Telescopic rod structure for umbrella and use method
Through the design of the telescopic rod structure for umbrellas, the umbrella rod angle is flexibly adjusted and the folding of the small triangle bracket is achieved through the cooperation of springs and card blocks, which solves the problem that traditional umbrella rods cannot adjust the angle, and improves the wind and rain shading effect and the use of umbrellas Portability.
Patent Information
- Application Number
- CN202411242085.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2024-12-24
AI Technical Summary
The telescopic rods of traditional umbrellas cannot adjust the angle, resulting in insufficient shading in the event of strong winds, inclined rain or low-angle sunlight.
A telescopic rod structure for umbrellas is designed. The telescopic rod body drives the back piece to rotate, and the bottom piece drives the adjustment piece to press the clamp, and the clamp drives the telescopic shaft to slide, so that the first spring is compressed, and the telescopic rod body angle is adjusted to the appropriate position. The first spring pushes the card block into the card slot to fix it, thereby achieving angle adjustment, and the effect of folding and stabilizing the small triangle bracket on the ground through the cooperation of the sliding shaft and the spring.
It realizes flexible adjustment of the angle of the umbrella rod, improves the shading effect of wind and rain, and allows the umbrella rod to stand upright and fold when not in use, avoiding the umbrella rod slipping, suitable for handheld and temporary sunshade use.
Smart Images
Figure CN119174535A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of umbrella poles, and in particular to a telescopic pole structure for an umbrella and a use method thereof. Background Art
[0002] An umbrella is a portable device used to provide shelter from rain, sun or other weather factors. The telescopic pole allows the user to adjust the length of the umbrella as needed to adapt to different usage scenarios. For example, in a small space, the user can shorten the umbrella pole to avoid collision, while outdoors it can be fully extended to obtain a larger coverage area.
[0003] However, the telescopic pole of a traditional umbrella is usually fixed and cannot be adjusted in angle, which means that in the case of strong winds, slanting rain or low-angle sunlight, an umbrella that cannot be adjusted in angle cannot provide adequate shielding. Summary of the invention
[0004] In view of the deficiencies in the prior art, the present invention provides a telescopic rod structure for an umbrella, which solves the problem that the telescopic rod of a traditional umbrella cannot adjust the angle.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an umbrella telescopic rod structure, comprising a telescopic rod body, the bottom end of the telescopic rod body is fixedly connected to a bottom plate, the bottom end of the bottom plate is fixedly connected to an adjusting plate, a rotation groove is provided inside the adjusting plate, the outer wall of the adjusting plate is rotatably connected to an adjusting shell, the outer wall of the adjusting shell is fixedly connected to a connecting shaft, the outer wall of the connecting shaft is rotatably connected to the inside of the rotating groove, the inside of the connecting shaft is slidably connected to the telescopic shaft, a first spring is provided inside the connecting shaft, the inner wall of the first spring is slidably connected to the outer wall of the telescopic shaft, the top end of the telescopic shaft is fixedly connected to a card block, the outer wall of the card block is slidably connected to the inside of the connecting shaft, a plurality of card grooves are evenly provided inside the lower side of the adjusting plate, the outer wall of the card block is slidably connected to the inside of the card groove, and a gripping assembly is provided on the lower surface of the adjusting shell, the gripping assembly is used to facilitate picking up the telescopic rod body.
[0006] In some embodiments, the gripping assembly includes a handle, a top end of the handle is fixedly connected to a lower surface of the adjustment shell, and an inner wall of the handle is slidably connected to a sliding disk.
[0007] In some embodiments, a second spring is disposed inside the sliding plate, and both ends of the second spring are fixedly connected to a sliding shaft, and an outer wall of the sliding shaft is slidably connected to the inside of the sliding plate.
[0008] In some embodiments, a locking ball is fixedly connected to the interior of the sliding shaft, and the outer wall of the locking ball is slidably connected to the interior of the sliding disk.
[0009] In some embodiments, a first adjustment groove is opened inside the upper side of the handle, a second adjustment groove is opened inside the lower side of the handle, the outer wall of the locking ball is arranged inside the first adjustment groove, and the outer wall of the locking ball is arranged inside the second adjustment groove.
[0010] In some embodiments, a connection block is fixedly connected to the lower surface of the sliding plate, and a first rotating shaft is fixedly connected to the interior of the connection block.
