Automatic opening and closing umbrella transmission structure

Abstract

The utility model discloses an automatic opening and closing umbrella transmission structure which comprises a handle, a middle rod, an upper nest, a lower nest, umbrella ribs, a motor, a fixed pulley, a pull rope and a transmission structure, the handle is connected with the bottom end of the middle rod, the upper nest is fixed to the top end of the middle rod, the lower nest is movably arranged on the middle rod, and the umbrella ribs are arranged on the lower nest. The umbrella ribs are hinged to the upper nest and the lower nest, the fixed pulley is fixed in the upper nest, one end of the pull rope is fixed to the lower nest, and the other end of the pull rope is fixed to the motor through the fixed pulley. According to the automatic opening and closing umbrella transmission structure, the transmission structure is used for providing power for vertical movement of the middle rod, the pull force of the pull rope is reduced, the service life of the pull rope is prolonged, the transmission structure is simple in structure and easy to operate, and full-automatic opening and closing of the umbrella are achieved.

Description

Technical Field

[0001] The utility model relates to the field of umbrellas, in particular to an automatic opening and closing umbrella transmission structure. Background Art

[0002] The automatic opening and closing umbrellas currently available on the market are mainly mechanical and electric. The control of the mechanical opening and closing umbrella is mainly achieved through many parts such as an opening spring, a bullet head, a cable with one end connected to the bullet head and wound around the pulleys arranged on the middle rod and the lower nest, and a complex control device arranged in the umbrella handle. The purpose of automatic opening and closing of the umbrella and automatic folding of the umbrella ribs can be achieved by pressing the control button on the umbrella handle. However, after folding the umbrella surface, the user still needs to compress the pipes of the unfolded middle rod to be locked before the umbrella can be completely closed, and the fully automatic opening and closing of the umbrella is not achieved. The existing automatic opening and closing multi-folding umbrella also needs to install an umbrella closing safety device including a safety pull rope, a winding wheel, a ratchet, a spring, a ratchet clamp and other parts in the middle rod and the umbrella handle. This makes the structure of the automatic opening and closing umbrella quite complicated, with many parts, and it is also difficult to assemble, which increases the cost of the umbrella. Utility Model Content

[0003] The purpose of the utility model is to provide an automatic opening and closing umbrella transmission structure to solve the defects mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, an automatic opening and closing umbrella transmission structure is provided, comprising: a handle, a middle rod, an upper nest, a lower nest, an umbrella rib, a motor, a fixed pulley, a pull rope and a transmission structure, wherein the handle is connected to the bottom end of the middle rod, the top end of the middle rod is fixed with the upper nest, the middle rod is movably provided with the lower nest, the umbrella rib is hinged on the upper nest and the lower nest, the upper nest is fixed with the fixed pulley, the lower nest is fixed with one end of the pull rope, and the other end of the pull rope is fixed to the motor through the fixed pulley, characterized in that: the middle rod is composed of a sliding sleeve of pipe fittings with increasing diameters from top to bottom, comprising: a first pipe fitting, a second pipe fitting and a third pipe fitting, the first pipe fitting is fixed to the handle, the second pipe fitting is sleeved on the first pipe fitting, the third pipe fitting is sleeved on the second pipe fitting, and the top of the third pipe fitting is fixed with the upper nest;

[0005] The transmission structure includes: a first gear, a first gear belt, a second gear, a second gear belt, a first rack and a second rack. A first fixing member is arranged on the top of the first pipe. The first gear is fixed on the first fixing member. The first gear belt is meshed with the first gear and the motor. A second fixing member is arranged on the top of the second pipe. The second gear is fixed on the second fixing member. The second gear belt is meshed with the second gear and the first gear. One end of the first rack is meshed with the first gear. The other end of the first rack is connected to the second fixing member. One end of the second rack is meshed with the second gear. The other end of the second gear is connected to the upper nest.

[0006] Furthermore, the first gear is a double gear, and the second gear is a triple gear.

