A writing board assembly with a two-stage locking mechanism

Abstract

The present application relates to a writing tablet assembly with a two-stage locking mechanism, belonging to the technical field of automotive writing tablets. It comprises an instrument panel assembly, a first locking mechanism, and a second locking mechanism. The instrument panel assembly comprises an instrument panel frame, a slide rail fixed to the instrument panel frame, and a writing tablet body slidably connected to the slide rail. The first locking mechanism is disposed at the bottom of the writing tablet body and is used to restrict the writing tablet body from sliding into the instrument panel frame. The first locking mechanism comprises a pull rod rotatably connected to the writing tablet body, and a first stopper is provided at the end of the instrument panel frame for abutting and limiting the pull rod. The second locking mechanism is used to restrict the writing tablet body from sliding out of the instrument panel frame. The second locking mechanism comprises a lock tongue assembly fixed to the instrument panel frame for locking the writing tablet body. This ensures that the writing tablet body is reliably locked and limited both when being pulled out and when being pushed back.

Description

Technical Field

[0001] The present application relates to the technical field of automobile writing tablets, and in particular to a writing tablet assembly with a two-stage locking mechanism. Background Art

[0002] Currently, some car interiors feature a hidden, pull-out tablet in the center console, making it easy for passengers to place items. When needed, such as a laptop, the tablet is pulled out for use. After use, it is returned to its original position and hidden. However, current tablets typically utilize a single-stage labyrinthine locking mechanism. When the tablet is finished, it is returned to its original position, where the locking mechanism secures the tablet to prevent it from sliding out. However, during vehicle operation, the road surface often experiences significant ups and downs, and this single-stage labyrinthine locking mechanism cannot guarantee reliable locking, making the tablet prone to slipping out and causing inconvenience. Furthermore, when the tablet is pulled out, without a corresponding retaining mechanism to lock it in place, it is susceptible to slipping due to the vehicle's shaking, causing items placed on the tablet to fall out. This makes it difficult to ensure the tablet's reliability and safety. Summary of the Invention

[0003] The embodiment of the present application provides a writing tablet assembly with a two-stage locking mechanism to solve the problem in the related art that the pull-out writing tablet in the car is difficult to be reliably locked when being pulled out and pushed back, which affects the use.

[0004] The present application provides a tablet assembly with a two-stage locking mechanism, including:

[0005] An instrument panel assembly, comprising an instrument panel frame, a slide rail fixed to the instrument panel frame, and a writing board body slidably connected to the slide rail;

[0006] a first locking mechanism disposed at the bottom of the tablet body and configured to restrict the tablet body from sliding into the instrument panel frame, the first locking mechanism comprising a pull rod rotatably connected to the tablet body, the instrument panel frame having an end portion provided with a first stopper configured to abut against and limit the pull rod;

[0007] The second locking mechanism is used to limit the tablet body from sliding out of the instrument panel frame. The second locking mechanism includes a lock tongue assembly fixed to the instrument panel frame and used to lock the tablet body.

[0008] In some embodiments, a first wedge-shaped block for matching the first stop block is provided at the end of the pull rod, and the first stop block and the first wedge-shaped block are both provided with opposing beveled surfaces. When the writing tablet body slides out of the dashboard frame, the end face of the first stop block and the end face of the first wedge-shaped block contact each other to limit the writing tablet body from sliding into the dashboard frame.

[0009] In some embodiments, a first return spring is provided between the pull rod and the tablet body, and a shift rod is provided on an end of the pull rod away from the first wedge block.

[0010] In some embodiments, the pull rod is in a broken line shape, and includes a toggle section for connecting the first return spring and provided with the toggle rod, and a resistance section provided with the first wedge block. A connecting section is obliquely provided between the toggle section and the resistance section, and the connecting section is rotatably connected to the writing board body through a rotating shaft.

[0011] In some embodiments, the lock tongue assembly includes an outer shell fixed to the instrument panel frame, a lock tongue body disposed within the outer shell and partially exposed from the outer shell, and a second return spring disposed between the lock tongue body and the inner wall of the outer shell. The lock tongue body is provided with a connecting rod for driving the lock tongue body to slide.

[0012] A second wedge-shaped block for matching the lock tongue body is provided at the bottom of the writing tablet body. The second wedge-shaped block and the lock tongue body are both provided with chamfered surfaces relative to each other. When the writing tablet body slides into the instrument panel frame, the end face of the lock tongue body and the end face of the second wedge-shaped block contact each other to restrict the writing tablet body from sliding out of the instrument panel frame.

