A switch cover structure

Abstract

The application discloses a switch cover structure, relates to the technical field of tank body structure opening and closing, and is used for realizing the locking and unlocking of a tank cover relative to a tank body. The switch cover structure comprises a self-locking shaft, a clamping jaw assembly and a driving end. The first end of the self-locking shaft is provided with a clamping part, and the second end of the self-locking shaft is used for connecting the tank cover. The clamping jaw assembly comprises a body and a telescopic assembly movably arranged in the body. The body is used for connecting the driving end to realize movement. The telescopic assembly can move with the body to be clamped in the clamping part or abut against the outer periphery of the second end of the self-locking shaft. The movement direction of the body is perpendicular to the telescopic direction of the telescopic assembly. When the telescopic assembly moves to be clamped in the clamping part, the body can drive the tank cover to move to be unlocked through the clamping part. When the telescopic assembly moves to abut against the outer periphery of the second end of the self-locking shaft, the body can be close to and press the tank cover to be locked. The switch cover structure can realize the automatic unlocking and locking of the tank cover relative to the tank body. For the tank body structure with a larger volume, the safety and reliability of the switch cover can be ensured.

Description

Technical Field

[0001] This invention relates to the field of tank structure opening and closing technology, and more specifically, to a switch cover structure. Background Technology

[0002] As a storage device, the tank structure facilitates the transfer of materials. In practice, manual opening and closing of the lid is required when receiving or transferring materials. For larger tanks, ladders may be needed, or multiple people may be required to operate the system. Opening and closing the lid carries certain risks.

[0003] In conclusion, ensuring the safety of the opening and closing cover of a large-volume tank structure is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a can cover structure that can automatically unlock and lock the can cover relative to the can body, and can ensure the safety and reliability of the can cover opening and closing for large can body structures.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A can lid opening and closing structure for locking and unlocking the can lid relative to the can body, comprising:

[0007] The self-locking shaft has a snap-fit ​​part at its first end and a second end for connecting to the can lid.

[0008] The gripper assembly includes a body and a telescopic component movably disposed within the body. The body is used to connect to a drive end to achieve movement. The telescopic component can move with the body to engage with the engaging portion or abut against the outer periphery of the second end of the self-locking shaft. The movement direction of the body is perpendicular to the telescopic direction of the telescopic component.

[0009] When the telescopic component moves to engage with the latching part, the main body can drive the can lid to move through the latching part to unlock it;

[0010] When the telescopic component moves to abut against the outer periphery of the second end of the self-locking shaft, the body can approach and press against the can lid to lock it.

[0011] Preferably, the snap-fit ​​portion includes a first inclined surface disposed away from the second end of the self-locking shaft and a snap-fit ​​groove disposed near the second end of the self-locking shaft, wherein the first inclined surface is connected to the groove wall of the snap-fit ​​groove;

[0012] The movement of the main body can cause the telescopic component to contact the first inclined surface and the snap-fit ​​groove to achieve retraction and extension respectively. When the telescopic component extends, it can contact the snap-fit ​​groove to achieve snap-fit.

[0013] Preferably, the snap-fit ​​portion includes a transition surface connecting the bottom surface of the first inclined surface and the snap-fit ​​groove, and the movement of the main body can drive the telescopic component to contact the first inclined surface, the transition surface, and the snap-fit ​​groove respectively.

[0014] Preferably, the telescopic component includes a slider, which is connected to the body via an elastic element, and the end of the slider away from the elastic element is provided with a second inclined surface, the second inclined surface having the same slope as the first inclined surface.

[0015] Preferably, the body has a clamping cavity, and at least two telescopic cavities are distributed circumferentially along the clamping cavity, and the telescopic cavities are connected to the clamping cavity. When the body moves, the slider in the telescopic cavity can contact the locking part located in the clamping cavity.

[0016] Preferably, the telescopic assembly further includes a push rod, the elastic element is sleeved on the push rod, and the two ends of the elastic element are respectively connected to the slider and the body, and the push rod can move relative to the body when the slider moves;

[0017] The body includes a fixing member and a gripper member. The gripper member includes a drive connection part, a through part, and an edge connection part connected in sequence. The drive connection part is used to connect to the drive end. The through part passes through the fixing member and is provided with the clamping cavity. The edge connection part is detachably connected to the fixing member and is provided with the telescopic cavity.

[0018] The fixing member has a cavity covering the edge connecting portion, and there is an elastic movement gap between the inner wall of the cavity and the end of the edge connecting portion away from the clamping cavity. One end of the elastic member is connected to the inner wall of the cavity, and the other end of the elastic member is connected to the slider.

[0019] The first end of the push rod is connected to the slider, and the second end of the push rod is provided to pass through the through hole on the inner wall of the fixing member. The outer diameter of the elastic member is larger than the outer diameter of the through hole.

[0020] A protective cover is provided on the outside of the fixing member, and there is a push rod movement gap between the inner wall of the protective cover and the outer periphery of the fixing member to limit the movement distance of the push rod when the slider moves.

[0021] The second end of the push rod is fixedly connected to a limiting member to prevent the push rod from moving into the cavity of the fixing member. A plurality of adjusting members are provided between the outer periphery of the limiting member and the fixing member. The plurality of adjusting members are sleeved on the push rod to adjust the moving distance of the slider and the push rod.

[0022] Preferably, a self-locking sleeve is slidably provided on the self-locking shaft. The self-locking sleeve can slide to fit against the locking groove or move away from the locking groove. When the self-locking sleeve moves away from the locking groove, it can form a locking gap, so that the telescopic component can extend into the locking gap and lock with the locking groove as the body moves. When the self-locking sleeve fits against the locking groove, it can generate a force that pushes the telescopic component to retract, so that the gripper component can disengage from the self-locking shaft.

[0023] Preferably, the self-locking bushing has an insertion part on the side near the snap-fit ​​groove, the insertion part being able to be inserted into the snap-fit ​​groove; the self-locking bushing has a third inclined surface on the side away from the snap-fit ​​groove, and acute angles are formed between the self-locking shaft axis and the third inclined surface, and between the third inclined surface and the first inclined surface;

[0024] When the can lid and the can body are locked, the main body can drive the telescopic component to move, so that the telescopic component can contact the transition surface of the third inclined surface and the self-locking shaft in sequence, so that the main body can disengage from the self-locking shaft.

