An electronically controlled chassis and seat

Abstract

An embodiment of the present invention relates to the technical field of seat adjustment control devices, and particularly relates to an electric control chassis and a seat. The electric control chassis includes: a chassis body; an electric control box provided on the chassis body and having a receiving space therein; a driving motor provided in the receiving space of the electric control box for controlling the lifting adjustment of the seat chassis and the pitching adjustment of the seat backrest; a wire winding mechanism connected to the output shaft of the driving motor and rotatable with the output shaft of the driving motor; a first pulling rope wound around the wire winding mechanism in a reverse direction; a second pulling rope wound around the wire winding mechanism in a forward direction; a backrest adjustment mechanism provided on the chassis body and fixedly connected to the other end of the first pulling rope; and a chassis lifting mechanism provided on the chassis body and fixedly connected to the other end of the second pulling rope. By the above method, the electric control chassis of the embodiment of the present invention can simplify the adjustment mechanisms for the lifting of the seat chassis and the pitching of the seat backrest, and improve the operation convenience.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of seat adjustment control devices, and particularly to an electric control chassis and a seat. Background Art

[0002] Existing seats are manually adjusted in terms of the lifting of the seat chassis and the pitching of the seat backrest in a mechanical manner, which results in a large number of internal control structures of the seat chassis and complex operations. Summary of the Invention

[0003] In view of the above problems, the embodiments of the present invention provide an electric control chassis and a seat, so as to simplify the adjustment mechanisms for the lifting of the seat chassis and the pitching of the seat backrest and improve the operation convenience.

[0004] According to one aspect of the embodiments of the present invention, there is provided an electric control chassis for seat adjustment, including: a chassis body; an electric control box provided on the chassis body and having a receiving space therein; a driving motor provided in the receiving space of the electric control box for controlling the lifting adjustment of the seat chassis and the pitching adjustment of the seat backrest; a wire winding mechanism connected to the output shaft of the driving motor and rotatable with the output shaft of the driving motor; a first pull rope reversely wound around the wire winding mechanism and having one end fixedly connected to the wire winding mechanism; a second pull rope positively wound around the wire winding mechanism and having one end fixedly connected to the wire winding mechanism; a backrest adjustment mechanism provided on the chassis body and fixedly connected to the other end of the first pull rope, and when the output shaft of the driving motor drives the wire winding mechanism to rotate in a first direction, the first pull rope is pulled to enable the backrest adjustment mechanism to be adjustable; a chassis lifting mechanism provided on the chassis body and fixedly connected to the other end of the second pull rope, and when the output shaft of the driving motor drives the wire winding mechanism to rotate in a second direction, the second pull rope is pulled to enable the chassis lifting mechanism to be adjustable.

[0005] In an optional manner, the electric control chassis further includes a wireless signal receiving device provided in the receiving space of the electric control box and electrically connected to the driving motor for receiving a wireless control signal to control the operation of the driving motor.

[0006] In an optional manner, a rotating shaft is provided on the wire winding mechanism, a retaining piece is sleeved on the rotating shaft, and an opening is provided on the retaining piece; a pair of photoelectric sensors corresponding to the position of the retaining piece is provided in the receiving space of the electric control box, and the pair of photoelectric sensors are in opposite light projection through the opening and output a control signal to the driving motor.

[0007] In an alternative embodiment, the chassis lifting mechanism includes a pneumatic rod and a rotational limiting member. One end of the pneumatic rod is provided with a push-button valve. One end of the rotational limiting member is rotatably connected to the chassis body, and the other end is connected to the second pull rope. When the drive motor drives the second pull rope to move, the second pull rope pulls the rotational limiting member to rotate, causing the rotational limiting member to press the push-button valve, so that the pneumatic rod moves up and down.

[0008] In an alternative embodiment, the chassis lifting mechanism further includes a force application direction adjusting member. The force application direction adjusting member is disposed at a position on the chassis body opposite to the rotational limiting member. The second pull rope passes through the force application direction adjusting member. The force application direction adjusting member is configured to adjust the moving direction of the second pull rope to be consistent with the tangential direction of the rotational direction of the rotational limiting member.

