阅读说明：本技术 在上巢一次挂装全部伞骨的整体挂装流程 (Integral hanging process for hanging all umbrella ribs at last nest once ) 是由 林贞双 李志民 张向峰 于 2019-08-19 设计创作，主要内容包括：本发明涉及在上巢一次挂装全部伞骨的整体挂装流程,包括在工装辅助下先在中棒上套装好由限位套和巢座组成的第一组合件；将由操作圆件、轴承和弹力件组成的第二组合件安装在巢座顶部并将操作圆件下压且限制其平面转动；安装滑片及巢盖；沿工艺槽插入所有伞骨；下压状态下旋转操作圆件指定角度,继而使得各滑片的外端分别穿过伞骨内端的枢接孔。本发明伞骨可一次全部组装到位,也可单独拆装,结构稳定,方便用户操作与使用。(The invention relates to an integral hanging process for hanging all umbrella ribs at a nest at one time, which comprises the steps of sleeving a first assembly consisting of a limiting sleeve and a nest seat on a middle rod under the assistance of a tool; mounting a second assembly consisting of an operation round piece, a bearing and an elastic piece on the top of the nest seat, pressing down the operation round piece and limiting the plane rotation of the operation round piece; installing a sliding sheet and a nest cover; inserting all umbrella ribs along the craft groove; rotate the designated angle of operation circle piece under the state of pushing down, make the outer end of each gleitbretter pass the pin joint hole of rib inner respectively then. The umbrella rib can be completely assembled in place at one time, and can also be independently disassembled and assembled, the structure is stable, and the operation and the use of a user are convenient.)

1. The integral hanging process for hanging all umbrella ribs at an upper nest is characterized by comprising the following steps:

s1.1, prefabricating an operation round piece, a sliding piece, a nest cover, a limiting sleeve and a nest seat according to a design drawing, installing an elastic piece at the bottom of a bearing inner piece of the operation round piece to assemble a second assembly, uniformly arranging a first driving part on the upper part of the outer wall of the operation round piece in the circumferential direction, and convexly arranging a second driving part on the lower part of the outer wall of the operation round piece; the edge of the top of the nest seat is uniformly provided with a containing groove in the circumferential direction, a process groove is processed in the containing groove, and the assembled limiting sleeve and the nest seat are first combined parts; a hanging groove and a limiting ring groove are processed on the bottom surface of the nest cover;

s1.2, vertically fixing a middle rod on a tool and vertically penetrating a horizontal table of the tool, wherein a circular groove concentric with the middle rod and radial process grooves which are uniformly radiated by taking the circular groove as a circle center and are matched with accommodating grooves in quantity are arranged on the horizontal table, then sleeving a first assembly piece into the middle rod from top to bottom and enabling a nest seat to be fittingly placed in the circular groove on the horizontal table, the accommodating grooves respectively radially correspond to the radial process grooves, and fixing the first assembly piece through a first clamping mechanism on the tool;

s1.3, sleeving a second assembly part into a middle rod from top to bottom, fixedly installing the second assembly part at the center of the top of a nest seat after a clamping hole in an operation circular part corresponds to the middle rod, enabling a first driving part on the operation circular part to be respectively on an angular bisector between the center lines of two circumferentially adjacent accommodating grooves at the moment, and then pressing down the operation circular part by using a second clamping mechanism on a tool and limiting the plane rotation of the operation circular part;

s1.4, respectively loading the driven part of the slide sheet corresponding to the first driving part and the outer end of the slide sheet corresponding to the sliding chute from top to bottom, wherein at the moment, because the operation circular piece is not moved and the first driving part is matched with the driven part, each slide sheet cannot be displaced under the condition of external force which is not enough to overcome the clamping action force or no external force action;

s1.5, corresponding to the connecting position of the nest seat and the nest cover, pressing a hanging groove at the bottom of the nest cover into a guide block corresponding to the middle part of the sliding sheet, and completing the installation of the nest cover after all the hanging grooves are pressed in place;

