A rotation adjusting structure and a swing-proof wheel applying the same

Abstract

This invention discloses a rotary adjustment structure and an anti-sway wheel using the same. The rotary adjustment structure includes a fixed component, a rotating component, and an adjustment assembly. The fixed component has a receiving groove and a rotation limiting groove facing the receiving groove. The rotating component is at least partially received in the receiving groove, with one end located in the rotation limiting groove and capable of rotating within a predetermined range. The adjustment component's adjustment member sequentially passes through the fixed component and the rotating component and is drively connected to a pressing component located in the receiving groove. Two ends of an elastic member abut against the rotating component and the pressing component, respectively. In its natural state, the adjustment member drives the pressing component to move axially, compressing the elastic member, causing the rotating component to rotate along the rotation limiting groove to a limiting position, thus switching to the adjustment state. In the adjustment state, changing the compression amount of the elastic member changes the elastic force acting on the rotating component. This invention uses the direct engagement of the rotation limiting groove and one end of the rotating component to form a rotary support, eliminating the need for a separate connecting shaft and shaft hole, reducing the number of parts and eliminating the shaft insertion process, effectively improving the assembly efficiency of the anti-sway wheel.

Description

Technical Field

[0001] This invention relates to the field of door and window hardware technology, and in particular to a rotary adjustment structure and an anti-sway wheel using the same. Background Technology

[0002] When sliding doors and similar doors are opened and closed, the bottom of the door is prone to swaying from side to side due to guide gaps, affecting the smoothness of the door's operation and the user experience. To suppress this swaying, the door and window hardware industry typically installs adjustable anti-sway wheels on the door frame profiles. The friction between the anti-sway wheels and the ground applies damping to the door, and the magnitude of this friction can be adjusted to adapt to different door weights, ground conditions, and usage requirements.

[0003] Existing anti-sway wheels generally include a fixed component, a rotating component, and an elastic assembly for adjustment. The fixed component is mounted on the door frame profile, and one end of the rotating component is hinged to the fixed component, while the other end is fitted with a pulley. By rotating the rotating component relative to the fixed component, the downward pressure of the pulley is changed, thereby altering the friction between the pulley and the ground. To achieve the hinged connection, existing anti-sway wheels often employ a through-shaft structure. This involves creating corresponding shaft holes on both sides of the fixed component and both sides of the rotating component, with a separate connecting shaft passing through these four holes sequentially. The axis of this connecting shaft serves as the rotation axis of the rotating component relative to the fixed component.

[0004] However, the above-mentioned through-shaft structure requires the connecting shaft to be aligned and passed through the four shaft holes located on the fixed and rotating parts during assembly. It has high requirements for the coaxiality between the shaft holes, and the assembly process is cumbersome and not easy to automate, resulting in low assembly efficiency of the anti-sway wheel. Summary of the Invention

[0005] The purpose of this invention is to provide a rotation adjustment structure and an anti-sway wheel using the same, aiming to solve the problem that in the prior art, the rotating part and the fixed part of the anti-sway wheel must be hinged by a connecting shaft, and the connecting shaft must be aligned and passed through multiple shaft holes in sequence during assembly, resulting in low assembly efficiency.

[0006] To solve the above-mentioned technical problems, the objective of this invention is achieved through the following technical solution: providing a rotation adjustment structure for an anti-sway wheel, comprising: The fastener includes a receiving groove and a rotation limiting groove facing the receiving groove; A rotating member, at least a portion of which is accommodated in the receiving groove, and one end of which is located in the rotation limiting groove and can rotate within the rotation limiting groove along a predetermined range; An adjustment assembly includes an adjustment member, a pressing member, and an elastic member. The pressing member and the elastic member are both located in the receiving groove. The adjustment member is sequentially inserted through the fixed member and the rotating member and is pulsatorically connected to the pressing member. The two ends of the elastic member abut against the rotating member and the pressing member, respectively. The rotating member has a natural state and an adjustable state. In the natural state, the adjustable member can drive the pressing member to move along the axial direction of the adjustable member to compress the elastic member, thereby causing the rotating member to rotate along the rotation limiting groove and switch to the adjustable state when it rotates to the limiting position. In the adjustable state, the adjustable member can drive the pressing member to move along the axial direction of the adjustable member to change the compression amount of the elastic member, thereby changing the elastic force of the elastic member acting on the rotating member.

[0007] Furthermore, the rotating limiting groove includes a first supporting surface and a first limiting surface. The first supporting surface intersects with the first limiting surface to form a first axis. The end of the rotating member near the fixed member is provided with a second supporting surface and a second limiting surface. The second supporting surface intersects with the second limiting surface to form a second axis. The first axis and the second axis abut against each other to form a rotation center for the rotating member to rotate relative to the fixed member. In the natural state, there is an angle between the first limiting surface and the second limiting surface to provide rotation space for the rotating member to rotate relative to the fixed member. In the adjusted state, the first limiting surface and the second limiting surface fit together to restrict the rotating member from continuing to rotate.

[0008] Furthermore, the first support surface is horizontally arranged along the axial direction of the adjusting member, and the first limiting surface is inclined relative to the axial direction of the adjusting member; when the rotating member is in its natural state, the second support surface is horizontally arranged relative to the axial direction of the adjusting member and fits against the first support surface, and the second limiting surface is vertically arranged relative to the axial direction of the adjusting member.

[0009] Furthermore, the fastener includes a fixing body and a mounting portion protruding from one end of the fixing body, and the receiving groove is formed between the fixing body and the mounting portion; The rotating component includes two opposing sidewalls and a connecting wall close to the mounting portion and connected between the two sidewalls. A receiving space communicating with the receiving groove is formed between the two sidewalls and the connecting wall. The pressing member and the elastic member are both located in the receiving space. The second supporting surface and the second limiting surface are both provided on the connecting wall. The adjusting member is sequentially inserted through the mounting part and the connecting wall and is connected to the pressing member in a driving manner. The two ends of the elastic member abut against the connecting wall and the pressing member, respectively.

[0010] Furthermore, there is a preset distance between the connecting wall and the mounting part to provide rotation space for the rotating member to rotate relative to the fixed member.

[0011] Furthermore, the mounting part is provided with a first through hole, and the connecting wall is provided with a second through hole opposite to the first through hole and communicating with the receiving space. The adjusting member passes through the first through hole and the second through hole in sequence and is connected to the pressing member.

