Mop material clamping mop

The automatic clamping and releasing of the mop is achieved by stepping on and pressing the transmission component of the top cover, which solves the problems of pollution and force control caused by manual operation, and improves the convenience and applicability of use.

CN121754094APending Publication Date: 2026-03-31李杰
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-28
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing mop clamps require manual operation, which leads to a high risk of hand contamination, difficulty in controlling clamping force, and inconvenience, especially for users with weaker hands.

Method used

The device uses a step-press mechanism to press the top cover, which drives the material clamping assembly to clamp or release the material via a transmission component, including a linkage assembly and a gear and rack assembly, to achieve automatic clamping and replacement of the material, avoiding manual contact.

Benefits of technology

It improves ease of operation, avoids hand contamination, provides stable clamping force, is suitable for a wider range of people, and has a compact structure for easy storage.

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Abstract

The invention provides a mop material clamping mop, and relates to the technical field of articles for daily use, the mop material clamping mop comprises a mop plate assembly, a transmission assembly and a mop material clamping assembly, the mop plate assembly comprises a base and a pressing top cover, the fixed edge of the pressing top cover is rotatably arranged on the base, and the transmission assembly is arranged on the base; a mounting clamping cavity is defined between the pressing top cover and the base, the transmission assembly and the dragging material clamping assembly are both arranged in the mounting clamping cavity, and the pressing top cover is connected with the dragging material clamping assembly through the transmission assembly; when the movable edge of the pressing top cover is treaded, the pressing top cover can drive the dragging material clamping assembly to clamp or loosen the dragging material through the transmission assembly; when the mopping material is replaced, the mopping material is replaced in a pedal mode, operation is convenient and fast, when the mopping material clamping assembly is used, clamping is stable, the cleaning effect is guaranteed, and when the mopping material clamping assembly is stored, the structure is compact, and storage is convenient.
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Description

Technical Field

[0001] This invention relates to the field of household goods technology, specifically to a mop clamping material. Background Technology

[0002] Mop clip mops are widely used in daily household cleaning and office cleaning due to their convenience and the fact that they eliminate the need to wash the mop head after cleaning, requiring only the replacement of mop materials such as paper towels, dry wipes, wet wipes, or cloths. The core function of existing mop clip mops is to allow for the detachable and secure fixing of the mop material. Most of these mops use a manual clamping structure. Specifically, users typically need to manually operate the clamps, clips, or elastic clips to open the clamping structure, insert the mop material, and then release the operating parts, relying on the structure's own elastic restoring force to clamp and secure the mop material. When it's time to replace the mop material, the user also needs to manually operate the clamping structure to open it again and remove the old mop material.

[0003] However, the aforementioned manually clamped mops have significant drawbacks in actual use: Firstly, they are not very convenient to operate. Users need to manually contact the clamping parts before and after cleaning. If the mop absorbs sewage, stains, or dust during cleaning, manual operation can easily contaminate hands, adding an extra step of handwashing after cleaning, and may even affect the user's health due to bacteria and other microorganisms present in the stains. Secondly, the clamping force is difficult to control precisely. Too little force may cause the mop to loosen or shift during cleaning, affecting the cleaning effect, while too much force may make it difficult for the clamping parts to open or close, increasing the difficulty of operation, especially for users with less hand strength, resulting in a very poor user experience. In addition, some manual clamping structures require the user to operate with both hands. When holding other cleaning tools or in a special cleaning posture, the convenience of operation is further reduced, making it difficult to meet users' needs for efficient and convenient cleaning tools.

