Support assembly, table board assembly, front vehicle body structure, and vehicle

Abstract

A support assembly, a table board assembly, a front vehicle body structure, and a vehicle. A connecting shaft (6) is provided on a first end of a first support (1); a first end of a second support (2) is rotatably mounted on the connecting shaft (6); a ratchet wheel (3) is mounted on the connecting shaft (6); the ratchet wheel (3) comprises a ratchet wheel body (31) and a locking groove (32) formed on the ratchet wheel body (31); a transition wheel (4) is rotatably mounted on the connecting shaft (6); a limiting protrusion (41) is provided on the transition wheel (4); the outer diameter of the limiting protrusion (41) is greater than that of the ratchet wheel body (31); a first end of a pawl (5) is rotatably mounted on the second support (2); and a second end of the pawl (5) is connected to any one of the locking groove (32), the limiting protrusion (41), and the ratchet wheel body (31), so as to adjust the working state of the support assembly. In this way, unfolding and retraction of the support assembly are facilitated.

Description

Bracket assembly, table assembly, front body structure and vehicle

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 12, 2024, with application number 202410049251.2, and with the invention name “Bracket assembly, table assembly, front vehicle body structure and vehicle”, and the Chinese patent application filed with the China Patent Office on January 12, 2024, with application number 202420081408.5, and with the invention name “Bracket assembly, table assembly, front vehicle body structure and vehicle”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application belongs to the technical field of bracket assemblies, and specifically relates to a bracket assembly, a table assembly, a front vehicle body structure, and a vehicle. Background Art

[0003] At present, many devices are equipped with bracket assemblies, through which tables or other equipment are installed. The existing bracket assemblies (such as four-link brackets) are easily limited in their adjustment position during use and cannot be adjusted to a comfortable opening height. For example, as current vehicles are user-centric and developed based on usage scenarios, more and more functions of equipping table bodies are being developed in the passenger compartment. Usually, the table bodies of the second row are arranged on the backs of the front seats. The seat backs can provide an appropriate height to arrange the traditional four-link bracket. The bracket assembly can be adjusted to a comfortable opening height, and the table body can achieve a comfortable height position after unfolding. However, when the table body is equipped on the co-pilot, it is limited by the layout space. The existing four-link bracket cannot be adjusted to a comfortable opening height. The height of the table body is difficult to reach a comfortable height range, and the user experience is poor.

[0004] Summary of the Invention

[0005] The present application provides a bracket assembly, a table top assembly, a vehicle body front structure and a vehicle to solve the problem that the existing bracket assembly cannot be adjusted to a comfortable opening height.

[0006] A bracket assembly includes a first bracket, a second bracket, a ratchet, a transition wheel and a pawl;

[0007] A connecting shaft is provided on the first end of the first bracket;

[0008] The first end of the second bracket is rotatably mounted on the connecting shaft;

[0009] The ratchet is mounted on the connecting shaft, and the ratchet comprises a ratchet body and a locking groove provided on the ratchet body;

[0010] The transition wheel is rotatably mounted on the connecting shaft. A limiting protrusion is provided on the transition wheel. The projection of the limiting protrusion along the axial direction of the connecting shaft is partially located outside the projection of the ratchet body along the axial direction of the connecting shaft.

[0011] The first end of the pawl is rotatably mounted on the second bracket, and the second end of the pawl is connected to any one of the locking groove, the limiting protrusion and the ratchet body to adjust the working state of the bracket assembly.

[0012] Preferably, the bracket assembly further comprises a spring;

[0013] The first end of the spring is fixed on the second bracket, and the second end of the spring is connected to the second end of the pawl.

[0014] Preferably, the transition wheel is provided with a limiting groove;

[0015] The bracket assembly further includes a limiting pin, which passes through the limiting slot and is fixed on the ratchet.

[0016] Preferably, the second bracket includes a first connecting portion, a second connecting portion and a third connecting portion extending obliquely outwardly in the same direction from both ends of the first connecting portion, a fourth connecting portion extending from the outer side of one end of the second connecting portion at an obtuse angle, a fifth connecting portion extending from the outer side of one end of the third connecting portion at an obtuse angle, and a connecting plate extending from the fourth connecting portion;

[0017] The connecting disk is rotatably mounted on the connecting shaft, the fifth connecting portion is used to connect with an object to be used, and the first end of the pawl is rotatably mounted on the second connecting portion.

