 11 matched.When lifting rod 72 moves upwards, and the folder of brake plate 71 is made to stop driven wheel 5, holding section 721 and engaging slot 11 block
It closes, the position of lifting rod 72 is fixed at this time, and then brake plate 71 is made to keep the braking action to driven wheel 5.
A kind of high pressure injector equipped with mechanical brake device described in the utility model, it is real by the cooperation of mechanical mechanism
The purpose of existing brake pushrod, braking is reliable and stable, when the transmission of the signal of high pressure injector or circuit error, can pass through the system
The stable stopping pushrod movement of dynamic device 7, anti-throw-out lever continue to move in error conditions, avoid high pressure injector that mistake occurs
When to patient bring damage；Since brake apparatus 7 is arranged at driven wheel 5, can be effectively reduced in braking process in braking
The rotator inertia of each driving member, further increases braking effect；Simultaneously as using the brake apparatus 7 of mechanical structure, making
It has been simply turned off 2 power supply of motor during dynamic, has made high pressure injector other systems still in open state, it will not be to high pressure injector
Data in other systems have an impact, and facilitate and subsequent are studied according to data error reason.
For those skilled in the art, it can make other each according to the above description of the technical scheme and ideas
The corresponding change of kind and deformation, and all these changes and deformation all should belong to the guarantor of the utility model claims
Within the scope of shield.
Claims (5)
1. a kind of high pressure injector equipped with mechanical brake device, comprising: head (1)；Motor (2), master are equipped in the head
Driving wheel (3), synchronous belt (4), driven wheel (5) and ball screw (6)；The motor (2) and driving wheel (3) are coaxially disposed, described
Driving wheel (3) drives driven wheel (5) rotation by synchronous belt (4)；The driven wheel (5) drives ball screw (6) rotation；It is described
Ball screw (6) drives push rod to move back and forth；It is characterized in that, being additionally provided with the brake apparatus (7) for braking driven wheel (5)；
The brake apparatus (7) includes brake plate (71) and lifting rod (72)；The brake plate (71) stops driven wheel (5) for pressing from both sides；Institute
It states lifting rod (72) and drives brake plate (71) movement；The switch of lifting rod (72) connection motor (2).
2. a kind of high pressure injector equipped with mechanical brake device according to claim 1, which is characterized in that the brake plate
It (71) is V shaped slab, middle part is hinged with head (1)；Two brake plates (71) are symmetricly set on the two sides of driven wheel (5)；
The lifting rod (72) while hinged two brake plates (71)；The lifting rod (72) can be along its axially reciprocating.
3. a kind of high pressure injector equipped with mechanical brake device according to claim 1, which is characterized in that the braking dress
Setting (7) includes pulley (73), pulley groove (74)；The brake plate (71) is in a rectangular trapezoid, and middle part is hinged with head (1)；Two
A brake plate (71) is symmetricly set on driven wheel (5) two sides；The pulley groove (74) is arranged two, is separately positioned on two
A side of the brake plate (71) with bevel edge；The pulley (73) is arranged two, moves back and forth use along two pulley grooves (74) respectively
In extruding brake plate (71)；The lifting rod (72) and pulley groove (74) are arranged in the same direction, while connecting two pulleys (73), and band
Movable pulley (73) moves back and forth.
4. a kind of high pressure injector equipped with mechanical brake device according to claim 3, which is characterized in that the brake plate
(71) the friction portion that extending direction is parallel to brake plate (71) bevel edge is equipped with close to driven wheel (5) side.
5. a kind of high pressure injector equipped with mechanical brake device according to claim 1, which is characterized in that the lifting rod
(72) holding section (721) are equipped with；The head (1) is equipped with compatible engaging slot in position corresponding with holding section (721)
(11)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821401553.8U CN209301888U (en) | 2018-08-29 | 2018-08-29 | A kind of high pressure injector equipped with mechanical brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821401553.8U CN209301888U (en) | 2018-08-29 | 2018-08-29 | A kind of high pressure injector equipped with mechanical brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209301888U true CN209301888U (en) | 2019-08-27 |
Family
ID=67668769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821401553.8U Active CN209301888U (en) | 2018-08-29 | 2018-08-29 | A kind of high pressure injector equipped with mechanical brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209301888U (en) |
-
2018
- 2018-08-29 CN CN201821401553.8U patent/CN209301888U/en active Active
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