Arc-shaped telescopic rigid frame pole and spherical tent

Abstract

The utility model relates to a kind of arc telescopic rigid frame pole and spherical tent, including the first arc hollow pole being arc and rigid structure, and the second arc hollow pole being arc and rigid structure in the telescopic pole structure formed by sliding in the first arc hollow pole, the straight surface of the first arc hollow pole and the second arc hollow pole inward bending side is provided with from one end head to the straight surface of other end head along the arc line extension direction, the utility model the utility model is formed by telescopic pole structure of the first arc hollow pole and the second arc hollow pole being arc and rigid structure, when the tent of assembling composition spherical structure, deformation resistance effect is good;The inward bending side of the first arc hollow pole and the second arc hollow pole is set to straight surface, and it is favorable to improve its overall bending resistance.

Description

Technical Field

[0001] This utility model relates to the field of tent frame poles and tent technology, specifically to an arc-shaped telescopic rigid frame pole and a spherical tent. Background Technology

[0002] As the core carrier of temporary architecture, tents have undergone multiple iterations in structural evolution, from simple triangular supports and dome-shaped mesh shells to air domes. Traditional tent structures, represented by multi-pole cross-bracing (such as the classic dome type), primarily rely on the prestressed deformation of flexible poles (such as common fiberglass poles) to achieve overall stability. While this type of structure offers significant lightweight advantages, it reveals several drawbacks in practical applications: weak wind resistance, prone to instability under strong winds, and insufficient overall structural rigidity, making it susceptible to inelastic deformation under external forces, affecting user experience and lifespan.

[0003] Spherical structures are considered ideal for resisting uneven loads such as wind pressure and snow loads due to their perfect geometric symmetry and uniform stress distribution. However, to achieve foldable storage, existing spherical tents typically still use fiberglass as their frame poles, which has high elasticity. The inherent properties of this material mean that although the assembled structure is spherical, it is difficult to achieve ideal rigidity. Under load, it will still deform significantly, greatly reducing its stability and shape retention.

[0004] Therefore, in order to solve the problem of easy deformation of traditional flexible rod structures, there is an urgent need for a rigid structural rod material, and based on this, to construct a truly rigid spherical tent structure. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an arc-shaped telescopic rigid frame pole and a spherical tent to solve the aforementioned problems.

[0006] This utility model provides the following technical solution:

[0007] An arc-shaped telescopic rigid frame includes a first arc-shaped hollow rod with an arc shape and a rigid structure, and a second arc-shaped hollow rod with an arc shape and a rigid structure that slides within the first arc-shaped hollow rod to form a telescopic rod structure. The inwardly bent side of both the first and second arc-shaped hollow rods is provided with a straight surface extending from one end to the other end along the arc direction.

[0008] The first arc-shaped hollow rod has a positioning hole and a snap-fit ​​connector at one end. The second arc-shaped hollow rod has a positioning protrusion that matches the positioning hole at one end. The second arc-shaped hollow rod slides outward relative to the first arc-shaped hollow rod and is fixedly connected to the positioning protrusion through the snap-fit ​​connector. The positioning protrusion is dislodged from the positioning hole through the snap-fit ​​connector. The second arc-shaped hollow rod slides inward relative to the first arc-shaped hollow rod and retracts inward.

[0009] Preferably, one end of the second arc-shaped hollow rod is provided with a guide member that is larger than the size of the second arc-shaped hollow rod, and the guide member is placed in the inner cavity of the first arc-shaped hollow rod to guide sliding.

[0010] Preferably, the snap-fit ​​connector includes a tube fixed to the outer end of the first arc-shaped hollow rod, and a button is movably connected to the tube corresponding to the positioning hole position; a second through hole is opened on the second arc-shaped hollow rod, a spring plate is built into the second arc-shaped hollow rod, the positioning protrusion is disposed on the spring plate, the positioning protrusion tends to protrude outward through the second through hole under the push of the elastic force of the spring plate, and pressing the button causes the positioning protrusion to retract and hide in the inner cavity of the second arc-shaped hollow rod.

[0011] Preferably, a limiting groove is provided on the tube body, and a limiting protrusion is provided on the button that moves linearly within the limiting groove.

[0012] Preferably, the first arc-shaped hollow rod has a first through hole, and the tube body is provided with a cantilever hook with one end suspended in the air. The free end of the cantilever hook is inserted into the first through hole and contacts the outer wall of the second arc-shaped hollow rod.

[0013] Preferably, the guide element is in transition fit with the inner cavity of the first arc-shaped hollow rod.

[0014] Preferably, the outer side wall of the guide is uniformly provided with wedge-shaped portions.

