A circuit board protection device

Abstract

The utility model provides a kind of circuit board protection device, protection device and circuit board are applied in the shell with the placement cavity being opened, and the protection device includes: position detector, position detector is located in the placement cavity, for detecting whether the component and device that the maximum height of protruding from circuit board surface on circuit board reaches preset safety distance;Adjusting assembly, adjusting assembly is located in the placement cavity, adjusting assembly includes the placement plate for bearing circuit board and the adjusting piece connected with placement plate, adjusting piece is used to drive placement plate to move;Driving motor, driving motor is located on the shell, driving motor is electrically connected with position detector, and the output shaft of driving motor and adjusting piece are drivingly connected. Reach preset safety distance by position detector sensing the component and device that the maximum height of protruding from circuit board surface, linkage driving motor controls the movement of placement plate, adjusts circuit board to ideal hover height, so that the component and device that the maximum height of protruding from circuit board surface can be suspended and avoid in the inner wall of placement cavity.

Description

Technical Field

[0001] This utility model relates to the field of circuit board protection technology, and in particular to a circuit board protection device. Background Technology

[0002] With the continuous enrichment of electronic product functions and the gradual increase in integration, circuit boards, as the core carrier of electronic devices, play a crucial role in product design and manufacturing. Double-sided circuit boards, in particular, with their ability to perform double-sided wiring and component soldering, enable higher-density circuit layouts within limited space and are widely used in consumer electronics, industrial automation, mechanical engineering, and other fields. As product miniaturization intensifies, the safety and protection requirements for circuit boards during production, transportation, storage, and use are also increasing. How to provide reliable and adaptable protection for double-sided circuit boards has become an urgent problem to be solved in the industry.

[0003] Currently, common circuit board protection measures in the industry mainly consist of simple storage boxes, protective shells, or cushioning pads. These typically involve filling the inside of the box with flexible materials such as foam, sponge, or cushioning pads to reduce external impact and secure the circuit board. These solutions are simple in structure and inexpensive to manufacture, and to some extent, can meet the transportation and storage needs of standard-sized, single-sided component boards. However, for circuit boards, flexible materials cannot precisely conform to the actual thickness of the board and the component layout, resulting in limited protective effectiveness.

[0004] With the widespread use of double-sided circuit boards, the shortcomings of the aforementioned traditional protection methods have become increasingly apparent. Due to significant differences in the size and shape of components on both sides of the circuit board, and the asymmetrical distribution of overall thickness, the use of foam or sponge filling methods inevitably leads to contact with the component surfaces. If squeezed during transportation or stacking, this can easily cause solder joints to loosen or components to be damaged. Existing devices generally lack the ability to adapt to the thickness differences and diverse layouts of double-sided circuit boards, making it difficult to provide targeted safety protection. Utility Model Content

[0005] This utility model provides a circuit board protection device to solve the problem of insufficient adaptability of existing circuit board protection devices to the layout of circuit board components.

[0006] To solve the above-mentioned technical problems, this utility model provides a circuit board protection device, wherein the protection device and the circuit board are applied inside a housing with a placement cavity, and the protection device includes:

[0007] A position detector, located inside the placement cavity, is used to detect whether the component protruding the largest height from the surface of the circuit board has reached a preset safe distance.

[0008] An adjustment assembly is disposed within the placement cavity. The adjustment assembly includes a placement plate for supporting the circuit board and an adjustment member connected to the placement plate. The adjustment member is used to move the placement plate.

[0009] A drive motor is mounted on the housing and electrically connected to the position detector. The output shaft of the drive motor is drivenly connected to the adjusting component.

[0010] Furthermore, the protective device includes two adjustment components, each of which includes a partition plate with a guide hole and an adjustment rod passing through the guide hole. One end of the adjustment rod is connected to the adjustment member, and the other end passes through the guide hole and is connected to the placement plate.

[0011] Furthermore, the adjusting linkage includes a first adjusting tube connected to the adjusting member, a first elastic member disposed at the end of the first adjusting tube away from the adjusting member, and an adjusting rod. One end of the adjusting rod is slidably disposed on the first adjusting tube, and the other end passes through the guide hole and is connected to the placement plate. The first elastic member is used to drive the adjusting rod to slide and reset along a first direction, and the first direction is perpendicular to the moving direction of the adjusting member.

[0012] Furthermore, each of the adjustment components includes two placement plates and adjustment rods respectively connected to the two placement plates. The adjustment rods also include a second adjustment tube and a second elastic member disposed at the end of the adjustment rod away from the first adjustment tube. The first adjustment tube and the adjustment rod are both L-shaped. One end of the second adjustment tube is slidably connected to the adjustment rod, and the other end is connected to the placement plate. The second elastic member is used to drive the second adjustment tube to slide and reset along the second direction. The first direction, the second direction, and the movement direction of the adjustment member are all perpendicular to each other.

[0013] Furthermore, the four placement plates are located on the same plane of motion, and each placement plate has an L-shaped limiting plate on its upper surface. The placement plate and the L-shaped limiting plate together form a limiting groove to restrict the movement of the circuit board.

[0014] Furthermore, it also includes a deformation pressure frame and a fixing member for fixing the deformation pressure frame to the L-shaped limiting plate. The deformation pressure frame includes four L-shaped tubes and four sliding rods. The two ends of each sliding rod are slidably connected to two adjacent L-shaped tubes, so that the deformation pressure frame forms a deformable rectangular frame structure. The L-shaped tubes have through holes, and the fixing member passes through the holes and is connected to the L-shaped limiting plate.

[0015] Furthermore, the deformation pressure frame also includes a plurality of third elastic elements, which are respectively disposed on the L-shaped folded tube and are used to drive the slide rod to reset.

[0016] Furthermore, the adjusting component includes an adjusting screw that is driven to the output shaft of the drive motor and an adjusting slider screwed onto the adjusting screw. The adjusting slider is used to move the placement plate. The partition plate is provided with a guide groove that matches the adjusting slider, and the adjusting slider extends into the guide groove.

[0017] Furthermore, each of the partition plates is provided with a fixed baffle plate, and the end of the adjusting screw away from the output shaft of the drive motor is rotatably connected to the fixed baffle plate.

[0018] Furthermore, the position detector is either a laser sensor or a capacitive sensor.

