Adjustable clamp

Abstract

The utility model discloses an adjustable hoop, relates to the technical field of headwear, and aims to solve the problem that the body feeling of a user is affected as the headband cannot be adjusted according to the width of the face of the user when the user wears the headband. According to the technical scheme, the hair clasp comprises a hair clasp body, the hair clasp body comprises a first connecting block, the two ends of the first connecting block are rotationally connected with a plurality of second connecting blocks, one ends of the second connecting blocks are rotationally connected with a third connecting block, cavities are formed in the first connecting block, the second connecting blocks and the third connecting block, and adjusting mechanisms are arranged in the cavities; the first connecting block and the second connecting block are connected through a rotating mechanism, and the second connecting block and the third connecting block are connected through a rotating mechanism. According to the hair clasp, the effect of adjusting the included angle between every two adjacent connecting blocks can be achieved through the adjusting mechanism, so that the effect of changing the distance between the hoop bodies is achieved, the connecting blocks are made of polyethylene, good plasticity is achieved, good corrosion resistance is achieved, and the service life of the whole hair clasp is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of headwear, and more specifically, to an adjustable clamp. Background Art

[0002] A headband is a semicircular headdress usually made of cloth or plastic. It is usually worn on the head to hold the hair and prevent the hair from blocking the field of vision.

[0003] Publication No. CN201008411Y discloses a headband, the technical solution of which includes: a headband body and a protrusion, wherein the protrusion is arranged on the outer surface of the headband body. A further improvement is that a decorative anti-slip layer is arranged between the headband body and the protrusion, the decorative anti-slip layer is coated on or pasted on the headband body, and the protrusion is printed on or pasted on the decorative anti-slip layer.

[0004] The above technical solution can tighten the hair and prevent the hair from being broken by the headband when the user uses it. Therefore, the utility model has the advantages of simple structure, beautiful appearance and practicality. However, in the above technical solution, the headband body is not provided with a structure for adjusting the distance between the headbands, resulting in the headband being unable to be adjusted according to the width of the user's face. If the purchased headband is too small, the user cannot carry it. If the purchased headband is too large, the headband cannot be fixed to the user's head, resulting in the headband falling off, affecting the user's physical sensation.

[0005] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an adjustable headband, which solves the problem that the headband cannot be adjusted according to the width of the user's face when worn, thus affecting the user's physical sensation.

[0007] The above technical purpose of the utility model is achieved through the following technical solutions: an adjustable clamp, including a headband body, the headband body including a connecting block 1, both ends of the connecting block 1 are rotatably connected to a plurality of connecting blocks 2, and the ends of the plurality of connecting blocks 2 away from the connecting block 1 are rotatably connected to connecting blocks 3, cavities are provided in the connecting blocks 1, and an adjusting mechanism for controlling the rotation amplitude of the connecting blocks 2 and 3 is provided in the cavity, and the connecting blocks 1 and 2, and the connecting blocks 2 and 3 are connected via a rotating mechanism.

[0008] By adopting the above technical solution, when the spacing between the headbands needs to be adjusted, the adjusting mechanism drives the connecting block one, the connecting block two, and the connecting block three to start rotating, and at the same time, an angle appears between the connecting block one, the connecting block two, and the connecting block three, and the angle is used to drive the connecting block one, the connecting block two, and the connecting block three to form an arc shape, and then the adjusting mechanism drives the connecting block one, the connecting block two, and the connecting block three to rotate again, and the angle between the connecting block one, the connecting block two, and the connecting block three is adjusted by the adjusting mechanism, so as to achieve the effect of changing the spacing between the clamps.

[0009] The utility model is further configured as follows: the rotating mechanism includes a fixed block and a rotating block located between the connecting block one and the connecting block two and between the connecting block two and the connecting block three, the two ends of the connecting block one are fixedly connected to the fixed block, one end of several connecting blocks two are fixedly connected to the fixed block and the other end is fixedly connected to the rotating block, one end of two connecting blocks three are fixedly connected to the rotating block, and a rotating groove for the rotating block to rotate is provided on the fixed block.

[0010] By adopting the above technical solution, the connection method between connecting block one and connecting block two, as well as between connecting block two and connecting block three is further limited, which can facilitate driving the connecting block one and connecting block two, as well as between connecting block two and connecting block three to rotate relative to each other. At the same time, it can also improve the stability of connecting block one, connecting block two, and connecting block three after connection, and avoid the adjacent connecting block one, connecting block two, and connecting block three from detaching from each other, affecting normal use.