[0018] A table top assembly includes the aforementioned bracket assembly, a crossbeam, and a table top body;

[0019] The second end of the first bracket of the bracket assembly is fixed to the crossbeam;

[0020] The second end of the second bracket of the bracket assembly is rotatably connected to the table top body.

[0021] Preferably, at least one mounting groove is provided on the table top body, and a second bracket is installed in each mounting groove.

[0022] Preferably, the mounting groove is a strip-shaped groove; the second end of the second bracket is rotatably mounted in the strip-shaped groove.

[0023] A vehicle body front structure, comprising the aforementioned table board assembly and sub-frame instrument assembly;

[0024] The crossbeam of the table plate assembly is fixed on the sub-frame instrument assembly.

[0025] Preferably, the height difference between the table top height when the table top body is in the optimal unfolded state and the vehicle hip point height is 250-300 mm.

[0026] A vehicle comprises the aforementioned vehicle body front structure.

[0027] The present application discloses a bracket assembly comprising a first bracket, a second bracket, a ratchet, a transition wheel, and a pawl. The first bracket serves as a support member. A connecting shaft is provided on the first end of the first bracket for mounting the main components of the bracket assembly. The second end of the first bracket is connected to a reference member. The first end of the second bracket is rotatably mounted on the connecting shaft, and the second end of the second bracket is used to connect to an object to be used. The ratchet is mounted on the connecting shaft and includes a ratchet body and a locking groove provided on the ratchet body. The locking groove is located on the outer periphery of the ratchet body and provides a locking position for the pawl. The transition wheel is rotatably mounted on the connecting shaft and is provided with a stopper protrusion. The stopper protrusion is partially located outside the axial projection of the ratchet body along the connecting shaft, facilitating the movement of the second end of the pawl from the locking groove to the stopper protrusion. Specifically, the ratchet body is fixed to the connecting shaft, and the first end of the second bracket and the transition wheel are both mounted on the connecting shaft, located on either side of the ratchet body. This makes the bracket assembly more compact and facilitates adjustment of the bracket assembly. The first end of the pawl is rotatably mounted on the second bracket, and the second end of the pawl is engaged with any one of the locking groove, the limiting protrusion, and the ratchet body. During use, by rotating the second bracket, the first end of the second bracket rotates about the connecting shaft, which drives the pawl to rotate so that the second end of the pawl engages with any one of the locking groove, the limiting protrusion, and the ratchet body, thereby adjusting the operating state of the bracket assembly. The specific adjustment process is as follows: first, rotate the second bracket clockwise. When the second end of the pawl engages the locking groove, the pawl is locked, placing the bracket assembly in the optimal deployed state. Then, continue to rotate the second bracket clockwise, driving the second end of the pawl to move from the locking groove to the limiting protrusion. The pawl is in a transition state, allowing the bracket assembly to switch from the optimal deployed state to the adjusted state. Then, rotate the second bracket counterclockwise. Using the friction between the second end of the pawl and the limiting protrusion, the transition wheel rotates around the connecting shaft so that the limiting protrusion can cover the locking groove. The second end of the pawl does not enter the locking groove and can move directly from the limiting protrusion to the ratchet body. The pawl is unlocked, allowing the bracket assembly to switch from the adjusted state to the retracted state. Then, rotate the second bracket until the bracket assembly is fully retracted. This arrangement facilitates the deployment and retraction of the bracket assembly. In this example, the locking groove is provided on the ratchet body. The installation position of the locking groove can be adjusted according to actual conditions so that when the bracket assembly is fully deployed, the height of the object to be used is within a comfortable range, improving the user experience.

[0028] The existing bracket assembly (four-link bracket) is arranged on the passenger seat. After the bracket assembly is unfolded, the height of the table board body is difficult to reach a comfortable height range and will interfere with the passenger's knees. To solve the above problem, the bracket assembly in this example can be installed at a feasible position on the passenger seat. During use, by rotating the second bracket, the first end of the second bracket rotates around the connecting shaft, which can drive the pawl to rotate so that the second end of the pawl is connected to any one of the locking groove, the limiting protrusion and the ratchet body to adjust the working state of the bracket assembly and facilitate the unfolding and retraction of the bracket assembly. The locking groove is provided on the ratchet body, and the installation position of the locking groove can be adjusted according to actual conditions so that when the bracket assembly is fully unfolded, the height of the table board body reaches a comfortable height range and avoids interference with the passenger's knees, creating a comfortable usage scenario for the passenger on the passenger seat, enhancing the differentiated user experience, and improving product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 is a front view of the bracket assembly in this application;

[0030] FIG2 is a cross-sectional view of the bracket assembly in the present application;

[0031] FIG3 is an isometric view of the table top assembly of the present application;

[0032] FIG4 is an isometric view of the front structure of the vehicle body in the present application;

[0033] FIG5 is a diagram of the first state of the table top assembly in the present application;

[0034] FIG6 is a diagram of the second state of the table top assembly in the present application;

[0035] FIG7 is a diagram of the table top assembly in the third state of the present application;

[0036] FIG8 is a diagram of the fourth state of the table top assembly in the present application.

