Switch cover structure

Abstract

The invention discloses a cover opening and closing structure, which relates to the technical field of opening and closing of tank body structures, is used for realizing locking and unlocking of a tank cover relative to a tank body, and comprises a self-locking shaft, 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 being connected with the tank cover; the clamping jaw assembly comprises a body and a telescopic assembly movably arranged in the body, the body is used for being connected with the driving end to achieve movement, the telescopic assembly can move along with the body to be clamped to the clamping part or abut against the periphery of the second end of the self-locking shaft, and the moving direction of the body is perpendicular to the telescopic direction of the telescopic assembly; when the telescopic assembly moves to be clamped with the clamping part, the body can drive the tank cover to move through the clamping part so as to unlock; when the telescopic assembly moves to abut against the periphery of the second end of the self-locking shaft, the body can be close to and tightly press the can cover for locking. According to the cover opening and closing structure, automatic unlocking and locking of the tank cover relative to the tank body can be achieved, and the safety and reliability of the cover opening and closing can be guaranteed for a tank body structure with the large size.

Description

Technical Field

[0001] The present invention relates to the technical field of opening and closing of tank structures, and more specifically, to a switch cover structure. Background Art

[0002] As a device for storing materials, the tank structure can transfer materials by transporting the tank structure. During actual use, manual operations of opening and closing the cover are required when collecting or transporting materials. In the case of a relatively large tank volume, ladders may be needed or multiple people may be required to operate, and there are certain risks in the cover opening and closing operations.

[0003] In summary, how to ensure the safety of opening and closing the cover of a relatively large tank structure is an urgent problem to be solved by those skilled in the art at present. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a switch cover structure that can achieve automatic unlocking and locking of the tank cover relative to the tank body, and for a relatively large tank structure, it can ensure the safety and reliability of opening and closing the cover.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] A switch cover structure for realizing the locking and unlocking of the tank cover relative to the tank body, comprising:

[0007] A self-locking shaft, a clamping portion is provided at the first end of the self-locking shaft, and the second end of the self-locking shaft is used to connect the tank cover;

[0008] A clamping jaw assembly, including a body and a telescopic assembly movably disposed within the body, the body is used to connect to a driving end to achieve movement, the telescopic assembly can move with the body to be clamped to the clamping portion or abut against the outer periphery of the second end of the self-locking shaft, and the moving direction of the body is perpendicular to the telescopic direction of the telescopic assembly;

[0009] When the telescopic assembly moves to be clamped to the clamping portion, the body can drive the tank cover to move through the clamping portion to unlock;

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

[0011] Preferably, the clamping portion includes a first inclined surface disposed away from the second end of the self-locking shaft, a clamping groove disposed close to the second end of the self-locking shaft, and the first inclined surface connects the groove wall of the clamping groove;

[0012] The movement of the body can drive the telescopic component to contact the first inclined surface and the clamping groove to correspondingly realize retraction and extension, and when the telescopic component extends, it can contact the clamping groove to realize clamping.

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

[0014] Preferably, the telescopic component includes a slider, the slider is connected to the body through an elastic member, and a second inclined surface is provided at one end of the slider away from the elastic member, and the second inclined surface has the same slope as the first inclined surface.

[0015] Preferably, the body is provided with a clamping cavity, at least two telescopic cavities are distributed along the circumferential direction of the clamping cavity, and the telescopic cavities communicate with the clamping cavity. When the body moves, the slider in the telescopic cavity can contact the clamping portion located in the clamping cavity.

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

[0017] The body includes a fixing member and a clamping jaw member, the clamping jaw member includes a driving connection portion, a penetrating portion, and an edge connection portion connected in sequence, the driving connection portion is used to connect the driving end, the penetrating portion passes through the fixing member and is provided with the clamping cavity, and the edge connection portion is detachably connected to the fixing member and is provided with the telescopic cavity;

[0018] The fixing member has a cavity covering the edge connection portion, and there is an elastic movement gap between the inner wall of the cavity and the end of the edge connection 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, the second end of the push rod passes through a through hole on the inner wall of the fixing member, and the outer diameter of the elastic member is greater than the outer diameter of the through hole;

[0020] A protective cover is arranged on the outer side 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 moving distance of the push rod driven by the slider when the slider moves;

[0021] The second end of the push rod is fixedly connected with a limiting member for blocking the push rod from moving into the cavity of the fixing member. A plurality of adjusting members are arranged between the limiting member and the outer periphery of the fixing member. The plurality of adjusting members are sleeved on the push rod for adjusting the moving distances of the slider and the push rod.

[0022] Preferably, a self-locking shaft sleeve is slidably arranged on the self-locking shaft. The self-locking shaft sleeve can slide to fit with or away from the clamping groove. When the self-locking shaft sleeve is away from the clamping groove, a clamping gap can be formed so that the telescopic assembly can extend into the clamping gap along with the movement of the body and be clamped with the clamping groove; when the self-locking shaft sleeve fits with the clamping groove, a force for pushing the telescopic assembly to retract can be formed so that the jaw assembly can be disengaged from the self-locking shaft.

[0023] Preferably, an insertion portion is arranged on one side of the self-locking shaft sleeve close to the clamping groove. The insertion portion can be inserted into the clamping groove; a third inclined surface is arranged on one side of the self-locking shaft sleeve away from the clamping groove. Acute angles are formed between the axis of the self-locking shaft 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 body can drive the telescopic assembly to move so that the telescopic assembly can sequentially contact the third inclined surface and the transition surface of the self-locking shaft, so that the body can be disengaged from the self-locking shaft.

