Electric seat
The electric seat achieves synchronized adjustment of backrest and leg rest using a single power source, enhancing user comfort and reducing installation space through integrated slide rails and sliding assemblies.
Patent Information
- Application Number
- CN202420211470.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-29
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-29
AI Technical Summary
Existing electric seats require multiple power sources for adjusting the backrest and leg rest, leading to inconsistent adjustments and installation difficulties in narrow spaces, and are inconvenient to install and use in limited and confined spaces.
An electric seat design that allows simultaneous adjustment of the backrest and leg rest using a single power source, with integrated slide rails and sliding assemblies for synchronized movement, reducing installation space requirements.
Enables seamless, noise-free, and stable adjustment of the seat posture from sitting to lying positions, providing maximum comfort and flexibility for different users while minimizing installation space.
Smart Images
Figure CN222149483U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of adjustable seats, in particular to an electric seat. Background Art
[0002] There are many types of electric seats in the prior art, but most of them use the seat as a fixed point to adjust the backrest and leg rest, which requires two power sources. The adjustment is inconsistent and there is a sense of disconnection. During the installation process, a certain installation distance needs to be left on the backrest side to avoid the backrest reclining angle at the beginning. It is not convenient to install and use in narrow and limited spaces.
[0003] It can be seen that providing an electric seat with strong linkage and suitable for use in a small space has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content
[0004] In order to realize the linkage adjustment of the sitting and lying angles of the electric seat, the backrest and the leg rest can be adjusted at the same time under the drive of the same power source, so as to adapt to the sitting posture requirements of different passengers to the greatest extent. At the same time, the backrest panel will not reduce the distance with the rear fixed surface during the adjustment process, thereby reducing the installation space. The utility model provides the following technical solutions:
[0005] An electric chair comprises a leg rest, a seat cushion and a backrest, wherein the seat cushion is fixedly connected to a base, the back surface of the backrest is fixedly connected to a backrest connecting rod, the backrest connecting rod is connected to a driving mechanism, the driving mechanism comprises an electric push rod, a connecting piece, a sliding assembly and a slide rail, the upper end of the electric push rod is hinged to the connecting piece or to the upper end of the backrest connecting rod, the lower end of the electric push rod is hinged to the slide rail, an extension section of the slide rail or the base, the upper end of the connecting piece is hinged to the backrest connecting rod, the sliding assembly is connected to the connecting piece and can slide along the slide rail, the lower end of the slide rail is connected to the base directly or through the extension section, the leg rest bottom is hinged to a leg support connecting rod, and the leg support connecting rod is hinged to the backrest connecting rod.
[0006] Furthermore, seat cushion support members are respectively provided on both sides of the bottom of the seat cushion, and a rotating wheel is provided on the seat cushion support member. The base includes a guide plate and a support rod, and a rotating wheel groove is provided on the guide plate. The rotating wheel moves along the rotating wheel groove. One end of the support rod is hinged to the seat cushion support member, and the other end is hinged to the guide plate.
[0007] Furthermore, the base also includes a support plate, the support plate is fixedly connected between the two guide plates, and the slide rail is fixedly connected to the support plate directly or through the extension section.
[0008] Furthermore, the slide rail is arranged on the back side of the backrest and is arc-shaped.
[0009] Furthermore, the slide rail and the extension section are an integral structure, and the entire structure is a sickle-shaped structure.
[0010] Furthermore, the slide rail includes a slide plate and a back rib, and the slide assembly slides along the slide plate.
[0011] Furthermore, the sliding assembly includes a surface pulley group sliding along the surface of the skateboard and / or a side pulley group sliding along the edge of the skateboard.
[0012] One or more technical solutions provided in the present invention have at least the following technical effects or advantages:
[0013] 1. The utility model drives the leg support, seat cushion and backrest to move in linkage through an electric push rod. When the backrest is gradually laid flat, the backrest connecting rod and the leg support connecting rod transmit the motion to the leg support, so that the leg support is gradually laid flat, thereby completing the synchronous adjustment of the leg support and the backrest. That is, the sitting posture of the passenger can be freely adjusted from sitting upright to lying down at any angle through one power source, giving the passenger maximum adjustment freedom to meet the most comfortable sitting posture of passengers with different needs.
[0014] 2. In the electric seat of the utility model, the sliding assembly adopts multiple sets of sliding wheels to slide along the slide rails at two vertical angles, so that the leg rest, seat cushion and backrest of the electric seat can move at a uniform and stable speed, which is more comfortable and enhances the passenger's experience. In addition, the design of the structure ensures that there is no noise during the adjustment of the electric seat.
