Arm supporting structure
By designing an arm support structure that includes a linkage mechanism, an angle limiter and an adjustment mechanism, the problem that traditional auxiliary treatment bed arm adjustment cannot be infinitely adjusted is solved, achieving a high degree of free change and higher versatility.
Patent Information
- Application Number
- CN202420457146.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-03-11
AI Technical Summary
The arm adjustment of traditional auxiliary treatment beds has the problem that the inability to perform Wuji adjustment, which is difficult to adapt to every patient and has poor versatility.
An arm support structure is designed, including a linkage mechanism, an angle limiter, an adjustment mechanism and a support frame. The height can be freely changed through the self-locking mechanism of the angle limiter.
Achieved a high degree of free changes in a certain range, improved the generality of the equipment, and simplified the structure and saved production costs.
Smart Images
Figure CN222383620U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to an arm supporting structure. Background Art
[0002] The medical manual assisted treatment bed is a device for patients to lie down. During medical treatment and maintenance, the assisted treatment bed with adjustable position is widely used in hospitals, traditional Chinese medicine hospitals, beauty salons and other places to assist doctors in manual operations.
[0003] In the process of adjusting the arm of the auxiliary treatment bed, it mainly involves the rotation type such as rising and falling and rotating around the vertical direction to meet the patient's diagnosis and treatment needs. For the up and down lifting process of traditional auxiliary treatment beds, most of them are set in stages, and different heights are presented at different stages. Users can only adjust according to the existing stages, and cannot perform stepless adjustment. It is difficult to adapt to every patient and has the problem of poor versatility. Utility Model Content
[0004] In order to solve the defects of the prior art, the present invention provides an arm support structure, and its technical solution is as follows:
[0005] An arm support structure includes a connecting rod mechanism, an angle limiter, an adjustment mechanism and a support frame, the connecting rod mechanism is rotatably installed on the support frame, the connecting rod mechanism extends a limit axis, the angle limiter is rotatably installed on the support frame, the angle limiter is fixedly connected to the adjustment mechanism, the angle limiter has an arc-shaped contour, the projection of the center of gravity of the angle limiter on the horizontal plane is located on the side of the projection of the adjustment mechanism on the horizontal plane that is biased toward the limit axis, the limit axis contacts the outer contour of the angle limiter, and under the influence of gravity, the limit axis locks the angle limiter.
[0006] Furthermore, the angle limiter has an elliptical contour, and the limit axis is tangent to the angle limiter.
[0007] Furthermore, the arm support structure also includes a fixed seat and a rotating kit, the rotating kit is installed on the fixed seat, and the connecting rod mechanism is rotatably installed on the rotating kit.
[0008] Furthermore, the fixing seat includes a first fixing block, the rotating kit includes a sleeve and a second fixing block, the second fixing block is fixedly connected to the sleeve, and the first fixing block and the second fixing block cooperate to fix the sleeve to the fixing seat.
[0009] Furthermore, the connecting rod mechanism includes a first connecting rod and a second connecting rod, the second connecting rod is a double-plate connecting rod, and the projection of the second connecting rod on the vertical plane is parallel to and located below the projection of the first connecting rod on the vertical plane.
[0010] Furthermore, the angle limiting member is provided with an escape space, and the escape space allows the second connecting rod to be rotatably mounted on a support shaft of the support frame.
[0011] Further, the support frame includes a first support plate, a second support plate, a first rotating shaft and an indexing pin, the first support plate is rotatably installed on the second support plate via the first rotating shaft, the first support plate is provided with a first limiting hole, the number of the first limiting holes is multiple, the second support plate is provided with a second limiting hole, the number of the second limiting hole is one, the multiple first limiting holes and the second limiting holes are all located on a circle with the first rotating shaft as the center, and when the second limiting hole corresponds to one of the first limiting holes, the indexing pin fixes the first support plate and the second support plate.
[0012] Furthermore, the support member also includes a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate are vertically arranged, and the first fixing plate and the second fixing plate are fixed to the second support plate.
[0013] Furthermore, the connecting rod mechanism is located between the first fixing plate and the second fixing plate.
[0014] Furthermore, the adjustment mechanism includes a handle and an adjustment shaft, the handle is fixedly connected to the adjustment shaft, and the angle limiter is fixedly connected to the adjustment shaft.
[0015] The advantage of the utility model lies in that, through the structure of the angle limiter itself, the angle limiter can rely on its own weight to form self-locking with the limit shaft when rotating, thereby achieving free change of height within a certain range. It has higher versatility while also simplifying some structures and saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional diagram of the arm support structure of the utility model;
[0017] Figure 2 for Figure 1 Another stereoscopic view of the arm support structure;
[0018] Figure 3 for Figure 1 Structural exploded view of the arm support structure;
[0019] Figure 4 for Figure 1A first partial structural diagram of an arm support structure;
[0020] Figure 5 for Figure 1 A second partial structural diagram of the arm support structure;
[0021] Figure 6 for Figure 1 Structural diagram of the support frame of the arm support structure.
