Clamping mechanism and intelligent terminal protection device

Abstract

The invention discloses a clamping mechanism and an intelligent terminal protection device. The clamping mechanism comprises a base frame, multiple sets of clamping parts, multiple first elastic parts and a driving assembly, and the base frame comprises a frame body and a beam body; the clamping parts are distributed on the side, away from the beam body, of the frame body in a surrounding mode, and the clamping parts have a first state of overturning towards the center of the frame body and a second state of overturning towards the outside of the frame body; the first elastic piece is used for enabling the clamping part to have elastic potential energy for turning over towards the center of the frame body; the driving assembly is provided with a plurality of driving parts to drive the clamping component to switch a first state and a second state, and when the clamping component is in the second state, the first elastic piece stores energy and keeps stable; when the clamping component is in the first state, the first elastic piece releases energy and drives the clamping component to turn over; the intelligent terminal protection device applies the clamping mechanism. According to the intelligent terminal protection device, convenient and rapid disassembly and assembly and high-reliability locking can be achieved, and the problems that installation is tedious, loosening is prone to occurring and adaptability is poor can be solved through the intelligent terminal protection device applying the clamping mechanism.

Description

Technical Field

[0001] This invention relates to the field of protective device technology, and in particular to a clamping mechanism and a smart terminal protective device. Background Technology

[0002] With the rapid development of the Internet of Things, smart grids, and smart city construction, various smart circuit terminals (such as smart meters, data collectors, edge computing gateways, and communication modules) are widely deployed in outdoor environments. These smart circuit terminals are exposed to the natural environment for extended periods, especially to harsh weather conditions such as rain, snow, and dust, which pose a serious threat to them. This can lead to short circuits in the internal circuits of the terminals, corrosion of components, and deterioration of insulation performance, resulting in functional failure, data loss, or even safety accidents.

[0003] Currently, the main shortcomings of existing rain protection measures on the market are as follows:

[0004] Bolted protective covers: The installation and disassembly process is cumbersome, requires the use of special tools, and is not conducive to the rapid inspection and replacement by maintenance personnel, resulting in low work efficiency.

[0005] Clip-on / sliding rail type protective covers: Although they are relatively easy to install, under long-term vibration, wind load or thermal expansion and contraction, the clips are prone to aging and wear, resulting in a decrease in locking force or even accidental opening, and insufficient reliability of waterproof sealing.

[0006] Simple protective covers: lack an effective locking mechanism, are easily knocked off by external forces (such as strong winds) or accidental human impact, and have unstable protective performance.

[0007] Therefore, there is an urgent need in the field for an intelligent terminal protection device that can achieve rapid tool-free loading and unloading and has a stable and reliable locking state to address the defects and shortcomings of the existing technology. Summary of the Invention

[0008] The purpose of this invention is to provide a clamping mechanism and a smart terminal protection device to solve the above-mentioned technical problems.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a clamping mechanism, comprising:

[0010] The base frame includes the frame body and the beams erected on one side of the frame body;

[0011] Multiple sets of clamping components are distributed around the side of the frame away from the beam. The clamping components have a first state of flipping towards the center of the frame and a second state of flipping towards the outside of the frame.

[0012] Multiple first elastic elements, each corresponding to a clamping component, are used to give the clamping component elastic potential energy to flip towards the center of the frame.

[0013] The drive assembly has multiple drive units that correspond one-to-one with the clamping component, and the drive units are used to drive the clamping component to switch between a first state and a second state.

[0014] The clamping component has a dead point position between its first state and second state. When the driving unit drives the clamping component to move from the first state past the dead point position and switch to the second state, the first elastic element stores energy and remains stable. When the clamping component moves from the second state past the dead point position and switch to the first state, the first elastic element releases energy and causes the clamping component to flip.

[0015] Preferably, the driving component includes:

[0016] A pivot, which passes through the beam body;

[0017] A frame, which is located at one end of a pivot and at the lower part of the beam;

[0018] Multiple connecting rods, one end of each connecting rod is hinged to the frame, and the other end is hinged to multiple sets of clamping components.

