An automatic deployment inflatable tent automatic tent frame

Abstract

This invention belongs to the field of tent technology, specifically an automatically deployable inflatable tent frame, including a fixed cover. An deployment mechanism is installed on the inner walls of the fixed cover. A sliding rod is fixedly installed at the bottom of the fixed cover, and a sliding cylinder is slidably installed on the outer side of the sliding rod. A U-shaped plate is moved downwards via a sliding ring. During the downward movement of the U-shaped plate, the angle of the rotating rod changes, causing the fixed head to tilt outwards. The U-shaped plate and the rotating rod are parallel. The rotating rod drives the first connecting rod to rotate, which in turn drives the two drive gears to rotate. The drive gears then drive the transmission gears to rotate, which in turn drive the second connecting rod to rotate. Finally, the second connecting rod drives the second sleeve and the connecting bracket to rotate, thereby reducing excessive material consumption and lowering material usage costs.

Description

Technical Field

[0001] This invention belongs to the field of tent technology, specifically an automatic tent frame for an automatically deploying inflatable tent. Background Technology

[0002] A tent typically consists of a tent fabric and a tent frame for supporting the tent fabric. The tent frame is composed of several foldable poles. To unfold the tent, the tent frame is usually bent outward and expanded, along with the fixed tent fabric. At this time, the unfolded tent fabric is still in a loose state. Then, a specific inflation device is used to inflate the tent fabric to make it taut.

[0003] A patent application with publication number CN102071832A discloses a gas spring quick-release tent, which includes a gas spring. The gas spring helps to generate relative movement between the movable part and the fixed part. The gas spring pushes the movable part, while the fixed part is fixed. When the movable part moves, the angle between the diagonal bar and the support pole changes. At this time, the support pole can be unfolded from the folded state. Moreover, due to the position limitation of the tent fabric, the support pole always generates an elastic restoring force after unfolding, thus supporting the tent fabric. When the diagonal bar, the gas spring, and the support pole are unfolded, they form a triangle. Triangles are relatively stable. Multiple support poles, multiple diagonal bars, and a gas spring form a support structure with multiple triangles spliced ​​together, making the support more stable and preventing deflection. Thus, the support frame can be automatically unfolded through the telescopic function of the gas spring, which is convenient to use and saves effort.

[0004] The above technical solution still has some problems in actual work. During the tent deployment process, the tent frame is bent to drive the inner tent fabric to expand for use. After the tent has been used for a long time, the frame will bend repeatedly, which will cause metal fatigue and damage to the frame or breakage. The entire frame needs to be replaced, which leads to waste of materials and increases the cost of material use.

[0005] Therefore, the present invention provides an automatic tent frame for an automatically deploying inflatable tent. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides an automatically deployable inflatable tent frame, including a fixed cover, an deployment mechanism installed around the fixed cover, a sliding rod fixedly installed at the bottom of the fixed cover, a sliding cylinder slidably installed on the outer side of the sliding rod, a fixed cylinder slidably installed on the outer side of the sliding cylinder, a sliding ring provided on the outer side of the fixed cylinder, multiple U-shaped plates fixedly installed on the outer side of the sliding ring, a rotating rod rotatably installed on the outer side of the U-shaped plates, a retraction mechanism installed inside the fixed cylinder, multiple connecting columns fixedly installed at the top of the sliding ring, and a top cover fixedly installed at the top of the multiple connecting columns.

[0008] The unfolding mechanism includes a fixed head, which is rotatably connected to the inner wall of the fixed cover. A telescopic rod is fixedly connected to the bottom end of the fixed head. A connecting cylinder is slidably connected to the outer side of the telescopic rod. A first sleeve is fixedly connected to the outer side of the connecting cylinder. A first connecting rod is rotatably connected to the inner wall of the first sleeve. A rotating rod is fixedly connected to the outer side of the first connecting rod. Two drive gears are fixedly connected to the outer side of the first connecting rod. A second connecting rod is movably connected to the inner wall of the connecting cylinder. The second connecting rod is located below the first connecting rod. Two transmission gears are fixedly connected to the outer side of the second connecting rod. The drive gears mesh with the transmission gears. Second sleeves are fixedly connected to both ends of the second connecting rod. A connecting bracket is threadedly connected to the inner wall of the second sleeve.

