Writing board capable of being manually lifted and self-reset
By designing a manual lifting and self-reset writing board, the lifting and energy storage components are used to achieve height adjustment and rapid reset, the health problems caused by the fixed structure of the existing writing table are solved and operating efficiency and comfort are improved.
Patent Information
- Application Number
- CN202420675364.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-04-02
AI Technical Summary
The existing writing operator table is a fixed structure and its height does not conform to human-computer interaction, which causes the driver to bend over and arch his back during writing, which affects his physical health. He urgently needs a writing board with adjustable height.
A writing board that can be manually lifted and lowered and reset is designed, using lifting components and energy storage components. Different height adjustments are achieved through sliding of gear pins on the gear slot. When the gear pin moves to a preset threshold, the energy storage component drives the lifting components to return to the initial position, achieving rapid reset.
The height adjustment of the writing board is achieved, avoiding the health problems caused by bow-back office work, making the operation faster and more convenient, and does not affect the attention of the operator.
Smart Images
Figure CN222571958U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of rail transportation, in particular to a writing board which can be manually lifted and lowered and automatically reset. Background Art
[0002] In the rail transit industry, rail trains, locomotives or EMUs are equipped with writing desks inside to facilitate drivers or other passengers to write or record relevant information.
[0003] However, the existing writing table is a fixed structure, and the height of the writing table does not meet the requirements of human-computer interaction, which causes the driver to bend over and arch his back to write, which seriously affects the driver's health. Therefore, there is an urgent need for a writing board with adjustable height to facilitate flexible operation by the driver, while also taking into account operability to avoid affecting the driver's normal work during operation. Utility Model Content
[0004] Therefore, the technical problem to be solved by the utility model is how to realize the problem of adjustable and convenient adjustment of the writing board. To this end, a writing board that can be manually raised and lowered and reset itself comprises:
[0005] ontology;
[0006] A panel, wherein the panel is rotatably connected to the body;
[0007] A lifting assembly, one end of which is connected to the panel, and the other end of which is rotatably connected to the body, the lifting assembly is provided with a plurality of gear slots, gear pins and limiting structures, and the gear pins slide on the gear slots;
[0008] An energy storage component, one end of which is connected to the body, and the other end of which is connected to the panel;
[0009] When the gear pin moves to a preset threshold value and the external force applied to the panel is cancelled, the gear pin cooperates with the limiting structure, and the energy storage component drives the lifting component to return to the initial position.
[0010] The limiting structure comprises a limiting member, the limiting member is provided with a limiting groove, and the limiting groove is located on the movement track of the shift pin.
[0011] The lifting assembly includes a lifting rod and a lifting sleeve, wherein the lifting sleeve is provided with a cavity; the lifting rod extends to the cavity and moves relative to the lifting sleeve, the gear pin cooperates with the lifting rod, the limiting member is accommodated in the cavity, the limiting member is located on the movement trajectory of the lifting rod, and the gear slot is provided on the lifting sleeve.
[0012] The lifting assembly further comprises a linkage member, wherein the linkage member is connected to the gear pin, and the linkage member cooperates and links with the lifting rod.
[0013] The lifting rod is provided with a fixed cavity, the linkage member is accommodated in the fixed cavity and the linkage member is movably arranged relative to the fixed cavity, and the linkage member and the limiting member are arranged in parallel.
[0014] The lifting assembly also includes a first elastic member, the fixed cavity is provided with a groove, one end of the linkage member is provided with a hook portion that cooperates with the groove, one end of the first elastic member is against the fixed cavity, the other end of the first elastic member is against the linkage member, and the first elastic member is located between the gear pin and the hook portion.
[0015] The lifting sleeve is provided with a gear cavity, the gear slot is arranged in the gear cavity, the gear cavity also includes a first extension part, a second extension part and a vertical part, the two ends of the vertical part are respectively connected with the first extension part and the second extension part, the side surface of the vertical part is connected with the gear slot, and the gear pin slides in the gear cavity.
[0016] The lifting rod is provided with a driving part, and the limiting member is located on the motion track of the driving part.
[0017] The limiting member is provided with a damping portion, and the damping portion abuts against the cavity.
[0018] The connection point between the panel and the body is a first connection point, the connection point between the lifting assembly and the body is a second connection point, and the connection point between the lifting assembly and the panel is a third connection point. Imaginary connecting lines of the first connection point, the second connection point, and the third connection point form an acute triangle.
[0019] The energy storage assembly includes at least one tension spring; or the energy storage assembly includes a gas spring.