[0019] Preferably, when the pivot drives the frame to move downward, the frame can drive multiple connecting rods to rotate synchronously and make the connection side between the connecting rod and the frame lower than the connection side between the connecting rod and the frame, so as to drive multiple sets of clamping components to switch from the first state to the second state.

[0020] Preferably, the frame is provided with a limiting plate for limiting the position of the connecting rod. After the pivot drives the frame to move downward, the limiting plate presses against the upper edge of the connecting rod.

[0021] Preferably, when the frame moves downward, it can drive multiple connecting rods to rotate synchronously and make the connection side between the connecting rod and the frame higher than the connection side between the connecting rod and the frame, so as to drive multiple sets of clamping components to switch from the second state to the first state.

[0022] Preferably, a sliding part is provided at one end of the pivot facing the frame, and a limiting part is provided on the frame. The sliding part is slidably connected to the limiting part and is in clearance fit with the limiting part.

[0023] Preferably, the sliding part includes two adjusting discs disposed at the bottom end of the pivot, and the limiting part includes multiple limiting plates disposed on the frame. The multiple limiting plates are distributed around the pivot and located between the two adjusting discs, and the distance between the two adjusting discs is greater than the thickness of the limiting plates.

[0024] Preferably, the clamping component includes:

[0025] The hinged arm is rotatably connected to the base frame and is elastically hinged to the base frame via a first elastic element;

[0026] The connecting part is fixed to the side of the hinge arm facing the frame and is hinged to the connecting rod;

[0027] The engaging portion extends downward from the hinge arm and has an abutment section vertically at its bottom end.

[0028] Preferably, the side of the abutment section facing the frame is provided with locking serrations.

[0029] Preferably, the hinge arm is L-shaped, so that the hinge point between the connecting rod and the hinge arm, the hinge point between the hinge arm and the base frame, and the point of action of the engaging part form a lever relationship.

[0030] Preferably, the base frame is provided with multiple sets of support components. Each support component includes a guide rod connected to the base frame, the guide rod extending vertically downward, a support pad at the bottom end of the guide rod, and a second elastic element sleeved on the guide rod, the second elastic element pressing against the upper end of the support pad.

[0031] Preferably, the second elastic member undergoes elastic deformation when the clamping component moves from the first state past the dead point and switches to the second state, and when the clamping component moves from the second state past the dead point and switches to the first state.

[0032] The present invention also provides a smart terminal protection device, which uses the above-mentioned clamping mechanism and further includes a protective shell. The protective shell is detachably connected to the base frame, and the protective shell is provided with a clearance cavity for the hinge arm to rotate.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] 1. This solution achieves tool-free, rapid installation and removal through a convenient operation: "pressing down the base frame to switch the clamping component to the first state for locking, and pressing down the drive assembly to switch the clamping component from the first state to the second state for unlocking." This solves the problems of cumbersome installation, the need for specialized tools, and low maintenance efficiency associated with traditional bolt-fixing methods. Maintenance personnel can complete installation or disassembly within seconds without carrying or operating any tools, making it particularly suitable for scenarios requiring frequent maintenance or large-scale deployment.

[0035] 2. This solution creatively utilizes the self-locking principle after "passing the dead point." When the base frame is pressed down to fit against the smart terminal, the first elastic element releases its elastic energy and causes the clamping component to flip, locking the smart terminal. When the pressing drive assembly drives the clamping component past the dead point and switches to the second state, multiple connecting rods rotate synchronously, lowering the connection side between the connecting rod and the frame below the connection side between the connecting rod and the frame. At this point, the torsional force exerted by the first elastic element on the clamping component is converted into an internal force that keeps the overall structure stable and locked. This locking mechanism does not rely on easily aging buckles, effectively overcoming the risks of decreased locking force and accidental opening caused by vibration, material creep, or aging of buckle / slide rail protective covers, ensuring ultra-high reliability for long-term use.

[0036] 3. This solution features a sliding part on the pivot and a limiting part on the frame that fits the sliding part with a clearance. This allows the pivot to float vertically and horizontally within a certain range, automatically compensating for manufacturing and installation errors or minor deviations on the smart terminal casing. It effectively prevents the mechanism from jamming due to uneven force transmitted from the hinge arm in the clamping component to the pivot, and especially avoids jamming that may occur when the pivot is tilted.

