CN111449869A - Lifting guardrail and nursing bed - Google Patents
Lifting guardrail and nursing bed Download PDFInfo
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- CN111449869A CN111449869A CN202010375192.XA CN202010375192A CN111449869A CN 111449869 A CN111449869 A CN 111449869A CN 202010375192 A CN202010375192 A CN 202010375192A CN 111449869 A CN111449869 A CN 111449869A
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- Prior art keywords
- connecting rod
- rod
- gear
- lifting
- link
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
- A61G7/012—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame raising or lowering of the whole mattress frame
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
- A61G7/0507—Side-rails
- A61G7/0516—Side-rails with height adjustability
Abstract
The application provides a lifting guardrail and nursing bed relates to the medical instrument field. The lifting guardrail comprises an upper cross rod, a lower cross rod, a middle telescopic rod, a first upper connecting rod, a second upper connecting rod, a first lower connecting rod and a second lower connecting rod. The middle telescopic rod is positioned between the upper cross rod and the lower cross rod and comprises a first part and a second part which can slide relatively. The upper end of the first upper connecting rod is hinged to the upper cross rod, and the lower end of the first upper connecting rod is hinged to the first part. The upper end of the second upper connecting rod is hinged to the upper cross rod, and the lower end of the second upper connecting rod is hinged to the second part. The upper end of the first lower connecting rod is hinged to the first part, and the lower end of the first lower connecting rod is hinged to the lower cross rod. The upper cross rod and the middle telescopic rod can be linked to open or retract the lifting guardrail. When the lifting guardrail is opened, the middle telescopic rod can be used as a middle railing of the lifting guardrail, and the situation that the upper cross rod and the lower cross rod cannot play a protection role due to too large distance between the upper cross rod and the lower cross rod is avoided.
Description
Technical Field
The application relates to the technical field of medical equipment, particularly, relate to a lifting guardrail and nursing bed.
Background
At present, a nursing bed mainly comprises a bed body, guardrails, a bed head and a bed tail plate and accessories thereof. Wherein, the guardrail possesses raising and lowering functions usually to people get on or off the bed. The guardrail that has now on the market, when being in the shrink state, the rail of the drive arrangement that the guardrail goes up and down and guardrail still can expose in patient's field of vision, can produce unfriendly psychological suggestion to patient, is unfavorable for patient to resume physical and mental health.
Disclosure of Invention
The embodiment of the application provides a lifting guardrail and a nursing bed to improve the problem that the railing and the lifting driving mechanism of the existing lifting guardrail are still exposed when being contracted.
In a first aspect, an embodiment of the present application provides a lifting guardrail, including an upper cross bar, a lower cross bar, a middle telescopic rod, a first upper connecting rod, a second upper connecting rod, a first lower connecting rod and a second lower connecting rod. The middle telescopic rod is positioned between the upper cross rod and the lower cross rod and comprises a first part and a second part which can slide relatively. The upper end of the first upper connecting rod is hinged to the upper cross rod, and the lower end of the first upper connecting rod is hinged to the first part. The upper end of the second upper connecting rod is hinged to the upper cross rod, and the lower end of the second upper connecting rod is hinged to the second part. The upper end of the first lower connecting rod is hinged to the first part, and the lower end of the first lower connecting rod is hinged to the lower cross rod. The upper end of the second lower connecting rod is hinged to the second part, and the lower end of the second lower connecting rod is hinged to the lower cross rod.
In the above technical scheme, two ends of the first upper connecting rod are respectively hinged to the upper cross rod and the first part. Two ends of the second upper connecting rod are respectively hinged to the upper cross rod and the second part. Two ends of the first lower connecting rod are respectively hinged to the first part and the lower cross rod. The both ends of second lower connecting rod articulate respectively in second part and sheer pole, when the lift guardrail will be packed up, first upper connecting rod and second upper connecting rod can drive the horizontal pole and remove to the direction that is close to the sheer pole while first lower connecting rod and second lower connecting rod can drive the direction removal that middle telescopic link is close to the sheer pole, when the lift guardrail will be opened, first upper connecting rod and second upper connecting rod can drive the horizontal pole and remove to the direction of keeping away from the sheer pole while first lower connecting rod and second lower connecting rod can drive the direction removal that middle telescopic link was kept away from the sheer pole promptly and go up horizontal pole and middle telescopic link and can realize the linkage. And, middle telescopic link is vertical to be located between entablature and the sheer pole, and when the lift guardrail was opened, middle telescopic link can regard as the middle railing of lift guardrail, avoids between entablature and the sheer pole too big and can't play the guard action.