[0013] In some embodiments, a slider is slidably connected to the tablet body, and the slider is provided with a shifting block for pushing the connecting rod to move.

[0014] In some embodiments, the connecting rod includes a fixed section fixed to the lock tongue body, and an abutting section connected to the fixed section and used to abut the shift block. An arc-shaped transition section is provided between the abutting section and the fixed section, and an opening matching the connecting rod is provided on the outer shell.

[0015] In some embodiments, an end plate assembly is provided on the writing tablet body, and the end plate assembly includes an inner end plate fixed to the writing tablet body and an outer end plate fixed to the inner end plate. A sliding rod is provided on the outer end plate, and the slider is slidably connected to the sliding rod, and a third return spring is provided between the outer end plate and the slider.

[0016] In some embodiments, the tablet body includes a first plate member and a second plate member rotatably connected to the first plate member.

[0017] In some embodiments, the end plate assembly is rotatably connected between the first plate and the second plate.

[0018] The beneficial effects of the technical solution provided by this application include:

[0019] An embodiment of the present application provides a writing tablet assembly with a two-stage locking mechanism, including an instrument panel assembly, a first locking mechanism and a second locking mechanism, wherein the instrument panel assembly includes an instrument panel frame, a slide rail fixed to the instrument panel frame, and a writing tablet body slidably connected to the slide rail; the first locking mechanism is arranged at the bottom of the writing tablet body, and is used to limit the writing tablet body from sliding into the instrument panel frame, the first locking mechanism includes a pull rod rotatably connected to the writing tablet body, and the end of the instrument panel frame is provided with a first stop block for abutting and limiting the pull rod; the second locking mechanism is used to limit the writing tablet body from sliding out of the instrument panel frame, and the second locking mechanism includes a lock tongue assembly fixed to the instrument panel frame, and is used to lock the writing tablet body.

[0020] In actual use, the instrument panel assembly includes an instrument panel frame, a slide rail fixed to the instrument panel frame, and a tablet body slidably connected to the slide rail. A first locking mechanism and a second locking mechanism are provided to respectively ensure that the tablet body is securely locked and limited when being withdrawn and pushed back. Specifically, the first locking mechanism is provided at the bottom of the tablet body and is used to limit the tablet body from sliding into the instrument panel frame. That is, when the tablet body is withdrawn, the first locking mechanism can prevent the tablet body from sliding into the instrument panel frame due to vehicle shaking, acceleration, or sudden braking, thereby ensuring reliable use of the tablet body when withdrawn. The first locking mechanism includes a pull rod rotatably connected to the tablet body. A first stop is provided at the end of the instrument panel frame for contacting the pull rod. When the tablet body is withdrawn, the first stop is provided at the end of the instrument panel frame. The first stop can contact the pull rod provided on the tablet body to prevent the tablet body from sliding. The second locking mechanism is used to limit the tablet body from sliding out of the instrument panel frame. That is, when the tablet body is in the pushed-back state, the second locking mechanism can prevent the tablet body from sliding out of the instrument panel frame. The second locking mechanism includes a lock tongue assembly fixed to the instrument panel frame for locking the tablet body. The lock tongue assembly provided on the instrument panel frame can ensure the tablet body is reliably locked when the tablet body is hidden and pushed back. Therefore, the solution of the present application can ensure that the tablet body is reliably locked and limited when both pulled out and pushed back, meeting the user's usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 A schematic diagram of the structure of a writing tablet assembly provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the lock tongue assembly and the instrument panel frame;

[0024] Figure 3 is a schematic diagram of a bolt assembly;

[0025] Figure 4 Schematic diagram of the structure of each component of the lock tongue assembly;

[0026] Figure 5 This is a bottom view of the tablet body;

[0027] Figure 6 for Figure 5 Schematic diagram of the movement and cooperation of the second wedge-shaped block and the partial structure of the lock tongue assembly at A in the middle;

[0028] Figure 7 This is a schematic diagram of the bottom of the tablet body;

[0029] Figure 8 A schematic diagram of the movement and coordination of the first stopper and the pull rod on the instrument panel frame;

[0030] Figure 9 Schematic diagram of the structure of the pull rod;

[0031] Figure 10 Schematic diagram of the structure of each component of the end plate assembly.