[0009] Preferably, the outer front and rear ends of the sliding cylinder are provided with a first sliding groove, the inner wall of the first sliding groove is slidably connected to a slider, the inner wall of the sliding ring is provided with a second sliding groove corresponding to the first sliding groove, the inner wall of the second sliding groove is slidably connected to a sliding rod, and the opposite end of the sliding rod is fixedly connected to the outer end of the slider.

[0010] The retraction mechanism includes a first gear, two first gears are rotatably connected to the lower inner wall of the sliding rod, a first toothed plate is meshed with the outer end of the first gear, two transmission belts are rotatably connected to the upper inner wall of the sliding rod, a second gear is meshed with the outer end of the transmission belt, and the first gear and the transmission belt are connected through the second toothed plate.

[0011] Preferably, the first connecting rod includes a curved block, with one opposite end of the curved block fixedly connected to the outside of the first connecting rod. The curved block is located below the outside of the rotating rod and between the two driving gears. An operating rod is slidably connected to the inner wall of the connecting cylinder, and the operating rod is located between the first connecting rod and the second connecting rod. Two return springs are fixedly connected to the inner wall of the connecting cylinder, and the return springs are located on the left side of the second connecting rod. A return plate is fixedly connected to the right end of the two return springs. Two limiting tooth blocks are fixedly connected to the inner wall of the second sleeve, and the limiting tooth blocks are located below the transmission gear.

[0012] Preferably, the top of the fixing cover is provided with a circular groove for receiving the top cover.

[0013] Preferably, the outer side of the first connecting rod is rotatably connected to the inner wall of the connecting cylinder, and the first connecting rod is located between the two drive gears.

[0014] Preferably, the opposite ends of the two first toothed plates are fixedly connected to the inner wall of the fixed cylinder, located on the outside of the first gear.

[0015] Preferably, the opposite ends of the two second gears are fixedly connected to the inner wall of the sliding cylinder, and the second gears are located on the outside of the transmission belt.

[0016] Preferably, the inner side of the sliding ring is adapted to the outer side of the fixed cylinder, and the sliding ring slides on the outer side of the fixed cylinder.

[0017] Preferably, the transmission gear is meshed with the limiting gear block.

[0018] Preferably, the outer sides of the plurality of connecting posts are slidably connected to the inner wall of the fixed cover, and the connecting posts are located on the outer sides of the sliding rod and the sliding cylinder.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. The present invention discloses an automatically deployable inflatable tent frame. A sliding ring drives a U-shaped plate to move downwards, which in turn drives a rotating rod to move downwards near the fixed cover. After the sliding ring moves to the bottom of the fixed cylinder, the U-shaped plate and the rotating rod are parallel, and the rotating rod drives the fixed head to rotate around the fixed cover. The fixed head drives the bottom assembly to unfold outwards. During the process of the rotating rod changing from vertical to parallel, the rotating rod drives the first connecting rod to rotate. The first connecting rod drives the two driving gears to rotate. The driving gears and transmission gears mesh with each other, and then the driving gears drive the transmission gears to rotate. The transmission gears drive the second connecting rod to rotate. The connecting rod can rotate or slide on the inner wall. Finally, the second connecting rod drives the second sleeve and the connecting bracket to rotate, so that the tent frame is fully deployed. After the tent frame is deployed, the invention can use a more robust tent frame. When the frame is damaged, only some parts need to be replaced, without replacing the entire frame, thereby reducing excessive material consumption and reducing material usage costs.

