A folding table for a roof tent

Abstract

The present invention discloses a folding table for a roof tent, which relates to the technical field of automotive accessories and includes a first roof tent bottom plate, a second roof tent bottom plate, and a third roof tent bottom plate. The first roof tent bottom plate is movably connected to the second roof tent bottom plate through a second hinge, and the second roof tent bottom plate is movably connected to the third roof tent bottom plate through a first hinge. A second support rod is movably installed in the middle of the second roof tent bottom plate. The operation of the present invention is simple, and it is very convenient to turn the roof tent into a double-layer space, thereby realizing an increase in the number of occupants and an increase in functions such as dining, working, and storing items; the automatic folding and unfolding of the second roof tent bottom plate, the table board, and the third roof tent bottom plate can be realized, making the operation more convenient; the control mechanism is provided, and when controlling the driving motor to rotate, the short-circuit problem caused by pressing two ceramic rods simultaneously can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive accessories, and particularly to a folding table for a roof tent. Background Art

[0002] With the popularization of private cars, people's enthusiasm for self-driving tours has been increasing year by year. To meet the needs of travel enthusiasts, roof tents have become the first choice for the majority of travel enthusiasts. It overcomes the problems of traditional tents being relatively wet on the ground and being easily disturbed by crawlers and animals, and it has the advantages of convenient support. Currently, there are various types of roof tents on the market, but due to the limited roof space, the current roof tents cannot be made very large and can accommodate few people. Since the space inside the tent is small, the roof tent can only be used for rest and cannot perform many functions such as dining, working, and storing items.

[0003] In the prior art, the utility model patent with the publication number of CN215717713U discloses a three-fold roof tent. Among them, the bottom plate support mechanism includes a front bottom plate, a middle bottom plate, and a rear bottom plate arranged in sequence; the front bottom plate is hinged to the middle bottom plate, and the middle bottom plate is hinged to the rear bottom plate to realize a three-fold bottom plate; the air column support mechanism is arranged on the top surface of the bottom plate support mechanism; the tarpaulin installation mechanism is arranged on the top surface of the bottom plate support mechanism; the tent fixing mechanism is arranged on the bottom surface of the middle bottom plate for installing the bottom plate support mechanism on the roof; the ladder quick-installation mechanism is arranged on the bottom surface of the front bottom plate away from the first hinge for quickly installing and disassembling the ladder, but this technical solution cannot increase the number of occupants and cannot add functions such as dining, working, and storing items. Summary of the Invention

[0004] To overcome the defects of the above-mentioned prior art, the present invention provides the following technical solution: a folding table for a roof tent, including a first roof tent bottom plate, a second roof tent bottom plate, and a third roof tent bottom plate. The first roof tent bottom plate is movably connected to the second roof tent bottom plate through a second hinge. The second roof tent bottom plate is movably connected to the third roof tent bottom plate through a first hinge. A second support rod is movably installed in the middle of the second roof tent bottom plate. The other end of the second support rod is movably connected to a table board. A first support rod is movably connected to the table board. The other end of the first support rod is movably connected to the second roof tent bottom plate. A tension spring rod is movably installed between the end of the second support rod close to the table board and the end of the first support rod close to the second roof tent bottom plate. A first roller is rotatably installed on the leaf of the second hinge fixedly connected to the second roof tent bottom plate, and a lead wire holder is also fixedly installed on this leaf. A second roller and a wire reel are rotatably installed on the leaf of the first hinge fixedly connected to the second roof tent bottom plate. A flange seat is fixedly installed on the leaf of the first hinge fixedly connected to the third roof tent bottom plate. An installation seat is fixedly installed on the flange seat. A gear disk is rotatably installed in the installation seat. The gear disk and the wire reel are fixed by a shaft. It also includes a control component. The control component includes two insulating shells. Sliding holes are opened in both insulating shells. Ceramic rods are slidably installed in the sliding holes. A top connection conductive plate and a bottom connection conductive plate are fixedly installed on the ceramic rods. First electrode contacts and second electrode contacts are fixedly arranged on both insulating shells. Extrusion plates are fixedly installed on both ceramic rods. A sliding rod is fixedly installed on the insulating shell. A trapezoidal block bracket is slidably installed on the sliding rod. A trapezoidal block that slidably cooperates with the two extrusion plates is fixedly installed on the trapezoidal block bracket.

