Loadable motion lock

Abstract

The utility model relates to a kind of load-bearing motion locking device, comprising: telescopic control device, two symmetrical support frames and multiple locking structures, adaptive telescopic mechanism is installed on each support frame;Multiple locking structures are sequentially arranged between two adaptive telescopic mechanisms;Blocking plate and support plate are installed between the two support frames;Wherein, the blocking plate is rotatably connected with two support frames;The blocking plate and support plate are rotatably connected;The support plate is slidably connected with two adaptive telescopic mechanisms;The front end of the support plate is placed above multiple locking structures;The telescopic control device is fixedly connected with the lower surface of support plate;The utility model improves the synergism of device bearing force and locking, can stably meet the dual demand of load-carrying capacity and locking reliability under dynamic scene.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical locking and load-bearing coordination technology, and in particular relates to a load-bearing motion locking device. Background Technology

[0002] In scenarios such as vehicle positioning in parking equipment and blocking of heavy cargo on logistics conveyor lines, locking structures must simultaneously meet the requirements of "bearing dynamic loads" and "precise limiting". Their performance directly affects the safety of equipment operation. Therefore, the development of locking structures adapted to these scenarios is of great practical significance.

[0003] Currently, the mainstream solution in the industry is the "motor + anti-reverse nut" electrical locking scheme, which is widely used in small and medium-sized related equipment: the motor drives locking pins, locking blocks and other locking components to cooperate with the limit structure, and then the anti-reverse nut locks the motor output shaft or locking component to prevent it from moving in the opposite direction under load, thus achieving the locking function.

[0004] However, the existing solution is difficult to meet the needs of dynamic load-bearing scenarios in practical applications and has obvious technical defects: First, the locking method lacks adaptability. The limit position of the anti-reverse nut is fixed, and the locking force and support angle cannot be adjusted according to the magnitude of the impact load. When facing vehicles or goods of different weights, either the locking is too tight, causing stress concentration in the components, or the support is insufficient, causing displacement. Second, the components are easily damaged. The rigid drive of the motor is prone to collision wear when the locking parts are misaligned, and the impact load is directly transmitted to the motor output shaft and the anti-reverse nut. Long-term use can easily lead to problems such as shaft bending and thread stripping. Third, the coordination between locking and load bearing is poor. The locking action relies on the motor to drive alone, which has a response delay. Under instantaneous impact, there may be a gap where "load has been applied but locking is not in place", reducing the reliability of locking. These problems all restrict the effectiveness of the existing device in complex working conditions. Utility Model Content

[0005] To address the problems existing in the background art, this utility model provides a load-bearing motion locking device, characterized in that it includes: a telescopic control device, two symmetrical support frames, and multiple locking structures, each support frame being equipped with an adaptive telescopic mechanism; the multiple locking structures are sequentially arranged between two adaptive telescopic mechanisms; a blocking plate and a support plate are installed between the two support frames; wherein, the blocking plate is rotatably connected to the two support frames; the blocking plate and the support plate are rotatably connected; the support plate is slidably connected to the two adaptive telescopic mechanisms; the front end of the support plate is positioned above the multiple locking structures; and the telescopic control device is connected to the bottom of the support plate.

[0006] Preferably, a plurality of connecting blocks are provided between the support plate and the blocking plate; the support plate is fixedly connected to the plurality of connecting blocks; the rear ends of the plurality of connecting blocks are rotatably connected to the blocking plate; the front ends of the plurality of connecting blocks are connected to connecting rods, and the two ends of the connecting rods are slidably connected to two adaptive telescopic mechanisms respectively.

[0007] Preferably, the bottom of the baffle plate is provided with multiple connecting grooves; the rear ends of the multiple connecting blocks are placed in the multiple connecting grooves and are rotatably connected to the baffle plate.