[0011] The utility model is further configured as follows: the adjustment mechanism includes two adjustment strips of the same length and symmetrical to each other that are slidably connected in the cavity and a restoration component for driving a number of connection blocks two and three to return to their original positions; the inner side wall of the connection block one is rotatably connected with an adjustment rod, the adjustment rod is located at the center of the connection block one, one end of the two adjustment strips is fixedly connected to the connection block three, and the other end passes through the connection block two and the connection block one and is clockwise wound around the side wall of the adjustment rod; the connection block one is provided with a driving component for driving the adjustment rod to rotate.

[0012] By adopting the above technical solution, when it is necessary to adjust the spacing between the headbands, the driving component drives the adjusting rod to start rotating clockwise, and at the same time drives the two adjusting strips to wrap around the side walls of the adjusting rod. The adjusting strip is affected by the adjusting rod and starts to move in the direction of the adjusting rod, and drives the lengths of the two adjusting strips to start shortening. At this time, the connecting block 1, the connecting block 2, and the connecting block 3 are affected by the lengths of the adjusting strips and start to rotate relative to each other, and at the same time drive the angles between the adjacent connecting blocks 1, 2, and 3 to start shrinking, thereby achieving the effect of driving the spacing between the headband bodies to shrink. When it is necessary to drive the headband back to its original position, it is only necessary to drive the adjusting rod to rotate counterclockwise through the driving component. At this time, the recovery component loses its restriction and starts to drive the connecting block 1, the connecting block 2, and the connecting block 3 back to their original position, thereby achieving the effect of controlling the rotation amplitude of several adjusting rods.

[0013] The utility model is further configured as follows: the restoration component includes two torsion springs located on both sides of the rotating block, the two ends of the two torsion springs are respectively connected to the rotating block and the fixed block, and when the torsion springs are in a natural state, the connecting block one, the connecting block two, and the connecting block three are symmetrically arranged with the adjusting rod as the axis.

[0014] By adopting the above technical solution, when the headband needs to be driven to restore, the adjusting rod is rotated counterclockwise to drive the two adjusting strips wrapped around the adjusting rod to start moving in the direction away from the adjusting rod. At this time, the two torsion springs begin to deform and restore, and drive the connecting block one, the connecting block two, and the connecting block three back to their original positions, thereby achieving the effect of driving the connecting block one, the connecting block two, and the connecting block three back to their original positions.

[0015] The utility model is further configured as follows: the driving assembly includes a holding block rotatably connected to the top of a connecting block and a limiting member for limiting the rotation of the holding block, a square rod is fixedly connected to the bottom of the holding block, a through hole is provided on the top of the connecting block for the square rod to rotate, and a square groove is provided on the adjusting rod for the square rod to slide.

[0016] By adopting the above technical solution, when it is necessary to drive the adjusting rod to rotate, an upward pulling force is applied to the holding block, and the square rod is driven to slide in the square groove. At the same time, the restriction between the holding block and the connecting block is removed by the limiting block. Then, the holding block is rotated, and the square rod is driven to rotate in the through hole. At the same time, the square rod drives the adjusting rod to rotate, thereby achieving the effect of driving the adjusting rod to rotate.

[0017] The utility model is further configured as follows: the limiting member comprises a plurality of positioning blocks fixedly connected to a top of the connecting block, and the bottom of the holding block is provided with positioning grooves for inserting the plurality of positioning blocks.

[0018] By adopting the above technical solution, when it is necessary to drive the adjusting rod to rotate, an upward pulling force is applied to the holding block to drive the holding block to move upward, and at the same time, the positioning block and the positioning groove are driven to disengage from each other. At this time, the holding block loses its restriction and can be driven to rotate. After the spacing between the headband bodies is adjusted, pressure is applied to the holding block to drive the holding block positioning block into the positioning groove. Through the setting of the positioning block, the holding block is unable to continue to rotate, thereby achieving the effect of limiting the rotation of the holding block.

[0019] The utility model is further configured as follows: the three inner side walls of the two connecting blocks are fixedly connected with connecting rods, and the adjusting strips are fixedly connected with the connecting rods.

