High-load electric uncovering device

Abstract

The utility model relates to the field of mechanical cover opening and locking, in particular to a high-load electric cover opening device which comprises an electric driving assembly, an opening and closing assembly and a position locking assembly. The electric driving assembly is arranged on the outer wall of the cylinder; the opening and closing assembly comprises a support, a cross arm and a lifting lug, the support is arranged on the outer wall of the barrel, the lifting lug is arranged at the top of the cover body, the input end of the cross arm is rotationally connected with an output rod of the electric driving assembly, the output end of the cross arm is fixedly connected with the lifting lug, and the cross arm is rotationally connected with the support to rotate around the support; the position locking assembly comprises a fixing piece, an elastic guide piece, a rigid locking piece and an unlocking piece, the fixing piece is arranged on the outer wall of the cylinder body, one end of the rigid locking piece is rotationally connected with the fixing piece, the other end of the rigid locking piece is movably inserted into the cover body through the elastic guide piece, and the unlocking piece is used for releasing insertion matching of the rigid locking piece and the cover body. According to the structure, the power-off self-locking function can be achieved, the accuracy when the cover body and the barrel body are closed can be improved, and therefore the sealing performance between the cover body and the barrel body is improved.

Description

Technical Field

[0001] This application relates to the field of mechanical opening and locking, and in particular to a high-load electric opening device. Background Technology

[0002] In the field of mechanical equipment, container lid opening and closing devices have always been an important research direction. With the continuous expansion of industrial production scale and the increasing demands for automation, efficient, stable, and safe lid opening devices are crucial for ensuring the smooth operation of production processes. In the food industry, such lid opening devices are applied to various food processing production lines, ensuring the hygiene and safety of food storage and processing, and improving the efficiency and quality of food production. In the chemical industry, it ensures the sealing of various chemical raw materials and products during storage and transportation, preventing leakage and contamination, and ensuring the safety and stability of chemical production. In the pharmaceutical industry, precise and stable lid opening devices help ensure a sterile environment and drug quality during drug production. It plays a key role in multiple stages of product storage, processing, and transportation, greatly promoting the improvement of production efficiency and product quality assurance in related industries, and making significant contributions to the modernization and automation of industrial production. In the past, the common technical means to open and close container lids was to use cylinder-driven lid opening devices. These devices typically include components such as a cylinder drive assembly, support, cross arm, lifting lug, sealing ring, lid body, and cylinder. The cylinder drive assembly and support are both located on the outer wall of the cylinder. The cross arm is rotatably connected to both the support and the output end of the cylinder drive assembly. One end of the cross arm is fixedly connected to the lifting lug on the top of the cover. A sealing ring is installed between the cover and the cylinder. Its working principle is as follows: When the cover needs to be opened, the cylinder drive assembly is activated, and its output end extends. Because the cross arm is rotatably connected to both the support and the output end of the cylinder drive assembly, it rotates around its connection point with the support under the push of the cylinder drive assembly's output end. Since one end of the cross arm is fixedly connected to the lifting lug on the top of the cover, the rotation of the cross arm lifts the cover upwards, thus separating the cover from the cylinder and completing the opening action. When the cover needs to be closed, the output end of the cylinder drive assembly retracts, pulling the cross arm to rotate in the opposite direction around its connection point with the support, thereby moving the cover downwards until the cover and cylinder are closed. At this point, the sealing ring between the cover and the cylinder provides a seal, preventing leakage of the contents of the container. Existing cylinder-driven cover opening devices have significant drawbacks. On the one hand, since the cylinder drives the horizontal arm to rotate, thereby opening and closing the cover, the center of gravity of the cover is unstable and it is easy to shake during this process. This makes it difficult for the cover to be accurately aligned with the opening of the can to achieve a good sealing effect. Often, manual correction is required after the cover is closed to improve the sealing performance. This not only increases labor costs but also reduces production efficiency. On the other hand, after the cylinder is de-energized, the cover cannot be effectively locked to the cylinder to prevent accidental opening of the cover due to collision, which could allow foreign objects to easily enter the cylinder. Utility Model Content

[0003] To ensure that the electric cap opening device can lock the cap and cylinder even when the power is off, preventing the cap from being accidentally opened, and to improve the accuracy of the cap and cylinder when they are closed, avoiding misalignment and gaps, thereby improving the sealing between the cap and cylinder, this application provides a high-load electric cap opening device.

