A folding table and an umbrella-equipped folding table combination

Abstract

The present invention relates to a folding table, comprising: a fabric tabletop and a support part for supporting the tabletop; the support part includes: an upper connection disk, a lower connection disk, tabletop support rods, connecting rods, ground support rods and shaft rods; one ends of several tabletop support rods are hinged to the lower connection disk, and the other ends are used to support the tabletop fabric; one ends of the corresponding number of connecting rods are hinged to the tabletop support rods, and the other ends are hinged to the upper connection disk; the shaft rod is arranged between the upper and lower connection disks to form an associated and guiding function; the ground support rod passes through a sliding sleeve positioned on the tabletop support rod, and the upper end is hinged to the upper connection disk or the connecting rod, and supports the whole as the tabletop support rod is opened. And the shaft rod extending upward from the tabletop provides a position for inserting a sunshade, constituting a folding table combination with an umbrella.

Description

Technical field:

[0001] The invention belongs to the field of daily necessities, and in particular relates to a folding table and a folding table with an umbrella combination, which are particularly suitable for outdoor leisure and work needs. Background technology:

[0002] The combination of parasols and tables is often used outdoors, especially in summer. For those who drive out, most people choose a foldable umbrella and table combination, which is convenient for storage in the trunk and carrying outdoors. Parasol technology is very mature, but most solutions that can meet the requirements of tilted shading are complex or unreliable, such as:

[0003] CN200820000301.4 discloses a golf bag umbrella, which mainly utilizes a middle stick outer tube that can be inserted into a golf bag, a middle stick inner tube that can be extended and retracted in the middle stick outer tube, and an umbrella body arranged above the middle stick inner tube, and is characterized in that: the middle stick inner tube has a bending section that can be bent at any angle, and the bending section includes a waist-shaped elastic element with large diameter parts at the upper and lower ends and a small diameter part in the middle, that is, a spring formed by winding elastic material; due to the small diameter part in the middle of the waist-shaped elastic element, the umbrella can bend at any angle through the operation of the waist-shaped elastic element in the bending section. However, it has a restoring force and needs to be constrained by other components.

[0004] In addition, CN201720769472.2 discloses a multifunctional parasol, a multifunctional parasol, which includes an umbrella rod, an umbrella rib arranged on the umbrella rod, and an umbrella surface matched with the outer surface of the umbrella rib. A connecting seat is fixedly arranged on the umbrella rod, and the connecting seat is provided with at least two pivot grooves. The bottom of each pivot groove is provided with a limiting portion. A support rod is pivoted in each pivot groove, and a table is matched on the support rod. Further, the upper umbrella rod includes two upper folding rods and lower folding rods that match each other. A U-shaped groove and a protrusion that match each other are provided between the upper folding rod and the lower folding rod. At least one limiting inclined surface is provided between the U-shaped groove and the protrusion. The U-shaped groove, the protrusion and the limiting inclined surface form the umbrella surface angle adjustment mechanism. The interference formed by the inclined surface and the protrusion also needs to be constrained by other components, otherwise the wind resistance is poor and the angle change is easy to occur under the action of wind.

[0005] The closest application to the present invention and also an application of the present applicant, such as CN201920261426.0, discloses a folding table, including: an upper support portion for supporting the tabletop fabric and a lower support portion that touches the ground; the upper support portion is inserted into the guide tube of the lower support portion by means of a shaft rod, and the support for the upper support portion is formed by the bottom of the guide tube; in addition, an umbrella can be inserted at the upper end of the shaft rod to form a folding table structure with an umbrella, expanding the outdoor use, and the disassembly and assembly are very simple. However, there are also some deficiencies. For example, the folding table consists of two parts, the upper and the lower, which can be disassembled to reduce the height after folding, but it appears bulky; secondly, the supporting sunshade is erected in the middle and cannot be adjusted according to the sun's irradiation angle.

[0006] How to overcome the deficiencies of the prior art has become the object of research of the present invention. Summary of the Invention:

[0007] The object of the present invention is to design a folding table in which the tabletop support rod is connected with the ground support rod and can realize synchronous opening and folding operations; and a folding table combination with an umbrella is thus provided, which can not only provide a position for inserting a sunshade umbrella but also adjust the sunshading angle.