In addition, the lifting guardrail of the embodiment of the first aspect of the application also has the following additional technical characteristics:
In some embodiments of the first aspect of the present application, the lower end of the first upper link is drivingly connected to the upper end of the first lower link through a first synchronizing structure.
Among the above-mentioned technical scheme, the setting of first synchronization structure makes in first upper connecting rod and the first connecting rod down one motion can drive another motion promptly to realize the up-and-down simultaneous movement of lift guardrail, when making packing up or opening of lift guardrail, the motion of last horizontal pole and middle telescopic link can be unanimous.
In some embodiments of the first aspect of the present application, the first synchronizing structure comprises a first gear and a second gear; the first gear is fixed at the lower end of the first upper connecting rod, the second gear is fixed at the upper end of the first lower connecting rod, and the first gear is meshed with the second gear.
Among the above-mentioned technical scheme, first synchronization structure includes first gear and the second gear of being connected with first upper connecting rod and first lower connecting rod respectively, and first upper connecting rod and first lower connecting rod pass through gear synchronous transmission and connect promptly, and not only synchronous effectual, simple structure moreover can not extra increase the structure of lift guardrail.
In some embodiments of the first aspect of the present application, the lower end of the second upper link is drivingly connected to the upper end of the second lower link through a second synchronizing structure.
Among the above-mentioned technical scheme, the setting of second synchronization structure makes in the second connecting rod and the second lower connecting rod one motion can drive another motion promptly to realize the up-and-down simultaneous movement of lift guardrail, when making packing up or opening of lift guardrail, go up the motion of horizontal pole and middle telescopic link and can be unanimous.
In some embodiments of the first aspect of the present application, the second synchronizing structure comprises a third gear and a fourth gear; the third gear is fixed at the lower end of the second upper connecting rod, the fourth gear is fixed at the upper end of the second lower connecting rod, and the third gear is meshed with the fourth gear.
Among the above-mentioned technical scheme, the second synchronization structure includes third gear and the fourth gear of being connected with connecting rod and second lower connecting rod on the second respectively, and connecting rod and second lower connecting rod pass through gear synchronous transmission and connect promptly on the second, and not only synchronous effectual, simple structure can not extra increase the structure of lift guardrail moreover.
In some embodiments of the first aspect of the present application, the lower end of the first lower link is drivingly connected to the lower end of the second lower link through a third synchronizing structure.
Among the above-mentioned technical scheme, because the lift guardrail has certain length, first lower connecting rod and second lower connecting rod interval arrangement in the length direction of lift guardrail, the relative sheer pole of the lower extreme of connecting rod then rotates and then has the circumstances of postponing, asynchronous under the lower extreme of first lower connecting rod and second lower connecting rod so, then the setting of third synchronization structure can make the lower extreme of first lower connecting rod and the lower extreme synchronous motion of second lower connecting rod, be convenient for packing up or opening of lift guardrail.
In some embodiments of the first aspect of the present application, the third synchronizing structure comprises a first synchronizing wheel, a second synchronizing wheel, and a flexible drive; the first synchronizing wheel is fixed at the lower end of the first lower connecting rod, the second synchronizing wheel is fixed at the lower end of the second lower connecting rod, and the flexible transmission piece is wound on the first synchronizing wheel and the second synchronizing wheel in an 8-shaped winding method.
Among the above-mentioned technical scheme, the third synchronizing construction is flexible transmission structure, is fit for the synchronous transmission of the part between the great distance, and flexible transmission spare is around establishing on first synchronizing wheel and second synchronizing wheel with "8" style of calligraphy winding method for first synchronizing wheel and second synchronizing wheel rotation direction are opposite, make first lower connecting rod and second lower connecting rod can drive middle flexible member spare to rise or descend in step.
In some embodiments of the first aspect of the present application, the lifting barrier has an open state in which a spacing between the upper rail and the lower rail is greater than a spacing between the upper rail and the lower rail in the stowed state; when the lifting guardrail is in an opening state, the middle telescopic rod is in an extending state; when the lifting guardrail is in a retracted state, the middle telescopic rod is in a shortened state.
