A head body rotation fixing device for a scrubber

Abstract

The utility model discloses a head body rotation fixing device for scrubber, including the head, the body still include setting in vertical fixed component on the body and setting in rotation component in the body, and rotation component includes setting in the body and both sides embedding in the head and vertical rotation on the head on vertical rotation shell, the upper end setting in the body lower part and the lower end horizontal rotation setting on vertical rotation shell on horizontal rotation shell, the lower end surface of horizontal rotation shell forms the arc rotation limiting slot, and the upper end surface of vertical rotation shell forms the horizontal rotation limiting block sliding on arc rotation limiting slot. The utility model its body can be horizontal rotation and vertical rotation on the head simultaneously, make the body can drive the head and clean in different positions, effectively reduce the situation that the dead angle can not clean, and also can fix the body on the head and realize the fixing between both when standing upright, satisfy different use demand, effectively improve the cleaning efficiency of scrubber.

Description

Technical Field

[0001] This utility model relates to the field of floor scrubber technology, and in particular to a rotating and fixing device for the machine head and body of a floor scrubber. Background Technology

[0002] Floor scrubbers are common cleaning products used in daily life, primarily replacing traditional vacuum cleaners, brooms, and mops. They utilize electrical energy to convert mechanical energy into cleaning and vacuuming functions. Conventional floor scrubbers typically have a fixed head, making it difficult to clean narrow, hard-to-reach areas such as under stools, in corners, and on table edges. While some models have been developed that allow the body to rotate vertically to reach under stools, they still struggle with irregularly shaped furniture or particularly difficult-to-reach corners. Therefore, there is a need for a device that allows the body and head to rotate freely, enabling the floor scrubber to clean various locations. Utility Model Content

[0003] To address the aforementioned shortcomings, the purpose of this utility model is to provide a rotating and fixing device for the machine head and body of a floor scrubber. The machine body can rotate horizontally and vertically on the machine head simultaneously, thereby allowing the machine body to drive the machine head to clean in different positions, effectively reducing the situation where dead corners cannot be cleaned. Furthermore, when standing upright, the machine body can also be fixed to the machine head to achieve a fixed relationship between the two, meeting different usage needs and effectively improving the cleaning efficiency of the floor scrubber.

[0004] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0005] A rotating and fixing device for a floor scrubber head and body includes a machine head, a body disposed on the machine head, a vertical fixing component disposed on the body, and a rotating component disposed within the body. The rotating component includes a vertical rotating housing disposed within the body and embedded in the machine head on both sides and rotating vertically on the machine head, and a horizontal rotating housing with its upper end disposed at the lower part of the body and its lower end horizontally rotatably disposed on the vertical rotating housing. An arc-shaped rotating limiting groove is formed on the lower end surface of the horizontal rotating housing, and a horizontal rotating limiting block that slides on the arc-shaped rotating limiting groove is formed on the upper end surface of the vertical rotating housing.

[0006] As a further improvement of this utility model, a first rotating flange is formed on the upper surface of the vertical rotating housing, and a second rotating flange matching the first rotating flange is formed on the horizontal rotating housing. The rotating assembly also includes a rotating fixing ring sleeved on the outside of the first rotating flange and the second rotating flange.

[0007] As a further improvement of this utility model, the upper end of the vertical rotating housing is inclined from a high position near the rotating component to a low position away from the rotating component; the lower end of the horizontal rotating housing matches the upper end of the vertical rotating housing, and its lower end is inclined from a high position near the rotating component to a low position away from the rotating component.

[0008] As a further improvement of this utility model, the rotating assembly also includes a rotating fixed housing sleeved outside the vertical rotating housing and the horizontal rotating housing, with its lower end matched with the vertical rotating housing.

[0009] As a further improvement of this utility model, the vertical fixing component includes a vertical outer limiting member slidably disposed on the rotating fixing shell, a vertical inner limiting member fixedly disposed within the vertical outer limiting member and with its upper end embedded in the horizontal rotating shell, and a vertical elastic member with its upper end hooked on the vertical inner limiting member and its lower end hooked in the rotating fixing shell.

[0010] As a further improvement of this utility model, the lower end of the vertical outer limiting member is formed with an outwardly protruding vertical outer limiting block, and the machine head is formed with a vertical outer fixing groove for the lower part of the vertical outer limiting block to be inserted.

[0011] As a further improvement of this utility model, at least one protruding ridge is formed on the inner wall of the vertical outer fixing groove, which protrudes inward.

