Table plate, seat and automobile

Abstract

The utility model discloses a table board, a seat and an automobile. The table board comprises a table board body, a mounting bracket, a connecting rod assembly and a locking assembly, the mounting bracket is used for being fixedly connected with a mounting base body; one end of the connecting rod assembly is pivoted with the mounting bracket, and the other end of the connecting rod assembly is pivoted with the table plate body; the table plate body is provided with a folding position close to the mounting bracket and a maximum unfolding position far away from the mounting bracket; the locking assembly is configured to be used for locking the table plate body in the middle position between the folding position and the maximum unfolding position in the process that the table plate body rotates from the maximum unfolding position to the folding position. The use angle of the table board can be adjusted to meet the use requirements of different positions.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a table top, a seat and a car. Background Art

[0002] A foldable table is provided behind the car seat back, which enriches the functionality of the car seat. The use of the seat back table can provide convenience and comfort for entertainment or office work in the car.

[0003] At present, the seat table refers to a usage state in which it is flipped to the maximum stroke, that is, the seat table has only one usage angle relative to the seat back, but the angle of the seat back is adjustable. When the angle of the seat back is adjusted, the seat table will be in a tilted state as the angle of the seat back changes, resulting in the seat table being unable to be used normally.

[0004] When the table top is installed in other positions, there is also a need to use the table top at different angles in actual applications.

[0005] In view of this, how to improve the table top so that it can achieve angle adjustment is a technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0006] The purpose of the present application is to provide a table top, a chair and a car, wherein the use angle of the table top can be adjusted to meet the use requirements in different positions.

[0007] In order to solve the above technical problems, the present application provides a table top, including a table top body, a mounting bracket, a connecting rod assembly and a locking assembly;

[0008] The mounting bracket is used to be fixedly connected to the mounting base;

[0009] One end of the connecting rod assembly is pivotally connected to the mounting bracket, and the other end of the connecting rod assembly is pivotally connected to the table board body;

[0010] The table board body has a folded position close to the mounting bracket and a maximum unfolded position away from the mounting bracket;

[0011] The locking assembly is configured to lock the table board body at an intermediate position between the folded position and the maximum unfolded position during the process of the table board body rotating from the maximum unfolded position to the folded position.

[0012] In an achievable solution, the connecting rod assembly includes a first connecting shaft and at least one connecting rod component, and the first connecting shaft is pivotally connected to the table board body;

[0013] The connecting rod component includes a first connecting rod and a second connecting rod, one end of the first connecting rod and one end of the second connecting rod are both pivotally connected to the mounting bracket, the other end of the first connecting rod is fixedly connected to the first connecting shaft, and the other end of the second connecting rod is pivotally connected to the table board body;

[0014] The locking assembly is disposed between the table top body and the first connecting shaft.

[0015] In a feasible solution, the connecting rod assembly also includes a second connecting shaft, the second connecting shaft is pivotally connected to the table top body, the other end of the second connecting rod is connected to the second connecting shaft, and the second connecting shaft is arranged parallel to the first connecting shaft.

[0016] In an achievable solution, at least one first support seat is fixedly connected to the table board body, and the first connecting shaft is rotatably disposed through the first support seat;

[0017] And / or, at least one second support base is fixedly connected to the table top body, and the second connecting shaft is rotatably disposed through the second support base.

[0018] In a feasible solution, two mounting seats are fixedly connected to the table top body, and two mounting seats are fixedly connected to the table top body. The mounting seats have a first groove and a second groove, and the two ends of the first connecting axis are respectively located in the two first grooves, and the two ends of the second connecting axis are respectively located in the two second grooves.

[0019] In a feasible solution, the connecting rod assembly includes two connecting rod components, and the two connecting rod components are arranged at intervals along the length direction of the table top body.

[0020] In a feasible solution, the mounting base is a seat back, or a seat armrest, or a cabin interior panel.

[0021] In one feasible solution, the locking assembly includes a ratchet and a pawl; the ratchet can rotate with the connecting rod assembly, and the ratchet and the pawl are configured as follows: when the table top body rotates from the maximum expanded position to the folded position, the ratchet can pass over the pawl, and the pawl can engage with the ratchet teeth of the ratchet to prevent the ratchet from rotating in the direction of the maximum expanded position.

[0022] In one feasible solution, the locking assembly includes a cam and an elastic member, wherein the elastic member is used to apply an elastic force to the pawl to rotate the pawl in a direction of engaging with the ratchet; the cam is capable of rotating to switch between a first position and a second position, when the cam is in the first position, the pawl disengages from the ratchet under the blocking action of the cam, and when the cam is in the second position, the pawl is capable of engaging with the ratchet under the action of the elastic member.