[0009] In an alternative embodiment, the force application direction adjusting member has a slot and a runner. The runner is disposed opposite to the rotational limiting member. The second pull rope is clamped in the slot and wound around the runner.

[0010] In an alternative embodiment, the chassis body includes a seat body and a backrest support member rotatably connected to the seat body. The backrest adjusting mechanism includes a block, a locking slider, and a first elastic member. The block is disposed on the backrest support member. One end of the first elastic member is connected to the seat body, and the other end is connected to the locking slider, and is configured to provide an elastic force for the locking slider to slide towards the block. The locking slider is in limiting cooperation with the block and is configured to perform limiting adjustment on the backrest support member.

[0011] In an alternative embodiment, the backrest adjusting mechanism further includes an elastic slider and a second elastic member. The elastic slider is slidably disposed on the seat body. One side of the locking slider is provided with a first rack, and one end of the elastic slider is provided with a second rack. The elastic slider is engaged with the first rack of the locking slider through the second rack to lock and limit the locking slider. One end of the second elastic member is disposed on the seat body, and the other end is connected to the elastic slider, and is configured to drive the elastic slider to separate from the locking slider.

[0012] In an alternative embodiment, the backrest adjustment mechanism further includes an active slider and a third elastic member; the active slider is slidably disposed on the seat body, and the active slider has a first inclined edge; the elastic slider has a second inclined edge; one end of the active slider is connected to the third elastic member, and the other end is connected to the first pulling rope; the other end of the third elastic member is connected to the seat body, and is configured to provide an elastic force for the active slider to slide towards the elastic slider; when the first pulling rope pulls the active slider to slide, the first inclined edge of the active slider is separated from the second inclined edge of the elastic slider, and the elastic slider slides towards the active slider under the action of the second elastic member, so that the second rack on the elastic slider is separated from the first rack on the locking slider.

[0013] In an alternative embodiment, a manual control handle is provided on the chassis body, and the manual control handle is respectively connected to the backrest adjustment mechanism and the chassis lifting mechanism through a third pulling rope and a fourth pulling rope, for controlling the backrest adjustment mechanism and the chassis lifting mechanism.

[0014] According to another aspect of the embodiments of the present invention, a seat is provided, and the seat includes the electric control chassis.

[0015] In an alternative embodiment, the seat further includes an armrest fixed to the electric control chassis, a wireless signal transmitting device is disposed inside the armrest, and a switch electrically connected to the wireless signal transmitting device is disposed on an outer wall of the armrest.

[0016] The electric control chassis of the embodiments of the present invention is only provided with one driving motor, the first pulling rope and the second pulling rope are wound around the winding mechanism in opposite directions, and the output shaft of the driving motor rotates forward or reversely to drive the winding mechanism to rotate in the first direction or the second direction respectively, so as to only pull the first pulling rope or only pull the second pulling rope, and further respectively realize the adjustment of the backrest adjustment mechanism or the adjustment of the chassis lifting mechanism. The structure of the electric control adjustment of the seat chassis is simplified, the space occupation is saved, the production cost is effectively reduced, and the electric control structure is simple and easy to operate.

[0017] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are hereinafter given. Description of the Drawings

[0018] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the following detailed description of the preferred embodiments. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered to be a limitation of the present invention. Also, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0019] Figure 1 is a schematic structural diagram of an electric control chassis provided by an embodiment of the present invention;

[0020] Figure 2 is an exploded structural diagram of an electric control box in the electric control chassis provided by an embodiment of the present invention;

[0021] Figure 3 is a schematic structural diagram of a baffle and an opposed sensor in the electric control chassis provided by an embodiment of the present invention;

[0022] Figure 4 is an exploded structural diagram of one perspective of the electric control chassis provided by an embodiment of the present invention;

[0023] Figure 5 is Figure 4 a partial enlarged structural diagram at A;

[0024] Figure 6 is a sectional structural diagram of the cooperation between a pneumatic rod and a rotation limiting member in the electric control chassis provided by an embodiment of the present invention;

[0025] Figure 7 is a structural diagram of the cooperation between a force application direction adjusting member and a rotation limiting member in the electric control chassis provided by an embodiment of the present invention;

[0026] Figure 8 is an exploded structural diagram of another perspective of the electric control chassis provided by an embodiment of the present invention;

[0027] Figure 9 is Figure 8 a partial enlarged structural diagram at B;

[0028] Figure 10 is a schematic structural diagram of a seat provided by an embodiment of the present invention.

