A multi-dimensionally adjustable rear table for a car

Abstract

The present invention discloses a multi-dimensionally adjustable rear table for a car, which relates to the technical field of car seats. The present invention comprises a mounting module, a table body, and a connecting rod assembly. By arranging an adjustment slider on the connecting rod of the connecting rod assembly and arranging a positioning block at a corresponding position of the table connecting rod base, the adjustment slider has an exposed sliding operating portion and a wedge-shaped portion arranged toward the positioning block. The wedge-shaped portion moves with the displacement of the sliding operating portion. The wedge-shaped portion can abut against the positioning block at different positions to achieve a change in the angle between the unfolded table body and the connecting rod. At the same time, by arranging a sliding portion and a guide rail between the table connecting rod base and the table body, the table connecting rod base and the table body can be relatively displaced, thereby achieving the table after unfolding to freely extend and retract at different distances to adjust the distance between the table and the car table and chair, ultimately achieving safe, stable, and convenient table adjustment, and providing a comfortable car rear table use experience.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile seats, and in particular to a multi-dimensionally adjustable rear tabletop for an automobile. Background Art

[0002] Car seatback tray tables are extremely practical in-car accessories. Installed behind the front seats, they not only provide passengers with additional work or dining space, but can also be used to store food, phones, laptops, and other items. The basic function of a tray table is that when not in use, the tray table folds parallel to the car seat back using a linkage assembly. When in use, the tray table unfolds horizontally, facing the rear passengers. These tray tables are typically installed on the back of the front seat either pre-installed at the factory or as a retrofit.

[0003] The backrest angle of the front seats of a car can be adjusted to make the riding experience in the front row more comfortable. For this reason, the angle of the small table in the back row will also change when it is unfolded, so that it cannot maintain its original horizontal state. Chinese patent application CN118683425A discloses an angle-adjustable small table for car seats, and discloses technical features. A control dial is provided on the small table. By rotating the control dial, the angle control block is driven through the control link and the angle control slider, so that the angle control block is connected to the upper connecting rod bracket or the lower connecting rod bracket, thereby adjusting the angle of the small table. This solution can only adjust the angle of the small table, and the structure is complex, and it cannot meet the adjustment needs of other dimensions of the small table.

[0004] When the tray table is unfolded, the distance between it and the rear passengers is usually fixed and preset to a comfortable distance. However, tray tables installed as a late-installation method often don't adapt well to the differences in rear-seat space between different cars and fail to achieve the preset comfortable distance. Furthermore, when the tray table's angle is adjusted, the control dial, control linkage, angle control slider, and angle control block are all located inside the tray table, making it impossible to adjust the position in other dimensions.

[0005] It can be seen from this that the existing technology has the problem that it is difficult to adjust the small table in the rear seats in multiple dimensions. Summary of the Invention

[0006] In order to solve the problems existing in the prior art, the main purpose of the present invention is to provide a multi-dimensionally adjustable rear table for a car, which can simultaneously realize the angle adjustment of the table when unfolded and the distance adjustment from the rear passengers when unfolded, and at the same time has convenient and safe adjustment operation, and the small table is stable to use after adjustment.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A multi-dimensionally adjustable rear table for a car comprises a mounting module, a table body, and a connecting rod assembly, wherein the table body is connected to the mounting module via the connecting rod assembly, wherein the connecting rod assembly comprises at least one connecting rod, one end of which is hinged to a table connecting rod base;

[0009] The connecting rod is provided with an adjustment slider, and the adjustment slider is configured with a sliding operation portion exposed on the connecting rod. The adjustment slider is provided with a wedge-shaped portion on the side facing the table plate connecting rod base, and a positioning block is provided on the table plate connecting rod base. The wedge-shaped portion and the positioning block cooperate with each other so that as the sliding operation portion moves, the wedge-shaped portion will abut against the positioning block at different positions, thereby correspondingly changing the distance between the connecting rod and the positioning block;

[0010] A sliding portion is provided at the bottom of the table top connecting rod base, the table top body is fixedly connected to a guide rail, and the sliding portion is relatively displaceably provided within the guide rail.

[0011] Preferably, the sliding portion includes a sliding base, a ball, a brake block and an elastic member; the sliding base is provided with a retaining hole, and the ball is rollably disposed in the retaining hole; the ball and the guide rail are in abutment with each other to enable relative displacement of the sliding portion and the guide rail;

[0012] The brake block is slidably arranged on the sliding base in a vertical direction relative to the guide rail, and the two ends of the elastic member are respectively arranged between the sliding parts of the brake block to push the brake block to abut against the inner wall of the guide rail.

