Flat mop

Abstract

The invention provides a flat mop, which comprises a mop plate, a mop rod, a rotation stopping unit, an unlocking operation part and a state locking unit, the mop plate comprises a side plate of a main plate, the mop plate has an unfolded state and a folded state, the rotation stopping unit comprises a rotation stopping slot and a rotation stopping unit, the rotation stopping slot is arranged on the side plate, a linkage mechanism is arranged on the first main plate, and the unlocking operation part is arranged on the linkage mechanism. Comprising an unlocking operation part, a rotation stopping pin, a linkage mechanism and a reset elastic body, and the unlocking operation part is suitable for driving the rotation stopping plug pin to retract inwards to retreat from the rotation stopping groove directly or through the linkage mechanism; the reset elastic body is suitable for driving the rotation stopping pin to extend outwards into the rotation stopping groove through the linkage mechanism. The state locking unit temporarily limits the rotation stopping pin to retreat from the rotation stopping groove. By arranging the rotation stopping unit and the state locking unit, state conversion from unfolding to folding can be completed through single pressing, automatic resetting and locking are achieved after folding, and the operation process is simplified.

Description

Technical Field

[0001] The present invention belongs to the technical field of cleaning supplies, and particularly relates to a flat mop. Background Art

[0002] Existing foldable flat mops have many defects in their structural designs. The folding mechanisms of some mops are poorly stable, and the mop board is prone to accidental folding during use, affecting the cleaning efficiency and user experience; for some other mops, multiple cumbersome steps are required for folding or unfolding operations, making it inconvenient for users to operate; moreover, most mops lack reliable locking and anti-rotation mechanisms, and cannot effectively fix the mop board in the unfolded state and the folded state, resulting in a large occupied space during storage and the mop board shaking during use. These problems limit the convenience and practicality of flat mops in users' daily lives. Summary of the Invention

[0003] Aiming at the defects of the above-mentioned existing technologies, the purpose of the present invention is to provide a flat mop to meet the needs of users.

[0004] To achieve the above purpose, the present invention provides a flat mop, including a mop board, the mop board includes a main board and side boards pivotally connected to both sides of the main board, the mop board has a flattened state and a folded state, the side boards include anti-rotation grooves and reset guiding surfaces, the anti-rotation grooves include open ends facing the main board, one end of the reset guiding surface extends towards the open ends of the anti-rotation grooves, and further includes

[0005] An anti-rotation unit, which is arranged on the main board, includes two anti-rotation pins arranged back to back, a linkage mechanism and an elastic reset member. The two anti-rotation pins are respectively adapted to be inserted into the corresponding anti-rotation grooves to limit the folding of the side boards, and thus the mop board is locked in the flattened state. The linkage mechanism is adapted to realize synchronous reverse movement in response to an external operating force to drive the two anti-rotation pins to synchronously withdraw from the anti-rotation grooves to release the lock, and the reset elastic body is adapted to drive the two anti-rotation pins to synchronously enter the anti-rotation grooves through the linkage mechanism to re-lock;

[0006] An unlocking operation part, which is adapted to receive an external operating force; the unlocking operation part is adapted to simultaneously drive the two anti-rotation pins to withdraw from the anti-rotation grooves through the linkage mechanism; or, the unlocking operation part is adapted to drive one of the anti-rotation pins to withdraw from the anti-rotation groove, and one of the anti-rotation grooves simultaneously drives the other anti-rotation pin to withdraw from the anti-rotation groove through the linkage mechanism;

[0007] A state locking unit, including a first locking part and a second locking part, the first locking part is arranged on the side board, the first locking part moves synchronously with the side board, in the flattened state, the first locking part is in a standby position,

[0008] During the unlocking process of the bidirectional locking unit, the second locking portion is adapted to follow the linkage mechanism to move to abut against the first locking portion in the standby position, so as to temporarily restrict the anti-rotation pin from remaining out of the anti-rotation groove, thereby enabling the side panel to be folded;

[0009] When the side plate is folded upward to reset, the guide reset surface is suitable for guiding the anti-rotation pin to align with the open end of the anti-rotation groove.

[0010] Preferably, the flat mop further comprises an unlocking operation part adapted to receive an external operating force, the linkage mechanism comprises a first transmission unit and a second transmission unit, the unlocking operation part is arranged on the main board, and the unlocking operation part is adapted to directly contact the first transmission unit and the second transmission unit at the same time to transmit the external operating force.

[0011] As a preferred embodiment, the first transmission unit comprises a transmission body, a first transmission arm and a first driven arm connected in sequence, and the second transmission unit comprises a transmission body, a second transmission arm and a second driven arm connected in sequence, wherein:

[0012] The unlocking operation part includes two symmetrically arranged driving inclined planes, the first transmission unit includes a first driven inclined plane, and the second transmission unit includes a second driven transmission inclined plane. The two driving inclined planes are respectively slidably matched with the first driven inclined plane and the second driven inclined plane, so as to convert the vertical operating force into the horizontal driving force, realize high-efficiency force transmission, reduce the operating resistance, and make the unlocking process easier and smoother.

[0013] Alternatively, the unlocking operating part includes a driving gear, the first transmission unit includes a first driven rack, the second transmission unit includes a second driven rack, and the driving gear is respectively engaged with the first driven gear and the second driven gear, thereby converting the circular motion of the unlocking operating part into the linear motion of the linkage mechanism, providing a precise transmission ratio, ensuring the synchronous movement of the stop pins on both sides, and improving the consistency and reliability of unlocking and locking.