[0029] The reference numerals in the specific embodiments are as follows:

[0030] Electric control chassis 100, chassis body 110, seat body 111, backrest support 112, manual control handle 113, electric control box 120, drive motor 130, wire winding mechanism 140, rotating shaft 141, retaining piece 142, opening 1421, opposed sensor 143, first pull rope 150, second pull rope 160, wireless signal receiving device 170, pneumatic rod 181, button valve 182, rotation limiting member 183, hinged end 1831, force receiving end 1832, force application direction adjusting member 184, card slot 1841, rotating wheel 1842, locking block 191, locking slider 192, first elastic member 1921, elastic slider 193, second elastic member 194, active slider 195, third elastic member 196, transmission mechanism 200, battery 300, battery housing structure 400, seat 10, armrest 11, switch 12. Specific embodiments

[0031] The embodiments of the technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and thus are only examples and cannot be used to limit the protection scope of the present invention.

[0032] According to one aspect of an embodiment of the present invention, an electric control chassis is provided for seat adjustment, so as to simplify the adjustment mechanism for the lifting of the seat chassis and the pitching of the seat backrest, and improve the operation convenience.

[0033] Please refer to Figure 1 and Figure 2 , which respectively schematically show the structure of the electric control chassis of an embodiment of the present invention and the exploded structure of the electric control box in the electric control bottom plate.

[0034] As shown in the figure, the electric control chassis 100 includes: a chassis body 110, an electric control box 120, a driving motor 130, a wire winding mechanism 140, a first pulling rope 150, a second pulling rope 160, a backrest adjusting mechanism, and a chassis lifting mechanism. The electric control box 120 is disposed on the chassis body 110 and has a receiving space therein. The driving motor 130 is disposed in the receiving space of the electric control box 120 and is used to control the lifting adjustment of the seat chassis and the pitching adjustment of the seat backrest. The wire winding mechanism 140 is connected to the output shaft of the driving motor 130 and can rotate with the output shaft of the driving motor 130. The first pulling rope 150 is reversely wound around the wire winding mechanism 140, and one end thereof is fixedly connected to the wire winding mechanism 140. The second pulling rope 160 is forwardly wound around the wire winding mechanism 140, and one end thereof is fixedly connected to the wire winding mechanism 140. The backrest adjusting mechanism is disposed on the chassis body 110 and is fixedly connected to the other end of the first pulling rope 150. When the output shaft of the driving motor 130 drives the wire winding mechanism 140 to rotate in the first direction, the first pulling rope 150 is pulled, so that the backrest adjusting mechanism can be adjusted in pitch. The chassis lifting mechanism is disposed on the chassis body 110 and is fixedly connected to the other end of the second pulling rope 160. When the output shaft of the driving motor 130 drives the wire winding mechanism 140 to rotate in the second direction opposite to the first direction, the second pulling rope 160 is pulled, so that the chassis lifting mechanism can be adjusted in lifting.

[0035] In the electric control chassis 100 according to the embodiment of the present invention, only one driving motor 130 is provided, the first pulling rope 150 and the second pulling rope 160 are wound around the wire winding mechanism 140 in opposite directions, and the output shaft of the driving motor 130 drives the wire winding mechanism 140 to rotate in the first direction or the second direction by forward rotation or reverse rotation respectively, so as to pull only the first pulling rope 150 or only the second pulling rope 160, and further realize the adjustment of the backrest adjusting mechanism or the adjustment of the chassis lifting mechanism respectively. The structure of the electric control adjustment of the seat chassis is simplified, the space occupation is saved, the production cost is effectively reduced, and the electric control structure is simple and easy to operate.

