Automobile tent structure

Abstract

The invention relates to the technical field of tents, in particular to an automobile tent structure which comprises a tent body and a reinforcing mechanism. The tent body comprises a bottom support, side face supports and a top support, and tarpaulin is arranged on the outer surfaces of the bottom support, the side face supports and the top support. The reinforcing mechanism is arranged at the bottom of the positioning cone and used for reinforcing the positioning cone; by arranging a positioning cone and a reinforcing mechanism, after the tent body is built, the positioning cone connected with a first fixing rope and a second fixing rope can be inserted into a designated position on the ground so that the positioning cone can tension the first fixing rope and the second fixing rope, a rotary knob is rotated, a threaded column is driven to rotate through a miniature speed reducer, and the tent body is fixed. And rotation of the threaded column drives the sliding disc and the extension cone to move downwards under the action of the cylindrical threaded groove, and the extension cone is inserted into the ground, so that the positioning cone can go deep into the ground under the action of the extension cone, and the stability of the tent body during use is further guaranteed.

Description

Technical Field

[0001] This application relates to the field of tent technology, and in particular to automotive tent structures. Background Technology

[0002] Car camping is a sport and tourism activity that uses a car as a vehicle and combines it with equipment such as tents and RVs for outdoor living. It includes forms such as self-driving camping and RV camping. Participants can travel independently by loading tents, sleeping bags, outdoor cooking equipment, and other equipment into their cars. The campsite area is set up with self-driving car, RV, cabin, and tent campsites as needed. The campsite's functional system includes public entertainment areas, management services, and ancillary facilities.

[0003] A car tent is a portable, modular tent that comes with your car. It provides outdoor recreational spaces for car camping enthusiasts. During road trips, you may occasionally encounter extreme weather conditions, and traditional tent structures with ground pegs offer poor stability. Summary of the Invention

[0004] The purpose of this application is to solve the problem of poor stability of tents after assembly, as mentioned in the background art.

[0005] This application provides a car tent structure, including the tent body and a reinforcement mechanism; The tent body includes a bottom support, side supports and a top support. The outer surfaces of the bottom support, side supports and top support are all covered with a tent cloth. The two sides of the tent cloth are provided with tent doors, and the surface of the tent cloth is provided with an outer edge tent cloth corresponding to the tent doors. Two support rods are provided at the ends of the outer edge tent cloth. A first fixing rope is fixed at the top of the support rods. A second fixing rope corresponding to the first fixing rope is provided on the surface of the top support. The other ends of the first fixing rope and the second fixing rope are provided with positioning cones. The reinforcement mechanism is located at the bottom of the positioning cone and is used to reinforce the positioning cone. The positioning cone has a cylindrical cavity inside, and a sliding disk is slidably arranged on the inner wall of the cylindrical cavity. An extension cone is fixed on the lower surface of the sliding disk, and a rotating knob is provided on the upper surface of the positioning cone to drive the extension cone to extend automatically.

[0006] By adopting the above technical solution, the tent can effectively ensure its stability during actual use thanks to the support of the bottom frame, side frames, and top frame.

[0007] Preferably, the bottom support is a rectangular frame assembled from the ends of four crossbars via connecting sleeves, and the side support includes four inclined rods set at the connection points of the ends of the four crossbars via connecting sleeves, and support rods fixed to the surfaces of the two crossbars on both sides via connecting sleeves.

[0008] By adopting the above technical solution, the stability of both sides of the tent body can be effectively guaranteed under the action of the tilting rod and the support rod.

[0009] Preferably, the top support includes a structural rod disposed at the top of two support rods, both ends of the structural rod are provided with four-way sleeves, the ends of the structural rods are respectively provided with two symmetrical extension rods through the four-way sleeves, and the top of the support rod is fixedly connected to the end of the structural rod through the four-way sleeves.

[0010] By adopting the above technical solution, the support rod can be quickly connected to the structural rod under the action of the four-way sleeve.

[0011] Preferably, the top corner of the tarpaulin is provided with four first cylindrical cloth tubes that are sleeved and fixed to four extension rods respectively, and the top upper surface of the tarpaulin is also provided with second cylindrical cloth tubes that are sleeved and fixed to structural rods.

[0012] By adopting the above technical solution, the four extension rods can effectively support the top periphery of the tarpaulin under the action of the first cylindrical cloth tube, while the structural rods can effectively support the top middle position of the tarpaulin under the action of the second cylindrical cloth tube.