[0025] Preferably, a fourth inclined surface is arranged on one side of the self-locking shaft sleeve close to the clamping groove. The third inclined surface and the fourth inclined surface are connected by an arc section in a transitional manner. The outer edges of the arc section and the clamping portion 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 clamping groove so that the self-locking shaft sleeve can be clamped in the clamping groove.

[0027] Preferably, a plane connected to the fourth inclined surface is further arranged on one side of the self-locking shaft sleeve close to the clamping groove. The plane is perpendicular to the axis of the self-locking shaft. When the self-locking shaft sleeve is pushed by the telescopic assembly to be clamped in the clamping groove, the plane can be attached to the bottom wall of the clamping groove.

[0028] The switch cover structure provided by the present invention is used to achieve the locking and unlocking of the can cover relative to the can body. Specifically, it includes a self-locking shaft and a jaw assembly. A clamping portion is provided at the first end of the self-locking shaft, and the second end of the self-locking shaft is connected to the can cover, so that the movement of the can cover can be driven by the movement of the self-locking shaft. The jaw assembly includes a body and a telescopic assembly movably provided in the body. The body is connected to the driving end to achieve movement. When the body moves with the driving end, the telescopic assembly can be clamped to the clamping portion or abutted against the outer periphery of the second end of the self-locking shaft. The moving direction of the body is perpendicular to the telescopic direction of the telescopic assembly. When the telescopic assembly is clamped to the clamping portion, the movement of the body can drive the self-locking shaft and the can cover to move, so as to perform the unlocking operation of the can cover relative to the can body. When the telescopic assembly abuts against the outer periphery of the second end of the self-locking shaft, at this time, the body can move relative to the can cover, and the can cover is pressed against the can body through the movement of the body, realizing the locking operation of the can cover relative to the can body.

[0029] The beneficial effects of the present invention are as follows: Through the setting of the jaw assembly and the self-locking shaft, the unlocking and locking operations of the can cover and the can body can be automated. For the can body structure with a large volume, the automation of the switch cover can ensure the safety of the operation and guarantee the efficiency and reliability of the switch cover. Brief Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

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

[0032] Figure 2 It is an application schematic diagram of the switch cover structure provided by the present invention;

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

[0034] Figure 4 It is a schematic diagram of a state where the telescopic assembly contacts the clamping portion provided by the present invention;

[0035] Figure 5 It is another schematic diagram of a state where the telescopic assembly contacts the clamping portion provided by the present invention;

[0036] Figure 6 It is a schematic diagram of a state where the telescopic assembly contacts the self-locking shaft sleeve provided by the present invention;

[0037] Figure 7Schematic diagram of the state of the telescopic component when the can lid is in the locked state relative to the can body provided by the present invention;

[0038] Figure 8 Schematic diagram of the state of the telescopic component when the can lid is in the unlocked state relative to the can body provided by the present invention;

[0039] Figure 9 Schematic diagram of the state where the jaw component is separated from the self-locking shaft provided by the present invention.

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

[0041] 01 - Body; 02 - Telescopic component;

[0042] 1 - Jaw part; 2 - Protective cover; 3 - Fixing part; 4 - Slide block; 5 - Push rod; 6 - Elastic part; 7 - Self-locking shaft; 8 - Self-locking shaft sleeve; 9 - Can lid; 10 - Can body; 11 - Second can lid; 12 - First can lid; 13 - Sealing part; 14 - Can mouth; 15 - Can mouth pressing plate; 16 - Limiting part; 17 - Spring fixing part; 18 - Elastic moving gap; 19 - Push rod moving gap; 20 - Clamping cavity; 21 - Telescopic cavity;

[0043] 41 - Second inclined surface; 71 - Clamping part; 72 - First inclined surface; 73 - Transition surface; 74 - Fifth inclined surface; 75 - Clamping groove; 81 - Third inclined surface; 82 - Arc segment; 83 - Fourth inclined surface; 84 - Plane;

[0044] 101 - Driving connection part; 102 - Penetrating part; 103 - Edge connection part. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0046] The core of the present invention is to provide a lid opening and closing structure for realizing the locking and unlocking of the can lid and the can body. Here, the locking and unlocking actually refer to the process of the can lid closing or opening the can body. Specifically, the shapes of the can body and the can lid are not limited, and any can body and can lid structure that requires automatic lid opening and closing in a specific application scenario can be combined.

[0047] Among them, please refer to Figure 2, the can lid 9 can be divided into a first can lid 12 and a second can lid 11. Among them, the first can lid 12 is smaller, and the second can lid 11 is larger and matches the can body 10. For such application scenarios with a standard can body 10, a larger second can lid 11, and a relatively heavy overall weight of the second can lid 11, considering cost issues, a can mouth 14 can be processed on the second can lid 11, and the first can lid 12 is connected through a lid opening and closing structure, so that the first can lid 12 closes or opens the can mouth 14 through a can mouth pressing plate 15, that is, it can realize the operation of injecting materials into the can body 10 through this can mouth 14, or it can realize the operation of closing the can body 10 for material transfer operations.

[0048] Among them, the can lid 9 can also be a structure directly connected to the can body 10, and is directly connected to the can lid through a lid opening and closing 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 the operation of material transfer in the can body 10.

[0049] In the above two cases, it should be noted that please refer to Figure 2 . If the material has a sealing requirement, a seal 13 is provided at the can mouth 14 of the second can lid 11 or the opening of the can body 10, and the lid opening and closing structure can drive the can lid to press the seal 13 to achieve a sealing effect.

[0050] In the above two 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 lid opening and closing structure provided by the present invention specifically includes a self-locking shaft 7 and a jaw assembly, which can realize the unlocking and locking operations of the can lid 9 relative to the can body 10. Please refer to Figure 1 、 Figure 2 .

