Simple self-locking tent frame rod structure and method of using same

Abstract

The application discloses a simple self-locking tent frame rod structure, which comprises a fixed rod and a movable rod sleeved at the top of the fixed rod, the top end of the fixed rod is further sleeved with a lock assembly for limiting the relative position of the movable rod and the fixed rod, the top of the movable rod is further connected with a pulley head, and a wire guiding wheel is rotatably connected in the pulley head; an installation seat is fixedly sleeved on the fixed rod, one side of the installation seat is provided with a vertical installation side wall, two lock wheels with parallel axes and perpendicular to the installation side wall are rotatably installed on the installation side wall, the opposite circumferential surfaces of the two lock wheels are integrally formed with engaging ratchets, and the engaging ratchets of the two lock wheels are oppositely arranged. Compared with the prior art, the simple self-locking tent frame rod structure and the using method thereof have the advantages that the structure is compact, the assembly is simple, the height of the frame rod can be quickly adjusted, and the rope can be self-locked.

Description

Technical Field

[0001] This invention relates to the field of tent support accessories technology, specifically to a simple self-locking tent frame structure and its usage method. Background Technology

[0002] Currently, most telescopic poles used in outdoor tents and tarps adopt a simple pin buckle positioning structure, which has the following problems in actual use: the pin buckle positioning accuracy is limited, and it cannot achieve fine adjustment of rope tension; Meanwhile, its ropes rely solely on simple winding for fixation, and are prone to springback and slack after being tightened, resulting in insufficient support stability. However, some of the frame poles with locking mechanisms have complex structures, are cumbersome to assemble, and have poor locking reliability, which cannot meet the needs of rapid adjustment and self-locking stability. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the above-mentioned technical defects and provide a simple self-locking tent pole structure and its usage method, which is compact in structure, easy to assemble, and can realize rapid adjustment of pole height and complete rope self-locking.

[0004] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows: a simple self-locking tent frame pole structure, including a fixed pole and a movable pole sleeved on the top of the fixed pole. The top of the fixed pole is also sleeved with a locking assembly for limiting the relative position of the movable pole and the fixed pole. The top of the movable pole is also connected to a pulley head, and a cable guide wheel is rotatably connected inside the pulley head. A mounting base is fixedly sleeved on the fixing rod. One side of the mounting base has a vertical mounting sidewall. Two locking wheels with parallel axes and perpendicular to the mounting sidewall are rotatably mounted on the mounting sidewall. The circumferential surfaces of the two locking wheels facing each other are integrally formed with meshing ratchet teeth, and the meshing ratchet teeth of the two locking wheels are arranged opposite each other. A vertically extending wedge-shaped rope gap is formed between the opposing circumferential surfaces of the two locking wheels. The center line of the wedge-shaped rope gap is parallel to the axis of the fixing rod, and the width of the wedge-shaped rope gap gradually decreases from top to bottom.

[0005] Preferably, one side of the outer wall of both the fixed rod and the movable rod is recessed with a limiting groove that runs along their length.

[0006] Preferably, the mounting base includes a clamp half and a fixing half. After the clamp half and the fixing half are assembled, they are sleeved with a fixing rod. The inner side of the fixing half is also provided with a protrusion that cooperates with the limiting groove. The mounting sidewall is located on the outer sidewall of the fixed half, and a mounting plate with two sets of shafts is installed on the mounting sidewall by bolts; The locking wheel is sleeved and installed with the shaft.

[0007] Preferably, the fixed rod has a recessed lower fixing hole on the side away from the limiting groove, and the movable rod has a plurality of upper fixing holes arranged along its length direction corresponding to the position of the lower fixing hole; The locking assembly includes a locking seat and a locking pin slidably disposed within the locking seat; When the lower fixing hole is aligned with any upper fixing hole, the locking pin can be inserted into both the lower fixing hole and the upper fixing hole simultaneously.

[0008] Preferably, the locking pin has a T-shaped cross-section, and the inner wall of the locking seat has a sliding groove adapted to the locking pin, with the head of the locking pin slidably disposed in the sliding groove; The latch seat is also hinged with a push button, and a pry tongue extends from the end of the push button away from its pressing surface to abut against the head of the lock pin. When the button is pressed, the pry bar swings in the opposite direction around the hinge axis, pushing the locking pin into the sliding groove.

[0009] Preferably, a return spring is also installed between the head of the locking pin and the inner wall of the sliding groove.

[0010] Preferably, a torsion spring is also provided between the inner wall of each locking wheel and the corresponding shaft; One end of the torsion spring is fixed to the mounting plate, and the other end is fixed to the locking wheel, driving the meshing ratchet teeth of the two locking wheels to maintain a pre-clamped state of mutual contact.