[0015] 3. In the electric seat of the utility model, the slide rail and the extension section are designed to be an integrated structure, and the overall structure is sickle-shaped, so that the seat runs more stably during the adjustment process and the synchronous adjustment of the backrest and the leg rest is more accurately achieved.
[0016] 4. The utility model electric seat does not tilt backwards during the movement of the seat backrest, and there is no need to consider the gap between the rear mounting surface and the fixed surface of the seat, thus reducing the installation space. It is suitable for installation and use in a narrow space. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A three-dimensional diagram of the electric push rod of the electric seat in the embodiment of the present application in the extended state;
[0018] Figure 2 for Figure 1 The enlarged view of the part A of the electric seat shown;
[0019] Figure 3 This is a front view of the electric push rod of the electric seat in the embodiment of the present application in the extended state;
[0020] Figure 4 This is a rear view of the electric push rod of the electric seat in the extended state according to the embodiment of the present application;
[0021] Figure 5 A three-dimensional diagram of the electric push rod of the electric seat in the embodiment of the present application in the retracted state;
[0022] Figure 6 This is a front view of the electric push rod of the electric seat in the embodiment of the present application in the retracted state;
[0023] Figure 7 This is a rear view of the electric push rod of the electric seat in the retracted state according to the embodiment of the present application.
[0024] The accompanying drawings are marked as follows: 1. seat cushion; 2. backrest; 3. electric push rod; 4. base; 41. guide plate; 411. wheel groove; 42. support rod; 43. support plate; 5. connector; 6. sliding assembly; 61. surface pulley group; 62. side pulley group; 7. slide rail; 71. slide plate; 72. back rib; 8. leg support; 9. leg support connecting rod; 10. backrest connecting rod; 11. seat cushion support; 111. wheel. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0027] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0028] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0030] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0031] Example:
[0032] An electric seat, such as Figure 1-6 As shown, it includes a leg rest 8, a seat cushion 1 and a backrest 2, the seat cushion 1 is fixedly connected to the base 4, the back of the backrest 2 is fixedly connected to the backrest connecting rod 10, the backrest connecting rod 10 is connected to a driving mechanism, the driving mechanism includes an electric push rod 33, a connecting member 5, a sliding assembly 6 and a slide rail 7, the upper end of the electric push rod 33 is hinged to the connecting member 5 or to the upper end of the backrest connecting rod 10, the lower end of the electric push rod 33 is hinged to the slide rail 7, an extension section of the slide rail 7 or the base 4, the upper end of the connecting member 5 is hinged to the backrest connecting rod 10, the sliding assembly 6 is connected to the connecting member 5 and can slide along the slide rail 7, the lower end of the slide rail 7 is directly or through the extension section connected to the base 4, the leg rest 8 is hinged to a leg support connecting rod 9 at the bottom, and the leg support connecting rod 9 is hinged to the backrest connecting rod 10.
[0033] Further preferably, Figure 3 and Figure 6As shown, the bottom sides of the seat cushion 1 are also provided with seat cushion support members 11, and the seat cushion support member 11 is provided with a rotating wheel 111. The base 4 includes a guide plate 41 and a support rod 42. The guide plate 41 is provided with a rotating wheel groove 411, and the rotating wheel 111 moves along the rotating wheel groove 411. One end of the support rod 42 is hinged to the seat cushion support member 11, and the other end is hinged to the guide plate 41. More preferably, the support rod 42 is hinged to the position of the support rod 42 of the base 4 close to the leg rest 8, and the rotating wheel 111 is arranged at the position of the base support member 11 close to the backrest 2. The guide plate 41 is located below the base support member 11, and the shape of the rotating wheel groove 411 is consistent with the moving trajectory of the seat cushion 1 during the adjustment process, that is, it is an inclined linear slide. More preferably, the support plate 43 is approximately in the shape of a right triangle, and the rotating wheel groove 411 is parallel to the hypotenuse of the support plate 43. When the seat is adjusted from a sitting position to a lying position, Figure 3 The state shown moves to Figure 6 In the state shown, the electric push rod 33 is in an extended state, the support rod 42 is in a vertical state or a nearly vertical state, and the rotating wheel 111 is located at one end of the rotating wheel groove 411 close to the backrest 2. As the electric push rod 33 gradually retracts, the electric push rod 33 drives the backrest connecting rod 10 to rotate backward with the hinged position of the backrest connecting rod 10 and the leg support connecting rod 9 as the center, thereby driving the backrest 2 to rotate backward, and the backrest 2 drives the seat cushion 1 and the base support 11 to move forward and downward, and the seat cushion support 11 drives the rotating wheel 111 to move along the rotating wheel groove 411 toward the end close to the leg support 8. When the seat is adjusted from the lying state to the sitting state, that is, by Figure 6 The state shown moves to Figure 3 In the state shown, as the electric push rod 33 gradually extends, the electric push rod 33 drives the backrest connecting rod 10 to rotate forward with the hinged position of the backrest connecting rod 10 and the leg support connecting rod 9 as the center, thereby driving the backrest 2 to rotate forward, and the backrest 2 drives the seat cushion 1 and the base support 11 to move backward and upward, and the seat cushion support 11 drives the rotating wheel 111 to move along the rotating wheel groove 411 toward the end close to the backrest 2.