[0013] Preferably, a sealing partition is fixed to the inner wall of the cylindrical cavity, a micro reducer is provided on the inner top wall of the cylindrical cavity, a threaded column is fixed to the bottom output shaft of the micro reducer, the top end of the micro reducer extends to the upper surface of the positioning cone, a rotating knob is fixed to the top output end of the micro reducer via a rotating shaft, and a rotating hole is provided on the upper surface of the sealing partition to rotatably connect with the outer surface of the threaded column. A through hole is provided on the inner bottom wall of the cylindrical cavity for the extension cone to slide, and a cylindrical threaded groove is provided on the upper surface of the sliding disk and the top end of the extension cone. The outer surface of the threaded column is threadedly connected to the inner wall of the cylindrical threaded groove.

[0014] By adopting the above technical solution, the sliding disc and the extension cone can be automatically moved downward by the rotation of the threaded column and the action of the cylindrical thread groove.

[0015] Preferably, the lower surface of the sealing partition is fixedly provided with two limiting rods in a circumferential array, and the bottom ends of the two limiting rods are fixedly connected to the inner bottom wall of the cylindrical cavity. The upper surface of the sliding disk is provided with two limiting holes that are slidably connected to the outer surfaces of the two limiting rods respectively.

[0016] By adopting the above technical solution, the stability of the sliding disk and the extension cone can be effectively guaranteed during the downward movement of the sliding disk under the action of the two limit rods.

[0017] Preferably, the top of the positioning cone is provided with a tensioning mechanism for tightening the first and second fixing ropes during the outward extension of the extension cone. The tensioning mechanism includes a limiting ring fixed to the outer surface of the top of the positioning cone. Two connecting rods are symmetrically fixed to the upper surface of the sliding disc, and the tops of the two connecting rods extend to the upper surface of the positioning cone. Mounting seats are fixed to the tops of the two connecting rods. The ends of the first and second fixing ropes are fixedly connected to the surface of the mounting seats. Vertical holes for sliding of the connecting rods are opened on the upper surface of the sealing partition and the inner top wall of the cylindrical cavity.

[0018] By adopting the above technical solution, during the downward movement of the sliding disc, the mounting base can be driven to move downward through the connecting rod. The downward movement of the mounting base can drive the first and second fixed ropes to move downward automatically, thereby achieving tensioning of the first and second fixed ropes during the downward movement of the extension cone.

[0019] Preferably, the outer surface of the extension cone is provided with a limiting mechanism, the limiting mechanism including three sets of sealing cavities equidistantly opened on the surface of the extension cone, each set of four sealing cavities is arranged in a circumferential array on the outer surface of the extension cone, and a piston plate is slidably arranged on the inner wall of the sealing cavity, and a barb block is fixed on the surface of the piston plate.

[0020] By adopting the above technical solution, the movement of the piston plate can drive the barb block to extend outward automatically.

[0021] Preferably, a first return spring is fixedly provided on the surface of the piston plate, and the other end of the first return spring is fixedly connected to the inner wall of the sealing cavity. The middle of two vertically adjacent sealing cavities is connected by a first connecting channel, and the first connecting channel is opened inside the extension cone.

[0022] By adopting the above technical solution, the barb block can be easily reset under the action of the first reset spring.

[0023] Preferably, the limiting mechanism further includes an inflatable airbag ring fixed on the lower surface of the sliding disc, and a connecting cavity opened inside the extension cone. The inner wall of the connecting cavity is provided with a second connecting channel communicating with four sealing cavities. The inner wall of the inflatable airbag ring is provided with a plurality of second return springs in a circumferential array. The surface of the inflatable airbag ring is provided with a connecting tube extending into the connecting cavity. The inner wall of the through hole is provided with four notches corresponding to the barb block.