[0011] Another aspect of the present invention discloses a method for using a simple self-locking tent pole, comprising the following steps: S1: Pass the lifting rope around the cable guide at the top of the movable pole, and pass the free end of the rope downward through the wedge-shaped rope gap between the two locking wheels; S2: Press the button to make the pry bar swing in the opposite direction around the hinge axis to push the lock pin to retract, and the lock pin disengages from the upper fixing hole of the movable rod; S3: After adjusting the position of the movable rod relative to the fixed rod, loosen the button and the locking pin will reset and be inserted into the corresponding upper fixing hole to lock. S4: Pull the free end of the rope upwards to make the wedge rope gap bite into the rope.

[0012] Preferably, it also includes unlocking the descent: Pulling down the free end of the rope causes the two locking wheels to rotate in opposite directions, disengaging the ratchet teeth from the rope surface and releasing the rope's self-locking mechanism.

[0013] The advantages of this invention compared with the prior art are: the invention has a simple and compact structure, is easy to assemble, and can quickly complete the coarse adjustment and positioning of the pole height through the locking assembly. It also achieves rope self-locking with the double locking wheel and wedge gap structure, resulting in high adjustment efficiency. In this invention, the torsion spring keeps the locking wheel in a pre-clamped state. The rope can be initially clamped by inserting it. When pulled upward, the ratchet teeth engage synchronously to lock it, effectively preventing the rope from springing back and loosening. It provides strong support stability. Pulling the rope downward can easily unlock it. The operation is simple and intuitive, and no complicated tools are required. The invention employs a self-locking mechanism with ratchet teeth and wedge-shaped clearance, ensuring reliable locking and preventing slippage. Meanwhile, the limiting groove and protrusion work together to prevent the mounting base from rotating, resulting in a stable and durable structure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a simple self-locking tent frame structure.

[0015] Figure 2 This is a structural schematic diagram of a simple self-locking tent frame pole structure.

[0016] Figure 3 This is a partial exploded view of a simple self-locking tent frame structure.

[0017] As shown in the figure: 1. Fixed rod, 2. Movable rod, 3. Pulley head, 4. Cable guide wheel, 5. Mounting base, 6. Mounting side wall, 7. Locking wheel, 8. Engaging ratchet, 9. Limiting groove, 10. Clamp half, 11. Fixed half, 12. Mounting plate, 13. Lower fixing hole, 14. Upper fixing hole, 15. Locking seat, 16. Locking pin, 17. Sliding groove, 18. Press button, 19. Pry tongue. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] Combined with appendix Figure 1-3 As shown, a simple self-locking tent frame structure mainly includes a fixed pole 1, a movable pole 2, a pulley head 3, a locking wheel 7, a mounting base 5, and a locking assembly. The components are compactly assembled and reliably connected, realizing the dual functions of pole height adjustment and rope self-locking.

[0020] Among them, the fixed rod 1 and the movable rod 2 are coaxially fitted with a clearance, and the movable rod 2 can slide along the axial direction of the fixed rod 1 to realize the extension and retraction of the frame.

[0021] A locking assembly is sleeved on the top of the fixed rod 1 to limit the relative position of the movable rod 2 and the fixed rod 1, thus completing the rough positioning of the pole height; a pulley head 3 is fixedly connected to the top of the movable rod 2, and a cable guide wheel 4 is rotatably connected inside the pulley head 3. The cable guide wheel 4 is used to change the transmission direction of the lifting rope and reduce the friction between the rope and the components.

[0022] A mounting base 5 is fixedly sleeved on the fixing rod 1. One side of the mounting base 5 is integrally formed with a vertically arranged mounting side wall 6, which provides a reference surface for the installation of the locking wheel 7.

[0023] Two locking wheels 7 are rotatably mounted on the mounting side wall 6. The axes of the two locking wheels 7 are parallel to each other and perpendicular to the mounting side wall 6, ensuring that the locking wheels 7 can rotate stably. The circumferential surfaces of the opposing portions of the two locking wheels 7 are integrally formed with meshing ratchet teeth 8, and the meshing ratchet teeth 8 of the two locking wheels 7 are arranged opposite each other. A vertically extending wedge-shaped rope gap is formed between the opposing circumferential surfaces of the two locking wheels 7. The center line of the wedge-shaped rope gap is parallel to the axis of the fixing rod 1, and the gap width gradually decreases from top to bottom, providing a structural basis for rope self-locking.