[0023] An embodiment of the present application also provides a seat, comprising a table top installed on a seat back or a seat armrest, wherein the table top is any of the table tops described above.

[0024] An embodiment of the present application also provides a car, including a cockpit, and also including a table board as described above installed in the cockpit, or also including a seat as described above installed in the cockpit.

[0025] The table board provided in the embodiment of the present application can be used for seats, and can also be used for car seats or installed in the cabin of a car; when the table board is needed, the table board body can be opened to the maximum unfolded position, and the locking assembly does not work during the opening to the maximum position. When the angle of the mounting base changes or the angle of the table board body needs to be adjusted according to user needs, the table board body can be rotated from the maximum unfolded position to the direction of the folding position to adjust the table board body to a roughly horizontal state for easy use. At this time, the table board body is in an intermediate position between the maximum unfolded position and the folding position; it can be understood that the table board body can have multiple intermediate positions. After the table board body is rotated from the maximum unfolded position to the direction of the folding position and adjusted to a suitable intermediate position for use, the locking assembly can be used to lock the position of the table board body, that is, to prevent the table board body from continuing to rotate to the maximum unfolded position under the action of gravity, but it does not affect the table board body from continuing to rotate to the folding position under the action of external force, so that the angle of the table board body can be adjusted to adapt to the angle change of the mounting base, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A side view of a table top installed on a mounting base in an embodiment provided in the present application;

[0027] Figure 2 A schematic diagram of position adjustment of a table top in one embodiment provided in the present application;

[0028] Figure 3 A schematic diagram of the structure of a table top in one embodiment provided in the present application;

[0029] Figure 4 for Figure 3 The schematic diagram of the structure of the table top with the lower cover of the table top hidden from another angle;

[0030] Figure 5 for Figure 4 The table top shown is a schematic diagram of the structure after the table top cover is hidden;

[0031] Figure 6 for Figure 4 A schematic diagram of the structure of the connecting rod assembly of the table top shown;

[0032] Figure 7 for Figure 4 A schematic diagram of a partial structure of the area where the locking assembly of the housing is located is hidden;

[0033] Figure 8 It shows the action principle diagram of the locking assembly during the opening process of the table board body;

[0034] Fig. 9 The diagram shows the action principle of the locking assembly when the table top body is adjusted from the maximum unfolded position.

[0035] Description of reference numerals:

[0036] Mounting base 10;

[0037] Table top 20, mounting bracket 21, table top body 22, upper cover 221, avoidance hole 2211, lower cover 222, connecting rod component 23, first connecting rod 231, second connecting rod 232, first connecting shaft 241, second connecting shaft 242, locking assembly 25, ratchet 251, pawl 252, cam 253, outer shell 254, first support seat 261, second support seat 262, mounting seat 27, first groove 271, second groove 272. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] The ordinal numbers such as first and second used in this article are to distinguish different components with the same name, and do not indicate a specific order or a primary and secondary relationship.

[0040] The directional words front, back, left, right, up and down used in this article are defined based on the perspective of the user facing the table when sitting in the vehicle. Taking the car as a reference, the left and right direction is the vehicle width direction, the front and back direction is the vehicle length direction, and the top and bottom direction is the vehicle height direction. It can be understood that the use of directional words is only for the clarity and convenience of describing the technical solution, and does not constitute a limitation on the scope of protection.

[0041] Please refer to Figure 1 and Figure 2 , Figure 1 A side view of a table top installed on a mounting base in an embodiment provided in the present application. Figure 2A schematic diagram of the position adjustment of a table top in an embodiment provided in the present application.

[0042] The table board 20 provided in this embodiment can be installed on the mounting base 10 for user convenience. The mounting base 10 can be a seat, specifically a seat back or a seat armrest. When the table board 20 is installed on the seat back of the seat, it can be convenient for users sitting behind the seat; when the table board 20 is installed on the seat armrest of the seat, it can be convenient for users sitting on the seat. The mounting base 10 can also be other components that require the use of the table board 20, such as the interior trim panel of the car cabin.

[0043] The table top 20 is foldable, and when it is needed, the table top 20 is unfolded. Figure 1 As shown, for the convenience of users, when not in use, the table top 20 can be folded to a position roughly fitting with the mounting base 10 to avoid taking up space.