[0008] Preferably, the adaptive telescopic mechanism includes: a column and multiple springs; the column is fixedly positioned at the front of the support frame; a slider is installed between the column and the support frame; a first sliding groove is provided on the rear side of the column; a second sliding groove is provided on the front side of the support frame; the front and rear ends of the slider are respectively placed in the first and second sliding grooves and are slidably connected with the first and second sliding grooves; the top ends of the multiple springs are fixedly connected to the lower side of the slider; a third sliding groove is provided inside the slider; the two ends of the connecting rod are respectively placed in the third sliding grooves of the two adaptive telescopic mechanisms and are slidably connected with the two adaptive telescopic mechanisms.

[0009] Preferably, a stop block is installed between the column and the support frame; the front and rear ends of the stop block are fixedly connected to the column and the support frame respectively, and the stop block is positioned directly above the slider.

[0010] Preferably, the telescopic control device includes: a mounting base, an electric cylinder, and a fixing component; the cylinder body of the electric cylinder is rotatably connected to the mounting base; the fixing component is fixedly disposed below the support plate; and the telescopic lead screw of the electric cylinder is connected to the fixing component.

[0011] Preferably, the locking structure includes: a locking plate; the upper end of the locking plate is provided with a plurality of locking step grooves; the locking step grooves are used to lock the front end of the support plate.

[0012] Preferably, the front end of the support plate is provided with multiple locking notches; the multiple locking notches correspond one-to-one with multiple locking structures; wherein, the locking notches are positioned above any locking step groove of the locking structure.

[0013] Preferably, a rotating shaft is fixedly connected to the rear end of the baffle plate, and the two ends of the rotating shaft are rotatably connected to two support frames respectively.

[0014] Preferably, the baffle plate has an array of leaf-shaped protrusions distributed on its surface.

[0015] This utility model has at least the following beneficial effects.

[0016] This invention can drive the support plate to move through a telescopic control device, indirectly adjusting the opening angle between the blocking plate and the support plate to flexibly adapt to impact loads of different intensities and meet diverse working conditions. When the blocking plate is subjected to impact, the sliding cooperation between the support plate and the adaptive telescopic mechanism, along with the rotational connection of the blocking plate, forms an impact buffer path, effectively dispersing and absorbing impact energy and reducing the risk of rigid damage to components. Furthermore, under impact, the adaptive telescopic mechanism can simultaneously retract and move the support plate downwards, allowing the front end of the support plate to directly enter the locking structure for locking, eliminating the need for additional independent drive and achieving synchronous triggering of load-bearing and locking actions, thus eliminating locking delay gaps. Simultaneously, the overall structure integrates the load-bearing function of the blocking plate, the force transmission and locking triggering function of the support plate, and the buffering and auxiliary sliding function of the adaptive telescopic mechanism, improving the synergy between load-bearing and locking, and stably meeting the dual requirements of load-bearing capacity and locking reliability in dynamic scenarios. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial structural schematic diagram of the present invention;

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Base plate; 11. Support frame; 12. Column; 121. First slide groove; 122. Second slide groove; 13. Locking structure; 131. Locking plate; 132. Locking step groove; 2. Blocking plate; 21. Connecting block; 22. Connecting rod; 23. Rotating shaft; 24. Connecting groove; 25. Leaf-shaped protrusion; 3. Support plate; 31. Locking notch; 4. Fixing component; 5. Adaptive telescopic mechanism; 51. Slider; 511. Third slide groove; 52. Stop block; 53. Spring; 6. Telescopic control device; 61. Base; 611. Base plate; 612. Vertical plate; 613. Connecting component; 62. Electric cylinder. Detailed Implementation

[0021] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0022] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0023] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0024] Please see Figure 1 This utility model provides a load-bearing motion locking device, comprising:

[0025] The system comprises a base plate 1, a telescopic control device 6, two symmetrical support frames 11, and multiple locking structures 13. The telescopic control device 6, the two symmetrical support frames 11, and the multiple locking structures 13 are mounted on the base plate 1. Each support frame 11 is equipped with an adaptive telescopic mechanism 5. The multiple locking structures 13 are sequentially arranged between two adaptive telescopic mechanisms 5. A blocking plate 2 and a support plate 3 are installed between the two support frames 11. The blocking plate 2 is rotatably connected to the two support frames 11. The blocking plate 2 and the support plate 3 are rotatably connected. The support plate 3 is slidably connected to the two adaptive telescopic mechanisms 5. The front end of the support plate 3 is positioned above the multiple locking structures 13. The telescopic control device 6 is connected to the bottom of the support plate 3.