[0008] The technical solution of the present invention is realized as follows:

[0009] A folding table, including: a fabric tabletop and a support portion for supporting the tabletop;

[0010] The support portion includes: an upper connection disk, a lower connection disk, a tabletop support rod, a connecting rod, and a shaft rod;

[0011] One end of several tabletop support rods is hinged to the lower connection disk, and the other end is used to support the tabletop fabric;

[0012] One end of the corresponding number of connecting rods is hinged to the tabletop support rod, and the other end is hinged to the upper connection disk;

[0013] One end of the shaft rod is locked to the lower connection disk or the upper connection disk, and the other end passes through the upper connection disk or the lower connection disk, and a locking kit is provided on the upper connection disk or the lower connection disk at the penetrating end, forming a constraint relationship between the upper and lower connection disks by the shaft rod and forming a positioning by the locking kit;

[0014] When the upper connection disk and the lower connection disk move towards each other, the tabletop support rods are in an open state and support the tabletop;

[0015] It is characterized in that:

[0016] It further includes several ground support rods. The ground support rods pass through a sliding sleeve positioned on the tabletop support rod, and the upper end is hinged to the upper connection disk or the connecting rod. As the tabletop support rods open, the ground support rods can slide along the sliding sleeve and follow the sliding sleeve to open outwards. The several ground support rods are evenly distributed on a circumference with the shaft rod as the center, supporting the whole.

[0017] Furthermore, there are three to six ground support rods, and the number of corresponding tabletop support rods and connecting rods is a multiple of or equal to the number of ground support rods; the upper ends of the ground support rods are hinged to the connecting rods.

[0018] A combined folding table with an umbrella includes a sunshade umbrella and the folding table mentioned above. The sunshade umbrella has an umbrella rod, an umbrella skeleton, and an umbrella surface. The umbrella rod supports the umbrella skeleton, and then the umbrella skeleton supports the opening and closing of the umbrella surface. It is characterized in that: in the support part of the folding table, the lower end of the shaft rod is locked on the lower connecting disk, the upper end passes through the upper connecting disk, and an upper inclined section is arranged at the upper end. A corresponding locking kit is arranged on the upper connecting disk; a lower inclined section is arranged at the lower end of the umbrella rod of the sunshade umbrella. The angles between the lower inclined section and the upper inclined section and their respective center lines are equal; the umbrella rod and the shaft rod are docked by means of the upper inclined section and the lower inclined section, so that the umbrella rod can be adjusted within a range from upright to twice the inclined angle; a locking mechanism is also provided at the docking position of the umbrella rod and the shaft rod to lock the inclined angle of the umbrella rod.

[0019] The caliber of the shaft rod is larger than that of the umbrella rod. When the two are docked, the end of the umbrella rod is inserted into the shaft rod, and the locking mechanism is locked on one side of the shaft rod; the locking mechanism includes a sleeve and a handle with a cam part positioned on the sleeve; the sleeve is nested on one side of the shaft rod with a larger caliber, and the cam part of the handle can abut against one side of the umbrella rod with a smaller caliber to form a locking structure for the two.

[0020] A centering rod is arranged at the upper end of the shaft rod, and the upper inclined section is arranged on the centering rod; the centering rod has a lower straight section, a bent section, and an upper inclined section. The upper inclined section of the centering rod forms a docking with the lower inclined section of the umbrella rod, and the lower straight section is docked with the upper end of the shaft rod. Locking mechanisms are arranged at the docking positions. The azimuth of the umbrella rod can be adjusted by means of the locking mechanism at the lower straight section.

[0021] Furthermore, the calibers of the shaft rod and the umbrella rod are equivalent and smaller than that of the centering rod. When docking, the ends of the shaft rod and the umbrella rod are inserted into the centering rod, and the locking mechanism is locked on one side of the centering rod; the locking mechanism includes a sleeve and a handle with a cam part positioned on the sleeve; the sleeve is nested on one side of the centering rod with a larger caliber, and the cam part of the handle can abut against one side of the umbrella rod and the shaft rod with a smaller caliber to form a locking structure for the two.