[0020] The technical solution of the utility model has the following advantages:
[0021] 1. The utility model provides a manually liftable and self-resetting writing board. With this structure, the panel can be driven to adjust the height of the panel during use. The gear pin slides in different gear slots to achieve different height adjustment effects. At this time, the energy storage component continues to store energy. When the gear pin moves to the preset threshold, the force applied to the panel is canceled. The gear pin cooperates with the limit structure. At this time, the gear pin will not enter the gear slot, but directly return to the initial position, achieving a rapid reset effect of the panel. Compared with the press adjustment method in the lifting technology, this structure can quickly return to the initial position, will not affect the operator's attention, and makes the operation faster and more convenient.
[0022] 2. The utility model provides a manually liftable and self-resetting writing board, in which the limit groove and the shift pin cooperate to form a limit effect of the shift pin, preventing the shift pin from sliding into the shift groove and affecting the resetting effect.
[0023] 3. The utility model provides a manually liftable and self-resetting writing board. The lifting rod cooperates with the lifting sleeve to achieve the lifting effect. In addition, the gear and rack can also cooperate. The lifting rod cooperates with the limiter, so that when the lifting rod moves, the limiter also moves, thereby ensuring the subsequent cooperation effect between the limiter and the gear pin.
[0024] 4. The utility model provides a manually liftable and self-resetting writing board. The setting of the linkage part forms a coordination effect between the lifting rod and the linkage part. When the linkage part moves, the gear pin can slide in the gear slot.
[0025] 5. The utility model provides a manually liftable and self-resetting writing board, in which the fixing cavity cooperates with the linkage member, thereby reducing the thickness produced by the cooperation between the lifting rod and the linkage member, improving the convenience of installation, and making the lifting rod more convenient to move.
[0026] 6. The utility model provides a manually liftable and self-resetting writing board. The setting of the first elastic member forms a pushing effect of the linkage member, so that the gear pin can better enter the gear slot to form a limiting effect between the gears. A small rotating structure is formed between the hook and the groove, so that the linkage member produces different movement forms in the fixed cavity, and the linkage member will not fall off.
[0027] 7. The utility model provides a manually liftable and self-resetting writing board, and the gear cavity adopts this structural setting to better achieve the effect of gear fixing and rapid resetting.
[0028] 8. The utility model provides a manually liftable and self-resetting writing board, wherein the driving part drives the limiter to move, and when resetting, the gear pin 15 moves to drive the limiter to move.
[0029] 9. The utility model provides a manually liftable and self-resetting writing board, and the damping part is provided to form a damping effect, so that a certain hand feeling is provided during the lifting and sliding process.
[0030] 10. The utility model provides a manually liftable and self-resetting writing board, wherein three connection points form a triangular structure, so that the panel can be more suitable for human-computer interaction, and the panel can be adjusted to different heights by rotating to form different tilt angles.
[0031] 11. The utility model provides a manually liftable and self-resetting writing board. The setting of the tension spring or gas spring can form better energy storage. During the resetting process, the energy storage component can quickly achieve the resetting effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0033] Figure 1 A schematic diagram of the structure of a writing board that can be manually lifted and reset;
[0034] Figure 2 A side view of a manually liftable and self-resetting writing board provided by the utility model;
[0035] Figure 3 A schematic diagram of the partial structure of a manually liftable and self-resetting writing board provided by the utility model;
[0036] Figure 4 for Figure 3 Side view of
[0037] Figure 5 for Figure 3 Side view of
[0038] Figure 6 A schematic diagram of the structure of the lifting assembly provided by the utility model;
[0039] Figure 7 yes Figure 6 Exploded diagram of
[0040] Figure 8 A schematic diagram of the structure of the lifting assembly provided by the utility model;
[0041] Fig. 9 yes Figure 8 Exploded diagram of
[0042] Fig.10 A schematic diagram of the matching structure of the lifting rod, linkage member and limit member provided by the utility model;
[0043] Fig.11 A schematic diagram of the matching structure of the lifting rod, linkage member and limit member provided by the utility model;
[0044] Fig.12 This is a structural schematic diagram of the lifting assembly provided by the utility model.
[0045] Description of reference numerals:
[0046] 11. Main body; 12. Panel; 13. Lifting assembly; 14. Shift slot; 15. Shift pin; 16. Energy storage assembly; 17. Limiting member; 18. Lifting rod; 19. Lifting sleeve; 20. Linking member; 21. First elastic member; 23. Fixed bracket; 24. Support beam; 25. Support cover; 26. First connecting member; 27. Second connecting member; 28. Limiting frame; 161. Tension spring; 171. Limiting member slot; 172, through hole; 173, damping part; 181, fixing cavity; 182, groove; 183, fixing slot; 184, driving part; 191, cavity; 192, gear cavity; 201, hook; 202, positioning protrusion; 221, first connection point; 222, second connection point; 223, third connection point; 1921, first extension part; 1922, second extension part; 1923, vertical part. DETAILED DESCRIPTION
[0047] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0048] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0050] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0051] Example 1
[0052] This embodiment provides a writing board that can be manually raised and lowered and reset. Figure 1-12 As shown, including:
[0053] The body 11 is used to cooperate with a locomotive, a rail train or a motor vehicle to form a connection and fixation effect. The body 11 also plays the role of supporting and fixing the panel 12 and allowing the panel 12 to rotate relative to the body 11.
