CN211354142U - Well stick structure and umbrella - Google Patents

Abstract

The utility model discloses a well stick structure and umbrella, this well stick structure include that an inner tube and cover locate the outside outer tube of inner tube, and inner tube one end is provided with the fastening strip, is provided with elastic fastener in the outer tube, fastening strip orientation elastic fastener extends, elastic fastener have one with fastening strip interference fit's hole, but fastening strip interference connects in the hole. Under the state of closing the umbrella, fastening strip and elastic fastener interference fit to increase frictional force, make each section body can fix together safe and reliable, because elastic fastener has elasticity, avoided the wearing and tearing between spare part to lead to the problem of structural failure. In the use process, the user can control the depth of the fastening strip inserted into the elastic fastening piece, so that the interference magnitude is controlled, and the umbrella can be opened conveniently with moderate force. Because the opening and closing of the umbrella are realized only through the matching between the fastening strips and the elastic fasteners, the design of the handle and the shape of the lower nest of the umbrella is not limited, and the attractiveness and the portability of the umbrella are improved.

Description

Well stick structure and umbrella

Technical Field

The utility model belongs to the technical field of the parachute kit, specifically speaking relates to a well stick structure and have umbrella of this well stick structure.

Background

The umbrella is an indispensable daily necessity in people's daily life, and among numerous umbrellas, the folding umbrella is popular with consumers because of having characteristics of small volume and easy folding and unfolding. Among the prior art, for the taking in of convenient folding umbrella, each section body of stick is in the same place the lock when the umbrella state is received to messenger's folding umbrella, adopts following two kinds of structures usually: the first type of umbrella is shown in fig. 1, in which a marble or a slingshot is arranged on the inner tube of the umbrella, a lock bead hole is arranged at a corresponding position on the outer tube, when the umbrella is folded, the inner tubes are overlapped, and the marble or the slingshot of the inner tube jumps into the lock bead hole of the outer tube body, so that the inner tube and the outer tube are buckled together. The second type of middle rod structure is shown in figure 2, a groove is arranged at the bottom of the lower nest of the umbrella, a buckle hook is arranged on the inner wall of the umbrella handle or an outer tooth fixing part connected with the middle rod, when the umbrella is folded, all the pipe sections inside are overlapped, the lower nest is folded inside the umbrella handle, the buckle hook on the inner wall of the umbrella handle or the outer tooth connected inside buckles the lower nest, and therefore all the pipe sections are fixedly accommodated and fixed together.

However, the existing methods have some disadvantages: the marble or the slingshot in the first structure is limited by the size of the inner pipe, the buckling size is small, the buckling force is weak, and the marble or the slingshot is generally not firm enough. In addition, each section of outer pipe is additionally provided with a lock bead hole, so that the labor cost is increased, and the integrity and the strength of the middle rod are damaged. In the second structure, after the cramp on the inner wall of the handle or the outer teeth is used for multiple times, abrasion failure or even breakage is easy to occur; secondly, the handle must surround the outer teeth and the lower nest, so that the appearance design of the handle and the lower nest is limited and cannot be changed freely.

In addition, the scheme on the existing market is the instant tripping state, and according to the momentum principle (MV ═ FT), under the dynamic condition, because of the instant tripping action time is short, so the action force is relatively large, in addition, the parachute kit on the market is limited by the traditional structure, the static tripping force is not enough (if do the static tripping force big, can lead to the tripping difficulty, influence normal parachute opening), very easy tripping, lead to the stick to drop in the umbrella, seriously influence the use experience.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model discloses it is above-mentioned technical problem that will solve to it leads to structural failure to provide the wearing and tearing of each body connection firm, avoid because of spare part, to stick structure and the umbrella that has this stick structure in that the parachute kit appearance design restraint is little.

In order to solve the technical problem, the utility model adopts the technical scheme that:

an aspect of the utility model provides a well stick structure, well stick structure one end is connected in the last nest of umbrella, the other end is connected in the umbrella stick, well stick structure includes that an at least inner tube and cover are located the outside outer tube of inner tube, inner tube one end is provided with the fastening strip, be provided with elastic fastener in the outer tube, the fastening strip orientation elastic fastener extends, elastic fastener have one with fastening strip interference fit's hole, but fastening strip interference connect in the hole.

Preferably, at least one inner plug is further arranged between the fastening strip and the outer pipe, the inner plug is provided with a through hole for the fastening strip to pass through, and the inner plug is arranged in the middle pipe between the outer pipe and the inner pipe.

Preferably, the end of the fastening strip adjacent to the elastic fastener is a contracted end.