[0025] Preferably, the self-locking bushing has a fourth inclined surface on the side near the snap-fit ​​groove, and the third inclined surface and the fourth inclined surface are connected by an arc segment. The outer edge of the arc segment and the outer edge of the snap-fit ​​part are both located in the clamping cavity of the body.

[0026] The fourth inclined surface is arranged parallel to the fifth inclined surface of the snap-fit ​​groove so that the self-locking bushing can be snapped into the snap-fit ​​groove.

[0027] Preferably, the self-locking bushing is provided with a plane connected to the fourth inclined surface on the side near the snap-fit ​​groove. The plane is perpendicular to the axis of the self-locking shaft. When the self-locking bushing is pushed by the telescopic component to snap into the snap-fit ​​groove, the plane can fit against the bottom wall of the snap-fit ​​groove.

[0028] The present invention provides a can lid opening and closing structure for locking and unlocking the can lid relative to the can body. Specifically, it includes a self-locking shaft and a gripper assembly. The first end of the self-locking shaft has a locking portion, and the second end of the self-locking shaft is connected to the can lid, so that the movement of the self-locking shaft can drive the movement of the can lid. The gripper assembly includes a body and a telescopic component movably disposed within the body. The body is connected to a drive end for movement. When the body moves with the drive end, the telescopic component can lock onto the locking portion or abut against the outer periphery of the second end of the self-locking shaft. The movement direction of the body is perpendicular to the telescopic direction of the telescopic component. When the telescopic component locks onto the locking portion, the movement of the body can drive the self-locking shaft and the can lid to move, thereby unlocking the can lid relative to the can body. When the telescopic component abuts against the outer periphery of the second end of the self-locking shaft, the body can move relative to the can lid, and the movement of the body presses the can lid tightly against the can body, thereby locking the can lid relative to the can body.

[0029] The beneficial effects of this invention are as follows: by setting up the gripper assembly and the self-locking shaft, the unlocking and locking operations of the can lid and the can body can be automated. For large-volume can body structures, the automation of opening and closing the lid can ensure the safety of the operation and ensure the efficiency and reliability of opening and closing the lid. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the switch cover structure provided by the present invention;

[0032] Figure 2 This is a schematic diagram illustrating the application of the switch cover structure provided by the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of the body provided by the present invention;

[0034] Figure 4 A schematic diagram showing a contact state between the telescopic component and the snap-fit ​​part provided by the present invention;

[0035] Figure 5 This is a schematic diagram illustrating another state of contact between the telescopic component and the snap-fit ​​part provided by the present invention.

[0036] Figure 6 This is a schematic diagram showing a contact state between the telescopic component and the self-locking bushing provided by the present invention.

[0037] Figure 7This is a schematic diagram of the telescopic component in the locked state of the can lid relative to the can body provided by the present invention.

[0038] Figure 8 This is a schematic diagram of the telescopic component in the unlocked state of the can lid relative to the can body, as provided by the present invention.

[0039] Figure 9 This is a schematic diagram of the gripper assembly provided by the present invention in the disengaged state relative to the self-locking shaft.

[0040] Figures 1-9 In the accompanying drawings, the reference numerals include:

[0041] 01-Main body; 02-Telescopic component;

[0042] 1-Gripper; 2-Protective cover; 3-Fixing component; 4-Slider; 5-Push rod; 6-Elastic component; 7-Self-locking shaft; 8-Self-locking bushing; 9-Can lid; 10-Can body; 11-Second can lid; 12-First can lid; 13-Sealing component; 14-Can opening; 15-Can opening pressure plate; 16-Limiting component; 17-Spring fixing component; 18-Elastic movement clearance; 19-Push rod movement clearance; 20-Grip cavity; 21-Telescopic cavity;

[0043] 41-Second inclined surface; 71-Snap-fit ​​part; 72-First inclined surface; 73-Transition surface; 74-Fifth inclined surface; 75-Snap-fit ​​groove; 81-Third inclined surface; 82-Circular arc segment; 83-Fourth inclined surface; 84-Plane;

[0044] 101-Drive connection part; 102-Through part; 103-Edge connection part. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0046] The core of this invention is to provide a can lid opening and closing structure for locking and unlocking the can lid and the can body. The locking and unlocking here is essentially the process of the can lid closing or opening the can body. The shape of the can body and can lid is not limited, and any can body and can lid structure that needs to be automatically opened and closed in the specific application scenario can be used.

[0047] Please refer to the following: Figure 2The can lid 9 can be divided into a first can lid 12 and a second can lid 11. The first can lid 12 is smaller and the second can lid 11 is larger and matches the can body 10. In application scenarios with a standard can body 10 and a larger second can lid 11, and considering the cost, the can lid 11 can be processed to have a can opening 14. The first can lid 12 can be connected by a can opening structure, so that the first can lid 12 can be closed or opened by the can opening pressure plate 15. This allows the can body 10 to be filled with materials through the can opening 14, or the can body 10 to be closed for material transfer.

[0048] The can lid 9 can also be a structure that is directly connected to the can body 10. It can be directly connected to the can lid through a switch cover structure, so that the can lid 9 can close or open the opening of the can body 10, and can also realize the operation of injecting materials into the can body 10 or realizing the transfer of materials in the can body 10.

[0049] In both of the above cases, it should be noted that please refer to [the relevant documentation / reference]. Figure 2 If the material requires sealing, a sealing element 13 is provided at the opening 14 of the second can lid 11 or the opening of the can body 10. The can lid can be pressed against the sealing element 13 by the opening and closing structure to achieve a sealing effect.

[0050] In both of the above cases, the can lid 9 can be provided with a conical surface to facilitate the unlocking and locking of the can lid 9 and the can body 10.

[0051] The opening and closing cover structure provided by this invention specifically includes a self-locking shaft 7 and a gripper assembly, which enables the unlocking and locking of the can cover 9 relative to the can body 10. Please refer to [reference needed]. Figure 1 , Figure 2 .

[0052] Please refer to the following: Figure 1 , Figure 2 , Figure 4 The first end of the self-locking shaft 7 is provided with a snap-fit ​​part 71, and the second end is used to connect to the lid 9 of the can-openable and closable can 10. Taking one specific embodiment as an example, the lid 9 can be... Figure 2 The smaller first can lid 12 is shown in the diagram. The specific connection method between the first can lid 12 and the self-locking shaft 7 is not limited, as long as a reliable fixing effect is ensured. For example, the first can lid 12 and the second end of the self-locking shaft 7 can be connected as one piece by welding, or the first can lid 12 and the second end of the self-locking shaft 7 can be detachably connected as one piece by fasteners.

