CN111067214B - A kind of middle rod of multi-fold umbrella - Google Patents
A kind of middle rod of multi-fold umbrella Download PDFInfo
- Publication number
- CN111067214B CN111067214B CN202010041998.5A CN202010041998A CN111067214B CN 111067214 B CN111067214 B CN 111067214B CN 202010041998 A CN202010041998 A CN 202010041998A CN 111067214 B CN111067214 B CN 111067214B
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- groove
- limiting
- upper nest
- connecting rod
- inner tube
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- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B19/00—Special folding or telescoping of umbrellas
- A45B19/04—Special folding or telescoping of umbrellas with telescopic sticks
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B25/00—Details of umbrellas
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B25/00—Details of umbrellas
- A45B25/06—Umbrella runners
- A45B25/08—Devices for fastening or locking
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B25/00—Details of umbrellas
- A45B2025/003—Accessories not covered by groups A45B25/24 - A45B25/30
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
本发明公开了一种多折伞中棒，包括外管、内管、轴向固定连于外管一端的上巢和位于外管内的连接杆，连接杆一端外套设有且设有卡块的连接栓，连接杆一端与上巢的底端通过连接栓固定连接；连接杆另一端位于内管内，且连有弧形凸块；内管靠近上巢的一端固定连有限位套，限位套一端开设有限位槽，限位槽的槽底设有供连接杆穿过的限位孔，限位槽的槽壁开设有供卡块卡接的卡槽，限位套另一端朝内管内延伸且设有与弧形凸块卡接的弧形槽；通过连接栓、连接杆、卡块、限位套、限位槽、限位孔、弧形凸块和弧形槽，实现在中棒折叠和伸长状态下，分别将内管锁定于连接杆两端内，整体扣合稳固，增强了中棒折叠或伸长时整体结构的稳定性，安全性高。
The invention discloses a middle rod of a multi-fold umbrella, comprising an outer tube, an inner tube, an upper nest axially fixedly connected to one end of the outer tube and a connecting rod located in the outer tube, a connecting bolt with a clamping block is arranged on the outer sleeve of one end of the connecting rod, and one end of the connecting rod is fixedly connected to the bottom end of the upper nest by the connecting bolt; the other end of the connecting rod is located in the inner tube and is connected with an arc-shaped protrusion; one end of the inner tube close to the upper nest is fixedly connected with a limiting sleeve, one end of the limiting sleeve is provided with a limiting groove, the groove bottom of the limiting groove is provided with a limiting hole for the connecting rod to pass through, the groove wall of the limiting groove is provided with a clamping groove for the clamping block to clamp, and the other end of the limiting sleeve extends toward the inner tube and is provided with an arc groove clamped with the arc-shaped protrusion; through the connecting bolt, the connecting rod, the clamping block, the limiting sleeve, the limiting groove, the limiting hole, the arc-shaped protrusion and the arc groove, the inner tube is locked in the two ends of the connecting rod respectively when the middle rod is folded and extended, the overall buckling is stable, the stability of the overall structure when the middle rod is folded or extended is enhanced, and the safety is high.
Description
Technical Field
The invention relates to the technical field of umbrella parts, in particular to a middle rod of a multi-fold umbrella.
