CN221265646U - Bed seat back put flat mechanism - Google Patents
Bed seat back put flat mechanism Download PDFInfo
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- CN221265646U CN221265646U CN202322601252.7U CN202322601252U CN221265646U CN 221265646 U CN221265646 U CN 221265646U CN 202322601252 U CN202322601252 U CN 202322601252U CN 221265646 U CN221265646 U CN 221265646U
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model provides a bed seat backrest leveling mechanism, which is used for connecting a device to be leveled and a backrest, and comprises the following components: the rotating assembly is fixedly connected with the backrest and is rotationally connected with the to-be-placed flattening device; one end of the telescopic component is rotationally connected with the rotating component, and the other end of the telescopic component is rotationally connected with the flattening device to be placed; the connecting point of the telescopic component and the device to be leveled and the connecting point of the device to be leveled and the rotating component are fixed, the connecting point of the rotating component and the telescopic component is changed along with the telescopic length of the telescopic component and is used for sequentially connecting the connecting point of the rotating component and the telescopic component, the connecting point of the telescopic component and the device to be leveled and the connecting point of the device to be leveled and the rotating component, and the connected shape is triangle; the telescopic component is used for driving the rotating component to rotate when telescopic.
Description
Technical Field
The utility model relates to a backrest leveling device, in particular to a bed seat backrest leveling mechanism.
Background
Existing back rest reclining mechanisms for beds or seats typically use springs to achieve reclining action; however, in the use process of the spring leveling mechanism, due to the elasticity of the spring, larger rebound can be generated, so that the leveling process is unstable, the user experience is affected, and the leveling effect is affected.
Aiming at the problems, a novel technical scheme of the leveling mechanism is provided.
Disclosure of utility model
The utility model aims to provide a bed seat backrest leveling mechanism, which aims to solve the technical problem that the leveling process is unstable.
The utility model is realized by the following technical scheme:
a bed-chair backrest recline mechanism for connecting a device to be reclined to a backrest, comprising:
The rotating assembly is fixedly connected with the backrest and is rotationally connected with the to-be-placed flattening device;
one end of the telescopic component is rotationally connected with the rotating component, and the other end of the telescopic component is rotationally connected with the flattening device to be placed;
The connecting points of the telescopic component and the device to be leveled are used for connecting the connecting points of the rotating component and the device to be leveled, and the connecting lines of the two connecting points, the telescopic component and the rotating component form a triangle;
The connecting point of the telescopic component and the device to be leveled and the connecting point of the device to be leveled and the rotating component are fixed, the connecting point of the rotating component and the telescopic component is changed along with the telescopic length of the telescopic component and is used for sequentially connecting the connecting point of the rotating component and the telescopic component, the connecting point of the telescopic component and the device to be leveled and the connecting point of the device to be leveled and the rotating component, and the connected shape is triangle;
the telescopic component is used for driving the rotating component to rotate when telescopic.
The rotating assembly rotates around the connecting point of the rotating assembly and the to-be-placed flattening device under the driving of the telescopic assembly, and the telescopic assembly does linear motion due to the circular motion of the rotating assembly, so that the telescopic assembly is arranged into a rotatable structure, namely, two ends of the telescopic assembly are respectively connected with the to-be-placed flattening device and the rotating assembly in a rotating way; in order to solve the problem that the telescopic component and the rotating component are movably connected, the two movable components are connected to have instability, and the connection point of the rotating component and the telescopic component, the connection point of the telescopic component and the device to be leveled and the connection point of the device to be leveled and the rotating component are sequentially connected by utilizing the triangle stability principle; the connection length of the connection point of the telescopic component and the device to be leveled and the connection point of the device to be leveled and the rotating component is fixed, the connection length of the connection point of the rotating component and the telescopic component and the connection point of the telescopic component and the device to be leveled is changed along with the telescopic change of the telescopic component, and the connection length of the connection point of the rotating component and the telescopic component and the connection point of the device to be leveled and the rotating component is changed along with the connection length of the connection point of the rotating component and the telescopic component and the connection point of the telescopic component and the device to be leveled; when the telescopic length of the telescopic component is fixed (namely, the connecting point of the rotary component and the telescopic component and the connecting line length of the connecting point of the telescopic component and the device to be leveled are fixed), the connecting point of the rotary component and the telescopic component and the connecting line length of the connecting point of the device to be leveled and the rotary component are also fixed, so that the stability of the rotary component and the telescopic component is realized.
