Multi-folding umbrella rib and preparation process thereof

Abstract

The invention discloses a multi-folding umbrella rib and a preparation process thereof in the technical field of umbrella ribs, the multi-folding umbrella rib comprises an umbrella rod and a sleeve slidably sleeved on the umbrella rod, the umbrella rod is provided with a locking piece acting on the sleeve and locking or unlocking the sleeve, the umbrella rod and the sleeve are both provided with umbrella trays, and the umbrella trays are provided with an opening. A plurality of frameworks are detachably arranged between the two umbrella discs, each framework comprises two first umbrella ribs which are hinged through rivets, folding parts are arranged on the two first umbrella ribs, and umbrella rib pins are arranged at the free ends of the first umbrella ribs; the umbrella disc comprises a bottom shell and a top cover which are detachably connected, a plurality of U-shaped grooves are formed in the bottom shell and the top cover, a plurality of containing grooves are formed in the bottom shell, the containing grooves and the U-shaped grooves are communicated through inserting grooves, first umbrella ribs and umbrella rib pins are matched with the U-shaped grooves and the inserting grooves in an inserting mode respectively, and a plurality of locking mechanisms are arranged on the top cover. The locking mechanism comprises an elastic piece which is arranged on the top cover in a sliding mode and is in abutting lap joint with the umbrella rib pin.

Description

Technical Field

[0001] The invention relates to the technical field of umbrella ribs, in particular to a multi-fold umbrella rib and a preparation process thereof. Background Art

[0002] Umbrella ribs are the skeleton structure that supports the umbrella canvas, usually made of materials such as metal or fiberglass. The number and material of the ribs will affect the sturdiness, wind resistance and smoothness of opening and closing of the umbrella. Multi-fold umbrella ribs refer to a design in which the umbrella ribs can be folded multiple times. Compared with traditional straight umbrellas or umbrella ribs with fewer folding times, multi-fold umbrella ribs have the advantages of strong portability and space saving. Multi-fold umbrella ribs mainly include an umbrella pole and a sleeve slidably mounted on the umbrella pole. Umbrella plates are provided on the umbrella pole and the sleeve. Multiple frames are arranged between the two umbrella plates. The frames can be folded multiple times by sliding the sleeve to realize opening and closing of the umbrella.

[0003] In the prior art, the frame and the umbrella disc are mostly fixed by iron wires. During installation, the iron wires are passed through the through holes on the multiple frames in turn and tightened on the umbrella disc to fix the multiple frames. During disassembly, the iron wires are loosened and withdrawn from the through holes on the multiple frames in turn to separate the multiple frames. The installation and disassembly of the frame and the umbrella disc are relatively troublesome.

[0004] The existing public patent CN106858954B discloses a quick-install umbrella plate and a connection structure between an umbrella rib and an umbrella plate, comprising an umbrella plate seat and an umbrella plate cover that are mutually matched and connected, wherein the umbrella plate seat is evenly spaced along its outer edge with a plurality of mounting grooves extending inwardly, a receiving cavity located in the umbrella plate seat is provided between adjacent mounting grooves, mounting openings that penetrate the adjacent mounting grooves are respectively provided on the walls on opposite sides of the receiving cavity, spring pieces adjacent to the mounting openings are positioned and connected in the receiving cavity, the spring pieces and the mounting openings are correspondingly combined to form an insertion interface connected to the outside world and a locking interface for locking the umbrella ribs, the umbrella ribs are inserted along the insertion interface and squeeze the spring pieces into the locking interface to form a locking connection, when the technical scheme is implemented, when the parasol ribs and the umbrella plate are installed, the umbrella plate does not need to be disassembled first and then assembled, and the lock can be directly pressed, and the assembly and installation are quick and easy to operate.

[0005] Although the above patent solves the problem of troublesome installation between the frame and the umbrella plate, the ribs are difficult to disassemble from the umbrella plate, and it is impossible to disassemble a single rib.

[0006] In order to solve the above problems, the present application proposes a multi-fold umbrella rib and a preparation process thereof. Summary of the invention

[0007] The purpose of the present invention is to solve the technical problems that the installation and disassembly of the frame and the umbrella plate are troublesome, the ribs are difficult to disassemble from the umbrella plate, and a single rib cannot be disassembled. The present invention provides a multi-fold umbrella rib and a preparation process thereof.