[0032] Reference numerals:

[0033] 1. Instrument panel frame; 2. Slide rail; 3. Writing board body; 4. Pull rod; 5. First stop block; 6. Lock tongue assembly; 7. End plate assembly; 8. Second wedge block; 9. Elastic sheet; 31. First return spring; 32. Slider; 33. First plate; 34. Second plate; 35. Cover plate; 41. First wedge block; 42. Push rod; 43. Push section; 44. Connecting section; 45. Interference section; 46. Rotating shaft; 61. Outer shell; 62. Lock tongue body; 63. Connecting rod; 64. Second return spring; 65. Opening; 71. Inner end plate; 72. Outer end plate; 73. Slide rod; 74. Third return spring; 321. Push block; 631. Fixed section; 632. Interference section; 633. Transition section. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] The embodiment of the present application provides a writing tablet assembly with a two-stage locking mechanism, which can solve the problem in the related art that the pull-out writing tablet on the car is difficult to be reliably locked when being pulled out and pushed back, thus affecting its use.

[0036] See also Figures 1 to 3 、 Figure 5 and Figure 8 As shown, an embodiment of the present application provides a writing tablet assembly with a two-stage locking mechanism, including an instrument panel assembly, a first locking mechanism and a second locking mechanism, the instrument panel assembly including an instrument panel frame 1, a slide rail 2 fixed to the instrument panel frame 1 and a writing tablet body 3 slidably connected to the slide rail 2; the first locking mechanism is arranged at the bottom of the writing tablet body 3, for limiting the writing tablet body 3 from sliding into the instrument panel frame 1, the first locking mechanism includes a pull rod 4 rotatably connected to the writing tablet body 3, and the end of the instrument panel frame 1 is provided with a first stop 5 for resisting the limiting pull rod 4; the second locking mechanism is used to limit the writing tablet body 3 from sliding out of the instrument panel frame 1, the second locking mechanism includes a lock tongue assembly 6 fixed to the instrument panel frame 1 for locking the writing tablet body 3.

[0037] In actual use, the instrument panel assembly includes an instrument panel frame 1 , a slide rail 2 fixed to the instrument panel frame 1 , and a writing board body 3 slidably connected to the slide rail 2 . A first locking mechanism and a second locking mechanism are provided to ensure that the writing tablet is reliably locked and limited when it is pulled out and pushed back, respectively; specifically, the first locking mechanism is provided at the bottom of the writing tablet body 3, and is used to limit the writing tablet body 3 from sliding into the dashboard frame 1, that is, when the writing tablet body 3 is pulled out, the setting of the first locking mechanism can prevent the writing tablet body 3 from sliding into the dashboard frame 1 due to vehicle shaking, acceleration or sudden braking, thereby ensuring the reliable use of the writing tablet body 3 when it is pulled out; the first locking mechanism includes a pull rod 4 rotatably connected to the writing tablet body 3, and the end of the dashboard frame 1 is provided with a first stop block 5 for resisting the limiting pull rod 4. When the writing tablet body 3 is pulled out, the end of the dashboard frame 1 is provided with a first stop block 5, and the first stop block 5 can resist the pull rod 4 provided on the limiting writing tablet body 3 to prevent the writing tablet body 3 from sliding. The second locking mechanism is used to limit the tablet body 3 from sliding out of the instrument panel frame 1. That is, when the tablet body 3 is in the pushed-back state, the second locking mechanism can prevent the tablet body 3 from sliding out of the instrument panel frame 1. The second locking mechanism includes a lock tongue assembly 6 fixed to the instrument panel frame 1 for locking the tablet body 3. The lock tongue assembly 6 provided on the instrument panel frame 1 can ensure the reliable locking of the tablet body 3 when the tablet body 3 is hidden and pushed back. Therefore, the solution of the present application can ensure that the tablet body 3 is reliably locked and limited both when it is pulled out and when it is pushed back, thereby meeting the user's usage requirements.

