Electric lifting and unfolding mechanism for automobile table

Abstract

The present invention belongs to the technical field of automobile accessories, and specifically relates to an electric lifting and unfolding mechanism for an automobile table top; wherein slide groove plates are fixed on both sides of the front of the back panel, and vertical slide rails are fixed on the inner side of the slide groove plates, a driving screw rod is arranged on the back panel, and the driving screw rod is driven by a motor, the upright arm is connected to the vertical slide rail through a slider, and its rear end face is connected to the screw slider, the upright arm and the support arm are hinged through a rotary shaft, the shift fork is fitted in the curved slide groove through a roller bearing, the table top is connected to the support arm through a horizontal slide rail, and a pressure rod support structure is provided between the support arm and the upright arm; the present invention is used in automobile interior products, such as sub-panels, aviation seat armrests, door panels, etc., and its structure is compact and can be hidden when not in use.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile accessories, and particularly relates to an electric lifting and unfolding mechanism for an automobile table. Background Art

[0002] With the popularization of automobiles, people have increased their requirements for automobile functions. Tables are one of the important functions that can facilitate passengers to temporarily eat, store things, and work in the car. However, traditional automobile table tops are all manually operated, which requires a lot of manual operation force and poor comfort. For example:

[0003] In the prior art, patent number CN 207374190 discloses an invention patent for an electric folding hidden table top. Although this patent realizes the electric function requirement of the table top, the table top has a cantilever structure after being unfolded and has no support, and the table top has poor rigidity in use.

[0004] In the prior art, patent number CN 209616970 discloses an invention patent for an "electric small table controlled by a pull-wire motor". Although this patent realizes the electric function requirements of the table, 1. It uses an arc plus a straight line trajectory, and the lifting slider and the table assembly are hinged by a connecting rod. The cumulative assembly error of multiple parts will affect the flatness of the unfolded surface of the table. 2. The weight of the table and the slide groove work together to achieve unfolding. When the table is hidden and closed, it needs to be tilted and cannot be upright, which takes up space. When it is opened while a vehicle is driving, the operation stability is poor.

[0005] To sum up, there is still a safety hazard of pinching hands when the table top is unfolded. In the future, the development of automobile interiors will move towards intelligent electrification, and it is necessary to develop electric table tops. Summary of the Invention

[0006] In order to overcome the above problems, the present invention provides an electric lifting and unfolding mechanism for a car table top, which is used in car interior products such as sub-panels, aviation seat armrests, door panels, etc. It has a compact structure and can be hidden when not in use.

[0007] An electric lifting and unfolding mechanism for a car table comprises a back panel 1, a left slide panel 2 with a curved slide, a right slide panel 3 with a curved slide, an upright arm 4, a support arm 5, a table panel 6, a vertical slide rail 7, a front connecting plate 8, a driving screw rod 9, a shift fork 10, a motor 12 and a pressure rod support structure 11, wherein the left slide panel 2 and the right slide panel 3 are respectively fixed to the left and right sides of the front end of the back panel 1, and the vertical slide rail 7 is respectively fixed to the inner sides of the left slide panel 2 and the right slide panel 3, the driving screw rod 9 is arranged on the back panel 1 between the left slide panel 2 and the right slide panel 3, and the driving end of the driving screw rod 9 is connected to the motor 12 and driven by the motor 12. The left and right ends of 4 are respectively connected to the left and right vertical slide rails 7 through sliders, and can slide up and down along the vertical slide rails 7, and the rear end face of the upright arm 4 is connected to the screw slider on the driving screw 9 through a connecting piece 41, the top of the upright arm 4 and the rear end of the support arm 5 are hinged through a rotary shaft, and the left and right sides of the rear end of the bottom of the support arm 5 are respectively fixed with a shift fork 10, and the outside of the shift fork 10 is assembled in the corresponding curved slide groove through a roller bearing 13. The table plate 6 is connected to the support arm 5 through a horizontal slide rail, and the front end of the left slide plate 2 and the right slide plate 3 are installed with a front connecting plate 8, and a pressure rod support structure 11 is provided between the support arm 5 and the upright arm 4.