[0014] Preferably: the flat mop also includes an unlocking operation part suitable for receiving an external operating force, the linkage mechanism includes two transmission units, the two transmission units are centrally symmetrical about the center of the main board, at least one side panel is provided with the unlocking operation part, the unlocking operation part is suitable for transmitting the external operating force to one of the two transmission units through the stop pin, the two transmission units are transmission-connected, and a variety of operating modes are provided. Users can choose the unlocking operation part on any side panel to unlock according to actual needs, thereby improving flexibility of use.

[0015] As a preferred embodiment, the transmission unit comprises a transmission body, a first transmission arm and a second transmission arm extending outwardly from one end of the transmission body, a first driven arm connected to the first transmission arm, and a second driven arm connected to the second transmission arm, wherein:

[0016] The first follower arm includes a first rack, the second follower arm includes a second rack, the first rack and the second rack are meshed with the same transmission gear, and the transmission gear is pivotally connected to the main board; or, the second follower arm and the second follower arm are pivotally connected to the two ends of the same transmission connecting rod, and the transmission connecting rod is pivotally connected to the main board.

[0017] Preferably, the drag plate includes a mid-long axis l arranged along its length direction and a mid-short axis h arranged along its width direction, the side plate rotates around a pivot axis α, the pivot axis α is arranged parallel to one of the mid-long axis l and the mid-short axis h, the stop pin shaft is arranged perpendicular to the pivot axis α, and the unlocking operating portion is suitable for simultaneously driving the two transmission units to synchronously move toward the center along a direction perpendicular to the pivot axis α.

[0018] The first follower arm is arranged in a direction perpendicular to the pivot axis α, and the second follower arm is arranged parallel to the first follower arm. The first transmission arm and the second transmission arm are suitable for guiding the first follower arm and the second follower arm to be staggered along the extension direction of the pivot axis α, thereby optimizing the transmission path, avoiding interference between transmission units, making the structure more compact, and ensuring the effectiveness of force transmission.

[0019] Preferably, the first rack and the second rack are arranged facing each other.

[0020] As a preferred embodiment: in the same side plate, the unlocking operation part is connected to the anti-rotation pin through a transmission slider, and the unlocking operation part is suitable for driving the transmission slider to slide into the anti-rotation groove and push open the anti-rotation pin, wherein:

[0021] The unlocking operation part includes a driving bevel, and the transmission slider includes a driven bevel suitable for matching the driving bevel, or the unlocking operation part includes a driving gear and a pressing handle extending tangentially along the driving gear, and the transmission slider includes a driven rack suitable for matching the driving gear.

[0022] As a preferred embodiment: in the same side panel, the unlocking operating part is transmission connected to the anti-rotation pin through a connecting rod assembly, the connecting rod assembly includes a first connecting rod and a second connecting rod, one end of the first connecting rod is abutted against the side panel, and the other end of the first connecting rod is pivotally connected to the second connecting rod, and the unlocking operating part applies force to the pivotal joint of the first connecting rod and the second connecting rod to drive the free end of the second connecting rod to extend into the anti-rotation groove and push open the anti-rotation pin.

[0023] Preferably, the state locking unit includes a locking spring. The transmission main body includes a second spring groove disposed perpendicular to its telescopic direction. The second spring groove includes an open end and a closed end. The second locking portion is telescopically disposed in the second spring groove. The locking spring abuts between the second locking portion and the closed end of the second spring groove.

[0024] The first locking portion includes an integrally formed first locking groove and a first locking surface. The second locking portion includes an integrally formed first locking buckle and a second locking surface. In the flattened state:

[0025] When the anti-rotation groove is inserted into the anti-rotation groove, the first locking groove engages with the first locking buckle. The second locking portion is adapted to move with the linkage mechanism so that the first locking groove is separated from the first locking buckle. The locking spring then drives the second locking portion to move until the first stop surface abuts against the second stop surface.

[0026] Preferably, the first locking groove includes a second guiding inclined surface, and the first locking buckle includes a second mating inclined surface. The second guiding inclined surface and the second mating inclined surface are slidably mated to guide the engagement or separation of the first locking groove and the first locking buckle. The second guiding inclined surface and the first stop surface are connected by a transition arc surface. When the second locking portion abuts against the transition arc surface, the anti-rotation pin completely exits the anti-rotation groove, enabling the second locking portion to smoothly transition to the position where it abuts against the first stop surface after disengaging from the first locking groove, ensuring the smoothness of the state conversion.

[0027] Preferably, the main board includes a first bottom plate, a first cover plate, and the main cavity formed by enclosing the two. The anti-rotation main body is received in the first cavity.

[0028] Preferably, the transmission main body includes a first spring groove adapted to receive the reset elastic body. The reset elastic body is an anti-rotation spring. The first spring groove includes at least one closed end. Two baffles extend from the first cover plate towards the first bottom plate. The baffles extend into the first spring groove. The two ends of the anti-rotation spring respectively abut against the closed end of the first spring groove and the baffle.

[0029] Preferably, the first cover plate includes a guiding plate adapted to guide the moving direction of the transmission main body. The guiding plate is clamped on both sides of the transmission main body. The guiding plate is disposed perpendicular to the extending direction of the pivot axis α.

[0030] Preferably, the first cover plate includes a second limiting plate adapted to limit the transmission main body from disengaging. The second limiting plate is provided with an activity groove for the telescopic movement of the anti-rotation pin. In the unfolded state, the activity groove is aligned with the open end of the anti-rotation groove so that the anti-rotation pin can be accurately inserted.

