Folding door assembly of electric tricycle

Abstract

The folding door assembly of the electric tricycle comprises a door frame, a first folding door and a second folding door, frames are arranged on the outer sides of the first folding door and the second folding door, the left side of the first folding door is hinged to the second folding door, the left side of the second folding door is hinged to the door frame, and a containing part is arranged on the rear side of the door frame. A fixing assembly is arranged at the left end of the door frame, lock catches are fixed to the front ends of the door frame and the second folding door, a lock assembly clamped with the lock catches is arranged at the front end of the first folding door, and folding assemblies are arranged at the front ends of the first folding door and the second folding door. When the first folding door is folded, the fixing rod leaves the blocking handle on the first folding door, limitation between the first folding door and the second folding door is relieved, at the moment, the first folding door is folded at the front end of the second folding door, meanwhile, the lock assembly on the first folding door is connected to the lock catch on the second folding door in a clamped mode, and fixed connection between the first folding door and the second folding door is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tricycle doors, in particular to a folding door assembly of an electric tricycle. Background Art

[0002] Electric tricycles are three-wheeled transport vehicles that use batteries as power and motors as drive to pull goods or people. Electric tricycles use tubular large-capacity, left and right linings, deep discharge, and traction batteries, which can meet the requirements of long-term continuous discharge. The battery can be used normally for two years without reducing its capacity. The electric tricycle motor uses a DC series-excited traction brushed or brushless motor. The motor is equipped with a speed regulating and force-enhancing device, which is not easily damaged during normal use, ensuring strong output power. The tricycle can carry people and goods. With the rapid development of the logistics and express delivery industry, tricycles are widely used in regular life. Most of these tricycles are semi-enclosed. This semi-enclosed tricycle has an opening for entry and exit. The doors installed on the openings of existing tricycles are all integral and cannot be folded. The radius required to open the door is large, and the connection structure between the door and the vehicle is relatively complex. Utility Model Content

[0003] In view of the above problems, the utility model provides a folding door assembly for an electric tricycle, which solves the above problems.

[0004] To achieve the above-mentioned object, the utility model provides the following technical solutions: a folding door assembly of an electric tricycle, comprising a door frame, a first folding door and a second folding door, the first folding door and the second folding door are provided with a frame on the outside, the left side of the first folding door is hinged to the second folding door, the left side of the second folding door is hinged to the door frame, a storage portion is provided on the rear side of the door frame, two vertically symmetrical fixing assemblies are provided on the left end of the door frame, a lock buckle is fixed to the front end of the door frame and the second folding door, a lock assembly engaged with the lock buckle is provided on the front end of the first folding door, and a folding assembly is provided on the front end of the first folding door and the second folding door;

[0005] The lock assembly comprises two symmetrical clamping plates, the rear ends of the clamping plates are connected to a fixing seat, the rear ends of the fixing seats are slidably connected to a pressing plate, the opposite sides of the two clamping plates are provided with spring plates, the opposite sides of the two clamping plates are provided with baffles, the front ends of the baffles are provided with a receiving plate fixedly connected to the clamping plates, and the rear ends of the baffles are connected to the pressing plate;

[0006] The folding assembly includes three fixing rings fixed on the first folding door and the second folding door from left to right, a fixing rod is inserted between the fixing rings, and two symmetrical stop handles are fixed on the lower side of the fixing rod;

[0007] The fixing assembly includes two vertically symmetrical connecting seats and a pressure rod. The right end of the second folding door is provided with a fixing countersunk hole corresponding to the pressure rod. The connecting seat and the pressure rod are elastically connected.

[0008] Preferably, the clamping plate is arc-shaped, and both ends of the spring sheet are slidably connected to the clamping plate. Connecting rods are fixed to the opposite ends of the two spring sheets, and the connecting rods are slidably connected to the clamping plate.

[0009] Preferably, a spring sheet is provided inside the storage plate, and the baffle is slidably connected to the spring sheet.

[0010] Preferably, the pressure plate is slidably connected to the fixed seat, two symmetrical push buttons are fixed to the front end of the pressure plate, the lower ends of the push buttons are connected to the baffle, a U-shaped plate is provided at the rear end of the pressure plate, the U-shaped plate passes through the first folding door, a handle is fixed to the rear end of the first folding door, the U-shaped plate is slidably connected to the handle, and a release spring is connected between the U-shaped plate and the fixed seat.

[0011] Preferably, the two stop handles are located between the central fixing rod and the right fixing rod.