[0052] Among them, please refer to Figure 1 、 Figure 2 、 Figure 4 , a clamping portion 71 is provided at the first end of the self-locking shaft 7, and the second end is used to connect the can lid 9 that can open and close the can body 10. Taking a specific embodiment as an example, the can lid 9 can be Figure 2 the smaller first can lid 12 shown. 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 are connected as a whole by welding, or the first can lid 12 and the second end of the self-locking shaft 7 are detachably connected as a whole by fasteners.

[0053] It should be noted that for a relatively large can structure, if the first can lid 12 and the self-locking shaft 7 are connected by a detachable connection method, the first can lid 12 and the self-locking shaft 7 can be connected on the ground before the first can lid 12 is connected to the can body 10, avoiding working at heights and ensuring the safety of the operation.

[0054] Please refer to Figure 4 and Figure 5 The jaw assembly includes a body 01 and a telescopic assembly 02 movably disposed within the body 01. The body 01 is connected to a driving end to achieve movement. The movement of the body 01 will naturally drive the telescopic assembly 02 within the body 01 to move synchronously. The driving end here is a component that can drive the body 01 to move, and can be a manipulator or a driving module type of driving component that can achieve multi-directional movement. During specific use, the movement route of the driving end is determined, and it can make the body 01 move along an accurate route to be clamped to the clamping portion 71 or release the clamping with the clamping portion 71. In this case, the movement route of the driving end, the position information of the tank body 10 and the tank cover 9, and the transfer information are all corresponding.

[0055] Specifically, the movement of the telescopic assembly 02 can be clamped to the clamping portion 71 or abutted against the outer periphery of the second end of the self-locking shaft 7. The movement of the telescopic assembly 02 here includes the movement generated with the movement of the body 01, and the expansion and contraction generated by contacting the clamping portion 71. The abutment here specifically refers to the situation where the self-locking shaft 7 and the telescopic assembly 02 remain in contact, and based on the setting of the clamping portion 71, the self-locking shaft 7 will not slip relative to the jaw assembly; and when the telescopic assembly 02 and the second end of the self-locking shaft 7 remain in an abutting state, the locking operation of the tank cover 9 relative to the tank body 10 can be carried out. This abutting state can provide a reference and benchmark for the locking operation of the tank cover 9.

[0056] More specifically, the movement direction of the body 01 and the expansion and contraction direction of the telescopic assembly 02 are perpendicular.

[0057] Taking a specific embodiment as an example, if the body 01 moves up and down and the tank cover 9 also moves up and down relative to the tank body 10, then the expansion and contraction direction of the telescopic assembly 02 is the left and right direction.

[0058] Taking another specific embodiment as an example, if the body 01 moves left and right and the tank cover 9 also moves left and right relative to the tank body 10, then the expansion and contraction direction of the telescopic assembly 02 is the up and down direction.

[0059] In one case, when the driving end can drive the jaw assembly to move, so that the telescopic member moves to engage with the engaging portion 71, in the state where the telescopic member is engaged with the engaging portion 71, that is, a connection is formed between the jaw assembly and the self-locking shaft 7, and the self-locking shaft 7 is connected to the can lid 9. That is, in this state, the jaw assembly has been connected to the can lid 9. When the can lid 9 is locked relative to the can body 10, when the can lid 9 needs to be opened correspondingly, based on the state where the jaw assembly has been connected to the can lid 9, the movement of the driving end is used to realize the movement of the main body 01, and then the movement of the can lid 9 is realized, that is, the operation of opening the can lid 9 can be realized. It should be noted that the overall weight of the can body 10 is relatively large compared to the can lid 9. Therefore, when the main body 01 drives the can lid 9 to move through the telescopic assembly 02, the can body 10 will not move.

[0060] In another specific case, when the telescopic assembly 02 is disengaged from the engaging portion 71 and can reach the second end of the self-locking shaft 7, at this time, the movement of the main body 01 can drive the telescopic assembly 02 to continue to move, and the main body 01 is close to the end face of the can lid 9 away from the can body 10. By the movement of the main body 01, a force for pressing the end face is generated, that is, the can lid 9 can be reliably pressed against the can body 10 to realize the locking operation of the can lid 9 relative to the can body 10.

[0061] In this embodiment, the unlocking and locking of the can lid 9 relative to the can body 10 are realized by the movement of the jaw assembly. For the structure of the relatively large can body 10, automatic opening and closing of the lid can be realized, without the need for manual climbing operations, improving the safety of the lid opening and closing operations, improving the efficiency of lid opening and closing, and reducing labor costs. In addition, through the automatic lid opening and closing operation, the probability of material being contaminated can be reduced, ensuring good storage and reliable transfer of the material.

[0062] Based on the above embodiments, please refer to Figure 4 , the engaging portion 71 includes a first inclined surface 72 disposed away from the second end of the self-locking shaft 7 and a clamping groove 75 disposed close to the second end of the self-locking shaft 7. The first inclined surface 72 connects the bottom surface of the clamping groove 75. It should be noted that the first inclined surface 72 here is based on Figure 4 the schematic cross-sectional view shown, and the actual structure formed at the end of the self-locking shaft 7 provided with the engaging portion 71 can be referred to Figure 2 the schematic shown.

[0063] In a specific embodiment, in the initial state, please refer to Figure 4 , the first inclined surface 72 of the engaging portion 71 abuts against the telescopic assembly 02. Under the pushing force of the first inclined surface 72, the telescopic assembly 02 can be changed from the extended state to the retracted state; in the retracted state, the telescopic assembly 02 can change from contacting the first inclined surface 72 to contacting the groove wall of the clamping groove 75 to realize the engaged state of the engaging portion 71 and the telescopic assembly 02.

