CN211021301U

CN211021301U - Middle rod of multi-fold umbrella

Info

Publication number: CN211021301U
Application number: CN201922214786.8U
Authority: CN
Inventors: 王金凤
Original assignee: Shenzhen Jinjia Metal Hardware Products Co ltd
Current assignee: Shenzhen Jinjia Metal Hardware Products Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-07-17
Anticipated expiration: 2029-12-11

Abstract

The utility model relates to a stick in multi-fold umbrella, it includes the inner tube, outer tube and an at least well pipe, the inner tube, well pipe and outer tube are coaxial cup joint in proper order, the equal first rivet piece of fixedly connected with in position that inner tube and well tub of outer wall are close to the outer tube, first rivet piece is close to the first rivet pole of the terminal surface fixedly connected with of well stick, first rivet pole inserts inner tube or well pipe, the equal fixedly connected with second rivet piece in position that outer tube and well tub of inner wall are close to the inner tube, the terminal surface that first rivet piece is close to the outer tube rivets the terminal surface butt that the piece is close to the inner tube with the second, well pipe or inner tube outer wall all are provided with at least one guide way that is on a parallel with its axis, the second is riveted the piece and is arranged in the guide way of adjacent well pipe or inner tube respectively and slides, the. Utilize first riveting rod to increase the joint strength of first riveting piece and inner tube or well pipe, make well stick first riveting piece difficult production when tensile break away from to the use of stick is more stable in the messenger.

Description

Middle rod of multi-fold umbrella

Technical Field

The utility model relates to an umbrella accessory especially relates to a stick in multifolding umbrella.

Background

The well stick of present umbrella cup joints in proper order by inner tube, well pipe and outer tube and forms usually, simultaneously in order to prevent well stick split, can be close to a butt piece of the end fixing of outer tube at inner tube and well pipe usually, and the lateral wall of outer tube and well pipe is close to the position indent of inner tube and is formed the recess simultaneously, thereby utilizes recess and butt piece butt to prevent that inner tube, well pipe and outer tube from breaking away from.

Because butt piece direct joint in the tip of inner tube and well pipe, butt piece can break away from and drop with being connected of inner tube or well pipe because of receiving the constantly impact of exerting of recess this moment after the umbrella is used for a long time, can take place to break away from between inner tube, well pipe and the outer tube this moment to influence the use of umbrella.

Therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, the utility model aims to provide a stick in multi-fold umbrella makes inner tube, well pipe and outer tube difficult production separation when the stick is tensile.

In order to achieve the above purpose, the utility model provides a following technical scheme: a multi-folding umbrella middle rod comprises an inner tube, an outer tube and at least one middle tube, wherein the inner tube, the middle tube and the outer tube are sequentially coaxially sleeved, the inner walls of the inner tube, the middle tube and the outer tube are respectively attached to the sleeved inner tube or the sleeved middle tube, the positions of the outer walls of the inner pipe and the middle pipe, which are close to the outer pipe, are both fixedly connected with first riveting sheets, the end surfaces of the first riveting sheets, which are close to the middle rod, are fixedly connected with first riveting rods, the first riveting rod is inserted into the inner pipe or the middle pipe, the positions of the inner walls of the outer pipe and the middle pipe, which are close to the inner pipe, are fixedly connected with second riveting sheets, the end surface of the first riveting sheet close to the outer pipe is abutted against the end surface of the second riveting sheet close to the inner pipe, the outer wall of the middle pipe or the inner pipe is provided with at least one guide groove parallel to the axis of the middle pipe or the inner pipe, the second riveting sheets are respectively arranged in the guide grooves of the adjacent middle pipes or the inner pipes to slide, and the first riveting sheet and the second riveting sheet which are connected with the inner pipes or the middle pipes are not positioned on the same side wall.

Through adopting above-mentioned technical scheme, utilize first riveting piece and second to rivet the piece and prescribe a limit to the position between inner tube, well pipe and the outer tube, first riveting piece is connected with the first pole of riveting of inserting inner tube or well pipe simultaneously, and first riveting piece is difficult for producing this moment and breaks away from to the use of stick is difficult for receiving the influence in making.

