Carriage structure and electric tricycle

Abstract

The present invention discloses a carriage structure and an electric tricycle, belonging to the technical field of carriage structures, comprising a carriage body, a tailgate, a one-way hinged structure and a brake linkage structure; the brake linkage structure connects the tailgate and a brake line, and when the tailgate is opened, the brake line is pulled by the brake linkage structure so that the vehicle enters a passive braking state; the tailgate of the present invention is connected to the carriage body through a one-way hinged structure, and when loading, the tailgate will be opened, and the tailgate is normally opened and in contact with the ground. When a heavy object is placed at the rear of the carriage, the movable ratchet and ratchet groove of the one-way hinged structure are engaged, so that the rear of the carriage is limited from moving downward, thereby avoiding the vehicle from tipping over backwards.

Description

Technical Field

[0001] The invention relates to the field of carriage structures, and in particular to a carriage structure and an electric tricycle. Background Art

[0002] Electric tricycles in the prior art are mostly used for carrying cargo. When loading heavy objects, manpower is limited, so people move the heavy objects to the rear of the car and then move them into the car. When placing the heavy objects at the rear of the car, the electric tricycle will have an imbalance in front and rear weight, and the vehicle will tip over backwards, which can easily cause personal injury and damage to cargo. In addition, when people move the heavy objects to the car, they use a lot of force, and the electric tricycle will move forward under inertia. Therefore, people are required to keep the brakes on before loading, but they may still forget to brake and cause the vehicle to rush forward, which is very dangerous. Based on this, it is necessary to design a car body structure and an electric tricycle that can prevent the electric vehicle from tipping over backwards due to imbalance in front and rear weight. Summary of the invention

[0003] The present invention provides a vehicle compartment structure and an electric tricycle, which can at least solve one problem pointed out in the background technology.

[0004] A carriage structure includes a carriage body, a tailgate, a one-way hinge structure, and a brake linkage structure;

[0005] The tailgate is mounted on the rear side of the vehicle body through a one-way hinge structure, and the one-way hinge structure includes:

[0006] The connecting shaft is fixed on the carriage body, and the tailgate is rotatably arranged on the connecting shaft.

[0007] The movable ratchet is arranged on the connecting shaft, and the movable ratchet has a guiding surface and a limiting surface.

[0008] A groove is formed on the rear baffle plate, the groove being composed of a plurality of ratchet grooves; and

[0009] The driving member is used for driving the movable ratchet to move in a direction away from the ratchet groove.

[0010] When the tailgate is opened, the plurality of ratchet grooves sequentially abut against the guide surfaces of the movable ratchets, so that the movable ratchets move away from the ratchet grooves; when the tailgate is closed, the ratchet grooves abut against the limiting surfaces of the movable ratchets, so that the tailgate cannot move.

[0011] The brake linkage structure is used to connect the tailgate and the brake line. When the tailgate is opened, the brake line is pulled through the brake linkage structure to put the vehicle into a passive braking state.

[0012] The connecting shaft is provided with a mounting groove for accommodating the movable ratchet, a spring 1 is arranged in the mounting groove, and the spring 1 is connected with the movable ratchet.

[0013] One end of the driving member extends out of the carriage body, and the other end is connected to the movable ratchet through a connecting rod. The connecting shaft and the carriage body are both provided with a clearance groove that allows the connecting rod to move up and down.

[0014] Preferably, the brake linkage structure comprises:

[0015] The driven wheel is rotatably arranged on the carriage body, and the driven wheel contacts the rear baffle.

[0016] The clamping claw is a hook-shaped structure.

[0017] A pull rope connecting the driven wheel and the clamping jaw; and

[0018] The brake rod is fixedly connected to the brake line of the vehicle and is perpendicular to the brake line.

[0019] When the driven wheel rotates, the driven wheel reels in the pull rope, thereby pulling the clamp to move along the length direction of the brake line. The clamp contacts the brake rod and drives the brake rod to move synchronously, and the vehicle enters a passive braking state.

[0020] It also includes a guide wheel, which is arranged between the clamping claw and the driven wheel.

[0021] Preferably, it also includes:

[0022] The clamping claw seat is fixedly connected to the carriage body.

[0023] A slider is slidably disposed on the lower side of the clamping jaw seat, and a pull rope is connected to the slider; and

[0024] Spring 2 is connected to the slider and is used for resetting.

[0025] The slider is connected with at least one clamping claw.

[0026] Preferably, it further comprises a brake release structure, wherein the brake release structure comprises an inclined baffle, a straight baffle and a side baffle connecting the inclined baffle and the straight baffle.

[0027] Among them, one end of the straight baffle plate facing the inclined baffle plate is connected to a movable baffle plate through a mounting shaft, the straight baffle plate is provided with a limiting protrusion, and a torsion spring is arranged on the mounting shaft. Under the action of the torsion spring, the movable baffle plate abuts against the limiting protrusion and is in a horizontal state.