[0054] The panel 12 is rotatably connected to the body 11. Here, the panel 12 can be rotatably connected to the body 11 at the long side, or at the short side. In this embodiment, the panel 12 is arranged horizontally, with its short side located at both sides, and its long side located at the upper and lower ends. The panel 12 can be rotatably connected to the body 11 at one side close to the upper end, or at one side close to the lower end. In this embodiment, only the rotatably connected panel 12 at one side close to the lower end is used as an example for description.
[0055] The lifting assembly 13 has a lifting function. One end of the lifting assembly 13 is connected to the panel 12, and the other end of the lifting assembly 13 is rotatably connected to the body 11, so that the panel 12 can be adjusted to a corresponding height through the lifting assembly 13 to meet the use requirements in different situations. The lifting assembly 13 is provided with a plurality of gear slots 14, gear pins 15 and limiting structures. The gear pins 15 slide on the gear slots 14. The gear pins 15 are in one gear slot 14 to form a gear height limiting effect. When the gear pins 15 slide into the adjacent gear slot 14, they move to the height of another gear.
[0056] Energy storage component 16, one end of which is connected to body 11, and the other end of which is connected to panel 12. Energy storage component 16 is used for energy storage effect, and when panel 12 is rotated to adjust different angles, energy storage component 16 continuously stores energy, thereby ensuring rapid return to the initial position.
[0057] The gear pin 15 moves to a preset threshold value, where the preset threshold value can be adjusted according to actual needs, and can be an interval or a value, and those skilled in the art can adjust it according to actual needs. In this embodiment, the preset threshold value is the gear slot 14 that exceeds the highest position. When an external force is applied to the panel 12, the panel 12 can rotate relative to the body 11, thereby adjusting the angle of the panel 12, which is equivalent to adjusting the height of the panel 12. When the external force applied to the panel 12 is cancelled, the gear pin 15 cooperates with the limiting structure, where the cooperation specifically limits the gear pin 15 from sliding into the gear slot 14, and at this time, the energy storage component 16 drives the lifting component 13 to move back to the initial position. The initial position can specifically be the lowest position, where the angle between the panel 12 and the body 11 is 0°, which is equivalent to the panel 12 and the body 11 being in a parallel state. Under the action of the external force, the panel 12 rotates relative to the body 11 to form angles at different positions, thereby achieving the effect of height adjustment. With this structure, the panel 12 can be driven to adjust the height of the panel 12 during use, and the gear pin 15 slides in different gear slots 14 to achieve different height adjustment effects. At this time, the energy storage component 16 continues to store energy. When the gear pin 15 moves to the preset threshold, the force applied to the panel 12 is canceled at this time, and the gear pin 15 cooperates with the limit structure. At this time, the gear pin 15 will not enter the gear slot 14, but directly return to the initial position, achieving the rapid reset effect of the panel 12. Compared with the pressing adjustment method in the lifting technology, this structure can quickly return to the initial position, will not affect the operator's attention, and make the operation faster and more convenient. The height of the panel 12 is adjustable, so that the operator's operation mode changes from hunched back office to sitting office, which greatly avoids various diseases that affect health caused by hunched back for too long, and can also improve work efficiency. The writing board in this embodiment can meet the use needs of operators with different viewing angles through manual lifting and self-resetting functions. The operator can easily adjust the angle of the writing surface by operating the height adjustment telescopic rod.
[0058] Specifically, as attached Figure 6-12As shown, the limiting structure includes a limiting member 17, and the limiting member 17 is provided with a limiting groove 171, and the limiting groove 171 is located on the movement trajectory of the shift pin 15. When the shift pin 15 moves to the preset threshold, the force applied to the panel 12 disappears, and the shift pin 15 moves into the limiting groove 171. At this time, the shift pin 15 cannot slide from the limiting groove 171, so the shift pin 15 cannot slide into the shift groove 14, so under the action of the restoring force of the energy storage component 16, the shift pin 15 will also return to the initial position, forming a limiting linkage effect. The cooperation between the limiting groove 171 and the shift pin 15 forms a limiting effect of the shift pin 15, preventing the shift pin 15 from sliding into the shift groove 14 and affecting the reset effect. The limiting groove 171 and the shift pin 15 can be an adaption structure, or the depth of the shift groove 14 can be greater than the size of the shift pin 15, or the shift groove 14 and the shift pin 15 can form an interference fit. In addition, the limit member 17 can also be engaged with the shift pin 15 to form a limit fixation for the shift pin 15 to prevent the shift pin 15 from sliding into the shift slot 14; the limit member 17 can also form a hooking fit with the shift pin 15, that is, the shift member has a configuration structure, and the configuration structure cooperates with the shift pin 15 to form a limit locking effect.