[0037] 4. This solution involves setting up a support component and configuring a second elastic element on the support component. During installation, the support component first contacts and is pressed by the smart terminal, and the second elastic element is compressed to provide a buffering effect. More importantly, it prepares for precise pre-compression and force transmission so that the subsequent linkage is pushed upward, thereby triggering the locking mechanism to cross the dead point position. This is the key link for realizing the "press down to lock" function. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the clamping mechanism when the clamping component of the present invention is in the first state;

[0039] Figure 2 This is a schematic diagram of the clamping mechanism when the clamping component of the present invention is in the second state;

[0040] Figure 3 This is a schematic diagram of the structure of the driving component of the present invention driving two sets of clamping components facing each other to be in the first state;

[0041] Figure 4 This is a schematic diagram of the structure of the driving component of the present invention driving two sets of clamping components facing each other into the second state;

[0042] Figure 5 yes Figure 4 Enlarged view of part A;

[0043] Figure 6 This is the connecting rod of the present invention;

[0044] Figure 7 This is a structural diagram of the base frame and supporting components;

[0045] Figure 8 This is a schematic diagram of the driver component;

[0046] Figure 9 This is a schematic diagram of the structure connecting the hinged arm to a locking part;

[0047] Reference numerals: 1-Base frame, 11-Frame body, 12-Beam body, 2-Clamping component, 21-Hinged arm, 22-Connecting part, 23-Engaging part, 231-Abutting section, 232-Arch-shaped bending section, 3-First elastic element, 4-Drive assembly, 41-Pivot, 411-Adjusting disc, 42-Frame body, 421-Limiting plate, 422-Limiting piece, 423-Protrusion, 43-Connecting rod, 5-Supporting component, 51-Guide rod, 52-Supporting pad, 53-Second elastic element, 6-Protective shell, 61-Allowing cavity. Detailed Implementation

[0048] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] This embodiment provides a clamping mechanism and a smart terminal protection device, which aims to systematically solve the technical problems of existing protective covers, such as cumbersome installation and disassembly, insufficient long-term locking reliability, and poor adaptability to installation deviations.

[0052] See Figures 1 to 8 As shown, the clamping mechanism includes a base frame 1, multiple sets of clamping components 2, multiple first elastic elements 3, and a drive assembly 4. The base frame 1 includes a frame 11 and a beam 12 mounted on the upper side of the frame 11. In this embodiment, the frame 11 is a rectangular structure, but in other embodiments it can be a circular or other polygonal structure. The frame 11 is made of rigid material and has sufficient structural strength to support the whole. Multiple sets of clamping components 2 are distributed around the lower side of the frame 11, and the clamping components 2 have a first state of flipping towards the center of the frame 11 and a second state of flipping towards the outside of the frame 11. Multiple first elastic elements 3 correspond one-to-one with the clamping components 2, and are used to give the clamping components 2 elastic potential energy to flip towards the center of the frame 11; the drive assembly 4 has multiple drive parts corresponding one-to-one with the clamping components 2, and the drive parts are used to drive the clamping components 2 to switch between the first state and the second state. There is a dead point position between the first state and the second state of the clamping component 2. When the driving unit drives the clamping component 2 to cross the dead point position from the first state and switch to the second state, the first elastic member 3 stores energy and remains stable. When the clamping component 2 crosses the dead point position from the second state and switches to the first state, the first elastic member 3 releases energy and drives the clamping component 2 to flip.

[0053] See Figure 9 As shown, the smart terminal protection device utilizes the aforementioned clamping mechanism and also includes a protective shell 6. The protective shell 6 is made of corrosion-resistant material, capable of withstanding the erosion of harsh outdoor environments. The protective shell 6 is detachably connected to the base frame 1 via screws. Together, they define a clamping space that is closed at the top and sides and open at the bottom, used to accommodate the smart terminal. This ensures a reliable waterproof and dustproof sealing effect from the structural source, effectively preventing moisture from accumulating on the surface of the smart terminal or water from seeping into the smart terminal through gaps under lateral wind pressure. In other embodiments, the protective shell 6 can also have a clamping space that is closed at the top and bottom and has an opening on one side to accommodate vertically installed smart terminals. The protective shell 6 is provided with a clearance cavity 61 for the hinged arm 21 to rotate.

