An automatic opening and closing flip cover device

Abstract

An automatic opening and closing flip device, comprising a base, an opening and closing part, a guide column, a movable arm, a first guide rail, a support, a second guide rail; the base reciprocates along a preset path; the opening and closing part comprises a cover plate and a supporting plate; the supporting plate is above the base and is rotatably connected to the base through a turnover shaft; the cover plate is supported on the supporting plate and is turned over with the supporting plate; the guide column is vertically arranged in the cover plate; the support moves along the second guide rail with the base; the second guide rail comprises an upwardly inclined rising section; when the support moves forward along the rising section, it is upwardly lifted and acts on the lower surface of the cover plate, driving the cover plate to translate upwardly along the guide column from a closed position to a preparatory position; one end of the movable arm is fixedly connected to the turnover shaft, and the other end moves along the first guide rail with the base; the first guide rail comprises an upwardly inclined lifting section. The scheme can realize a multi-segment stroke composite flip action and automatic opening and closing.

Description

Technical Field

[0001] This utility model relates to the field of flip cover technology, and in particular to an automatic opening and closing flip cover device. Background Technology

[0002] In daily life and industrial production, flip-top devices with lids are widely used. These devices typically require frequent opening and closing of the lid. To improve efficiency and simplify operation, many devices adopt automatic opening and closing designs.

[0003] Common automatic opening and closing designs, such as those using a combination of sensors and electric drive mechanisms, work by having the sensor detect when the cover needs to be opened or closed, and then using the control system to drive a motor or electromagnet to open or close the cover. However, this design results in higher equipment costs and system complexity.

[0004] To reduce costs and system complexity, some designs abandon electrical components and adopt purely mechanical structures to achieve automatic opening and closing of the cover plate. For example, Chinese utility model patent CN219191002U discloses an automatic mold opening and closing device. Its principle is to move the mold back and forth, so that the extension rod moves along the arc track, thereby driving the top mold (i.e., the cover plate) fixedly connected to the extension rod to open or close, thus realizing automatic opening and closing action.

[0005] In some applications, the simple flip-open / close action described above is insufficient. For example, in keyboard key testing, to detect structural defects, a pin is inserted vertically into the key's internal space through a hole on the back of the keyboard substrate, pressing against the keycap's edges. Vertical pressure is applied to the pin's upper surface to obtain mechanical data. After testing, the cover holding the pin is lifted to remove it from the keyboard for the next test. During this process, as the cover is raised or closed, the pin must remain vertically aligned with the back hole of the keyboard substrate to avoid collisions and interference. However, with a simple flip-open / close action, the pin moves with the cover, resulting in continuous angular changes in the vertical direction, making it difficult to maintain a vertical position. This can lead to collisions and interference with the keyboard as the pin enters and exits, affecting test results or even damaging equipment and products.

[0006] Therefore, in the actual testing process described above, the cover plate containing the ejector pins needs to achieve a compound flipping action with two strokes when opening and closing. When the cover plate is opened, it first moves vertically upward to ensure that all ejector pins leave the keyboard before flipping the cover open, making it convenient to replace the next keyboard to be tested. When the cover plate is closed, it first flips the cover closed, and before all ejector pins touch the keyboard, it moves vertically downward to achieve the closing position.

[0007] How to achieve automatic opening and closing of the above-mentioned composite flip-cover action through mechanical structure design is the problem that this solution aims to study and solve. Utility Model Content

[0008] The purpose of this utility model is to provide an automatic opening and closing flip cover device that can realize a multi-stage composite flip cover action and achieve automatic opening and closing.

[0009] The technical solution adopted in this utility model is: An automatic opening and closing flip-top device includes a base, an opening and closing section, a guide post, a movable arm, a first guide rail, a bracket, and a second guide rail. The base is configured to reciprocate along a preset path in both forward and reverse directions. The opening and closing section includes a cover plate and a support plate. The support plate is located above the base and is rotatably connected to the base via a flipping shaft. The cover plate rests on the support plate and flips with the support plate. The guide post passes vertically through the cover plate. The bracket moves along the second guide rail with the base. The second guide rail includes an upwardly inclined rising section. When the bracket moves forward along the rising section, it lifts upward and acts on the lower surface of the cover plate, driving the cover plate to move upward along the guide post from a closed position to a preparatory position. When the bracket moves in the reverse direction along the rising section, the cover plate moves downward along the guide post to the closed position. One end of the movable arm is fixedly connected to the flipping shaft, and the other end moves along the first guide rail with the base. The first guide rail includes an upwardly inclined lifting section.

