A tent canopy structure

Abstract

The application discloses a tent umbrella head structure, which comprises a first die seat, a second die seat and a guide rope, a main guide wheel is rotationally connected in the inner cavity of the second die seat, the main guide wheel is provided with a ring-shaped inward recessed rope placing groove and an outward protruding reverse tooth, the first die seat and the second die seat are connected through the guide rope, the free end of the guide rope extends to the outside world, the guide rope is wound on the rope placing groove of the main guide wheel, an adjustable one-way switch is movably connected to the second die seat, the posture of the adjustable one-way switch is adjusted so that one end of the adjustable one-way switch is in one-way clamping cooperation or separation with the reverse tooth on the main guide wheel; through cooperation of the main guide wheel and the adjustable one-way switch, the tent is gradually unfolded, the tent top frame can be unfolded in place in sequence through multiple and segmented operations, the requirement for the strength of the user is reduced, the convenience and success rate of tent erection are improved, and the practical use requirements of different groups of people in the outdoor environment are better met.

Description

Technical Field

[0001] This invention relates to the field of tent technology, and more specifically to a tent canopy structure. Background Technology

[0002] Tents are the most common camping equipment, serving purposes such as providing temporary shelter, protection from wind and rain, and protection from the sun.

[0003] Existing tent top frames are generally foldable and retractable, designed for easy carrying. However, this structure is inconvenient for users during setup and folding, especially the top area of ​​the tent top frame. The movable connecting seat (first module) and the fixed connecting seat (second module) typically use an interlocking structure, such as the "improved simple tent" disclosed in patent number CN102653997B and the "side pull rope tent top module structure" disclosed in patent number CN204899423U. The folding frame can be unfolded or folded by pulling the pull rope (guide rope).

[0004] During tent deployment, users need to apply significant force at once to overcome the resistance between the frames and fully open the top frame. For users with less physical strength, it is often difficult to complete the full deployment on their own. Furthermore, for large tents, users cannot pull the ropes a considerable distance to complete the full deployment in one go, resulting in a poor user experience and even making it impossible to set up the tent properly.

[0005] Therefore, there is an urgent need for a structure that allows the tent to unfold gradually, and a tent canopy structure that allows the tent top frame to unfold into place sequentially through multiple, segmented operations. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a tent canopy structure to solve the aforementioned problems.

[0007] This invention provides the following technical solution: A tent canopy structure includes a first mold base, a second mold base, and a guide rope. A main guide wheel is rotatably connected to the inner cavity of the second mold base. The main guide wheel has a rope groove and a countersunk tooth. The first mold base and the second mold base are connected by a guide rope. The free end of the guide rope extends to the outside and is wound around the rope groove of the main guide wheel. An adjustable one-way switch is movably connected to the second mold base. The attitude of the adjustable one-way switch is adjusted so that one end of the switch engages or disengages with the countersunk tooth on the main guide wheel in a one-way manner. When the adjustable one-way switch engagement end engages with the reverse teeth on the main guide wheel, the guide rope is fixed relative to the main guide wheel by the biting force between the guide rope and the rope groove of the main guide wheel.

[0008] Preferably, a through groove is formed in the side wall of the second mold base, and the adjustable one-way switch handheld end extends to the outside through the through groove.

[0009] Preferably, the inner cavity of the second mold base is provided with an upper guide wheel and a lower guide wheel located on the periphery of the main guide wheel. The upper guide wheel and the lower guide wheel are used to press the guide rope into the rope groove of the main guide wheel.

[0010] Preferably, the reverse teeth are disposed on the circumferential surface or side surface of the main guide wheel.

[0011] Preferably, the engagement force between the guide rope and the rope groove of the main pulley is achieved through frictional engagement or toothed engagement.

[0012] Preferably, when the rope groove and the guide rope are fixed together by frictional engagement, the opposing side walls of the rope groove are provided with friction teeth in an alternating manner along the circumference; when the rope groove and the guide rope are engaged by toothed engagement, the friction teeth in the rope groove are configured to be evenly arranged in the circumference, and the guide rope has meshing teeth or meshing grooves that cooperate with the friction teeth in the rope groove.

[0013] Preferably, the adjustable one-way switch has a hook portion on its side wall protrusion, and the second mold base has a normally open fixing hook. The adjustable one-way switch is adjusted so that the hook portion engages with or separates from the normally open fixing hook.