s1.6, inserting prefabricated umbrella ribs into the accommodating grooves along the radial process groove, wherein the inner ends of the umbrella ribs are inserted into the process groove in a matched mode and are tightly abutted, and pin-joint holes in the inner ends of the umbrella ribs are guaranteed to correspond to sliding grooves in corresponding positions;

s1.7, canceling the action of a second clamping mechanism, manually or mechanically rotating the plane of the operation circular piece by a designated angle A under the state of keeping the plane downwards pressed, then enabling the outer end of each sliding piece to respectively penetrate through the pivot holes at the inner ends of the umbrella ribs, canceling the downwards pressing force, enabling the operation circular piece to recover to an initial height under the upward restoring force of the elastic piece, enabling the driven part of each sliding piece to be separated from the first driving part, enabling the middle part of the smooth surface of the outer wall of the operation circular piece to be opposite to the sliding piece, then reversely rotating the designated angle A by the plane to enable the second driving part on the operation circular piece to be below one side of one sliding piece pointed by the clamping hole, and keeping the state, driving a blocking nail into the clamping hole to limit the plane rotation of the operation circular piece to finish the assembly of.

2. The process of claim 1, wherein after the ribs and the upper nest are assembled in step S1.7 and the whole umbrella frame is assembled, the umbrella cap is screwed to the upper end of the operating round piece after covering the umbrella surface and the umbrella cap presses the umbrella surface against the top surface of the nest cover.

Technical Field

The invention relates to the technical field of umbrellas, in particular to an integral hanging process for hanging all umbrella ribs at the upper nest once.

Background

The prior art umbrella frame nest structure comprises: the umbrella comprises a main umbrella rib, an upper umbrella rib nest, a baffle pipe, a lower umbrella rib nest, eight upper umbrella ribs, eight lower umbrella ribs and two iron wires, wherein the upper umbrella rib nest is a short cylinder, the center of the upper umbrella rib nest is provided with a through hole, the middle part of the outer edge is provided with a pin hole, the outer edge is provided with eight pivot grooves at equal angles, the middle part of the outer edge is provided with a containing groove, the lower umbrella rib nest is a long cylinder, the center of the lower umbrella rib nest is provided with a through hole, the upper end of the lower umbrella rib is a large honeycomb part, the outer edge of the lower umbrella rib is provided with eight pivot grooves at equal angles, the middle part of the lower umbrella rib is provided with a containing groove, the end part of the.

When the umbrella is assembled, the upper umbrella rib nest is fixed at the upper end of the main umbrella rib by a bolt through the pin hole, then the baffle pipe is fixed on the main umbrella rib below the upper umbrella rib nest by the bolt, the lower umbrella rib nest is sleeved on the main umbrella rib below the baffle pipe, then an iron wire is used for penetrating through the pivot holes of the eight upper umbrella ribs, the eight upper umbrella ribs are strung together, the flat parts of the upper umbrella ribs are respectively arranged in the pivot grooves of the upper umbrella rib nest, then the iron wire is wound by a tool and arranged in the pivot grooves of the upper umbrella rib nest, another iron wire is used for penetrating through the pivot holes of the eight lower umbrella ribs to string the eight lower umbrella ribs together, then the flat parts of the lower umbrella ribs are respectively arranged in the pivot grooves of the lower umbrella rib nest, then the iron wire is wound by the tool and arranged in the accommodating groove of the lower umbrella rib nest, and the assembly of the whole skeleton is completed after the positions of; when the umbrella is used, the lower umbrella rib nest is pushed upwards along the main umbrella ribs, so that the upper umbrella ribs and the lower umbrella ribs rotate in the pivot grooves of the upper umbrella rib nest and the lower umbrella rib nest respectively under the fixation of the iron wires, and the umbrella is unfolded.

