Unloading structure of electric tricycle

Abstract

The invention discloses an unloading structure of an electric tricycle, belonging to the technical field of electric tricycles, comprising: a carriage, a connecting frame is installed on the lower side of the carriage; a frame, the frame and the connecting frame are hinged to each other; two clamping rods, the two clamping rods are both installed on the frame, the clamping rod comprises a clamping portion and an extension portion, and the clamping rod is rotatably installed on the frame with the connection between the clamping portion and the extension portion as the center of a circle; two clamping blocks, the two clamping blocks are installed on the connecting frame and are respectively movably clamped with the clamping portions of the corresponding clamping rods; two top plates, the two top plates are fixedly installed on the connecting frame and are respectively located above the two clamping rods; wherein, when the clamping rod rotates, the clamping rod first disengages from the clamping block, and then the clamping rod applies an upward pressing force to the top plate to assist the carriage to rotate, and when the carriage is turned up, the user can assist the carriage to turn up by stepping on the rotating rod, and in the process of the carriage turning back, the carriage can have a buffering effect, thereby reducing the impact force of the carriage on the frame.

Description

Technical Field

[0001] The invention relates to the technical field of electric tricycles, and in particular to an unloading structure of an electric tricycle. Background Art

[0002] Unloading cargo is a common operation during the use of electric tricycles. The unloading structure of traditional electric tricycles is often designed to be relatively simple, usually relying only on a simple connection and locking mechanism between the carriage and the frame. However, this design has certain inconveniences in actual operation. For example, when turning the carriage up, it is more difficult in the initial stage. In the process of turning the carriage back, the carriage is likely to produce a certain impact force on the frame. After long-term use, the frame is easily damaged. In order to solve the above problems, the present invention provides an unloading structure for an electric tricycle. Summary of the invention

[0003] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide an unloading structure for an electric tricycle. When the carriage is turned up, the user can assist the carriage in turning up by stepping on the turning rod. During the process of the carriage turning back, the carriage can be buffered to reduce the impact force of the carriage on the frame.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solution: The present invention provides an unloading structure of an electric tricycle, comprising:

[0005] A carriage, wherein a connecting frame is installed on the lower side of the carriage;

[0006] A vehicle frame, wherein one end of the vehicle frame close to the rear of the vehicle body is hingedly connected to the connecting frame;

[0007] Two clamping rods, both of which are mounted on the vehicle frame, and the two clamping rods are symmetrical to each other with the center of the vehicle body as a reference, the clamping rods include a clamping portion and an extension portion, and the clamping rods are rotatably mounted on the vehicle frame with the connection between the clamping portion and the extension portion as the center of the circle;

[0008] Two clamping blocks, which are mounted on the connecting frame and are movably clamped with the clamping parts of the corresponding clamping rods respectively;

[0009] Two top plates, the two top plates are fixedly mounted on the connecting frame and are respectively located above the two clamping rods;

[0010] When the clamping rod rotates, the clamping rod is first disengaged from the clamping block, and then the clamping rod applies an upward pressing force to the top plate to assist the rotation of the carriage.

[0011] Preferably, the connection between the clamping portion and the extension portion of the clamping rod is rotatably mounted on the frame via a fixed shaft on the frame, and the length of the clamping rod extension portion is greater than the length of the clamping portion of the clamping rod.

[0012] Preferably, a sliding sleeve is slidably mounted on the outer side of one end of the extended portion of the clamping rod below the fixed shaft, a pedal rod is hinged on the sliding sleeve, the pedal rod is rotatably mounted on the frame through a mounting shaft, and a rotating rod is rotatably mounted on the end of the pedal rod away from the sliding sleeve, and the height of the rotating rod is higher than the height of the sliding sleeve.

[0013] Preferably, the distance between the installation shaft and the sliding sleeve is smaller than the distance between the installation shaft and the rotating rod.

[0014] Preferably, the two sliding sleeves are connected to each other via a transmission rod.

