CN215843626U - Centrifuge cover lock structure and centrifugal blood treatment facility - Google Patents
Centrifuge cover lock structure and centrifugal blood treatment facility Download PDFInfo
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- CN215843626U CN215843626U CN202122329048.5U CN202122329048U CN215843626U CN 215843626 U CN215843626 U CN 215843626U CN 202122329048 U CN202122329048 U CN 202122329048U CN 215843626 U CN215843626 U CN 215843626U
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Abstract
The utility model discloses a centrifuge cover locking structure and centrifugal blood treatment equipment, which comprise clamping jaws, clamping jaw bases, a support, pin shafts, a control shaft, a fixing plate and an eccentric wrench, wherein the clamping jaws are arranged on the support; the two clamping jaws are symmetrically arranged at the tops of the clamping jaws and are rotationally connected with the clamping jaw base, the support is fixedly connected to the bottom of the clamping jaw base, the fixed plate is arranged in the support, the two pin shafts are symmetrically arranged at two sides of the control shaft and are connected with the fixed plate, the upper ends of the pin shafts penetrate through the clamping jaw base and are inserted into the positioning grooves in the bottom surfaces of the clamping jaws, the control shaft is vertically arranged on the clamping jaw base and can slide up and down, the lower end of the control shaft is connected with the fixed plate, and the eccentric wrench is in shaft connection with the upper end of the control shaft; the structure ensures that the centrifuge can not be started when the centrifuge cover is not completely locked; the device has reasonable structure and convenient processing; the eccentric spanner and the control shaft adopt dead point design, the clamping jaw is locked in advance through the pin shaft, and the control shaft is locked through the eccentric spanner, so that the use safety is improved, and unexpected operation is prevented.
Description
Technical Field
The utility model relates to the field of medical instruments, in particular to a cover lock structure of a centrifugal blood component separator.
Background
The separation of blood composition is generally carried out in centrifuge, installs centrifugal cup in centrifuge, and centrifuge area centrifugal cup is rotatory with high speed, and blood composition separates, for preventing that high-speed rotatory centrifuge rotor and centrifugal cup from being touched by personnel and taking place the incident at the operation in-process, the design has centrifuge lid lock on the centrifugation storehouse, and the cover can only use after must locking. At operating equipment's in-process, need often open and shut and locking centrifuge cover to the installation with dismantle the centrifuge cup consumptive material, whether the cover locks in place in addition, also can influence the quality of adopting thick liquid in-process play thick liquid.
At present, the design method of the centrifuge cover locking structure in the centrifugal blood processing equipment industry generally comprises the following steps: the centrifugal machine cover lock assembly is locked by a screwing method, on one hand, when the machine cover is opened and closed, the nut needs to be screwed or unscrewed for multiple times, the situation that the machine cover is not completely locked and noise is generated easily occurs, and on the other hand, the safety accident is caused because the fastener is loosened easily due to vibration in the using process. Also, the clamping jaw of a manufacturer is fixed near the centrifugal cup through the lock catch and is in a suspended state, the locking effect is poor, and in the using process, the lock catch can be loosened.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a cover locking structure of a centrifugal machine, which is used for monitoring whether a cover is locked in place or not, and ensuring that the centrifugal machine cannot be started and is convenient to operate under the condition that the cover is not completely locked.
The utility model is realized by the following technical scheme:
a cover lock structure of a centrifugal machine comprises a claw base, a lock body and a lock body, wherein an accommodating cavity is formed in the claw base and used for accommodating a centrifugal cup;
the clamping jaw is connected with the clamping jaw base, is positioned at the top of the clamping jaw base and is used for fixing the centrifugal cup;
the pin shaft is connected with the jaw base and can axially move to be clamped with or separated from the jaw;
the control shaft is arranged on the jaw base and connected with the pin shaft, and the control shaft is used for driving the pin shaft to move along the axial direction when moving axially;
the lifting mechanism is connected with the control shaft and positioned at the top of the clamping jaw, and can enable the control shaft to move along the axial direction of the control shaft;
when the lifting mechanism makes the control shaft move to the first direction, the pin shaft is locked to the claw in a clamped mode, when the lifting mechanism makes the control shaft move to the first preset position in the second direction, the lock of the pin shaft is released to the state, and when the control shaft moves to the second preset position in the second direction, the pin shaft is separated from the claw.