Background
The umbrella is used as a sunshade or rainproof tool for daily use of people, and is a necessary product in life, wherein the folding umbrella is convenient to carry and becomes a necessary article for home and travel. The folding umbrella is composed of a plurality of umbrella tubes, when the folding umbrella is in an umbrella folding state, all the sections of the multi-folding rods are buckled together, and the contracted sections of the folding umbrella are buckled at fixed positions through corresponding locking bead holes formed in the slingshot or slingshot arranged in the tubes and the tubes. However, because the space between the inner pipe and the outer pipe is too small, the pipe fitting is buckled by using the mode, the buckling force is insufficient easily, the connection stability between each pipe is poor, gaps exist between the marble or the slingshot and the lock ball hole, the condition that fingers are scratched or clamped due to false collision often occurs, the problem of poor safety exists, and the middle rod is not smooth to use. Meanwhile, the strength of the middle rod is damaged by the holes, and the stability of the structure of the middle rod is reduced.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a multi-fold umbrella middle rod which has the advantages of good stability and high safety.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a stick in multi-fold umbrella, includes outer tube, inner tube and axial fixed connection in go up the nest of outer tube one end, still include be located connecting rod in the outer tube, connecting rod one end overcoat is equipped with the connecting bolt, connecting rod one end with go up the bottom of nest and pass through connecting bolt fixed connection, be provided with the fixture block on the connecting bolt, the connecting rod other end is located in the inner tube, and be connected with the arc lug, the inner tube is close to go up the one end fixedly connected with stop collar of nest, the confession is offered to stop collar one end connecting bolt reciprocating sliding's spacing groove, the spacing hole that supplies the connecting rod passes is offered to the tank bottom of spacing groove, the draw-in groove that supplies the fixture block joint is offered to the cell wall of spacing collar other end towards in the inner tube extend and be provided with the arc groove of arc lug joint.
The connecting pin is connected with a limiting cap at one end of the connecting pin, which is far away from the inner tube, an annular stop block for placing the limiting cap is connected at one end of the upper nest, which is close to the inner tube, an inner threaded hole is formed in the inner side of the annular stop block, an outer threaded hole connected with the inner threaded hole is formed in the outer peripheral surface of the connecting pin, and the arc-shaped protruding block is detachably connected with the other end of the connecting rod.
The connecting bolt is further provided with a limiting cap connected with one end far away from the inner pipe, a sliding groove for the reciprocating sliding of the limiting cap is formed in the top end of the upper nest, a sliding hole for the connecting bolt, the clamping block and the connecting rod to pass through is formed in the bottom of the sliding groove, a limiting stop block with a T-shaped cross section is connected with the notch of the sliding groove in a threaded mode, the limiting cap is abutted to the bottom of the sliding groove through the vertical end of the limiting stop block, and the arc-shaped protruding block is detachably connected with the other end of the connecting rod.
The sealing gasket is sleeved between the transverse end of the limit stop block and the upper nest.
The guide groove gradually expanding towards the direction close to the upper nest is further arranged at the notch of the limit groove, and a notch is formed in the peripheral surface of the limit sleeve.
The outer tube is provided with a rotating part which extends outwards and radially at one end close to the upper nest, and a rotating groove for placing the rotating part is formed in the inner side surface of the upper nest.
The cross section of the connecting rod is in a round rectangle, and the cross sections of the limiting groove and the limiting hole are in a round rectangle.
The novel scraping-resistant sleeve is further arranged between one end, far away from the upper nest, of the outer tube and the inner tube, the scraping-resistant sleeve is connected to the outer tube, and a guide part extending towards the upper nest is arranged on the scraping-resistant sleeve.
The fixture block is further arranged in a way that one side surface of the fixture block is in an arc shape.
The limiting sleeve and the inner tube are integrally formed.
In summary, the connecting bolt is clamped with the limiting sleeve through the connecting bolt, the connecting rod, the clamping block, the limiting sleeve, the limiting groove, the through hole and the limiting hole, so that the inner pipe and the upper nest are detachably and fixedly connected through the limiting sleeve and the connecting bolt, the inner pipe is locked in the outer pipe in a middle rod folding state, the whole buckling is stable, the whole stability of the middle rod in the folding state is enhanced, the function of locking the inner pipe at the other end of the connecting rod in the middle rod extending state is realized through the limiting sleeve, the connecting rod, the arc-shaped protruding block and the arc-shaped groove, the whole buckling is stable, the stability of the inner pipe and the outer pipe in the middle rod extending state is enhanced, the self structural stability of the middle rod is further ensured because the strength of the middle rod is not damaged due to the fact that the hole is formed in the inner pipe or the outer pipe, and in addition, the limiting sleeve, the connecting bolt, the arc-shaped protruding block and the arc-shaped protruding block are all positioned in the outer pipe, so that the use safety of the middle rod is further improved.