[0012] Preferably, a threaded rod is fixed on the side of the connecting seat facing the pressure rod, an adjusting nut is threadedly connected to the threaded rod, a compression spring is provided between the adjusting nut and the pressure rod, and a countersunk hole for accommodating the threaded rod is provided inside the pressure rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. Pull the fixing rod to make the fixing rod leave the stop handle on the first folding door, release the limit between the first folding door and the second folding door, then fold the first folding door at the front end of the second folding door, and at the same time, the lock assembly on the first folding door is connected to the lock buckle on the second folding door to achieve a fixed connection between the first folding door and the second folding door, then fold the second folding door to make it connected to the storage part of the door frame, and fix the second folding door by the cooperation of the fixing assembly and the fixing countersunk hole, thereby achieving the effect of folding and fixing the door.

[0015] 2. The fixing component cooperates with the lock to achieve the fixation between the first folding door and the door frame or the first folding door and the second folding door, thereby preventing the door from opening or loosening due to loose fixation. At the same time, the second folding door is fixed by the fixing component to ensure the firmness of the fixation of the second folding door. At the same time, the firmness of the fixation between the fixing component and the second folding door can be adjusted by twisting the adjusting nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 3 This is a schematic diagram of a second folding door of the utility model;

[0019] Figure 4 It is an overall schematic diagram of the lock assembly of the utility model;

[0020] Figure 5 It is a cross-sectional schematic diagram of the lock assembly of the utility model;

[0021] Figure 6 For the utility model Figure 1 A magnified schematic diagram;

[0022] Figure 7 For the utility model Figure 2 Enlarged schematic diagram at point B.

[0023] Explanations in the figure: 1. Door frame; 2. First folding door; 3. Second folding door; 4. Lock assembly; 5. Fixing assembly; 6. Folding assembly; 11. Storage part; 12. Lock buckle; 21. Handle; 31. Fixing countersunk hole; 41. Clamp; 42. Fixing seat; 43. Spring piece; 44. Connecting rod; 45. Baffle; 46. Storage plate; 47. Spring sheet; 48. Pressure plate; 49. Release spring; 51. Connecting seat; 52. Pressure rod; 53. Threaded rod; 54. Compression spring; 55. Adjusting nut; 61. Fixing ring; 62. Fixing rod; 63. Stop handle; 481. Press button; 482. U-shaped plate. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0025] See also Figure 1 , Figure 2 and Figure 3A folding door assembly for an electric tricycle comprises a door frame 1, a first folding door 2 and a second folding door 3, the outer sides of the first folding door 2 and the second folding door 3 are provided with a frame, the left side of the first folding door 2 is hinged to the second folding door 3, the left side of the second folding door 3 is hinged to the door frame 1, the first folding door 2 is hinged to the second folding door 3, and the second folding door 3 is hinged to the door frame 1, so that the first folding door 2 can be folded at the front end of the second folding door 3, and the rear end of the second folding door 3 can be folded into the storage portion 11 of the door frame 1, thereby realizing the folding of the door of the electric tricycle. At the same time, when the door is damaged, it is not necessary to disassemble the door as a whole, and only the damaged door needs to be disassembled for replacement. The rear side of the door frame 1 is provided with a storage portion 11, and the door frame The left end of the door frame 1 is provided with two vertically symmetrical fixing components 5, the storage portion 11 stores the second folding door 3 therein, the fixing component 5 squeezes and clamps the second folding door 3 to prevent the second folding door 3 from rotating, the front ends of the door frame 1 and the second folding door 3 are both fixed with a lock buckle 12, the front end of the first folding door 2 is provided with a lock component 4 clamped with the lock buckle 12, the front ends of the first folding door 2 and the second folding door 3 are provided with a folding component 6, the folding component 6 limits the connection between the first folding door 2 and the second folding door 3, when the car door is closed, the first folding door 2 and the second folding door 3 are prevented from rotating relative to each other, when the car door is opened, it is ensured that the first folding door 2 and the second folding door 3 rotate with each other, so as to facilitate the opening of the car door and reduce the radius of the door opening.

[0026] See also Figure 1 , Figure 4 and Figure 5The lock assembly 4 includes two symmetrical clamping plates 41, the clamping plates 41 are arc-shaped, and the arc-shaped part of the clamping plates 41 first contacts the lock buckle 12, which plays a guiding role for the lock buckle 12, so that the lock buckle 12 can be smoothly clamped between the two clamping plates 41, thereby completing the clamping of the lock buckle 12 to prevent the first folding door 2 from continuing to rotate. The rear end of the clamping plate 41 is connected to a fixed seat 42, and the rear end of the fixed seat 42 is slidably connected to a pressure plate 48. The opposite sides of the two clamping plates 41 are provided with spring pieces 43, and the opposite sides of the two clamping plates 41 are provided with baffles 45. The baffles 45 hinder the movement of the connecting rod 44 to prevent the connecting rod 44 from moving, thereby hindering the lock buckle 12 from moving from the two clamping plates. The baffle 45 comes out from between the splints 41, ensuring the firmness of the connection between the first folding door 2 and the door frame 1, the front end of the baffle 45 is provided with a storage plate 46 fixedly connected to the splint 41, the rear end of the baffle 45 is connected to the pressure plate 48, the two ends of the spring sheet 43 are slidably connected to the splint 41, and the opposite ends of the two spring sheets 43 are fixed with a connecting rod 44, and the connecting rod 44 is slidably connected to the splint 41. By pressing the U-shaped plate 482, the pressing button 481 presses the baffle 45 down, and the baffle 45 enters the interior of the storage plate 46 to squeeze the spring sheet 47. The empty position of the pressing button 481 corresponds to the connecting rod 44. At this time, the limit on the connecting rod 44 is released, so that the lock buckle 12 can be smoothly detached from between the splints 41.