[0021] 2. The automatic inflatable tent frame of this invention uses a sliding cylinder to drive two internal first gears downwards. During the downward movement of the two first gears, they mesh with the outer first toothed plate, causing the first gears to rotate. Since the first gears are connected to the transmission belt through the second toothed plate, the first gears drive the transmission belt to rotate. While the transmission belt rotates, it meshes with the outer second gear, causing the transmission belt to drive the sliding rod downwards. When the sliding rod slides to the lower outer side of the fixed cylinder through the sliding ring, it slides into the interior of the sliding cylinder, and the sliding cylinder slides into the interior of the fixed cylinder. At this time, the first gear and the transmission belt are located at the bottom and top of the first toothed plate and the second gear, respectively, and the telescopic rod slides into the interior of the connecting cylinder. In summary, by retracting the sliding rod, sliding cylinder, and fixed cylinder, the height of the top of the tent after it is unfolded is reduced, making it more convenient for people of short stature to fold up the tent.

[0022] 3. The automatic inflatable tent frame of this invention, through the rotation of the first connecting rod driven by the rotating rod, drives the two driving gears on both sides to rotate. The driving gears drive the transmission gears to rotate, and the two transmission gears drive the second connecting rod between the inner walls to rotate. Then, the second connecting rod drives the second sleeve to rotate. When the curved block rotates to the left side of the first connecting rod, the curved block presses the operating rod on the inner wall of the connecting sleeve, causing the operating rod to move to the left, which in turn drives the second connecting rod to move to the left. The second connecting rod drives the transmission gear to move to the left, moving the transmission gear away from the driving gear and canceling the meshing relationship. After the transmission gear moves to the left, it is below the limiting tooth block, which limits the transmission gear. In summary, when the transmission gear rotates, it will drive the bottom connecting bracket to rotate, affecting the unfolded tent, thereby preventing the second connecting rod and the transmission gear from rotating and improving the stability of the tent after it is unfolded. Attached Figure Description

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] Figure 1 This is an exploded view of Embodiment 1 of the present invention;

[0025] Figure 2 This is a diagram showing the unfolded state of the connecting bracket according to Embodiment 1 of the present invention;

[0026] Figure 3 This is a diagram showing the state of the connecting bracket after it has been stored according to Embodiment 1 of the present invention;

[0027] Figure 4 This is a rear view of the unfolding mechanism according to Embodiment 1 of the present invention;

[0028] Figure 5 This is a cross-sectional view of the unfolding mechanism according to Embodiment 1 of the present invention;

[0029] Figure 6 This is a cross-sectional view of the connecting cylinder according to Embodiment 1 of the present invention;

[0030] Figure 7 This is a diagram showing the unfolded state of the retraction mechanism according to Embodiment 1 of the present invention;

[0031] Figure 8 This is a diagram showing the state of the shrinkage mechanism after shrinkage according to Embodiment 1 of the present invention;

[0032] Figure 9 This is a cross-sectional view of the contraction mechanism according to Embodiment 1 of the present invention;

[0033] Figure 10 This is a cross-sectional view of the fixed cylinder according to Embodiment 1 of the present invention;

[0034] In the diagram: 1. Fixed cover; 2. Unfolding mechanism; 21. Fixed head; 22. Telescopic rod; 23. Connecting cylinder; 24. First sleeve; 25. First connecting rod; 251. Curved block; 252. Operating rod; 253. Return spring; 254. Return plate; 255. Limiting tooth block; 26. Drive gear; 27. Second connecting rod; 28. Transmission gear; 29. ​​Second sleeve; 3. Sliding rod; 4. Sliding cylinder; 41. First slide groove; 42. Sliding block; 43. Second slide groove; 44. Sliding rod; 5. Fixed cylinder; 6. Sliding ring; 7. U-shaped plate; 8. Rotating rod; 9. Retraction mechanism; 91. First gear; 92. First toothed plate; 93. Transmission belt; 94. Second gear; 95. Second toothed plate; 10. Connecting bracket; 11. Connecting column; 12. Top cover. Detailed Implementation