[0004] Therefore, developing a mop that can clamp and release the mop material without manual operation has become a pressing technical problem in this field. Summary of the Invention

[0005] The purpose of this invention is to provide a mop clamping material to solve the above-mentioned technical problems in the prior art; the preferred technical solutions among the many technical solutions provided by this invention can produce many technical effects, as detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides a mop material clamping mop, comprising a mop plate assembly, a transmission assembly, and a mop material clamping assembly, wherein: the mop plate assembly includes a base and a pressing top cover, the fixed edge of the pressing top cover is rotatably disposed on the base, the pressing top cover and the base form a mounting cavity, the transmission assembly and the mop material clamping assembly are both disposed within the mounting cavity, and the pressing top cover is connected to the mop material clamping assembly through the transmission assembly; stepping on the movable edge of the pressing top cover can cause the pressing top cover to drive the mop material clamping assembly to clamp or release the mop material through the transmission assembly.

[0008] Preferably, the drag material clamping assembly includes a first clamping member and a second clamping member disposed opposite to each other, wherein: the first clamping member and the second clamping member are movably disposed within the mounting cavity; both the first clamping member and the second clamping member are connected to the pressing top cover via the transmission assembly; the movable side of the pressing top cover rotates, and the transmission assembly drives the first clamping member and the second clamping member to move in opposite directions or towards each other, so as to clamp or release the drag material with the edge of the base.

[0009] Preferably, the transmission assembly includes a connecting rod assembly and a gear and rack assembly, wherein: the pressing top cover is connected to the connecting rod assembly, the connecting rod assembly is connected to the gear and rack assembly, and the first clamping member is connected to the second clamping member through the gear and rack assembly.

[0010] Preferably, the gear and rack assembly includes a first rack, a transmission gear, and a second rack, wherein: the first rack is connected to the first clamping member; the second rack is arranged parallel to the first rack and is connected to the second clamping member; and the transmission gear is meshed between the first rack and the second rack.

[0011] Preferably, the mounting cavity is provided with a first guide groove and a second guide groove, wherein: the first rack is slidably disposed in the first guide groove; and the second rack is slidably disposed in the second guide groove.

[0012] Preferably, the linkage assembly includes a first linkage and a second linkage, wherein: a first end of the first linkage is rotatably connected to the pressing top cover, and a second end of the first linkage is rotatably connected to the first rack; a first end of the second linkage is rotatably mounted on the first linkage, and a second end of the second linkage is rotatably connected to the base.

[0013] Preferably, the first clamping member is connected to a first guide rod, and a first elastic element is sleeved on the first guide rod; the second clamping member is connected to a second guide rod, and a second elastic element is sleeved on the second guide rod; when the drag material clamping assembly is in a clamping state, the first elastic element and the second elastic element deform.

[0014] Preferably, the mounting cavity is provided with a first guide hole and a second guide hole, wherein: the first guide rod slides through the first guide hole; and the second guide rod slides through the second guide hole.

[0015] Preferably, the mop clamping assembly further includes a locking component, wherein: the locking component is rotatably disposed within the mounting cavity, and the locking component is provided with a locking portion; the pressing top cover is provided with a locking portion adapted to the locking portion; when the locking portion and the locking portion are locked together, the mop clamping assembly is in a clamped state.

[0016] Preferably, the locking assembly includes a third elastic element, which is disposed on the locking element and its two ends abut against the locking element and the base, respectively; when the locking part is locked with the locking part, the third elastic element deforms.

[0017] The mop clamping device provided by this invention has at least the following beneficial effects: I. Improve ease of operation and avoid hand contamination: This invention allows users to clamp or release the mop by stepping on the movable edge of the top cover, eliminating the need for manual contact with the mop clamping components and the mop itself. This fundamentally solves the problem of hand contamination caused by manual operation of existing manual mop clamps, reducing extra cleaning steps and meeting users' hygiene needs. Furthermore, the step-operated design eliminates the need for both hands, allowing users to easily change the mop even while holding other items or in a specific cleaning posture, further enhancing ease of use.

[0018] 2. Stable clamping driving force ensures effective material clamping: Pressing the top cover drives the material clamping component to move through the transmission assembly. The stepping operation provides a more stable and uniform driving force, thus ensuring the driving effect and providing a prerequisite for clamping the material. At the same time, the stepping operation is less difficult to operate manually, and even people with less hand strength can easily achieve reliable clamping and releasing of the material, making it suitable for a wider range of people.