[0027] See also Figure 1 , Figure 4 and Figure 5 The U-shaped plate 482 is slidably connected to the handle 21 by releasing the spring 49 to move against the U-shaped plate 482, so that the U-shaped plate 482 can be quickly restored, thereby realizing the effect of quickly leaving the baffle 45 and preventing the baffle 45 from rising too slowly and failing to hinder the connecting rod 44.

[0028] See also Figure 1 , Figure 2 and Figure 6The folding assembly 6 includes three fixing rings 61 fixed on the first folding door 2 and the second folding door 3 from left to right, a fixing rod 62 is inserted between the fixing rings 61, and two symmetrical stop handles 63 are fixed on the lower side of the fixing rod 62, and the two stop handles 63 are located between the central fixing rod 62 and the fixing rod 62 on the right side. By pulling the fixing rod 62, the fixing rod 62 is separated from the stop handle 63 on the first folding door 2, and the limit between the first folding door 2 and the second folding door 3 is released. At this time, the first folding door 2 is folded at the front end of the second folding door 3, and the lock assembly 4 on the first folding door 2 is clamped on the lock buckle 12 on the second folding door 3 to achieve a fixed connection between the first folding door 2 and the second folding door 3. Then, the second folding door 3 is folded so that the second folding door 3 is clamped in the storage portion 11 of the door frame 1, and the second folding door 3 is fixed by the cooperation of the fixing assembly 5 and the fixing countersunk hole 31, thereby achieving the effect of folding and fixing the car door.

[0029] See also Figure 1 , Figure 2 and Figure 7 The fixing assembly 5 includes two upper and lower symmetrical connecting seats 51 and a pressure rod 52. The right end of the second folding door 3 is provided with a fixing countersunk hole 31 corresponding to the pressure rod 52. The connecting seat 51 is elastically connected to the pressure rod 52. A threaded rod 53 is fixed to the connecting seat 51 on the side facing the pressure rod 52. An adjusting nut 55 is threadedly connected to the threaded rod 53. By twisting the adjusting nut 55, the adjusting nut 55 squeezes the compression spring 54, and the compression spring 54 applies greater pressure to the pressure rod 52, so that when the second folding door 3 is clamped, the clamping and fixing are more firmly. A compression spring 54 is provided between the adjusting nut 55 and the pressure rod 52, and a countersunk hole for accommodating the threaded rod 53 is provided inside the pressure rod 52. The fixing component 5 cooperates with the lock buckle 12 to realize the fixation between the first folding door 2 and the door frame 1 or the first folding door 2 and the second folding door 3, thereby preventing the door from opening or loosening due to loose fixation. At the same time, the second folding door 3 is fixed by the fixing component 5 to ensure the firmness of the fixation of the second folding door 3. At the same time, the firmness of the fixation between the fixing component 5 and the second folding door 3 is adjusted by twisting the adjusting nut 55.

[0030] When the utility model is used:

[0031] First, the handle 21 is held and the U-shaped plate 482 is pressed. The release spring 49 is compressed and the pressing plate 48 drives the pressing button 481 to move. The pressing button 481 pushes against the baffle 45 and enters the interior of the storage plate 46 to compress the spring sheet 47.

[0032] Then, the first folding door 2 is pulled by hand, and the second folding door 3 and the first folding door 2 are rotated as a whole, so that the lock assembly 4 is disengaged from the lock catch 12 on the door frame 1;

[0033] Then, the other hand moves the fixing rod 62 through the stop handle 63 to disengage it from the stop handle 63 on the first folding door 2, thereby releasing the limit between the first folding door 2 and the second folding door 3. Since the stop handle 63 itself will droop downward due to its own gravity, the stop handle 63 will not move due to the influence of the frame of the second folding door 3, and the first folding door 2 is rotated to make the first folding door 2 fit with the second folding door 3. During the fitting process, the lock buckle 12 on the second folding door 3 will first deform the spring sheet 43 when passing through the spring sheet 43, thereby driving the connecting rod 44 to move. After the lock buckle 12 passes, the spring sheet 43 drives the connecting rod 44 to recover, loosens the U-shaped plate 482, and the spring sheet 47 presses against the stop plate 45 to recover, thereby preventing the connecting rod 44 from moving. The release spring 49 presses against the U-shaped plate 482 to recover, thereby completing the fixing of the first folding door 2 and the second folding door 3.

