CN111202540A - Lifting protection device for CT scanning bed and use method thereof - Google Patents
Lifting protection device for CT scanning bed and use method thereof Download PDFInfo
- Publication number
- CN111202540A CN111202540A CN202010141922.XA CN202010141922A CN111202540A CN 111202540 A CN111202540 A CN 111202540A CN 202010141922 A CN202010141922 A CN 202010141922A CN 111202540 A CN111202540 A CN 111202540A
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- Prior art keywords
- push
- locking
- scanning bed
- pull electromagnet
- protection device
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/10—Application or adaptation of safety means
- A61B6/102—Protection against mechanical damage, e.g. anti-collision devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/032—Transmission computed tomography [CT]
- A61B6/035—Mechanical aspects of CT
Abstract
The invention relates to the technical field of medical imaging equipment, in particular to a CT scanning bed lifting protection device and a using method thereof. The invention discloses a lifting protection device of a CT scanning bed, which comprises a base, wherein a lifting screw rod is arranged on the base, a locking wheel is arranged at the tail end of the lifting screw rod, a push-pull electromagnet is arranged on the base and comprises a push-pull electromagnet telescopic shaft, a locking rod is arranged at one end of the push-pull electromagnet telescopic shaft, the other end of the locking rod is fixed on the base through a rotating shaft, the locking rod comprises a stop block, the locking wheel comprises a latch, and the stop block and the latch are arranged in a matched mode.
Description
Technical Field
The invention relates to the technical field of medical imaging equipment, in particular to a CT scanning bed lifting protection device and a using method thereof.
Background
Ct (computed tomography), namely, computed tomography, which uses precisely collimated X-ray beams, gamma rays, ultrasonic waves, etc. to scan sections of a human body one after another around a certain part of the human body together with a detector with extremely high sensitivity, has the characteristics of fast scanning time, clear images, etc., and can be used for the examination of various diseases; the following can be classified according to the radiation used: x-ray CT (X-CT), and gamma-ray CT (gamma-CT).
The existing CT scanning bed can realize the ascending or descending of the bed through a lead screw, but the bed body suddenly falls when the power is off, so the bed is unsafe; when changing the lift lead screw motor simultaneously, there is the risk that the bed also can fall.
Among the prior art, when changing the motor, for avoiding the bed body whereabouts incident to appear, generally realize through following scheme:
1, adding an extra brake, but having the following problems:
a, when the motor is replaced due to power failure due to lifting failure, the bed height cannot be adjusted because the bed height is locked by the additional band-type brake, and the bed height is not favorable for maintenance operation in case of failure, even the bed cannot be replaced due to insufficient operation space.
b, high cost.
2, an additional locking tool is added, but the following problems exist:
a, the locking tool also has the problem that the height of the bed is not adjustable, the position is not beneficial to maintenance operation in case of failure, and the locking tool cannot be replaced due to insufficient operation space.
And b, before the extra locking tool is replaced, the extra locking tool is easy to forget to install and lock, and after the extra locking tool is replaced, the extra locking tool is easy to forget to release, so that potential safety hazards are brought.
3 is locked by a self-locking speed reducer, but has the following problems:
a, the self-locking speed reducer has low efficiency and needs a larger motor and power consumption.
b, the reducer has high noise, large reduction ratio and low lifting speed.
And c, high cost.
Disclosure of Invention
The invention hopes to provide a CT scanning bed lifting protection device and a use method thereof, and the specific scheme is as follows:
the utility model provides a CT scanning bed lift protection device, includes the base, be equipped with the lift lead screw on the base, lift lead screw end is equipped with the locking wheel, be equipped with plug-type electro-magnet on the base, plug-type electro-magnet includes plug-type electro-magnet telescopic shaft, plug-type electro-magnet telescopic shaft one end is equipped with the locking lever, the other end of locking lever passes through the axis of rotation to be fixed on the base, the locking lever includes the dog, the locking wheel includes the latch, dog and latch cooperation set up.
