Locking structure of flat mop

Abstract

A locking structure for a flat mop, comprising a flat mop head and a mop rod, wherein the flat mop head is provided with a through groove with one end open and capable of accommodating a portion of the mop rod, and the lower end of the mop rod is rotatably connected to the bottom of the through groove; the feature is that: a locking component capable of sliding along the axial direction of the mop rod is sleeved on the mop rod, and a disengageable or engaging limiting structure is provided between the locking component and the left and right side walls of the through groove; when the flat mop head is rotated to a position where the mop rod is located in the through groove, the downward movement of the locking component can enable the limiting structure to be combined together, thereby achieving the locking of the flat mop head and the mop rod, and the upward movement of the locking component can enable the limiting structure to be disengaged, and the flat mop head and the mop rod to be unlocked. The locking structure is a flat mop with a simple and reasonable structure, convenient use, and can be locked during spinning and folding.

Description

Technical Field

[0001] The invention relates to a flat mop, and in particular to a locking structure of the flat mop. Background Art

[0002] A flat mop is a common floor cleaning tool. Most mops are single-sided mops designed for use in general households and small-sized room floors. Single-sided mops have only one cleaning surface for mopping the floor, so the cleaning surface needs to be cleaned multiple times during the mopping process. Since the cleanable area of ​​a traditional single-sided mop is small, the cleaning surface needs to be replaced and cleaned quickly, resulting in low cleaning efficiency. A double-sided flat mop has two cleaning surfaces, which can improve cleaning efficiency. However, when dehydrating a double-sided mop, one hand is required to hold the mop rod to position it, and the other hand is required to hold the squeezing mechanism. The relative squeezing movement between the squeezing mechanism and the flat mop is achieved by pushing and pulling the squeezing mechanism with one hand. The operation is very laborious and not easy to operate.

[0003] To solve the above problems, someone invented a flat mop cleaning tool that does not need to be folded and spun upright. For example, the Chinese utility model patent "New Cleaning Tool" with patent number CN201720655739.5 (publication number CN207755232U) and the Chinese invention patent application "Cleaning Tool" with application number CN2018104132736.2 (publication number CN108158523A) disclose such a structure. When spinning, the flat mop head needs to be rotated to a state where its length direction is the same as the axial direction of the mop rod, and is maintained in this state by a locking structure.

[0004] The locking structure disclosed in the aforementioned patent is similar, and the locking structure includes a latch arranged in the spin-drying area and a lock hole arranged in the joint. A channel penetrating the lower side of the flat-plate mop head is opened on the flat-plate mop head. When the flat-plate mop head is rotated to a state where its length direction is the same as the axial direction of the mop rod and inserted into the spin-drying area, the latch passes through the channel and is directly or indirectly inserted into the lock hole. Alternatively, the locking structure includes a latch arranged in the spin-drying area and a lock frame arranged in the flat-plate mop head and capable of sliding along its length direction; a channel for inserting the latch is provided on the lower side of the flat-plate mop head; a limiting structure is provided between the lock frame and the mop rod or joint; the lock frame is supported by a second spring to maintain a tendency to move toward the lower side of the flat-plate mop head; when the lock frame moves upward, the limiting structure limits the lock frame and the mop rod or joint together; when the lock frame moves downward, the limiting structure releases the limit between the lock frame and the mop rod or joint; when the flat-plate mop head is rotated to a state where its length direction is the same as the axial direction of the mop rod and is inserted into the spin-drying area, the latch is inserted into the channel to trigger the lock frame to move upward.

