Positioning device for umbrella rib installation

By designing a positioning device for umbrella rib installation, the precise positioning of the umbrella ribs is achieved by utilizing the sliding rotation of the material support platform and the baffle, which solves the problems of high difficulty in umbrella rib installation and high defect rate, and improves production efficiency.

CN224158039UActive Publication Date: 2026-04-24HUIZHOU JIZHIYUAN HARDWARE PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIZHOU JIZHIYUAN HARDWARE PROD CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing umbrella rib installation method is difficult to operate and has problems such as umbrella rib installation position deviation and high defect rate.

Method used

Design a positioning device for umbrella rib installation, including a table frame and a positioning component. The positioning component includes a base, a support platform, a stop, and an elastic element. The support platform drives the stop to slide and rotate, thereby achieving precise positioning of the umbrella rib and insertion into the umbrella seat groove.

Benefits of technology

This reduced the difficulty of installing umbrella ribs, improved production efficiency, and lowered the defect rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model aims to provide a positioning device for umbrella rib installation, which comprises a table frame and a plurality of positioning components, a center seat is arranged on the table frame, the center seat is used for placing an umbrella seat, each positioning component is arranged on the table frame, each positioning component is circumferentially distributed at equal angles relative to the center seat, each positioning component comprises a base, a material supporting table, a blocking frame and an elastic piece, the base is arranged on the table frame, a gap is formed between the base and the center base, the material supporting table is arranged on the base in a sliding mode and used for bearing umbrella ribs, the blocking frame is rotationally arranged at the end, close to the center base, of the material supporting table, the blocking frame is provided with a limiting groove used for positioning the umbrella ribs, and the two ends of the elastic piece are connected with the material supporting table and the blocking frame respectively. The material supporting table is used for driving the blocking frame to synchronously slide relative to the base to get close to the center base, when the blocking frame stretches out of the end, close to the center base, of the base, the elastic piece drives the blocking frame to rotate relative to the material supporting table, and then the umbrella ribs are separated from the limiting grooves. Therefore, the production efficiency is improved, and the defective rate is reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of umbrella manufacturing, and in particular to a positioning device for installing umbrella ribs. Background Technology

[0002] In the umbrella manufacturing industry, with the continuous increase in market demand for umbrellas, large-scale production has become the mainstream trend. As an important production link, the efficiency and quality of the installation and assembly of umbrella ribs and frames are becoming increasingly critical. Currently, common umbrella frames usually have multiple grooves for installing umbrella ribs. During the production process, workers need to insert each umbrella rib into each groove one by one to achieve the connection and fixation of the umbrella ribs and wires.

[0003] However, existing umbrella rib installation methods have the following shortcomings in practical applications: Umbrellas are typically composed of multiple ribs. In actual production operations, when multiple ribs need to be connected in series, the operator needs to simultaneously and precisely hold multiple slender and easily sliding ribs with one hand, aligning them one-to-one with the grooves in the umbrella base, while the other hand skillfully manipulates the wire for threading and connecting them. This operation method not only increases the difficulty of hand-eye coordination but also places high demands on the operator's proficiency and operating skills, significantly increasing the difficulty of the umbrella rib installation process. Furthermore, due to the instability of manual operation, the umbrella rib installation position is prone to deviation, affecting the accuracy and firmness of the connection between the ribs and the wire, thereby reducing production efficiency and increasing the defect rate. In addition, long-term repetitive and complex operations also increase the labor intensity and fatigue of the operators. Therefore, this application proposes a positioning device for umbrella rib installation. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a positioning device for umbrella rib installation that can accurately position and is easy to operate, thereby improving production efficiency and reducing the defect rate.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A positioning device for installing umbrella ribs, comprising:

[0007] A table frame, wherein a central seat is provided on the table frame for placing an umbrella stand; and

[0008] A plurality of positioning components are provided, each of which is disposed on the table frame and is distributed at equal circumferential angles relative to the central seat. Each positioning component includes a base, a support platform, a baffle, and an elastic element. The base is disposed on the table frame and is spaced apart from the central seat. The support platform is slidably disposed on the base and is used to support the umbrella ribs. The baffle is rotatably disposed at one end of the support platform near the central seat and has a limiting groove for positioning the umbrella ribs. The two ends of the elastic element are respectively connected to the support platform and the baffle. The support platform is used to drive the baffle to slide synchronously relative to the base to approach the central seat. When the baffle extends from the end of the base near the central seat, the elastic element causes the baffle to rotate relative to the support platform, thereby causing the umbrella ribs to disengage from the limiting groove.