[0008] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A multi-fold umbrella rib, comprising an umbrella rod and a sleeve slidably mounted thereon, the umbrella rod being provided with a locking member for acting on the sleeve and locking or unlocking it, the umbrella rod and the sleeve being provided with umbrella plates, and a plurality of ribs being detachably mounted between two umbrella plates; The frame comprises two first ribs hingedly connected by rivets, the two first ribs are provided with folding parts, and the free ends of the first ribs are provided with rib pins; The umbrella plate includes a bottom shell and a top cover that are detachably connected, and a plurality of U-shaped grooves are constructed on the bottom shell and the top cover. A plurality of accommodating grooves are constructed on the bottom shell, and the accommodating grooves are connected to the U-shaped grooves through plug-in grooves. The first rib and the rib pin are respectively plugged and matched with the U-shaped groove and the plug-in groove. A plurality of locking mechanisms are arranged on the top cover, and the locking mechanisms include an elastic member that is slidably arranged on the top cover and abuts and overlaps with the rib pin. A locking portion that acts on the elastic member and locks or unlocks it is arranged on the top cover.

[0009] Furthermore, the locking piece includes a storage groove opened on the umbrella pole, the sleeve is constructed with a locking hole connected to the storage groove, a limit rod is slidably arranged in the storage groove, the free end of the limit rod is provided with a wedge block plug-fitting with the locking hole, and a compression spring sleeved on the limit rod is provided between the wedge block and the storage groove.

[0010] Furthermore, the sleeve is provided with an articulated seat, a pressing rod is hinged on the articulated seat and a first torsion spring is provided between the two, and the pressing rod is provided with a convex block which abuts and overlaps with the wedge block.

[0011] Furthermore, a positioning hole is constructed in the receiving groove, a plurality of spring sheets are arranged on the top cover, and a protrusion is arranged on the spring sheet. The protrusion is overlapped with the bottom shell and plugged into the positioning hole.

[0012] Furthermore, a plurality of mounting holes are constructed on the top cover, and a fixing column plugged into and matched with the mounting holes is arranged in the receiving groove.

[0013] Furthermore, two grooves are symmetrically constructed in the U-shaped groove on the bottom shell, and a plurality of balls are movably embedded in the grooves and are all rollingly overlapped with the first umbrella ribs.

[0014] Furthermore, the elastic member comprises a slide rod slidably arranged on the top cover, a triangular block which overlaps with the rib pin is arranged at the free end of the slide rod, and a return spring which is sleeved on the slide rod is arranged between the triangular block and the top cover.

[0015] Furthermore, the locking part includes a fixed block arranged on the top cover, a locking groove is constructed on the fixed block, a locking rod is hinged on the top cover and a second torsion spring is arranged between the two, the locking rod is in contact with and overlaps the sliding rod, and the free end of the locking rod is provided with an elastic sheet that is in contact with and overlaps the fixed block and is plugged into and cooperates with the locking hole.

[0016] Further, the folding portion includes a second rib, wherein a third rib and a fourth rib are hinged to one of the first ribs via rivets, a fifth rib is hinged to another of the first ribs via rivets, free ends of the third rib and the fourth rib are hinged to the second rib via rivets, and the free end of the fifth rib is hinged to the third rib via rivets.

[0017] The preparation process of the multi-fold umbrella rib is used to prepare the multi-fold umbrella rib, comprising the following steps: S1: forming an umbrella rod, a sleeve, two umbrella plates and a plurality of frames through mold processing, fixing a limit rod and a wedge block, sleeve a compression spring on the limit rod, and slidingly setting the limit rod in the storage groove; S2: insert the two first ribs of the frame into the U-shaped grooves on the two bottom shells respectively, insert the rib pins into the insertion grooves, install the two top covers onto the two bottom shells respectively, and overlap the rib pins with the triangular blocks and limit the rib pins so that the rib pins cannot exit the insertion grooves, thereby achieving installation and fixation of the frame and the umbrella plate; S3: fix the bottom shell of one of the umbrella plates on the umbrella pole, fix the sleeve and the bottom shell of the other umbrella plate and slide them together on the umbrella pole.

