Cleaning device

Abstract

The invention relates to the technical field of cleaning machines, in particular to a cleaning device which comprises a chassis, an adapter, a locking mechanism and a machine body. The chassis is used for cleaning a to-be-cleaned surface; the adapter is rotatably mounted on the chassis in a first direction; the locking mechanism is arranged in the adapter and comprises a driving assembly and a spring bolt; the machine body is provided with a limiting structure, the machine body can be rotationally installed on the adapter in the second direction, the first direction and the second direction intersect, the axial direction of the machine body and the second direction intersect, and the machine body is configured to have a locking state and an unlocking state in response to the angle between the machine body and the surface to be cleaned; when the machine body is in a locked state, the spring bolt is driven by the driving assembly to be inserted into the limiting structure; the relative position of the fuselage and the adapter can be fixed to prevent the fuselage from rotating around the second direction relative to the adapter, so that the risk of fuselage damage is reduced; and when the machine body is in the unlocking state, the spring bolt is driven by the driving assembly to be separated from the limiting structure, and normal work of the cleaning equipment is not affected.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning machines, and in particular to a cleaning device. Background Art

[0002] A floor scrubber is a machine used to clean the floor. It can replace manual mopping to clean the floor efficiently. The floor scrubber usually includes a chassis for cleaning the floor and a body hinged to the chassis.

[0003] In the related art, an adapter is added to the floor scrubber, and the adapter is rotatably connected to the chassis, and the body is rotatably connected to the adapter, so that the body has two rotational degrees of freedom. The body rotates and switches between a standing state and a non-standing state relative to the chassis through one of the rotational degrees of freedom, and the body rotates and switches between a return state and a non-return state relative to the adapter through the other rotational degree of freedom, so as to improve the flexibility of the floor scrubber. However, when the floor scrubber is stored, the high rotational flexibility of the body relative to the adapter makes it difficult for the body to remain in an upright state, causing the body to easily tip over, rotate, tilt, etc., making the body easily damaged. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a cleaning device, aiming to solve the technical problem that the cleaning device is difficult to fix when the body does not need to be rotated.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the embodiment of the present application is: a cleaning device, including a chassis, an adapter, a locking mechanism and a body.

[0006] The chassis is used to clean the surface to be cleaned; the adapter can be rotatably mounted on the chassis around a first direction; the locking mechanism is arranged in the adapter, and the locking mechanism includes a driving assembly and a locking tongue; the body is provided with a limiting structure, and the body can be rotatably mounted on the adapter around a second direction, the first direction and the second direction intersect, the axial direction of the body intersects with the second direction, and the body is configured to have a locked state and an unlocked state in response to its angle with the surface to be cleaned; wherein, when the body is in the locked state, the locking tongue is driven by the driving assembly to be inserted into the limiting structure; when the body is in the unlocked state, the locking tongue is driven by the driving assembly to be disengaged from the limiting structure.

[0007] The beneficial effects of the cleaning device provided by the present application are: when the body is in a locked state, the locking tongue is driven by the driving assembly to be inserted into the limiting structure; the relative position of the body and the adapter can be fixed to prevent the body from rotating in a second direction relative to the adapter, thereby reducing the risk of the body tipping over or being damaged; and when the body is in an unlocked state, the locking tongue is driven by the driving assembly to disengage from the limiting structure, without affecting the normal operation of the cleaning equipment.

[0008] In some embodiments, the driving assembly includes a pushing group and a first elastic member. When the body is in a locked state, the first elastic member or the pushing group drives the locking tongue to insert into the limiting structure; when the body is in an unlocked state, the first elastic member drives the locking tongue to disengage from the limiting structure.

[0009] In some embodiments, when the body is in a locked state, the first elastic member is in a compressed state; when the body is in an unlocked state, the first elastic member is in a natural state.

[0010] In some embodiments, the pushing group includes a first driving member and a second driving member, the first driving member and the second driving member are both slidably disposed in the adapter, the second driving member can push the first driving member to slide, and the first driving member is connected to the locking tongue;

[0011] When the body is in a locked state, one end of the second driving member abuts against a limiting surface on the chassis, and the other end abuts against the first driving member, and the locking tongue squeezes the first elastic member; when the body is in an unlocked state, the one end of the second driving member is separated from the limiting surface, and the other end of the second driving member abuts against the first driving member.

[0012] In some embodiments, the first driving member is provided with a driving inclined surface, and the second driving member is abutted against the driving inclined surface; and / or, the second driving member is provided with a driving inclined surface, and the first driving member is abutted against the driving inclined surface;

[0013] The driving inclined surface includes a first end and a second end that are arranged opposite to each other, the first end is closer to the locking tongue than the second end, and the first end is closer to the limiting surface than the second end.

[0014] In some embodiments, the pushing group further includes a second elastic member, one end of the second elastic member is connected to the first driving member, and the other end of the second elastic member is connected to the locking tongue.

[0015] In some embodiments, the pushing group includes a first connecting member and a rotating member, the rotating member is rotatably disposed on the adapter, and the rotating member includes a third end and a fourth end located on both sides of its rotation axis, the third end abuts against the locking tongue, and the first connecting member is respectively connected to the fourth end and the chassis;

[0016] When the body is in a locked state, the first connecting member drives the rotating member to rotate, so that the third end pushes the locking tongue to insert into the limiting structure, and the locking tongue squeezes the first elastic member; when the body is in an unlocked state, the first elastic member drives the locking tongue to disengage from the limiting structure.

[0017] In some embodiments, the first connecting member includes a first pull rope, which is respectively connected to the fourth end and the chassis, and when the fuselage is in a locked state, the distance between the connection between the first pull rope and the fourth end and the connection between the first pull rope and the chassis is equal to the length of the first pull rope; when the fuselage is in an unlocked state, the distance between the connection between the first pull rope and the fourth end and the connection between the first pull rope and the chassis is less than the length of the first pull rope.

[0018] In some embodiments, the body has a stop surface. When the body is in a locked state, the first connecting member can drive the rotating member to rotate to the fourth end away from the stop surface; when the body is in an unlocked state, driven by the first elastic member, the rotating member can rotate to the fourth end and abut against the stop surface.