[0012] Furthermore, the rotating limiting groove is disposed on the side of the fixed body facing the receiving groove, and the second supporting surface and the second limiting surface are respectively disposed on the side of the connecting wall facing the fixed body and the mounting part.

[0013] Furthermore, the adjusting component is a screw, the pressing component is a nut block, the elastic component is a compression spring, the shank of the screw is threadedly connected to the nut block, and the compression spring is sleeved on the outer periphery of the shank of the screw.

[0014] Furthermore, the fastener is provided with clamping bosses on both sides, and the fastener is also provided with locking holes. The locking holes are used to insert locking components, and the locking components are used to clamp and fix the clamping bosses of the fastener in the profile groove.

[0015] This invention also provides an anti-sway wheel, including a pulley and the rotation adjustment structure described above, wherein the pulley is rotatably mounted on the end of the rotating member away from the fixed member via a pulley shaft.

[0016] This invention provides a rotary adjustment structure for an anti-sway wheel, comprising a fixing member including a receiving groove and a rotation limiting groove facing the receiving groove; a rotating member, at least a portion of which is received in the receiving groove, and one end of which is located in the rotation limiting groove and can rotate within the rotation limiting groove along a predetermined range; and an adjustment assembly including an adjustment member, a pressing member, and an elastic member, wherein the pressing member and the elastic member are both located in the receiving groove, the adjustment member is sequentially passed through the fixing member and the rotating member and is pulsatorically connected to the pressing member, and the elastic member... The two ends of the component abut against the rotating component and the pressing component, respectively. The rotating component has a natural state and an adjustable state. In the natural state, the adjustable component can drive the pressing component to move along the axial direction of the adjustable component to compress the elastic component, thereby causing the rotating component to rotate along the rotation limiting groove and switch to the adjustable state when it rotates to the limiting position. In the adjustable state, the adjustable component can drive the pressing component to move along the axial direction of the adjustable component to change the compression amount of the elastic component, thereby changing the elastic force exerted by the elastic component on the rotating component. This invention provides a rotating limiting groove on the fixed component that faces the receiving groove, allowing one end of the rotating component to be directly received in the rotating limiting groove and rotate within it within a predetermined range. This eliminates the need for a separate connecting shaft and a shaft hole to mate with the connecting shaft, thus achieving a rotational fit between the rotating component and the fixed component. Simultaneously, the adjusting component in the adjusting assembly drives the pressing component to compress the elastic component, causing the rotating component to rotate along the rotating limiting groove to the limiting position under the action of elastic force. At this position, the elastic force can be adjusted by changing the compression amount of the elastic component. This reduces the number of parts, simplifies the structure, eliminates the need for the connecting shaft insertion process, lowers the requirements for the coaxiality of the shaft hole, and effectively improves the assembly efficiency of the anti-sway wheel. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the anti-sway wheel in the natural state of the rotating component, provided by an embodiment of the present invention; Figure 2 A cross-sectional view of an anti-sway wheel in its natural state, provided as an embodiment of the present invention; Figure 3 This is a schematic diagram of an anti-sway wheel in an adjustable state, provided by an embodiment of the present invention. Figure 4 A cross-sectional view of an anti-sway wheel in an adjustable state, provided by an embodiment of the present invention; Figure 5 for Figure 2 Enlarged view of section A; Figure 6 for Figure 4 Enlarged view of section B; Figure 7 This is a schematic diagram of the structure of the fastener provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the rotating component provided in an embodiment of the present invention; Figure 9 An exploded view of an anti-balance wheel provided in an embodiment of the present invention.

[0019] Explanation of the markings in the image: 100. Pulley; 200. Pulley axle; 10. Fixing component; 11. Receiving groove; 12. Rotation limiting groove; 121. First support surface; 122. First limiting surface; 13. Fixing body; 14. Mounting part; 141. First through hole; 15. Clamping boss; 16. Locking hole; 17. Locking component; 20. Rotating component; 21. Second support surface; 22. Second limiting surface; 23. Side wall; 24. Connecting wall; 241. Second through hole; 30. Adjustment component; 31. Adjustment element; 32. Pressing element; 33. Elastic element. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0022] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0023] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0024] Combination Figures 1 to 4 As shown, an embodiment of the present invention provides a rotation adjustment structure for an anti-sway wheel, comprising: The fastener 10 includes a receiving groove 11 and a rotation limiting groove 12 facing the receiving groove 11; The rotating member 20 has at least a portion therein accommodated in the receiving groove 11, and one end of the rotating member 20 is located in the rotation limiting groove 12 and can rotate within the rotation limiting groove 12 within a predetermined range. The adjustment assembly 30 includes an adjustment member 31, a pressing member 32, and an elastic member 33. The pressing member 32 and the elastic member 33 are both located in the receiving groove 11. The adjustment member 31 is sequentially inserted through the fixed member 10 and the rotating member 20 and is connected to the pressing member 32 in a transmission manner. The two ends of the elastic member 33 abut against the rotating member 20 and the pressing member 32, respectively. The rotating member 20 has a natural state and an adjustable state. In the natural state, the adjusting member 31 can drive the pressing member 32 to move along the axial direction of the adjusting member 31 to compress the elastic member 33, thereby causing the rotating member 20 to rotate along the rotation limiting groove 12 and switch to the adjustable state when it rotates to the limiting position. In the adjustable state, the adjusting member 31 can drive the pressing member 32 to move along the axial direction of the adjusting member 31 to change the compression amount of the elastic member 33, thereby changing the elastic force of the elastic member 33 acting on the rotating member 20.

[0025] In this embodiment, the rotation adjustment structure is applied to the anti-sway wheel. The anti-sway wheel refers to a hardware accessory installed on the frame profile of a sliding door or similar door leaf to suppress the swaying of the door leaf during opening and closing. Combined with... Figures 1 to 4 As shown, the rotary adjustment structure mainly consists of three parts: a fixed part 10, a rotating part 20, and an adjustment component 30. The three parts cooperate in sequence to realize the limited angle rotation of the rotating part 20 relative to the fixed part 10 and the elastic adjustment after the rotation is in place.