[0035] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments. Example 1

[0036] like Figure 1-8 As shown, an automatic inflatable tent frame of the present invention includes a fixed cover 1, an unfolding mechanism 2 installed around the fixed cover 1, a sliding rod 3 fixedly installed at the bottom of the fixed cover 1, a sliding cylinder 4 slidably installed on the outside of the sliding rod 3, a fixed cylinder 5 slidably installed on the outside of the sliding cylinder 4, a sliding ring 6 provided on the outside of the fixed cylinder 5, a plurality of U-shaped plates 7 fixedly installed on the outside of the sliding ring 6, a rotating rod 8 rotatably installed on the outside of the U-shaped plates 7, a retraction mechanism 9 installed inside the fixed cylinder 5, a plurality of connecting posts 11 fixedly installed at the top of the sliding ring 6, and a top cover 12 fixedly installed at the top of the plurality of connecting posts 11.

[0037] The unfolding mechanism 2 includes a fixed head 21, which is rotatably connected to the periphery of the fixed cover 1. A telescopic rod 22 is fixedly connected to the bottom end of the fixed head 21. A connecting cylinder 23 is slidably connected to the outer side of the telescopic rod 22. A first sleeve 24 is fixedly connected to the outer side of the connecting cylinder 23. A first connecting rod 25 is rotatably connected to the inner wall of the first sleeve 24. A rotating rod 8 is fixedly connected to the outer side of the first connecting rod 25. Two drive gears 26 are fixedly connected to the outer side of the first connecting rod 25. A second connecting rod 27 is movably connected to the inner wall of the connecting cylinder 23. The second connecting rod 27 is located below the first connecting rod 25. Two transmission gears 28 are fixedly connected to the outer side of the second connecting rod 27. The drive gears 26 and transmission gears 28 are meshed. A second sleeve 29 is fixedly connected to both ends of the second connecting rod 27. A connecting bracket 10 is threadedly connected to the inner wall of the second sleeve 29.

[0038] Specifically, in the initial state, such as Figure 3As shown, the sliding ring 6 is located below the fixed cover 1 and fits against the bottom of the fixed cover 1. The sliding rod 3, sliding cylinder 4, and fixed cylinder 5 are in an extended state, and the sliding ring 6 is located outside the sliding rod 3. The rotating rod 8 and the U-shaped plate 7 are in an inclined state, as shown. Figure 3 As shown, the tent frame is currently in the folded-down state. First, the connecting brackets 10 are installed into the second sleeve 29. The tent fabric is then wrapped around the outside of the connecting brackets 10, with the top of the tent fabric attached to the bottom of the rotating rod 8. After the tent frame is unfolded and the tent fabric is spread out, as shown... Figure 2 As shown, the tent fabric is wrapped around the inside of the connecting bracket 10. When the tent is unfolded, the top cover 12 is pressed manually, causing the connecting column 11 and the sliding ring 6 to move down. The sliding ring 6 causes the U-shaped plate 7 to move down, and the U-shaped plate 7 causes the rotating rod 8 to move down near the fixed cover 1. After the sliding ring 6 moves down to the bottom of the fixed cylinder 5, the U-shaped plate 7 and the rotating rod 8 are in a parallel state, and the rotating rod 8 causes the fixed head 21 to rotate around the fixed cover 1. The fixed head 21 causes the bottom assembly to unfold in all directions. During the process of changing from vertical to horizontal, the rotating rod 8 drives the first connecting rod 25 to rotate, which in turn drives the two driving gears 26 to rotate. The driving gears 26 mesh with the transmission gears 28, which in turn drives the transmission gears 28 to rotate. The transmission gears 28 then drive the second connecting rod 27 to rotate. The connecting rod 27 can rotate or slide on the inner wall of 23. Finally, the second connecting rod 27 drives the second sleeve 29 and the connecting bracket 10 to rotate, causing the tent frame to fully unfold. After the tent frame is unfolded, Figure 2 The tent frame unfolds the tent fabric fixed inside the frame. The unfolded tent fabric is still loose. By inflating the tent fabric with an air-filling device, the tent fabric is made taut, and the complete tent is ready for use. In summary, this invention can use a more robust tent frame. When the frame is damaged, only some parts need to be replaced, without replacing the entire frame. This reduces excessive material waste and material costs.