[0010] In a further technical solution, the base's movement path is sequentially defined with a first position, a second position, a third position, and a fourth position in the positive direction; when the base is in the first position, the support is located at the starting point of the second guide rail's rising section; when the base is in the second position, the support is located at the end point of the rising section; when the base is in the third position, the movable arm is located at the starting point of the first guide rail's lifting section; and when the base is in the fourth position, the movable arm is located at the end point of the lifting section.

[0011] In a further technical solution, the guide post is provided on the opening and closing part and movably passes through the tray and the cover plate; the two ends of the guide post are provided with limiting stops to prevent the tray and the cover plate from detaching from the guide post.

[0012] In a further technical solution, a compression spring is provided between the tray and the adjacent limiting stop.

[0013] In a further technical solution, the lower end of the guide post is fixed on the base, and the upper end corresponds to the preparatory position, so that the cover plate is just detached from the guide post in the preparatory position.

[0014] In a further technical solution, at least three guide posts are provided in the same direction, and each guide post is distributed along the outer periphery of the cover plate.

[0015] In a further technical solution, two movable arms are provided, which are respectively connected to the two ends of the flipping shaft; the first guide rail and the movable arm are matched one-to-one.

[0016] In a further technical solution, two brackets are provided, which are respectively embedded on the left and right sides of the base so as to move with the base in the direction of movement of the base; the second guide rail is matched with the bracket in a one-to-one correspondence.

[0017] In a further technical solution, the second guide rail includes a parallel segment extending parallel to the moving direction of the base.

[0018] In a further technical solution, the second guide rail includes a downwardly inclined descending section; the ascending section, the parallel section, and the descending section are arranged sequentially in the positive direction.

[0019] The beneficial effects of this utility model are as follows: This flip-top device adopts a motion coupling structure design, which couples the composite flip-top action of the cover plate with multiple strokes of translation and flipping through the support and movable arm to the movement state of the base. When the base moves, it drives the two components to drive the cover plate to perform translation and flipping actions respectively, thereby forming a composite flip-top action. Then, by operating the reciprocating movement of the base, the automatic opening and closing of the composite flip-top action is realized. This flip-cover device achieves automatic opening and closing of the composite flip-cover action through a purely mechanical design, avoiding the involvement of electrical components and corresponding control modules, and has the advantages of low cost and low system complexity. In summary, this flip-top device simplifies the complex flip-top action of the cover plate into a simple movement of the base along a preset path by combining spatial architecture and timing control. It reconstructs the functional logic of existing flip-top devices and provides a highly reliable and low-cost solution for flip-top devices that need to achieve multi-segment complex flip-top actions. Attached Figure Description

[0020] Appendix Figure 1 This is a schematic diagram of an embodiment of the present solution; Appendix Figure 2 This is a schematic diagram of the configuration on a straight track in an embodiment of this solution; Appendix Figure 3 This is a side view of the solution in its closed state according to an embodiment of the present invention; Appendix Figure 4 This provides a side view of the action process in this embodiment of the solution; Appendix Figure 5 This is a side view of the solution in its open state in this embodiment. Appendix Figure 6 This is a schematic diagram of the movable arm and support plate in this embodiment of the solution; Appendix Figure 7This is a schematic diagram of the structure of the guide post connection in this embodiment of the solution; Appendix Figure 8 This is a schematic diagram of the support frame before it is lifted in this embodiment of the solution; Appendix Figure 9 This is a schematic diagram of the support frame after it has been raised in this embodiment of the solution; Appendix Figure 10 This is a schematic diagram of the bracket in this embodiment of the solution; Appendix Figure 11 This is a schematic diagram of the second guide rail in this embodiment.

[0021] In the above attached diagrams: 1. Base; 2. Opening / closing part; 21. Cover plate; 22. Support plate; 23. Guide column; 231. Limiting stop; 232. Compression spring; 24. Tilting shaft; 25. Rotating shaft fixing seat; 3. Movable arm; 4. First guide rail; 5. Bracket; 51. Acting end; 52. Displacement end; 6. Second guide rail; 61. Ascending section; 62. Parallel section; 63. Descending section; 7. Linear track. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments: The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the embodiments of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.