[0018] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the method of fixing the frame and the umbrella plate by iron wire in the prior art is abandoned, and the overall installation and disassembly of multiple frames are convenient, and the disassembly and installation of a single frame are also convenient, so it is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the structure of the present invention; Figure 2 It is a three-dimensional diagram of the skeleton structure of the present invention; Figure 3 It is a three-dimensional diagram of the umbrella pole and sleeve structure of the present invention; Figure 4 For the present invention Figure 3 A three-dimensional cross-sectional view of Figure 5For the present invention Figure 4 The enlarged view of point A in the middle; Figure 6 It is an exploded perspective view of a part of the structure of the present invention; Figure 7 For the present invention Figure 6 A three-dimensional cross-sectional view of Figure 8 For the present invention Figure 7 The enlarged view of point B in the middle; Fig. 9 For the present invention Figure 7 Enlarged view of point C in the middle; Fig.10 For the present invention Figure 7 Enlarged view of point D in the middle.

[0020] In the figure: 1. umbrella pole; 2. sleeve; 3. first umbrella rib; 4. umbrella rib pin; 5. bottom shell; 6. top cover; 7. U-shaped groove; 8. accommodating groove; 9. plug-in groove; 10. storage groove; 11. locking hole; 12. limit rod; 13. wedge block; 14. compression spring; 15. hinge seat; 16. pressing rod; 17. first torsion spring; 18. bump; 19. positioning hole; 20. spring piece; 21. raised part; 22. mounting hole; 23. fixing column; 24. groove; 25. ball; 26. slide rod; 27. triangular block; 28. reset spring; 29. ​​fixing block; 30. locking groove; 31. locking rod; 32. second torsion spring; 33. elastic sheet; 34. second umbrella rib; 35. third umbrella rib; 36. fourth umbrella rib; 37. fifth umbrella rib. DETAILED DESCRIPTION

[0021] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] The present embodiment provides a multi-fold umbrella rib and its preparation process, which is mainly used to solve the technical problems that the installation and disassembly of the frame and the umbrella plate are troublesome, the umbrella ribs are difficult to disassemble from the umbrella plate, and the single umbrella rib cannot be disassembled, and provides the following technical solutions. Figure 1-Figure 10 Make a detailed description: A multi-fold umbrella rib comprises an umbrella pole 1 and a sleeve 2 slidably sleeved thereon, the umbrella pole 1 is in a vertical direction, the sleeve 2 is slidably sleeved thereon along the length direction of the umbrella pole 1, a locking member is provided on the umbrella pole 1 to act on the sleeve 2 and lock or unlock it, when the umbrella is opened, the sleeve 2 is locked by the locking member, and when the umbrella is closed, the sleeve 2 is unlocked by the locking member, the umbrella pole 1 and the sleeve 2 are both provided with umbrella plates, the umbrella plates are in a horizontal direction, and a plurality of skeletons are detachably provided between the two umbrella plates, The frame includes two first ribs 3 hingedly connected by rivets, wherein the end of one first rib 3 is hingedly connected to the middle of the other first rib 3, and the two first ribs 3 are provided with folding parts, which can realize multiple folding of the frame, and the free end of the first rib 3 is provided with a rib pin 4, which is horizontally fixed to the free end of the first rib 3; The umbrella plate includes a detachably connected bottom shell 5 and a top cover 6. A plurality of U-shaped grooves 7 are constructed on the bottom shell 5 and the top cover 6. The plurality of U-shaped grooves 7 are arranged in a circular array. A plurality of accommodating grooves 8 are constructed on the bottom shell 5. The plurality of accommodating grooves 8 are arranged in a circular array. The accommodating grooves 8 are connected to the U-shaped grooves 7 through plug-in grooves 9. The first rib 3 and the rib pin 4 are respectively plugged and matched with the U-shaped groove 7 and the plug-in groove 9. A plurality of locking mechanisms are arranged on the top cover 6. The locking mechanisms include an elastic member slidably arranged on the top cover 6 and abutting against and overlapping the rib pin 4. The elastic member slides in a vertical direction. A locking portion acting on the elastic member and locking or unlocking it is arranged on the top cover 6. When the umbrella is opened, the two first ribs 3 of the frame are respectively inserted into the U-shaped grooves 7 on the two bottom shells 5, and the rib pins 4 are inserted into the insertion grooves 9. The two top covers 6 are respectively installed on the two bottom shells 5. The elastic member contacts and overlaps with the rib pins 4 and limits the rib pins 4 so that the rib pins 4 cannot withdraw from the insertion grooves 9, so as to realize the installation and fixation of the frame and the umbrella plate. The bottom shell 5 of one of the umbrella plates is fixed on the umbrella pole 1, and the sleeve 2 and the bottom shell 5 of the other umbrella plate are slidably sleeved on the umbrella pole 1 together. When in use, the sleeve 2 is slid upward, driving the corresponding umbrella plate to slide upward together. The frame is folded multiple times by sliding the sleeve 2 to realize opening the umbrella. Then the sleeve 2 is locked by the locking member. Conversely, the sleeve 2 is unlocked by the locking member, so that the sleeve 2 slides downward, driving the corresponding umbrella plate to slide downward together. When the umbrella is folded, the two top covers 6 are removed from the two bottom shells 5 respectively, and the elastic member moves with the top cover 6 and moves away from the umbrella rib pin 4, and the limit of the umbrella rib pin 4 is released, so that the umbrella rib pin 4 can be withdrawn from the insertion groove 9. When a single frame needs to be disassembled, the elastic member is unlocked by the locking part, the elastic member is reset to the natural state and slides to the limit position, the elastic member is away from the umbrella rib pin 4, and the limit of the umbrella rib pin 4 is released, so that the umbrella rib pin 4 can be withdrawn from the insertion groove 9. Conversely, when a single frame needs to be installed, the two first umbrella ribs 3 of the frame are respectively inserted into the U-shaped grooves 7 on the two bottom shells 5, and the umbrella rib pin 4 is inserted into the insertion groove 9. The elastic member is locked by the locking part, and the elastic member slides to the initial position and is in a stretched state. The elastic member contacts and overlaps with the umbrella rib pin 4 and limits the umbrella rib pin 4, so that the umbrella rib pin 4 cannot be withdrawn from the insertion groove 9. In summary, the present application abandons the method of fixing the frame and the umbrella plate by wire in the prior art, and the overall installation and disassembly of multiple frames are convenient, and the disassembly and installation of a single frame are also convenient, so it is more practical.