[0019] Compared with the prior art, the circuit board protection device of this utility model has the following advantages:

[0020] This invention constructs a high-precision, adaptively adjustable circuit board protection structure by setting an adjustable placement plate in the placement cavity of the housing and combining it with a position detector that can detect whether the component protruding the most from the surface of the circuit board has reached a preset safe distance. When circuit boards require transport protection, they are simply fixed to a placement plate within the placement cavity. A drive motor moves an adjusting component, which in turn moves the placement plate, causing the circuit board to move. When a position detector detects that the component protruding the most from the circuit board surface has reached a preset safety distance, the drive motor is activated to control the movement of the adjusting component, adjusting the circuit board to the ideal hovering height. This allows for precise lifting and lowering of the placement plate along the direction of the adjusting component, ensuring that the component protruding the most from the circuit board surface is suspended and avoids contact with the inner wall of the placement cavity. This method is suitable for protecting various circuit boards and components of different heights, effectively preventing the component protruding the most from being squeezed or damaged due to contact. Compared to traditional manual adjustment methods, this significantly improves adaptation efficiency and accuracy, reducing the risks of tilting, loosening, or abnormal component stress caused by human error. Furthermore, the detector and drive motor form a closed-loop control, enabling intelligent and automated operation throughout the adjustment and protection process. This reduces manual labor intensity and the probability of misoperation, enhancing the stability and safety of the circuit board during transportation and application. Meanwhile, the overall structure adopts a modular design, which facilitates quick disassembly and reuse, reduces the consumption of disposable protective materials, and lowers production and maintenance costs. It has good versatility, adaptability and promotional value, and can be widely used in electronic manufacturing, equipment maintenance and other scenarios, providing efficient and reliable technical support for circuit board protection.

[0021] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0022] The accompanying drawings are provided for a better understanding of this solution and do not constitute a limitation on this utility model. Wherein:

[0023] Figure 1 This is a schematic diagram of the circuit board protection device provided in the embodiment of the present utility model, which is disposed in the housing;

[0024] Figure 2 yes Figure 1 A partial enlarged schematic diagram of the circuit board protection device located at point A of the housing;

[0025] Figure 3 This is a cross-sectional view of the overall structure of the circuit board protection device provided in this embodiment of the utility model, which is disposed in the housing;

[0026] Figure 4 This is a partial structural schematic diagram of the adjustment component in the circuit board protection device provided in this embodiment of the utility model;

[0027] Figure 5 This is a schematic diagram of the adjusting linkage in the circuit board protection device provided in this embodiment of the utility model;

[0028] Figure 6 This is a schematic diagram of the deformation pressure frame in the circuit board protection device provided in this embodiment of the utility model.

[0029] In the diagram, 10 is the housing; 11 is the placement cavity; 20 is the position detector; 30 is the drive motor; 40 is the adjustment assembly; 41 is the placement plate; 42 is the adjustment component; 421 is the adjustment screw; 422 is the adjustment slider; 43 is the adjustment connecting rod; 431 is the first adjustment tube; 432 is the second adjustment tube; 433 is the adjustment rod; 434 is the first elastic element; 435 is the second elastic element; 44 is the partition plate; 441 is the guide hole; 442 is the guide groove; 45 is the L-shaped limiting folding plate; 46 is the limiting groove; 47 is the fixing folding plate; 50 is the deformation pressure frame; 51 is the L-shaped folding tube; 511 is the fixing hole; 52 is the slide rod; 53 is the third elastic element; 54 is the flexible handle; 60 is the circuit board; 61 is the component; 70 is the cover; 71 is the opening groove; and 80 is the fixing component. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0031] In the description of this utility model, it should be noted that the directional terms such as "middle", "upper", "lower", "inner", "outer", "vertical", "lateral", "vertical", and "horizontal" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0033] In this utility model, the terms "installation," "setting," "connection," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Indications of orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. "A plurality" means two or more, unless otherwise explicitly defined. "Several" means one or more, unless otherwise explicitly defined.

[0034] For ease of explanation later, it is first explained that during the manufacturing, transportation, and assembly of electronic devices, circuit boards 60 (PCBs) often contain various electronic components 61 of varying heights and with intricate structures. Some of these components 61 protrude significantly from the surface of the PCB 60, and their packaging is fragile with limited solder joint strength. If the PCB 60 comes into direct contact with the inner wall of the housing during handling or protection, it is highly susceptible to damage from vibration, impact, or external pressure, resulting in damage to the components 61, solder joint breakage, or even bending and deformation of the PCB 60, affecting the overall functionality and product quality. Therefore, considering the height differences and precision characteristics of the components 61 on the PCB 60, fixing the PCB 60 within a device and keeping it suspended, ensuring that the components 61 completely avoid contact with the inner wall of the housing, becomes a necessary protective measure. This suspended design avoids direct contact with tall components 61, reducing the risk of mechanical damage during transportation and assembly, improving protection, and ensuring the overall structural stability of the PCB 60 and the safety of the electronic components.

[0035] Reference Figure 1-3 As shown, this embodiment of the utility model provides a circuit board 60 protection device. The protection device and the circuit board 60 are applied inside a housing 10 with a placement cavity 11. The protection device includes:

[0036] Position detector 20 is located in placement cavity 11 and is used to detect whether the component 61 with the largest protrusion on the surface of circuit board 60 has reached a preset safe distance.

[0037] Adjustment assembly 40 is disposed in placement cavity 11. Adjustment assembly 40 includes placement plate 41 for supporting circuit board 60 and adjustment member 42 connected to placement plate 41. Adjustment member 42 is used to drive placement plate 41 to move.

[0038] The drive motor 30 is mounted on the housing 10 and is electrically connected to the position detector 20. The output shaft of the drive motor 30 is driven by the adjusting component 42.

[0039] This invention constructs a high-precision, self-adjusting protection structure for the circuit board 60 by setting an adjustable placement plate 41 within the placement cavity 11 of the housing 10, and combining it with a position detector 20 that can detect whether the component 61 protruding the most from the surface of the circuit board 60 has reached a preset safe distance. When the circuit board 60 needs to be protected during transportation, it is only necessary to fix the circuit board 60 onto the placement plate 41 in the placement cavity 11, and drive the adjustment component 42 to move, thereby causing the placement plate 41 to move the circuit board 60. When the position detector 20 detects that the component 61 protruding the most from the surface of the circuit board 60 has reached the preset safe distance, it can link the drive motor 30 to control the movement of the adjustment component 42, adjusting the circuit board 60 to the ideal suspension height, realizing the precise lifting and lowering of the placement plate 41 along the movement direction of the adjustment component 42, so that the component 61 protruding the most from the surface of the circuit board 60 can be suspended. By avoiding contact with the inner wall of the placement cavity 11, it adapts to the protection needs of various circuit boards 60 and components 61 of different heights. This effectively prevents the component 61, which protrudes the most from the surface of the circuit board 60, from being squeezed or damaged due to contact. Compared with traditional manual adjustment methods, it significantly improves the efficiency and accuracy of adaptation, reducing the risks of tilting, loosening, or abnormal stress on components 61 caused by human error. Furthermore, through a closed-loop control system formed by the detector and drive motor 30, it achieves intelligent and automated operation throughout the adjustment and protection process, reducing manual labor intensity and the probability of misoperation, and enhancing the stability and safety of the circuit board 60 during transportation and application. At the same time, the overall structure adopts a modular design, facilitating quick disassembly and reuse, reducing the consumption of disposable protective materials, and lowering production and maintenance costs. It possesses good versatility, adaptability, and promotional value, and can be widely used in electronic manufacturing, equipment maintenance, and other scenarios, providing efficient and reliable technical support for the protection of the circuit board 60.