[0039] like Figure 5-8 As shown, the outer front and rear ends of the sliding cylinder 4 are provided with a first sliding groove 41, and the inner wall of the first sliding groove 41 is slidably connected to a slider 42. The inner wall of the sliding ring 6 is provided with a second sliding groove 43 corresponding to the first sliding groove 41. The inner wall of the second sliding groove 43 is slidably connected to a slider 44, and the opposite end of the slider 44 is fixedly connected to the outer end of the slider 42.

[0040] The retraction mechanism 9 includes a first gear 91. Two first gears 91 are rotatably connected to the lower inner wall of the sliding rod 3. The outer end of the first gear 91 is meshed with a first toothed plate 92. Two transmission belts 93 are rotatably connected to the upper inner wall of the sliding rod 3. The outer end of the transmission belt 93 is meshed with a second gear 94. The first gear 91 and the transmission belt 93 are connected through a second toothed plate 95.

[0041] Specifically, in the initial state, the sliding rod 3, sliding cylinder 4, and fixed cylinder 5 are in an extended state. The sliding ring 6 is located above and outside the sliding rod 3. The first gear 91 and the transmission belt 93 are located at the top and bottom of the first toothed plate 92 and the second gear 94, respectively. When the tent is unfolded, as the sliding ring 6 moves downward, the sliding ring 6 and the sliding cylinder 4 are connected to the sliding rod 44 through the slider 42. Thus, the sliding ring 6 drives the sliding cylinder 4 to move downward. During the downward movement of the sliding cylinder 4, the sliding cylinder 4 drives the two internal first gears 91 to move downward. During the downward movement of the two first gears 91, they mesh with the outer first toothed plate 92, causing the first gear 91 to rotate. Because the first gear 91 and the transmission belt 93 are connected through the second toothed plate 95... The first gear 91 drives the transmission belt 93 to rotate, and the transmission belt 93 meshes with the outer second gear 94 while rotating, causing the transmission belt 93 to drive the sliding rod 3 to slide downwards. When the sliding rod 3 slides to the lower outer side of the fixed cylinder 5 through the sliding ring 6, the sliding rod 3 slides into the interior of the sliding cylinder 4, and the sliding cylinder 4 slides into the interior of the fixed cylinder 5. At this time, the first gear 91 and the transmission belt 93 are located at the bottom and top of the first toothed plate 92 and the second gear 94, respectively, and the telescopic rod 22 slides into the interior of the connecting cylinder 23. In summary, by retracting the sliding rod 3, the sliding cylinder 4, and the fixed cylinder 5, the height of the top of the tent after it is unfolded is reduced, making it more convenient for people of short stature to fold up the tent.

[0042] like Figure 3-4 As shown, the first connecting rod 25 includes a curved block 251. One end of the curved block 251 is fixedly connected to the outside of the first connecting rod 25. The curved block 251 is located below the outside of the rotating rod 8 and between the two driving gears 26. An operating rod 252 is slidably connected to the inner wall of the connecting cylinder 23. The operating rod 252 is located between the first connecting rod 25 and the second connecting rod 27. Two return springs 253 are fixedly connected to the inner wall of the connecting cylinder 23. The return springs 253 are located to the left of the second connecting rod 27. A return plate 254 is fixedly connected to the right end of the two return springs 253. Two limiting teeth 255 are fixedly connected to the inner wall of the second sleeve 29. The limiting teeth 255 are located below the transmission gear 28.