[0054] See Figure 1 , Figure 2 As shown, in this embodiment, the clamping components 2 are set to four sets. These four sets of clamping components 2 are respectively installed at the bottom of the four sides of the frame 11, which can clamp the smart terminal located in the clamping space. In other embodiments, only two sets of locking components can be set, symmetrically distributed at the bottom of the two long sides of the frame 11, which can stably clamp the shell of the smart terminal.

[0055] See Figure 3 , Figure 4 As shown, the drive assembly 4 includes a pivot 41, a frame 42 located at the bottom of the pivot 41, and multiple connecting rods 43. The pivot 41 passes through the top of the protective shell 6 and is slidably connected to the beam 12. The top of the pivot 41 is provided with a button for easy pressing. The frame 42 is located at the bottom of the pivot 41 and at the lower part of the beam 12. The frame 42 is generally cross-shaped and has four ends. In other embodiments, the frame 42 can also be set to other shapes, having multiple ends. The multiple connecting rods 43 are located at the four ends of the frame 42 respectively. One end of the connecting rod 43 is hinged to the end of the frame 42, and the other end is hinged to multiple sets of clamping components 2.

[0056] Each clamping component 2 is rotatably connected to the frame 11. The clamping component 2 consists of a hinge arm 21, a connecting part 22, and a locking part 23. The hinge arm 21 is rotatably mounted on the frame 11 via a pivot and is elastically hinged to the base frame 1 via a first elastic member 3. The connecting part 22 is fixed to the side of the hinge arm 21 facing inward toward the frame 11 and is hinged to the connecting rod 43. The locking part 23 extends downward from the hinge arm 21 and has a vertically arranged abutment section 231 at its bottom end. The abutment section 231 is bent inward to form a hook-shaped structure so that after the locking part 23 swings inward and closes, it is used to clamp the bottom of the smart terminal shell. In this embodiment, each hinge arm 21 is equipped with two engaging portions 23. For shorter sides of the smart terminal, only one engaging portion 23 can be configured on one hinge arm 21; for longer sides of the smart terminal, one hinge arm 21 can be equipped with three or more engaging portions 23 to ensure the uniform distribution of the engaging portions 23 on the base frame 1 and to ensure the uniformity of the force applied when the protective cover clamps the smart terminal. To further improve the stability after clamping, the abutment section 231 has clamping serrations distributed on the side facing the frame 11. The serrated contact can provide more contact points, resulting in higher stability after clamping.

[0057] In this embodiment, the first elastic element 3 is a double torsion spring. Both spring portions of the double torsion spring are sleeved on the pivot of the hinge arm 21. The retaining ring in the middle of the double torsion spring presses against the hinge arm 21, and the two straight arms rest on the frame 11, so that the hinge arm 21 has an elastic torque that drives the engaging part 23 to rotate towards the center of the frame 11 (i.e., flip down and close). It should be noted that in this invention, the hinge arm 21 is L-shaped so that the hinge point of the connecting rod 43 and the hinge arm 21, the hinge point of the hinge arm 21 and the base frame 1, and the point of action of the engaging part 23 form a lever relationship, so that the connecting rod 43 can more easily drive the hinge arm 21 to flip. Furthermore, the advantage of the L-shaped structure of the hinge arm 21 is that during the coordinated movement of the drive assembly 4, the connecting rod 43, and the clamping component 2, the distance between the hinge point of the hinge arm 21 and the drive assembly 4 will change due to the flipping of the hinge arm 21 in the clamping component 2. At this time, the connecting rod 43, as a rigid component, is obviously difficult to extend or retract in the length direction. Therefore, the L-shaped hinge arm 21 can play a good role in harmonizing the distance change without the need for additional adjustment structures, thus simplifying the structure of the clamping mechanism and improving its reliability as much as possible.