[0009] Optionally, the limiting groove has an arc-shaped portion.

[0010] Optionally, the umbrella ribs are provided with a flat portion, which is adapted to engage with the limiting groove.

[0011] Optionally, the positioning component further includes a driving element, which is disposed on the base and whose output shaft is connected to the material support platform.

[0012] Optionally, the base is provided with a sliding groove, and the material support platform slides on the sliding groove.

[0013] Optionally, the material support platform is provided with a slide rail, which is slidably engaged with the slide groove.

[0014] Optionally, the material support platform is further provided with a vertical block, which is disposed on the slide rail and connected to the output shaft of the drive component.

[0015] Optionally, the material support platform is provided with a support block, which is used to support the umbrella ribs.

[0016] Optionally, the central seat includes a circular block, a column, and two locking blocks. The circular block is disposed on the table frame, the column is coaxially disposed on the circular block, and both locking blocks are disposed on the circular block. The umbrella seat is sleeved on the column so that the two locking blocks together lock the umbrella seat.

[0017] Compared with the prior art, the present invention has at least the following advantages:

[0018] This utility model discloses a positioning device for umbrella rib installation. By distributing several positioning components at equal angles along a circumference relative to a central base, when the support platform on the positioning components moves the umbrella rib away from the central base relative to the base, the baffle and the support platform together clamp the umbrella rib. Simultaneously, the limiting groove on the baffle engages with the joint, aligning the joint with the groove. The support platform then moves the umbrella rib again into the groove on the umbrella base. This reduces the difficulty of umbrella rib installation, thereby improving production efficiency and reducing the defect rate. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a positioning device for installing umbrella ribs according to one embodiment of the present invention;

[0021] Figure 2 for Figure 1 A partial structural diagram of A in the middle;

[0022] Figure 3 This is a schematic diagram of the structure of the material support platform synchronously driving the baffle away from the center seat according to one embodiment of the present invention;

[0023] Figure 4 for Figure 3 A schematic diagram of the partial structure of B in the diagram;

[0024] Figure 5 This is a schematic diagram of the structure of the material support platform synchronously driving the baffle to approach the center seat according to one embodiment of the present invention;

[0025] Figure 6 for Figure 5 A schematic diagram of the local structure of C;

[0026] Figure 7 This is a schematic diagram of the base according to one embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the material support platform according to one embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram of the structure of the retainer according to one embodiment of the present invention;

[0029] Figure 10 This is a schematic diagram of the umbrella holder according to one embodiment of the present invention;

[0030] Figure 11 This is a schematic diagram of the structure of the center seat according to one embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Positioning device for umbrella rib installation; 10. Umbrella base; 11. Groove; 20. Umbrella rib; 21. Connector; 210. Flat part; 22. Pole body; 30. Table frame; 31. Center seat; 310. Round block; 311. Column; 312. Locking block; 40. Base; 401. Slide groove; 41. Material support platform; 410. Slide rail; 411. Vertical block; 412. Support block; 4120. Pole groove; 413. Extension block; 42. Stop frame; 420. Limiting groove; 421. Arc-shaped part; 43. Elastic element; 44. Driving element. Detailed Implementation

[0033] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model.