[0038] In some optional embodiments, such as Figures 7 to 9 As shown, the end of the pull rod 4 is provided with a first wedge block 41 for matching the first stop block 5. The first stop block 5 and the first wedge block 41 are both provided with chamfered surfaces relative to each other. When the writing tablet body 3 slides out of the instrument panel frame 1, the end surface of the first stop block 5 and the end surface of the first wedge block 41 contact each other to limit the writing tablet body 3 from sliding into the instrument panel frame 1. The first locking mechanism is arranged at the bottom of the writing tablet body 3, and is used to limit the writing tablet body 3 from sliding into the instrument panel frame 1. That is, when the writing tablet body 3 is pulled out, the setting of the first locking mechanism can prevent the writing tablet body 3 from sliding into the instrument panel frame 1 due to vehicle shaking, acceleration or sudden braking, thereby ensuring the reliable use of the writing tablet body 3 when it is pulled out; the first locking mechanism includes a pull rod 4 rotatably connected to the writing tablet body 3, and the end of the instrument panel frame 1 is provided with a first stop 5 for contacting the limiting pull rod 4. When the writing tablet body 3 is pulled out, the end of the instrument panel frame 1 is provided with a first stop 5, and the first stop 5 can contact the pull rod 4 provided on the limiting writing tablet body 3 to prevent the writing tablet body 3 from sliding.

[0039] like Figure 5As shown, an elastic member 9 is provided at the end of the tablet body 3, which can play a certain buffering role during the contact between the end of the tablet body 3 and the dashboard frame 1 during the process of the tablet body 3 sliding into the dashboard frame 1, thereby avoiding violent collisions between the structures.

[0040] In actual use, such as Figures 7 to 9 As shown, Figure 8 Schematic diagram of the movement of the pull rod 4 and the first stopper 5 when the tablet body 3 is pulled out, the end of the pull rod 4 is provided with a first wedge block 41. When the tablet body 3 slides out of the instrument panel frame 1, the end face of the first stopper 5 and the end face of the first wedge block 41 contact each other to limit the tablet body 3 from sliding into the instrument panel frame 1. In addition, the first stopper 5 and the first wedge block 41 are both provided with chamfered surfaces relative to each other, and the pull rod 4 is rotatably connected to the tablet body 3. When the tablet body 3 is pulled out, the end of the pull rod 4 is provided with the chamfered surface of the first wedge block 41. The first wedge 41 and the first stop 5 are connected to the instrument panel frame 1. Due to the chamfered surface and the fact that the pull rod 4 is rotatably connected to the tablet body 3, when the chamfered surface of the first wedge 41 and the first stop 5 come into contact, the pull rod 4 rotates, causing the first wedge 41 of the pull rod 4 to move from the side of the first stop 5 closer to the instrument panel frame 1 to the side of the first stop 5 farther from the instrument panel frame 1. This causes the end surface of the first stop 5 and the end surface of the first wedge 41 to come into contact with each other, thereby restricting the tablet body 3 from sliding into the instrument panel frame 1. During this process, the chamfered surfaces of the first wedge 41 and the first stop 5 facilitate automatic rotation of the pull rod 4 when the tablet body 3 is withdrawn, facilitating the withdrawal of the tablet body 3.

[0041] In some optional embodiments, such as Figures 7 to 9 As shown, a first return spring 31 is provided between the pull rod 4 and the tablet body 3, and a lever 42 is provided on the end of the pull rod 4 away from the first wedge block 41. When the first locking mechanism needs to be released from the limit on the tablet body 3, the lever 42 is simply used to move the pull rod 4, causing the pull rod 4 to rotate. This cancels the mutual interference limit between the end face of the first stop block 5 and the end face of the first wedge block 41. The user uses the lever 42 to move the pull rod 4, causing the pull rod 4 to rotate, and at the same time pushes back the tablet body 3, thereby pushing the tablet body 3 back and hiding it. The first return spring 31 is provided between the pull rod 4 and the tablet body 3. The provision of the first return spring 31 enables the pull rod 4 to automatically return to its original position after being rotated by force, making it convenient to use.

[0042] In some optional embodiments, such as Figure 9As shown, the pull rod 4 is in a broken line shape and includes a toggle section 43 for connecting to the first return spring 31 and provided with a toggle lever 42, and an abutment section 45 provided with a first wedge block 41. A connecting section 44 is disposed obliquely between the toggle section 43 and the abutment section 45. The connecting section 44 is rotatably connected to the tablet body 3 via a rotating shaft 46. The connecting section 44 is rotatably connected to the tablet body 3 via the rotating shaft 46 to ensure the rotation of the pull rod 4. This arrangement of the connecting section 44 obliquely disposed between the toggle section 43 and the abutment section 45 gives the pull rod 4 an overall broken line shape, which avoids occupying excessive space and facilitates user convenience.

