Umbrella top clamping mechanism in umbrella folding state based on rope driving

Abstract

A rope-driven umbrella top clamping mechanism in a folded state comprises a clamping mechanism, a rope contraction and relaxation mechanism and a rotation driving mechanism, the clamping mechanism comprises four clamping units, a cylinder, a first clamping platform, a polish rod and a second clamping platform, the four clamping units are evenly distributed on the periphery of the first clamping platform, and the cylinder is arranged on the periphery of the first clamping platform. The second clamping platform is mounted at the upper end of the cylinder, and the lower end of the cylinder is mounted on the rotary driving mechanism; each clamping unit comprises a clamping jaw, a first connecting rod and a second connecting rod. According to the rope-driven umbrella top clamping mechanism in the folded state, the umbrella top can be clamped, the contact area of a clamp and an umbrella cover is reduced, and follow-up arrangement of the umbrella cover is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of umbrella clamping mechanisms, in particular to a rope-driven umbrella top clamping mechanism in a folded state. Background Art

[0002] With the arrival of summer, especially in the southern region, the abundant rainfall makes the use of umbrellas more and more frequent. However, the surface of the umbrella will be damp after use, and it is easy to cause raindrops to drip into the room, making the ground slippery. However, if the umbrella is placed outdoors, it is easy to come into direct contact with the ground, and the umbrella surface is easy to get dirty.

[0003] At present, products such as umbrella stands for temporarily placing umbrellas on the market have a large contact area for storing umbrellas. Summary of the invention

[0004] In order to overcome the defects of the prior art, the utility model provides a rope-driven umbrella top clamping mechanism for a folded umbrella, which can clamp the umbrella top, reduce the contact area of ​​the clamp on the umbrella surface, facilitate the subsequent arrangement of the umbrella surface, and reduce the time people spend on arranging umbrellas.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A rope-driven umbrella top clamping mechanism for a folded umbrella comprises a clamping mechanism, a rope contraction and relaxation mechanism and a rotation drive mechanism, wherein the clamping mechanism comprises four clamping units, a cylinder, a first clamping platform, a bare rod and a second clamping platform, wherein the four clamping units are evenly distributed around the first clamping platform, the second clamping platform is mounted on the upper end of the cylinder, and the lower end of the cylinder is mounted on the rotation drive mechanism;

[0007] Each clamping unit comprises a clamping claw, a first connecting rod and a second connecting rod, wherein the clamping claw is connected to the upper end of the first connecting rod and is hinged to the first clamping platform, the lower end of the first connecting rod is hinged to the upper end of the second connecting rod, the lower end of the second connecting rod is hinged to the second clamping platform, the first clamping platform is fixedly mounted on the upper end of the light rod, and the lower end of the light rod is slidably mounted on the second clamping platform; a compression spring is sleeved on the outside of each light rod, and the upper and lower ends of the compression spring are respectively connected to the first clamping platform and the second clamping platform; a boss is also provided on the first clamping platform, and the clamping claws of the four clamping units are evenly distributed around the boss;

[0008] The rope contraction and relaxation mechanism includes a rope, a winding wheel and a stepper motor. The upper end of the rope is connected to the first clamping platform, and the lower end of the rope passes through the second clamping platform, the cylinder, the first synchronous wheel, the first flange, the bottom plate from top to bottom and is connected to the winding wheel. The winding wheel is connected to the motor shaft of the stepper motor, and the stepper motor is installed on the bottom plate through a motor bracket.

[0009] Further, the rotary drive mechanism includes a first synchronous pulley, a second synchronous pulley and a DC motor, the first synchronous pulley is connected to the first bearing through a first flange, and the first bearing is installed on the base plate through a first bearing support; the second synchronous pulley is connected to the second bearing through a second flange, the first synchronous pulley and the second synchronous pulley are connected through a synchronous belt, the second bearing is installed on the base plate through a second bearing support, the DC motor is connected to the second flange through a D-type head, and the DC motor is installed on the base plate; the lower end of the cylinder is installed on the first synchronous pulley.

[0010] The beneficial effects of the utility model are mainly manifested in: achieving top clamping of the folded state of the foldable umbrella, using a relatively sparse rope drive, avoiding the unfavorable factors of increased mass and inertia caused by the motor being directly installed on the rotatable component; the clamping mechanism has less contact with the umbrella surface, which allows the umbrella surface to be processed in the clamping state and can be used in conjunction with other machines; using a synchronous belt for transmission, the rotation of the clamping mechanism can be achieved, preventing the problem of difficulty in drying caused by the umbrella surface being attached when the umbrella is in the folded state, and achieving a better umbrella surface drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a schematic diagram of the utility model from a bottom-up perspective. DETAILED DESCRIPTION

[0013] The utility model is further described below in conjunction with the accompanying drawings.