[0040] In this embodiment of the utility model, the circuit board 60 can be fixed to the placement plate 41 in various ways to ensure stability and safety during transportation and use. For example, a screw fastening structure can be used, with multiple position holes corresponding to the mounting holes of the circuit board 60 provided on the surface of the placement plate 41, and the circuit board 60 can be reliably fixed to the placement plate 41 by screws; a snap-fit ​​limiting structure can also be used, with several snap-fit ​​components provided on the surface of the placement plate 41, and the edges of the circuit board 60 can be elastically clamped by snap-fit ​​to achieve quick assembly and disassembly; in addition, flexible pads or shock-absorbing rubber pads can be combined, and flexible materials can be provided on the contact surface between the placement plate 41 and the circuit board 60, which not only play an anti-slip role, but also buffer the impact force generated during transportation; for some circuit boards 60 that do not require screw hole installation, a magnetic fixing method can also be used, with magnetic elements provided on the placement plate 41, and the circuit board 60 can be firmly positioned by magnetic attraction. To ensure stable transportation and reliable protection of the circuit board 60, the mounting plate 41 is preferably installed on two or more sides. This ensures that the circuit board 60 is subjected to balanced forces as much as possible, preventing breakage due to single-point fixing. The various fixing methods described above can be flexibly selected or combined according to the size, weight, and structural differences of the circuit board 60, further improving the installation adaptability and protection effect of the circuit board 60. Furthermore, the above methods are only optional embodiments and do not limit the scope of protection of this utility model; specific selection or adjustment can be made according to actual needs.

[0041] In one optional embodiment of this invention, the position detector 20 can be either a laser sensor or a capacitive sensor, used to monitor the position distribution of the circuit board 60 and its components 61 within the placement cavity 11 in real time, to ensure the safe height of the circuit board 60 on the placement plate 41. To achieve high-precision height control, after the circuit board 60 is placed and fixed on the placement plate 41, the detection and adjustment actions can be initiated by a start switch, which is typically located on the side wall of the housing 10. Taking a capacitive sensor as an example, the capacitive sensor can be set at the center of the bottom of the placement cavity 11, or multiple capacitive sensors can be set at different positions at the bottom of the placement cavity 11 according to actual engineering needs. When the circuit board 60 is fixed on the placement plate 41 and the start switch is turned on, the drive motor 30 drives the adjusting screw 421 to rotate, causing the adjusting component 42 to move the placement plate 41 down along the direction of the adjusting component 42, and the circuit board 60 descends synchronously. The capacitive sensor is preset to a safe distance from the inner wall of the placement cavity 11. When a component 61 with a high protrusion on the circuit board 60 moves down to the preset safe distance range, the capacitive sensor is triggered and immediately sends a signal to the control system, causing the drive motor 30 to stop working and the adjusting component 42 to stop operating, thereby ensuring that the circuit board 60 and its component 61 remain in a safe suspended state in the placement cavity 11, avoiding the component 61 with the highest protrusion on the surface of the circuit board 60 from contacting the inner wall of the placement cavity 11 and causing squeezing or damage. The laser sensor operates on a similar principle. It measures the distance between the circuit board 60 and components 61 and the bottom of the placement cavity 11 or the sensor by emitting a beam. When a component 61 protruding from the surface of the circuit board 60 approaches a preset safety distance, the laser sensor triggers a control signal, causing the drive motor 30 to stop. Multiple laser sensors can be configured according to the actual size of the circuit board 60 and the layout of the components 61 to achieve comprehensive height monitoring and redundant protection. The number, layout, and type of position detectors 20 can be adaptively adjusted according to the size of the circuit board 60, the height differences of the components 61, and engineering requirements to obtain the best protection effect. To further improve the control accuracy of the drive motor 30's rotation, this embodiment is also equipped with a controller. The controller is electrically connected to the position detectors 20 and the drive motor 30, respectively, receives feedback signals from the detectors, and performs real-time control of the drive motor 30's operation. This enables intelligent and closed-loop operation of the entire circuit board 60 suspension protection process, thereby ensuring the stability and safety of the circuit board 60 during transportation, storage, and assembly, avoiding damage caused by components 61 contacting the inner wall of the cavity, and improving operational efficiency and protection reliability.

[0042] In this invention, the preset safety distance refers to the minimum safe distance set within the placement cavity 11, from the outer surface of the tallest component 61 on the circuit board 60 to the inner wall of the placement cavity 11. This distance serves as a trigger threshold and is detected by the position detector 20. When the actual distance between the tallest component 61 and the inner wall of the placement cavity 11 during its downward movement is less than or equal to the preset safety distance, the position detector 20 sends a trigger signal, causing the drive motor 30 to stop operating, thereby preventing the component 61, which protrudes the tallest from the surface of the circuit board 60, from contacting and colliding with the inner wall of the cavity. In other words, this safety distance is the minimum allowable gap detected in real time by the position detector 20, used to prevent the component 61 from being mechanically squeezed or damaged due to excessive position adjustment during transportation, storage, or assembly. The specific value of this distance can be set according to the structural dimensions of different circuit boards 60, the height differences of the components 61, equipment precision, and engineering safety requirements.

[0043] It should be noted that the adjusting component 42 can adopt various structural forms according to actual usage requirements to achieve precise lifting and lowering adjustment of the placement plate 41. For example, in one optional embodiment, the adjusting component 42 may include a sliding guide rail and an adjusting slider 422 that slides with the sliding guide rail. The adjusting slider 422 is driven by the drive motor 30 to move along the sliding guide rail, thereby moving the placement plate 41 and achieving smooth lifting and lowering of the circuit board 60. This has the advantages of simple structure and high guiding accuracy. In another embodiment, the adjusting component 42 may adopt a screw-nut transmission structure. The adjusting slider 422 is screwed with the screw. When the drive motor 30 drives the screw to rotate, the adjusting slider 422 moves along the screw axis, thereby driving the placement plate 41 to lift and lower precisely. This is suitable for scenarios requiring high-precision adjustment. In yet another embodiment, the adjusting component 42 may include a hydraulic rod directly connected to the output shaft of the drive motor 30. The smooth adjustment of the placement plate 41 is achieved through the extension and retraction of the hydraulic cylinder. This provides a large thrust and has good shock absorption performance, making it suitable for circuit board 60 protection structures that bear large weights or require smooth adjustment. The aforementioned adjustment component 42 structure can be flexibly selected or combined according to the size, weight and installation environment of the circuit board 60 to meet different application requirements, and does not limit the scope of protection of this utility model.