[0020] By adopting the above technical solution, when it is necessary to drive the adjusting rod to rotate, an upward pulling force is applied to the holding block to drive the holding block to move upward, and at the same time, the positioning block and the positioning groove are driven to disengage from each other. At this time, the holding block loses its restriction and can be driven to rotate. After the spacing between the headband bodies is adjusted, pressure is applied to the holding block to drive the holding block positioning block into the positioning groove. Through the setting of the positioning block, the holding block is unable to continue to rotate, thereby achieving the effect of limiting the rotation of the holding block.

[0021] In summary, the utility model has the following beneficial effects: when the spacing between the headbands needs to be adjusted, the adjusting mechanism is used to drive the connecting block one, the connecting block two, and the connecting block three to start rotating, and at the same time, an angle will appear between the connecting block one, the connecting block two, and the connecting block three, and the angle is used to drive the connecting block one, the connecting block two, and the connecting block three to form an arc shape, and then the adjusting mechanism is used again to drive the connecting block one, the connecting block two, and the connecting block three to rotate, and the angle between the connecting block one, the connecting block two, and the connecting block three is adjusted by the adjusting mechanism, so as to achieve the effect of changing the spacing between the clamps. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0023] Figure 2 for Figure 1 A magnified image of point A;

[0024] Figure 3 It is a cross-sectional view of the utility model;

[0025] Figure 4 for Figure 3 The enlarged view of point B;

[0026] Figure 5 for Figure 3 Enlarged view of point C.

[0027] In the figure: 1. connecting block one; 2. connecting block two; 3. connecting block three; 4. fixing block; 5. rotating block; 6. rotating groove; 7. adjusting bar; 8. adjusting rod; 9. torsion spring; 10. holding block; 11. square rod; 12. through hole; 13. square groove; 14. positioning block; 15. positioning groove; 16. connecting rod. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] An adjustable clamp, such as Figure 1-Figure 5As shown, the headband body includes a connecting block 1, both ends of the connecting block 1 are rotatably connected to a plurality of connecting blocks 2 2, and one end of the plurality of connecting blocks 2 2 away from the connecting block 1 is rotatably connected to a connecting block 3 3, and the connecting blocks 1 1, 2 and 3 are each provided with a cavity, and an adjusting mechanism for controlling the rotation amplitude of the connecting blocks 2 2 and 3 is provided in the cavity, and the connecting blocks 1 1 and 2 2 and the connecting blocks 2 2 and 3 3 are connected via a rotating mechanism, and when the spacing between the headbands needs to be adjusted During adjustment, the adjusting mechanism is used to drive the connecting block 1, connecting block 2, and connecting block 3 to start rotating. At the same time, an angle will appear between the connecting block 1, connecting block 2, and connecting block 3. The angle is used to drive the connecting block 1, connecting block 2, and connecting block 3 to form an arc shape. Then, the adjusting mechanism is used to drive the connecting block 1, connecting block 2, and connecting block 3 to rotate again. The angle between the connecting block 1, connecting block 2, and connecting block 3 is adjusted by the adjusting mechanism, so as to achieve the effect of changing the spacing between the clamps.

[0032] like Figure 1-Figure 3 As shown, the rotating mechanism includes a fixed block 4 and a rotating block 5 located between the connecting block 1 and the connecting block 2 2 and between the connecting block 2 2 and the connecting block 3 3. The two ends of the connecting block 1 are fixedly connected to the fixed block 4, one end of several of the connecting blocks 2 2 is fixedly connected to the fixed block 4, and the other end is fixedly connected to the rotating block 5, and one end of two of the connecting blocks 3 3 is fixedly connected to the rotating block 5. The fixed block 4 is provided with a rotating groove 6 for the rotating block 5 to rotate, which can facilitate the mutual rotation between the connecting block 1 and the connecting block 2 2 and between the connecting block 2 2 and the connecting block 3 3, and at the same time can also improve the stability of the connecting blocks 1, 2 and 3 after connection, and avoid the adjacent connecting blocks 1, 2 and 3 from being separated from each other, affecting normal use.