[0031] Preferably, the side plate includes two pivoting portions, and the first cover plate includes a pivoting bracket adapted to support the pivoting portions.

[0032] Preferably, a first stop groove is provided at one end of the side plate adjacent to the main board. The first cover plate includes a first limiting plate, and the first limiting plate is inserted into the first stop groove to indicate that the side plate is flipped upward in place.

[0033] Preferably, the anti-rotation pin shaft includes a first guiding inclined surface provided on its lower surface. During the process of the side plate being flipped upward, the first guiding inclined surface is in sliding cooperation with the reset guiding inclined surface to guide the anti-rotation pin to align with the anti-rotation groove.

[0034] Preferably, the side plate includes a second bottom plate and a second cover plate. The second cover plate is formed with two guiding enclosing plates for the unlocking operation part to move up and down. The guiding enclosing plates are formed with limiting notches adapted to limit the offset of the link assembly. The second cover plate further includes a guiding inclined surface adapted to guide the opening or closing direction of the second link.

[0035] A folding control method for a flat mop as described above

[0036] The steps of folding the flat mop are as follows:

[0037] S11: Apply an external operating force to the unlocking operation part to drive the linkage mechanism to move synchronously in the reverse direction, driving two oppositely arranged anti-rotation pins to synchronously withdraw from the anti-rotation grooves of the side plates, releasing the locking of the side plates;

[0038] Or, apply an external operating force to the unlocking operation part to drive one anti-rotation pin to withdraw from the anti-rotation groove of the corresponding side plate. When this anti-rotation pin withdraws from the anti-rotation groove, it drives the two transmission units to move synchronously in the reverse direction, driving the other anti-rotation pin to synchronously withdraw from the anti-rotation groove, releasing the locking of the side plates;

[0039] S12: The second locking part follows the linkage mechanism to move to temporarily abut against the first locking part in the standby position, temporarily restricting the anti-rotation pin to remain out of the anti-rotation groove. At this time, the side plate can be flipped downward under the action of gravity to realize the folding of the flat mop;

[0040] S13: The downward flipping of the side plate drives the first locking part to deviate from the standby position, and the second locking part separates from the first locking part, where:

[0041] The elastic resetting member drives the anti-rotation pin and the unlocking operation part to reset through the linkage mechanism;

[0042] Or, the unlocking operation part maintains the state after being acted by the external operating force, and the elastic resetting member drives the anti-rotation pin to reset through the linkage mechanism;

[0043] The process of flattening the flat mop is as follows:

[0044] S21: Apply an external operating force to the main board to cause the side plates to flip upward to a flattened state;

[0045] S22: The guiding and resetting surface is adapted to guide the anti-rotation pins to align with the open ends of the anti-rotation slots, and the reset elastic body drives the two anti-rotation pins to synchronously enter the corresponding anti-rotation slots through the linkage mechanism, and the mop plate is re-locked in the flattened state;

[0046] Or, the guiding and resetting surface is adapted to guide the anti-rotation pins to align with the open ends of the anti-rotation slots, and the reset elastic body drives the two anti-rotation pins to synchronously enter the corresponding anti-rotation slots through the linkage mechanism, and the mop plate is re-locked in the flattened state. While one anti-rotation pin exits the anti-rotation slot, it drives the unlocking operation part to reset.

[0047] The beneficial effects of the present invention are:

[0048] 1. Through the linkage mechanism, the synchronous reverse movement of the two opposite anti-rotation pins is realized, ensuring the consistency of unlocking and locking of the two side plates, and improving the operation stability and reliability. A state locking unit is added. After unlocking, the first locking part and the second locking part are temporarily abutted to ensure that the anti-rotation pins are temporarily kept in a disengaged state, and there is no need to continuously apply force to the unlocking operation part. The state conversion from flattening to folding can be completed with a single operation, and it is automatically reset and locked after folding, simplifying the operation process.

[0049] 3. The first locking group cooperates to achieve automatic locking in the unfolded state, restricting the downward folding of the side plates and ensuring the stable structure of the mop plate during the cleaning process. The second locking group takes effect after unlocking, keeping the anti-rotation main body in the second state, facilitating the switching of the mop plate from the unfolded state to the folded state, and avoiding the interference of the reset of the locking mechanism during the switching process.

[0050] 4. The unlocking operation part drives the two side anti-rotation pins to synchronously exit the anti-rotation slots through transmission structures such as transmission sliders, connecting rod assemblies or gear racks. The operation is labor-saving and the response is rapid. The bilateral unlocking can be completed with a single press. The symmetric transmission design (such as meshing gears, transmission connecting rods) ensures the consistent movement of the two side transmission units, avoiding jamming or failure caused by uneven force, and improving the smoothness of state switching. Description of the Drawings

[0051] Figure 1 A schematic structural diagram (unfolded state) of a flat mop provided for Embodiment 1.

[0052] Figure 2 A sectional view and a partially enlarged schematic view of a flat mop provided for Embodiment 1.

[0053] Figure 3 An internal top view and a partially enlarged view of the main cavity provided for Embodiment 1 (first state).

[0054] Figure 4 Internal top view and partial enlarged view of the main cavity provided for Example 1 (second state).

[0055] Figure 5 Exploded top view of the anti-rotation main body provided for Example 1.

[0056] Figure 6 Schematic structural diagram of the side plate provided for Example 1.

[0057] Figure 7 Schematic structural diagram of the first cover plate for Example 1.

