Folding umbrella rod core rod with three-section rod top folding part

Abstract

The utility model relates to the technical field of folding umbrella rod core rods, and discloses a folding umbrella rod core rod with a three-section rod top folding part, which comprises a first umbrella rod core rod, a second umbrella rod core rod and a third umbrella rod core rod, the rod wall of the second umbrella rod core rod is sleeved with the first umbrella rod core rod in a sliding mode, the top end of the third umbrella rod core rod is fixedly connected with a top cover, and the bottom of the first umbrella rod core rod is fixedly connected with a handle. The bayonet lock is connected with the connecting cylinder and the button through the transmission rod, transmission processing is facilitated, the position of the bayonet lock is convenient to adjust, the arc-shaped metal elastic strip can push the transmission rod to move in time, the bayonet lock is moved out to the outer side of the first umbrella rod core rod, and the rod wall of the transmission rod slides along the rod wall of the guide rod. And the cylinder wall of the connecting cylinder slides along the rod wall of the fixing rod, so that the movement of the transmission rod and the pin can be kept stable, and the influence on use caused by offset deformation after long-time use can be prevented.

Description

Technical Field

[0001] This utility model relates to the field of folding umbrella rod technology, and in particular to a folding umbrella rod with a three-section top section. Background Technology

[0002] The core of a folding umbrella refers to the internal structure of a folding umbrella, mainly the pole or frame that supports the canopy and allows it to be folded and unfolded. A three-section, top-tightening core of a folding umbrella usually refers to the structural part of a foldable umbrella. Specifically, it includes three retractable pole sections and the top section of the umbrella. This design makes the umbrella smaller and easier to carry when folded.

[0003] In the prior art, in order to improve stability during the extension and contraction of the folding umbrella rod core, a clamping component needs to be provided on the inner wall of the core rod to facilitate the fixing and limiting of the sleeve that slides on the core rod. However, after long-term use, the clamping component will deform due to wear or corrosion, which will lead to a decrease in the clamping effect and affect the use effect. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that in the prior art, in order to improve stability during the extension and contraction of the folding umbrella rod core, a clamping component needs to be provided on the inner wall of the core rod to facilitate the fixation and limitation of the sleeve that slides on the core rod. However, after long-term use, the clamping component will deform due to wear or corrosion, which will lead to a poor clamping effect and affect the use effect. Therefore, a folding umbrella rod core with a three-section top retraction is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A three-section folding umbrella core rod includes a first umbrella core rod, a second umbrella core rod, and a third umbrella core rod. The second umbrella core rod is slidably sleeved on the wall of the third umbrella core rod, and the first umbrella core rod is slidably sleeved on the wall of the second umbrella core rod. A top cover is fixedly connected to the top of the third umbrella core rod, and a handle is fixedly connected to the bottom of the first umbrella core rod. An opening is formed in the wall of the first umbrella core rod, and a locking pin is slidably provided on the inner wall of the opening. A transmission rod is fixedly connected to one side of the inner core of the first umbrella rod. A through groove is opened on the inner wall of the handle. The side wall of the transmission rod is slidably disposed on the inner wall of the handle located in the through groove. A connecting cylinder is fixedly connected to the end of the transmission rod away from the locking pin. A button is fixedly connected to the end of the connecting cylinder. A through hole is opened on the side wall of the handle. The button extends to the outside of the through hole on the handle. An arc-shaped metal elastic strip is fixedly connected to the inner wall of the handle. The two ends of the arc-shaped metal elastic strip are respectively fixedly connected to the rod wall of the transmission rod.

[0007] Preferably, a fixing rod is fixedly connected to the inner wall of the handle, a guide groove is provided on the inner wall of the connecting cylinder, the rod wall of the fixing rod extends into the interior of the connecting cylinder and is fixedly connected to a guide block, and the guide block is slidably disposed on the inner wall of the guide groove.

