Umbrella holder capable of holding doll

Abstract

The utility model provides a doll umbrella holder, the doll umbrella holder comprises: a fixing band wearing assembly, the fixing band wearing assembly comprises a first circumferential band, a second circumferential band and a support rod, the first circumferential band and the second circumferential band are respectively fixedly connected with the support rod; the umbrella limiting assembly comprises an umbrella rod limiting part and an umbrella handle limiting part, the umbrella rod limiting part comprises a rod-shaped connecting part and a detachable umbrella rod connecting part, and the rod-shaped connecting part is fixedly connected with the supporting rod; the umbrella handle limiting part is fixedly connected with the supporting rod, and the umbrella handle limiting part comprises an umbrella handle limiting cavity; the included angle alpha between the geometric center connecting line of the detachable umbrella rod connecting part and the umbrella handle limiting cavity and the projection of the supporting rod on the vertical plane is an acute angle. The umbrella rod is longitudinally fixed, the fixing direction of the umbrella rod is adjusted, meanwhile, the longitudinal connecting structure is optimized, the position between upper and lower fixing points is not prone to change, and the effect that the umbrella is more stable is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wearable umbrellas, and in particular relates to an umbrella-holding device for holding a baby. Background Art

[0002] When raising children outside, you need to carry the baby or young child, and often need sun and rain protection. Common umbrellas need to be held in one hand, which is inconvenient to use. Chinese patent CN212185470U discloses a wearable umbrella structure, in which only the umbrella head is fixed, and the umbrella pole can move up and down in the positioning sleeve hole. The distance between the waist belt and the chest strap can change with the ups and downs of the umbrella. When holding an infant or young child, the umbrella may shake up and down due to strong winds, and the umbrella head drives the buckle box and waist belt to shake, and even the umbrella cover shakes together, posing a safety hazard. Utility Model Content

[0003] In view of the above technical problems, the utility model achieves the technical effect of preventing the umbrella from shaking and becoming unstable by fixing the umbrella pole longitudinally, optimizing the longitudinal connection structure, and adjusting the fixing direction of the umbrella pole.

[0004] The first aspect of the utility model provides a baby-holding umbrella-holding device, the baby-holding umbrella-holding device comprising:

[0005] A fixing belt wearing assembly, the fixing belt wearing assembly comprising a first circumferential belt, a second circumferential belt, and a support rod, wherein the first circumferential belt and the second circumferential belt are respectively fixedly connected to the support rod;

[0006] An umbrella limiting assembly, the umbrella limiting assembly comprising an umbrella rod limiting portion and an umbrella handle limiting portion, the umbrella rod limiting portion comprising a rod-shaped connecting portion and a detachable umbrella rod connecting portion, the rod-shaped connecting portion is fixedly connected to the support rod; the umbrella handle limiting portion is fixedly connected to the support rod, and the umbrella handle limiting portion comprises an umbrella handle limiting cavity;

[0007] The angle α between the geometric center connecting line of the detachable umbrella pole connecting part and the umbrella handle limiting cavity and the projection of the support pole on the vertical plane is an acute angle.

[0008] Furthermore, the first circumferential belt is wrapped around and fits the human chest, the second circumferential belt is wrapped around and fits the human waist and abdomen, and the support rod is longitudinally staggered with the first circumferential belt and the second circumferential belt.

[0009] Furthermore, the rod-shaped connecting part and the detachable umbrella-shaft connecting part point to the outside of the human body, the detachable umbrella-shaft connecting part is rotatably connected to the rod-shaped connecting part, and the rod-shaped connecting part (211) includes a telescopic component.

[0010] Furthermore, the detachable umbrella rod connecting portion comprises a through slot and a slot clamping seam for preventing the umbrella handle from slipping off, and the through slot and the slot clamping seam are fixed at the direction of the through slot opening.

[0011] Furthermore, the limit cavity of the umbrella handle opens outwards;

[0012] The umbrella handle limiting cavity comprises a straight handle limiting cavity, a curved handle limiting cavity, and an umbrella pole movable groove, the straight handle limiting cavity and the curved handle limiting cavity are integrally connected, and the curved handle limiting cavity extends outward from the straight handle limiting cavity;

[0013] The umbrella pole movable groove is connected with the straight handle limiting cavity and the bent handle limiting cavity in an integrated manner and presents a trumpet-shaped opening.

