Firm frame for tricycle
By installing a reinforcement device on the connecting rod of the tricycle frame and forming a circular tube structure using reinforcement plates and bolts, the problem of bending of the connecting rod under stress is solved, thus improving the frame's sturdiness and performance.
Patent Information
- Application Number
- CN202520423614.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-12
AI Technical Summary
The connecting rod in the middle of the tricycle frame is prone to bending and deformation under stress, which affects the frame's stability and performance.
A reinforcement device is used, which forms a circular tube structure through the first and second reinforcement plates, and is fixed to the surface of the connecting rod with bolts to enhance the strength of the connecting rod.
It effectively prevents the connecting rod from bending under stress, improves the frame's stability, and enhances the tricycle's performance.
Smart Images
Figure CN223934874U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle frames, and in particular to a robust vehicle frame for tricycles. Background Technology
[0002] The tricycle frame is the main structural part of the tricycle, bearing the entire weight of the vehicle. Tricycle frames are usually made of metal materials, such as steel or aluminum alloy.
[0003] When using a tricycle, handlebars, wheels, seats, and other accessories are installed onto the frame before the tricycle is used. During frame use, the connecting rods in the middle of the frame are prone to bending and deformation under significant stress, which can affect the frame's stability and consequently impact the tricycle's performance. Utility Model Content
[0004] The technical problem this utility model aims to solve is that when using the frame body, the connecting rod in the middle of the frame body is prone to bending and deformation when subjected to large forces, which affects the stability of the frame body and thus affects the performance of the tricycle frame.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a sturdy frame for a tricycle, including a frame body, a connecting rod provided in the middle of the frame body, the connecting rod connecting the front end area and the rear end area of the frame body, a reinforcing device provided on the surface of the connecting rod, the reinforcing device reinforcing the strength of the connecting rod through a circular tube formed by a first reinforcing plate and a second reinforcing plate.
[0006] The effect achieved by the above components is as follows: when the frame body is in use, the connecting rod connects the area at the rear of the frame body where two wheels are installed and the area at the front of the frame body where one wheel is installed. Then, handlebars, wheels, seats and other accessories are installed on the frame body for use, and the connecting rod is reinforced with a reinforcement device.
[0007] Preferably, the reinforcement device includes a first reinforcement plate located on the side of the connecting rod closest to the ground; an extension plate for placing bolts and located on both sides of the first fixing plate; a fixing plate fixed to one side of the extension plate and the first reinforcement plate by bolts and located on both sides of the second reinforcement plate; and a second reinforcement plate, whose fixing plate is fixed by bolts to form a circular tube with the first reinforcement plate, which is then fitted and fixed to the surface of the connecting rod to reinforce it.
[0008] The effect achieved by the above components is as follows: when reinforcing the connecting rod, the first reinforcing plate is placed on the side of the connecting rod closest to the ground, and then the fixing plates on both sides of the second reinforcing plate are attached to the extension plate of the first reinforcing plate to form a circular tube shape. Then, the bolts are rotated so that the bolts pass through the extension plate and the fixing plate for threaded fixation, and then the connection and fixation of the first reinforcing plate and the second reinforcing plate are completed.
[0009] Preferably, the surfaces of the first reinforcing plate and the second reinforcing plate are each provided with a plurality of anti-slip blocks, which are located on the arc surfaces of the first reinforcing plate and the second reinforcing plate to increase the friction of the arc surfaces of the first reinforcing plate and the second reinforcing plate.
[0010] The effect achieved by the above components is that the several anti-slip blocks fixed on the arc surfaces of the first and second fixed plates increase the friction between the operator and the first and second fixed plates, making it easier for the operator to move the first and second fixed plates.
[0011] Preferably, a washer is provided at the gap between the bolt and the extension plate, and the washer increases the contact area between the nut of the bolt and the extension plate.
[0012] The effect achieved by the above components is as follows: when the bolt is used, it will pass through the washer and then enter the extension plate and the fixing plate for threaded fixation. The washer increases the contact area between the bolt and the extension plate, making the bolt less likely to reverse, thereby improving the bolt's performance.