[0015] Preferably, a fixing plate is fixedly connected to the frame below the pedal bar, a first spring is connected between the fixing plate and the pedal bar, and the first spring has an elastic force to push the pedal bar upward.

[0016] Preferably, one end of the clamping block passes through the connecting frame and extends to the inside of the connecting frame, and is connected to the inner side wall of the connecting frame through a second spring, and the second spring has an elastic force to push the clamping block toward the outside of the connecting frame.

[0017] Preferably, the upper side surface of the clamping block is movably clamped with the clamping portion of the clamping rod, the lower side surface is an inclined surface with a higher outer side and a lower inner side, and the end of the clamping block away from the second spring is the outer end.

[0018] Preferably, the clamping portion of the clamping rod is in the shape of a circular arc that bends downward.

[0019] The beneficial effects of the present invention are:

[0020] The present invention realizes the mutual engagement of the clamping rod and the clamping block through the cooperation between the clamping rod, the clamping block and the top plate, so that the carriage can remain stable and will not rotate. During the rotation of the clamping rod, the clamping rod will first be disengaged from the clamping block, and then its rotation will assist the rotation of the carriage through the interaction with the top plate, thereby facilitating the user to rotate the carriage for unloading.

[0021] The card block of the present invention is slidably connected to the connecting frame, and a second spring is connected between the card block and the connecting frame. At the same time, the upper end of the card rod is set to be an arc shape. During the process of the carriage turning back, the card block is squeezed by the card rod, overcomes the elastic force of the second spring, retracts into the inside of the connecting frame, and resets after passing over the card rod. During this process, the card rod will have a buffering effect on the carriage, reducing the impact force of the carriage on the frame, thereby allowing users to operate more safely. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic structural diagram of an unloading structure of an electric tricycle provided in an embodiment of the present invention.

[0024] Figure 2 For the present invention Figure 1 A partial enlarged view of .

[0025] Figure 3 It is a schematic diagram of the connection between the carriage and the connecting frame of the present invention.

[0026] Figure 4 For the present invention Figure 3 A partial enlarged view of .

[0027] Figure 5 It is a schematic diagram of the connection between the connecting frame and the vehicle frame of the present invention.

[0028] Figure 6 For the present invention Figure 5 A partial enlarged view of .

[0029] Figure 7 It is a schematic diagram of the connection between the clamping block and the second spring of the present invention.

[0030] Description of reference numerals:

[0031] 1. Carriage, 2. Connecting frame, 3. Carriage frame, 4. Clamping rod, 5. Clamping block, 6. Top plate, 7. Sliding sleeve, 8. Pedal rod, 9. Mounting shaft, 10. Fixed shaft, 11. Rotating rod, 12. Fixed plate, 13. First spring, 14. Second spring, 15. Transmission rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The present invention provides an unloading structure for an electric tricycle, such as Figures 1 to 7 shown.

[0034] Embodiment 1:

[0035] An unloading structure of an electric tricycle includes a carriage 1, a connecting frame 2 is welded to the lower side of the carriage 1, an ear plate is fixedly connected to one end of the connecting frame 2 close to the rear of the carriage, and the connecting frame 2 is hinged to a frame 3 via the ear plate fixedly connected thereto. During the unloading process, the carriage 1 can rotate around the hinge point between the ear plate and the frame 3.