[0033] like Figure 1-Figure 5As shown, the adjustment mechanism includes two adjustment bars 7 of the same length and symmetrical to each other which are slidably connected in the cavity and a restoring assembly for driving a plurality of connecting blocks 2 2 and connecting blocks 3 3 back to their original positions. An adjusting rod 8 is rotatably connected to the inner side wall of the connecting block 1, and the adjusting rod 8 is located at the center of the connecting block 1. One end of the two adjustment bars 7 is fixedly connected to the connecting block 3 3, and the other end passes through the connecting block 2 2 and the connecting block 1 and is wound around the side wall of the adjusting rod 8 clockwise. A driving assembly for driving the adjusting rod 8 to rotate is provided on the connecting block 1. The restoring assembly includes two torsion springs 9 located on both sides of the rotating block 5, and the two ends of the two torsion springs 9 are respectively connected to the rotating block 5 and the fixed Block 4 is connected. When the torsion spring 9 is in the natural state, the connecting blocks 1, 2 and 3 are symmetrically arranged with the adjusting rod 8 as the axis. The driving assembly includes a holding block 10 rotatably connected to the top of the connecting block 1 and a limiting member for limiting the rotation of the holding block 10. A square rod 11 is fixedly connected to the bottom of the holding block 10. A through hole 12 is provided on the top of the connecting block 1 for the square rod 11 to rotate. A square groove 13 is provided on the adjusting rod 8 for the square rod 11 to slide. The limiting member includes a plurality of positioning blocks 14 fixedly connected to the top of the connecting block 1. A positioning groove 15 is provided at the bottom of the holding block 10 for the plurality of positioning blocks 14 to be inserted.

[0034] When the spacing between the headbands needs to be adjusted, an upward pulling force is applied to the holding block 10 to drive the holding block 10 to move upward, and at the same time drive the positioning block 14 and the positioning groove 15 to disengage from each other. At this time, the holding block 10 loses its restriction, and then the holding block 10 is rotated, and the square rod 11 is driven to rotate in the through hole 12. At the same time, the square rod 11 drives the adjusting rod 8 to rotate, and at the same time drives the two adjusting strips 7 to wrap around the side wall of the adjusting rod 8. The adjusting strip 7 is affected by the adjusting rod 8 and starts to move in the direction of the adjusting rod 8, and drives the length of the two adjusting strips 7 to start to shorten. At this time, the connecting block 1, the connecting block 2, and the connecting block 3 are affected by the length of the adjusting strip 7 and start to rotate with each other. The angles between the adjacent connecting blocks 1, 2 and 3 are driven to begin to decrease, thereby achieving the effect of driving the spacing between the headband bodies to decrease. When the headband needs to be driven back to its original position, the adjusting rod 8 is rotated counterclockwise to drive the two adjusting strips 7 wrapped around the adjusting rod 8 to begin to move away from the adjusting rod 8. At this time, the two torsion springs 9 begin to deform and restore, and drive the connecting blocks 1, 2 and 3 back to their original positions. Subsequently, pressure is applied to the gripping block 10 to drive the positioning block 14 of the gripping block 10 to enter the positioning groove 15. Through the setting of the positioning block 14, the gripping block 10 is driven to be unable to continue to rotate, thereby achieving the effect of controlling the rotation amplitude of several adjusting rods 8.

[0035] like Figure 1-Figure 3As shown, the inner walls of the connecting blocks 1, 2 and 3 are fixedly connected with connecting rods 16, and the adjusting strip 7 is fixedly connected to the connecting rods 16. When it is necessary to drive the adjusting rod 8 to rotate, an upward pulling force is applied to the gripping block 10 to drive the gripping block 10 to move upward, and at the same time, the positioning block 14 and the positioning groove 15 are driven to disengage from each other. At this time, the gripping block 10 loses its restriction and can be driven to rotate. After the spacing between the headband bodies is adjusted, pressure is applied to the gripping block 10 to drive the gripping block 10 and the positioning block 14 to enter the positioning groove 15. By setting the positioning block 14, the gripping block 10 cannot continue to rotate, thereby achieving the effect of limiting the rotation of the gripping block 10.

[0036] The utility model is used as follows during normal use: when it is necessary to adjust the spacing between the headbands, an upward pulling force is applied to the holding block 10 to drive the holding block 10 to move upward, and at the same time drive the positioning block 14 and the positioning groove 15 to disengage from each other, at this time the holding block 10 loses its restriction, and then the holding block 10 is rotated, and the square rod 11 is driven to rotate in the through hole 12, and at the same time the square rod 11 drives the adjusting rod 8 to rotate, and at the same time drives the two adjusting strips 7 to wrap around the side wall of the adjusting rod 8, the adjusting strip 7 is affected by the adjusting rod 8, begins to move in the direction of the adjusting rod 8, and drives the length of the two adjusting strips 7 to begin to shorten, at this time the connecting block 1, the connecting block 2, and the connecting block 3 are affected by the length of the adjusting strip 7 and begin to rotate with each other, and at the same time drives the angle between the adjacent connecting blocks 1, 2, and 3 to begin to shrink.