[0013] Preferably, the inner walls of the first and second reinforcing plates that are close to each other are arc-shaped.
[0014] The effect achieved by the above components is that the interior of the first and second reinforcing plates is arc-shaped and has toughness. Then, a small bending deformation is performed to make the inner walls of the first and second reinforcing plates fit and fix better with the connecting rod.
[0015] Preferably, auxiliary components are provided on both sides of the first reinforcing plate. The auxiliary components include through holes formed on the first reinforcing plate and positioning blocks located on both sides of the fixing plate, and the dimensions of the positioning blocks are adapted to the dimensions of the first reinforcing plate.
[0016] The effect achieved by the above components is as follows: when the first and second reinforcing plates are bonded together, the positioning blocks on both sides of the fixing plate will be inserted into the through holes on the surface of the first reinforcing plate. Then, the second reinforcing plate is moved so that it moves the positioning blocks fixed on both sides of the fixing plate through the fixing plate. This causes the L-shaped area of the positioning block away from the reinforcing plate to contact the surface of the first reinforcing plate, thus preventing the first and second reinforcing plates from being directly separated. This also completes the positioning between the fixing plate and the extension plate, making it convenient for operators to use bolts to fix the first and second reinforcing plates in place.
[0017] Preferably, the auxiliary component includes a magnet located on the inner wall of the through hole on the surface of the first reinforcing plate; and an iron block located on the side of the positioning block near the magnet, and the iron block and the magnet are magnetically attracted to each other.
[0018] The effect achieved by the above components is that after the positioning block reaches the designated area, the magnet fixed on the inner wall of the through hole on the surface of the first reinforcing plate will attract the iron block fixed on the positioning block, making the positioning block less likely to move, thereby improving the use effect of the positioning block.
[0019] Preferably, the auxiliary component includes inclined grooves formed on both sides of the through hole on the surface of the first reinforcing plate.
[0020] The effect achieved by the above components is as follows: when the positioning block is inserted into the through hole on the surface of the first reinforcing plate, the inclined groove in the through hole on the surface of the first reinforcing plate increases the size of the through hole entrance, making it easier for the positioning block to be inserted into the through hole on the surface of the first reinforcing plate.
[0021] In summary, the beneficial effects of this utility model are as follows:
[0022] By using reinforcement devices, the connecting rods of the vehicle frame can be strengthened to prevent them from bending under excessive stress, thereby improving the stability of the vehicle frame and enhancing its performance. Attached Figure Description
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0025] Figure 2 This utility model Figure 1 A schematic diagram of a partial three-dimensional structure;
[0026] Figure 3 This is a three-dimensional structural diagram of the reinforcement device of this utility model;
[0027] Figure 4 This utility model Figure 3A schematic diagram of the three-dimensional structure viewed from below;
[0028] Figure 5 This utility model Figure 3 Enlarged view of point A.
[0029] Legend: 1. Frame body; 2. Connecting rod; 3. Reinforcing device; 31. First reinforcing plate; 32. Extension plate; 33. Bolt; 34. Fixing plate; 35. Second reinforcing plate; 36. Anti-slip block; 37. Shim; 4. Auxiliary component; 41. Through hole; 42. Positioning block; 43. Magnet; 44. Iron block; 45. Inclined groove. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Figures 1 to 5 The diagram shows a robust frame for a tricycle, comprising a frame body 1. A connecting rod 2 is disposed in the middle of the frame body 1, connecting the front and rear ends of the frame body 1. A reinforcing device 3 is provided on the surface of the connecting rod 2. The reinforcing device 3 reinforces the strength of the connecting rod 2 through a circular tube formed by a first reinforcing plate 31 and a second reinforcing plate 35. When the frame body 1 is in use, the connecting rod 2 connects the rear end area where two wheels are mounted and the front end area where one wheel is mounted. Handlebars, wheels, seats, and other accessories are then mounted on the frame body 1 for use, and the connecting rod 2 is reinforced by the reinforcing device 3.