[0036] A clamping rod 4 is rotatably installed on both sides of the frame 3 through a fixed shaft 10 fixed thereon. The clamping rod 4 includes a clamping portion and an extension portion. The fixed shaft 10 is rotatably connected to the connection between the clamping portion and the extension portion of the clamping portion of the clamping rod 4. A clamping block 5 movably connected to the clamping portion of the clamping rod 4 is installed on the connecting frame 2. A sliding sleeve 7 is slidably sleeved on the outer side of the lower end of the extension portion of the clamping rod 4. A pedal rod 8 is hinged on the sliding sleeve 7. The pedal rod 8 is rotatably installed on the frame 3 through a mounting shaft 9 fixedly connected to the frame 3. A rotating rod 11 is rotatably installed on the end of the pedal rod 8 away from the sliding sleeve 7. The height of the rotating rod 11 is higher than the height of the sliding sleeve 7. When it is necessary to rotate the carriage 1, the user steps on the rotating rod 11 to rotate the pedal rod 8 around the mounting shaft 9, so that the pedal rod 8 moves the extension portion of the clamping rod 4 to the position as shown in the figure through the sliding sleeve 7. Figure 6 The left side is pushed away, so that the clamping rod 4 can rotate clockwise around the fixed axis 10, so that the clamping part of the clamping rod 4 is disengaged from the clamping block 5, and the carriage 1 can be smoothly rotated at this time to carry out the work of unloading goods.

[0037] The two sliding sleeves 7 are connected to each other through a transmission rod 15. When the user operates, the user can push the two clamping rods 4 to rotate at the same time by stepping on the pedal 8 on one side, which makes the operation more convenient for the user.

[0038] A fixing plate 12 is fixedly connected to the frame 3 below the pedal rod 8, and a first spring 13 is connected between the pedal rod 8 and the fixing plate 12. One end of the first spring 13 is fixedly connected to the fixing plate 12, and the other end is fixedly connected to the pedal rod 8. The connection point between the first spring 13 and the pedal rod 8 is located between the mounting shaft 9 and the rotating rod 11. The first spring 13 has an elastic force to push the pedal rod 8 upward, so that the pedal rod 8 will not rotate without external force, so that the clamping rod 4 and the clamping block 5 are stably clamped together.

[0039] Embodiment 2:

[0040] On the basis of the first embodiment, in order to enable the user to turn the carriage 1 more easily, a top plate 6 is provided above the clamping portion of the clamping rod 4, and the top plate 6 is fixedly connected to the connecting frame 2. Figure 6During the clockwise rotation in the direction shown, the engaging portion of the engaging rod 4 will first disengage from the engaging block 5, and then the engaging portion of the engaging rod 4 will contact with the lower side of the top plate 6, and apply an upward pressing force to the top plate 6 during the continued rotation, so that the user can assist in lifting the carriage 1 by stepping on the rotating rod 11, and then the user can more easily turn the carriage 1 to facilitate the unloading work.

[0041] In order to further save the user's effort, by controlling the position of the mounting shaft 9, the distance between the mounting shaft 9 and the sliding sleeve 7 is made smaller than the distance between the mounting shaft 9 and the pedal rod 8, and at the same time, the length of the clamping part of the clamping rod 4 is made smaller than the length of the extended part, thereby forming two effort-saving levers, allowing the user to more easily step on the rotating rod 11 to rotate the pedal rod 8.

[0042] Embodiment three:

[0043] On the basis of the second embodiment, in order to prevent the carriage 1 from generating a large impact force on the frame 3 during the turning process, thereby damaging the frame 3, the clamping block 5 is slidably installed on the connecting frame 2, and one end of the clamping block 5 extends to the inside of the connecting frame 2 and is fixedly connected to the inner wall of the connecting frame 2 through the second spring 14. One end of the second spring 14 is fixedly connected to the inner wall of the connecting frame 2, and the other end is fixedly connected to the clamping block 5. The second spring 14 has an elastic force to push the clamping block 5 toward the outside of the connecting frame 2, so that the clamping block 5 can be stably clamped with the clamping part of the clamping rod 4.

