Front-and-back swing driving mechanism for movable seat
By using the limiting component and support component with arc-shaped track movement in the seat and the driving component design, the problem of poor swing stability of existing seats is solved, a large swing range and safety is achieved, and the motor power is reduced Demand reduces overall costs.
Patent Information
- Application Number
- CN202420765670.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2024-12-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When existing somatosensory seats realize human-computer interaction, the flexibility of swing adjustment increases, and the overall cost is increased when the existing somatosensory seats increase their flexibility in swing adjustment, and the demand for driving high-power motors increases.
A front and rear swing driving mechanism of a movable seat is designed, and the limiting component and support component that moves arc-shaped trajectory together with the drive component is used to drive the drive motor and the variable speed gear set to achieve stable swing of the swing base and reduce the power demand of the drive motor.
Improves the seat swing stability and adjustment range, enhances the safety of use, and effectively reduces the overall cost.
Smart Images
Figure CN222171690U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of movable seats, and in particular relates to a front-rear swinging driving mechanism of a movable seat. Background Art
[0002] In order to achieve human-machine interaction, existing somatosensory seats usually use pneumatic or hydraulic methods to achieve seat deflection, and often use mechanical arms to achieve seat swing in order to further increase the degree of freedom of the seat. Most of the above seat adjustment methods require high-power motors to provide driving torque. Due to the increase in its degree of freedom, in order to ensure the stability of the seat movement, it is also necessary to add a fixed frame to strengthen the seat, but this also limits the seat swing adjustment range.
[0003] In order to solve the deficiencies of the prior art, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a swingable seat and control method [201720964916.8], which adds a rocking assembly between the seat cushion and the fixed base, wherein the rocking assembly includes a rocking plate group and a rocking wheel group; the top of the rocking plate group is fixedly set on the bottom side of the seat cushion, the bottom of the rocking plate group is swingably connected to the fixed base, the fixed base is provided with a slide rail, the rocking wheel group is distributed on both sides of the rocking plate group and is arranged on the slide rail, the rocking wheel group is in contact with the side wall support of the rocking plate group, wherein the rocking wheel group is provided with a drive motor group, and the drive motor group is connected to the control box.
[0004] The above solution solves the problem of seat swing adjustment flexibility to a certain extent, but the solution still has many shortcomings, such as poor swing stability. Summary of the invention
[0005] The utility model aims to solve the above problems and provides a front-back swing driving mechanism for a movable seat with reasonable design and good swing stability.
[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a movable seat forward and backward swinging drive mechanism, including a fixed base, a swing base movably installed on the upper end of the fixed base, a limit assembly guiding the swing base to move along an arc trajectory and a support assembly providing a supporting torque for the swing base are arranged between the fixed base and the swing base, and a driving assembly driving the swing base to move is installed between the fixed base and the swing base.
[0007] In the above-mentioned forward and backward swinging driving mechanism of a movable seat, the fixed base includes an outer shell and an inner shell, and the upper ends of the outer shell and the inner shell are respectively provided with openings for the swinging base to be placed therein.
[0008] In the above-mentioned forward and backward swinging driving mechanism of a movable seat, the bottom of the swinging base is arc-shaped, and the two sides of the outer shell of the fixed base respectively have convex edges extending upward to the outside of the swinging base, and the top of the inner seat body of the fixed base is provided with a concave edge in the shape of an arc and the curvature is consistent with the curvature of the bottom of the swinging base.
[0009] In the above-mentioned forward and backward swinging driving mechanism of a movable seat, the support assembly includes support bars arranged on both sides of the bottom of the swing base, and support rollers that are tightly pressed against the support bars are rotatably installed between the outer shell and the inner seat.
[0010] In the above-mentioned forward and backward swinging driving mechanism of a movable seat, the limiting assembly includes a limiting rib plate symmetrically fixed on the middle part of the bottom of the swing base, the limiting rib plate has an L-shaped cross-section and has a first limiting plate vertically arranged and connected to the swing base, the lower end of the first limiting plate is connected to a second limiting plate perpendicular to it, the upper end of the inner seat body is equipped with a first limiting roller rollingly engaged with the upper end of the second limiting plate and a second limiting roller rollingly engaged with the side of the second limiting plate.
