CN111955862A

CN111955862A - Stable telescopic umbrella rod

Info

Publication number: CN111955862A
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: 2020-11-20
Anticipated expiration: 2039-05-20
Also published as: CN111955862B

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 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 arranged at the connecting end of the adjacent umbrella rods. The six limiting parts are formed at the adjacent boundaries of the six surfaces of the umbrella rod, so that the moving gap of the umbrella rod during twisting is greatly reduced, and the anti-twisting function can be effectively realized. Meanwhile, the convex ribs can reduce the local gap between adjacent umbrella poles and prevent the umbrella poles from shaking.

Description

Stable telescopic umbrella rod

Technical Field

The invention relates to a component of a sun-rain umbrella, in particular to a telescopic umbrella rod of a folding umbrella, and particularly 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 marble passing between the adjacent umbrella rods is limited. Notches are formed in the guide surfaces and the remainder of the shaft remains in the configuration of a circular arc. And, after the umbrella pole is tensile fixed a position, because also be clearance fit between marble and the marble hole on the umbrella pole, can produce between the umbrella pole and twist reverse to produce and rock, cause the atress inhomogeneous, influence the use.

Therefore, the applicant proposes a technical scheme of an anti-rotation folding umbrella rod and obtains 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 sleeved in sequence. The guide surface of each rod faces to the right. The guide is formed between the inner rod 1 'and the middle rod 3' by the matching of the concave 14 'at the upper part of the inner rod 1' and the concave 13 'at the lower part of the middle rod 3'; the middle rod 3 'and the outer rod 5' form a guide by matching a notch 12 'at the upper part of the middle rod 3' with 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 a key 6 '.

Referring to fig. 10, two side surfaces of each umbrella rod, which are at 90 degrees to the guide surface, are respectively provided with limit planes 16 ', 17', 18 'and 19'. The adjacent two rods are limited on the limit planes thereof through steel sheet marble 2 ', 4 ' and 7 '.

The limiting planes 16 ', 17', 18 'and 19' on the inner rod 1 ', the middle rod 3', the outer rod 5 'and the outer rod 8' are matched oppositely, and when any rod rotates, the end part of the limiting plane can contact the limiting surface of the adjacent rod, thereby achieving the purpose of preventing the umbrella rod from rotating.

Then, although the telescopic umbrella rod with the structure solves the twisting prevention problem of the umbrella rod to a certain extent, the adjacent umbrella rods are in clearance fit, and the twisting prevention limit points only exist at four ends of the limit surface, so the technical problem cannot be solved fundamentally.

Another drawback of this umbrella stem is that: because the umbrella poles are in clearance connection, the umbrella poles are easy to shake, and particularly the shaking at the connection part between the adjacent umbrella poles is more obvious. The shaking not only influences the hand feeling, but also easily deforms and even breaks when the end part of the umbrella rod is impacted for a long time, thereby shortening the service life of the umbrella.

Disclosure of Invention

The invention aims to solve the technical problems in the prior art and provides an improved anti-torsion 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, king-rod and outer pole, it is scalable between the adjacent umbrella pole, and fix a position through the steel sheet marble, the link of adjacent umbrella pole still is equipped with the stop device who prevents the umbrella pole and extract, each umbrella pole of its characterized in that has six faces respectively, including consecutive front, first antitorque plane, the antitorque plane of second, the back relative with the front, antitorque plane of third and fourth, adjacent umbrella pole is through setting up the axial internal concave surface cooperation direction at front or the back, and the both sides slot edge that is close to one section internal concave surface of its outside umbrella pole on the umbrella pole has a pair of protruding muscle that exceeds the slot edge.

According to the stable telescopic umbrella rod, each umbrella rod is provided with six surfaces, and six limiting parts are formed at the adjacent boundaries of the six surfaces, so that the moving gap of the umbrella rod during twisting is greatly reduced, and the anti-twisting effect can be effectively achieved. Meanwhile, because the adjacent umbrella rods are matched through the concave surfaces, the minimum moving gap can be formed when the umbrella rods are twisted in the forward and reverse directions.

The invention is also characterized in that a pair of convex ribs are arranged on the groove edges at the two sides of the inner concave surface, and the pair of convex ribs can reduce the local gap between the adjacent umbrella poles and prevent the umbrella poles from shaking. Simultaneously, the both sides trough edge of interior concave surface all has protruding muscle, and protruding muscle be the axial setting, the rocking of back and forth and left and right sides of umbrella pole can both obtain effectual suppression, has improved the stability of umbrella pole.

As an improvement of the invention, the junction of the adjacent surfaces of the umbrella rods is 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 surface is the same cross section, thereby improving the overall strength of the umbrella rods.