[0012] As a further improvement of this utility model, a vertical inner limiting block is formed on the inner side of the vertical inner limiting member, which extends upward and tilts towards the center of the horizontal rotating housing, and a vertical inner limiting groove is formed on the lower end surface of the horizontal rotating housing for the vertical inner limiting block to be embedded.

[0013] As a further improvement of this utility model, the inner side of the vertical inner limiting member has a first hook portion that protrudes in the direction of vertical rotation of the outer shell and is generally semi-circular, and the inner side of the rotating fixed outer shell has a second hook portion that protrudes in the direction of vertical rotation of the outer shell and is generally semi-circular. The upper end of the vertical elastic member is hooked on the first hook portion, and the lower end is hooked on the second hook portion.

[0014] The beneficial effects of this utility model are as follows:

[0015] The machine head and body rotation and fixing device is configured to include a machine head, a body mounted on the machine head, a vertical fixing component mounted on the body, and a rotating component located within the body. The vertical fixing component secures the body to the machine head in a vertically upright position, preventing the body from rotating during use, which would hinder force application, or causing it to tip over during charging. The rotating component, located within the body, allows the body to rotate vertically and / or horizontally relative to the machine head, enabling the body to drive the machine head to clean different areas, effectively reducing hard-to-clean corners. The vertical fixing component and the rotating component work together to provide different usage modes for users, meeting the needs of different users, effectively improving the cleaning efficiency of the floor scrubber, and enhancing its practicality.

[0016] The rotating assembly includes a vertically rotating outer shell disposed within the machine body and embedded in the machine head on both sides, rotating vertically on the machine head; and a horizontally rotating outer shell with its upper end disposed at the lower part of the machine body and its lower end horizontally rotating on the vertically rotating outer shell. An arc-shaped rotation limiting groove is formed on the lower end surface of the horizontally rotating outer shell, and a horizontally rotating limiting block that slides on the arc-shaped rotation limiting groove is formed on the upper end surface of the vertically rotating outer shell. When an external force is applied vertically to the machine body, the vertically rotating outer shell, with its two sides embedded in the machine head as its axis, allows the machine body to rotate vertically on the machine head. The horizontally rotating outer shell, when an external force is applied, rotates horizontally on the vertically rotating outer shell, allowing the machine body to rotate vertically, horizontally, or both simultaneously, forming multi-angle and multi-directional rotation to meet the needs of different users. This allows the machine body to drive the machine head to clean different positions, effectively reducing the number of blind spots that cannot be cleaned, effectively improving the cleaning efficiency of the floor scrubber, and enhancing its practicality. By setting an arc-shaped rotation limiting groove on the horizontal rotating outer shell and a horizontal rotation limiting block on the vertical rotating outer shell, when the horizontal rotating outer shell rotates horizontally on the vertical rotating outer shell, it drives the arc-shaped rotation limiting groove on it to rotate. The horizontal rotation limiting block rotates relative to the arc-shaped rotation limiting groove and is limited by the arc length of the arc-shaped rotation limiting groove, thereby limiting the angle of horizontal rotation of the horizontal rotating outer shell. This prevents the floor scrubber from malfunctioning due to excessive rotation of the horizontal rotating outer shell and facilitates the cooperation between the various components.

[0017] The above is an overview of the utility model's technical solution. The following description, in conjunction with the accompanying drawings and specific embodiments, will further illustrate the utility model. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall design of this utility model;

[0019] Figure 2 This is a structural diagram of the head, fuselage, vertical fixing components, and rotating components after removing some of the structural elements.

[0020] Figure 3 This is an exploded view of the nose, fuselage, vertically fixed components, and rotating components after removing some structural elements.

[0021] Figure 4 Schematic diagrams of the vertically rotating outer shell and the horizontally rotating outer shell;

[0022] Figure 5 This is a schematic diagram of the bottom of the horizontally rotating outer casing;

[0023] Figure 6 This is a schematic diagram of the top of the vertically rotating outer casing;

[0024] Figure 7 This is a schematic diagram of the inner surface of a vertically fixed structure.

[0025] Figure 8 This is a partial structural diagram of the nose section;

[0026] In the diagram: 1. Machine head; 11. Vertical outer fixing groove; 111. Protruding rib; 2. Machine body; 3. Vertical fixing assembly; 31. Vertical outer limiting component; 311. Vertical outer limiting block; 32. Vertical inner limiting component; 321. Vertical inner limiting block; 322. First hook part; 33. Vertical elastic component; 4. Rotating assembly; 41. Vertical rotating shell; 411. Horizontal rotating limiting block; 412. First rotating flange; 42. Horizontal rotating shell; 421. Arc-shaped rotating limiting groove; 422. Second rotating flange; 423. Vertical inner limiting groove; 43. Rotating fixing ring; 44. Rotating fixing shell; 441. Second hook part. Detailed Implementation

[0027] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods of this utility model will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0028] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 utility model 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 utility model.