[0043] In some optional embodiments, such as Figures 2 to 6 As shown, the lock tongue assembly 6 includes an outer shell 61 fixed to the instrument panel frame 1, a lock tongue body 62 arranged in the outer shell 61 and partially exposed from the outer shell 61, and a second return spring 64 arranged between the lock tongue body 62 and the inner wall of the outer shell 61. The lock tongue body 62 is provided with a connecting rod 63 for driving the lock tongue body 62 to slide; a second wedge block 8 for matching the lock tongue body 62 is provided at the bottom of the writing board body 3, and the second wedge block 8 and the lock tongue body 62 are both provided with chamfered surfaces relative to each other. When the writing board body 3 slides into the instrument panel frame 1, the end face of the lock tongue body 62 and the end face of the second wedge block 8 contact each other to prevent the writing board body 3 from sliding out of the instrument panel frame 1.

[0044] In actual use, the second locking mechanism is used to restrict the tablet body 3 from sliding out of the instrument panel frame 1. Specifically, when the tablet body 3 is in the pushed-back state, the second locking mechanism can prevent the tablet body 3 from sliding out of the instrument panel frame 1. The second locking mechanism includes a lock tongue assembly 6 fixed to the instrument panel frame 1 for locking the tablet body 3. The lock tongue assembly 6 provided on the instrument panel frame 1 can ensure the reliability of locking the tablet body 3 when the tablet body 3 is hidden and pushed back. Specifically, when the tablet body 3 slides into the instrument panel frame 1, that is, when the tablet body 3 is pushed back, the end face of the lock tongue body 62 and the end face of the second wedge block 8 contact each other to restrict the tablet body 3 from sliding out of the instrument panel frame 1.

[0045] In this process, if Figures 5 to 7As shown, when the tablet body 3 is pushed back, the second wedge block 8 provided at the bottom of the tablet body 3 contacts the lock tongue body 62 of the lock tongue assembly 6, causing the lock tongue body 62 to slide toward the outer shell 61, and the second wedge block 8 of the tablet body 3 moves from one side of the lock tongue assembly 6 to the other. At this time, with the help of the second return spring 64, the lock tongue body 62 rebounds to its original position, and the end surface of the second wedge block 8 and the end surface of the lock tongue body 62 contact each other. The lock tongue assembly 6 limits the tablet body 3, preventing the tablet body 3 from sliding, that is, preventing the tablet body 3 from sliding out of the instrument panel frame 1. The second wedge block 8 and the lock tongue body 62 are both provided with chamfered surfaces relative to each other. The provision of the chamfered surfaces can facilitate the second wedge block 8 to contact the lock tongue body 62, allowing the lock tongue body 62 to move. When the end face of the second wedge block 8 and the end face of the lock tongue body 62 collide with each other, and the lock tongue assembly 6 limits the tablet body 3, if you want to unlock it, you can move the connecting rod 63 so that the connecting rod 63 drives the lock tongue body 62 to slide toward the outer shell 61. While the lock tongue body 62 slides, the user pulls out the tablet body 3 to unlock the tablet body 3.

[0046] This method of using the lock tongue assembly 6 to lock the writing tablet body 3 is more reliable than the previously commonly used single-stage maze locking structure. Even if the vehicle shakes, the lock tongue assembly 6 can limit the writing tablet body 3 in the height direction to prevent the writing tablet body 3 from sliding out.

[0047] In some optional embodiments, such as Figure 6 As shown, Figure 6 The figure is a schematic diagram of the movement of the slider 32 and the lock tongue body 62 in the mechanism. The slider 32 is slidably connected to the tablet body 3. The slider 32 is provided with a shift block 321 for pushing the connecting rod 63 to move. In actual use, the slider 32 is slid so that the shift block 321 provided on the slider 32 drives the connecting rod 63 to move, so that the connecting rod 63 drives the lock tongue body 62 to slide toward the outer shell 61. While the lock tongue body 62 slides, the user pulls out the tablet body 3 to unlock the tablet body 3.

[0048] In some optional embodiments, such as Figure 3 and Figure 4 As shown, the connecting rod 63 includes a fixed section 631 fixed to the lock tongue body 62, and a contact section 632 connected to the fixed section 631 for contacting the shift block 321. An arc-shaped transition section 633 is provided between the contact section 632 and the fixed section 631, and an opening 65 matching the connecting rod 63 is provided on the outer shell 61.

