Novel anti-rotation device

Abstract

The utility model relates to the field of tying belt knob tightness, in particular to a novel anti-rotation device which comprises a primary seat and a secondary seat, a plurality of sliding groove bodies are arranged on the upper end face of the primary seat, the sliding groove bodies are evenly distributed along the circumference of the primary seat, sliding blocks are arranged in the sliding groove bodies in a sliding mode, and the secondary seat is connected with the primary seat. The center line of each sliding block is tangent to a concentric circle of the mother base, the radius difference value of the concentric circles is smaller than 15% of the radius of the mother base, the ends, away from the peripheral edge of the mother base, of the sliding blocks are connected through an elastic ring body, the ends, away from the center of the mother base, of the sliding blocks are provided with rotation-preventing tooth blocks, and the son base is located on the outer side of the circumference of the mother base. An anti-rotation tooth block is arranged on the inner side wall of the son seat, an anti-rotation tooth ring is arranged on the inner side wall of the son seat, the anti-rotation tooth block is meshed with the anti-rotation tooth ring, when the son seat rotates clockwise relative to the mother seat, rotation is achieved, and when the son seat rotates anticlockwise relative to the mother seat, anti-rotation is achieved. The technical problems that an existing non-return body is poor in stability and short in service life are solved.

Description

Technical Field

[0001] The utility model relates to the field of lace twisting and tightening, in particular to a novel anti-rotation device. Background Art

[0002] At present, a new type of rope tensioning and twisting device and its anti-reverse structure are disclosed in Chinese Patent No.: 202320155870.0, including a seat body, a wire wheel and a twisting piece, the wire wheel is embedded in the seat body, the twisting piece is connected to the seat body, and the seat body is provided with teeth and grooves; the twisting piece includes a wheel rigid component, the wheel rigid component is provided with convex teeth, the meshing structure of the teeth and grooves and the convex teeth is meshed up and down and is a structure that can be rotated in one direction to prevent reverse rotation, and the wire wheel and the twisting piece are provided with a driving structure that can be connected, driven or separated; when the twisting piece moves relative to the seat body, an engaged tightening mode in which the teeth and grooves are engaged with the convex teeth and a free rope loosening mode in which the teeth and grooves are separated from the convex teeth can be achieved.

[0003] At present, there are many types of loosening and tightening devices disclosed on the market. Some have complex structures that are not conducive to development and production for universal use, and some have low structural design strength, short service life, and poor loosening and tightening feel. Among them, the anti-reverse body usually adopts elastic recovery to achieve effective anti-rotation, so the structure of the anti-reverse body is particularly important. An effective structure can greatly enhance stability and service life. The applicant has made corresponding improvements to the existing anti-reverse body. Utility Model Content

[0004] Therefore, in view of the above problems, the utility model proposes a novel anti-rotation device, which solves the technical problems of poor stability and short service life of the existing anti-reverse body.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a novel anti-rotation device, including a mother seat and a child seat, a plurality of sliding grooves are arranged on the upper end surface of the mother seat, each sliding groove is evenly distributed along the circumference of the mother seat, a slider is slidably arranged in the sliding groove, the center line of each slider is tangent to a concentric circle of the mother seat, the radius difference of the plurality of concentric circles is less than 15% of the radius of the mother seat, one end of the slider is located in the mother seat, and each slider is connected to the end away from the circumference of the mother seat through an elastic ring body, and the elastic ring body presses the slider so that the other end of the slider The anti-rotation tooth block is arranged on one end of the slider away from the center of the slider, the sub-seat is located outside the circumference of the slider, and the anti-rotation tooth ring is arranged on the inner wall of the sub-seat, and the anti-rotation tooth block is meshed with the anti-rotation tooth ring. When the sub-seat rotates clockwise relative to the slider, the anti-rotation tooth ring presses the anti-rotation tooth block, thereby pushing the slider to slide along the sliding groove body, thereby pressing the elastic ring body to deform and realize rotation. When the sub-seat rotates counterclockwise relative to the slider, the anti-rotation tooth block clamps the anti-rotation tooth ring, and cannot push the slider to slide along the sliding groove body, thereby realizing anti-rotation.

