A rescue electric vehicle

Abstract

The present invention discloses a rescue electric vehicle, including an electric tricycle, wherein the front end of the electric tricycle is a group of front wheels, the rear end of the electric tricycle is two groups of rear wheels, a seat is provided between the front wheels and the rear wheels, and the rear wheels are installed on the frame of the electric tricycle, and the characteristics are: a trailer mechanism is also provided on the frame above the rear wheels, and the trailer mechanism includes a bucket and two groups of wheels, the two groups of wheels are rotationally connected via a connecting rod, the two groups of wheels are rotationally connected to the two ends of the connecting rod respectively, and the middle part of the connecting rod is connected to the middle part of the front side of the bucket; the bottom surface of the bucket abuts against the top surface of the frame, and the rear end of the bucket is rotationally connected to the rear end of the frame via a connecting mechanism; the bucket is a hollow structure with an opening at the top, and a cavity is provided at the top of the bucket. The present invention improves the convenience of electric vehicle rescue.

Description

Technical Field

[0001] The invention relates to an electric vehicle, in particular to a rescue electric vehicle. Background Art

[0002] Electric bicycles have become the most common means of transportation nowadays, mainly using batteries as a power source, and the front and rear wheels as a supporting mobile mechanism. Two-wheeled electric bicycles are the most commonly used electric bicycles. Among them, during actual use, two-wheeled electric bicycles often have problems due to battery failure, tire leakage, etc., and require nearby maintenance personnel to carry out maintenance. For maintenance or charging, the electric vehicle needs to be pushed to the nearest maintenance point or charging point. The distance of 100-200 meters is relatively short, and it may take more than 10 minutes to reach the maintenance point or charging point. If it exceeds 1KM, it is very inconvenient. If a rescue vehicle is used for rescue, the cost is particularly high. If a small truck is used, people need to move the electric vehicle to the truck bed, which is particularly inconvenient and requires relatively high costs. Therefore, how to solve the above technical problems is the direction that technical personnel in this field need to work hard on. Summary of the invention

[0003] The purpose of the present invention is to provide a rescue electric vehicle. By using the structure, the rescue of the two-wheeled electric vehicle is facilitated, the convenience of the rescue is improved, the labor intensity of maintenance personnel is reduced, and the cost is reduced.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a rescue electric vehicle, including an electric tricycle, the front end of the electric tricycle is a group of front wheels, the rear end of the electric tricycle is two groups of rear wheels, a seat is provided between the front wheels and the rear wheels, the rear wheels are installed on the frame of the electric tricycle, and a trailer mechanism is also provided on the frame above the rear wheels, the trailer mechanism includes a bucket and two groups of wheels, the two groups of wheels are connected by a connecting rod, the two groups of wheels are respectively rotatably connected to the two ends of the connecting rod, the middle part of the connecting rod is connected to the middle part of the front side of the bucket, the top outer edge surface and the bottom outer edge surface of the wheel are arranged above the top surface of the bucket and below the bottom surface, and the two groups of wheels are respectively arranged on the left side outside and the right side outside of the bucket and the frame;

[0005] The bottom surface of the bucket abuts against the top surface of the frame, and the rear end of the bucket is rotatably connected to the rear end of the frame via a connecting mechanism;

[0006] The truck bucket is a hollow structure with an opening at the top, and a cavity is provided at the top of the truck bucket;

[0007] When the bucket rotates counterclockwise through the connecting mechanism, the bottom surface of the bucket abuts against the top surface of the frame, and the wheels are arranged close to the seat;

[0008] When the bucket is rotated clockwise via the connecting mechanism, the bucket is arranged outside the rear end of the frame, the bottom surface of the bucket is arranged upward, the top surface of the bucket is arranged downward, and the outer edge surfaces of the two groups of wheels are against the ground, and the bucket is rotatably connected via the connecting mechanism.

