An adaptive press arm and paper towel holder

Abstract

The utility model relates to the field of paper towel holder discloses a self -adaptation pressure arm and paper towel holder, including mounting seat, be equipped with the installation column for the paper towel roll of casing on mounting seat, be provided with the pressure arm for pressing in the one side of paper towel roll on mounting seat, the bottom of pressure arm and mounting seat rotatory connection, be equipped with torsional spring between pressure arm and mounting seat, the bottom of mounting seat is equipped with a plurality of antiskid pad for increasing friction. Meanwhile, the torsional force of torsional spring cooperates with the gravity of mounting seat, the frictional resistance of antiskid pad, has realized the pressure self -adaptation effect of pressure arm together. The output deviation of the pressure arm pressure caused by the change of the paper roll amount is reduced. The self -adaptation ability of the whole device is enhanced, which can adapt to the change of the paper roll amount more smoothly and stably, avoiding the violent fluctuation of the pressing control effect. According to the thickness of the paper roll, the pressing effect of the pressure arm can be adjusted adaptively, so that the paper roll can rotate smoothly and be torn down.

Description

Technical Field

[0001] This utility model relates to the field of tissue holder technology, and more specifically, to an adaptive pressure arm and a tissue holder. Background Technology

[0002] In some existing tissue holders, users can easily tear tissues by placing the tissue roll inside the holder on the mounting shaft. However, when users pull the tissue forcefully during use, the roll may continue to rotate due to the inertia of the tearing, resulting in too many rotations and too much tissue being pulled out, causing inconvenience to users. Utility Model Content

[0003] To address at least one of the aforementioned problems, this utility model first provides an adaptive pressure arm, including a mounting base. The mounting base is provided with a mounting post for mounting a tissue roll. The mounting base is provided with a pressure arm for pressing on one side of the tissue roll. The bottom of the pressure arm is rotatably connected to the mounting base. A torsion spring is provided between the pressure arm and the mounting base. The torsion force of the torsion spring drives the pressure arm to rotate toward the tissue roll, so that the pressure arm presses against the tissue roll. The bottom of the mounting base is provided with several anti-slip pads to increase friction.

[0004] Optionally, the bottom of the pressure arm is provided with a connecting part, and a connecting post is provided inside the connecting part, with the torsion spring sleeved on the connecting post.

[0005] Optionally, one end of the connecting part is provided with a limiting wall, the limiting wall is provided with a first connecting hole, and the torsion spring includes a first torsion arm, which is installed in the first connecting hole.

[0006] Optionally, the mounting base is provided with a connector, and the connector has protruding lugs on both sides. The lug on the side away from the limiting wall is provided with a second connecting hole. The torsion spring includes a second torsion arm, which is installed in the second connecting hole.

[0007] Optionally, the connecting post is located between the two lugs and is rotatably connected to the lugs.

[0008] Optionally, the mounting base is provided with a connecting groove suitable for installing the connector, the connecting groove is provided with a limiting post, the connector is provided with a limiting hole, and the countersunk hole on the limiting post and the limiting hole are connected by bolts.

[0009] Optionally, a support portion is provided on the side wall of the connecting groove, and the support portion is supported below the lug.

[0010] Optionally, the mounting base includes an upper housing with a clearance opening, through which the pressure arm passes and rotates.

[0011] Optionally, the torsion spring includes a first torsion arm, a second torsion arm, and an elastic part. The first torsion arm and the second torsion arm are respectively disposed at both ends of the elastic part. The first torsion arm and the second torsion arm are parallel to each other, and the axis of the first torsion arm is parallel to the axis of the elastic part.

[0012] Compared to existing technologies, this utility model of a tissue roll pressing arm mechanism and tissue holder has a simple structure and low production cost. The torsion spring forces the pressing arm against one side of the tissue roll, creating friction between the roll and the pressing arm. This prevents the tissue roll from continuing to rotate due to inertia when torn, thus avoiding excessive tissue removal and waste, and making it more convenient to use. In use, one end of the tissue roll is first pulled out slowly to form the extraction section. The extraction force drives the roll to rotate around the mounting column axis. When the required length is extracted, the pressing arm presses down on the unextracted portion of the tissue roll (simulating another hand pressing down on the unextracted portion). At this point, only a slight force and a relatively quick pull are needed to tear off the extraction section, enabling one-handed tearing of the tissue, making it convenient to use.