The above structure has the following disadvantages: the umbrella rib and the lower umbrella rib are hinged in the upper umbrella rib nest and the lower umbrella rib nest, the iron wire is firstly used for connecting the umbrella ribs in series and then respectively placed in the pivoting grooves of the upper umbrella rib nest and the lower umbrella rib nest, the iron wire connecting the upper umbrella rib and the lower umbrella rib in series can generate a sharp winding part after being wound, if a user does not pay attention to the iron wire, fingers can be scratched, the tightness of the iron wire is manually mastered, or the tightness is unfavorable to the up-and-down overturning and using of the umbrella ribs, in addition, all the umbrella ribs are connected on the iron wire in series, one umbrella rib cannot be independently dismounted, and needs to be completely opened, so that the umbrella rib is inconvenient for the user, and the operation difficulty is large.

Disclosure of Invention

The invention aims to provide an integral hanging process for hanging all umbrella ribs at an upper nest at one time, and the umbrella ribs can be completely assembled at one time.

The technical solution adopted by the invention is as follows:

the integral hanging process for hanging all umbrella ribs at an upper nest comprises the following steps:

s1.1, prefabricating an operation round piece, a sliding piece, a nest cover, a limiting sleeve and a nest seat according to a design drawing, installing an elastic piece at the bottom of a bearing inner piece of the operation round piece to assemble a second assembly, uniformly arranging a first driving part on the upper part of the outer wall of the operation round piece in the circumferential direction, and convexly arranging a second driving part on the lower part of the outer wall of the operation round piece; the edge of the top of the nest seat is uniformly provided with a containing groove in the circumferential direction, a process groove is processed in the containing groove, and the assembled limiting sleeve and the nest seat are first combined parts; a hanging groove and a limiting ring groove are processed on the bottom surface of the nest cover;

s1.2, vertically fixing a middle rod on a tool and vertically penetrating a horizontal table of the tool, wherein a circular groove concentric with the middle rod and radial process grooves which are uniformly radiated by taking the circular groove as a circle center and are matched with accommodating grooves in quantity are arranged on the horizontal table, then sleeving a first assembly piece into the middle rod from top to bottom and enabling a nest seat to be fittingly placed in the circular groove on the horizontal table, the accommodating grooves respectively radially correspond to the radial process grooves, and fixing the first assembly piece through a first clamping mechanism on the tool;

s1.3, sleeving a second assembly part into a middle rod from top to bottom, fixedly installing the second assembly part at the center of the top of a nest seat after a clamping hole in an operation circular part corresponds to the middle rod, enabling a first driving part on the operation circular part to be respectively on an angular bisector between the center lines of two circumferentially adjacent accommodating grooves at the moment, and then pressing down the operation circular part by using a second clamping mechanism on a tool and limiting the plane rotation of the operation circular part;

s1.4, respectively loading the driven part of the slide sheet corresponding to the first driving part and the outer end of the slide sheet corresponding to the sliding chute from top to bottom, wherein at the moment, because the operation circular piece is not moved and the first driving part is matched with the driven part, each slide sheet cannot be displaced under the condition of external force which is not enough to overcome the clamping action force or no external force action;

s1.5, corresponding to the connecting position of the nest seat and the nest cover, pressing a hanging groove at the bottom of the nest cover into a guide block corresponding to the middle part of the sliding sheet, and completing the installation of the nest cover after all the hanging grooves are pressed in place;

s1.6, inserting prefabricated umbrella ribs into the accommodating grooves along the radial process groove, wherein the inner ends of the umbrella ribs are inserted into the process groove in a matched mode and are tightly abutted, and pin-joint holes in the inner ends of the umbrella ribs are guaranteed to correspond to sliding grooves in corresponding positions;

s1.7, canceling the action of a second clamping mechanism, manually or mechanically rotating the plane of the operation circular piece by a designated angle A under the state of keeping the plane downwards pressed, then enabling the outer end of each sliding piece to respectively penetrate through the pivot holes at the inner ends of the umbrella ribs, canceling the downwards pressing force, enabling the operation circular piece to recover to an initial height under the upward restoring force of the elastic piece, enabling the driven part of each sliding piece to be separated from the first driving part, enabling the middle part of the smooth surface of the outer wall of the operation circular piece to be opposite to the sliding piece, then reversely rotating the designated angle A by the plane to enable the second driving part on the operation circular piece to be below one side of one sliding piece pointed by the clamping hole, and keeping the state, driving a blocking nail into the clamping hole to limit the plane rotation of the operation circular piece to finish the assembly of.