[0064] In another specific embodiment, in the initial state, please refer to Figure 5 , the wall of the clamping groove 75 of the clamping part 71 is in contact with the telescopic component 02. In this state, the clamping part 71 has maintained the clamping relationship with the telescopic component 02, and the telescopic component 02 remains in the extended state.

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

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

[0067] The structures of the clamping grooves 75 formed in the above two forms are both triangular grooves. Of course, to ensure the clamping reliability of the clamping groove 75, the clamping groove 75 can be set as a trapezoidal groove as shown in Figure 5 .

[0068] Based on any of the above embodiments, please refer to Figure 6 , the clamping part 71 includes a transition surface 73 connecting the first inclined surface 72 and the bottom surface of the clamping groove 75. The transition surface 73 can be provided with a radian to facilitate the smooth switching of the telescopic component 02 between the first inclined surface 72 and the bottom surface of the clamping groove 75.

[0069] The transition surface 73 is the part used to realize the switching of the telescopic component 02 from the clamped state with the clamping groove 75 to the released state from the clamping groove 75. Please refer to Figure 5 , Figure 8 , Figure 9 . In one case, the released state from the clamping groove 75 specifically refers to that the telescopic component 02 switches from contacting the clamping groove 75 to contacting the first inclined surface 72. After that, when the main body 01 continues to move, the telescopic component 02 can be gradually separated from the first inclined surface 72, so that the clamping jaw assembly can be relatively separated from the self-locking shaft 7. In another case, the released state from the clamping groove 75 specifically refers to, please refer to Figure 5 , Figure 6 , when the telescopic component 02 is in the state of contacting the clamping groove 75, the telescopic component 02 is gradually separated from the clamping groove 75 by the movement of the main body 01. In this case, the corresponding next operation state is to press the can lid 9 against the can body 10 by the main body 01 to realize the locking operation of the can lid 9.

[0070] In this embodiment, the movement of the main body 01 can drive the telescopic component 02 to contact the first inclined surface 72, the transition surface 73, and the clamping groove 75 respectively. Specifically, it means that the main body 01 can move to drive the telescopic component 02 to contact the first inclined surface 72, the transition surface 73, and the clamping groove 75 in sequence, corresponding to unlocking and locking operations of the can lid 9 relative to the can body 10; or the main body 01 can move to drive the telescopic component 02 to contact the clamping groove 75, the transition surface 73, and the first inclined surface 72 in sequence, corresponding to the detachment operation of the jaw component 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. The slider 4 is connected to the main body 01 through an elastic member 6, and a second inclined surface 41 is provided at one end of the slider 4 away from the elastic member 6. The second inclined surface 41 has the same slope 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 main body 01 through an elastic member 6. When the slider 4 moves, it can compress or release the elastic member 6. In addition to the direction driven by the movement of the main body 01, the slider 4 also has a movement direction consistent with the telescopic direction of the elastic member 6.

[0073] Taking an implementation manner as an example, please refer to Figure 4 , Figure 5 , if the main body 01 can move up and down with the driving end, then 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. Through the acting force of the two inclined surfaces, the elastic member 6 is compressed, and the slider 4 moves in a direction away from the clamping portion 71. After that, when the main body 01 continues to move downward, the slider 4 can gradually contact the transition surface 73. Then, the slider 4 changes from the state of contacting the transition surface 73 to the state of moving towards the clamping groove 75. The elastic force by which the elastic member 6 is compressed can make the slider 4 enter the clamping groove 75 to achieve the clamping of the slider 4 and the clamping groove 75. After that, when the main body 01 moves upward, it can drive the can lid 9 to unlock relative to the can body 10; please refer to Figure 6 , Figure 7 , when the main body 01 continues to move downward, it can drive the slider 4 to abut against the outer periphery of the second end of the self-locking shaft 7 until the main 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 slope. Specifically, it is based on the reliable fitting contact between the first inclined surface 72 and the second inclined surface 41 when the main body 01 moves, so as to reliably act on the slider 4 and the elastic member 6 through the acting force of the inclined surface, 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 main body 01 is provided with a clamping cavity 20, at least two telescopic cavities 21 are circumferentially distributed along the clamping cavity 20, and the telescopic cavities 21 communicate with the clamping cavity 20. When the main body 01 moves, the slider 4 in the telescopic cavity 21 can contact the clamping portion 71 located in the clamping cavity 20.

[0076] Please refer to Figure 4 , the clamping cavity 20 is the cavity into which the first end of the self-locking shaft 7 can extend, and the telescopic cavity 21 is at least the cavity for placing the slider 4.

[0077] The telescopic cavity 21 communicates with the clamping cavity 20 so that the slider 4 in the telescopic cavity 21 can contact or separate from the clamping portion 71 in the clamping cavity 20.

[0078] Please refer to Figure 3 , specifically, at least two telescopic cavities 21 are circumferentially distributed along the clamping cavity 20 so that at least two sliders 4 can be arranged circumferentially around the self-locking shaft 7, which can provide better reliability when the clamping portion 71 and the slider 4 are clamped to pull the can lid 9. Similarly, when the clamping portion 71 contacts and is clamped with the slider 4 and the outer periphery of the second end of the slider 4 abuts against the self-locking shaft 7, it can ensure the reliable pressing of the main body 01 on the can lid 9, and ensure the reliability and safety of the unlocking and locking operations of the can lid 9 relative to the can body 10.

[0079] In this embodiment, the case where the clamping portion 71 is located in the clamping cavity 20 corresponds to the process of the jaw 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 clamping portion 71 and the inner wall of the clamping cavity 20 to provide space for the slider 4 to move and facilitate the subsequent separation of the jaw 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 further includes a push rod 5, the elastic member 6 is sleeved on the push rod 5, and both ends of the elastic member 6 are respectively connected to the slider 4 and the main body 01. When the slider 4 moves, it can make the push rod 5 move relative to the main body 01.