The utility model discloses further set up to: the end face, far away from the axis of the middle rod, of each second riveting piece is fixedly connected with at least two second riveting rods, and the second riveting rods penetrate through the outer pipe or the outer wall of the inner pipe respectively.

Through adopting above-mentioned technical scheme, utilize two seconds to rivet the pole and increased the second and riveted the area of contact between piece and outer tube or the well pipe, thereby the joint strength who rivets the piece has been increased the second, it is difficult for dropping when receiving the impact that first riveting piece was applyed to make the second rivet the piece, stability when having increased well stick and using, the second is riveted the piece simultaneously and is connected with two and rivets the pole, thereby the length that the piece was riveted to the second has been increased, the depth that inner tube or well pipe inserted and cup jointed well pipe or outer tube outside it has been increased this moment, make inner tube or well pipe be difficult for taking place the bending, stability when further increasing well stick and using.

The utility model discloses further set up to: the one end that inner tube and well pipe are close to the outer tube all is connected with the stop gear who restricts its position, stop gear is including inserting the joint spare of arranging in inner tube or outer tube tip in the joint spare gliding spacing post and the elastic component that the spacing post of drive removed, the joint groove has been seted up to joint spare lateral wall, spacing post is arranged in the joint inslot and is slided, the elastic component is arranged in the direction removal of the spacing post of joint inslot drive towards keeping away from the well stick axis, well tub of outer wall is close to the position at its both ends and outer tube and inner tube outer wall and is close to the position of well pipe and has all seted up spacing hole, the spacing post is kept away from the one end of elastic component and is passed the spacing hole of adjacent pipe simultaneously, the one end diameter that the elastic component was kept away from to spacing post is less than the diameter that.

Through adopting above-mentioned technical scheme, utilize the position of stop gear inner tube, well pipe and outer tube to inject, make well stick can not produce the shrink when using, make the use of well stick remain stable.

The utility model discloses further set up to: the first riveting rod penetrates through the middle pipe or the inner pipe and is inserted into the clamping piece.

Through adopting above-mentioned technical scheme, utilize first riveting pole to inject the position of joint spare, make the joint spare be difficult for breaking away from with well pipe or inner tube to the use of stick is difficult for receiving the influence in making.

The utility model discloses further set up to: the inner tube is connected with a limiting column and a second riveting piece which is connected with a middle tube in a sleeved mode, and the limiting column of the middle tube is connected with the second riveting piece which is connected with a middle tube or an outer tube in the sleeved mode.

Through adopting above-mentioned technical scheme, utilize the second to rivet the axis direction removal of piece drive spacing post orientation well stick, the deformation of stick axis direction in can not leading to well pipe and outer tube production to keep away from this moment spacing post, and the user can not feel pricked the hand this moment, makes the use of umbrella not receive the influence.

The utility model discloses further set up to: the end face, perpendicular to the axis of the middle rod, of each second riveting piece is provided with a second chamfer, and one end, close to the axis of the middle rod, of each second chamfer of each second riveting piece is close to each other.

Through adopting above-mentioned technical scheme, utilize the second chamfer to increase the second and riveted the area of contact of piece and wedge to reduce the second and riveted the pressure between piece and the wedge, make the wedge be difficult for taking place to damage, thereby make the removal of spacing post be difficult for receiving the influence.

The utility model discloses further set up to: and the inner walls of the outer pipe or the middle pipe are coaxially provided with sleeves.

Through adopting above-mentioned technical scheme, utilize the sleeve pipe to reduce the frictional force between inner tube, well pipe and the outer tube to reduce the wearing and tearing of inner tube, well pipe and outer tube, make the use of well stick not easily influenced.

The utility model discloses further set up to: first chamfers are all seted up to two terminal surfaces of stick axis in the perpendicular to of first riveting piece, the one end that stick axis was kept away from in the first chamfer is close to each other.