[0024] By adopting the above technical solution, the airbag ring can be automatically squeezed when the sliding disc moves downward, so that the airbag ring automatically inflates the inside of the sealing cavity, thereby driving the barb block to move outward automatically.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The car tent structure described in this application, by setting the tent body, enables the tent to effectively ensure its stability during actual use under the action of the bottom support, side support and top support; 2. The car tent structure described in this application, by setting a positioning cone and a reinforcement mechanism, after the tent body is assembled, can insert the positioning cone connected to the first fixing rope and the second fixing rope into a designated position on the ground so that it can tighten the first fixing rope and the second fixing rope. By turning the knob, the threaded column is driven to rotate through the micro reducer. The rotation of the threaded column, under the action of the cylindrical thread groove, drives the sliding plate and the extension cone to move downward and insert the extension cone into the ground, so that the positioning cone can penetrate deep into the ground under the action of the extension cone, thereby further ensuring the stability of the tent body when in use. 3. The car tent structure described in this application, by setting a tensioning mechanism, can drive the mounting base to move downward through the connecting rod during the downward movement of the sliding plate. The downward movement of the mounting base can drive the first fixed rope and the second fixed rope to move downward automatically, thereby achieving tensioning of the first fixed rope and the second fixed rope during the downward movement of the extension cone, and further ensuring the stability of the tent body during use. 4. The car tent structure described in this application, by setting a limiting mechanism, allows the downward movement of the sliding disc to compress the airbag ring as the extension cone penetrates deep into the ground. This allows air from the airbag ring to enter the connecting cavity and then the sealing cavity, increasing the pressure within the sealing cavity. This, in turn, drives the piston plate to move outward. The outward movement of the piston plate drives the barb blocks to move outward and into the soil layer. Consequently, the extension cone is effectively fixed in the soil layer by several barb blocks, ensuring the stability of the positioning cone and the extension cone in the soil layer. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a top view structural diagram of the tent body of this application; Figure 3 This is a rear view structural diagram of the tent body in this application; Figure 4 This application Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the three-dimensional structure of the positioning cone in this application; Figure 6 This is a schematic diagram of the locating cone cross-sectional structure of this application; Figure 7 This application Figure 6 Enlarged structural diagram at point B; Figure 8 This is a three-dimensional structural diagram of the miniature speed reducer of this application.

[0027] Explanation of reference numerals in the attached figures: 100. Tent body; 101. Bottom support; 102. Side support; 1021. Tilt pole; 1022. Support pole; 103. Top support; 1031. Structural pole; 1032. Four-way sleeve; 1033. Extension pole; 104. Tent fabric; 105. Tent door; 106. Outer edge of tent fabric; 107. Support pole; 108. First fixing rope; 109. Second fixing rope; 1010. Positioning cone; 1011. First cylindrical fabric tube; 1012. Second cylindrical fabric tube; 200. Reinforcing mechanism; 201. Sliding disc; 202. Extension cone; 203. Rotating knob; 204. Sealing partition; 205. Threaded post; 206. Through hole; 207. Cylindrical threaded groove; 208. Miniature reducer; 209. Limiting rod; 300. Tensioning mechanism; 301. Limit ring; 302. Connecting rod; 303. Mounting base; 400. Limiting mechanism; 401. Sealing cavity; 402. Piston plate; 403. Barb block; 404. First return spring; 405. First connecting channel; 406. Inflatable airbag ring; 407. Connecting cavity; 408. Second connecting channel; 409. Second return spring; 4010. Notch; 4011. Connecting pipe. Detailed Implementation

[0028] The following combination Figures 1 to 8 This application will be described in further detail below. Example 1

[0029] Please refer to the following carefully. Figures 1 to 8The car tent structure includes a tent body 100 and a reinforcement mechanism 200. The tent body 100 includes a bottom support 101, side supports 102, and a top support 103. A canopy 104 is provided on the outer surface of the bottom support 101, side supports 102, and top support 103. Canopy doors 105 are provided on both sides of the canopy 104, and an outer edge canopy 106 corresponding to the canopy doors 105 is provided on the surface of the canopy 104. Two support rods 107 are provided at the ends of the outer edge canopy 106, and a first fixing rope 108 is fixed to the top of each support rod 107. The top support... The surface of 103 is provided with a second fixing rope 109 corresponding to the first fixing rope 108, and the other end of the first fixing rope 108 and the second fixing rope 109 is provided with a positioning cone 1010; the reinforcement mechanism 200 is provided at the bottom of the positioning cone 1010 for reinforcing the positioning cone 1010; the positioning cone 1010 has a cylindrical cavity inside, and a sliding disk 201 is slidably provided on the inner wall of the cylindrical cavity; an extension cone 202 is fixed on the lower surface of the sliding disk 201; and a rotating knob 203 for driving the extension cone 202 to extend automatically is provided on the upper surface of the positioning cone 1010.