[0013] Preferably, the guide rail is provided with a base groove for cooperating with the displacement of the sliding base, and wedge-shaped protrusions are arranged on both sides of the sliding base. The two sides of the base groove are configured as wedge-shaped grooves, and the wedge-shaped protrusions of the sliding base are loosely matched with the wedge-shaped grooves. The end of the brake block is configured as a wedge shape that cooperates with the wedge-shaped groove.

[0014] Preferably, the wedge-shaped protrusion of the sliding base is provided with a retaining hole, the ball is rollably arranged in the retaining hole, and the upper and lower sides of the wedge-shaped groove are provided with ball grooves, and the ball abuts in the ball grooves;

[0015] At least two balls are provided, and the sliding base is respectively provided with the balls in the front and rear directions along the guide rail; the brake block is provided at the bottom of the sliding base and is alternately provided between the balls at the front and rear sides.

[0016] Preferably, the table top body also includes a locking block and a limiting vertical plate; the limiting vertical plate is arranged on the table top body parallel to the guide rail and located on one side of the guide rail, the locking block is fixedly connected to the table top connecting rod base and is located above the limiting vertical plate, and the locking block is elastically and integrally connected to one side of the limiting vertical plate with a locking buckle, and the limiting vertical plate is provided with a limiting groove for limiting the displacement of the locking buckle, and a sliding groove for allowing the locking buckle to slide.

[0017] Preferably, the sliding groove of the limiting vertical plate is arranged in the middle, at least two limiting grooves are arranged on the side of the limiting vertical plate away from the installation module, and one limiting groove is arranged on the side of the limiting vertical plate close to the installation module;

[0018] At least two limiting vertical plates are provided, the limiting vertical plates are parallel to each other, and the width of the locking buckle matches the overall width of the limiting vertical plates;

[0019] The table top body includes a bottom plate and a top plate. The guide rail and the limit vertical plate are fixedly arranged on the bottom plate. The bottom plate and the top plate are enclosed to form an inner cavity. The table top connecting rod base and the sliding part are located in the inner cavity.

[0020] Preferably, a groove body is provided inside the wedge-shaped portion and is open toward one side of the table board body, and a wedge-shaped block made of elastic material is provided inside the groove body;

[0021] The wedge-shaped portion of the adjusting slider and the wedge-shaped block are respectively configured with at least two tooth grooves on the side facing the table top connecting rod base, and the top end of the positioning block is configured as a tip, and the tip of the positioning block is fitted into the tooth groove of the adjusting slider.

[0022] Preferably, the connecting rod is provided with a groove open to one side, and the connecting rod is provided with a cover plate, and the groove of the connecting rod cooperates with the cover plate to form an inner cavity, a strip opening and a through-opening; the adjusting slider is provided with a neck connecting the sliding operating part and the wedge-shaped part, and the neck can be linearly slidably arranged in the strip opening; the positioning block can extend from the through-opening to the interior of the inner cavity.

[0023] Preferably, the connecting rod assembly is configured with two groups, each group of the connecting rod assembly is respectively configured with an upper connecting rod and a lower connecting rod, the mounting module is configured as a back panel body, the two ends of the upper connecting rod are respectively hinged to the upper side of the back panel body and the rear side of the table panel body, the two ends of the upper connecting rod are respectively hinged to the lower side of the back panel body and the front side of the table panel body, the upper connecting rod and the lower connecting rod are hinged on the same rotating surface; the adjusting slider is arranged on the upper connecting rod.

[0024] Preferably, there are two groups of connecting rod assemblies; each group of connecting rod assemblies is respectively provided with an upper connecting rod and a lower connecting rod, so that the table board body is retracted into the accommodating groove after displacement and the table board body is unfolded outside the accommodating groove after displacement; the upper connecting rod of each group of connecting rod assemblies is hinged to the front side of the table board connecting rod base, and the lower connecting rod of each group of connecting rod assemblies is hinged to the rear side of the table board connecting rod base; each table board connecting rod base is respectively provided with two sliding parts, and guide rails are respectively provided on both sides of the table board body, and each table board connecting rod base is correspondingly connected to the guide rails on both sides of the table board body in a displaceable manner through its sliding part.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] (1) The table top of the present invention is provided with an adjusting slider on the connecting rod of the connecting rod assembly and a positioning block at the corresponding position of the table top connecting rod base. The adjusting slider has an exposed sliding operating part and a wedge-shaped part arranged toward the positioning block. The wedge-shaped part moves with the displacement of the sliding operating part. The wedge-shaped part can abut against the positioning block at different positions to achieve the change of the angle between the unfolded table top body and the connecting rod. At the same time, by providing a sliding part and a guide rail between the table top connecting rod base and the table top body, the table top connecting rod base and the table top body can be relatively displaced, so that the unfolded table top can be freely extended and retracted at different distances to adjust the distance between it and the car table and chair, and finally the table top can be adjusted safely, stably and conveniently, providing a comfortable car rear table top use experience.