[0009] In the above technical scheme, an auxiliary seat is detachably placed in the cavity, and four groups of support rods are provided at the bottom of the auxiliary seat, and a clearance hole is provided at the bottom of each group of the support rods, and the bottom surfaces of the four groups of the support rods are against the bottom surface of the cavity; first limiting rods are provided on the left and right sides of the bottom surface of the cavity, and a latch is provided on the left and right sides of the top surface of the truck bucket, respectively, and each group of the latches is arranged on the outer side corresponding to the top of the first limiting rods, and a limiting hole is provided at the front end of the left and right sides of the auxiliary seat, respectively. When the bottom surface of the truck bucket is against the frame, the auxiliary seat is placed in the cavity, and the clearance holes at the bottom of the two groups of the support rods are sleeved on the first limiting rod, and the latches on both sides are respectively inserted into the corresponding group of limiting holes, and the first limiting rod and the latch lock the auxiliary seat in the cavity of the truck bucket.

[0010] In the above technical solution, a second limit rod is respectively provided on the left and right sides of the front end of the frame, and the second limit rod is arranged close to the seat; when the truck bed is arranged at the rear side of the frame, the auxiliary seat is placed on the frame, and the auxiliary seat is sleeved on the first limit rod through the make way holes of the two groups of support rods.

[0011] In the above technical solution, a through groove is provided at the lower front side of the truck bucket, the through groove is communicated with the cavity, and the bottom of the through groove is flush with the bottom of the cavity; a guide plate is also provided, and when not in use, one end of the guide plate passes through the through groove and is arranged in the cavity, and a first limiting ring is provided in the middle part of the front end of the guide plate, and the first limiting ring is arranged on the outside of the front side of the truck bucket, a chain is provided in the middle part of the connecting rod, and a limiting pin is provided at the end of the chain, and the limiting pin is detachably inserted in the first limiting ring.

[0012] In the above technical solution, second limiting rings are respectively provided on both sides of the bottom of the front end surface of the truck bucket, the bottom surface of the second limiting ring is flush with the bottom surface of the truck bucket, two groups of the second limiting rings are arranged below the through groove, and two groups of downwardly bent hooks are provided at the front end of the guide plate; in use state, the truck bucket is arranged at the rear side of the frame, the guide plate is pulled out from the through groove and the cavity, the hooks on both sides of the front end of the guide plate are respectively clamped in a group of the second limiting rings, and the rear end of the guide plate is against the ground.

[0013] In the above technical solution, two groups of reinforcing ribs are provided on the bottom surface of the guide plate. When the guide plate is inserted into the cavity, the reinforcing ribs are arranged toward the top of the cavity, and the hooks are also arranged toward the top of the cavity.

[0014] In the above technical solution, the frame is a hollow structure, and two groups of L-shaped plates are arranged opposite to each other in the middle of the frame. The L-shaped plates are arranged perpendicular to the front end face and the rear end face of the frame, and a strip-shaped through groove is formed between the two groups of L-shaped plates; a tire limiting frame is slidably arranged in the strip-shaped through groove, and a limiting through groove is arranged in the middle of the tire limiting frame, and the two sides of the tire limiting frame are slidably arranged on the two groups of L-shaped plates via a slider.

[0015] In the above technical solution, the L-shaped plate includes a supporting plate and a vertical plate which are perpendicular to each other. The bottom of the vertical plate is vertically installed on the outer side of the top surface of the supporting plate. The two groups of the supporting plates are arranged opposite to each other. The slider is slidably arranged on the vertical plate. The two sides of the bottom of the tire limit frame are against the top surfaces of the two groups of the support plates, and the limiting groove is arranged between the two groups of the support plates.

[0016] In the above technical solution, a limiting bolt is screwed on the outer side of each group of the sliders, the inner end of the limiting bolt abuts against the outer side of the vertical plate, and the limiting bolt locks the slider and the tire limiting frame on the L-shaped plate.

[0017] In the above technical solution, the connecting mechanism includes a second bearing, the outer edge surface of the second bearing is welded to the rear end surface of the bucket, two groups of first bearings are provided at the rear end of the frame, a cross bar is rotatably mounted on the two groups of the first bearings, a vertical rod is vertically mounted on the middle of the top surface of the cross bar, the axis of the second bearing is arranged perpendicularly to the axis of the first bearing, the second bearing is rotatably sleeved on the vertical rod, a first limiting nut is provided on the top of the vertical rod, and the first limiting nut is arranged above the second bearing;

[0018] The second bearing rotates around the vertical rod, and the cross rod and the vertical rod rotate around the first bearing.