[0044] Taking the installation of the table top 20 on the seat back of a seat as an example, that is, taking the installation base 10 as the seat back of a seat as an example, the seat back of a seat is usually designed to be angle-adjustable to facilitate the user sitting on the seat to adjust the angle of the seat back as needed, thereby improving the user's riding comfort.

[0045] However, the angle adjustment of the seat back will affect the use state of the table board 20 in the unfolded position. Figure 1 and Figure 2 , Figure 1 The table 20 in the unfolded position is basically kept in a horizontal state, and the user behind the seat can place items (such as cups, food or computers, etc.) on the table 20. Figure 1 Adjust the angle backward to Figure 2 After the table top 20 is in the position shown, it will rotate downward and backward to be in a tilted state. Figure 2 The maximum unfolded position L1 is shown in FIG. , at which time the table top 20 cannot be used normally due to its tilt.

[0046] The table top 20 provided in this embodiment can solve this problem. The angle of the table top 20 relative to the seat back is adjustable. After the angle of the seat back is adjusted, the angle of the table top 20 can be adjusted to be in a substantially horizontal state, so as to facilitate the user's use. Figure 2 As shown, the angle of the seat back is relative to Figure 1 After the adjustment, the angle of the table top 20 can be adjusted, for example, it can be adjusted from the maximum unfolded position L1 shown in the figure to the middle unfolded position L2, and can also be further adjusted to the folded position L3 close to the seat back.

[0047] When the mounting base 10 is other components, if the angle of the mounting base 10 changes, the above problem also exists, or according to the actual needs of the user, there is also a need to adjust the angle of the table top 20.

[0048] Please combine Figures 3 to 6 , Figure 3 This is a schematic diagram of the structure of a table top in an embodiment of the present application. Figure 4 for Figure 3 The schematic diagram of the structure of the table top with the lower cover of the table top hidden at another angle is shown. Figure 5 for Figure 4 The table top shown is a schematic diagram of the structure after the table top cover is hidden. Figure 6 for Figure 4 Schematic diagram of the structure of the connecting rod assembly of the table top shown.

[0049] In this embodiment, the table top 20 includes a mounting bracket 21 , a table top body 22 , a connecting rod assembly and a locking assembly 25 .

[0050] The mounting bracket 21 is used to be fixedly connected to the mounting base 10. In this way, the table top 20 can be mounted on the mounting base 10 through the mounting bracket 21. Exemplarily, the mounting bracket 21 and the mounting base 10 can be fastened and detachably fixedly connected by screws or bolts, so as to facilitate the disassembly and maintenance of the table top 20 as needed.

[0051] One end of the connecting rod assembly is pivotally connected to the mounting bracket 21, and the other end of the connecting rod assembly is pivotally connected to the table board body 22. When in use, the user can apply force to the table board body 22, and the position of the table board body 22 relative to the mounting base 10 can be changed by pivoting the connecting rod assembly, so that the table board body 22 can be in an unfolded use state or a folded non-use state.

[0052] The table board body 22 has a folding position L3 close to the mounting bracket 21 and a maximum unfolding position L1 away from the mounting bracket 21, and the locking assembly 25 is configured as follows: during the process of the table board body 22 rotating from the maximum unfolding position L1 to the folding position L3, the locking assembly 25 is used to lock the table board body 22 at an intermediate position L2 between the folding position L3 and the maximum unfolding position L1. The intermediate position L2 can also be called a hovering position.

[0053] After adopting the above scheme, when the table board 20 needs to be used, the table board body 22 can be opened to the maximum unfolded position L1. During the process of opening the table board body 22 to the maximum unfolded position L1, the locking assembly 25 does not operate, that is, the locking assembly 25 does not interfere with the unfolding of the table board body 22. When the angle of the mounting base 10 changes, the table board body 22 can be rotated from the maximum unfolded position L1 to the direction of the folded position L3, that is, the table board body 22 can be rotated in the direction close to the mounting base 10 to facilitate the adjustment of the table board body 22 to a roughly horizontal state for easy use. It can be understood that at this time, the table board body 22 is in the middle position L2 between the maximum unfolded position L1 and the folded position L3. It can also be understood that the table board body 22 can have multiple middle positions. After the table board body 22 is rotated from the maximum unfolded position L1 to the direction of the folded position L3 and adjusted to a suitable intermediate position for use, the locking assembly 25 can be used to lock the position of the table board body 22, which means preventing the table board body 22 from continuing to rotate to the maximum unfolded position L1 under the action of gravity, but does not affect the table board body 22 from continuing to rotate to the folded position L3 under the action of external force, so that the angle of the table board body 22 can be adjusted to adapt to the angle change of the mounting base 10, thereby improving the user's experience. The role of the locking assembly 25 is only to prevent the table board body 22 from rotating to the maximum unfolded position L1 under the action of gravity during the rotation of the table board body 22 from the maximum unfolded position L1 to the folded position L3, and does not affect the rotation of the table board body 22 to the folded position L3, which means that the role of the locking assembly 25 is not complete locking, but locking in a specific direction during a specific rotation process.