[0059] Specifically, as attached Figure 6-12As shown, the lifting assembly 13 includes a lifting rod 18 and a lifting sleeve 19, and the lifting sleeve 19 is provided with a cavity 191; the lifting rod 18 extends to the cavity 191 and moves relative to the lifting sleeve 19, that is, the lifting rod 18 partially extends into the cavity 191, and the lifting rod 18 partially slides in the cavity 191. The lifting rod 18 can be connected to the panel 12, and the lifting sleeve 19 is connected to the body 11, and the position where the lifting rod 18 and the lifting sleeve 19 cooperate is located between the body 11 and the panel 12; or the lifting rod 18 can be connected to the body 11, and the lifting sleeve 19 is connected to the panel 12, and the position where the lifting rod 18 and the lifting sleeve 19 cooperate is located between the body 11 and the panel 12. In this embodiment, only one end of the lifting rod 18 is connected to the panel 12, and one end of the lifting sleeve 19 is connected to the body 11. Here, it should be noted that the end of the lifting rod 18 connected to the panel 12 is a fixed connection, and the end of the lifting sleeve 19 connected to the body 11 is a rotating connection. Those skilled in the art can also make changes according to actual needs, that is, the lifting rod 18 is connected to the panel 12 in a rotating manner, and the lifting sleeve 19 is connected to the body 11 in a fixed manner. In addition, the lifting assembly 13 can also be a structure such as a gear and a rack. In this embodiment, the gear pin 15 cooperates with the lifting rod 18, that is, the lifting rod 18 drives the gear pin 15 to move during the lifting movement, so that the gear pin 15 slides and switches in different gear slots 14. The limiter 17 is accommodated in the cavity 191, and the limiter 17 cooperates with the part of the lifting rod 18 located in the cavity 191, and the limiter 17 is located on the movement trajectory of the lifting rod 18. Taking this embodiment as an example, when the lifting rod 18 performs an ascending action, the lifting rod 18 will drive the limiter 17 to move upward. Conversely, when the lifting rod 18 is connected and cooperated with the body 11, that is, when the lifting rod 18 moves downward relative to the lifting sleeve 19, the lifting rod 18 will also drive the limiter 17 to move downward. The gear slot 14 is provided on the lifting sleeve 19. Here, the gear slot 14 can be located on one side of the side wall of the lifting sleeve 19, or the gear slot 14 can be provided on both sides of the lifting sleeve 19. It should be noted that the gear slots 14 on both sides are symmetrically arranged, and the gear pin 15 extends outward laterally, so that the gear pin 15 cooperates with the gear slot 14 to form a gear fixing effect. The cavity 191 is connected to the gear slot 14. The matching area between the gear pin 15 and the gear slot 14 can be adjusted according to actual needs. Taking this embodiment as an example, the gear slot 14 is provided on both sides of the lifting sleeve 19, and the gear pin 15 can be one end of which passes through the gear slot 14 and extends to the outside, thereby ensuring the fixing strength between the gear pin 15 and the gear slot 14; the gear pin 15 can also pass through the gear slot 14 at both ends and extend to the outside, further improving the fixing strength between the gear pin 15 and the gear slot 14. The cooperation between the lifting rod 18 and the lifting sleeve 19 realizes the lifting effect. In addition, it can also be a gear and a rack.The lifting rod 18 cooperates with the limiting member 17 , so that when the lifting rod 18 moves, the limiting member 17 also moves accordingly, thereby ensuring the subsequent cooperation effect between the limiting member 17 and the gear pin 15 .
[0060] Specifically, as attached Figure 6-12 As shown, the lifting assembly 13 also includes a linkage member 20, and the linkage member 20 is connected to the gear pin 15. The linkage member 20 and the gear pin 15 are in linkage cooperation, that is, when the linkage member 20 moves, the gear pin 15 also moves accordingly. The connection method between the linkage member 20 and the gear pin 15 can be welding, or it can be one-piece injection molding, or it can be other connection methods. The linkage member 20 cooperates with the lifting rod 18. When the lifting rod 18 is lifted, it will drive the linkage member 20 to move, thereby achieving a linkage effect. The setting of the linkage member 20 forms a cooperation effect between the lifting rod 18 and the linkage member 20. When the linkage member 20 moves, the gear pin 15 can slide in the gear slot 14.