Further, the rotating assembly comprises a first plate, a second plate and a third plate which are sequentially connected, and the first plate, the second plate and the third plate are connected to form a 匚 -type structure;
The first plate and the third plate are used for being rotationally connected with the flattening device to be placed;
the second plate is rotatably connected with the telescopic component.
The first plate and the third plate are rotationally connected with the leveling device
The first plate and the third plate are used for being rotationally connected with the to-be-placed leveling device, when the to-be-placed leveling device needs to be adjusted, the first plate and the third plate synchronously rotate so as to drive the second plate to rotate, and therefore the rotating assembly is ensured not to deviate or incline when the to-be-placed leveling device is adjusted, and the accuracy and the safety of operation are improved;
The second plate is rotationally connected with the telescopic component, so that the rotary component rotates with the help of the telescopic component; for example, when the to-be-placed flat device needs to be placed flat or erected, the rotating assembly adjusts the rotating angle through the telescopic length of the telescopic assembly, and drives the included angle between the backrest and the to-be-placed flat device, so that quick and accurate operation is realized.
Further, the telescopic assembly comprises power equipment and a telescopic rod, one end of the telescopic rod is connected with the power equipment, and the other end of the telescopic rod is rotationally connected with the second plate.
Above-mentioned power equipment provides power for the telescopic link can realize stretching out and drawing back to this second plate application of force, and then drive first plate and second plate and revolute the subassembly and wait to put the tie point of flat device and rotate.
Further, the electric power device further comprises a limit switch, wherein a contact of the limit switch is arranged on a rotating path of the rotating assembly, and the limit switch is electrically connected with the power device.
The rotating assembly collides with the contact of the limit switch when rotating, and the power equipment is switched on and off by utilizing the action of the contact, so that the purpose of controlling the telescopic rod is achieved.
Further, the contact of the limit switch is arranged on the same horizontal plane of a connection point of the rotating assembly and the to-be-placed flat device.
When the backrest and the device to be put flat are positioned on the same horizontal plane, the rotating assembly collides with the contact of the limit switch, the telescopic rod stops stretching, and the function of putting flat is realized.
Further, the limit switch is used for being connected with a to-be-placed leveling device, and the contact of the limit switch is used for being in contact with the first plate or the third plate.
The contact area of the contact of the limit switch and the rotating component is increased, if the contact of the limit switch contacts with the second plate, the contact of the limit switch and the second plate can not collide when the second plate is carelessly deflected or shifted, so that the telescopic rod can not stop, and the backrest is excessively flattened (namely, the included angle between the backrest and the device to be flattened is larger than 180 degrees).
Compared with the prior art, the utility model has the following advantages and beneficial effects:
The rotating assembly rotates around the connecting point of the rotating assembly and the to-be-placed flattening device under the driving of the telescopic assembly, and the telescopic assembly does linear motion due to the circular motion of the rotating assembly, so that the telescopic assembly is arranged into a rotatable structure, namely, two ends of the telescopic assembly are respectively connected with the to-be-placed flattening device and the rotating assembly in a rotating way; in order to solve the problem that the telescopic component and the rotating component are movably connected, the two movable components are connected to have instability, and the connection point of the rotating component and the telescopic component, the connection point of the telescopic component and the device to be leveled and the connection point of the device to be leveled and the rotating component are sequentially connected by utilizing the triangle stability principle; the connection length of the connection point of the telescopic component and the device to be leveled and the connection point of the device to be leveled and the rotating component is fixed, the connection length of the connection point of the rotating component and the telescopic component and the connection point of the telescopic component and the device to be leveled is changed along with the telescopic change of the telescopic component, and the connection length of the connection point of the rotating component and the telescopic component and the connection point of the device to be leveled and the rotating component is changed along with the connection length of the connection point of the rotating component and the telescopic component and the connection point of the telescopic component and the device to be leveled; when the telescopic length of the telescopic component is fixed (namely, the connecting point of the rotary component and the telescopic component and the connecting line length of the connecting point of the telescopic component and the device to be leveled are fixed), the connecting point of the rotary component and the telescopic component and the connecting line length of the connecting point of the device to be leveled and the rotary component are also fixed, so that the stability of the rotary component and the telescopic component is realized.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a schematic view of the overall structure of a bed-rest reclining mechanism;
Fig. 2 is an enlarged view of a in fig. 1.
In the drawings, the reference numerals and corresponding part names:
10. A device to be leveled; 20. a backrest; 30. a rotating assembly; 31. a first plate member; 32. a second plate member; 33. a third plate member; 40. a telescoping assembly; 41. a telescopic rod; 42. a power plant; 50. and a limit switch.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.