[0008] The pressure rod support structure 11 includes a pressure rod 111, a pressure rod support 112 and a pressure rod slider 113; wherein the pressure rod support 112 is fixed at the bottom of the support arm 5, and the pressure rod slider 113 is connected to the slide groove 42 on the upright arm 4, so that the pressure rod slider 113 can slide up and down along the upright arm 4, and one end of the pressure rod 111 is hinged to the pressure rod support 112, and the other end is hinged to the pressure rod slider 113.

[0009] The pressure rod support structure 11 also includes a damper 116, wherein the damper 116 includes a damping gear and a damping rack, wherein the damping rack is fixed in the slide groove 42 of the upright arm 4, and a damping gear is installed on the back of the pressure rod slider 113, and the damping gear and the damping rack cooperate to form the damper 116.

[0010] The pressure rod support structure 11 also includes a slide groove pressure plate 115, wherein a slide groove pressure plate 115 is fixed on both sides of the upright arm 4 at the front end of the slide groove 42, and the two slide groove pressure plates 115 limit the pressure rod slider 113 assembled in the slide groove 42, so that the pressure rod slider 113 can slide in the slide groove 42.

[0011] The pressure rod support structure 11 further includes a locking component 114 , which is fixed to the lower end of the support arm 5 and located at the left and right ends of the pressure rod 111 , and circular holes for cooperating with the locking component 114 are respectively provided on the left and right sides of the pressure rod 111 .

[0012] The locking component 114 is a ball screw.

[0013] The front connecting plate 8 includes two, which are respectively fixed at the upper and lower ends between the left slide plate 2 and the right slide plate 3, wherein the left end of the front connecting plate 8 is fixed at the front end of the left slide plate 2, and the right end of the front connecting plate 8 is fixed at the front end of the right slide plate 3.

[0014] When the motor 12 drives the upright arm 4 to move upward by driving the screw rod 9, the table top 6 is unfolded, and when the table top 6 is unfolded to the point where the plane where the table top 6 is located is 90 degrees to the vertical plane, the roller bearing 13 moves to the uppermost end of the curved slide groove, and the locking component 114 fits into the circular hole of the corresponding pressure rod 111.

[0015] The curved chutes on the left chute plate 2 and the right chute plate 3 have the same shape and size, and both include an arc segment and a vertical segment, wherein the arc segment is located above the vertical segment.

[0016] Beneficial effects of the present invention:

[0017] The present invention has a compact structure, and the table top can be hidden when not in use, meeting the needs of use in different situations; it opens smoothly; the opening and retracting actions are all driven by a motor and rely on electricity for operation, and the action response speed is fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings used in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a partial structural diagram of the present invention.

[0021] Figure 3 It is a schematic diagram of the decomposition structure of the present invention.

[0022] Among them: back plate 1, left slide plate 2, right slide plate 3, vertical arm 4, connector 41, slide 42, support arm 5, table plate 6, vertical slide rail 7, front connecting plate 8, driving screw 9, upper base 91, lower base 92, screw 93, screw slider 94, shift fork 10, pressure rod support structure 11, pressure rod 111, pressure rod support 112, pressure rod slider 113, locking component 114, slide groove pressure plate 115, damping 116, motor 12, roller bearing 13. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0024] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0025] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0026] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0027] Example 1

[0028] like Figure 1-3As shown, an electric lifting and unfolding mechanism for a car table comprises a back panel 1, a left slide panel 2 with a curved slide panel, a right slide panel 3 with a curved slide panel, an upright arm 4, a support arm 5, a table panel 6, a vertical slide rail 7, a front connecting plate 8, a driving screw rod 9, a shift fork 10 and a pressure rod support structure 11, wherein the left slide panel 2 and the right slide panel 3 are respectively fixed to the left and right sides of the front end of the back panel 1, and the vertical slide rails 7 are respectively fixed on the inner sides of the left slide panel 2 and the right slide panel 3, the driving screw rod 9 is arranged on the back panel 1 between the left slide panel 2 and the right slide panel 3, and the driving end of the driving screw rod 9 is connected to the motor 12 and driven by the motor 12, the left and right ends of the upright arm 4 are respectively connected to the left and right vertical slide rails 7 through sliders, and can move up and down along the vertical slide rails 7 The table 6 is connected to the support arm 5 through a horizontal slide rail. The front end of the left and right slide plates 2 and 3 are connected to the curved groove of the left slide plate 2 and the other end is fixed to the right slide plate 3. The table 6 is connected to the support arm 5 through a horizontal slide rail. The front end of the left and right slide plates 2 and 3 are installed with a front connecting plate 8. A pressure rod support structure 11 is provided between the support arm 5 and the upright arm 4. One end of the front connecting plate 8 is fixed to the left slide plate 2, and the other end is fixed to the right slide plate 3.