[0058] Figure 8 Schematic structural diagram of the single-button flat mop provided for Example 1 (excluding the first cover plate).

[0059] Figure 9 Exploded top view of the anti-rotation main body provided for Example 5.

[0060] Figure 10 Internal top view and partial enlarged view of the main cavity provided for Example 5 (first state).

[0061] Figure 11 Internal top view and partial enlarged view of the main cavity provided for Example 5 (second state).

[0062] Figure 12 Schematic structural diagram of the single-button flat mop provided for Example 5 (excluding the first cover plate).

[0063] Figure 13 Schematic structural diagram of a flat mop provided for Example 6 (expanded state).

[0064] Figure 14 Cross-sectional view and partial enlarged schematic diagram of a flat mop provided for Example 6.

[0065] Figure 15 Schematic structural diagram of the side plate provided for Example 6.

[0066] Figure 16 Schematic structural diagram of the single-button flat mop provided for Example 6.

[0067] Figure 17 Schematic structural diagram of the single-button flat mop provided for Example 6 (excluding the first cover plate).

[0068] Figure 18 Cross-sectional view and partial enlarged schematic diagram of a flat mop provided for Example 7.

[0069] Figure 19Schematic structural diagram of the side plate provided for Embodiment 7.

[0070] Figure 20 Schematic structural diagram of the second cover plate provided for Embodiment 7.

[0071] Figure 21 Schematic structural diagram of a flat mop provided for Embodiment 3 (expanded state).

[0072] Figure 22 Top view of the anti-rotation main body provided for Embodiment 3.

[0073] Figure 23 Front view of the anti-rotation main body in an exploded state provided for Embodiment 3.

[0074] Figure 24 Schematic structural diagram of a flat mop provided for Embodiment 3 (folded state).

[0075] In the figure: 1. Mop board; 11. Main board; 111. Main cavity; 112. First bottom plate; 113. First cover plate; 114. Baffle; 115. Pivot bracket; 116. First limit plate; 117. Second limit plate; 1171. Activity groove; 118. Guide plate; 12. Side plate; 121. Reset guide inclined plane; 122. Pivot part; 123. First stop groove; 125. Second cover plate; 126. Guide surrounding plate; 127. Limit notch; 128. Guide inclined plane; 2. Mop rod; Anti-rotation groove; 32. Two-way locking unit; 33. Unlock operation part; 331. Driving inclined plane; 332. Driving gear; 333. Pressing handle; 34. Anti-rotation plug; 341. First guide inclined plane; 35. Transmission main body; 351. First spring groove; 352. Second spring groove; 353. Limit groove; 354. First transmission unit; 355. Second transmission unit; 36. Transmission unit; 361. First transmission arm; 362. First driven arm; 363. First rack; 371. Second transmission arm; 372. Second driven arm; 373. Second rack; 38. Reset elastic part; 391. Transmission gear; 392. Transmission connecting rod; 41. First locking part; 411. First locking groove; 412. Second guide inclined plane; 413. First stop surface; 414. Transition arc surface; 42. Second locking part; 421. First locking buckle; 422. Second matching inclined plane; 423. Second stop surface; 424. Limit part; 43. Locking spring; 51. Transmission slider; 511. Driven inclined plane; 512. Driven rack; 52. Link assembly; 521. First link; 522. Second link; 53. Link contact post. Detailed implementation manners

[0076] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0077] Here, it should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution of the present invention are shown in the drawings, while other details less relevant to the present invention are omitted.

[0078] In addition, it should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0079] Embodiment 1

[0080] As Figure 1-8 described, a flat mop, compared with Embodiment 1, is different in that it includes a mop plate 1 and a mop rod 2. The mop plate 1 includes a main plate 11 adapted to pivotally connect the mop rod 2 and side plates 12 pivotally connected to both sides of the main plate 11. The main plate 11 includes a first bottom plate 112, a first cover plate 113, and a main cavity 111 formed by enclosing the two. The mop plate 1 has a flattened state and a folded state, wherein: in the flattened state, the two side plates 12 remain flattened relative to the main plate 11; in the folded state, the side plates 12 are folded downward, and the side plates 12 are folded to be perpendicular to the main plate 11. The mop plate 1 includes a medium-long axis l provided along its length direction and a medium-short axis h provided along its width direction, and the side plates 12 rotate around a pivot axis α.

[0081] In this embodiment, the side plate 12 includes a rotation stopping groove 31, and the rotation stopping groove 31 has an open end facing the main plate 11. The main plate 11 is provided with a rotation stopping unit 32 and an unlocking operation part 33 adapted to receive an external operating force. The rotation stopping unit 32 includes two rotation stopping pins 34 arranged in opposite directions, a linkage mechanism, and an elastic resetting member 38. The two rotation stopping pins 34 are adapted to be respectively inserted into the corresponding rotation stopping grooves 31 to limit the folding of the side plates 12, and thus the mop plate 1 is locked in the flattened state. The reset elastic body 38 is adapted to drive the two rotation stopping pins 34 to synchronously enter the rotation stopping grooves 31 through the linkage mechanism to re-lock. The pivot axis α is arranged parallel to the medium-short axis h, and the rotation stopping pins 34 are perpendicular to the pivot axis α, that is, parallel to the medium-long axis l. The rotation stopping pin 34 includes a first guiding inclined surface 341 provided on its lower surface, and the side plate 12 is provided with a reset guiding inclined surface 121. During the upward flipping of the side plate 12, the first guiding inclined surface 341 and the reset guiding inclined surface 121 are slidably matched to guide the rotation stopping pin 34 to align with the rotation stopping groove 31.