Further, after the umbrella ribs and the upper nest in the step S1.7 are assembled, and then the whole umbrella framework is assembled, the umbrella cap is taken out after the umbrella surface is covered, the umbrella cap is connected to the upper end of the operation circular part in a threaded mode, and the umbrella surface is pressed on the top surface of the nest cover by the umbrella cap.

The invention has the beneficial effects that:

1. the invention provides an improved upper nest structure which is obviously different from the existing honeycomb structure, the upper nest comprises a nest seat and a nest cover, sliding sheets are uniformly arranged on the top of the nest seat in the circumferential direction, operation round pieces are concentrically arranged at the inner ends of the sliding sheets, a first driving part matched with a driven part at the inner ends of the sliding sheets is arranged at the upper part of the outer wall of each operation round piece, a second driving part matched with the side surface of each sliding sheet is arranged at the lower part of the outer wall of each operation round piece, each operation round piece comprises a bearing internal piece and is arranged on the nest seat through an elastic piece, therefore, when the operation round pieces are pressed down, each first driving part can respectively act with the corresponding driven part of the sliding sheet, when the operation round pieces are rotated in a plane, all the sliding sheets can be driven to synchronously and simultaneously rotate in the same direction, so that the outer ends of the sliding sheets are matched with umbrella rib pin joint holes penetrating into corresponding accommodating grooves, one-time assembly is realized, the upper nest structure is simple and the stability and firmness are realized, the tensile strength is high, in addition, the tightness is consistent, the manual influence is low, and no sharp winding head exists; when a certain umbrella rib needs to be disassembled and replaced for maintenance, the disassembly and assembly of the single umbrella rib can be realized on the premise of not influencing the installation state of other umbrella ribs, and the defect of low efficiency that the traditional iron wire pin joint structure needs to be completely disassembled and replaced is overcome.

2. The middle part of the slip sheet is provided with the space avoiding area which can avoid interference with the containing groove and the umbrella ribs, the top surface of the middle part of the slip sheet is provided with the guide block, the outer end of the slip sheet is provided with the circular arc strip matched with the circular groove, and the bottom of the nest cover is provided with the limiting ring groove matched with the circular arc strip and the hanging groove matched with the guide block, so that the levelness and the position degree of the slip sheet can be greatly ensured, and the accurate matching relation of the slip sheet, the operation circular piece and the umbrella ribs is ensured.

3. The bottom of the operation round piece is embedded with the bearing inner piece, the elastic piece is arranged between the bottom of the bearing inner piece and the top of the nest seat, and meanwhile, a pull-up space is reserved between the bottom of the nest cover and the operation round piece, so that the operation round piece can move up and down to convert the relative positions of a first driving part, a second driving part or a smooth surface and the like of an outer wall and a sliding piece, and the operation round piece can rotate in a plane to facilitate the assembly and disassembly of a single umbrella rib and the synchronous assembly and disassembly of all sliding pieces on the umbrella rib.

4. The upper end of the operation round piece penetrates through the nest cover, the upper part of the operation round piece is transversely provided with a clamping hole for penetrating a blocking nail to clamp the middle rod in a penetrating mode, the clamping hole or the blocking nail has the effects that the operation round piece is fixed on the middle rod, the structural stability of the upper nest and the middle rod is enhanced by matching with the bearing inner piece, umbrella ribs are prevented from falling off due to accidental rotation of the operation round piece in the using process of the umbrella, the safety is improved, and the clamping hole is arranged corresponding to the initial position of the second driving part and can be used for indicating the position change of the plane of the second driving part after rotation.

5. The process groove is arranged in the accommodating groove, and the notch of the process groove is of a gradually-reduced structure and has elasticity, so that the clamping acting force can be kept, and the process groove is not loosened and dislocated randomly to influence the assembly.