[0034] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0037] like Figures 1 to 6 , Figure 10 As shown, in one embodiment, a positioning device 1 for installing umbrella ribs includes a table frame 30 and several positioning components. A central seat 31 is provided on the table frame 30 for placing the umbrella base 10. The positioning components are all disposed on the table frame 30, and each positioning component is distributed at an equal angle to the central seat 31. Each positioning component includes a base 40, a support platform 41, a baffle 42, and an elastic element 43. The base 40 is disposed on the table frame 30, and there is a gap between the base 40 and the central seat 31. The support platform 41 is slidably disposed on the base 40. The baffle 42 is rotatably mounted on the end of the support platform 41 near the center seat 31 to support the umbrella rib 20. The baffle 42 has a limiting groove 420 for positioning the umbrella rib 20. The two ends of the elastic member 43 are connected to the support platform 41 and the baffle 42 respectively. The support platform 41 is used to drive the baffle 42 to slide synchronously relative to the base 40 to approach the center seat 31. When the baffle 42 extends from the end of the base 40 near the center seat 31, the elastic member 43 drives the baffle 42 to rotate relative to the support platform 41, thereby causing the umbrella rib 20 to disengage from the limiting groove 420.

[0038] It should be noted that the central seat 31 is used to place the umbrella base 10. The umbrella base 10 has a tubular structure, and several grooves 11 are formed on the outer surface of the umbrella base 10. Each groove 11 is equidistantly distributed along the circumference with the axis of the umbrella base 10 as the center. Furthermore, each positioning component is distributed at an equal angle to the central seat 31, so that one end of each positioning component faces the umbrella base 10, and each positioning component corresponds to each groove 11. Furthermore, the base 40 is set on the table frame 30, and there is a gap between the base 40 and the central seat 31. The material support platform 41 is slidably set on the base 40. The material support platform 41 is used to support the umbrella ribs 20, so that the material support platform 41 can drive the umbrella ribs 20 to slide closer to or further away from the grooves 11. Furthermore, the baffle 42 has an L-shaped structure. One end of the baffle 42 is rotatably connected to the end of the support platform 41 near the center seat 31. A limiting groove 420 is provided on the inner side wall of the baffle 42, and the limiting groove 420 is located at the end of the inner side wall of the baffle 42 away from the support platform 41. Furthermore, when the support platform 41 drives the baffle 42 to move away from the center seat 31 relative to the base 40, the baffle 42 and the support platform 41 slide on a straight line, thereby forming a gap between the end of the baffle 42 away from the support platform 41 and the support platform 41. The limiting groove 420 is located within the gap. Thus, when the umbrella rib 20 is placed on the support platform 41 and the end of the umbrella rib 20 is located within the gap and engaged with the limiting groove 420, the umbrella rib 20 can be fixed on the support platform 41. At the same time, when the end of the umbrella rib 20 is engaged with the limiting groove 420, the two opposing inner sidewalls of the limiting groove 420 can guide the umbrella rib 20 to rotate, so that the umbrella rib 20 can be aligned with the groove 11.

[0039] It should be noted that the elastic element 43 is a tension spring structure. One end of the elastic element 43 is connected to the end of the baffle 42 away from the material support platform 41, and the other end of the elastic element 43 is connected to the material support platform 41. The end of the elastic element 43 connected to the material support platform 41 is lower than the end of the elastic element 43 connected to the baffle 42. Furthermore, when the material support platform 41 and the baffle 42 slide synchronously relative to the base 40 towards the center seat 31, the baffle 42 is rotatably positioned at the end of the material support platform 41 near the center seat 31, and there is a gap between the base 40 and the center seat 31. When the baffle 42 extends from the end of the base 40 near the center seat 31, the elastic element 43 drives the baffle 42 to slide along the edge of the base 40 near the center seat 31, causing the baffle 42 to rotate from the side of the base 40 near the material support table 41 to the adjacent side, thereby causing the baffle 42 to rotate relative to the material support table 41 to drive the limiting groove 420 to rotate and disengage from the umbrella rib 20, so that the material support table 41 drives the umbrella rib 20 to insert into the groove 11.

[0040] like Figure 2 , Figure 4 , Figure 6 , Figure 9 As shown, in one embodiment, an arc-shaped portion 421 is provided on the limiting groove 420.