Through adopting above-mentioned technical scheme, utilize first chamfer to make the edge of second riveting piece can not direct and the contact of cover pipe inner wall to make the difficult wearing and tearing that produce of cover pipe inner wall.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the first riveting rod connected with the first riveting piece is used for increasing the connection strength between the first riveting rod and the inner pipe and the middle pipe, and the second riveting rod connected with the second riveting piece is used for increasing the connection strength between the second riveting rod and the outer pipe and the middle pipe, so that the inner pipe, the middle pipe and the outer pipe are not easy to separate, and the stability of the middle rod during use is improved;

2. utilize the second to rivet the piece and exert the power towards well stick axis to spacing post, make the axis direction of stick in spacing post orientation remove, well pipe or outer tube are difficult for taking place to warp this moment, make well stick in the use user be difficult for feeling pricked the hand.

Drawings

FIG. 1 is a perspective view of the present embodiment;

FIG. 2 is a schematic view of the present embodiment showing a position-limiting mechanism;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic diagram for showing the end face structure of the middle rod in the present embodiment.

In the figure, 1, an inner tube; 11. a guide groove; 12. a limiting hole; 2. a middle tube; 21. a first connecting pipe; 22. a second connecting pipe; 23. a third connecting pipe; 3. an outer tube; 4. a first rivet sheet; 41. a first rivet bar; 42. a first chamfer; 5. a second rivet sheet; 51. a second rivet rod; 52. a second chamfer; 6. a limiting mechanism; 61. a clamping piece; 611. a clamping groove; 62. a limiting column; 621. connecting columns; 622. a wedge-shaped surface; 63. an elastic member; 7. a sleeve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, the middle stick for a multi-fold umbrella disclosed by the present invention comprises an inner tube 1, an outer tube 3 and a middle tube 2, the cross section of which is polygonal, the number of the sides of the cross section is greater than four, preferably regular octagon, the inner tube 1, the middle tube 2 and the outer tube 3 are all in a structure with two open ends, and they are coaxially sleeved in sequence, and the inner walls of the three are respectively attached to the middle tube 2 or the inner tube 1 sleeved with the inner tubes. As shown in fig. 2 and 3, when the middle rod is in a stretched state, the outer walls of the inner tube 1 and the middle tube 2 are connected to the outer wall of the outer tube 3 at positions close to the outer tube 4, the first rivet rod 41 is integrally formed on the end surface of the first rivet rod 4 close to the axis of the middle rod, and the first rivet rod 41 penetrates through the inner tube 1 or the middle tube 2. The position that 3 inner walls of outer tube and well 2 inner walls of well pipe are close to inner tube 1 all is connected with second riveting 5, and the terminal surface integrated into one piece that well stick axis was kept away from to second riveting 5 has two second riveting poles 51, and second riveting pole 51 passes outer tube 3 or the riveting of inner tube 1, and the terminal surface butt that the terminal surface that first riveting 4 is close to outer tube 3 and second riveting 5 are close to inner tube 1, and first riveting 4 and the second riveting 5 that same inner tube 1 or well 2 are connected are not in same lateral wall. The positions among the inner pipe 1, the middle pipe 2 and the outer pipe 3 are limited by the first riveting sheet 4 and the second riveting sheet 5, meanwhile, the first riveting sheet 4 is connected with a first riveting rod 41 inserted into the inner pipe 1 or the middle pipe 2, at the moment, the first riveting sheet 4 is not easy to separate, so that the use of the middle rod is not easy to be influenced, meanwhile, the contact area between the second riveting sheet 5 and the outer pipe 3 or the middle pipe 2 is increased by two second riveting rods 51, so that the connection strength of the second riveting sheet 5 is increased, the second riveting sheet 5 is not easy to fall off when being impacted by the first riveting sheet 4, the stability of the middle rod in use is increased, meanwhile, the second riveting sheet 5 is connected with two second riveting rods 51, so that the length of the second riveting sheet 5 is increased, at the moment, the depth of the inner pipe 1 or the middle pipe 2 inserted into the middle pipe 2 or the outer pipe 3 sleeved outside is increased, so that the inner pipe 1 or the middle pipe 2 is not easy to, further increasing the stability of the medium stick in use.

