CN216272882U - Lifting device and scanning bed using same - Google Patents
Lifting device and scanning bed using same Download PDFInfo
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- CN216272882U CN216272882U CN202122856493.7U CN202122856493U CN216272882U CN 216272882 U CN216272882 U CN 216272882U CN 202122856493 U CN202122856493 U CN 202122856493U CN 216272882 U CN216272882 U CN 216272882U
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Abstract
The utility model provides a lifting device and a scanning bed using the same, comprising: the base is provided with a first sliding block; the driving assembly is arranged at one end of the base and connected with the first sliding block so as to drive the first sliding block to horizontally move; the supporting frame is arranged at the other end of the base; the second sliding block is arranged between the first sliding block and the supporting frame, is connected with the supporting frame in a sliding mode, and can move up and down relative to the supporting frame; the bottom of the second sliding block is an inclined surface facing the first sliding block; when the driving assembly drives the first sliding block to move close to or away from the supporting frame, the first sliding block changes the stress direction of the second sliding block in sliding connection, so that the second sliding block moves up and down relative to the supporting frame. The device is simple in structure, safe and reliable, not only provides stable horizontal movement, but also provides good rigidity, so that the device is more stable and firm.
Description
Technical Field
The utility model relates to the technical field of medical treatment, in particular to a lifting device and a scanning bed using the same.
Background
The lifting device is widely applied to the fields of medical instruments, parking lots, factories, docks, warehouses and the like which need lifting and unloading or overhauling and maintenance, the existing lifting device adopts an upper and lower double-shear lifting mechanism, and the mechanism has the advantages of complex structure, poor stability and certain potential safety hazard.
For example, the existing medical imaging diagnostic apparatus, such as CT, MRI, PET, magnetic resonance, etc., in the field of medical devices, generally includes a subsystem bed for carrying a subject (patient), which is also called "scanning bed" or "diagnostic bed", and which has a lifting function for transporting the patient to a diagnosis or treatment area. The existing common use of the scanning bed is an elevating mechanism of upper and lower double scissors, through the transmission of a motor-driven screw nut, the motor-driven mechanism is arranged at the cross of the lower scissors, a screw rod is directly connected, the nut matched with the screw rod is arranged at the cross of the upper scissors, the upper scissors and the lower scissors are connected through a hinge, the motor-driven screw rod rotates, the distance of the cross point of the upper scissors and the lower scissors is changed, the opening and closing angle of the scissors can also be changed along with the change of the opening and closing angle of the scissors, and therefore the lifting of a sickbed is controlled. The scissors have certain potential safety hazards when opened and closed; the double scissors have more kinematic pairs, complex structure and poor stability.
Accordingly, the prior art is deficient and needs improvement.
SUMMERY OF THE UTILITY MODEL
In view of the above drawbacks of the prior art, the present invention provides a lifting device and a scanning bed using the same, especially for a subsystem hospital bed of a medical imaging apparatus, so as to solve the technical problems of potential safety hazard, complex structure, poor stability, etc. of the conventional lifting device.
To achieve the above object, the present invention provides a lifting device, comprising: the base is provided with a first sliding block; the driving assembly is arranged at one end of the base and connected with the first sliding block so as to drive the first sliding block to horizontally move; the supporting frame is arranged at the other end of the base; the second sliding block is arranged between the first sliding block and the supporting frame, is connected with the supporting frame in a sliding mode, and can move up and down relative to the supporting frame; the bottom of the second sliding block is an inclined surface facing the first sliding block; when the driving assembly drives the first sliding block to move close to or away from the supporting frame, the first sliding block changes the stress direction of the second sliding block in sliding connection, so that the second sliding block moves up and down relative to the supporting frame.
In an embodiment of the utility model, the top of the second sliding block is a horizontal plane for carrying external devices; the plane of the second sliding block in sliding connection with the supporting frame is a vertical plane.
In an embodiment of the utility model, the external device is a bed of a scanning bed.
In an embodiment of the present invention, the first sliding block is a rectangular block, and an edge on the top of the first sliding block, the edge being close to the inclined surface, is slidably connected to the inclined surface of the second sliding block.
In an embodiment of the present invention, a slope surface parallel to and slidably connected to the inclined surface of the second slider is disposed on the top of the first slider.
In an embodiment of the utility model, a first sliding assembly is disposed between the first sliding block and the second sliding block.
In an embodiment of the present invention, a second sliding assembly is disposed between the first sliding block and the base; and/or a third sliding assembly is arranged between the second sliding block and the supporting frame.