[0041] It should be noted that, for ease of description, the longer end of the baffle 42 is defined as the first end, and the shorter end as the second end. The angle between the first and second ends is a right angle, thus making the baffle 42 an L-shaped structure. Furthermore, the first end is rotatably connected to the lower end of the side of the support platform 41 closest to the center seat 31. When the support platform 41 drives the baffle 42 to slide synchronously away from the center seat 31 relative to the base 40, the side of the first end closest to the base 40 rotates upward relative to the support platform 41 along one edge of the base 40, thereby making the second end perpendicular to the sliding direction of the support platform 41. Furthermore, a limiting groove 420 is formed on the inner wall of the second end, and the limiting groove 420 faces the support platform 41. Thus, the limiting groove 420 is located within the gap between the baffle 42 and the support platform 41 to engage the umbrella rib 20.

[0042] It should be noted that one end of the limiting groove 420 is connected to the end face of the second end, making the limiting groove 420 a U-shaped structure. Furthermore, the two opposing inner sidewalls of the limiting groove 420 have arc-shaped portions 421 at the ends near the second end, such that the width of the limiting groove 420 at the end near the second end face is greater than the width of the limiting groove 420 at the end away from the second end face. Thus, when the baffle 42 drives the limiting groove 420 to rotate relative to the material support platform 41 and approach the umbrella rib 20, the end of the umbrella rib 20 can quickly engage with the limiting groove 420.

[0043] like Figure 2, Figure 4 , Figure 6 As shown, in one embodiment, a flat portion 210 is provided on the umbrella rib 20, and the flat portion 210 is adapted to engage with the limiting groove 420.

[0044] It should be noted that a flat portion 210 is provided at one end of the umbrella rib 20. Specifically, both sides of the umbrella rib 20 end face each other as planes, and the two planes are parallel to each other. The distance between the two inner sidewalls of the limiting groove 420 facing each other matches the distance between the two planes, so that the flat portion 210 can be fitted into the limiting groove 420. Further, a through hole for connecting the iron wire is provided on the flat portion 210, and the two ends of the through hole are respectively connected to the two planes. When the flat portion 210 approaches the limiting groove 420, any plane on the flat portion 210 abuts against any arc-shaped portion 421 on the end of the limiting groove 420 that connects to the end of the baffle 42, thereby guiding the flat portion 210 to slide into the limiting groove 420, and simultaneously guiding the two planes to abut against the two inner sidewalls of the limiting groove 420 facing each other, so that the two ends of the through hole in the axial direction are perpendicular to the two inner sidewalls of the limiting groove 420 facing each other. This makes the two planes parallel to the two inner sidewalls facing the groove 11, so that the umbrella rib 20 can be inserted into the groove 11.

[0045] like Figure 1 , Figure 3 , Figure 5 As shown, in one embodiment, the positioning component further includes a drive member 44, which is disposed on the base 40, and the output shaft of the drive member 44 is connected to the material support table 41.

[0046] It should be noted that, for example, the driving component 44 is a cylinder structure, the driving component 44 is mounted on the base 40, and the output shaft of the driving component 44 faces the center seat 31. The material support platform 41 is connected to the output shaft of the driving component 44. For example, the material support platform 41 is screwed to the output shaft of the driving component 44, so that the driving component 44 can drive the material support platform 41 to slide closer to or further away from the center seat 31 relative to the base 40, thereby causing the material support platform 41 to drive the baffle 42 to slide closer to or further away from the center seat 31 synchronously. Specifically, the umbrella rib 20 includes a connector 21 and a rod 22. The connector 21 is located on the end of the rod 22, and the flat portion 210 and the through hole are both opened on the end of the connector 21 away from the rod 22. Further, the rod 22 is placed on the material support platform 41, and the connector 21 extends from the end of the material support platform 41 near the baffle 42, so that the connector 21 is located between the baffle 42 and the material support platform 41. Thus, when the driving component 44 drives the material support platform 41 to slide away from the center seat 31, and simultaneously drives the baffle 42 to slide away from the center seat 31, the baffle 42 rotates relative to the material support platform 41 so that the limiting groove 420 engages with the flat portion 210 on the connector 21. This allows the baffle 42 and the material support platform 41 to jointly fix the umbrella rib 20 and simultaneously correct the parallelism between the two planes and the two inner sidewalls facing the groove 11, thereby aligning the two planes with the two inner sidewalls facing the groove 11.