Preferably, the pin is connected with an elastic device, and the elastic device is used for applying upward thrust to the pin.
Preferably, the pin shaft is connected with the control shaft through a connecting piece and is positioned at the bottom of the jaw base, and an elastic device is arranged at the bottom of the connecting piece and is compressed to apply elastic force to the connecting piece when the control shaft moves towards the first direction.
Preferably, the control shaft is provided with a positioning shaft shoulder and is positioned at the top of the connecting piece;
when the control shaft moves towards the second direction, the positioning shaft shoulder is abutted against the top surface of the connecting piece, so that the connecting piece and the control shaft move synchronously.
Preferably, the lifting mechanism is an eccentric wrench, when the eccentric wrench is located at a first position, the control shaft is located at a first preset position, and when the eccentric wrench rotates to a second position, the lifting mechanism enables the control shaft to move towards a first direction.
Preferably, the control shaft is sleeved with a shaft sleeve, the shaft sleeve is fixedly sleeved on the jaw base, and the eccentric wrench rotates along the upper end face of the shaft sleeve.
Preferably, the top surfaces of the clamping jaws are provided with equal-height blocks, the upper end of the shaft sleeve is provided with a supporting plate, and when the two clamping jaws are closed, the equal-height blocks are in contact with the bottom surface of the supporting plate.
Preferably, a pre-locking switch is arranged between the jaw and the jaw base, and when the jaw is closed, the pre-locking switch sends a pre-locking closing signal.
Preferably, the claw base is provided with a locking switch, and when the control shaft moves upwards to a preset position, the locking switch sends a locking signal.
A centrifugal blood processing apparatus comprising the centrifuge lid lock structure.
Compared with the prior art, the utility model has the following beneficial technical effects:
according to the cover lock structure of the centrifugal machine, the pin shaft is matched with the positioning groove of the clamping jaw to realize pre-locking of the clamping jaw, the control shaft is moved upwards through the eccentric wrench to apply upward thrust to the fixing plate, locking is realized through the eccentric wrench, the problem that the existing lock catch can be loosened is solved through pre-locking and final locking, meanwhile, the pin shaft is clamped with the positioning groove, the clamping jaw is more convenient to close and open, and the cover lock structure of the centrifugal machine is reasonable in structure and convenient to process; the eccentric spanner and the control shaft adopt dead point design, and the centrifuge needs two-step unlocking action in the unlocking process, so that the safety is improved, and unexpected operation is prevented.
Furthermore, be provided with the prelocking limit switch in the bottom of jack catch to and set up locking limit switch on the support, detect jack catch closed condition through two limit switch, and the position of control shaft, guaranteed that do not have under the complete locking state at centrifuge cover, centrifuge can not start, the security of improvement use.
Drawings
FIG. 1 is a top view of the centrifuge cover lock construction of the present invention;
FIG. 2 is a partial cross-sectional view B-B of FIG. 1;
fig. 3 is a sectional view a-a in fig. 1.
In the figure: 1. a control shaft; 2. an eccentric wrench; 3. a shaft sleeve; 4. a spring pin; 5. a claw; 6. a jaw base; 7. a fixing plate; 8. a locking spring; 9. a support; 10. a pin shaft; 11. positioning a groove; 12. pre-locking the spring; 13. equal-height blocks; 14. pre-locking a signal block; 15. a lock-up signal block; 16. positioning the shaft shoulder; 17. a handle.
Detailed Description
The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention.
Referring to fig. 1-3, a cover lock structure of a centrifuge comprises a jaw 5, a jaw base 6, a bracket 9, a pin shaft 10, a control shaft 1, a fixing plate 7 and an eccentric wrench 2.