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

As a 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 limit surface with the middle rod; the back of the outer rod is a circular arc surface.

As a 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 the intersection of the arc surface and the inner concave surface forms a limiting surface with the outer rod; the main body part of the back of the middle rod is an arc surface, an inner concave surface is arranged at one end connected with the inner rod, and a limiting surface which is connected with the inner rod is formed at the intersection of the arc surface of the back and the inner concave surface.

As a 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 the intersection of the arc surface of the back and the inner concave surface forms a limiting surface with the middle rod.

As a further improvement of the invention, the axial length of the convex rib 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 rib is 2 cm.

As a further improvement of the invention, the outer rod is further sleeved with an outer rod, and the outer rod is provided with six surfaces, wherein the six surfaces comprise 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, the middle of the arc surface is provided with an inner concave surface at one end connected with the outer rod, the intersection of the convex groove and the inner concave surface forms a limiting surface with the outer rod, and the outer rod are guided and limited in a key fit mode; the back surface of the outer rod is a circular arc surface.

Drawings

The invention is further illustrated by the following figures and examples.

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

FIG. 2 is a cross-sectional view taken along A-A of FIG. 1.

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

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

Fig. 5 is a schematic structural view of a conventional king pin.

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

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

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

Fig. 9 is a schematic structural view of a conventional collapsible rod.

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

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

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

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

FIG. 14 is a schematic view of the construction of the lever of 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 taken along I-I of fig. 14.

Fig. 18 is a schematic structural view 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 taken along J-J of fig. 18.

Fig. 21 is a schematic view showing the construction of the anti-twist telescopic umbrella shaft of the present invention.

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

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

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

Fig. 25 is a schematic view showing the construction of the outer rod and the outer rod connecting portion according to the present invention.

Fig. 26 is a schematic structural view of a four-section telescopic umbrella rod of the invention.

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

101-the front surface of the outer rod, 102-the back surface of the outer rod, 103-the first anti-twisting surface of the outer rod, 104-the second anti-twisting surface of the outer rod, 105-the third anti-twisting surface of the outer rod, 106-the fourth anti-twisting surface of the outer rod, 107-the inner concave surface at the lower end of the front surface of the outer rod, 108-the limiting surface at the lower end of the outer rod, 109-the key groove;

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

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

401-the front face of the outer rod, 402-the back face of the outer rod, 403-the first anti-twisting plane of the outer rod, 404-the second anti-twisting plane of the outer rod, 405-the third anti-twisting plane of the outer rod, 406-the fourth anti-twisting plane of the outer rod, 407-the main body part convex groove in the middle of the front face of the outer rod, 408-the lower end concave surface in the middle of the front face of the outer rod, and 410-the limiting surface on the outer rod and the outer rod.

Detailed Description

Fig. 1 to 10 are schematic structural views of a conventional retractable umbrella shaft, which have the defects described above and are not described again.

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

Fig. 11 to 22 show a specific embodiment of applying a stable telescopic umbrella stick to a three-section stick according to the present invention, which includes an inner stick 1, a middle stick 2 and an outer stick 3, which are sequentially sleeved, adjacent umbrella sticks are telescopic and positioned by steel ball, the connecting end of the adjacent umbrella sticks is further provided with a limiting device for preventing the umbrella sticks from being pulled out, each umbrella stick has six faces, and includes a front face, a first torsion-resistant plane, a second torsion-resistant plane, a back face opposite to the front face, a third torsion-resistant plane and a fourth torsion-resistant plane, which are sequentially connected, and the front faces of the umbrella sticks are located on the same side and are matched with each other by an inner concave face.

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 front surface 101 of the outer rod 1 is provided with an arc surface 109 in the main body part, 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 102 of the outer rod is a circular arc.

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 king-rod 2 has six faces including a front face 201, a first torsion resistant plane 203, a second torsion resistant plane 204, a rear face 202 opposite to the front face, a third torsion resistant plane 205 and a fourth torsion resistant plane 206, which are connected in sequence.

The front surface 201 of the middle rod is a guide surface for simultaneously connecting the outer rod 1 and the inner rod 3. The main body part of the rod 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 at both sides of a section of the inner concave surface 207 near the limiting surface 208 are provided with a pair of convex ribs 212 higher than the groove edges. The ribs 212 have an axial length of 2 cm.