[0037] When it is necessary to drive the headband back to its original position, the adjusting rod 8 is rotated counterclockwise to drive the two adjusting strips 7 wrapped around the adjusting rod 8 to start moving away from the adjusting rod 8. At this time, the two torsion springs 9 begin to deform and restore, and drive the connecting blocks 1 1, 2, and 3 back to their original positions. Then, pressure is applied to the holding block 10 to drive the positioning block 14 of the holding block 10 into the positioning groove 15. The angle between the connecting blocks 1 1, 2, and 3 is adjusted by setting the positioning block 14, so as to achieve the effect of changing the spacing between the clamps.

[0038] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An adjustable headband, comprising a headband body, characterized in that: The headband body comprises a connecting block 1 (1), both ends of the connecting block 1 (1) are rotatably connected to a plurality of connecting blocks 2 (2), and one end of the plurality of connecting blocks 2 (2) away from the connecting block 1 (1) is rotatably connected to a connecting block 3 (3), each of the connecting block 1 (1), the connecting block 2 (2) and the connecting block 3 (3) is provided with a cavity, and an adjusting mechanism for controlling the rotation amplitude of the connecting block 2 (2) and the connecting block 3 (3) is provided in the cavity, and the connecting block 1 (1) and the connecting block 2 (2) and the connecting block 3 (3) are connected via a rotating mechanism.

2. The adjustable clamp according to claim 1, characterized in that: The rotating mechanism comprises a fixed block (4) and a rotating block (5) located between the first connecting block (1) and the second connecting block (2) and between the second connecting block (2) and the third connecting block (3); both ends of the first connecting block (1) are fixedly connected to the fixed block (4); one end of a plurality of the second connecting blocks (2) is fixedly connected to the fixed block (4) and the other end is fixedly connected to the rotating block (5); one end of two of the third connecting blocks (3) is fixedly connected to the rotating block (5); and a rotating groove (6) for the rotating block (5) to rotate is provided on the fixed block (4).

3. The adjustable clamp according to claim 2, characterized in that: The adjustment mechanism comprises two adjustment bars (7) of the same length and symmetrical to each other which are slidably connected in the cavity and a restoring assembly for driving a plurality of connection blocks 2 (2) and connection blocks 3 (3) to return to their original positions; an adjustment rod (8) is rotatably connected to the inner side wall of the connection block 1 (1); the adjustment rod (8) is located at the center of the connection block 1 (1); one end of the two adjustment bars (7) is fixedly connected to the connection block 3 (3); the other end passes through the connection block 2 (2) and the connection block 1 (1) and is wound around the side wall of the adjustment rod (8) in a clockwise direction; and a driving assembly for driving the adjustment rod (8) to rotate is provided on the connection block 1 (1).

4. The adjustable clamp according to claim 3, characterized in that: The restoration component comprises two torsion springs (9) located on both sides of the rotating block (5), the two ends of the two torsion springs (9) are respectively connected to the rotating block (5) and the fixed block (4), and when the torsion springs (9) are in a natural state, the connecting block 1 (1), the connecting block 2 (2) and the connecting block 3 (3) are symmetrically arranged with the adjusting rod (8) as the axis.

5. The adjustable clamp according to claim 3, characterized in that: The driving assembly comprises a holding block (10) rotatably connected to the top of a connecting block (1) and a limiting member for limiting the rotation of the holding block (10); a square rod (11) is fixedly connected to the bottom of the holding block (10); a through hole (12) is provided on the top of the connecting block (1) for the square rod (11) to rotate; and a square groove (13) is provided on the adjusting rod (8) for the square rod (11) to slide.

6. The adjustable clamp according to claim 5, characterized in that: The limiting member comprises a plurality of positioning blocks (14) fixedly connected to the top of the connecting block (1), and a positioning groove (15) for inserting the plurality of positioning blocks (14) is provided at the bottom of the holding block (10).

7. The adjustable clamp according to claim 3, characterized in that: The inner side walls of the two connecting blocks (3) are fixedly connected with a connecting rod (16), and the adjusting strip (7) is fixedly connected to the connecting rod (16).

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