[0011] In the above-mentioned forward and backward swinging driving mechanism of a movable seat, the driving component includes a driving frame fixed in the inner seat body, and a driving motor is installed on the driving frame. The driving motor is meshed and driven with a gear rack assembly arranged between a fixed base and a swing base through a speed change gear set.
[0012] In the above-mentioned movable seat forward and backward swinging drive mechanism, the driving frame includes a main seat body connected to the bottom of the fixed base and a sub-seat body connected to the main seat body, the driving motor is installed on the main seat body, and the speed change gear set is installed between the main seat body and the sub-seat body.
[0013] In the above-mentioned forward and backward swinging driving mechanism of a movable seat, the gear rack assembly includes a driving rack arranged at the bottom of the swing base, and the speed change gear set is drivingly connected with a driving gear meshing with the driving rack.
[0014] In the above-mentioned forward and backward swinging driving mechanism of a movable seat, the junction between the swing base and the outer shell is kept isolated.
[0015] In the above-mentioned forward and backward swinging driving mechanism of a movable seat, a circuit board connected to the driving assembly is built into the fixed base, and the circuit board is arranged in the inner seat body and is isolated from the outer shell.
[0016] Compared with the existing technology, the advantages of the utility model are: the driving component drives the swing base to swing back and forth relative to the fixed base, and maintains its stability during the swinging process under the action of the limiting component and the supporting component, so that the swing base has a larger swinging range; the limiting component limits the swing base in multiple directions, which can prevent the swing base from separating from the fixed base during the swinging process, thereby improving the safety of the seat; the driving component adopts a gear rack assembly and a speed gear set for transmission, which can effectively reduce the power required by the driving motor and reduce the overall cost of the seat. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of the utility model;
[0018] Figure 2 It is a structural schematic diagram of the fixed base of the utility model;
[0019] Figure 3 It is a structural schematic diagram of the fixed base of the utility model from another perspective;
[0020] Figure 4 It is a partial cross-sectional view of the utility model;
[0021] In the figure, there are a fixed base 1, an outer shell 11, an inner base 12, an opening 13, a swing base 2, a convex edge 21, a concave edge 22, a limit assembly 3, a limit rib 31, a first limit plate 32, a second limit plate 33, a first limit roller 34, a second limit roller 35, a support assembly 4, a support bar 41, a support roller 42, a drive assembly 5, a drive frame 51, a drive motor 52, a speed change gear set 53, a main seat body 54, a sub-seat body 55, a drive rack 56, and a drive gear 57. DETAILED DESCRIPTION
[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0023] like Figure 1-4 As shown, a forward and backward swinging driving mechanism of a movable seat comprises a fixed base 1 installed at the lower end of the seat, and a swing base 2 is movably installed on the upper end of the fixed base 1, and the swing base 2 can swing forward and backward relative to the fixed base 1. A limit assembly 3 for guiding the swing base 2 to move along an arc track and a support assembly 4 for providing a supporting torque for the swing base 2 are arranged between the fixed base 1 and the swing base 2. When the swing base 2 is assembled, the limit assembly 3 cooperates with the support assembly 4 to achieve relative positioning in the vertical and horizontal directions, and only the freedom of movement of swinging on the vertical plane is retained. A driving assembly 5 for driving the swing base 2 to move is installed between the fixed base 1 and the swing base 2. The driving assembly 5 provides a swing driving torque for the swing base 2 on the one hand, and realizes the relative locking of the swing base 2 and the fixed base 1 in the stopped state on the other hand.
[0024] Specifically, the fixed base 1 is an inner and outer double-layer structure, including an outer shell 11 and an inner shell 12. The upper ends of the outer shell 11 and the inner shell 12 are respectively provided with openings 13 for inserting the swing base 2. The driving assembly 5 is arranged in the inner shell 12, and a corresponding isolation cavity is left between the outer shell 11 and the inner shell 12.