[0026] In this embodiment, the base plate 1 includes: a pre-embedded foundation connector, a foundation adapter adjustment seat, and a foundation reinforcing rib base layer, etc. The base plate 1 serves as a basic component, fixed to the bottom steel frame of the parking equipment, providing installation support for the entire device; two symmetrical support frames 11 are vertically welded to both sides of the base plate 1, serving as rotational support carriers for the blocking plate 2; the adaptive telescopic mechanism 5 on each support frame 11 is directly assembled on the side facing the support frame 11 (in the attached...). Figure 1The front side (shown in the image) has a vertical sliding function to cooperate with the movement of the support plate 3; multiple locking structures 13 are distributed laterally between the two adaptive telescopic mechanisms 5 to cooperate with the front end of the support plate 3 to achieve locking; the blocking plate 2 is horizontally mounted between the two support frames 11, with both ends forming a rotatable connection with the support frame 11 for direct contact and blocking; the support plate 3 is located below the blocking plate 2, with one end forming a rotatable connection with the blocking plate 2, and the other end (front end) positioned directly above the multiple locking structures 13, while the two sides of the support plate 3 form a sliding connection with the two adaptive telescopic mechanisms 5; the telescopic control device 6, the main body of which is fixed on the base plate 1, and the telescopic end is connected to... The lower part of the support plate 3 (preferably the middle part of the lower front end of the support plate 3) is fixedly connected to drive the support plate 3 to move; the symmetry mentioned in this embodiment includes relative symmetry, that is, the structure does not have to be completely consistent. For example, the main feature of the left and right symmetrical support frame 11 is that support frames 11 are provided on the left and right sides, and the adaptive telescopic mechanism 5 on the support frame 11 is symmetrical from left to right. For example, the length, width, height and other dimensional parameters and shape parameters of the support frame 11 can be adjusted under the condition that it does not affect the normal operation of the device. For example, different reliefs or other structures are set on the top of the left and right support frames 11, which should also fall within the protection scope of this application.

[0027] Furthermore, a plurality of connecting blocks 21 are provided between the support plate 3 and the blocking plate 2; the support plate 3 is fixedly connected to the plurality of connecting blocks 21; the rear ends of the plurality of connecting blocks 21 are rotatably connected to the blocking plate 2; the front ends of the plurality of connecting blocks 21 are connected to connecting rods 22, and the two ends of the connecting rods 22 are slidably connected to two adaptive telescopic mechanisms 5 respectively.

[0028] In this embodiment, multiple connecting blocks 21 are provided between the support plate 3 and the blocking plate 2 to distribute and transfer the external load borne by the blocking plate 2 to the support plate 3. One end of the connecting block 21 is fixedly connected to the support plate 3, and the other end (rear end) is rotatably connected to the blocking plate 2, so that the support plate 3 and the blocking plate 2 are connected by multiple sets of connecting blocks 21 in a "fixed-rotation" combination. At the same time, the front ends of multiple connecting blocks 21 are connected to a connecting rod 22, which forcibly constrains the multiple connecting blocks 21 to move synchronously, ensuring that the sliding speed and displacement of both sides of the support plate 3 along the adaptive telescopic mechanism 5 are consistent. The two ends of the connecting rod 22 are respectively slidably connected to two adaptive telescopic mechanisms 5, thus constructing a linkage structure of "connecting block-connecting rod-adaptive telescopic mechanism".

[0029] Furthermore, a plurality of connecting grooves 24 are provided on the underside of the blocking plate 2; the rear ends of the plurality of connecting blocks 21 are respectively placed in the plurality of connecting grooves 24 and are rotatably connected to the blocking plate 2.

[0030] In this embodiment, the connecting block 21 adopts an upwardly bent strip structure, which is rotatably connected to the blocking plate 2 by means of a pin.