[0004] This application provides a high-load electric lid opening device, including an electric drive assembly, an opening and closing assembly, and a position locking assembly. The electric drive assembly is disposed on the outer wall of a cylindrical body. The opening and closing assembly includes a bracket, a cross arm, and a lifting lug. The bracket is disposed on the outer wall of the cylindrical body, and the lifting lug is disposed on the top of the lid. The input end of the cross arm is rotatably connected to the output rod of the electric drive assembly, and the output end of the cross arm is fixedly connected to the lifting lug. The cross arm is rotatably connected to the bracket to rotate around the bracket. The position locking assembly includes a fixing member, an elastic guide member, a rigid locking member, and an unlocking member. The fixing member is disposed on the outer wall of the cylindrical body. One end of the rigid locking member is rotatably connected to the fixing member, and the other end is movably inserted into the lid through the elastic guide member. The unlocking member is used to release the insertion and engagement of the rigid locking member with the lid. By adopting the above technical solution, the electric drive assembly, disposed on the outer wall of the cylindrical body, provides a power source for the device. When the output rod of the electric drive assembly moves, it can drive the cross arm to rotate around the bracket, thereby smoothly driving the lid to open and close. Meanwhile, one end of the rigid locking component of the position locking assembly is rotatably connected to the fixing component on the outer wall of the cylinder, and the other end is movably inserted into the cover body through the elastic guide component. During the closing process of the cover, the rigid locking component can play a guiding role, guiding the cover to accurately align with the cylinder opening, improving the stability of the opening and closing process, solving the problem that the cover is difficult to accurately align with the tank opening in the existing cylinder drive method, eliminating the need for manual alignment operation, reducing labor costs, and improving production efficiency.