[0022] In the figure:
[0023] 1. Fixed frame; 11. First positioning block; 2. Rotating kit; 21. Sleeve; 22. Second positioning block; 3. Connecting rod mechanism; 31. First connecting rod; 32. Second connecting rod; 321. Limiting shaft; 4. Angle limiting member; 41. Avoidance space; 5. Support frame; 51. First supporting plate; 511. First limiting hole; 52. Second supporting plate; 521. Second limiting hole; 53. First fixed plate; 54. Second fixed plate; 55. First rotating shaft; 56. Indexing pin; 6. Adjusting mechanism; 61. Handle; 62. Adjusting rotating shaft; 7. Buffer bed. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] The following is an example and combined with the attached Figure 1-6 The utility model is described in further detail.
[0026] An arm support structure comprises a fixing frame 1, a rotating kit 2, a connecting rod mechanism 3, an angle limiter 4, a supporting frame 5, an adjusting mechanism 6 and a buffer bed 7.
[0027] The fixing frame 1 comprises a first positioning block 11 .
[0028] The rotating kit 2 includes a sleeve 21 and a second positioning block 22. The second positioning block 22 is fixedly connected to the sleeve 21, and the first positioning block 11 and the second positioning block 22 cooperate to achieve positioning.
[0029] The connecting rod mechanism 3 includes a first connecting rod 31 and a second connecting rod 32. Specifically, in this embodiment, the second connecting rod 32 is a double-plate structure, and a limit axis 321 extends from one side of the second connecting rod 32. Specifically, in this embodiment, the projection of the second connecting rod 32 on the vertical plane is parallel to and below the projection of the first connecting rod 31 on the vertical plane.
[0030] The angle limiter 4 includes an escape space 41 for escaping the support shaft that rotatably connects the second connecting rod 32 and the support frame 5. Specifically, in this embodiment, the outer contour of the angle limiter 4 is an ellipse.
[0031] The support frame 5 includes a first support plate 51, a second support plate 52, a first fixing plate 53, a second fixing plate 54, a first rotating shaft 55, and an indexing pin 56. The first support plate 51 is rotatably mounted on the second support plate 52 via the first rotating shaft 55, the first fixing plate 53 and the second fixing plate 54 are vertically arranged, and the first fixing plate 53 and the second fixing plate 54 are fixed to the second support plate 52.
[0032] The first support plate 51 is provided with a plurality of first limiting holes 511, and the second support plate 52 is provided with a second limiting hole 521. Specifically, in this embodiment, the number of the first limiting holes 511 is five, and the number of the second limiting hole 521 is one. The plurality of first limiting holes 511 and the second limiting hole 521 are all on a circle with the first rotating shaft 55 as the center. The first support plate 51 is rotated, and when the second limiting hole 521 corresponds to one of the first limiting holes 511, the indexing pin 56 is inserted into the first limiting hole 511 through the second limiting hole 521 to fix the first support plate 51 and the second support plate 52 together.
[0033] The adjusting mechanism 6 includes a handle 61 and an adjusting shaft 62 , and the handle 61 and the adjusting shaft 62 are fixedly connected.
[0034] Installation process of an arm support structure of the utility model:
[0035] The sleeve 21 together with the second positioning block 22 is rotatably mounted on the fixing frame 1 , and the first positioning block 11 is mounted on the fixing frame 1 . The first positioning block 11 and the second positioning block 22 cooperate to fix the sleeve 21 on the fixing frame 1 .
[0036] The support shaft is arranged perpendicular to the first fixed plate 53 and the second fixed plate 54, one end of the first connecting rod 31 is rotatably installed on the sleeve 21 through the support shaft, and the other end is rotatably installed on the support frame 5 through the support shaft; one end of the second connecting rod 32 is rotatably installed on the sleeve 21 through the support shaft, and the other end is rotatably installed on the support frame 5 through the support shaft, the second connecting rod 32 extends a limiting axis 321, the first connecting rod 31 and the second connecting rod 32 are both located between the first fixed plate 53 and the second fixed plate 54, and the limiting axis 321 is parallel to the support shaft. The angle limit member 4 is fixedly connected to the adjusting shaft 62, and the adjusting shaft 62 is rotatably installed on the first fixed plate 53 and the second fixed plate 54 and is parallel to the limiting shaft 321. The avoidance space 41 avoids the supporting shaft that rotatably connects the second connecting rod 32 and the supporting frame 5. The projection of the center of gravity of the angle limit member 4 on the horizontal plane is located on the side where the projection of the adjusting mechanism 6 on the horizontal plane is biased toward the limiting shaft 321. The limiting shaft 321 is in contact with the outer contour of the angle limit member 4, and the limiting shaft 321 is tangent to the angle limit member 4. The buffer bed 7 is installed on the first supporting plate 51.
[0037] The use process of an arm support structure:
[0038] Overall rotation: When the treatment bed needs to be rotated as a whole, the first positioning block 11 is removed, and the buffer bed 7 is pushed. The sleeve 21 rotates together with the connecting rod mechanism 3, so that the buffer bed 7 rotates around the fixed frame 1; when the overall rotation is not required, the buffer bed 7 is pushed to reset it, and the first positioning block 11 is installed and cooperated with the second positioning block 22 to fix the buffer bed 7.