Drawings

Fig. 1 is a schematic view showing the process of replacing the rib and the upper nest of the present invention.

Fig. 2 is a schematic view of the whole hanging process of the umbrella rib and the upper nest to complete the hanging of the whole umbrella rib at one time.

Fig. 3 is a schematic view of the structure of the rib of the invention on the top of the nest.

Fig. 4 is a schematic view of the structure of the assembled rib on top of the nest of the present invention.

Fig. 5 is a schematic view of the second actuator termination position after removal of a single rib in accordance with the present invention.

Fig. 6 is a schematic view showing the starting position of the second driving part when a single umbrella rib is installed in the umbrella of the present invention.

Fig. 7 is a partial schematic view of the P-part shown in fig. 3.

FIG. 8 is a top view of the slider of the present invention.

Fig. 9 is a sectional view taken along a-a shown in fig. 3 in an initial state of the operating round member after the assembly of the upper nest is completed according to the present invention.

FIG. 10 is a semi-sectional view of the upper nest in a state where the operation round piece is pressed down according to the present invention.

FIG. 11 is a semi-sectional view of the upper nest in a state where the operation round piece is pulled up.

Description of reference numerals:

10. a nest seat; 11. a seat hole; 12. a chute; 13. a containing groove; 14. a process tank; 20. a nest cover; 21. a limiting ring groove; 22. hanging the groove; 23. a pull-up space; 30. operating the round piece; 31. a first driving section; 32. a second driving section; 33. a bearing inner member; 34. a circular hole; 35. a position clamping hole; 40. sliding blades; 41. a driven part; 42. a guide block; 50. an elastic member; 60. an umbrella cap; 70. a limiting sleeve; 80. umbrella ribs; 90. a middle rod.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which:

as shown in fig. 3-11, the present embodiment provides an improved upper nest structure for umbrella, which comprises a nest base 10 and a nest cover 20.

In this embodiment, the center of the top of the nest 10 is provided with a through hole 11 and a circular operating element 30 concentrically arranged at the periphery of the hole 11, and the top edge of the nest 10 is provided with a sliding groove 12 having a circular cross section and concentrically arranged with the hole 11 and a plurality of receiving grooves 13 circumferentially arranged at equal intervals and communicated with the sliding groove 12.

The operation circle piece 30 and the spout 12 between equidistant circumference interval arrangement have with storage tank 13 quantity assorted gleitbretter 40, each gleitbretter 40 rigidity is very strong, non-deformable, the quantity that generally designs into gleitbretter 40 and storage tank 13 is 8, each gleitbretter 40 structure, the size is the same, each storage tank 13 structure, the size is the same, the central angle between the central line of adjacent two storage tanks 13 of circumference is 45 every week, each storage tank 13 is equipped with a gleitbretter 40, storage tank 13 is the inner that is used for installing rib 80, and gleitbretter 40 is the pin joint hole that is used for wearing to establish on rib 80 the inner and accomplishes rib 80's hanging dress. In order to improve the assembly efficiency, the side wall of the accommodating groove 13 close to the center of the nest 10 is vertically provided with process grooves 14, the radial distance between the inner end of each process groove 14 and the center line of the sliding groove 12 is the same, and further, the notch of each process groove 14 is in a tapered structure and has elasticity, so that the clamping acting force can be kept, and the assembly is influenced by the random loosening and translocation of the notch.

In this embodiment, the outer end of each sliding piece 40 is respectively established to the circular arc strip that the adaptation set up in spout 12, and the inner of each sliding piece 40 is established to the radial extension setting of fan ring structure and two sides all along operation circle 30 respectively, and the connection piece between the distal end of keeping away from corresponding storage tank 13 of circular arc strip and the fan ring establishes to the middle part of sliding piece 40, one side towards corresponding storage tank 13 of connection piece is equipped with keeps away the dead zone for storage tank 13 can not be interfered at the middle part of sliding piece 40 when sliding piece 40 is in the hanging dress user state, and the connection piece top surface is equipped with guide block 42.