[0019] III. The structure and transmission are reliable, the layout is compact, and it is easy to store and use: The transmission component effectively converts the pressing and stepping action of the top cover into the clamping / releasing action of the mop clamping component. All components are integrated into the mounting cavity, resulting in a compact structure that ensures transmission stability without increasing the overall size of the mop, making it easy to store and use. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram from one perspective of the present invention; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This is a structural schematic diagram of the base of the present invention from an exploded perspective; Figure 4 This is a structural schematic diagram of the base of the present invention from another perspective; Figure 5 This is a schematic diagram of the transmission assembly and drag material clamping assembly installed on the base according to the present invention; Figure 6 This is a schematic diagram of the structure of the transmission component and the drag material clamping component of the present invention; Figure 7 This is a schematic diagram of the locking component and the pressing top cover of the present invention; Figure 8 This is the present invention. Figure 7 Enlarged view of part A.

[0022] Figure Labels 1. Mop board assembly; 11. Base; 12. Press-down top cover; 121. Support block; 122. Locking part; 2. Transmission assembly; 21. Linkage assembly; 211. First link; 212. Second link; 22. Gear and rack assembly; 221. First rack; 222. Transmission gear; 223. Second rack; 3. Mop clamping assembly; 31. First clamping member; 32. Second clamping member; 33. First guide rod; 34. Second guide rod; 35. First elastic member; 36. Second elastic member; 4. Locking assembly; 41. Locking member; 411. Locking part. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0024] Example 1: This invention provides a mop clamping device, see reference. Figures 1 to 6 As shown, the mop clamping assembly includes a mop plate assembly 1, a transmission assembly 2, and a mop clamping assembly 3.

[0025] The mop board assembly 1 includes a base 11 and a pressing top cover 12. The fixed edge of the pressing top cover 12 is hinged to the base 11 via a hinge shaft. The pressing top cover 12 is flip-mounted relative to the base 11. The pressing top cover 12 and the base 11 form an installation cavity. The transmission assembly 2 and the mop material clamping assembly 3 are both disposed in the installation cavity. The pressing top cover 12 is connected to the mop material clamping assembly 3 via the transmission assembly 2.

[0026] In actual use, the user steps on and presses the movable edge of the top cover 12. Pressing the top cover 12 drives the material clamping component 3 to clamp or release the material through the transmission component 2, thereby realizing the replacement of the material. The material can be paper towel, dry towel, wet towel, cloth, etc.

[0027] The present invention uses a mop plate assembly 1 with a pressing top cover 12 to trigger the clamping action of the mop clamping assembly 3 by foot pedal. This not only enables the replacement of the mop but also eliminates the need for hand contact with the mop, improving the ease of operation. At the same time, it provides a stable clamping driving force, which is a prerequisite for the clamping effect of the mop clamping assembly 3.

[0028] In addition, by placing the drag material clamping assembly 3 and the transmission assembly 2 in the mounting cavity, the structure is compact and easy to store and use.

[0029] Example 2: Example 2 is based on Example 1: like Figures 1 to 6 As shown, the drag material clamping assembly 3 includes a first clamping member 31 and a second clamping member 32 arranged opposite to each other. The first clamping member 31 and the second clamping member 32 are movably arranged in the mounting cavity. The first clamping member 31 and the second clamping member 32 are both connected to the pressing top cover 12 through the transmission assembly 2. The first clamping member 31 and the second clamping member 32 move synchronously in opposite directions under the transmission action of the transmission assembly 2.

[0030] In actual use, pressing the movable edge of the top cover 12 rotates the first clamping member 31 and the second clamping member 32, which can drive the first clamping member 31 and the second clamping member 32 to move in opposite directions or towards each other through the transmission component 2. The first clamping member 31 and the second clamping member 32 respectively cooperate with the two opposite sides of the base 11 to clamp or release the drag material.