[0019] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0020] 1. In the present invention, a bucket and two sets of wheels are arranged on the frame of the electric tricycle. When the rescue mode is not used, the bucket will be against the frame and used as a normal three-wheeled electric vehicle. When rescue is needed, the bucket is flipped to the rear end of the frame, and the bottom of the rear end of the bucket is against the ground through the two sets of wheels for mobile support. The bucket and the frame are connected through a connecting mechanism, so that the two-wheeled electric vehicle can be directly supported on the bucket and the frame, the frame supports and limits the front wheels of the two-wheeled electric vehicle, and the bucket supports the rear wheels of the electric vehicle, which is convenient for the rescue of the two-wheeled electric vehicle, improves the convenience of rescue, and reduces costs;

[0021] 2. In the present invention, a detachable auxiliary seat is placed in the bucket, so that people can be carried on the auxiliary seat. When the electric tricycle is used to rescue the two-wheeled electric vehicle, after the bucket is flipped to the rear end of the frame, the bucket and the frame support and limit the electric vehicle, and the auxiliary seat is directly placed on the frame. In this way, when rescuing the two-wheeled electric vehicle, the owner of the electric vehicle can also sit on the auxiliary seat and be carried to the maintenance point together with the electric tricycle, without having to take a taxi or walk to the maintenance point alone, thereby improving the convenience of users;

[0022] 3. In the present invention, a guide plate is provided, which is inserted into the bucket when not in use, and is clamped into the second limit ring of the bucket through a hook when in use, and the rear end of the guide plate is against the ground, so that the guide plate is tilted. In this way, when rescuing, the two-wheeled electric vehicle can be directly pushed onto the bucket and the frame through the guide plate, without the need to manually move the two-wheeled electric vehicle onto the bucket and the frame, which is more convenient and labor-saving;

[0023] 4. The present invention sets a tire limiting frame on the frame, so that the tire limiting frame can limit the front wheel of the two-wheeled electric vehicle, prevent the two-wheeled electric vehicle from moving and shaking on the bucket and the frame, ensure that when the electric tricycle moves, the two-wheeled electric vehicle above will not fall from the bucket and the frame, and ensure the stability and quality of the placement of the two-wheeled electric vehicle;

[0024] 5. In the present invention, a cross bar is arranged to be rotatably connected with two groups of first bearings on the frame, a second bearing is arranged on the rear end surface of the bucket, a vertical rod is arranged on the cross bar, and the second bearing is rotatably connected with the vertical rod. In this way, when the bucket is flipped onto the frame or flipped down from the frame, the flipping of the bucket is facilitated by the connection of the cross bar. Through the arrangement of the second bearing and the vertical rod, when the bucket is flipped to the rear side of the frame and the supporting wheel is against the ground, that is, when a two-wheeled electric vehicle is placed on the bucket and the frame for rescue, when the electric tricycle is turning, the bucket can also rotate relative to the frame through the vertical rod and the second bearing, so as to ensure that the bucket can turn smoothly when the electric tricycle turns, reduce the turning angle of the electric tricycle, reduce the probability of the electric tricycle rolling over, and be safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure in the first embodiment of the present invention (when the bucket is against the top surface of the frame);

[0026] Figure 2 1 is a schematic diagram of the structure in the use state of the first embodiment of the present invention (the bucket is arranged at the rear side of the frame and loaded with a two-wheeled electric vehicle);

[0027] Figure 3 It is a schematic diagram of the structure of the guide plate in the first embodiment of the present invention when it is in use (the bucket is arranged at the rear side of the frame);

[0028] Figure 4 It is a structural schematic diagram of the guide plate inserted into the cavity of the bucket in the first embodiment of the present invention (the bucket is arranged at the rear side of the frame);

[0029] Figure 5 It is a schematic diagram of the installation structure of the tire limiting frame in the first embodiment of the present invention;

[0030] Figure 6 is a schematic cross-sectional view of the installation location of the tire limit frame in the first embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the structure of a state in which the front wheel of a two-wheeled electric vehicle is clamped in a tire limit frame in the first embodiment of the present invention;

[0032] Figure 8 1 is a schematic diagram of the structure of the connecting mechanism in the first embodiment of the present invention (when the bucket is against the top surface of the frame);

[0033] Fig. 9 yes Figure 8 Schematic diagram of the cross-sectional structure.