[0024] In use, both the fixed rod 1 and the movable rod 2 have a recessed limiting groove 9 on one side of their outer walls, which is set along their length. The limiting groove 9 is used to achieve circumferential positioning of the mounting base 5 and the movable rod 2, preventing them from rotating relative to the fixed rod 1. The mounting base 5 includes a clamp half 10 and a fixed half 11. After the clamp half 10 and the fixed half 11 are assembled, they are sleeved with the fixed rod 1. The inner side of the fixed half 11 is provided with a protrusion that cooperates with the limiting groove 9. The protrusion is inserted into the limiting groove 9 to achieve circumferential fixation of the mounting base 5 and the fixed rod 1.

[0025] The mounting sidewall 6 is located on the outer sidewall of the fixed half-body 11. A mounting plate 12 is fixedly mounted on the mounting sidewall 6 by bolts. The mounting plate 12 has two sets of shafts. The locking wheels 7 are sleeved with the shafts, allowing the locking wheels 7 to rotate flexibly around the shafts. A torsion spring is connected between the inner wall of each locking wheel 7 and the corresponding shaft. One end of the torsion spring is fixed to the mounting plate 12, and the other end is fixed to the locking wheel 7. Under the elastic force of the torsion spring, the meshing ratchet teeth 8 of the two locking wheels 7 always remain in a pre-clamped state, which facilitates rapid initial clamping after the rope is inserted.

[0026] The fixed rod 1 has a recessed lower fixing hole 13 on the side away from the limiting groove 9. The movable rod 2 has several upper fixing holes 14 evenly distributed along its length direction, corresponding to the position of the lower fixing hole 13. By inserting the locking pin 16 into the upper fixing holes 14 at different positions, the height of the movable rod 2 can be coarsely adjusted.

[0027] The locking assembly includes a locking seat 15 and a locking pin 16. The locking pin 16 is slidably disposed in the locking seat 15. When the lower fixing hole 13 is aligned with any upper fixing hole 14, the locking pin 16 can be inserted into both the lower fixing hole 13 and the upper fixing hole 14 at the same time to achieve axial locking of the movable rod 2 and the fixed rod 1.

[0028] The locking pin 16 has a T-shaped cross-section. The inner wall of the latch seat 15 is provided with a sliding groove 17 that is adapted to the locking pin 16. The head of the locking pin 16 is slidably disposed in the sliding groove 17, and the sliding groove 17 guides the sliding of the locking pin 16. A push button 18 is also hinged inside the latch seat 15. A pry tongue 19 extends from the end of the push button 18 away from its pressing surface, and the pry tongue 19 abuts against the head of the locking pin 16. When the button 18 is pressed, the pry bar 19 swings in the opposite direction around the hinge axis, pushing the locking pin 16 to retract into the sliding groove 17, thereby unlocking. A return spring is also installed between the head of the locking pin 16 and the inner wall of the sliding groove 17. After the button 18 is released, the return spring pushes the locking pin 16 to return to its original position and automatically completes the locking.

[0029] In specific implementation, this invention includes the following steps: S1: Pass the lifting rope around the cable guide 4 at the top of the movable rod 2 to change the direction of the rope transmission. Then, pass the free end of the rope downward through the wedge-shaped rope gap between the two locking wheels 7. At this time, under the action of the torsion spring, the meshing ratchet 8 forms a preliminary pre-clamping on the rope. S2: Press the button 18 to make the pry tongue 19 swing in the opposite direction around the hinge axis. The pry tongue 19 pushes the locking pin 16 to retract into the sliding groove 17. The locking pin 16 disengages from the upper fixing hole 14 of the movable rod 2, releasing the axial lock between the movable rod 2 and the fixed rod 1. S3: Adjust the movable rod 2 to the target height along the axis of the fixed rod 1 to ensure that the lower fixing hole 13 of the fixed rod 1 is aligned with the corresponding upper fixing hole 14 on the movable rod 2. Then loosen the press button 18, and the locking pin 16 will be reset and extended under the action of the return spring, and simultaneously inserted into the lower fixing hole 13 and the corresponding upper fixing hole 14 to complete the coarse locking of the height of the movable rod 2. S4: Pull the free end of the rope upwards. Friction is generated between the rope and the meshing ratchet teeth 8 of the two locking wheels 7, causing the two locking wheels 7 to rotate in opposite directions. This causes the meshing ratchet teeth 8 of both wheels to move upwards synchronously, further squeezing the gap between the wedge-shaped ropes and pushing the rope towards the lower end where the gap is narrower. The meshing ratchet teeth 8 bite into the surface of the rope, achieving self-locking and tightening of the rope to prevent it from loosening. When unlocking and descending is required, pull down the free end of the rope. The rope will cause the two locking wheels 7 to rotate in opposite directions, causing the ratchet 8 to disengage from the rope surface and release the rope self-locking. Then, steps S2-S3 can be repeated to adjust the movable rod 2 to the required height and then relock it. The operation is convenient and efficient.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A simple self-locking tent frame rod structure, comprising a fixed rod (1) and a movable rod (2) sleeved on the top of the fixed rod (1), characterized in that: The top of the fixed rod (1) is also fitted with a locking assembly for limiting the relative position of the movable rod (2) and the fixed rod (1). The top of the movable rod (2) is also connected to a pulley head (3), and a cable wheel (4) is rotatably connected inside the pulley head (3). A mounting base (5) is fixedly sleeved on the fixed rod (1). One side of the mounting base (5) has a vertical mounting sidewall (6). Two locking wheels (7) with parallel axes and perpendicular to the mounting sidewall (6) are rotatably mounted on the mounting sidewall (6). The circumferential surfaces of the opposing parts of the two locking wheels (7) are integrally formed with meshing ratchet teeth (8), and the meshing ratchet teeth (8) of the two locking wheels (7) are arranged opposite to each other. A vertically extending wedge-shaped rope gap is formed between the opposing circumferential surfaces of the two locking wheels (7). The center line of the wedge-shaped rope gap is parallel to the axis of the fixing rod (1), and the width of the wedge-shaped rope gap gradually decreases from top to bottom.