[0014] Preferably, the adjustable one-way switch includes a handheld part and a locking part integrated together. The end of the locking part is used to engage or disengage with the reverse teeth on the guide wheel in one direction. The handheld part extends to the outside and the side wall of the handheld part is provided with friction texture.

[0015] Preferably, it also includes a return spring, which is used to push the adjustable one-way switch to maintain the adjustable one-way switch engagement end in unidirectional engagement with the reverse teeth on the circumferential surface of the guide wheel.

[0016] Preferably, the main guide wheel with reverse teeth is a ratchet, and the adjustable one-way switch is a pawl; the fixed end of the guide rope is fixedly connected to the first mold base or the second mold base, the middle section of the guide rope is connected to the first mold base and the second mold base, and the free end of the guide rope extends out from the second mold base or the first mold base.

[0017] The present invention has the following beneficial technical effects: This invention, through the cooperation of the main guide wheel and the adjustable one-way switch, enables the second module to move unidirectionally closer to the first module as the user pulls the guide rope, thus gradually unfolding the tent. Through multiple, segmented operations, the tent top frame can be unfolded into place in sequence, reducing the strength requirements of the user and the need to pull a long distance at once, improving the convenience and success rate of tent setup, and better meeting the actual usage needs of different groups of people in outdoor environments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the tent structure with a tent canopy head structure according to the present invention; Figure 2 This is a cross-sectional schematic diagram of the tent canopy head (side-pull type) structure in the folding frame of the present invention; Figure 3 This is a half-section three-dimensional schematic diagram of the tent umbrella head structure in the folding frame of the present invention; Figure 4 This is a side view of the main wheel of the present invention; Figure 5 This is a three-dimensional schematic diagram of the main guide wheel of the present invention; Figure 6 This is a schematic diagram of the adjustable one-way switch of the present invention; Figure 7 This is a schematic diagram of the second type of tent canopy head (pull-down type) structure of the present invention; Figure 8 This is a schematic diagram of the third type of tent canopy head (pull-up type) structure of the present invention.

[0019] 100. Folding frame; 1. First mold base; 11. Guide wheel; 2. Second mold base; 21. Insert; 23. Through groove; 3. Main guide wheel; 31. Back teeth; 32. Rope groove; 33. Friction teeth; 4. Adjustable one-way switch; 41. Shaft hole; 42. Handhold part; 43. Snap-fit ​​part; 44. Hook part; 45. Friction texture; 46. Limiting protrusion; 5. Normally open fixing hook; 6. Guide rope; 7. Upper guide wheel; 8. Lower guide wheel; 9. Rope opening; 200. Tent fabric. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: A tent canopy structure, such as Figures 2-6 As shown, it includes a first mold base 1, a second mold base 2, a main guide wheel 3, an adjustable one-way switch 4, a normally open fixed hook 5, a guide rope 6, an upper guide wheel 7, and a lower guide wheel 8.

[0022] like Figure 2 , Figure 3As shown, a guide wheel 11 is provided inside the first mold base 1; the second mold base 2 is hollow inside, and the upper wall of the second mold base 2 has an opening to form an insertion port 21. The left side wall of the second mold base 2 has a rope opening 9, and the right side wall of the second mold base 2 has a through groove 23. The first mold base 1 is located above the second mold base 2.

[0023] The second mold base 2 is internally equipped with a main guide wheel 3, an upper guide wheel 7, and several lower guide wheels 8. The main guide wheel 3 is rotatably connected to the inner cavity of the second mold base 2 via a central shaft, and can rotate freely within the second mold base 2. The upper guide wheel 7 and several lower guide wheels 8 are distributed around the main guide wheel 3. In this embodiment, the upper guide wheel 7 is rotatably positioned on the upper right side of the main guide wheel 3, and the two lower guide wheels 8 are rotatably positioned on the lower left side of the main guide wheel 3.

[0024] like Figure 4 , Figure 5 As shown, the outer circumferential surface of the main guide wheel 3 is provided with protruding inverted teeth 31 to form a ratchet structure. The outer circumferential surface of the main guide wheel 3 is also provided with two circumferentially concave rope grooves 32. The two rope grooves 32 are located on both sides of the inverted teeth 31. The two inner sidewalls of the rope grooves 32 are alternately provided with friction teeth 33 along their circumference.