[0047] like Figure 7 As shown, in one embodiment, a groove 401 is provided on the base 40, and the material support platform 41 slides on the groove 401.

[0048] It should be noted that the groove 401 is oriented towards the recess 11, and both ends of the groove 401 are connected to the two opposite sides of the base 40. This allows the material support platform 41 to slide out from one end of the base 40 to approach the recess 11 or slide out from the other end of the base 40 to move away from the recess 11.

[0049] like Figure 3 , Figure 8 As shown, in one embodiment, a slide rail 410 is provided on the material support platform 41, and the slide rail 410 is slidably engaged with the slide groove 401.

[0050] It should be noted that the slide rail 410 and the slide groove 401 tend to be cross-shaped, so that when the elastic element 43 pulls the stop 42 to rotate downward, the material support table 41 cannot tilt upward relative to the base 40 when it slides close to the groove 11, thus preventing the slide rail 410 from disengaging from the slide groove 401.

[0051] like Figures 3 to 5 , Figure 8 As shown, in one embodiment, the material support platform 41 is further provided with a vertical block 411, which is disposed on the slide rail 410 and is connected to the output shaft of the drive member 44.

[0052] It should be noted that the base 40 tends to have a G-shaped structure, resulting in a hollow structure in the middle of the base 40. The drive unit 44 is disposed within the base 40 and located at the hollow position. The slide groove 401 extends inward from the upper surface of the base 40, allowing the upper surface of the base 40 to communicate with the hollow position. Furthermore, one end of the pendant block 411 is vertically disposed on the slide rail 410, while the other end of the pendant block 411 passes through the slide groove 401 and connects to the output shaft of the drive unit 44 located at the hollow position. In this way, the drive unit 44 can drive the material support table 41 to slide closer to or further away from the center seat 31 via the pendant block 411.

[0053] like Figures 2 to 6 , Figure 8 As shown, in one embodiment, the material support platform 41 is provided with a support block 412, which is used to support the umbrella ribs 20.

[0054] It should be noted that there are two support blocks 412, located at opposite ends of the side of the support platform 41 away from the vertical block 411. Furthermore, each support block 412 has a rod groove 4120, and the two rod grooves 4120 are coaxially arranged. The rod groove 4120 has a U-shaped structure, and its width matches the diameter of the rod 22, allowing the two support blocks 412 to jointly support the rod 22 and prevent it from wobbling. Furthermore, the width of the rod groove 4120 is smaller than the diameter of the end of the connector 21 away from the flat portion 210. Thus, when the stop 42 rotates relative to the support platform 41 to bring the limiting groove 420 closer to the connector 21, the support block 412 on the end of the support platform 41 near the stop 42, together with the stop 42, clamps the connector 21.

[0055] like Figure 3 , Figure 5 , Figure 11 As shown, in one embodiment, the center seat 31 includes a circular block 310, a column 311, and two locking blocks 312. The circular block 310 is disposed on the table frame 30, the column 311 is coaxially disposed on the circular block 310, and the two locking blocks 312 are disposed on the circular block 310. The umbrella seat 10 is sleeved on the column 311 so that the two locking blocks 312 together lock the umbrella seat 10.

[0056] It should be noted that the circular block 310 is mounted on the table frame 30, and each base 40 is distributed at an equal angle to the circular block 310, so that one end of each base 40 faces the circular block 310. Furthermore, the upright column 311 is a cylindrical structure, coaxially mounted on the circular block 310. The diameter of the upright column 311 is smaller than the inner diameter of the umbrella base 10, allowing the umbrella base 10 to be fitted onto the upright column 311. Furthermore, the umbrella base 10 is provided with a protrusion for pressing a switch. Two locking blocks 312 are both mounted on the circular block 310, and the two locking blocks 312 are located on the circumferential surface of the circular block 310, with a gap between them. When the umbrella base 10 is fitted onto the upright column 311, the two locking blocks 312 together clamp the protrusion. In this way, the umbrella base 10 can stand coaxially on the circular block 310, and each groove 11 on the umbrella base 10 can correspond one-to-one with each positioning component.