[0061] Specifically, as attached Figure 6-12 As shown, the lifting rod 18 is provided with a fixed cavity 181. In this embodiment, the fixed cavity 181 is penetrated on both sides. The linkage member 20 is accommodated in the fixed cavity 181 and the linkage member 20 is movably arranged relative to the fixed cavity 181. Since the linkage member 20 is located in the fixed cavity 181, the lifting rod 18 will also drive the linkage member 20 to move during the lifting action. Since the gear pin 15 needs to switch between the gear slots 14, there needs to be a certain rotation space between the linkage member 20 and the fixed cavity 181 to facilitate the switching of the gear pin 15. When the linkage member 20 cooperates with the side of the lifting rod 18, the problem of rotation space may need to be considered. The linkage member 20 and the limit member 17 are arranged in parallel. Further, the linkage member 20 here can be arranged in a close fit with the limit member 17, which can reduce the overall thickness. The fixed cavity 181 cooperates with the linkage member 20, reduces the thickness generated by the cooperation between the lifting rod 18 and the linkage member 20, improves the convenience of installation, and makes the lifting rod 18 more convenient to move. In this embodiment, the side of the linkage member 20 can be coplanar with the side of the lifting rod 18, and the side here is specifically the longest side with the largest size, that is, the thickness of the linkage member 20 is the same as the thickness of the fixed cavity 181. The thickness of the linkage member 20 can also be less than the thickness of the fixed cavity 181. In this embodiment, the linkage member 20 is a sheet structure, which is specifically made of plastic material, made of durable PP or nylon material and similar high-performance materials, and has excellent physical stability and wear resistance.
[0062] Specifically, as attached Figure 6-12As shown, the lifting assembly 13 also includes a first elastic member 21, a groove 182 is provided in the fixed cavity 181, a hook 201 is provided at one end of the linkage member 20 to cooperate with the groove 182, one end of the first elastic member 21 is against the fixed cavity 181, and the other end of the first elastic member 21 is against the linkage member 20, and the first elastic member 21 is located between the gear pin 15 and the hook 201. The first elastic member 21 can be a spring or an elastic block or other elastic structure. In simple terms, the upper end of the linkage member 20 cooperates with the groove 182 to form a similar snap-fit effect, the lower end of the linkage member 20 cooperates with the gear pin 15, and the first elastic member 21 is against the side of the middle area of the linkage member 20 to form a pushing effect. Under the action of the first elastic member 21, due to the action of the groove 182, the end of the gear pin 15 that cooperates with the linkage member 20 will move toward the side away from the first elastic member 21, so that the gear pin 15 can slide into the gear slot 14, which is equivalent to forming a rotation effect. The position where the first elastic member 21 cooperates with the linkage member 20 is the rotation point. When the gear pin 15 slides to the adjacent gear slot 14, the connection between the two gear slots 14 acts on the gear pin 15, causing the first elastic member 21 to contract and store energy. When the gear pin 15 passes over the connection, the first elastic member 21 moves quickly, causing the gear pin 15 to quickly enter the adjacent gear slot 14. The setting of the first elastic member 21 forms a pushing effect of the linkage member 20, so that the gear pin 15 can better enter the gear slot 14, forming a limiting effect between the gears, and a small rotating structure is formed between the hook 201 and the groove 182, so that the linkage member 20 produces different movement forms in the fixed cavity 181, and the linkage member 20 will not fall off. In addition, the connection between the first elastic member 21 and the linkage member 20 can also be on the side close to the gear pin 15. For better explanation, taking the three-dimensional direction as an example, the sliding direction between the lifting sleeve 19 and the lifting rod 18 is the Z-axis direction, and the gear pin 15 extends toward the X-axis direction, then the movement direction of the end of the linkage member 20 that cooperates with the gear pin 15 in the fixed cavity 181 is the Y-axis direction, so that the gear pin 15 can slide into the gear slot 14. It should also be noted here that in order to ensure that the linkage part 20 better cooperates with the fixed cavity 181, a gap is provided at the cooperation point between the linkage part 20 and the fixed cavity 181, that is, there is a margin, so that the linkage part 20 can rotate better, and the size of the gap here can be adjusted according to actual needs.
[0063] Specifically, as attached Figure 6-12 As shown, a fixing groove 183 is provided in the fixing cavity 181, a positioning protrusion 202 is provided on the linkage member 20, one end of the first elastic member 21 is located in the fixing groove 183 and abuts against the bottom surface of the fixing groove 183, and the other end of the first elastic member 21 cooperates with the positioning protrusion 202 to form a positioning and fixing effect.