[0037] Among them, 1. First bracket; 2. Second bracket; 21. First connecting part; 22. Second connecting part; 23. Third connecting part; 24. Fourth connecting part; 25. Fifth connecting part; 26. Connecting plate; 3. Ratchet; 31. Ratchet body; 32. Locking groove; 4. Transition wheel; 41. Limiting protrusion; 42. Limiting groove; 5. Pawl; 6. Connecting shaft; 7. Spring; 8. Limiting pin; 9. Crossbeam; 10. Table board body; 11. Mounting slot; 12. Sub-frame instrument assembly. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0039] In the description of this application, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they cannot be understood as limiting this application. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0041] An embodiment of the present application provides a bracket assembly, referring to Figures 1-4, the bracket assembly includes a first bracket 1, a second bracket 2, a ratchet 3, a transition wheel 4 and a pawl 5; a connecting shaft 6 is provided on the first end of the first bracket 1; the first end of the second bracket 2 is rotatably mounted on the connecting shaft 6; the ratchet 3 is mounted on the connecting shaft 6, and the ratchet 3 includes a ratchet body 31 and a locking groove 32 arranged on the ratchet body 31; the transition wheel 4 is rotatably mounted on the connecting shaft 6, and a limiting protrusion 41 is provided on the transition wheel 4, and the projection of the limiting protrusion 41 along the axial direction of the connecting shaft 6 is partially located outside the projection of the ratchet body 31 along the axial direction of the connecting shaft 6; the first end of the pawl 5 is rotatably mounted on the second bracket 2, and the second end of the pawl 5 is connected to any one of the locking groove 32, the limiting protrusion 41 and the ratchet body 31 to adjust the working state of the bracket assembly.

[0042] As an example, the bracket assembly includes a first bracket 1, a second bracket 2, a ratchet 3, a transition wheel 4, and a pawl 5. The first bracket 1 serves as a support member. A connecting shaft 6 is provided on the first end of the first bracket 1 for mounting the main components of the bracket assembly. The second end of the first bracket 1 is connected to a reference member. The first end of the second bracket 2 is rotatably mounted on the connecting shaft 6, and the second end of the second bracket 2 is used to connect to an object to be used. The ratchet 3 is mounted on the connecting shaft 6 and includes a ratchet body 31 and a locking groove 32 provided on the ratchet body 31. The locking groove 32 is formed inwardly from the outer edge of the ratchet body 31 and provides a locking position for the pawl 5. The transition wheel 4 is rotatably mounted on the connecting shaft 6 and is provided with a stopper protrusion 41. The projection of the stopper protrusion 41 along the axial direction of the connecting shaft 6 partially lies outside the projection of the ratchet body 31 along the axial direction of the connecting shaft 6, facilitating the movement of the second end of the pawl 5 from the locking groove 32 to the stopper protrusion 41. Specifically, the ratchet body 31 is fixed to the connecting shaft 6, and the first end of the second bracket 2 and the transition wheel 4 are both mounted on the connecting shaft 6, respectively located on either side of the ratchet body 31. This makes the structural installation of the bracket assembly more compact and facilitates adjustment of the bracket assembly. The first end of the pawl 5 is rotatably mounted on the second bracket 2, and the second end of the pawl 5 is connected to any one of the locking groove 32, the limiting protrusion 41, and the ratchet body 31. During use, by rotating the second bracket 2, the first end of the second bracket 2 rotates about the connecting shaft 6, which can drive the pawl 5 to rotate, so that the second end of the pawl 5 is connected to any one of the locking groove 32, the limiting protrusion 41, and the ratchet body 31, thereby adjusting the working state of the bracket assembly. The specific adjustment process is as follows: first, rotate the second bracket 2 clockwise. When the second end of the pawl 5 contacts the locking groove 32, the pawl 5 is in a locked state, so that the bracket assembly is in the optimal deployment state; then continue to rotate the second bracket 2 clockwise, driving the second end of the pawl 5 to move from the locking groove 32 to the limiting protrusion 41. The pawl 5 is in a transition state, so that the bracket assembly switches from the optimal deployment state to the adjustment state; then rotate the second bracket 2 counterclockwise. Using the friction between the second end of the pawl 5 and the limiting protrusion 41, the transition wheel 4 is driven to rotate around the connecting shaft 6, so that the limiting protrusion 41 can cover the locking groove 32. The second end of the pawl 5 does not enter the locking groove 32 and can move directly from the limiting protrusion 41 to the ratchet body 31. The pawl 5 is in an unlocked state, so that the bracket assembly switches from the adjustment state to the retraction state; then rotate the second bracket 2 until the bracket assembly is in a fully retracted state. This arrangement facilitates the deployment and retraction of the bracket assembly. In this example, the locking slot 32 is set on the ratchet body 31, and the installation position of the locking slot 32 can be adjusted according to actual conditions so that when the bracket assembly is fully unfolded, the height of the object to be used reaches a comfortable height range, thereby improving the user experience.

