Rear box folding seat of electric tricycle

Abstract

The utility model discloses an electro-tricycle trunk folding seat, which relates to the technical field of electro-tricycles and comprises a support frame, a connecting shaft is fixedly connected onto the support frame, connecting arms are rotatably connected onto the connecting shaft, and a turnover seat mechanism is arranged between the two connecting arms. A locking mechanism is arranged between one connecting arm and the turnover seat mechanism, and the turnover seat mechanism comprises a turnover storage seat. According to the rear box folding seat of the electric tricycle, the turnover storage seat is rotated to drive a second bevel gear in the turnover storage seat to do circular motion around a first bevel gear, the second bevel gear is matched with the first bevel gear to rotate in the circular motion process, and the second bevel gear rotates to drive a movable seat to move along a guide rod; the movable seat moves towards the interior of the overturning storage seat, and after the overturning storage seat is overturned downwards, the seat cushion is completely stored in the overturning storage seat, so that the seat cushion is prevented from being contaminated, and the protection effect on the seat cushion is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tricycles, in particular to a folding seat for the rear box of an electric tricycle. Background Technique

[0002] An electric tricycle is a three-wheel transport vehicle powered by a battery and driven by a motor for hauling goods or people. The seat on its rear box can be folded, so that it is convenient to take out or put in items from the rear box. In the prior art, when no one is sitting on the folding seat of the rear box, its surface is prone to be stained with dirt, and when someone sits on it, its surface needs to be wiped, and the protection effect on the seat is not ideal enough.

[0003] For example, the patent publication number CN203345094U is specifically a folding seat for the rear box of an electric tricycle, including a folding seat, a carriage backrest, a seat bracket, a return spring, and a mounting shaft. The characteristics are as follows: seat brackets are provided at both ends of the folding seat, the seat brackets are provided with mounting shafts, the mounting shafts are fixed on the carriage backrest, and the return spring is sleeved on the mounting shaft. The folding seat is caused to retract and lean against the carriage backrest through the return spring. The advantages and effects of this utility model are: this folding seat for the rear box of an electric tricycle has a simple structure and is easy to use. The seat can be folded and retracted against the carriage backrest to transport goods. It expands the use function of the electric tricycle. There is a problem that when no one is sitting on this folding seat of the rear box, its surface is prone to be stained with dirt, and when someone sits on it, its surface needs to be wiped, and the protection effect on the seat is not ideal enough. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a folding seat for the rear box of an electric tricycle, which solves the problem that when no one is sitting on the folding seat of the rear box, its surface is prone to be stained with dirt, and when someone sits on it, its surface needs to be wiped, and the protection effect on the seat is not ideal enough.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: a folding seat for the rear box of an electric tricycle, including a support frame, a connecting shaft is fixedly connected to the support frame, a connecting arm is rotatably connected to the connecting shaft, a turning seat mechanism is provided between the two connecting arms, and a locking mechanism is provided between one connecting arm and the turning seat mechanism;

[0006] The flipping seat mechanism includes a flipping storage seat. One side of the flipping storage seat is rotatably connected to a fixed shaft. Both ends of the fixed shaft are fixedly connected to connecting arms. Two first bevel gears are fixedly connected to the fixed shaft. A second bevel gear is provided on each side of each first bevel gear. A jacking screw is fixedly connected to the end of each second bevel gear. A moving seat is threadedly connected to the two jacking screws on the same side. A jacking seat is fixedly connected to the top of the moving seat. A first inclined surface is provided on the jacking seat. A plurality of guide rods are fixedly connected inside the flipping storage seat. A movable seat is slidably connected to the plurality of guide rods. A return spring is provided on the top of the movable seat. A seat cushion is fixedly connected to the movable seat. Guide blocks are fixedly connected to both sides of the bottom surface of the movable seat. A second inclined surface is provided on the guide block.

[0007] Preferably, the flipping storage seat is arranged between the two connecting arms, and the flipping storage seat is rotatably connected to the two connecting arms through the fixed shaft.