[0027] (2) Furthermore, the present invention provides a brake block on the sliding portion of the ball bearing, so that the tabletop body maintains its own telescopic position in the absence of a rightward external force, and is not easily moved, thereby achieving adjustable installation and stability without affecting normal use. At the same time, when the tabletop body is subjected to a rightward external force, it can roll and slide, allowing for quick and effortless adjustment of its position.

[0028] (3) Furthermore, the present invention provides a locking block and a limiting plate, so that the tabletop body requires a large push or pull force to move the locking block away from the limiting groove of the limiting plate, thereby ensuring the safety of adjustment. With the multiple limiting grooves of the limiting plate, the tabletop body can be stably fixed in two positions: close to the front row of tables and chairs or away from the front row of seats. In the sliding groove of the limiting plate, the tabletop body can be adjusted to any distance and positioned in conjunction with the brake block.

[0029] The present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the overall three-dimensional structure of a multi-dimensionally adjustable rear table for a car according to an embodiment of the present invention.

[0031] Figure 2 A schematic diagram of a partial three-dimensional structure of a multi-dimensionally adjustable rear table for a car according to an embodiment of the present invention.

[0032] Figure 3 A schematic diagram of a partially dispersed three-dimensional structure of a multi-dimensionally adjustable rear table for a car according to an embodiment of the present invention.

[0033] Figure 4 A schematic diagram of a partial three-dimensional structure of a multi-dimensionally adjustable rear table of a car in a brake maintenance state according to an embodiment of the present invention.

[0034] Figure 5 A schematic diagram of the partial three-dimensional structure of a multi-dimensionally adjustable rear table of a car in a brake-released state according to an embodiment of the present invention.

[0035] Figure 6 A schematic diagram of the partial three-dimensional structure of a multi-dimensionally adjustable rear table of a car in a first distance adjustment state according to an embodiment of the present invention.

[0036] Figure 7 A schematic diagram of the partial three-dimensional structure of a multi-dimensionally adjustable rear table of a car in a second distance adjustment state according to an embodiment of the present invention.

[0037] Figure 8 A schematic diagram of the partial three-dimensional structure of a multi-dimensionally adjustable rear table of a car in a third distance adjustment state according to an embodiment of the present invention.

[0038] Figure 9 A schematic diagram of the partial three-dimensional structure of a multi-dimensionally adjustable rear table of a car in a first angle adjustment state according to an embodiment of the present invention.

[0039] Figure 10 A schematic diagram of the partial three-dimensional structure of a multi-dimensionally adjustable rear table of a car in a second angle adjustment state according to an embodiment of the present invention.

[0040] Figure 11 A schematic diagram of the partial three-dimensional structure of a multi-dimensionally adjustable rear table of a car in a third angle adjustment state according to an embodiment of the present invention.

[0041] Figure numerals: 10, back panel body; 20, connecting rod assembly; 21, upper connecting rod; 22, lower connecting rod; 30, table top body; 31, positioning block; 32, table top connecting rod base; 33, panel; 34, bottom plate; 40, sliding part; 41, sliding base; 42, ball bearing; 43, brake block; 44, elastic member; 50, guide rail; 51, base groove; 52, ball groove; 53, wedge groove; 60, locking block; 61, locking buckle; 62, limiting vertical plate; 70, adjusting slider; 71, sliding operating part; 72, wedge-shaped part; 73, wedge block; 74, neck; 75, cover plate. DETAILED DESCRIPTION