[0022] The present invention ingeniously sets a linkage ground support rod between the tabletop support rod and the upper connecting disk or the connecting rod to form the support for the whole. Through the guiding of the shaft rod by the upper and lower connecting disks, the opening and folding operations are smoother. When opened in place, it can cooperate with the locking kit to position and tighten the fabric tabletop; and by using the centrally arranged shaft rod, a position for inserting the sunshade umbrella is provided, and with the cooperation of the upper and lower inclined sections, the angle of the sunshade umbrella can be adjusted to block the oblique sunlight, extend the sunshade time, and meet the needs of different occasions. Description of the drawings:

[0023] The present invention will be further described below in conjunction with specific illustrations:

[0024] Figure 1 It is a schematic diagram of a folding table

[0025] Figure 2 It is a schematic diagram of the support part of the folding table

[0026] Figure 3 It is a schematic diagram of the folded state of the support part of the folding table

[0027] Figure 4 It is a schematic diagram of a single support relationship

[0028] Figure 5 It is a schematic diagram of the combination of a folding table with an umbrella

[0029] Figure 6 It is a schematic diagram of the decomposition of a folding table with an umbrella

[0030] Figure 7 It is a schematic diagram of the second support part of the folding table

[0031] Figure 8 It is a schematic diagram of the decomposition of the relationship between the centering rod, the shaft rod and the umbrella rod

[0032] Figure 9 It is a schematic sectional view of the relationship between the locking mechanism, the shaft rod and the centering rod

[0033] Figure 10 It is a schematic diagram of the principle of adjusting the angle of the umbrella rod relative to the shaft rod

[0034] Among them

[0035] 100 - tabletop, 200 - support part

[0036] 1 - upper connecting plate, 2 - lower connecting plate, 3 - shaft rod, 31 - upper inclined section

[0037] 32 - centering rod, 321 - lower straight section, 322 - bending section, 4 - tabletop support rod

[0038] 41 - sliding sleeve, 5 - connecting rod, 6 - ground support rod, 7 - locking kit

[0039] 71 - nut sleeve, 72 - hand-adjustable bolt, 8 - locking mechanism, 81 - sleeve

[0040] 82 - handle, 83 - cam part

[0041] 300 - sunshade umbrella, 301 - umbrella rod, 302 - umbrella frame, 303 - lower inclined section

[0042] X - included angle Specific implementation method:

[0043] Embodiment 1: Folding Table

[0044] Referring to Figures 1 to 4 , a folding table includes two parts: a tabletop 100 made of fabric and a support part 200 for supporting the tabletop; the support part 200 includes: an upper connection disk 1, a lower connection disk 2, a shaft rod 3, tabletop support rods 4, connecting rods 5, and ground support rods 6; one end of several tabletop support rods 4 is hinged to the lower connection disk, and the other end is used to support the tabletop 100; one end of the corresponding number of connecting rods 5 is hinged to the tabletop support rods 4, and the other end is hinged to the upper connection disk 1.

[0045] Several ground support rods 6, generally three to six are preferred, and the number of tabletop support rods 4 and connecting rods 5 is a multiple or equal to the number of ground support rods 6. That is to say, the tabletop 100 needs to have enough supports. Four tabletop support rods 4 can support a quadrilateral tabletop, and eight can support an octagonal tabletop. Obviously, the more supports, the flatter the tabletop. For the ground support rods 6, it is considered that they can stand stably on the ground. Three is the minimum number, and the more, the better the stability. For example, for the above-mentioned octagonal tabletop 100, four or eight ground support rods 6 can be selected; when using four ground support rods 6, that is, one ground support rod 6 needs to be configured at an interval of one tabletop support rod 4, so that the tabletop support rods 4 and the ground support rods 6 are evenly distributed on the circumferences of the upper and lower connection disks, achieving an even support effect. As for the folding table configured with an odd number of tabletop support rods 4, it needs to be supported by the same number of ground support rods 6.

[0046] The ground support rod 6 passes through a sliding sleeve 41 positioned on the tabletop support rod, and the upper end is hinged to the upper connection disk 1 or the connecting rod 5, such as Figure 4 ; in this embodiment, the upper end of the ground support rod 6 is hinged to the connecting rod 5, which can avoid the space occupied by directly hinging on the upper connection disk 1. That is to say, the diameter of the connecting rod 5 is small, which saves more space. Enough connecting rods can be distributed on the circumference of the upper connection disk 1 with a smaller diameter to meet the need of supporting the tabletop 100; in addition, when the upper end of the ground support rod 5 is hinged to the connecting rod 5, a more reasonable angle and height of the ground support can also be adjusted. As the tabletop support rod 4 is opened, the ground support rod 6 can slide along the sliding sleeve 41 and follow the sliding sleeve to open outward. Several ground support rods 6 are evenly distributed on the circumference with the shaft rod 3 as the center, supporting the whole.