[0006] Furthermore, an S-shaped elastic portion for enhancing elastic performance is provided on the elastic ring body between two adjacent sliding blocks.

[0007] Furthermore, the number of the sliders is three, and the three sliders are arranged at equal intervals and extend outward along the 30°-60° direction of the circumference of the elastic ring body.

[0008] Furthermore, the elastic ring body, the sliding block and the S-shaped elastic portion are integrated.

[0009] Furthermore, a limiting member for limiting the sliding block from separating from the sliding groove body is arranged on the female seat.

[0010] Furthermore, the connection portion between the elastic ring body and the slider is located at the midline of the slider.

[0011] By adopting the above technical solution, the beneficial effects of the utility model are:

[0012] 1. In this scheme, by setting the mother seat and the child seat, a more stable anti-rotation can be achieved, and its clamping strength is higher and the service life is longer. Among them, by setting the sliding groove body, the slider, and the elastic ring body, the anti-rotation tooth block and the anti-rotation tooth ring can be matched, and this matching can achieve stronger stability. Among them, when the child seat rotates clockwise relative to the mother seat, the anti-rotation tooth ring presses the anti-rotation tooth block, thereby pushing the slider to slide along the sliding groove body, thereby pressing the elastic ring body to deform and achieve rotation. When the child seat rotates counterclockwise relative to the mother seat, the anti-rotation tooth block clamps the anti-rotation tooth ring, and cannot push the slider to slide along the sliding groove body to achieve anti-rotation. The setting of the sliding groove body here is not in the radial direction, but offset at a certain angle. This offset is to compress the slider to quickly enter the sliding groove body when rotating clockwise, and also to ensure that it can be effectively clamped when rotating counterclockwise to prevent the slider from sliding into the sliding groove body. In the conventional setting, the deflection angle of 30-60 degrees is optimal.

[0013] In addition, the center line of each slider is tangent to a concentric circle of the mother seat, and the radius difference of multiple concentric circles is less than 15% of the radius of the mother seat. In this way, the slider can achieve better sliding uniformity, that is, when the anti-rotation gear ring presses the anti-rotation gear block, the sliding of the slider is basically synchronized.

[0014] 2. In order to achieve better cost reduction and provide elastic performance, the setting of the S-shaped elastic part can provide effective elastic performance, so that when the slider slides into the mother seat, it will have a better ability to absorb deformation, and store the deformation ability, and then release it, which is conducive to prolonging the service life. In this solution, the elastic annular body, the slider, and the S-shaped elastic part are manufactured in an integrated molding manner, and the material is plastic or nylon material with good deformation recovery performance.

[0015] 3. The setting of the limiting piece can effectively ensure the cooperation between the slider and the sliding groove body. One limiting piece can be set so that the snap connection can be achieved.

[0016] 4. The connection portion between the elastic ring and the slider is located at the center line of the slider, which can achieve better sliding stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural diagram of the mother seat.

[0019] Figure 3 It is a three-dimensional structural diagram of the elastic ring body and the female seat.

[0020] Figure 4 yes Figure 2 Schematic diagram of the forces acting on the

[0021] Figure 5 It is a schematic diagram of the structure of the elastic ring body and the slider.

[0022] Reference numerals:

[0023] 1. Female seat; 11. Sliding groove body; 12. Limiting member; 2. Sub-seat; 21. Anti-rotation gear ring; 31. Sliding block; 32. Elastic ring body; 33. Anti-rotation gear block; 34. S-shaped elastic part. DETAILED DESCRIPTION