[0064] Specifically, as attached Figure 6-12As shown, the lifting sleeve 19 is provided with a gear cavity 192, and the gear slot 14 is arranged in the gear cavity 192. The gear cavity 192 also includes a first extension portion 1921, a second extension portion 1922 and a vertical portion 1923. The two ends of the vertical portion 1923 are respectively connected with the first extension portion 1921 and the second extension portion 1922. The side of the vertical portion 1923 is connected with the gear slot 14. Here, the vertical portion 1923 extends along the Z-axis direction, and the first extension portion 1921 is located at the lower end. When the gear pin 15 is located When the first extension part 1921 is formed, the whole is located at the initial position, that is, the panel 12 and the body 11 are arranged in parallel. When the external force acts on the panel 12, the panel 12 rotates, and the gear pin 15 enters the vertical part 1923. Then, under the action of the first elastic member 21, the gear pin 15 is pushed into the gear slot 14 at the bottom to form a fixed gear. When the external force continues to act, the gear pin 15 will enter the gear slot 14 from low to high in sequence. The second extension part 1922 is located at the upper end. When the gear pin 15 enters the second extension part 1922, it enters the preset threshold. When the external force is removed, the gear pin 15 will enter the limit groove 171, thereby limiting the gear pin 15 from moving toward the limit groove 171. At this time, the force of the first elastic member 21 fails. Under the action of the energy storage assembly 16, the lifting rod 18, the linkage member 20, and the limit member 17 will all move downward to return to the initial position. At this time, the gear pin 15 will slide along the Z-axis direction and along the vertical portion 1923 to the first extension portion 1921, thereby returning to the initial position. In this embodiment, the preset threshold value can be adjusted according to actual needs, and the length of the second extension portion 1922 can be lengthened to meet the needs of different situations. Under this structure, the operator only needs to lift the panel 12 up all the way until the panel 12 reaches the preset threshold value, and then let go. Under the action of the energy storage assembly 16, the panel 12 can be quickly reset without the operator having to press or perform other operations. The operation is simple and convenient, and it will not affect the normal work of the operator. The gear cavity 192 adopts this structural setting to better achieve the effect of gear fixation and rapid reset.
[0065] Specifically, as attached Figure 6-12As shown, in this embodiment, the shift slots 14 are distributed at equal intervals, and the shift slots 14 are barbed structures, that is, after the shift pin 15 enters the shift slot 14, it can only move in one direction. Taking this embodiment as an example, the angle of the panel 12 is adjusted by acting on the panel 12 through an external force, so that the shift pin 15 slides in the shift slot 14. The higher the position of the shift pin 15, the greater the flip angle of the panel 12. When it is necessary to reset, only an external force is required to pull the panel 12 to the preset threshold, which is equivalent to pulling the panel 12 to the top. Since the shift pin 15 and the second extension 1922 are against each other, the lifting rod 18 will not separate from the lifting sleeve 19 at this time. At this time, the force is canceled, that is, the panel 12 is released, and it can return to its original position under the action of the energy storage component 16. Simply put, pull the panel 12 to adjust the height one by one. When it is necessary to reset, pull it to the top suddenly, and then release the panel 12, and it can automatically return to its original state. The operation is simple and convenient.
[0066] Specifically, as attached Figure 6-12 As shown, the lifting rod 18 is provided with a driving part 184. In this embodiment, the driving part 184 is located at the lower end of the lifting rod 18, and the driving part 184 extends along the X-axis direction. The limiter 17 is located on the motion track of the driving part 184. Specifically, when the lifting rod 18 is in the process of rising, the limiter 17 is located on the rising motion track of the driving part 184, and the driving part 184 will drive the limiter 17 to move upward. The limiter 17 and the linkage member 20 are arranged in parallel, and the shift pin 15 will pass through the limiter 17 and extend along the X-axis direction. The limit member 17 is provided with a through hole 172, which is connected with the limit slot 171. Under normal conditions, the shift pin 15 extends through the through hole 172 to cooperate with the shift slot 14. However, when the external force is removed, the energy storage component 16 drives the movement. At this time, since the lifting rod 18 moves along the Z-axis direction, the shift pin 15 also moves. After the shift pin 15 enters the limit slot 171, the shift pin 15 and the limit slot 171 are abutted against each other, driving the limit member 17 to move downward along the Z-axis direction, thereby causing the lifting rod 18, the limit member 17, and the linkage member 20 to return to their initial positions.