[0043] The existing bracket assembly (four-link bracket) is arranged on the passenger seat. After the bracket assembly is unfolded, the height of the table board body 10 is difficult to reach a comfortable height range and will interfere with the passenger's knees. To solve the above problem, the bracket assembly in this example can be installed at a feasible position on the passenger seat. When in use, by rotating the second bracket 2, the first end of the second bracket 2 rotates around the connecting shaft 6, which can drive the pawl 5 to rotate so that the second end of the pawl 5 is connected with any one of the locking groove 32, the limiting protrusion 41 and the ratchet body 31 to adjust the working state of the bracket assembly and facilitate the unfolding and retraction of the bracket assembly. Among them, the locking groove 32 is set on the ratchet body 31. The installation position of the locking groove 32 can be adjusted according to actual conditions so that when the bracket assembly is fully unfolded, the height of the table board body 10 reaches a comfortable height range and avoids interfering with the passenger's knees, creating a comfortable usage scenario for the passenger on the passenger seat, enhancing the differentiated user experience, and improving product competitiveness.

[0044] In one embodiment, referring to FIG. 1 and FIG. 2 , the bracket assembly further includes a spring 7 ; a first end of the spring 7 is fixed to the second bracket 2 , and a second end of the spring 7 is connected to the second end of the pawl 5 .

[0045] As an example, the bracket assembly further includes a spring 7, the first end of which is fixed to the second bracket 2, and the second end of which is connected to the second end of the pawl 5. The elasticity of the spring 7 constantly maintains the second end of the pawl 5 in a direction toward the ratchet 3, allowing the pawl 5 to engage with any of the locking groove 32, the limiting protrusion 41, and the ratchet body 31 to adjust the operating state of the bracket assembly. When the second end of the pawl 5 moves from the locking groove 32 to the limiting protrusion 41, the second end of the pawl 5 rotates clockwise around the first end of the pawl 5. When the spring 7 is compressed, the elastic force generated causes the second end of the pawl 5 to rotate counterclockwise around the first end of the pawl 5.

[0046] In one embodiment, referring to FIG. 1 and FIG. 3 , a limiting groove 42 is provided on the transition wheel 4 ; the bracket assembly further includes a limiting pin 8 , which passes through the limiting groove 42 and is fixed to the ratchet 3 .

[0047] As an example, the transition wheel 4 is provided with a limit slot 42, which is an arc-shaped slot. The bracket assembly also includes a limit pin 8, which passes through the limit slot 42 and is fixed to the ratchet wheel 3. The limit pin 8 can limit the range of rotation of the transition wheel 4 about the connecting shaft 6, thereby limiting the range of rotation of the limit protrusion 41 under the action of the second end of the pawl 5, thereby achieving the purpose of covering or not covering the locking slot 32. When the second bracket 2 is rotated clockwise, the second end of the pawl 5 moves out of the locking groove 32, and the side of the limiting groove 42 close to the locking groove 32 is connected with the limiting pin 8, so that the transition wheel 4 and the limiting protrusion 41 remain stationary. Under the action of power, the first end of the pawl 5 will rotate, so that the second end of the pawl 5 compresses the spring 7 to open a certain angle, and then transitions to the limiting protrusion 41. Then, the second bracket 2 is rotated counterclockwise, so that the second end of the pawl 5 rotates counterclockwise around the connecting shaft 6 with the limiting protrusion 41 and the transition wheel 4. When the limiting groove 42 of the transition wheel 4 is away from the side of the locking groove 32 and is connected with the limiting pin 8, the limiting protrusion 41 covers the locking groove 32, and the second end of the pawl 5 moves from the limiting protrusion 41 to the ratchet body 31, which is convenient for recovering the bracket assembly.

