CN111955862B

CN111955862B - Stable telescopic umbrella pole

Info

Publication number: CN111955862B
Application number: CN201910418172.3A
Authority: CN
Inventors: 龚大舒
Original assignee: Hangzhou Paradise Umbrella Group Co ltd
Current assignee: Hangzhou Paradise Umbrella Group Co ltd
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2024-06-21
Anticipated expiration: 2039-05-20
Also published as: CN111955862A

Abstract

The invention discloses a stable telescopic umbrella rod, which comprises an inner rod, a middle rod and an outer rod which are sequentially sleeved, wherein the adjacent umbrella rods are telescopic and positioned through steel-sheet elastic balls, and a limiting device for preventing the umbrella rods from being pulled out is further arranged at the connecting end of the adjacent umbrella rods. Six limiting parts are formed at the adjacent boundaries of the six surfaces of the umbrella rod, so that the movement gap of the umbrella rod during torsion is greatly reduced, and the torsion-resistant effect can be effectively achieved. Meanwhile, the convex ribs can reduce the local gap between the adjacent umbrella rods, and prevent the umbrella rods from shaking.

Description

Stable telescopic umbrella pole

Technical Field

The invention relates to a part of an umbrella, in particular to a telescopic umbrella rod of a telescopic umbrella, and in particular relates to a stable telescopic umbrella rod.

Background

The existing telescopic umbrella rods comprise a plurality of sections of umbrella rods which are sleeved in sequence, each umbrella rod is provided with a guide surface, and steel-sheet marbles are used for limiting between adjacent umbrella rods. A notch is formed on the guide surface, and the rest of the umbrella pole is in a circular arc structure. And after the umbrella pole is stretched and positioned, as the marble is in clearance fit with the marble hole on the umbrella pole, the umbrella pole can twist, so that shaking is generated, uneven stress is caused, and the use is affected.

For this purpose, the applicant proposes a technical solution of an anti-rotation telescopic umbrella stick and obtains the chinese patent rights (patent number 2016203016241). Referring to fig. 1 to 9, the technical scheme includes an inner rod 1', a middle rod 3', an outer rod 5 'and an outer rod 8' which are sequentially sleeved. The guide surface of each rod faces to the right. The inner rod 1 'and the middle rod 3' form a guide through the matching of a concave 14 'at the upper part of the inner rod 1' and a concave 13 'at the lower part of the middle rod 3'; the middle rod 3 'and the outer rod 5' form a guide through the matching of a notch 12 'at the upper part of the middle rod 3' and a notch 11 'at the lower part of the outer rod 5'; the outer rod 5' and the outer rod 8' are engaged with each other on the guide surface by means of the key 6 '.

Referring to fig. 10, limiting planes 16', 17', 18', 19' are respectively arranged on two sides of each umbrella stick, which are 90 degrees away from the guide surface. The two adjacent rods are limited by steel-sheet marbles 2', 4', 7' on the limiting plane.

The limiting planes 16', 17', 18', 19' on the inner rod 1', the middle rod 3', the outer rod 5 'and the outer rod 8' are matched relatively, and when any rod rotates, the end parts of the limiting planes of the inner rod 1', the middle rod 3', the outer rod 5 'and the outer rod 8' touch the limiting surfaces of the adjacent rods, so that the aim of preventing the umbrella rod from rotating is fulfilled.

However, the above-mentioned technical problems cannot be fundamentally solved because the adjacent umbrella rods are in clearance fit, and the anti-torsion limiting points are only at the four ends of the limiting surface.

Another disadvantage of this structure of the umbrella stick is that: because the umbrella rods are in gap connection, the umbrella rods are easy to shake, and particularly the shake of the connection part between the adjacent umbrella rods is more obvious. The shaking not only affects the hand feeling, but also causes deformation and even fracture easily when the end part of the umbrella rod is impacted for a long time, thereby shortening the service life of the product.

Disclosure of Invention

The invention aims to solve the technical problems in the prior art and aims to provide an improved torsion-resistant telescopic umbrella rod of a folding umbrella.