The tail end of the lifting screw rod is provided with a connecting sleeve, and a ratchet wrench is arranged on the connecting sleeve. After the stop dog on the locking lever is occluded and locked with the latch of the locking wheel, the height of the CT scanning bed is still too low, and the stop dog on the locking lever and the latch of the locking wheel can be loosened by rotating the ratchet wrench, so that the lifting screw rod is driven to enable the height of the CT scanning bed to be increased.
The stop block is a triangular stop block. The triangular stop block can be better matched with the shape of the latch to play a role in locking.
One end of the telescopic shaft of the push-pull electromagnet is connected with the locking rod through a pin shaft. Because the locking rod needs to move along with the push-pull type electromagnet telescopic shaft, the push-pull type electromagnet telescopic shaft and the locking rod are more flexibly connected by the arrangement.
The push-pull electromagnet comprises a push-pull electromagnet shell, and a reset spring is arranged between the push-pull electromagnet shell and the push-pull electromagnet telescopic shaft. The reset spring can more quickly reset the telescopic shaft of the push-pull electromagnet.
The base is provided with a fixed plate, and the fixed plate is provided with a push-pull electromagnet. The push-pull type electromagnet can be ensured to be installed more stably.
A use method of a CT scanning bed lifting protection device comprises the following steps when power is off: when the push-pull electromagnet is powered off, the telescopic shaft of the push-pull electromagnet extends out to drive the locking rod, and the stop block on the locking rod is meshed and locked with the latch of the locking wheel.
A use method of a CT scanning bed lifting protection device comprises the following steps when a motor of a lifting screw rod is replaced: and after the power supply is cut off, the push-pull electromagnet loses power, the telescopic shaft of the push-pull electromagnet extends out to drive the locking rod, and the power supply can be safely replaced after the stop dog on the locking rod is meshed and locked with the latch of the locking wheel.
After the stop dog on the locking lever is occluded and locked with the latch of the locking wheel, the height of the CT scanning bed is still too low, and the stop dog on the locking lever and the latch of the locking wheel can be loosened by rotating the ratchet wrench, so that the lifting screw rod is driven to enable the height of the CT scanning bed to be increased; when the CT scanning bed rises to a proper position, the ratchet wrench is loosened, the locking rod resets under the action of gravity and a reset spring of the push type electromagnet, and therefore the stop block on the locking rod is meshed with the latch of the locking wheel again for locking.
The invention has the following advantages:
1. the stop block and the latch are matched, so that a locking function is realized, when the whole CT bed loses power (namely, the lifting screw rod and the push-pull type electromagnet lose power), the bed cannot fall under the action of self gravity, the safety is ensured, and meanwhile, the lifting screw rod motor of the CT bed can be conveniently replaced;
2. when the lifting screw motor is replaced on the CT bed, the height of the CT bed can be adjusted while the CT bed is locked.
Drawings
Fig. 1 is a schematic structural view of a lifting protection device of a CT scanning bed in embodiment 1;
fig. 2 is a schematic structural view of a lifting protection device of a CT scanning bed in embodiment 2;
wherein the reference numbers: 1. a base; 2. a lifting screw rod; 3. a locking wheel; 4. a locking lever; 41. a stopper; 5. a connecting sleeve; 6. a ratchet wrench; 7. a push-pull electromagnet; 71. a push-pull type electromagnet telescopic shaft; 72. a return spring; 8. a fixing plate; 9. a pin shaft; 10. and rotating the shaft.