[0029] The pressure rod support structure 11 includes a pressure rod 111, a pressure rod support 112 and a pressure rod slider 113; wherein the pressure rod support 112 is fixed at the bottom of the support arm 5, and the pressure rod slider 113 is connected to the slide groove 42 on the upright arm 4, so that the pressure rod slider 113 can slide up and down along the upright arm 4, and one end of the pressure rod 111 is hinged to the pressure rod support 112, and the other end is hinged to the pressure rod slider 113.

[0030] The compression rod support structure 11 further includes a damper 116, wherein the damper 116 includes a damper gear and a damper rack, wherein the damper rack is fixed in the slide groove 42 of the upright arm 4, and the damper gear is mounted on the back of the compression rod slider 113, and the damper gear and the damper rack cooperate to form the damper 116. When the compression rod slider 113 slides up and down in the slide groove 42, it moves with the damper gear and meshes with the damper rack in the fixed slide groove 42.

[0031] The pressure rod support structure 11 also includes a slide groove pressure plate 115, wherein a slide groove pressure plate 115 is fixed on both sides of the upright arm 4 at the front end of the slide groove 42, and the two slide groove pressure plates 115 limit the pressure rod slider 113 assembled in the slide groove 42, so that the pressure rod slider 113 can slide in the slide groove 42.

[0032] The pressure rod support structure 11 further includes a locking component 114 , which is fixed to the lower end of the support arm 5 and located at the left and right ends of the pressure rod 111 , and circular holes for cooperating with the locking component 114 are respectively provided on the left and right sides of the pressure rod 111 .

[0033] The locking component 114 is a ball screw.

[0034] The front connecting plate 8 includes two, which are respectively fixed at the upper and lower ends between the left slide plate 2 and the right slide plate 3, wherein the left end of the front connecting plate 8 is fixed at the front end of the left slide plate 2, and the right end of the front connecting plate 8 is fixed at the front end of the right slide plate 3.

[0035] The driving screw 9 includes an upper base 91, a lower base 92, a screw 93 and a screw slider 94, wherein the upper and lower ends of the screw 93 are respectively connected to the upper base 91 and the lower base 92, the screw slider 94 is sleeved outside the screw 93, and the driving shaft of the motor 12 is connected to the bottom of the screw 93 passing through the lower base 92 through a coupling.

[0036] When the motor 12 drives the upright arm 4 to move upward by driving the screw rod 9, the table top 6 is unfolded, and when the table top 6 is unfolded to the point where the plane where the table top 6 is located is 90 degrees to the vertical plane, the roller bearing 13 moves to the uppermost end of the curved slide groove, and the locking component 114 fits into the circular hole of the corresponding pressure rod 111.

[0037] The curved chutes on the left chute plate 2 and the right chute plate 3 have the same shape and size, and both include an arc segment and a vertical segment, wherein the arc segment is located above the vertical segment.

[0038] When in use, the process of opening the table top 6 is as follows: the motor 12 drives the upright arm 4 to move upward through the screw slider 94, and the two ends of the upright arm 4 also slide on the vertical slide rail 7 through the slider to maintain the stability of the sliding. The movement of the upright arm 4 causes the support arm 5 to drive the fork 10 to move upward along the vertical section of the curved slide through the roller bearing 13. When the fork 10 moves to the arc section of the curved slide, the table top 6 gradually opens upward under the drive of the support arm 5 until the fork 10 moves to the top of the arc section of the curved slide, and the table top 6 unfolds to the plane where the table top 6 is located and the vertical plane is 90°. During this process, the pressure rod 111 slides downward in the slide groove along with the pressure rod slider 113.

