A rotating bounce grip inner core and paper towel holder

By using a rotating and spring-loaded clamping design for the inner core, and through the cooperation of elastic elements and toothed rings, the problems of jerking sensation in the inner core of the tissue holder and jamming of the stain remover spray are solved, enabling smooth use of the stain remover spray and improving the user experience.

CN224483832UActive Publication Date: 2026-07-14NINGBO CHSIRGA METAL PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO CHSIRGA METAL PROD CO LTD
Filing Date
2025-07-24
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing tissue holder's inner core has a jerky feel during use, and the stain-removing sprayer is prone to getting stuck and unable to separate from the base, affecting the user experience.

Method used

It adopts a rotating spring-loaded clamping core design, which uses elastic elements, upper gear ring and lower gear ring to cooperate to convert axial pressing force into circumferential rotation of the rotating parts, realize the switching between the clamping part and the clearance groove, and avoid jamming.

Benefits of technology

The reduced jerking sensation and stable structure make the stain-removing sprayer easy to pull out and clamp, improving the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of paper towel holder discloses a rotation bounce clamping inner core and paper towel holder, is equipped with stand column subassembly on the base of paper towel holder, and rotation bounce clamping inner core includes decontamination sprayer, and stand column subassembly includes upper gear ring, lower gear ring, rotating part and elastic part, is equipped with the cooperation block of being suitable for with the meshing of upper gear ring and lower gear ring on rotating part, is equipped with the guide portion on upper gear ring and lower gear ring, and the guide portion guides the cooperation block and rotates between upper gear ring and lower gear ring, and the elastic part abuts against rotating part to provide the power of cooperation block and moves up, is equipped with the clamping portion for clamping decontamination sprayer on rotating part, and the upper end of upper gear ring is equipped with the avoidance slot for avoiding clamping portion. Through the cooperation of elastic part, upper gear ring, lower gear ring and cooperation block, the axial pressing force is converted into the circumferential rotation of rotating part, makes the staggered distribution or radial alignment between clamping portion and avoidance slot, makes clamping portion switch between clamping state and relaxation state, and the structure is stable and ingenious, reduces the feeling of frustration, and is not easy to jam.
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Description

Technical Field

[0001] This utility model relates to the field of tissue holder technology, and more specifically, to a rotating spring-loaded clamping inner core and a tissue holder. Background Technology

[0002] An existing tissue holder includes a base and an inner core. The base has a column assembly, and the inner core and the column assembly are fitted together. The tissue roll is wrapped around the column assembly and placed on the base. The inner core includes a stain-removing sprayer. By pressing the inner core downwards to separate it from the base, the stain-removing sprayer can be used to spray dirt. Then, a portion of the tissue roll is torn off to wipe away the dirt. Finally, the inner core is placed back on the base and pressed again to reconnect the inner core with the base.

[0003] The existing inner core has a noticeable jerking sensation during use. More importantly, when pressing down on the inner core, the stain-removing sprayer easily gets stuck and cannot be separated from the base, which seriously affects the user's experience with the tissue holder. Utility Model Content

[0004] To address at least one of the aforementioned problems, this utility model first provides a rotating spring-loaded clamping inner core for detachably connecting to the base of a tissue holder. The base is provided with a column assembly. The rotating spring-loaded clamping inner core includes a stain-removing sprayer. The column assembly includes an upper gear ring, a lower gear ring, a rotating component, and an elastic component. The rotating component is provided with a mating block adapted to engage with the upper and lower gear rings. Both the upper and lower gear rings are provided with guide portions that guide the mating block to rotate between the upper and lower gear rings. The elastic component abuts against the rotating component to provide upward force for the mating block. The rotating component is provided with a clamping portion for clamping the stain-removing sprayer. The upper end of the upper gear ring is provided with a clearance groove for avoiding the clamping portion.

[0005] When the stain remover is pressed, the stain remover causes the rotating part to move downward, and the mating block moves downward to connect with the lower gear ring; when the stain remover is released, the elastic element causes the mating block to move upward, and the guide part on the lower gear ring guides the mating block to rotate into the upper gear ring, while the clamping part rotates into the relief groove to relax the clamping effect on the stain remover, so that the stain remover can be pulled out for use.

[0006] Optionally, the clamping part comprises at least two clamping arms, which are hinged to the rotating member. The top of the clamping arm is bent to form a hook. The bottom of the stain-removing sprayer is provided with a connecting seat, and a connecting plate is provided on the connecting seat. The hook is used to hook the edge of the connecting plate.