Among the above-mentioned technical scheme, when the lift guardrail is in the open mode, middle telescopic link extension for middle telescopic link can play the effect of middle railing, better plays the guard action. When the lifting guardrail is in a retracting state, the middle telescopic rod is in a shortening state, so that the middle telescopic rod can also be retracted, the retracting state is achieved, and the size of the whole lifting guardrail in the retracting state can be reduced.
In some embodiments of the first aspect of the present application, the intermediate telescoping rod further comprises a lock assembly for locking the intermediate telescoping rod in the extended state and an unlock assembly for unlocking the lock assembly from the intermediate telescoping rod.
Among the above-mentioned technical scheme, the lock subassembly can make middle telescopic link lock in the extension state to make the maintenance that the lift guardrail can be stable open mode, avoid under the effect of the gravity of last horizontal pole lift guardrail automatic switch to the state of packing up. The subassembly of unblanking can relieve the lock subassembly to the locking of middle telescopic link, and the lift guardrail of being convenient for is packed up.
In some embodiments of the first aspect of the present application, the first portion is provided with a locking aperture and the lock assembly is provided on the second portion; the lock assembly comprises a lock pin inserted into the lock hole, the unlocking assembly comprises a push block and a button, the push block is used for pushing the lock pin to move so that the lock pin exits from the lock hole, the button is arranged at one end of the middle telescopic rod, and the button is used for triggering the push block to act.
Among the above-mentioned technical scheme, the lock subassembly is simple with the structure of subassembly of unblanking to the setting of button is convenient for the user drive lock subassembly and is with middle telescopic link unblock.
In some embodiments of the first aspect of the present application, the upper cross bar is provided with a first receiving groove, and the lower cross bar is provided with a second receiving groove; when the lifting guardrail is in a retracted state, the upper cross rod and the lower cross rod are closed, the middle telescopic rod is accommodated in the first accommodating groove and the second accommodating groove, the first upper connecting rod and the second upper connecting rod are accommodated in the first accommodating groove, and the first lower connecting rod and the second lower connecting rod are accommodated in the second accommodating groove.
Among the above-mentioned technical scheme, when the lift guardrail was packed up, in first holding tank and the second holding tank were acceptd to middle telescopic link, connecting rod all acceptd in first holding tank on first connecting rod and the second, connecting rod and second are acceptd in the second holding tank under first connecting rod and the second, can reduce the space that occupies when the lift guardrail packed up, can also avoid middle telescopic link, first connecting rod, connecting rod on the second, connecting rod and second lower connecting rod expose and cause not good user experience in the visible within range of user.
In a second aspect, an embodiment of the present application provides a nursing bed, including the lifting guardrail provided in the embodiment of the first aspect.
Among the above-mentioned technical scheme, the linkage can be realized to last horizontal pole and middle telescopic link of the lift guardrail of nursing bed to realize packing up or opening of lift guardrail. And, middle telescopic link is vertical to be located between entablature and the sheer pole, and when the lift guardrail was opened, middle telescopic link can regard as the middle railing of lift guardrail, avoids between entablature and the sheer pole too big and can't play the guard action.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural view of a lifting guardrail provided in an embodiment of the first aspect of the present application;
Fig. 2 is a schematic view of an opened state of a lifting guardrail provided in an embodiment of the first aspect of the present application;
Fig. 3 is a schematic view of a retracted state of the lifting fence according to an embodiment of the first aspect of the present application;
FIG. 4 is a schematic view of the construction of a lifting fence according to other embodiments of the present application;
FIG. 5 is an enlarged view at V in FIG. 2;
Fig. 6 is a schematic view of the lock assembly and the unlock assembly.
Icon: 100-lifting guardrails; 10-upper cross bar; 11-a first accommodating groove; 20-a lower cross bar; 21-a second accommodating groove; 30-a middle telescopic rod; 31-a first part; 311-a keyhole; 32-a second portion; 40-a first upper link; 41-a first gear; 50-a second upper link; 51-a third gear; 60-a first lower link; 61-a second gear; 62-a first synchronizing wheel; 70-a second lower link; 71-a fourth gear; 72-a second synchronizing wheel; 73-a flexible transmission; 80-a lock body; 81-locking pin; 811-roll axis; 82-a first spring; 83-a push block; 831-inclined plane; 84-a push rod; 85-a button; 86-second spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Examples
As shown in fig. 1, the embodiment of the first aspect of the present application provides a lifting guardrail 100, and the lifting guardrail 100 includes an upper cross bar 10, a lower cross bar 20, an intermediate telescopic rod 30, a first upper link 40, a second upper link 50, a first lower link 60, and a second lower link 70. The intermediate telescoping rod 30 is positioned between the upper cross bar 10 and the lower cross bar 20, and the intermediate telescoping rod 30 includes a first portion 31 and a second portion 32 that are slidable relative to each other. The upper end of the first upper link 40 is hinged to the upper cross bar 10, and the lower end of the first upper link 40 is hinged to the first portion 31. The upper end of the second upper link 50 is hinged to the upper cross bar 10 and the lower end of the second upper link 50 is hinged to the second portion 32. The upper end of the first lower link 60 is hinged to the first portion 31, and the lower end of the first lower link 60 is hinged to the lower cross bar 20. The upper end of the second lower link 70 is hinged to the second portion 32 and the lower end of the second lower link 70 is hinged to the lower cross bar 20.