[0025] In depth, the bottom of the swing base 2 is arc-shaped and the curvature is consistent with its swing trajectory. Both sides of the outer shell 11 of the fixed base 1 have convex edges 21 extending upward to the outside of the swing base 2 to achieve enclosure. The top of the inner base body 12 of the fixed base 1 is provided with a concave edge 22 in the shape of an arc and the curvature is consistent with the curvature of the bottom of the swing base 2. The concave edge 22 is isolated from the bottom of the swing base 2 and does not affect the normal swing of the swing base 2.
[0026] Furthermore, the support assembly 4 applies an upward support moment to the swing base 2, including support bars 41 arranged on both sides of the bottom of the swing base 2, and support rollers 42 that fit and press against the support bars 41 are rotatably installed between the outer shell 11 and the inner base 12. The support bars 41 reduce the rolling friction between the support rollers 42 and the bottom of the swing base 2, and the length of the support bars 41 is consistent with the swing range of the swing base 2.
[0027] Furthermore, the limiting assembly 3 includes a limiting rib 31 symmetrically fixed at the middle of the bottom of the swing base 2, and the limiting rib 31 extends downward to the top of the inner seat body 12. The limiting rib 31 has an L-shaped cross section and has a first limiting plate 32 vertically arranged and connected to the swing base 2, and the lower end of the first limiting plate 32 is connected to a second limiting plate 33 perpendicular to it, and the upper end of the inner seat body 12 is installed with a first limiting roller 34 rollingly fitted with the upper end of the second limiting plate 33 and a second limiting roller 35 rollingly fitted with the side of the second limiting plate 33. The second limiting roller 35 and the first limiting roller 34 are pressed against the limiting rib 31 to prevent them from being offset and misaligned when the swing base 2 swings. Each first limiting roller 34 and the second limiting roller 35 are arranged symmetrically relative to the swing base 2 in the horizontal and vertical directions.
[0028] In addition, unlike the existing sprocket transmission structure, the driving assembly 5 in the present application includes a driving frame 51 fixed in the inner seat body 12, and a driving motor 52 is installed on the driving frame 51. The driving motor 52 is meshed with a gear rack assembly arranged between the fixed base 1 and the swing base 2 through a speed change gear set 53. The driving frame 51 and the driving motor 52 are relatively fixed, and the driving motor 52 outputs torque and is speed-changed by the speed change gear set 53.
[0029] At the same time, the driving frame 51 includes a main seat body 54 connected to the bottom of the fixed base 1 and a sub-seat body 55 connected to the main seat body 54. The main seat body 54 and the sub-seat body 55 are combined into a rectangular cylindrical structure and are locked and fixed by screws. The driving motor 52 is installed on the main seat body 54, and the speed gear set 53 is installed in the cavity between the main seat body 54 and the sub-seat body 55. The sub-seat body 55 can be disassembled independently and the speed gear set 53 and the driving motor 52 can be maintained separately.
[0030] It can be seen that the gear rack assembly includes a driving rack 56 arranged at the bottom of the swing base 2, and the driving rack 56 extends along an arc and is located between the limiting ribs 31. The speed change gear set 53 is drivingly connected to a driving gear 57 meshing with the driving rack 56. As the driving gear 57 rotates forward and reverse, the driving rack 56 drives the swing base 2 to swing forward and backward.
[0031] Obviously, the junction between the swing base 2 and the outer shell 11 is kept isolated without affecting the normal movement of the swing base 2. A corresponding sensor structure can be set between them to monitor the movement state of the swing base 2 in real time, and stop in time if an abnormality occurs.
[0032] Preferably, the fixed base 1 has a built-in circuit board connected to the driving assembly 5, and the circuit board is arranged in the inner base body 12 and is isolated from the outer body 11. The fixed base 1 with an inner and outer double-layer structure has a good protective effect on the inner base body 12.
[0033] To sum up, the principle of this embodiment is that the swing base 2 movably installed on the upper end of the fixed base 1 swings along an arc trajectory under the action of the driving component 5, and a limiting component 3 is arranged between the fixed base 1 and the swing base 2 to limit the swing base 2 to prevent it from separating relative to the fixed base 1, and the supporting component 4 provides a supporting torque for the swing base 2 without affecting its normal movement, thereby ensuring the stability of the swing base 2 during the adjustment process.