[0028] The inclined baffle is located on the moving path of the brake rod.

[0029] When the brakes are applied with the tailgate open, the brake lever follows the movement of the brake line, separates from the clamp and contacts the inclined baffle, and moves downward along the inclined surface of the inclined baffle until it moves to the bottom of the straight baffle. At this time, the brakes are released, and the brake lever moves to the initial position along the lower side of the straight baffle and the lower side of the clamp to release the vehicle from the brake state.

[0030] An electric tricycle comprises the above-mentioned carriage structure.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: the tailgate of the present invention is connected to the vehicle body through a one-way hinge structure. When loading, the tailgate will be opened. The tailgate is normally opened and in contact with the ground. When heavy objects are placed at the rear of the vehicle, the rear of the vehicle can be restricted from moving downward through the engagement of the movable ratchet and ratchet groove of the one-way hinge structure, thereby avoiding the vehicle from tipping over backwards.

[0032] In addition, the tailgate is also connected to the brake line through a brake linkage structure. After the tailgate is opened, the vehicle enters a passive braking state. When people carry heavy objects onto the car, the vehicle will not move a long distance due to inertia, thus avoiding dangerous situations.

[0033] In addition, a brake release structure is also provided. During the cargo loading process, when it is necessary to move the vehicle, the brake line is pulled further by pressing the brake pedal. The brake rod on the brake line is separated from the brake linkage structure. After releasing the brake pedal, the brake line can return to its initial position, thereby achieving the purpose of moving the vehicle without closing the tailgate or when the tailgate cannot be closed due to the cargo being too long. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic structural diagram of the present invention when the carriage is not opened.

[0035] Figure 2 It is a schematic structural diagram of the carriage of the present invention after it is opened.

[0036] Figure 3 It is a partial structural schematic diagram of the one-way hinge structure of the present invention.

[0037] Figure 4 For the present invention Figure 3 Partial cross-sectional view at BB.

[0038] Figure 5 For the present invention Figure 3 A partial enlarged view of point A.

[0039] Figure 6 For the present invention Figure 4 A partial enlarged view of point C.

[0040] Figure 7 It is a structural schematic diagram of the brake linkage structure of the present invention.

[0041] Figure 8 It is a side view of the brake release structure of the present invention.

[0042] Fig. 9 It is a three-dimensional diagram of the brake release structure of the present invention.

[0043] Fig.10 It is a schematic structural diagram of the brake lever of the present invention when it moves between the oblique baffle plate and the straight baffle plate.

[0044] Fig.11 It is a structural schematic diagram of the brake lever of the present invention moving to below the straight baffle.

[0045] Explanation of the accompanying drawings: 1-carriage body, 2-rear baffle, 3-connecting shaft, 4-movable ratchet, 41-guide surface, 42-limiting surface, 5-ratchet groove, 6-driving member, 7-installing groove, 8-spring one, 9-connecting rod, 10-yielding groove, 11-driven wheel, 12-pull rope, 13-guide wheel, 14-claw seat, 15-slider, 16-claw, 17-brake lever, 18-oblique baffle, 19-straight baffle, 20-side baffle, 21-movable baffle, 22-limiting convex part, 23-spring two, 24-brake line. DETAILED DESCRIPTION

[0046] A specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation.

[0047] Embodiment 1

[0048] like Figures 1 to 11 As shown, a vehicle compartment structure provided by an embodiment of the present invention includes a vehicle compartment body 1, a tailgate 2, a one-way hinge structure and a brake linkage structure.

[0049] In order to play a supporting role, the length of the tailgate 2 of this embodiment is longer than the vehicle compartment tailgate of the prior art. After opening, the tailgate 2 can contact the ground, thereby playing a supporting role.

[0050] The car body 1 of this embodiment refers to all parts of the car body except the tailgate 2. The existing car body baffle adopts an ordinary hinged structure and can be directly opened and closed. When heavy objects are placed at the rear of the car, the weight of the front and rear of the vehicle is unbalanced. At this time, the existing car body baffle cannot be supported on the ground, so the vehicle overturns backwards.

[0051] To avoid this situation, the tailgate 2 of the present embodiment is installed on the rear side of the vehicle body 1 through a one-way hinge structure, and the one-way hinge structure includes a connecting shaft 3, a movable ratchet 4, a driving member 6 and a groove opened on the tailgate 2.

[0052] The connecting shaft 3 is fixed on the carriage body 1 , and the tailgate 2 is rotatably disposed on the connecting shaft 3 .

[0053] A mounting groove 7 for accommodating the movable ratchet 4 is provided on the connecting shaft 3 , a spring 8 is arranged in the mounting groove 7 , and the spring 8 is connected to the movable ratchet 4 .