[0053] It should be noted that, for larger tank structures, if the first tank cover 12 and the self-locking shaft 7 are connected by a detachable connection, the first tank cover 12 and the self-locking shaft 7 can be connected on the ground before the first tank cover 12 and the tank body 10 are connected, thus avoiding working at height and ensuring the safety of the operation.

[0054] Please refer to Figure 4 , Figure 5 The gripper assembly includes a body 01 and a telescopic component 02 movably disposed within the body 01. The body 01 is connected to a drive end for movement, and the movement of the body 01 naturally drives the telescopic component 02 within the body 01 to move synchronously. The drive end here is the component that can move the body 01, and can be a robotic arm or drive module capable of multi-directional movement. In practical use, the movement path of the drive end is determined, enabling the body 01 to move along a precise path to engage with or disengage from the engagement part 71. In this case, the movement path of the drive end, the position information of the can body 10 and the can lid 9, and the transfer information are all corresponding.

[0055] Specifically, the telescopic component 02 can move to engage with or abut against the outer periphery of the second end of the self-locking shaft 7. This movement of the telescopic component 02 includes movement along with the body 01, as well as extension / retraction resulting from contact with the engaging part 71. Specifically, the abutment refers to a situation where the self-locking shaft 7 and the telescopic component 02 remain in contact, and the self-locking shaft 7 does not slip relative to the gripper assembly due to the engagement part 71. When the telescopic component 02 and the second end of the self-locking shaft 7 are in contact, the can lid 9 can be locked relative to the can body 10. This contact provides a reference and standard for locking the can lid 9.

[0056] More specifically, the direction of movement of the main body 01 is perpendicular to the direction of extension and retraction of the telescopic component 02.

[0057] Taking one specific implementation as an example, if the main body 01 moves up and down, and the can lid 9 also moves up and down relative to the can body 10, then the telescopic component 02 extends in the left and right directions.

[0058] Taking another specific implementation as an example, if the main body 01 moves left and right, and the can lid 9 also moves left and right relative to the can body 10, then the telescopic component 02 extends in the up and down direction.

[0059] In one scenario, when the drive end can move the gripper assembly to move the telescopic component and engage with the locking part 71, the gripper assembly and the self-locking shaft 7 are connected in this engaged state. The self-locking shaft 7 is also connected to the can lid 9. Therefore, in this state, the gripper assembly is already connected to the can lid 9. When the can lid 9 is locked relative to the can body 10, to open it, the drive end must move the body 01 based on the connection between the gripper assembly and the can lid 9, thereby moving the can lid 9 and enabling the opening of the can lid 9. It should be noted that the can body 10 is significantly heavier than the can lid 9; therefore, when the body 01 moves the can lid 9 via the telescopic component 02, the can body 10 does not move.

[0060] In another specific case, when the telescopic component 02 is released from the latching part 71 and can reach the second end that abuts against the self-locking shaft 7, the movement of the body 01 can drive the telescopic component 02 to continue moving and bring the body 01 closer to the end face of the can lid 9 away from the can body 10. The movement of the body 01 generates a force to press the end face, which can reliably press the can lid 9 against the can body 10, thereby realizing the locking operation of the can lid 9 relative to the can body 10.

[0061] In this embodiment, the can lid 9 is unlocked and locked relative to the can body 10 by moving the gripper assembly. For larger can body structures, this enables automated lid opening and closing, eliminating the need for manual climbing, thus improving safety, efficiency, and reducing labor costs. Furthermore, automated lid opening and closing reduces the probability of material contamination, ensuring proper storage and reliable transfer of materials.

[0062] Based on the above embodiments, please refer to Figure 4 The locking portion 71 includes a first inclined surface 72 disposed away from the second end of the self-locking shaft 7 and a locking groove 75 disposed near the second end of the self-locking shaft 7. The first inclined surface 72 connects to the bottom surface of the locking groove 75. It should be noted that the first inclined surface 72 here is... Figure 4 As shown in the schematic cross-sectional view, the end structure of the self-locking shaft 7 with the snap-fit ​​portion 71 can be referenced. Figure 2 The meaning is as shown.

[0063] In one specific implementation, in the initial state, please refer to... Figure 4 The first inclined surface 72 of the snap-fit ​​part 71 abuts against the telescopic component 02. Under the pushing force of the first inclined surface 72, the telescopic component 02 can change from the extended state to the retracted state. In the retracted state, the telescopic component 02 can change from contacting the first inclined surface 72 to contacting the groove wall of the snap-fit ​​groove 75, so as to realize the snap-fit ​​state of the snap-fit ​​part 71 and the telescopic component 02.

[0064] In another specific implementation, in the initial state, please refer to... Figure 5 The groove wall of the snap-fit ​​groove 75 of the snap-fit ​​part 71 is in contact with the telescopic component 02. In this state, the snap-fit ​​part 71 has maintained a snap-fit ​​relationship with the telescopic component 02, and the telescopic component 02 remains in an extended state.

[0065] When the first inclined surface 72 is connected to the bottom surface of the snap-fit ​​groove 75, the plane or inclined surface of the snap-fit ​​groove 75 can be directly connected through the first inclined surface 72. In this case, the structure formed by the snap-fit ​​part 71 is a triangular structure.

[0066] Alternatively, the first inclined surface 72 can be connected to the bottom surface of the locking groove 75 through other planes. In this case, the structure formed by the locking part 71 is a quadrilateral structure.

[0067] The snap-fit ​​groove 75 formed in both of the above forms has a triangular structure. Of course, to ensure the snap-fit ​​reliability of the snap-fit ​​groove 75, the snap-fit ​​groove 75 can be set as follows: Figure 5 The trapezoidal groove shown.

[0068] Based on any of the above embodiments, please refer to Figure 6 The snap-fit ​​part 71 includes a transition surface 73 that connects the first inclined surface 72 and the bottom surface of the snap-fit ​​groove 75. The transition surface 73 may be provided with an arc to facilitate the smooth switching of the telescopic component 02 directly from the first inclined surface 72 and the bottom surface of the snap-fit ​​groove 75.