[0033] Figures 1 to 5The reinforcement device 3 shown includes a first reinforcement plate 31, which is located on the side of the connecting rod 2 closest to the ground; an extension plate 32, which holds the bolts 33 and is located on both sides of the first fixing plate 34; a fixing plate 34, which is fixed to one side of the extension plate 32 and the first reinforcement plate 31 by the bolts 33 and is located on both sides of the second reinforcement plate 35; and a second reinforcement plate 35, which, after the fixing plate 34 of the second reinforcement plate 35 is fixed by the bolts 33, forms a circular tube with the first reinforcement plate 31 to be sleeved and fixed on the surface of the connecting rod 2 to reinforce the connecting rod 2. When reinforcing the connecting rod 2, the first reinforcing plate 31 is placed on the side of the connecting rod 2 closest to the ground. Then, the fixing plates 34 on both sides of the second reinforcing plate 35 are attached to the extension plate 32 of the first reinforcing plate 31 to form a circular tube shape. Then, the bolt 33 is rotated so that the bolt 33 passes through the extension plate 32 and is threadedly fixed to the fixing plate 34. Then, the connection and fixation of the first reinforcing plate 31 and the second reinforcing plate 35 are completed.
[0034] Figures 1 to 5 The surfaces of the first reinforcing plate 31 and the second reinforcing plate 35 shown are each provided with a plurality of anti-slip blocks 36. These anti-slip blocks 36 are located on the arc surfaces of the first and second reinforcing plates 31 and 35 to increase the friction between these arc surfaces. The plurality of anti-slip blocks 36 fixed to the arc surfaces of the first and second fixing plates 34 further increase the friction between the operator and the first and second fixing plates 34, making them easier for the operator to move. A washer 37 is provided at the gap between the bolt 33 and the extension plate 32. The washer 37 increases the contact area between the bolt 33's nut and the extension plate 32. When the bolt 33 is in use, it passes through the washer 37 before entering the extension plate 32 and threading onto the fixing plate 34. The washer 37 further increases the contact area between the bolt 33 and the extension plate 32, making it less likely for the bolt 33 to reverse, thus improving the bolt's performance. The inner walls of the first reinforcing plate 31 and the second reinforcing plate 35 are arc-shaped and close to each other. The interiors of the first reinforcing plate 31 and the second reinforcing plate 35 are arc-shaped and have toughness. They are then subjected to small-amplitude bending deformation to better fit and fix the inner walls of the first reinforcing plate 31 and the second reinforcing plate 35 to the connecting rod 2.
[0035] Figures 1 to 5The first reinforcing plate 31 shown has auxiliary components 4 on both sides. The auxiliary components 4 include through holes 41 opened on the first reinforcing plate 31 and positioning blocks 42 located on both sides of the fixing plate 34, and their size is adapted to the size of the first reinforcing plate 31. When the first reinforcing plate 31 and the second reinforcing plate 35 are attached together, the positioning blocks 42 on both sides of the fixing plate 34 will be inserted into the through holes 41 on the surface of the first reinforcing plate 31. Then, the second reinforcing plate 35 is moved so that the second reinforcing plate 35 moves through the fixing plate 34, thereby driving the positioning blocks 42 fixed on both sides of the fixing plate 34 to move. This makes the L-shaped area of the positioning block 42 away from the reinforcing plate contact the surface of the first reinforcing plate 31, so that the first reinforcing plate 31 and the second reinforcing plate 35 cannot be directly separated vertically. This completes the positioning between the fixing plate 34 and the extension plate 32, and then facilitates the operator to fix the first reinforcing plate 31 and the second reinforcing plate 35 with bolts 33.