[0005] When the cover needs to be opened or closed, the rigid locking member, being in a plug-in engagement with the cover, restricts the cover's movement. Therefore, an unlocking member is used to release the plug-in engagement between the rigid locking member and the cover, freeing the cover from the constraint of the rigid locking member and allowing for smooth opening or closing. This facilitates operation and improves the usability of the cover opening device. It also better adapts to the opening and closing needs under different working conditions, ensuring smooth production processes. Furthermore, in the event of a power outage, the plug-in engagement between the rigid locking member and the cover provides a self-locking function, preventing accidental opening due to collisions and avoiding the entry of foreign objects into the cylinder, further enhancing the practicality and reliability of the entire device. Preferably, the unlocking member includes a pressing block, a sleeve, and a limiting rod. The rigid locking member is provided with a pressing block, the sleeve is fitted onto the rigid locking member, and the sleeve has a clearance opening corresponding to the pressing block for the pressing block to pass through. The sleeve is slidably provided with a limiting rod, and the rigid locking member has a limiting hole corresponding to the limiting rod for the limiting rod to pass through. By adopting the above technical solution, the pressing block in the unlocking component is set on the rigid locking component, and the sleeve is sleeved outside the rigid locking component with a clearance opening for the pressing block to pass through, allowing the pressing block to move within the clearance opening range of the sleeve. Simultaneously, a limiting rod is slidably provided on the sleeve, and a corresponding limiting hole is provided on the rigid locking component. When it is necessary to release the insertion fit between the rigid locking component and the cover, the pressing block can be operated to move the rigid locking component relative to the sleeve, thereby allowing the limiting rod to slide to the limiting hole, thus restricting the positional change of the rigid locking component and ultimately releasing the insertion state between the rigid locking component and the cover. This achieves a convenient and quick unlocking operation. Preferably, the limiting rod is fitted with a spring structure. When the limiting rod slides along the outer wall of the rigid locking component to the limiting hole, the spring structure pushes the limiting rod into the limiting hole. By adopting the above technical solution, in a high-load electric cover opening device with a power-off self-locking function, the limiting rod is fitted with a spring structure. When the cover is unlocked, the rigid locking member gradually moves away from the cover. During this process, the limiting rod slides along the outer wall of the rigid locking member until it reaches a position corresponding to the limiting hole on the rigid locking member. Because the spring structure itself possesses elastic potential energy, when the limiting rod reaches the limiting hole, the spring structure releases this potential energy, pushing the limiting rod into the limiting hole. This effectively prevents accidental movement of the rigid locking member, thus disengaging the rigid locking member from the cover. This prevents the connection between the rigid locking member and the cover from loosening or detaching during device operation or under external force, thereby better ensuring the normal operation of the entire electric cover opening device and the safety and stability of the cover opening and closing process. Preferably, it also includes a plug-in block, which is fixedly mounted on the cover and located above the bracket. The plug-in block has a plug-in groove, and the elastic guide member is located at the bottom of the plug-in groove.By adopting the above technical solution, a plug-in block is fixedly installed on the cover above the support, and a plug-in groove is provided on the plug-in block. An elastic guide is placed at the bottom of the plug-in groove. When the cover closes, one end of the rigid locking member is rotatably connected to a fixing member fixed to the outer wall of the cylinder, while the other end moves towards the plug-in groove under the action of the elastic guide. The elastic guide provides cushioning and guidance, allowing the rigid locking member to be inserted into the plug-in groove more smoothly. During the insertion of the rigid locking member into the plug-in groove, the cushioning performance of the elastic guide prevents a hard collision between the rigid locking member and the plug-in groove, reducing wear on components and extending the service life of the device. Simultaneously, its guiding effect ensures that the rigid locking member accurately enters the plug-in groove, allowing the cover to be more precisely aligned with the tank opening, thereby improving the sealing performance when the cover and cylinder are closed. Preferably, the plug-in groove of the plug-in block has a trapezoidal guide portion at its opening to guide the rigid locking member into the plug-in groove. By adopting the above technical solution, since the insertion slot of the insertion block is provided with a trapezoidal guide, when the rigid locking member approaches the cover and is ready to be inserted into the insertion slot, the trapezoidal guide can decompose and guide the possible lateral offset force of the rigid locking member by means of its inclined slope structure. Compared with the case without the trapezoidal guide, the rigid locking member does not need to be precisely aligned with the slot during the insertion process. Even if there is a certain angle or positional deviation, it can automatically adjust its direction and slide into the insertion slot under the action of the trapezoidal guide, effectively avoiding the phenomenon of collision or jamming between the rigid locking member and the edge of the slot, improving the smoothness of the insertion of the rigid locking member, and thus significantly enhancing the convenience and accuracy of the position locking between the cover and the cylinder, which is conducive to improving the efficiency of the opening and closing operation of the cover during the production process. Preferably, it also includes an adjusting bolt, which is set between the cross arm and the upper cover for fixing the upper cover. By adopting the above technical solution, the adjusting bolt is set between the cross arm and the upper cover. When the upper cover is in the closed state, the adjusting bolt can be used to fix the upper cover, preventing the upper cover from shaking. Compared with the existing method of using a cylinder to drive the cross arm to open and close the cover, which is prone to instability and shaking, this adjusting bolt can effectively improve the stability of the upper cover and enhance the overall reliability of the device. Preferably, the adjusting bolt includes a stud and two nuts. The stud is set on the top of the upper cover and vertically passes through the cross arm. The two nuts are fitted onto the stud and abut against the top and bottom of the cross arm, respectively. By adopting the above technical solution, the adjusting bolt consists of a stud and two nuts. The stud is set on the top of the upper cover and vertically passes through the cross arm. The two nuts are fitted onto the stud and abut against the top and bottom of the cross arm, respectively. When it is necessary to adjust the relative position between the upper cover and the cross arm, the nuts can be rotated. Due to the threaded engagement between the nuts and the stud, the nuts move on the stud.When the upper nut rotates downwards towards the top of the crossarm, and the lower nut rotates upwards towards the bottom of the crossarm, the crossarm is tightly clamped between the two nuts, thus firmly fixing the upper cover to the crossarm and preventing relative displacement during use. This improves the stability and reliability of the connection between the upper cover and the crossarm, thereby ensuring the stability of the entire electric cover opening device. Simultaneously, this adjustment method is simple and convenient to operate, allowing for flexible adjustment of the upper cover position according to actual needs, improving the applicability and flexibility of the device. Preferably, the electric drive component is a folding-back electric cylinder. By adopting the above technical solution and selecting a folding-back electric cylinder as the electric drive component, the folding-back electric cylinder has a compact structure, allowing for better arrangement within the limited space of the outer wall of the cylinder, reducing the overall space occupied by the device. Its inherent folding-back characteristic allows the electric cylinder to more flexibly drive the crossarm to rotate, smoothly opening and closing the cover.

