A multi-section telescopic locking mechanism for a center rod of an umbrella

Abstract

The utility model discloses a multi -section type telescopic locking mechanism of umbrella middle stick, including first umbrella middle stick, the both sides of first umbrella middle stick are equipped with second umbrella middle stick, be equipped with automatic retraction part between first umbrella middle stick and second umbrella middle stick, be equipped with locking part between first umbrella middle stick and second umbrella middle stick, automatic retraction part includes the retraction groove on second umbrella middle stick, with the fixed plate of first umbrella middle stick inner wall fixed connection, the fixed connection of pressure rod and fixed plate two sides respectively and the first spring of setting in pressure rod outside, the utility model discloses a first umbrella middle stick, second umbrella middle stick and automatic retraction part are set up, have solved the umbrella middle stick of current available, although can multi -section type telescopic, but when the umbrella middle stick is back to the collection, need manual pushing umbrella middle stick to retract, unable to retract automatically, lead to relatively time -consuming and labor -intensive when shrinking, thereby lead to the problem of reduced practicability.

Description

Technical Field

[0001] This utility model relates to the field of umbrella rod technology, specifically a multi-segment telescopic locking mechanism for umbrella rods. Background Technology

[0002] An umbrella's structure mainly consists of four parts: the handle, the shaft, the ribs, and the canopy. The shaft (or canopy pole) serves as the core framework supporting the umbrella, running through the entire structure. Its material must balance lightweight and strength, commonly using iron, aluminum, or fiberglass. The shaft may have an internal telescopic design for easy folding and storage.

[0003] Existing patent CN206043693U discloses a novel umbrella center rod, comprising a metal center rod body covered with a PE layer, which is uniformly sprayed onto the outer surface of the center rod body by a hot-melt method. This invention uses the center rod body as a carrier, covering it with a PE layer. When the umbrella center rod is discarded, the PE layer can degrade, and when it is recycled, the PE layer will not cause any environmental impact. Therefore, this invention, from an environmental protection perspective, minimizes environmental pollution in the subsequent disposal of discarded umbrellas.

[0004] While current umbrella rods can extend and retract in multiple stages, they require manual pushing to retract, as they cannot retract automatically. This makes retraction relatively time-consuming and laborious, thus reducing their practicality. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of the existing technology by providing a multi-segment telescopic locking mechanism for the umbrella rod. This solves the problem mentioned in the background art that, although the existing umbrella rod can telescopic in multiple segments, it requires manual pushing to retract when it is being used, as it cannot retract automatically. This results in a relatively time-consuming and laborious retraction process, thus reducing its practicality.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-segment telescopic locking mechanism for an umbrella rod, comprising a first umbrella rod, second umbrella rods respectively provided on both sides of the first umbrella rod, an automatic retraction component provided between the first umbrella rod and the second umbrella rod, and a locking component provided between the first umbrella rod and the second umbrella rod.

[0007] The automatic retraction component includes a retraction groove formed on the second umbrella rod, a fixing plate fixedly connected to the inner wall of the first umbrella rod, a pressure rod fixedly connected to both sides of the fixing plate, a first spring sleeved on the outside of the pressure rod, and a limiting component for preventing the second umbrella rod from rotating. The pressure rod is slidably connected to the retraction groove, and the two ends of the first spring are fixedly connected to the pressure rod and the inner wall of the retraction groove, respectively.

[0008] Preferably, the locking component includes recesses respectively opened on both sides of the first umbrella rod, a first inclined block connected to the recesses, a second inclined block fixedly connected to one side of the second umbrella rod, and a second spring fixedly connected to one side of the first inclined block, wherein the first inclined block is slidably connected to the recesses.

[0009] Preferably, the first umbrella rod has movable openings on both sides, and a through opening is provided on one side of the recess. A pull rod is fixedly connected to one side of the first inclined block, a connecting plate is fixedly connected to one end of the pull rod, and a pull ring is fixedly connected to one side of the connecting plate.

[0010] Preferably, guide grooves are provided on both sides of the recess, and guide blocks are slidably connected in the guide grooves. The guide blocks are fixedly connected to the first inclined block.

[0011] Preferably, the limiting component includes limiting grooves respectively opened on both sides of the first umbrella rod and a limiting block disposed in the limiting groove, the limiting block being slidably connected to the limiting groove and the limiting block being fixedly connected to the second umbrella rod.

[0012] Preferably, the first inclined block has a plurality of evenly arranged rolling grooves, and the rolling grooves are provided with rolling balls.