[0047] The shaft rod 3 plays a role in guiding and constraining, and also provides a positioning basis. One end of the shaft rod 3 is locked on the upper connection disk 1, and the other end passes through the lower connection disk 2. A locking kit 7 is provided on the lower connection disk 2 at the penetrating end. The shaft rod 3 constitutes the constraint relationship between the upper and lower connection disks 1 and 2, and the positioning is formed by the locking kit 7. The involved locking kit 7 is a prior art and is disclosed in the patent CN201920261426.0. It includes a nut sleeve 71 fixed at the designed position of the shaft rod 3 and a hollow hand-adjusting bolt 72. The hand-adjusting bolt 72 is rotationally positioned on the lower connection disk 2. The hand-adjusting bolt 72 can be selected to be threadedly docked with the nut sleeve 71 and screwed in, and drive the distance between the upper and lower connection disks 1 and 2 to gradually shorten, and the tabletop 100 is gradually tightened; reverse operation until the hand-adjusting bolt 72 disengages from the nut sleeve 71, and the lower connection disk 2 moves downward to the limit, that is, it forms a folded state as shown in Figure 3 That is, the upper connection disk 1 and the lower connection disk 2 move towards each other, the tabletop support rod 4 is in an open state, and supports the tabletop, as shown in

[0048] ; the upper connection disk 1 and the lower connection disk 2 move away from each other, and the tabletop support rod 4 is in a folded state. As a single-function table, the upper connection disk 1 can also support the center of the flexible cloth tabletop 100 without protruding on the tabletop. Figure 2

[0049] Example Two: Umbrella-carrying Folding Table Combination

[0050] Figures 5 to 9 Referring to Figures 5 to 9 , an umbrella-carrying folding table combination includes a sunshade umbrella 300 and the folding table in Example One; the sunshade umbrella 300 has an umbrella rod 301, an umbrella frame 302 and an umbrella surface. Since the umbrella surface is not involved, the umbrella surface is omitted in the figure; the umbrella frame 302 is supported by the umbrella rod 301, and then the opening and closing of the umbrella surface is supported by the umbrella frame 302. As the sunshade umbrella 300 itself is a conventional technology, the key lies in the cooperation structure between the sunshade umbrella and the folding table. Therefore, it is necessary to make appropriate adjustments to the support part 200 of the folding table, that is, when it is opened, the shaft rod 3 extends upward for the insertion of the umbrella rod 301. The specific structure is as follows:

[0051] In the support part 200 of the folding table, the lower end of the shaft rod 3 is locked on the lower connection disk 2, the upper end passes through the upper connection disk 1, and an upper inclined section 31 is provided at the upper end. The corresponding locking kit 7 is arranged on the upper connection disk 1, as shown in Figure 6 and Figure 7 .

[0052] A lower inclined section 303 is provided at the lower end of the umbrella pole 301 of the parasol, and the angle X between the lower inclined section 303 and the upper inclined section 31 and their respective center lines is equal; the umbrella pole 301 and the shaft rod 3 are connected by the upper inclined section 31 and the lower inclined section 303, so that the umbrella pole 301 can be adjusted within the range of upright to inclined twice the angle X; a locking mechanism 8 is also provided at the connection between the umbrella pole 301 and the shaft rod 3, which is used to lock the inclination angle of the umbrella pole 301 to correspond to the angle of sunlight exposure.

[0053] In order to reduce the shear force on the locking mechanism 8, the shaft rod 3 and the umbrella rod 301 adopt a large and small tube matching structure at the joint, such as: the diameter of the shaft rod 3 is larger than the diameter of the umbrella rod 301, the end of the umbrella rod 301 is inserted into the shaft rod 3, and the locking mechanism 8 is locked on one side of the shaft rod 3, that is, it is locked on the side of the rod with a larger diameter, and the rod with a smaller diameter is locked. The ends of the rods are inserted into each other to form an interlaced nesting, which fully utilizes the strength advantage of the rod material itself and bears most of the shear force generated by the joint. Figure 8 and Figure 9 .