[0024] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0025] refer to Figures 1 to 5The present embodiment provides a novel anti-rotation device, comprising a mother seat 1 and a child seat 2. A plurality of sliding grooves 11 are arranged on the upper end surface of the mother seat 1. Each sliding groove 11 is evenly distributed along the circumference of the mother seat 1. A slider 31 is slidably arranged in the sliding groove 11. The midline of each slider 31 is tangent to a concentric circle of the mother seat 1. The radius difference of the plurality of concentric circles is less than 15% of the radius of the mother seat 1. One end of the slider 31 is located in the mother seat 1. The end of each slider 31 away from the circumference of the mother seat 1 is connected by an elastic ring 32. The elastic ring 32 presses the slider 31 so that the other end of the slider 31 has a tendency to extend out of the mother seat 1. An anti-rotation tooth block 33 is provided on the end of the slider 31 away from the center of the mother seat 1, the sub-seat 2 is located outside the circumference of the mother seat 1, and an anti-rotation tooth ring 21 is provided on the inner wall of the sub-seat 2, and the anti-rotation tooth block 33 is meshed with the anti-rotation tooth ring 21. When the sub-seat 2 rotates clockwise relative to the mother seat 1, the anti-rotation tooth ring 21 presses the anti-rotation tooth block 33, thereby pushing the slider 31 to slide along the sliding groove body 11, thereby pressing the elastic ring body 32 to deform and realize rotation. When the sub-seat 2 rotates counterclockwise relative to the mother seat 1, the anti-rotation tooth block 33 is clamped in the anti-rotation tooth ring 21, and the slider 31 cannot be pushed to slide along the sliding groove body 11, thereby realizing anti-rotation.

[0026] The elastic ring body 32 is provided with an S-shaped elastic portion 34 between two adjacent sliders 31 to enhance the elastic performance. The number of the sliders 31 is three, and the three sliders 31 are arranged at equal intervals and extend outward along the 30°-60° direction of the circumference of the elastic ring body 32. Figure 2 The elastic ring body 32, the slider 31 and the S-shaped elastic portion 34 are formed in one piece.

[0027] The female seat 1 is provided with a limiting member 12 for limiting the sliding block 31 from being separated from the sliding groove 11. The connection portion between the elastic ring 32 and the sliding block 31 is located at the midline of the sliding block 31.

[0028] Refer to Figure 4As shown, when the sub-seat rotates counterclockwise, the force Fa exerted by the anti-rotation gear ring on the anti-rotation tooth block of the slider is, and the direction of the force Fa is mainly the force Fay in the vertical direction along the sliding direction of the slider, which will achieve reverse rotation blocking, and through the setting of the inclination angle of the anti-rotation gear ring and the setting of the inclination angle of the anti-rotation gear block, when the reverse rotation occurs, the anti-rotation tooth block will abut against the anti-rotation gear ring and provide the anti-rotation gear ring with an outward pulling force Fax, so that the anti-rotation gear ring is closer to the anti-rotation tooth block, and the optimal condition is that the smaller the angle between Fa and Fay, the better the anti-rotation tooth block can be achieved; when the sub-seat rotates clockwise, the force Fb exerted by the anti-rotation gear ring on the anti-rotation tooth block of the slider is, and the direction of the force Fa is mainly the force Fbx in the sliding direction of the slider, which will make the slider overcome the elastic force and retract into the channel, wherein the directions of Fb and Fbx are close to coincide, and the component force Fby of Fb in the vertical direction is small, which will not affect the sliding of the slider.

[0029] Refer to Figure 5 As shown, the three sliders 31 can also be tangent to three different circles C0, C1, and C2 respectively, and the radius difference between the circles C0, C1, and C2 is less than 15% of the radius of the mother seat 1. When tangent, the sliders 31 are in a state without external force. Of course, the center lines L of the three sliders 31 can all be tangent to the same circle C0, which is a better state.

[0030] In actual application, the sub-base can be combined with other components, for example, to form a cover body, and the mother base can also be combined with other components, such as a winding mechanism. For details, please refer to Chinese Patent No.: 202320155870.0, which discloses a new rope tensioning and twisting device and its anti-reverse structure.

[0031] In the specific configuration, the slider 31 may extend out of the mother seat 1 or not, and the elastic ring body 32 mainly provides an elastic force to the slider 31 to realize the tendency of the slider 31 to slide outward, thereby realizing the close fitting contact between the anti-rotation tooth block 33 and the anti-rotation tooth ring 21. The slider 31 fits the inner side of the sub-seat 2 and is not very related to the size of the mother seat 1.