[0030] Specifically, in actual use, the tent can effectively ensure its stability through the action of the bottom support 101, the side support 102 and the top support 103.

[0031] Please refer to this carefully. Figure 2 , Figure 3 The bottom support 101 is a rectangular frame assembled from the ends of four crossbars by connecting sleeves. The side support 102 includes four inclined rods 1021 set at the connection points of the ends of the four crossbars by connecting sleeves, and support rods 1022 fixed to the surfaces of the two crossbars on both sides by connecting sleeves.

[0032] Specifically, the stability of both sides of the tent body 100 is effectively guaranteed by the action of the tilting rod 1021 and the support rod 1022.

[0033] Please refer to this carefully. Figure 3 , Figure 4 The top support 103 includes a structural rod 1031 disposed at the top of two support rods 1022. Both ends of the structural rod 1031 are provided with four-way sleeves 1032. The ends of the structural rod 1031 are respectively provided with two symmetrical extension rods 1033 through the four-way sleeves 1032. The top of the support rod 1022 is fixedly connected to the end of the structural rod 1031 through the four-way sleeves 1032.

[0034] Specifically, the four-way sleeve 1032 facilitates the quick connection of the support rod 1022 with the structural rod 1031.

[0035] Please refer to this carefully. Figure 3 and Figure 4 The top corner of the tarpaulin 104 is provided with four first cylindrical cloth tubes 1011 that are connected and fixed to four extension rods 1033 respectively, and the top upper surface of the tarpaulin 104 is also provided with second cylindrical cloth tubes 1012 that are connected and fixed to the structural rods 1031.

[0036] Specifically, under the action of the first cylindrical fabric tube 1011, the four extension rods 1033 can effectively support the top periphery of the tarpaulin 104, while under the action of the second cylindrical fabric tube 1012, the structural rod 1031 can effectively support the top middle position of the tarpaulin 104.

[0037] Please refer to this carefully. Figures 5 to 8 A sealing partition 204 is fixedly installed on the inner wall of the cylindrical cavity. A micro reducer 208 is installed on the sealing partition 204. A threaded post 205 is fixedly installed on the bottom output shaft of the micro reducer 208. The top of the micro reducer 208 extends to the upper surface of the positioning cone 1010. The rotating knob 203 is connected to the input end of the micro reducer 208 through a rotating shaft. Specifically, the micro reducer 208 is a gear reducer. The rotating shaft of the rotating knob 203 is the input shaft of the gear reducer, and the output shaft of the gear reducer is connected to the threaded post 205.

[0038] The upper surface of the sealing partition 204 is provided with a rotating hole that is rotatably connected to the outer surface of the threaded column 205. The inner bottom wall of the cylindrical cavity is provided with a through hole 206 for the extension cone 202 to slide. The upper surface of the sliding disk 201 and the top of the extension cone 202 are provided with a cylindrical threaded groove 207. The outer surface of the threaded column 205 is threadedly connected to the inner wall of the cylindrical threaded groove 207.

[0039] Specifically, the rotation of the threaded column 205, along with the action of the cylindrical threaded groove 207, can cause the sliding disk 201 and the extension cone 202 to move automatically downward.

[0040] Please refer to this carefully. Figure 7 and Figure 8 The lower surface of the sealing partition 204 is fixedly provided with two limiting rods 209 in a circumferential array, and the bottom ends of the two limiting rods 209 are fixedly connected to the inner bottom wall of the cylindrical cavity. The upper surface of the sliding disk 201 is provided with two limiting holes that are slidably connected to the outer surfaces of the two limiting rods 209 respectively.

[0041] Specifically, during the downward movement of the sliding disk 201, the stability of the sliding disk 201 and the extension cone 202 is effectively ensured by the action of the two limit rods 209.