[0007] Optionally, the rotating component is provided with a pressing part, which abuts against the bottom of the connecting plate, and the clamping arm is arranged around the pressing part.

[0008] Optionally, the clearance grooves are circumferentially spaced on the upper gear ring, and the gap between two clearance grooves forms a limiting part. When the clamping part and the limiting part radially abut, the clamping part clamps the stain-removing sprayer, and the stain-removing sprayer cannot be pulled out for use.

[0009] Optionally, the column assembly includes a first sleeve and a second sleeve, the upper gear ring and the clearance groove are both provided on the first sleeve, the lower gear ring is provided on the second sleeve, a limiting block is protruding from the side wall of the first sleeve, a limiting opening is provided at the upper end of the side wall of the second sleeve, and the limiting block is limited in the limiting opening.

[0010] Optionally, the second sleeve is provided with a first mounting groove with an upward opening, the bottom of the rotating component is provided with a second mounting groove with a downward opening, the upper and lower ends of the elastic component abut against the second mounting groove and the first mounting groove respectively, and the elastic component is a spring.

[0011] Optionally, the column assembly further includes a housing, in which the first sleeve and the second sleeve are both housed and fixedly connected, and in which the bottle of the stain remover is housed and detachably connected.

[0012] Optionally, the upper gear ring has an inclined first sidewall and a vertical second sidewall on its protruding teeth, and the lower gear ring has an inclined third sidewall and a vertical fourth sidewall on its protruding teeth. The first sidewall and the third sidewall have the same inclination direction. The mating block has a first mating wall, a second mating wall, and a third mating wall. The first mating wall is adapted to slide with the first sidewall, the second mating wall is adapted to slide with the third sidewall, and the third mating wall is adapted to slide with both the second and fourth sidewalls. The guide portion consists of the first sidewall and the third sidewall. The third sidewall is used to guide the mating block to rotate and move upward onto the first sidewall, and the first sidewall is used to guide the mating block to rotate.

[0013] Optionally, the second sidewall and the fourth sidewall are staggered in the vertical direction, the second sidewall is used to guide the mating block into the middle of the third sidewall, and the fourth sidewall is used to guide the mating block into the middle of the first sidewall.

[0014] Compared with the prior art, the rotating spring-loaded clamping inner core of this utility model, through the cooperation of elastic element, upper gear ring, lower gear ring and mating block, converts the axial pressing force into the circumferential rotation of the rotating element, so that the clamping part and the relief groove are misaligned or radially aligned, thereby allowing the clamping part to switch between clamping and loosening states. The structure is stable and ingenious, reduces the feeling of jerking, and is not easy to get stuck.

[0015] In addition, this utility model provides a tissue holder, including the rotating spring-loaded clamping core as described above.

[0016] Compared with the prior art, the tissue holder described in this utility model has the same advantages as the aforementioned rotating and spring-loaded clamping core, which will not be repeated here. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of a tissue holder according to an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 Enlarged view of section A;

[0019] Figure 3 This is a structural diagram of the first sleeve according to an embodiment of the present utility model;

[0020] Figure 4 This is a structural diagram of the second sleeve according to an embodiment of the present utility model;

[0021] Figure 5 This is a structural diagram of the rotating component according to an embodiment of the present utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Stain remover sprayer; 11. Connecting seat; 111. Connecting plate; 2. First sleeve; 21. Upper gear ring; 211. First side wall; 212. Second side wall; 22. Clearance groove; 23. Limiting part; 24. Limiting block; 3. Second sleeve; 31. Lower gear ring; 311. Third side wall; 312. Fourth side wall; 32. Limiting port; 33. First mounting groove; 331. Mounting column; 4. Rotating part; 41. Mating block; 411. First mating wall; 412. Second mating wall; 413. Third mating wall; 42. Clamping arm; 421. Hook; 43. Pressing part; 44. Second mounting groove; 5. Elastic part; 6. Outer shell; 7. Base. Detailed Implementation

[0024] 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.

[0025] This utility model embodiment provides a rotating, spring-loaded clamping inner core, combined with... Figures 1 to 5 As shown, a base 7 for detachably connecting a tissue holder is provided on the base 7. The rotating spring-loaded clamping core includes a stain-removing sprayer 1. The column assembly includes an upper gear ring 21, a lower gear ring 31, a rotating member 4, and an elastic member 5. The rotating member 4 is provided with a mating block 41, which is adapted to mesh with the upper gear ring 21 and the lower gear ring 31. Both the upper gear ring 21 and the lower gear ring 31 are provided with guide portions, which guide the mating block 41 to rotate between the upper gear ring 21 and the lower gear ring 31. The elastic member 5 abuts against the rotating member 4 to provide the power for the mating block 41 to move upward. The rotating member 4 is provided with a clamping portion for clamping the stain-removing sprayer 1. The upper end of the upper gear ring 21 is provided with a relief groove 22 for avoiding the clamping portion.