Two semicircular jack catchs symmetries set up the top at jack catch base 6, two jack catchs rotate with jack catch base 6 respectively with one end and be connected, support 9 rigid coupling is in the bottom of jack catch base 6, and be located the concatenation department when two jack catchs close, fixed plate 7 sets up in support 9, two round pin shaft symmetries set up in the both sides of control shaft 1 and are connected with the fixed plate, the fixing base is connected round pin axle and control shaft as the connecting piece, the upper end of round pin axle is passed jack catch base 6 and is arranged in inserting the constant head tank 11 of jack catch bottom surface, control shaft 1 sets up perpendicularly on jack catch base 6, and be located the concatenation department of two jack catchs and can slide from top to bottom, the lower extreme and the fixed plate of control shaft 1 are connected, eccentric spanner 2 and the epaxial coupling of control shaft.
Adopt eccentric spanner as hoist mechanism, when eccentric spanner rotates to first direction (clockwise) and is used for exerting ascending pulling force to the control shaft, when eccentric spanner rotates to second direction (anticlockwise), control shaft 1 can remove downwards and is used for making round pin axle and constant head tank separation.
Be provided with pre-lock spring 12 between the bottom surface of above-mentioned fixed plate 7 and the support, when the control shaft moves down, make the fixed plate move down, and then drive two round pin axle synchronous motion, the tip of round pin axle separates with the constant head tank of jack catch, makes the jack catch unblock, and then can make two jack catches open.
The center of the fixed plate 7 is provided with a through hole, the lower end of the control shaft is positioned in the through hole, the middle part of the control shaft is provided with a positioning shaft shoulder 16, when the control shaft moves downwards, the positioning shaft shoulder is abutted to the top surface of the fixed plate (a first preset position), the control shaft continues to move downwards, the fixed plate moves downwards under the action of pressure, the fixed plate drives the pin shaft to move synchronously, the upper end of the pin shaft is separated from the positioning groove on the bottom surface of the clamping jaw, and meanwhile, the pre-locking spring 12 is compressed to complete the unlocking of the clamping jaw.
Elastic device is equipped with to the lower pot head of control shaft, including locking spring 8 and stop nut, stop nut is located the lower extreme of control shaft, locking spring 8 is located between fixed plate bottom surface and the stop nut, when two jack catchs are in the closure state, when rotating eccentric spanner clockwise, upwards carry and draw the control shaft, stop nut shifts up and makes the locking spring compression, exert ascending thrust to the fixed plate, the distance on eccentric spanner's pivot center and jack catch surface reaches the biggest, realize the locking location to the fixed plate, avoid the maloperation to lead to the jack catch to open.
Referring to fig. 3 again, the top of the control shaft is provided with a horizontal pressing plate, the control shaft moves downwards by applying pressure to the pressing plate, and then the fixing plate is driven to move, the control shaft is sleeved with a shaft sleeve 3, the shaft sleeve is fixedly sleeved on a jaw base 6, the upper end of the shaft sleeve 3 is provided with a horizontal supporting plate, the supporting plate is located at the top of a jaw and is located at the bottom of an eccentric wrench, the side wall of the jaw is provided with a semicircular groove matched with the shaft sleeve, when the two jaws are closed, the shaft sleeve is located between the two jaws and is located in a circular hole formed by the two semicircular grooves, the eccentric wrench contacts with the top surface of the shaft sleeve when rotating, when the eccentric wrench rotates clockwise to a horizontal state, the pulling force on the control shaft reaches the maximum, and meanwhile, the eccentric wrench is in a self-locking state, and the jaw is in a locking state.
The top surface of each clamping jaw is provided with an equal-height block 13, when the two clamping jaws are closed, the equal-height blocks are positioned on the bottom surface of the supporting plate at the upper end of the shaft sleeve, when the eccentric wrench applies pulling force to the fixing plate 7, the pin shaft is positioned in the positioning groove of the clamping jaw and applies upward pushing force to the clamping jaw, and the equal-height blocks 13 at the tops of the two clamping jaws are in contact with the bottom surface of the supporting plate, so that the two clamping jaws keep the same height.