Example 1
Referring to fig. 1 and 2, embodiment 1 provides a bed-seat back-rest reclining mechanism for connecting a reclining device 10 and a back 20, comprising:
The rotating assembly 30 is fixedly connected with the backrest 20 and is rotationally connected with the to-be-placed leveling device 10;
the telescopic assembly 40, one end of the telescopic assembly 40 is rotatably connected with the rotating assembly 30, and the other end of the telescopic assembly 40 is rotatably connected with the flattening device 10 to be placed;
the connection point of the telescopic component 40 and the device to be leveled 10 is used for connecting the connection point of the rotating component 30 and the device to be leveled 10, and the connection line of the two connection points, the telescopic component 40 and the rotating component 30 form a triangle;
The connection point of the telescopic assembly 40 and the to-be-placed flat device 10 and the connection point of the to-be-placed flat device 10 and the rotating assembly 30 are fixed, the connection point of the rotating assembly 30 and the telescopic assembly 40 changes along with the telescopic length of the telescopic assembly 40, and the connection point of the rotating assembly 30 and the telescopic assembly 40 and the connection point of the to-be-placed flat device 10 and the rotating assembly 30 are sequentially connected, and the connected triangle is triangular, and can be virtual or provided with an actual plate, and in this embodiment, for convenience of explanation, only a virtual structure is adopted for explanation (the broken line in the figure represents the triangle);
The telescopic assembly 40 is used for driving the rotating assembly 30 to rotate during telescopic operation.
The rotating assembly 30 is driven by the telescopic assembly 40 to rotate around the connection point between the rotating assembly 30 and the to-be-placed flat device 10, and the telescopic assembly 40 is in linear motion due to the circular motion of the rotating assembly 30, so that the telescopic assembly 40 is in a rotatable structure, namely, two ends of the telescopic assembly 40 are respectively in rotational connection with the to-be-placed flat device 10 and the rotating assembly 30; in order to solve the problem that the telescopic component 40 and the rotating component 30 are movably connected, the two movable components are connected to have instability, and the connection point of the rotating component 30 and the telescopic component 40, the connection point of the telescopic component 40 and the device 10 to be leveled and the connection point of the device 10 to be leveled and the rotating component 30 are sequentially connected by utilizing the triangle stability principle; the connection length of the telescopic assembly 40 and the connection point of the to-be-placed flat device 10 and the rotating assembly 30 is fixed, the connection length of the connection point of the rotating assembly 30 and the telescopic assembly 40 and the connection point of the telescopic assembly 40 and the to-be-placed flat device 10 is changed along with the telescopic change of the telescopic assembly 40, and the connection length of the connection point of the rotating assembly 30 and the telescopic assembly 40 and the connection point of the to-be-placed flat device 10 and the rotating assembly 30 is changed along with the connection length of the rotating assembly 30 and the telescopic assembly 40 and the connection point of the to-be-placed flat device 10; when the telescopic length of the telescopic component 40 is fixed (i.e. the length of the connection line between the connection point of the rotary component 30 and the telescopic component 40 and the connection point of the telescopic component 40 and the device to be placed 10 is fixed), the connection point of the rotary component 30 and the telescopic component 40 and the connection point of the device to be placed 10 and the rotary component 30 are also fixed, so that the stability of the rotary component 30 and the telescopic component 40 is realized.
In a specific embodiment, the rotating assembly 30 includes a first plate 31, a second plate 32 and a third plate 33 that are sequentially connected, where the first plate 31, the second plate 32 and the third plate 33 are connected to form a 匚 structure;
the first plate 31 and the third plate 33 are used for being rotatably connected with the leveling device 10;
the second plate 32 is rotatably connected to the telescopic assembly 40.
The first plate 31 and the third plate 33 are rotatably connected with the leveling device 10
The first plate 31 and the third plate 33 are used for being rotationally connected with the to-be-laid flat device 10, when the to-be-laid flat device 10 needs to be adjusted, the first plate 31 and the third plate 33 synchronously rotate, so as to drive the second plate 32 to rotate, and ensure that the rotating assembly 30 does not deviate or incline when the to-be-laid flat device 10 is adjusted, thereby improving the accuracy and the safety of operation;
The second plate 32 is rotatably connected with the telescopic assembly 40, so that the rotary assembly 30 performs a rotary operation with the aid of the telescopic assembly 40; for example, when the device 10 to be leveled needs to be leveled or erected, the rotating assembly 30 adjusts the rotating angle through the telescopic length of the telescopic assembly 40, and drives the included angle between the backrest 20 and the device 10 to be leveled, so as to realize quick and accurate operation.