[0044] The upper side surface of the card block 5 is movably connected with the card connection part of the card rod 4, and the lower side surface of the card block 5 is an inclined surface with a higher outside and a lower inside. The end of the card block 5 away from the second spring 14 is the outer end. In the process of the carriage turning back (that is, the carriage turns back to its original horizontal state after unloading the goods), the card connection part of the card rod 4 will squeeze the card block 5 so that the card block 5 overcomes the elastic force of the second spring 14 and retracts into the inside of the connecting frame 2, and after crossing the card rod 4, it extends out of the connecting frame 2 again and is engaged with the card rod 4. When the card rod 4 squeezes the card block 5, it will have a buffering effect on the carriage 1, reducing the impact force of the carriage 1 on the frame 3, and avoiding damage to the frame 3 caused by a large impact force for a long time. At the same time, the card connection part of the card rod 4 is set to a downwardly curved arc shape, so that the card block 5 can be more stably stressed when it conflicts with the card rod 4 during the process of following the rotation of the carriage 1, and can be better retracted into the inside of the connecting frame 2.

[0045] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An unloading structure for an electric tricycle, characterized in that: include: A carriage (1), wherein a connecting frame (2) is installed on the lower side of the carriage (1); A vehicle frame (3), wherein one end of the vehicle frame (3) close to the rear of the vehicle body (1) is hingedly connected to the connecting frame (2); Two clamping rods (4), both of which are mounted on the vehicle frame (3), and the two clamping rods (4) are symmetrical with respect to the center of the vehicle body (1), the clamping rod (4) comprising a clamping portion and an extension portion, and the clamping rod (4) is rotatably mounted on the vehicle frame (3) with the connection between the clamping portion and the extension portion as the center of the circle; Two clamping blocks (5), the two clamping blocks (5) being mounted on the connecting frame (2) and being movably clamped with the clamping parts of the corresponding clamping rods (4); Two top plates (6), the two top plates (6) being fixedly mounted on the connecting frame (2) and respectively located above the two clamping rods (4); When the clamping rod (4) rotates, the clamping rod (4) first disengages from the clamping block (5), and then the clamping rod (4) applies an upward pressing force to the top plate (6) to assist the carriage (1) in rotating; One end of the clamping block (5) passes through the connecting frame (2) and extends to the inside of the connecting frame (2), and is connected to the inner side wall of the connecting frame (2) via a second spring (14), and the second spring (14) has an elastic force to push the clamping block (5) toward the outside of the connecting frame (2); The end of the clamping block (5) away from the second spring (14) is the outer end, the upper side surface of the clamping block (5) is movably clamped with the clamping portion of the clamping rod (4), and the lower side surface is an inclined surface with a higher outer side and a lower inner side; The clamping portion of the clamping rod (4) is in the shape of a circular arc that bends downward.

2. The unloading structure of an electric tricycle as claimed in claim 1, characterized in that: The connection between the clamping portion and the extension portion of the clamping rod (4) is rotatably mounted on the vehicle frame (3) via a fixed shaft (10) on the vehicle frame (3), and the length of the extension portion of the clamping rod (4) is greater than the length of the clamping portion of the clamping rod (4).

3. The unloading structure of an electric tricycle as claimed in claim 2, characterized in that: The extended portion of the clamping rod (4) is located below the fixed shaft (10) and is slidably sleeved on the outer side of one end thereof; a pedal rod (8) is hingedly connected to the slide sleeve (7); the pedal rod (8) is rotatably mounted on the vehicle frame (3) via a mounting shaft (9); and a rotating rod (11) is rotatably mounted on the end of the pedal rod (8) away from the slide sleeve (7); the height of the rotating rod (11) is higher than the height of the slide sleeve (7).

4. The unloading structure of an electric tricycle as claimed in claim 3, characterized in that: The distance between the installation shaft (9) and the sliding sleeve (7) is smaller than the distance between the installation shaft (9) and the rotating rod (11).

5. The unloading structure of an electric tricycle as claimed in claim 4, characterized in that: The two sliding sleeves (7) are connected to each other via a transmission rod (15).

6. The unloading structure of an electric tricycle as claimed in claim 3, characterized in that: A fixing plate (12) is fixedly connected to the frame (3) below the pedal rod (8), and a first spring (13) is connected between the fixing plate (12) and the pedal rod (8). The first spring (13) has an elastic force that pushes the pedal rod (8) upward.

Images