The lifting fence 100 has an open state in which the interval between the upper rail 10 and the lower rail 20 is greater than the interval between the upper rail 10 and the lower rail 20 in the stowed state, as shown in fig. 2, and a stowed state. When the lifting guardrail 100 is in the open state, the middle telescopic rod 30 is in the extension state; as shown in fig. 3, when the lifting fence 100 is in the stowed state, the intermediate telescoping pole 30 is in the shortened state. When the lifting guardrail 100 is in an open state, the middle telescopic rod 30 extends, so that the middle telescopic rod 30 can play a role of a middle railing and can play a better protection role. When the lifting guardrail 100 is in the retracted state, the intermediate telescopic rod 30 is in the shortened state, so that the intermediate telescopic rod 30 can also be retracted, and the volume of the whole lifting guardrail 100 in the retracted state can be reduced. The upper rail 10 is always in a horizontal state during the process of folding or unfolding the lifting fence 100.
In this embodiment, the upper cross bar 10 is provided with a first receiving groove 11, a notch of the first receiving groove 11 faces the lower cross bar 20, the lower cross bar 20 is provided with a second receiving groove 21, and a notch of the second receiving groove 21 faces the upper cross bar 10. The upper end of the first upper link 40 and the upper end of the second upper link 50 are both hinged in the first receiving groove 11, and the lower end of the first lower link 60 and the lower end of the second lower link 70 are both hinged in the second receiving groove 21. When the lifting guardrail 100 is in a retracted state, the upper cross bar 10 and the lower cross bar 20 are closed, the middle telescopic bar 30 is accommodated in the first accommodating groove 11 and the second accommodating groove 21, the first upper connecting rod 40 and the second upper connecting rod 50 are both accommodated in the first accommodating groove 11, the first lower connecting rod 60 and the second lower connecting rod 70 are accommodated in the second accommodating groove 21, the space occupied when the lifting guardrail 100 is retracted can be reduced, and the middle telescopic bar 30, the first upper connecting rod 40, the second upper connecting rod 50 and the second lower connecting rod 70 can be prevented from being exposed in the visible range of a user to cause bad user experience.
In this embodiment, when the middle telescopic rod 30 is extended, the distance between the hinge position of the upper end of the first upper link 40 and the upper cross bar 10 and the hinge position of the upper end of the second upper link 50 and the upper cross bar 10 is greater than the distance between the hinge position of the lower end of the first upper link 40 and the first portion 31 and the hinge position of the lower end of the second upper link 50 and the second portion 32, and the first upper link 40 and the second upper link 50 are arranged in a reverse-eight shape; the distance between the hinge position of the upper end of the first lower link 60 and the first portion 31 and the hinge position of the upper end of the second lower link 70 and the second portion 32 is smaller than the distance between the hinge position of the lower end of the first lower link 60 and the lower cross bar 20 and the hinge position of the lower end of the second lower link 70 and the lower cross bar 20, and the first lower link 60 and the second lower link 70 are arranged in a splayed shape.
In order to avoid clamping the user due to the gravity of the upper cross bar 10 causing the upper cross bar 10 to descend too fast, the hinge joint of the first upper link 40 and the upper cross bar 10, the hinge joint of the first upper link 40 and the first portion 31, the hinge joint of the second upper link 50 and the upper cross bar 10, the hinge joint of the second upper link 50 and the second portion 32, the hinge joint of the first lower link 60 and the first portion 31, the hinge joint of the first lower link 60 and the lower cross bar 20, the hinge joint of the second lower link 70 and the second portion 32, and the hinge joint of the second lower link 70 and the lower cross bar 20 can be hinged by a torsion spring, a gas spring, a damping rod, and other components with a damping function. In this embodiment, a torsion spring is used at the hinge.