In order to solve the problems, the invention adopts the following technical scheme: the utility model provides a stable scalable umbrella pole, including the interior pole of suit in proper order, well pole and outer pole, scalable between the adjacent umbrella pole, and through steel sheet marble location, the link of adjacent umbrella pole still is equipped with the stop device who prevents that the umbrella pole from pulling out, its characterized in that each umbrella pole has six faces respectively, including the front that links to each other in proper order, first antitorque plane, the antitorque plane of second, the back relative with the front, third antitorque plane and fourth antitorque plane, adjacent umbrella pole is through setting up in the axial concave surface cooperation direction in front or the back, and be close to a section of concave surface's in its outside umbrella pole a pair of protruding muscle on the umbrella pole both sides groove limit has the higher groove limit.

According to the stable telescopic umbrella rod, as each umbrella rod is provided with six surfaces respectively, six limiting parts are formed at the adjacent boundaries of the six surfaces, so that the movement gap when the umbrella rod is twisted is greatly reduced, and the torsion resistance effect can be effectively achieved. Meanwhile, due to the fact that the adjacent umbrella rods are matched through the inner concave surfaces, the umbrella rods can form minimum movement gaps when twisted in the forward and reverse directions.

The invention is characterized in that a pair of convex ribs are arranged on the groove edges on two sides of the inner concave surface, and the pair of convex ribs can reduce the local gap between adjacent umbrella rods and prevent the umbrella rods from shaking. Meanwhile, the two side groove edges of the inner concave surface are provided with convex ribs, the convex ribs are axially arranged, the shaking of the umbrella rod in the front-back direction and the left-right direction can be effectively restrained, and the stability of the umbrella rod is improved.

As an improvement of the invention, the junctions of the adjacent surfaces of the umbrella rods are positioned on the circumference of the same reference circle, so that each surface on the umbrella rods is uniformly stressed, and the strength is maximum when the cross sections are the same, thereby improving the overall strength of the umbrella rods.

As a further improvement of the invention, the opening angles of the six surfaces of each umbrella rod to the center of the reference circle are the same.

As a still further improvement of the invention, the main body part of the front surface of the outer rod is an arc surface, one end connected with the middle rod is provided with an inner concave surface, and the intersection of the arc surface and the inner concave surface forms a limiting surface with the middle rod; the back of the outer rod is an arc surface.

As a still further improvement of the invention, the main body part of the front surface of the middle rod is an inner concave surface, one end connected with the outer rod is provided with an arc surface, and a limiting surface connected with the outer rod is formed at the intersection of the arc surface and the inner concave surface; the main body part of the back of the middle rod is an arc surface, one end connected with the inner rod is provided with an inner concave surface, and a limiting surface connected with the inner rod is formed at the intersection of the arc surface of the back and the inner concave surface.

As a still further improvement of the invention, the front surface of the inner rod is a through inner concave surface; the main body part of the back of the inner rod is an inner concave surface, one end connected with the middle rod is provided with an arc surface, and a limiting surface connected with the middle rod is formed at the intersection of the arc surface of the back and the inner concave surface.

As a still further improvement of the present invention, the axial length of the bead is 1.5-2.5 cm.

Preferably, the axial length of the convex rib is 1.8-2.2 cm.

More preferably, the axial length of the ribs is 2 cm.

As a further improvement of the invention, the outer rod is also sleeved with an outer rod, and the outer rod is provided with six surfaces, including a front surface, a first torsion resistant plane, a second torsion resistant plane, a back surface opposite to the guide surface, a third torsion resistant plane and a fourth torsion resistant plane which are sequentially connected; the front surface of the outer rod is an arc surface, the middle main body part of the arc surface is provided with an axial convex groove, one end of the middle of the arc surface, which is connected with the outer rod, is provided with an inner concave surface, a limiting surface which is connected with the outer rod is formed at the intersection of the convex groove and the inner concave surface, and the outer rod are guided and limited through key matching; the back of the outer rod is an arc surface.

Drawings

The invention is further described below with reference to the drawings and examples.

Fig. 1 is a schematic structural view of a conventional outer rod.

Figure 2a cross-sectional view of figure 1 along A-A.

Fig. 3 is a schematic structural view of a conventional outer rod.

Fig. 4 is a cross-sectional view of fig. 3 along B-B.

Fig. 5 is a schematic structural view of a conventional center pole.

Fig. 6 is a cross-sectional view of fig. 5 along C-C.

Fig. 7 is a schematic structural view of a conventional inner rod.

Fig. 8 is a cross-sectional view of fig. 7 taken along D-D.