[0019] In some embodiments, the adapter is provided with a accommodating cavity and a first through hole connected to the accommodating cavity, and the locking tongue and the first elastic member are both accommodated in the accommodating cavity; when the body is in a locked state, the limiting structure is aligned with the first through hole, and the locking tongue passes through the first through hole and is plugged into the limiting structure.

[0020] In some embodiments, the locking tongue includes an insert portion and a stop portion, and in the radial direction of the first penetration hole, the stop portion protrudes from the insert portion, the first elastic member is sleeved on the insert portion, and one end of the first elastic member abuts against the stop portion, and the other end of the first elastic member abuts against the inner wall of the accommodating cavity.

[0021] In some embodiments, when the body is in a locked state, the first elastic member is in a natural state, and when the body is in an unlocked state, the first elastic member is in a compressed state.

[0022] In some embodiments, the adapter is provided with a first chamber, a second chamber, a second through hole connected to the first chamber, and a third through hole connected to the second chamber; the pushing group includes a third driving member, a third elastic member, and a second connecting member, the third driving member and the third elastic member are both accommodated in the second chamber, the locking tongue and the first elastic member are both accommodated in the first chamber, and the second connecting member is respectively connected to the third driving member and the locking tongue;

[0023] When the body is in a locked state, part of the third driving member passes through the third through-hole and abuts against the limiting surface on the chassis, and part of the third driving member is accommodated in the second chamber, and the first elastic member drives the locking tongue to pass through the second through-hole and be plugged into the limiting structure; when the body is in an unlocked state, the third driving member is disengaged from the limiting surface, and the third elastic member drives the third driving member to drive the locking tongue to disengage from the limiting structure, and the locking tongue squeezes the first elastic member. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 is a schematic structural diagram of a cleaning device in one embodiment of the present application when it is in a locked state;

[0026] Figure 2 yes Figure 1 A schematic cross-sectional view of the cleaning device shown;

[0027] Figure 3 yes Figure 2 An enlarged view of area A in the cleaning device shown;

[0028] Figure 4 yes Figure 3 The structural schematic diagram of the locking mechanism and part of the adapter in the enlarged view shown;

[0029] Figure 5 yes Figure 1 A schematic diagram of the structure of the cleaning device shown in another locked state;

[0030] Figure 6 yes Figure 5 A schematic cross-sectional view of the cleaning device shown;

[0031] Figure 7 yes Figure 1 The schematic diagram of the structure of the cleaning device shown is in an unlocked state;

[0032] Figure 8 yes Figure 7 A schematic cross-sectional view of the cleaning device shown;

[0033] Fig. 9 yes Figure 8 An enlarged view of area B in the cleaning device shown;

[0034] Fig.10 yes Figure 1 A schematic diagram of the structure of the cleaning device shown in another unlocked state;

[0035] Fig.11 is a schematic structural diagram of a cleaning device in another embodiment of the present application when it is in a locked state;

[0036] Fig.12 yes Fig.11 A schematic cross-sectional view of the cleaning device shown;

[0037] Fig.13 yes Fig.11 A schematic diagram of the structure of the cleaning device shown in another locked state;

[0038] Fig.14 yes Fig.13 A schematic cross-sectional view of an adapter, a body and a locking mechanism in the cleaning device shown;

[0039] Fig.15 yes Fig.11 The schematic diagram of the structure of the cleaning device shown is in an unlocked state;

[0040] Fig.16 yes Fig.15 A schematic cross-sectional view of the cleaning device shown;

[0041] Fig.17 is a schematic structural diagram of a cleaning device in another embodiment of the present application when it is in a locked state;

[0042] Fig.18 yes Fig.17 A schematic cross-sectional view of the cleaning device shown;

[0043] Fig.19 yes Fig.18 Enlarged view of the middle C area;

[0044] Fig. 20 yes Fig.19 A schematic diagram of the structure of the middle locking mechanism and some adapters;

[0045] Fig.21 yes Fig.17 A schematic diagram of the structure of the cleaning device shown in another locked state;

[0046] Fig. 22 yes Fig.21 A schematic cross-sectional view of an adapter, a body and a locking mechanism in the cleaning device shown;

[0047] Fig.23 18 is a schematic diagram of the structure of the cleaning device when it is in an unlocked state;

[0048] Fig.24 yes Fig.23 A schematic cross-sectional view of the adapter, the body and the locking mechanism shown;

[0049] Fig.25 yes Fig.24 Magnified view of area D in the middle.

[0050] Reference numerals:

[0051] 1. Chassis; 11. Limiting surface;

[0052] 2. adapter; 21. accommodating cavity; 211. first cavity; 212. second cavity; 22. first through-hole; 23. first chamber; 24. second chamber; 25. second through-hole; 26. third through-hole; 27. fourth through-hole; 28. connecting chamber; 29. ​​first connecting portion; 210. second connecting portion;

[0053] 3. Locking mechanism; 31. Driving assembly; 311. First elastic member; 312. Pushing group; 3121. First driving member; 3122. Second driving member; 31221. Driving inclined plane; 31222. First end; 31223. Second end; 3123. Second elastic member; 3124. First connecting member; 3125. Rotating member; 31251. Third end; 31252. Fourth end; 3126. Third driving member; 3127. Third elastic member; 3128. Second connecting member; 32. Lock tongue; 321. Inserting portion; 322. Stopping portion;

[0054] 4. body; 41. limiting structure; 42. stop surface. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0056] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0058] References to "one embodiment", "some embodiments" or "an embodiment" described in the specification of this application mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some other embodiments", "in some other embodiments", etc., which appear at different places in this specification, do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. In addition, in one or more embodiments, particular features, structures or characteristics may be combined in any suitable manner.

[0059] A floor scrubber is a machine used to clean the floor. It can replace manual mopping to clean the floor efficiently. The floor scrubber usually includes a chassis for cleaning the floor and a body hinged to the chassis.