[0042] In this embodiment, by setting up a positioning cone 1010 and a reinforcement mechanism 200, after the tent body 100 is assembled, the positioning cone 1010, which is connected to the first fixing rope 108 and the second fixing rope 109, can be inserted into a designated position on the ground to tighten the first fixing rope 108 and the second fixing rope 109. By rotating the knob 203, the threaded column 205 is driven to rotate through the micro reducer 208. The rotation of the threaded column 205, under the action of the cylindrical threaded groove 207, drives the sliding disc 201 and the extension cone 202 to move downward and insert the extension cone 202 into the ground. This allows the positioning cone 1010 to penetrate deep into the ground under the action of the extension cone 202, thereby further ensuring the stability of the tent body 100 during use. Example 2

[0043] Based on Example 1, referring to Figures 5 to 8 And unlike Example 1, the following is true: Please refer to this carefully. Figure 6 , Figure 7 , Figure 8 The top of the positioning cone 1010 is provided with a tensioning mechanism 300 that tightens the first fixing rope 108 and the second fixing rope 109 during the outward extension of the extension cone 202. The tensioning mechanism 300 includes a limiting ring 301 on the outer surface of the top of the positioning cone 1010 to close one side opening of the cylindrical cavity. In this embodiment, the limiting ring 301 is fixed to the positioning cone 1010 by screw connection so as to facilitate the removal of the limiting ring 301 to install internal components.

[0044] Two connecting rods 302 are symmetrically fixed on the upper surface of the sliding disk 201, and the top ends of the two connecting rods 302 extend to the upper surface of the positioning cone 1010. Mounting seats 303 are fixed on the top ends of the two connecting rods 302. The ends of the first fixing rope 108 and the second fixing rope 109 are fixedly connected to the surface of the mounting seat 303. Vertical holes for sliding of the connecting rods 302 are opened on the upper surface of the sealing partition 204 and the inner top wall of the cylindrical cavity.

[0045] Specifically, during the downward movement of the sliding disc 201, the connecting rod 302 drives the mounting base 303 to move downward. The downward movement of the mounting base 303 can drive the first fixing rope 108 and the second fixing rope 109 to move downward automatically, thereby achieving further tensioning of the first fixing rope 108 and the second fixing rope 109 during the downward movement of the extension cone 202.

[0046] In this embodiment, by setting a tensioning mechanism 300, during the downward movement of the sliding disc 201, the downward movement of the sliding disc 201 can drive the mounting base 303 to move downward through the connecting rod 302. The downward movement of the mounting base 303 can drive the first fixing rope 108 and the second fixing rope 109 to move downward automatically, thereby achieving tensioning of the first fixing rope 108 and the second fixing rope 109 during the downward movement of the extension cone 202, and further ensuring the stability of the tent body 100 during use. Example 3

[0047] Based on Embodiment 1 and Embodiment 2, referring to Figures 5 to 8 And unlike Embodiment 1 and Embodiment 2, the following is true: Please refer to section 6 for details. Figure 7 The outer surface of the extension cone 202 is provided with a limiting mechanism 400. The limiting mechanism 400 includes three sets of sealing cavities 401 that are equidistantly opened on the surface of the extension cone 202. Every four sealing cavities 401 form a group. Each set of sealing cavities 401 is arranged in a circumferential array on the outer surface of the extension cone 202. A piston plate 402 is slidably provided on the inner wall of the sealing cavity 401. A barb block 403 is fixed on the surface of the piston plate 402.

[0048] Specifically, the movement of the piston plate 402 can cause the barb block 403 to automatically extend outward.

[0049] Please refer to this carefully. Figure 6 , Figure 7 A first return spring 404 is fixedly provided on the surface of the piston plate 402, and the other end of the first return spring 404 is fixedly connected to the inner wall of the sealing cavity 401. The middle of two vertically adjacent sealing cavities 401 is connected by a first connecting channel 405, and the first connecting channel 405 is opened inside the extension cone 202.

[0050] Specifically, the barb block 403 can be easily reset under the action of the first reset spring 404.

[0051] Please refer to this carefully. Figure 6 , Figure 7 The limiting mechanism 400 also includes an inflatable airbag ring 406 fixed on the lower surface of the sliding disc 201, and a connecting cavity 407 opened inside the extension cone 202. The inner wall of the connecting cavity 407 is provided with a second connecting channel 408 communicating with the four sealing cavities 401. The inner wall of the inflatable airbag ring 406 is provided with a plurality of second return springs 409 arranged in a circumferential array. The surface of the inflatable airbag ring 406 is provided with a connecting tube 4011 extending into the connecting cavity 407. The inner wall of the through hole 206 is provided with four notches 4010 corresponding to the barb block 403.