As shown in fig. 4, the middle tube 2 includes a first connecting tube 21, a second connecting tube 22 and a third connecting tube 23, the first connecting tube 21, the second connecting tube 22 and the third connecting tube 23 are sequentially sleeved, and the outer wall of the first connecting tube 21 is attached to the inner wall of the outer tube 3. At least one guide way 11 that is on a parallel with the axis of the well stick is all seted up to inner tube 1 and well 2 outer wall, and a guide way 11 has been seted up to first connecting pipe 21, and two guide ways 11 and the both sides that are located second connecting pipe 22 axis are seted up to second connecting pipe 22, and three guide ways 11 have been seted up to third connecting pipe 23, and it is ninety degrees to differ between three guide ways 11, and four guide ways 11 have been seted up to inner tube 1 outer wall, and it is ninety degrees to differ between the guide way 11. The second rivets the piece 5 and arranges in adjacent well pipe 2 or the guide way 11 of inner tube 1 respectively and slides, utilizes the second to rivet the cooperation between piece 5 and the guide way 11 and make difficult emergence rotation between outer tube 3, well pipe 2 and the inner tube 1, makes the use of umbrella not influenced.

As shown in fig. 2, in order to prevent the middle rod from contracting when being stressed, one ends of the inner tube 1 and the middle tube 2, which are close to the outer tube 3, are connected with a limiting mechanism 6 for limiting the movement of the inner tube 1 and the middle tube 2, and the limiting mechanism 6 comprises a clamping piece 61 inserted into the end of the inner tube 1 or the end of the outer tube, a limiting column 62 sliding in the clamping piece 61, and an elastic piece 63 driving the limiting column 62 to move. The side wall of the clamping piece 61 is provided with a clamping groove 611, and one end of the limiting column 62 is arranged in the clamping groove 611 to slide. The elastic member 63 is a spring, and is arranged in the clamping groove 611 to drive the limiting column 62 to move towards the direction away from the axis of the middle rod, one end of the elastic member 63 is abutted against the bottom surface of the clamping groove 611, and the other end of the elastic member 63 is abutted against the end surface of the limiting column 62 close to the axis of the middle rod. The outer wall of the middle pipe 2 is close to the positions of the two ends of the outer pipe and the outer wall of the outer pipe 3 and the outer wall of the inner pipe 1 are close to the position of the middle pipe 2, and a limiting hole 12 is formed in the outer wall of the middle pipe 2 and the outer wall of the inner pipe 1, and the limiting hole 12 is communicated with inner cavities of. The end of the limiting column 62 far away from the axis of the middle rod is coaxially and integrally formed with a connecting column 621, the diameter of the connecting column 621 is smaller than that of the limiting column 62, and the connecting column 621 penetrates through the limiting holes 12 of the adjacent tubes at the same time. The edge of the end surface of the connecting column 621 far away from the limiting column 62 is provided with a wedge surface 622, and one end of the wedge surface 622 far away from the axis of the connecting column 621 inclines towards the limiting column 62. The limiting column 62 and the second riveting sheet 5 connected with the outer tube 3, the first connecting tube 21 and the third connecting tube 23 are positioned on two sides of the axis of the middle rod, and the included angle formed by the limiting column 62 and the second riveting sheet 5 connected with the second connecting tube 22 and the axis of the middle rod is ninety degrees. The positions of the inner tube 1, the middle tube 2 and the outer tube 3 are limited by the limiting mechanism 6, so that the middle rod cannot shrink when in use, and the using process of the middle rod is kept stable.

As shown in fig. 3, in order to make the connection between the clamping member 61 and the middle pipe 2 or the inner pipe 1 more stable, the first riveting rod 41 penetrates through the middle pipe 2 or the inner pipe 1 and is inserted into the clamping member 61, the position of the clamping member 61 is limited by the first riveting rod 41, so that the clamping member 61 is not easily separated from the middle pipe 2 or the inner pipe 1, and the using process of the middle rod is not easily influenced.

