Rotary seamless switching structure and tissue holder

Abstract

The utility model discloses a rotary seamless switching structure and a tissue holder, and the rotary seamless switching structure comprises a fixed rod, a rotary shaft and a rotary shaft, the opposite end faces of the rotating rod and the fixed rod are attached to each other and are in inclined surface transmission fit, and the rotating rod is rotationally connected to the fixed rod and drives the rotating rod to be switched between a quick change state and a use state; when the rotating rod is in the quick change state, the center line of the rotating rod coincides with the center line of the fixed rod, so that a hollow object passes through the rotating rod and is arranged on the fixed rod in a sleeving manner; when the rotating rod is in the using state, the center line of the rotating rod and the center line of the fixed rod are inclined so as to prevent the hollow object from being separated from the fixed rod from the rotating rod. The rotating rod and the fixed rod are designed to be in slope transmission fit, and the rotating rod is allowed to be rotationally connected relative to the fixed rod, so that the rotating rod is switched between a quick change state and a use state, the use safety and convenience are improved, the structure is simple and efficient, and daily operation of a user is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical switching structures, in particular to a seamless rotation switching structure and a paper towel holder with a seamless rotation switching structure. Background Art

[0002] With the acceleration of the modern life rhythm and the improvement of people's living standards, the requirements for daily necessities are also getting higher and higher. Especially in office and home environments, the demand for quickly replacing hollow-shaped items is becoming increasingly prominent. For example, the replacement of the paper towel roll on a paper towel holder is a typical example. Most traditional paper towel holders adopt a fixed design. When replacing the paper towel roll, it is often necessary to manually screw out the fixing rod or disassemble the entire paper towel holder. This replacement method is not only time-consuming and laborious, but also not convenient enough for the need of frequent replacement.

[0003] In addition, during the actual use process, due to the limitation of the fixing method, the paper towel roll is easily affected by external forces and shifted or even fallen off, bringing inconvenience to users. Especially in public places, such as offices, meeting rooms, etc., if the paper towel roll frequently falls off, it not only affects the appearance, but also may cause hygiene problems. Therefore, how to design a paper towel holder that can not only replace the paper towel roll conveniently and quickly, but also ensure that it is not easy to fall off during use has become an urgent technical problem to be solved currently.

[0004] Although there are some improved paper towel holders on the market currently, which try to simplify the replacement process in various ways, most of the solutions still have problems such as complex structure, high cost or insufficient reliability. For example, some designs adopt a spring-loaded ejection mechanism to achieve quick replacement, but this increases the manufacturing difficulty and cost; there are also some designs that fix by magnetic attraction, but it is easy for the paper towel roll to become loose due to insufficient magnetic force during use.

[0005] In summary, the paper towel holders in the prior art fail to well solve the stability problem during use while meeting the requirement of quick replacement, and generally have the disadvantages of complex structure and high cost. Therefore, it is urgent to develop a paper towel holder with a simple structure, convenient operation and effective prevention of the hollow-shaped item from falling off. Summary of the Utility Model

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a seamless rotation switching structure, which realizes the quick replacement of the hollow-shaped item and the stable fixation during use, with simple operation and reliable structure. It not only improves the replacement efficiency, but also enhances the safety during use, is applicable to various scenarios, and greatly improves the user experience.

[0007] The utility model also provides a paper towel holder with the above seamless rotation switching structure.

[0008] The rotation seamless switching structure according to the present utility model includes:

[0009] A fixed rod;

[0010] A rotating rod, the end faces of the rotating rod and the fixed rod facing each other are in contact and are in inclined surface transmission cooperation. The rotating rod is rotatably connected to the fixed rod and drives the rotating rod to switch between a quick change state and a use state;

[0011] When the rotating rod is in the quick change state, the central axis of the rotating rod coincides with the central axis of the fixed rod, so that a hollow article can pass through the rotating rod and be sleeved on the fixed rod;

[0012] When the rotating rod is in the use state, the central axis of the rotating rod is inclined to the central axis of the fixed rod to prevent the hollow article from detaching from the fixed rod at the rotating rod.