[0008] Preferably, the first bevel gear meshes with the second bevel gears on both sides, and the fixed shaft is in transmission connection with the jacking screw through the first bevel gear and the second bevel gear.

[0009] Preferably, the two jacking seats are respectively arranged at the bottoms of the two guide blocks, and the first inclined surface of the jacking seat fits with the second inclined surface of the guide block.

[0010] Preferably, the guide rod and the return spring are arranged in a penetrating manner, and both ends of the return spring are fixedly connected to the movable seat and the inner wall of the flipping storage seat respectively.

[0011] Preferably, an opening is provided at the top of the flipping storage seat. The opening matches the seat cushion, and the seat cushion is detachably connected to the movable seat.

[0012] Preferably, the locking mechanism includes a locking nut. The locking nut is fixedly installed on one connecting arm, and a locking jack is provided at one end of the flipping storage seat.

[0013] Preferably, a locking screw is threadedly connected inside the locking nut. The locking screw matches the locking jack, and a protruding block is fixedly connected to the end of the locking screw.

[0014] Beneficial effects

[0015] The utility model provides a folding seat for the rear box of an electric tricycle. Compared with the prior art, the following beneficial effects are achieved:

[0016] 1. For the folding seat in the rear box of this electric tricycle, by rotating the flipping and storing seat, the second bevel gear inside it rotates around the first bevel gear in a circular motion. During the circular motion, the second bevel gear rotates on its own in cooperation with the first bevel gear. The self-rotation of the second bevel gear drives the movable seat to move along the guide rod, causing the movable seat to move into the flipping and storing seat. After the flipping and storing seat flips downward, the cushion is completely received inside the flipping and storing seat, preventing the cushion from being stained and improving the protection effect on the cushion.

[0017] 2. For the folding seat in the rear box of this electric tricycle, by rotating the protruding block, the rotation of the protruding block drives the locking screw to rotate. Under the action of the locking nut, the locking screw is inserted into the locking jack, thereby being able to lock the flipping and storing seat and improving the stability during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structural schematic diagram of the present utility model;

[0019] Figure 2 is the structural schematic diagram of the flipping seat mechanism of the present utility model;

[0020] Figure 3 is the connection structural schematic diagram between the flipping and storing seat and the movable seat of the present utility model;

[0021] Figure 4 is the structural schematic diagram of the locking mechanism of the present utility model.

[0022] In the figure: 1. Support frame; 2. Flipping seat mechanism; 201. Flipping and storing seat; 202. Fixed shaft; 203. First bevel gear; 204. Second bevel gear; 205. Jacking screw; 206. Moving seat; 207. Jacking seat; 208. Movable seat; 209. Return spring; 210. Cushion; 211. Guide block; 212. Second inclined surface; 213. First inclined surface; 214. Guide rod; 3. Connecting arm; 4. Connecting shaft; 5. Locking mechanism; 501. Locking nut; 502. Locking screw; 503. Protruding block; 504. Locking jack. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-3, the present utility model provides a technical solution: an electric tricycle rear box folding seat, including a support frame 1, a connecting shaft 4 is fixedly connected to the support frame 1, a connecting arm 3 is rotatably connected to the connecting shaft 4, a flipping seat mechanism 2 is provided between the two connecting arms 3, and a locking mechanism 5 is provided between one connecting arm 3 and the flipping seat mechanism 2. The connecting arm 3 can be rotated through the connecting shaft 4, so that folding can be carried out. And by using the flipping seat mechanism 2, it can be flipped downward when idle, and at the same time, the seat cushion 210 is retracted to prevent the seat cushion 210 from being stained, improving the protection effect on the seat cushion 210.