[0029] 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 one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "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 mechanical connection or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Please refer to Figures 1 to 8 This utility model embodiment provides a rotating and fixing device for a machine head 1 and body 2 on a floor scrubber, including a machine head 1, a body 2 disposed on the machine head 1, a vertical fixing component 3 disposed on the body 2, and a rotating component 4 disposed within the body 2. The rotating component 4 includes a vertical rotating outer shell 41 disposed within the body 2 and embedded in the machine head 1 on both sides and rotating vertically on the machine head 1, and a horizontal rotating outer shell 42 disposed at the lower part of the body 2 and horizontally rotatably disposed on the vertical rotating outer shell 41. An arc-shaped rotating limiting groove 421 is formed on the lower end surface of the horizontal rotating outer shell 42, and a horizontal rotating limiting block 411 that slides on the arc-shaped rotating limiting groove 421 is formed on the upper end surface of the vertical rotating outer shell 41.

[0032] The machine head 1 and body 2 rotation and fixing device is configured to include a machine head 1, a body 2 mounted on the machine head 1, a vertical fixing component 3 mounted on the body 2, and a rotating component 4 disposed within the body 2. The vertical fixing component 3 fixes the body 2 to the machine head 1 in a vertically upright position, thus achieving vertical fixation of the body 2 and preventing situations such as the body 2 being difficult to rotate during use or tipping over during charging. The rotating component 4, disposed within the body 2, allows the body 2 to rotate vertically and / or horizontally relative to the machine head 1, enabling the body 2 to drive the machine head 1 to clean different areas, effectively reducing the number of hard-to-clean corners. The vertical fixing component 3 and the rotating component 4 work together to provide different usage methods for users, thereby meeting the needs of different users, effectively improving the cleaning efficiency of the floor scrubber, and enhancing its practicality.

[0033] The rotating assembly 4 includes a vertically rotating outer shell 41 disposed within the body 2 and embedded in the head 1 on both sides, rotating vertically on the head 1; and a horizontally rotating outer shell 42 with its upper end disposed at the lower part of the body 2 and its lower end horizontally rotatably disposed on the vertically rotating outer shell 41. An arc-shaped rotation limiting groove 421 is formed on the lower end surface of the horizontally rotating outer shell 42, and a horizontally rotating limiting block 411 that slides on the arc-shaped rotation limiting groove 421 is formed on the upper end surface of the vertically rotating outer shell 41. When an external force is applied vertically to the body 2 with the two sides of the vertically rotating outer shell 41 embedded in the head 1 as its axis, the body 2 can rotate vertically on the head 1. When an external force is applied, the horizontally rotating outer shell 42 is horizontally mounted on the vertically rotating outer shell 41. In conjunction with the vertically rotating outer shell 41, the machine body 2 can rotate vertically alone, rotate horizontally alone, or rotate both vertically and horizontally simultaneously, forming multi-angle and multi-directional rotation to meet the needs of different users. This allows the machine body 2 to drive the machine head 1 to clean in different positions, effectively reducing the situation where dead corners cannot be cleaned, effectively improving the cleaning efficiency of the floor scrubber, and enhancing the practicality of the floor scrubber. By providing an arc-shaped rotation limiting groove 421 on the horizontal rotating outer shell 42 and a horizontal rotation limiting block 411 on the vertical rotating outer shell 41, when the horizontal rotating outer shell 42 rotates horizontally on the vertical rotating outer shell 41, it drives the arc-shaped rotation limiting groove 421 to rotate. The horizontal rotation limiting block 411 rotates relative to the arc-shaped rotation limiting groove 421 and is limited by the arc-shaped structure and length of the arc-shaped rotation limiting groove 421. This limits the range of horizontal rotation angle of the horizontal rotating outer shell 42, preventing excessive rotation of the horizontal rotating outer shell 42 from causing the floor scrubber to malfunction and facilitating the coordination between components. The length of the arc-shaped rotation limiting groove 421 can be set according to the situation. It can be set to allow the horizontal rotating outer shell 42 to rotate 30 degrees, 45 degrees, 60 degrees, etc., to the left and right, respectively. Its left and right lengths and arcs can also be set separately, so no specific limitation is made in this embodiment.

