Novel anti-loosening nut for crank of nursing bed
By designing an anti-spinning nut assembly on the nursing bed crank handle, the interaction between the baffle and the buckle restricts the rotation of the nut, solving the problem of the crank handle and nut slippage, and improving the stability and safety of the device.
Patent Information
- Application Number
- CN202520120742.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-20
AI Technical Summary
The existing nursing bed crank handle is prone to the crank arm and nut becoming unscrewed when rotated to the end, resulting in increased usage costs and poor stability.
An anti-stripping nut assembly was designed, including a housing, a base, a slot, a buckle, and a spring. The interaction between the baffle and the buckle restricts the rotation of the nut, preventing stripping, and provides an audible prompt to the user to stop operation.
It effectively prevents the nut from unraveling from the screw, improves the stability and safety of the device, reduces the risk of mechanical failure, and lowers the cost of use.
Smart Images
Figure CN223708459U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical equipment technical field especially relates to a novel nursing bed rocking handle anti -unthreaded nut. BACKGROUND
[0002] In the design of modern nursing beds, rocking handles serve as an important adjustment device and are widely used to adjust the bed to meet the needs of patients in different nursing scenarios. The functionality and flexibility of nursing beds make rocking handles an indispensable component, as they not only help nursing staff easily adjust the height, inclination, and position of the bed, but also provide patients with a more comfortable and safe sleeping experience.
[0003] Among various old rocking handles, there is no device to reduce damage, and when the rocking handle is turned to the end, excessive shaking can directly cause the rocking lever and the nut to unthread, which requires frequent replacement, poor stability, and increased use cost. SUMMARY
[0004] To make up for the above shortcomings, the utility model provides a novel nursing bed rocking handle anti-unthreaded nut, aiming to improve the problem of excessive shaking causing the rocking lever and the nut to unthread in the prior art.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a novel nursing bed rocking handle anti-unthreaded nut, comprising a rocking lever, a screw rod fixedly connected to the outer wall of the rocking lever, two blocking pieces fixedly connected to the outer wall of the screw rod, and an anti-unthreading assembly provided on the outer wall of the screw rod.
[0006] Further description of the above technical scheme:
[0007] The anti-unthreading assembly comprises a housing, the housing is sleeved on the outer wall of the screw rod, two bases are fixedly connected to the inner wall of the housing, three clamping grooves are formed in the outer wall of the base and penetrate through the base, a nut is rotatably connected in the housing, a sliding groove is formed on the surface of the nut for sliding of two buckles 9, and a spring is fixedly connected between the two buckles.
[0008] Further description of the above technical scheme:
[0009] The diameter of the blocking piece is smaller than the diameter of the base, and the thickness of the buckle is greater than the thickness of the base.
[0010] Further description of the above technical scheme:
[0011] Two sides of the buckle away from each other are provided with inclined surfaces, and the directions of the two inclined surfaces are opposite.
[0012] Further description of the above technical scheme:
[0013] The buckle and the card slot are engaged.
[0014] As a further description of the above technical solution:
[0015] The nut is internally threaded connected to the outer wall of the screw rod.
[0016] As a further description of the above technical solution:
[0017] The outer wall of the end of the rocker away from the screw rod is sleeved with an anti-skid sleeve.
[0018] The utility model has the following beneficial effects:
[0019] 1、 the utility model discloses a prevent the nut from slipping off the screw rod, when the nut moves to the position of the baffle on the screw rod, the baffle will remove the engagement of the contact state of the buckle and the card slot through pushing, so that the nut does not continue to move after reaching the limit point, makes the nut and screw rod realize idling, and the rotating force can not be transmitted to the nut, effectively protects the threaded connection structure.
[0020] 2、 the utility model discloses when the rocker rotates to the limit position, the sound produced by the interaction of the baffle and the buckle reminds the user to stop operating, prevents the mechanical failure caused by excessive rotation. This sound prompting function effectively improves the safety of the equipment and reduces the operation risk. DRAWINGS
[0021] Figure 1 A three-dimensional view of a novel nursing bed rocking handle anti-slip nut is provided for the utility model;
[0022] Figure 2 An exploded view of the shell of a novel nursing bed rocking handle anti-slip nut is provided for the utility model;
[0023] Figure 3 A nut schematic view of a novel nursing bed rocking handle anti-slip nut is provided for the utility model.