[0081] In one implementation, 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 fixedly connected to the inner cavity of the main 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 implementation, one end of the push rod 5 is fixed to the slider 4, and the other end of the push rod 5 can pass through the inner cavity of the body 01. In this case, the elastic member 6 can be sleeved on the outer periphery of the push rod 5 without being fixed. By passing the push rod 5 through the inner cavity of the body 01, a better positioning effect can be provided, so that when the slider 4 moves, the elastic member 6 can move along the axial direction of the push rod 5, ensuring the accuracy and reliability of the movement. The axial direction here is described by taking the push rod 5 as a columnar structure as an example. The shape of the push rod 5 can also be other shapes, which is not limited. Of course, it should be noted that although the push rod 5 passes through the inner cavity of the body 01, the elastic member 6 abuts against the inner wall of the inner cavity and will not pass through the inner cavity.

[0083] Based on any of the above embodiments, please refer to Figure 1 、 Figure 3 , the body 01 includes a fixing member 3 and a jaw member 1. The jaw member 1 includes a driving connection portion 101, a penetrating portion 102, and an edge connection portion 103 that are connected in sequence. The driving connection portion 101 is used to connect to the driving end. The penetrating portion 102 passes through the fixing member 3 and is provided with a clamping cavity 20. The clamping cavity 20 here is the cavity where the jaw assembly 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 portion 103 is provided with a telescopic cavity 21. The telescopic cavity 21 is the cavity for the telescopic assembly 02 to perform telescopic movement. The edge connection portion 103 and the fixing member 3 are detachably connected, so as to facilitate the installation of the telescopic assembly 02 into the telescopic cavity 21 or 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 connection portion 103. There is an elastic movement gap 18 between the inner wall of the cavity and the end of the edge connection portion 103 far 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. In this case, the push rod 5 passes through the telescopic cavity 21 of the edge connection portion 103. In one case, the push rod 5 directly passes through the fixing member 3, and the elastic member 6 moves in the elastic movement gap 18, but the end of the push rod 5 far from the clamping cavity 20 passes through the fixing member 3. In another case, the push rod 5 only passes through the telescopic cavity 21 of the edge connection portion 103, the elastic member 6 moves in the elastic movement gap 18, and the end of the push rod 5 far from the clamping cavity 20 can move in the elastic movement gap 18. In either of the two cases, the elastic member 6 moves in the elastic movement gap 18, and the elastic member 6 and the push rod 5 can move reliably by moving the slider 4.

[0086] Based on any of the above embodiments, please refer to Figure 1, the first end of the push rod 5 is connected to the slider 4, the second end of the push rod 5 is arranged to pass through the through hole on the inner wall of the fixing member 3, and 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 passes through the fixing member 3 and the telescopic cavity 21, while the elastic member 6 is limited within the elastic movement gap 18. The movement of the push rod 5 can be visualized, facilitating the operator to know the unlocking and locking processes of 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 arranged outside 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 driven by the slider 4 when it moves. The setting of the protective cover 2 can prevent the end of the push rod 5 away from the clamping cavity 20 from passing through the jaw assembly to play a limiting role, ensuring the safety of the operation. In essence, the role of the protective cover 2 is to ensure the reliability and safety of the jaw assembly operation, and it can provide a protective effect for the fixing member 3 and the edge connecting portion 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 with a limiting member 16, which is used to block the push rod 5 from moving into the cavity of the fixing member 3 to play a further limiting role and ensure the reliable safety of the movement stroke of the push rod 5.

[0089] As a preferred embodiment, a plurality of adjusting members are arranged between the limiting member 16 and the outer periphery of the fixing member 3. The plurality of adjusting members are sleeved on the push rod 5 and are used to adjust the movement distance of the slider 4 and the push rod 5. The specific adjustment means that by increasing or decreasing the number of adjusting members, the distance between at least two sliders 4 can be changed, realizing the adjustment of the movement stroke of the slider 4 and improving the applicability of the entire lid opening and closing structure. Among them, the adjusting member can be a relatively common gasket with a low cost.

[0090] In a specific embodiment, the larger the distance between at least two sliders 4, the shorter the movement stroke required when cooperating with the can lid 9, that is, the shorter the movement stroke of the telescopic assembly 02 when the can lid 9 is unlocked and locked relative to the can body 10.

[0091] In addition, for the convenience of connecting the elastic member 6, a spring fixing member 17 is also arranged on the outer periphery of the fixing member 3. The through hole on the spring fixing member 17 only provides for the push rod 5 to pass through, and the through hole on the inner wall of the fixing member 3 can be set slightly larger, which can reliably connect the spring through the spring fixing member 17 and facilitate the push rod 5 to pass through the fixing member 3, facilitating the smooth and reliable movement of the telescopic assembly 02.

[0092] Based on any of the above embodiments, please refer to Figure 8 , Figure 9, the self-locking bushing 8 can slide to fit the clamping groove 75 or away from the clamping groove 75. When the self-locking bushing 8 is away from the clamping groove 75, a clamping gap can be formed, so that the telescopic assembly 02 can extend into the clamping gap with the movement of the body 01 and be clamped with the clamping groove 75; when the self-locking bushing 8 fits the clamping groove 75, a force can be formed to push the telescopic assembly 02 to retract, so that the jaw assembly can disengage from the self-locking shaft 7.