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

Referring to fig. 18 to 20, the front surface 301 of the inner rod 3 is a through concave surface; the back 302 of the inner rod 3 has a main body part with an inner concave surface 308, the upper end connected with the middle rod 2 is provided with an arc surface 307, and the intersection of the arc surface 307 of the back and the inner concave surface 308 forms a limit surface 309 connected with the middle rod 2. The groove edges at both sides of a section of the inner concave surface 308 close to the limiting surface 308 are provided with a pair of convex ribs 311 higher than the groove edges. The axial length of the rib 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 surfaces of the respective poles are positioned at the same side and are engaged with each other through the inner concave surfaces thereof.

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

Moreover, because the junction of the adjacent surfaces of the umbrella rods is positioned on the circumference of the same reference circle, each surface on the umbrella rods is uniformly stressed, and the strength is the maximum when the surfaces are on the same cross section, thereby improving the overall strength of the umbrella rods.

The above embodiment is a telescopic rod of a three-joint rod structure. On the basis, the outer rod 1 is sleeved with the outer rod 4, and 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 connected in series. 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 middle of the arc surface and the lower end connected with the outer rod are provided with an inner concave surface 408, and a limiting surface 410 connected with the outer rod 1 is formed at the intersection of the convex groove 409 and the inner concave surface 408; the back 402 of the outer rod is a circular arc.

Referring to fig. 25, the outer rod 4 is guided and limited by the cooperation of the key 6 with the outer rod 1. More specifically, the key 6 is a "T" type key or a "Π" type key, a key slot 110 is formed on the front surface of the outer rod 1, when the foot of the key 6 is placed in the key slot 110, the upper portion of the key 6 is placed in the outer rod 4 and the convex groove 409. The outer pole 1 and the key 6 can move up and down in the convex groove 409 to make the umbrella pole stretch. Because the intersection of the convex groove 409 and the concave surface 408 is provided with the limiting surface 410, the key 6 is stopped after moving down to the limiting surface 410, and the outer rod 1 cannot be pulled out.

The convex rib can be arranged on any inner side umbrella rod of a group of adjacent telescopic rods.

Specifically, when the telescopic umbrella rod is a three-section rod, the convex rib can be arranged on the middle rod and/or the inner rod. The upper end of the outer rod in the three-section rod is directly connected with the upper disk, so that no convex rib is needed.

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-section rod is directly connected with the upper disk, so that a convex rib is not required to be arranged.

It should be understood that: the above-mentioned embodiments are merely illustrative of the present invention, not restrictive, and any invention which does not depart from the spirit and scope of the present invention will fall within the protection scope of the present invention.

Claims

1. A 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 the adjacent umbrella rods; the adjacent umbrella rods are guided in a matching way through axial inner concave surfaces 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 on the two sides of one section of the inner concave surface of the umbrella rod on the outer side of the umbrella rod.

2. A stable telescopic umbrella as claimed in claim 1, wherein the junctions of adjacent faces of each umbrella pole lie on the circumference of the same reference circle.

3. A stable telescopic umbrella stick as claimed in claim 2, wherein the six faces of each stick have the same opening angle to the center of the reference circle.

4. A stable telescopic umbrella rod as claimed in claim 1, wherein the front surface of the outer rod has a main part in the form of a circular arc surface, and the end connected to the middle rod has an inner concave surface, and the intersection of the circular arc surface and the inner concave surface forms a limit surface with the middle rod; the back of the outer rod is a circular arc surface.

5. A stable telescopic umbrella rod as claimed in claim 1, wherein the main part of the front surface of the middle rod is an inner concave surface, one end connected to the outer rod has an arc surface, and the intersection of the arc surface and the inner concave surface forms a limit surface with the outer rod; the main body part of the back of the middle rod is an arc surface, an inner concave surface is arranged at one end connected with the inner rod, and a limiting surface which is connected with the inner rod is formed at the intersection of the arc surface of the back and the inner concave surface.

6. The stable telescopic umbrella pole of claim 1, wherein the front face of the inner pole is a through concave face; 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 the intersection of the arc surface of the back and the inner concave surface forms a limiting surface with the middle rod.

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

8. A stable telescopic umbrella stick as claimed in claim 7, wherein said ribs have an axial length of 1.8 to 2.2 cm.

9. A stable telescopic umbrella pole as claimed in claim 8, wherein said ribs have an axial length of 2 cm.

10. A stable telescopic umbrella stick as claimed in any one of claims 1 to 9, wherein said outer stick is further provided with an outer stick, said outer stick having six faces including a front face, a first torsion resistant face, a second torsion resistant face, a rear face opposite to the front face, a third torsion resistant face and a fourth torsion resistant face connected in series; 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, the middle of the arc surface is provided with an inner concave surface at one end connected with the outer rod, the intersection of the convex groove and the inner concave surface forms a limiting surface with the outer rod, and the outer rod are guided and limited in a key fit mode; the back surface of the outer rod is a circular arc surface.