[0024] LEGEND:
[0025] 1、 rocker;2、 baffle;3、 screw rod;4、 shell;5、 base;6、 card slot;7、 nut;8、 spring;9、 buckle;10、 inclined plane;11、 anti-skid sleeve. DETAILED DESCRIPTION
[0026] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.
[0027] With reference to Figures 1-3 The utility model provides an embodiment: a novel nursing bed rocking handle anti -unthreaded nut, including rocker 1, rocker 1 whole device main part, medical staff passes through the rotation rocker 1 to drive other components to work, realize the lifting or angle adjustment of nursing bed, rocker 1 outer wall fixed connection screw rod 3, screw rod 3 is fixed on rocker 1, it is convenient to transmit the rotary force of rocker 1, and then drive subsequent components to rotate, screw rod 3 outer wall is fixedly connected with two baffle 2, baffle 2 is used to limit subsequent anti -unthreaded assembly, screw rod 3 outer wall is provided with anti -unthreaded assembly, prevents the unthreaded phenomenon caused by the over rotation of nut 7 on screw rod 3.
[0028] With reference to Figures 1-3 Anti -unthreaded assembly includes shell 4, shell 4 is sleeved in screw rod 3 outer wall, shell 4 is as the protection structure of anti -unthreaded assembly, provides the installation environment for its internal component while avoiding the erosion of external environment, simultaneously, shell 4 is connected with nursing bed through connecting rod, shell 4 inside wall is fixedly connected with two base 5, base 5 is used to provide the location of nut 7 and buckle 9 in shell 4, and the clearance between the two base 5 is relatively compared with the length of nut 7, three clamping grooves 6 that pass through base 5 are set up in base 5 outer wall, and the cooperation between clamping groove 6 and buckle 9 realizes the effect that shell 4 moves with nut 7, nut 7 is rotatably connected in shell 4, and nut 7 is used to rotate and move on screw rod 3, realizes the effect of adjusting nursing bed, the sliding slot for the sliding of two buckle 9 is set up on the surface of nut 7, and buckle 9 realizes the transmission of force by clamping with clamping groove 6, and then drives shell 4 to move, and the spring 8 is fixedly connected between the two buckle 9, and the spring 8 is used to provide the thrust and reset force, so that buckle 9 can always clamp with clamping groove 6.
[0029] With reference to Figures 1-3 The diameter of baffle 2 is less than the diameter of base 5, and the thickness of buckle 9 is greater than the thickness of base 5. During the use of the device, shell 4 will move on screw rod 3. When it moves to the position of baffle 2, it will make buckle 9 and clamping groove 6 unclamped by the pushing action of baffle 2, so that shell 4 will not move with the rotation of nut 7, realizing the anti -unthreaded effect.
[0030] With reference to Figure 3, two buckles 9 are away from the side of the inclined surface 10, and the two inclined surfaces 10 are opposite, when the buckle 9 needs to be separated from the card slot 6, rotate the nut 7 to drive the buckle 9, due to the interaction of the inclined surface 10 and the edge of the card slot 6, the buckle 9 can be easily slipped out of the card slot 6 under the action of external force.
[0031] Referring to Figure 2 and Figure 3 , the buckle 9 and the card slot 6 are engaged, the shell 4, the nut 7 and the screw rod 3 are tightly connected as a whole, and the free rotation and axial displacement of the nut 7 on the screw rod 3 are limited.
[0032] Referring to Figures 1-3 , the nut 7 is threadedly connected to the outer wall of the screw rod 3, so that the nut 7 can be moved by rotating the screw rod 3, thereby realizing the adjustment effect of the nursing bed.
[0033] Referring to Figure 1 , the outer wall of the end of the rocker 1 away from the screw rod 3 is sleeved with an anti-skid sleeve 11, and the anti-skid sleeve 11 is used to increase the friction force of the hand of the user when holding the rocker 1.