[0060] In the related art, an adapter is added to the floor scrubber, and the adapter is rotatably connected to the chassis, and the body is rotatably connected to the adapter, so that the body has two rotational degrees of freedom. The body rotates and switches between a standing state and a non-standing state relative to the chassis through one of the rotational degrees of freedom, and the body rotates and switches between a return state and a non-return state relative to the adapter through the other rotational degree of freedom, so as to improve the flexibility of the floor scrubber. However, when the floor scrubber is stored, the high rotational flexibility of the body relative to the adapter makes it difficult for the body to remain in an upright state, causing the body to easily tip over, rotate, tilt, etc., making the body easily damaged.

[0061] In view of the above problems, an embodiment of the present application provides a cleaning device, which aims to solve the technical problem that the cleaning equipment is difficult to fix when the body does not need to be rotated.

[0062] In order to illustrate the technical solution of the present application, a description is given below with reference to specific drawings and embodiments.

[0063] Please refer to Figures 1 to 10 An embodiment of the present application provides a cleaning device, including a chassis 1, an adapter 2, a locking mechanism 3 and a body 4.

[0064] The chassis 1 is used to clean the surface to be cleaned; the adapter 2 is rotatably mounted on the chassis 1 around a first direction; the locking mechanism 3 is arranged in the adapter 2, and the locking mechanism 3 includes a driving assembly 31 and a locking tongue 32; the body 4 is provided with a limiting structure 41, and the body 4 is rotatably mounted on the adapter 2 around a second direction, the first direction and the second direction intersect, the axial direction of the body intersects the second direction, and the body 4 is configured to have a locked state and an unlocked state in response to the angle between the body 4 and the surface to be cleaned; wherein, when the body 4 is in the locked state, the locking tongue 32 is driven by the driving assembly 31 to insert into the limiting structure 41 (such as Figures 1 to 6 When the fuselage 4 is in the unlocked state, the lock tongue 32 is driven by the drive assembly 31 to disengage the limiting structure 41 (as shown); Figures 7 to 9 shown).

[0065] The bottom of the chassis 1 carries a cleaning component (such as a rag), and the chassis 1 is connected to the body 4 through the adapter 2, and the adapter 2 is rotatably connected to the chassis 1, so that the adapter 2 and the body 4 can be in an upright state relative to the chassis 1 (such as Figure 1 As shown), tilted state (as shown Figure 7 as shown) and lying flat (as shown Fig.10 Furthermore, since the adapter 2 and the body 4 are rotatably connected, the body 4 can also rotate relative to the adapter 2 in the above-mentioned upright state, inclined state and lying state. Figure 1 , indicating that when the adapter 2 is in an upright state, the fuselage 4 is in an upright state, Figure 5 , Fig.13 It is shown that when the adapter 2 is in an upright state, the fuselage 4 rotates relative to the adapter 2 and is in an inclined state. It can be understood that the fuselage 4 is configured to have a locked state and an unlocked state in response to its angle with the cleaning surface, which means that when the fuselage 4 is tilted relative to the surface to be cleaned (the adapter 2 and the fuselage 4 are in an inclined state or lying flat relative to the chassis 1), the fuselage 4 is in an unlocked state, the fuselage 4 can rotate relative to the adapter 2, and the cleaning components on the chassis 1 can be twisted left and right relative to the fuselage 4 to improve flexibility. When the fuselage 2 is upright relative to the surface to be cleaned (the adapter 2 and the fuselage 4 are in an upright state relative to the chassis 1), the fuselage 4 is in a locked state, and the cleaning components on the chassis 1 will no longer twist left and right relative to the fuselage 4.

[0066] The surface to be cleaned can be the ground, counter top, or desktop surface to be cleaned.

[0067] Please refer to Fig.12In some embodiments, the adapter 2 includes a first connecting portion 29 and a second connecting portion 210, the first connecting portion 29 is rotatably disposed on the chassis 1, the second connecting portion 210 is rotatably penetrated through the fuselage 4, or the second connecting portion 210 is rotatably sleeved on the fuselage 4, the first connecting portion 29 has a first fitting slope, the direction of the first fitting slope is parallel to the second direction, the fuselage 4 has a second fitting slope, the direction of the second fitting slope is parallel to the second direction.

[0068] For ease of description, the first direction X is defined to be parallel to the axis direction of the adapter 2 rotating relative to the chassis 1. Generally, the first direction X is parallel to the surface of the surface to be cleaned. The second direction Y is defined to be parallel to the axis direction of the adapter 2 and the body 4 rotating relative to each other (the axial direction of the second connection portion 210). The second direction Y is not perpendicular to the first direction X and the angle is fixed. When the adapter 2 rotates relative to the chassis 1, the axial direction of the second connection portion 210, i.e., the second direction, will change. The outer wall of the body 4 is generally columnar. The axial direction corresponding to the outer wall of the body 4 (referred to as "the axial direction of the body 4") is defined as the axial direction L. The second direction Y is not parallel to the axial direction L. As the body 4 rotates relative to the adapter 2, the direction of the axial direction L changes, and the angle between the second direction Y and the axial direction L changes. When the adapter 2 and the body 4 are both in an upright state relative to the base 1, the axial direction L and the axial direction of the adapter 2 are parallel to the direction of gravity and perpendicular to the first direction X. When the adapter 2 is in an upright state relative to the base 1 and the fuselage 4 is in an inclined state relative to the base 1, the axial direction of the adapter 2 is parallel to the direction of gravity, and the axial direction L of the fuselage 4 is not parallel to the direction of gravity. It can also be understood that when the fuselage 4 and the adapter 2 are not fixed, the fuselage 4 is easy to rotate relative to the adapter 2 to a state where the axial direction L is not parallel to the direction of gravity, and then tilt or fall.

[0069] The cleaning device provided in the embodiment of the present application is generally expected to be able to stand stably when the cleaning device is in a non-working state. In this embodiment, a locking mechanism 3 is provided in the adapter 2, and a limiting structure 41 is provided in the fuselage 4. When the fuselage 4 is in a locked state, the locking tongue 32 is driven by the driving component 31 to be inserted into the limiting structure 41; the relative position of the fuselage 4 and the adapter 2 can be fixed to prevent the fuselage 4 from rotating about the second direction relative to the adapter 2, thereby reducing the risk of the fuselage 4 tipping over or being damaged; and when the fuselage 4 is in an unlocked state, the locking tongue 32 is driven by the driving component 31 to disengage from the limiting structure 41, without affecting the normal operation of the cleaning device.