[0015] Preferably, the cross-sections of the first and second arc-shaped hollow rods are both "D" shaped structures, and the "D" shaped structure is formed by bending and welding, with the welding position located in the middle of the flat surface.

[0016] Preferably, the outer contour of the second arc-shaped hollow rod is adapted to the open end of the tube body, and the open end of the tube body is smaller than the guide.

[0017] A spherical tent includes a tent frame and a tent fabric connected to the tent frame, wherein the tent frame includes a canopy and multiple arc-shaped telescopic rigid poles, with one end of the multiple arc-shaped telescopic rigid poles connected to the canopy.

[0018] This utility model has the following beneficial technical effects:

[0019] This utility model uses a telescopic rod structure composed of a first arc-shaped hollow rod and a second arc-shaped hollow rod, which are arc-shaped and have a rigid structure. This structure provides good resistance to deformation when assembling a tent with a spherical structure.

[0020] The inwardly bent side of the first and second arc-shaped hollow bars is set as a flat surface, which helps to improve their overall bending resistance.

[0021] A guide with a slightly larger cross-section is provided at one end of the second arc-shaped hollow rod. The guide prevents the end of the second arc-shaped hollow rod from directly contacting the inner wall of the first arc-shaped hollow rod, making the sliding smoother. In addition, the guide can ensure that a certain distance is maintained between the first and second arc-shaped hollow rods, avoiding scratches during the extension and retraction sliding process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the spherical tent structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the arc-shaped telescopic rigid frame pole in its extended state according to this utility model.

[0024] Figure 3 This is a side view of the first arc-shaped hollow rod of this utility model;

[0025] Figure 4 This is a three-dimensional sectional view of the second arc-shaped hollow rod of this utility model;

[0026] Figure 5 for Figure 4 A magnified view of part A;

[0027] Figure 6 This is a schematic diagram of the guide structure of this utility model;

[0028] Figure 7 This is a three-dimensional sectional view of the first arc-shaped hollow rod of this utility model;

[0029] Figure 8 for Figure 7 A magnified view of part B;

[0030] Figure 9 This is a schematic diagram of the snap-fit ​​connector structure of this utility model.

[0031] The attached figures are labeled as follows:

[0032] 100. Arc-shaped telescopic rigid frame pole; 200. Umbrella head;

[0033] 1. First arc-shaped hollow rod; 11. Positioning hole; 12. First through hole; 2. Second arc-shaped hollow rod; 21. Second through hole; 22. Guide; 221. Wedge-shaped part; 23. Spring plate; 24. Positioning protrusion; 3. Snap-fit ​​connector; 31. Tube body; 311. Limiting groove; 32. Button; 321. Limiting protrusion; 33. Cantilever hook. Detailed Implementation

[0034] 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.

[0035] Example:

[0036] A spherical tent includes a tent frame and a tent fabric attached to the tent frame.

[0037] The tent frame, such as Figure 1 As shown, it includes an umbrella head 200 and multiple arc-shaped telescopic rigid frame poles 100 connected at one end to the umbrella head 200. The arc-shaped telescopic rigid frame poles 100 are rigid structures with strong resistance to deformation, and the arc-shaped telescopic rigid frame poles 100 are arc-shaped in general.

[0038] Among them, the arc-shaped telescopic rigid frame rod 100, such as Figures 2 to 9 As shown, it includes:

[0039] The system comprises a first arc-shaped hollow rod 1 with a rigid structure, and a second arc-shaped hollow rod 2 with a rigid structure. The arc of the second arc-shaped hollow rod 2 matches that of the first arc-shaped hollow rod 1. The second arc-shaped hollow rod 2 slides along the arc of the first arc-shaped hollow rod 1 to achieve extension and retraction. The first arc-shaped hollow rod 1 and the second arc-shaped hollow rod 2 can be made of steel pipe.

[0040] There is a certain gap between the first arc-shaped hollow pole 1 and the second arc-shaped hollow pole 2. Specifically, the distance between the inner wall of the first arc-shaped hollow pole 1 and the second arc-shaped hollow pole 2 is 5mm. This solves the problem of uneven extension and retraction caused by processing errors in the first arc-shaped hollow pole 1 and the second arc-shaped hollow pole 2, while ensuring that the support strength between the upper and lower poles of the tent telescopic frame remains basically consistent.