In this embodiment, the operating circular member 30 is a hollow stepped shaft, the upper portion is a cylindrical member with a smaller diameter, the lower portion is composed of a bearing inner member 33 and a cylindrical outer sleeve which is sleeved outside the bearing inner member 33 and has a larger diameter, the cylindrical outer sleeve is fixedly connected with the cylindrical member, a circular hole 34 which is coaxially communicated with the seat hole 11 is vertically arranged in the center of the operating circular member 30 in a penetrating manner, and the circular hole 34 and the bearing inner member 33 are used for the middle rod 90 to penetrate and fix. An elastic member 50 is fixedly connected between the bottom of the bearing inner member 33 and the top of the nest 10, the elastic member 50 is a compression spring or a rubber pad with a transverse notch, so that the operation round member 30 can be restored to the initial height after the upper pulling force or the lower pulling force is removed, the 360-degree rotation of the operation round member 30 is not hindered, and a groove can be concavely arranged on the top of the nest 10 to facilitate the installation of the elastic member 50 and the adjustment of the relative position of the operation round member 30 and the sliding sheet 40 when necessary.

In addition, in order to realize that the sliding piece 40 is driven to move along the circumferential direction of the sliding slot 12 by the operation circular piece 30, a driven part 41 is arranged at one side of the inner end of the sliding piece 40 facing the operation circular piece 30, a first driving part 31 matched with each driven part 41 is arranged at the upper part of the outer wall of the operation circular piece 30, a second driving part 32 matched with the side surface of the sliding piece 40 is arranged at the lower part of the outer wall of the operation circular piece 30, the middle part of the outer wall of the operation circular piece 30 is a smooth outer wall between the first driving part 31 and the second driving part 32, when the elastic piece 50 is at the initial height, the smooth outer wall middle part of the operation circular piece 30 is opposite to the sliding piece 40, the second driving part 32 is positioned below each sliding piece 40. Specifically, the method comprises the following steps: the first driving part 31 is a clamping groove vertically arranged at the upper part of the outer wall of the operation circular part 30, the driven part 41 is a clamping strip vertically arranged at the inner end of the sliding sheet 40 and matched with the clamping groove, and the upper end of the clamping groove can be opened for facilitating the smooth insertion of the clamping strip into the clamping groove; the second driving portion 32 is a lever protruding radially outward relative to the lower portion of the outer wall of the operation circular member 30, and the lever is selectively engaged with one side surface of the sliding piece 40 to allow the sliding piece 40 to rotate clockwise or counterclockwise.

In this embodiment, the cover 20 is placed on top of the nest 10, as a preferred embodiment for mounting the cover 20 to the nest 10: the top edge of the nest base 10 is convexly provided with elastic reverse buckles, the positions of the nest cover 20 corresponding to the elastic reverse buckles are respectively provided with positioning holes, and the elastic reverse buckles penetrate through the positioning holes and clamp and fix the nest cover 20 and the nest base 10 together, which is not shown in the figure; as another preferred embodiment for mounting the cover 20 to the nest 10: the edge of the top of the nest base 10 is convexly provided with a positioning column, the center of the positioning column is vertically provided with threaded holes, the positions of the nest cover 20 corresponding to the threaded holes are respectively provided with matching threaded holes, and the nest cover 20 and the nest base 10 are fixed together by sequentially penetrating through the matching threaded holes and the threaded holes through threaded fasteners, which is not shown in the figure.

The position department that corresponds spout 12 in nest lid 20 bottom of this embodiment is equipped with the restriction annular 21 with gleitbretter 40 looks adaptation, nest lid 20 bottom is equipped with the guide block 42 sliding fit in the middle part of gleitbretter 40 and suspends the groove 22 of hanging of gleitbretter 40 in midair, can guarantee like this that the gleitbretter 40 plane is rotatory and be difficult for floating and sinking translocation from top to bottom and influence the assembly counterpoint, also does benefit to the structural stability and the anti-wind ability of rib 80 and last nest under the reinforcing hanging dress user state simultaneously. Specifically, the method comprises the following steps: the cross section of the hanging groove 22 is in a circular ring shape or a sector ring shape, the longitudinal section of the hanging groove is a dovetail groove with a wide top and a narrow bottom, the guide block 42 in the middle of the sliding piece 40 is a dovetail block matched with the dovetail groove, and the dovetail block preferably has elasticity. If the guide blocks 42 and nest 10 are both rigid, it is contemplated that the nest cover 20 may be constructed from multiple individual cover pieces that are assembled in sequence after the slides 40 are installed.