[0005] Regardless of the locking structure, a latch for triggering the lock needs to be provided in the spin-drying area, and the structure is relatively complicated. In addition, when the mop is not in use, the locking structure cannot be locked, and the flat mop head can only be rotated to the mopping state (i.e., the cleaning surface of the flat mop head is placed on the ground) for storage, which requires a large storage space and is prone to water accumulation between the cleaning surface of the flat mop head and the ground. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a locking structure of a flat mop which has a simple and reasonable structure, is easy to use and can be locked when spinning and folding, in view of the above-mentioned existing technical status.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: a locking structure of a flat mop, comprising a flat mop head and a mop rod, wherein the flat mop head is provided with a through groove with one end open and capable of accommodating a part of the mop rod, and the lower end of the mop rod is rotatably connected to the bottom of the through groove; the characteristic is that: a locking component capable of sliding along the axial direction of the mop rod is sleeved on the mop rod, and a disengageable or engageable limiting structure is provided between the locking component and the through groove; when the flat mop head is rotated to a state where the mop rod is located in the through groove, the locking component moves downward to enable the limiting structure to be combined together, thereby realizing the locking of the flat mop head and the mop rod, and the locking component moves upward to enable the limiting structure to be disengaged, and the flat mop head and the mop rod are released from locking.

[0008] Further improvement, a positioning structure is provided between the locking component and the mop rod, and the positioning structure can position the locking component in a downward position state or an upward position state, and the locking component can slide axially when the locking structure is unlocked. When mopping the floor, the positioning structure positions the locking component in an upward position state, the limiting structure is disengaged, the flat-plate mop head and the mop rod are unlocked, and the flat-plate mop head can be rotated to a horizontal mopping position, and the locking component will not interfere with the rotation of the flat-plate mop head; when spinning, the flat-plate mop head rotates until the mop rod is located in the through groove, the positioning structure contacts the locking component, the locking component moves downward, the limiting structure is combined together, and then the flat-plate mop head and the mop rod are locked, and then the locking component is positioned in a downward position state by the positioning structure, and the flat-plate mop head is always kept in a coaxial position with the mop rod (the mop rod is located in the through groove), which is beneficial to the spinning of the flat-plate mop in the spin-drying bucket and prevents the limiting structure from being disengaged during the spinning process.

[0009] Preferably, the positioning structure comprises a positioning sleeve and a locking button, the positioning sleeve is arranged and fixed on the mop rod, an axially arranged T-shaped positioning groove is opened on the positioning sleeve, the diameters of the upper and lower ends of the T-shaped positioning groove are larger than the diameter of the middle section, thereby forming positioning grooves at the upper and lower ends of the T-shaped positioning groove, the locking component is sleeved on the outside of the positioning sleeve and can slide, the locking button is constrained on the locking component and can slide radially relative to the locking component, the locking component is provided with a spring that keeps the locking button with a radial outward movement trend, the locking button has an I-shaped locking column extending into the T-shaped positioning groove, the width of the large-diameter portion of the I-shaped locking column is smaller than the diameter of the positioning groove but larger than the width of the middle section of the T-shaped positioning groove, the width of the small-diameter portion of the I-shaped locking column is smaller than the width of the middle section of the T-shaped positioning groove, and when the locking button is moved outward, the small-diameter portion of the I-shaped locking column is misaligned with the middle section of the T-shaped positioning groove. When locked, the locking button maintains a radial outward movement trend under the action of the spring, the large-diameter part of the I-shaped locking column is stuck in the positioning groove, and the small-diameter part of the I-shaped locking column is misaligned with the middle section of the T-shaped positioning groove, so that the locking button cannot move up and down; when unlocked, the locking button is pressed inward, the large-diameter part of the I-shaped locking column enters the T-shaped positioning groove, and the small-diameter part of the I-shaped locking column corresponds to the middle section of the T-shaped positioning groove, so that the locking button can move up and down.

[0010] Of course, the positioning structure can also adopt the following structure, which includes a locking button rotatably arranged on the locking component, and an upper locking hole and a lower locking hole arranged on the mop rod, and the locking button is provided with a locking column for inserting into the upper locking hole or the lower locking hole, and the locking button is maintained by the action of an elastic component to keep the locking column inserted into the upper locking hole or the lower locking hole.