[0011] In some embodiments, the outer wall of the first rotating shaft is rotatably connected to a first leg, the lower surface of the sliding plate is fixedly connected to a second leg, and the outer wall of the second leg is fixedly connected to a sliding sleeve.
[0012] In some embodiments, a U-shaped block is fixedly connected to the outer wall of the sliding sleeve, a second rotating shaft is fixedly connected to the interior of the U-shaped block, and an adjustment plate is rotatably connected to the outer wall of the second rotating shaft.
[0013] In some embodiments, the inner wall of the adjustment plate is rotatably connected to a third rotation shaft, the outer wall of the first leg is fixedly connected to a side block, and the outer wall of the third rotation shaft is fixedly connected to the inside of the side block.
[0014] The present invention also provides a method for using the telescopic rod structure for an umbrella, comprising the following specific steps:
[0015] S1: When the angle needs to be adjusted, first pull the telescopic rod body. When the telescopic rod body starts to rotate, it will drive the bottom plate at its bottom end to rotate. When the bottom plate is driven by the telescopic rod body to rotate, it will drive the adjusting plate at its bottom end to rotate. When the outer wall of the adjusting plate rotates on the outer wall of the adjusting shell, the outer wall of the connecting shaft will rotate inside the rotating groove. When the adjusting plate rotates, it will press down the card block inside the card slot. When the card block is pressed down, its outer wall will slide inside the adjusting shell. When the outer wall of the card block slides inside the adjusting shell, it will drive the telescopic shaft on its lower surface to slide. When the outer wall of the telescopic shaft slides inside the adjusting shell, the first spring will be compressed inside the adjusting shell. When the first spring is compressed, its inner wall will slide on the outer wall of the telescopic shaft. When the angle of the telescopic rod body is adjusted to a suitable position, the first spring will rebound. When the first spring rebounds, it will push the card block at its top to slide. When the card block slides out of the adjusting shell, it will enter the card slot above it for fixation.
[0016] S2: When the small triangular bracket needs to be taken out, first pull the first leg inside the handle, and when the first leg is pulled, the sliding plate will be driven to slide, and when the outer wall of the sliding plate slides inside the handle, the outer wall of the card ball will be driven to leave the first adjusting groove and the outer wall of the sliding shaft will slide inside the sliding plate, and when the outer wall of the sliding shaft slides inside the sliding plate, the second spring will be compressed, and when the outer wall of the sliding plate slides to the bottom inner wall of the handle, the second spring will rebound, and when the second spring rebounds, it will push the sliding shaft to slide, and when the outer wall of the sliding shaft slides inside the sliding plate, it will push the card ball into the second adjusting groove, and then pull the adjusting plate to rotate, and when the outer wall of the adjusting plate rotates on the outer wall of the side block, it will drive the second rotating shaft inside it to descend, and when the second rotating shaft descends, it will drive the U-shaped block to descend, and when the U-shaped block descends, it will drive the sliding sleeve of its outer wall to slide and descend, and the inner wall of the sliding sleeve will slide and descend on the outer wall of the second leg, and when the first leg is fully opened, it can be stabilized on the ground.
[0017] The present invention provides a telescopic rod structure for an umbrella, which has the following beneficial effects:
[0018] 1. The present invention drives the bottom plate to rotate through the telescopic rod body, and the bottom plate drives the adjusting plate to rotate, the adjusting plate presses down the card block, the card block drives the telescopic shaft to slide, the telescopic shaft compresses the first spring, and after the angle of the telescopic rod body is adjusted to a suitable position, the first spring pushes the card block into the card slot and is fixed, so that by adjusting the angle of the umbrella rod, the user can flexibly adjust the tilt angle of the umbrella according to the wind direction and rain intensity, avoid wind and rain blowing directly on the body, and improve the protection effect.
[0019] 2. The present invention drives the sliding plate to slide through the first leg, and the sliding plate drives the card ball to leave the first adjusting groove, and the sliding shaft compresses the second spring. When the sliding plate slides to the bottom of the handle, the second spring rebounds and pushes the sliding shaft, and the sliding shaft pushes the card ball into the second adjusting groove, and the adjusting plate is pulled to drive the second rotating shaft to descend, and the second rotating shaft drives the sliding sleeve to slide and descend. After the first leg is fully opened, it can be stabilized on the ground, so that the small triangular bracket can provide additional support when the umbrella is not in use, so that the umbrella can stand upright and avoid the umbrella pole slipping due to random placement.