In other embodiments, as shown in fig. 4, the first and second upper links 40 and 50 may be in a splayed arrangement, and the first and second lower links 60 and 70 may be in an inverted splayed arrangement, wherein the intermediate telescoping rod 30 is in an extended state when the lifting fence 100 is in the stowed state and the intermediate telescoping rod 30 is in a shortened state when the lifting fence 100 is in the deployed state.
In other embodiments, the first upper link 40 and the second upper link 50 may be in a crossed arrangement, and the first lower link 60 and the second lower link 70 may also be in a crossed arrangement.
When the lifting fence 100 is to be retracted, the first and second upper links 40 and 50 are rotated with respect to the upper rail 10 by the gravity of the upper rail 10, so that the first portion 31 and the second portion 32 of the middle telescopic rod 30 move relatively (so that the middle telescopic rod 30 is shortened), the relative movement of the first portion 31 and the second portion 32 can drive the first lower link 60 and the second lower link 70 to rotate relative to the lower cross bar 20, the movement of the first upper link 40, the second upper link 50, the first lower link 60 and the second lower link 70 can drive the upper cross bar 10 and the middle telescopic rod 30 to move towards the direction close to the lower cross bar 20, that is, when the lifting guardrail 100 is in the opening process, the first upper connecting rod 40 and the second upper connecting rod 50 can drive the upper cross rod 10 to move in the direction away from the lower cross rod 20, and the first lower connecting rod 60 and the second lower connecting rod 70 can drive the middle telescopic rod 30 to move in the direction away from the lower cross rod 20, that is, the upper cross rod 10 and the middle telescopic rod 30 can be linked. And, middle telescopic link 30 is vertical to be located between entablature and sheer pole 20, and when lift guardrail 100 was opened, middle telescopic link 30 can regard as lift guardrail 100's middle railing, avoids between entablature 10 and the sheer pole 20 the interval too big and can't play the guard action.
In this embodiment, the first portion 31 is a sleeve rod, the second portion 32 is a sliding rod, the sliding rod is a hollow structure, the lower end of the second upper link 50 and the upper end of the second lower link 70 are both hinged to one end of the second portion 32, the other end of the second portion 32 is inserted into the first portion 31, a sliding block is fixed in the first portion 31 near the socket, the sliding block is made of a self-lubricating material, such as POM (thermoplastic crystalline polymer), nylon, brass, etc., the second portion 32 slides relative to the first portion 31 and is always in contact with the sliding block, and the sliding block provides a lubricant for sliding between the first portion 31 and the second portion 32, so as to reduce friction between the first portion 31 and the second portion 32, and facilitate opening or retracting of the lifting guardrail 100.
Further, the lower end of the first upper link 40 is drivingly connected with the upper end of the first lower link 60 through a first synchronizing structure. The first synchronous structure enables one of the first upper link 40 and the first lower link 60 to move to drive the other, so as to realize the up-and-down synchronous movement of the lifting guardrail 100, and enable the movement of the upper cross bar 10 and the middle telescopic bar 30 to be consistent when the lifting guardrail 100 is folded or unfolded.
Optionally, the first synchronization structure comprises a first gear 41 and a second gear 61; the first gear 41 is fixed at the lower end of the first upper connecting rod 40, the first gear 41 is rotatably connected to the first portion 31, the second gear 61 is fixed at the upper end of the first lower connecting rod 60, the second gear 61 is rotatably connected to the first portion 31, the first gear 41 is externally meshed with the second gear 61, namely, the first upper connecting rod 40 and the first lower connecting rod 60 are connected through gear synchronous transmission, the synchronization effect is good, the structure is simple, and the structure of the lifting guardrail 100 cannot be additionally increased.
In other embodiments, the first synchronization structure may also be in other structures, for example, the first synchronization structure includes a first pulley fixedly connected to the lower end of the first upper link 40, a second pulley rotatably connected to the first portion 31, a second pulley fixedly connected to the upper end of the first lower link 60, and a transmission belt rotatably connected to the first portion 31, the transmission belt being wound around the first pulley and the second pulley according to the "8" winding method, so that the rotation directions of the first upper link 40 and the first lower link 60 relative to the first portion 31 are opposite.