[0011] Preferably, the above-mentioned limiting structure is a rib-slot plug-in structure, the limiting slot in the rib-slot plug-in structure is provided on one of the locking component and the side wall of the through slot, and the limiting column in the rib-slot plug-in structure is provided on the other of the locking component and the side wall of the through slot; when the locking component is in a downward position, the limiting column is inserted into the limiting slot, and when the locking component is in an upward position, the limiting column is separated from the limiting slot. The rib-slot plug-in structure has the advantages of simple structure and is conducive to achieving limiting. When limiting, the limiting column and the limiting slot are mutually plugged in to achieve the limiting between the mop rod and the flat mop head, and the mop rod cannot rotate relative to the flat mop head, that is, the mop rod is constrained in the through slot, and the mop rod and the through slot remain coaxial.

[0012] Further improvement, the limit groove in the rib-groove plug-in structure is arranged on the side wall of the through groove, the limit column in the rib-groove plug-in structure is arranged on the locking component, and a cam tightening block is rotatably connected in the limit groove, and the outside of the cam tightening block has a wrench part, and the inner end of the cam tightening block is used to press the limit column. By pulling the wrench part, it is determined whether the inner end of the cam tightening block presses the limit column. If the limit column is pressed, the limit column can be locked in the axial direction, that is, the locking component is not easy to move upward, and if the limit column is not pressed, the locking component can be easily moved upward to escape from the limit.

[0013] The limiting structure can also be implemented in the following ways.

[0014] The above-mentioned limiting structure comprises two flip blocks which are respectively rotatably arranged on the left and right side walls of the through groove, the inner side of the flip block has a U-shaped bayonet, the hinge shaft of the flip block is provided with a torsion spring which keeps the upper end of the flip block from opening outward, and the two sides of the locking component are provided with locking blocks which are protruding and cooperate with the flip block; when the locking block is in a downward position state with the locking component, the locking block touches the flip block so that its upper end closes inward and the bayonet clamps the locking block, and when the locking block is in an upward position state with the locking component, the upper end of the flip block opens outward under the action of the torsion spring, and the locking block is disengaged from the bayonet upward. When locking, the locking component is pressed down and held, the locking block on the side of the locking component touches the flip block so that its upper end overcomes the torsion of the torsion spring and closes inward, the bayonet on the flip block clamps the locking block, the locking component moves upward, the locking block on the side of the locking component no longer touches the flip block, the upper end of the flip block opens outward under the action of the torsion spring, and the locking block can be disengaged from the bayonet upward.

[0015] The above-mentioned limiting structure includes a pressing block, which is sleeved outside the locking component and can slide axially. The locking component is provided with a stopper to prevent the pressing block from moving downward and disengaging from the locking component. The locking component is provided with a driving structure for driving the pressing block to move downward and keep it in the downward position. The downward movement of the pressing block can press the top surface of the flat mop head. When locked, the driving structure drives the pressing block to move downward and keep it in the downward position, so that the pressing block keeps pressing the top surface of the flat mop head, that is, the locking component and the flat mop head are locked by friction. The driving structure can be a connecting rod driving structure or an eccentric wheel driving structure.

[0016] In order to make the clamping block and the flat mop head more firmly combined, the bottom of the clamping block has a positioning portion extending downward, the top surface of the flat mop head is provided with a positioning hole for the positioning portion to be inserted, and a rib groove guide structure is provided between the inner hole wall of the clamping block and the outer peripheral wall of the locking component, so that the downward movement of the clamping block can enable the positioning portion to be inserted into the positioning hole.

[0017] The above-mentioned limiting structure includes a locking sleeve threadedly connected to the bottom of the locking component, and the top surface of the flat mop head is provided with a slot for the locking sleeve to be inserted into. The locking sleeve can be inserted into the slot by moving downward, and can be disengaged from the slot by moving upward. When locking, the locking sleeve is rotated, and according to the working principle of the threaded transmission, the axial movement of the locking sleeve is controlled to achieve locking or unlocking.