[0020] 3. The present invention drives the bottom plate to rotate through the telescopic rod body, and the bottom plate drives the adjusting plate to rotate, the adjusting plate presses down the card block, the card block drives the telescopic shaft to slide, the telescopic shaft compresses the first spring, and after the angle of the telescopic rod body is adjusted to a suitable position, the first spring pushes the card block into the card slot and is fixed, thereby achieving the angle adjustment of the umbrella pole. The function of adjusting the angle makes the umbrella not only limited to handheld use, but also can be used as a temporary awning during outdoor activities.
[0021] 4. The present invention drives the sliding plate to slide through the first leg, and the sliding plate drives the card ball to leave the second adjusting groove. The sliding shaft compresses the second spring. When the sliding plate slides to the bottom of the handle, the second spring rebounds and pushes the sliding shaft. The sliding shaft pushes the card ball into the first adjusting groove, so that the triangular bracket can be folded. Such a design is also helpful to fold the bracket when not in use, without affecting the normal use and carrying effect of the umbrella. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a three-dimensional diagram of a telescopic rod structure for an umbrella of the present invention;
[0023] Figure 2 It is a schematic diagram of the regulating sheet of the present invention;
[0024] Figure 3 It is a schematic diagram of the regulating shell of the present invention;
[0025] Figure 4 It is a schematic diagram of the telescopic shaft of the present invention;
[0026] Figure 5 is a cross-sectional view of the handle of the present invention;
[0027] Figure 6 is a schematic diagram of a first regulating tank of the present invention;
[0028] Figure 7 is a schematic diagram of a first leg of the present invention;
[0029] Figure 8 It is a schematic diagram of a connection block of the present invention;
[0030] Fig. 9 It is a schematic diagram of the adjustment plate of the present invention.
[0031] Among them, 1. telescopic rod body; 2. bottom film; 3. adjustment plate; 4. rotating groove; 5. adjustment shell; 6. connecting shaft; 7. telescopic shaft; 8. first spring; 9. clamping block; 10. clamping groove; 11. handle; 12. sliding plate; 13. second spring; 14. sliding shaft; 15. clamping ball; 16. first adjusting groove; 17. second adjusting groove; 18. first rotating shaft; 19. first leg; 20. second leg; 21. sliding sleeve; 22. U-shaped block; 23. second rotating shaft; 24. adjustment plate; 25. third rotating shaft; 26. side block; 27. connecting block. DETAILED DESCRIPTION
[0032] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0033] Please see attached Figure 1 - Attachment Fig. 9 According to some embodiments of the present invention, a telescopic rod structure for an umbrella is provided. The telescopic rod structure comprises a telescopic rod body 1, a bottom plate 2 is fixedly connected to the bottom end of the telescopic rod body 1, an adjusting piece 3 is fixedly connected to the bottom end of the bottom plate 2, a rotating groove 4 is provided inside the adjusting piece 3, an adjusting shell 5 is rotatably connected to the outer wall of the adjusting piece 3, a connecting shaft 6 is fixedly connected to the outer wall of the adjusting shell 5, an outer wall of the connecting shaft 6 is rotatably connected to the inside of the rotating groove 4, a telescopic shaft 7 is slidably connected to the inside of the connecting shaft 6, a first spring 8 is provided inside the connecting shaft 6, an inner wall of the first spring 8 is slidably connected to the outer wall of the telescopic shaft 7, a clamping block 9 is fixedly connected to the top end of the telescopic shaft 7, an outer wall of the clamping block 9 is slidably connected to the inside of the connecting shaft 6, a plurality of clamping grooves 10 are evenly provided inside the lower side of the adjusting piece 3, an outer wall of the clamping block 9 is slidably connected to the inside of the clamping groove 10, a gripping assembly is provided on the lower surface of the adjusting shell 5, and the gripping assembly is used to facilitate picking up the telescopic rod body 1;
[0034] Specifically, the telescopic rod body 1 will drive the bottom film 2 to rotate, and the rotation of the bottom film 2 will drive the adjusting piece 3 to rotate, and the rotation of the adjusting piece 3 will cause the connecting shaft 6 to rotate, and the adjusting piece 3 will press down the block 9, and the outer wall of the block 9 will slide inside the adjusting shell 5, and the sliding of the block 9 will drive the telescopic shaft 7 to slide, and the sliding of the telescopic shaft 7 will compress the first spring 8, and after the angle of the telescopic rod body 1 is adjusted to a suitable position, the first spring 8 rebounds and pushes the block 9 to slide, and the block 9 enters the inside of the card slot 10 above it for fixation, and the angle of the block 9 entering different card slots 10 will be different. The block 9 adopts a rounded corner design and will be automatically squeezed out when the adjusting piece 3 rotates.