As shown in fig. 1, since the wedge surface 622 directly abuts against the end surface of the middle tube 2 or the outer tube 3 when the middle rod is contracted, the middle tube 2 or the outer tube 3 is deformed away from the axis of the middle rod, which may cause the user to feel pricked. Therefore, the wedge-shaped surface 622 of the limiting column 62 connected to the inner pipe 1 abuts against the second rivet piece 5 connected to the middle pipe 2 sleeved on the inner pipe 1, and the wedge-shaped surface 622 of the limiting column 62 connected to the middle pipe 2 abuts against the second rivet piece 5 connected to the middle pipe 2 or the outer pipe 3 sleeved on the middle pipe 2. Utilize the second to rivet piece 5 drive spacing post 62 and remove towards the axis direction of well stick this moment, spacing post 62 can not lead to well pipe 2 and outer tube 3 to produce the deformation of keeping away from well stick axis direction this moment, and the user can not feel pricked the hand this moment, makes the use of umbrella not influenced.

As shown in fig. 3, when the second rivet piece 5 drives the position-limiting column 62 to move, the edge of the second rivet piece 5 directly abuts against the wedge-shaped surface 622, and at this time, the pressure between the two is high, so that the wedge-shaped surface 622 is easily damaged, and the movement of the position-limiting column 62 is affected. Therefore, the end surfaces of the second riveting sheets 5 perpendicular to the axis of the central rod are all provided with circular arc-shaped second chamfers 52, and one ends of the second chamfers 52 of the same second riveting sheets 5 close to the axis of the central rod are close to each other. The second chamfer 52 is used for increasing the contact area between the second rivet piece 5 and the wedge-shaped surface 622, so that the pressure between the second rivet piece 5 and the wedge-shaped surface 622 is reduced, the wedge-shaped surface 622 is not easy to damage, and the movement of the limit column 62 is not easy to be influenced.

As shown in fig. 3, in order to reduce friction between the inner tube 1, the middle tube 2 and the outer tube 3, the inner wall of the outer tube 3 or the middle tube 2 is coaxially riveted with a sleeve 7, the sleeve 7 is made of copper, and the inner wall of the sleeve is attached to the outer wall of the middle tube 2 or the inner tube 1. The friction force among the inner pipe 1, the middle pipe 2 and the outer pipe 3 is reduced by utilizing the sleeve 7, so that the abrasion of the inner pipe 1, the middle pipe 2 and the outer pipe 3 is reduced, and the using process of the middle rod is not easily influenced.

As shown in FIG. 3, since the first rivet sheet 4 will rub against the inner wall of the sleeve 7 when moving, the edge of the first rivet sheet 4 far away from the axis of the central rod and far away from the axis of the central rod will directly contact with the inner wall of the sleeve 7, so that the pressure between the two is high, and the inner wall of the sleeve 7 is easily abraded. Therefore, the two end faces of the first riveting sheet 4 perpendicular to the axis of the middle rod are provided with the first chamfer 42 in the shape of a circular arc, and one end of the first chamfer 42 of the same first riveting sheet 4, which is far away from the axis of the middle rod, is close to each other. The first chamfer 42 prevents the edge of the second rivet piece 5 from directly contacting the inner wall of the sleeve 7, so that the inner wall of the sleeve 7 is not easily abraded.