[0058] See Figure 6 , Figure 7 As shown, four connecting rods 43 correspond one-to-one with four sets of clamping components 2. Each connecting rod 43 is a rigid rod, with one end connected to the hinge hole on the hinge arm 21 of the clamping component 2 via a pin, and the other end connected to the frame 42 of the drive assembly 4 via a pin. Several ends of the frame 42 are provided with limiting plates 421 for limiting the position of the connecting rods 43. When the pivot 41 drives the frame 42 to move downward, the limiting plates 421 press against the upper edge of the connecting rods 43. The limiting plate 421 is located at the end of the frame 42 near the connecting rod 43. When the frame 42 moves the limiting plate 421 to press against the connecting rod 43, the first elastic member 3 still exerts a torsional force on the clamping member 2. The connecting part 22 transmits this force to the end of the connecting rod 43 that is hinged to the clamping member 2. This force has the tendency to lift the frame 42 upward with the connection end of the connecting rod 43 and the frame 42 as the fulcrum. However, since the lever arm of this force is much smaller than the lever arm of the weight of the frame 42, it is impossible to lift the frame 42 upward. Therefore, both the clamping member 2 and the frame 42 can remain in a stationary state.

[0059] When the pivot 41 drives the frame 42 to move downward, the frame 42 can drive multiple connecting rods 43 to rotate synchronously and make the connection side of the connecting rods 43 and the frame 42 lower than the connection side of the connecting rods 43 and the frame 11, so as to drive multiple sets of clamping components 2 to switch from the first state to the second state.

[0060] When the frame 11 moves downward, it drives multiple connecting rods 43 to rotate synchronously, and makes the connection side of the connecting rods 43 and the frame 42 higher than the connection side of the connecting rods 43 and the frame 11, thereby driving multiple sets of clamping components 2 to switch from the second state to the first state. When the frame 11 drives the clamping mechanism to move downward close to the smart terminal, the frame 42 will first contact the smart terminal and press against it, and then move upward relative to the frame 11, which is equivalent to the reverse movement of the vertical axis driving the frame 42 to move downward. Therefore, the clamping components 2 can also move in the opposite direction, that is, switch from the open state to the clamping state. The bottom of the frame 42 is provided with at least two protrusions 423 so that the frame 42 can contact the shell of the smart terminal earlier, thereby enabling the clamping components 2 to switch from the second state to the first state more quickly.

[0061] See Figure 4 , Figure 5 As shown, a sliding part is provided at one end of the pivot 41 facing the frame 42, and a limiting part is provided on the frame 42. The sliding part is slidably connected to the limiting part and is in clearance fit with the limiting part. The sliding part includes two adjusting discs 411 disposed at the bottom end of the pivot 41, and the limiting part includes multiple limiting plates 422 disposed on the frame 42. The multiple limiting plates 422 are distributed around the pivot 41 and located between the two adjusting discs 411, and the distance between the two adjusting discs 411 is greater than the thickness of the limiting plates 422. The clearance fit between the sliding part and the limiting part allows the adjusting plate 411 to have a small amount of floating and sliding space in the horizontal plane relative to the pivot 41. The distance between the adjusting plates 411 is greater than the thickness of the limiting plate 422, which allows the pivot 41 to have a small amount of floating and sliding space in the vertical direction. This automatically compensates for the asynchronous or positional deviations that may occur between the connecting rods 43 and the clamping component 2 during the movement. It can also automatically absorb the dimensional deviations and uneven force feedback generated by the connecting rods 43 and the clamping component 2 during manufacturing, assembly and long-term use. This fundamentally prevents the clamping mechanism from jamming due to the tilt of the pivot 41, and greatly improves the reliability and lifespan of the product.

[0062] See Figure 1 , Figure 8 As shown, the base frame 1 is also equipped with multiple sets of support components 5, which are arranged around the base frame 1. Each set of support components 5 includes a guide rod 51 fixed to the base frame 1, a support pad 52 slidably sleeved on the lower end of the guide rod 51, and a compression spring serving as a second elastic element 53. The support pad 52 is made of rubber and has a flat bottom to provide stable support. The compression spring is sleeved on the guide rod 51, with its two ends abutting against the surfaces of the base frame 1 and the support pad 52, respectively, thereby providing a downward elastic preload to the support pad 52.

