CN218588401U

CN218588401U - Pusher structure of electric umbrella

Info

Publication number: CN218588401U
Application number: CN202223121658.7U
Authority: CN
Inventors: 宋治明
Original assignee: Xiamen Mingho Brothers Mfg Co ltd
Current assignee: Xiamen Mingho Brothers Mfg Co ltd
Priority date: 2022-10-18
Filing date: 2022-11-23
Publication date: 2023-03-10
Anticipated expiration: 2032-11-23

Abstract

The utility model discloses impeller structure of electronic umbrella for promote the driving medium, it includes lead screw, screw-nut, sliding sleeve and soft matter piece. The screw rod is driven by a power source to rotate; the screw rod nut is screwed on the screw rod and moves upwards or downwards along with the positive and negative rotation of the screw rod, and a circumferential surface of the screw rod nut is provided with a circumferential groove; the sliding sleeve is provided with a hollow inner cavity and is sleeved with the screw rod nut in a sliding manner, and the peripheral surface of the sliding sleeve is provided with a circumferential through groove which is communicated with the hollow inner cavity of the sliding sleeve; the sliding sleeve is connected with the transmission part; the soft blocks are embedded with the circumferential through grooves and the circumferential grooves. Through the utility model discloses, no matter lead screw corotation is still the reversal, its drive power will all be removed by screw-nut through soft piece transmission back drive sliding sleeve to all realize the buffering when the sliding sleeve goes upward or is down, so, reduced the impact, simultaneously, its power supply (motor) start for the flexonics in the twinkling of an eye starting, and the electricity consumption is little, and is difficult for taking place jamming and stifled commentaries on classics.

Description

Pusher structure of electric umbrella

Technical Field

The utility model relates to an electric umbrella technical field, concretely relates to impeller structure of electric umbrella.

Background

As the technology of electric umbrellas is becoming mature, electric umbrellas are becoming popular. It generally comprises a handle, a middle bar, an upper nest, a lower nest, a transmission member and a pusher. The upper nest and the lower groove are connected with umbrella ribs, the pusher generally comprises a lead screw, a lead screw nut and a power source, the lead screw and the lead screw nut are positioned in the middle rod, the lead screw nut is connected with a transmission part, and the power source is arranged in the handle.

Because the screw rod nut is driven by the power source, when the screw rod nut moves to the limit position, inertia exists, if the nut falls to the handle, the nut is influenced by inertia force, the nut can impact the handle to cause noise and vibration, and meanwhile, the nut can impact the power source output shaft and the transmission to easily influence the service life of the power source and the transmission.

Therefore, in the prior patent of full-automatic umbrella pusher protection structure of the applicant, the granted publication number CN204048410U, a soft mass is arranged at the lower end of the screw rod and above the power source, so that when the screw rod nut descends to the lower end of the screw rod, the screw rod nut contacts the soft mass to realize buffering. But the proposal still has the improvement that only the impact caused when the nut descends to the handle is considered, the impact generated at the moment when the nut ascends is not considered, and meanwhile, the power source (motor) is in hard connection starting at the starting moment, so that higher current impact exists, the power is consumed, and the rotation is blocked due to clamping stagnation caused by lack of buffering.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an impeller structure of electronic umbrella to solve feed screw nut and go upward or go downward in the twinkling of an eye, or the impact that produces when being close the umbrella stick.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

pusher structure of electric umbrella for promote the driving medium, include:

the screw rod is driven by a power source to rotate;

the screw rod nut is screwed on the screw rod and rotates forwards and backwards along with the screw rod to go upwards or downwards, and a circumferential surface of the screw rod nut is provided with a circumferential groove;

the sliding sleeve is provided with a hollow inner cavity and is sleeved with the screw rod nut in a sliding manner, and a circumferential through groove which penetrates through the hollow inner cavity of the sliding sleeve is formed in the circumferential surface of the sliding sleeve; the sliding sleeve is connected with the transmission part;

and the soft block is embedded with the circumferential through groove and the circumferential groove.

In an alternative embodiment, the transmission member is a pull cord.

In an alternative embodiment, the sliding sleeve is provided with a threading hole parallel to the axial direction for threading and connecting the pulling rope.

In an alternative embodiment, the soft block has an interference portion protruding from the surface of the circumferential through groove to compensate for a gap between the middle rod and the sliding sleeve.

In an optional embodiment, the screw nut and the sliding sleeve are hexagonal or irregular.