Drawings
FIG. 1 is a schematic view of a part of the structure of embodiment 1 of the present invention;
FIG. 2 is an exploded view of example 1 of the present invention;
Fig. 3 is a cross-sectional view of embodiment 1 of the present invention:
FIG. 4 is a cross-sectional view of embodiment 2 of the present invention;
fig. 5 is a schematic view of a partial structure of the present invention.
The device comprises an outer pipe, an inner pipe, an upper nest, a connecting rod, a connecting bolt, a connecting block, a clamping block, an arc-shaped lug, an arc-shaped groove, an 8 limiting sleeve, a 9 limiting groove, a 10 limiting hole, an 11 clamping groove, a 12 arc-shaped groove, a 13 through hole, a 14 limiting cap, a 15 annular stop block, a 16 internal threaded hole, a 17 external threaded hole, a 18 sliding groove, a 19 sliding hole, a 20 limiting stop block, a 21 sealing gasket, a 22 guiding groove, a 23 guiding opening, a 24 scraping-preventing sleeve, a 25 guiding part, a 26 rotating part, a 27 rotating groove.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings. It should be noted that the words "bottom" and "top" are used in the following description to refer to the direction of FIG. 1 toward the geometric center of a particular component.
The key concept of the invention is that the connecting bolt 5 is clamped with the limiting sleeve 8 through the connecting bolt 5, the clamping block 6, the limiting sleeve 8, the limiting groove 9, the clamping groove 11, the through hole 13 and the limiting hole 10, so that the inner tube 2 is detachably and fixedly connected to one end of the connecting rod 4, the inner tube 2 is locked in the outer tube 1, the whole buckling is stable, the whole stability of the middle rod during folding is enhanced, the inner tube 2 is pulled outwards towards the outer tube 1 to release the clamping of the clamping block 6 and the clamping groove 11, and meanwhile, the arc-shaped protruding block 7 is clamped with the arc-shaped groove 12 through the limiting sleeve 8, the connecting rod 4, the arc-shaped protruding block 7 and the arc-shaped groove 12, so that the function of locking the inner tube 2 at the other end of the connecting rod 4 in the state of extending the middle rod is realized, the whole buckling is stable, the stability of the structures of the inner tube 2 and the outer tube 1 is enhanced when the middle rod is extended, the self-structure stability of the middle rod is further ensured because the middle rod is not damaged due to the fact that the holes are formed in the inner tube 2 or the outer tube 1, and the safety of the limiting sleeve 8, the connecting bolt 5, the arc-shaped protruding block 12 and the arc-shaped protruding block 7 are positioned in the outer tube 1.
Referring to fig. 1 to 5, a multi-fold umbrella middle rod comprises an outer tube 1, an inner tube 2, an upper nest 3 axially and fixedly connected to one end of the outer tube 1, a connecting rod 4 positioned in the outer tube 1, a connecting bolt 5 sleeved outside one end of the connecting rod 4, one end of the connecting rod 4 and the bottom end of the upper nest 3 are fixedly connected through the connecting bolt 5, a clamping block 6 is arranged on the connecting bolt 5, the other end of the connecting rod 4 is positioned in the inner tube 2 and is connected with an arc-shaped protruding block 7, one end, close to the upper nest 3, of the inner tube 2 is fixedly connected with a limiting sleeve 8, one end of the limiting sleeve 8 is provided with a limiting groove 9 for the connecting bolt 5 to slide reciprocally, a limiting hole 10 for the connecting rod 4 to pass through is formed in the bottom of the limiting groove 9, a clamping groove 11 for the clamping block 6 to be clamped is formed in the groove wall of the limiting groove 9, and the other end of the limiting sleeve 8 extends towards the inner tube 2 and is provided with an arc-shaped groove 12 clamped with the arc-shaped protruding block 7.