[0082] In this embodiment, the linkage mechanism includes two transmission units 36, and the two transmission units 36 are centrally symmetrical about the center of the main board 11. The side panel 12 is provided with an unlocking operation part 33, and the unlocking operation part 33 is suitable for transmitting an external operating force to its corresponding transmission unit 36 through a stop pin 34. The two transmission units 36 are connected by transmission, providing a variety of operation modes. The user can select the unlocking operation part on any side panel to unlock according to actual needs, thereby improving the flexibility of use. The transmission unit 36 includes a transmission body 35, a first transmission arm 361 and a second transmission arm 371 extending outward from one end of the transmission body 35, a first driven arm 362 connected to the first transmission arm 361, and a second driven arm 372 connected to the second transmission arm 371.

[0083] In this embodiment, the first follower arm 362 includes a first rack 363, and the second follower arm 372 includes a second rack 373. The first rack 363 and the second rack 373 are meshed with the same transmission gear 391. The transmission gear 391 is pivotally connected to the main board 11 to ensure that the stop pins 34 on both sides move synchronously to avoid the transmission body 35 from being offset or stuck due to unilateral force.

[0084] In this embodiment, the flat mop further includes a state locking unit, which includes a first locking portion 41, a second locking portion 42 and a locking spring 43. The first locking portion 41 is arranged on the side plate 12, and the first locking portion 41 moves synchronously with the side plate 12. In the flattened state, the first locking portion 41 is in a standby position. The first locking portion 41 is integrally provided with a first locking groove 411 and a first stop surface 413. The transmission body 35 includes a second spring groove 352 arranged perpendicular to its telescopic direction. The second spring groove 352 includes an open end and a closed end. The second locking portion 42 is telescopically arranged in the second spring groove 352. The locking spring 43 abuts between the second locking portion 42 and the closed end of the second spring groove 352. The second locking portion 42 is integrally provided with a first locking buckle 421 and a second stop surface 423. The second locking portion 42 is symmetrically arranged on both sides of the transmission body 35. The first locking groove 411 includes a second guiding bevel 412, and the first locking buckle 421 includes a second matching bevel 422. During the unlocking process of the anti-rotation unit, the second guiding bevel 412 and the second matching bevel 422 are slidably matched to guide the first locking groove 411 and the first locking buckle 421 to close or separate. The second guiding bevel 412 and the first stop surface 413 are connected by a transition arc surface 414. When the second locking portion 42 abuts against the transition arc surface 414, the anti-rotation pin completely withdraws from the anti-rotation groove 31. When the second locking portion 42 is separated from the transition arc surface 414, the locking spring 43 is suitable for driving the second stop surface 423 in the second locking portion 42 to abut against the first stop surface 413 in the first locking portion 41, so as to temporarily limit the anti-rotation pin 34 from being separated from the anti-rotation groove 31, so that the side panel 12 can be folded.

[0085] Example 2

[0086] A folding control method for a flat mop as described in Embodiment 1, wherein:

[0087] The steps of folding the flat mop are as follows:

[0088] S211: Apply an external operating force to the unlocking operation part 33 provided on one side plate 12 to drive a detent pin 34 out of the detent groove 31 of the side plate 12 where it is located. When the detent pin 34 exits the detent groove 31, it drives two transmission units 36 to move synchronously in opposite directions, driving another detent pin 34 to exit the detent groove 31 synchronously, releasing the lock on the side plate 12;

[0089] S212: The second locking part 42 follows the linkage mechanism 32 to move to temporarily abut against the first locking part 41 in the standby position, temporarily restricting the detent pin 34 to remain disengaged from the detent groove 31. At this time, the side plate 12 can be folded downward under the action of gravity to achieve the folding of the flat mop;

[0090] S213: The downward folding of the side plate 12 drives the first locking part 41 to deviate from the standby position, the second locking part 42 separates from the first locking part 41, the unlocking operation part 33 maintains the state after being acted on by the external operating force, and the elastic reset part 38 drives the detent pin 34 to reset through the linkage mechanism.

[0091] The process of flattening the flat mop is as follows:

[0092] S221: Apply an external operating force to the main board 11 to turn the side plate 12 upward to flatten it;

[0093] S222: The guiding reset surface 121 is adapted to guide the detent pin 34 to align with the open end of the detent groove 31. The reset elastic body 38 drives the two detent pins 34 to enter the corresponding detent grooves 31 synchronously through the linkage mechanism 32, and the drag plate 1 is relocked in the flattened state. When one detent pin 34 enters the detent groove 31, it drives the unlocking operation part 33 to reset.

[0094] Embodiment 3

[0095] As Figures 21-24As described above, a flat mop, compared with Embodiment 1, is different in that the linkage mechanism includes a first transmission unit 354 and a second transmission unit 355 which are oppositely arranged. The first transmission unit 354 includes a transmission main body 35, a first transmission arm 361 and a first driven arm 362 which are connected in sequence. The second transmission unit 355 includes a transmission main body 35, a second transmission arm 371 and a second driven arm 372 which are connected in sequence. The anti-rotation pin 34 is connected to the transmission main body 35. The unlocking operation part 33 includes a symmetrically arranged first driving inclined surface 331 and a second driving inclined surface 332. The first driven arm 362 includes a first driven inclined surface 363. The second driven arm 372 includes a second driven inclined surface 373. The first driven inclined surface 363 abuts against the second driving inclined surface 332. The second driven inclined surface 373 also abuts against the second driving inclined surface 332. One unlocking operation part 33 is adapted to simultaneously drive the first transmission unit 354 and the second transmission unit 355 to move synchronously and reversely along the direction parallel to the medium long axis l to drive the two anti-rotation pins 34 to synchronously withdraw from the anti-rotation groove 31, thereby releasing the lock.