[0023] like Figure 4-Figure 5 As shown, in this embodiment, the locking member includes a storage groove 10 provided on the umbrella rod 1, a locking hole 11 connected to the storage groove 10 is configured on the sleeve 2, a limit rod 12 is slidably arranged in the storage groove 10, the limit rod 12 slides in the horizontal direction, a wedge block 13 plug-fitted with the locking hole 11 is arranged at the free end of the limit rod 12, a compression spring 14 sleeved on the limit rod 12 is arranged between the wedge block 13 and the storage groove 10, and the compression spring 14 is in the horizontal direction; Referring to the above, in the initial state, the limiting rod 12 and the wedge block 13 are both in the initial position, the compression spring 14 is in the natural state, and the wedge block 13 is partially located outside the receiving groove 10. When the umbrella is opened, the sleeve 2 slides upward, driving the corresponding umbrella plate to slide upward together, and the umbrella plate and the sleeve 2 successively contact and overlap with the inclined surface of the wedge block 13. Through the transition effect of the inclined surface, the wedge block 13 and the limiting rod 12 are forced to move together, and the wedge block 13 is completely retracted into the receiving groove 10, and the compression spring 14 is squeezed. When the locking hole 11 is connected with the receiving groove 10, the compression spring 14 is reset to the natural state, and the wedge block 13 and the limiting rod 12 are in the natural state. The rod 12 moves to the initial position together, and the wedge block 13 is plugged into the locking hole 11. Due to the obstruction of the wedge block 13, the sleeve 2 cannot slide, so as to lock the sleeve 2. On the contrary, when the umbrella is folded, the wedge block 13 is pressed to make the wedge block 13 and the limiting rod 12 move together, the wedge block 13 withdraws from the locking hole 11 and is completely retracted into the receiving groove 10, the compression spring 14 is squeezed, and the sleeve 2 is able to slide due to the loss of the obstruction of the wedge block 13, so as to unlock the sleeve 2. Then, the wedge block 13 is released, the compression spring 14 is reset to a natural state, and the wedge block 13 and the limiting rod 12 move to the initial position together.