[0008] Preferably, a guide rod is fixedly connected to the inner wall of the handle, and a sliding hole is provided on the inner wall of the transmission rod. The transmission rod is slidably mounted on the rod wall of the guide rod within the sliding hole.

[0009] Preferably, a first retaining ring is fixedly connected to the inner wall of the first umbrella rod core, a second retaining ring is fixedly connected to the inner wall of the second umbrella rod core, and limiting mechanisms are respectively provided inside the second and third umbrella rod cores.

[0010] Preferably, the limiting mechanism includes a rivet, a connecting rod, and a locking block. The connecting rod is fitted against the inner wall of the second umbrella rod core. The rivet is simultaneously riveted to the connection between the connecting rod and the second umbrella rod core. The locking block is fixedly connected to the rod wall of the connecting rod. Openings are respectively provided on the rod walls of the first umbrella rod core and the second umbrella rod core. The locking block extends to the inner wall of each of the two openings.

[0011] Preferably, the side of the card block facing away from the connecting rod has a rounded corner, and the inner wall of the second umbrella rod core rod located in the opening is set as an arc surface.

[0012] Compared with the prior art, this utility model provides a folding umbrella rod core with a three-section top section, which has the following beneficial effects:

[0013] 1. The folding umbrella rod core at the top of the three-section rod is connected to the connecting cylinder and button via a locking pin and a transmission rod, facilitating transmission and adjustment of the locking pin position. The arc-shaped metal elastic strip can promptly push the transmission rod to move, causing the locking pin to move out to the outside of the first umbrella rod core. The rod wall of the transmission rod slides along the rod wall of the guide rod, and the cylinder wall of the connecting cylinder slides along the rod wall of the fixed rod. This improves the stability of the movement of the transmission rod and the connecting cylinder core, preventing displacement and deformation after long-term use that could affect its use.

[0014] 2. The folding umbrella rod core at the top of the three-section rod can be stably fixed inside the second or third umbrella rod core by rivets. The connecting rod has a certain degree of elasticity. The locking block extends into the opening under the influence of the pressure of the connecting rod, which can lock the connection between the first, second and third umbrella rod cores.

[0015] 3. The folding umbrella rod core at the top of the three-section rod is compressed by the first, second, and third umbrella rod cores. This compression causes the locking block to be compressed, and the rounded corners of the locking block slide against the arc surface inside the opening, pushing the locking block to retract. This does not affect the retraction of the first, second, and third umbrella rod cores. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a three-section folding umbrella rod core with a tapered top, as proposed in this utility model.

[0017] Figure 2 for Figure 1 Enlarged structural diagram of part A in the middle section;

[0018] Figure 3 for Figure 1 A magnified schematic diagram of the structure of part B in the middle section.

[0019] In the diagram: 1 First umbrella rod core, 2 Second umbrella rod core, 3 Third umbrella rod core, 4 Top cover, 5 Handle, 6 Locking pin, 7 Transmission rod, 8 Connecting cylinder, 9 Button, 10 Arc-shaped metal elastic strip, 11 Fixing rod, 12 Guide block, 13 Guide rod, 14 First retaining ring, 15 Second retaining ring, 16 Rivet, 17 Connecting rod, 18 Locking block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-3 A three-section folding umbrella core rod, comprising a first umbrella core rod 1, a second umbrella core rod 2, and a third umbrella core rod 3, characterized in that: the second umbrella core rod 2 is slidably sleeved on the rod wall of the third umbrella core rod 3; the first umbrella core rod 1 is slidably sleeved on the rod wall of the second umbrella core rod 2; a top cover 4 is fixedly connected to the top of the third umbrella core rod 3; a handle 5 is fixedly connected to the bottom of the first umbrella core rod 1; an opening is provided on the rod wall of the first umbrella core rod 1; and a locking pin 6 is slidably provided on the inner wall of the opening of the first umbrella core rod 1. A transmission rod 7 is fixedly connected to one side inside the first umbrella rod core 1. A through groove is opened on the inner wall of the handle 5. The side wall of the transmission rod 7 is slidably disposed on the inner wall of the handle 5 located in the through groove. A connecting cylinder 8 is fixedly connected to the end of the transmission rod 7 away from the locking pin 6. A button 9 is fixedly connected to the end of the connecting cylinder 8. A through hole is opened on the side wall of the handle 5. The button 9 extends to the outside of the through hole of the handle 5. An arc-shaped metal elastic strip 10 is fixedly connected to the inner wall of the handle 5. The two ends of the arc-shaped metal elastic strip 10 are respectively fixedly connected to the rod wall of the transmission rod 7.