[0048] In one embodiment, referring to Figure 4, the second bracket 2 includes a first connecting portion 21, a second connecting portion 22 and a third connecting portion 23 extending outwardly in the same direction from both ends of the first connecting portion 21, a fourth connecting portion 24 extending from the outer side of one end of the second connecting portion 22 along an obtuse angle direction, a fifth connecting portion 25 extending from the outer side of one end of the third connecting portion 23 along an obtuse angle direction, and a connecting disk 26 extending from the fourth connecting portion 24, the connecting disk 26 is rotatably mounted on the connecting shaft 6, the fifth connecting portion 25 is used to connect with an object to be used, and the first end of the pawl 5 is rotatably mounted on the second connecting portion 22.

[0049] As an example, the second bracket 2 includes a first connecting portion 21, a second connecting portion 22, a third connecting portion 23, a fourth connecting portion 24, a fifth connecting portion 25 and a connecting plate 26. The second connecting portion 22 and the third connecting portion 23 are respectively extended outwardly in the same direction from both ends of the first connecting portion 21, the fourth connecting portion 24 is extended from the outer side of one end of the second connecting portion 22 along an obtuse angle, the fifth connecting portion 25 is extended from the outer side of one end of the third connecting portion 23 along an obtuse angle, the connecting plate 26 is extended from the fourth connecting portion 24, and the fifth connecting portion 25 is used to connect with the object to be used. The first end of the pawl 5 is rotatably mounted on the second connecting portion 22; the length of the third connecting portion 23 is greater than The length of the second connecting part 22; the connecting disk 26 is rotatably mounted on the connecting shaft 6, and the fifth connecting part 25 is used to connect with the object to be used; the first connecting part 21, the second connecting part 22 and the third connecting part 23 form an avoidance space, which can provide an avoidance position for recovering the object to be used; by rotating the second bracket 2, the connecting disk 26 rotates around the connecting shaft 6, the pawl 5 can be driven to rotate so that the second end of the pawl 5 is connected with any one of the locking groove 32, the limiting protrusion 41 and the ratchet body 31 to adjust the working state of the bracket assembly.

[0050] An embodiment of the present application provides a table top assembly, which, referring to Figures 1-4, includes a bracket assembly, a crossbeam 9 and a table top body 10; the second end of the first bracket 1 of the bracket assembly is fixed on the crossbeam 9; the second end of the second bracket 2 of the bracket assembly is rotatably connected to the table top body 10.