[0005] Preferably, the telescopic cylinder of the tension spring rod is movably connected to the second support rod, and the telescopic rod of the tension spring rod is movably connected to the first support rod.

[0006] Preferably, a planetary gear bracket is fixedly installed on the installation seat. A driving motor is fixedly installed on the planetary gear bracket. A central gear is fixedly installed on the output shaft of the driving motor. The central gear and the gear disk are in gear transmission through planetary gears.

[0007] Preferably, a stepped through hole is opened on the table board. A permanent magnet is slidably installed in the through hole. A limiting ring for limiting is arranged on the permanent magnet.

[0008] Preferably, the top first electrode contact and the second electrode contact are in contact and cooperation with the top connection conductive plate, and the bottom first electrode contact and the second electrode contact are in contact and cooperation with the bottom connection conductive plate.

[0009] Preferably, a spring is fixedly arranged between the bottom connection conductive plate and the insulating shell. The spring is wound around the ceramic rod.

[0010] Preferably, it further includes a stay wire, one end of the stay wire is fixed to the table board, the other end of the stay wire is fixed to the wire reel, and the stay wire is in driving connection with the lead frame, the first roller and the second roller.

[0011] Preferably, a return spring is wound around the sliding rod, and both ends of the return spring are respectively fixed to the sliding rod and the trapezoidal block bracket.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The operation of the present invention is simple, and it is very convenient to turn the roof tent into a double-layer space, so as to increase the number of occupants and add functions such as dining, working, and storing items; (2) The present invention can realize the automatic folding and unfolding of the second roof tent bottom plate, the table board and the third roof tent bottom plate, making the operation more convenient; (3) The control mechanism provided by the present invention can solve the short-circuit problem caused by pressing two ceramic rods simultaneously when controlling the driving motor to rotate. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is an unfolded view of the overall structure of the present invention.

[0015] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at A in the present invention.

[0016] Figure 4 It is a schematic diagram of the limit ring structure of the present invention.

[0017] Figure 5 It is a diagram showing the installation position of the second roller of the present invention.

[0018] Figure 6 It is a schematic diagram of the structure at the flange seat of the present invention.

[0019] Figure 7 It is a folding diagram of the overall structure of the present invention.

[0020] Figure 8 It is a diagram showing the unfolding process of the overall structure of the present invention.

[0021] Figure 9 It is a schematic diagram of the control component structure of the present invention.

[0022] Figure 10 It is a schematic diagram of the structure at the return spring of the present invention.

[0023] Figure 11 It is a cross-sectional view of the control component structure of the present invention.

[0024] Figure 12 It is a schematic diagram of the trapezoidal block structure of the present invention.

[0025] Figure 13 This is the control circuit diagram of the drive motor of the present invention.

[0026] In the figure: 101 - the first roof tent bottom plate; 102 - the second roof tent bottom plate; 103 - the third roof tent bottom plate; 104 - the first hinge; 105 - the second hinge; 106 - the table board; 107 - the first support rod; 108 - the tension spring rod; 109 - the second support rod; 201 - the first roller; 202 - the lead frame; 203 - the wire; 204 - the second roller; 205 - the wire reel; 206 - the flange seat; 207 - the mounting seat; 208 - the gear disk; 209 - the planetary gear; 210 - the central gear; 211 - the planetary gear bracket; 212 - the drive motor; 213 - the permanent magnet; 2131 - the limit ring; 301 - the insulating shell; 3011 - the sliding hole; 302 - the first electrode contact; 303 - the second electrode contact; 304 - the top connection conductive plate; 305 - the bottom connection conductive plate; 306 - the spring; 307 - the ceramic rod; 308 - the extrusion plate; 309 - the trapezoidal block; 310 - the trapezoidal block bracket; 311 - the sliding rod; 312 - the return spring. Detailed implementation mode

[0027] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation modes.