[0034] The utility model drives the leg support, seat cushion and backrest of the seat to be linked together through an electric push rod. When the backrest is gradually laid flat, the backrest connecting rod and the leg support connecting rod transmit the movement to the leg support, so that the leg support is gradually laid flat, thereby completing the synchronous adjustment of the leg support and the backrest. That is, the sitting posture of the occupant can be freely adjusted to any angle from sitting upright to lying down through one power source, giving the occupant maximum adjustment freedom and satisfying the most comfortable sitting posture for occupants with different needs.
[0035] Further preferably, Figure 4 and Figure 7As shown, the base 4 further includes a support plate 43, the support plate 43 is fixedly connected between the two guide plates 41, and the slide rail 7 is directly or fixedly connected to the support plate 43 through the extension section. More preferably, the slide rail 7 is provided with an extension section, and the slide rail 7 is fixedly connected to the support plate 43 through the extension section.
[0036] Further preferably, Figure 1 , Figure 4 , Figure 5 and Figure 7 As shown, the upper end of the electric push rod 33 is hinged to the connecting member 5, and the upper end of the connecting member 5 is hinged to the backrest connecting rod 10, and the backrest connecting rod 10 is fixedly arranged on the back of the backrest 2. Further preferably, an extension section is provided at the bottom of the slide rail 7, and the lower end of the electric seat is hinged to the extension section, one end of the extension section is connected to the slide rail 7, and the other end is fixedly connected to the base 4. The slide rail 7 and the extension section can be a split structure or an integrated structure. If it is a split structure, the slide rail 7 is fixedly connected to the extension section. Further preferably, the slide rail 7 and the extension section are an integrated structure, and the whole is a sickle-shaped structure, so that the seat runs more stably during the adjustment process, and the synchronous adjustment of the backrest and the leg rest can be achieved more accurately.
[0037] Further preferably, the slide rail 7 is arranged on the back of the backrest 2 and is arc-shaped. The slide rail 7 includes a slide plate 71 and a back rib 72, and the slide assembly 6 slides along the slide plate 71. Figure 2As shown, the sliding assembly 6 includes a surface pulley set 61 sliding along the surface of the skateboard 71 and / or a side pulley set 62 sliding along the edge of the skateboard 71. The pulley surface of the surface pulley set 61 contacts the surface of the skateboard 71, and the pulley surface of the side pulley set 62 contacts the edge of the skateboard 71. More preferably, the number of the sliding assemblies 6 is multiple, and each of the sliding assemblies 6 includes multiple pairs of surface pulley sets 61 and multiple pairs of side pulley sets 62, which can be selected by those skilled in the art based on the weight, volume, etc. of the backrest 2. For example, the number of the sliding wheel sets is 2, and each of the sliding wheel sets includes a pair of side pulley sets 62 sliding along the edge of the skateboard 71 and two pairs of surface pulley sets 61 sliding along the surface of the skateboard 71, and the two pairs of surface pulley sets 61 are respectively located on both sides of the back rib 72. The clamping direction of each pair of side pulley sets 62 is perpendicular to the clamping direction of each pair of surface pulley sets 61. The electric seat can reduce noise during adjustment, and the backrest 2 can be adjusted at a uniform and stable speed during adjustment, which increases the comfort of the passengers. More preferably, the back rib 72 is provided with a mounting hole, through which the electric seat can be fixed in the applied hyperbaric oxygen chamber. The installation of the electric seat is realized. The electric seat of the utility model has a seat back that will not fall backwards during movement, and there is no need to consider the gap between the rear mounting surface of the seat and the non-animated part, thus reducing the installation space. It is suitable for installation and use in a small space.