In an embodiment of the present invention, the first sliding assembly, the second sliding assembly, and the third sliding assembly each include: a pulley and a chute; or, the first sliding assembly, the second sliding assembly and the third sliding assembly all comprise: a guide rail slide block and a guide rail.
In an embodiment of the present invention, the driving assembly includes a motor and a lead screw; one end of the screw rod is connected with the motor, and the other end of the screw rod is fixedly connected with the support frame; the screw rod penetrates through the first sliding block and a screw rod nut fixed on the first sliding block; when the screw rod rotates under the driving of the motor, the screw rod nut horizontally moves along the axial direction of the screw rod, so that the first sliding block is driven to horizontally move.
In an embodiment of the present invention, the driving assembly includes a motor and a telescopic rod; one end of the telescopic rod is connected with the motor, and the other end of the telescopic rod is connected with the first sliding block; when the motor drives the telescopic rod to horizontally extend and retract, the telescopic rod drives the first sliding block to horizontally move.
In an embodiment of the utility model, the driving assembly further includes a speed reducer disposed between the motor and the lead screw or the push rod for controlling the motor to reduce speed and increase torque.
In an embodiment of the utility model, the base is further provided with a fixing frame for fixing the driving assembly.
To achieve the above and other related objects, the present invention provides a scanning bed comprising: scanning a bed body of the bed; the lifting device in the above embodiment; the scanning bed body is arranged on the lifting device.
As described above, the lifting device and the scanning bed using the lifting device according to the present invention have the following advantages: the lifting device is simple in structure, safe and reliable; wherein, the transmission part (for example, screw drive, telescopic link drive) among the drive assembly provides stable horizontal motion, and first slider, support frame provide fine rigidity for the scanning bed is more stable firm.
Drawings
Fig. 1 is a schematic structural diagram of a lifting device and a scanning bed using the lifting device in an embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of a lifting device and a scanning bed using the lifting device in an embodiment 2 of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle", "lateral", "longitudinal", and the like used in the present specification are used for indicating the orientation or the positional relationship, and are not intended to limit the scope of the present invention, but are also regarded as the scope of the present invention without substantial technical changes.
Furthermore, the terms "first" and "second" are used only to distinguish between different objects and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in actual implementation, the form, quantity and proportion of each component in actual implementation can be changed freely, and the layout of the components can be more complicated.
The utility model provides a lifting device for solving the technical problems of potential safety hazards, complex structure, poor stability and the like of the conventional lifting device. It should be noted that, the lifting device provided by this embodiment not only can be applied to the field of medical equipment, but also can be applied to various fields that need lifting and unloading or maintenance and repair such as parking lots, factories, docks, warehouses, etc., and therefore, the application fields thereof are wide and are not described in detail. In addition, for the convenience of understanding, the following embodiments only illustrate specific structures of the lifting device by taking applications in the field of medical devices as examples, but it should be understood that the lifting device is not limited to the applications in the field of medical devices.
As shown in fig. 1, the present application provides a lifting device, which mainly includes: the base 100, the first slider 200, the driving assembly 300, the supporting frame 400, and the second slider 500.
Specifically, a first slider 200 is disposed on the base 100; the driving assembly 300 is disposed at one end of the base 100, and is connected to the first slider 200 to drive the first slider 200 to move horizontally; the supporting frame 400 is arranged at the other end of the base 100, and a second sliding block 500 is arranged between the supporting frame and the first sliding block 200; the second sliding block 500 is slidably connected with the supporting frame 400 and can move up and down relative to the supporting frame 400; and the bottom of the second slider 500 is an inclined surface facing the first slider 200. When the driving assembly 300 drives the first slider 200 to move toward or away from the supporting frame 400, the first slider 200 changes the force direction of the second slider 500, so that the second slider 500 moves up and down relative to the supporting frame 400.
In some examples, the first sliding block 200 may be any one of a polygonal block body such as a wedge block, a triangle block, a right trapezoid block, and the like, and one side of the polygonal block body is an inclined slope. At this time, the top of the first slider 200 is a slope parallel to and slidably connected to the slope of the second slider 500. The slope provides good rigidity for the second slider 500, so that the device is more stable and firm.
The slope surface of the first slider 200 and the slope surface of the second slider 500 are slidably connected, and the connection mode between the two includes: 1) for example, one of the two planes is configured as a slot structure, and the other plane is engaged with the slot structure, so that the two planes can slide horizontally. The clamping connection can effectively prevent the two from inclining and dislocating. Preferably, both flat surfaces are smooth flat surfaces in order to reduce drag. 2) The first sliding assembly 700 is additionally arranged for connection, and the first sliding assembly 700 can be a combination of a pulley and a sliding groove; or a combination of a rail slider and a rail. The pulleys and sliding grooves (or guide rail sliders and guide rails) in the first sliding assembly 700 are respectively located on one and the other of the slope surface of the first sliding block 200 and the slope surface of the second sliding block 500, and the first sliding block 200 and the second sliding block 500 are connected through the first sliding assembly 700 to realize relative oblique sliding.