[0042] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the specific embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0043] like Figures 1 to 11 As shown in FIG, a multi-dimensionally adjustable rear table for a car according to an embodiment of the present invention. Figure 1The small table on the back of a car seat includes a mounting module, a connecting rod assembly 20 and a table body 30. The mounting module is used to be fixed to the back of the car seat and provide a space for the table body 30 to be fixed and installed. In this embodiment, the mounting module is configured as a back panel body 10. In other embodiments, it can also be a simple mounting bracket. The back panel body 10 can be configured in the shape of a car seat back panel, making the car seat more beautiful. At the same time, it can accommodate the table body 30 in conjunction with the connecting rod assembly 20. The table body 30 is used to provide users with the function of placing items. It is connected to the back panel body 10 through the connecting rod assembly 20. In order to make the table body 30 more firm and stable, the connecting rod assembly 20 is usually configured with two groups. Each group of connecting rod assemblies 20 is respectively configured with two connecting rods, namely an upper connecting rod 21 and a lower connecting rod 22. The table body 30 includes a panel 33 and a bottom plate 34. A table connecting rod base 32 is provided on each side of the bottom plate 34 of the table body 30. The two linkage assemblies 20 are hingedly connected to the tabletop linkage bases 32 on either side. The upper linkage 21 and the lower linkage 22 cooperate with each other. When the upper linkage 21 and the lower linkage 22 swing to the lower limit, the tabletop body 30 is displaced and retracted into the accommodating groove. When the upper linkage 21 and the lower linkage 22 swing to the upper limit, the upper linkage 21 and the lower linkage 22 abut against each other, causing the tabletop body 30 to be displaced and extended out of the accommodating groove, maintaining a horizontal position facing the passengers.

[0044] To achieve multi-dimensional adjustment, the upper links 21 of the link assemblies 20 on either side are each provided with an adjustment slider 70. Positioning blocks 31 are each provided on the tabletop link base 32 at the corresponding position of the link assemblies 20 on either side. The adjustment slider 70 is configured with a sliding operating portion 71 exposed from the upper link 21. A wedge-shaped portion 72 is provided on the side of the adjustment slider 70 facing the tabletop link base 32. The wedge-shaped portion 72 cooperates with the positioning block 31 so that as the sliding operating portion 71 moves, the wedge-shaped portion 72 contacts the positioning block 31 at different positions, thereby correspondingly changing the distance between the upper link 21 and the positioning block 31.

[0045] refer to Figures 9 to 11Therefore, when adjusting the small table on the back of the car seat, the user holds the table body 30 with both hands, places his fingers on the exposed sliding operating part 71, and moves the sliding operating part 71 forward or backward. The wedge-shaped part 72 will change position along with the sliding operating part 71, and the positions of the wedge-shaped part 72 with different thicknesses will abut against the positioning block 31. When the wedge-shaped part 72 moves backward, the thicker position will abut against the positioning block 31. When the wedge-shaped part 72 moves forward, the thinner position will abut against the positioning block 31. The thicker the position abutting against the positioning block 31, the farther the distance between the upper connecting rod 21 and the positioning block 31, and the larger the minimum angle between the upper connecting rod 21 and the table connecting rod base 32, the more the table body 30 will adjust its position upward relative to the abutment point. Similarly, the thinner the portion abutting the positioning block 31, the closer the upper link 21 is to the positioning block 31, and the smaller the minimum angle between the upper link 21 and the tabletop link base 32. Consequently, the tabletop body 30 is adjusted downward relative to the abutment point. During use, the greater the angle of the front seat backrest, the more likely the tabletop body 30 will tilt downward if not adjusted. Therefore, the sliding operating portion 71 needs to be moved rearward, causing the thicker wedge-shaped portion 72 to abut the positioning block 31 and tilt the tabletop body 30 upward, thereby maintaining its horizontal position.

[0046] At the same time, in order to achieve multi-dimensional adjustment, refer to Figure 3 and Figure 3 The bottom of each table top link base 32 is fixedly connected to a sliding portion 40, and guide rails 50 are fixedly connected to both sides of the bottom plate 34 of the table top body 30. The table top link base 32 is displaceably mounted within the guide rails 50 via the sliding portion 40. When the upper link 21 and the lower link 22 swing to the upper limit position, the table top body 30 is unfolded to a horizontal state. The upper link 21, the lower link 22, and the table top link base 32 can maintain the horizontal unfolding posture, while the table top body 30 and the guide rails 50 can be operated by the user to move toward or away from the front seats, respectively, thereby correspondingly reducing or increasing the distance between the table top body 30 and the rear passengers.

[0047] Therefore, in the present invention, the table top connecting rod base 32 and the table top body 30 can slide relative to each other, so that the unfolded table top can freely extend and retract at different distances to adjust the distance between it and the car table and chair, so that the rear passengers can adjust the appropriate table top distance, and the rear passengers can use the table top comfortably in the rear space of cars of different sizes.

[0048] In summary, in this embodiment, the angle-adjusting slider 70 is disposed on the upper connecting rod 21, and the matching positioning block 31 is disposed on the tabletop connecting rod base 32, thereby adjusting the minimum angle between the tabletop connecting rod base 32 and the upper connecting rod 21, thereby achieving angle adjustment of the tabletop body 30 in the unfolded state. At the same time, a sliding portion 40 is disposed below the tabletop connecting rod base 32, and a guide rail 50 is disposed on the tabletop body 30. Through the cooperation of the sliding portion 40 and the guide rail 50, the tabletop body 30 can be telescopically adjusted relative to the tabletop connecting rod base 32 without changing the angle between the tabletop body 30 and the tabletop connecting rod base 32. Telescopic adjustment and angle adjustment do not affect each other, and are highly integrated into components such as the connecting rod and the tabletop connecting rod base 32.