[0025] like Figure 2 As shown by the red arrow, one end of the guide rope 6 is fixed to the second mold base 2, and the other end goes upward through the guide wheel 11 in the first mold base 1, turns 180°, and returns to the inner cavity of the second mold base 2. Guided by the upper guide wheel 7, it winds into the rope groove 32 of the main guide wheel 3. After turning 270° through the rope groove 32 and being guided by the lower guide wheel 8, it extends to the outside through the rope opening 9 for user operation. The guide rope 6 is wound 270° around the rope groove 33 of the main guide wheel 3, and the friction is increased by the friction teeth 33. The guide rope 6 can be made of materials such as hemp, cotton, nylon, polyester, or rubber, and has a certain degree of deformability. The outer diameter of the guide rope 6 is adapted to the width of the rope groove 33. The friction teeth 33 on the inner wall of the rope groove 33 can be slightly pressed into the guide rope 6. The friction teeth 33, arranged alternately on opposite side walls, engage with the guide rope 6, greatly increasing the friction between them.

[0026] like Figure 2 and Figure 6As shown, the adjustable one-way switch 4 includes an integrally formed handheld part 42 and a locking part 43. A shaft hole 41 is formed between the handheld part 42 and the locking part 43, and a rotating shaft is built into the shaft hole 41. The adjustable one-way switch 4 is rotatably connected to the second mold base 2 through the rotating shaft. A return spring (torsion spring) is provided on the outer sleeve of the rotating shaft. The elastic force of the return spring pushes the adjustable one-way switch 4 to rotate and reset. The locking part 43 is located inside the second mold base 2, and the handheld part 42 extends from the inside of the second mold base 2 to the outside through the through groove 23. The outer wall of the handheld part 42 is provided with friction texture 45. The top of the handheld part 42 protrudes to form a hook part 44, and the side wall of the locking part 43 protrudes outward to form a limiting protrusion part 46. A normally open fixing hook 5 is formed by a partial indentation near the through groove 23 of the second mold base 2.

[0027] The inner sidewall of the second mold base 2 has a protrusion forming a limiting protrusion or a recess forming a limiting groove (not shown in the attached figure). The limiting protrusion (or limiting groove) is located within the rotation path of the limiting protrusion 46. The limiting protrusion (or limiting groove) and the limiting protrusion 46 cooperate to limit the rotation angle of the adjustable one-way switch 4, so as to avoid the adjustable one-way switch 4 from rotating excessively relative to the second mold base 2.

[0028] Working principle: Moving downwards: The latch 44 of the adjustable one-way switch 4 disengages from the normally open fixed hook 5, and under the elastic force of the return spring, pushes the adjustable one-way switch 4 to rotate and reset, so that the latch 43 in the adjustable one-way switch 4, which is normally engaged with the reverse teeth 31 on the outer circumferential surface of the main guide wheel 3, maintains a one-way engagement; Figure 1 As shown, when the user pulls the guide rope 6 laterally in the direction of the arrow from the outside, the friction between the rope groove 32 and the guide rope 6 causes the main drive wheel 3 to rotate in a forward unidirectional direction (e.g., Figure 2 (As shown by the blue arrow in the image). During this process, the second mold base 2 is set to remain relatively fixed, while the first mold base 1 is relatively movable; the first mold base 1 descends and approaches the second mold base 2, so that the lower end of the first mold base 1 is inserted into the socket 21 of the second mold base 2 to achieve a connection and form a whole.

[0029] During the process of the first mold base 1 descending relative to the second mold base 2, when the external force applied to the guide rope 6 is stopped, the friction between the rope groove 32 and the guide rope 6 is large enough that it is greater than the external force that causes the first mold base 1 to move away from the second mold base 2, and the main guide wheel 3 cannot rotate in the opposite direction. This avoids the guide rope 6 from sliding relative to the rope groove 32 due to the excessive resultant force on the second mold base 2, thus achieving relative fixation of the first mold base 1 and the second mold base 2 under normal conditions.

[0030] Upward movement: The user pushes the adjustable one-way switch 4 to rotate via the handheld part 42, causing the latch part 44 in the adjustable one-way switch 4 to engage with the normally open fixed hook 5 for temporary fixation (e.g., Figure 2(As shown by the dashed line in the adjustable one-way switch 4), at this time, the latch 44 in the adjustable one-way switch 4 disengages from the reverse tooth 31 of the main guide wheel 3.

[0031] At this time, the main guide wheel 3 can rotate freely in both directions. Under the action of external forces such as the gravity of the second mold base 2 and its connected components, the first mold base 1 is driven relatively away from the second mold base 2. During this process, the main guide wheel 3 can rotate in the opposite direction, causing the free end of the guide rope 6 to tend to extend inward into the interior of the second mold base 2.