[0023] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.

[0024] The terms "first," "second," etc., used in this article do not specifically refer to order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0025] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.

[0026] The terms “front,” “back,” “up,” “down,” “left,” and “right” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not used to limit the scope of protection of this case or the specific direction in actual implementation.

[0027] like Figures 1 to 11 The embodiment shown provides an automatic opening and closing flip cover device, including a base 1, an opening and closing part 2, a guide post 23, a movable arm 3, a first guide rail 4, a bracket 5, and a second guide rail 6.

[0028] The base 1 is used to place the keyboard to be tested and is configured to move back and forth along a preset path in the forward and reverse directions; the opening and closing part 2 includes a cover plate 21 and a support plate 22; the support plate 22 is located above the base 1 and is rotatably connected to the base 1 through a flipping shaft 24; the cover plate 21 is supported on the support plate 22 and flips with the support plate 22; the guide post 23 passes through the cover plate 21 vertically.

[0029] The bracket 5 moves along the second guide rail 6 driven by the base 1. The second guide rail 6 includes an upwardly inclined rising section 61. When the bracket 5 moves forward along the rising section 61, it lifts upward and acts on the lower surface of the cover plate 21, driving the cover plate 21 to move upward along the guide post 23 from a closed position to a preparatory position. When the bracket 5 moves in the opposite direction along the rising section 61, the cover plate 21 moves downward along the guide post 23 to the closed position. This realizes the translational movement of the cover plate 21.

[0030] One end of the movable arm 3 is fixedly connected to the flipping shaft 24, and the other end moves along the first guide rail 4 driven by the base 1. The first guide rail 4 includes an upwardly inclined lifting section. When the movable arm 3 moves forward along the lifting section, the other end is gradually raised, causing the movable arm 3 to drive the flipping shaft 24 and the support plate 22, thereby driving the cover plate 21 to rotate and open from the preparatory position to an open position. When the movable arm 3 moves in the opposite direction along the lifting section, the other end gradually lowers, eventually driving the cover plate 21 to rotate from the open position to the preparatory position. This realizes the flipping action of the cover plate 21.

[0031] Among them, such as Figure 2 As shown, the base 1 is mounted on a straight track 7 on a horizontal platform, and moves back and forth in the forward and reverse directions on the straight track 7.

[0032] It is worth mentioning that in this embodiment, by using a straight track 7, the preset path for the base 1 to move is a horizontal straight line, which can make the base 1 move smoothly and facilitate the application of external force to the base 1 to make it move back and forth in the forward and reverse directions. However, in other embodiments, other types of paths such as curved paths and sloping paths can be used according to actual needs without affecting the technical effect. The power source for the base 1 to move on the preset path can be human power or other external forces, or it can be driven by its own internal power mechanism.

[0033] In this design, the cover plate 21 can both translate along the guide post 23 under the action of external force and rotate around the rotating axis 24 under the drive of the support plate 22, thus having two degrees of freedom: rotation and translation, which constitutes the structural basis for performing compound rotation actions.

[0034] Regarding the guide post 23, the following structure is specifically selected in this embodiment: (e.g.) Figure 7As shown, the guide post 23 is disposed on the opening / closing part 2 and movably passes through the tray 22 and the cover plate 21; the two ends of the guide post 23 are provided with limiting stops 231 to prevent the tray 22 and the cover plate 21 from detaching from the guide post 23. In this structure, the guide post 23 is part of the opening / closing part 2, always remaining inserted through the tray 22 and the cover plate 21, providing the cover plate 21 with translational freedom, and flipping together with the opening / closing part 2; when the cover plate 21 flips with the tray 22, it will not slide down under gravity due to the limiting effect of the guide post 23, and remains relatively fixed with the tray 22.

[0035] In this embodiment, as Figure 7 As shown, a compression spring 232 is provided between the tray 22 and the adjacent limiting stop 231. Thus, the expansion force of the compression spring 232 on the tray 22 and the adjacent limiting stop 231 can force the cover plate 21 to press against the tray 22 without external force. When the cover plate 21 moves upward under the action of external force, the cover plate 21 disengages from the contact with the tray 22, and the compression spring 232 is further compressed. When the external force is removed, the force of the compression spring 232 causes the cover plate 21 to return to the state of contact with the tray 22.