[0028] As Figures 1 - 13 shown, the present invention provides a folding table for a roof tent, including a first roof tent bottom plate 101, a second roof tent bottom plate 102, and a third roof tent bottom plate 103. The first roof tent bottom plate 101 is movably connected to the second roof tent bottom plate 102 through the second hinge 105, and the second roof tent bottom plate 102 is movably connected to the third roof tent bottom plate 103 through the first hinge 104. The middle part of the second roof tent bottom plate 102 is movably installed with a second support rod 109. The other end of the second support rod 109 is movably connected to a table board 106. The table board 106 is movably connected to a first support rod 107. The other end of the first support rod 107 is movably connected to the second roof tent bottom plate 102. A tension spring rod 108 is movably installed between the end of the second support rod 109 close to the table board 106 and the end of the first support rod 107 close to the second roof tent bottom plate 102. The telescopic cylinder of the tension spring rod 108 is movably connected to the second support rod 109, and the telescopic rod of the tension spring rod 108 is movably connected to the first support rod 107.

[0029] A first roller 201 is rotatably mounted on a leaf of the second hinge 105 fixedly connected to the second roof tent bottom plate 102, and a lead frame 202 is fixedly mounted on this leaf. A second roller 204 and a wire reel 205 are rotatably mounted on a leaf of the first hinge 104 fixedly connected to the second roof tent bottom plate 102. A flange base 206 is fixedly mounted on a leaf of the first hinge 104 fixedly connected to the third roof tent bottom plate 103. An installation base 207 is fixedly mounted on the flange base 206. A gear disc 208 is rotatably mounted in the installation base 207, and the gear disc 208 is fixed to the wire reel 205 by a shaft. A planetary gear support 211 is fixedly mounted on the installation base 207. A drive motor 212 is fixedly mounted on the planetary gear support 211. A central gear 210 is fixedly mounted on the output shaft of the drive motor 212. The central gear 210 is in gear transmission with the gear disc 208 through a planetary gear 209. A stepped through hole is formed in the table board 106, and a permanent magnet 213 is slidably mounted in the through hole. A limiting ring 2131 for limiting is provided on the permanent magnet 213. A pull wire 203 is further included. One end of the pull wire 203 is fixed to the table board 106, and the other end of the pull wire 203 is fixed to the wire reel 205. The pull wire 203 is in transmission connection with the lead frame 202, the first roller 201, and the second roller 204.

[0030] A control component is further included. The control component includes two insulating shells 301. A sliding hole 3011 is formed in each of the two insulating shells 301. A ceramic rod 307 is slidably mounted in the sliding hole 3011. A top connection conductive plate 304 and a bottom connection conductive plate 305 are fixedly mounted on the ceramic rod 307. A first electrode contact 302 and a second electrode contact 303 are fixedly arranged on each of the two insulating shells 301. An extrusion plate 308 is fixedly mounted on each of the two ceramic rods 307. A sliding rod 311 is fixedly mounted on the insulating shell 301. A trapezoidal block support 310 is slidably mounted on the sliding rod 311. A trapezoidal block 309 slidably matched with the two extrusion plates 308 is fixedly mounted on the trapezoidal block support 310. The top first electrode contact 302 and the second electrode contact 303 are in contact fit with the top connection conductive plate 304, and the bottom first electrode contact 302 and the second electrode contact 303 are in contact fit with the bottom connection conductive plate 305. A spring 306 is fixedly arranged between the bottom connection conductive plate 305 and the insulating shell 301, and the spring 306 surrounds the ceramic rod 307. A return spring 312 is wound around the sliding rod 311, and the two ends of the return spring 312 are respectively fixed to the sliding rod 311 and the trapezoidal block support 310.