[0013] The rotation seamless switching structure according to the present utility model has at least the following beneficial effects: By designing the form of inclined surface transmission cooperation between the rotating rod and the fixed rod and allowing the rotating rod to be rotatably connected to the fixed rod, the switching between the quick change state and the use state of the rotating rod is realized. Among them, in the quick change state, the central axis of the rotating rod coincides with the central axis of the fixed rod, which is convenient for the user to quickly pass a hollow article, such as a paper towel roll, through the rotating rod and install it on the fixed rod; while in the use state, the central axis of the rotating rod forms a certain angle with the central axis of the fixed rod, which can effectively prevent the hollow article from accidentally falling off the fixed rod, improving the safety and convenience of use. This structure is simple and efficient, greatly facilitating the daily operation of the user.

[0014] According to some embodiments of the present utility model, for the rotation seamless switching structure, an arc-shaped limiting groove is provided on the end face of the fixed rod facing the rotating rod, and a limiting protrusion is provided on the end face of the rotating rod facing the fixed rod. The limiting protrusion is slidably arranged in the limiting groove.

[0015] According to some embodiments of the present utility model, for the rotation seamless switching structure, the central angle corresponding to the limiting groove is 180°. When the rotating rod is in the use state, the central axis of the rotating rod is perpendicular to the central axis of the fixed rod.

[0016] According to some embodiments of the present utility model, for the rotation seamless switching structure, it further includes a connecting component. A first connecting hole is provided in the middle of the end face of the fixed rod facing the rotating rod, and a second connecting hole is provided in the middle of the end face of the rotating rod facing the fixed rod. The rotating rod and the fixed rod are connected by a connecting component located at the first connecting hole and the second connecting hole.

[0017] According to the rotational seamless switching structure described in some embodiments of the utility model, the connecting component includes a first fastener and a second fastener, the first fastener is passed through the first connecting hole, the second fastener is passed through the second connecting hole, and the tail of the first fastener and the tail of the second fastener are threadedly connected.

[0018] According to the rotating seamless switching structure described in some embodiments of the utility model, the first connecting hole and the second connecting hole are both countersunk clearance holes, the head of the first fastener is placed in the first connecting hole, and the head of the second fastener is placed in the second connecting hole.

[0019] According to the rotation seamless switching structure described in some embodiments of the present utility model, the fixed rod and the rotating rod are both cylindrical.

[0020] According to the rotation seamless switching structure described in some embodiments of the utility model, the peripheral wall of the fixed rod is provided with a first identification portion, and the peripheral wall of the rotating rod is provided with a second identification portion, and the second identification portion is suitable for aligning with the first identification portion.

[0021] According to the rotation seamless switching structure described in some embodiments of the present utility model, the outer diameter of the rotating rod is equal to the outer diameter of the fixed rod, and the length of the rotating rod is smaller than the length of the fixed rod.

[0022] According to the paper towel rack described in the utility model, it includes the rotating seamless switching structure described in the utility model; a mounting piece is provided at one end of the fixed rod away from the rotating rod, and the mounting piece is used to install the fixed rod; the outer diameters of the rotating rod and the fixed rod are both smaller than the inner diameter of the paper tube.

[0023] The paper towel rack of the utility model has at least the following beneficial effects: by arranging a mounting piece at one end of the fixed rod away from the rotating rod, the entire device can be conveniently mounted on a wall or other supporting objects. In addition, by setting the outer diameters of the rotating rod and the fixed rod to be smaller than the inner diameter of the paper roll, it is ensured that the paper towel roll can be smoothly mounted on the fixed rod and will not easily slip off when in use, thus meeting the dual requirements of quick replacement and stable use.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1Exploded view of the rotation seamless switching structure of the embodiment of the present utility model in the quick replacement state;

[0027] Figure 2 Schematic structural view of the rotating rod of the rotation seamless switching structure of the embodiment of the present utility model;

[0028] Figure 3 Schematic cross-sectional structural view of the rotation seamless switching structure of the embodiment of the present utility model in the use state;

[0029] Figure 4 Schematic view of the vertical paper towel holder applying the rotation seamless switching structure of the embodiment of the present utility model in the use state;

[0030] Figure 5 Schematic view of the vertical paper towel holder applying the rotation seamless switching structure of the embodiment of the present utility model in the quick replacement state;

[0031] Figure 6 Schematic view of the cabinet paper towel holder applying the rotation seamless switching structure of the embodiment of the present utility model in the use state;

[0032] Figure 7 Schematic view of the toilet paper towel holder applying the rotation seamless switching structure of the embodiment of the present utility model in the use state.