[0067] Specifically, as attached Figure 6-12 As shown, the limiter 17 is provided with a damping portion 173, and the damping portion 173 is against the inner wall of the cavity 191. The setting of the damping portion 173 forms a damping effect, so that a certain hand feel is provided during the lifting and sliding process. Here, the damping portion 173 can be an elastic structure, and the elastic structure forms a damping effect with the inner wall of the cavity 191. The elastic structure can be integrally formed with the limiter 17, or the elastic structure can be a spring sheet that cooperates with the limiter 17. In this embodiment, the limiter 17 is a sheet structure, made of plastic material, and is made of durable PP or nylon material and similar high-performance materials, and has excellent physical stability and wear resistance.
[0068] Specifically, as attached Figure 1-5 As shown, the connection point between the panel 12 and the body 11 is the first connection point 221, and the first connection point 221 is specifically the rotation connection position between the panel 12 and the body 11 near the lower end. The connection point between the lifting assembly 13 and the body 11 is the second connection point 222, and the second connection point 222 is the rotation connection position between the lifting sleeve 19 and the body 11. The connection point between the lifting assembly 13 and the panel 12 is the third connection point 223, and the third connection point 223 is the connection position between the lifting rod 18 and the panel 12 near the upper end. The imaginary connection lines of the first connection point 221, the second connection point 222, and the third connection point 223 surround to form an acute triangle. The three connection points form a triangular structure, so that the panel 12 can be more in line with human-computer interaction. The panel 12 can be adjusted to different heights by rotation to form different tilt angles. Here, it should be noted that the connection points are shown from the side view. In fact, for example, the panel 12 and the body 11 are in an axial connection relationship, which is only for a better description of the connection relationship between the several. The number of lifting components 13 can be adjusted according to actual needs, and can be one group, two groups, or three groups. In this embodiment, the number of lifting components 13 is two groups as an example, and the two groups of lifting components 13 are symmetrically arranged, and the lifting components 13 connect the panel 12 and the body 11. In this embodiment, the relative rotation angle between the panel 12 and the body 11 can be adjusted according to actual needs, and can be 0°-90°, 0°-60°, or 0°-45°. In addition, those skilled in the art can also make the initial position not parallel to the horizontal plane according to actual needs, that is, form an initial position with a negative angle.
[0069] Specifically, as attached Figure 1-5 As shown, the energy storage component 16 includes at least one tension spring 161, that is, one end of the tension spring 161 is connected to the body 11, and the other end of the tension spring 161 is connected to the panel 12. When the number of the tension springs 161 is two, the two tension springs 161 are symmetrically arranged, and the two tension springs 161 form a V-shaped structure, that is, one end connected to the body 11 is at the same position, and the other ends of the two tension springs 161 are respectively connected to two positions of the panel 12. This structural arrangement makes the storage capacity larger and the movement smoother. In addition, there can be multiple tension springs 161. Or the energy storage component 16 includes a gas spring. The gas spring arrangement can also achieve the effects of energy storage and energy release. Those skilled in the art should know how to achieve the connection relationship between the body 11 and the panel 12, so it is not described in detail in this embodiment.
[0070] Specifically, the panel 12 may be transparent or semi-transparent, which can improve the visibility and accuracy of writing.
[0071] Specifically, as attached Figure 1-5As shown, the body 11 includes a support mechanism and a fixed bracket 23, and the fixed bracket 23 is used to cooperate with the locomotive to achieve a connection and fixation effect. The fixed bracket 23 is a U-shaped structure, and the fixed bracket 23 cooperates with the lifting sleeve 19 to form a rotational connection. The support mechanism plays a supporting effect. Specifically, the support mechanism includes a support beam 24 and a support cover 25. The support beam 24 is a U-shaped structure, and the lower end of the support beam 24 cooperates with the top surface of the fixed bracket 23 to form a connection and fixation effect. The lower end of the panel 12 cooperates with the support beam 24 to form a rotational connection, and the connection method here can be a hinge connection. The support cover 25 is a hollow structure, and the support cover 25 is located on the back of the panel 12. The support cover 25 is connected and fixed to the back of the panel 12. The support cover 25 cooperates with the panel 12 to form a chamber, and the lifting assembly 13 is partially accommodated in the chamber.
[0072] Specifically, as attached Figure 1-5 As shown, the panel 12 is fixed with a first connecting member 26 and a second connecting member 27, and the first connecting member 26 cooperates with the support beam 24 to form a hinge connection. The second connecting member 27 cooperates with the lifting rod 18 to form a fixing effect on one end of the lifting rod 18. The connection between the panel 12 and the first connecting member 26 and the second connecting member 27 can be bolted, welded, or other fixing methods.