Further, the lower end of the second upper link 50 is drivingly connected to the upper end of the second lower link 70 through a second synchronizing structure. The first and second synchronizing structures are arranged such that one of the second upper link 50 and the second lower link 70 can move to drive the other, thereby realizing the vertical synchronizing movement of the lifting guardrail 100, and enabling the upper cross bar 10 and the middle telescopic bar 30 to move in unison when the lifting guardrail 100 is retracted or opened.
In the present embodiment, the second synchronizing structure includes the third gear 51 and the fourth gear 71; the third gear 51 is fixed at the lower end of the second upper connecting rod 50, the third gear 51 is rotatably connected to the second portion 32, the fourth gear 71 is fixed at the upper end of the second lower connecting rod 70, the fourth gear 71 is rotatably connected to the second portion 32, the third gear 51 is externally meshed with the fourth gear 71, namely, the second upper connecting rod 50 and the second lower connecting rod 70 are synchronously connected through gears in a transmission manner, so that the synchronous effect is good, the structure is simple, and the structure of the lifting guardrail 100 cannot be additionally increased.
In other embodiments, the second synchronization structure may have other forms, and the second synchronization structure in other embodiments may refer to the first synchronization structure.
The first synchronization structure and the second synchronization structure may be the same or different.
Since the nursing bed has a certain length and accordingly the lifting fence 100 has a certain length, the first lower link 60 and the second lower link 70 are spaced apart in the length direction of the lifting fence 100, and thus there is a delay in the rotation of the lower end of the first lower link 60 and the lower end of the second lower link 70 relative to the lower rail 20 and an unsynchronization of the rotation. In the present embodiment, the lower end of the first lower link 60 is drivingly connected to the lower end of the second lower link 70 through a third synchronizing structure. The third synchronization structure enables the lower end of the first lower connecting rod 60 and the lower end of the second lower connecting rod 70 to perform synchronous movement, so that the lifting guardrail 100 can be conveniently folded or unfolded, the situation that the first lower connecting rod 60 and the second lower connecting rod 70 cannot synchronously rotate due to too far distance between the lower ends of the first lower connecting rod 60 and the second lower connecting rod 70 is avoided, and the risk that the first lower connecting rod 60 and the second lower connecting rod 70 cannot synchronously rotate due to reasons such as rotation friction can be reduced.
In the present embodiment, the third synchronizing structure includes the first synchronizing wheel 62, the second synchronizing wheel 72, and the flexible transmission 73; the first synchronizing wheel 62 is fixed at the lower end of the first lower connecting rod 60, the first synchronizing wheel 62 is rotatably connected to the lower cross bar 20, the second synchronizing wheel 72 is fixed at the lower end of the second lower connecting rod 70, the second synchronizing wheel 72 is rotatably connected to the lower cross bar 20, and the flexible transmission member 73 is wound on the first synchronizing wheel 62 and the second synchronizing wheel 72 in an 8-shaped winding method. Since the first lower link 60 and the second lower link 70 are arranged in a splayed shape, the rotation directions of the first lower link 60 and the second lower link 70 relative to the lower cross bar 20 are opposite, and the flexible transmission member 73 is wound around the first synchronizing wheel 62 and the second synchronizing wheel 72 in an 8-shaped winding manner, so that the rotation directions of the first synchronizing wheel 62 and the second synchronizing wheel 72 are opposite, and the first lower link 60 and the second lower link 70 synchronously rotate in opposite directions.
The flexible transmission member 73 may be, for example, a transmission belt, a transmission chain, a steel wire rope, etc., and in this embodiment, the flexible transmission member 73 is a steel wire rope.
Since the lifting guardrail 100 can be retracted under the gravity of the upper cross bar 10, in this embodiment, as shown in fig. 2, 5 and 6, the middle telescopic bar 30 further includes a lock assembly for locking the middle telescopic bar 30 in the extended state and an unlock assembly for unlocking the lock assembly from the middle telescopic bar 30. The lock assembly enables the middle telescopic rod 30 to be locked in the extended state, so that the lifting guardrail 100 can be stably maintained in the open state, and the lifting guardrail 100 is prevented from being automatically switched to the retracted state under the action of the gravity of the upper cross bar 10. In addition, the unlocking assembly can unlock the lock assembly to the middle telescopic rod 30, facilitating the retraction of the lifting fence 100.