[0026] The fixing member 10 is the reference member in this rotation adjustment structure. It is used to fix to the frame profile of the door leaf and remain relatively stationary during use. The fixing member 10 has a receiving groove 11, which is a groove-shaped space formed by recessing from one side of the fixing member 10 to accommodate the rotating member 20 and the adjustment assembly 30. The fixing member 10 is also provided with a rotation limiting groove 12 facing the receiving groove 11. The rotation limiting groove 12 is a groove-shaped structure that opens towards the receiving groove 11 and can both provide rotational support for one end of the rotating member 20 and limit the rotation range of the rotating member 20.

[0027] The rotating member 20 is a movable component in the rotary adjustment structure that can swing at a limited angle relative to the fixed member 10. At least a portion of the rotating member 20 is accommodated in the receiving groove 11, and one end of the rotating member 20 is located in the rotary limiting groove 12 and can rotate within a predetermined range in the rotary limiting groove 12. The predetermined range refers to the rotation angle interval defined by the groove wall of the rotary limiting groove 12. The rotating member 20 can rotate freely within this interval, and once it exceeds this interval, it is blocked by the groove wall of the rotary limiting groove 12 and cannot continue to rotate. It can be seen that the rotating member 20 and the fixed member 10 form a rotary support by means of the direct cooperation between one end of the rotating member 20 and the rotary limiting groove 12. The two can achieve relative rotation without the need for a connecting shaft penetrating each other and a shaft hole that mates with the connecting shaft.

[0028] The adjusting assembly 30 is used to drive the rotating member 20 to rotate and adjust the elastic force borne by the rotating member 20. It includes an adjusting member 31, a pressing member 32, and an elastic member 33. The pressing member 32 and the elastic member 33 are both located in the receiving groove 11. The adjusting member 31 is sequentially inserted through the fixed member 10 and the rotating member 20 and is connected to the pressing member 32 in a transmission manner. The two ends of the elastic member 33 abut against the rotating member 20 and the pressing member 32, respectively. The transmission connection means that the movement of the adjusting member 31 itself can be transmitted to the pressing member 32 and drive the pressing member 32 to produce displacement. For example, the adjusting member 31 and the pressing member 32 can be connected by a threaded engagement. When the adjusting member 31 is rotated, the pressing member 32 is driven to move axially along the adjusting member 31 through the threaded pair.

[0029] The rotating component 20 has two working states: a natural state and an adjustment state. The natural state refers to the state in which one end of the rotating component 20 is placed in the rotation limiting groove 12, but has not yet rotated to the limiting position defined by the rotation limiting groove 12; the adjustment state refers to the state in which the rotating component 20 has rotated to the limiting position and is stopped by the rotation limiting groove 12 and cannot continue to rotate. The limiting position is the end position of the aforementioned predetermined range.

[0030] In its natural state, the adjusting member 31 can drive the pressing member 32 to move along the axial direction of the adjusting member 31, thereby compressing the elastic member 33. The elastic force generated by the compression of the elastic member 33 reacts to the rotating member 20, because one end of the rotating member 20 ( Figure 2 The upper left side is positioned within the rotating limiting groove 12, while the other end ( Figure 2 (View from the lower left) is an open setting. The elastic force forms a rotational torque at the interface between the rotating part 20 and the rotation limiting groove 12, thereby causing the rotating part 20 to rotate along the rotation limiting groove 12. When the rotating part 20 rotates to the limiting position, it is stopped by the rotation limiting groove 12 and stops rotating. The rotating part 20 then switches from the natural state to the adjustment state.

[0031] In the adjusted state, the angular position of the rotating member 20 is limited by the rotation limiting groove 12. Continuing to operate the adjusting member 31 at this time will still drive the pressing member 32 to move along the axial direction of the adjusting member 31. However, the movement of the pressing member 32 no longer manifests as pushing the rotating member 20 to continue rotating, but rather as changing the compression of the elastic member 33, thereby changing the elastic force exerted by the elastic member 33 on the rotating member 20. Therefore, the user only needs to continuously operate the same adjusting member 31 to complete both the rotation of the rotating member 20 and the adjustment of the elastic force, making the operation simple and the adjustment process continuously controllable.

[0032] In summary, the rotation adjustment structure of this embodiment replaces the connecting shaft in the prior art with the direct engagement of the rotation limiting groove 12 and one end of the rotating part 20, realizing shaftless rotation of the rotating part 20 relative to the fixed part 10. The number of parts is reduced, and there is no need to perform hole alignment and insertion operations of the connecting shaft during assembly, nor is it necessary to impose high coaxiality requirements on multiple shaft holes, thereby effectively improving the assembly efficiency of the anti-sway wheel.

[0033] Combination Figure 5 and Figure 6 As shown, in one embodiment, the rotating limiting groove 12 includes a first supporting surface 121 and a first limiting surface 122. The first supporting surface 121 and the first limiting surface 122 intersect to form a first axis. The rotating member 20 is provided with a second supporting surface 21 and a second limiting surface 22 at one end near the fixed member 10. The second supporting surface 21 and the second limiting surface 22 intersect to form a second axis. The first axis and the second axis abut against each other to form a rotation center for the rotating member 20 to rotate relative to the fixed member 10. In the natural state, there is an angle between the first limiting surface 122 and the second limiting surface 22 to provide rotation space for the rotating member 20 to rotate relative to the fixed member 10. In the adjusted state, the first limiting surface 122 and the second limiting surface 22 fit together to restrict the rotating member 20 from continuing to rotate.

[0034] In this embodiment, the cooperation between the rotating limiting groove 12 and the rotating member 20 can be specifically configured as follows: The rotating limiting groove 12 includes a first supporting surface 121 and a first limiting surface 122, the first supporting surface 121 and the first limiting surface 122 intersect to form a first axis; correspondingly, the rotating member 20 is provided with a second supporting surface 21 and a second limiting surface 22 at one end near the fixed member 10, the second supporting surface 21 and the second limiting surface 22 intersect to form a second axis.

[0035] The first axis refers to the ridge line formed by the intersection of the first support surface 121 and the first limiting surface 122; the second axis refers to the ridge line formed by the intersection of the second support surface 21 and the second limiting surface 22. After assembly, the first axis and the second axis abut against each other, that is, the ridge line of the rotating part 20 overlaps with the ridge line of the rotating limiting groove 12, and the two mesh with each other in a line contact manner, thus forming the rotation center of the rotating part 20 relative to the fixed part 10. Since this rotation center is formed by the direct abutment of the two ridge lines, the rotating part 20 does not need to rely on any shaft parts when rotating around it, so the rotation fit described in this embodiment can also be called a shaftless rotation fit.