[0052] Specifically, when the sliding disc 201 moves downward, it can automatically squeeze the inflatable airbag ring 406, so that the inflatable airbag ring 406 automatically inflates the inside of the sealing cavity 401, thereby driving the barb block 403 to move outward automatically.

[0053] In this embodiment, by setting a limiting mechanism 400, as the tent extends the extension cone 202 deeper into the ground, the downward movement of the sliding disc 201 can compress the inflatable airbag ring 406, allowing the air inside the inflatable airbag ring 406 to enter the connecting cavity 407 and the sealing cavity 401, increasing the pressure inside the sealing cavity 401. This, in turn, drives the piston plate 402 to move outward, which in turn drives the barb blocks 403 to move outward and into the soil layer. This allows the extension cone 202 to be effectively fixed in the soil layer by several barb blocks 403, ensuring the stability of the positioning cone 1010 and the extension cone 202 in the soil layer.

[0054] Working principle: After the tent body 100 is assembled, the positioning cone 1010, connected to the first fixing rope 108 and the second fixing rope 109, can be inserted into a designated position on the ground to initially tighten the first fixing rope 108 and the second fixing rope 109. Turning the knob 203 causes the threaded column 205 to rotate via the micro reducer 208. The rotation of the threaded column 205, under the action of the cylindrical threaded groove 207, causes the sliding disc 201 and the extension cone 202 to move downwards, inserting the extension cone 202 into the ground. This allows the positioning cone 1010 to penetrate deep into the ground under the action of the extension cone 202, further ensuring the stability of the tent body 100 during use. Furthermore, during the downward movement of the sliding disc 201, the downward movement of the sliding disc 201 can drive the mounting base 303 downwards via the connecting rod 302. The downward movement of the mounting base 303 can then drive the first fixing rope 108 and the second fixing rope 109 to move downwards. Rope 108 and the second fixing rope 109 move downwards automatically, thereby further tensioning the first fixing rope 108 and the second fixing rope 109 during the downward movement of the extension cone 202, further ensuring the stability of the tent body 100 during use. At the same time, as the extension cone 202 penetrates deeper into the ground, the downward movement of the sliding disc 201 can compress the inflatable airbag ring 406, allowing the air in the inflatable airbag ring 406 to enter the connecting cavity 407 and the sealing cavity 401, increasing the pressure in the sealing cavity 401. This causes the piston plate 402 to move outwards, which in turn causes the barb blocks 403 to move outwards and into the soil layer. This allows the extension cone 202 to be effectively fixed in the soil layer by several barb blocks 403, ensuring the stability of the positioning cone 1010 and the extension cone 202 in the soil layer.

[0055] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A car tent structure, characterized in that, Includes the tent body (100) and the reinforcement mechanism (200); The tent body (100) includes a bottom support (101), a side support (102) and a top support (103). The outer surfaces of the bottom support (101), the side support (102) and the top support (103) are all provided with a tent cloth (104). The two sides of the tent cloth (104) are provided with tent doors (105), and the surface of the tent cloth (104) is provided with an outer edge tent cloth (106) corresponding to the tent door (105). The end of the outer edge tent cloth (106) is provided with two support rods (107). The top of the support rod (107) is fixed with a first fixing rope (108). The surface of the top support (103) is provided with a second fixing rope (109) corresponding to the first fixing rope (108), and the other end of the first fixing rope (108) and the second fixing rope (109) is provided with a positioning cone (1010). The reinforcement mechanism (200) is located at the bottom of the positioning cone (1010) and is used to reinforce the positioning cone (1010). The positioning cone (1010) has a cylindrical cavity inside, and a sliding disk (201) is slidably arranged on the inner wall of the cylindrical cavity. An extension cone (202) is fixed on the lower surface of the sliding disk (201), and a rotating knob (203) is provided on the upper surface of the positioning cone (1010) for driving the extension cone (202) to extend automatically.

2. The car tent structure according to claim 1, characterized in that, The bottom support (101) is a rectangular frame assembled from the ends of four crossbars by connecting sleeves. The side support (102) includes four inclined rods (1021) set at the ends of the four crossbars by connecting sleeves, and support rods (1022) fixed to the surfaces of the two crossbars on both sides by connecting sleeves.