Detailed Description
Example 1
The following further description is given in conjunction with example 1
The utility model provides a CT scanning bed lift protection device, including base 1, be equipped with lift lead screw 2 on the base 1, 2 ends of lift lead screw are equipped with locking wheel 3, be equipped with plug-type electro-magnet 7 on the base 1, plug-type electro-magnet 7 includes plug-type electro-magnet telescopic shaft 71, plug-type electro-magnet telescopic shaft 71 one end is equipped with locking lever 4, the other end of locking lever 4 passes through axis of rotation 10 (can adopt for example round pin axle in the concrete use) to be fixed on base 1, locking lever 4 includes dog 41, locking wheel 3 includes the latch, dog 41 and latch cooperation set up. The specific stop block 41 is a triangular stop block; the triangular stop block can be better matched with the shape of the latch to play a role in locking. One end of the push-pull type electromagnet telescopic shaft 71 is connected with the locking rod 4 through a pin shaft 9; this arrangement makes the connection of the push-pull electromagnet telescopic shaft 71 to the locking rod 4 more flexible, since the locking rod 4 needs to move with the push-pull electromagnet telescopic shaft 71. The push-pull electromagnet 7 comprises a push-pull electromagnet shell, and a return spring 72 is arranged between the push-pull electromagnet shell and the push-pull electromagnet telescopic shaft 71; the reset spring 72 can quickly reset the push-pull type electromagnet telescopic shaft 71. A fixed plate 8 is arranged on the base 1, and a push-pull electromagnet 7 is arranged on the fixed plate 8; the push-pull type electromagnet 7 can be ensured to be installed more stably.
A use method of a CT scanning bed lifting protection device comprises the following steps when power is off: when the push-pull electromagnet 7 is powered off, the telescopic shaft 71 of the push-pull electromagnet extends out to drive the locking rod 4, and the stop block 41 on the locking rod 4 is meshed and locked with the latch of the locking wheel 3.
Example 2
This is further illustrated below in connection with FIGS. 1-2:
the other structures are the same as those of the embodiment 1, except that the tail end of the lifting screw rod 2 is provided with a connecting sleeve 5, and a ratchet wrench 6 is arranged on the connecting sleeve 5. After the stop block 41 on the locking rod 4 is engaged and locked with the latch of the locking wheel 3, the height of the CT scanning bed is still too low, and the stop block 41 on the locking rod 4 and the latch of the locking wheel 3 can be released by rotating the ratchet wrench 6, so that the lifting screw rod 2 is driven to raise the height of the CT scanning bed.
A use method of a CT scanning bed lifting protection device comprises the following steps when a motor of a lifting screw rod 2 is replaced: and when the power supply is cut off, the push-pull electromagnet 7 loses power, the telescopic shaft 71 of the push-pull electromagnet extends out to drive the locking rod 4, and the power supply can be safely replaced after the stop block 41 on the locking rod 4 is meshed and locked with the latch of the locking wheel 3. After the stop block 41 on the locking rod 4 is occluded and locked with the latch of the locking wheel 3, if the height of the CT scanning bed is still too low, the stop block 41 on the locking rod 4 and the latch of the locking wheel 3 can be loosened by rotating the ratchet wrench 6, so that the lifting screw rod 2 is driven to enable the height of the CT scanning bed to be increased; when the CT scanning bed rises to a proper position, the ratchet wrench 6 is loosened, the locking rod 4 is reset under the action of gravity and the reset spring 72 of the push type electromagnet 7, and therefore the stop 41 on the locking rod 4 is meshed and locked with the latch of the locking wheel 3 again.
The above-mentioned embodiments are only used for explaining the inventive concept of the present invention, and do not limit the protection of the claims of the present invention, and any insubstantial modifications of the present invention using this concept shall fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a CT scanning bed lift protection device which characterized in that: the lifting screw rod is arranged on the base, a locking wheel is arranged at the tail end of the lifting screw rod, a push-pull electromagnet is arranged on the base and comprises a push-pull electromagnet telescopic shaft, a locking rod is arranged at one end of the push-pull electromagnet telescopic shaft, the other end of the locking rod is fixed on the base through a rotating shaft, the locking rod comprises a stop dog, the locking wheel comprises a latch, and the stop dog and the latch are matched to be arranged.
2. The lifting protection device for CT scanning bed as claimed in claim 1, wherein: the tail end of the lifting screw rod is provided with a connecting sleeve, and a ratchet wrench is arranged on the connecting sleeve.