[0038] During use, when the passenger wants to adjust from the seat state to the reclining state, that is, from Figure 1 , Figure 3 Adjust the status to Figure 5 , Figure 6 In the state, the motor of the electric push rod 3 is started by the switch, so that the electric push rod 3 in the extended state is retracted at a uniform speed. When the telescopic rod is retracted into the sleeve, the electric push rod 3 drives the connecting member 5 to move downward, so that the sliding assembly 6 fixedly connected to the connecting member 5 slides from top to bottom along the slide rail 7. At the same time, the upper end of the slide rail 7 connecting member is hinged with the backrest connecting rod 10, so that the slide rail 7 connecting member drives the backrest 2 to rotate backward, so as to adjust the angle between the backrest 2 and the seat cushion 1 to gradually increase. At the same time, when the backrest connecting rod 10 and the backrest 2 rotate backward synchronously, the backrest connecting rod 10 drives the leg support connecting rod 9 to move forward, and the leg support connecting rod 9 drives the leg support 8 to rotate upward. Because the backrest 2 will produce a forward displacement while rotating backward, the backrest 2 drives the seat cushion 1 to move forward, and the sliding wheel 111 fixed on the seat cushion support member 11 moves forward along the slide groove to drive the support rod 42 to rotate forward, so that the angle between the support rod 42 and the support plate 43 increases, and the overall position of the seat cushion 1 moves forward and downward.
[0039] When the passenger wants to adjust from the reclining position to the seat position. Figure 5 , Figure 6 Adjust the status to Figure 1 , Figure 3 In the state, the motor of the electric push rod 3 is started by the switch, so that the electric push rod 3 in the retracted state is stretched out at a uniform speed. During the extension of the telescopic rod, the electric push rod 3 drives the connecting member 5 to move upward as a whole, so that the sliding assembly 6 fixedly connected to the connecting member 5 slides from bottom to top along the slide rail 7. At the same time, the upper end of the slide rail 7 connecting member is hinged with the backrest connecting rod 10, so that the slide rail 7 connecting member drives the backrest 2 to rotate forward, so as to adjust the angle between the backrest 2 and the seat cushion 1 to gradually decrease. At the same time, when the backrest connecting rod 10 rotates forward synchronously with the backrest 2, the backrest connecting rod 10 drives the leg support connecting rod 9 to move backward, and the leg support connecting rod 9 drives the leg support 8 to rotate downward. Because the backrest 2 will produce a backward displacement while rotating forward, the backrest 2 drives the seat cushion 1 to move backward, and the sliding wheel 111 fixed on the seat cushion support member 11 moves backward along the slide groove to drive the support rod 42 to rotate backward, so that the angle between the support rod 42 and the support plate 43 is smaller, and the overall position of the seat cushion 1 moves backward and upward.
[0040] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.
[0041] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. An electric chair, comprising a leg rest, a seat cushion and a backrest, wherein the seat cushion is fixedly connected to a base, characterized in that: The back side of the backrest is fixedly connected to the backrest connecting rod, and the backrest connecting rod is connected to a driving mechanism, which includes an electric push rod, a connecting piece, a sliding assembly and a slide rail. The upper end of the electric push rod is hinged to the connecting piece or to the upper end of the backrest connecting rod, and the lower end of the electric push rod is hinged to the slide rail, an extension section of the slide rail or a base. The upper end of the connecting piece is hinged to the backrest connecting rod, the sliding assembly is connected to the connecting piece and can slide along the slide rail, and the lower end of the slide rail is connected to the base directly or through the extension section. A leg support connecting rod is hinged to the bottom of the leg support, and the leg support connecting rod is hinged to the backrest connecting rod.
2. The electric seat according to claim 1, characterized in that: Seat cushion support members are respectively provided on both sides of the bottom of the seat cushion, and a rotating wheel is provided on the seat cushion support member. The base includes a guide plate and a support rod. A rotating wheel groove is provided on the guide plate, and the rotating wheel moves along the rotating wheel groove. One end of the support rod is hinged to the seat cushion support member, and the other end is hinged to the guide plate.
3. The electric seat according to claim 2, characterized in that: The base also includes a support plate, which is fixedly connected between the two guide plates, and the slide rail is fixedly connected to the support plate directly or through the extension section.
4. The electric seat according to claim 1, characterized in that: The slide rail is arranged on the back side of the backrest and is arc-shaped.
5. The electric chair according to claim 1, characterized in that: The slide rail and the extension section are integrated into one structure, and the whole structure is sickle-shaped.
6. The electric chair according to claim 1, characterized in that: The slide rail comprises a slide plate and a back rib, and the slide assembly slides along the slide plate.
7. The electric seat according to claim 6, characterized in that: The sliding assembly includes a surface pulley group sliding along the surface of the skateboard and / or a side pulley group sliding along the edge of the skateboard.