[0051] As an example, the tabletop assembly includes a bracket assembly, a crossbeam 9, and a tabletop body 10. A first bracket 1 serves as a support member. A connecting shaft 6 is provided on the first end of the first bracket 1 for mounting the main components of the bracket assembly. The second end of the first bracket 1 is fixed to the crossbeam 9. The first end of the second bracket 2 is rotatably mounted on the connecting shaft 6, and the second end of the second bracket 2 of the bracket assembly is rotatably connected to the tabletop body 10. A ratchet 3 is mounted on the connecting shaft 6. The ratchet 3 includes a ratchet body 31 and a locking groove 32 disposed on the outer periphery of the ratchet body 31, providing a locking position for the pawl 5. A transition wheel 4 is rotatably mounted on the connecting shaft 6 and is provided with a stopper protrusion 41. The projection of the stopper protrusion 41 along the axial direction of the connecting shaft 6 partially lies outside the projection of the ratchet body 31 along the axial direction of the connecting shaft 6, facilitating the movement of the second end of the pawl 5 from the locking groove 32 to the stopper protrusion 41. Specifically, the ratchet body 31 is fixed to the connecting shaft 6, and the first end of the second bracket 2 and the transition wheel 4 are both mounted on the connecting shaft 6, respectively located on both sides of the ratchet body 31. This makes the structural installation of the bracket assembly more compact and facilitates the adjustment of the bracket assembly. The first end of the pawl 5 is rotatably mounted on the second bracket 2, and the second end of the pawl 5 is connected to any one of the locking groove 32, the limiting protrusion 41 and the ratchet body 31. The bracket assembly in this example is convenient for unfolding and recovering the bracket assembly when in use. By rotating the second bracket 2, the first end of the second bracket 2 rotates around the connecting shaft 6, which can drive the pawl 5 to rotate, so that the second end of the pawl 5 is connected to any one of the locking groove 32, the limiting protrusion 41 and the ratchet body 31, so as to adjust the working state of the bracket assembly. The specific adjustment process is as follows: first, rotate the second bracket 2 clockwise, and when the second end of the pawl 5 is connected with the locking groove 32, the pawl 5 is in a locked state, so that the bracket assembly is in the optimal expanded state; then continue to rotate the second bracket 2 clockwise, driving the second end of the pawl 5 to move from the locking groove 32 to the limiting protrusion 41, and the pawl 5 is in a transition state, so that the bracket assembly is switched from the optimal expanded state to the adjustment state; then rotate the second bracket 2 counterclockwise, and use the friction force between the second end of the pawl 5 and the limiting protrusion 41 to drive the transition wheel 4 to rotate around the connecting shaft 6, so that the limiting protrusion 41 can cover the locking groove 32, and the second end of the pawl 5 will not enter the locking groove 32, and can be moved directly from the limiting protrusion 41 to the ratchet body 31, and the pawl 5 is in an unlocked state, so that the bracket assembly is switched from the adjustment state to the recovery state; then rotate the second bracket 2 until the bracket assembly is in a completely recovered state. Among them, the locking groove 32 is set on the ratchet body 31, and the installation position of the locking groove 32 can be adjusted according to actual conditions so that when the bracket assembly is fully unfolded, the height of the table board body 10 reaches a comfortable height range to avoid interference with the passenger's knees, creating a comfortable usage scenario for the co-pilot passenger, enhancing the user's differentiated experience, and improving product competitiveness.

[0052] In one embodiment, referring to FIG. 3 and FIG. 4 , at least one mounting groove 11 is defined on the table top body 10 , and a second bracket 2 is installed in each mounting groove 11 .

[0053] As an example, at least one mounting groove 11 is provided on the table board body 10, and a second bracket 2 is installed in each mounting groove 11. This arrangement allows the table board body 10 to rotate around the second end of the second bracket 2, which is convenient for adjusting the degree of expansion or retraction of the table board body 10 to meet people's usage needs. When there is one mounting groove 11, the second end of a second bracket 2 is installed in the mounting groove 11, which can support the expansion of the table board body 10. When there are two or more mounting grooves 11, two or more mounting grooves 11 are arranged at intervals on the table board body 10, and a second bracket 2 is installed in each mounting groove 11. The two or more second brackets 2 act simultaneously to support the expansion of the table board body 10, and the stability is better.

[0054] In one embodiment, referring to FIG. 3 and FIG. 4 , the mounting groove 11 is a strip-shaped groove; the second end of the second bracket 2 is rotatably mounted in the strip-shaped groove.

[0055] As an example, the mounting groove 11 is a strip-shaped groove, and the second end of the second bracket 2 is rotatably mounted in the strip-shaped groove. Specifically, the fifth connecting portion 25 of the second bracket 2 is placed in the strip-shaped groove, and one end of the fifth connecting portion 25 is mounted in the strip-shaped groove via a rotating shaft. One end of the table board body 10 rotates around the rotating shaft. In the length direction of the strip-shaped groove, the fifth connecting portion 25 has two contacts with the strip-shaped groove, namely, limiting the two positions of the table board body 10, namely, the expansion and retraction, so as to facilitate the adjustment of the expansion or retraction degree of the table board body 10 to meet people's usage needs.

[0056] An embodiment of the present application provides a vehicle body front structure, which includes a table top assembly and a sub-frame instrument assembly 12 , with reference to FIGS. 1-4 . The crossbeam 9 of the table top assembly is fixed to the sub-frame instrument assembly 12 .