[0073] Specifically, as attached Figure 1-5 As shown, it also includes a limit frame 28, which is a Z-shaped structure. The limit frame 28 partially extends into the support beam 24, and the limit frame 28 fits the U-shaped cavity of the support beam 24 to form a limit fixation of the panel 12 to prevent the panel 12 from rotating too much. The limit frame 28 is connected and fixed to the support beam 24, and the limit frame 28 and the support beam 24 can be bolted, welded, or fixed in other ways.
[0074] Specifically, the main body 11 can be made of stainless steel, and the limit frame 28, support beam 24, support cover 25, and fixed bracket 23 are all made of stainless steel, and the surface is sprayed with metal anti-scratch paint to improve the overall strength and aesthetics.
[0075] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.
Claims
1. A writing board that can be manually raised and lowered and reset, characterized in that: include: Ontology(11); A panel (12), wherein the panel (12) is rotatably connected to the body (11); A lifting component (13), one end of the lifting component (13) is connected to the panel (12), and the other end of the lifting component (13) is rotatably connected to the body (11), and the lifting component (13) is provided with a plurality of gear slots (14), a gear pin (15) and a limiting structure, and the gear pin (15) slides on the gear slot (14); An energy storage component (16), one end of the energy storage component (16) is connected to the body (11), and the other end of the energy storage component (16) is connected to the panel (12); When the shift pin (15) moves to a preset threshold value and the external force applied to the panel (12) is cancelled, the shift pin (15) cooperates with the limit structure, and the energy storage component (16) drives the lifting component (13) to return to the initial position.
2. The manually liftable and self-resetting writing board according to claim 1, characterized in that: The limiting structure comprises a limiting member (17), the limiting member (17) being provided with a limiting groove (171), and the limiting groove (171) being located on the movement track of the shift pin (15).
3. The manually liftable and self-resetting writing board according to claim 2, characterized in that: The lifting assembly (13) comprises a lifting rod (18) and a lifting sleeve (19); the lifting sleeve (19) is provided with a cavity (191); the lifting rod (18) extends to the cavity (191) and moves relative to the lifting sleeve (19); the shift pin (15) cooperates with the lifting rod (18); the limiting member (17) is accommodated in the cavity (191); the limiting member (17) is located on the movement trajectory of the lifting rod (18); and the shift slot (14) is provided on the lifting sleeve (19).
4. The manually liftable and self-resetting writing board according to claim 3, characterized in that: The lifting assembly (13) further comprises a linkage member (20), wherein the linkage member (20) is connected to the shift pin (15), and the linkage member (20) cooperates with the lifting rod (18) in linkage.
5. The manually liftable and self-resetting writing board according to claim 4, characterized in that: The lifting rod (18) is provided with a fixed cavity (181), the linkage member (20) is accommodated in the fixed cavity (181) and the linkage member (20) is movably arranged relative to the fixed cavity (181), and the linkage member (20) and the limiting member (17) are arranged in parallel.
6. The manually liftable and self-resetting writing board according to claim 5, characterized in that: The lifting assembly (13) further comprises a first elastic member (21), the fixed cavity (181) is provided with a groove (182), one end of the linkage member (20) is provided with a hook portion (201) matched with the groove (182), one end of the first elastic member (21) is against the fixed cavity (181), the other end of the first elastic member (21) is against the linkage member (20), and the first elastic member (21) is located between the gear pin (15) and the hook portion (201).
7. The manually liftable and self-resetting writing board according to claim 3, characterized in that: The lifting sleeve (19) is provided with a gear cavity (192), the gear slot (14) is arranged in the gear cavity (192), the gear cavity (192) further comprises a first extension portion (1921), a second extension portion (1922) and a vertical portion (1923), the two ends of the vertical portion (1923) are respectively connected with the first extension portion (1921) and the second extension portion (1922), the side surface of the vertical portion (1923) is connected with the gear slot (14), and the gear pin (15) slides in the gear cavity (192).
8. The manually liftable and self-resetting writing board according to claim 3, characterized in that: The lifting rod (18) is provided with a driving part (184), and the limiting member (17) is located on the movement track of the driving part (184).
9. The manually liftable and self-resetting writing board according to claim 1, characterized in that: The connection point between the panel (12) and the body (11) is a first connection point (221), the connection point between the lifting component (13) and the body (11) is a second connection point (222), the connection point between the lifting component (13) and the panel (12) is a third connection point (223), and imaginary connecting lines of the first connection point (221), the second connection point (222), and the third connection point (223) form an acute triangle.
10. The manually liftable and self-resetting writing board according to claim 1, characterized in that: The energy storage component (16) includes at least one tension spring (161); or the energy storage component (16) includes a gas spring.