[0036] It is worth mentioning that in this embodiment, the translation direction of the cover plate 21 is vertical. Therefore, the cover plate 21 can be reset to the state of contact with the support plate 22 under the action of gravity. Thus, the compression spring 232 is not necessary. However, the compression spring 232 still has the beneficial effect of strengthening the reset effect and improving the stability of system operation in this embodiment. Considering other conceivable implementations, the translation direction may not be vertical. It may be tilted, horizontal, or other situations where the reset effect cannot be achieved entirely by gravity. In some cases, gravity may even have a counteracting effect. In such cases, the reset effect must be achieved by the compression spring 232 or other similar pressing mechanism.

[0037] In this embodiment, four sets of guide posts 23 are provided, which pass through the support plate 22 and the opening and closing assembly in the same direction. Each guide post 23 is distributed along the outer periphery of the cover plate 21. Thus, by designing multiple sets of guide posts 23, the stability of the relative translation between the cover plate 21 and the support plate 22 can be guaranteed, and the shaking during translation can be reduced or even avoided.

[0038] Among them, such as Figure 6 As shown, the support plate 22 is arranged in a U-shape below the cover plate 21, and four sets of guide posts 23 are respectively arranged at the four ends of the support plate 22 so that each guide post 23 is evenly distributed on the outer periphery of the cover plate 21. The U-shape of the support plate 22 can ensure the support effect of the cover plate 21 while minimizing the contact surface with the cover plate 21, so that the cover plate 21 has more exposed lower surface to achieve its function.

[0039] Regarding the fixed connection method between the pallet 22 and the movable arm 3, the following structure is adopted in this embodiment: the flipping shaft 24 passes through a rotating shaft fixing seat 25 and is fixedly connected to the rotating shaft fixing seat 25, for example, by welding, screws, or snap-fit ​​connection; the rotating shaft fixing seat 25 has a support surface corresponding to the lower surface of the middle section of the pallet 22, and the two are fixedly connected by fixing screws, thereby constituting a fixed connection between the pallet 22 and the movable arm 3. There are various ways to fix the two structural components, and in actual implementation, it is not limited to the method described above.

[0040] Among them, such as Figure 6 As shown, one end of the movable arm 3 is fixedly connected to the flip shaft 243 to transmit the rotational motion of the movable arm 3 to the flip shaft 24 for synchronous rotation; the fixed connection method can be welding or screw connection through the shaft body, which will not be described in detail in this embodiment.

[0041] The flipping shaft 24 is horizontally positioned at one end of the base 1, and its axis is orthogonal to the extension direction of the linear track 7. The orientation of the flipping shaft 24 facilitates its cooperation with the movable arm 3 and the first guide rail 4 to perform the flipping action.

[0042] It is worth mentioning that the "up" in the description of the upward tilting extension of the lifting segment refers to the directional description relative to the direction of movement of the base 1, and does not only refer to the direction away from the horizontal plane. In this embodiment, the base 1 moves horizontally, so the upward tilting extension of the lifting segment is manifested as tilting and extending in a direction away from the horizontal plane. However, considering other conceivable implementations, the base 1 may move along a non-horizontal trajectory such as tilting downward, and the upward tilting extension of the lifting segment may be manifested accordingly as extending parallel to the horizontal plane or in a direction close to the horizontal plane.

[0043] In this embodiment, the movable end of the movable arm 3 is provided with a roller, which can reduce resistance and facilitate movement.

[0044] In this embodiment, two movable arms 3 are provided, respectively connected to both ends of the flipping shaft 24; the first guide rail 4 and the movable arms 3 are matched one-to-one. This improves the rotational stability of the device.

[0045] In this embodiment, as Figures 8 to 10 As shown, there are two brackets 5, which are respectively embedded on the left and right sides of the base 1, so as to move with the base 1 in the direction of movement of the base 1; the second guide rail 6 is matched with the bracket 5 in a one-to-one correspondence. Thus, the bracket 5 is constrained in the direction of movement of the base 1, so that the bracket 5 can move synchronously with the base 1 in this direction of movement; the bracket 5 is not restricted by the base 1 in the direction of translational movement.