[0018] Compared with the prior art, the advantages of the present invention are: the locking structure realizes locking or not by sliding the locking component sleeved on the mop rod along the axial direction of the mop rod, the locking component moves downward to combine the limiting structure, thereby realizing the locking of the flat mop head and the mop rod, and the locking component moves upward to disengage the limiting structure, thereby releasing the lock between the flat mop head and the mop rod. The locking component is an external component, which is convenient for assembly and operation, and there is no need to set the locking component inside the flat mop head, thereby simplifying the structure of the flat mop head; in addition, there is no need to set an additional latch for triggering the lock in the spin-drying area of ​​the mop bucket, so that the mop rod and the flat mop head can be locked by moving the locking component when the mop is not in use, and the flat mop head is rotated to the spin-drying state (that is, the flat mop head and the mop rod are coaxial) for storage, and the storage space is small, and the flat mop head can be placed upright to avoid contact between the cleaning surface of the flat mop head and the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the first embodiment of the present invention (locked state);

[0020] Figure 2 It is a cross-sectional view of the first embodiment of the present invention along the width direction of the flat mop head (locked state);

[0021] Figure 3 It is a cross-sectional view of the first embodiment of the present invention along the thickness direction of the flat mop head (locked state);

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the first embodiment of the present invention (unlocked state);

[0023] Figure 5 It is a cross-sectional view of the first embodiment of the present invention along the width direction of the flat mop head (unlocked state);

[0024] Figure 6 It is a cross-sectional view of the first embodiment of the present invention along the thickness direction of the flat mop head (unlocked state);

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the locking button in the first embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the three-dimensional structure of the positioning bar in the first embodiment of the present invention;

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the locking component in the first embodiment of the present invention;

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the second embodiment of the present invention (locked state);

[0029] Fig.11 It is a three-dimensional partial exploded view of the second embodiment of the present invention (unlocked state);

[0030] Fig.12 It is a three-dimensional structural schematic diagram of the third embodiment of the present invention (locked state);

[0031] Fig.13 It is a three-dimensional partial exploded view of the third embodiment of the present invention (unlocked state);

[0032] Fig.14 Schematic diagram of the three-dimensional structure of the fourth embodiment of the present invention (locked state);

[0033] Fig.15 It is a three-dimensional partial exploded view of the fourth embodiment of the present invention (unlocked state);

[0034] Fig.16 Schematic diagram of the three-dimensional structure of the fifth embodiment of the present invention (locked state);

[0035] Fig.17 Schematic diagram of the three-dimensional structure of the sixth embodiment of the present invention (locked state);

[0036] Fig.18 It is a three-dimensional partial exploded view of the sixth embodiment of the present invention (unlocked state);

[0037] Fig.19 Schematic diagram of the three-dimensional structure of the seventh embodiment of the present invention (locked state);

[0038] Fig. 20 It is a three-dimensional partial exploded view of the seventh embodiment of the present invention (unlocked state); DETAILED DESCRIPTION

[0039] The present invention is further described in detail below with reference to the accompanying drawings.

[0040] like Figures 1 to 9 FIG. 1 is a first embodiment of the present invention.

[0041] A locking structure of a flat mop comprises a flat mop head 1 and a mop rod 2. The flat mop head 1 is provided with a through groove 3 which is open at one end and can accommodate part of the mop rod 2. The lower end of the mop rod 2 is rotatably connected to the bottom of the through groove 3 through a joint 4. Wiping objects 15 are provided on the front and rear end surfaces of the flat mop head 1. When the mop rod 2 is rotated to form an angle with the flat mop head 1, it is in a mopping state. When the mop rod 2 is rotated to be accommodated in the through groove 3 of the flat mop head 1, it is in a spinning or folding state.

[0042] The mop rod 2 is sleeved with a locking component 5 which can slide along the axial direction of the mop rod 2. The locking component 5 is in the shape of a sleeve, and a disengageable or engaging limiting structure is provided between the locking component 5 and the through groove 3. When the flat-plate mop head 1 is rotated to the position where the mop rod 2 is located in the through groove 3, the locking component 5 moves downward to enable the limiting structure to be combined together, thereby achieving the locking of the flat-plate mop head 1 and the mop rod 2. The locking component 5 moves upward to enable the limiting structure to be disengaged, and the flat-plate mop head 1 and the mop rod 2 are released from the lock.