[0014] Furthermore, the fixing belt wearing assembly also includes a first shoulder strap and a second shoulder strap, and the first shoulder strap and the second shoulder strap are fixedly connected to the first circumferential belt and the second circumferential belt respectively.

[0015] Furthermore, the first shoulder strap and the second shoulder strap include length adjustment knobs for adjusting the length.

[0016] Furthermore, a flexible support pad is provided on the first side of the first shoulder strap and the first side of the second shoulder strap.

[0017] Furthermore, the umbrella limiting assembly also includes the umbrella handle fastening portion being movably connected to the umbrella handle limiting cavity;

[0018] The umbrella handle fastening part includes a limit lock, a limit block, a latch and a sliding groove;

[0019] The limiting block is fixed on the upper end surface of the bayonet, the first end of the bayonet is detachably connected to the limiting lock, and the second end of the bayonet passes through the sliding slot.

[0020] Furthermore, a ball joint is fixed to the second end of the detachable umbrella rod connecting part, and a ball connecting groove engaged with the ball joint is formed at the first end of the rod-shaped connecting part.

[0021] The beneficial effects of the utility model are: the umbrella pole is fixed longitudinally, the fixing direction of the umbrella pole is adjusted, and the longitudinal connection structure is optimized at the same time. The position between the upper and lower fixing points is not easy to change, thereby achieving the technical effect of preventing the umbrella from shaking and becoming unstable; on the other hand, the fitting position of the umbrella pole and the human body is adjusted, the shielding angle is increased, and it is convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of angle α of the novel embodiment;

[0023] Figure 2 Schematic diagram of the novel embodiment;

[0024] Figure 3 The new embodiment is assembled as a whole Figure 1 ;

[0025] Figure 4The new embodiment is assembled as a whole Figure 2 ;

[0026] Figure 5 The structure diagram of the umbrella pole limiting part of the new embodiment Figure 1 ;

[0027] Figure 6 A schematic diagram of the structure of the limit portion of the umbrella handle of the new embodiment;

[0028] Figure 7 A front view of the limit portion of the umbrella handle of the new embodiment;

[0029] Figure 8 Side view of the shoulder strap of the new embodiment;

[0030] Fig. 9 The structure diagram of the umbrella pole limiting part of the new embodiment Figure 2 ;

[0031] Fig.10 A cross-sectional view of the limiting portion of the umbrella pole of the new embodiment;

[0032] Fig.11 This new embodiment shows Figure 2 ;

[0033] 1 , a first circumferential belt, a second circumferential belt, a support rod, a first shoulder strap, a second shoulder strap, an adjustment buckle, a flexible support pad, an umbrella limiting assembly, an umbrella pole limiting portion, an umbrella handle limiting portion, a handle fastening portion, a vertical plane, an angle α, a rod-shaped connecting portion, a detachable umbrella pole connecting portion, a handle limiting cavity, a straight handle limiting cavity, a curved handle limiting cavity, a movable groove of the umbrella pole, a limit lock, a limit block, a stopper, a sliding groove, a ball head, a ball head connecting groove, and a ball head fastener. DETAILED DESCRIPTION

[0034] The following examples further illustrate the content of the utility model, but should not be construed as limiting the utility model. Without departing from the spirit and essence of the utility model, modifications or replacements made to the methods, steps or conditions of the utility model are within the scope of the utility model.

[0035] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0036] In some embodiments of the present invention, Figure 1-11 As shown: a baby holding umbrella holding device, the baby holding umbrella holding device comprises:

[0037] A fixing belt wearing assembly 10, the fixing belt wearing assembly comprising a first circumferential belt 11, a second circumferential belt 12, and a support rod 13, wherein the first circumferential belt 11 and the second circumferential belt 12 are fixedly connected to the support rod 13 respectively;

[0038] An umbrella limiting assembly 20, the umbrella limiting assembly 20 comprises an umbrella rod limiting portion 21 and an umbrella handle limiting portion 22, the umbrella rod limiting portion 21 comprises a rod-shaped connecting portion 211 and a detachable umbrella rod connecting portion 212, the rod-shaped connecting portion 211 is fixedly connected to the support rod 13; the umbrella handle limiting portion 22 is fixedly connected to the support rod 13, and the umbrella handle limiting portion 22 comprises an umbrella handle limiting cavity 221;

[0039] An angle α31 formed by a geometric center connecting line between the detachable umbrella-shaft connecting portion 212 and the umbrella-handle limiting cavity 221 and a projection of the support rod 13 on the vertical plane 30 is an acute angle.