[0036] Combination Figure 5 As shown, Figure 5 for Figure 2 The enlarged view in section A shows the fit between the rotating member 20 and the rotation limiting groove 12 when the rotating member 20 is in its natural state. In the natural state, there is an angle between the first limiting surface 122 and the second limiting surface 22. The space corresponding to this angle is the rotation space of the rotating member 20 relative to the fixed member 10. The size of this angle determines the maximum angle that the rotating member 20 can rotate from the natural state to the adjusted state; the larger the angle, the larger the angle that the rotating member 20 can rotate, and the greater the swing stroke of the end of the rotating member 20 away from the fixed member 10.

[0037] Combination Figure 6 As shown, Figure 6 for Figure 4 The enlarged view in section B shows the engagement relationship at the rotation limiting groove 12 when the rotating component 20 is in the adjustment state. In the adjustment state, the first limiting surface 122 and the second limiting surface 22 are in contact with each other, and the contact between the surfaces restricts the rotation of the rotating component 20 from continuing to rotate. At this time, the included angle between the first limiting surface 122 and the second limiting surface 22 decreases to zero, the rotating component 20 is reliably stopped, its rotation ends, and the angular position of the rotating component 20 is thus stably determined.

[0038] The significance of the above-mentioned fit is as follows: First, the contact between the first axis and the second axis provides a definite and stable rotation center for the rotating part 20, preventing the rotating part 20 from drifting in the receiving groove 11; Second, the process of the first limiting surface 122 and the second limiting surface 22 changing from having an included angle to being in contact with each other not only defines the starting point and the ending point of the rotation of the rotating part 20, but also allows the rotating part 20 to obtain surface contact support after rotating into position, which has a stronger load-bearing capacity than line contact or point contact; Third, the first supporting surface 121, the first limiting surface 122, the second supporting surface 21 and the second limiting surface 22 can all be formed together when the fixing part 10 and the rotating part 20 are formed, without the need to add any independent rotating shaft parts, and without the need to process corresponding shaft holes on both.

[0039] In one embodiment, the first support surface 121 is horizontally arranged along the axial direction of the adjusting member 31, and the first limiting surface 122 is inclined relative to the axial direction of the adjusting member 31; when the rotating member 20 is in its natural state, the second support surface 21 is horizontally arranged relative to the axial direction of the adjusting member 31 and fits against the first support surface 121, and the second limiting surface 22 is vertically arranged relative to the axial direction of the adjusting member 31.

[0040] In this embodiment, the orientation of the first support surface 121 and the first limiting surface 122, as well as the orientation of the second support surface 21 and the second limiting surface 22, can be specifically configured as follows: The first support surface 121 is horizontally arranged along the axial direction of the adjusting member 31, while the first limiting surface 122 is inclined relative to the axial direction of the adjusting member 31. Here, "horizontal" and "inclined" refer to the axial direction of the adjusting member 31 as the reference direction: "horizontal" means that the surface is approximately parallel to the axial direction of the adjusting member 31; "inclined" means that the surface is neither parallel nor perpendicular to the axial direction of the adjusting member 31, but forms a certain acute angle with it.

[0041] When the rotating member 20 is in its natural state, the second support surface 21 is horizontally positioned relative to the axis of the adjusting member 31 and is in contact with the first support surface 121, and the second limiting surface 22 is vertically positioned relative to the axis of the adjusting member 31, that is, the second limiting surface 22 is approximately perpendicular to the axis of the adjusting member 31.

[0042] Therefore, in its natural state, the second support surface 21 of the rotating component 20 rests smoothly on the first support surface 121 of the rotation limiting groove 12 in a surface contact manner. Both surfaces jointly support the rotating component 20 and ensure its stable position when not adjusted. At the same time, a wedge-shaped space with an opening away from the first support surface 121 is naturally formed between the vertically arranged second limiting surface 22 and the inclined first limiting surface 122. This wedge-shaped space is the aforementioned rotation space for the rotating component 20 to rotate. For example, if the first limiting surface 122 is inclined at 20° relative to the vertical line of the adjusting component 31, then in its natural state, the angle between the second limiting surface 22 and the first limiting surface 122 is also 20°, and the angle through which the rotating component 20 rotates from its natural state to its adjusted state is 20°.

[0043] When the rotating component 20 rotates around the contact point between the first axis and the second axis under the elastic force of the elastic component 33, the second limiting surface 22 gradually moves closer to the first limiting surface 122, while the second supporting surface 21 gradually separates from the first supporting surface 121. When the second limiting surface 22 and the first limiting surface 122 are fully engaged, the rotating component 20 has rotated to its position and entered the adjustment state. The above-mentioned surface orientation setting method ensures that the starting and ending positions of the rotating component 20 are determined by the engagement relationship between the planes, resulting in high positioning accuracy and ease of processing: the first supporting surface 121 and the second supporting surface 21 can be formed in one step by planar milling or stamping, while the first limiting surface 122 and the second limiting surface 22 can be formed in the same process by beveling, without the need for additional processing equipment and processes.

[0044] Combination Figure 7 and Figure 8 As shown, in one embodiment, the fastener 10 includes a fastening body 13 and a mounting portion 14 protruding from one end of the fastening body 13, and a receiving groove 11 is formed between the fastening body 13 and the mounting portion 14. The rotating member 20 includes two opposing side walls 23 and a connecting wall 24 close to the mounting part 14 and connected between the two side walls 23. The two side walls 23 and the connecting wall 24 form a receiving space that communicates with the receiving groove 11. The pressing member 32 and the elastic member 33 are both located in the receiving space. The second support surface 21 and the second limiting surface 22 are both provided on the connecting wall 24. Adjusting member 31 is sequentially inserted through mounting part 14 and connecting wall 24 and is connected to pressing member 32 in a transmission manner. Both ends of elastic member 33 abut against connecting wall 24 and pressing member 32 respectively.