[0031] The dual-clamping structure allows for simultaneous clamping of the mop from both sides, resulting in more even force distribution and significantly improved stability. This ensures the mop remains firmly attached to the base during cleaning.

[0032] As an optional implementation, the transmission assembly 2 includes a connecting rod assembly 21 and a gear and rack assembly 22. The pressing top cover 12 is connected to the connecting rod assembly 21, the connecting rod assembly 21 is connected to the gear and rack assembly 22, and the first clamping member 31 is connected to the second clamping member 32 through the gear and rack assembly 22.

[0033] The linkage assembly 21 has good force transmission characteristics and can smoothly convert the rotational action of pressing the top cover 12 into linear driving force.

[0034] The gear and rack assembly 22 has the advantages of precise transmission and rapid response, and can effectively transmit linear driving force, so that the first clamping member 31 and the second clamping member 32 move synchronously in opposite directions, thereby realizing the clamping / releasing of the drag material.

[0035] As an optional implementation, the gear and rack assembly 22 includes a first rack 221, a transmission gear 222, and a second rack 223. The first rack 221 is connected to the first clamping member 31. The second rack 223 is arranged parallel to the first rack 221 and is connected to the second clamping member 32. The transmission gear 222 is meshed between the first rack 221 and the second rack 223.

[0036] When the drag material is replaced, the linkage assembly 21 transmits the rotational power of pressing the top cover 12 to the first rack 221. The first rack 221 drives the first clamping member 31 to move synchronously. At the same time, the first rack 221 drives the transmission gear 222 to rotate, and the second rack 223 moves synchronously in the opposite direction under the transmission action of the transmission gear 222.

[0037] As an optional implementation, the mounting cavity is provided with a first guide groove and a second guide groove. Specifically, both the first guide groove and the second guide groove are provided on the base 11.

[0038] The first rack 221 is slidably disposed in the first guide groove, and the second rack 223 is slidably disposed in the second guide groove.

[0039] The guide groove strictly limits the sliding trajectory of the rack, preventing lateral deviation or oscillation during transmission and ensuring stable meshing between the rack and the transmission gear. This fundamentally solves the problem of transmission jamming and failure caused by rack deviation. At the same time, the guide groove also supports and positions the rack, preventing it from bending and deforming under stress, ensuring the long-term stability and reliability of the transmission structure, and further extending the product's service life.

[0040] As an optional implementation, the linkage assembly 21 includes a first linkage 211 and a second linkage 212. The first end of the first linkage 211 is hinged to the bottom of the pressing top cover 12, and the second end of the first linkage 211 is hinged to the first rack 221. The first end of the second linkage 212 is hinged to the first linkage 211, and the second end of the second linkage 212 is hinged to the base 11.

[0041] The first link 211 and the second link 212 cooperate to form a double-link linkage structure. Through the coordinated cooperation of multiple hinge points, the force in the transmission process can be distributed, thereby improving the load-bearing capacity and service life of the link assembly 21. At the same time, the double-link structure can further limit the movement trajectory of the clamping component, ensuring that the clamping component moves smoothly along the preset direction.

[0042] As an optional implementation, the first clamping member 31 is connected to a first guide rod 33, and a first elastic member 35 is sleeved on the first guide rod 33; the second clamping member 32 is connected to a second guide rod 34, and a second elastic member 36 is sleeved on the second guide rod 34; both the first elastic member 35 and the second elastic member 36 are springs.

[0043] In actual use, when the first clamping member 31 and the second clamping member 32 are in the state of clamping the drag material, the first elastic member 35 and the second elastic member 36 are in the state of compression deformation.

[0044] When the drag material is released, the first elastic element 35 and the second elastic element 36, which are in a deformed state, release their elastic force, pushing the first clamping element 31 and the second clamping element 32 to move in opposite directions.