[0040] In these embodiments:

[0041] The umbrella can be an eccentric umbrella, a straight-bone umbrella, a multi-fold umbrella, or a wind-resistant umbrella; the first circumferential band 11 and the second circumferential band 12 are circumferential bands with adjustable lengths, which surround the chest or abdominal cavity of the human body when in use. The circumferential bands are made of elastic materials, and connectors can be installed so that the circumferential bands are connected into a complete ring through the connectors; the umbrella limiting assembly 20 can be one or more.

[0042] The main body of the support rod 13 can be a columnar structure, a combination of one or more structures such as a cylinder, an elliptical cylinder, a truncated cone, a multi-prism, etc. It can be designed as a retractable structure, such as retracting through a threaded screw, a sliding sleeve, or other retractable structures; the support rod 13 connects the first circumferential belt 11 and the second circumferential belt 12 up and down, fixes the relative positions of the first circumferential belt 11 and the second circumferential belt 12, and at the same time provides support for the umbrella to prevent it from shaking up and down.

[0043] The detachable umbrella pole connecting portion 212 can be detachably connected to the umbrella pole, and can be one or a combination of connection modes such as snap connection, binding, sleeve setting, clamping, etc., which increases the fixing position and improves the stability of the umbrella pole fixing;

[0044] The angle α31 formed by the geometric center connecting line between the detachable umbrella rod connecting portion 212 and the umbrella handle limiting cavity 221 and the projection of the support rod 13 on the vertical plane 30 is an acute angle;

[0045] The rod-shaped connecting part 211 extends away from the human body, separating the umbrella pole from the human body and the supporting pole, increasing the selectable umbrella surface shielding angles and improving the adaptability of the umbrella's fixing direction in different situations. On rainy days or when there is a need to tilt the umbrella sideways or forward, it can be adjusted according to the situation.

[0046] The umbrella pole, the umbrella handle limiting cavity 221, the support rod 13, and the detachable umbrella pole connecting part 212 are connected in sequence to form a triangular structure in space, which has better stability and is not prone to changes in relative spatial position during use, thereby improving the overall stability of the device.

[0047] In some embodiments of the present invention, Figure 1-4 As shown, the difference from the above embodiment is that the first circumferential belt 11 is wrapped around and fits on the human chest, the second circumferential belt 12 is wrapped around and fits on the human waist and abdomen, and the support rod 13 is longitudinally staggered with the first circumferential belt 11 and the second circumferential belt 12.

[0048] In these embodiments:

[0049] The first circumferential belt 11 and the second circumferential belt 12 are in contact with the human body when in use, and the support rod 13 longitudinally supports the first circumferential belt 11 and the second circumferential belt 12, and the support rod 13 can be a telescopic sleeve with adjustable length; when in use, the spacing between the circumferential belts is fixed to prevent the two circumferential belts from sliding up and down along the curvature of the waist and abdomen during use.

[0050] In some embodiments of the present invention, Figure 1-5As shown in 9-10, the difference from the above embodiments is that: the rod-shaped connecting portion 211 and the detachable umbrella-shaft connecting portion 212 point to the outside of the human body, and the detachable umbrella-shaft connecting portion 212 is rotatably connected to the rod-shaped connecting portion 211.

[0051] In these embodiments:

[0052] Existing umbrella holders often fit the human body at a pre-designed angle, but in actual applications, the relative position of the umbrella and the human body needs to be adjusted to fully utilize the umbrella's shielding area. At the same time, when the wind is coming from the front and back of the human body, as well as from other directions, the direction of the umbrella needs to be adjusted to prevent the umbrella from folding and the umbrella pole from bending.