[0032] The beneficial effects of the utility model are:

[0033] 1. In this scheme, by setting the mother seat and the child seat, a more stable anti-rotation can be achieved, and its clamping strength is higher and the service life is longer. Among them, by setting the sliding groove body, the slider, and the elastic ring body, the anti-rotation tooth block and the anti-rotation tooth ring can be matched, and this matching can achieve stronger stability. Among them, when the child seat rotates clockwise relative to the mother seat, the anti-rotation tooth ring presses the anti-rotation tooth block, thereby pushing the slider to slide along the sliding groove body, thereby pressing the elastic ring body to deform and achieve rotation. When the child seat rotates counterclockwise relative to the mother seat, the anti-rotation tooth block clamps the anti-rotation tooth ring, and cannot push the slider to slide along the sliding groove body to achieve anti-rotation. The setting of the sliding groove body here is not in the radial direction, but offset at a certain angle. This offset is to compress the slider to quickly enter the sliding groove body when rotating clockwise, and also to ensure that it can be effectively clamped when rotating counterclockwise to prevent the slider from sliding into the sliding groove body. In the conventional setting, the deflection angle of 30-60 degrees is optimal.

[0034] In addition, the center line of each slider is tangent to a concentric circle of the mother seat, and the radius difference of multiple concentric circles is less than 15% of the radius of the mother seat. In this way, the slider can achieve better sliding uniformity, that is, when the anti-rotation gear ring presses the anti-rotation gear block, the sliding of the slider is basically synchronized.

[0035] 2. In order to achieve better cost reduction and provide elastic performance, the setting of the S-shaped elastic part can provide effective elastic performance, so that when the slider slides into the mother seat, it will have a better ability to absorb deformation, and store the deformation ability, and then release it, which is conducive to prolonging the service life. In this solution, the elastic annular body, the slider, and the S-shaped elastic part are manufactured in an integrated molding manner, and the material is plastic or nylon material with good deformation recovery performance.

[0036] 3. The setting of the limiting piece can effectively ensure the cooperation between the slider and the sliding groove body. One limiting piece can be set so that the snap connection can be achieved.

[0037] 4. The connection portion between the elastic ring and the slider is located at the center line of the slider, which can achieve better sliding stability.

[0038] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A new anti-rotation device, characterized in that: The invention comprises a mother seat and a child seat, wherein a plurality of sliding grooves are arranged on the upper end surface of the mother seat, and each sliding groove is evenly distributed along the circumference of the mother seat, and a slider is slidably arranged in the sliding groove, and the midline of each slider is tangent to a concentric circle of the mother seat, and the radius difference of the plurality of concentric circles is less than 15% of the radius of the mother seat, and one end of the slider is located in the mother seat, and each slider is connected to the end away from the circumference of the mother seat through an elastic ring body, and the elastic ring body presses the slider so that the other end of the slider has a tendency to extend out of the mother seat, and the slider is away from the mother seat. An anti-rotation tooth block is arranged on one end of the center of the mother seat, the child seat is located outside the circumference of the mother seat, and an anti-rotation tooth ring is arranged on the inner wall of the child seat, and the anti-rotation tooth block is meshed with the anti-rotation tooth ring. When the child seat rotates clockwise relative to the mother seat, the anti-rotation tooth ring presses the anti-rotation tooth block, thereby pushing the slider to slide along the sliding groove body, thereby pressing the elastic ring body to deform and realize rotation. When the child seat rotates counterclockwise relative to the mother seat, the anti-rotation tooth block clamps the anti-rotation tooth ring, and cannot push the slider to slide along the sliding groove body, thereby realizing anti-rotation.

2. A novel anti-rotation device according to claim 1, characterized in that: An S-shaped elastic part for enhancing elastic performance is arranged on the elastic ring body between two adjacent sliding blocks.

3. A novel anti-rotation device according to claim 2, characterized in that: The number of the sliding blocks is three, and the three sliding blocks are arranged at equal intervals and extend outwards along the 30°-60° direction of the circumference of the elastic ring body.

4. A novel anti-rotation device according to claim 2, characterized in that: The elastic ring body, the sliding block and the S-shaped elastic part are integrated.

5. A novel anti-rotation device according to claim 1, characterized in that: The female seat is provided with a limiting member for limiting the sliding block from separating from the sliding groove body.

6. A novel anti-rotation device according to any one of claims 1 to 4, characterized in that: The connection portion between the elastic ring body and the slider is located at the center line of the slider.

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