[0063] In its initial free state, the bottom extension height of the support pad 52 is designed to be lower than the dead point of the transmission path of the clamping component 2, ensuring that the support component 5 can contact and be pressed with the smart terminal before the frame 42 during installation, and the second elastic element 53 is compressed. Therefore, when the clamping component 2 moves from the first state past the dead point and switches to the second state, and when the clamping component 2 moves from the second state past the dead point and switches to the first state, the second elastic element 53 undergoes elastic deformation. This process not only provides buffering, but more importantly, it pre-compresses the subsequent linkage 43 being pushed upward, thereby triggering the clamping component 5 to move past the dead point, which is a key step in realizing the "press-down lock" function.

[0064] Furthermore, when switching from the second state to the first state, the second elastic element 53 is first compressed to the bottom. During the process of the pivot 41 moving downward and before reaching the dead point, the required force is reduced due to the lengthening of the power arm. At this time, the second elastic element 53 can lift the base frame 1 upward, and the lower end of the frame 42 has space after passing the dead point.

[0065] It should be noted that in this invention, the special node of "dead point position" is defined as follows: When in the dead point position, the length direction of the connecting rod 43 and the direction of the force exerted by the first elastic element 3 on the clamping component 2 towards the connecting rod 43 tend to be collinear. At this time, after this force is transmitted through the connecting rod 43, its effective lever arm approaches zero, and the clamping mechanism is in a critical equilibrium state with the lowest transmission efficiency.

[0066] This dead point position is the necessary threshold for the clamping component 2 to switch between the first state and the second state: when the clamping component 2 passes this dead point position from the first state, the torque of the frame 42 of the drive assembly 4 on the connecting rod 43 becomes dominant, the clamping component 2 opens and is in a self-locking state, that is, the clamping component 2 enters the second state; when the clamping component 2 passes this dead point position from the second state, the clamping component 2 releases the self-locking state, the first elastic element 3 drives the clamping component 2 to swing quickly to the clamping position, and maintains the clamping state of the smart terminal.

[0067] The advantage of this embodiment is that:

[0068] The operation is extremely simple: the entire installation and disassembly process only requires a simple pressing action, without any tools, which greatly improves the efficiency of operation and maintenance.

[0069] Reliable locking height: Utilizing the self-locking principle of "switching between the first and second states after passing the dead point position", the locking state is stable, resistant to vibration and prevents loosening, which is far superior to the traditional design that relies on the elasticity of the buckle.

[0070] In the locked state, the engaging part 23 of the clamping component 2 is tightly hooked onto the smart terminal. At this time, the contact point between the engaging part 23 and the terminal forms an effective lever fulcrum. The entire clamping component 2 can be regarded as a lever, with its hinge point with the base frame 1 as the force-bearing point, and the engaging part 23 as the action point.

[0071] Strong adaptability: The floating connection design of drive component 4 effectively absorbs the cumulative errors of parts processing and assembly, as well as the slight deviation of the position of the smart terminal hook, preventing the clamping mechanism from jamming and ensuring smooth operation.

[0072] Comprehensive protection: The combination of the elastic locking part 23 and the elastic support part 5 not only avoids hard impact damage to the smart terminal, but also ensures that the protective shell 6 will not deform through evenly distributed pressure, thus having good sealing performance.

[0073] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0074] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping mechanism, characterized in that: include: The base frame (1) includes a frame (11) and a beam (12) erected on one side of the frame (11); Multiple sets of clamping components (2) are distributed around the side of the frame (11) away from the beam (12). The clamping components (2) have a first state of flipping towards the center of the frame (11) and a second state of flipping towards the outside of the frame (11). Multiple first elastic elements (3) correspond one-to-one with the clamping component (2) and are used to give the clamping component (2) elastic potential energy to flip towards the center of the frame (11); The drive assembly (4) has multiple drive units that correspond one-to-one with the clamping member (2), and the drive units are used to drive the clamping member (2) to switch between the first state and the second state. The clamping component (2) has a dead point position between its first state and second state. When the driving unit drives the clamping component (2) to cross the dead point position from the first state and switch to the second state, the first elastic element (3) stores energy and remains stable. When the clamping component (2) crosses the dead point position from the second state and switches to the first state, the first elastic element (3) releases energy and drives the clamping component (2) to flip.