[0013] Preferably, the limiting block is I-shaped and the limiting groove is T-shaped.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting a first umbrella rod, a second umbrella rod, and an automatic retraction component, the second umbrella rod can move within the first umbrella rod. The movement of the second umbrella rod allows the pressure rod to slide within the retraction groove, thereby squeezing the first spring and causing it to deform. The thrust generated by the deformation of the first spring can assist the second umbrella rod in moving and resetting, allowing it to automatically retract and return to its original position, thus greatly improving its practicality.

[0016] 2. By providing a locking component, the movement of the second umbrella rod can drive the second inclined block to move, which can contact the first inclined block and squeeze the first inclined block to move, causing the second spring to deform. The second spring resets, causing the first inclined block to reset, which can lock the second inclined block, thereby positioning and fixing the second umbrella rod to prevent it from moving and resetting. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is the left view of the present invention;

[0019] Figure 3 For the present utility model Figure 2 A three-dimensional cross-sectional view at point AA;

[0020] Figure 4 For the present utility model Figure 3 Enlarged view of point B in the middle;

[0021] Figure 5 For the present utility model Figure 3 Enlarged view of point C in the middle.

[0022] In the diagram: 1. First umbrella center rod; 11. Second umbrella center rod; 21. Retraction groove; 22. Fixing plate; 23. Pressure rod; 24. First spring; 31. Notch; 32. First inclined block; 33. Second inclined block; 34. Second spring; 41. Movable opening; 42. Through opening; 43. Pull rod; 44. Connecting plate; 45. Pull ring; 51. Guide groove; 52. Guide block; 61. Limiting groove; 62. Limiting block; 71. Rolling groove; 72. Ball bearing. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 4This utility model provides a technical solution: a multi-segment telescopic locking mechanism for an umbrella rod, including a first umbrella rod 1, second umbrella rods 11 respectively on both sides of the first umbrella rod 1, an automatic retraction component between the first umbrella rod 1 and the second umbrella rods 11, and a locking component between the first umbrella rod 1 and the second umbrella rods 11. The automatic retraction component includes a retraction groove 21 formed on the second umbrella rod 11, a fixing plate 22 fixedly connected to the inner wall of the first umbrella rod 1, a pressure rod 23 fixedly connected to both sides of the fixing plate 22, a first spring 24 sleeved on the outside of the pressure rod 23, and a limiting component for preventing the second umbrella rod 11 from rotating. The pressure rod 23 is slidably connected to the retraction groove 21, and the two ends of the first spring 24 are fixedly connected to the pressure rod 23 and the inner wall of the retraction groove 21 respectively. The second umbrella rod 11 can slide inside the first umbrella rod 1. When the middle rod 11 moves, the pressure rod 23 can slide within the retraction groove 21. The pressure rod 23 can compress the first spring 24 to deform it. Subsequently, the elasticity of the first spring 24 can assist the second umbrella middle rod 11 to quickly retract and return to its original position. The limiting component includes limiting grooves 61 respectively opened on both sides of the first umbrella middle rod 1 and limiting blocks 62 provided in the limiting grooves 61. The limiting blocks 62 are slidably connected to the limiting grooves 61 and fixedly connected to the second umbrella middle rod 11. The movement of the second umbrella middle rod 11 can drive the limiting blocks 62 to move. The movement of the limiting blocks 62 can limit the movement distance of the second umbrella middle rod 11, thereby preventing it from detaching from the first umbrella middle rod 1. The limiting blocks 62 are I-shaped, and the limiting grooves 61 are T-shaped, which can laterally limit the limiting blocks 62 and prevent them from detaching from the limiting grooves 61.

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5The locking components include recesses 31 on both sides of the first umbrella rod 1, a first inclined block 32 connected to the recesses 31, a second inclined block 33 fixedly connected to one side of the second umbrella rod 11, and a second spring 34 fixedly connected to one side of the first inclined block 32. The first inclined block 32 is slidably connected to the recesses 31. The movement of the second umbrella rod 11 can drive the second inclined block 33 to move. The second inclined block 33 can contact the first inclined block 32 and squeeze the first inclined block 32 to move. The movement of the first inclined block 32 can drive the second spring 34 to deform. The reset of the second spring 34 can push the first inclined block 32 to reset, which can lock the second inclined block 33 and prevent the second umbrella rod 11 from moving. The first umbrella rod 1 has movable openings 41 on both sides, and a through opening 42 is opened on one side of the recesses 31. A pull rod 43 is fixedly connected to one side of the first inclined block 32, and one end of the pull rod 43 is fixedly connected to... A connecting plate 44 is attached, and a pull ring 45 is fixedly connected to one side of the connecting plate 44. The pull ring 45 can drive the pull rod 43 to move, which in turn can drive the first inclined block 32 to move, allowing it to disengage from the second inclined block 33, thereby releasing the second umbrella rod 11 for automatic retraction. Guide grooves 51 are respectively opened on both sides of the recess 31, and guide blocks 52 are slidably connected in the guide grooves 51. The guide blocks 52 are fixedly connected to the first inclined block 32, and the first inclined block 32 can drive the guide blocks 52 to move. The guide blocks 52 can prevent the first inclined block 32 from tilting and can improve the sliding stability of the first inclined block 32. Multiple rolling grooves 71 are evenly arranged on the first inclined block 32, and rolling balls 72 are provided in the rolling grooves 71. The second inclined block 33 can contact the rolling balls 72, and the rolling of the rolling balls 72 can reduce the friction between the second inclined block 33 and the first inclined block 32.