[0054] Taking the seat back of the seat with the mounting base 10 as an example, before the angle is adjusted, the seat back is roughly in an upright vertical state. When the angle is adjusted, the seat back rotates to the rear side away from the seat cushion and is in an inclined state. In actual settings, when the table board body 22 is at the maximum unfolded position L1, the table board body 22 and the seat back are roughly 90 degrees. In this way, after the seat back is rotated to the rear side to adjust the angle, the table board body 22 only needs to rotate from the maximum unfolded position L1 to the folding direction to adjust the angle, which also meets the use needs of the table board body 22 before the seat back is adjusted.

[0055] In the illustrated example, the table top 20 includes two separately disposed mounting brackets 21, and the two mounting brackets 21 are arranged at intervals along the length direction (ie, along the left-right direction) of the table top body 22. In other embodiments, the mounting bracket 21 of the table top 20 may also be an integral plate-like structure.

[0056] In some embodiments, the connecting rod assembly includes at least one connecting rod component 23, the connecting rod component 23 includes a first connecting rod 231 and a second connecting rod 232, one end of the first connecting rod 231 and one end of the second connecting rod 232 are pivotally connected to the mounting bracket 21, and the other end of the first connecting rod 231 and the other end of the second connecting rod 232 are pivotally connected to the table top body 22.

[0057] In the illustrated example, the connecting rod assembly includes two connecting rod parts 23, and the two connecting rod parts 23 are arranged at intervals along the length direction of the table board body 22, that is, the two connecting rod parts 23 are arranged at intervals along the left and right direction. The connecting rod assembly is provided with two connecting rod parts 23, which is conducive to improving the stability and reliability of the action when the table board body 22 is adjusted.

[0058] The two connecting rod components 23 are respectively arranged between the two mounting brackets 21 and the table board body 22. In the illustrated orientation, the front ends of the first connecting rod 231 and the second connecting rod 232 of the connecting rod component 23 close to the left are both pivotally connected to the mounting bracket 21 located on the left, and the front ends of the first connecting rod 231 and the second connecting rod 232 of the connecting rod component 23 close to the right are both pivotally connected to the mounting bracket 21 located on the right, and the two connecting rod components 23 are arranged in parallel in the left-right direction. The height of the front end of the first connecting rod 231 is lower than the height of the front end of the second connecting rod 232, that is, the pivoting position of the first connecting rod 231 and the mounting bracket 21 is lower than the pivoting position of the second connecting rod 232 and the mounting bracket 21, and the rear end of the first connecting rod 231 is located in front of the rear end of the second connecting rod 232, that is, the length of the first connecting rod 231 is less than the length of the second connecting rod 232. The structural setting of the connecting rod assembly can make the rotation process of the table board body 22 relatively smooth. When the connecting rod component 23 rotates to the point where the first connecting rod 231 and the second connecting rod 232 abut against each other, the table board body 22 is in the maximum expanded position L1. At this time, the first connecting rod 231 and the second connecting rod 232 form a structure that stably supports the table board body 22.

[0059] In some embodiments, the connecting rod assembly further includes at least one connecting shaft, which is connected to the rear end of the first connecting rod 231 of the connecting rod component 23 or to the rear end of the second connecting rod 232 of each connecting rod part 23, and the connecting shaft can be pivotally connected to the table board body 22. The setting of the connecting shaft can improve the structural strength of the connecting rod assembly, provide more stable support for the table board body 22, and ensure the synchronization of the actions of each connecting rod component 23.

[0060] In an implementation example, the connecting rod assembly includes a first connecting shaft 241, the first connecting shaft 241 is pivotally connected to the table board body 22, and the other end of the first connecting rod 231 of the connecting rod component 23 (i.e., the end away from the mounting bracket 21) is fixedly connected to the first connecting shaft 241. The aforementioned locking assembly 25 can be arranged between the table board body 22 and the first connecting shaft 241. When the table board body 22 rotates from the maximum unfolded position L1 to the direction of the folded position L3, the locking assembly 25 can lock the position of the table board body 22 by locking the position of the first connecting shaft 241.