Preferably, the cross-sectional profile of the constricted end is trapezoidal.

Preferably, the ends of the inner bore and the through-hole are provided with chamfered portions for guiding the fastening strip.

Preferably, the elastic fastener is silicone or rubber.

Another aspect of the present invention provides an umbrella, which comprises the above-mentioned middle rod structure.

Compared with the prior art, the technical scheme of the utility model have following advantage:

(1) well stick structure, its one end is connected in last nest, the other end of umbrella and is connected in the umbrella stick, locate including an at least inner tube and cover the outside outer tube of inner tube, inner tube one end is provided with the fastening strip, be provided with elastic fastener in the outer tube, the fastening strip orientation elastic fastener extends, elastic fastener have one with fastening strip interference fit's hole, but fastening strip interference connect in the hole. The fastening strip that well stick structure is fixed in the inner tube and the cooperation that sets up between the elastic fastener of outer tube have realized convenient switch umbrella operation, and under the umbrella state of receiving, fastening strip and elastic fastener interference fit to increase frictional force, but make each section body safe and reliable fixed together, because elastic fastener has elasticity, avoided wearing and tearing between spare part to lead to the problem of structural failure in addition. In the use process, the user can control the depth of the fastening strip inserted into the elastic fastening piece, so that the interference magnitude is controlled, and the umbrella can be opened conveniently with moderate force. Because the opening and closing of the umbrella are realized only through the matching between the fastening strips and the elastic fasteners, the design of the handle and the shape of the lower nest of the umbrella is not limited, the handle and the shape of the lower nest can be designed according to requirements, and the attractiveness and the portability of the umbrella are improved.

(2) Elastic fastener be the elasticity plug, and locking fixed knot constructs length long, so buffering effect is good, stability strengthens greatly, is difficult for deviating from.

(3) Well stick structure, the fastening strip is close to elastic fastener's one end is the shrink end, the shrink end makes in the elastic fastener that inserts that the fastening strip can be smooth.

(4) Well stick structure, the hole with the tip of through-hole is provided with and is used for the direction the chamfer portion of fastening strip. The end part of the inner hole or the through hole is provided with an outward expansion part, so that the fastening strip can be smoothly inserted into the elastic fastening piece, and the problem that the umbrella is difficult to be folded due to overlarge resistance is solved.

Drawings

In order to make the content of the invention more clearly understood, the invention will now be described in further detail with reference to specific embodiments thereof, in conjunction with the accompanying drawings, in which

FIG. 1 is a schematic illustration of a prior art mid-rod configuration;

FIG. 2 is a schematic illustration of another prior art rod configuration;

fig. 3 is an exploded view of the middle rod structure according to embodiment 1 of the present invention;

fig. 4 is a schematic cross-sectional view illustrating an exploded state of a middle rod structure according to embodiment 1 of the present invention;

fig. 5 is a schematic sectional view of the combined state of the middle rod structure according to embodiment 1 of the present invention.

The reference numbers in the figures denote: 1-inner tube; 101-a fastening strip; 2-an elastic fastener; 201-inner hole; 3-inner plug; 301-through holes.

Detailed Description

Example 1

The embodiment provides a middle rod structure, the middle rod structure is used for a folding umbrella with more than two folds, the top of the middle rod structure is connected to an upper nest of the umbrella, and the bottom of the middle rod structure is connected to an umbrella handle, so as to form a complete folding umbrella frame, in the embodiment, as shown in fig. 3-5, the middle rod structure comprises an inner tube 1, at least one middle tube and an outer tube, the middle tube and the outer tube are sleeved outside the inner tube, the inner tube can slide relative to the middle tube and the outer tube, the inner tube 1 is a hollow tube, a fastening strip 101 is fixedly arranged at one end of the inner tube 1, an elastic fastener 2 is arranged inside one end of the outer tube close to the upper nest, the fastening strip 101 extends towards the elastic fastener 2, the elastic fastener 2 is provided with an inner hole 201 capable of being in interference fit with the fastening strip 101, and the sectional area of the main body of the inner hole 201, when fastening strip 101 inserts when in the hole 201, fastening strip 101 through with the interference fit of hole 201, elastic fastener 2 produces pressure to fastening strip 101 to make fastening strip 101 and hole 201 firm connection, the frictional force between elastic fastener 2 and the fastening strip 101 plays the effect of fixed inner tube and outer tube, the fixed firm degree of size direct influence inner tube and outer tube of interference magnitude, the user can control the degree of depth that fastening strip 101 inserted elastic fastener 2 according to own custom, thereby control the interference magnitude, and then conveniently open and shut the umbrella with moderate dynamics, elastic fastener 2's material can adopt rubber or silica gel that has certain elasticity, of course, also can adopt other elastically deformable's material.