[0054] The locking mechanism 8 includes a sleeve 81 and a handle 82 with a cam portion positioned on the sleeve; the sleeve 81 is nested on the side of the large-caliber shaft 3, and the cam portion 83 of the handle 82 can contact the side of the small-caliber umbrella rod 301, forming a locking structure for the two. When operating, only one hand needs to swing the handle 82, which is simple and easy, and the other hand is used to support the umbrella rod 301 and rotate and adjust. In addition, the rivet of the locking sleeve 81 just serves as a limit for inserting the rod, such as Figure 9 , killing two birds with one stone.

[0055] Once the angle of the parasol 300 is adjusted, the center of gravity of the parasol will also shift, resulting in instability of the folding table. Therefore, a centering rod 32 is disposed at the upper end of the shaft 3 to adjust the center of gravity of the parasol 300 so that it is always in the center of the folding table. The centering rod 32 can actually be bent directly from the shaft 3, but it affects the height of the folding table after folding. It is more reasonable to separate the centering rod 32, and it can bring the benefit of adjusting the orientation.

[0056] like Figure 6 and Figure 8 The upper inclined section 31 on the shaft rod 3 is transferred and arranged on the centering rod 32 to keep the shaft rod 3 straight and not protrude after folding. Figure 7; More specifically, the centering rod 32 has a lower straight section 321, a bent section 322 and an upper inclined section 31. By means of the docking of the upper inclined section 31 of the centering rod 32 with the lower inclined section 303 of the umbrella rod and the docking of the lower straight section 321 with the upper end of the shaft rod 3, it is equivalent to forming the centering rod from the shaft rod; locking mechanisms 8 are provided at the docking positions. By means of the locking mechanism at the lower straight section 321, the orientation of the umbrella rod 301 can be adjusted, that is, the orientation of the inclined umbrella surface. More specifically, there are two locking mechanisms 8, one for adjusting the inclination angle of the umbrella surface and the other for adjusting the orientation of the umbrella surface, each performing its own function, and there is no need to adjust the position of the folding table in order to adjust the sunshade orientation.

[0057] Furthermore, the shaft rod 3 and the umbrella rod 301 have a comparable diameter and are smaller than the diameter of the centering rod 32. When docking, the ends of the shaft rod 3 and the umbrella rod 301 are inserted into the centering rod 32, and the locking mechanisms 8 are locked on one side of the centering rod 32. After disassembly, the two locking mechanisms 8 together with the centering rod 32 are short and easy to store. Furthermore, the lower straight section 321 and the upper inclined section 31 of the centering rod 32 can be designed to be rotationally symmetric, and either end can be selected for assembly, which brings convenience to on-site installation.

[0058] Refer to Figure 10 , the shaft rod 3 and the umbrella rod 301 have upper inclined sections 31 and lower inclined sections 303 with the same inclination angle, that is, the angle X between the upper inclined section 31 and the center line of the shaft rod 3 is equal to the angle between the lower inclined section 303 and the center line of the umbrella rod 301. By using the insertion and cooperation of the lower inclined section 303 and the upper inclined section 31 to keep the center lines of the upper inclined section and the lower inclined section overlapping, when the umbrella rod 301 is rotated and adjusted, the umbrella rod 301 will be adjusted within the range from the vertical to an angle of 2X with the vertical line. In the figure, the solid line represents the umbrella rod 301 in the vertical state, and the dotted line represents the umbrella rod at the limit angle of 2X. By using this structure, the inclination angle of the umbrella surface can be adjusted within this range; and the direction pointed by the upper inclined section 31 on the shaft rod is the orientation of the inclined umbrella surface. Pointing east can adjust the shielding of the irradiation from the east. Therefore, the setting of a centering rod 32 brings the additional function of convenient orientation adjustment.