The implementation principle of the embodiment is as follows: when the well stick is tensile, utilize first riveting 4 and the restriction of second riveting 5 to make inner tube 1, well pipe 2 and outer tube 3 be difficult for producing and break away from, when the stick shrinks in needs, promote inner tube 1 towards well pipe 2, utilize the second riveting 5 to exert the power of perpendicular to wedge 622 towards well stick axis to spacing post 62, make spacing post 62 sink into in the joint groove 611, at this moment inner tube 1 inserts in well pipe 2, later make well pipe 2 remove to outer tube 3 in proper order in, accomplish the shrink of well stick.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A middle stick of a multi-fold umbrella is characterized in that: the riveting device comprises an inner pipe (1), an outer pipe (3) and at least one middle pipe (2), wherein the inner pipe (1), the middle pipe (2) and the outer pipe (3) are sequentially and coaxially sleeved, the inner walls of the inner pipe (1), the middle pipe (2) and the outer pipe (3) are respectively attached to the inner pipe (1) or the middle pipe (2) which is sleeved with the inner pipe (1), the positions, close to the outer pipe (3), of the outer walls of the inner pipe (1) and the middle pipe (2) are respectively and fixedly connected with a first riveting piece (4), the end face, close to a middle rod, of the first riveting piece (4) is fixedly connected with a first riveting rod (41), the first riveting rod (41) is inserted into the inner pipe (1) or the middle pipe (2), the positions, close to the inner pipe (1), of the outer pipe (3) and the inner wall of the middle pipe (2) are respectively and fixedly connected with a second riveting pieces (5), the end face, close to the outer wall of the outer pipe (4) and the, the second riveting piece (5) is respectively arranged in the guide groove (11) of the adjacent middle pipe (2) or the inner pipe (1) to slide, and the first riveting piece (4) and the second riveting piece (5) connected with the inner pipe (1) or the middle pipe (2) are not positioned on the same side wall.

2. The middle stick of a multifold umbrella as claimed in claim 1, wherein: the end face, far away from the axis of the middle rod, of the second riveting sheet (5) is fixedly connected with at least two second riveting rods (51), and the second riveting rods (51) penetrate through the outer wall of the outer pipe (3) or the outer wall of the inner pipe (1) respectively.

3. The middle stick of a multifold umbrella as claimed in claim 1, wherein: one end of the inner pipe (1) and one end of the middle pipe (2) close to the outer pipe (3) are both connected with a limiting mechanism (6) for limiting the positions of the inner pipe (1) and the middle pipe (2), the limiting mechanism (6) comprises a clamping piece (61) inserted into the end part of the inner pipe (1) or the outer pipe (3), a limiting column (62) sliding in the clamping piece (61) and an elastic piece (63) driving the limiting column (62) to move, a clamping groove (611) is formed in the side wall of the clamping piece (61), the limiting column (62) is arranged in the clamping groove (611) to slide, the elastic piece (63) is arranged in the clamping groove (611) to drive the limiting column (62) to move towards the direction far away from the axis of the middle rod, limiting holes (12) are formed in the positions of the outer wall of the middle pipe (2) close to the two ends of the middle pipe (3) and the outer wall of the inner pipe (1) close to the middle pipe (2), one, the diameter of one end, far away from the elastic piece (63), of the limiting column (62) is smaller than that of one end, close to the elastic piece (63), of the limiting column (62), and the side wall of the limiting column (62) is obliquely arranged.

4. The middle stick of a multifold umbrella as claimed in claim 3, wherein: the first riveting rod (41) penetrates through the middle pipe (2) or the inner pipe (1) and is inserted into the clamping piece (61).

5. The middle stick of a multifold umbrella as claimed in claim 4, wherein: spacing post (62) that inner tube (1) are connected rivet piece (5) butt with cup joint in the second that well pipe (2) of this inner tube (1) are connected, spacing post (62) that well pipe (2) are connected rivet piece (5) butt with the second that cup joint in well pipe (2) of this well pipe (2) or outer tube (3) are connected.

6. The middle stick of a multifold umbrella as claimed in claim 1, wherein: and a second chamfer (52) is formed in the end face, perpendicular to the axis of the middle rod, of the second riveting sheet (5), and one ends, close to the axis of the middle rod, of the second chamfer (52) of the second riveting sheet (5) are close to each other.

7. The middle stick of a multifold umbrella as claimed in claim 1, wherein: and the inner walls of the outer pipe (3) or the middle pipe (2) are coaxially provided with sleeves (7).

8. The middle stick of a multifold umbrella as claimed in claim 1, wherein: first chamfer (42) have all been seted up to two terminal surfaces of stick axis in first riveting piece (4) perpendicular to, the one end that stick axis was kept away from in first chamfer (42) is close to each other.