[0025] The flipping seat mechanism 2 includes a flipping storage seat 201. One side of the flipping storage seat 201 is rotatably connected to a fixed shaft 202. Both ends of the fixed shaft 202 are fixedly connected to the connecting arms 3. The flipping storage seat 201 is arranged between the two connecting arms 3, and the flipping storage seat 201 is rotatably connected to the two connecting arms 3 through the fixed shaft 202, enabling relative rotation between the fixed shaft 202 and the flipping storage seat 201. Two first bevel gears 203 are fixedly connected to the fixed shaft 202. A second bevel gear 204 is provided on both sides of each first bevel gear 203. The first bevel gear 203 meshes with the second bevel gears 204 on both sides. The fixed shaft 202 is in transmission connection with the jacking screw 205 through the first bevel gear 203 and the second bevel gear 204, such that when the second bevel gear 204 makes a circular motion around the first bevel gear 203, it can rotate itself. A jacking screw 205 is fixedly connected to the end of each second bevel gear 204. A moving seat 206 is threadedly connected to the two jacking screws 205 on the same side. The top of the moving seat 206 is fixedly connected to a jacking seat 207. A first inclined surface 213 is provided on the jacking seat 207. A plurality of guide rods 214 are fixedly connected inside the flipping storage seat 201. A movable seat 208 is slidably connected to the plurality of guide rods 214. A return spring 209 is provided on the top of the movable seat 208. The guide rod 214 and the return spring 209 are arranged in a penetrating manner, and both ends of the return spring 209 are fixedly connected to the movable seat 208 and the inner wall of the flipping storage seat 201 respectively, capable of resetting the movable seat 208. A cushion 210 is fixedly connected to the movable seat 208. An opening is provided at the top of the flipping storage seat 201. The opening matches the cushion 210, and the cushion 210 is detachably connected to the movable seat 208, enabling the cushion 210 to be received into and extended out of the flipping storage seat 201. Guide blocks 211 are fixedly connected to both sides of the bottom surface of the movable seat 208. A second inclined surface 212 is provided on the guide blocks 211. Two jacking seats 207 are respectively arranged at the bottoms of the two guide blocks 211, and the first inclined surface 213 of the jacking seat 207 fits with the second inclined surface 212 of the guide block 211, enabling the jacking seat 207 to push the guide block 211 to move through the first inclined surface 213 and the second inclined surface 212. By rotating the flipping storage seat 201, the flipping storage seat 201 can rotate around the fixed shaft 202. The rotation of the flipping storage seat 201 drives the second bevel gear 204 inside it to make a circular motion around the first bevel gear 203. During the circular motion, the second bevel gear 204 rotates in cooperation with the first bevel gear 203. The rotation of the second bevel gear 204 drives the jacking screw 205 to rotate. The rotation of the jacking screw 205 drives the moving seat 206 to move. The movement of the moving seat 206 drives the jacking seat 207 to move. The movement of the jacking seat 207 cooperates with the return spring 209 to drive the movable seat 208 to move along the guide rod 214, causing the movable seat 208 to move towards the inside of the flipping storage seat 201. When the flipping storage seat 201 flips downwards, the cushion 210 is completely received into the flipping storage seat 201.Prevent the seat cushion 210 from being stained and improve the protection effect on the seat cushion 210.

[0026] Please refer to Figure 2 and Figure 4 The locking mechanism 5 includes a locking nut 501. The locking nut 501 is fixedly installed on a connecting arm 3. A locking jack 504 is provided at one end of the flipping and retractable seat 201. A locking screw 502 is threadedly connected inside the locking nut 501. The locking screw 502 is matched with the locking jack 504. A protruding block 503 is fixedly connected to the end of the locking screw 502. By rotating the protruding block 503, the rotation of the protruding block 503 drives the rotation of the locking screw 502. Under the action of the locking nut 501, the locking screw 502 is inserted into the locking jack 504, so as to lock the flipping and retractable seat 201 and improve the stability of use.