[0031] Further, the adaptive telescopic mechanism 5 includes: a column 12 and multiple springs 53; the column 12 is fixedly placed in front of the support frame 11; a slider 51 is installed between the column 12 and the support frame 11; a first sliding groove 121 is provided on the rear side of the column 12; a second sliding groove 122 is provided on the front side of the support frame 11; the front and rear ends of the slider 51 are respectively placed in the first sliding groove 121 and the second sliding groove 122, and are slidably connected with the first sliding groove 121 and the second sliding groove 122; the top ends of the multiple springs 53 are fixedly connected to the lower side of the slider 51; a third sliding groove 511 is provided inside the slider 51; the two ends of the connecting rod 22 are respectively placed in the third sliding grooves 511 of the two adaptive telescopic mechanisms 5, and are slidably connected with the two adaptive telescopic mechanisms 5.

[0032] In this embodiment, the column 12 is fixedly installed on the base plate 1, positioned directly in front of the support frame 11; together with the support frame 11, it forms the mounting and guiding frame for the slider 51; wherein, the first sliding groove 121 on the rear side of the column 12 and the second sliding groove 122 on the front side of the support frame 11 are correspondingly distributed, and together they form a bidirectional guiding structure for the slider 51, ensuring that the slider 51 can only slide along a preset vertical direction. At the same time, ball bearings are added to the first sliding groove 121 and the second sliding groove 122 to ensure smoother sliding; the front and rear ends of the slider 51 are respectively embedded in the first sliding groove 121 and the second sliding groove 122, and smooth movement along the guide trajectory is achieved through sliding cooperation with the two sliding grooves; at the same time, the third sliding groove 511 opened inside the slider 51 is used to form a sliding connection with the connecting rod 22—the two ends of the connecting rod 22 are embedded in the adaptive sides. After the third slide groove 511 of the telescopic mechanism, the movement of the slider 51 can synchronously drive the connecting rod 22 to slide, thereby linking the support plate 3, so that the movement of the support plate and the telescopic action of the slider are coordinated. In addition, the slider 51 also undertakes the functions of "bearing the spring force" and "transmitting the buffer force". Multiple springs 53 are set in a way that "the top is fixedly connected to the lower side of the slider 51", providing the slider 51 with an upward elastic support force. When the external load (such as the baffle plate being impacted) is transmitted to the slider 51, the spring 53 can absorb part of the impact force through compression deformation, avoiding component damage caused by rigid transmission, and realizing "adaptive buffering". When the external load disappears, the elastic rebound force of the spring 53 can push the slider 51 to reset upward along the slide groove, thereby driving the connecting rod 22 and the support plate 3 to return to the initial position, preparing for the next working cycle.

[0033] Furthermore, a stop block 52 is installed between the column 12 and the support frame 11; the front and rear ends of the stop block 52 are fixedly connected to the column 12 and the support frame 11 respectively, and the stop block 52 is positioned directly above the slider 51.

[0034] In this embodiment, the stop block 52 is horizontally installed between the column 12 and the support frame 11, and its front and rear ends are fixedly connected to the column 12 and the support frame 11 respectively (such as by welding or bolting), so that the stop block 52, the column, and the support frame together form a rigid frame. When the external load disappears, the rebound force of the spring 53 pushes the slider 51 to return to its original position along the first slide groove 121 and the second slide groove 122. The stop block 52 can prevent the slider 51 from going too far up, thus preventing the slider from exceeding the preset stroke of the slide groove due to excessive spring force or return inertia.

[0035] Please see Figure 2 Furthermore, the telescopic control device 6 includes: a mounting base 61, an electric cylinder 62, and a fixing member 4; the cylinder body of the electric cylinder 62 is rotatably connected to the mounting base 61; the fixing member 4 is fixedly disposed below the support plate 3; the telescopic lead screw of the electric cylinder 62 is connected to the fixing member 4; and the mounting base 61 is fixedly disposed on the base plate 1.