[0014] Reference Figure 1 and Figure 2 , a rope-driven umbrella top clamping mechanism for a folded umbrella, comprising a clamping mechanism, a rope contraction and relaxation mechanism and a rotary drive mechanism, wherein the clamping mechanism comprises four clamping units, a cylinder 6, a first clamping platform 1, a bare rod 16 and a second clamping platform 5, wherein the four clamping units are evenly distributed around the first clamping platform 1, the second clamping platform 5 is mounted on the upper end of the cylinder 6, and the lower end of the cylinder 6 is mounted on the rotary drive mechanism; the clamping mechanism, the rope contraction and relaxation mechanism and the rotary drive mechanism are all connected to the main control board;

[0015] Each clamping unit comprises a clamping jaw 2, a first connecting rod 3 and a second connecting rod 4, wherein the clamping jaw 2 is connected to the upper end of the first connecting rod 3 and is hinged to the first clamping platform 1, the lower end of the first connecting rod 3 is hinged to the upper end of the second connecting rod 4, the lower end of the second connecting rod 4 is hinged to the second clamping platform 5, the first clamping platform 1 is fixedly mounted on the upper end of the light rod 16, and the lower end of the light rod 16 can be slidably mounted on the second clamping platform 5 up and down; each light rod 16 is covered with a compression spring, and the upper and lower ends of the compression spring are respectively connected to the first clamping platform 1 and the second clamping platform 5; the first clamping platform 1 is also provided with a boss, and the clamping jaws 2 of the four clamping units are evenly distributed around the boss;

[0016] The rope contraction and relaxation mechanism includes a rope 15, a winding wheel 17 and a stepper motor 18. The upper end of the rope 15 is connected to the first clamping platform 1, and the lower end of the rope 15 passes through the second clamping platform 5, the cylinder 6, the first synchronous wheel 7, the first flange, the bottom plate from top to bottom and is connected to the winding wheel. The winding wheel is connected to the motor shaft of the stepper motor 18, and the stepper motor 18 is installed on the bottom plate 13 through the motor bracket 19.

[0017] Further, the rotary drive mechanism includes a first synchronous pulley 7, a second synchronous pulley 10 and a DC motor 20, the first synchronous pulley 7 is connected to the first bearing through a first flange 8, and the first bearing is installed on the base plate 13 through a first bearing support 9; the second synchronous pulley 10 is connected to the second bearing through a second flange 11, the first synchronous pulley 7 and the second synchronous pulley 10 are connected through a synchronous belt 14, the second bearing is installed on the base plate 13 through a second bearing support 12, the DC motor 20 is connected to the second flange 11 through a D-type head, and the DC motor 20 is installed on the base plate 13; the lower end of the cylinder 6 is installed on the first synchronous pulley 7.

[0018] The clamped umbrella is a foldable umbrella. The bottom plate 13 is an acrylic bottom plate, the clamping mechanism is installed above the acrylic bottom plate, and the rope contraction and relaxation mechanism is installed directly below the clamping mechanism. The stepping motor 18 drives the winding wheel 17 to rotate, so as to realize the extension and contraction of the rope 15, thereby realizing the tightening and relaxation of the clamping jaw 1.

[0019] The clamping jaw 2 is rigidly connected with the first connecting rod 3 by bolts, and the clamping jaw 2 is hingedly connected with the first clamping platform 1 by bolts. A certain gap is left between the contact surface of the first clamping platform 1 and the clamping jaw 2 and the first connecting rod 3, which is conducive to relative rotation. At the same time, the double nut is tightened against each other to prevent the connection from loosening. The first connecting rod 3 and the second connecting rod 4 are hingedly connected by bolts and nuts, and the second connecting rod 4 and the second clamping platform 5 are hingedly connected by bolts and nuts. The second clamping platform 5 and the cylinder 6 are rigidly connected by bolts and nuts, the cylinder 6 and the first flange 8 are rigidly connected by bolts and nuts, the first flange 8 and the first bearing are rigidly connected by interference fit, the first bearing and the first bearing support 9 are rigidly connected by interference fit, and the first bearing support 9 and the acrylic bottom plate are rigidly connected by bolts and nuts. The four light rods 16 are covered with compression springs of appropriate length, the light rods 16 and the first clamping platform 1 are rigidly connected, and axial relative sliding can occur between the light rods 16 and the second clamping platform 5.