[0044] Reference Figure 3 and Figure 4 As shown, in an optional embodiment of the present invention, the protective device includes two adjusting components 40. Each adjusting component 40 further includes a partition plate 44 with a guide hole 441 and an adjusting rod 43 passing through the guide hole 441. One end of the adjusting rod 43 is connected to the adjusting member 42, and the other end passes through the guide hole 441 and is connected to the placement plate 41.

[0045] Specifically, by providing adjusting rods 43 connecting the placement plate 41 to each adjusting component 42, and by providing two relatively spaced partition plates 44 within the placement cavity 11, the placement cavity 11 can be divided into three independent spaces, including a first chamber for placing the circuit board 60, and two second chambers located on either side of the first chamber for arranging the two adjusting components 40 respectively. The presence of the two partition plates 44 ensures a reasonable spatial distance between the adjusting components 40 and the circuit board 60, preventing the movement of the adjusting components 40 from interfering with the circuit board 60 or components 61, optimizing the internal structural layout of the placement cavity 11, and improving the stability and safety of the overall device. Meanwhile, each partition plate 44 is provided with a guide hole 441. One end of the adjusting rod 43 is connected to the adjusting component 42, and the other end passes through the guide hole 441 and is connected to the placement plate 41. The guide hole 441 has multiple functions: on the one hand, it provides sufficient installation space to facilitate a reliable connection between the adjusting rod 43 and the placement plate 41; on the other hand, it guides and limits the adjusting rod 43, effectively reducing the vibration and displacement deviation generated by the adjusting rod 43 during the lifting process, thereby ensuring the smooth movement and precise positioning of the placement plate 41 and the circuit board 60. Through the above structural design, the optional embodiment of this utility model can not only realize the height adjustment and safe suspension protection of the circuit board 60, but also improve the movement accuracy and reliability of the adjusting component 40, avoid damage to the circuit board 60 or components 61 caused by interference from the adjusting component 40, and improve the overall stability, service life and operational safety of the device.

[0046] To ensure comprehensive protection of the circuit board 60 within the placement cavity 11, the housing 10 is typically equipped with a cover 70. The cover 70 has an opening slot 71, through which two placement plates 41 extend from the placement cavity 11. When the cover 70 is in place on the housing 10, the tops of the two placement plates 41 extend into the opening slot 71 and abut against its inner wall. This design allows the cover 70 to provide stable support and restraint with the placement plates 41 when in place on the housing 10, effectively protecting the circuit board 60 and its internal adjustment components 40, and preventing accidental displacement of the circuit board 60 during transportation, assembly, or operation. The opening slot 71 of the cover 70 cooperates with the protruding portion at the top of the placement plates 41, enabling the cover 70 to achieve precise positioning and restraint based on the placement plates 41. This simplifies the fixing method of the cover 70, eliminates the need for additional complex mounting components, and improves the ease of assembly and reliability of the device.

[0047] Reference Figure 3As shown, in an optional embodiment of the present invention, the adjusting member 42 includes an adjusting screw 421 that is driven to be connected to the output shaft of the drive motor 30 and an adjusting slider 422 screwed onto the adjusting screw 421. The adjusting slider 422 is used to drive the placement plate 41 to move. The partition plate 44 is provided with a guide groove 442 that is adapted to the adjusting slider 422, and the adjusting slider 422 extends into the guide groove 442.

[0048] Specifically, in this embodiment, to ensure the precise hovering of the placement plate 41 in the moving direction of the adjusting member 42, the adjusting member 42 preferably adopts a cooperative structure of adjusting screw and adjusting slider 422. Furthermore, the partition plate 44 is also provided with a guide groove 442 adapted to the adjusting slider 422. One end of the adjusting slider 422 extends into the guide groove 442. Through the precise arrangement of the guide groove 442, the adjusting slider 422 can obtain all-round and balanced guiding support when sliding along the direction of the adjusting screw 421, significantly reducing the shaking, offset, or tilting caused by uneven force, external vibration, or operational interference, ensuring the smooth and precise movement of the placement plate 41 and the circuit board 60 it carries during the lifting process. Simultaneously, this guiding structure can also play a shock-absorbing role when the drive motor 30 stops operating, effectively suppressing the slight shaking of the adjusting member 42 caused by inertia or external force, thereby reducing the impact risk of the circuit board 60 and its components 61 during adjustment or transportation. By combining limit and guide design, not only is the stability and reliability of adjustment component 40 enhanced, but the overall performance of the entire circuit board 60 protection device in terms of height adjustment, suspension support and multi-specification adaptation is also optimized, providing a safer, more precise and controllable protection environment for circuit board 60.

[0049] Furthermore, to further improve the stability and guiding accuracy of the adjusting slider 422 during the lifting and lowering process, guide grooves 442, identical to those of the partition plate 44, can be opened on the inner walls of opposite sides of the placement cavity 11. This allows both ends of the adjusting slider 422 to extend into the guide grooves 442 on the partition plate 44 and the inner wall, respectively, forming a double-sided guiding constraint. Through the all-round limiting and balanced support of the adjusting slider 422 by the double-sided guide grooves 442, the slight sway or uneven force that may occur with a single-sided guiding structure can be effectively avoided. This achieves smooth linear motion of the adjusting slider 422 driven by the adjusting screw 421, significantly improving the smoothness of the placement plate 41's operation and the safety of carrying the circuit board 60. The double-sided guiding structure not only enhances the shock resistance and anti-interference capability of the entire adjusting assembly 40, but also maintains highly stable guiding accuracy under long-term operation or transportation vibration environments, providing a safer and more reliable protective support environment for circuit boards 60 of different sizes and weights, further improving...

[0050] Reference Figure 3As shown, in an optional embodiment of this utility model, each partition plate 44 is provided with a fixed folding plate 47, and the end of the adjusting screw 421 away from the output shaft of the drive motor 30 is rotatably connected to the fixed folding plate 47.