Further, well pipe is close to elastic fastener 2's one end is provided with one interior stopper 3, interior stopper 3 has the confession the through-hole that fastening strip 101 passes through, under the state of receiving the umbrella, the coincidence is accomodate to the inner tube of well stick, well pipe and each section of outward appearance, fastening strip 101 runs through-hole 301, the tip of all well pipe interior stoppers 2 and inserts hole 201, through-hole 301 with fastening strip 101 adaptation is connected, fastening strip 101 with hole 201 interference fit makes elastic fastener 2 pins fastening strip 101, can be in the same place each body is firm fixed from this.

Furthermore, in order to enable the fastening strip 201 to smoothly enter the inner hole 201 and the through hole 301, one end of the fastening strip 101 close to the inner hole 201 is a constricted end, specifically, the cross-sectional shape of the constricted end is a trapezoid with a narrow top (the end far away from the inner tube) and a wide bottom (the end close to the inner tube), and of course, the constricted end may also adopt other inwardly constricted shapes, such as a truncated cone shape or a cone shape. In addition, in order to match the insertion of the fastening strip 201, one end of the inner hole 201 and the through hole 301, which is close to the inner tube, is provided with a chamfered part (as shown in the figure) towards the periphery of the inner hole 201 and the through hole 301, so that the inner hole 201 and the through hole 301 are outwards expanded to play a guiding role, and the fastening strip 101 is easier to enter the inner hole 201 and the through hole 301.

When the umbrella needs to be opened, the fastening strip 101 is stressed by a force towards the handle, when the fastening strip 101 moves to a certain position, the fastening strip 101 is separated from the extrusion of the elastic fastening piece 2, and the inner tube, the middle tube and the outer tube can easily slide relatively to extend the middle rod, so that the umbrella is opened.

According to the momentum theorem, the resultant force increment and the momentum in the process of opening and closing the umbrella satisfy the following relation: the impulse of the resultant force applied to the object is equal to the momentum change of the object, namely Ft is equal to delta vm, after the umbrella is folded, the mass is unchanged in the dynamic swing process, and if the speed variable is constant, the longer the force action time of F is, the smaller F is. Because the elastic fastening piece 2 is of an elastic structure and has a buffering effect, and meanwhile, the length of the action length of the fastening strip 101 inserted into the elastic fastening piece 2 can be controlled, the action time is prolonged, the action time is conveniently adjusted, and the F force is reduced in a multiplied manner. When the force F is smaller than the friction force, the umbrella can not fall off. Therefore, the stability of the umbrella with the middle rod structure is obviously improved compared with the conventional umbrella, and the technical problems of small static buckling force, easy falling off under dynamic state, large static buckling force and difficult umbrella opening of the conventional umbrella are solved.

The utility model provides a well stick structure, the user can be according to oneself hobby, through the degree of depth of control fastening strip 101 insertion elastic fastener 2, control magnitude of interference to control hanging power (hanging power is frictional force) size, thereby make things convenient for the parachute-opening of oneself.

Example 2

This embodiment provides an umbrella, the umbrella includes the excellent structure in embodiment 1, this umbrella structure is stable, easily opens and shuts, has greatly made things convenient for the user to use.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (7)

1. The utility model provides a well stick structure, well stick structure one end is connected in last nest, the other end of umbrella and is connected in the umbrella stick, well stick structure includes that an at least inner tube and cover are located the outside outer tube of inner tube, its characterized in that, inner tube one end is provided with the fastening strip, be provided with elastic fastener in the outer tube, the fastening strip orientation elastic fastener extends, elastic fastener have one with fastening strip interference fit's hole, but fastening strip interference fit connect in the hole.

2. The middle rod structure according to claim 1, wherein at least one inner plug is further disposed between the fastening strip and the outer tube, the inner plug has a through hole for the fastening strip to pass through, and the inner plug is disposed in the middle tube between the outer tube and the inner tube.

3. A king-rod construction according to claim 2, wherein the end of the fastening strip adjacent the elastic fastener is a constricted end.

4. A king-rod construction according to claim 3, wherein the cross-sectional profile of the constricted end is trapezoidal.

5. A centre rod structure according to claim 3 or 4, wherein the ends of the bore and the through-hole are provided with chamfered portions for guiding the fastening strips.

6. A king-rod structure according to claim 5, wherein the elastic fastener is silicone or rubber.

7. An umbrella comprising a mid-stick structure as claimed in any one of claims 1 to 6.

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