[0034] Fig.10 It is a schematic diagram of the structure of the connecting mechanism in the first embodiment of the present invention (when the bucket is arranged at the rear side of the frame).

[0035] Among them: 1. electric tricycle; 2. front wheel; 3. rear wheel; 4. seat; 5. frame; 6. bucket; 7. wheel; 8. connecting rod; 9. connecting mechanism; 10. cavity; 11. two-wheeled electric vehicle; 12. auxiliary seat; 13. support rod; 14. first limit rod; 15. latch; 16. second limit rod; 17. through groove; 18. guide plate; 19. first limit ring; 20. chain; 21. limit pin; 22. second limit ring; 23. hook; 24. reinforcing rib; 25. L-shaped plate; 26. strip through groove; 27. tire limit frame; 28. limit through groove; 29. ​​slider; 30. support plate; 31. vertical plate; 32. limit bolt; 33. metal rod; 34. binding rope; 35. second bearing; 36. first bearing; 37. cross bar; 38. vertical bar; 39. first limit nut. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0037] Example 1: See Figures 1 to 10 As shown, a rescue electric vehicle comprises an electric tricycle 1, the front end of the electric tricycle is a group of front wheels 2, the rear end of the electric tricycle is two groups of rear wheels 3, a seat 4 is provided between the front wheels and the rear wheels, the rear wheels are mounted on a frame 5 of the electric tricycle, a trailer mechanism is also provided on the frame above the rear wheels, the trailer mechanism comprises a bucket 6 and two groups of wheels 7, the two groups of wheels 7 are connected via a connecting rod 8, the two groups of wheels 7 are rotatably connected to the two ends of the connecting rod respectively, the middle part of the connecting rod is connected to the middle part of the front side of the bucket, the top outer edge surface and the bottom outer edge surface of the wheel are arranged above the top surface of the bucket and below the bottom surface, and the two groups of wheels are arranged on the left outer side and the right outer side of the bucket and the frame respectively;

[0038] The bottom surface of the bucket abuts against the top surface of the frame, and the rear end of the bucket is rotatably connected to the rear end of the frame via a connecting mechanism 9;

[0039] The truck bucket is a hollow structure with an opening at the top, and a cavity 10 is provided at the top of the truck bucket;

[0040] When the bucket rotates counterclockwise through the connecting mechanism, the bottom surface of the bucket abuts against the top surface of the frame, and the wheels are arranged close to the seat;

[0041] When the bucket is rotated clockwise via the connecting mechanism, the bucket is arranged outside the rear end of the frame, the bottom surface of the bucket is arranged upward, the top surface of the bucket is arranged downward, and the outer edge surfaces of the two groups of wheels are against the ground, and the bucket is rotatably connected via the connecting mechanism.

[0042] In this embodiment, under normal circumstances, the bucket will flip against the top surface of the frame, so that it is a normally used electric tricycle. When the two-wheeled electric vehicle 11 needs to be rescued, the user flips the bucket clockwise so that the bucket is separated from the top surface of the frame and flipped to the rear end of the frame, so that the wheels are against the ground and can be supported movably. In this way, the wheels support the bucket movably, and the connecting mechanism connects the bucket to the frame, and can prevent the bucket from tilting. Then the user pushes the two-wheeled electric vehicle onto the bucket and the frame, and uses the frame to support and limit the front wheels of the two-wheeled electric vehicle, and the bucket supports and limits the body and rear wheels of the electric vehicle at both ends. Then the user only needs to ride the electric tricycle to take the two-wheeled electric vehicle to a maintenance point or a charging point. It is convenient and fast, and has good convenience. It effectively improves the convenience of rescue, reduces the trouble and waiting time of the owners of the two-wheeled electric vehicles, and also reduces the towing costs of the owners.