[0069] The transition surface 73 is the part used to switch the telescopic component 02 from the engaged state with the locking groove 75 to the disengaged state with the locking groove 75. Please refer to [reference needed]. Figure 5 , Figure 8 , Figure 9 In one specific scenario, the release from the engagement state of the locking groove 75 refers to the telescopic component 02 transitioning from contacting the locking groove 75 to contacting the first inclined surface 72. Subsequently, as the body 01 continues to move, the telescopic component 02 gradually moves away from the first inclined surface 72, allowing the gripper assembly as a whole to separate relative to the self-locking shaft 7. In another specific scenario, the release from the engagement state of the locking groove 75 is as follows (please refer to...). Figure 5 , Figure 6 When the telescopic component 02 is in contact with the locking groove 75, the telescopic component 02 is gradually moved away from the locking groove 75 by the movement of the body 01. In this case, the next operation is to press the can lid 9 onto the can body 10 by the body 01 to achieve the locking operation of the can lid 9.

[0070] In this embodiment, the movement of the main body 01 can cause the telescopic component 02 to contact the first inclined surface 72, the transition surface 73, and the locking groove 75 respectively. Specifically, the main body 01 can move to cause the telescopic component 02 to contact the first inclined surface 72, the transition surface 73, and the locking groove 75 in sequence, corresponding to the unlocking and locking operations of the can lid 9 relative to the can body 10; or the main body 01 can move to cause the telescopic component 02 to contact the locking groove 75, the transition surface 73, and the first inclined surface 72 in sequence, corresponding to the disengagement of the gripper assembly relative to the can lid 9, the can body 10, and the self-locking shaft 7.

[0071] Based on any of the above embodiments, please refer to Figure 4 , Figure 6 The telescopic component 02 includes a slider 4, which is connected to the body 01 via an elastic member 6. The end of the slider 4 away from the elastic member 6 is provided with a second inclined surface 41, which has the same inclination as the first inclined surface 72.

[0072] The slider 4 is specifically a component that can contact the self-locking shaft 7. The slider 4 is connected to the body 01 through the elastic element 6. When the slider 4 moves, it can compress or release the elastic element 6. In addition to the direction driven by the movement of the body 01, the slider 4 also has a movement direction that is consistent with the extension and retraction direction of the elastic element 6.

[0073] For example, please refer to one implementation method. Figure 4 , Figure 5 The main body 01 can move up and down with the drive end, and the slider 4 moves up and down with the main body 01 so that the second inclined surface 41 of the slider 4 contacts the first inclined surface 72. The elastic element 6 is compressed by the force of the two inclined surfaces, and the slider 4 moves away from the locking part 71. Then, as the main body 01 continues to move downwards, the slider 4 gradually contacts the transition surface 73. Afterwards, the slider 4 changes from contacting the transition surface 73 to moving towards the locking groove 75. The elastic force of the compressed elastic element 6 allows the slider 4 to enter the locking groove 75, thus achieving locking between the slider 4 and the locking groove 75. After this, the main body 01 moves upwards, which can unlock the can lid 9 relative to the can body 10. Please refer to [reference needed]. Figure 6 , Figure 7 As the body 01 continues to move downward, it can cause the slider 4 to abut against the outer periphery of the second end of the self-locking shaft 7 until the body 01 can press the end face of the can lid 9 to perform the locking operation of the can lid 9 relative to the can body 10.

[0074] In this embodiment, the first inclined surface 72 and the second inclined surface 41 have the same inclination. Specifically, this is based on the fact that when the body 01 moves, the reliable contact between the first inclined surface 72 and the second inclined surface 41 allows the inclined surface force to reliably operate on the slider 4 and the elastic element 6, ensuring the reliability of locking or unlocking the can lid 9 relative to the can body 10.

[0075] Based on any of the above embodiments, the body 01 is provided with a clamping cavity 20, and at least two telescopic cavities 21 are distributed circumferentially along the clamping cavity 20, and the telescopic cavities 21 are connected to the clamping cavity 20. When the body 01 moves, the slider 4 in the telescopic cavity 21 can contact the locking part 71 located in the clamping cavity 20.

[0076] Please refer to Figure 4 The clamping cavity 20 is the chamber that can be used to extend into the first end of the self-locking shaft 7, and the telescopic cavity 21 is at least the chamber used to place the slider 4.

[0077] The telescopic cavity 21 and the clamping cavity 20 are connected so that the slider 4 in the telescopic cavity 21 can contact or separate from the snap-fit ​​part 71 in the clamping cavity 20.

[0078] Please refer to Figure 3 Specifically, at least two telescopic cavities 21 are distributed circumferentially along the clamping cavity 20 so that at least two sliders 4 can be arranged circumferentially on the self-locking shaft 7. When the locking part 71 and the slider 4 are engaged to pull the can lid 9, it can have good reliability. Similarly, when the locking part 71 contacts and the slider 4 is engaged, and the slider 4 and the outer periphery of the second end of the self-locking shaft 7 are in contact, it can ensure that the body 01 reliably presses the can lid 9, ensuring the reliability and safety of the can lid 9 unlocking and locking operation relative to the can body 10.

[0079] In this embodiment, the snap-fit ​​portion 71 is located within the clamping cavity 20, corresponding to the process of the gripper assembly operating to unlock or lock the can lid 9 relative to the can body 10. As shown in the figure, there is a certain distance between the outer edge of the snap-fit ​​portion 71 and the inner wall of the clamping cavity 20 to provide space for the slider 4 to move and to facilitate the subsequent disengagement of the gripper assembly from the self-locking shaft 7. The specific distance can be flexibly set according to the actual situation.

[0080] Based on any of the above embodiments, please refer to Figure 1 The telescopic assembly 02 also includes a push rod 5, an elastic element 6 is sleeved on the push rod 5, and the two ends of the elastic element 6 are respectively connected to the slider 4 and the body 01. When the slider 4 moves, the push rod 5 can move relative to the body 01.

[0081] In one embodiment, the push rod 5 can be fixedly sleeved inside the elastic member 6 to provide a positioning effect when the elastic member 6 moves. In this case, one end of the elastic member 6 is fixed in the inner cavity of the body 01 and the other end of the elastic member 6 is connected to the end of the slider 4 away from the clamping cavity 20. When the slider 4 moves to compress the elastic member 6 or the elastic member 6 rebounds, the push rod 5 will move synchronously.