[0034] To prevent the horizontally rotating housing 42 from detaching from the vertically rotating housing 41, such as Figures 3 to 6As shown, a first rotating flange 412 is formed on the upper surface of the vertical rotating housing 41, and a second rotating flange 422 matching the first rotating flange 412 is formed on the horizontal rotating housing 42. The rotating assembly 4 also includes a rotating fixing ring 43 sleeved on the outside of the first rotating flange 412 and the second rotating flange 422. By sleeved on the outside of the first rotating flange 412 and the second rotating flange 422 by the rotating fixing ring 43, the first rotating flange 412 and the second rotating flange 422 are fixed from the outside, preventing the horizontal rotating housing 42 from shifting or falling off the vertical rotating housing 41, ensuring the normal operation of the floor scrubber, and facilitating the cooperation between the components.

[0035] Preferred, such as Figures 1 to 6 As shown, in order to make it easier for the machine head 1 and body 2 to clean the dead corners after they rotate, the upper end of the vertical rotating housing 41 is inclined from a high point near the rotating component 4 to a low point away from the rotating component 4; the lower end of the horizontal rotating housing 42 matches the upper end of the vertical rotating housing 41, and its lower end is inclined from a high point near the rotating component 4 to a low point away from the rotating component 4. This makes the horizontal rotating housing 42 rotate with an inclined angle when it rotates on the vertical rotating housing 41. Its inclined structure makes it easier for the body 2 to rotate at an equal angle relative to the side and rear of the machine head 1, so that the body 2 can drive the rotated machine head 1 to clean the dead corners more easily, effectively improving the cleaning efficiency of the floor scrubber and improving the practicality of the floor scrubber.

[0036] For other structural configurations of the rotating assembly 4, such as Figures 1 to 3 as well as Figure 7 As shown, the rotating assembly 4 also includes a rotating fixed housing 44 that is sleeved on the vertical rotating housing 41 and the horizontal rotating housing 42 and whose lower end matches the vertical rotating housing 41. The rotating fixed housing 44 wraps the first rotating flange 412, the second rotating flange 422, the rotating fixed ring 43, etc., to protect the internal structure.

[0037] Regarding the specific structural configuration of the vertical fixing component 3, as follows: Figures 2 to 3 , Figure 7As shown, the vertical fixing component 3 includes a vertical outer limiting member 31 slidably disposed on the rotating fixing housing 44, a vertical inner limiting member 32 fixedly disposed within the vertical outer limiting member 31 and with its upper end embedded in the horizontal rotating housing 42, and a vertical elastic member 33 with its upper end hooked on the vertical inner limiting member 32 and its lower end hooked in the rotating fixing housing 44. When it is necessary to vertically fix the body 2 to the head 1, rotate the body 2. The vertically rotating outer shell 41 rotates vertically to the head 1. After rotating to a certain extent, the vertical outer limiter 31 presses against the head 1. Continue to rotate vertically. Since the vertical outer limiter 31 presses against the head 1, it causes the vertical outer limiter 31 to drive the vertical inner limiter 32 to move upward. The vertical elastic member 33 is hooked on the vertical inner limiter 32 and is driven to stretch and deform. After the vertical inner limiter 32 moves upward, its front end is placed inside the horizontally rotating outer shell 42, so that the horizontally rotating outer shell 42 cannot rotate horizontally. Without external force applied, the vertically rotating outer shell 41 cannot rotate vertically on its own. This achieves the purpose of vertically fixing the body 2 to the head 1, preventing the body 2 from rotating and causing it to be difficult to apply force during use or to fall over during charging. When the machine body 2 is not required to stand vertically on the machine head 1, the machine body 2 rotates vertically in the opposite direction. The vertical outer limit member 31 moves away from the machine head 1. Under the action of its own elastic restoring force, the vertical elastic member 33 pulls the vertical inner limit member 32 and drives the vertical outer limit member 31 to move downward, so that the vertical outer limit member 31 returns to its original position. The upper end of the vertical inner limit member 32 moves away from the horizontal rotating outer shell 42. At this time, the machine body 2 can rotate freely on the machine head 1. The whole process is simple to operate, has a simple structure, and offers multiple different modes for users to choose from, which is beneficial for people's daily use and improves the practicality of the floor scrubber.