[0045] The elastic element, through its own elastic restoring force, drives the two clamping parts to move automatically in opposite directions, further improving the labor-saving operation of changing the drag material.

[0046] As an optional implementation, the mounting cavity is provided with a first guide hole and a second guide hole. Specifically, a support is integrally provided on the top side of the base 11, and the first guide hole and the second guide hole are provided in a horizontal direction through the support.

[0047] The first guide rod 33 slides through the first guide hole; the second guide rod 34 slides through the second guide hole.

[0048] The guide hole provides precise guidance for the guide rod, allowing it to move along a fixed trajectory, avoiding deviation and ensuring movement stability.

[0049] As an optional implementation, the first clamping member 31 is hinged to the first guide rod 33 via a first hinge shaft, and the second clamping member 32 is hinged to the second guide rod 34 via a second hinge shaft. Both the first hinge shaft and the second hinge shaft are provided with torsion springs, and the first clamping member 31 and the second clamping member 32 are adapted to the height of the mounting cavity.

[0050] When the first clamping member 31 and the second clamping member 32 clamp the drag material, the torsion spring is in a deformed state.

[0051] During the replacement of the drag material, when the first clamping member 31 and the second clamping member 32 are moved out of the mounting clamping cavity, the limiting effect of the mounting clamping cavity on the first clamping member 31 and the second clamping member 32 is eliminated. Under the action of the torsion spring, the first clamping member 31 and the second clamping member 32 flip upward, thereby facilitating the clamping of the drag material.

[0052] As an optional implementation, the mop clamping device further includes a locking assembly 4, which includes a locking member 41 located in the mounting cavity. The locking member 41 is rotatably mounted on the base 11 and has a locking portion 411. The top cover 12 is provided with a locking portion 122 that is adapted to the locking portion 411.

[0053] When the locking part 411 is locked with the locking part 122, the relative position of the pressing top cover 12 can be locked, thereby keeping the material clamping assembly 3 firmly in the clamping state and ensuring the continuity of cleaning work.

[0054] Specifically, a support block 121 is provided on the bottom side of the pressing top cover 12, and a locking part 122 is provided as a locking post. The locking post is fixedly installed on the support block 121, and a locking part 411 is provided as a locking groove. The locking post is inserted into the locking groove and can slide along the locking groove.

[0055] In actual use, the user presses the top cover 12 with their foot, which pushes the locking member 41 to rotate. The locking pin slides along the locking groove until it slides out of the locking groove, thereby releasing the lock on the top cover 12.

[0056] As an optional implementation, the locking assembly 4 includes a third elastic element, which is configured as a torsion spring. The third elastic element is disposed on the locking member 41, and its two ends abut against the locking member 41 and the base 11 respectively. When the locking part 411 is locked with the locking part 122, the third elastic element deforms.

[0057] The process of replacing the drag material in this invention is briefly described as follows: In the initial state, the locking pin is inserted and locked in the locking groove, the top cover 12 is pressed into a horizontal state, and the first clamping member 31 and the second clamping member 32 cooperate with the two sides of the base 11 to firmly clamp the material to be replaced.

[0058] When removing the replacement material, the user steps on the top cover 12. Under the action of the stepping force, the top cover 12 rotates downward, and the locking member 41 rotates accordingly. The locking post slides along the locking groove and slides out of the locking groove. At this time, the locking effect of the locking member 41 on the top cover 12 is released. The third elastic member releases its elastic force to push the locking member 41 to rotate upward. The first elastic member 35 and the second elastic member 36 release their elastic force to push the first clamping member 31 and the second clamping member 32 to move in opposite directions, move out of the mounting cavity, and flip upward to open under the action of the torsion spring, releasing the material. During this process, the top cover 12 flips upward under the push of the connecting rod assembly 21.