In addition, the first slider 200 may also be a rectangular block or a square block. At this time, an edge of the top of the first slider 200 is slidably connected to the inclined surface of the second slider 500, and the connection between the two is as follows: a) the direct snap connection is, for example, the edge of the top of the first slider 200 is configured as a snap groove structure, and the inclined surface of the second slider 500 is snapped therein (or the inclined surface of the second slider 500 is configured as a snap groove structure, and the edge of the top of the first slider 200 is snapped therein), so that the two can slide relatively; b) the connection is performed by adding a sliding assembly, for example, a guide rail slider is arranged on the edge of the top of the first slider 200, a guide rail is arranged on the inclined surface of the second slider 500, and the guide rail slider and the guide rail are connected in a clamping manner, so that the edge of the top of the first slider 200 and the inclined surface of the second slider 500 can slide relatively.
In some examples, the sliding connection between the first slider 200 and the base 100 includes: 1) for example, one of the two members is configured as a slot structure, and the other member is engaged with the slot structure, so that the two members can slide relative to each other. The clamping connection can effectively prevent the two from dislocation and derailment. Preferably, both flat surfaces are smooth flat surfaces in order to reduce drag. 2) The connection is realized by additionally arranging a second sliding assembly 800, and the second sliding assembly 800 can be a combination form of a pulley and a sliding groove; or a combination of a rail slider and a rail. The pulleys and chutes (or guide rails and sliders) of the second sliding assembly 800 are respectively located at one and the other of the bottom of the first sliding block 200 and the upper side of the base 100, and the first sliding block 200 and the base 100 are horizontally slid relative to each other through the connection of the second sliding assembly 800.
In some examples, the support frame 400 is used to determine the initial height of the external device, and may be any one of polygonal structures such as rectangular blocks, triangular blocks, wedge-shaped blocks, etc., and may be solid or hollow. The support frame 400 may also be a combination structure of a support plate, an L-shaped support frame, a triangular bracket, etc. In addition, the supporting frame 400 may be a fixed height, which is lower than the minimum height required by the external device; in this embodiment, the height of the support frame 400 is lower than the lowest height of the medical bed. The support 400 may also be retractable and foldable to provide a support and balance for external devices.
It should be noted that the supporting frame 400 and the base 100 may be designed integrally, that is, in a product factory state, the supporting frame 400 is already fixedly connected to one end of the base 100, so that a user may omit an installation step, and time and cost are saved, and the fixed connection manner includes, but is not limited to, a welding connection, an adhesive connection, an interference fit connection, and the like; of course, the supporting frame 400 and the base 100 may also be designed separately, that is, in a factory state of a product, the supporting frame 400 and the base 100 are placed separately, and a working mode needs to be achieved by combining and connecting the supporting frame 400 and the base 100, and the combining and connecting manner includes, but is not limited to, threaded connection, snap connection, magnetic connection, and the like.
In some examples, the second slider 500 is any one of polygonal blocks such as a wedge block, a triangle block, a right trapezoid block, etc., and the bottom thereof is an inclined surface facing the first slider 200; the top of which is a horizontal plane for carrying external devices 510, such as: a scanning bed body, a case and the like. Preferably, the side surface of the support frame is a vertical surface, is slidably connected with the support frame 400, and can vertically move up and down relative to the support frame 400. When the contact surface formed by the sliding connection of the second slider 500 and the support frame 400 is not a vertical surface, the second slider 500 moves up and down while causing a relative horizontal displacement.
It should be noted that, the second slider 500 and the supporting frame 400 are slidably connected, and the connection manner between the two includes: 1) for example, one of the two members is configured as a slot structure, and the other member is engaged with the slot structure, so that the two members can slide vertically. The clamping connection can effectively prevent the two from dislocation and derailment. Preferably, both flat surfaces are smooth flat surfaces in order to reduce drag. 2) The third sliding assembly 900 is additionally arranged for connection, and the third sliding assembly 900 can be in a combination form of a pulley and a sliding groove; or a combination of a rail slider and a rail. The pulleys and chutes (or guide rails and sliders) of the third sliding assembly 900 are respectively located on one and the other of the lateral surfaces of the second sliding block 500 and the lateral surfaces of the supporting frame 400, and the second sliding block 500 and the supporting frame 400 are vertically slid relative to each other through the connection of the third sliding assembly 900.