[0032] Example 2 includes all the contents of Example 1, except that: like Figure 7 As shown, the rope opening 9 is positioned opposite each other at the bottom of the second mold base 2. Furthermore, the position of the rope opening 9 relative to the second mold base 2 can be flexibly adjusted as needed. The user pulls down the guide rope 6 to achieve the insertion and fixation of the first mold base 1 and the second mold base 2.

[0033] Example 3 includes all the content of Example 1, except that: like Figure 8 As shown, the first mold base 1 is located below the second mold base 2. The lower wall of the second mold base 2 has an opening to form an insertion port 21. The upper end of the first mold base 1 is inserted into the insertion port 21 on the lower wall of the second mold base 2. The rope opening 9 is located on the top wall of the second mold base 2. The user pulls the guide rope 6 upwards to connect and fix the first mold base 1 and the second mold base 2.

[0034] As can be seen from Examples 1 to 3, the arrangement of the guide rope 6 is not limited to the three examples mentioned above, and can be adjusted as needed.

[0035] The arrangement of the rope opening 9 can be varied and chosen arbitrarily, and is not limited to the arrangements disclosed in the three embodiments described above. The position of the rope opening 9 relative to the first mold base 1 or the second mold base 2 can be flexibly adjusted according to requirements.

[0036] Example 4 includes all the contents of Example 1, 2, or 3, except that: The reverse teeth 31 are set on the side wall of the main guide wheel 3 and surround the central axis of the main guide wheel 3. The two rope grooves 32 are also set on the circumferential surface of the main guide wheel 3.

[0037] Example 5 includes all the contents of Example 1, 2, or 3, except that: In Embodiment 1, the rope groove 32 and the guide rope 6 are fixed by frictional engagement. Other forms of frictional engagement can also be used to achieve frictional fixation between the two. For example, an interference fit can be used between the rope groove 32 and the guide rope 6, making the groove diameter of the rope groove 32 slightly smaller than the nominal diameter of the guide rope 6. This relies on the elastic deformation of the material to generate a continuous radial clamping force, thereby obtaining a stable and adjustable frictional torque. Furthermore, friction textures, such as helical knurling, annular serrations, or axial grooves, can be provided on the surface of the guide rope 6 to increase the coefficient of friction and prevent slippage.

[0038] Surface coating technology can also be combined to process mesh or dotted protrusions on the inner wall of the rope groove 32 or the outer wall of the guide rope 6, spray a wear-resistant rubber layer, cover with polyurethane material, or embed a high friction coefficient intermediate pad between the two.

[0039] Example 6 includes all the contents of Example 1, 2, 3, 4, or 5, except that: The rope groove 32 and the guide rope 6 are engaged and fixed by replacing frictional engagement through tooth-to-tooth meshing (i.e., tooth-shaped meshing); For example, the friction teeth 33 within the rope groove 32 are evenly arranged circumferentially, giving the entire rope groove 32 a tooth-like structure similar to an internal gear. Correspondingly, the outer surface of the guide rope 6 is machined with meshing teeth or grooves that match the friction teeth 33. When the guide rope 6 is embedded in the rope groove 32, the tooth surfaces of both interlock, forming a precise tooth-like fit.

[0040] Example 7 includes all the contents of any one of Examples 1 to 6, except that: The adjustable one-way switch 4 includes a handheld part 42 and a locking part 43 integrated together. There is no shaft hole 41 and a rotating shaft inside between the handheld part 42 and the locking part 43. The adjustable one-way switch 4 is linearly or arc-shapedly slidably connected to the second mold base 2. The reset spring can be a compression spring or a tension spring, with both ends connected to the adjustable one-way switch 4 and the second mold base 2 respectively. The elastic force of the reset spring pushes the adjustable one-way switch 4 to slide and reset in a linear or arc shape, so that under normal conditions, the free end of the locking part 43 of the adjustable one-way switch 4 is unidirectionally locked to the back teeth 31 on the side wall or circumferential surface of the main guide wheel 3.

[0041] The limiting protrusion (or limiting groove) is located within the linear or arcuate movement path of the limiting protrusion 46. The limiting protrusion (or limiting groove) and the limiting protrusion 46 work together to limit the movement range of the adjustable one-way switch 4 and prevent the adjustable one-way switch 4 from moving excessively relative to the second mold base 2.