[0051] Specifically, to further enhance the stability of the adjusting screw 421 and the cover 70, a fixing baffle 47 is typically provided on the top of the placement plate 41. One end of the fixing baffle 47 is connected to the top of the placement plate 41, and the other end is connected to the top of the housing 10, forming a stepped limiting structure. When the cover 70 is installed on the housing 10, the stepped limiting structure provides additional positioning and support, ensuring a tight fit between the cover 70, the placement plate 41, and the housing 10, preventing the cover 70 from shaking or misaligning during use. Simultaneously, this structure provides ample installation space inside the placement cavity 11 for arranging the drive motor 30, the adjusting screw 421, the adjusting component 42, and other adjusting components 40, ensuring smooth operation of each component under protected conditions. Furthermore, the fixing baffle 47 can also be used to fix the adjusting screw 421: the bottom of the adjusting screw 421 is connected to the drive motor 30, and the top is fixed to the fixing baffle 47 via a rotatable connection, achieving stable support and rotational guidance for the screw during lifting and lowering. This design ensures that the adjusting screw 421 will not deviate or wobble during operation, thereby improving the motion accuracy and reliability of the adjusting assembly 40. In summary, the coordinated design of the cover 70, the placement plate 41, and the fixing folding plate 47 not only provides all-around suspended protection for the circuit board 60 but also enhances the structural stability, operational safety, and overall reliability of the device, meeting the safe storage and operation requirements of circuit boards 60 of various specifications.

[0052] Reference Figure 4 and Figure 5 As shown, in an optional embodiment of the present invention, the adjusting rod 43 includes a first adjusting tube 431 connected to the adjusting member 42, a first elastic member 434 disposed at the end of the first adjusting tube 431 away from the adjusting member 42, and an adjusting rod 433. One end of the adjusting rod 433 is slidably disposed on the first adjusting tube 431, and the other end passes through the guide hole 441 and is connected to the placement plate 41. The first elastic member 434 is used to drive the adjusting rod 433 to slide and reset along a first direction, and the first direction is perpendicular to the moving direction of the adjusting member 42.

[0053] Specifically, through the coordinated action of the adjusting rod 43, the elastic element, and the placement plate 41, the circuit board 60 achieves adaptive protection in height and width within the placement cavity 11. Specifically, each adjusting rod 43 includes a first adjusting tube 431 connected to the adjusting element 42, and a first elastic element 434 and an adjusting rod 433 located at the end of the first adjusting tube 431 away from the adjusting element 42. One end of the adjusting rod 433 is slidably mounted on the first adjusting tube 431, and the other end passes through the guide hole 441 and connects to the placement plate 41. The first elastic element 434 acts on the adjusting rod 433 along a first direction to achieve reset, this first direction being perpendicular to the moving direction of the adjusting element 42. Simultaneously, to accommodate differences in the length of the circuit board 60 body, this embodiment provides a slidably connected adjusting rod 433 at the end of the first adjusting tube 431, and the first elastic element 434 and the adjusting rod 433 are arranged together within the inner hole of the first adjusting tube 431.

[0054] The first elastic element 434 can be a compression spring or a rubber elastomer, installed in the inner hole of the first adjusting tube 431, and acts on the adjusting rod 433, allowing it to slide flexibly along the first direction. This automatically adjusts the extension position of the adjusting rod 433 according to different length dimensions of the circuit board 60, achieving adaptive adaptation in the length direction. Through this design, regardless of the length of the circuit board 60 or the complexity of the component 61 layout, the placement plate 41 can be precisely positioned and supported according to the actual dimensions of the circuit board 60, significantly improving the versatility and adaptability of the device in applications with multiple specifications of circuit boards 60. Furthermore, the first elastic element 434 not only has reset and automatic adjustment functions, but also provides good buffering and shock absorption during transportation, installation, or use. When external impacts or vibrations occur, the elastic element can absorb some kinetic energy, reducing the impact on the adjusting rod 433 and the placement plate 41, thereby effectively protecting the circuit board 60 and its components 61 from vibration or external force damage, further improving the stability and safety of the overall structure. This dual-function design enables the device to provide precise adjustment capabilities while also possessing excellent shock resistance and reliability, making it suitable for various applications such as electronics manufacturing, testing, and transportation.

[0055] Reference Figure 4 and Figure 5 As shown, in an optional embodiment of this utility model, each adjustment component 40 includes two placement plates 41 and adjustment rods 43 respectively connected to the two placement plates 41. The adjustment rods 43 also include a second adjustment tube 432 and a second elastic member 435 disposed at the end of the adjustment rod 433 away from the first adjustment tube 431. The first adjustment tube 431 and the adjustment rod 433 are both L-shaped. One end of the second adjustment tube 432 is slidably connected to the adjustment rod 433, and the other end is connected to the placement plate 41. The second elastic member 435 is used to drive the second adjustment tube 432 to slide and reset along the second direction. The first direction, the second direction and the movement direction of the adjustment member 42 are perpendicular to each other.

[0056] Specifically, by setting two independent placement plates 41 in each adjustment component 40 and connecting them to two adjustment rods 43 respectively, the circuit board 60 is supported and fixed at multiple points on both sides, which can effectively avoid uneven force, shaking or tipping caused by single-point contact, thereby ensuring the stability and safety of the circuit board 60 during transportation, assembly and testing. Each adjusting link 43 mainly consists of an L-shaped first adjusting tube 431, an L-shaped adjusting rod 433, a second adjusting tube 432, and a second elastic element 435. Both the first adjusting tube 431 and the adjusting rod 433 are L-shaped. This structure allows the adjusting rod 433 to slide parallel within the first adjusting tube 431 along a first direction perpendicular to the lifting direction of the adjusting component 42, flexibly adjusting the relative distance between the opposing placement plates 41 of the two adjusting components 40, thus adapting to circuit boards 60 of different lengths and achieving precise length adaptation. It also adjusts the sliding direction of the second adjusting tube 432. The other end of the adjusting rod 433 is slidably connected to the second adjusting tube 432, which is then fixedly connected to the placement plate 41. The second elastic element 435, positioned between the two, enables automatic reset and buffering in the second direction, flexibly adjusting the distance between the two placement plates 41 within one adjusting component 40, achieving precise width adjustment to accommodate different width specifications and layout requirements of the circuit board 60. By setting the first direction, the second direction and the moving direction of the adjusting member 42 to a three-dimensional spatial adjustment relationship that are perpendicular to each other, the entire device can be freely adjusted in three dimensions: height, length and width, ensuring that the circuit board 60 obtains precise suspension support and protection in three-dimensional space.

[0057] In summary, both the first adjusting tube 431 and the adjusting rod 433 adopt an L-shaped design, which not only optimizes the sliding direction and installation layout of each adjusting component, but also effectively reduces the space occupied by the mechanism, making the three-dimensional adjusting structure more compact and reasonable. Combined with the reset and buffering functions of the first and second elastic elements 435, vibration and impact forces can be absorbed during adjustment, preventing the circuit board 60 from shifting, loosening, or damage to components 61 due to external impacts or vibrations. Through this multi-layered, multi-degree-of-freedom adjusting component 40 design, this invention significantly improves the adaptability to circuit boards 60 of various sizes and layouts, reduces the complexity of repeated manual adjustments, enhances operational efficiency and the safety and reliability of the device, and possesses extremely high practical value and promising prospects for widespread application.