[0057] As an example, the front structure of the vehicle body includes a table top assembly and a sub-frame instrument assembly 12; the crossbeam 9 of the table top assembly is fixed to the sub-frame instrument assembly 12; by rotating the second bracket 2, the first end of the second bracket 2 rotates around the connecting shaft 6, which can drive the pawl 5 to rotate so that the second end of the pawl 5 is connected to any one of the locking groove 32, the limiting protrusion 41 and the ratchet body 31 to adjust the working state of the bracket assembly. The specific adjustment process is as follows: first, rotate the second bracket 2 clockwise, and when the second end of the pawl 5 is connected with the locking groove 32, the pawl 5 is in a locked state, so that the bracket assembly is in the optimal expanded state; then continue to rotate the second bracket 2 clockwise, driving the second end of the pawl 5 to move from the locking groove 32 to the limiting protrusion 41, and the pawl 5 is in a transition state, so that the bracket assembly is switched from the optimal expanded state to the adjustment state; then rotate the second bracket 2 counterclockwise, and use the friction force between the second end of the pawl 5 and the limiting protrusion 41 to drive the transition wheel 4 to rotate around the connecting shaft 6, so that the limiting protrusion 41 can cover the locking groove 32, and the second end of the pawl 5 will not enter the locking groove 32, and can be moved directly from the limiting protrusion 41 to the ratchet body 31, and the pawl 5 is in an unlocked state, so that the bracket assembly is switched from the adjustment state to the recovery state; then rotate the second bracket 2 until the bracket assembly is in a completely recovered state. Among them, the locking groove 32 is set on the ratchet body 31, and the installation position of the locking groove 32 can be adjusted according to actual conditions so that when the bracket assembly is fully unfolded, the height of the table board body 10 reaches a comfortable height range to avoid interference with the passenger's knees, creating a comfortable usage scenario for the co-pilot passenger, enhancing the user's differentiated experience, and improving product competitiveness.

[0058] 5-8 , which illustrate the movement process of the table top body 10 from the optimal unfolded state to the retracted state:

[0059] The table board body 10 is in the best expanded state. When the second end of the pawl 5 is connected with the locking groove 32, the pawl 5 is in the locked state, so that the bracket assembly is in the best expanded state and the table board body 10 is locked; lift the table board body 10, rotate the second bracket 2 clockwise, drive the second end of the pawl 5 to move from the locking groove 32 to the limiting protrusion 41, and the pawl 5 is in the transition state, so that the bracket assembly switches from the best expanded state to the adjustment state; press down the table board body 10, rotate the second bracket 2 counterclockwise, and use the friction between the second end of the pawl 5 and the limiting protrusion 41 to drive the transition wheel 4 to rotate around the connecting shaft 6, so that the limiting protrusion 41 The locking groove 32 can be shielded, and the second end of the pawl 5 will not enter the locking groove 32. It can move directly from the limiting protrusion 41 to the ratchet body 31. The pawl 5 is in the unlocked state, so that the bracket assembly switches from the adjustment state to the retraction state. Then, the table plate body 10 is pressed down. The transition wheel 4 is restricted by the limiting pin 8 and no longer rotates counterclockwise. The pawl 5 disengages from the limiting protrusion 41, crosses the locking groove 32 on the ratchet 3, and falls onto the ratchet body 31 (i.e., the smooth area). At the same time, the table plate body 10 rotates around the second end of the second bracket 2. Continuing to press down the table plate body 10 and rotate it accordingly, the table plate body 10 can be completely retracted.

[0060] In one embodiment, referring to FIG. 4 , the height difference between the table top height when the table top body 10 is in the optimal unfolded state and the vehicle hip point height is 250-300 mm.

[0061] As an example, the vehicle's hip point, or H-point, refers to the vehicle's hip point on the driver's seat and is a reference point for determining the position of the driver or passenger in the seat. The H-point is the rotation point (hip point) where the torso and thigh are connected. The "hip point" position measured on the actual vehicle is called the H-point. In order to facilitate the use of the tabletop body 10 after it is opened, the structural parameters of the bracket assembly are adjusted to adapt to the appropriate height of the tabletop body 10. The height difference between the tabletop height in the optimal unfolded state of the tabletop body 10 and the vehicle's hip point height is 250 to 300 mm, so that the height of the tabletop body 10 reaches a comfortable height range, avoiding interference with the passenger's knees, creating a comfortable usage scenario for the co-pilot passenger, enhancing the user's differentiated experience, and improving product competitiveness.

[0062] An embodiment of the present application provides a vehicle, including a front vehicle body structure.