[0043] Specifically, in the initial state, such as Figure 3 As shown, the curved block 251 is located to the right of the first connecting rod 25, as... Figure 6As shown, the curved block 251 is in its post-motion state. Before the tent is unfolded, the return spring 253 inside the connecting cylinder 23 presses against the return plate 254, keeping the return plate 254 in the rightmost position. The return plate 254 drives the second connecting rod 27 to move to the right. At this time, the drive gear 26 and the transmission gear 28 are meshed. When the tent is unfolded, the first connecting rod 25 is rotated by the rotating rod 8. The first connecting rod 25 drives the drive gears 26 on both sides to rotate. The drive gears 26 drive the transmission gears 28 to rotate. The two transmission gears 28 drive the second connecting rod 27 between the inner walls to rotate. Then, the second connecting rod 27 drives the second sleeve 29 to rotate. When the curved block 251 rotates to the first connecting... When the rod 25 is to the left, the operating rod 252 is pressed against the inner wall of the connecting cylinder 23 by the curved block 251, causing the operating rod 252 to move to the left, which in turn drives the second connecting rod 27 to move to the left. The second connecting rod 27 drives the transmission gear 28 to move to the left, moving the transmission gear 28 away from the driving gear 26 and canceling the meshing relationship. After the transmission gear 28 moves to the left, it is below the limiting tooth block 255, which limits the transmission gear 28. In summary, when the transmission gear 28 rotates, it will drive the bottom connecting bracket 10 to rotate, affecting the unfolded tent. This prevents the second connecting rod 27 and the transmission gear 28 from rotating, thus improving the stability of the tent after it is unfolded.

[0044] like Figure 1-2 As shown, the top of the fixed cover 1 is provided with a circular groove for storing the top cover 12.

[0045] Specifically, a circular groove for receiving the top cover 12 is provided at the top of the fixed cover 1, so that when the top cover 12 moves down, it can be embedded into the circular groove at the top of the fixed cover 1.

[0046] like Figure 3-4 As shown, the outer side of the first connecting rod 25 is rotatably connected to the inner wall of the connecting cylinder 23, and the first connecting rod 25 is located between the two drive gears 26.

[0047] Specifically, during the tent deployment process, the first connecting rod 25 rotates on the inner wall of the connecting cylinder 23, so that when the first connecting rod 25 drives the drive gear 26 to rotate, there will be no deviation, and the stability during rotation will be improved.

[0048] like Figure 8 As shown, the opposite ends of the two first tooth plates 92 are fixedly connected to the inner wall of the fixed cylinder 5, located on the outside of the first gear 91.

[0049] Specifically, the first toothed plate 92 is fixed inside the fixed cylinder 5. When the sliding ring 6 drives the sliding cylinder 4 to move upward, the first gear 91 drives the transmission belt 93 to rotate through the cooperation between the first gear 91 and the first toothed plate 92, thereby realizing the contraction process of the sliding rod 3.

[0050] like Figure 8 As shown, the opposite ends of the two second gears 94 are fixedly connected to the inner wall of the sliding cylinder 4, and the second gears 94 are located on the outside of the transmission belt 93.

[0051] Specifically, the second gear 94 is fixed inside the sliding cylinder 4, so that when the transmission belt 93 rotates, it meshes with the second gear 94, thereby driving the sliding rod 3 to move upward.

[0052] like Figure 7 As shown, the inner side of the sliding ring 6 is matched with the outer side of the fixed cylinder 5 in size, and the sliding ring 6 slides on the outer side of the fixed cylinder 5.

[0053] Specifically, by matching the size of the inner side of the sliding ring 6 with the outer side of the fixing cylinder 5, the sliding ring 6 will not wobble due to size difference after self-locking when it slides to the outer side of the bottom of the fixing cylinder 5, making the tent more stable after it is unfolded.

[0054] like Figure 4 As shown, the transmission gear 28 is meshed with the limiting tooth block 255.

[0055] Specifically, after the transmission gear 28 moves to the left, it engages with the limiting tooth block 255, thereby limiting the transmission gear 28 and preventing it from continuing to rotate.

[0056] like Figure 2 As shown, the outer sides of multiple connecting posts 11 are slidably connected to the inner wall of the fixed cover 1, and the connecting posts 11 are located on the outer sides of the sliding rod 3 and the sliding cylinder 4.

[0057] Specifically, after the second sleeve 29 is unfolded, it drives the connecting bracket 10 on the inner wall to unfold, so that the tent fabric connected to the connecting bracket 10 can be unfolded, thereby making the tent usable.