It should be noted that the above is connected by adding a sliding assembly, and the sliding assembly includes, but is not limited to, a combination of a pulley and a chute, and a guide rail and a slide block. The advantage of addding the slip subassembly lies in: the friction resistance is small, the movement is stable, and the sensitivity is high; the abrasion is small, and the service life is long.
In some examples, the base 100 is further provided with a fixing frame 600 fixedly connected to the other end of the driving assembly 300 (one end of the driving assembly 300 is connected to the first sliding block 200). The fixing frame 600 is used for fixing the driving assembly 300 to prevent the driving assembly from sliding horizontally.
Fig. 1 is a schematic structural view of a lifting device in an embodiment 1 of the present invention.
Specifically, the driving assembly 300 includes: a motor 310, a screw 320 and a reducer 330; one end of the speed reducer 330 is connected to the motor 310, and the other end is connected to the screw 320. The motor 310 drives the screw 320 to provide horizontal transmission; the speed reducer 330 is used for reducing the rotation speed and inertia and increasing the torque.
In this embodiment, the first sliding block 200 is a wedge-shaped block, the top of the wedge-shaped block is a slope surface parallel to the inclined surface of the bottom of the second sliding block 500, and a first sliding assembly 700 is disposed between the slope surface of the top of the first sliding block 200 and the inclined surface of the bottom of the second sliding block 500; a second sliding assembly 800 is arranged between the bottom of the first sliding block 200 and the base 100. The second sliding block 500 is a right triangle, and the top horizontal plane of the second sliding block is used for bearing external equipment 510; the vertical surface of the side part of the second slider 500 is slidably connected with the support frame 400, and a third sliding assembly 900 is arranged between the vertical surface of the side part of the second slider 500 and the support frame 400.
Two sides of the top of the first slider 200 are provided with first guide rail sliders 710, and two sides of the inclined surface of the bottom of the second slider 500 are provided with first guide rails 720, so that the first slider 200 can slide obliquely relative to the second slider 500; two sides of the bottom of the first slider 200 are provided with second guide rail sliders 810, and the base 100 is provided with second guide rails 820, so that the first slider 200 can horizontally slide relative to the base 100; third guide rail sliders 910 are disposed on two sides of a vertical surface of the side portion of the second slider 500, and third guide rails 920 are disposed on two sides of a vertical surface of the support frame 400, so that the second slider 500 can vertically slide relative to the support frame 400.
It should be noted that, the connection modes between the first rail slider 710 and the top of the first slider 200, between the second rail slider 810 and the bottom of the first slider 200, and between the third rail slider 910 and the vertical surface of the second slider 500 include, but are not limited to, threaded connection, adhesive connection, snap connection, welded connection, interference fit connection, magnetic connection, and the like. The first guide rail 720 and the inclined surface at the bottom of the second slider 500, the second guide rail 820 and the base 100, and the third guide rail 920 and the support frame 400 are connected by a connection method including, but not limited to, a threaded connection, an adhesive connection, a snap connection, a welding connection, an interference fit connection, a magnetic connection, and the like.
In some examples, one end of the screw rod 320 is connected to the reducer 330, and the other end is fixed to the support frame 400. For example: a limit hole is formed on the vertical surface of the support frame 400, so that the other end of the screw rod 320 can pass through the limit hole to be fixed. Meanwhile, the lead screw 320 passes through the first slider 200 and a lead screw nut fixed to the first slider 200. When the motor 310 drives the lead screw 320 to rotate, the lead screw nut can move horizontally along the axial direction of the lead screw 320, so as to drive the first sliding block 200 to slide horizontally.
Fig. 2 is a schematic structural view of a lifting device in an embodiment 2 of the present invention.
Specifically, the driving assembly 300 includes: a speed reduction motor 310 and a telescopic rod 320; one end of the telescopic rod 320 is connected to the speed reduction motor 310, and the other end is fixedly connected to the first sliding block 200. The connection mode between the first slider 200 and the telescopic rod 320 includes, but is not limited to, adhesive connection, snap connection, welding connection, interference fit connection, magnetic connection, and the like. When the reduction motor 310 drives the telescopic rod 320 to perform a telescopic motion, the first sliding block 200 is driven by the telescopic rod 320 to horizontally slide.
It should be noted that the drive assembly 300 may be any one of a variety of components that can be used to linearly drive, such as a hydraulic cylinder, an electric push rod, and the like.