[0058] It should be noted that the design of the second elastic element 435 is similar to that of the first elastic element 434. It can also be selected as a compression spring or a rubber elastomer according to actual needs, and is installed at the end of the adjusting rod 433 in conjunction with the second adjusting tube 432. This is used to drive the second adjusting tube 432 to slide and reset in the second direction. Through the action of the second elastic element 435, when the adjusting rod 433 extends or retracts relative to the second adjusting tube 432, the second adjusting tube 432 can automatically return to its original position after adjustment, thereby ensuring stable support and reliable positioning of the placement plate 41 in the width direction. Since the width specifications of the circuit board 60 and the layout of the components 61 vary, the second elastic element 435 provides flexible adjustment capability, enabling the adjusting assembly 40 to maintain good adaptability and accuracy when installing circuit boards 60 of different widths. At the same time, the second elastic element 435 not only has an automatic reset function, but also provides effective buffering and shock absorption during device operation or transportation, absorbing the impact force generated by external factors such as collisions and vibrations, preventing the shaking of the placement plate 41 and damage to the components 61 of the circuit board 60, further improving the safety and reliability of the entire protection device. Through this dual-elastic buffer structure that cooperates with the first elastic element 434, this utility model can achieve flexible adjustment and comprehensive protection in three directions: height, length and width, greatly enhancing the practicality and promotional value of the device.

[0059] Reference Figure 4 As shown, in an optional embodiment of this utility model, four placement plates 41 are on the same motion plane, and each placement plate 41 has an L-shaped limiting plate 45 on its upper surface. The placement plate 41 and the L-shaped limiting plate 45 form a limiting groove 46 to limit the movement of the circuit board 60.

[0060] Specifically, by placing the four placement plates 41 on the same plane of motion, when the circuit board 60 is fixed in the placement cavity 11, the four placement plates 41 are located at the four corner areas of the circuit board 60, forming a four-point uniform support. Since the four placement plates 41 are strictly on the same plane of motion, it can ensure that the circuit board 60 maintains an overall horizontal state during the up-down adjustment or installation process, avoiding the risk of the corners of the circuit board 60 lifting or uneven force due to the support points not being on the same plane, thereby effectively preventing the risk of the circuit board 60 lifting, deforming or even breaking. Each placement plate 41 has an L-shaped limiting fold plate 45 on its upper surface. The placement plate 41 and the L-shaped limiting fold plate 45 together form a limiting groove 46, and the opening of the limiting groove 46 faces the center of the placement cavity 11. Since the L-shaped limiting fold plate 45 has two mutually perpendicular bent edges, it can limit the edge of the circuit board 60 from two directions, ensuring the positional accuracy of the circuit board 60 during placement and preventing displacement or shaking in the front-back or left-right directions during transportation or equipment operation, thereby further enhancing the overall stability of the circuit board 60. This limiting groove 46 structure is particularly suitable for the installation and protection of square or near-square circuit boards 60. The four placement plates 41 and their limiting grooves 46 form a spatial layout of four-point support and four-corner limiting, enabling the circuit board 60 to be accurately centered in the placement cavity 11 while maintaining a safe gap with the walls of the placement cavity 11 in all directions, achieving a suspended protection effect. The L-shaped limiting plate 45 not only simplifies assembly and disassembly operations, facilitating quick insertion and placement of the circuit board 60, but also absorbs edge impacts to a certain extent, reducing the risk of damage to the edges or corners of the circuit board 60 due to concentrated force. Furthermore, by ensuring that the openings of the four limiting slots 46 all face the center of the placement cavity 11, it ensures that the circuit board 60 slides into the limiting slots 46 along the central direction during installation, greatly improving assembly convenience and positioning accuracy.

[0061] Furthermore, the L-shaped limiting folding plate 45 not only forms a limiting groove 46 together with the placement plate 41 to achieve precise positioning and protection of the edge of the circuit board 60, but also cooperates with the first elastic element 434 and the second elastic element 435 set in the adjusting rod 43 to form a multi-directional buffer and limiting protection structure. Specifically, the first elastic element 434 is used to drive the adjusting rod 433 to slide and reset along the first direction, and the second elastic element 435 is used to drive the second adjusting tube 432 to slide and reset along the second direction. The two side folding plates of the L-shaped limiting folding plate 45 are located in the first direction and the second direction respectively, and the two respectively realize the flexible adjustment and automatic return function of the placement plate 41 in the length and width directions. Through the combined action of the L-shaped limiting plate 45 and the two-stage elastic elements, when the circuit board 60 is clamped between the four limiting slots 46, the L-shaped limiting plate 45 can form a surface contact limiting on the two adjacent sides of the circuit board 60. Meanwhile, the elastic pre-tightening force provided by the first elastic element 434 and the second elastic element 435 can provide flexible constraint on the circuit board 60, thereby ensuring positioning accuracy while avoiding rigid compression and reducing edge damage or stress concentration of the circuit board 60 caused by external forces or vibrations. Furthermore, during transportation or operation, if the circuit board 60 experiences a slight displacement, the restoring force of the elastic elements will drive the placement plate 41 and the limiting plate to automatically return to their initial positions, re-limiting the circuit board 60 in the central area, achieving dual protection of passive protection and active correction.

[0062] In summary, by adding L-shaped limiting plates 45 and constructing limiting grooves 46 on each placement plate 41, not only is high-precision positioning and multi-directional limiting protection of the square circuit board 60 achieved, but the adaptability and safety of the device are also improved, providing more stable and reliable support and protection for the circuit board 60 in scenarios such as transportation, storage, and maintenance. Furthermore, the cooperation between the L-shaped limiting plates 45 and the first elastic element 434 and the second elastic element 435 enables the entire circuit board 60 protection device to work synergistically in terms of multi-dimensional adjustment, suspended positioning, and edge protection, significantly improving the device's buffering performance, impact resistance, and service life, providing comprehensive safety protection for circuit boards 60 of different sizes and layouts.

[0063] Reference Figure 6 As shown, in an optional embodiment of this utility model, it further includes a deformable pressure frame 50 and a fixing member 80 for fixing the deformable pressure frame 50 to the L-shaped limiting folding plate 45. The deformable pressure frame 50 includes four L-shaped folding tubes 51 and four sliding rods 52. The two ends of each sliding rod 52 are slidably connected to two adjacent L-shaped folding tubes 51, so that the deformable pressure frame 50 forms a deformable rectangular frame structure. The L-shaped folding tubes 51 have through fixing holes 511, and the fixing member 80 is inserted through the fixing holes 511 and then connected to the L-shaped limiting folding plate 45.