[0036] In this embodiment, the fixing member 4 can be a U-shaped metal connecting plate with the opening facing upwards, fixedly connected to the lower surface of the support plate 3, and fixedly connected by means of bolts, welding, integral connection, etc.; the fixing connections mentioned in this embodiment all include: bolts, welding, integral connection, etc.; they will not be specifically described later; the mounting base 61 is stably connected to the upper surface of the base plate 1 through a fixed connection, providing a fixed mounting carrier for the electric cylinder 62, avoiding displacement or shaking of the electric cylinder when outputting power or bearing reaction force, and ensuring the overall stability of the device under force; the rotational connection between the cylinder body of the electric cylinder 62 and the mounting base 61 allows the electric cylinder 62 to flexibly rotate around the mounting base 61 with the movement trajectory of the support plate when the support plate 3 is impacted or its angle is adjusted, avoiding stress concentration caused by rigid connection, preventing structural damage to the cylinder body or mounting base, and adapting to the power requirements of the support plate under different postures; the connection between the telescopic screw of the electric cylinder 62 and the fixing member 4 allows the extension or retraction of the telescopic screw to directly drive the fixing member 4 to move when the electric cylinder 62 is working, thereby driving the support plate 3 to complete preset lifting, angle adjustment and other actions.

[0037] Furthermore, the locking structure 13 includes: a locking plate 131; the upper end of the locking plate 131 is provided with a plurality of locking step grooves 132; the locking step grooves 132 are used to lock the front end of the support plate 3; the locking plate 131 is fixedly installed on the base plate 1.

[0038] In this embodiment, the locking plate 131 is fixedly mounted on the base plate 1 by means of bolt fastening or welding, serving as the basic load-bearing component of the locking structure. Multiple locking step grooves 132 are formed at the upper end of the locking plate 131 and distributed along the moving direction of the support plate. When the support plate 3 is subjected to external impact or driven downward by the adaptive telescopic mechanism 5, its front end can be embedded in the locking step groove 132, limiting the movement of the support plate 3 through the limiting effect of the groove wall. The design of multiple locking step grooves 132 can correspond to different downward displacements of the support plate 3, blocking the movement of the plate 2 and achieving motion locking. The design of multiple locking step grooves 132 can correspond to different downward displacements of the support plate 3. Depending on the difference in external load strength, the support plate 3 can be selectively engaged in locking step grooves 132 of different depths / heights to achieve "on-demand locking." This avoids excessive locking and mechanism jamming when the load is small, and also provides stronger locking support through deeper grooves when the load is large, improving the adaptability of the locking structure to different working conditions.

[0039] Furthermore, the front end of the support plate 3 is provided with a plurality of locking notches 31; the plurality of locking notches 31 correspond one-to-one with a plurality of locking structures 13; wherein, the locking notches 31 are positioned above any locking step groove 132 of the locking structure 13.

[0040] Furthermore, a rotating shaft 23 is fixedly connected to the rear end of the baffle plate 2, and the two ends of the rotating shaft 23 are respectively rotatably connected to two support frames 11.

[0041] Furthermore, the baffle plate 2 has an array of leaf-shaped protrusions 25 distributed on it.

[0042] In this embodiment, locking notches 31 are formed at the front end of the support plate 3, and their number is consistent with that of the locking structure 13 and they are distributed in a "one-to-one correspondence". The shape and size of their notches are adapted to the locking step grooves 132 of the locking structure 13. Under the control of the telescopic control device 6, each locking notch 31 can be precisely positioned directly above any locking step groove 132 of the corresponding locking structure 13, ensuring that the two can be smoothly connected when the support plate 3 moves down. The rotating shaft 23 forms a "fixed connection" (such as welding or keying) with the rear end of the blocking plate 2, ensuring that the two do not rotate relative to each other. The two ends of the rotating shaft 23 form a "rotatable connection" (such as embedding) with the two support frames 11 respectively. The pre-set shaft holes of the support frame (and the matching bearings) form the rotation fulcrum of the baffle plate 2; the leaf-shaped protrusions 25 are integrally formed or fixed to the upper surface of the baffle plate 2 in an "array distribution" manner, with uniform height and spacing, and are arranged in a regular pattern; when the baffle plate 2 comes into contact with the object being blocked (such as a vehicle platform or cargo pallet), the leaf-shaped protrusions 25 can embed into the surface of the object or increase the contact friction, preventing relative sliding between the object and the baffle plate 2 and avoiding "blocking failure"; at the same time, the array distribution design makes the friction force act evenly on the surface of the baffle plate 2, avoiding excessive local friction leading to protrusion wear or damage to the object surface, thus balancing practicality and durability.