[0036] Please continue to refer to Figure 2 , in the specific embodiment shown in the figure, the output shaft of the driving motor 130 can be in transmission connection with the wire winding mechanism 140 through a transmission mechanism 200. The transmission mechanism 200 can be, for example, any combination of a worm, a turbine, a gear, and a helical gear to realize the deceleration, acceleration of the driving motor 130, and the change of the transmission shaft direction. In order to ensure the normal operation of the driving motor 130, a battery receiving structure 400 for receiving the battery 300 can be provided on the electric control box 120.

[0037] Those skilled in the art should understand that the figure shown is only an example. In other embodiments, the wire winding mechanism 140 can also be directly sleeved on the output shaft of the driving motor 130. When the output shaft of the driving motor 130 rotates, the wire winding mechanism 140 is directly driven to rotate.

[0038] Please refer to again Figure 2 In some embodiments, the electric control chassis 100 may further include a wireless signal receiving device 170. The wireless signal receiving device 170 is disposed in the accommodation space of the electric control box 120 and electrically connected to the drive motor 130, and is configured to receive a wireless control signal to control the operation of the drive motor 130.

[0039] By providing the wireless signal receiving device 170, remote control of the backrest adjustment mechanism and the chassis lifting mechanism can be achieved. For example, the adjustment of the seat can be realized by sending a wireless control signal through a remote control terminal. In addition, the provision of the wireless signal receiving device 170 can also enable the control switch on the electric control chassis 100 or the seat to control the drive motor 130 in the electric control box 120 through a wireless signal, thereby eliminating the electrical connection wires inside the electric control chassis 100, further simplifying the structure of the electric control chassis 100, eliminating the internal hollow wire routing space, and effectively improving the structural stability of the electric control chassis 100.

[0040] Please continue to refer to Figure 2 In the specific embodiment described in the figure, the wireless signal receiving device 170 may be disposed on the circuit board to achieve its wireless signal receiving function.

[0041] Please refer to Figure 2 and Figure 3 In some embodiments, a rotating shaft 141 is provided on the winding mechanism 140. A retaining piece 142 is sleeved on the rotating shaft 141. An opening 1421 is provided on the retaining piece 142. An opposed sensor 143 corresponding to the position of the retaining piece 142 is disposed in the accommodation space of the electric control box 120. The opposed sensor 143 is opposed through the opening 1421 and outputs a control signal to the drive motor 130.

[0042] By providing the retaining piece 142 and the opposed sensor 143, the control of the rotation stroke of the drive motor 130 is achieved, and the situation that the pulling rope is broken due to the over-large rotation stroke of the output shaft of the drive motor 130 is avoided.

[0043] Please continue to refer to Figure 3 In the specific embodiment shown in the figure, the number of the retaining pieces 142 and the opposed sensors 143 are both set to two, one for controlling the forward rotation stroke of the rotating shaft 141 and the other for controlling the reverse rotation stroke of the rotating shaft 141.

[0044] Please refer to Figures 4 to 6, the structure of the chassis lifting mechanism in the electric control chassis 100 according to an embodiment of the present invention is schematically shown in the figure. In some embodiments, the chassis lifting mechanism includes a pneumatic rod 181 and a rotation limiting member 183, and a key valve 182 is provided at one end of the pneumatic rod 181. One end of the rotation limiting member 183 is connected to the chassis body, and the other end is connected to the second pulling rope 160. When the driving motor drives the second pulling rope 160 to move, the second pulling rope 160 pulls the rotation limiting member 183 to rotate, so that the rotation limiting member 183 presses the key valve 182, so that the pneumatic rod 181 moves up and down.

[0045] Please continue to refer to Figure 6 , in the specific embodiment shown in the figure, the rotation limiting member 183 has a hinged end 1831 rotatably connected to the chassis body 110 and a force receiving end 1832 fixedly connected to the second pulling rope 160. In use, when the driving motor 130 works and reverses, the second pulling rope 160 is pulled, so that the rotation limiting member 183 presses down the key valve 182. When the chassis body 110 is not affected by an external force or the external force received is less than the force for the pneumatic rod 181 to automatically rise and reset, the pneumatic rod 181 automatically rises and resets and jacks up the chassis body 110 to realize the upward adjustment of the seat. When the driving motor 130 works and reverses, the second pulling rope 160 is pulled, so that the rotation limiting member 183 presses down the key valve 182. When a person sits on the seat and the downward gravity of the person is greater than the automatic rising and resetting force of the pneumatic rod 181, the pneumatic rod 181 is pressed down and slides to realize the downward adjustment of the seat.