[0043] See also Figure 1 , 2 As shown, an auxiliary seat 12 is detachably placed in the cavity, and four groups of support rods 13 are provided at the bottom of the auxiliary seat, and a clearance hole is provided at the bottom of each group of support rods, and the bottom surfaces of the four groups of support rods are against the bottom surface of the cavity; a first limiting rod 14 is provided on the left and right sides of the bottom surface of the cavity, and a latch 15 is provided on the left and right sides of the top surface of the truck bucket, respectively, and each group of the latches is arranged on the outer side corresponding to the top of the first limiting rod, and a limiting hole is provided at the front end of the left and right sides of the auxiliary seat, respectively. When the bottom surface of the truck bucket is against the frame, the auxiliary seat is placed in the cavity, and the clearance holes at the bottom of the two groups of support rods are sleeved on the first limiting rod, and the latches on both sides are respectively inserted into the corresponding group of limiting holes, and the first limiting rod and the latch lock the auxiliary seat in the cavity of the truck bucket.

[0044] A second limiting rod 16 is respectively provided on the left and right sides of the front end of the frame, and the second limiting rod is arranged close to the seat; when the truck bucket is arranged at the rear side of the frame, the auxiliary seat is placed on the frame, and the auxiliary seat is sleeved on the first limiting rod through the clearance holes of the two groups of support rods.

[0045] In this embodiment, when the bucket is against the frame, the auxiliary seat is placed in the cavity of the bucket, so that one person can be carried in the bucket and sit directly on the auxiliary seat. In order to prevent the auxiliary seat from moving when the electric tricycle is moving and ensure its stability, the limit rod is set, and the support rod and the limit rod can be used for limiting, and the pin is inserted into the limit hole to fix the auxiliary seat, so that when there is no person, the auxiliary seat will not shake in the bucket. In this way, when the electric tricycle moves on a bumpy road, the collision between the auxiliary seat and the cavity can be reduced, and the noise and wear can be reduced. When rescuing a two-wheeled electric vehicle, the two-wheeled electric vehicle is placed on the bucket and the frame, the auxiliary seat is removed from the cavity of the bucket, and then directly placed on the front end of the frame, and the second limit rod is used for limiting, so that the owner of the two-wheeled electric vehicle can sit directly on the auxiliary seat, and take the two-wheeled electric vehicle chair to the maintenance point with the electric tricycle, which is more convenient and safe.

[0046] See also Figure 3 , 4 As shown, a through groove 17 is provided at the lower front side of the truck bed 6, the through groove is communicated with the cavity, and the bottom of the through groove is flush with the bottom of the cavity; a guide plate 18 is also provided, and when not in use, one end of the guide plate passes through the through groove and is arranged in the cavity, a first limiting ring 19 is provided in the middle part of the front end of the guide plate, and the first limiting ring is arranged on the outside of the front side of the truck bed, a chain 20 is provided in the middle part of the connecting rod, and a limiting pin 21 is provided at the end of the chain, and the limiting pin is detachably inserted in the first limiting ring.

[0047] Second limiting rings 22 are respectively provided on both sides of the bottom of the front end surface of the truck bucket, and the bottom surface of the second limiting ring is flush with the bottom surface of the truck bucket. Two groups of the second limiting rings are arranged below the through groove, and two groups of downwardly bent hooks 23 are provided at the front end of the guide plate. In the use state, the truck bucket is arranged at the rear side of the frame, and the guide plate is pulled out from the through groove and the cavity. The hooks on both sides of the front end of the guide plate are respectively clamped in a group of the second limiting rings, and the rear end of the guide plate is against the ground.

[0048] Two groups of reinforcing ribs 24 are arranged on the bottom surface of the guide plate. When the guide plate is inserted into the cavity, the reinforcing ribs are arranged toward the top of the cavity, and the hooks are also arranged toward the top of the cavity.