3. The lifting protection device for CT scanning bed as claimed in claim 1, wherein: the stop block is a triangular stop block.
4. The lifting protection device for CT scanning bed as claimed in claim 1, wherein: one end of the telescopic shaft of the push-pull electromagnet is connected with the locking rod through a pin shaft.
5. The lifting protection device for CT scanning bed as claimed in claim 1, wherein: the push-pull electromagnet comprises a push-pull electromagnet shell, and a reset spring is arranged between the push-pull electromagnet shell and the push-pull electromagnet telescopic shaft.
6. The lifting protection device for CT scanning bed as claimed in claim 1, wherein: the base is provided with a fixed plate, and the fixed plate is provided with a push-pull electromagnet.
7. The method for using the lifting protection device of the CT scanning bed as claimed in claim 1, wherein the method comprises the following steps when the power is cut off: when the push-pull electromagnet is powered off, the telescopic shaft of the push-pull electromagnet extends out to drive the locking rod, and the stop block on the locking rod is meshed and locked with the latch of the locking wheel.
8. The method for using the lifting protection device of the CT scanning bed as claimed in claim 1, wherein when the motor of the lifting screw rod is replaced, the method comprises the following steps: and after the power supply is cut off, the push-pull electromagnet loses power, the telescopic shaft of the push-pull electromagnet extends out to drive the locking rod, and the power supply can be safely replaced after the stop dog on the locking rod is meshed and locked with the latch of the locking wheel.
9. The use method of the lifting protection device of the CT scanning bed as claimed in claim 7, wherein: after the stop dog on the locking lever is occluded and locked with the latch of the locking wheel, the height of the CT scanning bed is still too low, and the stop dog on the locking lever and the latch of the locking wheel can be loosened by rotating the ratchet wrench, so that the lifting screw rod is driven to enable the height of the CT scanning bed to be increased; when the CT scanning bed rises to a proper position, the ratchet wrench is loosened, the stop dog on the locking rod is meshed and locked with the latch of the locking wheel again under the action of gravity and the reset spring of the electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010141922.XA CN111202540B (en) | 2020-03-04 | 2020-03-04 | CT scanning bed lifting protection device and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010141922.XA CN111202540B (en) | 2020-03-04 | 2020-03-04 | CT scanning bed lifting protection device and use method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN111202540A true CN111202540A (en) | 2020-05-29 |
| CN111202540B CN111202540B (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010141922.XA Active CN111202540B (en) | 2020-03-04 | 2020-03-04 | CT scanning bed lifting protection device and use method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4316091A (en) * | 1979-11-15 | 1982-02-16 | Emi Limited | CT Scanner |
| US20060083354A1 (en) * | 2004-07-30 | 2006-04-20 | Tybinkowski Andrew P | Anatomical imaging system with centipede belt drive |
| CN203458383U (en) * | 2013-09-02 | 2014-03-05 | 周福宏 | Electric control lifting device for scanning bed |
| CN106725898A (en) * | 2016-12-14 | 2017-05-31 | 西安交通大学医学院第附属医院 | It is a kind of for CT guided percutaneous needle biopsies and the device of seeds implanted Template Location |
-
2020
- 2020-03-04 CN CN202010141922.XA patent/CN111202540B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4316091A (en) * | 1979-11-15 | 1982-02-16 | Emi Limited | CT Scanner |
| US20060083354A1 (en) * | 2004-07-30 | 2006-04-20 | Tybinkowski Andrew P | Anatomical imaging system with centipede belt drive |
| CN203458383U (en) * | 2013-09-02 | 2014-03-05 | 周福宏 | Electric control lifting device for scanning bed |
| CN106725898A (en) * | 2016-12-14 | 2017-05-31 | 西安交通大学医学院第附属医院 | It is a kind of for CT guided percutaneous needle biopsies and the device of seeds implanted Template Location |
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| Publication number | Publication date |
|---|---|
| CN111202540B (en) | 2023-05-23 |
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