[0058] Working principle: First, by manually pressing the top cover 12, the top cover 12 causes the connecting column 11 and the sliding ring 6 to move downwards. The sliding ring 6 causes the U-shaped plate 7 to move downwards. The U-shaped plate 7 causes the rotating rod 8 to move downwards near the fixed cover 1. After the sliding ring 6 moves to the bottom of the fixed cylinder 5, the U-shaped plate 7 and the rotating rod 8 are in a parallel state. The rotating rod 8 causes the fixed head 21 to rotate around the fixed cover 1. The fixed head 21 causes the bottom assembly to unfold in all directions. As the rotating rod 8 changes from vertical to parallel, the rotating rod 8 causes the first connecting rod 25 to rotate. The first connecting rod 25 causes the two drive gears 26 to rotate. The drive gears 26 and the transmission gears 28 mesh with each other. Then, the drive gears 26 drive the transmission gears 28 to rotate. The transmission gears 28 drive the second connecting rod 27 to rotate. The connecting rod 27 can rotate or slide on the inner wall of 23. Finally, the second connecting rod 27 causes the second sleeve 29 and the connecting bracket 10 to rotate, so that the tent frame is fully unfolded. After the tent frame is unfolded, Figure 2 The tent frame unfolds the tent fabric fixed inside the frame. Even after unfolding, the tent fabric remains loose. Inflating the fabric with an air-filling device tightens it, making the tent ready for use. In summary, this invention uses a more robust tent frame. If the frame is damaged, only parts need to be replaced, eliminating the need to replace the entire frame, thus reducing excessive material waste and material costs. During tent unfolding, as the sliding ring 6 moves downwards, it connects to the sliding cylinder 4 via a slider 42 and a sliding rod 44. This movement causes the sliding cylinder 4 to move downwards, driving the two internal first gears 91 downwards. These first gears 91 mesh with the outer first toothed plate 92, causing the first gear to engage with the outer first toothed plate 92. When gear 91 rotates, it drives the transmission belt 93 to rotate because the first gear 91 is connected to the transmission belt 93 through the second toothed plate 95. As the transmission belt 93 rotates, it meshes with the second gear 94 on the outside, causing the transmission belt 93 to drive the sliding rod 3 to slide downwards. When the sliding rod 3 slides to the lower outside of the fixed cylinder 5 through the sliding ring 6, it slides into the interior of the sliding cylinder 4, and the sliding cylinder 4 slides into the interior of the fixed cylinder 5. At this time, the first gear 91 and the transmission belt 93 are located at the bottom and top of the first toothed plate 92 and the second gear 94, respectively, and the telescopic rod 22 slides into the interior of the connecting cylinder 23. In summary, by retracting the sliding rod 3, the sliding cylinder 4, and the fixed cylinder 5, the height of the top of the tent after it is unfolded is reduced, making it more convenient for people of short stature to fold up the tent.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatically deployable inflatable tent frame, comprising a fixed cover (1), characterized in that: An unfolding mechanism (2) is installed around the fixed cover (1). A sliding rod (3) is fixedly installed at the bottom of the fixed cover (1). A sliding cylinder (4) is slidably installed on the outside of the sliding rod (3). A fixed cylinder (5) is slidably installed on the outside of the sliding cylinder (4). A sliding ring (6) is provided on the outside of the fixed cylinder (5). Multiple U-shaped plates (7) are fixedly installed on the outside of the sliding ring (6). A rotating rod (8) is rotatably installed on the outside of the U-shaped plate (7). A shrinking mechanism (9) is installed inside the fixed cylinder (5). Multiple connecting columns (11) are fixedly installed at the top of the sliding ring (6). A top cover (12) is fixedly installed at the top of the multiple connecting columns (11). The unfolding mechanism (2) includes a fixed head (21), which is rotatably connected to the inner wall of the fixed cover (1). A telescopic rod (22) is fixedly connected to the bottom end of the fixed head (21). A connecting cylinder (23) is slidably connected to the outer side of the telescopic rod (22). A first sleeve (24) is fixedly connected to the outer side of the connecting cylinder (23). A first connecting rod (25) is rotatably connected to the inner wall of the first sleeve (24). A rotating rod (8) is fixedly connected to the outer side of the first connecting rod (25). Two drive gears (26) are fixedly connected to the outer side of the connecting cylinder (25). A second connecting rod (27) is movably connected to the inner wall of the connecting cylinder (23). The second connecting rod (27) is located below the first connecting rod (25). Two transmission gears (28) are fixedly connected to the outer side of the second connecting rod (27). The drive gear (26) meshes with the transmission gear (28). A second sleeve (29) is fixedly connected to both ends of the second connecting rod (27). A connecting bracket (10) is threadedly connected to the inner wall of the second sleeve (29). The sliding cylinder (4) has a first sliding groove (41) at both the front and rear ends on the outer side. A slider (42) is slidably connected to the inner wall of the first sliding groove (41). The inner wall of the sliding ring (6) is provided with a second sliding groove (43) corresponding to the first sliding groove (41). A sliding rod (44) is slidably connected to the inner wall of the second sliding groove (43). One end of the sliding rod (44) is fixedly connected to the outer end of the slider (42). The retraction mechanism (9) includes a first gear (91), two first gears (91) are rotatably connected to the lower inner wall of the sliding rod (3), the outer end of the first gear (91) is meshed with a first toothed plate (92), two transmission belts (93) are rotatably connected to the upper inner wall of the sliding rod (3), the outer end of the transmission belt (93) is meshed with a second gear (94), and the first gear (91) and the transmission belt (93) are connected through the second toothed plate (95); The first connecting rod (25) includes a curved block (251). The opposite end of the curved block (251) is fixedly connected to the outside of the first connecting rod (25). The curved block (251) is located below the outside of the rotating rod (8). The curved block (251) is located between two driving gears (26). The inner wall of the connecting cylinder (23) is slidably connected to an operating rod (252). The operating rod (252) is located between the first connecting rod (25) and the second connecting rod (27). The inner wall of the connecting cylinder (23) is fixedly connected to two return springs (253). The return springs (253) are located to the left of the second connecting rod (27). The right ends of the two return springs (253) are fixedly connected to a return plate (254). The inner wall of the second sleeve (29) is fixedly connected to two limiting teeth (255). The limiting teeth (255) are located below the transmission gear (28).