[0049] refer to Figure 4 and Figure 5 In order to make the table top connecting rod base 32 and the table top body 30 move smoothly, in this embodiment, specifically, the sliding part 40 includes a ball 42, a sliding base 41, a brake block 43 and an elastic member 44. The sliding base 41 is provided with a retaining hole, and the ball 42 is rollably arranged in the retaining hole. The ball 42 and the guide rail 50 are in abutment with each other to make the sliding part 40 and the guide rail 50 move relative to each other. The brake block 43 is slidably arranged on the sliding base 41 in a vertical direction relative to the guide rail 50, and the two ends of the elastic member 44 are respectively arranged between the sliding part 40 of the brake block 43 to push the brake block 43 to abut against the inner wall of the guide rail 50.

[0050] It is worth noting that, in the absence of external force, the brake block 43 abuts the right inner wall of the guide rail 50 under the elastic force of the elastic member 44. Simultaneously, the elastic force of the elastic member 44 also pushes the sliding base 41 to abut the left inner wall of the guide rail 50. The increased overall width of the sliding base 41 causes the brake block 43 and the sliding base 41 to abut the guide rail 50 simultaneously, generating a large frictional force between the sliding portion 40 and the guide rail 50, thereby ineffectively preventing the rolling displacement of the ball 42.

[0051] When a rightward thrust is applied to the table top body 30, the brake block 43 is displaced toward the inside of the sliding base 41, and the overall width of the sliding base 41 is reduced, so that a gap is maintained between the sliding base 41 and the guide rail 50, so that the friction between the sliding part 40 and the guide rail 50 is less, and the sliding part 40 rolls and displaces on the guide rail 50 through the ball bearing 42.

[0052] Thus, the present invention provides a brake block 43 on the sliding portion 40 of the ball bearing 42, thereby allowing the tabletop body 30 to maintain its telescopic position and resist movement in the absence of a rightward external force, thereby enabling telescopic adjustment to any distance within a range. Furthermore, when a rightward external force is applied to the tabletop body 30, it can roll and slide, allowing for quick and effortless position adjustment.

[0053] refer to Figure 4 and Figure 5 Specifically, in this embodiment, the guide rail 50 is provided with a base groove 51 that cooperates with the displacement of the sliding base 41, ensuring smooth displacement without obstruction or contact. The sliding base 41 is provided with wedge-shaped protrusions on both sides, and wedge-shaped grooves 53 are provided on both sides of the base groove 51. The wedge-shaped protrusions of the sliding base 41 are loosely fitted with the wedge-shaped grooves 53, and the ends of the brake blocks 43 are configured in a wedge shape that fits with the wedge-shaped grooves 53. In the absence of external force, the brake blocks 43 act upon the wedge-shaped protrusions and the wedge-shaped grooves 53, generating significant friction. Under the action of external force, a gap is maintained between the wedge-shaped protrusions and the wedge-shaped grooves 53, leaving only the brake blocks 43 in contact with the guide rail 50, significantly reducing friction and enabling sliding with the aid of the balls 42.

[0054] refer to Figure 4 and Figure 5 Specifically, in this embodiment, the wedge-shaped protrusion of the sliding base 41 is provided with a retaining hole, and the ball 42 is rollably disposed in the retaining hole. The upper and lower sides of the wedge-shaped groove 53 are provided with ball grooves 52, and the ball 42 abuts against the ball grooves 52. The ball 42 is disposed on the wedge-shaped protrusion, extending outside the retaining hole and contacting the ball groove 52. The retaining hole retains the ball 42 in the front-to-back direction, and a certain gap can be set between the ball 42 and the left-to-right direction, so that the sliding base 41 can be displaced in the left-to-right direction, realizing the automatic braking function. The ball grooves 52 on the upper and lower sides allow the ball 42 to withstand downward pressure or upward thrust, thereby ensuring that the table top body 30 only moves along the guide rail 50.

[0055] refer to Figure 4 and Figure 5 Specifically, in this embodiment, four ball bearings 42 are provided, with two ball bearings 42 distributed front and rear of the sliding base 41 along the guide rail 50. Brake blocks 43 are provided at the bottom of the sliding base 41 and are alternately arranged between the front and rear ball bearings 42. The presence of ball bearings 42 on both the front and rear sides of the brake blocks 43 facilitates the stability of the displacement of the sliding portion 40 after the brake is released. Each table top link base 32 is provided with two sliding portions 40, so that the table top body 30 can remain stable under downward or upward pressure.