[0034] Finally, the second folding door 3 is rotated so that the second folding door 3 is clamped in the storage portion 11 of the door frame 1, and the fixed countersunk hole 31 of the second folding door 3 is clamped and fixed with the fixing component 5. During the clamping process, the frame of the second folding door 3 will first move against the pressure rod 52 to squeeze the compression spring 54. When the pressure rod 52 corresponds to the fixed countersunk hole 31, the compression spring 54 pushes the pressure rod 52 and extends into the fixed countersunk hole 31 to achieve the transition of the second folding door 3. By twisting the adjusting nut 55, the compression spring 54 is compressed, thereby achieving the degree of squeezing of the fixed countersunk hole 31 by the pressure rod 52 and adjusting the firmness of the fixation between the second folding door 3 and the door frame 1.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A folding door assembly for an electric tricycle, characterized in that: The invention comprises a door frame (1), a first folding door (2) and a second folding door (3), wherein the outer sides of the first folding door (2) and the second folding door (3) are provided with frames, the left side of the first folding door (2) is hinged to the second folding door (3), the left side of the second folding door (3) is hinged to the door frame (1), a storage portion (11) is provided on the rear side of the door frame (1), two upper and lower symmetrical fixing components (5) are provided on the left end of the door frame (1), a lock buckle (12) is fixed to the front end of the door frame (1) and the second folding door (3), a lock component (4) engaged with the lock buckle (12) is provided at the front end of the first folding door (2), and a folding component (6) is provided at the front end of the first folding door (2) and the second folding door (3); The lock assembly (4) comprises two left-right symmetrical clamping plates (41), the rear end of the clamping plates (41) is connected to a fixing seat (42), the rear end of the fixing seat (42) is slidably connected to a pressing plate (48), the opposite sides of the two clamping plates (41) are provided with spring pieces (43), the opposite sides of the two clamping plates (41) are provided with baffles (45), the front ends of the baffles (45) are provided with storage plates (46) fixedly connected to the clamping plates (41), and the rear ends of the baffles (45) are connected to the pressing plate (48); The folding assembly (6) comprises three fixing rings (61) fixed on the first folding door (2) and the second folding door (3) in sequence from left to right, a fixing rod (62) is inserted between the fixing rings (61), and two symmetrical stop handles (63) are fixed on the lower side of the fixing rod (62); The fixing assembly (5) comprises two vertically symmetrical connecting seats (51) and a pressure rod (52); a fixing countersunk hole (31) corresponding to the pressure rod (52) is provided at the right end of the second folding door (3); and the connecting seat (51) and the pressure rod (52) are elastically connected.

2. The folding door assembly of an electric tricycle according to claim 1, characterized in that: The clamping plate (41) is arc-shaped, and both ends of the spring sheet (43) are slidably connected to the clamping plate (41). The opposite ends of the two spring sheets (43) are fixed with connecting rods (44), and the connecting rods (44) are slidably connected to the clamping plate (41).

3. The folding door assembly of an electric tricycle according to claim 1, characterized in that: A spring sheet (47) is provided inside the receiving plate (46), and the baffle (45) is slidably connected to the spring sheet (47).

4. The folding door assembly of an electric tricycle according to claim 1, characterized in that: The pressure plate (48) is slidably connected to the fixed seat (42); two symmetrical pressing buttons (481) are fixed at the front end of the pressure plate (48); the lower ends of the pressing buttons (481) are connected to the baffle (45); a U-shaped plate (482) is provided at the rear end of the pressure plate (48); the U-shaped plate (482) passes through the first folding door (2); a handle (21) is fixed at the rear end of the first folding door (2); the U-shaped plate (482) is slidably connected to the handle (21); and a release spring (49) is connected between the U-shaped plate (482) and the fixed seat (42).

5. The folding door assembly of an electric tricycle according to claim 1, characterized in that: The two stop handles (63) are located between the central fixing rod (62) and the right fixing rod (62).

6. The folding door assembly of an electric tricycle according to claim 1, characterized in that: A threaded rod (53) is fixed on one side of the connection seat (51) facing the pressure rod (52); an adjusting nut (55) is threadedly connected to the threaded rod (53); a compression spring (54) is provided between the adjusting nut (55) and the pressure rod (52); and a countersunk hole for receiving the threaded rod (53) is provided inside the pressure rod (52).

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