In addition, a pull-up space 23 reserved for the pull-up adjustment position of the operation round piece 30 is arranged between the position of the bottom of the nest cover 20 corresponding to the operation round piece 30 and the operation round piece 30.

The upper end of the operation circular piece 30 penetrates through the nest cover 20, a cylindrical piece on the upper portion of the operation circular piece 30 transversely penetrates through and is provided with a clamping hole 35 used for penetrating and blocking a nail and clamping the middle rod 90, the clamping hole 35 or the nail is used for enabling the operation circular piece 30 to be fixed on the middle rod 90, stability is enhanced by matching with a bearing inner piece 33, the umbrella rib 80 is prevented from falling off due to the fact that the operation circular piece 30 rotates accidentally in the using process, safety is improved, the position change of the second driving portion 32 after plane rotation can be indicated by setting the initial position of the clamping hole 35 corresponding to the second driving portion 32, the axial direction of the clamping hole 35 is parallel to the long axis direction of the shifting lever, and an angle scale can be arranged on the top surface of the nest cover 20 for convenience. In addition, the part of the operating circular element 30 protruding upwards relative to the nest cover 20 is provided with an external thread and is in threaded fit with an umbrella cap 60, and the bottom end of the umbrella cap 60 and the inner circumference of the umbrella cover are pressed against the top surface of the nest cover 20.

In this embodiment, the upper nest further comprises a limiting sleeve 70, the limiting sleeve 70 is fixedly connected to the bottom of the nest 10, the limiting sleeve 70 has a vertically through sleeve hole therein and is coaxially communicated with the seat hole 11 of the nest 10, and the limiting sleeve 70 is fixed with the middle rod 90 through another stop pin.

As shown in fig. 1-2, the process for assembling and disassembling the upper nest structure and the umbrella ribs 80 of the present invention comprises an integral assembling process for assembling all umbrella ribs and a single rib disassembling and replacing process for independently disassembling and reassembling the umbrella ribs from the upper nest, wherein the integral assembling process comprises the following specific steps:

1. prefabricating an operation round piece 30, a sliding sheet 40, a nest cover 20, a limiting sleeve 70 and a nest seat 10 according to a design drawing, installing an elastic piece 50 at the bottom of a bearing inner piece 33 of the operation round piece 30 to form a second assembly, uniformly arranging a first driving part 31 at the upper part of the outer wall of the operation round piece 30 in the circumferential direction, and convexly arranging a second driving part 32 at the lower part of the outer wall of the operation round piece 30; the edge of the top of the nest seat 10 is uniformly provided with a containing groove 13 along the circumferential direction, a process groove 14 is processed in the containing groove 13, and the assembled limiting sleeve 70 and the nest seat 10 are used as a first assembly; a hanging groove 22 and a limiting ring groove 21 are processed on the bottom surface of the nest cover 20;

2. vertically fixing a middle rod 90 on a horizontal table which is provided with a tool, wherein the horizontal table is provided with a circular groove which is concentric with the middle rod 90 and radial process grooves which are uniformly radiated by taking the circular groove as a circle center and are matched with the containing grooves 13 in number, then sleeving a first assembly part into the middle rod 90 from top to bottom and enabling the nest bases 10 to be matched and placed in the circular groove on the horizontal table, and the containing grooves 13 respectively radially correspond to the radial process grooves and are fixed through a first clamping mechanism on the tool;