[0006] In summary, this application includes at least one of the following beneficial technical effects:

[0007] 1. One end of the rigid locking component of the position locking assembly is rotatably connected to the fixing component, and the other end is movably inserted into the lid body through the elastic guide component. When the lid is closed, the elastic guide component can play a buffering and guiding role, so that the rigid locking component is accurately inserted into the lid body, thereby making the lid body accurately aligned with the opening of the tank body, achieving a good sealing effect, eliminating the need for manual alignment, and improving production efficiency.

[0008] 2. By using the unlocking component and the plug-in block on the cover, the rigid locking component is released from the plug-in block on the cover, ensuring that it can be maintained even when the power is off. This gives the device a power-off self-locking function, and the structural design can withstand greater loads, making it suitable for large containers with high loads, thus ensuring the safety and stability of the production process.

[0009] 3. Improve the stability of the cover during opening or closing by adjusting the bolts to prevent shaking. Attached Figure Description

[0010] Figure 1 This is a cross-sectional view of a high-load electric lid-opening device according to this application;

[0011] Figure 2 yes Figure 1 A magnified view of point A in the middle.

[0012] Explanation of reference numerals in the attached drawings: 1. Electric drive assembly; 2. Opening and closing assembly; 3. Position locking assembly; 4. Insertion block; 5. Adjusting bolt; 21. Bracket; 22. Cross arm; 23. Lifting lug; 31. Fixing component; 32. Elastic guide component; 33. Rigid locking component; 34. Unlocking component; 341. Pressing block; 342. Sleeve; 343. Limiting rod; 3421. Clearance opening; 3422. Limiting hole; 3431. Spring structure; 41. Insertion groove; 42. Trapezoidal guide part. Detailed Implementation