[0054] The groove is composed of a plurality of ratchet grooves 5, and the movable ratchet 4 has a guide surface 41 and a limit surface 42. The driving member 6 can drive the movable ratchet 4 to move in a direction away from the ratchet groove 5. Specifically, one end of the driving member 6 extends out of the carriage body 1, and the other end is connected to the movable ratchet 4 through a connecting rod 9. The connecting shaft 3 and the carriage body 1 are both provided with a clearance groove 10 that allows the connecting rod 9 to move up and down.

[0055] When the tailgate 2 is opened, the plurality of ratchet grooves 5 sequentially abut against the guide surface 41 of the movable ratchet 4, so that the movable ratchet 4 is away from the ratchet grooves 5. When the tailgate 2 is closed, the ratchet grooves 5 abut against the limiting surface 42 of the movable ratchet 4, so that the tailgate 2 cannot move.

[0056] When loading, people use greater force when carrying heavy objects. Under the action of inertia, the heavy objects push the vehicle forward. When the vehicle is out of control, it is easy to hit other people or objects. When loading, the tailgate 2 is generally in an open state. Therefore, the brake linkage structure of this embodiment connects the tailgate 2 and the brake line 24. When the tailgate 2 is opened, the brake line 24 is pulled by the brake linkage structure to make the vehicle enter a passive braking state, thereby reducing the moving distance of the vehicle or even preventing the vehicle from moving.

[0057] The vehicle of this embodiment has two braking states, one is a passive braking state achieved by a brake linkage structure, and the other is an active braking state achieved by the vehicle's own foot brake pedal being pressed to the maximum stroke. The passive braking state is equal to the state where the foot brake pedal is pressed down by one-half to one-quarter of the stroke, which can also serve the purpose of sufficiently restricting the movement of the vehicle.

[0058] Specifically, the brake linkage structure of this embodiment includes a driven wheel 11 , a clamping claw 16 , a pull rope 12 , and a brake rod 17 fixedly connected to a brake line 24 of the vehicle.

[0059] The brake rod 17 and the brake line 24 are in a vertical state.

[0060] The driven wheel 11 is rotatably disposed on the carriage body 1 , and the portion where the carriage body 1 contacts the driven wheel 11 is in an arc shape, so when the carriage body 1 rotates, the driven wheel 11 is driven to rotate.

[0061] The clamping claw 16 of this embodiment is a hook-shaped structure, and the pull rope 12 is used to connect the driven wheel 11 and the clamping claw 16 .

[0062] In order to facilitate the action of pulling the brake wire 24 , the present embodiment further includes a guide wheel 13 , which is arranged between the clamping jaw 16 and the driven wheel 11 . The space between the two here refers to the moving path of the pull rope 12 .

[0063] A support plate for mounting the guide wheel 13 is provided on the lower side of the carriage body 1, but it is not drawn to make the drawing more concise.

[0064] A clamping jaw seat 14 is fixedly connected to the lower side of the carriage body 1, and a slider 15 is slidably arranged on the lower side of the clamping jaw seat 14. The pull rope 12 is connected to the slider 15, and the clamping jaw 16 is also fixedly connected to the lower side of the slider 15, thereby realizing the limit of the clamping jaw 16, so that the clamping jaw 16 can only move along the length direction of the brake line 24. A second spring 23 is also arranged on the clamping jaw seat 14, and the second spring 23 is connected to the slider 15 for resetting. In addition, the slider 15 is connected to at least one clamping jaw 16. In this embodiment, two clamping jaws 16 are taken as an example, and the clamping jaws 16 are located on both sides of the brake line 24.

[0065] When the driven wheel 11 rotates, the driven wheel 11 reels the pull rope 12, thereby pulling the slider 15 to move, so that the clamping claw 16 moves along the length direction of the brake line 24, and the clamping claw 16 abuts against the brake rod 17 (such as Figure 8 As shown), the brake lever 17 is driven to move synchronously, and the vehicle enters a passive braking state.

[0066] In addition, when loading, the vehicle may need to be moved, or the loaded cargo may be too long and the tailgate 2 may not be closed. Therefore, the present embodiment also designs two symmetrical brake release structures, which are also fixedly connected to the pallet.

[0067] Specifically, the brake release structure includes an inclined baffle plate 18 , a straight baffle plate 19 , and a side baffle plate 20 connecting the inclined baffle plate 18 and the straight baffle plate 19 .

[0068] Among them, one end of the straight baffle 19 facing the inclined baffle 18 is connected to a movable baffle 21 through a mounting shaft. The straight baffle 19 has a limiting protrusion 22, and a torsion spring is arranged on the mounting shaft. Under the action of the torsion spring, the movable baffle 21 abuts against the limiting protrusion 22 and is in a horizontal state.

[0069] The inclined baffle 18 is located on the moving path of the brake lever 17 .