[0043] A positioning structure is provided between the locking component 5 and the mop rod 2. The positioning structure can position the locking component 5 in a downward position or an upward position. When the locking structure is unlocked, the locking component 5 can slide axially. The positioning structure includes a positioning sleeve 6 and a locking button 7. The positioning sleeve 6 is sleeved and fixed on the mop rod 2. The positioning sleeve 6 is provided with an axially arranged T-shaped positioning groove 61. The diameters of the upper and lower ends of the T-shaped positioning groove 61 are larger than the diameter of the middle section, so that positioning notches 611 are formed at the upper and lower ends of the T-shaped positioning groove. The locking component 5 is sleeved on the outside of the positioning sleeve 6 and can slide. The locking button 7 is constrained on the locking component 5 and can slide radially relative to the locking component 5. The locking component 5 is provided with a spring 51 that keeps the locking button 7 from moving radially outward. The locking button 7 has an I-shaped locking column 71 that extends into the T-shaped positioning groove. The I-shaped locking column 71 The width of the large-diameter portion 711 is smaller than the diameter of the positioning slot 611 but larger than the width of the middle section of the T-shaped positioning slot 61. The width of the small-diameter portion 712 of the I-shaped locking column 71 is smaller than the width of the middle section of the T-shaped positioning slot 61. When the locking button 7 is moved outward, the small-diameter portion 712 of the I-shaped locking column 71 is misaligned with the middle section of the T-shaped positioning slot 61, that is, the large-diameter portion 711 of the I-shaped locking column 71 is stuck in the positioning slot 611, and the small-diameter portion 712 of the I-shaped locking column 71 is exposed to the outside of the T-shaped positioning slot 61, and the large-diameter portion 711 of the I-shaped locking column 71 cannot pass through the middle section of the T-shaped positioning slot 61, thereby achieving locking.

[0044] Of course, the positioning structure can also adopt the following structure: including a locking button rotatably arranged on the locking component, and an upper locking hole and a lower locking hole arranged on the mop rod, the locking button is provided with a locking column for inserting into the upper locking hole or the lower locking hole, and the locking button is maintained by the action of an elastic component to keep the locking column inserted into the upper locking hole or the lower locking hole.

[0045] The limiting structure is a rib-slot plug-in structure, in which the limiting slot 8a is arranged on the side wall of the through slot 3, and the limiting column 8b is arranged on the locking component 5; when the locking component 5 is in the downward position, the limiting column is inserted into the limiting slot 8a, and when the locking component 5 is in the upward position, the limiting column 8b is separated from the limiting slot 8a. An interference fit point is arranged between the lower part of the limiting column 8b and the bottom of the limiting slot 8a. Through the setting of the interference fit point, a certain force needs to be applied to allow the limiting column 8b to be separated from the limiting slot 8a, and the operation feel is better.

[0046] When mopping the floor, the locking component 5 is in the upward position, the large-diameter portion 711 of the I-shaped locking column 71 is inserted into and retained in the upper positioning notch 611 under the action of the spring, and the locking component 5 is positioned in the upward position. The limiting column 8b is disengaged from the limiting groove 8a, the mop rod 2 and the flat mop head 1 are not locked, and the flat mop head 1 can rotate relative to the mop rod.

[0047] When spinning or collecting, first rotate the flat mop head 1, and the flat mop head 1 rotates to the position where the mop rod 2 is located in the through groove 3, press the locking button 7, the large-diameter portion 711 of the I-shaped locking column 71 enters the T-shaped positioning groove 61, and the small-diameter portion 712 of the I-shaped locking column 71 can pass through the middle section of the T-shaped positioning groove 61, move the locking component 5 downward, and the small-diameter portion 712 of the I-shaped locking column 71 slides to the lower positioning notch 611, release the hand, and the locking button 7 moves radially outward under the action of the spring, and the large-diameter portion 711 of the I-shaped locking column 71 is stuck in and retained in the lower positioning notch 611 under the action of the spring, positioning the locking component 5 in the downward position, and the limiting column is inserted into the limiting groove 8a at this time, completing the locking of the mop rod 2 and the flat mop head 1.