In an alternative embodiment, at least one rubber damper pin is inserted into the lower end face edge of the feed screw nut.

In an alternative embodiment, the soft mass is a rubber pad.

In an optional implementation manner, an anti-rotation pin is formed on the cavity wall of the sliding sleeve, and an anti-rotation groove corresponding to the anti-rotation pin is formed on the lead screw nut.

After the technical scheme is adopted, compared with the background art, the utility model, have following advantage:

the utility model discloses a sliding sleeve slides and cup joints screw-nut, then through soft piece gomphosis in the groove is led to circumference and circumference recess to linkage sliding sleeve and screw-nut, so, no matter lead screw corotation still reversal, its drive power all will be moved by screw-nut through soft piece transmission back drive sliding sleeve, thereby all realize the buffering when the sliding sleeve goes upward or down, so, the impact has been reduced, and simultaneously, its power supply (motor) starts for the flexonics in the twinkling of an eye in the start-up, and the electric consumption is little, and difficult emergence jamming and stalling.

Drawings

FIG. 1 is a schematic view of an electric umbrella pusher according to the present invention;

FIG. 2 is a schematic view of the assembly of a feed screw nut, a sliding sleeve and a soft block;

FIG. 3 is a schematic view of a screw nut, a sliding sleeve and a soft block;

fig. 4 is another disassembly schematic view of the screw nut, the sliding sleeve and the soft block.

Description of reference numerals:

a screw 100; the screw rod nut 200, the circumferential groove 210, the rubber shock absorption pin 220 and the anti-rotation groove 230; a sliding sleeve 300, a circumferential through groove 310, a rope threading hole 320 and an anti-rotation pin 330; soft mass 400, rope passing hole 410; an umbrella handle 500.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. In addition, it should be noted that:

the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that a device or element of the invention must have a specific orientation and therefore should not be construed as limiting the invention.

When an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the interconnection of two elements or through the interaction of two elements. The specific meaning of the above terms in the utility model can be understood according to specific situations by those of ordinary skill in the art.

Examples

Referring to fig. 1, the present invention discloses a pusher structure of an electric umbrella for pushing a driving member, which includes a screw 100, a screw nut 200, a sliding sleeve 300, a soft block 400 and a power source.

Wherein, the power source and the power source (not shown in the figure) are arranged in the umbrella handle 500, and the power shaft of the power source is driven to rotate positively and negatively through the positive and negative rotation switch on the umbrella handle 500. The lead screw 100 is driven by a power source to rotate, and the lead screw nut 200 is screwed on the lead screw 100, so that when the lead screw 100 rotates, the lead screw nut 200 rotates forwards and backwards along with the lead screw 100 to move upwards or downwards. The connection structure of the power source, the lead screw 100 and the lead screw nut 200 belongs to the conventional structure of the electric umbrella, and is not described herein.

For realizing no matter the purpose that the buffering can both be realized in the corotation of lead screw 100 still reversal, the utility model discloses a flexible connection structure realizes, adds sliding sleeve 300 and soft matter piece 400 promptly, transmits sliding motion for sliding sleeve 300 through soft matter piece 400, connects the driving medium through sliding sleeve 300, realizes the change of driving medium stroke.

Specifically, the sliding sleeve 300 has a hollow inner cavity to sleeve the lead screw nut 200 and allow the lead screw nut 200 to move in the sliding sleeve 300. The circumferential surface of the lead screw nut 200 is provided with a circumferential groove 210, and then the circumferential surface of the sliding sleeve 300 is provided with a circumferential through groove 310 which penetrates through the hollow inner cavity of the sliding sleeve, and the circumferential through groove 310 is arranged relative to the circumferential groove 210. The shape of the soft mass 400 is adapted to the inner hole of the lead screw nut 200, the circumferential groove 210 of the lead screw nut 200 and the circumferential through groove 310 of the sliding sleeve 300, so that the soft mass 400 is inserted in the radial direction to be embedded with the circumferential through groove 310 and the circumferential groove 210. Simultaneously, be different from traditional structure, the utility model discloses a driving medium is connected to sliding sleeve 300.