[0057] like Figures 1 to 6 As shown, in one embodiment, there is a height difference between the positions where the elastic member 43 is connected to the baffle 42 and the material support platform 41, respectively.

[0058] It should be noted that, for ease of description, the support block 412 on the support platform 41 closer to the center seat 31 is defined as the first support block, and the support block 412 farther from the center seat 31 is defined as the second support block. The support platform 41 is also provided with two extension blocks 413, which are respectively located on opposite sides of the first support block, and the length of the two extension blocks 413 is greater than the thickness of the first support block, so that the two extension blocks 413 extend downwards relative to the bottom surface of the support platform 41. Two elastic members 43 are provided. One end of each elastic member 43 is connected to the included angle position of opposite sides of the baffle 42. The other end of each elastic member 43 is connected to the end of each extension block 413 farther from the first support block. This creates a height difference between the two ends of the elastic members 43.

[0059] It should be noted that when the material support platform 41 drives the baffle 42 to slide synchronously away from the center seat 31 relative to the base 40, the included angle position of the baffle 42 rotates relative to the material support platform 41 to move away from the extension block 413. This causes the baffle 42 to pull the elastic element 43, and under the tension of the elastic element 43, the baffle 42 remains in close contact with the upper surface of the base 40. When the material support platform 41 drives the baffle 42 to slide synchronously towards the center seat 31 relative to the base 40, and the baffle 42 extends from the end of the base 40 near the center seat 31, the elastic element 43 will pull the baffle 42 to rotate perpendicular to the upper surface of the base 40 relative to the material support platform 41, causing the limiting groove 420 to disengage from the connector 21. This allows the material support platform 41 to push the connector 21 closer to the center seat 31 to insert into the groove 11.

[0060] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A positioning device for installing umbrella ribs, characterized in that, include: A table frame, wherein a central seat is provided on the table frame for placing an umbrella stand; and A plurality of positioning components are provided, each of which is disposed on the table frame and is distributed at equal circumferential angles relative to the central seat. Each positioning component includes a base, a support platform, a baffle, and an elastic element. The base is disposed on the table frame and is spaced apart from the central seat. The support platform is slidably disposed on the base and is used to support the umbrella ribs. The baffle is rotatably disposed at one end of the support platform near the central seat and has a limiting groove for positioning the umbrella ribs. The two ends of the elastic element are respectively connected to the support platform and the baffle. The support platform is used to drive the baffle to slide synchronously relative to the base to approach the central seat. When the baffle extends from the end of the base near the central seat, the elastic element causes the baffle to rotate relative to the support platform, thereby causing the umbrella ribs to disengage from the limiting groove.

2. The positioning device for umbrella rib installation according to claim 1, characterized in that, The limiting groove has an arc-shaped part.

3. The positioning device for umbrella rib installation according to claim 2, characterized in that, The umbrella ribs have a flat portion that fits into the limiting groove.

4. The positioning device for umbrella rib installation according to claim 1, characterized in that, The positioning component also includes a driving component, which is disposed on the base and whose output shaft is connected to the material support platform.

5. The positioning device for umbrella rib installation according to claim 4, characterized in that, The base has a sliding groove, and the material support platform slides on the sliding groove.

6. The positioning device for umbrella rib installation according to claim 5, characterized in that, The material support platform is equipped with a slide rail, which is slidably engaged with the slide groove.

7. The positioning device for umbrella rib installation according to claim 6, characterized in that, The material support platform is also provided with a vertical block, which is disposed on the slide rail and is connected to the output shaft of the drive component.

8. The positioning device for umbrella rib installation according to claim 7, characterized in that, The material support platform is equipped with a support block, which is used to support the umbrella ribs.

9. The positioning device for umbrella rib installation according to claim 1, characterized in that, The central base includes a circular block, a column, and two locking blocks. The circular block is disposed on the table frame, the column is coaxially disposed on the circular block, and both locking blocks are disposed on the circular block. The umbrella seat is sleeved on the column so that the two locking blocks together lock the umbrella seat.