[0013] Simultaneously, the torsion of the torsion spring, combined with the gravity of the mounting base and the frictional resistance of the anti-slip pad, achieves the pressure self-adaptation effect of the pressure arm. This reduces the output deviation of the pressure arm's pressing force caused by changes in the amount of paper rolled. It enhances the overall adaptability of the device, enabling it to adapt more smoothly and stably to changes in the amount of paper rolled, avoiding drastic fluctuations in the pressing control effect. It can adaptively adjust the pressing effect of the pressure arm according to the thickness of the paper roll, ensuring that the paper roll can rotate smoothly and be torn off.

[0014] In addition, this utility model provides a tissue holder, including the adaptive pressure arm as described above.

[0015] Compared to existing technologies, the tissue holder described in this utility model has the same advantages as the adaptive pressure arm described above, which will not be repeated here. Attached Figure Description

[0016] Figure 1 The structure of the tissue holder in this embodiment of the utility model Figure 1 ;

[0017] Figure 2 This is an exploded view of the tissue holder according to an embodiment of the present invention;

[0018] Figure 3 This is a side view of the pressure arm according to an embodiment of the present utility model;

[0019] Figure 4 for Figure 3 Enlarged view of section A;

[0020] Figure 5 This is a structural diagram of the connector according to an embodiment of the present utility model;

[0021] Figure 6 This is a structural diagram of the torsion spring according to an embodiment of the present utility model;

[0022] Figure 7 This is a structural diagram of the lower shell of an embodiment of the present utility model;

[0023] Figure 8 The structure of the tissue holder in this embodiment of the utility model Figure 2 ;

[0024] Figure 9 This is a graph showing the adaptive effect of an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Mounting base; 11. Upper housing; 111. Clearance opening; 12. Lower housing; 121. Connecting groove; 122. Limiting post; 123. Support part; 13. Anti-slip pad; 14. Edge retainer; 2. Mounting post; 3. Pressure arm; 31. Connecting part; 32. Connecting post; 33. Limiting wall; 331. First connecting hole; 4. Connecting piece; 41. Support lug; 411. Second connecting hole; 42. Limiting hole; 5. Torsion spring; 51. First torsion arm; 52. Second torsion arm; 53. Elastic part. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] The accompanying drawings of the embodiments of this utility model provide a coordinate system XYZ, where the positive direction of the X-axis represents the left and the negative direction of the X-axis represents the right, the positive direction of the Y-axis represents the front and the negative direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top and the negative direction of the Z-axis represents the bottom.

[0029] This utility model embodiment provides an adaptive pressure arm, combined with Figures 1 to 9 As shown, the device includes a mounting base 1, on which a mounting post 2 for mounting a tissue roll is provided. The mounting base 1 is also provided with a pressure arm 3 for pressing one side of the tissue roll. The bottom of the pressure arm 3 is rotatably connected to the mounting base 1. A torsion spring 5 is provided between the pressure arm 3 and the mounting base 1. The torsion of the torsion spring 5 drives the pressure arm 3 to rotate toward the tissue roll so that the pressure arm 3 presses against the tissue roll. The bottom of the mounting base 1 is provided with several anti-slip pads 13 to increase friction.

[0030] like Figure 1 and Figure 2 As shown, in this embodiment, there are five anti-slip pads 13 distributed circumferentially at intervals on the bottom of the mounting base 1. The mounting base 1 is a hollow disc shape. The mounting post 2 is threadedly connected to the mounting base 1 via bolts at the bottom. The mounting post 2 is cylindrical. The mounting post 2 is used to mount a tissue roll (not shown). The tissue roll includes a tube and a roll of paper. The tube has an inner hole with a diameter slightly larger than the diameter of the mounting post 2. The mounting post 2 is detachably inserted into the inner hole. The pressure arm 3 is approximately cuboid in shape. The upper end of the pressure arm 3 is used to press against the tissue roll and generate friction. The direction of the friction generated by the pressure arm 3 on the tissue roll is opposite to the direction of tearing the tissue roll, so that the user can tear it with one hand.

[0031] The mounting post 2 and the mounting base 1 are detachably connected, specifically via either a threaded connection or a tight-fit connection. The mounting base 1 has a retaining edge 14 that surrounds the bottom of the tissue roll, making the tissue roll installation more stable and aesthetically pleasing. The length of the pressure arm 3 is less than the diameter of the retaining edge 14. When the mounting post 2 is removed, the torsion spring 5 rotates the pressure arm 3 until it is in contact with or nearly in contact with the upper surface of the mounting base 1, at which point the pressure arm 3 is surrounded by the retaining edge 14. This reduces the space occupied, facilitating transportation.