Fig. 9 is a schematic view of a conventional folding bar.

Fig. 10 is a bottom enlarged view of fig. 9.

Fig. 11 is a schematic structural view of the outer rod of the present invention.

FIG. 12 is a cross-sectional view taken along line F-F of FIG. 11.

Fig. 13 is a cross-sectional view of fig. 11 taken along G-G.

Fig. 14 is a schematic view of the structure of the lever in the present invention.

Fig. 15 is an enlarged top view of fig. 14.

Fig. 16 is an enlarged cross-sectional view taken along H-H of fig. 14.

Fig. 17 is an enlarged cross-sectional view of fig. 14 taken along line I-I.

Fig. 18 is a schematic view of the structure of the inner rod of the present invention.

Fig. 19 is an enlarged top view of fig. 18.

Fig. 20 is an enlarged cross-sectional view of fig. 18 taken along the line J-J.

FIG. 21 is a schematic view of the torsion resistant telescopic umbrella pole of the present invention.

Fig. 22 is a bottom enlarged view of fig. 21.

Fig. 23 is a schematic structural view of the outer rod of the present invention.

Fig. 24 is an enlarged cross-sectional view of fig. 23 taken along line K-K.

Fig. 25 is a schematic structural view of the outer rod and the outer rod connecting portion of the present invention.

FIG. 26 is a schematic view of the structure of the four-section telescopic umbrella pole of the present invention.

In the figure, a 1-outer rod, a 2-middle rod, a 3-inner rod, a 4-outer rod, a 5-steel shell ball and a 6-key;

101-the front surface of an outer rod, 102-the back surface of the outer rod, 103-the first torsion preventing surface of the outer rod, 104-the second torsion preventing surface of the outer rod, 105-the third torsion preventing surface of the outer rod, 106-the fourth torsion preventing surface of the outer rod, 107-the inner concave surface of the front lower end of the outer rod, 108-the limit surface of the lower end of the outer rod and 109-a key slot;

201-front surface of the middle rod, 202-back surface of the middle rod, 203-first torsion preventing surface of the middle rod, 204-second torsion preventing surface of the middle rod, 205-third torsion preventing surface of the middle rod, 206-fourth torsion preventing surface of the middle rod, 207-main body part concave surface of the front surface of the middle rod, 208-limit surface of the upper end of the middle rod, 209-limit surface of the lower end of the middle rod, 210-lower end concave surface of the front surface of the middle rod, 211-upper end part arc surface of the front surface of the middle rod, 212-convex rib and 213-main body part arc surface of the back surface of the middle rod;

301-front face of the inner rod, 302-back face of the inner rod, 303-first torsion preventing face of the inner rod, 304-second torsion preventing face of the inner rod, 305-third torsion preventing face of the inner rod, 306-fourth torsion preventing face of the inner rod, 307-upper end arc face of the back face of the inner rod, 308-main body part inner concave face of the back face of the inner rod, 309-upper end limiting face and 311-convex rib.

401-Front of the outer rod, 402-back of the outer rod, 403-first torsion preventing plane of the outer rod, 404-second torsion preventing plane of the outer rod, 405-third torsion preventing plane of the outer rod, 406-fourth torsion preventing plane of the outer rod, 407-front middle main body part convex groove of the outer rod, 408-lower end inner concave surface of front middle part of the outer rod, 410-limit surface of the outer rod.

Detailed Description

Fig. 1 to 10 are schematic structural views of a conventional telescopic umbrella stick, and the drawbacks thereof have been described above and will not be described herein.

It should be noted that, in the following description of the present invention, directions or positions indicated by "upper", "lower", "left", "right", "top", "bottom", etc. are directions or positional relationships based on the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Fig. 11 to 22 are specific embodiments of a stable telescopic umbrella rod applied to three sections of rods, comprising an inner rod 1, a middle rod 2 and an outer rod 3 which are sequentially sleeved, wherein adjacent umbrella rods are telescopic and positioned by steel-sheet marbles, the connecting ends of the adjacent umbrella rods are also provided with limiting devices for preventing the umbrella rods from being pulled out, each umbrella rod is respectively provided with six surfaces, each umbrella rod comprises a front surface, a first torsion-resistant plane, a second torsion-resistant plane, a back surface opposite to the front surface, a third torsion-resistant plane and a fourth torsion-resistant plane, which are sequentially connected, and the front surfaces of the umbrella rods are positioned on the same side and are matched through inner concave surfaces.