Thus, through the soft block 400, the circumferential through groove 310 and the circumferential groove 210, a certain buffer is obtained between the sliding sleeve 300 and the screw-nut 200 in the direction of the screw 100, so that the large impact of the traditional structure (the screw 100 drives the screw-nut 200, and the screw-nut 200 directly connects the transmission member) is avoided, especially, the transmission member is a steel wire push rod and the like, and when the screw-nut is close to the umbrella handle, the buffer effect can also be obtained. Meanwhile, the power source (motor) is started by flexible connection at the starting moment, so that the motor has certain rotation buffering at the starting moment, the requirement on the starting torque of the motor is low, the electricity consumption is low, and the motor is not easy to generate clamping stagnation and locked rotor.

In this embodiment, soft block 400 is a rubber block.

In this embodiment, the transmission member is a pulling rope, and therefore, referring to fig. 3 and 4, the sliding sleeve 300 is provided with a rope passing hole 320 parallel to the axial direction, and the soft block 400 is provided with a rope passing hole 410, so that the pulling rope can be passed through the rope passing hole 320 to realize connection, thereby transmitting the sliding of the sliding sleeve 300 to the umbrella nest (e.g., the lower nest to drive the umbrella ribs to open and close the umbrella) through the pulling rope. It is easy to understand that if the transmission member is a steel wire push rod, the sliding sleeve 300 is provided with a corresponding locking hole to lock the steel wire push rod.

In this embodiment, the lead screw nut 200 and the sliding sleeve 300 are disposed in a hexagonal shape, so that they can be adapted to a hexagonal middle rod. Or the special shape is matched with the special-shaped middle rod.

Since the sliding stroke of the sliding sleeve 300 is long, the middle rod is difficult to maintain a corresponding fit tolerance with the sliding sleeve 300 at various positions, and there is a gap between the screw nut 200 and the screw 100 itself, in order to prevent the sliding sleeve 300 from shaking, generating shaking noise, etc., in this embodiment, the soft block 400 has a surplus portion (slightly protruding from the surface) protruding out of the surface of the circumferential through groove 310, so as to compensate for the gap between the middle rod and the sliding sleeve 300.

Consider that sliding sleeve 300 descends to umbrella stick 500 when, with the impact that umbrella stick 500 produced the biggest, the utility model discloses lower terminal surface edge at screw-nut 200 inserts and is equipped with at least one rubber damper pin 220, so, when sliding sleeve 300 descends to umbrella stick 500, except that soft mass 400 cushions, it can also be through rubber damper pin 220 further shock attenuation. In this embodiment, the rubber damper pins 220 are provided in a pair and are symmetrically arranged.

Although screw-nut 200 and sliding sleeve 300 have all adopted the hexagon design, and itself has the function of preventing changeing, nevertheless takes place to warp for the torque that avoids sliding sleeve 300 to receive screw-nut 200 for a long time, arouses the slip jamming of sliding sleeve 300 in the well stick, the utility model discloses the shaping has anti-rotating pin 330 on the chamber wall of sliding sleeve 300, is equipped with on screw-nut 200 to be corresponding to anti-rotating pin 330 prevents the rotation groove 230, through the cooperation of anti-rotating pin 330 with preventing rotation groove 230, realizes preventing changeing. In this embodiment, the anti-rotation pins 330 and the anti-rotation slots 230 are a pair and are symmetrically disposed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. Impeller structure of electronic umbrella for promote the driving medium, its characterized in that includes:

the screw rod is driven by a power source to rotate;

2. A pusher structure of an electric umbrella as claimed in claim 1, characterized in that: the transmission part is a pull rope.

3. A pusher structure of an electric umbrella as claimed in claim 2, characterized in that: the sliding sleeve is provided with a rope penetrating hole parallel to the axial direction so as to penetrate and connect the pull rope.

4. A pusher structure of an electric umbrella as claimed in claim 2, characterized in that: the soft mass is provided with an excess part protruding out of the surface of the circumferential through groove so as to compensate the clearance between the middle rod and the sliding sleeve.

5. A pusher structure of an electric umbrella as claimed in claim 1, characterized in that: the screw rod nut and the sliding sleeve are hexagonal or special-shaped.

6. A pusher structure of an electric umbrella as claimed in claim 1, characterized in that: at least one rubber damping pin is inserted into the edge of the lower end face of the feed screw nut.

7. A pusher structure of an electric umbrella as claimed in claim 1, characterized in that: the soft block is a rubber pad.

8. A pusher structure of an electric umbrella as claimed in claim 1, characterized in that: an anti-rotation pin is formed on the cavity wall of the sliding sleeve, and an anti-rotation groove corresponding to the anti-rotation pin is formed in the lead screw nut.