In this embodiment, the first slider 200 and the second slider 500 are both designed as right-angled triangles, the inclined surfaces of the two are disposed in parallel, and the first sliding assembly 700 is disposed between the two to realize sliding connection. A second sliding assembly 800 is further disposed between the bottom of the first sliding block 200 and the base 100. The top horizontal surface of the second slider 500 serves as a platform for carrying an external device 510; the vertical surface of the side part is placed in parallel with the supporting frame 400, and a third sliding assembly 900 is arranged between the vertical surface and the supporting frame.
The installation positions and installation manners of the first sliding assembly 700, the second sliding assembly 800, and the third sliding assembly 900 are similar to those of the foregoing embodiment 1, and other installation configurations may also be used, for example: the three sets of sliding assemblies can be selectively installed in any one or more sets.
In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (13)
1. A lifting device, characterized in that the device comprises:
the base is provided with a first sliding block;
the driving assembly is arranged at one end of the base and connected with the first sliding block so as to drive the first sliding block to horizontally move;
the supporting frame is arranged at the other end of the base;
the second sliding block is arranged between the first sliding block and the supporting frame, is connected with the supporting frame in a sliding mode, and can move up and down relative to the supporting frame; the bottom of the second sliding block is an inclined surface facing the first sliding block;
when the driving assembly drives the first sliding block to move close to or away from the supporting frame, the first sliding block changes the stress direction of the second sliding block in sliding connection, so that the second sliding block moves up and down relative to the supporting frame.
2. The lifting device as claimed in claim 1, wherein the top of the second sliding block is a horizontal plane for carrying external devices; the plane of the second sliding block in sliding connection with the supporting frame is a vertical plane.
3. The lifting device as claimed in claim 2, wherein the external device is a bed of a scanning bed.
4. The lifting device as claimed in claim 1, wherein the first sliding block is a rectangular block, and the edge of the top of the first sliding block near the inclined surface is slidably connected with the inclined surface of the second sliding block.
5. The lifting device as claimed in claim 1, wherein the top of the first sliding block is provided with a slope parallel to and slidably connected with the slope of the second sliding block.
6. A lifting device as claimed in claim 5, wherein a first slide assembly is provided between the first and second slides.
7. A lifting device as claimed in claim 1, wherein a second slide assembly is provided between the first slide and the base; and/or a third sliding assembly is arranged between the second sliding block and the supporting frame.
8. The lifting device as claimed in claim 7, wherein a first sliding assembly is provided between the first slider and the second slider; wherein the content of the first and second substances,
the first sliding assembly, the second sliding assembly and the third sliding assembly all comprise: a pulley and a chute; or, the first sliding assembly, the second sliding assembly and the third sliding assembly all comprise: a guide rail slide block and a guide rail.
9. A lifting device as claimed in claim 1, wherein the drive assembly comprises a motor and a lead screw;
one end of the screw rod is connected with the motor, and the other end of the screw rod is fixedly connected with the support frame; the screw rod penetrates through the first sliding block and a screw rod nut fixed on the first sliding block;
when the screw rod rotates under the driving of the motor, the screw rod nut horizontally moves along the axial direction of the screw rod, so that the first sliding block is driven to horizontally move.
10. A lifting device as claimed in claim 1, wherein the drive assembly comprises a motor and a telescopic rod;
one end of the telescopic rod is connected with the motor, and the other end of the telescopic rod is connected with the first sliding block;
when the motor drives the telescopic rod to horizontally extend and retract, the telescopic rod drives the first sliding block to horizontally move.
11. The lifting device as claimed in claim 9, wherein the driving assembly further comprises a speed reducer disposed between the motor and the lead screw for controlling the motor to reduce speed and increase torque.
12. The lifting device as claimed in claim 1, wherein the base further comprises a fixing frame for fixing the driving assembly.
13. A scanning bed, comprising:
scanning a bed body of the bed;
the lifting device as claimed in any one of claims 1-12; the scanning bed body is arranged on the lifting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122856493.7U CN216272882U (en) | 2021-11-19 | 2021-11-19 | Lifting device and scanning bed using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122856493.7U CN216272882U (en) | 2021-11-19 | 2021-11-19 | Lifting device and scanning bed using same |
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| Publication Number | Publication Date |
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| CN216272882U true CN216272882U (en) | 2022-04-12 |
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| CN202122856493.7U Active CN216272882U (en) | 2021-11-19 | 2021-11-19 | Lifting device and scanning bed using same |
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| CN (1) | CN216272882U (en) |
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- 2021-11-19 CN CN202122856493.7U patent/CN216272882U/en active Active
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