[0093] During the actual application process, after the can lid 9 and the can body 10 are locked, there is a need to disengage the jaw assembly from the self-locking shaft 7. Based on this, a self-locking bushing 8 is slidably sleeved on the self-locking shaft 7. The sliding of the self-locking bushing 8 relative to the self-locking shaft 7 depends on its own gravity in one direction and the movement of the body 01 in the other direction, and the two directions are opposite here. In addition, when the self-locking bushing 8 fits the clamping groove 75, it is limited to prevent the self-locking bushing 8 from slipping off the self-locking shaft 7.

[0094] Taking an implementation manner as an example, please refer to Figure 4 , Figure 5 , if the moving direction of the can lid 9 relative to the can body 10 is the up and down direction, then in the initial state, the self-locking bushing 8 is arranged away from the clamping groove 75 under the action of gravity, and the jaw assembly can move from top to bottom, so that the telescopic assembly 02 first contacts the first inclined surface 72 of the clamping portion 71, then enters the gap between the self-locking bushing 8 and the clamping groove 75 after passing through the transition surface 73, and can drive the telescopic assembly 02 to be clamped with the clamping groove 75 by the upward movement of the jaw assembly. At this time, the jaw assembly and the self-locking shaft 7 have formed a component that can move integrally, and the self-locking shaft 7 is connected to the can lid 9. On this basis, by moving the jaw assembly upward, the can lid 9 can be driven to move, so that the can lid 9 is separated from the can body 10 to realize the unlocking operation.

[0095] Please refer to Figure 6 , Figure 7 , if it is necessary to perform the locking operation of the can lid 9 relative to the can body 10, then on the premise that the telescopic assembly 02 can enter the gap between the self-locking bushing 8 and the clamping groove 75, continue to move the jaw assembly downward. At this time, the telescopic assembly 02 is not clamped by the clamping groove 75 and can continue to move downward and enable the telescopic assembly 02 to pass through the self-locking bushing 8. Thereafter, the body 01 can move toward the can lid 9 connected to the second end of the self-locking shaft 7, and the can lid 9 can be reliably pressed against the can body 10 by the pressing force generated by the movement of the body 01. 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 close to 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 both ends of the clamping cavity 20 of the body 01 are communicated. In this case, the depth of the clamping cavity 20 can be not limited. When the body 01 presses the can lid 9, the self-locking shaft can move upward relative to the body 01 or even the clamping groove 75 can penetrate 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 perform the operation of detaching the jaw assembly from the self-locking shaft, the jaw assembly is moved upward. After contacting the self-locking shaft sleeve 8 through the jaw assembly, the telescopic assembly 02 is pushed to move upward and contact the clamping groove 75. In this state, the telescopic assembly 02 is in the retracted state. After further upward movement, the telescopic assembly 02 remains in the retracted state and can pass through the transition surface 73 of the clamping portion 71 of the self-locking shaft, and then move upward to gradually move away from the first inclined surface 72 of the clamping portion 71. After that, the jaw assembly can be detached from the self-locking shaft.

[0097] In the above process, through the setting of the self-locking shaft sleeve 8, the jaw assembly can be separated from the self-locking shaft, so that the jaw assembly can be moved away after the can lid 9 and the can body 10 are locked, and the jaw assembly can be used for the subsequent opening and closing operations of the can body 10 structure and reused, which can improve the applicability and reduce the use cost.

[0098] On the basis of any of the above embodiments, please refer to Figure 7 , an insertion portion is provided on one side of the self-locking shaft sleeve 8 close to the clamping groove 75, and the insertion portion can be inserted into the clamping groove 75; the insertion here means the relationship of reliable fitting with the clamping groove 75, which can enable the self-locking shaft sleeve 8 to move from a position far from the clamping groove 75 through the movement of the main body 01, so that the telescopic assembly 02 can push the self-locking shaft sleeve 8 to move to the position where the insertion portion is inserted into the clamping groove 75 by contacting the self-locking shaft sleeve 8. At this position, when the main body 01 continues to move in the direction away from the can lid 9, the jaw assembly can be detached from the self-locking shaft 7.

[0099] A third inclined surface 81 is provided on one side of the self-locking shaft sleeve 8 far from the clamping 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 in terms of the schematic cross-sectional view. For the part of the self-locking shaft sleeve 8 provided with the third inclined surface 81, please refer to Figure 2 as shown. As Figure 7 shown, the third inclined surface 81 is the part where the telescopic assembly 02 and the self-locking shaft sleeve 8 can contact and the self-locking shaft sleeve 8 can slide on the self-locking shaft 7 through this inclined surface. The sliding here refers to the sliding of the self-locking shaft sleeve 8 in the direction close to the clamping groove 75 so that the insertion portion of the self-locking shaft sleeve 8 can be inserted into the clamping groove 75.

[0100] An acute angle is formed between the third inclined surface 81 and the first inclined surface 72 based on the setting of the first inclined surface 72. When the body 01 moves downward, the telescopic component 02 contacts the first inclined surface 72 to squeeze the telescopic component 02 to retract. Based on the setting of the third inclined surface 81, when the body 01 moves upward, the telescopic component 02 contacts the third inclined surface 81 to squeeze the telescopic component 02 to retract.

[0101] 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 third inclined surface 81 and the transition surface 73 in sequence, so that the body 01 can be disengaged from the self-locking shaft 7. Specifically, in the state where the can lid 9 and the can body 10 are locked, the telescopic component 02 is in the extended state and is located between the can lid 9 and the self-locking shaft sleeve 8, as Figure 7 shown. In this state, if it is necessary to disengage the jaw assembly from the self-locking shaft 7, the jaw assembly is moved upward, and the telescopic component 02 contacts the third inclined surface 81 to change the telescopic component 02 from the extended state to the retracted state, and the self-locking shaft sleeve 8 is pushed toward the direction close to the clamping groove 75 until the insertion part of the self-locking shaft sleeve 8 fits with the clamping groove 75, as Figure 9 shown. After that, if the jaw assembly is continuously moved upward, the telescopic component 02 can remain in the retracted state and contact the transition surface 73. After that, after passing through the transition surface 73, the telescopic component 02 can reach the position of the first inclined surface 72 and gradually change from the retracted state to the extended state as the jaw assembly moves upward. Continuing to move the jaw assembly upward can disengage the jaw assembly from the self-locking shaft 7.