2. The automatically deployable inflatable tent frame according to claim 1, characterized in that: The top of the fixed cover (1) is provided with a circular groove for receiving the top cover (12).

3. The automatically deployable inflatable tent frame according to claim 2, characterized in that: The outer side of the first connecting rod (25) is rotatably connected to the inner wall of the connecting cylinder (23), and the first connecting rod (25) is located between the two driving gears (26).

4. The automatically deployable inflatable tent frame according to claim 3, characterized in that: The opposite ends of the two first tooth plates (92) are fixedly connected to the inner wall of the fixed cylinder (5) and located on the outside of the first gear (91).

5. The automatically deployable inflatable tent frame according to claim 1, characterized in that: The two second gears (94) are fixedly connected at opposite ends to the inner wall of the sliding cylinder (4), and the second gears (94) are located on the outside of the transmission belt (93).

6. The automatic deployment inflatable tent frame according to claim 1, characterized in that: The inner side of the sliding ring (6) is adapted to the outer side of the fixed cylinder (5), and the sliding ring (6) slides on the outer side of the fixed cylinder (5).

7. The automatically deployable inflatable tent frame according to claim 1, characterized in that: The transmission gear (28) meshes with the limiting tooth block (255).

8. The automatic deployment inflatable tent frame according to claim 1, characterized in that: Multiple connecting posts (11) are slidably connected to the inner wall of the fixed cover (1) on the outside, and the connecting posts (11) are located on the outside of the sliding rod (3) and the sliding cylinder (4).

Images