[0039] Partial rotation: when only the buffer bed 7 needs to be rotated, remove the indexing pin 56 and rotate the first support plate 51. When it is rotated to the required angle, one of the first limit holes 511 and the second limit hole 521 corresponds to each other. Install the indexing pin 56 to fix the first support plate 51 and the second support plate 52 in connection, and the angle adjustment is completed.
[0040] Rise and fall: Figure 4 For example, since the projection of the center of gravity of the angle limit member 4 on the horizontal plane is located on the side where the projection of the adjusting mechanism 6 on the horizontal plane is biased toward the limit shaft 321, the angle limit member 4 tends to rotate clockwise under the influence of its own weight, and the cushion bed 7 naturally falls due to gravity, causing the connecting rod mechanism 3 to drive the limit shaft 321 to descend. When the limit shaft 321 hits the outer contour of the angle limit member 4 and the limit shaft 321 and the angle limit member 4 are tangent, since both have a downward tendency, the limit shaft 321 and the angle limit member 4 press against each other, so that the angle limit member 4 and the limit shaft 321 form a self-locking structure to achieve height fixation.
[0041] When the buffer bed 7 needs to be lowered, the angle limiter 4 is rotated counterclockwise to unlock the angle limiter 4, and the limit shaft 321 moves along the surface of the angle limiter 4 to lower the height of the buffer bed 7. The counterclockwise rotation of the angle limiter 4 is stopped and the angle limiter 4 is locked again to keep the height of the buffer bed 7 fixed. When the buffer bed 7 needs to be raised, the buffer bed 7 is manually raised, the angle limiter 4 is rotated clockwise to a certain angle, and then the buffer bed 7 is lowered to lock the angle limiter 4 to complete the height raising.
[0042] The benefit of the utility model lies in that, through the structure of an angle limiter 4, the angle limiter 4 relies on its own weight to form a self-locking with the limit shaft 321, and the angle limiter 4 is rotated to achieve free change of height within a certain range. It has higher versatility while also simplifying some structures and saving production costs.
[0043] The above embodiment only expresses one implementation method of the utility model, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, several modifications and improvements can be made, which are equivalent modifications and improvements made to the above embodiment based on the essential technology of the utility model, and all of them belong to the protection scope of the utility model.
Claims
1. An arm support structure, comprising a connecting rod mechanism, characterized in that: It also includes an angle limiter, an adjustment mechanism and a support frame, the connecting rod mechanism is rotatably mounted on the support frame, the connecting rod mechanism extends a limit shaft, the angle limiter is rotatably mounted on the support frame, the angle limiter is fixedly connected to the adjustment mechanism, the angle limiter has an arc-shaped contour, the projection of the center of gravity of the angle limiter on the horizontal plane is located on the side where the projection of the adjustment mechanism on the horizontal plane is biased toward the limit shaft, the limit shaft contacts the outer contour of the angle limiter, and the limit shaft locks the angle limiter under the influence of gravity; The connecting rod mechanism comprises a first connecting rod and a second connecting rod, wherein the second connecting rod is a double-plate connecting rod, and the projection of the second connecting rod on the vertical plane is parallel to and located below the projection of the first connecting rod on the vertical plane; The support frame includes a first support plate, a second support plate, a first rotating shaft and an indexing pin. The first support plate is rotatably installed on the second support plate via the first rotating shaft. The first support plate is provided with a first limiting hole, and the number of the first limiting holes is multiple. The second support plate is provided with a second limiting hole, and the number of the second limiting hole is one. The multiple first limiting holes and the second limiting holes are all located on a circle with the first rotating shaft as the center. When the second limiting hole corresponds to one of the first limiting holes, the indexing pin fixes the first support plate and the second support plate.
2. An arm support structure according to claim 1, characterized in that: The angle limiting member has an elliptical contour, and the limiting axis is tangent to the angle limiting member.
3. An arm support structure according to claim 1, characterized in that: The arm support structure also includes a fixed seat and a rotating kit, the rotating kit is installed on the fixed seat, and the connecting rod mechanism is rotatably installed on the rotating kit.
4. An arm support structure according to claim 3, characterized in that: The fixing seat comprises a first fixing block, the rotating kit comprises a sleeve and a second fixing block, the second fixing block is fixedly connected to the sleeve, and the first fixing block and the second fixing block cooperate to fix the sleeve to the fixing seat.
5. The arm support structure according to claim 1, characterized in that: The angle limiting member is provided with an escape space, and the escape space allows the second connecting rod to be rotatably mounted on the support shaft of the support frame.
6. The arm support structure according to claim 1, characterized in that: The support frame further includes a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate are vertically arranged, and the first fixing plate and the second fixing plate are fixed to the second support plate.
7. An arm support structure according to claim 6, characterized in that: The link mechanism is located between the first fixing plate and the second fixing plate.
8. The arm support structure according to claim 1, characterized in that: The adjustment mechanism comprises a handle and an adjustment shaft, the handle is fixedly connected to the adjustment shaft, and the angle limiter is fixedly connected to the adjustment shaft.