[0035] According to some embodiments of the present invention, optionally, the gripping assembly includes a handle 11, the top of the handle 11 is fixedly connected to the lower surface of the adjusting shell 5, the inner wall of the handle 11 is slidably connected to a sliding disk 12, a second spring 13 is arranged inside the sliding disk 12, both ends of the second spring 13 are fixedly connected to a sliding shaft 14, the outer wall of the sliding shaft 14 is slidably connected to the inside of the sliding disk 12, a locking ball 15 is fixedly connected to the inside of the sliding shaft 14, the outer wall of the locking ball 15 is slidably connected to the inside of the sliding disk 12, a first adjustment groove 16 is opened inside the upper side of the handle 11, a second adjustment groove 17 is opened inside the lower side of the handle 11, the outer wall of the locking ball 15 is arranged inside the first adjustment groove 16, and the outer wall of the locking ball 15 is arranged inside the second adjustment groove 17.
[0036] Specifically, pulling the first leg 19 will drive the sliding plate 12 to slide. When the sliding plate 12 slides, it will drive the locking ball 15 to leave the first adjusting groove 16 and make the sliding shaft 14 slide inside the sliding plate 12. When the sliding shaft 14 slides, the second spring 13 will be compressed. When the sliding plate 12 slides to the bottom of the handle 11, the second spring 13 will rebound and push the sliding shaft 14 to slide. When the sliding shaft 14 slides, it will push the locking ball 15 into the second adjusting groove 17.
[0037] According to some embodiments of the present invention, optionally, a connecting block 27 is fixedly connected to the lower surface of the sliding disk 12, a first rotating shaft 18 is fixedly connected inside the connecting block 27, a first supporting leg 19 is rotatably connected to the outer wall of the first rotating shaft 18, a second supporting leg 20 is fixedly connected to the lower surface of the sliding disk 12, a sliding sleeve 21 is fixedly connected to the outer wall of the second supporting leg 20, a U-shaped block 22 is fixedly connected to the outer wall of the sliding sleeve 21, a second rotating shaft 23 is fixedly connected to the inside of the U-shaped block 22, an adjustment plate 24 is rotatably connected to the outer wall of the second rotating shaft 23, an adjustment plate 24 is rotatably connected to the inner wall of the adjustment plate 24, a third rotating shaft 25 is rotatably connected to the inner wall of the adjustment plate 24, a side block 26 is fixedly connected to the outer wall of the first supporting leg 19, and an outer wall of the third rotating shaft 25 is fixedly connected to the inside of the side block 26.
[0038] Specifically, the adjusting plate 24 is pulled to rotate to drive the second rotating shaft 23 to descend, and the second rotating shaft 23 will drive the U-shaped block 22 to descend, and the U-shaped block 22 will drive the sliding sleeve 21 to slide and descend on the outer wall of the second leg 20. After the first leg 19 is fully opened, it can be stabilized on the ground. An anti-slip rubber pad is added to the bottom of the first leg 19 to enhance friction and prevent sliding.
[0039] According to some embodiments of the present invention, the present invention provides a method for using a telescopic rod structure for an umbrella, comprising the following specific steps:
[0040] S1: When the angle needs to be adjusted, first pull the telescopic rod body 1. When the telescopic rod body 1 starts to rotate, it will drive the bottom plate 2 at its bottom to rotate. When the bottom plate 2 is driven by the telescopic rod body 1 to rotate, it will drive the adjusting piece 3 at its bottom to rotate. When the outer wall of the adjusting piece 3 rotates on the outer wall of the adjusting shell 5, the outer wall of the connecting shaft 6 will rotate inside the rotating groove 4. When the adjusting piece 3 rotates, it will press down the block 9 inside the card slot 10. When the block 9 is pressed down, its outer wall will slide inside the adjusting shell 5. When the outer wall of the block 9 is on the adjusting When the interior of the section housing 5 slides, the telescopic shaft 7 on its lower surface will slide. When the outer wall of the telescopic shaft 7 slides inside the adjusting housing 5, the first spring 8 will be compressed inside the adjusting housing 5. When the first spring 8 is compressed, its inner wall will slide on the outer wall of the telescopic shaft 7. When the angle of the telescopic rod 1 is adjusted to a suitable position, the first spring 8 will rebound. When the first spring 8 rebounds, it will push the block 9 at its top to slide. When the block 9 slides out of the adjusting housing 5, it will enter the inside of the card slot 10 above it to be fixed.