[0046] The bracket 5 includes an upper working end 51 and a lower displacement end 52; the working end 51 is disposed on the lower surface of the cover plate 21; the displacement end 52 is moved on the second guide rail 6.

[0047] Under this structural design, the base 1 drives the bracket 5 to move back and forth on the second guide rail 6, so that the bracket 5 can move up and down under the constraint of the second guide rail 6. When moving up, the action end 51 contacts and pushes the cover plate 21 to move upward. When moving down, the cover plate 21 moves downward together with the action end 51 under the action of gravity to reset, thus realizing the translation operation.

[0048] Each bracket 5 is located below the cover plate 21, and each has two working ends 51, forming a total of four working ends 51. The four working ends 51 are not on the same straight line, thus forming a planar support for the cover plate 21 and enhancing the stability of the support.

[0049] It is worth mentioning that the position of each actuating end 51 is determined by the shape of the supported position of the cover plate 21, and does not necessarily need to be on the same plane, as long as it can be ensured that it can synchronously contact and support the cover plate 21; in addition, in this embodiment, the actuating end 51 drives the cover plate 21 by contact, and in other embodiments, a transmission connection driving method can also be used.

[0050] Each support 5 has two downward-facing displacement ends 52, forming a total of four displacement ends 52. Each displacement end 52 is equipped with a corresponding second guide rail 6, resulting in four second guide rails 6. The displacement ends 52 and second guide rails 6 are staggered sequentially along the left-right direction of the base 1. When the base 1 moves the support 5, each displacement end 52 simultaneously contacts the second guide rail 6. Each second guide rail 6 has the same shape to constrain the displacement ends 52 to form the same trajectory, thereby ensuring that the support 5 achieves overall vertical translation under the action of the second guide rails 6. Therefore, by setting multiple displacement ends 52 and corresponding second guide rails 6, the stability of the translation can be ensured.

[0051] It is worth mentioning that in this embodiment, the translational movement direction of the bracket 5 and the cover plate 21 is vertical. However, the translational movement direction is not limited to the vertical direction by adjusting the orientation of components such as the second guide rail 6, the bracket 5, the cover plate 21, and the guide column 23.

[0052] In this embodiment, as Figure 11 As shown, the second guide rail 6, along the positive direction of movement of the base 1, comprises: The ascending segment 61 is configured to extend upwards at an sloping angle. Parallel segment 62 is configured to move parallel to the direction of movement of base 1; The descending segment 63 is configured to extend downwards at an angle.

[0053] This satisfies the coordination requirements of the compound flip action; the design of the parallel section 62 ensures that the bracket 5 does not move up and down when passing through the parallel section 62, which facilitates stable coordination with the flip action; the design of the descending section 63 ensures that the bracket 5 moves downward and resets at the end of the forward stroke. At this time, the cover plate 21 is still in the open state under the restriction of the first guide rail 4. Thus, by resetting the bracket 5 from the upward protruding state, it is convenient to use the base 1 when the cover plate 21 is open, such as operating and taking out the keyboard to be tested.

[0054] It is worth mentioning that the "up" and "down" in the description of the second guide rail 6 tilting upward and downward in the text refer to the translation direction of the cover plate 21, and do not refer to the vertical direction alone.

[0055] In this embodiment, rollers are provided on the displacement end 52 of the bracket 5 to reduce resistance and facilitate movement.

[0056] In this embodiment, the base 1 has four positions defined sequentially along its moving path in the positive direction: a first position, a second position, a third position, and a fourth position. When the base 1 is in the first position, the support 5 is located at the starting point of the rising section 61 of the second guide rail 6. When the base 1 is in the second position, the support 5 is located at the ending point of the rising section 61. When the base 1 is in the third position, the movable arm 3 is located at the starting point of the lifting section of the first guide rail 4. When the base 1 is in the fourth position, the movable arm 3 is located at the ending point of the lifting section.

[0057] Therefore, the timing of the translational and flipping actions of the cover plate 21 can be controlled in this device, so that when the cover plate 21 is opened, it first moves upward and then flips to open; when it is closed, it first flips to close and then moves downward to reset, so as to meet the usage requirements of the test keyboard. However, embodiments for other functions are not limited to this timing and can be adjusted as needed.