[0031] The working principle of a folding table for a roof tent disclosed by the present invention is as follows: Unfold the tabletop, manually unfold the first roof tent bottom plate 101, and then start the drive motor 212. The output shaft of the drive motor 212 will drive the central gear 210 to rotate. The rotation of the central gear 210 will drive the planetary gear 209 to rotate. The rotation of the planetary gear 209 will drive the toothed disc 208 to rotate. The rotation of the toothed disc 208 will drive the wire reel 205 to rotate (in this process, all the pull wires 203 wound on the wire reel 205 will be released. After being released, the wire reel 205 continues to rotate and winds it on the wire reel 205 again. After the winding is completed, the wire reel 205 cannot continue to rotate. At this time, the toothed disc 208 cannot rotate. The inability of the toothed disc 208 to rotate will cause the planetary gear 209 and the central gear 210 to not rotate. At this time, the output shaft of the drive motor 212 cannot rotate. Therefore, the housing of the drive motor 212 will be subjected to torsion, and then it is transmitted to the blade of the first hinge 104 connected to the third roof tent bottom plate 103 through the planetary gear support 211, the mounting seat 207, and the flange seat 206. At this time, it will drive the first hinge 104 to drive the third roof tent bottom plate 103 to swing), when the wire reel 205 cannot rotate, it will drive the third roof tent bottom plate 103 to swing. The swing of the third roof tent bottom plate 103 will drive the permanent magnet 213 to move together (it should be noted that the permanent magnet 213 is magnetically connected to the third roof tent bottom plate 103). After the free movement of the permanent magnet 213, the limit ring 2131 will catch the tabletop 106. At this time, the permanent magnet 213 will drive the tabletop 106 to move (following the third roof tent bottom plate 103). When the tabletop 106 swings to a certain angle (due to the pulling force of the spring rod 108, when the end of the spring rod 108 close to the tabletop 106 swings to the upper oblique side, an angle will appear between the second support rod 109 and the spring rod 108. Driven by the spring rod 108 (the spring rod 108 is composed of a telescopic cylinder and a telescopic rod, and a spring is connected between one end of the inner wall of the telescopic cylinder and the telescopic rod), the second support rod 109 and the first support rod 107 will swing upward, thereby driving the tabletop 106 from the position as shown in Figure 8 to the Figure 1 position. It should be noted that in the folded state, the tabletop 106 is not horizontal, and there is an angle between the tabletop 106 and the second roof tent bottom plate 102. The side of the tabletop 106 close to the second hinge 105 is lower than the side close to the first hinge 104). During this movement process, the permanent magnet 213 is separated from the third roof tent bottom plate 103. At this time, it is not necessary for the third roof tent bottom plate 103 to drive the tabletop 106 to move.

[0032] When folding is required, control the drive motor 212 to reverse, wind the pull wire 203 on the wire reel 205, so as to make the pull wire 203 pull the tabletop 106 to move. At this time, the spring rod 108 is stretched, so that the tabletop 106 swings from the position as shown in Figure 1 to theFigure 8 At this position, the winding reel 205 cannot rotate, and the housing of the drive motor 212 will drive the third roof tent bottom plate 103 to swing above the table board 106 to achieve folding. Finally, manually fold the first roof tent bottom plate 101 over the third roof tent bottom plate 103 to make it as Figure 7 shown.

[0033] Specifically, to control the forward and reverse rotation of the drive motor 212, the user only needs to press different ceramic rods 307. As Figure 13 shown, pressing different ceramic rods 307 will reverse the polarity between the drive motor 212 and both ends of the power supply, thereby changing the rotation direction of the drive motor 212. To prevent the two ceramic rods 307 from being pressed simultaneously, a trapezoidal block 309 is provided. When one of the ceramic rods 307 is pressed, the trapezoidal block 309 is squeezed by the pressing plate 308, causing the trapezoidal block 309 to move below the other pressing plate 308. At this time, the other ceramic rod 307 cannot be pressed.