[0096] In this embodiment, the unlocking operation part 33 includes a symmetrically arranged first driving inclined surface 331 and a second driving inclined surface 332. The first driven arm 362 includes a first driven inclined surface 363. The second driven arm 372 includes a second driven inclined surface 373. The first driven inclined surface 363 abuts against the second driving inclined surface 332. The second driven inclined surface 373 also abuts against the second driving inclined surface 332. One unlocking operation part 33 is adapted to simultaneously drive the first transmission unit 36 and the second transmission unit 37 to move synchronously and approach each other along the direction parallel to the medium long axis l. The transmission main body 35 includes a first spring groove 351 adapted to receive the reset elastic body 38. The first spring groove 351 at least includes a closed end. Two baffles 114 extend from the first cover plate 113 towards the first bottom plate 112. The baffles 114 extend into the first spring groove 351. The two ends of the reset elastic body 38 respectively abut against the closed end of the first spring groove 351 and the baffle 114.

[0097] Embodiment 4

[0098] A folding control method for a flat mop as described in Embodiment 3, wherein:

[0099] The steps of folding the flat mop are as follows:

[0100] S111: Apply an external operating force to the unlocking operation part 33 provided on the main board 11 to drive the first transmission unit 354 and the second transmission unit 355 to move synchronously and reversely, driving the two oppositely arranged anti-rotation pins 34 to synchronously withdraw from the anti-rotation 31 groove of the side plate 12, thereby releasing the lock on the side plate 12;

[0101] S112: The second locking part 42 moves along with the linkage mechanism 32 to be temporarily abutted against the first locking part 41 in the standby position, temporarily restricting the rotation stopping pin 34 from disengaging from the rotation stopping groove 31. At this time, the side plate 12 can be folded downward under the action of gravity to realize the folding of the flat mop;

[0102] S113: The downward folding of the side plate 12 drives the first locking part 41 to deviate from the standby position, the second locking part 42 is separated from the first locking part 41, and the elastic resetting member 38 drives the rotation stopping pin 34 and the unlocking operation part 38 to reset through the linkage mechanism 32;

[0103] The process of flattening the flat mop is as follows:

[0104] S121: Apply an external operating force to the main board 11 to turn the side plate 12 upward to flatten it;

[0105] S122: The guiding reset surface 121 is adapted to guide the rotation stopping pin 34 to align with the open end of the rotation stopping groove 31, and the reset elastic body 38 drives the two rotation stopping pins 34 to synchronously enter the corresponding rotation stopping grooves 31 through the linkage mechanism 32, and the drag plate is relocked in the flattened state.

[0106] Embodiment 5

[0107] As Figures 9-11 described, a flat mop, compared with Embodiment 1, is different in that the second driven arm 372 and the second driven arm 372 are pivotally connected to both ends of the same transmission link 392, and the transmission link 392 is pivotally connected to the main board 11.

[0108] In other embodiments, as Figure 12 shown, only one of its side plates 12 is provided with an unlocking operation part 33.

[0109] Embodiment 6

[0110] As Figures 13-15 described, a flat mop, compared with Embodiment 1, is different in that in the same side plate 12, the unlocking operation part 33 is in transmission connection with the rotation stopping pin 34 through the transmission slider 51, and the unlocking operation part 33 is adapted to drive the transmission slider 51 to slide into the rotation stopping groove 31 and push open the rotation stopping pin 34. The unlocking operation part 33 includes a driving gear 332 and a pressing handle 333 extending along the tangent of the driving gear 332, and the transmission slider 51 includes a driven rack 512 adapted to cooperate with the driving gear 332. The meshing of the gear and the rack can ensure the accurate transmission of the operating force, avoid empty stroke or slipping, and improve the unlocking reliability.

[0111] In other embodiments, as Figures 16-17 shown, only one of its side plates 12 is provided with an unlocking operation part 33.

[0112] Embodiment 7

[0113] AsFigures 18-20 The flat mop described above is different from the embodiment 1 in that, in the same side plate 12, the unlocking operation part 33 is connected to the anti-rotation pin 34 through the connecting rod assembly 52. A connecting rod abutting column 53 is provided in the side plate 12, and the connecting rod abutting column 53 is arranged in alignment with the anti-rotation groove 31. The connecting rod assembly 52 includes a first connecting rod 521 and a second connecting rod 522, one end of the first connecting rod 521 abuts against the connecting rod abutting column 53, and the other end of the first connecting rod 521 is pivotally connected to the second connecting rod 522. The unlocking operation part 33 applies force to the pivotal joint of the first connecting rod 521 and the second connecting rod 522 to drive the free end of the second connecting rod 522 to extend into the anti-rotation groove 31 and push the anti-rotation pin 34. The connecting rod assembly 52 (such as the first connecting rod 521 and the second connecting rod 522) amplifies the operating force through the principle of leverage, which is suitable for scenes requiring a larger unlocking force.

[0114] In this embodiment, the side plate 12 includes a second bottom plate and a second cover plate 125. The second cover plate 124 is formed with two guide panels 126 for the unlocking operation portion 33 to move up and down. The guide panels 126 are formed with a limiting notch 127 suitable for limiting the displacement of the connecting rod assembly 52. The second cover plate 125 also includes a guiding inclined surface 128 suitable for guiding the second connecting rod 522 to open or close.