[0024] like Figure 5 As shown, in this embodiment, a hinge seat 15 is provided on the sleeve 2, the hinge seat 15 is horizontal and fixed on the sleeve 2, a pressing rod 16 is hinged on the hinge seat 15, and a first torsion spring 17 is provided between the two, the first torsion spring 17 is horizontal and the two ends are respectively fixedly connected to the hinge seat 15 and the pressing rod 16, and the pressing rod 16 is provided with a convex block 18 that contacts and overlaps with the wedge block 13, and the convex block 18 is fixed on the pressing rod 16; Referring to the above, in the initial state, the pressing rod 16 and the protrusion 18 are both in the initial positions, and the first torsion spring 17 is in the natural state. When folding the umbrella, pressure is applied to the pressing rod 16 to rotate the pressing rod 16, driving the protrusion 18 to enter the locking hole 11 and contact and overlap with the wedge block 13, forcing the wedge block 13 to slide to the initial position and exit the locking hole 11, and the first torsion spring 17 is squeezed, and then the pressing rod 16 is released, and the first torsion spring 17 is reset to the natural state, the pressing rod 16 rotates to the initial position and drives the protrusion 18 to exit the locking hole 11, and the wedge block 13 slides to the initial position, making it more convenient to fold the umbrella.

[0025] like Figure 7-Figure 8 As shown, in this embodiment, a positioning hole 19 is configured in the receiving groove 8, and a plurality of spring pieces 20 are provided on the top cover 6. The spring pieces 20 are in a vertical direction and fixed on the top cover 6. A protrusion 21 is provided on the spring piece 20. The protrusion 21 is triangular in structure. The protrusion 21 is in contact with and overlaps the bottom shell 5 and is plugged into and matched with the positioning hole 19. With reference to the above, in the initial state, the spring piece 20 is in a natural state, and the protrusion 21 is in an initial position. When the top cover 6 is installed on the bottom shell 5, the top cover 6 and the bottom shell 5 are in contact and overlapped, and the spring piece 20 and the protrusion 21 enter the accommodating groove 8 together, and the protrusion 21 and the bottom shell 5 are in contact and overlapped. Through the transition effect of the inclined surface, the protrusion 21 and the spring piece 20 are forced to move together, and the spring piece 20 is in an extruded state, and the protrusion 21 moves to the extreme position. Thereafter, the spring piece 20 is reset to a natural state, driving the protrusion 21 to move to the initial position and inserted into the positioning hole 19. Due to the obstruction of the protrusion 21, the top cover 6 cannot be separated from the bottom shell 5 to achieve the installation and fixation of the top cover 6 and the bottom shell 5. Conversely, the protrusion 21 is pressed to make the protrusion 21 move to the extreme position and withdraw from the positioning hole 19. The spring piece 20 is in an extruded state. Due to the loss of the obstruction of the protrusion 21, the top cover 6 can be separated from the bottom shell 5.

[0026] like Figure 8-Figure 9 As shown, in this embodiment, a plurality of mounting holes 22 are constructed on the top cover 6, and a fixing column 23 plugged with the mounting holes 22 is provided in the receiving groove 8, and the fixing column 23 is vertically oriented and fixed in the receiving groove 8; Referring to the above, when the top cover 6 is installed on the bottom shell 5, the fixing column 23 corresponds to and is inserted into the mounting hole 22 to achieve rapid positioning of the top cover 6, making installation and fixation more convenient. Conversely, when the top cover 6 is separated from the bottom shell 5, the fixing column 23 withdraws from the mounting hole 22.

[0027] like Figure 8As shown, in this embodiment, two grooves 24 are symmetrically constructed in the U-shaped groove 7 on the bottom shell 5, and a plurality of balls 25 are movably embedded in the grooves 24 and are all rolled and overlapped with the first rib 3. A plurality of embedding grooves are constructed in the grooves 24, and the balls 25 are movably embedded in the embedding grooves and cannot be withdrawn from the embedding grooves; With reference to the above, when the umbrella is opened and closed, the first rib 3 and the plurality of balls 25 are rolled and overlapped, and the friction between the first rib 3 and the bottom shell 5 is reduced by the balls 25, thereby improving the smoothness of opening and closing the umbrella.