[0070] It should be noted that when the fuselage 4 is in a locked state, the limiting structure 41 on the fuselage 4 is aligned with the locking tongue 32, so that the locking tongue 32 can be inserted into the limiting structure 41. The process of locking the fuselage 4 is as follows: the adapter 2 rotates around a first direction so that the axial direction of the fuselage 4 is parallel to the gravity direction; if the limiting structure 41 on the fuselage 4 is aligned with the locking tongue 32, the locking tongue 32 will be driven by the driving assembly 31 to insert into the limiting structure 41; if the limiting structure 41 on the fuselage 4 is not aligned with the locking tongue 32, the fuselage 4 rotates around a second direction until the limiting structure 41 is aligned with the locking tongue 32, so that the locking tongue 32 is inserted into the limiting structure 41, and at this time, the fuselage 4 cannot rotate relative to the adapter 2.

[0071] The actions in the above process (eg, the adapter 2 rotates around the first direction, the body 4 rotates around the second direction) can be completed manually by the user or automatically by the control system in the cleaning device.

[0072] In the cleaning device of the embodiment of the present application, the limiting structure 41 is a slot provided on the body 4 .

[0073] Please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 In some embodiments, a plurality of limiting structures 41 are provided on the fuselage 4, and the plurality of limiting structures 41 are arranged on the fuselage 4 at intervals around the second direction. When the fuselage 4 rotates relative to the adapter 2, the locking tongue 32 can be aligned with different limiting structures 41, so that the locking tongue 32 can be plugged into different limiting structures 41, so that the fuselage 4 has multiple locking states. In different locking states, the inclination direction and / or inclination angle of the fuselage 4 relative to the gravity direction are different.

[0074] It should be noted that, in the locked state, the fuselage 4 is in a standing state, and the axial direction L of the fuselage 4 is parallel to the vertical direction (such as Figure 1 As shown), or the axial direction of the fuselage 4 is tilted relative to the vertical direction (as shown Figure 5 ), and the degree of inclination of the fuselage 4 is determined by the angle of rotation of the adapter 2 around the first direction. In the unlocked state, the lock tongue 32 is disengaged from the limiting structure 41, and the fuselage 4 can rotate relative to the adapter 2. At this time, the axial direction L of the fuselage 4 is inclined relative to the vertical direction (as shown in FIG. Figure 7 and Fig.10 As shown), and the degree of inclination of the fuselage 4 is determined by the rotation angle of the adapter 2 around the first direction and the rotation angle of the fuselage 4 around the second direction.

[0075] In some embodiments, the driving assembly 31 includes a pushing group 312 and a first elastic member 311. When the body 4 is in a locked state, the first elastic member 311 or the pushing group 312 drives the locking tongue 32 to insert into the limiting structure 41; when the body 4 is in an unlocked state, the first elastic member 311 drives the locking tongue 32 to disengage from the limiting structure 41.

[0076] exist Figures 1 to 10 In the embodiment shown and Figures 11 to 16 In the illustrated embodiment, when the body 4 is in a locked state, the first elastic member 311 is in a compressed state; when the body 4 is in an unlocked state, the first elastic member 311 is in a natural state.

[0077] When the body 4 is in the locked state, the push group 312 pushes the lock tongue 32 to insert into the limiting structure 41, and the lock tongue 32 squeezes the first elastic member 311, and the elastic force generated by the first elastic member 311 is applied to the lock tongue 32. When the body 4 is in the unlocked state, the first elastic member 311 returns to the natural state. During the process of the first elastic member 311 returning to the natural state, the elastic force generated by the first elastic member 311 can drive the lock tongue 32 to move away from the limiting structure 41. Through the above arrangement, the structure of the driving assembly 31 can be simplified.

[0078] Please refer to Figure 2 and Figure 3 In some embodiments, the pushing group 312 includes a first driving member 3121 and a second driving member 3122. The first driving member 3121 and the second driving member 3122 can be slidably disposed in the adapter 2. The second driving member 3122 can push the first driving member 3121 to slide. The first driving member 3121 is connected to the locking tongue 32.

[0079] When the body 4 is in the locked state, the adapter 2 rotates relative to the chassis 1, so that the second driving member 3122 moves until one end of the second driving member 3122 abuts against the limiting surface 11 on the chassis 1, and the other end abuts against the first driving member 3121, so that the second driving member 3122 pushes the first driving member 3121 to move, and the first driving member 3121 pushes the locking tongue 32, so that the locking tongue 32 is inserted into the limiting structure 41, and the locking tongue 32 squeezes the first elastic member 311; Fig. 9 When the body 4 is in the unlocked state, the adapter 2 rotates relative to the chassis 1, so that the second driving member 3122 moves until one end of the second driving member 3122 is separated from the limiting surface 11, and the other end of the second driving member 3122 abuts against the first driving member 3121. The first elastic member 311 drives the locking tongue 32 to separate from the limiting structure 41, so that the locking tongue 32 pushes the first driving member 3121, and the first driving member 3121 pushes the second driving member 3122 to move.

[0080] By adopting the above technical solution, the thrust applied by the limiting surface 11 to the second driving member 3122 can be converted into the thrust applied by the first driving member 3121 to the locking tongue 32. That is, when the body 4 is in the locked state, one end of the second driving member 3122 abuts against the limiting surface 11 on the chassis 1, and the other end abuts against the first driving member 3121, so that the second driving member 3122 can push the first driving member 3121 to slide, so that the first driving member 3121 pushes the locking tongue 32 to overcome the resistance of the first elastic member 311 and insert into the limiting structure 41.