[0049] In this embodiment, after the bucket is flipped to the rear side of the frame, the bottom surface of the bucket faces upward, and the bottom surface of the bucket serves as the bearing surface of the two-wheeled electric vehicle, and there is a height difference between the bearing surface and the ground. In order to facilitate the smooth pushing of the two-wheeled electric vehicle onto the bucket and the frame, it is not necessary to manually move the two-wheeled electric vehicle, or move the two-wheeled electric vehicle from the frame and the bucket to the ground. When passing through the guide plate, when it is necessary to push the two-wheeled electric vehicle onto the bucket or from the bucket to the ground, the two sets of hooks of the guide plate are inserted into the second limiting ring, and the other end of the guide plate is against the ground. The guide plate is tilted downward from front to back, and the front end of the guide plate is close to the bearing surface of the bucket. Then the user pushes the wheels of the two-wheeled electric vehicle forward along the guide plate to the bearing surface of the bucket and the frame. In this way, the user does not need to move the electric vehicle onto the bucket and the frame, which is more labor-saving. After the use of the guide plate is completed, the hook is taken out from the second limiting ring, and then directly inserted into the cavity through the through slot to store the guide plate. In order to prevent the guide plate from being separated from the cavity and the through slot when the electric tricycle moves, the first limit ring and the limit pin are set, the limit pin is inserted into the first limit ring, and the chain is used for secondary limiting. In this way, even if the front end of the guide plate is separated from the through slot, it will be pulled and limited by the chain and the limit pin, so that the guide plate cannot be separated from the cavity and the through slot, thereby ensuring the stability and quality of the guide plate storage.

[0050] See also Figures 5 to 7 As shown, the frame is a hollow structure, and two groups of L-shaped plates 25 are arranged opposite to each other in the middle of the frame. The L-shaped plates are arranged perpendicular to the front end face and the rear end face of the frame, and a strip through groove 26 is formed between the two groups of L-shaped plates; a tire limiting frame 27 is slidably arranged in the strip through groove, and a limiting through groove 28 is arranged in the middle of the tire limiting frame, and the two sides of the tire limiting frame are slidably arranged on the two groups of L-shaped plates via a slider 29.

[0051] The L-shaped plate includes a support plate 30 and a vertical plate 31 which are perpendicular to each other. The bottom of the vertical plate is vertically installed on the outer side of the top surface of the support plate. The two groups of support plates are arranged opposite to each other. The slider is slidably arranged on the vertical plate. The bottom sides of the tire limit frame are against the top surfaces of the two groups of support plates, and the limit groove is arranged between the two groups of support plates.

[0052] A limiting bolt 32 is screwed on the outer side of each group of the sliding blocks, and the inner end of the limiting bolt abuts against the outer side of the vertical plate. The limiting bolt locks the sliding blocks and the tire limiting frame on the L-shaped plate.

[0053] In this embodiment, the length of the frame and the cargo box of the electric tricycle are both shorter than the length of the two-wheeled electric vehicle. Only the length of the cargo box plus the frame will exceed the length of the two-wheeled electric vehicle. Therefore, during rescue, the front wheel of the two-wheeled electric vehicle will be on the frame, and the body and rear wheel of the two-wheeled electric vehicle will be on the cargo box. After placement, the body of the two-wheeled electric vehicle will be supported by the supporting legs to prevent the two-wheeled electric vehicle from tipping over. However, in this case, the two-wheeled electric vehicle can still be rotated by the supporting legs, causing the two-wheeled electric vehicle to detach from the frame and fall from the cargo box. Therefore, through the setting of the tire limiting frame, a limiting groove is set in the middle of the tire limiting frame, so that the bottom of the front wheel of the two-wheeled electric vehicle is directly inserted into the limiting groove, so that the front wheel of the two-wheeled electric vehicle can be limited to prevent the front wheel of the two-wheeled electric vehicle from detaching from the frame, thereby ensuring the stability and quality of the placement of the two-wheeled electric vehicle. At the same time, in order to prevent the two-wheeled electric vehicle from moving back and forth due to vibration during the rescue process, the tire limit frame is locked by the limit bolt, so that the front wheel of the two-wheeled electric vehicle can be limited to prevent the two-wheeled electric vehicle from moving back and forth on the vehicle bucket and frame, thereby ensuring the limiting quality.

[0054] Among them, multiple groups of metal rods 33 are arranged at intervals below the front and rear sides of the truck bed and the frame, and a nut is arranged at the outer end of each group of metal rods. In order to further prevent the two-wheeled electric vehicle on the truck bed and the frame from rolling over, through the arrangement of the metal rods, the user can use the binding rope 34 to pass over the body of the two-wheeled electric vehicle, and then use the metal rods to fix the two ends of the binding rope to achieve the fixation of the two-wheeled electric vehicle, prevent the two-wheeled electric vehicle from falling from the truck bed and the frame during the rescue movement, and ensure the safety and quality of the rescue.