[0115] In other embodiments, only one side panel 12 is provided with the unlocking operation portion 33 .

[0116] Example 8

[0117] A flat mop, compared with the first embodiment, is different in that the second driven arm 372 and the second driven arm 372 are pivotally connected to the two ends of the same transmission connecting rod 392 , and the transmission connecting rod 392 is pivotally connected to the main board 11 .

[0118] In the same side plate 12, the unlocking operation part 33 is connected to the anti-rotation pin 34 through the transmission slider 51, and the unlocking operation part 33 is suitable for driving the transmission slider 51 to slide into the anti-rotation groove 31 and push the anti-rotation pin 34. The unlocking operation part 33 includes a driving gear 332 and a pressing handle 333 extending along the tangential direction of the driving gear 332, and the transmission slider 51 includes a driven rack 512 suitable for matching the driving gear 332. The meshing of the gear and rack can ensure the accurate transmission of the operating force, avoid empty travel or slipping, and improve the reliability of unlocking.

[0119] In other embodiments, only one side panel 12 is provided with the unlocking operation portion 33 .

[0120] Example 9

[0121] A flat mop, compared with the first embodiment, is different in that the second driven arm 372 and the second driven arm 372 are pivotally connected to the two ends of the same transmission connecting rod 392 , and the transmission connecting rod 392 is pivotally connected to the main board 11 .

[0122] In the same side plate 12, the unlocking operation part 33 is drivingly connected to the anti-rotation pin 34 through a connecting rod assembly 52. The connecting rod assembly 52 includes a first connecting rod 521 and a second connecting rod 522. One end of the first connecting rod 521 abuts against the side plate 12, and the other end of the first connecting rod 521 is pivotally connected to the second connecting rod 522. The unlocking operation part 33 applies a force to the pivotal connection of the first connecting rod 521 and the second connecting rod 522 to drive the free end of the second connecting rod 522 to extend into the anti-rotation groove 31 and push open the anti-rotation pin 34. The connecting rod assembly 52 (such as the first connecting rod 521 cooperating with the second connecting rod 522) magnifies the operating force through the lever principle, which is suitable for scenarios that require a relatively large unlocking force.

[0123] In other embodiments, only one of its side plates 12 is provided with an unlocking operation part 33.

[0124] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A flat mop, comprising a mop board, characterized in that, The drag plate includes a main board and side plates pivotally connected to both sides of the main board. The drag plate has a flattened state and a folded state. The side plates include anti-rotation grooves and reset guiding surfaces. The anti-rotation grooves include open ends facing the main board. One end of the reset guiding surface extends towards the open ends of the anti-rotation grooves. It further includes an anti-rotation unit provided on the main board, including two anti-rotation pins arranged back to back, a linkage mechanism and an elastic reset member. The two anti-rotation pins are adapted to be respectively inserted into the corresponding anti-rotation grooves to limit the folding of the side plates, and thus the drag plate is locked in the flattened state. The linkage mechanism is adapted to perform synchronous reverse movement in response to an external operating force to drive the two anti-rotation pins to synchronously withdraw from the anti-rotation grooves to release the lock. The reset elastic body is adapted to drive the two anti-rotation pins to synchronously enter the anti-rotation grooves through the linkage mechanism to re-lock; an unlocking operation part adapted to receive an external operating force; the unlocking operation part is adapted to drive the two anti-rotation pins to withdraw from the anti-rotation grooves simultaneously through the linkage mechanism; or, the unlocking operation part is adapted to drive one of the anti-rotation pins to withdraw from the anti-rotation groove, and one of the anti-rotation grooves drives the other anti-rotation pin to withdraw from the anti-rotation groove simultaneously through the linkage mechanism; a state locking unit including a first locking part and a second locking part. The first locking part is provided on the side plate and moves synchronously with the side plate. In the flattened state, the first locking part is in a standby position. During the unlocking process of the two-way locking unit, the second locking part is adapted to move with the linkage mechanism to abut against the first locking part in the standby position to temporarily limit the anti-rotation pins to remain disengaged from the anti-rotation grooves, so that the side plates can be folded; When the side plates are turned up and reset, the guiding reset surface is adapted to guide the anti-rotation pins to align with the open ends of the anti-rotation grooves.

2. The flat mop according to claim 1, wherein The linkage mechanism includes a first transmission unit and a second transmission unit. The first transmission unit includes a transmission main body, a first transmission arm and a first driven arm connected in sequence. The second transmission unit includes a transmission main body, a second transmission arm and a second driven arm connected in sequence. An unlocking operation part is provided on the main board, and the unlocking operation part is adapted to be in transmission connection with the first driven arm and the second driven arm simultaneously to transmit an external operating force.

3. The flat mop according to claim 2, wherein the unlocking operation part includes two symmetrically arranged driving inclined surfaces. The first transmission unit includes a first driven inclined surface, and the second transmission unit includes a second driven transmission inclined surface. The two driving inclined surfaces are in sliding fit with the first driven inclined surface and the second driven inclined surface respectively at the same time; or, the unlocking operation part includes a driving gear. The first transmission unit includes a first driven rack, and the second transmission unit includes a second driven rack. The driving gear is in mesh with the first driven gear and the second driven gear respectively at the same time.