[0053] The rod-shaped connecting part 211 and the detachable umbrella-shaft connecting part 212 point to the outside of the human body, and the detachable umbrella-shaft connecting part 212 is rotatably connected to the rod-shaped connecting part 211; the rod-shaped connecting part 211 can be set as an adjustable telescopic rod or a telescopic component; when the adjustable telescopic rod or the telescopic component is in an extended state, the umbrella rod can be pushed to the outside of the human body, and the umbrella surface can be adjusted to face the front of the human body to block the wind from the front; after shortening the umbrella rod, the umbrella rod can be closer to the human body, so that the umbrella surface can face backward to block. At the same time, the direction of the umbrella surface can be further adjusted by rotating the umbrella-shaft connecting part 212 to adjust the position of the umbrella rod. Increase the direction that the umbrella surface can face, improve the shielding effect, and better prevent wind and rain.

[0054] In some embodiments of the present invention, Figure 1-5 As shown in 9-10, the difference from the above embodiment is that the detachable umbrella handle connecting part 212 includes a through slot 2121 and a through slot slot slot 2122 for preventing the umbrella handle from slipping, and the through slot 2121 and the through slot slot slot 2122 are fixed at the direction of the opening of the through slot 2121.

[0055] In these embodiments:

[0056] The through slot 2121 and the through slot slot 2122 are movable; the through slot 2121 and the through slot slot 2122 are paved with an elastic rough surface, and the through slot 2121 and the through slot slot 2122 form a movable clamping part, which can be clamped by opening and closing; or form a push-card structure, and the umbrella pole is pushed into the through slot 2121 and the through slot slot 2122 for fixing.

[0057] The umbrella pole is clamped and fixed in the through slot 2121 through the through slot clamping slot 2122. Meanwhile, a thicker umbrella pole can also be directly fixed in the through slot.

[0058] Increase the fixing points of the umbrella pole to improve the stability of the umbrella.

[0059] In some embodiments of the present invention, Figure 1-46-7, which is different from the above embodiment in that: the handle limit cavity 221 opens outward;

[0060] The handle limiting cavity 221 includes a straight handle limiting cavity 2211, a curved handle limiting cavity 2212, and an umbrella pole movable groove 2213. The straight handle limiting cavity 2211 and the curved handle limiting cavity 2212 are connected to each other, and the curved handle limiting cavity 2212 extends outward from the straight handle limiting cavity 2211.

[0061] The umbrella pole movable groove 2213 is connected with the straight handle limiting cavity 2211 and the curved handle limiting cavity 2212 in an integral manner and is a trumpet-shaped opening.

[0062] In these embodiments:

[0063] The straight handle limiting cavity 2211 includes a cavity of one or more combinations of a cylindrical shape, a truncated cone shape, or a multi-prism shape, and is used to place the straight handle of the umbrella.

[0064] The curved handle limiting cavity 2212 extends outward from the straight handle limiting cavity and has a curved shape and is used for placing a curved handle of an umbrella.

[0065] The umbrella rod movable groove 2213 has a trumpet-shaped opening, with the trumpet mouth facing the umbrella rod limiting portion 212, so that a certain movable space is reserved for the umbrella rod when adjusting the fixed angle.

[0066] In some embodiments of the present invention, Figure 1-4 As shown in FIG. 8 , the difference from the above embodiment is that the fixing belt wearing assembly 10 also includes a first shoulder strap 14 and a second shoulder strap 15 , and the first shoulder strap 14 and the second shoulder strap 15 are fixedly connected to the first circumferential belt 11 and the second circumferential belt 12 respectively.

[0067] In some embodiments of the present invention, Figure 8 As shown, the difference from the above embodiment is that the first shoulder strap 14 and the second shoulder strap 15 include a length adjustment buckle 16 for adjusting the length.

[0068] In some embodiments of the present invention, Figure 8 As shown, the difference from the above embodiment is that a flexible support pad 17 is laid on the first side of the first shoulder strap 14 and the first side of the second shoulder strap 15 .