[0048] like Fig.10 , 11 FIG. 2 is a second embodiment of the present invention.

[0049] The difference between this embodiment and the first embodiment is that the limiting groove 8a in the rib-groove plug-in structure is arranged on the side wall of the through groove 3, and the limiting column 8b in the rib-groove plug-in structure is arranged on the locking component 5. A cam tightening block 81 is also rotatably connected in the limiting groove 8a, and the outside of the cam tightening block 81 has a wrench part 811, and the inner end of the cam tightening block 81 is used to tighten the limiting column 8b.

[0050] By turning the wrench part 811, it is determined whether the inner end of the cam locking block 81 is pressing the limit column 8b. If the limit column 8b is pressed, the limit column 8b can be locked in the axial direction, that is, the locking component 5 is not easy to move upward. If the limit column 8b is not pressed, the locking component 5 can move upward more easily to break away from the limit.

[0051] like Fig.12 , 13 FIG. 1 is a third embodiment of the present invention.

[0052] The difference between this embodiment and the first embodiment lies in that the limiting structure is a rib-groove plug-in structure, the limiting groove 8a in the rib-groove plug-in structure is provided on the locking component 5, the limiting column 8b in the rib-groove plug-in structure is provided on the side wall of the through groove 3, and the limiting column 8b is a convex portion with a T-shaped cross-section; when the locking component 5 is in a downward position, the limiting column is inserted into the limiting groove 8a, and when the locking component 5 is in an upward position, the limiting column is disengaged from the limiting groove 8a.

[0053] like Fig.14 , 15 FIG. 4 is a fourth embodiment of the present invention.

[0054] The difference between this embodiment and the first embodiment is that the limiting structure includes two flip blocks 9 rotatably arranged on the left and right side walls of the through groove 3 respectively, the inner side of the flip block 9 has a U-shaped bayonet 91, and the hinge axis of the flip block 9 is provided with a torsion spring which keeps the upper end of the flip block 9 opening outwardly, and the torsion spring is not shown in the drawing. The two sides of the locking component 5 are provided with outwardly protruding locking blocks 52 which cooperate with the flip block 9; when the locking block 52 is in the downward position state with the locking component 5, the locking block 52 touches the flip block 9 so that the upper end thereof closes inwardly and the bayonet 91 clamps the locking block; when the locking block 52 is in the upward position state with the locking component 5, the upper end of the flip block 9 opens outwardly under the action of the torsion spring, and the locking block 52 disengages from the bayonet 91 upward.

[0055] When locked, the locking component 5 is pressed down and held, and the locking block 52 on the side of the locking component 5 touches the flip block 9 so that its upper end overcomes the torsion force of the torsion spring and closes inward, and the bayonet 91 on the flip block 9 clamps the locking block 52, and the locking component 5 moves upward, and the locking block 52 on the side of the locking component 5 no longer touches the flip block 9. Under the action of the torsion spring, the upper end of the flip block 9 opens outward, and the locking block 52 can be disengaged from the bayonet 91 upward.

[0056] like Fig.16 FIG. 5 is a fifth embodiment of the present invention.

[0057] The difference between this embodiment and the first embodiment is that the limiting structure includes a pressing block 10, which is sleeved outside the locking component 5 and can slide axially, and the locking component 5 is provided with a stopper 53 for blocking the pressing block 10 from moving downward and disengaging from the locking component 5, and the locking component 5 is provided with a driving structure 102 for driving the pressing block 10 to move downward and keep it in the downward position, and the downward movement of the pressing block 10 can press the top surface of the flat mop head 1. The driving structure 102 can be a connecting rod driving structure or an eccentric wheel driving structure.

[0058] like Fig.17 ,18 The sixth embodiment of the present invention is shown.

[0059] The difference between this embodiment and the fourth embodiment is that: the bottom of the pressing block 10 has a positioning portion 101 extending downward, the top surface of the flat mop head 1 is provided with a positioning hole 11 for the positioning portion to be inserted into, and a rib groove guide structure 12 is provided between the inner hole wall of the pressing block 10 and the outer peripheral wall of the locking component 5, and the downward movement of the pressing block 10 can enable the positioning portion 101 to be inserted into the positioning hole 11.