[0081] It should be noted that, in the above embodiment, the sliding direction of the first driving member 3121 is parallel to the extending direction of the limiting structure 41. Figure 2 and Figure 3 In the embodiment shown, the extension direction of the limiting structure 41 is parallel to the second direction, and the sliding direction of the first driving member 3121 is parallel to the second direction. The sliding direction of the second driving member 3122 can be set according to the direction in which the second driving member 3122 and the limiting surface 11 on the chassis 1 are relatively arranged, and the sliding direction of the second driving member 3122 is parallel to the direction in which the second driving member 3122 and the limiting surface 11 are relatively arranged. For example, in Figure 1 and Figure 2 In the illustrated embodiment, the direction in which the second driving member 3122 and the limiting surface 11 are arranged relative to each other is parallel to the first direction, and the sliding direction of the second driving member 3122 is parallel to the first direction.

[0082] In some embodiments, the sliding direction of the first driving member 3121 intersects with the sliding direction of the second driving member 3122, and the thrust applied by the limiting surface 11 to the second driving member 3122 is converted into the thrust applied by the first driving member 3121 to the locking tongue 32, and the direction of the force can also be changed. Figures 1 to 3 In the illustrated embodiment, the thrust applied by the limiting surface 11 to the second driving member 3122 is parallel to the first direction, the sliding direction of the second driving member 3122 is parallel to the first direction, the sliding direction of the first driving member 3121 is parallel to the extension direction of the limiting structure 41, and the thrust applied by the first driving member 3121 to the locking tongue 32 is parallel to the extension direction of the limiting structure 41. In addition, the sliding direction of the first driving member 3121 intersects with the sliding direction of the second driving member 3122, which can also reduce the moving space of the pushing group 312 to reduce the volume of the driving assembly 31.

[0083] Please refer to Figure 3 and Figure 4In some embodiments, the first driving member 3121 is provided with a driving inclined surface 31221, and the second driving member 3122 abuts against the driving inclined surface 31221; and / or, the second driving member 3122 is provided with a driving inclined surface 31221, and the first driving member 3121 abuts against the driving inclined surface 31221. The driving inclined surface 31221 includes a first end 31222 and a second end 31223 that are oppositely arranged, the first end 31222 is closer to the locking tongue 32 than the second end 31223, and the first end 31222 is closer to the limiting surface 11 than the second end 31223.

[0084] By adopting the above technical solution, the second driving member 3122 is abutted against the driving inclined surface 31221 and / or the first driving member 3121 is abutted against the driving inclined surface 31221. When the second driving member 3122 pushes the first driving member 3121 to slide, the sliding directions of the first driving member 3121 and the second driving member 3122 are cross-arranged.

[0085] Please refer to Figure 3 In some embodiments, the pushing group 312 further includes a second elastic member 3123 , one end of the second elastic member 3123 is connected to the first driving member 3121 , and the other end of the second elastic member 3123 is connected to the locking tongue 32 .

[0086] In the above embodiment, the second elastic member 3123 plays a buffering role. During the locking process of the fuselage 4, the first driving member 3121 squeezes the second elastic member 3123, so that the thrust applied by the second elastic member 3123 to the lock tongue 32 increases slowly, so that the lock tongue 32 can move slowly and stably insert into the limiting structure 41; during the unlocking process of the fuselage 4, the first elastic member 311 drives the lock tongue 32 to move, and the lock tongue 32 squeezes the second elastic member 3123, so that the thrust applied by the second elastic member 3123 to the first driving member 3121 increases slowly, so that the first driving member 3121 and the second driving member 3122 can move slowly. By providing the second elastic member 3123, the stability of the locking mechanism 3 can be enhanced, so as to reduce the risk of damage to the locking mechanism 3 and extend the service life of the locking mechanism 3.

[0087] Please refer to Fig.11 and Fig.12 In some embodiments, the push group 312 includes a first connecting member 3124 and a rotating member 3125. The rotating member 3125 is rotatably disposed on the adapter 2, and the rotating member 3125 includes a third end 31251 and a fourth end 31252 located on both sides of its rotation axis. The third end 31251 abuts against the locking tongue 32, and the first connecting member 3124 is respectively connected to the fourth end 31252 and the chassis 1. When the fuselage 4 is in a locked state (such as Fig.11 and Fig.12 , Fig.13 and Fig.14), the first connecting member 3124 drives the rotating member 3125 to rotate, so that the third end 31251 pushes the locking tongue 32 to insert into the limiting structure 41, and the locking tongue 32 squeezes the first elastic member 311; when the fuselage 4 is in the unlocked state (such as Fig.15 and Fig.16 ), the first elastic member 311 drives the locking tongue 32 to separate from the limiting structure 41.

[0088] In the above embodiment, when the fuselage 4 is in a locked state, the first connecting member 3124 is tightened and drives the rotating member 3125 to rotate, so that the third end 31251 pushes the locking tongue 32 to overcome the resistance of the first elastic member 311 and insert into the limiting structure 41; when the fuselage 4 is in an unlocked state, the first connecting member 3124 is relaxed, and the first elastic member 311 returns to a natural state and drives the locking tongue 32 to disengage from the limiting structure 41.

[0089] Please refer to Fig.11 , Fig.12 , Fig.15 and Fig.16 In some embodiments, the first connecting member 3124 includes a first pull rope, which is respectively connected to the fourth end 31252 and the chassis 1, and when the fuselage 4 is in a locked state, the distance between the connection between the first pull rope and the fourth end 31252 and the connection between the first pull rope and the chassis 1 is equal to the length of the first pull rope, so that the first pull rope is tightened and drives the rotating member 3125 to rotate; when the fuselage 4 is in an unlocked state, the distance between the connection between the first pull rope and the fourth end 31252 and the connection between the first pull rope and the chassis 1 is less than the length of the first pull rope, so that the second pull rope is relaxed, so that the force exerted by the first pull rope on the rotating member 3125 disappears.