[0064] Specifically, in this embodiment, the circuit board 60 protection device further includes a deformation pressure frame 50 and a fixing member 80 for firmly mounting the deformation pressure frame 50 on the L-shaped limiting folding plate 45. The number of fixing members 80 is one. When there are 80 fixing members, two diagonally opposite L-shaped limiting folding plates 45 are selected as the fixing positions of the deformation pressure frame 50. The deformation pressure frame 50 is composed of four interconnected L-shaped folding tubes 51 and four sliding rods 52, forming a rectangular frame structure. Its dimensions are adjustable through sliding connections. Specifically, the four L-shaped folding tubes 51 are distributed at the four corners of the rectangular frame, and the four sliding rods 52 are located in the middle of the four sides of the rectangular frame. Each sliding rod 52 has its two ends slidably connected to two adjacent L-shaped folding tubes 51, thereby achieving relative extension and contraction and angle fine-tuning between the folding tubes. For example, four L-shaped tubes 51 are numbered A1, A2, A3, and A4, and four sliding rods 52 are numbered B1, B2, B3, and B4. The two ends of A1 are connected to sliding rods B1 and B4 respectively; the two ends of A2 are connected to B1 and B2 respectively; the two ends of A3 are connected to B2 and B3 respectively; and the two ends of A4 are connected to B3 and B4 respectively. Through this alternating sliding connection of L-shaped tubes 51, sliding rods 52, and L-shaped tubes 51, the deformation pressure frame 50 can be evenly adjusted in both directions according to the actual size of the circuit board 60, corresponding to adjustments in the length and width of the circuit board 60, thus achieving flexible shrinkage and adaptation of the frame.

[0065] Each L-shaped bend 51 has a through-hole 511 for mounting. A fastener 80 can pass through this hole 511 and connect to the top of the L-shaped limiting bend 45, thus securely mounting the deformation pressure frame 50 above the four limiting bends. The installed deformation pressure frame 50 forms an upper and lower mating structure with the four placement plates 41 below: the lower placement plates 41 clamp the bottom and edge of the circuit board 60 through lifting adjustment and the limiting bends, while the upper deformation pressure frame 50 provides slight pressure and auxiliary fixation to the upper surface or edges of the circuit board 60 by adjusting the length of the slide rod 52. This bidirectional clamping and limiting structure not only effectively prevents the circuit board 60 from shaking and shifting during transportation or operation, but also provides additional protection for the protruding components 61 on the board, avoiding interference and accidental collisions. The L-shaped bend 51 and slide rod 52 design of the deformation pressure frame 50, in addition to their deformable and adjustable characteristics, also provide a certain degree of buffering and contact protection for the edges and surface of the circuit board 60. Together with the lower limiting groove 46, elastic element and placement plate 41, a triple protection structure is formed, which significantly improves the stability and impact resistance of the circuit board 60.

[0066] The fastener 80 can be flexibly selected according to actual application needs, including but not limited to the following forms: high-strength and reliable fixing is achieved by using standard machine screws, hex bolts, etc., in conjunction with the fixing holes 511 and the threaded holes of the folding plate; quick installation and removal of the deformation pressure frame 50 can be achieved using plug-in clips or spring pins, suitable for occasions where circuit boards 60 are frequently replaced; knob-type fasteners provide sufficient tightening force and are easy to manually adjust; in environments with low vibration resistance requirements, magnetic fasteners 80 can be used to quickly position the deformation pressure frame 50 on the top of the limiting folding plate. Through the above fixing methods, the deformation pressure frame 50, together with the placement plate 41 and the limiting folding plate, forms multi-dimensional protection and constraint from the top, bottom, and sides, ensuring that the circuit board 60 remains in a stable suspended protective state during installation, transportation, and debugging. It can also be flexibly adjusted for circuit boards 60 of different sizes and thicknesses, significantly improving the versatility of the device and the overall protection effect. Meanwhile, since the deformation pressure frame 50 needs to be embedded in the placement cavity 11 when it is fixed on the L-shaped limiting folding plate 45, a pair of flexible handles 54 are also provided on the deformation pressure frame 50 for easy hand lifting in order to facilitate loading and unloading of the deformation pressure frame 50. The flexible handles 54 are usually located on the L-shaped folding tube 51. After loosening the fixing member 80, the deformation pressure frame 50 can be taken out by lifting the flexible handles 54 by hand, which is convenient and quick.

[0067] It should be noted that, in order to further improve the safety protection performance of the circuit board 60, this embodiment also incorporates shock-absorbing treatments for the placement plate 41, the L-shaped limiting plate 45, and the deformation pressure frame 50. Specifically, to prevent the edges of the circuit board 60 from making hard contact with the placement plate 41, the L-shaped limiting plate 45, or the deformation pressure frame 50 during the fixing process in the limiting groove 46, which could potentially cause localized pressure marks or minor damage, corresponding shock-absorbing blocks are typically disposed on the surfaces of the placement plate 41, the L-shaped limiting plate 45, and the deformation pressure frame 50. The shock-absorbing blocks can be made of elastic materials such as rubber, silicone, sponge, or cotton. These materials can generate buffer deformation when the circuit board 60 contacts the limiting structure, effectively absorbing external impacts and vibrations, and reducing the risk of concentrated stress on the circuit board 60 and its components 61. It is worth noting that in the vertical direction of the movement of the adjusting component 42, the deformation buffer limit distance of the damping block must be strictly controlled within the preset safety distance, that is, less than the preset safety distance set by the initial position detector 20, so as to avoid the circuit board 60 from contacting the inner wall of the cavity or other components due to excessive deformation of the damping block, thereby affecting the suspension protection effect of the circuit board 60. By reasonably designing the position, thickness and material hardness of the damping block, while ensuring the safety clearance of the circuit board 60 in the horizontal and vertical directions, flexible buffering between the circuit board 60 and the placement plate 41, the L-shaped limiting folding plate 45 and the deformation pressure frame 50 can be achieved. This shock absorption measure, together with the first elastic element 434, the second elastic element 435, and the third elastic element 53, forms a synergistic protection system: the shock absorption block mainly absorbs external impacts and micro-vibrations, while each elastic element provides automatic reset and flexible adjustment in the height, length, and width directions, so that the circuit board 60 always remains in a safe suspended state, with uniform force and stable position within the placement cavity 11, thereby significantly improving the buffering performance, impact resistance, and service life of the entire protection device, providing comprehensive and multi-dimensional safety protection for circuit boards 60 of different sizes and layouts.

[0068] Reference Figure 6 As shown, in an optional embodiment of the present invention, the deformation pressure frame 50 further includes a plurality of third elastic elements 53, which are respectively disposed on the L-shaped folded tube 51 and are used to drive the slide rod 52 to reset.