In the present embodiment, the first portion 31 is provided with a lock hole 311, and the lock assembly is provided on the second portion 32; the lock assembly comprises a lock pin 81 inserted into the lock hole 311, the unlocking assembly comprises a push block 83 and a button 85, the push block 83 is used for pushing the lock pin 81 to move so that the lock pin 81 exits from the lock hole 311, the button 85 is arranged at one end of the middle telescopic rod 30, and the button 85 is used for triggering the push block 83 to act.
The lock assembly further comprises a lock body 80, the lock body 80 being fixedly connected to the second portion 32, a lock pin 81 being connected to the housing via a first spring 82, the lock pin 81 being movable relative to the housing, the direction of movement of the lock pin 81 being perpendicular to the direction of extension and retraction of the intermediate telescopic rod 30.
The unlocking assembly comprises a push block 83, a push rod 84 and a push button 85, the push rod 84 penetrates through the hollow second portion 32, the push button 85 is connected to one end of the push rod 84, the push button 85 extends out of one end, far away from the first portion 31, of the second portion 32, the push block 83 is connected to the lock body 80 through a second spring 86, a user can drive the push block 83 to overcome the elastic force action of the second spring 86 through pushing the push rod 84, the moving directions of the push rod 84 and the push block 83 are consistent with the stretching direction of the middle telescopic rod 30, the push block 83 can drive the lock pin 81 to overcome the elastic force of the first spring 82 to exit the lock hole 311, so that the first portion 31 and the second portion 32 are unlocked, and the first portion 31 and the second portion 32 can move relatively.
The push block 83 is provided with a slope 831, and the lock pin 81 is provided with a roll shaft 811 abutting against the slope 831; the pushing block 83 moves to enable the roller shaft 811 to slide along the inclined surface 831 to enable the locking pin 81 to lock or unlock the first portion 31 and the second portion 32.
In the present embodiment, the locking hole 311 is provided at an end of the first portion 31 near the socket, and when the locking pin 81 is inserted into the locking hole 311, the lock assembly locks the lifting fence 100 in the most opened state (opened to the limit position). When the lifting guardrail 100 is retracted to the minimum state (retracted to the limit position), since the lifting guardrail 100 can be maintained in the retracted minimum state by the gravity of the upper cross bar 10, a lock assembly may not be required to lock the first part 31 and the second part 32, and of course, in order to maintain the lifting guardrail 100 in the minimum retracted state, another locking hole 311 may be provided at one end of the first part 31 away from the socket, and when the locking pin 81 is inserted into the locking hole 311, the lock assembly can lock the first part 31 and the second part 32 to maintain the lifting guardrail 100 in the retracted state.
In some embodiments, a plurality of locking holes 311 are arranged at intervals along the length direction of the first portion 31, and different locking holes 311 have different telescopic lengths corresponding to the intermediate telescopic members, so that the upper crossbar 10 can be located at different height positions corresponding to different opening degrees of the lifting fence 100, thereby adapting to different application scenarios.
The embodiment of the second aspect of the present application provides a nursing bed, which includes the lifting guardrail 100 provided in the embodiment of the first aspect. The upper cross bar 10 and the middle telescopic bar 30 of the lifting guardrail 100 of the nursing bed can realize linkage to realize the folding or unfolding of the lifting guardrail 100. And, middle telescopic link 30 is vertical to be located between entablature and sheer pole 20, and when lift guardrail 100 was opened, middle telescopic link 30 can regard as lift guardrail 100's middle railing, avoids between entablature 10 and the sheer pole 20 the interval too big and can't play the guard action.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (12)
1. A lifting fence, comprising:
An upper cross bar;
A lower cross bar;
The middle telescopic rod is positioned between the upper cross rod and the lower cross rod and comprises a first part and a second part which can slide relatively;
The upper end of the first upper connecting rod is hinged to the upper cross rod, and the lower end of the first upper connecting rod is hinged to the first part;
The upper end of the second upper connecting rod is hinged to the upper cross rod, and the lower end of the second upper connecting rod is hinged to the second part;
The upper end of the first lower connecting rod is hinged to the first part, and the lower end of the first lower connecting rod is hinged to the lower cross rod; and
And the upper end of the second lower connecting rod is hinged to the second part, and the lower end of the second lower connecting rod is hinged to the lower cross rod.
2. The lifting fence of claim 1, wherein the lower end of the first upper link is drivingly connected to the upper end of the first lower link by a first synchronization structure.