[0039] The process of closing the table panel 6 only requires the motor 12 to run in reverse, driving the upright arm 4 to move downward, and then the support arm 5 drives the fork 10 to move downward along the arc section of the curved slide through the roller bearing 13. When the fork 10 moves to the vertical section of the curved slide, the table panel 6 is gradually closed downward under the drive of the support arm 5 until the fork 10 moves to the bottom of the vertical section of the curved slide. The table panel 6 is closed to the plane where the table panel 6 is located and the vertical plane is 1°. During this process, the pressure rod 111 slides upward in the slide groove along with the pressure rod slider 113. As the table panel 6 gradually closes, the locking parts 114 at both ends of the pressure rod support 112 are pressed into the corresponding circular holes on the side of the pressure rod 111.

[0040] The present invention is driven by a single motor 12, and simultaneously realizes the two actions of linear lifting and unfolding of the table top 6. The table top 6 can be opened electrically when in use and can be hidden when not in use, taking up little space and having better intelligent and automated effects.

[0041] Example 2

[0042] The left and right slide plates 2 and 3 are fixedly installed on the back plate 1. Vertical slide rails 7 are installed on the left and right slide plates 2 and 3. The two ends of the upright arm 4 are respectively connected to the sliders on the left and right vertical slide rails 7. A driving screw 9 is installed in the middle of the back plate 1. The motor 12 drives the screw 93. The screw slider 94 on the driving screw 9 is connected to the upright arm 4 through a connecting piece, driving the upright arm 4 to realize the up and down lifting and lowering motion trajectory. The upright arm 4 and the support arm 5 are hinged through a rotary shaft. The left and right sides of the rotating shaft end of the support arm 5 are fixed with a shift fork 10. The shift fork 10 is equipped with a roller bearing 13. The roller bearing 13 rolls along the curve in the curved slide. The table board 6 is connected to the support arm 5 through a horizontal slide rail, and a front connecting plate 8 is installed at the front end of the curved slide.

[0043] When the motor 12 is driven, the lead screw slider 94 moves, causing the upright arm 4 and the support arm 5 to drive the table top 6 to simultaneously move up and down linearly. At the same time, the shift fork 10 on the support arm 5 rotates along the trajectory within the curved chute via the roller bearing 13, thereby achieving both the lifting and the unfolding and closing of the table top 6. When the upright arm 4 moves upward, the table top 6 unfolds. When the table top 6 unfolds to the point where the plane of the table top 6 is 90 degrees to the vertical, the roller bearing 13 moves to the uppermost end of the curved chute. When the motor 12 drives the upright arm 4 downward via the lead screw slider 94, the table top 6 moves downward while closing. When the plane of the table top 6 is 1 degree to the vertical, it descends to its lowest point. At this time, the pressure plate slider 113 moves to its lowermost end. During the movement of the table top 6, the pressure plate slider 113 also limits the motion trajectory of the table top 6, ensuring the accurate unfolding angle of the table top 6.

[0044] The linear motion drive of the upright arm 4 is not limited to the lead screw, and belts, connecting rods, etc. that can achieve linear motion are also acceptable.

[0045] The pressure rod support 112 is fixedly connected to the support arm 5, one end of the pressure rod 111 is hinged to the pressure rod support 112, and the other end of the pressure rod 111 is hinged to the pressure rod slider 113. The pressure rod slider 113 is installed in the slide groove 42 of the upright arm 4, and the slide groove pressure plate 115 is screwed to the upright arm 4 by bolts. The pressure rod slider 113 can slide in the slide groove 42 formed by the upright arm 4 and the slide groove pressure plate 115. A damping gear is installed on the back of the pressure rod slider 113, and the damping rack is installed with the upright arm 4. The damping gear and the rack cooperate to form a damper 116. When the table board 6 is unfolded, the pressure rod 111 drives the pressure rod slider 113 to move up and down by pivoting, and the damping 116 has a buffering effect. Increasing the pressure rod support structure can increase the rigidity of the table board 6 when in use.

[0046] The table top 6 can be hidden to meet the needs of use in different situations; it opens smoothly; the opening and retracting actions are all driven by a motor and rely on electricity for operation, with a fast action response speed.

[0047] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the scope of protection of the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention within the technical scope disclosed by the present invention. These simple variations all fall within the scope of protection of the present invention.