The upper end of the pin shaft 10 is conical, the top surface of the pin shaft is a cambered surface, the positioning groove on the clamping jaw is a conical hole, when the clamping jaw is closed, the side wall of the clamping jaw is in contact with the conical surface at the upper end of the pin shaft, so that the pin shaft moves downwards to be aligned with the positioning pin of the clamping jaw, and the upper end of the pin shaft enters the positioning groove under the elastic force of the pre-locking spring.
Horizontal spring pins 4 are embedded in the side walls, opposite to the two clamping jaws, and after the pin shaft is separated from the positioning grooves of the clamping jaws, the two clamping jaws are automatically opened under the elastic force of the spring pins 4.
Two pre-locking limit switches are embedded in the bottom of the jaw base, the two pre-locking limit switches are symmetrically arranged on two sides of the control shaft, pre-locking signal blocks 14 are arranged on the bottom surfaces of the two jaws, the pre-locking signal blocks 14 trigger the pre-locking limit switches when the jaws are closed, the pre-locking limit switches send closing signals, and the pre-locking limit switches are connected with a control end of the centrifuge.
The support 9 is provided with a locking limit switch, the lower end of the control shaft is provided with a locking signal block 15, the locking signal block is provided with a magnet, after the control shaft moves upwards to apply tension to the fixing plate, the locking signal block triggers the locking limit switch through magnetic force, the locking limit switch sends a locking signal, and the locking limit switch is connected with the control end of the centrifuge.
The top of two jack catchs is provided with vertically handle 17, and the closed jack catch makes two jack catchs relative rotation through two handles, and the simple operation is and laborsaving more.
The working principle of the centrifuge cover lock structure provided by the utility model is explained in detail below.
Closing process
Firstly, the two claws rotate relatively through the handle 17, the side walls of the claws are contacted with the conical surface at the upper end of the pin shaft, the pin shaft moves downwards, the pre-locking spring and the locking spring are simultaneously compressed, when the pin shaft is aligned with the positioning groove of the claws, the upper end of the pin shaft enters the positioning groove under the elasticity of the pre-locking spring, and the pre-locking function of the claws is realized through the pin shaft.
Then, clockwise rotation eccentric spanner, eccentric spanner exert pulling force to the control shaft when rotating, and limit nut exerts pressure to the locking spring from bottom to top, makes the locking spring compress, and then exerts ascending thrust to the fixed plate, guarantees that round pin axle and constant head tank keep stable locking state, realizes the auto-lock when eccentric spanner rotates to the level state, accomplishes the final locking of jack catch.
Opening process
Firstly, the eccentric spanner is rotated anticlockwise to be loosened, the control shaft moves downwards in the rotating process of the eccentric spanner, the locking spring extends, and the positioning shaft shoulder on the control shaft is positioned at the upper part of the fixing plate.
And then, pressing a pressing plate at the top of the control shaft to enable the control shaft to move downwards, wherein a positioning shaft shoulder is contacted with the top surface of a fixing plate and drives the fixing plate to move downwards in the downward moving process of the control shaft, the fixing plate drives the pin shaft to move downwards, the pre-locking spring and the locking spring are simultaneously compressed, after the pin shaft is separated from the positioning grooves of the jaws, the two jaws rotate back to back under the elastic force of the spring pins to complete the opening of the jaws, and finally the pin shaft is reset under the elastic force of the spring.