As can be seen from the above description, when the middle rod needs to be folded, the clamping block 6 arranged on the connecting bolt 5 is clamped on the clamping groove 11 formed in the groove wall of the limiting groove 9, the connecting bolt 5 connected with one end of the connecting rod 4 and the bottom end of the upper nest 3 is clamped on the limiting sleeve 8 fixedly connected with one end of the inner tube 2 close to the upper nest 3, so that the inner tube 2 and the upper nest 3 are connected together through the limiting sleeve 8 and the connecting bolt 5, the inner tube 2 is locked in the outer tube 1, the whole buckling is stable, and the whole stability of the middle rod during folding is enhanced; the inner tube 2 is pulled out towards the direction away from the upper nest 3 by grasping one end of the inner tube 2 away from the upper nest 3 when the middle rod is required to be stretched, the limiting sleeve 8 moves along with the inner tube 2 towards the direction away from the upper nest 3, so that a clamping block 6 arranged on the connecting bolt 5 connected with the upper nest 3 leaves the limiting sleeve 8 to release the connection of the inner tube 2 in the outer tube 1, then the inner tube 2 is continuously moved towards the direction away from the outer tube 1 until an arc-shaped lug 7 connected with the other end of the connecting rod 4 is clamped with an arc-shaped groove 12 arranged at the other end of the limiting sleeve 8, one end of the outer tube 1 is fixedly connected with the upper nest 3 due to the fact that the other end of the connecting rod 4 is fixedly connected with the bottom end of the upper nest 3 through the connecting bolt 5, the function of locking the inner tube 2 at the other end of the connecting rod 4 under the state of stretching the middle rod is realized, the whole is buckled, the stability of the inner tube 2 and the outer tube 1 is enhanced when the middle rod is stretched, the arc-shaped groove 12 and the arc-shaped lug 7 are both positioned in the outer tube 1, the effect of further improving the safety of the use of the middle rod is achieved, in addition, no damage is caused by the fact that the middle rod is required to be stretched in the inner tube 2 or the inner tube 1 is not required to be stretched, thereby playing a role in further ensuring the self structural stability of the middle rod.
Further, a through hole 13 for the connecting bolt 5, the clamping block 6 and the connecting rod 4 to pass through is formed in the top end of the upper nest 3, one end, far away from the inner pipe 2, of the connecting bolt 5 is connected with a limiting cap 14, one end, close to the inner pipe 2, of the upper nest 3 is connected with an annular stop block 15 for the limiting cap 14 to be placed, an inner threaded hole 16 is formed in the inner side of the annular stop block 15, an outer threaded hole 17 connected with the inner threaded hole 16 is formed in the outer peripheral surface of the connecting bolt 5, and the arc-shaped protruding block 7 is detachably connected with the other end of the connecting rod 4.
It can be seen from the above description that when the connecting rod 4, the connecting bolt 5 and the upper nest 3 need to be assembled, the connecting bolt 5, the connecting rod 4 and the clamping block 6 pass through the through hole 13 formed at the top end of the upper nest 3, the connecting bolt 5 is rotated until the limit cap 14 is abutted against the annular stop block 15, so that the external threaded hole 17 formed on the outer peripheral surface of the connecting bolt 5 is connected with the external threaded hole 17 formed on the inner side of the annular stop block 15, thereby realizing the function of detachably and fixedly connecting the connecting bolt 5 to the bottom end of the upper nest 3, and simultaneously, when the connecting rod 4 or the clamping block 6 is damaged, the connecting bolt 5 is unscrewed firstly by unscrewing the arc-shaped protruding block 7, then unscrewed, and finally the connecting rod 4 and the connecting bolt 5 are pulled out from the through hole 13, thereby achieving the effect of conveniently and rapidly replacing the connecting rod 4 and the connecting bolt 5.
Further, one end of the connecting bolt 5 far away from the inner tube 2 is connected with a limit cap 14, the top end of the upper nest 3 is provided with a sliding groove 18 for the limit cap 14 to slide reciprocally, the bottom of the sliding groove 18 is provided with a sliding hole 19 for the connecting bolt 5, the clamping block 6 and the connecting rod 4 to pass through, the notch of the sliding groove 18 is connected with a limit stop 20 with a T-shaped cross section in a threaded manner, the limit cap 14 is abutted to the bottom of the sliding groove 18 through the vertical end of the limit stop 20, and the arc-shaped protruding block 7 is detachably connected with the other end of the connecting rod 4.