[0090] In other embodiments, the first connecting member 3124 includes a hinged first connecting rod and a second connecting rod, the end of the first connecting rod away from the second connecting rod is rotatably connected to the fourth end 31252, and the end of the second connecting rod away from the first connecting rod is rotatably connected to the chassis 1. When the fuselage 4 is in a locked state, the distance between the hinge of the first connecting rod and the fourth end 31252 and the hinge of the second connecting rod and the chassis 1 is the first distance; when the fuselage 4 is in an unlocked state, the distance between the hinge of the first connecting rod and the fourth end 31252 and the hinge of the second connecting rod and the chassis 1 is the second distance; the sum of the distance between the hinge of the first connecting rod and the second connecting rod and the hinge of the first connecting rod and the fourth end 31252 and the distance between the hinge of the first connecting rod and the second connecting rod and the hinge of the second connecting rod and the chassis 1 is the third distance. The second distance is smaller than the first distance, and the first distance is equal to the third distance. When the fuselage 4 is in a locked state, the first connecting rod and the second connecting rod are parallel to each other, so that the first connecting member 3124 is tightened, and the first connecting rod pulls the fourth end 31252, and the third end 31251 pushes the locking tongue 32 to insert into the limiting structure 41; when the fuselage 4 is in an unlocked state, the first connecting rod and the second connecting rod rotate relative to each other to a cross setting, so that the first connecting member 3124 is relaxed to reduce the pulling force of the first connecting rod on the fourth end 31252, so that the rotating member 3125 is driven by the first elastic member 311 to rotate to the fourth end 31252 to abut the stop surface 42.

[0091] In some embodiments, a receiving cavity 21 and a first through hole 22 connected to the receiving cavity 21 are provided on the adapter 2, and the locking tongue 32 and the first elastic member 311 are both accommodated in the receiving cavity 21; when the fuselage 4 is in a locked state, the limiting structure 41 is aligned with the first through hole 22, and the locking tongue 32 passes through the first through hole 22 and is plugged into the limiting structure 41.

[0092] In the above embodiment, the accommodating cavity 21 and the first penetration hole 22 can define the position of the locking tongue 32 and guide the moving direction of the locking tongue 32 .

[0093] Please refer to Figure 4 ,exist Figures 1 to 10In the illustrated embodiment, the accommodating cavity 21 includes a first cavity 211 and a second cavity 212 that are interconnected, the extension direction of the first cavity 211 is parallel to the sliding direction of the first driving member 3121, the extension direction of the second cavity 212 is parallel to the sliding direction of the second driving member 3122, the first penetration hole 22 is connected to the first cavity 211, and the adapter 2 is further provided with a fourth penetration hole 27 that is connected to the second cavity 212. The locking tongue 32, the first elastic member 311, the second elastic member 3123 and the first driving member 3121 are all accommodated in the first cavity 211, a part of the second driving member 3122 is accommodated in the first cavity 211, another part of the second driving member 3122 is accommodated in the second cavity 212, and another part of the second driving member 3122 can pass through the fourth penetration hole 27 to protrude from the accommodating cavity 21. The first cavity 211 can limit the position of the first driving member 3121 and guide the sliding direction of the first driving member 3121; the first cavity 211 and the fourth hole 27 can limit the position of the second driving member 3122 and guide the sliding direction of the second driving member 3122.

[0094] Please refer to Fig.12 ,exist Figures 11 to 16 In the embodiment shown, the accommodating cavity 21 is a cavity with one end open and the other end closed, and the first through hole 22 is provided at the closed end. The rotating member 3125 is arranged at the opening of the accommodating cavity 21 so that the rotating member 3125 supports the locking tongue 32 to prevent the locking tongue 32 from escaping from the accommodating cavity 21.

[0095] Please refer to Fig.12 In some embodiments, the body 4 has a stop surface 42. When the body 4 is in a locked state, the first connecting member 3124 can drive the rotating member 3125 to rotate to the fourth end 31252 away from the stop surface 42; when the body 4 is in an unlocked state, driven by the first elastic member 311, the rotating member 3125 can rotate to the fourth end 31252 to abut against the stop surface 42.

[0096] It should be noted that the accommodating chamber 21 is a cavity with one end open and the other end closed, and the first through hole 22 is provided at the closed end. The third end 31251 on the rotating member 3125 is arranged at the opening of the accommodating chamber 21, and the third end 31251 on the rotating member 3125 supports the locking tongue 32, which can prevent the locking tongue 32 from escaping from the accommodating chamber 21. If the rotating member 3125 rotates too much when the fuselage 4 is in the unlocked state, the rotating member 3125 will rotate until the third end 31251 no longer contacts the locking tongue 32, so that the locking tongue 32 loses support and escaping from the accommodating chamber 21. The above embodiment can limit the final position of the rotating member 3125 during the unlocking process of the fuselage 4 by setting the stop surface 42, and can limit the position of the rotating member 3125 to avoid the rotating member 3125 rotating too much, resulting in the third end 31251 no longer supporting the locking tongue 32.

[0097] Please refer to Figure 4 In some embodiments, the locking tongue 32 includes an inserting portion 321 and a stop portion 322. In the radial direction of the first through hole 22, the stop portion 322 protrudes from the inserting portion 321. The first elastic member 311 is sleeved on the inserting portion 321, and one end of the first elastic member 311 is abutted against the stop portion 322, and the other end of the first elastic member 311 is abutted against the inner wall of the accommodating cavity 21.

[0098] In the above embodiment, when the body 4 is in the unlocked state, the first elastic member 311 is in the natural state. When the push group 312 pushes the stopper 322 to move and inserts the plug-in portion 321 into the limiting structure 41, the first elastic member 311 is squeezed by the stopper 322 and the inner wall of the accommodating cavity 21, so that the first elastic member 311 generates elastic force and applies it to the stopper 322. When the body 4 is in the unlocked state, the first elastic member 311 returns to the natural state. During the process of the first elastic member 311 returning to the natural state, the elastic force generated by the first elastic member 311 pushes the stopper 322 to drive the lock tongue 32 to move as a whole until the plug-in portion 321 is separated from the limiting structure 41.

[0099] exist Figures 17 to 25 In the illustrated embodiment, when the body 4 is in the locked state, the first elastic member 311 is in a natural state, and when the body 4 is in the unlocked state, the first elastic member 311 is in a compressed state.

[0100] When the body 4 is in the unlocked state, the push group 312 drives the lock tongue 32 to move away from the limiting structure 41, the lock tongue 32 squeezes the first elastic member 311, and the elastic force generated by the first elastic member 311 is also applied to the lock tongue 32. When the body 4 is in the locked state, the first elastic member 311 returns to the natural state. During the process of the first elastic member 311 returning to the natural state, the elastic force generated by the first elastic member 311 can drive the lock tongue 32 to move to the insertion limiting structure 41.