[0058] This embodiment has the following specific working process performed in a specific timing sequence: In the initial state, the cover plate 21 is in the closed position, and the base 1 is located at the first end of the linear guide rail; When the base 1 moves forward, the displacement end 52 of the bracket 5 first passes through the rising section 61 of the second guide rail 6. During this process, the bracket 5 moves upward and its working end 51 gradually contacts and supports the cover plate 21, causing the cover plate 21 to move upward along the guide column 23, leaving the closed position and moving away from the base 1 to the preparatory position. The base 1 continues to move forward, causing the displacement end 52 to pass through the parallel section 62 of the second guide rail 6. During this process, the bracket 5 and the cover plate 21 do not perform translational movement. Meanwhile, during the process of the displacement end 52 passing through the parallel section 62, the movable end of the movable arm 3 passes through the lifting section of the first guide rail 4, and the movable end rises, causing the movable arm 3 to rotate. This rotation is transmitted through the movable arm 3, the flipping shaft 24, the support plate 22, and the cover plate 21, and finally drives the cover plate 21 to flip to the open position. The displacement end 52 moves forward with the base 1, passes through the parallel section 62 of the second guide rail 6 and then the descending section 63. During this process, the bracket 5 moves downward to reset, while the cover plate 21 remains open under the restriction of the first guide rail 4. Finally, base 1 reaches the second end of the linear guide, which is the end of the forward movement; When the base 1 moves in the reverse direction, it first drives the displacement end 52 of the bracket 5 to move in the reverse direction through the descending section 63 of the second guide rail 6. That is, the bracket 5 is actually moving upward until the displacement end 52 reaches the parallel section 62. This causes the action end 51 of the bracket 5 to reach the height of the preparatory position of the cover plate 21, ready to receive the cover plate 21 that will arrive later. The base 1 continues to move in the opposite direction, causing the movable end of the movable arm 3 to pass through the lifting section of the first guide rail 4 in the opposite direction, so that the cover plate 21 is driven to perform a closing flipping action until the ready position, and is supported by the bracket 5. Next, the displacement end 52 moves in the opposite direction along the rising section 61 of the second guide rail 6 with the base 1, that is, the bracket 5 is essentially moving downward to reset. During this process, the cover plate 21 moves downward with the bracket 5 until it is reset to the closed position. Finally, base 1 returns to the second end of the linear guide rail, allowing for the next round of automatic opening and closing reciprocating movement.

[0059] It is worth mentioning that, in actual implementation, in addition to the flipping and translating actions, the cover plate 21 may also add other actions at the beginning, end or middle of the action during the opening and closing actions. The corresponding implementation methods should all be included within the protection scope of this patent.

[0060] In addition to the structure of this embodiment, the guide post 23 can also adopt another structure: the lower end of the guide post 23 is fixed on the base 1, and the upper end corresponds to the preparatory position, so that the cover plate 21 is just detached from the guide post 23 in the preparatory position. Its operating logic is that the cover plate 21 first moves upward along the guide post 23 from the closed position under the action of the bracket 5 until it is detached from the guide post 23 in the preparatory position. After detaching from the guide post 23, the cover plate 21 is no longer restricted by the guide post 23 and can be flipped to the open position with the support plate 22, and vice versa. It should be noted that when the cover plate 21 flips with the support plate 22 under this design, in order to prevent the cover plate 21 from slipping, a limiting structure needs to be added between the support plate 22 and the cover plate 21; this design can also achieve the purpose of the solution.

[0061] This flip-top device adopts a motion coupling structure design, which makes the cover plate 21 have a compound flip-top action with multiple strokes of translation and flipping. The base 1 is coupled to the moving state of the support 5 and the movable arm 3. When the base 1 moves, it drives the two components to drive the cover plate 21 to perform translation and flipping actions respectively, thereby forming a compound flip-top action. Then, the automatic opening and closing of the compound flip-top action is realized by operating the reciprocating movement of the base 1. This flip-cover device achieves automatic opening and closing of the composite flip-cover action through a purely mechanical design, avoiding the involvement of electrical components and corresponding control modules, and has the advantages of low cost and low system complexity. In summary, this flip-top device simplifies the complex flip-top action of the cover plate 21 into a simple movement of the base 1 along a preset path through the combination of spatial architecture and timing control. It reconstructs the functional logic of existing flip-top devices and provides a highly reliable and low-cost solution for flip-top devices that need to achieve multi-segment complex flip-top actions.