It is apparent from the above description that when the connecting rod 4, the connecting bolt 5 and the upper nest 3 are required to be assembled, the connecting bolt 5, the connecting rod 4 and the clamping block 6 are firstly sequentially passed through the sliding groove 18 and the sliding hole 19 which are formed in the top end of the upper nest 3, then the limit stop 20 which is connected with the notch of the sliding groove 18 through screwing is screwed until the vertical end of the limit stop 20 abuts the limit cap 14 on the bottom of the sliding groove 18, thereby realizing the function of fixedly connecting the connecting bolt 5 to the bottom end of the upper nest 3, meanwhile, when the connecting rod 4 or the clamping block 6 is damaged, the arc-shaped protruding block 7 is firstly unscrewed, then the limit stop 20 is unscrewed, finally the connecting rod 4 and the connecting bolt 5 are pulled out from the through hole 13, thereby achieving the function of conveniently and rapidly replacing the connecting rod 4 and the connecting bolt 5, in addition, the troublesome procedure of glue adhesion and fixation is omitted, and the production and the processing are convenient and environment-friendly.
Further, a sealing gasket 21 is sleeved between the transverse end of the limit stop 20 and the upper nest 3.
From the above description, the sealing gasket 21 sleeved between the transverse end of the limit stop 20 and the upper nest 3 prevents the outer tube 1 and the inner tube 2 from rusting due to water entering the outer tube 1 and the inner tube 2 from the limit stop 20 through the sliding groove 18 and the sliding hole 19, and plays a role in sealing and waterproofing.
Further, the notch of the limit groove 9 is provided with a guide groove 22 which gradually expands towards the direction approaching to the upper nest 3, and the peripheral surface of the limit sleeve 8 is provided with a notch 23.
From the above description, the guide groove 22 formed in the notch of the limit groove 9 and gradually expanding towards the direction approaching to the upper nest 3 facilitates the clamping block 6 to better enter the clamping groove 11 through the limit groove 9, and the notch 23 formed on the outer peripheral surface of the limit sleeve 8 increases the elasticity of the limit sleeve 8, thereby further facilitating the clamping block 6 to slide into the clamping groove 11.
Further, a rotating part 26 is arranged at one end of the outer tube 1 close to the upper nest 3 in a radial extending way, and a rotating groove 27 for placing the rotating part 26 is arranged on the inner side surface of the upper nest 3.
As can be seen from the above description, when a wind is blown, the outer tube 1 is driven to rotate around the central axis of the upper nest 3 by rotating the rotating portion 26, which is disposed at one end of the outer tube 1 near the upper nest 3, in the rotating groove 27 along the outer radial direction, so that the rib is prevented from bending and deforming up and down due to the influence of wind force in the case of wind, and the overall stability and safety are further enhanced.
Further, the cross section of the connecting rod 4 is in a round-corner rectangular shape, and the cross sections of the limiting groove 9 and the limiting hole 10 are in a round-corner rectangular shape.
It can be seen from the above description that the cross sections of the connecting rod 4, the limiting groove 9 and the limiting hole 10 are all provided with rounded corners and rectangular, so that damage to the clamping block 6, the arc-shaped protruding block 7 and the limiting sleeve 8 caused by rotation of the inner tube 2 driven by rotation of the connecting rod 4 and damage to the peripheral surface of the limiting sleeve 8 and the limiting hole 10 caused by sliding collision of the connecting rod 4 in the limiting sleeve 8 are avoided in the process of telescoping the inner tube 2, the overall service life is prolonged, the overall use safety is enhanced, and meanwhile, the stability of connection between the inner tube 2 and the connecting rod 4 is enhanced, and further the overall stability is further enhanced.
Further, a scratch-proof sleeve 24 is arranged between one end of the outer tube 1 far away from the upper nest 3 and the inner tube 2, the scratch-proof sleeve 24 is connected to the outer tube 1, and the scratch-proof sleeve 24 is provided with a guide part 25 extending towards the upper nest 3.