[0055] See also Figure 1 , 2 As shown in , 8, 9, and 10, the connecting mechanism includes a second bearing 35, the outer edge surface of the second bearing is welded to the rear end surface of the bucket, and two groups of first bearings 36 are provided at the rear end of the frame, a cross bar 37 is rotatably mounted on the two groups of the first bearings, a vertical rod 38 is vertically mounted on the middle of the top surface of the cross bar, the axis of the second bearing is arranged perpendicular to the axis of the first bearing, the second bearing is rotatably sleeved on the vertical rod, a first limiting nut 39 is provided on the top of the vertical rod, and the first limiting nut is arranged above the second bearing;

[0056] The second bearing rotates around the vertical rod, and the cross rod and the vertical rod rotate around the first bearing.

[0057] In this way, when the bucket is flipped onto the frame or flipped off the frame, the connection of the cross bar facilitates the flipping of the bucket. Through the arrangement of the second bearing and the vertical rod, when the bucket is flipped to the rear side of the frame and the supporting wheel is against the ground, that is, when a two-wheeled electric vehicle is placed on the bucket and the frame for rescue, when the electric tricycle turns, the bucket can also rotate relative to the frame through the vertical rod and the second bearing, thus ensuring that the bucket can turn smoothly when the electric tricycle turns, reducing the turning angle of the electric tricycle, reducing the probability of the electric tricycle rolling over, and being safer.

[0058] In this embodiment, the front ends of the left and right sides of the frame are provided with a buckle (not shown in the figure), and the front ends of the left and right sides of the bucket are provided with a hook bent upwards, and when the bottom surface of the bucket abuts against the top surface of the frame, each group of the buckle is buckled and connected with a hook. In this way, during normal use, especially when passing through bumpy roads, the bucket can be prevented from bumping up and down on the frame, damage to the bucket and the frame can be prevented, and the noise of collision between the two can be reduced.

Claims

1. A rescue electric vehicle, comprising an electric tricycle, wherein the front end of the electric tricycle is a set of front wheels, the rear end of the electric tricycle is two sets of rear wheels, a seat is provided between the front wheels and the rear wheels, and the rear wheels are mounted on the frame of the electric tricycle, characterized in that: A trailer mechanism is also provided on the frame above the rear wheel, the trailer mechanism includes a truck bucket and two sets of wheels, the two sets of wheels are connected via a connecting rod, the two sets of wheels are rotatably connected to the two ends of the connecting rod respectively, the middle part of the connecting rod is connected to the middle part of the front side of the truck bucket, the top outer edge surface and the bottom outer edge surface of the wheel are arranged above the top surface of the truck bucket and below the bottom surface, and the two sets of wheels are arranged on the left outer side and the right outer side of the truck bucket and the frame respectively; The bottom surface of the bucket abuts against the top surface of the frame, and the rear end of the bucket is rotatably connected to the rear end of the frame via a connecting mechanism; The truck bucket is a hollow structure with an opening at the top, and a cavity is provided at the top of the truck bucket; When the bucket rotates counterclockwise through the connecting mechanism, the bottom surface of the bucket abuts against the top surface of the frame, and the wheels are arranged close to the seat; When the bucket rotates clockwise through the connecting mechanism, the bucket is arranged outside the rear end of the frame, the bottom surface of the bucket is arranged upward, the top surface of the bucket is arranged downward, and the outer edge surfaces of the two groups of wheels are against the ground, and the buckets are connected by rotation through the connecting mechanism; A through slot is provided at the lower front side of the bucket, the through slot is communicated with the cavity, and the bottom of the through slot is flush with the bottom of the cavity; a guide plate is also provided, one end of the guide plate passes through the through slot and is arranged in the cavity when not in use, a first limiting ring is provided at the middle of the front end of the guide plate, the first limiting ring is arranged at the outside of the front side of the bucket, a chain is provided at the middle of the connecting rod, a limiting pin is provided at the end of the chain, and the limiting pin is detachably inserted in the first limiting ring; The frame is a hollow structure, and two groups of L-shaped plates are arranged opposite to each other in the middle of the frame. The L-shaped plates are arranged perpendicular to the front end face and the rear end face of the frame, and a strip-shaped through groove is formed between the two groups of L-shaped plates; a tire limiting frame is slidably arranged in the strip-shaped through groove, and a limiting through groove is arranged in the middle of the tire limiting frame, and both sides of the tire limiting frame are slidably arranged on the two groups of L-shaped plates via a slider.