[0049] In some optional embodiments, such as Figure 7 and Figure 10As shown, the tablet body 3 is provided with an end plate assembly 7. This end plate assembly 7 includes an inner end plate 71 fixed to the tablet body 3 and an outer end plate 72 fixed to the inner end plate 71. A slide rod 73 is provided on the outer end plate 72, and the slider 32 is slidably connected to the slide rod 73. A third return spring 74 is provided between the outer end plate 72 and the slider 32. The slider 32 can slide along the slide rod 73 on the end plate assembly 7. The provision of the third return spring 74 enables the slider 32 to automatically return to its original position after movement. During use, a cover plate 35 is provided at one end of the slider 32 to ensure that the slider 32 structure is securely installed.

[0050] In some optional embodiments, such as Figure 1 As shown, the tablet body 3 includes a first plate member 33 and a second plate member 34 rotatably connected to the first plate member 33. In some optional embodiments, the end plate assembly 7 is rotatably connected between the first plate member 33 and the second plate member 34.

[0051] The tablet body 3 can be configured as two pieces, including a first plate 33 and a second plate 34, which are rotatably connected. When in use, the tablet body 3 can be pulled out and unfolded, and the first plate 33 and the second plate 34 become a whole long tablet. When used and recycled, the second plate 34 can be rotated onto the first plate 33, folded, and then pushed back to its original position. This can reduce the length of the tablet body 3 after it is recycled into the dashboard, making it easier to store the tablet body 3 within the limited space inside the dashboard. After use, the tablet body 3 can be unfolded to form a longer board for easy use. The end plate assembly 7 is rotatably connected between the first plate 33 and the second plate 34, and will not affect the rotation of the second plate 34.

[0052] In summary, the writing tablet assembly with a two-stage locking mechanism of the present application includes an instrument panel assembly, a first locking mechanism and a second locking mechanism. The instrument panel assembly includes an instrument panel frame 1, a slide rail 2 fixed to the instrument panel frame 1 and a writing tablet body 3 slidably connected to the slide rail 2; the first locking mechanism is arranged at the bottom of the writing tablet body 3, and is used to limit the writing tablet body 3 from sliding into the instrument panel frame 1. The first locking mechanism includes a pull rod 4 rotatably connected to the writing tablet body 3, and the end of the instrument panel frame 1 is provided with a first stop 5 for resisting the limiting pull rod 4; the second locking mechanism is used to limit the writing tablet body 3 from sliding out of the instrument panel frame 1, and the second locking mechanism includes a lock tongue assembly 6 fixed to the instrument panel frame 1 for locking the writing tablet body 3.

[0053] In actual use, the instrument panel assembly includes an instrument panel frame 1 , a slide rail 2 fixed to the instrument panel frame 1 , and a writing board body 3 slidably connected to the slide rail 2 . A first locking mechanism and a second locking mechanism are provided to ensure that the writing tablet is reliably locked and limited when it is pulled out and pushed back, respectively; specifically, the first locking mechanism is provided at the bottom of the writing tablet body 3, and is used to limit the writing tablet body 3 from sliding into the dashboard frame 1, that is, when the writing tablet body 3 is pulled out, the setting of the first locking mechanism can prevent the writing tablet body 3 from sliding into the dashboard frame 1 due to vehicle shaking, acceleration or sudden braking, thereby ensuring the reliable use of the writing tablet body 3 when it is pulled out; the first locking mechanism includes a pull rod 4 rotatably connected to the writing tablet body 3, and the end of the dashboard frame 1 is provided with a first stop block 5 for resisting the limiting pull rod 4. When the writing tablet body 3 is pulled out, the end of the dashboard frame 1 is provided with a first stop block 5, and the first stop block 5 can resist the pull rod 4 provided on the limiting writing tablet body 3 to prevent the writing tablet body 3 from sliding. The second locking mechanism is used to limit the tablet body 3 from sliding out of the instrument panel frame 1. That is, when the tablet body 3 is in the pushed-back state, the second locking mechanism can prevent the tablet body 3 from sliding out of the instrument panel frame 1. The second locking mechanism includes a lock tongue assembly 6 fixed to the instrument panel frame 1 for locking the tablet body 3. The lock tongue assembly 6 provided on the instrument panel frame 1 can ensure the reliable locking of the tablet body 3 when the tablet body 3 is hidden and pushed back. Therefore, the solution of the present application can ensure that the tablet body 3 is reliably locked and limited both when it is pulled out and when it is pushed back, thereby meeting the user's usage requirements.