From the above description, the outer surface of the inner tube 2 is not contacted with the inner surface of the outer tube 1 at the end far away from the upper nest 3 by the scratch-proof sleeve 24 arranged between the end far away from the upper nest 3 of the outer tube 1 and the inner tube 2, so that the outer surface of the inner tube 2 is prevented from being scratched by the outer tube 1 to influence the appearance of the attractive appearance, the damage to the hands of a user caused by collision between the end far away from the upper nest 3 of the outer tube 1 and the hands of the user in the telescoping process of the outer tube 1 and the inner tube 2 is avoided, the overall safety is further enhanced, and the inner tube 2 is further guided to reciprocate towards the length direction of the connecting rod 4 while the inner tube 2 and the outer tube 1 are protected by the guide part 25 extending towards the upper nest 3 of the scratch-proof sleeve 24.
Further, one side of the clamping block 6 is arranged in an arc shape.
It can be seen from the above description that, in the process of contacting the clamping block 6 with the groove walls of the clamping groove 11 and the limiting groove 9, by arranging one side surface of the clamping block 6 to be arc-shaped, friction between the clamping block 6 and the clamping groove 11 and between the clamping block 6 and the limiting groove 9 is reduced, resistance during extension and retraction of the inner pipe 2 is reduced, the whole convenience of use is enhanced, meanwhile, damage to the clamping groove 11, the limiting groove 9 and the clamping block 6 caused by unsmooth contact surfaces between the clamping buckle and the clamping groove 11 and the limiting groove 9 is reduced, and the whole service life is prolonged.
Further, the limit sleeve 8 and the inner tube 2 are integrally formed.
From the above description, it can be seen that the stop collar 8 is integrally formed on the inner tube 2, and the stop collar 8 is firmly combined with the connecting rod 4 to prevent the inner tube 2 and the stop collar 8 from shaking and falling off during the process of sliding and locking or unlocking the inner tube 2 along the length direction of the connecting rod 4, so that the stability and safety of the inner tube 2 and the stop collar 8 are ensured, and meanwhile, the troublesome process of glue adhesion and fixation is omitted, and the production and the processing are convenient and environment-friendly.
Referring to fig. 1 to 5, embodiment 1 provided by the present invention is:
A multi-fold umbrella middle rod is shown in fig. 1 and 2, and comprises an outer tube 1, an inner tube 2, an upper nest 3 and a connecting rod 4, wherein the upper nest 3 is axially and fixedly connected with one end of the outer tube 1, the outer tube 1 is sleeved outside the inner tube 2, a connecting bolt 5 is sleeved outside one end of the connecting rod 4, the connecting bolt 5 and the connecting rod 4 are both positioned in the outer tube 1, and one end of the connecting rod 4 is fixedly connected with the bottom end of the upper nest 3 through the connecting bolt 5.
As shown in fig. 2 and 3, one end of the inner tube 2, which is close to the upper nest 3, is fixedly connected with a limit sleeve 8, the limit sleeve 8 and the inner tube 2 are integrally formed, a notch 23 is formed on the outer circumferential surface of the limit sleeve 8, a limit groove 9 for the connecting bolt 5 to slide reciprocally is formed at one end of the limit sleeve 8, a guide groove 22 gradually expanding towards the direction close to the upper nest 3 is formed at the notch of the limit groove 9, a limit hole 10 for the connecting rod 4 to pass through is formed at the bottom of the limit groove 9, a clamping groove 11 is formed at the groove wall of the limit groove 9, an arc-shaped groove 12 is formed at the other end of the limit sleeve 8, a rotating part 26 is formed at the other end of the outer tube 1, which is close to the upper nest 3, a rotating groove 27 for the rotating part 26 to be placed is formed at the inner side surface of the upper nest 3, and the rotating part 26 can be an annular bump, a bearing or other forms.