[0034] Working principle: when the nursing bed needs to be adjusted, rotate the rocker 1, when the rocker 1 rotates, the screw rod 3 will rotate, and in the process of rotating the screw rod 3, the upper and lower two blocking pieces 2 fixedly connected to the outer wall of the screw rod 3 gradually approach the nut 7 in the anti-dropping assembly, until rotating to the both ends of the nut 7. At this time, the blocking piece 2 will contact the buckle 9 which is slidingly connected to the surface of the nut 7. Due to the external force caused by continuing to rotate the rocker 1, the buckle 9 is pressed under the contact of the card slot 6, and the inclined surface 10 structure at the end of the buckle 9 is matched with the multiple card slots 6 distributed on the outer wall of the two bases 5. In the process of approaching the end, the iron sheet, i.e. the blocking piece 2, presses the buckle 9, so that the buckle 9 continuously maintains the close connection state with the card slot 6, and in this process, due to the interaction between the components, a sound will be emitted, which serves as a reminder for the user that the handle has reached the end, prompting the user to stop rotating the handle.
[0035] With the continuation of the rotation, the inclined surface 10 structure at the end of the buckle 9 gradually connects with the multiple card slots 6 distributed on the outer wall of the two bases 5. In the process of approaching the end, the iron sheet, i.e. the blocking piece 2, presses the buckle 9, so that the buckle 9 continuously maintains the close connection state with the card slot 6, and in this process, due to the interaction between the components, a sound will be emitted, which serves as a reminder for the user that the handle has reached the end, prompting the user to stop rotating the handle.
[0036] Even if the user continues to rotate the rocker 1 due to misoperation or the like, since the buckle 9 and the clamping groove 6 have been firmly clamped, and the whole structure of the anti-disengagement assembly is limited, at this time the handle realizes idling, the rotating force cannot be transmitted to the nut 7 to cause disengagement damage between the nut 7 and the screw rod 3, effectively protecting the threaded connection structure. At the same time, after the two blocking pieces 2 contact with the nut 7, by virtue of the design of the structure and position thereof, the two blocking pieces 2 can prevent the rocker 1 from continuing to move downward, avoid the internal structure of the device from being disordered or damaged due to excessive displacement, and further guarantee the stability and reliability of the whole device in the use process, so as to ensure the safe and smooth operation of the bed adjusting operation.
[0037] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.
Claims
1. A new type of care bed crank anti-slip nut, comprising a rocker (1), characterized in that: The rocker (1) is fixedly connected with a screw rod (3), two baffle plates (2) are fixedly connected to the outer wall of the screw rod (3), and an anti-unraveling assembly is arranged on the outer wall of the screw rod (3); The anti-unraveling assembly comprises a shell (4), the shell (4) is sleeved on the outer wall of the screw rod (3), two bases (5) are fixedly connected to the inner wall of the shell (4), three clamping grooves (6) are formed in the outer wall of the base (5) and penetrate through the base (5), a nut (7) is rotatably connected to the inner part of the shell (4), and a sliding groove is formed in the surface of the nut (7) and used for sliding two buckles (9), and the spring (8) is fixedly connected between the two buckles (9).
2. A new type of care bed crank anti-slip nut according to claim 1, characterized in that: The diameter of the baffle plate (2) is smaller than the diameter of the base (5), and the thickness of the buckle (9) is greater than the thickness of the base (5).
3. A new type of care bed crank anti-slip nut according to claim 1, characterized in that: The side, away from each other, of the two buckles (9) is provided with an inclined surface (10), and the directions of the two inclined surfaces (10) are opposite.
4. A new type of care bed crank anti-slip nut according to claim 1, characterized in that: The buckle (9) and the clamping groove (6) are clamped.
5. A new type of care bed crank anti-slip nut according to claim 1, characterized in that: The nut (7) is threadedly connected to the outer wall of the screw rod (3).
6. A new type of care bed crank anti-slip nut according to claim 1, characterized in that: The outer wall of the end, away from the screw rod (3), of the rocker (1) is sleeved with an anti-skid sleeve (11).