[0028] like Fig. 9 As shown, in this embodiment, the elastic member includes a slide bar 26 slidably arranged on the top cover 6, the slide bar 26 slides in the vertical direction, the free end of the slide bar 26 is provided with a triangular block 27 that abuts and overlaps with the rib pin 4, the triangular block 27 is fixedly arranged at the free end of the slide bar 26, and a return spring 28 sleeved on the slide bar 26 is arranged between the triangular block 27 and the top cover 6, the return spring 28 is in the vertical direction and the two ends are respectively fixedly connected to the triangular block 27 and the top cover 6; Referring to the above, in the initial state, the slide bar 26 and the triangular block 27 are both in the initial position, the return spring 28 is in the stretched state, and the slide bar 26 is locked by the locking portion. When the top cover 6 is installed on the bottom shell 5, the plane of the triangular block 27 contacts and overlaps the rib pin 4. Due to the limitation of the triangular block 27, the rib pin 4 cannot withdraw from the insertion groove 9. When the top cover 6 is separated from the bottom shell 5, the triangular block 27 is away from the rib pin 4. Due to the loss of the limitation of the triangular block 27, the rib pin 4 can withdraw from the insertion groove 9. When it is necessary to disassemble a single frame, the slide bar 26 is locked by the locking portion. 6 is unlocked, the reset spring 28 is reset to the natural state, the slide bar 26 and the triangular block 27 move upward to the limit position together, the triangular block 27 moves away from the rib pin 4, the limit on the rib pin 4 is released, and the rib pin 4 is withdrawn from the insertion slot 9. Conversely, when a single frame needs to be installed, the rib pin 4 is inserted into the insertion slot 9, the slide bar 26 is locked by the locking part, the slide bar 26 and the triangular block 27 move downward to the initial position together, the reset spring 28 is stretched, the triangular block 27 contacts and overlaps the rib pin 4 and limits the rib pin 4, so that the rib pin 4 cannot withdraw from the insertion slot 9.

[0029] like Figure 9-10 As shown, in this embodiment, the locking portion includes a fixed block 29 arranged on the top cover 6, the fixed block 29 is fixedly arranged on the top cover 6, a locking groove 30 is constructed on the fixed block 29, a locking rod 31 is hinged on the top cover 6 and a second torsion spring 32 is arranged between the two, the second torsion spring 32 is in a horizontal direction and the two ends are respectively fixedly connected to the top cover 6 and the locking rod 31, the locking rod 31 is in contact with and overlaps the sliding rod 26, and the free end of the locking rod 31 is provided with an elastic sheet 33 which is in contact with and overlaps the fixed block 29 and is plugged into the locking hole 11, and the elastic sheet 33 includes a straight section and an acute angle section, and the acute angle section can be elastically deformed; Referring to the above, in the initial state, the locking rod 31 is horizontal and overlaps with the sliding rod 26, the second torsion spring 32 is in a squeezed state, the elastic sheet 33 is in a natural state and the acute angle section is inserted into the locking groove 30, through the cooperation of the elastic sheet 33 and the locking groove 30, the locking rod 31 cannot be rotated, the second torsion spring 32 cannot be reset to the natural state, and the sliding rod 26 cannot slide, so as to lock the sliding rod 26; conversely, the acute angle section of the elastic sheet 33 is pressed, the acute angle section is elastically deformed and withdraws from the locking groove 30, and the second torsion spring 33 is pressed. The spring 32 is reset to a natural state, and the locking rod 31 is rotated to a vertical direction. Due to the loss of the obstruction of the locking rod 31, the slide bar 26 can slide upward to the extreme position to unlock the slide bar 26. When the slide bar 26 needs to be locked, the locking rod 31 is driven to rotate to a horizontal direction, forcing the slide bar 26 to slide downward to the initial position. The second torsion spring 32 is squeezed, and the acute angle segment first contacts and overlaps with the fixed block 29. Through the transition effect of the inclined surface, the acute angle segment is forced to undergo elastic deformation, and then the acute angle segment is reset to a natural state and inserted into the locking groove 30.

[0030] like Figure 2 As shown, in this embodiment, the folding portion includes a second rib 34, a third rib 35 and a fourth rib 36 are hinged to one of the first ribs 3 through rivets, a fifth rib 37 is hinged to another first rib 3 through rivets, the free ends of the third rib 35 and the fourth rib 36 are hinged to the second rib 34 through rivets, and the free end of the fifth rib 37 is hinged to the third rib 35 through rivets; Referring to the above, in the initial state, the first rib 3, the second rib 34, the third rib 35, the fourth rib 36 and the fifth rib 37 are all in a vertical direction. When the umbrella is opened, one of the first rib 3, the fifth rib 37 and the second rib 34 is rotated to a horizontal direction, and the other first rib 3, the third rib 35 and the fourth rib 36 are rotated to an inclined direction. When the umbrella is closed, the first rib 3, the second rib 34, the third rib 35, the fourth rib 36 and the fifth rib 37 are all rotated to a vertical direction to achieve multiple folding of the frame.