[0061] In an implementation example, the connecting rod assembly also includes a second connecting shaft 242, the second connecting shaft 242 is pivotally connected to the table top body 22, the other end of the second connecting rod 232 (i.e., the end away from the mounting bracket 21) is connected to the second connecting shaft 242, and the second connecting shaft 242 is arranged parallel to the first connecting shaft 241.

[0062] The other end of the second connecting rod 232 may be fixedly connected to the second connecting shaft 242 , or may be pivotally connected to the second connecting shaft 242 .

[0063] In some embodiments, the table top body 22 includes a table top cover 221 and a table top lower cover 222 , which are detachably fixedly connected, and the table top cover 221 is located above the table top lower cover 222 .

[0064] In a specific implementation, a plurality of reinforcing rib structures may be provided on opposite sides of the table top cover 221 and the table top lower cover 222 to improve the structural strength of the table top body 22 .

[0065] In the illustrated example, the other end of the connecting rod assembly away from the mounting bracket 21 is pivotally connected to the upper cover 221 of the table top. Specifically, the first connecting shaft 241 and the second connecting shaft 242 are both pivotally connected to the upper cover 221 of the table top.

[0066] In order to facilitate the cooperation between the connecting rods of the connecting rod assembly and the table top body 22, avoidance holes 2211 extending along the width direction of the table top body 22 are provided on the table top upper cover 221. The number of avoidance holes 2211 matches the number of connecting rod components 23 and the positions correspond. The avoidance holes 2211 provide installation space for the connecting rod components 23.

[0067] In other embodiments, the other end of the connecting rod assembly away from the mounting bracket 21 may also be pivotally connected to the table top lower cover 222 .

[0068] In some embodiments, in order to facilitate the cooperation between the first connecting axis 241 and the second connecting axis 242 of the connecting assembly and the table top upper cover 221, the table top body 22 is also provided with two mounting seats 27, and the mounting seats 27 extend along the width direction of the table top body 22. The two mounting seats 27 are arranged in parallel, and the mounting seats 27 have a first groove 271 and a second groove 272. The two ends of the first connecting axis 241 can be respectively limited in the first groove 271 of the two mounting seats 27, and the two ends of the second connecting axis 242 can be limited in the second groove 272 of the two mounting seats 27.

[0069] The mounting seat 27 can be an independent structure, and then fixedly connected with the table top cover 221 by fasteners, etc. Of course, the mounting seat 27 can also be set as an integral structure with the table top cover 221.

[0070] The end of the first connecting rod 231 connected to the first connecting shaft 241 may also be located in the first groove 271, and the end of the second connecting rod 232 connected to the second connecting shaft 242 may also be located in the second groove 272. It can be understood that the position of the mounting seat 27 corresponds to the position of the aforementioned avoidance hole 2211.

[0071] The provision of the mounting seat 27 can enhance the structural strength of the table top cover 221 at the location of the avoidance hole 2211 .

[0072] In some embodiments, at least one first support seat 261 may be fixedly provided on the table board body 22, and the first connecting shaft 241 may be rotatably provided through the first support seat 261 to achieve a pivot connection with the table board body 22. A bearing may be provided between the first connecting shaft 241 and the first support seat 261 to stably support the first connecting shaft 241 and ensure smooth rotation of the first connecting shaft 241.

[0073] In some embodiments, at least one second support seat 262 may be fixedly provided on the table board body 22, and the second connecting shaft 242 may be rotatably provided through the second support seat 262 to achieve pivotal connection with the table board body 22. A bearing may also be provided between the second connecting shaft 242 and the second support seat 262 to stably support the second connecting shaft 242 and ensure smooth rotation of the second connecting shaft 242.

[0074] In the illustrated example, the first support base 261 and the second support base 262 are both fixedly disposed on a side of the table top cover 221 facing the table top lower cover 222 .

[0075] Please combine Figures 7 to 9 , Figure 7 for Figure 4 The local structural diagram of the area where the locking component of the housing is located is hidden in the figure. Figure 8 The schematic diagram of the locking assembly during the opening of the table top body is shown. Fig. 9The diagram shows the action principle of the locking assembly when the table top body is adjusted from the maximum unfolded position.