[0033] Explanation of the reference numerals in the drawings:

[0034] Fixed rod 100; Limit groove 101; First connection hole 102; First identification part 110;

[0035] Rotating rod 200; Second connection hole 201; Limit protrusion 210; Second identification part 220;

[0036] First fastener 310; Second fastener 320;

[0037] Mounting part 400. Detailed implementation manners

[0038] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0039] In the description of the present utility model, it should be understood that with regard to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0040] In the description of the present utility model, the meaning of "a number of" is one or more, the meaning of "a plurality of" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first", "second", etc., it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0041] In the description of the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0042] In the description of the present utility model, the description with reference to terms such as "an embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0043] With the acceleration of the modern life rhythm and the improvement of people's living standards, the requirements for daily necessities are also getting higher and higher. Especially in the office and home environments, the need to quickly replace hollow items is becoming increasingly prominent. For example, the replacement of the paper towel roll on a paper towel holder is a typical example. Most traditional paper towel holders adopt a fixed design. When replacing the paper towel roll, it is often necessary to manually screw out the fixing rod or disassemble the entire paper towel holder. This replacement method is not only time-consuming and laborious, but also not convenient enough for the need of frequent replacement.

[0044] In addition, during actual use, due to limitations in the fixing method, the paper towel roll is prone to being affected by external forces and shifting or even falling off, causing inconvenience to users. Especially in public places such as offices and meeting rooms, if the paper towel roll frequently falls off, it not only affects the appearance but may also cause hygiene problems. Therefore, how to design a paper towel holder that can replace the paper towel roll conveniently and quickly while ensuring that it is not easily detached during use has become a technical problem that urgently needs to be solved currently.

[0045] Although there are some improved paper towel holders on the market that attempt to simplify the replacement process in various ways, most solutions still have problems such as complex structures, high costs, or insufficient reliability. For example, some designs use a spring-loaded ejection mechanism to achieve quick replacement, but this increases the manufacturing difficulty and cost; there are also some designs that use magnetic attraction for fixation, but the paper towel roll is prone to loosening due to insufficient magnetic force during use.

[0046] In summary, the paper towel holders in the prior art fail to well solve the stability problem during use while meeting the requirement of quick replacement, and generally have the disadvantages of complex structures and high costs. Therefore, there is an urgent need to develop a paper towel holder with a simple structure, convenient operation, and effective prevention of the hollow-shaped item from falling off.

[0047] For this reason, as Figures 1 to 3As shown, the rotation seamless switching structure proposed by the present utility model includes a fixed rod 100 and a rotating rod 200. Among them, the end faces of the rotating rod 200 opposite to the fixed rod 100 are mutually attached and are in inclined surface transmission cooperation. Moreover, the rotating rod 200 is rotatably connected to the fixed rod 100 to drive the rotating rod 200 to switch between the quick-change state and the use state. In application, when the rotating rod 200 is in the quick-change state, the center line of the rotating rod 200 coincides with the center line of the fixed rod 100 to allow a hollow article to pass through the rotating rod 200 and be sleeved on the fixed rod 100; when the rotating rod 200 is in the use state, the center line of the rotating rod 200 is inclined with respect to the center line of the fixed rod 100 to prevent the hollow article from detaching from the fixed rod 100 at the rotating rod 200. It should be noted that by designing the form of inclined surface transmission cooperation between the rotating rod 200 and the fixed rod 100 and allowing the rotating rod 200 to be rotatably connected to the fixed rod 100, the switching between the quick-change state and the use state of the rotating rod 200 is realized. Among them, in the quick-change state, the center line of the rotating rod 200 coincides with the center line of the fixed rod 100, which is convenient for the user to quickly pass a hollow article, such as a paper towel roll, through the rotating rod 200 and install it on the fixed rod 100; while in the use state, the center line of the rotating rod 200 forms a certain angle with the center line of the fixed rod 100, which can effectively prevent the hollow article from accidentally falling off the fixed rod 100, improving the safety and convenience of use. This structure is simple and efficient, greatly facilitating the daily operation of the user.