[0034] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
[0035] Although the present invention uses more terms such as fixed base 1, outer shell 11, inner base 12, opening 13, swing base 2, convex edge 21, concave edge 22, limit assembly 3, limit rib 31, first limit plate 32, second limit plate 33, first limit roller 34, second limit roller 35, support assembly 4, support bar 41, support roller 42, drive assembly 5, drive frame 51, drive motor 52, speed change gear set 53, main base 54, auxiliary base 55, drive rack 56, drive gear 57, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.
Claims
1. A movable seat forward and backward swing driving mechanism, comprising a fixed base (1), a swing base (2) movably mounted on the upper end of the fixed base (1), characterized in that: A limit assembly (3) for guiding the swing base (2) to move along an arc track and a support assembly (4) for providing a supporting torque for the swing base (2) are arranged between the fixed base (1) and the swing base (2), and a driving assembly (5) for driving the swing base (2) to move is installed between the fixed base (1) and the swing base (2).
2. The front-rear swing driving mechanism of a movable seat according to claim 1, characterized in that: The fixed base (1) comprises an outer shell (11) and an inner shell (12), and the upper ends of the outer shell (11) and the inner shell (12) are respectively provided with openings (13) for the swing base (2) to be placed therein.
3. The front-rear swing driving mechanism of a movable seat according to claim 2, characterized in that: The bottom of the swing base (2) is in the shape of an arc, and both sides of the outer shell (11) of the fixed base (1) are provided with convex edges (21) extending upward to the outside of the swing base (2), and the top of the inner base (12) of the fixed base (1) is provided with a concave edge (22) in the shape of an arc and having an arc that is consistent with the arc of the bottom of the swing base (2).
4. The front-rear swing driving mechanism of a movable seat according to claim 3, characterized in that: The support assembly (4) comprises support bars (41) arranged on both sides of the bottom of the swing base (2), and support rollers (42) are rotatably installed between the outer shell (11) and the inner base (12) and are tightly fitted with the support bars (41).
5. The front-rear swing driving mechanism of a movable seat according to claim 3, characterized in that: The limiting assembly (3) comprises a limiting rib plate (31) symmetrically fixed to the middle part of the bottom of the swing base (2); the limiting rib plate (31) has an L-shaped cross section and comprises a first limiting plate (32) vertically arranged and connected to the swing base (2); the lower end of the first limiting plate (32) is connected to a second limiting plate (33) perpendicular thereto; the upper end of the inner base body (12) is provided with a first limiting roller (34) rollingly engaged with the upper end of the second limiting plate (33) and a second limiting roller (35) rollingly engaged with the side of the second limiting plate (33).
6. The front-rear swing driving mechanism of a movable seat according to claim 3, characterized in that: The driving assembly (5) comprises a driving frame (51) fixed in the inner base (12), a driving motor (52) being mounted on the driving frame (51), and the driving motor (52) is meshed with a gear rack assembly arranged between the fixed base (1) and the swing base (2) through a speed change gear set (53).
7. The front-rear swing driving mechanism of a movable seat according to claim 6, characterized in that: The driving frame (51) includes a main seat body (54) connected to the bottom of the fixed base (1) and a sub-seat body (55) connected to the main seat body (54), the driving motor (52) is installed on the main seat body (54), and the speed change gear set (53) is installed between the main seat body (54) and the sub-seat body (55).
8. The front-rear swing driving mechanism of a movable seat according to claim 7, characterized in that: The gear rack assembly comprises a driving rack (56) arranged at the bottom of the swing base (2), and the speed change gear set (53) is drivingly connected to a driving gear (57) meshing with the driving rack (56).
9. The front-rear swing driving mechanism of a movable seat according to claim 2, characterized in that: The junction between the swing base (2) and the outer shell (11) is kept isolated.
10. The front-rear swing driving mechanism of a movable seat according to claim 2, characterized in that: The fixed base (1) has a built-in circuit board connected to the drive assembly (5); the circuit board is arranged in the inner base body (12) and is isolated from the outer base body (11).