[0056] refer to Figures 5 to 7Specifically, in this embodiment, the tabletop body 30 is further provided with a locking block 60 and a limiting vertical plate 62. The limiting vertical plate 62 is provided on the tabletop body 30 parallel to the guide rail 50 and located on one side of the guide rail 50. The locking block 60 is fixedly connected to the tabletop connecting rod base 32 and located above the limiting vertical plate 62. A locking buckle 61 is elastically and integrally provided on the side of the locking block 60 facing the limiting vertical plate 62. The limiting vertical plate 62 is provided with a limiting groove to limit the displacement of the locking buckle 61, as well as a sliding groove to allow the locking buckle 61 to slide. The sliding groove of the limiting vertical plate 62 is provided in the middle. At least two limiting grooves are provided on the side of the limiting vertical plate 62 away from the back panel body 10, and one limiting groove is provided on the side of the limiting vertical plate 62 close to the back panel body 10.

[0057] It is worth noting that, in the initial state, the locking block 60 is positioned above the first stopper groove on the side away from the back panel body 10, and the locking buckle 61 is secured within the stopper groove. To reduce the distance between the tabletop body 30 and the front passenger seat, the tabletop body 30 is pushed, causing the locking block 60 to move above the second stopper groove on the side away from the back panel body 10, and the locking buckle 61 is secured within the stopper groove, thereby bringing the tabletop body 30 closer to the front passenger seat. To increase the distance between the tabletop body 30 and the front passenger seat, the tabletop body 30 is pushed, causing the locking block 60 to move above the slide groove, and the locking buckle 61 is no longer secured within the slide groove. Under the action of the brake block 43, the tabletop body 30 can remain in any position within the slide groove without a rightward external force. If a rightward external force is applied, the tabletop body 30 can roll and change its position within the slide groove. To adjust the tabletop body 30 to the nearest passenger, the tabletop body 30 is pulled above the stopper groove on the side closer to the back panel body 10, and the locking buckle 61 is secured within the stopper groove.

[0058] It can be seen that in the present invention, it is necessary to apply a force perpendicular to the extension and retraction direction and a force parallel to the extension and retraction direction at the same time. The extension and retraction adjustment operation is ingenious, and safe and stable extension and retraction adjustment of the small table can be achieved.

[0059] refer to Figures 5 to 7 At least two limiting vertical plates 62 are provided, and each limiting vertical plate 62 is parallel to each other. The width of the locking buckle 61 matches the overall width of each limiting vertical plate 62, thereby improving the comprehensive strength of the locking block 60 and the limiting vertical plate 62.

[0060] refer to Figures 5 to 7 The table top body 30 includes a bottom plate 34 and a panel 33. The guide rail 50 and the limiting vertical plate 62 are fixedly arranged on the bottom plate 34. The bottom plate 34 and the panel 33 are enclosed to form an inner cavity. The table top connecting rod base 32 and the sliding part 40 are located in the inner cavity, which makes it more beautiful.

[0061] refer to Figure 3Specifically, in this embodiment, the wedge-shaped portion 72 of the adjustment slider 70 is configured with multiple grooves on the side facing the tabletop body 30. Each groove is distributed along the slope of the bottom of the wedge-shaped portion 72. The top of the positioning block 31 is configured as a pointed tip, and the tip of the positioning block 31 fits into the groove of the adjustment slider 70. As a result, when the adjustment slider 70 is moved, the tip of the positioning block 31 will fit into grooves of different slope heights, and the distance between the upper connecting rod 21 and the positioning block 31 will change accordingly.

[0062] refer to Figure 3 Specifically, in this embodiment, the interior of the wedge-shaped portion 72 is provided with a groove body that is open toward one side of the table board body 30, and a wedge block 73 made of elastic material is provided in the groove body. The wedge block 73 is also provided with teeth and grooves. When in use, the bottom of the wedge block 73 will protrude from the bottom of the wedge-shaped portion 72, and preferentially abut against the tip of the positioning block 31, releasing the elastic force during the contact process, thereby achieving a silent effect.

[0063] refer to Figure 3 Specifically, in this embodiment, the upper connecting rod 21 has an inner cavity with a strip-shaped opening. The adjustment slider 70 has a neck portion 74 connecting the sliding operating portion 71 and the wedge-shaped portion 72. The neck portion 74 is linearly slidable within the strip-shaped opening. The sliding operating portion 71 is engaged with the upper surface of the strip-shaped opening, and the top of the wedge-shaped portion 72 is engaged with the lower surface of the strip-shaped opening, thereby ensuring that the adjustment slider 70 can stably slide linearly along the strip-shaped opening, thereby making the adjustment slider 70 slide more smoothly.