[0046] Please refer to Figure 7 , the structure of the force application direction adjusting member in the electric control chassis according to an embodiment of the present invention is schematically shown in the figure. In some embodiments, the chassis lifting mechanism may further include a force application direction adjusting member 184, and the force application direction adjusting member 184 is arranged at a position opposite to the rotation limiting member 183 on the chassis body 110; the second pulling rope 160 passes through the force application direction adjusting member 184; the force application direction adjusting member 184 is used to adjust the moving direction of the second pulling rope 160 to be consistent with the tangential direction of the rotation direction of the rotation limiting member 183.

[0047] By providing the force application direction adjusting member 184, the pulling force direction of the second pulling rope 160 acting on the rotation limiting member 183 is always tangent to the rotation trajectory circle of the rotation limiting member 183, so that the effective pulling force of the second pulling rope 160 acting on the rotation limiting member 183 is the largest, which is more conducive to easily pulling the rotation limiting member 183.

[0048] Please refer to again Figure 7 , in some embodiments, the force application direction adjusting member 184 has a card slot 1841 and a runner 1842. The runner 1842 is arranged opposite to the rotation limiting member 183. The second pulling rope 160 is clamped in the card slot 1841 and wound around the runner 1842.

[0049] Please continue to refer to Figure 7 Figure 7 , in the specific embodiment shown in the figure, the runner 1842 is located at the orthographic projection of the force-receiving end 1832 on the chassis body. The second drawstring 160 is clamped in the card slot 1841 and wound around the runner 1842. When the drive motor rotates, it drives the second drawstring 160 to move in a direction parallel to the chassis body 110. When passing through the force application direction adjusting member 184, the moving direction of the second drawstring 160 is adjusted to a direction tangent to the circular trajectory of the force-receiving end 1832, and then the second drawstring 160 pulls the force-receiving end 1832 to move.

[0050] Please refer to Figure 8 and Figure 9 Figure 9 , the figure schematically shows the structure of the backrest adjustment mechanism in the electric control chassis 100 according to an embodiment of the present invention. In some embodiments, the chassis body may include a seat body 111 and a backrest support member 112 rotatably connected to the seat body 111. The backrest adjustment structure includes a clamping block 191, a locking slider 192, and a first elastic member 1921. The clamping block 191 is provided on the backrest support member 112. One end of the first elastic member 1921 is connected to the seat body 111, and the other end is connected to the locking slider 192, and is used to provide an elastic force for the locking slider 192 to slide towards the clamping block 191. The locking slider 192 is in limit cooperation with the clamping block 191 and is used for limit adjustment of the backrest support member 112.

[0051] Through the limit cooperation of the clamping block 191 and the locking slider 192, the limit fixation of the rotation of the backrest support member 112 is realized.

[0052] Please refer to again Figure 8 and Figure 9 Figure 9 , in some embodiments, the backrest adjustment mechanism may further include an elastic slider 193 and a second elastic member 194 (for example, a torsion spring as shown in Figure 5 Figure 5 ). The elastic slider 193 is slidably provided on the seat body 111. A first rack is provided on one side of the locking slider 192, and a second rack is provided at one end of the elastic slider 193. The elastic slider 193 is engaged with the first rack of the locking slider 192 through the second rack to lock and limit the locking slider 192. One end of the second elastic member 194 is provided on the seat body 111, and the other end is connected to the elastic slider 193, and is used to drive the elastic slider 193 to slide and separate from the locking slider 192.

[0053] Through the engagement of the second rack on the elastic slider 193 with the first rack on the locking slider 192, the sliding fixation of the locking slider 192 is realized, so that the locking slider 192 fixes the limit of the clamping block 191, and further the rotation fixation of the backrest support member 112 is realized.