[0032] This utility model relates to a tissue roll pressing arm 3 mechanism and a tissue holder, which has a simple structure and low production cost. The torsion spring 5 presses the pressing arm 3 against one side of the tissue roll, creating friction between the tissue roll and the pressing arm 3. This prevents the tissue roll from continuing to rotate due to inertia when being torn, thus avoiding excessive tissue removal and waste, and making it more convenient to use. In use, one end of the roll is first pulled out at a slow speed to form the extraction part. The extraction force drives the roll to rotate around the axis of the mounting column 2. When the required length is pulled out, the pressing arm 3 presses down on the unextracted part of the roll (simulating another hand pressing down on the unextracted part of the roll). At this time, only a little force is needed to pull the extraction part quickly to tear it off, realizing the operation of tearing off the tissue with one hand, which is convenient to use.

[0033] The torsion spring, combined with the weight of the mounting base and the frictional resistance of the anti-slip pad, achieves the pressure self-adaptation effect of the pressure arm. This reduces the output deviation of the pressure arm's pressing force caused by changes in the amount of paper rolled. It enhances the overall adaptability of the device, allowing it to adapt more smoothly and stably to changes in the amount of paper rolled, avoiding drastic fluctuations in the pressing control effect. It can adaptively adjust the pressing effect of the pressure arm according to the thickness of the paper roll, ensuring that the paper roll can rotate smoothly and be torn off.

[0034] Optionally, the bottom of the pressure arm 3 is provided with a connecting part 31, and a connecting post 32 is provided inside the connecting part 31, and the torsion spring 5 is sleeved on the connecting post 32.

[0035] like Figures 2 to 4As shown, in this embodiment, the pressure arm 3 is integrally formed, the connecting part 31 is a cylinder, the connecting column 32 is coaxially arranged with the connecting part 31, and a cavity suitable for accommodating the torsion spring 5 is formed between the inner walls of the connecting column 32 and the connecting part 31.

[0036] like Figure 4 and 6 As shown, optionally, one end of the connecting part 31 is provided with a limiting wall 33, the limiting wall 33 is provided with a first connecting hole 331, and the torsion spring 5 includes a first torsion arm 51, the first torsion arm 51 being installed in the first connecting hole 331.

[0037] like Figure 5 and 6 As shown, optionally, the mounting base 1 is provided with a connector 4, and both sides of the connector 4 are provided with lugs 41. The lugs 41 on the side away from the limiting wall 33 are provided with a second connecting hole 411. The torsion spring 5 includes a second torsion arm 52, which is installed in the second connecting hole 411.

[0038] In this embodiment, when an external force rotates the pressure arm 3 away from the mounting post 2, the first torsion arm 51 rotates with the pressure arm 3, and the second torsion arm 52 is fixed on the connector 4. At this time, the first torsion arm 51 generates torque, and the pressure arm 3 tends to rotate closer to the mounting post 2.

[0039] like Figure 5 As shown, optionally, the connecting post 32 is positioned between the two lugs 41 and is rotatably connected to the lugs 41. The body of the connector 4 is approximately cuboid, and the lugs 41 are located on the left and right sides of the front end of the body of the connector 4.

[0040] Optionally, the mounting base 1 is provided with a connecting groove 121 suitable for installing the connector 4, the connecting groove 121 is provided with a limiting post 122, the connector 4 is provided with a limiting hole 42, and the countersunk hole on the limiting post 122 and the limiting hole 42 are connected by bolts.

[0041] like Figure 5 and 7 As shown, in this embodiment, the mounting base 1 includes a lower housing 12, a connecting groove 121 is disposed on the lower housing 12, and the connector 4 is accommodated in the connecting groove 121. The connecting groove 121 facilitates the installation and positioning of the connector 4, making the structure more stable, while also reducing assembly difficulty and assembly costs. The limiting post 122 and the limiting hole 42 are positioned vertically by bolts.

[0042] like Figure 7As shown, optionally, a support portion 123 protrudes from the side wall of the connecting groove 121. The support portion 123 supports the lower part of the lug 41 to prevent the lug 41 from breaking due to excessive force. At the same time, the left and right side walls of the connecting groove 121 are respectively located on the sides of the two lugs 41 to protect the lugs 41 and make the structure more stable.