[0064] refer to Figure 3 Specifically, in this embodiment, the wedge-shaped portion 72 is disposed within the inner cavity, so that the wedge-shaped portion 72 is hidden inside the upper connecting rod 21. A through opening is provided at the bottom of the inner cavity, and the positioning block 31 can extend from the through opening into the inner cavity and abut against the wedge-shaped portion 72.

[0065] refer to Figure 3 Specifically, in this embodiment, the sliding operation portion 71 is configured as a longitudinally extending arc-shaped strip, and the upper surface of the sliding operation portion 71 is provided with transversely extending ribs, thereby increasing the friction force of pushing and pulling the adjustment slider 70.

[0066] refer to Figure 3 Specifically, in this embodiment, the upper connecting rod 21 is provided with a groove open to one side and a cover plate 75. The groove of the upper connecting rod 21 and the cover plate 75 cooperate to form an inner cavity, a strip-shaped opening, and a through-hole. The provision of the cover plate 75 facilitates the installation of the adjustable slider 70.

[0067] refer to Figure 3 Specifically, in this embodiment, the side wall of the wedge-shaped portion 72 is provided with a convex strip, which abuts against the inner cavity side wall of the upper connecting rod 21. The provision of the convex strip can reduce the sliding friction of the adjusting slider 70.

[0068] refer to Figures 9 to 11 Specifically, in this embodiment, the positioning block 31 is configured with an abutment portion and a foot. Two feet are provided, each foot being fixedly connected to the tabletop body 30 and distributed front and back along the hinged rotation surface. The two feet of the positioning block 31 can better support the upper connecting rod 21. The feet are distributed front and back along the hinged rotation surface, so that the swing plane of the upper connecting rod 21 can better transmit the supporting force to the tabletop body 30.

[0069] The above embodiments primarily illustrate the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A multi-dimensionally adjustable rear table for a car, comprising a mounting module, a table body (30) and a connecting rod assembly (20), wherein the table body (30) is connected to the mounting module via the connecting rod assembly (20), characterized in that: The connecting rod assembly (20) includes at least one connecting rod, one end of which is hinged to the table top connecting rod base (32); The connecting rod is provided with an adjusting slider (70), and the adjusting slider (70) is provided with a sliding operation part (71) exposed on the connecting rod. The adjusting slider (70) is provided with a wedge-shaped part (72) on the side facing the table plate connecting rod base (32), and a positioning block (31) is provided on the table plate connecting rod base (32). The wedge-shaped part (72) cooperates with the positioning block (31) so that the wedge-shaped part (72) will abut against the positioning block (31) at different positions as the sliding operation part (71) moves, and the distance between the connecting rod and the positioning block (31) is changed accordingly. A sliding portion (40) is provided at the bottom of the table top connecting rod base (32), the table top body (30) is fixedly connected to a guide rail (50), and the sliding portion (40) is relatively displaceably provided within the guide rail (50).

2. The multi-dimensionally adjustable rear table for a car according to claim 1, characterized in that: The sliding portion (40) includes a sliding base (41), a ball (42), a brake block (43) and an elastic member (44); the sliding base (41) is provided with a retaining hole, and the ball (42) is rollably disposed in the retaining hole; the ball (42) and the guide rail (50) are in abutment with each other to enable the sliding portion (40) and the guide rail (50) to move relative to each other; The brake block (43) is slidably arranged on the sliding base (41) in a vertical direction relative to the guide rail (50), and the two ends of the elastic member (44) are respectively arranged between the sliding portion (40) of the brake block (43) to push the brake block (43) to abut against the inner wall of the guide rail (50).

3. The multi-dimensionally adjustable rear table for a car according to claim 2, characterized in that: The guide rail (50) is provided with a base groove (51) for cooperating with the displacement of the sliding base (41), wedge-shaped protrusions are arranged on both sides of the sliding base (41), and wedge-shaped grooves (53) are arranged on both sides of the base groove (51), the wedge-shaped protrusions of the sliding base (41) are clearance-matched with the wedge-shaped grooves (53), and the end of the brake block (43) is configured in a wedge shape that cooperates with the wedge-shaped groove (53).