[0020] The motor bracket 19 is fixed to the acrylic base plate by bolts and nuts, the stepper motor 18 is rigidly connected to the motor bracket 19, and the winding wheel 17 is connected to the D-type head of the stepper motor 18. A set screw is added between the winding wheel 17 and the D-type head of the stepper motor to fix them so that they will not have axial relative displacement.

[0021] The DC motor 20 is connected to the acrylic base plate by bolts and copper columns, the second bearing support 12 is connected to the acrylic base plate by bolts and nuts, the second bearing is interference fit with the second bearing support 12, the second bearing is interference fit with the second flange 11, and the second synchronous pulley 10 is connected to the second flange 11 by bolts and nuts. All hinged joints have a certain gap and are tightened with double nuts. The radius ratio of the two pulleys of the belt drive can be adjusted according to the rotation rate requirements.

[0022] The working principle of the utility model is that after the umbrella is placed on the raised round platform of the first clamping platform 1, the switch is pressed, and the stepper motor 18 drives the winding wheel 17 to rotate, so that the rope 15 is tightened, and the first clamping platform 1 is driven to descend, so that the inclination angle of the first connecting rod becomes smaller, and the clamping claws are gradually tightened to clamp the umbrella top. The DC motor 20 works to drive the second flange 11 and the second synchronous pulley 10 to rotate, and the different radius ratios between the pulleys achieve the deceleration effect. The first synchronous pulley 7 rotates to drive the cylinder 6 and the clamping platform thereon to rotate, so as to realize the rotation of the umbrella, so that the fitting umbrella surface is separated, and at the same time, the effect of shaking off part of the rainwater is achieved, so as to achieve a better drying effect. When the user needs to take the umbrella, the switch is pressed again, the stepper motor 18 reverses, and the compression spring cooperates with the rope 15 to realize the rise of the first clamping platform 1, and at the same time, the clamping claws 2 are relaxed, and the user can take the umbrella.

[0023] The utility model realizes the clamping of the umbrella top in the folded state through the cooperation of the rope 15 and the compression spring, reduces the contact area with the umbrella surface, and allows the umbrella surface to be arranged. The DC motor 20 and the synchronous belt drive realize the rotation of the clamping platform, prevents the umbrella surface from sticking when the umbrella is folded, and plays a certain role in promoting drying.

Claims

1. A rope-driven umbrella top clamping mechanism for a folded umbrella, characterized in that: It includes a clamping mechanism, a rope contraction and relaxation mechanism and a rotation drive mechanism. The clamping mechanism includes four clamping units, a cylinder, a first clamping platform, a polished rod and a second clamping platform. The four clamping units are evenly distributed around the first clamping platform. The second clamping platform is installed at the upper end of the cylinder. The lower end of the cylinder is installed on the rotation drive mechanism. Each clamping unit comprises a clamping claw, a first connecting rod and a second connecting rod, wherein the clamping claw is connected to the upper end of the first connecting rod and is hinged to the first clamping platform, the lower end of the first connecting rod is hinged to the upper end of the second connecting rod, the lower end of the second connecting rod is hinged to the second clamping platform, the first clamping platform is fixedly mounted on the upper end of the light rod, and the lower end of the light rod is slidably mounted on the second clamping platform; a compression spring is sleeved on the outside of each light rod, and the upper and lower ends of the compression spring are respectively connected to the first clamping platform and the second clamping platform; a boss is also provided on the first clamping platform, and the clamping claws of the four clamping units are evenly distributed around the boss; The rope contraction and relaxation mechanism includes a rope, a winding wheel and a stepper motor. The upper end of the rope is connected to the first clamping platform, and the lower end of the rope passes through the second clamping platform, the cylinder, the first synchronous wheel, the first flange, the bottom plate from top to bottom and is connected to the winding wheel. The winding wheel is connected to the motor shaft of the stepper motor, and the stepper motor is installed on the bottom plate through a motor bracket.

2. A rope-driven umbrella top clamping mechanism in a folded state as claimed in claim 1, characterized in that: The rotary drive mechanism includes a first synchronous pulley, a second synchronous pulley and a DC motor, the first synchronous pulley is connected to the first bearing through a first flange, and the first bearing is installed on the base plate through a first bearing support; the second synchronous pulley is connected to the second bearing through a second flange, the first synchronous pulley and the second synchronous pulley are connected through a synchronous belt, the second bearing is installed on the base plate through a second bearing support, the DC motor is connected to the second flange through a D-type head, and the DC motor is installed on the base plate; the lower end of the cylinder is installed on the first synchronous pulley.

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