[0102] In this embodiment, through a relatively simple inclined surface matching relationship, the separation of the jaw assembly from the self-locking shaft 7 is realized. The structure is simple and effective, the cost is low, and manual operation can be avoided, ensuring the safety and reliability of the entire process of the opening and closing operation.

[0103] On the basis of any of the above embodiments, please refer to Figure 7 . A fourth inclined surface 83 is provided on one side of the self-locking shaft sleeve 8 close to the clamping groove 75, and the third inclined surface 81 and the fourth inclined surface 83 are connected by an arc section 82 in a transitional manner. Among them, the arc section 82 is the part that can cooperate with the transition section. When the telescopic component 02 transfers from the state of contacting the third inclined surface 81 to contacting the transition section, the arc section 82 can, through the transitional effect, enable the telescopic component 02 to move upward with the body 01 until it is far away from the first inclined surface 72, realizing the separation of the self-locking shaft 7 and the jaw assembly.

[0104] The fourth inclined surface 83 and the third inclined surface 81 are arranged at an acute angle, and the fourth inclined surface 83 is arranged parallel to the fifth inclined surface 74 of the clamping groove 75, so that the self-locking bushing 8 can be clamped in the clamping 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 the same, but the parallelism between the fourth inclined surface 83 and the fifth inclined surface 74 can ensure the reliable fit between the insertion part and the clamping groove 75, thereby ensuring the smoothness and reliability of the process of the jaw assembly disengaging from the self-locking shaft 7. The first inclined surface 72 is preferably arranged parallel to the fifth inclined surface 74, but a small included angle can also be provided, 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 assembly 02 can also be arranged parallel to the first inclined surface 72. In this case, the second inclined surface 41 can be reliably fitted with the first inclined surface 72, and the second inclined surface 41 can also be reliably fitted with the fourth inclined surface 83.

[0106] In a specific embodiment, when the second inclined surface 41 is reliably fitted with the first inclined surface 72, it corresponds to the jaw assembly moving downward so that the telescopic assembly 02 changes from the extended state to the retracted state and remains in contact with the transition surface 73 in the retracted state. After that, when the jaw assembly continues to move, the telescopic assembly 02 can extend into the space between the clamping portion 71 and the self-locking bushing 8. At this time, the telescopic assembly 02 can switch from the retracted state to the extended state. Then, through the clamping relationship between the clamping groove 75 and the telescopic assembly 02, the upward movement of the jaw assembly can 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 a specific embodiment, when the second inclined surface 41 can also be reliably fitted with the fourth inclined surface 83, it corresponds to that when the telescopic assembly 02 is between the clamping portion 71 and the self-locking bushing 8, the jaw assembly continues to move downward, so that the telescopic assembly 02 moves downward until the second inclined surface 41 can also be reliably fitted with the fourth inclined surface 83, causing the telescopic assembly 02 to change from the extended state to the retracted state. When the jaw assembly continues to move downward, the telescopic assembly 02 can change from being in contact with the fourth inclined surface 83 to being in contact with the arc segment 82. After that, when the telescopic assembly 02 continues to move, it can abut against the third inclined surface 81. In this state, the telescopic assembly 02 changes from the retracted state to the extended state. At this time, the telescopic assembly 02 has passed through the self-locking bushing 8. When the jaw assembly continues to move downward, the body 01 can press the can lid 9 to perform the locking operation of 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 clamping portion 71 are both located in the clamping cavity 20 of the main body 01, so that the telescopic assembly 02 can move relative to the outer periphery of the self-locking sleeve 8 and the self-locking shaft 7, and the clamping jaw assembly can be separated from the self-locking sleeve 8 and the self-locking shaft 7, and the clamping jaw assembly can also contact the self-locking sleeve 8 and the self-locking shaft 7 to perform unlocking and locking operations on the tank body 10 and the tank cover 9.

[0109] Based on any of the above embodiments, please refer to Figure 7 , Figure 9 A plane 84 connected to the fourth inclined surface 83 is further provided on the side of the self-locking sleeve 8 close to the clamping groove 75. The plane 84 is provided perpendicular to the axis of the self-locking shaft 7. When the self-locking sleeve 8 is pushed by the telescopic assembly 02 to be clamped in the clamping groove 75, the plane 84 can fit with the bottom wall of the clamping groove 75. The bottom wall of the groove here fits tightly with the plane 84, ensuring the reliable fitting of the clamping groove 75 of the insertion portion.

[0110] The self-locking sleeve 8 is close to one side of the clamping groove 75, namely the insertion part, and the insertion part includes a fourth inclined surface 83 and a plane 84, wherein 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 sleeve 8 and the clamping groove 75, ensure that the telescopic component 02 can maintain a retracted state through contact with the self-locking sleeve 8, and can smoothly move to the position of the first inclined surface 72 through the transition surface 73, and then the telescopic component 02 moves away from the first inclined surface 72, so that the clamping jaw assembly can be reliably separated from the self-locking shaft 7.