3. sleeving the second assembly part into the middle rod 90 from top to bottom, fixedly installing the second assembly part in the center of the top of the nest seat 10 after the clamping hole 35 on the operation circular part 30 corresponds to the middle rod 90, enabling the first driving parts 31 on the operation circular part 30 to be respectively on angular bisectors between the central lines of two circumferentially adjacent accommodating grooves 13, and then pressing down the operation circular part 30 by using a second clamping mechanism on the tool and limiting the plane rotation of the operation circular part 30;

4. the driven part 41 of the slide sheet 40 is arranged corresponding to the first driving part 31, the outer end of the slide sheet 40 is arranged corresponding to the slide groove 12 from top to bottom, at the moment, because the operation round piece 30 is not moved and the first driving part 31 is matched with the driven part 41, each slide sheet 40 can not be displaced under the condition of external force which is not enough to overcome the clamping action force or no external force action;

5. the connecting positions of the nest seat 10 and the nest cover 20 are well corresponded, the hanging groove 22 at the bottom of the nest cover 20 is pressed in corresponding to the guide block 42 in the middle of the sliding sheet 40, and the nest cover 20 is installed after all the hanging grooves are pressed in place;

6. inserting prefabricated umbrella ribs 80 into the accommodating grooves 13 along the radial process groove, wherein the inner ends of the umbrella ribs 80 are inserted into the process grooves 14 in a matching manner and are tightly abutted, and the pin joint holes at the inner ends of the umbrella ribs 80 are ensured to correspond to the sliding grooves 12 at the corresponding positions;

7. the second clamping mechanism is cancelled, the plane of the operation circular member 30 is manually or mechanically rotated by a designated angle A under the state of keeping the plane downwards pressed, then the outer ends of the sliding pieces 40 respectively penetrate through the pivot holes at the inner ends of the umbrella ribs 80, the operation circular member 30 returns to the initial height under the upward restoring force of the elastic piece 50 after the downwards pressing force is cancelled, the initial height is that the driven part 41 of the sliding piece 40 is separated from the first driving part 31, the middle part of the smooth surface of the outer wall of the operation circular member 30 is opposite to the sliding piece 40, then the plane is reversely rotated by the designated angle A, so that the second driving part 32 on the operation circular member 30 is below one side of one sliding piece 40 pointed by the clamping hole 35, the blocking nail is driven into the clamping hole 35 to limit the plane rotation of the operation circular member 30 to finish the assembly of the umbrella ribs 80 and the upper nest.

After the ribs 80 are assembled with the upper nest and then the whole frame of the ribs 80 is assembled, the umbrella cap 60 is screwed on the upper end of the operating circular member 30 after covering the umbrella surface and the umbrella cap 60 presses the umbrella surface against the top surface of the nest cover 20. If a certain rib 80 needs to be repaired or replaced in the using process of the umbrella, the single rib replacing process specifically comprises the following steps: the blocking nails on the umbrella cap 60 and the blocking hole 35 are sequentially taken away, the operation round piece 30 is firstly rotated in a plane to enable the second driving part 32 to rotate to one side of the side face of the target sliding piece 40, then the operation round piece 30 is lifted up to enable the second driving part 32 to be attached to the target sliding piece 40, then the plane is rotated by a designated angle B under the condition of keeping the pull-up state, the target sliding piece 40 is separated from the target umbrella rib 80, the plane is loosened to the initial position, and then the blocking nails are used for locking again. When a new single umbrella rib 80 is installed, the inner end of the umbrella rib 80 is inserted into the technical groove 14 in a matching manner and is tightly abutted, the blocking nail is removed, the operation round piece 30 is firstly rotated in a plane to enable the second driving part 32 to rotate to the other side of the side face of the target sliding piece 40, then the operation round piece 30 is lifted up to enable the second driving part 32 to be attached to the target sliding piece 40, the plane is rotated by a designated angle C under the condition of keeping the pull-up state, the outer end of the target sliding piece 40 is enabled to penetrate into the pivoting hole of the new umbrella rib 80, finally, the blocking nail is released and then locked again after the plane is rotated to the.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.