[0007] Furthermore, the first gear and the second gear are not coaxially arranged.

[0008] Furthermore, a battery pack, a cable and a switch assembly are also provided in the handle, and the switch assembly is connected to the battery and the motor via a cable.

[0009] Furthermore, the switch assembly includes an umbrella opening button and an umbrella closing button, the umbrella opening button controls the motor to rotate forward, and the umbrella closing button controls the motor to rotate reversely.

[0010] Furthermore, the battery is a rechargeable battery pack.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: gears, gear belts and racks are arranged in each pipe fitting, and a motor is used to control the rotation of the gears, so that the gears can rotate synchronously, thereby completing the process of opening and closing the umbrella. In addition, the first pipe fitting drives the second pipe fitting to move, and the second pipe fitting drives the movement of the third pipe fitting, thereby realizing the fully automatic opening and closing of the umbrella, and the overall structure is simple, and a transmission structure is used to provide power for the middle rod to move up and down, thereby reducing the tension of the pull cord and increasing the service life of the pull cord. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model.

[0013] Numbers in the figure: 1. handle; 2. middle rod; 21. first pipe fitting; 22. second pipe fitting; 23. third pipe fitting; 3. upper nest; 4. lower nest; 5. ribs; 6. motor; 7. fixed pulley; 8. pull rope; 9. transmission structure; 91. first gear; 92. first gear belt; 93. first fixing member; 94. second gear; 95. second gear belt; 96. first rack; 97. second fixing member; 98. second rack; 10. umbrella opening button; 11. umbrella closing button; 12. cable; 13. battery. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] See also Figure 1 The utility model provides an automatic opening and closing umbrella transmission structure, comprising: a handle 1, a middle rod 2, an upper nest 3, a lower nest 4, an umbrella rib 5, a motor 6, a fixed pulley 7, a pull rope 8 and a transmission structure 9, wherein the handle 1 is connected to the bottom end of the middle rod 2, a battery 13 group, a cable 12 and a switch assembly are arranged in the handle 1, the switch assembly is connected to the battery 13 and the motor 6 through the cable 12, the switch assembly comprises an umbrella opening button 10 and an umbrella closing button 11, the umbrella opening button 10 controls the motor 6 to rotate forward, and the umbrella closing button 11 controls the motor 6 to rotate reversely, and the battery 13 is a rechargeable battery pack, which increases the practicability.

[0016] The top of the middle rod 2 is fixed with the upper nest 3, the lower nest 4 is movably arranged on the middle rod 2, the ribs 5 are hinged on the upper nest 3 and the lower nest 4, the fixed pulley 7 is fixed in the upper nest 3, the lower nest 4 is fixed with one end of the pull rope 8, and the other end of the pull rope 8 is fixed to the motor 6 through the fixed pulley 7, the middle rod 2 is composed of a sliding sleeve of pipes with increasing diameters from top to bottom, including: a first pipe 21, a second pipe 22 and a third pipe 23, the first pipe 21 is fixed to the On the handle 1, the second tube 22 is sleeved on the first tube 21, and the third tube 23 is sleeved on the second tube 22. The top of the third tube 23 is fixed to the upper nest 3. When the motor 6 rotates forward, the pull rope 8 is gradually released, and the transmission structure 9 moves upward, driving the second tube 22 and the third tube 23 to move outward, thereby opening the umbrella. When the motor 6 rotates reversely, the pull rope 8 is tightened by the motor 6, and the transmission structure 9 moves downward, driving the second tube 22 and the third tube 23 to retract, thereby closing the umbrella.