[0054] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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 operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0055] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0056] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A writing tablet assembly with a two-stage locking mechanism, characterized in that: include: An instrument panel assembly, comprising an instrument panel frame (1), a slide rail (2) fixed to the instrument panel frame (1), and a writing board body (3) slidably connected to the slide rail (2); a first locking mechanism, the first locking mechanism being arranged at the bottom of the tablet body (3) and being used to limit the tablet body (3) from sliding into the instrument panel frame (1); the first locking mechanism comprising a pull rod (4) rotatably connected to the tablet body (3); and a first stopper (5) being provided at the end of the instrument panel frame (1) for abutting against and limiting the pull rod (4); a second locking mechanism, the second locking mechanism being used to restrict the tablet body (3) from sliding out of the instrument panel frame (1), the second locking mechanism comprising a locking tongue assembly (6) fixed to the instrument panel frame (1) and used to lock the tablet body (3); The end of the pull rod (4) is provided with a first wedge block (41) for matching the first stop block (5), and the first stop block (5) and the first wedge block (41) are both provided with chamfered surfaces relative to each other. When the tablet body (3) slides out of the instrument panel frame (1), the end surface of the first stop block (5) and the end surface of the first wedge block (41) contact each other to limit the tablet body (3) from sliding into the instrument panel frame (1); The lock tongue assembly (6) includes an outer shell (61) fixed to the instrument panel frame (1), a lock tongue body (62) arranged in the outer shell (61) and partially exposed from the outer shell (61), and a second return spring (64) arranged between the lock tongue body (62) and the inner wall of the outer shell (61); and a connecting rod (63) for driving the lock tongue body (62) to slide is provided on the lock tongue body (62); A second wedge-shaped block (8) for matching the lock tongue body (62) is provided at the bottom of the tablet body (3), and the second wedge-shaped block (8) and the lock tongue body (62) are both provided with chamfered surfaces relative to each other. When the tablet body slides into the instrument panel frame (1), the end face of the lock tongue body (62) and the end face of the second wedge-shaped block (8) contact each other to restrict the tablet body (3) from sliding out of the instrument panel frame (1).

2. A writing tablet assembly with a two-stage locking mechanism as claimed in claim 1, characterized in that: A first return spring (31) is provided between the pull rod (4) and the writing board body (3), and a shift rod (42) is provided on the end of the pull rod (4) away from the first wedge block (41).

3. A writing tablet assembly with a two-stage locking mechanism as claimed in claim 2, characterized in that: The pull rod (4) is in a broken line shape, and includes a toggle section (43) for connecting to the first return spring (31) and provided with the toggle rod (42), and a contact section (45) provided with the first wedge block (41). A connecting section (44) is obliquely provided between the toggle section (43) and the contact section (45), and the connecting section (44) is rotatably connected to the writing board body (3) via a rotating shaft (46).

4. The writing tablet assembly with a two-stage locking mechanism according to claim 1, characterized in that: A slider (32) is slidably connected to the writing board body (3), and a shifting block (321) is provided on the slider (32) for pushing the connecting rod (63) to move.

5. A writing tablet assembly with a two-stage locking mechanism as claimed in claim 4, characterized in that: The connecting rod (63) comprises a fixed section (631) fixed to the lock tongue body (62), and an abutting section (632) connected to the fixed section (631) and used to abut the shift block (321). An arc-shaped transition section (633) is provided between the abutting section (632) and the fixed section (631). An opening (65) matching the connecting rod (63) is provided on the outer shell (61).

6. A writing tablet assembly with a two-stage locking mechanism as claimed in claim 5, characterized in that: An end plate assembly (7) is provided on the writing board body (3), and the end plate assembly (7) includes an inner end plate (71) fixed to the writing board body (3) and an outer end plate (72) fixed to the inner end plate (71). A sliding rod (73) is provided on the outer end plate (72), and the slider (32) is slidably connected to the sliding rod (73). A third return spring (74) is provided between the outer end plate (72) and the slider (32).

7. A writing tablet assembly with a two-stage locking mechanism as claimed in claim 6, characterized in that: The writing board body (3) comprises a first plate component (33) and a second plate component (34) rotatably connected to the first plate component (33).

8. The writing tablet assembly with a two-stage locking mechanism according to claim 7, characterized in that: The end plate assembly (7) is rotatably connected between the first plate member (33) and the second plate member (34).

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