Claims

1. A folding table, comprising: A fabric tabletop (100) and a support part (200) for supporting the tabletop; The support part (200) includes: an upper connection plate (1), a lower connection plate (2), tabletop support rods (4), connecting rods (5), and a shaft rod (3); One end of several tabletop support rods (4) is hinged to the lower connection plate (2), and the other end is used to support the tabletop (100); One end of the corresponding number of connecting rods (5) is hinged to the tabletop support rods (4), and the other end is hinged to the upper connection plate (1); One end of the shaft rod (3) is locked to the lower connection plate (2) or the upper connection plate (1), and the other end penetrates through the upper connection plate (1) or the lower connection plate (2). A locking kit (7) is provided on the upper connection plate (1) or the lower connection plate (2) at the penetrating end. The shaft rod (3) constitutes the constraint relationship between the upper connection plate (1) and the lower connection plate (2), and positioning is formed by the locking kit (7); When the upper connection plate (1) and the lower connection plate (2) move towards each other, the tabletop support rods (4) are in an open state to support the tabletop; It is characterized in that: It further includes several ground support rods (6). The ground support rods (6) pass through a sliding sleeve (41) positioned on the tabletop support rod (4), and the upper end is hinged to the upper connection plate (1) or the connecting rod (5). As the tabletop support rods (4) open, the ground support rods (6) can slide along the sliding sleeve (41) and follow the sliding sleeve (41) to open outwards. The several ground support rods (6) are evenly distributed on the circumference with the shaft rod (3) as the center of the circle to support the whole.

2. The folding table according to claim 1, wherein: The number of ground support rods (6) is three to six, and the corresponding number of tabletop support rods (4) and connecting rods (5) is a multiple of or equal to the number of ground support rods (6); the upper end of the ground support rods (6) is hinged to the connecting rod (5).

3. An umbrella-equipped folding table combination, comprising a sunshade umbrella (300) and the folding table according to claim 1 or 2, wherein the sunshade umbrella (300) has a umbrella pole (301), an umbrella frame (302) and an umbrella surface, the umbrella pole (301) supports the umbrella frame (302), and then the umbrella frame (302) supports the opening and closing of the umbrella surface; wherein: In the support part (200) of the folding table, the lower end of the shaft rod (3) is locked to the lower connection plate (2), and the upper end passes through the upper connection plate (1), and an upper inclined section (31) is provided at the upper end. The corresponding locking kit (7) is provided on the upper connection plate (1); the lower end of the umbrella rod (301) of the sunshade is provided with a lower inclined section (303). The included angles between the lower inclined section (303) and the upper inclined section (31) and their respective center lines are equal; the umbrella rod (301) and the shaft rod (3) are docked by means of the upper inclined section (31) and the lower inclined section (303), so that the umbrella rod (301) can be adjusted within the range of tilting twice the angle from the vertical position; a locking mechanism (8) is also provided at the docking part of the umbrella rod (301) and the shaft rod (3) to lock the tilting angle of the umbrella rod (301).

4. The umbrella-equipped folding table combination according to claim 3, wherein: The diameter of the shaft rod (3) is larger than the diameter of the umbrella rod (301). When the two are docked, the end of the umbrella rod (301) is inserted into the shaft rod (3), and the locking mechanism (8) is locked on one side of the shaft rod (3); the locking mechanism (8) includes a sleeve (81) and a handle (82) with a cam part axially positioned on the sleeve (81); the sleeve (81) is nested on one side of the shaft rod (3) with a larger diameter, and the cam part (83) of the handle can abut against one side of the umbrella rod (301) with a smaller diameter to form a locking structure for the two.

5. The umbrella-equipped folding table combination according to claim 3, wherein: A centering rod (32) is arranged at the upper end of the shaft rod (3), and the upper inclined section (31) is arranged on the centering rod (32); the centering rod (32) has a lower straight section (321), a bending section (322) and an upper inclined section (31). The upper inclined section (31) of the centering rod (32) forms a butt joint with the lower inclined section (303) of the umbrella rod (301), and the lower straight section (321) is butted with the upper end of the shaft rod (3). A locking mechanism (8) is arranged at the butt joint position. The orientation of the umbrella rod (301) can be adjusted by means of the locking mechanism (8) at the lower straight section (321).

6. The umbrella-equipped folding table combination according to claim 5, wherein: The shaft rod (3) and the umbrella rod (301) have equivalent diameters and are smaller than the diameter of the centering rod (32). When docking, the ends of the shaft rod (3) and the umbrella rod (301) are inserted into the centering rod (32), and the locking mechanism (8) is locked on one side of the centering rod (32); the locking mechanism (8) includes a sleeve (81) and a handle (82) with a cam portion axially positioned on the sleeve (81); the sleeve (81) is nested on one side of the centering rod (32) with a larger diameter, and the cam portion (83) of the handle can abut against one side of the umbrella rod (301) and the shaft rod (3) with a smaller diameter to form a locking structure for the two.

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