[0069] In these embodiments:

[0070] The first shoulder strap 14 and the second shoulder strap 15 are arc-shaped rigid belts on the shoulders of the human body, such as arc-shaped parts made of metal, plastic, etc., and the connecting part with the circumferential belt can be adjusted in length through the length adjustment buckle 16 to adapt to the length of the support rod and be convenient for the human body to wear; the shoulder part of the human body may be a flexible belt, such as a fabric belt, an elastic plastic belt, etc., and part of its length can be adjusted through the length adjustment buckle 16 to be convenient for the human body to wear.

[0071] A flexible support pad 17 is provided on the first side of the first shoulder strap 14 and the first side of the second shoulder strap 15. The first side is the side in contact with the human body. The flexible support pad 17, such as a sponge pad, a silicone pad, an inflatable pad, etc., reduces pressure on the shoulders and improves user comfort.

[0072] In some embodiments of the present invention, Figure 1-4 , 6, 7, the difference from the above embodiments is that: the umbrella limiting assembly 20 also includes the umbrella handle fastening portion 23;

[0073] The umbrella handle fastening portion 23 includes a limit lock 231, a limit block 232, a latch 233, and a sliding slot 234;

[0074] The limiting latch 231 and the sliding slot 234 are both fixed to the outer surface of the umbrella handle limiting cavity 221;

[0075] The limiting block is fixed to the upper end surface of the locking pin 233 , the first end of the locking pin 233 is detachably connected to the limiting locking lock 231 , and the second end of the locking pin 233 passes through the sliding slot 234 .

[0076] In these embodiments:

[0077] The latch 233 slides in the sliding groove 234, and the limit block 232 limits the sliding amount of the latch 233 to prevent it from falling out of the groove; the latch 233 closes, closing the opening of the umbrella handle limit cavity 221, fixing the umbrella handle in the umbrella handle limit cavity 221, and the latch 233 is locked in the limit lock 231 to fix it, preventing the latch 233 from being accidentally unlocked.

[0078] An elastic limiter, such as a spring, a tension spring, an elastic band, an elastic rod, etc., is installed between the latch pin 233 and the limiting latch lock 231 or the sliding slot 234 to continuously fix the latch pin 233 in the limiting latch lock 231 .

[0079] When in use, the limit lock 231, the limit block 232, the latch 233, and the sliding groove 234 fix the umbrella handle and part of the umbrella pole in the umbrella handle limit cavity 221 to prevent the umbrella from moving and improve the fixing stability.

[0080] In some embodiments of the present invention, Figure 1-4As shown in , 9 and 10, the difference from the above embodiments is that: a ball head 2123 is fixed to the second end of the detachable umbrella rod connecting part 212, a ball head connecting groove 2111 engaged with the ball head joint is opened at the first end of the rod-shaped connecting part 211, and a ball head fastener 2112 is connected to the ball head connecting groove 2111.

[0081] In these embodiments:

[0082] The ball head fastener 2112 passes through the ball head connecting groove 2111, and the two are connected by threads. The ball head fastener 2112 includes a knob and a threaded fastening column. When in use, the knob is turned to make the threaded fastening column contact the ball head 2123 to play a fixing role.

[0083] The technical effects of the utility model are multifaceted:

[0084] The rod-shaped connecting part 211 extends away from the human body, separating the umbrella pole from the human body and the supporting pole, increasing the selectable umbrella surface shielding angles and improving the adaptability of the umbrella's fixing direction in different situations. On rainy days or when there is a need to tilt the umbrella sideways or forward, it can be adjusted according to the situation.

[0085] The umbrella pole, the umbrella handle limiting cavity 221, the support rod 13, and the detachable umbrella pole connecting portion 212 are connected in sequence to form a triangular structure in space, which has better stability and is not easy to change the relative position in space during use. When in use, the spacing between the circumferential belts is fixed to prevent the two circumferential belts from sliding up and down along the waist and abdomen curvature during use. The overall stability of the device is improved.