[0076] In this embodiment, the locking assembly 25 includes a ratchet 251 and a pawl 252, wherein the ratchet 251 can rotate with the connecting rod assembly, and the ratchet 251 and the pawl 252 are configured as follows: when the table top body 22 rotates from the maximum unfolded position L1 to the direction of the folded position L3, the ratchet 251 can pass over the pawl 252, and the pawl 252 can be engaged with the ratchet teeth of the ratchet 251 to prevent the ratchet 251 from rotating in the direction of the maximum unfolded position L1.

[0077] In this way, the one-way rotation characteristics of the ratchet 251 and the pawl 252 are used to lock the table board body 22 at the middle position L2 between the maximum unfolded position L1 and the folded position L3, so as to facilitate the angle adjustment of the table board body 22 and easily ensure the stability of the table board body 22 after the adjustment. It can be understood that when the table board body 22 rotates in the direction of the folded position L3, it is not restricted by the ratchet 251 and the pawl 252. In other words, when the table board body 22 rotates in the direction of the folded position L3, the ratchet 251 can smoothly rotate over the pawl 252. However, if the table board body 22 rotates in the direction of the folded position L3 and adjusts its position, it can no longer rotate in the maximum unfolded direction L1 due to the restriction of the meshing cooperation of the ratchet 251 and the pawl 252.

[0078] In the illustrated example, the ratchet 252 is specifically arranged on the first connecting shaft 241 of the connecting rod assembly, that is, the ratchet 252 can rotate together with the first connecting shaft 242. The ratchet 252 can be a separate part, fixedly mounted on the first connecting shaft 241. If processing is convenient, the ratchet 252 can also be an integral component with the first connecting shaft 241.

[0079] The locking assembly 25 further includes a housing 254 , which is fixed on the table top body 22 and located at the position of the ratchet 252 . The housing 253 can cover the ratchet 252 and provide an installation space for the pawl 252 .

[0080] In a specific implementation, the pawl 252 is rotatably mounted on the housing 253 . The pawl 252 can rotate toward the direction of the ratchet 251 to engage with the ratchet 251 . The pawl 252 can also rotate away from the ratchet 251 to separate from the ratchet 251 .

[0081] The locking assembly 25 also includes a cam 253 and an elastic member (not shown in the figure), wherein the elastic member is used to apply an elastic force to the pawl 252 to rotate the pawl 252 in a direction of engagement with the ratchet 251, and the cam 253 can rotate to switch between a first position and a second position. When the cam 253 is in the first position, the pawl 252 disengages from the ratchet 251 under the blocking action of the cam 253, and when the cam 253 is in the second position, the pawl 252 can engage with the ratchet 251 under the action of the elastic member.

[0082] In a specific implementation, the elastic member can be a torsion spring, one end of which is connected to the pawl 252, and the other end is connected to the housing 254. When the pawl 252 rotates in the direction of disengaging from the ratchet 251 under the action of an external force, the elastic member can accumulate elastic force. After the external force applied to the pawl 252 is cancelled, the pawl 252 can rotate in the direction of the ratchet 251 under the action of the elastic reset force accumulated by the elastic member to engage with the ratchet 251.

[0083] In a specific implementation, the above-mentioned external force of the pawl 252 can be applied by the cam 253. The cam 253 has a cam surface that cooperates with the pawl 252. When the cam 253 rotates toward the first position, the cam surface can be used to push the pawl 252 away from the ratchet 251. When the cam 253 rotates toward the second position, the cam 253 can release the external force applied to the pawl 252, so that the pawl 252 can be reset to the position engaged with the ratchet 251 under the action of the elastic member.

[0084] The cam 253 is also installed in the housing 254 , and can be rotatably connected to the housing 254 .

[0085] In this embodiment, the cam 253 is configured as follows: during the process of the table top body 22 rotating from the folded position L3 to the maximum unfolded position L1, the cam 253 is in the first position, that is, the cam 253 is in the position where the pawl 252 is disengaged from the ratchet 251; after the table top body 22 is in the maximum unfolded position L1, the cam 253 is in the second position, that is, the cam 253 is in the position where the position restriction on the pawl 252 is released, so that the pawl 252 can engage with the ratchet 251 under the action of the restoring elastic force of the elastic member.

[0086] After being configured as above, during the process of the table top body 22 rotating from the folded position L3 to the maximum unfolded position L1, the ratchet 251 and the pawl 252 are separated, and the two will not restrict the rotation of the table top body 22, that is, the locking assembly 25 does not work; after the table top body 22 is in the maximum unfolded position L1, the pawl 252 engages with the ratchet 251, which can limit the position of the table top body 22, so that the table top body 22 can only rotate in the direction of the folded position L3 to adjust the angle of the table top body 22.