Referring to fig. 11 to 13, the outer rod 1 has six faces including a front face 101, a first torsion plane 103, a second torsion plane 104, a rear face 102 opposite to the front face, a third torsion plane 105 and a fourth torsion plane 106, which are connected in sequence.

The main body part of the front surface 101 of the outer rod 1 is an arc surface 109, the lower end connected with the middle rod 2 is provided with an inner concave surface 107, and a limiting surface 108 connected with the middle rod 2 is formed at the intersection of the arc surface 109 and the inner concave surface 107. The back surface 102 of the outer rod is an arc surface.

Meanwhile, the junctions of the adjacent surfaces of the six surfaces of the outer rod 1 are positioned on the circumference of the same reference circle, and the opening angles S from the six surfaces of the umbrella rod to the center of the reference circle are the same.

Referring to fig. 14 to 17, the middle lever 2 has six faces including a front face 201, a first torsion plane 203, a second torsion plane 204, a rear face 202 opposite to the front face, a third torsion plane 205, and a fourth torsion plane 206, which are connected in order.

The front face 201 of the middle rod is a guide surface connecting the outer rod 1 and the inner rod 3 at the same time. The main body part of the device is an inner concave surface 207, the upper end connected with the outer rod 1 is provided with an arc surface 211, and a limiting surface 208 connected with the outer rod 1 is formed at the intersection of the arc surface 211 and the inner concave surface 207; the groove edges on both sides of the section of concave surface 207 adjacent to the limiting surface 208 are provided with a pair of ribs 212 which are higher than the groove edges. The axial length of the ribs 212 is 2 cm.

The main body part of the back surface 202 of the middle rod is an arc surface 213, the lower end connected with the inner rod 3 is provided with an inner concave surface 210, and a limiting surface 209 connected with the inner rod 1 is formed at the intersection of the arc surface 213 of the back surface and the inner concave surface 210.

Referring to fig. 18 to 20, the front surface 301 of the inner rod 3 is a through concave surface; the main body part of the back surface 302 of the inner rod 3 is an inner concave surface 308, the upper end connected with the middle rod 2 is provided with an arc surface 307, and a limiting surface 309 connected with the middle rod 2 is formed at the intersection of the arc surface 307 of the back surface and the inner concave surface 308. The two sides of the groove edge of the section of concave surface 308 close to the limit surface 308 are provided with a pair of convex ribs 311 which are higher than the groove edge. The axial length of the ribs 311 is 2 cm.

Referring to fig. 21 and 22, the inner pole 1, the middle pole 2 and the outer pole 3 are sequentially sleeved, and the front faces of the umbrella poles are positioned on the same side, and are matched through the inner concave surfaces on the umbrella poles.

Meanwhile, the two side groove edges of the inner concave surface of the umbrella rod are provided with a pair of convex ribs, and the pair of convex ribs can reduce the local gap between the adjacent umbrella rods and prevent the umbrella rods from shaking. As the convex ribs are arranged on the two side groove edges of the inner concave surface and are axially arranged, the shaking of the umbrella rod in the front-back direction and the left-right direction can be effectively restrained.

And, because the juncture of the adjacent faces of each umbrella pole is located on the circumference of the same reference circle, each face on the umbrella pole is uniformly stressed, and the intensity is the largest when the cross sections are the same, thereby improving the integral intensity of the umbrella pole.

The above embodiment is a telescopic rod of a three-rod structure. On the basis, the outer rod 1 is sleeved with the outer rod 4, so that a four-section rod can be manufactured.

Referring to fig. 23 and 24, the outer rod 4 has six faces including a front face 401, a first torsion plane 403, a second torsion plane 404, a rear face 402 opposite the front face, a third torsion plane 405, and a fourth torsion plane 406, which are sequentially connected. The front surface 401 of the outer rod is an arc surface, the middle main body part of the arc surface is provided with an axial convex groove 409, the lower end of the middle of the arc surface, which is connected with the outer rod, is provided with an inner concave surface 408, and the intersection of the convex groove 409 and the inner concave surface 408 forms a limiting surface 410 with the outer rod 1; the back 402 of the outer rod is an arc surface.