[0082] In another embodiment, one end of the push rod 5 is fixed to the slider 4, and the other end of the push rod 5 can extend out of the inner cavity of the body 01. In this case, the elastic element 6 can be sleeved on the outer periphery of the push rod 5 without being fixed. The push rod 5 extending out of the inner cavity of the body 01 provides a better positioning effect, allowing the elastic element 6 to move along the axial direction of the push rod 5 when the slider 4 moves, ensuring accurate and reliable movement. The axial direction here is illustrated with the push rod 5 as a cylindrical structure as an example. The shape of the push rod 5 can also be other and is not limited. Of course, it should be noted that although the push rod 5 extends out of the inner cavity of the body 01, the elastic element 6 abuts against the inner wall of the inner cavity and does not extend out of the inner cavity.

[0083] Based on any of the above embodiments, please refer to Figure 1 , Figure 3 The main body 01 includes a fixing member 3 and a gripper member 1. The gripper member 1 includes a drive connection part 101, a through part 102, and an edge connection part 103 connected in sequence. The drive connection part 101 is used to connect the drive end. The through part 102 passes through the fixing member 3 and is provided with a clamping cavity 20. The clamping cavity 20 here is the gripper assembly that can clamp the self-locking shaft 7 to realize the opening and closing of the can lid 9 relative to the can body 10.

[0084] The edge connection part 103 is provided with a telescopic cavity 21, which is a chamber for the telescopic assembly 02 to telescopically extend and retract. The edge connection part 103 and the fixing member 3 are detachably connected so as to facilitate the installation of the telescopic assembly 02 in the telescopic cavity 21, or to facilitate the disassembly of the telescopic assembly 02 relative to the telescopic cavity 21.

[0085] Based on any of the above embodiments, please refer to Figure 1 The fixing member 3 has a cavity covering the edge connecting portion 103. An elastic movement gap 18 exists between the inner wall of the cavity and the end of the edge connecting portion 103 away from the clamping cavity 20. One end of the elastic member 6 is connected to the inner wall of the cavity, and the other end is connected to the slider 4. In this case, the push rod 5 extends through the telescopic cavity 21 of the edge connecting portion 103. In one case, the push rod 5 extends directly through the fixing member 3, and the elastic member 6 moves within the elastic movement gap 18, but the end of the push rod 5 away from the clamping cavity 20 extends through the fixing member 3. In another case, the push rod 5 only extends through the telescopic cavity 21 of the edge connecting portion 103, and the elastic member 6 moves within the elastic movement gap 18, with the end of the push rod 5 away from the clamping cavity 20 able to move within the elastic movement gap 18. Regardless of the case, the elastic member 6 moves within the elastic movement gap 18, and the movement of the slider 4 ensures reliable movement of both the elastic member 6 and the push rod 5.

[0086] Based on any of the above embodiments, please refer to Figure 1The first end of the push rod 5 is connected to the slider 4, and the second end of the push rod 5 protrudes through a through hole on the inner wall of the fixing member 3. The outer diameter of the elastic member 6 is larger than the outer diameter of the through hole. In this case, the push rod 5 protrudes through the fixing member 3 and the telescopic cavity 21, while the elastic member 6 is confined within the elastic movement gap 18. The movement of the push rod 5 can be visualized, making it easy for the operator to understand the process of unlocking and locking the can lid 9 relative to the can body 10.

[0087] Based on any of the above embodiments, please refer to Figure 1 A protective cover 2 is provided on the outer side of the fixing member 3. There is a push rod movement gap 19 between the inner wall of the protective cover 2 and the outer periphery of the fixing member 3 to limit the movement distance of the push rod 5 when the slider 4 moves. The protective cover 2 can prevent the end of the push rod 5 away from the clamping cavity 20 from passing through the gripper assembly, thus playing a limiting role and ensuring the safety of operation. In essence, the function of the protective cover 2 is to ensure the reliability and safety of the gripper assembly operation, and to provide protection for the fixing member 3 and the edge connection part 103.

[0088] Based on any of the above embodiments, please refer to Figure 1 The second end of the push rod 5 is fixedly connected to a limiting member 16, which is used to prevent the push rod 5 from moving into the cavity of the fixing member 3, thereby playing a further limiting role and ensuring the reliability and safety of the push rod 5's movement stroke.

[0089] In a preferred embodiment, a plurality of adjusting members are provided between the outer periphery of the limiting member 16 and the fixing member 3. These adjusting members are fitted onto the push rod 5 and are used to adjust the moving distance of the slider 4 and the push rod 5. Specifically, by increasing or decreasing the number of adjusting members, the distance between at least two sliders 4 can be changed, thereby adjusting the travel of the slider 4 and improving the applicability of the entire switch cover structure. The adjusting members can be common shims, which are relatively inexpensive.

[0090] In one specific embodiment, the greater the distance between at least two sliders 4, the shorter the travel required when engaging with the can lid 9, that is, the shorter the travel of the telescopic component 02 when the can lid 9 is unlocked and locked relative to the can body 10.

[0091] In addition, to facilitate the connection of the elastic element 6, a spring fixing element 17 is provided on the outer periphery of the fixing element 3. The through hole on the spring fixing element 17 is only for the push rod 5 to pass through, while the through hole on the inner wall of the fixing element 3 can be set slightly larger, so that the spring can be reliably connected through the spring fixing element 17, and the push rod 5 can easily pass through the fixing element 3, which facilitates the smooth and reliable movement of the telescopic component 02.

[0092] Based on any of the above embodiments, please refer to Figure 8 , Figure 9The self-locking bushing 8 can slide to engage with or move away from the locking groove 75. When the self-locking bushing 8 moves away from the locking groove 75, it can form a locking gap so that the telescopic component 02 can extend into the locking gap and engage with the locking groove 75 as the body 01 moves. When the self-locking bushing 8 engages with the locking groove 75, it can generate a force that pushes the telescopic component 02 to retract so that the gripper assembly can disengage from the self-locking shaft 7.