[0087] like Figure 8As shown, the ratchet 251 rotates clockwise, and the table board body 22 rotates toward the maximum unfolded position L1. Figure 8 The dotted line in the figure shows the situation that the ratchet 251 rotates clockwise to the limit position. When the ratchet 251 rotates clockwise to the limit position, the table board body 22 is in the maximum expansion position L1, and the cam 253 can rotate clockwise to release the blocking restriction on the pawl 252. The pawl 252 rotates to the position engaged with the ratchet 251 under the action of the elastic member, as shown in FIG. Figure 8 The dotted line in the figure indicates the position. Fig. 9 As shown, after the table board body 22 is at the maximum unfolded position L1, if the angle of the table board body 22 needs to be adjusted, the ratchet 251 rotates counterclockwise to drive the pawl 252 to move upward, but the pawl 252 will return to the position engaged with the ratchet 251 under the action of the elastic member. During this process, if the table board body 22 rotates toward the maximum unfolded position L1, it cannot move due to the restriction of the pawl 252 and the ratchet 251. The angle adjustment of the table board body 22 from the maximum unfolded position L1 to the middle position L2 is related to the angle of the ratchet teeth of the ratchet 251. When setting, the angle of the table board body 22 can be determined according to needs, for example, it can be 5°.

[0088] In a specific implementation, the ratchet teeth of the ratchet wheel 251 can be arranged within a certain angular range in the circumferential direction, that is, the ratchet teeth are arranged only within the required angular adjustment range. In this way, when the table board body 22 rotates from the maximum unfolded position L1 to the folded position L3, the position can be locked only within the ratchet teeth section of the ratchet wheel 251, that is, it can hover.

[0089] There is a mature solution for setting the locking component as a ratchet structure and using the ratchet structure to lock the position of the table top body 22. How to make the pawl 252 move to engage with the ratchet 251 or disengage from the ratchet 252 is also an existing mature technology and will not be described in detail here.

[0090] Recombination Figures 4 to 6 Since the locking assembly 25 is arranged between the first connecting shaft 241 and the table top body 22, the first support seat 261 matched with the first connecting shaft 241 and the table top body 22 can be set as a split structure to facilitate the installation of the first connecting shaft 241, the first support seat 261 and the outer shell 254 of the locking assembly 25. The first support seat 261 and the outer shell 254 can be integrally connected with the mounting seat plate to facilitate fixing on the table top body 22.

[0091] In a specific implementation, two first support seats 261 are provided, and the locking assembly 25 is arranged between the two first support seats 261 , so that the stability of the overall operation of the connecting assembly can be ensured.

[0092] In the illustrated example, the second support base 262 matched with the second connecting shaft 242 is set as an integral structure with the table top cover 221. In other embodiments, the second support base 262 can also be set as a split structure like the first support base 261, and then fixedly connected to the table top cover 221.

[0093] In the illustrated example, the locking assembly 25 is provided in cooperation with the first connecting shaft 241 . In other embodiments, the locking assembly 25 may also be provided in cooperation with the second connecting shaft 242 .

[0094] The usage process of the table top 20 provided in this embodiment is as follows:

[0095] The table board body 22 is in the folded position L3. When the user needs to use the table board 20, he can manually apply force to the table board body 22 to pull the table board body 22. The table board body 22 can be unfolded from the folded position L3 to the maximum unfolded position L1 through the pivoting of the connecting rod assembly. During this process, the locking assembly 25 of the table board 20 does not operate. Here, the locking assembly 25 does not operate means that the locking assembly 25 does not interfere with the movement of the table board body 22, and the table board body 22 can be smoothly unfolded to the maximum unfolded position L1.

[0096] When the angle of the table top body 22 needs to be adjusted, the user can push the table top body 22 in the direction of the folding position L3. At this time, the pawl 252 of the locking assembly 25 engages with the ratchet teeth of the ratchet 251. When the first connecting shaft 241 rotates in the direction of the folding position L3, the ratchet 251 rotates accordingly and can pass over the pawl 252. After the table top body 22 is adjusted to a position, the external force applied to the table top body 22 disappears, and the pawl 252 engages with the ratchet teeth of the ratchet 251 under the action of the elastic member. At this time, due to the cooperation between the pawl 252 and the ratchet 251, the table top body 22 cannot rotate toward the maximum unfolded position L1, that is, the table top body 22 can be maintained in the adjusted position, that is, maintained in an intermediate position L2 between the maximum unfolded position L1 and the folded position L3.