2. The rescue electric vehicle according to claim 1, characterized in that: An auxiliary seat is detachably placed in the cavity, and four groups of support rods are provided at the bottom of the auxiliary seat, and a clearance hole is provided at the bottom of each group of support rods, and the bottom surfaces of the four groups of support rods are against the bottom surface of the cavity; first limiting rods are provided on the left and right sides of the bottom surface of the cavity, and a latch is provided on the left and right sides of the top surface of the truck bucket, respectively, and each group of latches is arranged on the outer side corresponding to the top of the first limiting rod, and a limiting hole is provided at the front end of the left and right sides of the auxiliary seat, respectively. When the bottom surface of the truck bucket is against the frame, the auxiliary seat is placed in the cavity, and the clearance holes at the bottom of the two groups of support rods are sleeved on the first limiting rod, and the latches on both sides are respectively inserted into the corresponding group of limiting holes, and the first limiting rod and the latch lock the auxiliary seat in the cavity of the truck bucket.

3. The rescue electric vehicle according to claim 2, characterized in that: A second limiting rod is respectively provided on the left and right sides of the front end of the frame, and the second limiting rod is arranged close to the seat; when the vehicle bucket is arranged at the rear side of the frame, the auxiliary seat is placed on the frame, and the auxiliary seat is sleeved on the first limiting rod through the clearance holes of the two groups of support rods.

4. The rescue electric vehicle according to claim 1, characterized in that: Second limiting rings are respectively provided on both sides of the bottom of the front end surface of the truck bucket, and the bottom surfaces of the second limiting rings are arranged flush with the bottom surface of the truck bucket. Two groups of the second limiting rings are arranged below the through groove, and two groups of downwardly bent hooks are arranged at the front end of the guide plate. In use state, the truck bucket is arranged at the rear side of the frame, and the guide plate is pulled out from the through groove and the cavity. The hooks on both sides of the front end of the guide plate are respectively clamped in a group of the second limiting rings, and the rear end of the guide plate is against the ground.

5. The rescue electric vehicle according to claim 4, characterized in that: Two groups of reinforcing ribs are arranged on the bottom surface of the guide plate. When the guide plate is inserted into the cavity, the reinforcing ribs are arranged toward the top of the cavity, and the hooks are also arranged toward the top of the cavity.

6. The rescue electric vehicle according to claim 1, characterized in that: The L-shaped plate includes a supporting plate and a vertical plate which are perpendicular to each other. The bottom of the vertical plate is vertically installed on the outer side of the top surface of the supporting plate. The two groups of supporting plates are arranged opposite to each other. The slider is slidably arranged on the vertical plate. The bottom sides of the tire limiting frame are against the top surfaces of the two groups of supporting plates, and the limiting groove is arranged between the two groups of supporting plates.

7. The rescue electric vehicle according to claim 6, characterized in that: A limiting bolt is screwed on the outer side of each group of the sliding blocks, and the inner end of the limiting bolt abuts against the outer side of the vertical plate. The limiting bolt locks the sliding block and the tire limiting frame on the L-shaped plate.

8. The rescue electric vehicle according to claim 1, characterized in that: The connecting mechanism comprises a second bearing, the outer edge surface of the second bearing is welded to the rear end surface of the bucket, two groups of first bearings are arranged at the rear end of the frame, a cross bar is rotatably mounted on the two groups of the first bearings, a vertical rod is vertically mounted on the middle of the top surface of the cross bar, the axis of the second bearing is arranged perpendicular to the axis of the first bearing, the second bearing is rotatably sleeved on the vertical rod, a first limiting nut is arranged on the top of the vertical rod, and the first limiting nut is arranged above the second bearing; The second bearing rotates around the vertical rod, and the cross rod and the vertical rod rotate around the first bearing.

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