[0041] like Figure 3As shown, the first arc-shaped hollow rod 1 and the second arc-shaped hollow rod 2 have a straight surface extending from one end to the other along the arc direction on the side where they bend inward. In this embodiment, the cross-sections of the first arc-shaped hollow rod 1 and the second arc-shaped hollow rod 2 are both "D"-shaped structures. The "D"-shaped structure is a circular structure with a chamfered corner on one side, and the straight surface in the "D"-shaped structure is located on the side of the first arc-shaped hollow rod 1 that bends inward. This design, while limiting the relative rotation of the first arc-shaped hollow rod 1 and the second arc-shaped hollow rod 2, helps to improve the ability of the first arc-shaped hollow rod 1 and the second arc-shaped hollow rod 2 to resist further inward bending and prevent deformation.

[0042] The first arc-shaped hollow rod 1 and the second arc-shaped hollow rod 2 are bent and welded to form a "D"-shaped structure, with the welding position located in the middle of the flat surface. A protective layer is provided on the outer surface of the first arc-shaped hollow rod 1 and the second arc-shaped hollow rod 2 to maintain the flatness of the hollow rod surface and for corrosion protection.

[0043] like Figures 7 to 9 As shown, a snap-fit ​​connector 3 is fixedly provided at one end of the first arc-shaped hollow rod 1 near the second arc-shaped hollow rod 2, and a positioning hole 11 and two first through holes 12 are provided at one end of the first arc-shaped hollow rod 1 near the second arc-shaped hollow rod 2. The two first through holes 12 are opened on opposite sides of the first arc-shaped hollow rod 1, and the positioning hole 11 is located between the two first through holes 12.

[0044] The snap-fit ​​connector 3 includes a tube body 31, which is fixed to the outer side wall of the end of the first arc-shaped hollow rod 1. A button 32 is movably connected to the tube body 31, moving closer to or further away from the positioning hole 11. A limiting groove 311 is formed on the side wall of the tube body 31, and a limiting protrusion 321 is provided on the outer side wall of the button 32. The cooperation of the limiting groove 311 and the limiting protrusion 321 guides the button 32 to move linearly relative to the tube body 31. A cantilever hook 33 is provided on the side wall of the tube body 31. The free end of the cantilever hook 33 is designed to be suspended and has a hook that can be inserted into the first through hole 12. The cantilever hook 33 has a certain elastic deformation capability.

[0045] like Figures 4 to 6 As shown, a guide 22 is fixedly installed at one end of the second arc-shaped hollow rod 2 near the first arc-shaped hollow rod 1. The guide 22 can be made of materials such as plastic or rubber. The guide 22 is designed to be slightly larger than the second arc-shaped hollow rod 2. The outer contour of the guide 22 is adapted to and transitionally fitted with the inner cavity of the first arc-shaped hollow rod 1. Multiple sets of wedge-shaped portions 221 are evenly arranged on the sidewall of the guide 22 that contacts the inner wall of the first arc-shaped hollow rod 1. The variable diameter of the wedge-shaped portions 221 facilitates smooth insertion, effectively reduces frictional resistance, compensates for manufacturing and assembly tolerances, and provides a certain damping or sealing effect through elastic deformation during insertion.

[0046] The outer contour of the second arc-shaped hollow rod 2 is adapted to the open end of the tube body 31. The open end of the tube body 31 is slightly smaller than the guide 22 to prevent the guide 22 from detaching from the inner cavity of the first arc-shaped hollow rod. A spring plate 23 is provided in the inner cavity of the second arc-shaped hollow rod 2. A positioning protrusion 24 is provided on one side of the spring plate 23. The free end of the positioning protrusion 24 has a spherical structure. A second through hole 21 is opened near the guide 22 in the second arc-shaped hollow rod 2. The elastic force of the spring plate 23 pushes the positioning protrusion 24 out of the inner cavity of the second arc-shaped hollow rod 2 through the second through hole 21. By pressing the button 32, the positioning protrusion 24 is temporarily hidden in the inner cavity of the second arc-shaped hollow rod 2 through the second through hole 21.

[0047] Working principle:

[0048] The second arc-shaped hollow rod 2 is guided by the guide member 22 at its end to move within the cavity of the first arc-shaped hollow rod 1, so that the second arc-shaped hollow rod 2 and the first arc-shaped hollow rod 1 form a telescopic rod structure. The design of the guide member 22 can avoid scratches and collisions caused by direct contact between the second arc-shaped hollow rod 2 and the first arc-shaped hollow rod 1 during sliding, and is conducive to smooth telescopic movement.

[0049] When the positioning protrusion 24 of the second arc-shaped hollow rod 2 moves relative to the positioning hole 11, the positioning protrusion 24 is pushed into the positioning hole 11 by the elastic force of the spring plate 23, thereby realizing that the second arc-shaped hollow rod 2 and the first arc-shaped hollow rod 1 form an arc-shaped telescopic rigid frame rod 100 with a fixed length.