[0101] Please refer to Figures 17 to 25 In some embodiments, the adapter 2 is provided with a first chamber 23, a second chamber 24, a second through hole 25 connected to the first chamber 23, and a third through hole 26 connected to the second chamber 24; the push group 312 includes a third driving member 3126, a third elastic member 3127 and a second connecting member 3128, the third driving member 3126 and the third elastic member 3127 are both accommodated in the second chamber 24, the locking tongue 32 and the first elastic member 311 are both accommodated in the first chamber 23, and the second connecting member 3128 is connected to the third driving member 3126 and the locking tongue 32 respectively. When the fuselage 4 is in a locked state (such as Fig.18 and Fig.19 As shown, Fig.21 and Fig. 22As shown in FIG. 2 , the adapter 2 rotates relative to the chassis 1, so that the end of a portion of the third driving member 3126 that passes through the third penetration hole 26 abuts against the limiting surface 11 on the chassis 1, and a portion of the third driving member 3126 is received in the second chamber 24, and the first elastic member 311 pushes the locking tongue 32 to pass through the second penetration hole 25 and is inserted into the limiting structure 41; when the body 4 is in the unlocked state (as shown in FIG. 2 ), the adapter 2 rotates relative to the chassis 1, so that the end of the portion of the third driving member 3126 that passes through the third penetration hole 26 abuts against the limiting surface 11 on the chassis 1, and the portion of the third driving member 3126 is received in the second chamber 24, and the first elastic member 311 pushes the locking tongue 32 to pass through the second penetration hole 25 and is Figure 22 to Figure 25 As shown in the figure, the adapter 2 rotates relative to the chassis 1, so that the third driving member 3126 moves to the point where the third driving member 3126 is disengaged from the limiting surface 11, and the third elastic member 3127 pushes the third driving member 3126, so that the third driving member 3126 drives the second connecting member 3128 and the locking tongue 32 to move, and the locking tongue 32 moves to the point where it is disengaged from the limiting structure 41 and squeezes the first elastic member 311.

[0102] In the above embodiment, the second connecting member 3128 is connected to the third driving member 3126 and the locking tongue 32 respectively, and can maintain the distance between the third driving member 3126 and the locking tongue 32, so that the third driving member 3126 and the locking tongue 32 can move together.

[0103] For example, the body 4 is in the unlocked state as the initial state, at this time, the third elastic member 3127 is in a compressed state, and the third elastic member 3127 applies a first force to the third driving member 3126, the first force drives the third driving member 3126 away from the limiting structure 41, the first elastic member 311 is in a compressed state, and the first elastic member 311 applies a second force to the lock tongue 32, the second force drives the lock tongue 32 close to the limiting structure 41. Since the second connecting member 3128 is connected to the third driving member 3126 and the lock tongue 32 respectively, the second connecting member 3128 can apply a pulling force to the third driving member 3126 and the lock tongue 32 respectively, so as to prevent the third driving member 3126 and the lock tongue 32 from moving away from each other. Among them, the first force is greater than the second force, so that the lock tongue 32 can move into the first chamber 23 under the pulling force of the second connecting member 3128 to break away from the limiting structure 41. During the locking process, the adapter 2 rotates relative to the chassis 1, so that the third driving member 3126 is pressed against the limiting surface 11 and moves into the second chamber 24, and the third driving member 3126 further squeezes the third elastic member 3127 to increase the first force; the movement of the third driving member 3126 into the second chamber 24 can reduce the pulling force applied by the second connecting member 3128 to the lock tongue 32, so that the lock tongue 32 can be inserted into the limiting structure 41 under the drive of the first elastic member 311, and the second force will be reduced until the first elastic member 311 returns to the natural state (the second force is zero); during the unlocking process, the adapter 2 rotates relative to the chassis 1, so that the third driving member 3126 disengages from the limiting surface 11, and the third driving member 3126 protrudes from the second chamber 24 and away from the limiting structure 41 under the push of the first force applied by the third elastic member 3127. The protrusion of the third driving member 3126 from the second chamber 24 can increase the pulling force of the second connecting member 3128 on the locking tongue 32, so that the locking tongue 32 moves into the first chamber 23 under the pulling force of the second connecting member 3128 to disengage from the limiting structure 41, and the locking tongue 32 squeezes the first elastic member 311.

[0104] In some embodiments, the second connecting member 3128 includes a second pull rope, the locking tongue 32 and the third driving member 3126 are respectively connected to the second pull rope, and the distance between the locking tongue 32 and the third driving member 3126 is equal to the length of the second pull rope. During the reciprocating movement of the third driving member 3126 and the locking tongue 32, the position of the second pull rope will change, and the shape of the second pull rope can be changed so that the second pull rope can adapt to structures at different positions.

[0105] Please refer to Fig. 20 In some embodiments, the adapter 2 is further provided with a connecting chamber 28 connected to the first chamber 23 and the second chamber 24 , and the second connecting member 3128 is accommodated in the connecting chamber 28 .

[0106] The connecting chamber 28 can limit the structure of the second connecting member 3128 and prevent the second connecting member 3128 from interfering with the operation of other components in the adapter 2 or the chassis 1 .

[0107] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A cleaning device, characterized in that: include: A bottom plate (1) for cleaning the surface to be cleaned; An adapter (2) is mounted on the chassis (1) so as to be rotatable about a first direction; A locking mechanism (3) is arranged in the adapter (2), and the locking mechanism (3) comprises a driving assembly (31) and a locking tongue (32); The body (4) is provided with a limiting structure (41), the body (4) is rotatably mounted on the adapter (2) about a second direction, the first direction and the second direction intersect, the axial direction of the body (4) intersects with the second direction, and the body (4) is configured to have a locked state and an unlocked state in response to an angle between the body and the surface to be cleaned; wherein, When the body (4) is in a locked state, the locking tongue (32) is driven by the driving assembly (31) to be inserted into the limiting structure (41); when the body (4) is in an unlocked state, the locking tongue (32) is driven by the driving assembly (31) to be disengaged from the limiting structure (41).