[0069] Specifically, multiple third elastic elements 53 are added to the deformation pressure frame 50. Each third elastic element 53 is arranged on the L-shaped bend tube 51 and is specifically used to reset the slide rod 52. The number of third elastic elements 53 can be flexibly configured according to actual needs: in a more compact design, four third elastic elements 53 can be set, with each slide rod 52 corresponding to a reset elastic support to ensure that the overall frame has basic reset capability; in cases requiring higher adjustment accuracy and stability, eight third elastic elements 53 can be configured, that is, one third elastic element 53 is installed at each end of each L-shaped bend tube 51 to achieve synchronous elastic drive at both ends of the slide rod 52, thereby enhancing the balance of reset and structural stability. With the addition of the third elastic elements 53, the deformation pressure frame 50 can not only achieve smooth and stable deformation adjustment when adjusting the size of the circuit board 60, but also automatically drive the slide rod 52 back to its original position after adjustment, so that the frame as a whole returns to the preset or neutral state, avoiding problems such as frame loosening and unstable fixing of the circuit board 60 due to the free displacement of the slide rod 52. In conjunction with the adjustment function of the first elastic element 434 and the second elastic element 435 driving the placement plate 41, the third elastic element 53 can compensate for the frame offset caused by the adjustment of the height or position of the placement plate 41, so that the deformation pressure frame 50 always fits and adapts to circuit boards 60 of different sizes and thicknesses, realizing the coordinated linkage between the upper clamping and the lower support.

[0070] This multi-elastic component design gives the deformation clamping frame 50 stronger self-adaptability and buffering performance: on the one hand, it can quickly adapt to dimensional changes when adjusting the circuit board 60, ensuring that the frame and circuit board 60 always maintain appropriate constraint force; on the other hand, it can absorb external impacts and vibrations, reducing the shaking and stress concentration of the circuit board 60 during operation and transportation, thereby achieving a safer and more precise fixing effect. Overall, this structure not only improves the compatibility and flexibility of the device with multiple specifications of circuit boards 60, but also extends its service life, making it suitable for widespread application in electronic manufacturing and testing scenarios that require high stability and high protection levels.

[0071] It should be noted that the design principle of the third elastic element 53 is similar to that of the first elastic element 434 and the second elastic element 435. Its material can be selected from compression springs, tension springs, or rubber elastomers according to actual needs. The third elastic element 53 can be directly installed inside the inner hole of the L-shaped bend tube 51, or it can be arranged on the outer surface of the L-shaped bend tube 51. The specific position and quantity can be flexibly adjusted according to the size, weight, and frame structure design of the circuit board 60. Through the action of the third elastic element 53, the slide rod 52 can smoothly reset during the adjustment of the deformation pressure frame 50, realizing the automatic return and stable support of the variable rectangular frame, thus adapting to circuit boards 60 of different sizes, thicknesses, and layouts. The multi-elastic buffer system formed in conjunction with the first elastic element 434 and the second elastic element 435 enables the entire circuit board 60 protection device to achieve precise adjustment and comprehensive protection in two directions, enhancing adaptability, ease of operation, and the practical value and promotion potential of the device in various circuit board 60 application scenarios.

[0072] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model by those skilled in the art should be included within the scope of protection of this utility model.

Claims

1. A circuit board protection device, wherein the protection device and the circuit board are applied within a housing having a placement cavity, characterized in that, The protective device includes: A position detector, located inside the placement cavity, is used to detect whether the component protruding the largest height from the surface of the circuit board has reached a preset safe distance. An adjustment assembly is disposed within the placement cavity. The adjustment assembly includes a placement plate for supporting the circuit board and an adjustment member connected to the placement plate. The adjustment member is used to move the placement plate. A drive motor is mounted on the housing and electrically connected to the position detector. The output shaft of the drive motor is drivenly connected to the adjusting component.

2. The circuit board protection device according to claim 1, characterized in that, The protective device includes two adjustment components. Each adjustment component further includes a partition plate with a guide hole and an adjustment rod passing through the guide hole. One end of the adjustment rod is connected to the adjustment member, and the other end passes through the guide hole and is connected to the placement plate.

3. The circuit board protection device according to claim 2, characterized in that, The adjusting linkage includes a first adjusting tube connected to the adjusting member, a first elastic member disposed at the end of the first adjusting tube away from the adjusting member, and an adjusting rod. One end of the adjusting rod is slidably disposed on the first adjusting tube, and the other end passes through the guide hole and is connected to the placement plate. The first elastic member is used to drive the adjusting rod to slide and reset along a first direction, and the first direction is perpendicular to the moving direction of the adjusting member.

4. The circuit board protection device according to claim 3, characterized in that, Each of the adjustment components includes two placement plates and adjustment rods respectively connected to the two placement plates. The adjustment rods also include a second adjustment tube and a second elastic member disposed at the end of the adjustment rod away from the first adjustment tube. The first adjustment tube and the adjustment rod are both L-shaped. One end of the second adjustment tube is slidably connected to the adjustment rod, and the other end is connected to the placement plate. The second elastic member is used to drive the second adjustment tube to slide and reset along the second direction. The first direction, the second direction, and the movement direction of the adjustment member are all perpendicular to each other.

5. The line board protection apparatus according to claim 4, wherein The four placement plates are on the same plane of motion, and each placement plate has an L-shaped limiting plate on its upper surface. The placement plate and the L-shaped limiting plate form a limiting groove to restrict the movement of the circuit board.

6. The line board protection apparatus according to claim 5, wherein It also includes a deformation pressure frame and a fixing member for fixing the deformation pressure frame to the L-shaped limiting plate. The deformation pressure frame includes four L-shaped tubes and four sliding rods. The two ends of each sliding rod are slidably connected to two adjacent L-shaped tubes, so that the deformation pressure frame forms a deformable rectangular frame structure. The L-shaped tubes have through holes, and the fixing member is inserted through the holes and connected to the L-shaped limiting plate.

7. The line board protection apparatus according to claim 6, wherein The deformation pressure frame also includes a plurality of third elastic elements, which are respectively disposed on the L-shaped folded tube and are used to drive the slide rod to reset.

8. The circuit board protection device according to claim 2, characterized in that, The adjusting component includes an adjusting screw that is driven to the output shaft of the drive motor and an adjusting slider screwed onto the adjusting screw. The adjusting slider is used to move the placement plate. The partition plate is provided with a guide groove that matches the adjusting slider, and the adjusting slider extends into the guide groove.

9. The line board protection apparatus according to claim 8, wherein Each of the partition plates is provided with a fixed baffle plate, and the end of the adjusting screw away from the output shaft of the drive motor is rotatably connected to the fixed baffle plate.

10. The circuit board protection device according to any one of claims 1-9, characterized in that, The position detector is either a laser sensor or a capacitive sensor.

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