[0022] A fixing rod 11 is fixedly connected to the inner wall of the handle 5. A guide groove is provided on the inner wall of the connecting cylinder 8. The rod wall of the fixing rod 11 extends into the interior of the connecting cylinder 8 and is fixedly connected to a guide block 12. The guide block 12 is slidably disposed on the inner wall of the guide groove. A guide rod 13 is fixedly connected to the inner wall of the handle 5. A sliding hole is provided on the inner wall of the transmission rod 7. The transmission rod 7 is located on the inner wall of the sliding hole and is slidably disposed on the rod wall of the guide rod 13. A first retaining ring 14 is fixedly connected to the inner wall of the first umbrella rod core rod 1. A second retaining ring 15 is fixedly connected to the inner wall of the second umbrella rod core rod 2.

[0023] In use, the third umbrella rod core 1 is slidably mounted on the inner wall of the second umbrella rod core 2, while the second umbrella rod core 2 is slidably mounted inside the first umbrella rod core 1. This ensures the telescopic effect of the umbrella rod cores. After retracting to the designated position, the sleeve connecting the umbrella frame is slidably mounted on the bottom of the first umbrella rod core 1 and is locked onto the locking pin 6 to improve stability. The locking pin 6 is connected to the connecting cylinder 8 and the button 9 via the transmission rod 7 for easy transmission. To facilitate adjustment of the position of the locking pin 6, the arc-shaped metal elastic strip 10 can promptly push the transmission rod 7 to move, causing the locking pin 6 to move out to the outside of the first umbrella rod core 1. The rod wall of the transmission rod 7 slides along the rod wall of the guide rod 13, and the cylinder wall of the connecting cylinder 8 slides along the rod wall of the fixed rod 11. This can improve the stability of the movement of the transmission rod 7 and the support 6, and prevent displacement deformation after long-term use from affecting its use. The guide block 12 can further improve the stability of the connecting cylinder 8 sliding on the rod wall of the fixed rod 11. The first retaining ring 14 and the second retaining ring 15 can provide blocking treatment for the retracted positions of the second umbrella rod core 2 and the third umbrella rod core 3.

[0024] like Figure 1-3 As shown, the second umbrella rod core 2 and the third umbrella rod core 3 are respectively provided with limiting mechanisms. The limiting mechanisms include rivets 16, connecting rods 17 and locking blocks 18. The connecting rods 17 are fitted against the inner wall of the second umbrella rod core 2. The rivets 16 are simultaneously riveted to the connection between the connecting rods 17 and the second umbrella rod core 2. The locking blocks 18 are fixedly connected to the rod wall of the connecting rods 17. The rod walls of the first umbrella rod core 1 and the second umbrella rod core 2 are respectively provided with openings. The locking blocks 18 extend to the inner walls of the two openings respectively. The side of the locking blocks 18 away from the connecting rods 17 is provided with rounded corners. The inner wall of the second umbrella rod core 2 located in the opening is set as an arc surface.