4. The multi-dimensionally adjustable rear table for a car according to claim 3, characterized in that: The wedge-shaped protrusion of the sliding base (41) is provided with a retaining hole, and the ball (42) is rollably arranged in the retaining hole. The upper and lower sides of the wedge-shaped groove (53) are provided with ball grooves (52), and the ball (42) abuts against the ball grooves (52); At least two balls (42) are provided, and the balls (42) are respectively distributed on the front and rear sides of the sliding base (41) along the guide rail (50); the brake block (43) is provided at the bottom of the sliding base (41) and is alternately provided between the balls (42) on the front and rear sides.

5. The multi-dimensionally adjustable rear table for a car according to claim 1, characterized in that: The table top body (30) further includes a locking block (60) and a limiting vertical plate (62); the limiting vertical plate (62) is arranged on the table top body (30) in parallel with the guide rail (50) and located on one side of the guide rail (50); the locking block (60) is fixedly connected to the table top connecting rod base (32) and is located above the limiting vertical plate (62); the locking block (60) is elastically and integrally connected to one side of the limiting vertical plate (62) with a locking buckle (61); the limiting vertical plate (62) is provided with a limiting groove for limiting the displacement of the locking buckle (61), and a sliding groove for allowing the locking buckle (61) to slide.

6. The multi-dimensionally adjustable rear table for a car according to claim 5, characterized in that: The sliding groove of the limiting vertical plate (62) is arranged in the middle, the limiting vertical plate (62) is provided with at least two limiting grooves on the side away from the installation module, and the limiting vertical plate (62) is provided with one limiting groove on the side close to the installation module; At least two of the limiting vertical plates (62) are provided, and the limiting vertical plates (62) are parallel to each other, and the width of the locking buckle (61) matches the overall width of the limiting vertical plates (62); The table top body (30) includes a bottom plate (34) and a panel (33); the guide rail (50) and the limiting vertical plate (62) are fixedly arranged on the bottom plate (34); the bottom plate (34) and the panel (33) enclose an inner cavity; the table top connecting rod base (32) and the sliding part (40) are located within the inner cavity.

7. The multi-dimensionally adjustable rear table for a car according to claim 1, characterized in that: A groove body is provided inside the wedge-shaped portion (72) and is open toward one side of the table board body (30), and a wedge-shaped block (73) made of elastic material is provided inside the groove body; The wedge-shaped portion (72) and the wedge-shaped block (73) of the adjusting slider (70) are respectively provided with at least two tooth grooves on the side facing the table top connecting rod base (32), and the top end of the positioning block (31) is configured as a tip, and the tip of the positioning block (31) is fitted into the tooth groove of the adjusting slider (70).

8. The multi-dimensionally adjustable rear table for a car according to claim 7, characterized in that: The connecting rod is provided with a groove open to one side, and the connecting rod is provided with a cover plate (75), and the groove of the connecting rod and the cover plate (75) cooperate to form an inner cavity, a strip opening and a through opening; the adjusting slider (70) is provided with a neck (74) connecting the sliding operation part (71) and the wedge-shaped part (72), and the neck (74) can be linearly slidably arranged in the strip opening; the positioning block (31) can extend from the through opening to the interior of the inner cavity.

9. The multi-dimensionally adjustable rear table for a car according to claim 1, characterized in that: The connecting rod assembly (20) is configured in two groups, and each group of the connecting rod assembly (20) is respectively configured with an upper connecting rod (21) and a lower connecting rod (22); the mounting module is configured as a back panel body (10); the two ends of the upper connecting rod (21) are respectively hinged to the upper side of the back panel body (10) and the rear side of the table panel connecting rod base (32); the two ends of the lower connecting rod (22) are respectively hinged to the lower side of the back panel body (10) and the front side of the table panel connecting rod base (32); the upper connecting rod (21) and the lower connecting rod (22) are hinged on the same rotating surface; the adjusting slider (70) is arranged on the upper connecting rod (21).

10. The multi-dimensionally adjustable rear table for a car according to claim 1, characterized in that: The connecting rod assembly (20) is provided with two groups; each group of the connecting rod assembly (20) is provided with an upper connecting rod (21) and a lower connecting rod (22), so that the table board body (30) can be retracted into the accommodating groove after displacement and the table board body (30) can be unfolded outside the accommodating groove after displacement; the upper connecting rod (21) of each group of the connecting rod assembly (20) is hinged to the rear side of the table board connecting rod base (32), and the lower connecting rod (22) of each group of the connecting rod assembly (20) is hinged to the front side of the table board connecting rod base (32); each table board connecting rod base (32) is provided with two sliding parts (40), and guide rails (50) are provided on both sides of the table board body (30), and each table board connecting rod base (32) is displaceably connected to the guide rails (50) on both sides of the table board body (30) through its sliding part (40).

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