[0043] The working principle of this utility model is explained as follows: The working process of the load-bearing motion locking device proposed in this utility model can be divided into three stages, as detailed below:

[0044] Initial state adjustment stage: The device uses the base plate 1 as the installation foundation. When it is not initially subjected to impact, the support plate 3, which is fixedly connected to it, is driven to move by the telescopic control device 6, which includes the electric cylinder 62. Since the support plate 3 is rotatably connected to the blocking plate 2 through the connecting block 21, and the rear end of the blocking plate 2 is rotatably connected to the left and right symmetrical support frame 11 through the rotating shaft 23, the movement of the support plate 3 can indirectly drive the blocking plate 2 to adjust the opening angle around the rotating shaft 23 of the support frame 11. For example, the angle is increased when dealing with large impacts and decreased when dealing with small impacts. At the same time, the adaptive telescopic mechanism 5 on each support frame 11 includes the column 12, the slider 51, and the spring 53. The spring 53 supports the slider 51 upwards. The slider 51 is connected to the front end of the connecting block 21 through the connecting rod 22, which forms a stable support for the support plate 3. Finally, the locking notch 31 at the front end of the support plate 3 is placed above the multiple locking structures 13, including the locking plate 131 and the locking step groove 132, to complete the working condition adaptation adjustment.

[0045] Impact bearing and synchronous locking stage: When an external impact, such as a vehicle collision or cargo pressure, acts on the baffle plate 2, the baffle plate 2 rotates around the pivot 23 of the support frame 11, and the impact force is transmitted to the support plate 3 through the connecting block 21; the two ends of the support plate 3 slide along the slider 51 of the adaptive telescopic mechanism 5, and at the same time the impact pressure compresses the spring 53, causing the slider 51 to move down along the first slide groove 121 on the rear side of the column 12 and the second slide groove 122 on the front side of the support frame 11; at the same time, since the telescopic control device 6 is in a rigid state at this time, it will generate a pulling force on the support plate; the slider 51 moves down and drives the support plate 3 to move down synchronously through the connecting rod 22 until the locking notch 31 at the front end of the support plate 3 precisely engages with the locking step groove 132 corresponding to the locking structure 13, completing the locking to fix the position of the device and realizing the synchronous action of "loading and locking".

[0046] Impact disappearance and reset stage: When the external impact disappears, the rebound force of the spring 53 in the adaptive telescopic mechanism 5 pushes the slider 51 upward to reset. The slider 51 drives the support plate 3 to move upward through the connecting rod 22; indirectly driving the blocking plate 2 to return to the initial state around the support frame 11 pivot 23, waiting for the next working cycle.

[0047] In summary, this utility model can drive the support plate to move through a telescopic control device, indirectly adjusting the opening angle between the blocking plate and the support plate to flexibly adapt to impact loads of different intensities and meet diverse working conditions. Furthermore, when the blocking plate is subjected to impact, the sliding cooperation between the support plate and the adaptive telescopic mechanism, along with the rotational connection of the blocking plate, forms an impact buffer path, effectively dispersing and absorbing impact energy and reducing the risk of rigid damage to components. Under impact, the adaptive telescopic mechanism can simultaneously retract and move the support plate downwards, allowing the front end of the support plate to directly enter the locking structure for locking, eliminating the need for additional independent drive and achieving synchronous triggering of load-bearing and locking actions, thus eliminating locking delay gaps. Simultaneously, the overall structure integrates the load-bearing function of the blocking plate, the force transmission and locking triggering function of the support plate, and the buffering and auxiliary sliding function of the adaptive telescopic mechanism, improving the synergy between load-bearing and locking, and stably meeting the dual requirements of load-bearing capacity and locking reliability in dynamic scenarios.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A load-bearing motion locking device, characterized in that, include: The device includes a telescopic control device (6), two symmetrical support frames (11), and multiple locking structures (13). Each support frame (11) is equipped with an adaptive telescopic mechanism (5). Multiple locking structures (13) are arranged sequentially between the two adaptive telescopic mechanisms (5). A blocking plate (2) and a support plate (3) are installed between the two support frames (11). The blocking plate (2) is rotatably connected to the two support frames (11). The blocking plate (2) and the support plate (3) are rotatably connected. The support plate (3) is slidably connected to the two adaptive telescopic mechanisms (5). The front end of the support plate (3) is positioned above the multiple locking structures (13). The telescopic control device (6) is connected to the bottom of the support plate (3).