[0027] During operation, rotate the flipping and retractable seat 201 so that the flipping and retractable seat 201 rotates around the fixed shaft 202. The rotation of the flipping and retractable seat 201 drives the second bevel gear 204 inside it to move in a circular motion around the first bevel gear 203. During the circular motion, the second bevel gear 204 rotates in cooperation with the first bevel gear 203. The rotation of the second bevel gear 204 drives the jacking screw 205 to rotate. The rotation of the jacking screw 205 drives the moving seat 206 to move. The movement of the moving seat 206 drives the jacking seat 207 to move. The movement of the jacking seat 207 cooperates with the return spring 209 to drive the movable seat 208 to move along the guide rod 214, so that the movable seat 208 moves into the flipping and retractable seat 201. After the flipping and retractable seat 201 flips downward, the seat cushion 210 is completely received into the flipping and retractable seat 201, preventing the seat cushion 210 from being stained and improving the protection effect on the seat cushion 210.

[0028] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

Claims

1. A folding seat for the rear box of an electric tricycle, comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected to a connecting shaft (4), the connecting shaft (4) is rotatably connected to a connecting arm (3), a turning seat mechanism (2) is provided between two connecting arms (3), and a locking mechanism (5) is provided between one connecting arm (3) and the turning seat mechanism (2); The flip seat mechanism (2) comprises a flip storage seat (201), one side of the flip storage seat (201) is rotatably connected to a fixed shaft (202), both ends of the fixed shaft (202) are fixedly connected to the connecting arm (3), two first bevel gears (203) are fixedly connected to the fixed shaft (202), both sides of each first bevel gear (203) are provided with a second bevel gear (204), each end of the second bevel gear (204) is fixedly connected to a jacking screw (205), and the two jacking screws (205) on the same side are threadedly connected to a moving seat (206), and the moving seat (206) A lifting seat (207) is fixedly connected to the top, and a first inclined surface (213) is provided on the lifting seat (207); a plurality of guide rods (214) are fixedly connected inside the flip storage seat (201); a movable seat (208) is slidably connected to the plurality of guide rods (214); a return spring (209) is provided on the top of the movable seat (208); a cushion (210) is fixedly connected to the movable seat (208); guide blocks (211) are fixedly connected to both sides of the bottom surface of the movable seat (208), and a second inclined surface (212) is provided on the guide blocks (211).

2. The folding seat in the rear box of an electric tricycle according to claim 1, characterized in that: The flip storage seat (201) is arranged between the two connecting arms (3), and the flip storage seat (201) is rotationally connected to the two connecting arms (3) via a fixed shaft (202).

3. The folding seat in the rear box of an electric tricycle according to claim 1, characterized in that: The first bevel gear (203) is meshed with the second bevel gears (204) on both sides, and the fixed shaft (202) is transmission-connected to the jacking screw rod (205) via the first bevel gear (203) and the second bevel gear (204).

4. The folding seat in the rear box of an electric tricycle according to claim 1, characterized in that: The two lifting seats (207) are respectively arranged at the bottom of the two guide blocks (211), and the first inclined surface (213) of the lifting seat (207) is in contact with the second inclined surface (212) of the guide block (211).

5. The folding seat in the rear box of an electric tricycle according to claim 1, characterized in that: The guide rod (214) and the return spring (209) are intersected, and two ends of the return spring (209) are respectively fixedly connected to the movable seat (208) and the inner wall of the flip storage seat (201).

6. The folding seat in the rear box of an electric tricycle according to claim 1, characterized in that: The top of the flip storage seat (201) is provided with an opening, the opening matches the seat cushion (210), and the seat cushion (210) is detachably connected to the movable seat (208).

7. The folding seat in the rear box of an electric tricycle according to claim 1, characterized in that: The locking mechanism (5) comprises a locking nut (501), the locking nut (501) is fixedly mounted on a connecting arm (3), and a locking socket (504) is provided at one end of the flip storage seat (201).

8. The folding seat in the rear box of an electric tricycle according to claim 7, characterized in that: The locking nut (501) is internally threadedly connected with a locking screw (502), the locking screw (502) matches the locking socket (504), and a protruding block (503) is fixedly connected to the end of the locking screw (502).

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