[0093] In practical applications, after the can lid 9 and can body 10 are locked, there is a need to disengage the gripper assembly from the self-locking shaft 7. To address this, a self-locking sleeve 8 is slidably fitted onto the self-locking shaft 7. The sliding of the self-locking sleeve 8 relative to the self-locking shaft 7 is achieved in one direction by its own gravity and in the other by the movement of the main body 01; these two directions are opposite. Furthermore, the self-locking sleeve 8 is restrained when it engages with the locking groove 75 to prevent it from slipping off the self-locking shaft 7.

[0094] For example, please refer to one implementation method. Figure 4 , Figure 5 If the direction of movement of the can lid 9 relative to the can body 10 is vertical, then in the initial state, the self-locking bushing 8 is set away from the snap-fit ​​groove 75 under the action of gravity, and the gripper assembly can move from top to bottom so that the telescopic assembly 02 first contacts the first inclined surface 72 of the snap-fit ​​part 71, and then enters the gap between the self-locking bushing 8 and the snap-fit ​​groove 75 after passing through the transition surface 73. The upward movement of the gripper assembly can drive the telescopic assembly 02 and the snap-fit ​​groove 75 to snap together. At this time, the gripper assembly and the self-locking shaft 7 form a movable component, and the self-locking shaft 7 is connected to the can lid 9. On this basis, the upward movement of the gripper assembly can drive the can lid 9 to move, so that the can lid 9 separates from the can body 10, and the unlocking operation is realized.

[0095] Please refer to Figure 6 , Figure 7 If it is necessary to lock the can lid 9 relative to the can body 10, then, provided that the telescopic component 02 can enter the gap between the self-locking sleeve 8 and the snap-fit ​​groove 75, the gripper component continues to move downward. At this time, the telescopic component 02 is not snapped by the snap-fit ​​groove 75 and can continue to move downward so that the telescopic component 02 can pass through the self-locking sleeve 8. After that, the body 01 can move towards the can lid 9 connected to the second end of the self-locking shaft 7, and the pressing force generated by the movement of the body 01 on the can lid 9 reliably presses the can lid 9 onto the can body 10. It should be noted that the depth of the clamping cavity 20 of the body 01 needs to be greater than or equal to the distance between the first end of the self-locking shaft and the end face of the can lid 9 near the body 01, so that the body 01 is not blocked by the first end of the self-locking shaft when pressing the can lid 9; or the two ends of the clamping cavity 20 of the body 01 are connected. In this case, the depth of the clamping cavity 20 is not limited. When the body 01 presses the can lid 9, the self-locking shaft can move upward relative to the body 01, and even the locking groove 75 can pass through the clamping cavity 20.

[0096] Please refer to Figure 8 , Figure 9 After the can lid 9 and the can body 10 are locked, if it is necessary to disengage the gripper assembly relative to the self-locking shaft, the gripper assembly moves upward and contacts the gripper assembly through the self-locking shaft sleeve 8. The telescopic assembly 02 is pushed upward and contacts the locking groove 75. In this state, the telescopic assembly 02 is in a retracted state. After moving upward again, the telescopic assembly 02 remains in a retracted state and can pass through the transition surface 73 of the locking part 71 of the self-locking shaft. Then it moves upward to gradually move away from the first inclined surface 72 of the locking part 71. After this, the gripper assembly can disengage from the self-locking shaft.

[0097] In the above process, the self-locking bushing 8 allows the gripper assembly to separate relative to the self-locking shaft, so that the gripper assembly can be removed after the can lid 9 and the can body 10 are locked. This allows the gripper assembly to be used for subsequent opening and closing operations of the can body 10 structure, making it reusable, improving applicability and reducing usage costs.

[0098] Based on any of the above embodiments, please refer to Figure 7 The self-locking bushing 8 has an insertion part on the side near the snap-fit ​​groove 75, which can be inserted into the snap-fit ​​groove 75. The insertion here reliably fits the snap-fit ​​groove 75, allowing the self-locking bushing 8 to move from a position away from the snap-fit ​​groove 75. Through the movement of the body 01, the telescopic component 02 can push the self-locking bushing 8 to the position where the insertion part is inserted into the snap-fit ​​groove 75. At this position, the body 01 can continue to move away from the can lid 9, allowing the gripper assembly to disengage from the self-locking shaft 7.

[0099] A third inclined surface 81 is provided on the side of the self-locking bushing 8 away from the locking groove 75. An acute angle is formed between the axis of the self-locking shaft 7 and the third inclined surface 81, and between the third inclined surface 81 and the first inclined surface 72. The third inclined surface 81 here is also... Figure 7 For the part of the self-locking bushing 8 with the third inclined surface 81, which is shown in the schematic sectional view, please refer to [the original text]. Figure 2 As shown. (e.g.) Figure 7 As shown, the third inclined surface 81 is the part where the self-locking sleeve 8 can slide on the self-locking shaft 7 when the telescopic component 02 and the self-locking sleeve 8 are in contact. The sliding here refers to the sliding of the self-locking sleeve 8 towards the snap-fit ​​groove 75 so that the insertion part of the self-locking sleeve 8 can be inserted into the snap-fit ​​groove 75.

[0100] The acute angle formed between the third inclined surface 81 and the first inclined surface 72 is based on the setting of the first inclined surface 72, so that when the body 01 moves from top to bottom, the telescopic component 02 contacts the first inclined surface 72 to squeeze the telescopic component 02 and retract it. The setting based on the third inclined surface 81 is so that when the body 01 moves from bottom to top, the telescopic component 02 contacts the third inclined surface 81 to squeeze the telescopic component 02 and retract it.

[0101] When the can lid 9 and can body 10 are locked, the body 01 can drive the telescopic component 02 to move, allowing the telescopic component 02 to sequentially contact the third inclined surface 81 and the transition surface 73, thereby disengaging the body 01 from the self-locking shaft 7. Specifically, in the locked state of the can lid 9 and can body 10, the telescopic component 02 remains extended and positioned between the can lid 9 and the self-locking shaft sleeve 8, as shown below. Figure 7 As shown, in this state, if it is necessary to disengage the gripper assembly relative to the self-locking shaft 7, the gripper assembly moves upward, and the telescopic assembly 02 contacts the third inclined surface 81, causing the telescopic assembly 02 to change from an extended state to a retracted state, and pushing the self-locking sleeve 8 towards the snap-fit ​​groove 75 until the insertion part of the self-locking sleeve 8 and the snap-fit ​​groove 75 are engaged. Figure 9 If the gripper assembly continues to move upward, the telescopic assembly 02 can remain in the retracted state and contact the transition surface 73. After passing the transition surface 73, the telescopic assembly 02 can reach the position of the first inclined surface 72 and gradually change from the retracted state to the extended state as the gripper assembly moves upward. If the gripper assembly continues to move upward, the gripper assembly can be disengaged relative to the self-locking shaft 7.