[0017] The transmission structure 9 includes: a first gear 91, a first gear belt 92, a second gear 94, a second gear belt 95, a first rack 96 and a second rack 98. A first fixing member 93 is provided on the top of the first pipe 21. The first gear 91 is fixed on the first fixing member 93. The first gear belt 92 is meshed with the first gear 91 and the motor 6. A second fixing member 97 is provided on the top of the second pipe 22. The second gear 94 is fixed on the second fixing member 97. The second gear belt 95 is meshed with the second gear 94 and the first gear 91. One end of the first rack 96 is meshed with the first gear 91. The other end of the first rack 96 is connected to the second fixing member 97. One end of the second rack 98 is meshed with the second gear 94. The other end of the second gear 94 is connected to the upper nest 3. When the motor 6 rotates forward, the first gear belt 92 is driven to rotate, and the first rack 96 meshed with the first gear belt 92 The first gear 91 is a double gear, and the second gear 94 is a triple gear, which is arranged non-coaxially to prevent the first gear 91 and the second gear 94 from influencing each other, resulting in the gear belt and the rack having no space to move.

[0018] Furthermore, the transmission structure 9 can also be applied to the middle rod 2 with more sleeve sections, and it only needs to add fixing parts, gear belts, gears and racks in the middle rod 2. The principle is simple and easy to operate.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic opening and closing umbrella transmission structure, comprising: A handle (1), a middle rod (2), an upper nest (3), a lower nest (4), an umbrella rib (5), a motor (6), a fixed pulley (7), a pull rope (8) and a transmission structure (9), wherein the handle (1) is connected to the bottom end of the middle rod (2), the top end of the middle rod (2) is fixed to the upper nest (3), the lower nest (4) is movably arranged on the middle rod (2), the umbrella rib (5) is hinged on the upper nest (3) and the lower nest (4), the fixed pulley (7) is fixed inside the upper nest (3), one end of the pull rope (8) is fixed to the lower nest (4), and the pull rope The other end of the middle rod (8) is fixed to the motor (6) through a fixed pulley (7), and is characterized in that: the middle rod (2) is composed of pipe fittings with increasing diameters from top to bottom, including: a first pipe fitting (21), a second pipe fitting (22) and a third pipe fitting (23), the first pipe fitting (21) is fixed to the handle (1), the second pipe fitting (22) is sleeved on the first pipe fitting (21), the third pipe fitting (23) is sleeved on the second pipe fitting (22), and the top of the third pipe fitting (23) is fixed to the upper nest (3); The transmission structure (9) comprises: a first gear (91), a first gear belt (92), a second gear (94), a second gear belt (95), a first rack (96) and a second rack (98); a first fixing member (93) is arranged on the top of the first pipe member (21); the first gear (91) is fixed on the first fixing member (93); the first gear belt (92) is meshed with the first gear (91) and the motor (6); a second fixing member (97) is arranged on the top of the second pipe member (22); the second gear (94) is fixed on the second fixing member (97); the second gear belt (95) is meshed with the second gear (94) and the first gear (91); one end of the first rack (96) is meshed with the first gear (91); the other end of the first rack (96) is connected to the second fixing member (97); one end of the second rack (98) is meshed with the second gear (94); and the other end of the second gear (94) is connected to the upper nest (3).

2. The automatic opening and closing umbrella transmission structure according to claim 1, characterized in that: The first gear (91) is a double gear, and the second gear (94) is a triple gear.

3. The automatic opening and closing umbrella transmission structure according to claim 2, characterized in that: The first gear (91) and the second gear (94) are non-coaxially arranged.

4. The automatic opening and closing umbrella transmission structure according to claim 1, characterized in that: A battery (13), a cable (12) and a switch assembly are also provided in the handle (1), and the switch assembly is connected to the battery (13) and the motor (6) via the cable (12).

5. The automatic opening and closing umbrella transmission structure according to claim 4, characterized in that: The switch assembly comprises an umbrella opening button (10) and an umbrella closing button (11); the umbrella opening button (10) controls the motor (6) to rotate forward, and the umbrella closing button (11) controls the motor (6) to rotate reversely.

6. The automatic opening and closing umbrella transmission structure according to claim 4, characterized in that: The battery (13) is a rechargeable battery pack.

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