[0026] When the cleaning sprayer 1 is pressed, the cleaning sprayer 1 causes the rotating member 4 to move downward, and the mating block 41 moves downward to connect with the lower gear ring 31; when the cleaning sprayer 1 is released, the elastic member 5 causes the mating block 41 to move upward, and the guide portion on the lower gear ring 31 guides the mating block 41 to rotate into the upper gear ring 21, while the clamping portion rotates into the relief groove 22 to relax the clamping effect on the cleaning sprayer 1, so that the cleaning sprayer 1 can be pulled out for use.

[0027] like Figure 1 and 2 As shown, in this embodiment, when the stain remover spray 1 is not pressed, the mating block 41 engages with the upper gear ring 21. At this time, the clamping part and the clearance groove 22 are misaligned, the clamping groove is in a clamped state, and the stain remover spray 1 cannot be pulled out. When the stain remover spray 1 is pressed, the mating block 41 moves down and engages with the lower gear ring 31, while the elastic element 5 is compressed. When the stain remover spray 1 is released, the elastic force of the elastic element 5 drives the mating block 41 to move up. Under the combined action of the guide part of the lower gear ring 31 and the guide part of the upper gear ring 21, the mating block 41 drives the rotating part 4 to rotate, causing the clamping part to rotate into the clearance groove 22, thereby relaxing the clamping effect on the stain remover spray 1, and the stain remover spray 1 can be pulled out by the user for independent use.

[0028] Compared with the prior art, the rotating spring-loaded clamping inner core of this utility model, through the cooperation of the elastic element 5, the upper toothed ring 21, the lower toothed ring 31 and the mating block 41, converts the axial pressing force into the circumferential rotation of the rotating element 4, so that the clamping part and the relief groove 22 are misaligned or radially aligned, thereby allowing the clamping part to switch between the clamping state and the loosening state. The structure is stable and ingenious, reduces the feeling of jerking, and is not easy to get stuck.

[0029] like Figure 2As shown, optionally, the clamping part consists of at least two clamping arms 42, which are hinged to the rotating member 4. The top of the clamping arm 42 is bent to form a hook 421. The bottom of the stain-removing sprayer 1 is provided with a connecting seat 11, and a connecting plate 111 is provided on the connecting seat 11. The hook 421 is used to hook the edge of the connecting plate 111.

[0030] In this embodiment, there are two clamping arms 42, which are fixedly connected to the bottom of the connecting seat 11 and the decontamination sprayer 1.

[0031] like Figure 2 and 5 As shown, optionally, the rotating member 4 is provided with a pressing part 43, the pressing part 43 abuts against the bottom of the connecting plate 111, and the clamping arm 42 is arranged around the pressing part 43.

[0032] In this embodiment, the height of the top of the pressing part 43 is adapted to the hook part 421. The pressing part 43 is used to compensate for the height so that the pressing force applied by the user to the stain sprayer 1 is not directly transmitted to the clamping arm 42, thus preventing the clamping arm 42 from being broken due to excessive force.

[0033] like Figure 3 As shown, optionally, the clearance grooves 22 are circumferentially spaced on the upper gear ring 21, and the gap between the two clearance grooves 22 forms a limiting part 23. When the clamping part and the limiting part 23 are radially abutted, the clamping part clamps the stain-removing sprayer 1, and the stain-removing sprayer 1 cannot be pulled out for use.

[0034] In this embodiment, when the user presses the stain remover spray 1 once, the clamping part enters the relief groove 22, and the stain remover spray 1 can be taken out. After the user finishes using it, the stain remover spray 1 is aligned with its original position and pressed down again. The two clamping arms 42 are positioned between the two opposing limiting parts 23, and the stain remover spray 1 can be clamped.

[0035] like Figure 3 and 4 As shown, optionally, the column assembly includes a first sleeve 2 and a second sleeve 3. The upper toothed ring 21 and the clearance groove 22 are both provided on the first sleeve 2, and the lower toothed ring 31 is provided on the second sleeve 3. A limiting block 24 protrudes from the side wall of the first sleeve 2, and a limiting opening 32 is provided at the upper end of the side wall of the second sleeve 3. The limiting block 24 is limited in the limiting opening 32.