[0060] like Fig.18 , 20 The seventh embodiment of the present invention is shown.

[0061] The difference between this embodiment and the first embodiment is that the limiting structure includes a locking sleeve 13 threadedly connected below the locking component 5, and the top surface of the flat mop head 1 is provided with a slot 14 for the locking sleeve 13 to be inserted into. The locking sleeve 13 can be inserted into the slot 14 by moving downward, and can be disengaged from the slot 14 by moving upward.

[0062] It should be noted that in the description of this embodiment, the terms "front, rear", "left, right", "up, down", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. The terms "install", "connect", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A locking structure for a flat mop, comprising a flat mop head (1) and a mop rod (2), wherein the flat mop head (1) is provided with a through groove (3) with one end open and capable of accommodating a portion of the mop rod (2), and the lower end of the mop rod (2) is rotatably connected to the bottom of the through groove (3); characterized in that: The mop rod (2) is sleeved with a locking component (5) that can slide along the axial direction of the mop rod (2), and a disengageable or engageable limiting structure is provided between the locking component (5) and the through groove (3); when the flat mop head (1) is rotated to a position where the mop rod (2) is located in the through groove (3), the locking component (5) moves downward to enable the limiting structure to be engaged, thereby achieving locking of the flat mop head (1) and the mop rod (2); and the locking component (5) moves upward to enable the limiting structure to be disengaged, thereby releasing the lock between the flat mop head (1) and the mop rod (2); A positioning structure is provided between the locking component (5) and the mop rod (2), and the positioning structure can position the locking component (5) in a downward position or an upward position, and when the locking structure is unlocked, the locking component (5) can slide axially; The positioning structure comprises a positioning sleeve (6) and a locking button (7). The positioning sleeve (6) is sleeved and fixed on the mop rod (2). The positioning sleeve (6) is provided with an axially arranged T-shaped positioning groove (61). The diameters of the upper and lower ends of the T-shaped positioning groove (61) are larger than the diameter of the middle section, so that positioning notches (611) are formed at the upper and lower ends of the T-shaped positioning groove. The locking component (5) is sleeved on the outside of the positioning sleeve (6) and can slide. The locking button (7) is constrained on the locking component (5) and can slide radially relative to the locking component (5). The locking component (5) ) is provided with a spring (51) for keeping the locking button (7) in a radially outward movement trend, the locking button (7) has an I-shaped locking column (71) extending into the T-shaped positioning groove, the width of the large-diameter portion of the I-shaped locking column (71) is smaller than the diameter of the positioning groove (611) but larger than the width of the middle section of the T-shaped positioning groove (61), the width of the small-diameter portion of the I-shaped locking column (71) is smaller than the width of the middle section of the T-shaped positioning groove (61), and when the locking button (7) is in an outward movement state, the small-diameter portion of the I-shaped locking column (71) is misaligned with the middle section of the T-shaped positioning groove (61); The limiting structure comprises a pressing block (10), the pressing block (10) is sleeved outside the locking component (5) and can slide axially, the locking component (5) is provided with a stopper (53) for blocking the pressing block (10) from moving downward and disengaging from the locking component (5), the locking component (5) is provided with a driving structure (102) for driving the pressing block (10) to move downward and keep it in the downward position, the downward movement of the pressing block (10) can press the top surface of the flat mop head (1); the bottom of the pressing block (10) has a positioning portion (101) extending downward, the top surface of the flat mop head (1) is provided with a positioning hole (11) for the positioning portion to be inserted, a rib groove guide structure (12) is provided between the inner hole wall of the pressing block (10) and the outer peripheral wall of the locking component (5), and the downward movement of the pressing block (10) can cause the positioning portion (101) to be inserted into the positioning hole (11); When the mop rod (2) is rotated to form an angle with the flat mop head (1), it is in a mopping state; when the mop rod (2) is rotated to be accommodated in the through groove (3) of the flat mop head (1), it is in a corresponding drying or folding state.

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