2. The cleaning device according to claim 1, characterized in that The driving assembly (31) comprises a pushing group (312) and a first elastic member (311); when the body (4) is in a locked state, the first elastic member (311) or the pushing group (312) drives the locking tongue (32) to be inserted into the limiting structure (41); when the body (4) is in an unlocked state, the first elastic member (311) drives the locking tongue (32) to be separated from the limiting structure (41).

3. The cleaning device according to claim 2, characterized in that: When the body (4) is in a locked state, the first elastic member (311) is in a compressed state; when the body (4) is in an unlocked state, the first elastic member (311) is in a natural state.

4. The cleaning device according to claim 3, characterized in that: The pushing group (312) comprises a first driving member (3121) and a second driving member (3122), the first driving member (3121) and the second driving member (3122) can be slidably arranged in the adapter (2), the second driving member (3122) can push the first driving member (3121) to slide, and the first driving member (3121) is connected to the locking tongue (32); When the body (4) is in a locked state, one end of the second driving member (3122) abuts against the limiting surface (11) on the chassis (1), and the other end abuts against the first driving member (3121), and the locking tongue (32) presses the first elastic member (311); when the body (4) is in an unlocked state, the one end of the second driving member (3122) is separated from the limiting surface (11), and the other end of the second driving member (3122) abuts against the first driving member (3121).

5. The cleaning device according to claim 4, characterized in that: The first driving member (3121) is provided with a driving inclined surface (31221), and the second driving member (3122) is abutted against the driving inclined surface (31221); and / or the second driving member (3122) is provided with a driving inclined surface (31221), and the first driving member (3121) is abutted against the driving inclined surface (31221); The driving inclined surface (31221) comprises a first end (31222) and a second end (31223) which are arranged opposite to each other, the first end (31222) is closer to the locking tongue (32) than the second end (31223), and the first end (31222) is closer to the limiting surface (11) than the second end (31223).

6. The cleaning device according to claim 4, characterized in that: The pushing group (312) further comprises a second elastic member (3123), one end of the second elastic member (3123) being connected to the first driving member (3121), and the other end of the second elastic member (3123) being connected to the locking tongue (32).

7. The cleaning device according to claim 3, characterized in that: The pushing group (312) comprises a first connecting member (3124) and a rotating member (3125), wherein the rotating member (3125) is rotatably arranged on the adapter (2), and the rotating member (3125) comprises a third end (31251) and a fourth end (31252) located on both sides of its rotation axis, wherein the third end (31251) is abutted against the locking tongue (32), and the first connecting member (3124) is respectively connected to the fourth end (31252) and the chassis (1); When the body (4) is in a locked state, the first connecting member (3124) drives the rotating member (3125) to rotate, so that the third end (31251) pushes the locking tongue (32) to insert into the limiting structure (41), and the locking tongue (32) squeezes the first elastic member (311); when the body (4) is in an unlocked state, the first elastic member (311) drives the locking tongue (32) to disengage from the limiting structure (41).

8. The cleaning device according to claim 7, characterized in that: The first connecting member (3124) includes a first pull rope, which is respectively connected to the fourth end (31252) and the chassis (1), and when the fuselage (4) is in a locked state, the distance between the connection between the first pull rope and the fourth end (31252) and the connection between the first pull rope and the chassis (1) is equal to the length of the first pull rope; when the fuselage (4) is in an unlocked state, the distance between the connection between the first pull rope and the fourth end (31252) and the connection between the first pull rope and the chassis (1) is less than the length of the first pull rope.

9. The cleaning device according to claim 7, characterized in that: The body (4) has a stop surface (42); when the body (4) is in a locked state, the first connecting member (3124) can drive the rotating member (3125) to rotate to the fourth end (31252) away from the stop surface (42); when the body (4) is in an unlocked state, driven by the first elastic member (311), the rotating member (3125) can rotate to the fourth end (31252) to abut against the stop surface (42).

10. The cleaning device according to any one of claims 3 to 9, characterized in that The adapter (2) is provided with a receiving cavity (21) and a first through hole (22) connected to the receiving cavity (21); the locking tongue (32) and the first elastic member (311) are both accommodated in the receiving cavity (21); when the body (4) is in a locked state, the limiting structure (41) is aligned with the first through hole (22), and the locking tongue (32) passes through the first through hole (22) and is plugged into the limiting structure (41).

11. The cleaning device according to claim 10, characterized in that The locking tongue (32) comprises an inserting portion (321) and a stopping portion (322); in the radial direction of the first penetration hole (22), the stopping portion (322) protrudes from the inserting portion (321); the first elastic member (311) is sleeved on the inserting portion (321), and one end of the first elastic member (311) abuts against the stopping portion (322), and the other end of the first elastic member (311) abuts against the inner wall of the accommodating cavity (21).

12. The cleaning device according to claim 2, characterized in that: When the body (4) is in a locked state, the first elastic member (311) is in a natural state, and when the body (4) is in an unlocked state, the first elastic member (311) is in a compressed state.

13. The cleaning device according to claim 12, characterized in that The adapter (2) is provided with a first chamber (23), a second chamber (24), a second through hole (25) connected to the first chamber (23), and a third through hole (26) connected to the second chamber (24); the pushing group (312) comprises a third driving member (3126), a third elastic member (3127) and a second connecting member (3128); the third driving member (3126) and the third elastic member (3127) are both accommodated in the second chamber (24); the locking tongue (32) and the first elastic member (311) are both accommodated in the first chamber (23); and the second connecting member (3128) is respectively connected to the third driving member (3126) and the locking tongue (32); When the body (4) is in a locked state, part of the third driving member (3126) passes through the third penetration hole (26) and abuts against the limiting surface (11) on the chassis (1), and part of the third driving member (3126) is accommodated in the second chamber (24), and the first elastic member (311) drives the locking tongue (32) to pass through the second penetration hole (25) and be plugged into the limiting structure (41); when the body (4) is in an unlocked state, the third driving member (3126) is separated from the limiting surface (11), and the third elastic member (3127) drives the third driving member (3126) to drive the locking tongue (32) to separate from the limiting structure (41), and the locking tongue (32) squeezes the first elastic member (311).

Images