[0045] In this embodiment, the shapes of the fixing member 10 and the rotating member 20 can be specifically configured as follows. Combined with... Figure 7 As shown, the fastener 10 includes a fastening body 13 and a mounting portion 14 protruding from one end of the fastening body 13, forming a receiving groove 11 between the fastening body 13 and the mounting portion 14. The fastening body 13 refers to the main body of the fastener 10 that extends in a long strip and is used to cooperate with the frame profile of the door leaf; the mounting portion 14 refers to the boss-shaped portion that protrudes from one end of the fastening body 13 and is used for the adjustment member 31 to pass through. The protruding direction of the mounting portion 14 intersects with the extending direction of the fastening body 13, so the mounting portion 14 and the fastening body 13 naturally enclose a receiving groove 11 that opens to one side.

[0046] Combination Figure 8As shown, the rotating member 20 includes two opposing sidewalls 23 and a connecting wall 24 located near the mounting portion 14 and connected between the two sidewalls 23. The two sidewalls 23 and the connecting wall 24 form a receiving space communicating with the receiving groove 11. The pressing member 32 and the elastic member 33 are both located within this receiving space. The rotating member 20, enclosed by the two sidewalls 23 and the connecting wall 24, is generally U-shaped, with the connecting wall 24 forming the bottom of the U-shape and the two sidewalls 23 forming the two arms of the U-shape. The receiving space refers to the space enclosed by the opposing inner surfaces of the two sidewalls 23 and the inner surface of the connecting wall 24, with its opening facing away from the connecting wall 24. Since this receiving space is interconnected with the receiving groove 11, the pressing member 32 and the elastic member 33 located within this receiving space are also located within the receiving groove 11.

[0047] The second support surface 21 and the second limiting surface 22 are both provided on the connecting wall 24, that is, the end of the rotating member 20 used to cooperate with the rotating limiting groove 12 is formed by the connecting wall 24. The adjusting member 31 is sequentially passed through the mounting part 14 and the connecting wall 24 and is connected to the pressing member 32 in a driving connection. The two ends of the elastic member 33 abut against the connecting wall 24 and the pressing member 32 respectively. Accordingly, the force transmission path established by the adjusting member 31 is as follows: one end of the adjusting member 31 abuts against the mounting part 14, and the other end passes through the mounting part 14 and the connecting wall 24 in sequence and then connects to the pressing member 32; when the adjusting member 31 is operated, the pressing member 32 moves toward the connecting wall 24, and the elastic member 33 sandwiched between the connecting wall 24 and the pressing member 32 is compressed accordingly. One end of the elastic member 33 applies the elastic force directly to the connecting wall 24, and the connecting wall 24 is precisely the part with the second support surface 21 and the second limiting surface 22. Therefore, the elastic force can be efficiently converted into a torque that drives the rotating member 20 to rotate, with the abutment of the first axis and the second axis as the fulcrum.

[0048] Another advantage of adopting the above-mentioned form is that the rotating part 20 can be formed into a "U"-shaped component by stamping and bending of a metal sheet in one step. There is no need to reserve a hole position and corresponding material allowance on its two side walls 23 and connecting wall 24 for the connecting shaft to pass through, which reduces the forming and processing difficulty of the rotating part 20 and reduces material consumption.

[0049] In one embodiment, the connecting wall 24 and the mounting portion 14 have a preset distance to provide rotation space for the rotating member 20 to rotate relative to the fixed member 10.

[0050] In this embodiment, a preset distance is provided between the connecting wall 24 and the mounting portion 14 to provide rotational space for the rotating member 20 to rotate relative to the fixed member 10. The preset distance refers to the gap size maintained along the axial direction of the adjusting member 31 between the side of the connecting wall 24 facing the mounting portion 14 and the side of the mounting portion 14 facing the connecting wall 24 when the rotating member 20 is in its natural state.

[0051] The purpose of this preset distance is that when the rotating member 20 rotates around the abutment of the first axis and the second axis, the lower part of the connecting wall 24 ( Figure 2 (View angle) will swing towards the mounting part 14; if no gap is reserved between the connecting wall 24 and the mounting part 14, the lower part of the connecting wall 24 will abut against the mounting part 14 at the beginning of rotation, and the rotating member 20 will be unable to rotate to the limiting position where the first limiting surface 122 and the second limiting surface 22 are in contact due to the obstruction of the mounting part 14, and the compression of the elastic member 33 will not be able to continue to increase. Therefore, a gap sufficient to accommodate the swing of the connecting wall 24 must be reserved between the connecting wall 24 and the mounting part 14.

[0052] The preset distance should be no less than the maximum displacement of the connecting wall 24 along the axial direction of the adjusting member 31 during the process of the rotating member 20 rotating from the natural state to the adjusting state. Under the premise of satisfying the above conditions, the preset distance should preferably be a small value to shorten the length of the adjusting member 31 and make the overall size of the rotary adjusting structure more compact.

[0053] Combination Figure 9 As shown, in one embodiment, the mounting part 14 is provided with a first through hole 141, and the connecting wall 24 is provided with a second through hole 241 opposite to the first through hole 141 and communicating with the accommodating space. The adjusting member 31 passes through the first through hole 141 and the second through hole 241 in sequence and is connected to the pressing member 32.

[0054] In this embodiment, the adjusting member 31 can be specifically configured to pass through the mounting portion 14 and the connecting wall 24 as follows. Combined with... Figure 9 As shown, the mounting part 14 is provided with a first through hole 141, and the connecting wall 24 is provided with a second through hole 241 opposite to the first through hole 141 and communicating with the receiving space. The adjusting member 31 passes through the first through hole 141 and the second through hole 241 in sequence and is connected to the pressing member 32. The first through hole 141 is a hole that passes through the mounting part 14 and communicates with the receiving groove 11. It is used for the adjusting member 31 to pass through and plays a guiding and supporting role for the adjusting member 31. The second through hole 241 is a hole that passes through the connecting wall 24 and communicates with the receiving space. It is also used for the adjusting member 31 to pass through. The first through hole 141 and the second through hole 241 are arranged opposite to each other, that is, the axes of the two holes are approximately coincident when the rotating member 20 is in its natural state, thereby ensuring that the adjusting member 31 can smoothly pass through the two holes in sequence and extend into the receiving space to connect with the pressing member 32.