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

[0112] The switch cover structure provided by the present invention is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A switch cover structure for realizing the locking and unlocking of a can lid (9) relative to a can body (10), characterized in that, Comprising: A self-locking shaft (7), a clamping portion (71) is provided at the first end of the self-locking shaft (7), and the second end of the self-locking shaft (7) is used to connect the can lid (9); A jaw assembly, including a body (01) and a telescopic assembly (02) movably disposed within the body (01), the body (01) is used to connect to a driving end to achieve movement, the telescopic assembly (02) can move with the body (01) to be clamped to the clamping portion (71) or abut against the outer periphery of the second end of the self-locking shaft (7), and the moving direction of the body (01) is perpendicular to the telescopic direction of the telescopic assembly (02); When the telescopic assembly (02) moves to be clamped to the clamping portion (71), the body (01) can drive the can lid (9) to move through the clamping portion (71) to unlock; When the telescopic assembly (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 the can lid (9) to lock.

2. The switch cover structure according to claim 1, wherein, The clamping portion (71) includes a first inclined surface (72) provided away from the second end of the self-locking shaft (7), a clamping groove (75) provided close to the second end of the self-locking shaft (7), and the first inclined surface (72) connects the groove wall of the clamping groove (75); The movement of the body (01) can drive the telescopic assembly (02) to contact the first inclined surface (72) and the clamping groove (75) to correspondingly achieve retraction and extension, and when the telescopic assembly (02) extends, it can contact the clamping groove (75) to achieve clamping.

3. The switch cover structure according to claim 2, characterized in that, The clamping portion (71) includes a transition surface (73) connecting the first inclined surface (72) and the bottom surface of the clamping groove (75), and the movement of the body (01) can drive the telescopic assembly (02) to contact the first inclined surface (72), the transition surface (73), and the clamping groove (75) respectively.

4. The switch cover structure according to claim 3, wherein The telescopic assembly (02) includes a slider (4), the slider (4) is connected to the body (01) through an elastic member (6), and a second inclined surface (41) is provided at one end of the slider (4) away from the elastic member (6), and the second inclined surface (41) has the same slope as the first inclined surface (72).

5. The switch cover structure according to claim 4, characterized in that, The body (01) is provided with a clamping cavity (20), at least two telescopic cavities (21) are circumferentially distributed along the clamping cavity (20), and the telescopic cavities (21) communicate with the clamping cavity (20). When the body (01) moves, the slider (4) in the telescopic cavity (21) can contact the clamping portion (71) located in the clamping cavity (20).

6. The switch cover structure according to claim 5, wherein The telescopic assembly (02) further includes a push rod (5), the elastic member (6) is sleeved on the push rod (5), and both ends of the elastic member (6) are respectively connected to the slider (4) and the body (01), and when the slider (4) moves, it can make the push rod (5) move relative to the body (01); The body (01) includes a fixing member (3) and a jaw member (1). The jaw member (1) includes a driving connection portion (101), a penetrating portion (102), and an edge connection portion (103) connected in sequence. The driving connection portion (101) is used to connect to the driving end. The penetrating portion (102) passes through the fixing member (3) and is provided with the clamping cavity (20). The edge connection portion (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 connection portion (103). There is an elastic movement gap (18) between the inner wall of the cavity and the end of the edge connection 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 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). The second end of the push rod (5) passes 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. A protective cover (2) is arranged 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) driven by the movement of the slider (4). The second end of the push rod (5) is fixedly connected with a limiting member (16) for blocking the push rod (5) from moving into the cavity of the fixing member (3). A plurality of adjusting members are arranged between the limiting member (16) and the outer periphery of the fixing member (3). The plurality of adjusting members are sleeved on the push rod (5) to adjust the movement distance of the slider (4) and the push rod (5).

7. The switch cover structure according to any one of claims 2 to 6, characterized in that, A self-locking shaft sleeve (8) is slidably arranged on the self-locking shaft (7). The self-locking shaft sleeve (8) can slide to fit the clamping groove (75) or away from the clamping groove (75). When the self-locking shaft sleeve (8) is away from the clamping groove (75), a clamping gap can be formed so that the telescopic assembly (02) can extend into the clamping gap with the movement of the body (01) and be clamped with the clamping groove (75). When the self-locking shaft sleeve (8) fits the clamping groove (75), a force can be formed to push the telescopic assembly (02) to retract so that the jaw assembly can be separated from the self-locking shaft (7).

8. The switch cover structure according to claim 7, wherein An insertion portion is arranged on one side of the self-locking shaft sleeve (8) close to the clamping groove (75). The insertion portion can be inserted into the clamping groove (75). A third inclined surface (81) is arranged on the side of the self-locking shaft sleeve (8) away from the clamping 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). When the can lid (9) and the can body (10) are locked, the body (01) can drive the telescopic assembly (02) to move, so that the telescopic assembly (02) can successively contact the third inclined surface (81) and the transition surface (73) of the self-locking shaft (7), so that the body (01) is disengaged from the self-locking shaft (7).

9. The switch cover structure according to claim 8, wherein, A fourth inclined surface (83) is provided on one side of the self-locking shaft sleeve (8) close to the clamping groove (75). The third inclined surface (81) and the fourth inclined surface (83) are connected by an arc section (82). The outer edge of the arc section (82) and the outer edge of the clamping portion (71) are both located in the clamping cavity (20) of the body (01); The fourth inclined surface (83) is arranged parallel to the fifth inclined surface (74) of the clamping groove (75), so that the self-locking shaft sleeve (8) can be clamped in the clamping groove (75).

10. The switch cover structure according to claim 9, characterized in that, A plane (84) connected to the fourth inclined surface (83) is further provided on one side of the self-locking shaft sleeve (8) close to the clamping groove (75). The plane (84) is perpendicular to the axis of the self-locking shaft (7). When the self-locking shaft sleeve (8) is pushed by the telescopic assembly (02) to be clamped in the clamping groove (75), the plane (84) can be attached to the bottom wall of the clamping groove (75).

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