[0048] Refer again to Figure 1 and Figure 2, in some embodiments of the present utility model, the end face of the fixed rod 100 facing the rotating rod 200 is provided with an arc-shaped limiting groove 101, and the end face of the rotating rod 200 facing the fixed rod 100 is provided with a limiting protrusion 210. The limiting protrusion 210 is slidably arranged in the limiting groove 101, ensuring a smooth switching between the quick-change state and the use state of the rotating rod 200. This design not only makes the positioning of the rotating rod 200 more accurate, but also enhances the structural stability, avoiding the problem of the position deviation of the rotating rod 200 caused by external vibration or other factors during use. Specifically, the central angle corresponding to the limiting groove 101 is 180°. When the rotating rod 200 is in the use state, the central axis of the rotating rod 200 is perpendicularly arranged to the central axis of the fixed rod 100. This enables the rotating rod 200 to more firmly limit the hollow-shaped article in the use state, effectively preventing the article from falling off, and at the same time facilitating the user to intuitively judge whether the rotating rod 200 is in the correct use position, improving the safety and convenience of use. In addition, in some embodiments of the present utility model, the peripheral wall of the fixed rod 100 is provided with a first marking portion 110, and the peripheral wall of the rotating rod 200 is provided with a second marking portion 220. The second marking portion 220 is adapted to be aligned with the first marking portion 110. Furthermore, a clear operation indication is provided for the user, helping the user quickly find the correct quick-change or use position, improving the operation efficiency. In addition, the presence of the marking portion also helps the user to operate in the dark or in poor visibility conditions.

[0049] Referring again to Figure 3, in some embodiments of the present utility model, the fixed rod 100 and the rotating rod 200 are rotatably connected through a connecting component. Among them, a first connecting hole 102 is provided in the middle of the end face of the fixed rod 100 facing the rotating rod 200, and a second connecting hole 201 is provided in the middle of the end face of the rotating rod 200 facing the fixed rod 100. The rotating rod 200 and the fixed rod 100 are connected by a connecting component located between the first connecting hole 102 and the second one. Such a design not only simplifies the assembly process but also enhances the connection strength between the fixed rod 100 and the rotating rod 200, ensuring the firmness and durability of the entire structure, and making it suitable for long-term and frequent use. Specifically, the connecting component includes a first fastener 310 and a second fastener 320. The first fastener 310 passes through the first connecting hole 102, and the second fastener 320 passes through the second connecting hole 201. The tail of the first fastener 310 is threadedly connected to the tail of the second fastener 320. For example, the first fastener 310 is provided with a stud, and the second fastener 320 is provided with an internally threaded tube, and the stud is threadedly connected to the internally threaded tube. This not only simplifies the assembly steps, reduces the manufacturing cost, but also provides sufficient fastening force to ensure the reliability of the connection. At the same time, the threaded connection design makes subsequent maintenance or replacement of components simpler. Optionally, both the first connecting hole 102 and the second connecting hole 201 are countersunk clearance holes. The head of the first fastener 310 is placed inside the first connecting hole 102, and the head of the second fastener 320 is placed inside the second connecting hole 201. The overall appearance is beautiful and generous, reducing potential safety hazards that may be brought by protruding parts, and also making the fasteners not easily loosened by external interference, improving the overall stability and service life of the structure.

[0050] In addition, in some embodiments of the present utility model, referring again to Figures 1 to 3 , both the fixed rod 100 and the rotating rod 200 are cylindrical, making the entire structure have better appearance consistency and coordination. Moreover, the cylindrical shape design not only conforms to the outer shape of most hollow objects, facilitating matching use, but also has good mechanical properties, can withstand large external forces without being easily deformed, and extends the service life of the product. Further, referring to Figures 4 to 7 , the outer diameter of the rotating rod 200 is equal to the outer diameter of the fixed rod 100, and the length of the rotating rod 200 is less than the length of the fixed rod 100. Thus, it effectively ensures that in the quick-change state, the rotating rod 200 will not affect the smooth installation of the hollow object due to the outer diameter difference, and at the same time makes the overall structure more compact, saves space, and is convenient for carrying and storing.

[0051] Such as Figures 4 to 7, The paper towel holder according to an embodiment of the present utility model includes a rotation seamless switching structure according to an embodiment of the present utility model. Among them, an installation member 400 is provided at one end of the fixed rod 100 away from the rotating rod 200, and the installation member 400 is used to install the fixed rod 100. And, the outer diameters of both the rotating rod 200 and the fixed rod 100 are smaller than the inner diameter of the paper tube. It should be noted that by providing the installation member 400 at one end of the fixed rod 100 away from the rotating rod 200, the entire device can be conveniently installed on a wall or other support. In addition, by setting the outer diameters of both the rotating rod 200 and the fixed rod 100 to be smaller than the inner diameter of the paper tube, it is ensured that the paper towel roll can be smoothly installed on the fixed rod 100 and will not easily slip off during use, meeting the dual requirements of quick replacement and stable use.