3. The lifting fence of claim 2, wherein the first synchronization structure comprises a first gear and a second gear;
The first gear is fixed at the lower end of the first upper connecting rod, the second gear is fixed at the upper end of the first lower connecting rod, and the first gear is meshed with the second gear.
4. The lifting fence of claim 2, wherein the lower end of the second upper link is drivingly connected to the upper end of the second lower link by a second synchronization structure.
5. The lifting fence of claim 4, wherein the second synchronization structure comprises a third gear and a fourth gear;
The third gear is fixed at the lower end of the second upper connecting rod, the fourth gear is fixed at the upper end of the second lower connecting rod, and the third gear is meshed with the fourth gear.
6. The lifting fence of claim 4, wherein the lower end of the first lower link is drivingly connected to the lower end of the second lower link by a third synchronization structure.
7. The lifting fence of claim 6, wherein the third synchronizing structure comprises a first synchronizing wheel, a second synchronizing wheel, and a flexible drive;
The first synchronizing wheel is fixed at the lower end of the first lower connecting rod, the second synchronizing wheel is fixed at the lower end of the second lower connecting rod, and the flexible transmission piece is wound on the first synchronizing wheel and the second synchronizing wheel in an 8-shaped winding method.
8. The lifting fence of any one of claims 1-7, wherein the lifting fence has an open state in which a spacing between the top rail and the bottom rail is greater than a spacing between the top rail and the bottom rail in the stowed state;
When the lifting guardrail is in an opening state, the middle telescopic rod is in an extending state;
When the lifting guardrail is in a retracted state, the middle telescopic rod is in a shortened state.
9. The lifting fence of claim 8, wherein the intermediate telescoping rod further comprises a lock assembly for locking the intermediate telescoping rod in the extended state and an unlock assembly for unlocking the lock assembly to the intermediate telescoping rod.
10. The lifting fence of claim 9 wherein the first portion has a locking hole disposed thereon and the lock assembly is disposed on the second portion;
The lock assembly comprises a lock pin inserted into the lock hole, the unlocking assembly comprises a push block and a button, the push block is used for pushing the lock pin to move so that the lock pin exits from the lock hole, the button is arranged at one end of the middle telescopic rod, and the button is used for triggering the push block to act.
11. The lifting fence of claim 8, wherein the upper rail has a first receiving groove and the lower rail has a second receiving groove;
When the lifting guardrail is in the retracted state, the upper cross rod and the lower cross rod are closed, the middle telescopic rod is accommodated in the first accommodating groove and the second accommodating groove, the first upper connecting rod and the second upper connecting rod are accommodated in the first accommodating groove, and the first lower connecting rod and the second lower connecting rod are accommodated in the second accommodating groove.
12. A care bed, characterized in that it comprises a lifting guardrail according to any one of claims 1-11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010375192.XA CN111449869A (en) | 2020-05-06 | 2020-05-06 | Lifting guardrail and nursing bed |
| PCT/CN2021/091933 WO2021223714A1 (en) | 2020-05-06 | 2021-05-06 | Lifting guardrail and nursing bed having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010375192.XA CN111449869A (en) | 2020-05-06 | 2020-05-06 | Lifting guardrail and nursing bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111449869A true CN111449869A (en) | 2020-07-28 |
Family
ID=71670615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010375192.XA Pending CN111449869A (en) | 2020-05-06 | 2020-05-06 | Lifting guardrail and nursing bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111449869A (en) |
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| CN111839941A (en) * | 2020-08-13 | 2020-10-30 | 广东博方众济医疗科技有限公司 | Lifting guardrail and nursing bed with same |
| CN112156285A (en) * | 2020-09-09 | 2021-01-01 | 谢明 | Intelligent surrounding type liquid medicine heater for venous transfusion |
| CN112587336A (en) * | 2020-12-08 | 2021-04-02 | 广东博方众济医疗科技有限公司 | Guardrail and nursing bed |
| CN113180956A (en) * | 2021-06-11 | 2021-07-30 | 宁波欣雷医疗设备有限公司 | Toilet bowl lifting mechanism of nursing bed |
| CN113180952A (en) * | 2021-06-11 | 2021-07-30 | 宁波欣雷医疗设备有限公司 | Multifunctional nursing bed |
| WO2021223714A1 (en) * | 2020-05-06 | 2021-11-11 | 广东博方众济医疗科技有限公司 | Lifting guardrail and nursing bed having same |
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Application publication date: 20200728 |