2. The simple self-locking tent frame structure according to claim 1, characterized in that: The outer wall of both the fixed rod (1) and the movable rod (2) is recessed on one side, with a limiting groove (9) provided along its length.

3. The simple self-locking tent frame structure according to claim 2, characterized in that: The mounting base (5) includes a clamp half (10) and a fixed half (11). After the clamp half (10) and the fixed half (11) are assembled, they are sleeved with the fixed rod (1). The inner side of the fixed half (11) is also provided with a protrusion that cooperates with the limiting groove (9). The mounting sidewall (6) is located on the outer sidewall of the fixed half (11), and a mounting plate (12) with two sets of shafts is installed on the mounting sidewall (6) by bolts. The locking wheel (7) is sleeved and installed with the shaft.

4. The simple self-locking tent frame structure according to claim 2, characterized in that: The fixed rod (1) is recessed on the side away from the limiting groove (9) and a number of upper fixed holes (14) are provided on the movable rod (2) corresponding to the position of the lower fixed hole (13) along its length direction. The latch assembly includes a latch seat (15) and a latch pin (16) slidably disposed within the latch seat (15). When the lower fixing hole (13) is aligned with any upper fixing hole (14), the locking pin (16) can be inserted into both the lower fixing hole (13) and the upper fixing hole (14) at the same time.

5. The simple self-locking tent frame structure according to claim 4, characterized in that: The lock pin (16) has a T-shaped cross section, and the inner wall of the lock seat (15) is provided with a sliding groove (17) that is adapted to the lock pin (16). The head of the lock pin (16) is slidably disposed in the sliding groove (17). The latch seat (15) is also hinged to a push button (18), and the push button (18) has a pry tongue (19) extending from one end away from its pressing surface to abut against the head of the lock pin (16). When the button (18) is pressed, the pry bar (19) swings in the opposite direction around the hinge axis, pushing the locking pin (16) to retract into the sliding groove (17).

6. The simple self-locking tent frame structure according to claim 5, characterized in that: A reset spring is also installed between the head of the locking pin (16) and the inner wall of the sliding groove (17).

7. The simple self-locking tent frame structure according to claim 3, characterized in that: A torsion spring is also provided between the inner wall of each lock wheel (7) and the corresponding shaft; One end of the torsion spring is fixed to the mounting plate (12), and the other end is fixed to the locking wheel (7), driving the meshing ratchet (8) of the two locking wheels (7) to maintain a pre-clamped state of mutual contact.

8. A method of using a simple self-locking tent frame as described in any one of claims 1-7, characterized in that: Includes the following steps: S1: Pass the lifting rope around the cable guide (4) at the top of the movable rod (2), and pass the free end of the rope downward through the wedge-shaped rope gap between the two locking wheels (7); S2: Press the button (18) to make the pry tongue (19) swing in the opposite direction around the hinge axis to push the lock pin (16) to retract, and the lock pin (16) disengages from the upper fixing hole (14) of the movable rod (2). S3: After adjusting the position of the movable rod (2) relative to the fixed rod (1), loosen the button (18), and the locking pin (16) will reset and be inserted into the corresponding upper fixing hole (14) to lock; S4: Pull the free end of the rope upwards to make the wedge rope gap bite into the rope.

9. The method of use according to claim 8, characterized in that: Also includes unlocking descent: Pulling down the free end of the rope causes the two locking wheels (7) to rotate in opposite directions, causing the ratchet (8) to disengage from the rope surface and release the rope self-locking.

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