[0070] When the rear baffle 2 is open, the brake pedal is depressed to the bottom, and the brake rod 17 continues to move from the passive braking state along the brake line 24 until the brake rod 17 is separated from the clamping claw 16 and abuts against the inclined baffle 18. The brake rod 17 moves downward along the inclined surface of the inclined baffle 18, and the movable baffle 21 on the straight baffle 19 is also pushed open (such as Fig.10 ), until the brake lever 17 moves to the bottom of the straight baffle 19 (as shown in Fig.11 As shown), at this time, the brake is released, the movable baffle 21 has been reset and cannot be opened upward, and the brake lever 17 moves to the initial position along the lower side of the straight baffle 19 and the lower side of the clamping claw 16 in sequence, that is, by deeply stepping on the foot brake pedal, the passive braking state is released, and the vehicle can be moved without closing the tailgate 2.

[0071] When the rear baffle 2 can be closed, the slider 15 returns to the initial position under the action of the spring 23. Since the clamp is hook-shaped and has an arc surface, it can also return to the initial position through the brake rod 17, and the brake rod 17 returns to the moving path of the clamp.

[0072] Embodiment 2

[0073] This embodiment provides an electric tricycle, including the vehicle compartment structure of the first embodiment.

[0074] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit and essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0075] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A carriage structure, characterized in that: It includes a carriage body, a tailgate, a one-way hinge structure and a brake linkage structure; The tailgate is mounted on the rear side of the vehicle body through a one-way hinge structure, and the one-way hinge structure includes: A connecting shaft is fixed to the carriage body, and the tailgate is rotatably arranged on the connecting shaft; A movable ratchet is arranged on the connecting shaft, and the movable ratchet has a guiding surface and a limiting surface; A groove is formed on the rear baffle plate, the groove being composed of a plurality of ratchet grooves; and A driving member, used for driving the movable ratchet to move in a direction away from the ratchet groove; The connecting shaft is provided with a mounting groove for accommodating the movable ratchet, a spring 1 is arranged in the mounting groove, and the spring 1 is connected to the movable ratchet; One end of the driving member extends out of the carriage body, and the other end is connected to the movable ratchet through a connecting rod, and a clearance groove that allows the connecting rod to move up and down is provided on the connecting shaft and the carriage body; When the tailgate is opened, the plurality of ratchet grooves sequentially abut against the guide surfaces of the movable ratchet teeth, so that the movable ratchet teeth are away from the ratchet grooves; when the tailgate is closed, the ratchet grooves abut against the limiting surfaces of the movable ratchet teeth, so that the tailgate cannot move; The brake linkage structure is used to connect the tailgate and the brake line. When the tailgate is opened, the brake line is pulled by the brake linkage structure to put the vehicle into a passive braking state. The brake linkage structure comprises: A driven wheel is rotatably arranged on the carriage body, and the driven wheel contacts the rear fender; The clamping claw is a hook-shaped structure; A pull rope connecting the driven wheel and the clamping jaw; and The brake rod is fixedly connected to the brake line of the vehicle and is perpendicular to the brake line; When the driven wheel rotates, the driven wheel reels in the pull rope, thereby pulling the clamp to move along the length direction of the brake line. The clamp contacts the brake rod and drives the brake rod to move synchronously, and the vehicle enters a passive braking state.

2. The vehicle compartment structure according to claim 1, characterized in that: It also includes a guide wheel, which is arranged between the clamping claw and the driven wheel.

3. The vehicle compartment structure according to claim 2, characterized in that: Also includes: A clamping claw seat, fixedly connected to the carriage body; A slider is slidably arranged on the lower side of the clamping jaw seat, and a pull rope is connected to the slider; as well as Spring 2, connected to the slider, for resetting; The slider is connected with at least one clamping claw.

4. The vehicle compartment structure according to claim 1, characterized in that: Also included is a brake release structure, the brake release structure including an oblique baffle, a straight baffle, and a side baffle connecting the oblique baffle and the straight baffle; Wherein, one end of the straight baffle plate facing the inclined baffle plate is connected to a movable baffle plate through a mounting shaft, the straight baffle plate is provided with a limiting convex portion, and a torsion spring is arranged on the mounting shaft. Under the action of the torsion spring, the movable baffle plate abuts against the limiting convex portion and is in a horizontal state; The inclined baffle is located on the moving path of the brake rod; When the brakes are applied with the tailgate open, the brake lever follows the movement of the brake line, separates from the clamp and contacts the inclined baffle, and moves downward along the inclined surface of the inclined baffle until it moves to the bottom of the straight baffle. At this time, the brakes are released, and the brake lever moves to the initial position along the lower side of the straight baffle and the lower side of the clamp to release the vehicle from the brake state.

5. An electric tricycle, characterized in that: It comprises a carriage structure as described in any one of claims 1 to 4.

Images