[0055] Based on the above structure, the assembly sequence of this embodiment can be as follows: First, place the connecting wall 24 of the rotating member 20 into the receiving groove 11 of the fixing member 10, and make the second support surface 21 and the second limiting surface 22 on the connecting wall 24 cooperate with the first support surface 121 and the first limiting surface 122 of the rotating limiting groove 12, respectively; then, place the elastic member 33 and the pressing member 32 into the receiving space formed by the two side walls 23 and the connecting wall 24 in sequence; finally, from the outside of the fixing member 10, pass the adjusting member 31 through the first through hole 141, the second through hole 241 and the elastic member 33 in sequence, and connect the adjusting member 31 with the pressing member 32. At this point, the adjusting member 31, the elastic member 33 and the pressing member 32 are connected in series on the same axis, and the operation of the adjusting member 31 can be converted into the movement of the pressing member 32 along the axis. The entire assembly process does not require hole alignment and shaft insertion, but only needs to be inserted and locked from the outside to the inside.

[0056] For example, the first through hole 141 can be configured as a countersunk hole that matches one end of the adjusting member 31, so that the end of the adjusting member 31 is recessed into the mounting part 14 and does not protrude from the outer surface of the fixing member 10, so as to avoid interference with the frame profile of the door leaf; the diameter of the second through hole 241 can be slightly larger than the diameter of the adjusting member 31, so that when the rotating member 20 rotates relative to the fixing member 10, a certain relative wobble is allowed between the connecting wall 24 and the adjusting member 31 without interference.

[0057] In one embodiment, the rotating limiting groove 12 is disposed on the side of the fixed body 13 facing the receiving groove 11, and the second supporting surface 21 and the second limiting surface 22 are respectively disposed on the side of the connecting wall 24 facing the fixed body 13 and the mounting part 14.

[0058] In this embodiment, the rotation limiting groove 12 and the second support surface 21 and the second limiting surface 22 are specifically configured on their respective parts as follows: The rotation limiting groove 12 is disposed on the side of the fixed body 13 facing the receiving groove 11, and the second support surface 21 and the second limiting surface 22 are respectively disposed on the side of the connecting wall 24 facing the fixed body 13 and the mounting part 14.

[0059] Specifically, the side of the fixed body 13 facing the receiving groove 11 is the bottom of the receiving groove 11. By placing the rotation limiting groove 12 here, the rotation limiting groove 12 can be directly recessed inward from the bottom surface of the fixed body 13 or enclosed by a protruding structure on the bottom surface of the groove, eliminating the need for additional supports on the fixing member 10 to support the rotating member 20. Simultaneously, the bottom of the receiving groove 11 itself is a high-rigidity part of the fixing member 10, directly bearing the load transmitted from the rotating member 20 via the first axis, which helps improve the reliability of the structure.

[0060] Correspondingly, the side of the connecting wall 24 facing the fixed body 13 is the bottom surface of the connecting wall 24 facing away from the receiving space, and the second support surface 21 is disposed on the bottom surface, so that it can be placed on the first support surface 121 located at the bottom of the groove from top to bottom; the side of the connecting wall 24 facing the mounting part 14 is the end face of the connecting wall 24 facing the mounting part 14 along the axial direction of the adjusting member 31, and the second limiting surface 22 is disposed on the end face, so that it can be opposite to the first limiting surface 122 extending obliquely from the bottom of the groove.

[0061] Since the second support surface 21 and the second limiting surface 22 are respectively located on two adjacent surfaces of the connecting wall 24, they naturally intersect to form a second axis. This second axis is located precisely on the edge of the connecting wall 24 near the fixed body 13 and near the mounting part 14, and is directly opposite to the first axis formed by the intersection of the first support surface 121 and the first limiting surface 122 in the rotating limiting groove 12. Accordingly, when the rotating part 20 is placed into the receiving groove 11 in a direction perpendicular to the fixed body 13, the second axis automatically falls onto and abuts against the first axis, eliminating the need for alignment with special tooling and further simplifying the assembly operation.

[0062] In one embodiment, the adjusting member 31 is a screw, the pressing member 32 is a nut block, and the elastic member 33 is a compression spring. The shank of the screw is threadedly connected to the nut block, and the compression spring is sleeved on the outer periphery of the shank of the screw.

[0063] In this embodiment, the components in the adjusting assembly 30 can be selected in the following specific forms: the adjusting member 31 is a screw, the pressing member 32 is a nut block, the elastic member 33 is a compression spring, the shank of the screw is threadedly connected to the nut block, and the compression spring is sleeved on the outer periphery of the shank of the screw.

[0064] A nut block refers to a block-shaped part with a threaded hole inside that matches the shank of the screw; a compression spring refers to an elastic element that undergoes compression deformation and outputs elastic force under axial pressure. For example, the screw can be a hexagonal head screw with an M4 or M5 specification, so that it can be turned from the outside of the fixing member 10 using an Allen wrench; the nut block can be a rectangular block with an outer contour that matches the rotating member 20, so that when the screw is turned, the nut block is laterally constrained and does not rotate with the screw, but can only move axially along the shank of the screw; the compression spring can be a cylindrical helical compression spring with an inner diameter slightly larger than the diameter of the shank of the screw, so that it can be fitted around the outer circumference of the shank and guided by the shank to prevent it from bending laterally under pressure.

[0065] The specific working process described above is as follows: When the screw is rotated, the threaded pair between the screw shank and the nut block converts the rotational motion of the screw into the linear motion of the nut block along the axial direction. The nut block then moves toward the rotating member 20 and compresses the compression spring sleeved on the outer periphery of the shank. The compression amount of the compression spring increases accordingly, and its output elastic force also increases accordingly. Conversely, when the screw is rotated in the opposite direction, the nut block moves away from the rotating member 20, and the compression amount and elastic force of the compression spring decrease accordingly.

[0066] The advantages of adopting the above-mentioned specific form are as follows: First, the transmission ratio of the threaded pair is small. The nut block moves only one pitch for each revolution of the screw, so the adjustment of the elastic force can achieve continuous, minute and linear changes with high adjustment accuracy. Second, the threaded pair itself has a self-locking characteristic. After the screw stops rotating, it can remain above the predetermined screw depth. The axial position of the nut block and the compression amount of the compression spring are maintained accordingly. Therefore, after the adjustment is completed, no additional locking parts are needed to maintain the adjusted elastic force, and the adjustment result is stable and reliable. Third, the screw, nut block and compression spring are all general-purpose parts with a high degree of standardization, which are convenient to obtain and inexpensive.