[0097] The embodiment of the present application also provides a seat, which includes a table board 20 installed on a seat back or on a seat armrest, the table board 20 is the table board 20 introduced in the above embodiment, and the mounting bracket 21 of the table board 20 is fixedly connected to the seat back or the seat armrest. The seat back of the seat can be adjusted in angle, and when the table board 20 is installed on the seat back, the angle of the table board body 22 of the table board 20 can be adjusted to adapt to the angle adjustment of the seat back, ensuring that the table board 20 will not be affected by the change in the angle of the seat back.

[0098] The embodiment of the present application also provides a car, which includes a cabin. In some embodiments, the car also includes a seat installed in the cabin, and the seat is the seat introduced in the above embodiment; in other embodiments, the car also includes a table board 20 installed in the cabin, and the table board 20 is the table board 20 introduced in the above embodiment, and the table board 20 can be installed on the interior panel of the cabin. Other structures of the car can be realized by referring to existing technologies, which are not the core of the invention of this application and are not described here.

[0099] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A table top, characterized in that: It includes a table board body, a mounting bracket, a connecting rod assembly and a locking assembly; The mounting bracket is used to be fixedly connected to the mounting base; One end of the connecting rod assembly is pivotally connected to the mounting bracket, and the other end of the connecting rod assembly is pivotally connected to the table board body; The table board body has a folded position close to the mounting bracket and a maximum unfolded position away from the mounting bracket; The locking assembly is configured to lock the table board body at an intermediate position between the folded position and the maximum unfolded position during the process of the table board body rotating from the maximum unfolded position to the folded position.

2. The table top according to claim 1, characterized in that: The connecting rod assembly includes a first connecting shaft and at least one connecting rod component, wherein the first connecting shaft is pivotally connected to the table board body; The connecting rod component includes a first connecting rod and a second connecting rod, one end of the first connecting rod and one end of the second connecting rod are both pivotally connected to the mounting bracket, the other end of the first connecting rod is fixedly connected to the first connecting shaft, and the other end of the second connecting rod is pivotally connected to the table board body; The locking assembly is disposed between the table top body and the first connecting shaft.

3. The table top according to claim 2, characterized in that: The connecting rod assembly also includes a second connecting shaft, the second connecting shaft is pivotally connected to the table top body, the other end of the second connecting rod is connected to the second connecting shaft, and the second connecting shaft is arranged parallel to the first connecting shaft.

4. The table top according to claim 3, characterized in that: At least one first support seat is fixedly connected to the table board body, and the first connecting shaft is rotatably disposed through the first support seat; And / or, at least one second support base is fixedly connected to the table top body, and the second connecting shaft is rotatably disposed through the second support base.

5. The table top according to claim 3, characterized in that: Two mounting seats are fixedly connected to the table top body, and the mounting seats have a first groove and a second groove. The two ends of the first connecting shaft are respectively located in the two first grooves, and the two ends of the second connecting shaft are respectively located in the two second grooves.

6. The table top according to claim 2, characterized in that: The connecting rod assembly includes two connecting rod parts, and the two connecting rod parts are arranged at intervals along the length direction of the table top body.

7. The table top according to any one of claims 1 to 6, characterized in that: The mounting base is a seat back, a seat armrest, or a cabin interior panel.

8. The table top according to any one of claims 1 to 6, characterized in that: The locking assembly includes a ratchet and a pawl; the ratchet can rotate with the connecting rod assembly, and the ratchet and the pawl are configured as follows: when the table top body rotates from the maximum expanded position to the folded position, the ratchet can pass over the pawl, and the pawl can engage with the ratchet teeth of the ratchet to prevent the ratchet from rotating in the direction of the maximum expanded position.

9. The table top according to claim 8, characterized in that: The locking assembly includes a cam and an elastic member, wherein the elastic member is used to apply an elastic force to the pawl to rotate the pawl in a direction of engagement with the ratchet; the cam can rotate to switch between a first position and a second position, when the cam is in the first position, the pawl disengages from the ratchet under the blocking action of the cam, and when the cam is in the second position, the pawl can engage with the ratchet under the action of the elastic member.

10. A seat, characterized in that: It comprises a table top installed on a seat back or a seat armrest, and the table top is the table top according to any one of claims 1-9.

11. A car, characterized in that: It comprises a cockpit, and also comprises a table board as described in any one of claims 1 to 9 installed in the cockpit, or further comprises a seat as described in claim 10 installed in the cockpit.

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