[0013] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0014] This application provides a high-load electric lid-opening device, referring to... Figure 1 and Figure 2The device includes an electric drive assembly 1, an opening / closing assembly 2, a position locking assembly 3, a plug-in block 4, and an adjusting bolt 5. The electric drive assembly 1 is located on the outer wall of the cylinder and provides power to the entire device. The opening / closing assembly 2 is located between the cover and the cylinder and is driven by the electric drive assembly 1 to open and close the cover. The plug-in block 4 is fixedly mounted on the cover and located above the bracket 21, locking with the position locking assembly 3. The adjusting bolt 5 is used to fix the top cover and balance its center of gravity. Through the cooperation of these components, the problems of cover wobbling and inaccurate alignment in existing cylinder-driven cover opening devices are effectively avoided, improving the stability and sealing effect of the device. Specifically, the electric drive assembly 1 in this embodiment is a folding-back electric cylinder. A folding-back electric cylinder is a common electric drive device that converts electrical energy into mechanical energy to drive an output rod in linear motion. Specifically, the folding-back electric cylinder is mounted on the outer wall of the cylinder via a hinged seat, allowing the bottom of the folding-back electric cylinder to rotate. The output rod end of the folding-back electric cylinder has a rotating connecting seat for connecting the opening / closing assembly 2. Specifically, the opening / closing assembly 2 in this embodiment includes a bracket 21, a cross arm 22, and a lifting lug 23. The bracket 21 is disposed on the outer wall of the cylinder, and the lifting lug 23 is disposed on the top of the cover. The input end of the cross arm 22 is also provided with a corresponding rotating connecting seat. The two rotating connecting seats are connected by a pin, so that the output rod is rotatably connected to the input end of the cross arm 22. The output end of the cross arm 22 is fixedly connected to the lifting lug 23 by bolts. The cross arm 22 is rotatably connected to the bracket 21. When the electric cylinder is started, the extension and retraction movement of the output rod can drive the cross arm 22 to rotate around the bracket 21. The electric drive assembly 1 drives the cross arm 22 to rotate, thereby realizing the opening and closing of the cover. In addition to the reciprocating electric cylinder, the electric drive assembly 1 can also be a linear electric cylinder or a servo electric cylinder, as long as it can realize the function of driving the cross arm 22 to rotate. In particular, the bracket 21 of the opening / closing assembly 2 can be a bracket 21 made of metal material, which has good stability. One end of the bracket 21 is fixed to the outer wall of the cylinder by bolts or welding, and the other end is provided with a rotating connecting shaft. In this embodiment, the horizontal arm 22 is a triangular horizontal arm. One corner of the bottom of the horizontal arm 22 has a shaft hole adapted to the rotating connecting shaft of the bracket 21. The horizontal arm 22 is fitted onto the rotating connecting shaft of the bracket 21 through this shaft hole, enabling the horizontal arm 22 to rotate freely around the bracket 21. The other two corners of the horizontal arm 22 are a force input end and a force output end. The input end is rotatably connected to the end of the output rod of the reciprocating electric cylinder, and the output end is bolted to the lifting lug 23 on the top of the cover, ensuring stable movement of the cover when the horizontal arm 22 rotates. Specifically, the adjusting bolt 5 includes a stud and two nuts. The stud is welded to the top of the cover and vertically passes through the horizontal arm 22. The horizontal arm 22 has a through hole adapted to the stud, through which the stud passes. Both nuts are fitted with the stud and abut against the top and bottom of the horizontal arm 22, respectively.By tightening the nut, the cross arm 22 and the top cover can be fixed together. The stud can also be a lead screw or other type, and the nut can be of different specifications and types. Specifically, the position locking component 3 in this embodiment includes a fixing member 31, an elastic guide member 32, a rigid locking member 33, and an unlocking member 34. One end of the fixing member 31 is disposed on the outer wall of the cylinder, and the other end is rotatably connected to the unlocking member 34. The unlocking member 34 is disposed below the rigid locking member 33 and is used to release the insertion fit between the rigid locking member 33 and the cover. One end of the rigid locking member 33 is rotatably connected to the fixing member 31 through the unlocking member 34, and the other end is movably inserted into the cover through the elastic guide member 32, enabling the cover to be locked at a specific position, enhancing stability. Specifically, the insertion block 4 is fixed to the cover by welding and is located above the bracket 21. The insertion block 4 is provided with an insertion groove 41, and the elastic guide member 32 is disposed at the bottom of the insertion groove 41. The insertion block 4 is a square metal block. The insertion block 4 has an insertion groove 41, and the elastic guide 32 is installed at the bottom of the groove. When the rigid locking member 33 is inserted into the insertion groove 41, the elastic guide 32 acts as a buffer and guide because the end of the rigid locking member 33 is connected to the elastic guide 32, allowing the rigid locking member 33 to be smoothly inserted into the correct