[0041] S2: When the small triangular bracket needs to be taken out, first pull the first leg 19 inside the handle 11. When the first leg 19 is pulled, the sliding plate 12 is driven to slide. When the outer wall of the sliding plate 12 slides inside the handle 11, the outer wall of the card ball 15 is driven to leave the first adjustment groove 16 and the outer wall of the sliding shaft 14 is driven to slide inside the sliding plate 12. When the outer wall of the sliding shaft 14 slides inside the sliding plate 12, the second spring 13 is compressed. When the outer wall of the sliding plate 12 slides to the bottom inner wall of the handle 11, the second spring 13 rebounds. When the second spring 13 rebounds, it pushes the sliding plate 12 to move. The shaft 14 slides, and when the outer wall of the sliding shaft 14 slides inside the sliding disk 12, it pushes the card ball 15 into the second adjusting groove 17, and then pulls the adjusting plate 24 to rotate. When the outer wall of the adjusting plate 24 rotates on the outer wall of the side block 26, it drives the second rotating shaft 23 inside it to descend. When the second rotating shaft 23 descends, it drives the U-shaped block 22 to descend. When the U-shaped block 22 descends, it drives the sliding sleeve 21 of its outer wall to slide and descend. The inner wall of the sliding sleeve 21 slides and descends on the outer wall of the second leg 20. When the first leg 19 is fully opened, it can be stabilized on the ground.
[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A telescopic rod structure for an umbrella, comprising a telescopic rod body (1), characterized in that: The bottom end of the telescopic rod body (1) is fixedly connected to a bottom plate (2), the bottom end of the bottom plate (2) is fixedly connected to an adjusting plate (3), a rotating groove (4) is provided inside the adjusting plate (3), an outer wall of the adjusting plate (3) is rotatably connected to an adjusting shell (5), an outer wall of the adjusting shell (5) is fixedly connected to a connecting shaft (6), an outer wall of the connecting shaft (6) is rotatably connected to the inside of the rotating groove (4), a telescopic shaft (7) is slidably connected to the inside of the connecting shaft (6), and a first elastic member is provided inside the connecting shaft (6). A spring (8), the inner wall of the first spring (8) is slidably connected to the outer wall of the telescopic shaft (7), a clamping block (9) is fixedly connected to the top of the telescopic shaft (7), the outer wall of the clamping block (9) is slidably connected to the inside of the connecting shaft (6), a plurality of clamping grooves (10) are evenly arranged inside the lower side of the adjusting plate (3), the outer wall of the clamping block (9) is slidably connected to the inside of the clamping grooves (10), and a gripping assembly is arranged on the lower surface of the adjusting shell (5), and the gripping assembly is used to facilitate picking up the telescopic rod body (1).
2. The telescopic rod structure for an umbrella according to claim 1, characterized in that: The gripping assembly comprises a handle (11), the top end of the handle (11) is fixedly connected to the lower surface of the adjustment shell (5), and the inner wall of the handle (11) is slidably connected to a sliding plate (12).
3. The telescopic rod structure for an umbrella according to claim 2, characterized in that: A second spring (13) is arranged inside the sliding plate (12), and both ends of the second spring (13) are fixedly connected to a sliding shaft (14), and the outer wall of the sliding shaft (14) is slidably connected to the inside of the sliding plate (12).
4. The telescopic rod structure for an umbrella according to claim 3, characterized in that: A locking ball (15) is fixedly connected to the interior of the sliding shaft (14), and the outer wall of the locking ball (15) is slidably connected to the interior of the sliding disc (12).
5. The telescopic rod structure for an umbrella according to claim 4, characterized in that: A first adjustment groove (16) is provided inside the upper side of the handle (11), a second adjustment groove (17) is provided inside the lower side of the handle (11), the outer wall of the locking ball (15) is arranged inside the first adjustment groove (16), and the outer wall of the locking ball (15) is arranged inside the second adjustment groove (17).