[0054] Please refer to againFigure 8 and Figure 9 In some embodiments, the backrest adjustment mechanism may further include an active slider 195 and a third elastic member 196. The active slider 195 is slidably disposed on the seat body 111. The active slider 195 has a first inclined edge, and the elastic slider 193 has a second inclined edge. One end of the active slider 195 is connected to the third elastic member 196, and the other end is connected to the first pull rope 150. The other end of the third elastic member 196 is connected to the seat body 111 and is configured to provide an elastic force for the active slider 195 to slide toward the elastic slider 193. When the first pull rope 150 pulls the active slider 195 to slide (the sliding direction is as shown by the arrow direction on the active slider 195 in Figure 9 ), the first inclined edge of the active slider 195 is separated from the second inclined edge of the elastic slider 193, and the elastic slider 193 slides toward the active slider 195 under the action of the second elastic member 194, so that the second rack on the elastic slider 193 is separated from the first rack on the locking slider 192.

[0055] By providing the active slider 195, the pulling direction of the first pull rope 150 is effectively optimized, making it easier to pull the active slider 195 by the first pull rope 150, thereby facilitating the unlocking of the locking slider 192 more easily.

[0056] Please refer to again Figure 1 In some embodiments, a manual control handle 113 may be provided on the chassis body 110. The manual control handle 113 is connected to the backrest adjustment mechanism and the chassis lifting mechanism through a third pull rope and a fourth pull rope respectively, and is configured to control the pitching of the backrest adjustment mechanism and the lifting of the chassis.

[0057] By providing the manual control handle 113, while realizing the electric control of the backrest adjustment mechanism and the chassis lifting mechanism, manual control can also be performed separately, which is more convenient for operating and controlling the backrest adjustment mechanism and the chassis lifting mechanism.

[0058] According to another aspect of the embodiments of the present invention, a seat is provided.

[0059] Please refer to Figure 9 , which schematically shows the structure of the seat according to an embodiment of the present invention. As shown in the figure, the seat 10 includes an electric control chassis 100.

[0060] Please continue to refer to Figure 9 In some embodiments, the seat 10 may further include an armrest 11 fixed to the electric control chassis 100. A wireless signal transmitting device is provided inside the armrest 11, and a switch 12 electrically connected to the wireless signal transmitting device is provided on the outer wall of the armrest 11.

[0061] In the seat 10 according to an embodiment of the present invention, by providing a switch 12 on the armrest 11, the switch 12 is used to control the wireless signal transmitting device to send a wireless control signal to the wireless signal receiving device 170 in the electric control chassis 100, so as to realize the convenient electric control adjustment of the backrest pitch and chassis lift in the seat 10.

[0062] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present invention should have the ordinary meanings understood by those skilled in the art to which the embodiments of the present invention belong.

[0063] In the description of the embodiments of the present invention, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present invention.

[0064] In addition, technical terms such as "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the embodiments of the present invention, the meaning of "a plurality" is more than two, unless otherwise specifically defined.