position. The groove 41 of the insertion block 4 has a trapezoidal guide 42, which is flared with its larger end facing the rigid locking member 33, guiding the rigid locking member 33 to be inserted into the insertion groove 41 more smoothly. Alternatively, the insertion block 4 can also be circular or other shapes. Specifically, the fixing member 31 of the position locking assembly 3 can be a metal plate, which is fixed to the outer wall of the cylinder by bolts, providing support and a base for the rigid locking member 33 to rotate. The fixing member 31 has a rotating pin hole, and the rigid locking member 33 is a metal rod, the other end of which can be inserted into the cover to lock. The elastic guide 32 is a spring, which acts as a buffer and guide when the rigid locking member 33 is inserted into the cover. When the cover descends and approaches the cylinder, the rigid locking member 33, under the action of the elastic guide member 32, can smoothly insert into the corresponding position of the cover, thereby locking the cover. Specifically, the unlocking member 34 includes a pressing block 341, a sleeve 342, and a limiting rod 343. The rigid locking member 33 is provided with the pressing block 341, and the sleeve 342 is sleeved on the rigid locking member 33. The sleeve 342 is provided with an clearance opening 3421 for the pressing block 341 to pass through. The sleeve 342 is provided with a limiting rod 343, and the rigid locking member 33 is provided with a limiting hole 3422 for the limiting rod 343 to pass through. The bottom of the sleeve 342 is provided with a rotating pin hole. The sleeve 342 and the fixing member 31 are rotatably connected by a pin passing through the pin hole. The limiting rod 343 is fitted with a spring structure 3431. The pressing block 341 is generally a circular metal block, which is fixed to the rigid locking member 33 by welding.The sleeve 342 is a cylindrical metal part that fits onto the rigid locking member 33 and can slide along the rigid locking member 33. The clearance opening 3421 on the sleeve 342 can be a rectangular hole, allowing the pressing block 341 to pass through. The limiting rod 343 is a cylindrical rod that passes through the side wall of the sleeve 342 and abuts against the outer wall of the rigid locking member 33. When unlocking is required, pressing the pressing block 341 causes the rigid locking member 33 to move downward, allowing the end of the limiting rod 343 to slide along the outer wall of the rigid locking member 33 to the limiting hole 3422. The spring structure 3431 pushes the limiting rod 343 into the limiting hole 3422, thereby releasing the lock between the rigid locking member 33 and the cover. Specifically, the spring structure 3431 includes a compression spring and a retaining part. The compression spring is sleeved on the limiting rod 343. The retaining part is connected to one end of the limiting rod 343 and is located outside the sleeve 342. The compression spring is disposed between the retaining part and the sleeve 342, with one end abutting against the outer wall of the sleeve 342 and the other end connected to the retaining part. When the limiting rod 343 slides to the position of the limiting hole 3422, the elastic force of the compression spring will push the limiting rod 343 into the limiting hole 3422, thereby positioning the rigid locking member 33. This spring structure 3431 ensures that the limiting rod 343 is accurately inserted into the limiting hole 3422. When locking is not required, the user can pull out the limiting rod 343, allowing it to overcome the spring force and slide out of the limiting hole 3422 to abut against the outer wall of the rigid locking member 33. Due to the action of the elastic guide member 32, the rigid locking member 33 moves upward until it is inserted into the insertion block 4, thus locking the cover and the cylinder. The spring structure 3431 can also use other types of springs, such as disc springs. The implementation principle of this high-load electric lid opening device is as follows: When the lid needs to be opened, the electric drive assembly 1 starts, the output rod extends, and drives the horizontal arm 22 to rotate around the bracket 21, thereby lifting the lid upward. At this time, if a power outage occurs, due to the presence of the position locking assembly 3, the rigid locking member 33 remains in the insertion state with the lid under the action of the elastic guide member 32, achieving power-off self-locking and preventing the lid from accidentally falling. When the cover needs to be closed, the output rod of the electric drive assembly 1 retracts, causing the horizontal arm 22 to rotate in the opposite direction, moving the cover downwards. The rigid locking member 33, guided by the elastic guide member 32 and the trapezoidal guide part 42, inserts into the insertion slot 41 of the cover, completing the closing and locking of the cover. When it is necessary to open the cover and release the position lock, the operator presses the pressing block 341, causing the limiting rod 343 to insert into the limiting hole 3422 under the action of the spring structure 3431, thereby releasing the insertion engagement between the rigid locking member 33 and the cover, facilitating the opening of the cover. The adjusting bolt 5 conveniently fixes and adjusts the connection between the horizontal arm 22 and the upper cover; the sliding installation design increases the flexibility of device installation and debugging.In this way, the position locking component 3 can lock the cover during normal operation, and can be easily unlocked when the cover needs to be opened, which improves the flexibility and stability of the device and solves the problems of traditional cylinder-driven cover opening devices.