[0063] As an example, the front structure of the vehicle body includes a table top assembly and a sub-frame instrument assembly 12; the crossbeam 9 of the table top assembly is fixed to the sub-frame instrument assembly 12; by rotating the second bracket 2, the first end of the second bracket 2 rotates around the connecting shaft 6, which can drive the pawl 5 to rotate so that the second end of the pawl 5 is connected to any one of the locking groove 32, the limiting protrusion 41 and the ratchet body 31 to adjust the working state of the bracket assembly. The specific adjustment process is as follows: first, rotate the second bracket 2 clockwise, and when the second end of the pawl 5 is connected with the locking groove 32, the pawl 5 is in a locked state, so that the bracket assembly is in the optimal expanded state; then continue to rotate the second bracket 2 clockwise, driving the second end of the pawl 5 to move from the locking groove 32 to the limiting protrusion 41, and the pawl 5 is in a transition state, so that the bracket assembly is switched from the optimal expanded state to the adjustment state; then rotate the second bracket 2 counterclockwise, and use the friction force between the second end of the pawl 5 and the limiting protrusion 41 to drive the transition wheel 4 to rotate around the connecting shaft 6, so that the limiting protrusion 41 can cover the locking groove 32, and the second end of the pawl 5 will not enter the locking groove 32, and can be moved directly from the limiting protrusion 41 to the ratchet body 31, and the pawl 5 is in an unlocked state, so that the bracket assembly is switched from the adjustment state to the recovery state; then rotate the second bracket 2 until the bracket assembly is in a completely recovered state. Among them, the locking groove 32 is set on the ratchet body 31, and the installation position of the locking groove 32 can be adjusted according to actual conditions so that when the bracket assembly is fully unfolded, the height of the table board body 10 reaches a comfortable height range to avoid interference with the passenger's knees, creating a comfortable usage scenario for the co-pilot passenger, enhancing the user's differentiated experience, and improving product competitiveness.

[0064] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A support assembly, characterized in that, It includes a first bracket, a second bracket, a ratchet wheel, a transition wheel and a pawl; A connecting shaft is provided at the first end of the first bracket; The first end of the second bracket is rotatably mounted on the connecting shaft; The ratchet wheel is mounted on the connecting shaft. The ratchet wheel includes a ratchet wheel body and a locking groove provided on the ratchet wheel body; The transition wheel is rotatably mounted on the connecting shaft. A limiting protrusion is provided on the transition wheel. The projection of the limiting protrusion along the axial direction of the connecting shaft is partially outside the projection of the ratchet wheel body along the axial direction of the connecting shaft; The first end of the pawl is rotatably mounted on the second bracket. The second end of the pawl is in contact with any one of the locking groove, the limiting protrusion and the ratchet wheel body to adjust the working state of the bracket assembly.

2. The bracket assembly according to claim 1, wherein The bracket assembly further includes a spring; The first end of the spring is fixed on the second bracket, and the second end of the spring is connected to the second end of the pawl.

3. The stent assembly according to claim 1, wherein A limiting groove is provided on the transition wheel; The bracket assembly further includes a limiting pin, and the limiting pin passes through the limiting groove and is fixed on the ratchet wheel.

4. The bracket assembly according to claim 1, wherein, The second bracket includes a first connecting portion, second connecting portions and third connecting portions that extend outward obliquely in the same direction from both ends of the first connecting portion, a fourth connecting portion that extends outward in an obtuse angle direction from the outer side of one end of the second connecting portion, a fifth connecting portion that extends outward in an obtuse angle direction from the outer side of one end of the third connecting portion, and a connecting disk that extends from the fourth connecting portion; The connecting disk is rotatably mounted on the connecting shaft. The fifth connecting portion is used to connect with a standby object, and the first end of the pawl is rotatably mounted on the second connecting portion.

5. A tabletop assembly, characterized in that, It includes the bracket assembly according to any one of claims 1-4, a cross beam and a table board main body; The second end of the first bracket of the bracket assembly is fixed on the cross beam; The second end of the second bracket of the bracket assembly is rotatably connected to the table board main body.

6. The tabletop assembly according to claim 5, characterized in that, At least one mounting groove is provided on the table board main body, and each mounting groove is provided with a second bracket.

7. The tabletop assembly according to claim 6, characterized in that, The mounting groove is a strip-shaped groove; the second end of the second bracket is rotatably mounted in the strip-shaped groove.

8. A front body structure, characterized in that, It includes the table board assembly and the sub-frame instrument assembly according to any one of claims 5-7; The cross beam of the table board assembly is fixed on the sub-frame instrument assembly.

9. The front body structure according to claim 8, characterized in that, The height difference between the desktop height of the table board main body in the best unfolded state and the hip point height of the vehicle is 250-300 mm.

10. A vehicle, characterized in that, It includes the front body structure according to any one of claims 8-9.

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