As shown in fig. 1 and 2, a clamping block 6 is arranged on the connecting bolt 5, the clamping block 6 is clamped in a clamping groove 11, and one side of the clamping block 6 is arranged in an arc shape;
as shown in fig. 2 and 5, the other end of the connecting rod 4 is detachably connected with an arc-shaped protruding block 7, and the arc-shaped protruding block 7 is clamped in an arc-shaped groove 12;
as shown in fig. 1 and 3, a sliding groove 18 for the reciprocating sliding of the limit cap 14 is formed at the top end of the upper nest 3, a sliding hole 19 for the connecting bolt 5, the clamping block 6 and the connecting rod 4 to pass through is formed at the bottom of the sliding groove 18, a limit stop 20 with a T-shaped cross section is connected with the notch of the sliding groove 18 in a threaded manner, a sealing gasket 21 is sleeved between the transverse end of the limit stop 20 and the upper nest 3, and the limit cap 14 is abutted to the bottom of the sliding groove 18 through the vertical end of the limit stop 20.
As shown in fig. 1 and 2, the cross section of the connecting rod 4 is provided with a rounded rectangle, and the cross sections of the limit groove 9 and the limit hole 10 are provided with rounded rectangles.
As shown in fig. 2 and 3, a scratch-proof sleeve 24 is arranged between one end of the outer tube 1 far away from the upper nest 3 and the inner tube 2, the scratch-proof sleeve 24 is connected to the outer tube 1, and the scratch-proof sleeve 24 is provided with a guide part 25 extending towards the upper nest 3.
Embodiment 2 is different from embodiment 1 in that, as shown in fig. 4, a through hole 13 for the connecting bolt 5, the clamping block 6 and the connecting rod 4 to pass through is formed at the top end of the upper nest 3, one end of the upper nest 3 close to the inner pipe 2 is connected with an annular stop block 15 for the limiting cap 14 to be placed, an inner threaded hole 16 is formed at the inner side of the annular stop block 15, and an outer threaded hole 17 connected with the inner threaded hole 16 is formed at the outer peripheral surface of the connecting bolt 5.
In summary, compared with the prior art, the invention has the advantages of good stability and high safety, the connecting bolt 5, the connecting rod 4, the clamping block 6, the limiting sleeve 8, the limiting groove 9 and the limiting hole 10 are used for clamping the connecting bolt 5 and the limiting sleeve 8, so that the inner pipe 2 and the upper nest 3 are detachably and fixedly connected through the limiting sleeve 8 and the connecting bolt 5, the inner pipe 2 is locked in the outer pipe 1 in a middle rod folding state, the whole buckling is stable, the whole stability of the middle rod in folding is enhanced, the clamping block 6 and the clamping groove 11 are simultaneously released through the limiting sleeve 8, the connecting rod 4, the arc-shaped protruding block 7 and the arc-shaped groove 12, the inner pipe 2 is locked at the other end of the connecting rod 4 in a middle rod extending state, the whole buckling is stable, the stability of the inner pipe 2 and the outer pipe 1 is enhanced in a middle rod extending state, the self-structure stability of the middle rod is further ensured because the inner pipe 2 and the outer pipe 1 is not damaged due to the fact that the holes are not required to be formed in the inner pipe 2 or the outer pipe 1, and the safety in use is further improved.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010041998.5A CN111067214B (en) | 2020-01-15 | 2020-01-15 | A kind of middle rod of multi-fold umbrella |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010041998.5A CN111067214B (en) | 2020-01-15 | 2020-01-15 | A kind of middle rod of multi-fold umbrella |
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| Publication Number | Publication Date |
|---|---|
| CN111067214A CN111067214A (en) | 2020-04-28 |
| CN111067214B true CN111067214B (en) | 2025-02-28 |
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| CN111772308A (en) * | 2020-08-13 | 2020-10-16 | 深圳减字科技有限公司 | Honeycomb device of umbrella and umbrella |
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| CN205993797U (en) * | 2016-08-19 | 2017-03-08 | 杭州霍德品牌管理有限公司 | Rod in a kind of multi-fold umbrella |
| CN206101857U (en) * | 2016-10-18 | 2017-04-19 | 肖沧州 | Lock structure of many umbrella bodys |
| CN206137416U (en) * | 2016-11-03 | 2017-05-03 | 杨祖发 | Stopper structure in stick in many umbrellas |
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