[0048] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0049] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. An electric lifting and unfolding mechanism for a car table, characterized in that The invention comprises a back plate (1), a left slide plate (2) with a curved slide, a right slide plate (3) with a curved slide, an upright arm (4), a support arm (5), a table plate (6), a vertical slide rail (7), a front connecting plate (8), a driving screw rod (9), a shift fork (10), a motor (12) and a pressure rod support structure (11), wherein the left slide plate (2) and the right slide plate (3) are respectively fixed on the left and right sides of the front end of the back plate (1), and the vertical slide rail (7) is respectively fixed on the inner side of the left slide plate (2) and the right slide plate (3), the driving screw rod (9) is arranged on the back plate (1) between the left slide plate (2) and the right slide plate (3), and the driving end of the driving screw rod (9) is connected to the motor (12) and driven by the motor (12), the upright arm (4 ) are connected to the left and right vertical slide rails (7) through sliders respectively, and can slide up and down along the vertical slide rails (7), and the rear end surface of the upright arm (4) is connected to the screw slider on the driving screw (9) through a connecting piece, the top of the upright arm (4) and the rear end of the support arm (5) are hinged through a rotary shaft, and the left and right sides of the rear end of the bottom of the support arm (5) are respectively fixed with a shift fork (10), and the outside of the shift fork (10) is connected to the corresponding curved slide groove through a roller bearing (13), the table board (6) is connected to the support arm (5) through a horizontal slide rail, the front ends of the left slide groove plate (2) and the right slide groove plate (3) are installed with a front connecting plate (8), and a pressure rod support structure (11) is provided between the support arm (5) and the upright arm (4); The pressure rod support structure (11) includes a pressure rod (111), a pressure rod support (112) and a pressure rod slider (113); wherein the pressure rod support (112) is fixed to the bottom of the support arm (5), and the pressure rod slider (113) is connected to the slide groove (42) on the upright arm (4) so ​​that the pressure rod slider (113) can slide up and down along the upright arm (4); one end of the pressure rod (111) is hinged to the pressure rod support (112), and the other end is hinged to the pressure rod slider (113); The pressure rod support structure (11) further includes a damper (116), wherein the damper (116) includes a damper gear and a damper rack, wherein the damper rack is fixed in the slide groove (42) of the upright arm (4), and a damper gear is installed on the back of the pressure rod slider (113), and the damper gear cooperates with the damper rack to form the damper (116); The pressure rod support structure (11) further includes a slide groove pressure plate (115), wherein a slide groove pressure plate (115) is fixed on both sides of the upright arm (4) at the front end of the slide groove (42), and the two slide groove pressure plates (115) limit the pressure rod slider (113) assembled in the slide groove (42), so that the pressure rod slider (113) can slide in the slide groove (42); The pressure rod support structure (11) further includes a locking component (114), which is fixed to the lower end of the support arm (5) and is located at the left and right ends of the pressure rod (111), and the left and right sides of the pressure rod (111) are respectively provided with circular holes for cooperating with the locking component (114); The driving screw (9) comprises an upper base (91), a lower base (92), a screw (93) and a screw slider (94), wherein the upper and lower ends of the screw (93) are respectively connected to the upper base (91) and the lower base (92), the screw slider (94) is sleeved outside the screw (93), and the driving shaft of the motor (12) is connected to the bottom of the screw (93) passing through the lower base (92) through a coupling.

2. The electric lifting and unfolding mechanism of a car table according to claim 1 is characterized in that The locking component (114) is a ball screw.

3. The electric lifting and unfolding mechanism of a car table according to claim 2, characterized in that The front connecting plate (8) includes two, which are respectively fixed at the upper and lower ends between the left slide plate (2) and the right slide plate (3), wherein the left end of the front connecting plate (8) is fixed to the front end of the left slide plate (2), and the right end of the front connecting plate (8) is fixed to the front end of the right slide plate (3).

4. The electric lifting and unfolding mechanism for a car table according to claim 3 is characterized in that When the motor (12) drives the upright arm (4) to move upward by driving the screw rod (9), the table top (6) is unfolded, and when the table top (6) is unfolded to the point where the plane of the table top (6) is 90 degrees to the vertical plane, the roller bearing (13) moves to the uppermost end of the curved slide, and the locking component (114) is engaged in the circular hole of the corresponding pressure rod (111).

5. The electric lifting and unfolding mechanism for a car table according to claim 4, characterized in that The curved chutes on the left chute plate (2) and the right chute plate (3) have the same shape and size, and both include an arc segment and a vertical segment, wherein the arc segment is located above the vertical segment.

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