[0038] Regarding the specific structural configuration of the vertical elastic element 33, as follows: Figure 7 As shown, the vertical elastic element 33 is a tension spring. Tension springs have high tensile strength and fatigue life, can withstand repeated compressive loads without easily being damaged or failing, and are inexpensive. In addition to effectively ensuring the service life of the rotating and fixing device of the machine head 1 and body 2, they also effectively reduce the production cost of the rotating and fixing device of the machine head 1 and body 2.

[0039] The specific method by which the vertical outer limiting member 31 is fixed against the machine head 1 is as follows: Figure 3 and Figure 7As shown, the lower end of the vertical outer limiting member 31 has an outwardly protruding vertical outer limiting block 311. The machine head 1 has a vertical outer fixing groove 11 for the lower part of the vertical outer limiting block 311 to be inserted. When the machine body 2 needs to be fixed to the machine head 1, the vertical outer limiting block 311 at the lower end of the vertical outer limiting member 31 is inserted into the vertical outer fixing groove 11 and thus is limited and fixed by the vertical outer fixing groove 11. Without the action of external force, it cannot be detached from the vertical outer fixing groove 11, thereby achieving the purpose of fixing the machine head 1 to the machine body 2.

[0040] Preferred, such as Figures 1 to 3 As shown, when the body 2 is fixed to the head 1, it is tilted towards the vertical outer fixing groove 11 and is not completely vertical. This allows the vertical outer limiting block 311 to be more firmly placed into the vertical outer fixing groove 11 under the weight of the body 2 itself, and it cannot be detached without external force, thus achieving the purpose of stably fixing the body 2 to the head 1.

[0041] Preferred, such as Figure 8 As shown, in order to make the vertical outer limiting block 311 more efficient when disengaging from the vertical outer fixing groove 11, at least one protruding ridge 111 is formed on the inner wall of the vertical outer fixing groove 11. The protruding ridge 111 separates the vertical outer limiting block 311 from the inner wall of the vertical outer fixing groove 11, thereby reducing the contact area between the vertical outer limiting block 311 and the vertical outer fixing groove 11. This effectively reduces the friction force when the vertical outer limiting block 311 disengages from the vertical outer fixing groove 11, thus making the vertical outer limiting block 311 more efficient when disengaging from the vertical outer fixing groove 11. This makes it easier for people to move the vertical outer limiting block 311 away from the vertical outer fixing groove 11 to rotate the body 2, improving the user experience.

[0042] The specific method by which the vertical inner limiting member 32 is placed on the horizontal rotating outer shell 42 is as follows: Figure 3 and Figure 5 and Figure 7 As shown, a vertical inner limiting block 321 is formed on the inner side of the vertical inner limiting member 32, which extends upwards and tilts towards the center of the horizontal rotating housing 42. A vertical inner limiting groove 423 is formed on the lower end surface of the horizontal rotating housing 42 for the vertical inner limiting block 321 to be embedded. By setting the vertical inner limiting block 321 to an upward tilting structure towards the center of the horizontal rotating housing 42, it better conforms to the trajectory of the vertical rotation of the body 2. Furthermore, the tilted structure is easier to fit into the vertical inner limiting groove 423 during rotation, thereby improving the efficiency of fixing the body 2 to the head 1 and enhancing the user experience.

[0043] The specific manner in which the vertical elastic element 33 is hooked onto the vertical inner limiting element 32 and the rotating fixed outer shell 44 is as follows: Figure 7 As shown, the inner side of the vertical inner limiting member 32 has a first hook portion 322 that protrudes towards the vertical rotating outer shell 41 and is semi-circular in shape. The inner side of the rotating fixed outer shell 44 has a second hook portion 441 that protrudes towards the vertical rotating outer shell 41 and is semi-circular in shape. The upper end of the vertical elastic member 33 is hooked on the first hook portion 322 and the lower end is hooked on the second hook portion 441, thereby achieving stable positioning of the vertical elastic member 33 and ensuring the normal operation of the vertical fixing assembly 3.

[0044] The specific method by which the vertical inner limiting member 32 is fixed to the vertical outer limiting member 31 is as follows: Figure 7 As shown, the vertical inner limiting member 32 has a through hole in the middle for the external screw to pass through. The external screw passes through the vertical inner limiting member 32 and the vertical outer limiting member 31 in sequence, thereby fixing the vertical inner limiting member 32 to the vertical outer limiting member 31.

[0045] Preferred, such as Figure 3 and Figure 7 As shown, a clearance groove is also formed between the through hole and the vertical inner limiting block 321 to allow the rotating fixing ring 43 to make way. This makes the structure more compact without hindering the operation of each component, saves overall space, effectively reduces the overall size of the floor scrubber, and further improves the user experience.