[0052] Referring again to Figure 4 and Figure 5 , the installation member 400 of the vertical paper towel holder is a chassis, and the chassis is adapted to be directly placed on a plane. The fixed rod 100 is arranged vertically, and one end of the fixed rod 100 is fixedly connected to the chassis. The rotating rod 200 is rotatably connected to the end of the fixed rod 100 away from the chassis. In some applications, when the vertical paper towel holder is in the quick replacement state, both the rotating rod 200 and the fixed rod 100 are arranged vertically, and multiple paper tubes are sequentially sleeved on the fixed rod 100 through the rotating rod 200. Then, the user rotates the rotating rod 200 to switch it to the use state. At this time, the rotating rod 200 is arranged horizontally.

[0053] Referring again to Figure 6 , the installation member 400 of the cabinet paper towel holder is an installation bracket, and the installation bracket is adapted to be installed on the side surfaces such as walls and cabinet doors. In addition, referring to Figure 7 , in some applications of the bathroom paper towel holder, rotating rods 200 are respectively rotatably connected to both ends of the fixed rod 100. Thus, both ends of the fixed rod 100 can rotate the corresponding rotating rod 200 through operation so that the center line of the rotating rod 200 coincides with the center line of the fixed rod 100 to form an entire straight tube structure.

[0054] Other components and operations of the paper towel holder according to an embodiment of the present utility model are known to those of ordinary skill in the art and will not be described in detail here.

[0055] The above has described in detail the embodiments of the present utility model in conjunction with the drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the knowledge scope of those of ordinary skill in the art.

Claims

1. Rotational seamless switching structure, characterized in that: include: Fixed rod; A rotating rod, the end surfaces of the rotating rod and the fixed rod facing each other are in contact with each other and form an inclined transmission fit, the rotating rod is rotatably connected to the fixed rod, and drives the rotating rod to switch between a quick-change state and a use state; When the rotating rod is in the quick-change state, the center line of the rotating rod coincides with the center line of the fixed rod, so that the hollow object can pass through the rotating rod and be sleeved on the fixed rod; When the rotating rod is in use, the center line of the rotating rod is inclined with respect to the center line of the fixed rod, so as to prevent the hollow article from being separated from the fixed rod from the rotating rod.

2. The rotation seamless switching structure according to claim 1, characterized in that: The end surface of the fixed rod facing the rotating rod is provided with an arc-shaped limiting groove, and the end surface of the rotating rod facing the fixed rod is provided with a limiting protrusion, and the limiting protrusion is slidably arranged in the limiting groove.

3. The rotation seamless switching structure according to claim 2, characterized in that: The central angle corresponding to the limiting groove is 180°. When the rotating rod is in use, the center line of the rotating rod is arranged perpendicular to the center line of the fixed rod.

4. The rotation seamless switching structure according to claim 1, characterized in that: It also includes a connecting component, a first connecting hole is provided in the middle of the end surface of the fixed rod facing the rotating rod, a second connecting hole is provided in the middle of the end surface of the rotating rod facing the fixed rod, and the rotating rod and the fixed rod are connected by a connecting component located at the first connecting hole and the second connection.

5. The rotation seamless switching structure according to claim 4 is characterized in that: The connecting component includes a first fastener and a second fastener, the first fastener is inserted into the first connecting hole, the second fastener is inserted into the second connecting hole, and the tail of the first fastener is threadedly connected to the tail of the second fastener.

6. The rotation seamless switching structure according to claim 5, characterized in that: The first connection hole and the second connection hole are both countersunk clearance holes, the head of the first fastener is placed in the first connection hole, and the head of the second fastener is placed in the second connection hole.

7. The rotation seamless switching structure according to claim 1, characterized in that: The fixed rod and the rotating rod are both cylindrical.

8. The rotation seamless switching structure according to claim 1 or 7, characterized in that: The peripheral wall of the fixed rod is provided with a first identification portion, and the peripheral wall of the rotating rod is provided with a second identification portion, and the second identification portion is suitable for being aligned with the first identification portion.

9. The rotation seamless switching structure according to claim 1, characterized in that: The outer diameter of the rotating rod is equal to the outer diameter of the fixed rod, and the length of the rotating rod is shorter than the length of the fixed rod.

10. Paper towel holder, characterized by: Comprising the rotation seamless switching structure as claimed in any one of claims 1 to 9; A mounting piece is provided at one end of the fixing rod away from the rotating rod, and the mounting piece is used to mount the fixing rod; The outer diameters of the rotating rod and the fixed rod are both smaller than the inner diameter of the paper tube.

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