6. The telescopic rod structure for an umbrella according to claim 2, characterized in that: A connecting block (27) is fixedly connected to the lower surface of the sliding plate (12), and a first rotating shaft (18) is fixedly connected inside the connecting block (27).
7. The telescopic rod structure for an umbrella according to claim 6, characterized in that: The outer wall of the first rotating shaft (18) is rotatably connected to a first leg (19), the lower surface of the sliding plate (12) is fixedly connected to a second leg (20), and the outer wall of the second leg (20) is fixedly connected to a sliding sleeve (21).
8. The telescopic rod structure for an umbrella according to claim 7, characterized in that: The outer wall of the sliding sleeve (21) is fixedly connected to a U-shaped block (22), the interior of the U-shaped block (22) is fixedly connected to a second rotating shaft (23), and the outer wall of the second rotating shaft (23) is rotatably connected to an adjustment plate (24).
9. The telescopic rod structure for an umbrella according to claim 8, characterized in that: The inner wall of the adjustment plate (24) is rotatably connected to a third rotation shaft (25), the outer wall of the first leg (19) is fixedly connected to a side block (26), and the outer wall of the third rotation shaft (25) is fixedly connected to the inside of the side block (26).
10. A method for using the telescopic rod structure for an umbrella according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: When the angle needs to be adjusted, the telescopic rod (1) is first pulled. When the telescopic rod (1) starts to rotate, the bottom plate (2) at the bottom thereof is driven to rotate. When the bottom plate (2) is driven to rotate by the telescopic rod (1), the adjustment plate (3) at the bottom thereof is driven to rotate. When the outer wall of the adjustment plate (3) rotates on the outer wall of the adjustment shell (5), the outer wall of the connecting shaft (6) is rotated inside the rotation groove (4). When the adjustment plate (3) rotates, the block (9) inside the card slot (10) is pressed downward. When the block (9) is pressed downward, its outer wall slides inside the adjustment shell (5). When the outer wall of the block (9) rotates on the outer wall of the adjustment shell (5), the outer wall of the connecting shaft (6) is rotated inside the rotation groove (4). When the inside of the adjusting shell (5) slides, the telescopic shaft (7) on its lower surface is driven to slide; when the outer wall of the telescopic shaft (7) slides inside the adjusting shell (5), the first spring (8) is compressed inside the adjusting shell (5); when the first spring (8) is compressed, its inner wall slides on the outer wall of the telescopic shaft (7); when the angle of the telescopic rod (1) is adjusted to a suitable position, the first spring (8) rebounds; when the first spring (8) rebounds, it pushes the clamping block (9) at its top to slide; when the clamping block (9) slides out of the adjusting shell (5), it enters the inside of the clamping slot (10) above it to be fixed; S2: When the small triangular bracket needs to be taken out, the first leg (19) inside the handle (11) is first pulled. When the first leg (19) is pulled, the sliding plate (12) is driven to slide. When the outer wall of the sliding plate (12) slides inside the handle (11), the outer wall of the locking ball (15) is driven to leave the first adjustment groove (16) and the outer wall of the sliding shaft (14) is driven to slide inside the sliding plate (12). When the outer wall of the sliding shaft (14) slides inside the sliding plate (12), the second spring (13) is compressed. When the outer wall of the sliding plate (12) slides to the bottom inner wall of the handle (11), the second spring (13) rebounds. When the second spring (13) rebounds, it pushes the sliding plate (12) to slide to the bottom inner wall of the handle (11). The movable shaft (14) slides, and when the outer wall of the sliding shaft (14) slides inside the sliding plate (12), the ball (15) is pushed into the second adjusting groove (17), and then the adjusting plate (24) is pulled to rotate. When the outer wall of the adjusting plate (24) rotates on the outer wall of the side block (26), the second rotating shaft (23) inside the adjusting plate (24) is driven to descend. When the second rotating shaft (23) descends, the U-shaped block (22) is driven to descend. When the U-shaped block (22) descends, the sliding sleeve (21) on the outer wall thereof is driven to slide and descend. The inner wall of the sliding sleeve (21) slides and descends on the outer wall of the second leg (20). When the first leg (19) is fully opened, it can be stabilized on the ground.