The cover locking structure of the centrifugal machine provided by the utility model ensures that the centrifugal machine cannot be started when the cover of the centrifugal machine is not completely locked; the device has reasonable structure and convenient processing; the eccentric spanner and the control shaft adopt dead point design, the clamping jaw is locked in advance through the pin shaft, the control shaft is locked through the eccentric spanner, the eccentric spanner cannot be opened automatically, the centrifugal machine needs two-step unlocking action in the unlocking process, the safety is improved, and unexpected operation is prevented.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. A cover lock structure of a centrifuge is characterized by comprising,
the clamping jaw base is provided with an accommodating cavity for accommodating the centrifugal cup;
the clamping jaw is connected with the clamping jaw base, is positioned at the top of the clamping jaw base and is used for fixing the centrifugal cup;
the pin shaft is connected with the jaw base and can axially move to be clamped with or separated from the jaw;
the control shaft is arranged on the jaw base and connected with the pin shaft, and the control shaft is used for driving the pin shaft to move along the axial direction when moving axially;
the lifting mechanism is connected with the control shaft and positioned at the top of the clamping jaw, and can enable the control shaft to move along the axial direction of the control shaft;
when the lifting mechanism makes the control shaft move to the first direction, the pin shaft is locked to the claw in a clamped mode, when the lifting mechanism makes the control shaft move to the first preset position in the second direction, the lock of the pin shaft is released to the state, and when the control shaft moves to the second preset position in the second direction, the pin shaft is separated from the claw.
2. The centrifuge lid lock structure of claim 1, wherein said pin is connected to resilient means for applying an upward pushing force to the pin.
3. The centrifuge lid lock structure of claim 1, wherein the pin is connected to the control shaft through a connecting member and is located at the bottom of the jaw base, and the bottom of the connecting member is provided with an elastic means, so that the elastic means is compressed to apply an elastic force to the connecting member when the control shaft moves in the first direction.
4. The centrifuge cover lock structure of claim 3, wherein the control shaft is provided with a positioning shoulder and is positioned at the top of the connecting piece;
when the control shaft moves towards the second direction, the positioning shaft shoulder is abutted against the top surface of the connecting piece, so that the connecting piece and the control shaft move synchronously.
5. The centrifuge lid lock arrangement of claim 1, wherein the lifting mechanism is an eccentric wrench, wherein the control shaft is in a first predetermined position when the eccentric wrench is in a first position, and wherein the lifting mechanism moves the control shaft in a first direction when the eccentric wrench is rotated to a second position.
6. The centrifuge lid lock structure of claim 5, wherein said control shaft is sleeved with a bushing, said bushing is fixedly sleeved on a jaw base, and said eccentric wrench rotates along an upper end face of said bushing.
7. The centrifuge lid lock structure of claim 6 wherein the top surfaces of the jaws are provided with an equal height block and the upper end of the sleeve is provided with a support plate, the equal height block contacting the bottom surface of the support plate when the two jaws are closed.
8. The centrifuge lid lock structure of claim 1, wherein a pre-lock switch is disposed between the jaw and the jaw base, and when the jaw is closed, the pre-lock switch sends a pre-lock close signal.
9. The centrifuge cover lock structure according to claim 1, wherein the claw base is provided with a lock switch, and when the control shaft is moved upward to a predetermined position, the lock switch sends a lock signal.
10. A centrifugal blood processing apparatus comprising the centrifuge cover lock structure of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122329048.5U CN215843626U (en) | 2021-09-24 | 2021-09-24 | Centrifuge cover lock structure and centrifugal blood treatment facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122329048.5U CN215843626U (en) | 2021-09-24 | 2021-09-24 | Centrifuge cover lock structure and centrifugal blood treatment facility |
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| Publication Number | Publication Date |
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| CN215843626U true CN215843626U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122329048.5U Active CN215843626U (en) | 2021-09-24 | 2021-09-24 | Centrifuge cover lock structure and centrifugal blood treatment facility |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115532451A (en) * | 2022-12-05 | 2022-12-30 | 深圳市瑞沃德生命科技有限公司 | Rotor and centrifugal machine with same |
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2021
- 2021-09-24 CN CN202122329048.5U patent/CN215843626U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115532451A (en) * | 2022-12-05 | 2022-12-30 | 深圳市瑞沃德生命科技有限公司 | Rotor and centrifugal machine with same |
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