[0067] In one embodiment, clamping bosses 15 are provided on both sides of the fixing member 10, and the fixing member 10 is also provided with locking holes 16. The locking holes 16 are used to pass through locking members 17, and the locking members 17 are used to clamp and fix the clamping bosses 15 of the fixing member 10 in the profile groove.

[0068] In this embodiment, the installation method between the fastener 10 and the frame profile of the door leaf can be specifically set as follows: the fastener 10 is provided with clamping protrusions 15 on both sides, and the fastener 10 is also provided with locking holes 16. The locking holes 16 are used to pass through locking members 17, and the locking members 17 are used to clamp and fix the clamping protrusions 15 of the fastener 10 in the profile groove.

[0069] The profile groove refers to a strip-shaped groove formed on the door frame profile, and its two sides are usually provided with inwardly extending flanges; the clamping boss 15 refers to a stepped structure that protrudes outward from both sides of the fixing member 10 and abuts against the aforementioned flanges; the locking member 17 refers to a fastening part that passes through and is screwed into the locking hole 16, and whose end can press against the bottom of the profile groove to lift the fixing member 10. For example, the locking member 17 can be a self-tapping screw, and the locking hole 16 can be a threaded hole that is adapted to the self-tapping screw and passes through the fixing member 10.

[0070] Combination Figure 9As shown, the installation process is as follows: First, push the fixing member 10 into the groove from the end or opening of the profile groove, and position the clamping protrusions 15 on both sides of the fixing member 10 below the flanges on both sides of the profile groove; then, insert the locking member 17 into the locking hole 16 and gradually screw it in. The end of the locking member 17 then presses against the bottom of the profile groove, and its reaction force lifts the fixing member 10 as a whole, so that the clamping protrusions 15 on both sides press against the flanges on both sides of the profile groove from bottom to top; at this point, the fixing member 10 is firmly clamped and fixed in the profile groove by the upper and lower abutment action of the locking member 17 and the clamping protrusions 15.

[0071] Using the above clamping and fixing method, there is no need to open additional mounting holes on the door frame profile, which neither damages the appearance of the profile nor weakens its strength. At the same time, the position of the fixing member 10 in the profile groove can be continuously adjusted along the length of the groove. The fixing member 10 can be moved by loosening the locking member 17, and the fixing can be completed by tightening the locking member 17 again. The installation position is highly adaptable.

[0072] This invention also provides an anti-sway wheel, including a pulley 100 and the rotation adjustment structure described above. The pulley 100 is rotatably mounted on the end of the rotating member 20 away from the fixed member 10 via a pulley shaft 200.

[0073] In this embodiment, the anti-sway wheel includes a pulley 100 and the aforementioned rotation adjustment structure. The pulley 100 is rotatably mounted on the end of the rotating member 20 away from the fixed member 10 via a pulley shaft 200. The pulley 100 is a wheel-shaped part that contacts the ground and rolls along the ground when the door moves, applying damping to the door through the friction between itself and the ground. The pulley shaft 200 is a shaft-like part that passes through the central hole of the pulley 100 and supports the rotation of the pulley 100.

[0074] Combination Figure 9 As shown, the end of the rotating member 20 away from the fixed member 10 is formed by the ends of two side walls 23, each with a corresponding shaft hole. The pulley 100 is placed between the two side walls 23, and the pulley shaft 200 passes sequentially through the shaft hole on one side wall 23, the center hole of the pulley 100, and the shaft hole on the other side wall 23, and is fixed to both side walls 23, allowing the pulley 100 to rotate freely around the pulley shaft 200. It should be noted that the pulley shaft 200 is only used to support the rotation of the pulley 100, and is unrelated to the rotation of the rotating member 20 relative to the fixed member 10. The rotation of the rotating member 20 relative to the fixed member 10 is still achieved by the contact between the first axis and the second axis.

[0075] The complete assembly process of the anti-sway wheel provided in this embodiment is as follows: The first step is to place the connecting wall 24 of the rotating component 20 into the receiving groove 11 of the fixing component 10, so that the second support surface 21 on the connecting wall 24 rests on the first support surface 121 of the rotating limiting groove 12, and the second axis formed by the intersection of the second support surface 21 and the second limiting surface 22 abuts against the first axis formed by the intersection of the first support surface 121 and the first limiting surface 122. The second step is to place the compression spring, which is the elastic element 33, and the nut block, which is the pressing element 32, into the receiving space enclosed by the two side walls 23 and the connecting wall 24 in sequence. The third step is to pass the screw, which serves as the adjusting member 31, through the first through hole 141 on the mounting part 14, the second through hole 241 on the connecting wall 24, and the compression spring from the outside of the fixing member 10, and screw its rod into the threaded hole of the nut block so that the three are connected as one. Fourth step, place the pulley 100 between the two side walls 23, and then fix the pulley shaft 200 after passing it through the shaft hole on the side wall 23 and the center hole of the pulley 100 in sequence; Fifth step, insert the locking member 17 into the locking hole 16 of the fixing member 10.

[0076] At this point, the anti-sway wheel assembly is complete. It is evident that the entire assembly process does not involve aligning or threading the connecting shaft; all parts are simply placed in sequence along the same direction, significantly improving assembly efficiency.

[0077] The anti-sway wheel provided in this embodiment is used as follows: First, push the assembled anti-sway wheel into the profile groove of the door frame profile, and tighten the locking member 17 so that the clamping bosses 15 on both sides of the fixing member 10 abut against the flange of the profile groove, thereby fixing the anti-sway wheel to the door. At this time, the rotating member 20 is in its natural state, the second support surface 21 and the first support surface 121 are in contact with each other, the second limiting surface 22 and the first limiting surface 122 maintain an angle, and the pulley 100 has not yet established the required clamping force with the ground.

[0078] Furthermore, when the door is closed, the screw acting as the adjusting member 31 is rotated. This screw, through a threaded joint, drives the nut block acting as the pressing member 32 to move axially toward the connecting wall 24. The compression spring sandwiched between the connecting wall 24 and the nut block is compressed, and its elastic force acts on the connecting wall 24, forming a rotational torque with the point of contact between the first and second axes as the fulcrum. This drives the rotating member 20 to rotate around this contact point. As the rotating member 20 rotates, its end away from the fixed member 10, along with the pulley 100, swings toward the ground, pressing the pulley 100 against the ground. When the second limiting surface 22 rotates to fully engage with the first limiting surface 122, the rotating member 20 is stopped and stops rotating. At this point, the rotating member 20 switches from its natural state to the adjusting state.