Claims

1. A folding table for a roof tent, comprising a first roof tent bottom plate (101), a second roof tent bottom plate (102), and a third roof tent bottom plate (103). Characterized in that: The first roof tent bottom plate (101) is movably connected to the second roof tent bottom plate (102) through a second hinge (105), the second roof tent bottom plate (102) is movably connected to the third roof tent bottom plate (103) through a first hinge (104), a second support rod (109) is movably installed in the middle of the second roof tent bottom plate (102), the other end of the second support rod (109) is movably connected to a tabletop (106), a first support rod (107) is movably connected to the tabletop (106), the other end of the first support rod (107) is movably connected to the second roof tent bottom plate (102), and a tension spring rod (108) is movably installed between the end of the second support rod (109) close to the tabletop (106) and the end of the first support rod (107) close to the second roof tent bottom plate (102); A first roller (201) is rotatably installed on the leaf of the second hinge (105) fixedly connected to the second roof tent bottom plate (102), and a lead frame (202) is also fixedly installed on this leaf. A second roller (204) and a wire reel (205) are rotatably installed on the leaf of the first hinge (104) fixedly connected to the second roof tent bottom plate (102). A flange seat (206) is fixedly installed on the leaf of the first hinge (104) fixedly connected to the third roof tent bottom plate (103), a mounting seat (207) is fixedly installed on the flange seat (206), a gear disc (208) is rotatably installed in the mounting seat (207), and the gear disc (208) is fixed to the wire reel (205) through a shaft; It further includes a control component, and the control component includes two insulating shells (301). Sliding holes (3011) are opened in both insulating shells (301), a ceramic rod (307) is slidably installed in the sliding holes (3011), a top connection conductive plate (304) and a bottom connection conductive plate (305) are fixedly installed on the ceramic rod (307), first electrode contacts (302) and second electrode contacts (303) are fixedly arranged on both insulating shells (301), extrusion plates (308) are fixedly installed on both ceramic rods (307), a sliding rod (311) is fixedly installed on the insulating shell (301), a trapezoidal block bracket (310) is slidably installed on the sliding rod (311), and a trapezoidal block (309) slidably matched with the two extrusion plates (308) is fixedly installed on the trapezoidal block bracket (310).

2. A folding table for a roof tent according to claim 1, Characterized in that: The telescopic cylinder of the tension spring rod (108) is movably connected to the second support rod (109), and the telescopic rod of the tension spring rod (108) is movably connected to the first support rod (107).

3. A folding table for a roof tent according to claim 2, Characterized in that: A planetary gear bracket (211) is fixedly installed on the mounting base (207), a driving motor (212) is fixedly installed on the planetary gear bracket (211), a central gear (210) is fixedly installed on the output shaft of the driving motor (212), and the central gear (210) is in gear transmission with the toothed disc (208) through a planetary gear (209).

4. A folding table for a roof tent according to claim 3, wherein: A stepped through hole is formed in the table board (106), a permanent magnet (213) is slidably installed in the through hole, and a limiting ring (2131) for limiting is arranged on the permanent magnet (213).

5. A folding table for a roof tent according to claim 4, wherein: The first electrode contact (302) and the second electrode contact (303) at the top are in contact fit with the top connecting conductive plate (304), and the first electrode contact (302) and the second electrode contact (303) at the bottom are in contact fit with the bottom connecting conductive plate (305).

6. A folding table for a roof tent according to claim 5, wherein: A spring (306) is fixedly arranged between the bottom connecting conductive plate (305) and the insulating shell (301), and the spring (306) is wound around a ceramic rod (307).

7. A folding table for a roof tent according to claim 6, wherein: It further includes a pull wire (203), one end of the pull wire (203) is fixed to the table board (106), the other end of the pull wire (203) is fixed to a wire reel (205), and the pull wire (203) is in transmission connection with a lead frame (202), a first roller (201), and a second roller (204).

8. A folding table for a roof tent according to claim 7, wherein: A return spring (312) is wound around the sliding rod (311), and both ends of the return spring (312) are fixed to the sliding rod (311) and a trapezoidal block bracket (310) respectively.

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