[0036] In this embodiment, the outer rings of the first sleeve 2, the second sleeve 3, and the rotating component 4 are all cylindrical, with the first sleeve 2 fitted onto the rotating component 4. There is one semi-circular limiting block 24, and the shape of the limiting opening 32 matches the shape of the limiting block 24. The limiting block 24 is positioned within the limiting opening 32, preventing the first sleeve 2 and the second sleeve 3 from rotating relative to each other or moving vertically, thus fixing the positions of the upper gear ring 21 and the lower gear ring 31.

[0037] like Figure 3 and 4 As shown, optionally, the second sleeve 3 is provided with a first mounting groove 33 with an upward opening, the bottom of the rotating member 4 is provided with a second mounting groove 44 with a downward opening, and the upper and lower ends of the elastic member 5 respectively abut against the second mounting groove 44 and the first mounting groove 33, and the elastic member 5 is a spring.

[0038] In this embodiment, a mounting post 331 protrudes from the first mounting groove 33, and a spring is sleeved on the mounting post 331. The spring is simultaneously accommodated in the first mounting groove 33 and the second mounting groove 44, making the mounting structure more stable.

[0039] Optionally, the column assembly further includes a housing 6, in which the first sleeve 2 and the second sleeve 3 are both housed and fixedly connected to the housing 6, and the bottle body of the stain remover sprayer 1 is housed in the housing 6 and detachably connected to the housing 6.

[0040] like Figures 3 to 5 As shown, optionally, the upper gear ring 21 has an inclined first sidewall 211 and a vertically arranged second sidewall 212 on its protruding teeth, and the lower gear ring 31 has an inclined third sidewall 311 and a vertically arranged fourth sidewall 312 on its protruding teeth. The first sidewall 211 and the third sidewall 311 have the same inclination direction. The mating block 41 has a first mating wall 411, a second mating wall 412, and a third mating wall 413. The first mating wall 411 is adapted to be slidably connected to the first sidewall 211, the second mating wall 412 is adapted to be slidably connected to the third sidewall 311, and the third mating wall 413 is adapted to be slidably connected to the second sidewall 212 and the fourth sidewall 312. The guide portion consists of the first sidewall 211 and the third sidewall 311. The third sidewall 311 is used to guide the mating block 41 to rotate and move upward onto the first sidewall 211, and the first sidewall 211 is used to guide the mating block 41 to rotate.

[0041] In this embodiment, the mating block 41 is triangular. When the mating block 41 moves down until the second mating wall 412 abuts against the third side wall 311, because the lower gear ring 31 is fixed, the mating block 41 rotates and moves down along the third side wall 311 until it reaches the bottom of the third side wall 311. When the elastic force of the elastic element 5 drives the mating block 41 to move up, the third mating wall 413 moves up along the fourth side wall 312 until the first mating wall 411 abuts against the first side wall 211. Because the upper gear ring 21 is fixed, the mating block 41 rotates and moves up along the first side wall 211 until it reaches the top of the first side wall 211. At this time, the mating block 41 is confined in the tooth groove of the upper gear ring 21.

[0042] Optionally, the second sidewall 212 and the fourth sidewall 312 are offset in the vertical direction. The second sidewall 212 is used to guide the mating block 41 into the middle of the third sidewall 311, and the fourth sidewall 312 is used to guide the mating block 41 into the middle of the first sidewall 211.

[0043] In this embodiment, the teeth of the upper gear ring 21 and the lower gear ring 31 are staggered in the vertical direction. Guided by the inclined surfaces of the third side wall 311 and the fourth side wall 312, the mating block 41 rotates upward under the elastic force of the elastic member 5, thereby causing the clamping part to rotate in and out of the clearance groove 22 to switch between the clamping state and the loosening state.