[0050] By manually pressing button 32 with external force, the contacting positioning protrusion 24 is pushed out of the positioning hole 11 and retracted into the inner cavity of the second arc-shaped hollow rod 2, thereby shortening the length of the combination of the second arc-shaped hollow rod 2 and the first arc-shaped hollow rod 1.

[0051] Two sets of cantilever hooks 33 are located on opposite sides of the second arc-shaped hollow rod 2. The free ends of the cantilever hooks 33 are normally kept in contact with the outer wall of the second arc-shaped hollow rod 2. The clamping and limiting of the free ends of the two sets of cantilever hooks 33 can further ensure that a small distance is maintained between the inner wall of the second arc-shaped hollow rod 2 and the outer wall of the first arc-shaped hollow rod 1.

[0052] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An arc-shaped telescopic rigid frame pole, characterized in that: It includes a first arc-shaped hollow rod (1) with an arc shape and a rigid structure, and a second arc-shaped hollow rod (2) with an arc shape and a rigid structure that slides inside the first arc-shaped hollow rod (1) to form a telescopic rod structure. Both the first arc-shaped hollow rod (1) and the second arc-shaped hollow rod (2) have a straight surface extending from one end to the other end along the arc direction on the side of the inward bending. The first arc-shaped hollow rod (1) has a positioning hole (11) at one end and a snap-fit ​​connector (3) at the other end. The second arc-shaped hollow rod (2) has a positioning protrusion (24) that matches the positioning hole (11) at one end. The second arc-shaped hollow rod (2) slides outward relative to the first arc-shaped hollow rod (1) and is fixedly connected to the positioning protrusion (24) through the snap-fit ​​connector (11). The positioning protrusion (24) is dislodged from the positioning hole (11) through the snap-fit ​​connector (3). The second arc-shaped hollow rod (2) slides inward relative to the first arc-shaped hollow rod (1).

2. The arc-shaped telescopic rigid frame pole according to claim 1, characterized in that, One end of the second arc-shaped hollow rod (2) is provided with a guide (22) that is larger than the size of the second arc-shaped hollow rod (2), and the guide (22) is placed in the inner cavity of the matching first arc-shaped hollow rod (1) for guiding sliding.

3. The arc-shaped telescopic rigid frame pole according to claim 2, characterized in that, The snap-fit ​​connector (3) includes a tube (31) fixed to the outer end of the first arc-shaped hollow rod (1), and a button (32) is movably connected to the tube (31) at the position corresponding to the positioning hole (11); a second through hole (21) is opened on the second arc-shaped hollow rod (2), and a spring plate (23) is built into the second arc-shaped hollow rod (2). The positioning protrusion (24) is set on the spring plate (23). Under the elastic force of the spring plate (23), the positioning protrusion (24) tends to protrude outward through the second through hole (21). Pressing the button (32) causes the positioning protrusion (24) to retract and hide in the inner cavity of the second arc-shaped hollow rod (2).

4. The arc-shaped telescopic rigid frame pole according to claim 3, characterized in that, The tube body (31) has a limiting groove (311) and the button (32) has a limiting protrusion (321) that moves linearly within the limiting groove (311).

5. The arc-shaped telescopic rigid frame pole according to claim 3, characterized in that, The first arc-shaped hollow rod (1) has a first through hole (12), and the tube body (31) is provided with a cantilever hook (33) with one end suspended. The free end of the cantilever hook (33) is inserted into the first through hole (12) and contacts the outer wall of the second arc-shaped hollow rod (2).

6. The arc-shaped telescopic rigid frame pole according to claim 2, characterized in that, The guide (22) is fitted with the inner cavity of the first arc-shaped hollow rod (1).

7. The arc-shaped telescopic rigid frame pole according to claim 6, characterized in that, The guide (22) has wedge-shaped portions (221) evenly distributed on its outer side wall.

8. The arc-shaped telescopic rigid frame pole according to claim 1, characterized in that, The first arc-shaped hollow rod (1) and the second arc-shaped hollow rod (2) both have a "D" shaped cross section and are formed by bending and welding. The welding position is located in the middle of the flat surface.

9. The arc-shaped telescopic rigid frame pole according to claim 3, characterized in that, The outer contour of the second arc-shaped hollow rod (2) is adapted to the open end of the tube body (31), and the open end of the tube body (31) is smaller than the guide (22).

10. A spherical tent, characterized in that: The tent includes a tent frame and a tent fabric connected to the tent frame, wherein the tent frame includes an umbrella head (200) and multiple arc-shaped telescopic rigid frame poles as described in any one of claims 1-9, with one end of the multiple arc-shaped telescopic rigid frame poles connected to the umbrella head (200).

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