[0062] This embodiment can be used in the field of keyboard key detection, wherein the base 1 serves as a carrier for loading the keyboard to be tested, and the cover plate 21 is loaded with pins for inserting into the inside of the keyboard to be tested; this patent is not actually limited to solving problems in the field of keyboard detection, but can be applied to any field that requires the automatic opening and closing of a compound flip-cover action.

[0063] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An automatic opening and closing flip cover device, characterized in that: Includes base (1), opening and closing part (2), guide column (23), movable arm (3), first guide rail (4), bracket (5), second guide rail (6); The base (1) is configured to move back and forth along a preset path in both the forward and reverse directions; The opening and closing part (2) includes a cover plate (21) and a support plate (22); the support plate (22) is located above the base (1) and is rotatably connected to the base (1) through a flipping shaft (24); the cover plate (21) is supported on the support plate (22) and flips with the support plate (22); The guide post (23) passes through the cover plate (21) from top to bottom; The bracket (5) moves along the second guide rail (6) driven by the base (1); the second guide rail (6) includes an upwardly inclined rising section (61). When the bracket (5) moves forward along the rising section (61), it lifts upward and acts on the lower surface of the cover plate (21), driving the cover plate (21) to move upward along the guide post (23) from a closed position to a preparatory position; when the bracket (5) moves in the opposite direction along the rising section (61), the cover plate (21) moves downward along the guide post (23) to the closed position. One end of the movable arm (3) is fixedly connected to the flipping shaft (24), and the other end moves along the first guide rail (4) driven by the base (1); the first guide rail (4) includes an upwardly inclined lifting section.

2. The automatic opening and closing flip cover device according to claim 1, characterized in that: Along the moving path of the base (1), there are first position, second position, third position and fourth position defined in sequence in the positive direction; When the base (1) is in the first position, the bracket (5) is located at the starting point of the rising section (61) of the second guide rail (6); When the base (1) is in the second position, the support (5) is located at the end of the rising section (61); When the base (1) is in the third position, the movable arm (3) is located at the starting point of the lifting section of the first guide rail (4); When the base (1) is in the fourth position, the movable arm (3) is at the end of the lifting section.

3. The automatic opening and closing flip cover device according to claim 1, characterized in that: The guide post (23) is provided on the opening and closing part (2) and movably passes through the tray (22) and the cover plate (21); the two ends of the guide post (23) are provided with limiting stops (231) to restrict the tray (22) and the cover plate (21) from disengaging from the guide post (23).

4. The automatic opening and closing flip cover device according to claim 3, characterized in that: A compression spring (232) is provided between the pallet (22) and the adjacent limiting stop (231).

5. The automatic opening and closing flip cover device according to claim 1, characterized in that: The lower end of the guide post (23) is fixed on the base (1), and the upper end corresponds to the preparatory position, so that the cover plate (21) is just detached from the guide post (23) in the preparatory position.

6. An automatic opening and closing flip cover device according to claim 3 or 5, characterized in that: The guide post (23) has at least three in the same direction, and each guide post (23) is distributed along the outer periphery of the cover plate (21).

7. The automatic opening and closing flip cover device according to claim 1, characterized in that: Two movable arms (3) are provided, which are respectively connected to the two ends of the flipping shaft (24); the first guide rail (4) and the movable arm (3) are matched one by one.

8. The automatic opening and closing flip cover device according to claim 1, characterized in that: Two brackets (5) are provided, which are respectively embedded on the left and right sides of the base (1) so as to move with the base (1) in the direction of movement of the base (1); the second guide rail (6) is matched with the bracket (5) one by one.

9. An automatic opening and closing flip cover device according to claim 1 or 8, characterized in that: The second guide rail (6) includes a parallel segment (62) extending parallel to the moving direction of the base (1).

10. The automatic opening and closing flip cover device according to claim 9, characterized in that: The second guide rail (6) includes a downwardly inclined descending section (63); the ascending section (61), the parallel section (62) and the descending section (63) are arranged sequentially in the positive direction.

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