[0044] Another embodiment of the present invention provides a tissue holder, including the rotating spring-loaded clamping core as described above.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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. A rotating, spring-loaded clamping inner core for detachably connecting to the base (7) of a tissue holder, characterized in that, The base (7) is provided with a column assembly. The rotating spring clamping inner core includes a stain-removing sprayer (1). The column assembly includes an upper gear ring (21), a lower gear ring (31), a rotating part (4), and an elastic part (5). The rotating part (4) is provided with a mating block (41). The mating block (41) is adapted to mesh with the upper gear ring (21) and the lower gear ring (31). The upper gear ring (21) and the lower gear ring (31) are both provided with guide portions. The guide portions guide the mating block (41) to rotate between the upper gear ring (21) and the lower gear ring (31). The elastic part (5) abuts against the rotating part (4) to provide the power for the mating block (41) to move upward. The rotating part (4) is provided with a clamping portion for clamping the stain-removing sprayer (1). The upper end of the upper gear ring (21) is provided with a relief groove (22) for avoiding the clamping portion. When the cleaning sprayer (1) is pressed, the cleaning sprayer (1) drives the rotating part (4) to move down, and the mating block (41) moves down to connect with the lower toothed ring (31); when the cleaning sprayer (1) is released, the elastic part (5) drives the mating block (41) to move up, and the guide part on the lower toothed ring (31) guides the mating block (41) to rotate into the upper toothed ring (21), while the clamping part rotates into the relief groove (22) to relax the clamping effect on the cleaning sprayer (1), so that the cleaning sprayer (1) can be pulled out for use.

2. The rotating spring-loaded clamping inner core according to claim 1, characterized in that, The clamping part consists of at least two clamping arms (42), which are hinged to the rotating part (4). The top of the clamping arm (42) is bent to form a hook (421). The bottom of the stain-removing sprayer (1) is provided with a connecting seat (11), and a connecting plate (111) is provided on the connecting seat (11). The hook (421) is used to hook the edge of the connecting plate (111).

3. The rotating spring-loaded clamping inner core according to claim 2, characterized in that, The rotating part (4) is provided with a pressing part (43), which abuts against the bottom of the connecting plate (111), and the clamping arm (42) is arranged around the pressing part (43).

4. The rotating bouncing clamping inner core according to claim 1, characterized in that, The clearance grooves (22) are circumferentially spaced on the upper gear ring (21), and the gap between the two clearance grooves (22) forms a limiting part (23). When the clamping part and the limiting part (23) are radially abutted, the clamping part clamps the decontamination sprayer (1), and the decontamination sprayer (1) cannot be pulled out for use.

5. The rotating spring-loaded clamping inner core according to claim 1, characterized in that, The column assembly includes a first sleeve (2) and a second sleeve (3). The upper gear ring (21) and the clearance groove (22) are both provided on the first sleeve (2), and the lower gear ring (31) is provided on the second sleeve (3). A limiting block (24) is protruding from the side wall of the first sleeve (2), and a limiting opening (32) is provided at the upper end of the side wall of the second sleeve (3). The limiting block (24) is limited in the limiting opening (32).

6. The rotating spring-loaded clamping inner core according to claim 5, characterized in that, The second sleeve (3) is provided with a first mounting groove (33) opening upwards, and the bottom of the rotating part (4) is provided with a second mounting groove (44) opening downwards. The upper and lower ends of the elastic part (5) respectively abut against the second mounting groove (44) and the first mounting groove (33). The elastic part (5) is a spring.

7. The rotating bouncing clamping inner core according to claim 5, characterized in that, The column assembly also includes a housing (6), in which the first sleeve (2) and the second sleeve (3) are both housed and fixedly connected to the housing (6), and the bottle body of the stain remover sprayer (1) is housed in the housing (6) and detachably connected to the housing (6).

8. The rotating spring-loaded clamping inner core according to any one of claims 1-7, characterized in that, The upper gear ring (21) has an inclined first sidewall (211) and a vertical second sidewall (212) on its protruding teeth. The lower gear ring (31) has an inclined third sidewall (311) and a vertical fourth sidewall (312) on its protruding teeth. The first sidewall (211) and the third sidewall (311) are inclined in the same direction. The mating block (41) has a first mating wall (411), a second mating wall (412), and a third mating wall (413). The first mating wall (411) is adapted to be mated with the third sidewall (312). A side wall (211) is slidably connected, a second mating wall (412) is adapted to be slidably connected to the third side wall (311), and the third mating wall (413) is adapted to be slidably connected to the second side wall (212) and the fourth side wall (312). The guide portion consists of the first side wall (211) and the third side wall (311). The third side wall (311) is used to guide the mating block (41) to rotate upward onto the first side wall (211), and the first side wall (211) is used to guide the mating block (41) to rotate.

9. The rotating spring-loaded clamping inner core according to claim 8, characterized in that, The second sidewall (212) and the fourth sidewall (312) are offset in the vertical direction. The second sidewall (212) is used to guide the mating block (41) into the middle of the third sidewall (311), and the fourth sidewall (312) is used to guide the mating block (41) into the middle of the first sidewall (211).

10. A tissue holder, characterized in that, Includes the rotating spring-loaded clamping core as described in any one of claims 1-9.