[0079] Finally, while in the adjusted state, the screw is continued to be rotated, and the nut block continues to move axially. The compression of the spring changes accordingly, and the elastic force acting on the rotating component 20 also changes. Since the angular position of the rotating component 20 is now limited by the contact relationship between the first limiting surface 122 and the second limiting surface 22, this change in elastic force directly translates into a change in the pressure of the pulley 100 pressing against the ground, thereby adjusting the magnitude of the friction between the pulley 100 and the ground. For example, when the screw is screwed in forward, the compression increases, the elastic force increases, and the friction between the pulley 100 and the ground increases accordingly. The damping of the door is enhanced, and its swaying is more effectively suppressed. When the screw is screwed out in reverse, the compression decreases, the elastic force decreases, and the friction decreases accordingly, making the door easier to push and pull. Users can conveniently adjust the appropriate friction by rotating the same screw according to the weight of the door, the flatness of the ground, and the desired push-pull feel.

[0080] In summary, the anti-sway wheel provided in this embodiment has a shaftless rotational fit between the rotating component 20 and the fixed component 10 through the mutual abutment of the second axis on the connecting wall 24 and the first axis in the rotation limiting groove 12. The rotation is terminated and positioned by the mutual contact of the first limiting surface 122 and the second limiting surface 22. Compared with the existing through-shaft anti-sway wheel, it eliminates the independent connecting shaft and the four shaft holes located on both sides of the fixed component and the rotating component. The number of parts is reduced, and there is no need to perform hole alignment and insertion operations for the connecting shaft during assembly. The requirement for coaxiality of each shaft hole is also eliminated, and the assembly efficiency is significantly improved. At the same time, the rotating component 20 does not need to reserve a through hole position and corresponding material allowance for inserting the connecting shaft, which reduces the molding and processing difficulty and material consumption, and the overall manufacturing cost of the anti-sway wheel is reduced accordingly.

[0081] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A rotary adjustment structure for an anti-sway wheel, characterized in that, include: The fastener includes a receiving groove and a rotation limiting groove facing the receiving groove; A rotating member, at least a portion of which is accommodated in the receiving groove, and one end of which is located in the rotation limiting groove and can rotate within the rotation limiting groove along a predetermined range; An adjustment assembly includes an adjustment member, a pressing member, and an elastic member. The pressing member and the elastic member are both located in the receiving groove. The adjustment member is sequentially inserted through the fixed member and the rotating member and is pulsatorically connected to the pressing member. The two ends of the elastic member abut against the rotating member and the pressing member, respectively. The rotating member has a natural state and an adjustable state. In the natural state, the adjustable member can drive the pressing member to move along the axial direction of the adjustable member to compress the elastic member, thereby causing the rotating member to rotate along the rotation limiting groove and switch to the adjustable state when it rotates to the limiting position. In the adjustable state, the adjustable member can drive the pressing member to move along the axial direction of the adjustable member to change the compression amount of the elastic member, thereby changing the elastic force of the elastic member acting on the rotating member.

2. The rotation adjustment structure according to claim 1, characterized in that, The rotating limiting groove includes a first supporting surface and a first limiting surface. The first supporting surface and the first limiting surface intersect to form a first axis. The rotating member has a second supporting surface and a second limiting surface at one end near the fixed member. The second supporting surface and the second limiting surface intersect to form a second axis. The first axis and the second axis abut against each other to form a rotation center for the rotating member to rotate relative to the fixed member. In the natural state, the first limiting surface and the second limiting surface have an included angle to provide rotation space for the rotating member to rotate relative to the fixed member. In the adjusted state, the first limiting surface and the second limiting surface fit together to restrict the rotating member from continuing to rotate.

3. The rotation adjustment structure according to claim 2, characterized in that, The first support surface is horizontally arranged along the axial direction of the adjusting member, and the first limiting surface is inclined relative to the axial direction of the adjusting member; when the rotating member is in its natural state, the second support surface is horizontally arranged relative to the axial direction of the adjusting member and fits against the first support surface, and the second limiting surface is vertically arranged relative to the axial direction of the adjusting member.

4. The rotation adjustment structure according to claim 2, characterized in that, The fastener includes a fastening body and a mounting portion protruding from one end of the fastening body, and the receiving groove is formed between the fastening body and the mounting portion. The rotating component includes two opposing sidewalls and a connecting wall close to the mounting portion and connected between the two sidewalls. A receiving space communicating with the receiving groove is formed between the two sidewalls and the connecting wall. The pressing member and the elastic member are both located in the receiving space. The second supporting surface and the second limiting surface are both provided on the connecting wall. The adjusting member is sequentially inserted through the mounting part and the connecting wall and is connected to the pressing member in a driving manner. The two ends of the elastic member abut against the connecting wall and the pressing member, respectively.

5. The rotation adjustment structure according to claim 4, characterized in that, There is a preset distance between the connecting wall and the mounting part to provide rotation space for the rotating part to rotate relative to the fixed part.

6. The rotation adjustment structure according to claim 4, characterized in that, The mounting part is provided with a first through hole, and the connecting wall is provided with a second through hole that is opposite to the first through hole and communicates with the accommodating space. The adjusting member passes through the first through hole and the second through hole in sequence and is connected to the pressing member.

7. The rotation adjustment structure according to claim 4, characterized in that, The rotating limiting groove is disposed on the side of the fixed body facing the receiving groove, and the second supporting surface and the second limiting surface are respectively disposed on the side of the connecting wall facing the fixed body and the mounting part.

8. The rotation adjustment structure according to claim 1, characterized in that, The adjusting component is a screw, the pressing component is a nut block, the elastic component is a compression spring, the shank of the screw is threadedly connected to the nut block, and the compression spring is sleeved on the outer periphery of the shank of the screw.

9. The rotation adjustment structure according to claim 1, characterized in that, The fastener has clamping bosses on both sides and a locking hole. The locking hole is used to insert a locking member and the locking member is used to clamp and fix the clamping bosses of the fastener in the profile groove.

10. An anti-sway wheel, characterized in that, It includes a pulley and a rotation adjustment structure as described in any one of claims 1 to 9, wherein the pulley is rotatably mounted on the end of the rotating member away from the fixed member via a pulley shaft.

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