[0102] In this embodiment, the separation of the gripper assembly from the self-locking shaft 7 is achieved through a relatively simple inclined plane fit relationship. The structure is simple and effective, the cost is low, and it can avoid manual operation, ensuring the safety and reliability of the entire opening and closing operation.

[0103] Based on any of the above embodiments, please refer to Figure 7 The self-locking bushing 8 has a fourth inclined surface 83 on the side near the locking groove 75, and the third inclined surface 81 and the fourth inclined surface 83 are connected by a circular arc segment 82. The circular arc segment 82 is the part that can cooperate with the transition segment. When the telescopic component 02 moves from contacting the third inclined surface 81 to contacting the transition segment, the circular arc segment 82 can, through the transition effect, allow the telescopic component 02 to move upward with the body 01 until it moves away from the first inclined surface 72, thereby realizing the separation of the self-locking shaft 7 and the gripper assembly.

[0104] The fourth inclined surface 83 and the third inclined surface 81 form an acute angle, and the fourth inclined surface 83 is parallel to the fifth inclined surface 74 of the locking groove 75, so that the self-locking sleeve 8 can be locked into the locking groove 75. It should be noted that the inclination directions of the third inclined surface 81, the fourth inclined surface 83 and the first inclined surface 72 are consistent, but the parallelism of the fourth inclined surface 83 and the fifth inclined surface 74 can ensure a reliable fit between the insertion part and the locking groove 75, thereby ensuring the smoothness and reliability of the process of the gripper assembly disengaging from the self-locking shaft 7. The first inclined surface 72 is preferably parallel to the fifth inclined surface 74, but it can also have a slight included angle, which can be set according to the actual situation.

[0105] For example, if the first inclined surface 72, the fifth inclined surface 74, and the fourth inclined surface 83 are arranged in parallel, the second inclined surface 41 of the slider 4 of the telescopic component 02 can also be arranged in parallel with the first inclined surface 72. In this case, the second inclined surface 41 can reliably fit with the first inclined surface 72, and the second inclined surface 41 can also reliably fit with the fourth inclined surface 83.

[0106] In one specific embodiment, when the second inclined surface 41 and the first inclined surface 72 are reliably engaged, the gripper assembly moves downward to change the telescopic component 02 from an extended state to a retracted state, and remains in the retracted state in contact with the transition surface 73. After that, the gripper assembly continues to move so that the telescopic component 02 can extend between the locking part 71 and the self-locking sleeve 8. At this time, the telescopic component 02 can switch from a retracted state to an extended state. After that, through the locking relationship between the locking groove 75 and the telescopic component 02, the gripper assembly moves upward to drive the self-locking shaft 7 and the can lid 9 to move, so that the can lid 9 can be unlocked relative to the can body 10.

[0107] In one specific embodiment, when the second inclined surface 41 can also reliably fit with the fourth inclined surface 83, the telescopic component 02 is positioned between the snap-fit ​​part 71 and the self-locking sleeve 8. The gripper assembly continues to move downwards, causing the telescopic component 02 to move downwards until the second inclined surface 41 can also reliably fit with the fourth inclined surface 83, thus changing the telescopic component 02 from an extended state to a retracted state. Continuing to move the gripper assembly downwards, the telescopic component 02 changes from fitting with the fourth inclined surface 83 to fitting with the arc segment 82. After this, the telescopic component 02 continues to move and abuts against the third inclined surface 81. In this state, the telescopic component 02 changes from a retracted state to an extended state. At this time, the telescopic component 02 has passed through the self-locking sleeve 8. The gripper assembly continues to move downwards, causing the body 01 to press against the can lid 9, thus locking the can lid 9 relative to the can body 10.

[0108] The outer edge of the arc segment 82 and the outer edge of the snap-fit ​​part 71 are both located in the clamping cavity 20 of the body 01, so that the telescopic component 02 can move relative to the outer periphery of the self-locking sleeve 8 and the self-locking shaft 7, and can separate the gripper component relative to the self-locking sleeve 8 and the self-locking shaft 7, and can also make the gripper component contact the self-locking sleeve 8 and the self-locking shaft 7 to perform the unlocking and locking operations of the tank body 10 and the tank cover 9.

[0109] Based on any of the above embodiments, please refer to Figure 7 , Figure 9 The self-locking sleeve 8 is also provided with a plane 84 connected to the fourth inclined surface 83 on the side near the snap-fit ​​groove 75. The plane 84 is perpendicular to the axis of the self-locking shaft 7. When the self-locking sleeve 8 is pushed by the telescopic component 02 to snap into the snap-fit ​​groove 75, the plane 84 can fit against the bottom wall of the snap-fit ​​groove 75. The bottom wall of the groove and the plane 84 fit reliably and tightly, ensuring a reliable fit of the snap-fit ​​groove 75 of the insertion part.

[0110] The self-locking bushing 8 is inserted into the side of the snap-fit ​​groove 75. The insertion part includes a fourth inclined surface 83 and a plane 84. The angle formed by the plane 84 and the fourth inclined surface 83 is an acute angle. The insertion part formed by the fourth inclined surface 83 and the plane 84 can ensure the reliable fit between the self-locking bushing 8 and the snap-fit ​​groove 75, ensuring that the telescopic assembly 02 can remain in a retracted state after contact with the self-locking bushing 8, and can smoothly move to the position of the first inclined surface 72 via the transition surface 73. After that, the telescopic assembly 02 moves away from the first inclined surface 72 so that the gripper assembly can reliably separate from the self-locking shaft 7.