[0086] Although the utility model has been described in detail above by means of general description, specific implementation methods and tests, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model based on the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A baby-holding umbrella-holding device, characterized in that: The baby-holding umbrella-holding device comprises: A fixing belt wearing assembly (10), the fixing belt wearing assembly comprising a first circumferential belt (11), a second circumferential belt (12), and a support rod (13), wherein the first circumferential belt (11) and the second circumferential belt (12) are respectively fixedly connected to the support rod (13); An umbrella limiting assembly (20), the umbrella limiting assembly (20) comprising an umbrella rod limiting portion (21) and an umbrella handle limiting portion (22), the umbrella rod limiting portion (21) comprising a rod-shaped connecting portion (211) and a detachable umbrella rod connecting portion (212), the rod-shaped connecting portion (211) being fixedly connected to the support rod (13); the umbrella handle limiting portion (22) being fixedly connected to the support rod (13), the umbrella handle limiting portion (22) comprising an umbrella handle limiting cavity (221); The included angle α (31) between the geometric center connecting line of the detachable umbrella pole connecting portion (212) and the umbrella handle limiting cavity (221) and the projection of the support pole (13) on the vertical plane (30) is an acute angle.

2. The baby-holding umbrella-holding device according to claim 1, characterized in that: The first circumferential belt (11) surrounds and fits the human chest, the second circumferential belt (12) surrounds and fits the human waist and abdomen, and the support rod (13) is longitudinally staggered with the first circumferential belt (11) and the second circumferential belt (12).

3. The baby-holding umbrella-holding device according to claim 1, characterized in that: The rod-shaped connecting part (211) and the detachable umbrella-shaft connecting part (212) point to the outside of the human body; the detachable umbrella-shaft connecting part (212) is rotatably connected to the rod-shaped connecting part (211); and the rod-shaped connecting part (211) comprises a telescopic component.

4. The baby-holding umbrella-holding device according to claim 3, characterized in that: The detachable umbrella rod connecting portion (212) comprises a through slot (2121) and a through slot clamping slit (2122) for preventing the umbrella handle from slipping off; the through slot (2121) and the through slot clamping slit (2122) are fixed at the direction where the opening of the through slot (2121) points.

5. The baby-holding umbrella-holding device according to claim 3, characterized in that: The handle limiting cavity (221) opens outwards; The umbrella handle limiting cavity (221) comprises a straight handle limiting cavity (2211), a curved handle limiting cavity (2212), and an umbrella pole movable groove (2213); the straight handle limiting cavity (2211) and the curved handle limiting cavity (2212) are integrally connected, and the curved handle limiting cavity (2212) extends outward from the straight handle limiting cavity (2211); The umbrella pole movable groove (2213) is integrally connected with the straight handle limit cavity (2211) and the curved handle limit cavity (2212) and presents a trumpet-shaped opening.

6. The baby-holding umbrella-holding device according to claim 1, characterized in that: The fixing belt wearing assembly (10) further comprises a first shoulder strap (14) and a second shoulder strap (15), wherein the first shoulder strap (14) and the second shoulder strap (15) are respectively fixedly connected to the first circumferential belt (11) and the second circumferential belt (12).

7. The baby-holding umbrella-holding device according to claim 6, characterized in that: The first shoulder strap (14) and the second shoulder strap (15) include length adjustment buckles (16) for adjusting the length.

8. The baby-holding umbrella-holding device according to claim 7, characterized in that: A flexible support pad (17) is provided on the first side of the first shoulder strap (14) and the first side of the second shoulder strap (15).

9. The baby-holding umbrella-holding device according to claim 1, characterized in that: The umbrella limiting assembly (20) further comprises an umbrella handle fastening portion (23); The umbrella handle fastening portion (23) comprises a limit lock (231), a limit block (232), a latch (233), and a sliding groove (234); The limit lock (231) and the sliding groove (234) are both fixed to the outer surface of the umbrella handle limit cavity (221); The limit block is fixed to the upper end surface of the bayonet (233); the first end of the bayonet (233) is detachably connected to the limit lock (231); and the second end of the bayonet (233) passes through the sliding slot (234).

10. The baby-holding umbrella-holding device according to claim 3, characterized in that: A ball head (2123) is fixed to the second end of the detachable umbrella rod connecting portion (212), a ball head connecting groove (2111) engaged with the ball head (2123) is formed at the first end of the rod-shaped connecting portion (211), and a ball head fastener (2112) is connected to the ball head connecting groove (2111).

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