[0043] like Figure 2 As shown, optionally, the mounting base 1 includes an upper housing 11, the upper housing 11 having a clearance opening 111, the pressure arm 3 passing through the clearance opening 111 and rotating within the clearance opening 111. In this embodiment, the upper housing 11 and the lower housing 12 are fitted together to form a receiving cavity, and the connecting member 4 and the torsion spring 5 are both accommodated in the receiving cavity.

[0044] Optionally, the torsion spring 5 includes a first torsion arm 51, a second torsion arm 52, and an elastic portion 53. The first torsion arm 51 and the second torsion arm 52 are respectively disposed at both ends of the elastic portion 53. The first torsion arm 51 and the second torsion arm 52 are parallel to each other, and the axis of the first torsion arm 51 is parallel to the axis of the elastic portion 53. In this embodiment, the torsion spring 5 is integrally formed, and the helical extension direction of the elastic portion 53 is shown in Figure 6.

[0045] In this application, the connector 4 can act as a counterweight, or a counterweight can be provided inside the mounting base 1, or the weight of the mounting base 1 itself is sufficient. Based on this, the adaptive effect is represented by a mathematical graph:

[0046]

[0047]

[0048] Another embodiment of the present invention provides a tissue holder, including the adaptive pressure arm as described above.

[0049] Similarly, the components included in the "components," "mechanisms," and "devices" of this disclosure can also be flexibly combined. They can be modularly produced according to actual needs and assembled as an independent module; or they can be assembled separately to form a module in this device. The division of the above-mentioned components in this disclosure is only one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any technical solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this disclosure.

[0050] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure 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 disclosure.

[0051] Furthermore, the terms "first," "second," etc., 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 with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this disclosure, unless otherwise expressly 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0053] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. An adaptive pressure arm, characterized in that, The device includes a mounting base (1), on which a mounting post (2) for mounting a tissue roll is provided. The mounting base (1) is provided with a pressure arm (3) for pressing one side of the tissue roll. The bottom of the pressure arm (3) is rotatably connected to the mounting base (1). A torsion spring (5) is provided between the pressure arm (3) and the mounting base (1). The torsion of the torsion spring (5) drives the pressure arm (3) to rotate toward the tissue roll so that the pressure arm (3) presses against the tissue roll. The bottom of the mounting base (1) is provided with several anti-slip pads (13) for increasing friction.

2. The adaptive pressure arm according to claim 1, characterized in that, The bottom of the pressure arm (3) is provided with a connecting part (31), and a connecting post (32) is provided inside the connecting part (31). The torsion spring (5) is sleeved on the connecting post (32).

3. The adaptive pressure arm according to claim 2, characterized in that, One end of the connecting part (31) is provided with a limiting wall (33), and the limiting wall (33) is provided with a first connecting hole (331). The torsion spring (5) includes a first torsion arm (51), and the first torsion arm (51) is installed in the first connecting hole (331).

4. The adaptive pressure arm according to claim 3, characterized in that, The mounting base (1) is provided with a connector (4), and the connector (4) has protruding lugs (41) on both sides. The lug (41) on the side away from the limiting wall (33) is provided with a second connecting hole (411). The torsion spring (5) includes a second torsion arm (52), which is installed in the second connecting hole (411).

5. The adaptive pressure arm according to claim 4, characterized in that, The connecting post (32) is located between the two lugs (41) and is rotatably connected to the lugs (41).

6. The adaptive pressure arm according to claim 4, characterized in that, The mounting base (1) is provided with a connecting groove (121) suitable for installing the connector (4), the connecting groove (121) is provided with a limiting post (122), the connector (4) is provided with a limiting hole (42), and the countersunk hole on the limiting post (122) and the limiting hole (42) are connected by bolts.

7. The adaptive pressure arm according to claim 6, characterized in that, A support portion (123) is provided on the side wall of the connecting groove (121), and the support portion (123) is supported below the lug (41).

8. The adaptive pressure arm according to claim 1, characterized in that, The mounting base (1) includes an upper housing (11) with a clearance opening (111) on the upper housing (11). The pressure arm (3) passes through the clearance opening (111) and rotates in the clearance opening (111).

9. The adaptive pressure arm according to any one of claims 1-8, characterized in that, The torsion spring (5) includes a first torsion arm (51), a second torsion arm (52), and an elastic part (53). The first torsion arm (51) and the second torsion arm (52) are respectively disposed at both ends of the elastic part (53). The first torsion arm (51) and the second torsion arm (52) are parallel to each other, and the axis of the first torsion arm (51) is parallel to the axis of the elastic part (53).

10. A tissue holder, characterized in that, Including the adaptive pressure arm as described in any one of claims 1-9.

Images