[0042] like Figure 1As shown, any one of the tent canopy structures from Embodiment 1 to Embodiment 7 is applied to the folding frame 100 of the tent. Other structures of the folding frame 100 are existing technologies and will not be described in detail, such as the "Fully Foldable Tent Top Frame" disclosed in CN2568773Y and the "Side-Pull Cord Tent Top Module Structure" disclosed in CN204899423U. When the second module 2 is relatively close to and fits against the first module 1, the folding frame 100 is unfolded; when the second module 2 is relatively far away from the first module 1, the folding frame 100 is folded up.

[0043] The embodiments described above are merely illustrative of specific implementations of the present invention, and while the descriptions are detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A tent canopy structure, characterized in that, The device includes a first mold base (1), a second mold base (2), and a guide rope (6). The inner cavity of the second mold base (2) is rotatably connected to a main guide wheel (3). The main guide wheel (3) has a rope groove (32) and a reverse tooth (31). The first mold base (1) and the second mold base (2) are connected by the guide rope (6). The free end of the guide rope (6) extends to the outside, and the guide rope (6) is wrapped around the rope groove (32) of the main guide wheel (3). An adjustable one-way switch (4) is movably connected to the second mold base (2). The attitude of the adjustable one-way switch (4) is adjusted so that one end of it engages or disengages with the reverse tooth (31) on the main guide wheel (3) in one direction. When the adjustable one-way switch (4) engages with the reverse tooth (31) on the main guide wheel (3), the guide rope (6) is fixed relative to the main guide wheel (3) by the biting force between the guide rope (6) and the rope groove (32) of the main guide wheel (3).

2. The tent canopy structure according to claim 1, characterized in that, The second mold base (2) has a through groove (23) on its side wall, and the hand-held end of the adjustable one-way switch (4) extends to the outside through the through groove (23).

3. The tent canopy structure according to claim 1, characterized in that, The inner cavity of the second mold base (2) is provided with an upper guide wheel (7) and a lower guide wheel (8) located on the periphery of the main guide wheel (3). The upper guide wheel (7) and the lower guide wheel (8) are used to press the guide rope (6) into the rope groove (32) of the main guide wheel (3).

4. The tent canopy structure according to claim 1, characterized in that, The reverse teeth (31) are disposed on the circumferential surface or side surface of the main guide wheel (3).

5. A tent canopy structure according to claim 1, characterized in that, The engagement force between the guide rope (6) and the rope groove (32) of the main pulley (3) is achieved by frictional engagement or toothed engagement.

6. A tent canopy structure according to claim 5, characterized in that, When the rope groove (32) and the guide rope (6) are fixed by frictional engagement, friction teeth (33) are staggered along the circumferential direction on the opposite side walls of the rope groove (32); when the rope groove (32) and the guide rope (6) are engaged by toothed engagement, the friction teeth (33) in the rope groove (32) are arranged in a circumferentially uniform structure, and the guide rope (6) has meshing teeth or meshing grooves that cooperate with the friction teeth (33) in the rope groove (32).

7. A tent canopy structure according to claim 1, characterized in that, The adjustable one-way switch (4) has a hook part (44) on its side wall protrusion, and the second mold base (2) is provided with a normally open fixing hook (5). Adjust the posture of the adjustable one-way switch (4) so ​​that the hook part (44) is engaged and fixed or separated from the normally open fixing hook (5).

8. A tent canopy structure according to claim 1 or 7, characterized in that, The adjustable one-way switch (4) includes a hand-held part (42) and a locking part (43) integrated together. The end of the locking part (43) is used to engage or disengage with the reverse teeth (31) on the main guide wheel (3) in one direction. The hand-held part (42) extends to the outside and the side wall of the hand-held part (42) is provided with friction texture (45).

9. A tent canopy structure according to claim 1, characterized in that, It also includes a reset spring, which is used to push the adjustable one-way switch (4) to maintain the locking end of the adjustable one-way switch (4) in one-way engagement with the reverse teeth (31) on the circumferential surface of the main guide wheel (3).

10. A tent canopy structure according to claim 1, characterized in that, The main guide wheel (3) with reverse teeth (31) is a ratchet, and the adjustable one-way switch (4) is a pawl; the fixed end of the guide rope (6) is fixedly connected to the first mold base (1) or the second mold base (2), the middle section of the guide rope (6) is connected to the first mold base (1) and the second mold base (2), and the free end of the guide rope (6) extends out from the second mold base (2) or the first mold base (1).

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