In a specific embodiment, the telescopic assembly 40 includes a power unit 42 and a telescopic rod 41, one end of the telescopic rod 41 is connected to the power unit 42, and the other end of the telescopic rod 41 is rotatably connected to the second plate 32.
The power device 42 may use a motor, a hydraulic cylinder or an air cylinder, and the power device 42 provides power for the telescopic rod 41, so that the telescopic rod 41 can realize telescopic movement, so as to apply force to the second plate 32, and further drive the first plate 31 and the second plate 32 to rotate around the connection point of the rotating assembly 30 and the leveling device 10.
In a specific embodiment, the electric motor further includes a limit switch 50, the contact of the limit switch 50 is disposed on the rotating path of the rotating assembly 30, and the limit switch 50 is electrically connected to the power device 42.
The rotating assembly 30 collides with the contact of the limit switch 50 during rotation, and the power equipment 42 is turned on and off by utilizing the contact action, so as to achieve the purpose of controlling the telescopic rod 41.
In a specific embodiment, the contacts of the limit switch 50 are disposed on the same horizontal plane of the connection point of the rotating assembly 30 and the leveling device 10.
When the backrest 20 and the device 10 to be leveled are positioned on the same horizontal plane, the rotating assembly 30 collides with the contact of the limit switch 50, and the telescopic rod 41 stops telescoping, so that the leveling function is realized.
In a specific embodiment, the limit switch 50 is used to connect with the leveling device 10, and the contact of the limit switch 50 is used to contact with the first plate 31 or the third plate 33.
If the contact of the limit switch 50 contacts the second plate 32, the contact of the limit switch 50 may not collide with the second plate 32 when the second plate 32 is inadvertently deflected or displaced, so that the telescopic rod 41 may not stop, and the backrest 20 may be excessively flattened (i.e., the included angle between the backrest 20 and the device 10 to be flattened is greater than 180 degrees).
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (6)
1. A bed-chair backrest-rest mechanism for connecting a device (10) to be laid flat with a backrest (20), characterized by comprising:
The rotating assembly (30) is fixedly connected with the backrest (20) and is rotationally connected with the device (10) to be leveled;
The telescopic assembly (40), one end of the telescopic assembly (40) is rotationally connected with the rotating assembly (30), and the other end of the telescopic assembly (40) is rotationally connected with the device (10) to be leveled;
The connecting point of the telescopic component (40) and the device to be leveled (10) is used for connecting the connecting point of the rotating component (30) and the device to be leveled (10), and the connecting line of the two connecting points, the telescopic component (40) and the rotating component (30) form a triangle;
The telescopic component (40) is used for driving the rotating component (30) to rotate when telescopic.
2. The reclining bed-seat mechanism according to claim 1, wherein the rotating assembly (30) comprises a first plate (31), a second plate (32) and a third plate (33) connected in sequence, and the first plate (31), the second plate (32) and the third plate (33) are connected to form a 匚 -type structure;
the first plate (31) and the third plate (33) are used for being rotationally connected with the device (10) to be leveled;
The second plate (32) is rotatably connected with the telescopic assembly (40).
3. A bed-rest leveling mechanism according to claim 2, characterized in that the telescopic assembly (40) comprises a power device (42) and a telescopic rod (41), one end of the telescopic rod (41) is connected with the power device (42), and the other end of the telescopic rod (41) is rotatably connected with the second plate (32).
4. The reclining mechanism of a bed-chair according to claim 2, further comprising a limit switch (50), wherein contacts of the limit switch (50) are disposed in a rotational path of the rotational assembly (30), and wherein the limit switch (50) is electrically connected to the power unit (42).
5. The reclining mechanism of a bed-chair according to claim 4, wherein the contacts of the limit switch (50) are arranged on the same horizontal plane as the connection point of the rotating assembly (30) and the device (10) to be reclining.
6. A bed-rest reclining mechanism according to claim 5, wherein the limit switch (50) is adapted to be connected to the reclining device (10), and wherein the contacts of the limit switch (50) are adapted to contact the first plate (31) or the third plate (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322601252.7U CN221265646U (en) | 2023-09-25 | 2023-09-25 | Bed seat back put flat mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322601252.7U CN221265646U (en) | 2023-09-25 | 2023-09-25 | Bed seat back put flat mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221265646U true CN221265646U (en) | 2024-07-05 |
Family
ID=91710237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322601252.7U Active CN221265646U (en) | 2023-09-25 | 2023-09-25 | Bed seat back put flat mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221265646U (en) |
-
2023
- 2023-09-25 CN CN202322601252.7U patent/CN221265646U/en active Active
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