2. The clamping mechanism as described in claim 1, characterized in that: The driving component (4) includes: A pivot (41) is inserted inside the beam body (12); A frame (42) is provided at one end of a pivot (41) and located at the lower part of a beam (12); Multiple connecting rods (43), one end of each connecting rod (43) is hinged to the frame (42), and the other end is hinged to multiple sets of clamping components (2).

3. The clamping mechanism as described in claim 2, characterized in that: When the pivot (41) drives the frame (42) to move downward, the frame (42) can drive multiple connecting rods (43) to rotate synchronously and make the connection side of the connecting rod (43) and the frame (42) lower than the connection side of the connecting rod (43) and the frame (11), so as to drive multiple sets of clamping components (2) to switch from the first state to the second state.

4. The clamping mechanism as described in claim 3, characterized in that: The frame (42) is provided with a limiting plate (421) for limiting the position of the connecting rod (43). After the pivot (41) drives the frame (42) to move downward, the limiting plate (421) presses against the upper edge of the connecting rod (43).

5. A clamping mechanism as described in claim 2, characterized in that: When the frame (11) moves downward, it can drive multiple connecting rods (43) to rotate synchronously and make the connection side of the connecting rod (43) and the frame (42) higher than the connection side of the connecting rod (43) and the frame (11), so as to drive multiple sets of clamping components (2) to switch from the second state to the first state.

6. A clamping mechanism as described in claim 2, characterized in that: The pivot (41) has a sliding part at one end facing the frame (42), and the frame (42) has a limiting part. The sliding part is slidably connected to the limiting part and is in clearance fit with the limiting part.

7. A clamping mechanism as described in claim 6, characterized in that: The sliding part includes two adjusting discs (411) disposed at the bottom end of the pivot (41), and the limiting part includes multiple limiting plates (422) disposed on the frame (42). The multiple limiting plates (422) are distributed around the pivot (41) and located between the two adjusting discs (411). The distance between the two adjusting discs (411) is greater than the thickness of the limiting plates (422).

8. A clamping mechanism as described in claim 1, characterized in that: The clamping component (2) includes: The hinge arm (21) is rotatably connected to the base frame (1) and is elastically hinged to the base frame (1) through the first elastic element (3); The connecting part (22) is fixed to the side of the hinge arm (21) facing the inside of the frame (11) and is hinged to the connecting rod (43); The engaging portion (23) extends downward from the hinge arm (21) and has an abutment section (231) vertically provided at its bottom end.

9. A clamping mechanism as described in claim 8, characterized in that: The abutment section (231) has locking serrations on the side facing the frame (11).

10. A clamping mechanism as described in claim 8, characterized in that: The hinge arm (21) is L-shaped so that the hinge point between the connecting rod (43) and the hinge arm (21), the hinge point between the hinge arm (21) and the base frame (1), and the point of action of the engaging part (23) form a lever relationship.

11. A clamping mechanism as described in claim 1, characterized in that: The base frame (1) is provided with multiple sets of support components (5). Each support component (5) includes a guide rod (51) connected to the base frame (1). The guide rod (51) extends vertically downward. A support pad (52) is provided at the bottom end of the guide rod (51). A second elastic element (53) is sleeved on the guide rod (51). The second elastic element (53) presses against the upper end of the support pad (52).

12. A clamping mechanism as described in claim 11, characterized in that: When the clamping component (2) moves from the first state past the dead point and switches to the second state, and when the clamping component (2) moves from the second state past the dead point and switches to the first state, the second elastic member (53) undergoes elastic deformation.

13. A smart terminal protection device, employing the clamping mechanism according to any one of claims 1-12, characterized in that: It also includes a protective shell (6), which is detachably connected to the base frame (1), and the protective shell (6) is provided with a relief cavity (61) for the hinge arm (21) to rotate.

Images