4. A flat mop according to claim 1, characterized in that, The linkage mechanism includes two transmission units, the two transmission units are centrosymmetric about the center of the main board, the transmission unit includes a transmission body, a first transmission arm and a second transmission arm respectively extending outward from one end of the transmission body, a first driven arm connected to the first transmission arm, and a second driven arm connected to the second transmission arm. At least one of the side plates is provided with the unlocking operation part, and the unlocking operation part is adapted to transmit an external operation force to one of the two transmission units through the anti-rotation pin. The first driven arm and the second driven arm are drivingly connected to realize synchronous reverse movement of the two transmission units.

5. The flat mop according to claim 4, wherein The first driven arm includes a first rack, the second driven arm includes a second rack, the first rack and the second rack are meshed with the same transmission gear, and the transmission gear is pivotally connected to the main board; or, the second driven arm and the second driven arm are pivotally connected to two ends of the same transmission link, and the transmission link is pivotally connected to the main board.

6. A flat mop according to claim 4 or 5, characterized in that, In the same side plate, the unlocking operation part is drivingly connected to the anti-rotation pin through a transmission slider, and the unlocking operation part is adapted to drive the transmission slider to slide into the anti-rotation groove and push open the anti-rotation pin, wherein: The unlocking operation part includes a driving inclined surface, and the transmission slider includes a driven inclined surface adapted to cooperate with the driving inclined surface, or, the unlocking operation part includes a driving gear and a pressing handle extending tangentially along the driving gear, and the transmission slider includes a driven rack adapted to cooperate with the driving gear.

7. A flat mop according to claim 4 or 5, characterized in that, In the same side plate, the unlocking operation part is drivingly connected to the anti-rotation pin through a link assembly, the link assembly includes a first link and a second link, one end of the first link abuts against the side plate, the other end of the first link is pivotally connected to the second link, and the unlocking operation part drives the free end of the second link to extend into the anti-rotation groove and push open the anti-rotation pin by applying force to the pivotal connection of the first link and the second link.

8. A flat mop according to claim 3 or 5, characterized in that The state locking unit includes a locking spring, the transmission body includes a second spring groove perpendicular to its telescopic direction, the second spring groove includes an open end and a closed end, the second locking part is telescopically arranged in the second spring groove, and the locking spring abuts between the second locking part and the closed end of the second spring groove; The first locking part includes an integrally formed first locking groove and a first locking surface, the second locking part includes an integrally formed first locking buckle and a second locking surface. In the flattened state: When the anti-rotation groove is inserted into the anti-rotation groove, the first locking groove is engaged with the first locking buckle; the second locking part is adapted to move along with the linkage mechanism so that the first locking groove is separated from the first locking buckle, and the locking spring then drives the second locking part to move until the first stop surface abuts against the second stop surface.

9. The flat mop according to claim 3 or 5, wherein The sliding plate includes a medium long axis l arranged along its length direction and a medium short axis h arranged along its width direction. The side plate rotates around a pivot axis α, and the pivot axis α is arranged parallel to one of the medium long axis l and the medium short axis h. The anti-rotation pin is arranged perpendicular to the pivot axis α, and one unlocking operation part is adapted to simultaneously drive the two transmission units to move synchronously closer to each other in a direction perpendicular to the pivot axis α; The first driven arm is arranged in a direction perpendicular to the pivot axis α, the second driven arm is arranged parallel to the first driven arm, and the first transmission arm and the second transmission arm are adapted to guide the first driven arm and the second driven arm to be arranged offset in the extending direction of the pivot axis α.

10. A folding control method for a flat mop as claimed in claim 1, wherein The steps of folding the flat mop are as follows: S11: Apply an external operating force to the unlocking operation part to drive the linkage mechanism to move synchronously in the opposite direction, drive the two anti-rotation pins arranged back to back to synchronously withdraw from the anti-rotation grooves of the side plates, and release the locking of the side plates; Or, apply an external operating force to the unlocking operation part to drive one anti-rotation pin to withdraw from the anti-rotation groove of the corresponding side plate. When the anti-rotation pin withdraws from the anti-rotation groove, it drives the two transmission units to move synchronously in the opposite direction, drives the other anti-rotation pin to synchronously withdraw from the anti-rotation groove, and releases the locking of the side plates; S12: The second locking part moves with the linkage mechanism to be temporarily in contact with the first locking part in the standby position, temporarily restricts the anti-rotation pin from remaining out of the anti-rotation groove. At this time, the side plate can be turned downwards under the action of gravity to realize the folding of the flat mop; S13: The side plate turns downwards to drive the first locking part to deviate from the standby position, and the second locking part is separated from the first locking part, wherein: The elastic reset part drives the anti-rotation pin and the unlocking operation part to reset through the linkage mechanism; Or, the unlocking operation part maintains the state after being acted by the external operating force, and the elastic reset part drives the anti-rotation pin to reset through the linkage mechanism; The process of flattening the flat mop is as follows: S21: Apply an external operating force to the main board to turn the side plate upwards until it is flattened; S22: The guiding reset surface is adapted to guide the anti-rotation pin to align with the open end of the anti-rotation groove, and the reset elastic body drives the two anti-rotation pins to synchronously enter the corresponding anti-rotation grooves through the linkage mechanism, and the sliding plate is relocked in the flattened state; Or, the guiding reset surface is adapted to guide the anti-rotation pin to align with the open end of the anti-rotation groove, and the reset elastic body drives the two anti-rotation pins to synchronously enter the corresponding anti-rotation grooves through the linkage mechanism, and the sliding plate is relocked in the flattened state. When one anti-rotation pin enters the anti-rotation groove, it drives the unlocking operation part to reset.

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