[0046] Regarding the specific structure of the aforementioned nose 1 and fuselage 2, as follows: Figure 1 As shown, the machine head 1 may include a roller brush, a dust brush, a wastewater tank, a clean water tank, etc., and the machine body 2 may include a handle, a clean water tank, a motor, etc. The machine head 1 and the machine body 2 are conventional components in the art, and their structures and operating principles are existing technologies. They can be set according to actual conditions, so they will not be described in detail in this embodiment.

[0047] It should be noted that the head and body rotation and fixing device for floor scrubbers disclosed in this utility model is an improvement on the specific structure, but the specific control method is not an innovation of this utility model. The head, body, tension spring, handle, water tank, motor, roller brush, dust brush, and other components involved in this utility model can be general standard parts or components known to those skilled in the art. Their structure, principle, and control method are all known to those skilled in the art through technical manuals or conventional experimental methods.

[0048] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, other structures obtained by using the same or similar technical features as the above embodiments of the present utility model are all within the protection scope of the present utility model.

Claims

1. A head and body rotation and fixing device for a floor scrubber, comprising a head and a body disposed on the head, characterized in that: It also includes a vertically fixed component disposed on the body and a rotating component disposed within the body. The rotating component includes a vertically rotating outer shell disposed within the body and embedded in the head on both sides and rotating vertically on the head, and a horizontally rotating outer shell with its upper end disposed at the lower part of the body and its lower end horizontally rotating on the vertically rotating outer shell. An arc-shaped rotation limiting groove is formed on the lower end surface of the horizontally rotating outer shell, and a horizontally rotating limiting block that slides on the arc-shaped rotation limiting groove is formed on the upper end surface of the vertically rotating outer shell.

2. The head and body rotation fixing device for a floor scrubber according to claim 1, characterized in that: A first rotating flange is formed on the upper surface of the vertical rotating housing, and a second rotating flange matching the first rotating flange is formed on the horizontal rotating housing. The rotating assembly also includes a rotating fixing ring sleeved on the outside of the first rotating flange and the second rotating flange.

3. The head and body rotation fixing device for a floor scrubber according to claim 1, characterized in that: The upper end of the vertical rotating housing is inclined from a high position near the rotating assembly to a low position away from the rotating assembly; the lower end of the horizontal rotating housing matches the upper end of the vertical rotating housing, and its lower end is inclined from a high position near the rotating assembly to a low position away from the rotating assembly.

4. The head and body rotation fixing device for a floor scrubber according to claim 1, characterized in that: The rotating assembly also includes a rotating fixed housing that is sleeved outside the vertical rotating housing and the horizontal rotating housing and whose lower end matches the vertical rotating housing.

5. The head and body rotation fixing device for a floor scrubber according to claim 4, characterized in that: The vertical fixing assembly includes a vertical outer limiting member slidably disposed on the rotating fixing shell, a vertical inner limiting member fixedly disposed within the vertical outer limiting member and with its upper end embedded in the horizontal rotating shell, and a vertical elastic member with its upper end hooked on the vertical inner limiting member and its lower end hooked in the rotating fixing shell.

6. The head and body rotation fixing device for a floor scrubber according to claim 5, characterized in that: The lower end of the vertical outer limiting member has an outwardly protruding vertical outer limiting block, and the machine head has a vertical outer fixing groove for the lower part of the vertical outer limiting block to be inserted.

7. The head and body rotation fixing device for a floor scrubber according to claim 6, characterized in that: At least one protruding ridge is formed on the inner wall of the vertical outer fixing groove, protruding inward.

8. The head and body rotation fixing device for a floor scrubber according to claim 5, characterized in that: The inner side of the vertical inner limiting member has a vertical inner limiting block that extends upwards and tilts toward the center of the interior of the horizontal rotating housing, and a vertical inner limiting groove is formed on the lower end surface of the horizontal rotating housing for the vertical inner limiting block to be embedded.

9. The head and body rotation fixing device for a floor scrubber according to claim 5, characterized in that: The inner side of the vertical inner limiting member has a first hook portion that protrudes in the direction of vertical rotation of the outer shell and is semi-circular in shape. The inner side of the rotating fixed outer shell has a second hook portion that protrudes in the direction of vertical rotation of the outer shell and is semi-circular in shape. The upper end of the vertical elastic member is hooked on the first hook portion, and the lower end is hooked on the second hook portion.

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