[0059] When installing a new trailer, the user steps on the flip-up top cover 12. The top cover 12 drives the first clamping member 31 and the second clamping member 32 to move towards each other through the connecting rod assembly 21 and the gear rack assembly 22, clamping the new trailer. During this process, the locking pin slides into the locking groove and slides to the locking position, locking the top cover 12 to a horizontal state, and the replacement is completed.

[0060] In the description of this application, it should be understood that the terms "upper", "lower", "inner", "outer", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" or "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0062] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0063] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A mop with a clamping handle, characterized in that, The mop plate assembly, the transmission assembly and the mop material clamping assembly are provided, and the mop plate assembly comprises a base and a pressing top cover, a fixed edge of the pressing top cover is rotatably arranged on the base, an installation cavity is formed between the pressing top cover and the base, the transmission assembly and the mop material clamping assembly are arranged in the installation cavity, the pressing top cover is connected with the mop material clamping assembly through the transmission assembly. The movable edge of the pressing top cover is stepped on, and the pressing top cover can drive the mop material clamping assembly to clamp or release the mop material through the transmission assembly. The mop material clamping assembly comprises a first clamping piece and a second clamping piece arranged oppositely, wherein:

2. The mop of claim 1, wherein, The first clamping piece and the second clamping piece are movably arranged in the installation cavity; The first clamping piece and the second clamping piece are connected with the pressing top cover through the transmission assembly; The movable edge of the pressing top cover is rotated, and the first clamping piece and the second clamping piece can be driven to move away from each other or towards each other through the transmission assembly, so as to clamp or release the mop material in cooperation with the edge of the base. The transmission assembly comprises a connecting rod assembly and a gear and rack assembly, wherein:

3. The material gripping mop of claim 2, wherein, The pressing top cover is connected with the connecting rod assembly, the connecting rod assembly is connected with the gear and rack assembly, and the first clamping piece is connected with the second clamping piece through the gear and rack assembly. The gear and rack assembly comprises a first rack, a transmission gear and a second rack, wherein:

4. The material gripping mop of claim 3, wherein, The first rack is connected with the first clamping piece; The second rack is arranged in parallel with the first rack, and the second rack is connected with the second clamping piece; The transmission gear is arranged in meshing between the first rack and the second rack. First and second guide grooves are arranged in the installation cavity, wherein:

5. The material gripping mop of claim 4, wherein, The first rack is slidably arranged in the first guide groove; The second rack is slidably arranged in the second guide groove. The connecting rod assembly comprises a first connecting rod and a second connecting rod, wherein:

6. The mop of claim 5, wherein, A first end of the first connecting rod is rotatably connected with the pressing top cover, and a second end of the first connecting rod is rotatably connected with the first rack; A first end of the second connecting rod is rotatably arranged on the first connecting rod, and a second end of the second connecting rod is rotatably connected with the base. The first clamping piece is connected with a first guide rod, and the first guide rod is sleeved with a first elastic piece; 7. The material gripping mop of claim 2, wherein, The second clamping piece is connected with a second guide rod, and the second guide rod is sleeved with a second elastic piece; When the mop material clamping assembly is in the clamping state, the first elastic piece and the second elastic piece are deformed. First and second guide holes are arranged in the installation cavity, wherein:

8. The mop of claim 7, wherein, The first guide rod slides through the first guide hole; The second guide rod slides through the second guide hole. The mop material clamping mop further comprises a locking assembly, and the locking assembly comprises a locking piece, wherein:

9. The material gripping mop of claim 1, wherein, The locking piece is rotatably arranged in the installation cavity, and the locking piece is provided with a locking portion; The pressing top cover is provided with a locking portion matched with the locking portion; When the locking portion is locked with the locking portion, the mop material clamping assembly is in the clamping state. ​ 10. The mop of claim 9, wherein, The locking assembly comprises a third elastic member arranged on the locking member and abutting against the locking member and the base at two ends respectively; When the locking part is locked with the locking part, the third elastic member is deformed.