Referring to fig. 25, the outer rod 4 and the outer rod 1 are guided and limited by the key 6 in a matched manner. More specifically, the key 6 is a T-shaped key or a pi-shaped key, the front surface of the outer rod 1 is provided with a key groove 110, and when the foot of the key 6 is placed in the key groove 110, the upper part of the key 6 is placed in the outer rod 4 and the convex groove 409. The outer pole 1 together with the key 6 can move up and down in the groove 409, which causes the pole to flex. Since the intersection of the convex groove 409 and the concave surface 408 has the limit surface 410, the key 6 is blocked after being moved down to the limit surface 410, and thus the outer rod 1 is not pulled out.

The ribs can be arranged on any one inner umbrella rod of a group of adjacent telescopic rods.

In particular, when the telescopic umbrella pole is a three-section pole, the convex rib can be arranged on the middle pole and/or the inner pole. The upper end of the outer rod in the three sections of rods is directly connected with the upper disc, so that no convex rib is required to be arranged.

When the telescopic umbrella rod is a four-section rod, the convex rib can be arranged on at least one of the outer rod, the middle rod and the inner rod. The upper end of the outer rod in the four sections of rods is directly connected with the upper disc, so that no convex rib is required.

It should be understood that: the above embodiments are merely illustrative of the present invention, not limiting, and any invention that does not fall within the spirit and scope of the present invention falls within the scope of the present invention.

Claims

1. The stable telescopic umbrella rod comprises an inner rod, a middle rod and an outer rod which are sequentially sleeved, wherein adjacent umbrella rods are telescopic and positioned through steel-sheet marbles, and a limiting device for preventing the umbrella rods from being pulled out is further arranged at the connecting end of each adjacent umbrella rod; the adjacent umbrella rods are guided in a matched manner through an axial inner concave surface arranged on the front surface or the back surface, and a pair of convex ribs higher than the groove edges are arranged on the groove edges of two sides of the inner concave surface of the umbrella rod close to the outer umbrella rod; the junction of adjacent surfaces of each umbrella rod is positioned on the circumference of the same reference circle; the opening angles from six surfaces of each umbrella rod to the center of the reference circle are the same; the front surface of the outer rod is provided with an arc surface, one end connected with the middle rod is provided with an inner concave surface, a limiting surface connected with the middle rod is formed at the intersection of the arc surface and the inner concave surface, and the back surface of the outer rod is provided with an arc surface; the front surface of the middle rod is provided with an inner concave surface, one end connected with the outer rod is provided with an arc surface, a limiting surface connected with the outer rod is formed at the intersection of the arc surface on the front surface of the middle rod and the inner concave surface, the back surface of the middle rod is provided with an arc surface, one end connected with the inner rod is provided with an inner concave surface, and a limiting surface connected with the inner rod is formed at the intersection of the arc surface on the back surface of the middle rod and the inner concave surface; the front surface of the inner rod is a through inner concave surface, the main body part of the back surface of the inner rod is an inner concave surface, one end connected with the middle rod is provided with an arc surface, and a limiting surface connected with the middle rod is formed at the intersection of the arc surface of the back surface of the inner rod and the inner concave surface.

2. A stable telescopic umbrella pole as claimed in claim 1, wherein said ribs have an axial length of 1.5 cm to 2.5 cm.

3. A stable telescopic umbrella pole as claimed in claim 2, wherein said ribs have an axial length of 1.8 cm to 2.2 cm.

4. A stable telescopic umbrella pole as claimed in claim 3, wherein said ribs have an axial length of 2 cm.

5. A stable telescopic umbrella shaft according to any one of claims 1 to 4, wherein said outer shaft is further provided with an outer shaft, said outer shaft having six faces including a front face, a first torsion plane, a second torsion plane, a back face opposite to the front face, a third torsion plane and a fourth torsion plane, connected in sequence; the front surface of the outer rod is an arc surface, an axial convex groove is formed in the middle main body part of the arc surface of the front surface of the outer rod, an inner concave surface is formed at one end, connected with the outer rod, of the middle of the arc surface of the front surface of the outer rod, a limiting surface of the outer rod is formed at the intersection of the convex groove and the inner concave surface, and the outer rod are guided and limited through key matching; the back of the outer rod is an arc surface.