[0025] The rivet 16 can stably fix the connecting rod 17 inside the second umbrella rod core 2 or the third umbrella rod core 3. The connecting rod 17 has a certain elasticity. The locking block 18 is affected by the pressure of the connecting rod 17 and extends into the opening. It can lock the connection of the first umbrella rod core 1, the second umbrella rod core 2 and the third umbrella rod core 3. When the first umbrella rod core 1, the second umbrella rod core 2 and the third umbrella rod core 3 retract and squeeze each other, the locking block 18 will be squeezed. The rounded corner of the locking block 18 and the arc surface in the opening will slide against each other, pushing the locking block 18 to retract, so as not to affect the retraction of the first umbrella rod core 1, the second umbrella rod core 2 and the third umbrella rod core 3.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A folding umbrella core rod with a three-section top section, comprising a first umbrella core rod (1), a second umbrella core rod (2), and a third umbrella core rod (3), characterized in that: The second umbrella rod core (2) is slidably sleeved on the rod wall of the third umbrella rod core (3), and the first umbrella rod core (1) is slidably sleeved on the rod wall of the second umbrella rod core (2). A top cover (4) is fixedly connected to the top of the third umbrella rod core (3), and a handle (5) is fixedly connected to the bottom of the first umbrella rod core (1). An opening is provided on the rod wall of the first umbrella rod core (1), and a locking pin (6) is slidably provided on the inner wall of the opening of the first umbrella rod core (1). A transmission rod (7) is fixedly connected to one side of the locking pin (6) inside the first umbrella rod core (1). The inner wall of the handle (5) is provided with a through groove. The side wall of the transmission rod (7) is slidably disposed on the inner wall of the handle (5) located in the through groove. The end of the transmission rod (7) away from the locking pin (6) is fixedly connected to a connecting cylinder (8). The end of the connecting cylinder (8) is fixedly connected to a button (9). The side wall of the handle (5) is provided with a through hole. The button (9) extends to the outside of the through hole of the handle (5). The inner wall of the handle (5) is fixedly connected to an arc-shaped metal elastic strip (10). The two ends of the arc-shaped metal elastic strip (10) are respectively fixedly connected to the rod wall of the transmission rod (7).

2. The folding umbrella core rod with a three-section top section according to claim 1, characterized in that: The inner wall of the handle (5) is fixedly connected to a fixing rod (11), and the inner wall of the connecting cylinder (8) is provided with a guide groove. The rod wall of the fixing rod (11) extends into the interior of the connecting cylinder (8) and is fixedly connected to a guide block (12). The guide block (12) is slidably disposed on the inner wall of the guide groove.

3. The folding umbrella core rod with a three-section top section according to claim 1, characterized in that: The inner wall of the handle (5) is fixedly connected to a guide rod (13), and the inner wall of the transmission rod (7) is provided with a sliding hole. The transmission rod (7) is slidably disposed on the rod wall of the guide rod (13) within the inner wall of the sliding hole.

4. The folding umbrella rod core with a three-section top section according to claim 1, characterized in that: The inner wall of the first umbrella rod core (1) is fixedly connected to a first retaining ring (14), the inner wall of the second umbrella rod core (2) is fixedly connected to a second retaining ring (15), and the interior of the second umbrella rod core (2) and the third umbrella rod core (3) are respectively provided with limiting mechanisms.

5. A folding umbrella rod core with a three-section top section according to claim 4, characterized in that: The limiting mechanism includes a rivet (16), a connecting rod (17), and a locking block (18). The connecting rod (17) is fitted against the inner wall of the second umbrella rod core (2). The rivet (16) is simultaneously riveted to the connection between the connecting rod (17) and the second umbrella rod core (2). The locking block (18) is fixedly connected to the rod wall of the connecting rod (17). The first umbrella rod core (1) and the second umbrella rod core (2) have openings on their respective rod walls. The locking block (18) extends to the inner wall of the two openings respectively.

6. A folding umbrella rod core with a three-section top section according to claim 5, characterized in that: The card block (18) has a rounded corner on the side away from the connecting rod (17), and the inner wall of the second umbrella rod core rod (2) located in the opening is set as an arc surface.

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