[0031] The preparation process of the multi-fold umbrella rib is used to prepare the multi-fold umbrella rib, comprising the following steps: S1: The umbrella rod 1, the sleeve 2, two umbrella plates and a plurality of frames are formed by mold processing, the limiting rod 12 and the wedge block 13 are fixed, the compression spring 14 is sleeved on the limiting rod 12, and the limiting rod 12 is slidably set in the storage groove 10; S2: Insert the two first ribs 3 of the frame into the U-shaped grooves 7 on the two bottom shells 5 respectively, insert the rib pins 4 into the insertion grooves 9, install the two top covers 6 onto the two bottom shells 5 respectively, and the triangular blocks 27 contact and overlap with the rib pins 4 and limit the rib pins 4 so that the rib pins 4 cannot exit the insertion grooves 9, so as to realize the installation and fixation of the frame and the umbrella plate; S3: fix the bottom shell 5 of one of the umbrella plates on the umbrella pole 1, fix the sleeve 2 and the bottom shell 5 of the other umbrella plate and slide them together on the umbrella pole 1.

[0032] The working process of the present invention is as follows: during installation, the two first ribs 3 of the skeleton are respectively inserted into the U-shaped grooves 7 on the two bottom shells 5, the rib pins 4 are inserted into the insertion grooves 9, and the two top covers 6 are respectively installed on the two bottom shells 5. The elastic member contacts and overlaps with the rib pins 4 and limits the rib pins 4, so that the rib pins 4 cannot withdraw from the insertion grooves 9, so as to realize the installation and fixation of the skeleton and the umbrella plate, fix the bottom shell 5 of one of the umbrella plates on the umbrella pole 1, and slide the sleeve 2 and the bottom shell 5 of the other umbrella plate together on the umbrella pole 1. When in use, the sleeve 2 is slid upward, driving the corresponding umbrella plate to slide upward together, and the skeleton is folded multiple times by sliding the sleeve 2 to realize opening the umbrella, and then the sleeve 2 is locked by the locking member. Conversely, the sleeve 2 is unlocked by the locking member, and the sleeve 2 is slid downward, driving the corresponding umbrella plate to slide downward together, and the skeleton is folded multiple times by sliding the sleeve 2. When the umbrella is folded, the two top covers 6 are removed from the two bottom shells 5 respectively, and the elastic member moves with the top cover 6 and moves away from the rib pin 4, releasing the limit on the rib pin 4, so that the rib pin 4 can be withdrawn from the insertion groove 9. When a single frame needs to be disassembled, the elastic member is unlocked by the locking part, the elastic member is reset to the natural state and slides to the extreme position, the elastic member moves away from the rib pin 4, releasing the limit on the rib pin 4, so that the rib pin 4 can be withdrawn from the insertion groove 9. Conversely, when a single frame needs to be installed, the two first ribs 3 of the frame are respectively inserted into the U-shaped grooves 7 on the two bottom shells 5, and the rib pin 4 is inserted into the insertion groove 9. The elastic member is locked by the locking part, and the elastic member slides to the initial position and is in a stretched state. The elastic member contacts and overlaps the rib pin 4 and limits the rib pin 4, so that the rib pin 4 cannot be withdrawn from the insertion groove 9.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-fold umbrella rib, comprising an umbrella rod (1) and a sleeve (2) slidably mounted thereon, the umbrella rod (1) being provided with a locking member for acting on the sleeve (2) and locking or unlocking the sleeve, the umbrella rod (1) and the sleeve (2) being both provided with umbrella plates, a plurality of frames being detachably arranged between two umbrella plates, characterized in that: The frame comprises two first ribs (3) hingedly connected by rivets, the two first ribs (3) being provided with folding portions, and the free ends of the first ribs (3) being provided with rib pins (4); The umbrella tray comprises a bottom shell (5) and a top cover (6) which are detachably connected, the bottom shell (5) and the top cover (6) are both provided with a plurality of U-shaped grooves (7), the bottom shell (5) is provided with a plurality of accommodating grooves (8), the accommodating grooves (8) are connected to the U-shaped grooves (7) via plug-in grooves (9), the first rib (3) and the rib pin (4) are respectively plugged into the U-shaped grooves (7) and the plug-in grooves (9), the top cover (6) is provided with a plurality of locking mechanisms, the locking mechanisms comprising elastic members which are slidably provided on the top cover (6) and which are in contact with and overlap the rib pins (4), and the top cover (6) is provided with a locking portion which acts on the elastic members and locks or unlocks the elastic members.