[0111] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0112] The foregoing has provided a detailed description of a switch cover structure provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A can lid opening and closing structure for locking and unlocking a can lid (9) relative to a can body (10), characterized in that, include: The self-locking shaft (7) has a snap-fit ​​part (71) at its first end and a second end for connecting to the can lid (9). The gripper assembly includes a body (01) and a telescopic component (02) movably disposed within the body (01). The body (01) is used to connect to a drive end to achieve movement. The telescopic component (02) can move with the body (01) to engage with the engaging part (71) or abut against the outer periphery of the second end of the self-locking shaft (7). The moving direction of the body (01) is perpendicular to the telescopic direction of the telescopic component (02). When the telescopic component (02) moves to engage with the latching part (71), the main body (01) can drive the can lid (9) to move through the latching part (71) to unlock it; When the telescopic component (02) moves to abut against the outer periphery of the second end of the self-locking shaft (7), the body (01) can approach and press against the can lid (9) to lock it; The snap-fit ​​part (71) includes a first inclined surface (72) disposed away from the second end of the self-locking shaft (7) and a snap-fit ​​groove (75) disposed near the second end of the self-locking shaft (7), wherein the first inclined surface (72) is connected to the groove wall of the snap-fit ​​groove (75); The movement of the main body (01) can drive the telescopic component (02) to contact the first inclined surface (72) and the snap-fit ​​groove (75) to achieve retraction and extension respectively. When the telescopic component (02) extends, it can contact the snap-fit ​​groove (75) to achieve snap-fit. A self-locking sleeve (8) is slidably provided on the self-locking shaft (7). The self-locking sleeve (8) can slide to fit against the snap-fit ​​groove (75) or move away from the snap-fit ​​groove (75). When the self-locking sleeve (8) moves away from the snap-fit ​​groove (75), it can form a snap-fit ​​gap so that the telescopic component (02) can extend into the snap-fit ​​gap and snap-fit ​​with the snap-fit ​​groove (75) as the body (01) moves. When the self-locking sleeve (8) fits against the snap-fit ​​groove (75), it can generate a force that pushes the telescopic component (02) to retract so that the gripper component can disengage from the self-locking shaft (7).

2. The switch cover structure according to claim 1, characterized in that, The snap-fit ​​part (71) includes a transition surface (73) connecting the bottom surface of the first inclined surface (72) and the snap-fit ​​groove (75). The movement of the body (01) can drive the telescopic component (02) to contact the first inclined surface (72), the transition surface (73), and the snap-fit ​​groove (75) respectively.

3. The switch cover structure according to claim 2, characterized in that, The telescopic component (02) includes a slider (4), which is connected to the body (01) via an elastic element (6). The slider (4) has a second inclined surface (41) at one end away from the elastic element (6), and the second inclined surface (41) and the first inclined surface (72) have the same slope.

4. The switch cover structure according to claim 3, characterized in that, The body (01) is provided with a clamping cavity (20), and at least two telescopic cavities (21) are distributed around the clamping cavity (20) and the telescopic cavity (21) communicates with the clamping cavity (20). When the body (01) moves, the slider (4) in the telescopic cavity (21) can contact the snap-fit ​​part (71) located in the clamping cavity (20).

5. The switch cover structure according to claim 4, characterized in that, The telescopic assembly (02) also includes a push rod (5), the elastic element (6) is sleeved on the push rod (5), and the two ends of the elastic element (6) are respectively connected to the slider (4) and the body (01). When the slider (4) moves, the push rod (5) can move relative to the body (01). The main body (01) includes a fixing member (3) and a gripper member (1). The gripper member (1) includes a drive connection part (101), a through part (102), and an edge connection part (103) connected in sequence. The drive connection part (101) is used to connect to the drive end. The through part (102) passes through the fixing member (3) and is provided with the clamping cavity (20). The edge connection part (103) is detachably connected to the fixing member (3) and is provided with the telescopic cavity (21). The fixing member (3) has a cavity covering the edge connecting part (103), and there is an elastic movement gap (18) between the inner wall of the cavity and the end of the edge connecting part (103) away from the clamping cavity (20). One end of the elastic member (6) is connected to the inner wall of the cavity, and the other end of the elastic member (6) is connected to the slider (4). The first end of the push rod (5) is connected to the slider (4), and the second end of the push rod (5) is provided through the through hole on the inner wall of the fixing member (3). The outer diameter of the elastic member (6) is larger than the outer diameter of the through hole. A protective cover (2) is provided on the outside of the fixing member (3). There is a push rod movement gap (19) between the inner wall of the protective cover (2) and the outer periphery of the fixing member (3) to limit the movement distance of the push rod (5) when the slider (4) moves. The second end of the push rod (5) is fixedly connected to a limiting member (16) to prevent the push rod (5) from moving into the cavity of the fixing member (3). A number of adjusting members are provided between the limiting member (16) and the outer periphery of the fixing member (3). The number of adjusting members are sleeved on the push rod (5) to adjust the moving distance of the slider (4) and the push rod (5).

6. The switch cover structure according to any one of claims 2 to 5, characterized in that, The self-locking bushing (8) has an insertion part on the side near the snap-fit ​​groove (75), and the insertion part can be inserted into the snap-fit ​​groove (75); the self-locking bushing (8) has a third inclined surface (81) on the side away from the snap-fit ​​groove (75), and acute angles are formed between the axis of the self-locking shaft (7) and the third inclined surface (81), and between the third inclined surface (81) and the first inclined surface (72); When the can lid (9) and the can body (10) are locked, the body (01) can drive the telescopic component (02) to move, so that the telescopic component (02) can contact the transition surface (73) of the third inclined surface (81) and the self-locking shaft (7) in sequence, so that the body (01) can disengage from the self-locking shaft (7).

7. The switch cover structure according to claim 6, characterized in that, The self-locking bushing (8) has a fourth inclined surface (83) on the side near the snap-fit ​​groove (75). The third inclined surface (81) and the fourth inclined surface (83) are connected by an arc segment (82). The outer edge of the arc segment (82) and the outer edge of the snap-fit ​​part (71) are both located in the clamping cavity (20) of the body (01). The fourth inclined surface (83) is set parallel to the fifth inclined surface (74) of the snap-fit ​​groove (75) so that the self-locking bushing (8) can be snapped into the snap-fit ​​groove (75).

8. The switch cover structure according to claim 7, characterized in that, The self-locking bushing (8) is also provided with a plane (84) connected to the fourth inclined surface (83) on the side near the snap-fit ​​groove (75). The plane (84) is arranged perpendicular to the axis of the self-locking shaft (7). When the self-locking bushing (8) is pushed by the telescopic component (02) to snap into the snap-fit ​​groove (75), the plane (84) can fit against the bottom wall of the snap-fit ​​groove (75).

Images