[0015] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-load electric lid-opening device, characterized in that, It includes an electric drive assembly (1), an opening and closing assembly (2), and a position locking assembly (3); The electric drive assembly (1) is disposed on the outer wall of the cylinder; The opening and closing assembly (2) includes: a bracket (21), a cross arm (22), and a lifting lug (23). The bracket (21) is disposed on the outer wall of the cylinder, and the lifting lug (23) is disposed on the top of the cover. The input end of the cross arm (22) is rotatably connected to the output rod of the electric drive assembly (1), and the output end of the cross arm (22) is fixedly connected to the lifting lug (23). The cross arm (22) is rotatably connected to the bracket (21) to rotate around the bracket (21). The position locking component (3) includes: a fixing member (31), an elastic guide member (32), a rigid locking member (33), and an unlocking member (34). The fixing member (31) is disposed on the outer wall of the cylinder. One end of the rigid locking member (33) is rotatably connected to the fixing member (31), and the other end is movably inserted into the cover body through the elastic guide member (32). The unlocking member (34) is used to release the insertion and engagement between the rigid locking member (33) and the cover body.

2. The high-load electric lid opening device according to claim 1, characterized in that, The unlocking component (34) includes a pressing block (341), a sleeve (342), and a limiting rod (343). The rigid locking component (33) is provided with a pressing block (341). The sleeve (342) is sleeved on the rigid locking component (33). The sleeve (342) is provided with an clearance opening (3421) for the pressing block (341) to pass through. The sleeve (342) is slidably provided with a limiting rod (343). The rigid locking component (33) is provided with a limiting hole (3422) for the limiting rod (343) to pass through.

3. The high-load electric lid opening device according to claim 2, characterized in that, The limiting rod (343) is fitted with a spring structure (3431). When the limiting rod (343) slides along the outer wall of the rigid locking member (33) to the limiting hole (3422), the spring structure (3431) pushes the limiting rod (343) to insert into the limiting hole (3422).

4. The high-load electric lid opening device according to claim 1, characterized in that, It also includes a plug-in block (4), which is fixedly installed on the cover and located above the bracket (21). The plug-in block (4) is provided with a plug-in groove (41), and the elastic guide (32) is provided at the bottom of the plug-in groove (41).

5. A high-load electric lid opening device according to claim 4, characterized in that, The insertion slot (41) of the insertion block (4) is provided with a trapezoidal guide (42) to guide the rigid locking member (33) to be inserted into the insertion slot (41).

6. The high-load electric lid opening device according to claim 1, characterized in that, It also includes an adjusting bolt (5), which is disposed between the cross arm (22) and the upper cover for fixing the upper cover.

7. A high-load electric lid-opening device according to claim 6, characterized in that, The adjusting bolt (5) includes a stud and two nuts. The stud is located on the top of the upper cover and passes vertically through the cross arm (22). The two nuts are fitted onto the stud and abut against the top and bottom of the cross arm (22) respectively.

8. A high-load electric lid opening device according to claim 1, characterized in that, The electric drive assembly (1) is a reversible electric cylinder.

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