2. The multi-fold umbrella rib according to claim 1, characterized in that: The locking member comprises a receiving groove (10) formed on the umbrella rod (1); the sleeve (2) is provided with a locking hole (11) connected to the receiving groove (10); a limiting rod (12) is slidably arranged in the receiving groove (10); a wedge block (13) plug-fitting with the locking hole (11) is arranged at the free end of the limiting rod (12); and a compression spring (14) sleeved on the limiting rod (12) is arranged between the wedge block (13) and the receiving groove (10).

3. The multi-fold umbrella rib according to claim 2, characterized in that: The sleeve (2) is provided with an articulated seat (15), a pressing rod (16) is hingedly connected to the articulated seat (15), and a first torsion spring (17) is provided between the two, and the pressing rod (16) is provided with a protrusion (18) that abuts and overlaps with the wedge block (13).

4. The multi-fold umbrella rib according to claim 1, characterized in that: A positioning hole (19) is constructed in the receiving groove (8), a plurality of spring sheets (20) are provided on the top cover (6), and a protrusion (21) is provided on the spring sheet (20). The protrusion (21) is in contact with and overlaps the bottom shell (5) and is plugged into and matched with the positioning hole (19).

5. The multi-fold umbrella rib according to claim 1, characterized in that: A plurality of mounting holes (22) are formed on the top cover (6), and a fixing column (23) pluggably engaged with the mounting holes (22) is provided in the receiving groove (8).

6. The multi-fold umbrella rib according to claim 1, characterized in that: Two grooves (24) are symmetrically structured in the U-shaped groove (7) on the bottom shell (5), and a plurality of balls (25) are movably embedded in the grooves (24) and are all in rolling overlap with the first ribs (3).

7. The multi-fold umbrella rib according to claim 1, characterized in that: The elastic member comprises a slide rod (26) slidably arranged on the top cover (6); a triangular block (27) is arranged at the free end of the slide rod (26) and is in contact with and overlapped with the rib pin (4); and a return spring (28) sleeved on the slide rod (26) is arranged between the triangular block (27) and the top cover (6).

8. The multi-fold umbrella rib according to claim 7, characterized in that: The locking portion comprises a fixing block (29) arranged on the top cover (6), the fixing block (29) being provided with a locking groove (30), a locking rod (31) being hinged on the top cover (6) and a second torsion spring (32) being provided therebetween, the locking rod (31) being in contact with and overlapping the sliding rod (26), and a free end of the locking rod (31) being provided with an elastic sheet (33) which is in contact with and overlapping the fixing block (29) and is plugged into and matched with the locking hole (11).

9. The multi-fold umbrella rib according to claim 1, characterized in that: The folding portion comprises a second rib (34), wherein a third rib (35) and a fourth rib (36) are hingedly connected to one of the first ribs (3) via rivets, and a fifth rib (37) is hingedly connected to the other of the first ribs (3) via rivets, the free ends of the third rib (35) and the fourth rib (36) are both hingedly connected to the second rib (34) via rivets, and the free end of the fifth rib (37) is hingedly connected to the third rib (35) via rivets.

10. A process for preparing a multi-fold umbrella rib, used for preparing the multi-fold umbrella rib as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: forming an umbrella rod (1), a sleeve (2), two umbrella plates and a plurality of frames through mold processing, fixing a limit rod (12) and a wedge block (13), sleeve-mounting a compression spring (14) on the limit rod (12), and slidingly arranging the limit rod (12) in the storage groove (10); S2: inserting the two first ribs (3) of the frame into the U-shaped grooves (7) on the two bottom shells (5), inserting the rib pins (4) into the insertion grooves (9), installing the two top covers (6) onto the two bottom shells (5), respectively, and the triangular blocks (27) contact and overlap with the rib pins (4) and limit the rib pins (4) so ​​that the rib pins (4) cannot exit the insertion grooves (9), thereby achieving installation and fixation of the frame and the umbrella plate; S3: fixing the bottom shell (5) of one of the umbrella plates on the umbrella pole (1), fixing the sleeve (2) and the bottom shell (5) of the other umbrella plate and slidingly sleeved on the umbrella pole (1) together.

Images