3. The car tent structure according to claim 2, characterized in that, The top support (103) includes a structural rod (1031) set at the top of two support rods (1022). Both ends of the structural rod (1031) are provided with four-way sleeves (1032), and the ends of the two second fixing ropes (109) are fixedly connected to the surface of the four-way sleeves (1032). The ends of the structural rod (1031) are respectively provided with two symmetrical extension rods (1033) through the four-way sleeves (1032), and the top of the support rod (1022) is fixedly connected to the end of the structural rod (1031) through the four-way sleeves (1032).

4. The car tent structure according to claim 3, characterized in that, The top corner of the tarpaulin (104) is provided with four first cylindrical cloth tubes (1011) that are connected and fixed to four extension rods (1033), and the top upper surface of the tarpaulin (104) is also provided with second cylindrical cloth tubes (1012) that are connected and fixed to structural rods (1031).

5. The car tent structure according to claim 1, characterized in that, The inner wall of the cylindrical cavity is fixedly provided with a sealing partition (204), and the inner top wall of the cylindrical cavity is provided with a micro reducer (208). The bottom output shaft of the micro reducer (208) is fixedly provided with a threaded column (205). The top end of the micro reducer (208) extends to the upper surface of the positioning cone (1010). The rotating knob (203) is fixed to the top output end of the micro reducer (208) through the rotating shaft. The upper surface of the sealing partition (204) is provided with a rotating hole that is rotatably connected to the outer surface of the threaded column (205). The inner bottom wall of the cylindrical cavity is provided with a through hole (206) for the extension cone (202) to slide. The upper surface of the sliding disk (201) and the top end of the extension cone (202) are provided with a cylindrical threaded groove (207). The outer surface of the threaded column (205) is threadedly connected to the inner wall of the cylindrical threaded groove (207).

6. The car tent structure according to claim 5, characterized in that, The lower surface of the sealing partition (204) is fixed with two limiting rods (209) in a circumferential array, and the bottom ends of the two limiting rods (209) are fixedly connected to the inner bottom wall of the cylindrical cavity. The upper surface of the sliding disk (201) is provided with two limiting holes that are slidably connected to the outer surfaces of the two limiting rods (209).

7. The car tent structure according to claim 5, characterized in that, The top of the positioning cone (1010) is provided with a tensioning mechanism (300) that tightens the first fixing rope (108) and the second fixing rope (109) during the outward extension of the extension cone (202). The tensioning mechanism (300) includes a limiting ring (301) fixed on the outer surface of the top of the positioning cone (1010). Two connecting rods (302) are symmetrically fixed on the upper surface of the sliding disk (201), and the tops of the two connecting rods (302) extend to the upper surface of the positioning cone (1010). The tops of the two connecting rods (302) are fixed with mounting seats (303). The ends of the first fixing rope (108) and the second fixing rope (109) are fixedly connected to the surface of the mounting seat (303). The upper surface of the sealing partition (204) and the inner top wall of the cylindrical cavity are provided with vertical holes for the connecting rods (302) to slide.

8. The car tent structure according to claim 5, characterized in that, The outer surface of the extension cone (202) is provided with a limiting mechanism (400). The limiting mechanism (400) includes three sets of sealing cavities (401) equidistantly opened on the surface of the extension cone (202). Every four sealing cavities (401) form a group. Each set of sealing cavities (401) is arranged in a circumferential array on the outer surface of the extension cone (202). A piston plate (402) is slidably provided on the inner wall of the sealing cavity (401). A barb block (403) is fixed on the surface of the piston plate (402).

9. The car tent structure according to claim 8, characterized in that, The piston plate (402) is fixedly provided with a first return spring (404), and the other end of the first return spring (404) is fixedly connected to the inner wall of the sealing cavity (401). The middle of two vertically adjacent sealing cavities (401) is connected by a first connecting channel (405), and the first connecting channel (405) is opened inside the extension cone (202).

10. The car tent structure according to claim 9, characterized in that, The limiting mechanism (400) further includes an inflatable airbag ring (406) fixed on the lower surface of the sliding disc (201) and a connecting cavity (407) opened inside the extension cone (202). The inner wall of the connecting cavity (407) is provided with a second connecting channel (408) communicating with the four sealing cavities (401). The inner wall of the inflatable airbag ring (406) is provided with a plurality of second return springs (409) in a circumferential array. The surface of the inflatable airbag ring (406) is provided with a connecting tube (4011) extending into the connecting cavity (407). The inner wall of the through hole (206) is provided with four notches (4010) corresponding to the barb block (403).

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