2. The load-bearing motion locking device according to claim 1, characterized in that, Multiple connecting blocks (21) are provided between the support plate (3) and the blocking plate (2); the support plate (3) is fixedly connected to the multiple connecting blocks (21); the rear end of the multiple connecting blocks (21) is rotatably connected to the blocking plate (2); the front end of the multiple connecting blocks (21) is connected to a connecting rod (22), and the two ends of the connecting rod (22) are slidably connected to two adaptive telescopic mechanisms (5) respectively.

3. The load-bearing motion locking device according to claim 2, characterized in that, The bottom of the baffle plate (2) is provided with multiple connecting slots (24); the rear ends of multiple connecting blocks (21) are placed in the multiple connecting slots (24) and are rotatably connected to the baffle plate (2).

4. A load-bearing motion locking device according to claim 2, characterized in that, The adaptive telescopic mechanism (5) includes: a column (12) and multiple springs (53); the column (12) is fixedly placed in front of the support frame (11); a slider (51) is installed between the column (12) and the support frame (11); a first sliding groove (121) is provided on the rear side of the column (12); a second sliding groove (122) is provided on the front side of the support frame (11); the front and rear ends of the slider (51) are respectively placed in the first sliding groove (121) and the second sliding groove (122), and are slidably connected with the first sliding groove (121) and the second sliding groove (122); the top ends of the multiple springs (53) are fixedly connected to the lower side of the slider (51); a third sliding groove (511) is provided in the slider (51); the two ends of the connecting rod (22) are respectively placed in the third sliding groove (511) of the two adaptive telescopic mechanisms (5), and are slidably connected with the two adaptive telescopic mechanisms (5).

5. A load-bearing motion locking device according to claim 4, characterized in that, A stop block (52) is installed between the column (12) and the support frame (11); the front and rear ends of the stop block (52) are fixedly connected to the column (12) and the support frame (11) respectively, and the stop block (52) is placed directly above the slider (51).

6. A load-bearing motion locking device according to claim 1, characterized in that, The telescopic control device (6) includes: a mounting base (61), an electric cylinder (62), and a fixing member (4); the cylinder body of the electric cylinder (62) is rotatably connected to the mounting base (61); the fixing member (4) is fixedly installed under the support plate (3); the telescopic screw of the electric cylinder (62) is connected to the fixing member (4).

7. A load-bearing motion locking device according to claim 1, characterized in that, The locking structure (13) includes: a locking plate (131); the upper end of the locking plate (131) is provided with a plurality of locking step grooves (132); the locking step grooves (132) are used to lock the front end of the support plate (3).

8. A load-bearing motion locking device according to claim 7, characterized in that, The front end of the support plate (3) is provided with multiple locking slots (31); the multiple locking slots (31) correspond one-to-one with multiple locking structures (13); wherein, the locking slots (31) are placed above any locking step slot (132) of the locking structure (13).

9. A load-bearing motion locking device according to claim 1, characterized in that, The rear end of the baffle plate (2) is fixedly connected to a rotating shaft (23), and the two ends of the rotating shaft (23) are rotatably connected to two support frames (11) respectively.

10. A load-bearing motion locking device according to claim 1, characterized in that, The baffle plate (2) has leaf-shaped protrusions (25) arranged in an array on its surface.

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