[0065] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0066] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electronically controlled chassis for seat adjustment, characterized in that, Comprising: The chassis body; An electronic control box, provided on the chassis body and having a receiving space therein; A driving motor, provided in the receiving space of the electronic control box, for controlling the lifting adjustment of the seat chassis and the pitching adjustment of the seat backrest; A wire winding mechanism, connected to the output shaft of the driving motor and rotatable with the output shaft of the driving motor; A first pull rope, reversely wound around the wire winding mechanism and fixedly connected to the wire winding mechanism at one end; A second pull rope, forwardly wound around the wire winding mechanism and fixedly connected to the wire winding mechanism at one end; A backrest adjustment mechanism, provided on the chassis body and fixedly connected to the other end of the first pull rope. When the output shaft of the driving motor drives the wire winding mechanism to rotate in a first direction, the first pull rope is pulled to make the backrest adjustment mechanism adjustable; A chassis lifting mechanism, provided on the chassis body and fixedly connected to the other end of the second pull rope. When the output shaft of the driving motor drives the wire winding mechanism to rotate in a second direction, the second pull rope is pulled to make the chassis lifting mechanism adjustable; The chassis body includes a seat body and a backrest support member rotatably connected to the seat body. The backrest adjustment mechanism includes a clamping block, a locking slider and a first elastic member; the first elastic member is used to provide an elastic force for the locking slider to slide towards the clamping block; the locking slider is in limit fit with the clamping block for limiting and adjusting the backrest support member; The backrest adjustment mechanism further includes an elastic slider and a second elastic member; a first rack is provided on one side of the locking slider, and a second rack is provided at one end of the elastic slider. The elastic slider is engaged with the first rack of the locking slider through the second rack to lock and limit the locking slider; the second elastic member is used to drive the elastic slider to slide and separate from the locking slider; The backrest adjustment mechanism further includes an active slider and a third elastic member; the active slider has a first inclined edge; the elastic slider has a second inclined edge; the third elastic member is used to provide an elastic force for the active slider to slide towards the elastic slider; When the first pull rope pulls the active slider to slide, the first inclined edge of the active slider is separated from the second inclined edge of the elastic slider, and the elastic slider slides towards the active slider side under the action of the second elastic member, so that the second rack on the elastic slider is separated from the first rack on the locking slider.

2. The electric control chassis according to claim 1, wherein The electric control chassis further includes a wireless signal receiving device, which is provided in the receiving space of the electronic control box and electrically connected to the driving motor, and is used to receive a wireless control signal to control the driving motor to work.

3. The electronically controlled chassis according to claim 1, wherein A rotating shaft is provided on the wire winding mechanism, a retaining piece is sleeved on the rotating shaft, and an opening is provided on the retaining piece; An opposed sensor corresponding to the position of the retaining piece is provided in the receiving space of the electronic control box. The opposed sensor is opposed through the opening and outputs a control signal to the driving motor.

4. The electric control chassis according to claim 1, wherein The chassis lifting mechanism includes a pneumatic rod and a rotation limiting member. One end of the pneumatic rod is provided with a key valve. One end of the rotation limiting member is rotatably connected to the chassis body, and the other end is connected to the second pull rope. When the drive motor drives the second pull rope to move, the second pull rope pulls the rotation limiting member to rotate, so that the rotation limiting member presses the key valve, causing the pneumatic rod to move up and down.

5. The electronically controlled chassis according to claim 4, wherein, The chassis lifting mechanism further includes a force application direction adjusting member. The force application direction adjusting member is arranged at a position on the chassis body opposite to the rotation limiting member; the second pull rope passes through the force application direction adjusting member. The force application direction adjusting member is used to adjust the moving direction of the second pull rope to be consistent with the tangential direction of the rotation direction of the rotation limiting member.

6. The electric control chassis according to claim 5, characterized in that, The force application direction adjusting member has a card slot and a runner, and the runner is arranged opposite to the rotation limiting member. The second pull rope is clamped in the card slot and wound around the runner.

7. The electric control chassis according to claim 1, wherein The clamping block is arranged on the backrest support member. One end of the first elastic member is connected to the seat body, and the other end is connected to the locking slider.

8. The electronically controlled chassis according to claim 7, characterized in that, The elastic slider is slidably arranged on the seat body. One end of the second elastic member is arranged on the seat body, and the other end is connected to the elastic slider.

9. The electronically controlled chassis according to claim 8, characterized in that The active slider is slidably arranged on the seat body. One end of the active slider is connected to the third elastic member, and the other end is connected to the first pull rope. The other end of the third elastic member is connected to the seat body.

10. The electric control chassis according to claim 1, wherein a manual control handle is provided on the chassis body, and the manual control handle is respectively connected to the backrest adjusting mechanism and the chassis lifting mechanism through a third pull rope and a fourth pull rope, for controlling the backrest adjusting mechanism and the chassis lifting mechanism.

11. A seat, characterized in that, The seat includes the electric control chassis according to any one of claims 1-10.

12. The seat according to claim 11, wherein, The seat further includes an armrest fixed on the electric control chassis. A wireless signal transmitting device is arranged inside the armrest, and a switch electrically connected to the wireless signal transmitting device is arranged on the outer wall of the armrest.

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