[0026] Working principle: During operation, pulling the two second umbrella rods 11 outwards causes the limiting block 62 and the second inclined block 33 to move. Simultaneously, the pressure rod 23 slides within the retraction groove 21, thereby compressing the first spring 24 and causing it to deform. The second inclined block 33 then contacts the ball bearing 72, compressing the first inclined block 32 and causing it to move. The movement of the first inclined block 32 causes the second spring 34 to deform. When the second inclined block 33 moves onto the first inclined block 32, the second spring 34 resets, causing the first inclined block 32 to reset as well, thus locking the first... The two inclined blocks 33 can fix the second umbrella rod 11 to prevent it from resetting. When resetting is required later, the pull ring 45 can be pulled. The movement of the pull ring 45 can drive the pull rod 43 to move, which in turn can drive the first inclined block 32 to move. When the first inclined block 32 moves away from the second inclined block 33, the second umbrella rod 11 is released, the first spring 24 resets, and can drive the second umbrella rod 11 to quickly retract and return to its original position. The above is the working process of the entire device. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-segment telescopic locking mechanism for an umbrella center bar, comprising a first umbrella center bar (1), characterized in that: A second umbrella rod (11) is provided on both sides of the first umbrella rod (1), an automatic retraction component is provided between the first umbrella rod (1) and the second umbrella rod (11), and a locking component is provided between the first umbrella rod (1) and the second umbrella rod (11); The automatic retraction component includes a retraction groove (21) opened on the second umbrella rod (11), a fixing plate (22) fixedly connected to the inner wall of the first umbrella rod (1), a pressure rod (23) fixedly connected to both sides of the fixing plate (22), a first spring (24) sleeved on the outside of the pressure rod (23), and a limiting component for preventing the second umbrella rod (11) from rotating. The pressure rod (23) is slidably connected to the retraction groove (21), and the two ends of the first spring (24) are fixedly connected to the pressure rod (23) and the inner wall of the retraction groove (21) respectively.

2. The multi-segment telescopic locking mechanism for an umbrella rod according to claim 1, characterized in that: The locking component includes recesses (31) respectively opened on both sides of the first umbrella rod (1), a first inclined block (32) connected to the recesses (31), a second inclined block (33) fixedly connected to one side of the second umbrella rod (11), and a second spring (34) fixedly connected to one side of the first inclined block (32). The first inclined block (32) is slidably connected to the recesses (31).

3. The multi-segment telescopic locking mechanism for an umbrella rod according to claim 2, characterized in that: The first umbrella rod (1) has movable openings (41) on both sides, and a through opening (42) is opened on one side of the recess (31). A pull rod (43) is fixedly connected to one side of the first inclined block (32), and a connecting plate (44) is fixedly connected to one end of the pull rod (43). A pull ring (45) is fixedly connected to one side of the connecting plate (44).

4. The multi-segment telescopic locking mechanism for an umbrella rod according to claim 2, characterized in that: Guide grooves (51) are provided on both sides of the recess (31), and guide blocks (52) are slidably connected in the guide grooves (51). The guide blocks (52) are fixedly connected to the first inclined block (32).

5. The multi-segment telescopic locking mechanism for an umbrella rod according to claim 1, characterized in that: The limiting component includes limiting grooves (61) respectively opened on both sides of the first umbrella rod (1) and limiting blocks (62) provided in the limiting grooves (61). The limiting blocks (62) are slidably connected to the limiting grooves (61) and fixedly connected to the second umbrella rod (11).

6. The multi-segment telescopic locking mechanism for an umbrella rod according to claim 2, characterized in that: The first inclined block (32) has a plurality of evenly arranged rolling grooves (71), and the rolling grooves (71) are provided with balls (72).

7. The multi-segment telescopic locking mechanism for an umbrella rod according to claim 5, characterized in that: The limiting block (62) is I-shaped, and the limiting groove (61) is T-shaped.

Images