[0036] Figures 1 to 5 The auxiliary component 4 shown includes a magnet 43 located on the inner wall of the through hole 41 on the surface of the first reinforcing plate 31; and an iron block 44 located on the side of the positioning block 42 near the magnet 43, with the iron block 44 magnetically attracted to the magnet 43. After the positioning block 42 reaches the designated area, the magnet 43 fixed on the inner wall of the through hole 41 on the surface of the first reinforcing plate 31 will attract the iron block 44 fixed on the positioning block 42, making it difficult for the positioning block 42 to move, thereby improving the usability of the positioning block 42. The auxiliary component 4 includes inclined grooves 45 formed on both sides of the through hole 41 on the surface of the first reinforcing plate 31. When the positioning block 42 is inserted into the through hole 41 on the surface of the first reinforcing plate 31, the inclined grooves 45 in the through hole 41 on the surface of the first reinforcing plate 31 increase the size of the entrance of the through hole 41, making it easier for the positioning block 42 to be inserted into the through hole 41 on the surface of the first reinforcing plate 31.
[0037] Working principle: When the frame body 1 is in use, the connecting rod 2 connects the area at the rear of the frame body 1 where two wheels are installed and the area at the front where one wheel is installed. Then, handlebars, wheels, seats, and other accessories are installed on the frame body 1 for use. The connecting rod 2 is reinforced by the reinforcing device 3. When reinforcing the connecting rod 2, the first reinforcing plate 31 is placed on the side of the connecting rod 2 closest to the ground. Then, the fixing plates 34 on both sides of the second reinforcing plate 35 are attached to the extension plates 32 of the first reinforcing plate 31 to form a cylindrical shape. When the first reinforcing plate 31 and the second reinforcing plate 35 are attached, the positioning blocks 42 on both sides of the fixing plate 34 are inserted into the through holes 41 on the surface of the first reinforcing plate 31. Then, the second reinforcing plate 35 is moved, causing it to move through the fixing plate 34, thereby moving the positioning blocks 42 fixed on both sides of the fixing plate 34. The L-shaped area away from the reinforcing plate 42 contacts the surface of the first reinforcing plate 31, so that the first reinforcing plate 31 and the second reinforcing plate 35 cannot be directly separated from each other, and the positioning between the fixing plate 34 and the extension plate 32 is completed. At this time, the magnet 43 fixed on the inner wall of the through hole 41 on the surface of the first reinforcing plate 31 will attract the iron block 44 fixed on the positioning block 42, making the positioning block 42 difficult to move. Then, the bolt 33 is rotated so that the bolt 33 passes through the extension plate 32 and is threadedly fixed to the fixing plate 34, and then the connection and fixation between the first reinforcing plate 31 and the second reinforcing plate 35 is completed.
[0038] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A robust frame for a tricycle, comprising a frame body (1), characterized in that: A connecting rod (2) is provided in the middle of the frame body (1). The connecting rod (2) connects the front end area and the rear end area of the frame body (1). A reinforcing device (3) is provided on the surface of the connecting rod (2). The reinforcing device (3) reinforces the strength of the connecting rod (2) through a circular tube formed by the first reinforcing plate (31) and the second reinforcing plate (35).
2. A robust frame for a tricycle according to claim 1, characterized in that: The reinforcement device (3) includes a first reinforcement plate (31), which is located on the side of the connecting rod (2) closer to the ground; Extension plate (32) is used to place bolts (33), and extension plate (32) is located on both sides of the first fixing plate (34); The fixing plate (34) is fixed to one side of the extension plate (32) and the first reinforcing plate (31) by bolts (33), and the fixing plate (34) is located on both sides of the second reinforcing plate (35); The second reinforcing plate (35) and the fixing plate (34) of the second reinforcing plate (35) are fixed by bolts (33) to form a round tube with the first reinforcing plate (31) to be fitted and fixed on the surface of the connecting rod (2) to reinforce the connecting rod (2).
3. A robust frame for a tricycle according to claim 2, characterized in that: The surfaces of the first reinforcing plate (31) and the second reinforcing plate (35) are provided with a plurality of anti-slip blocks (36), and the plurality of anti-slip blocks (36) are located on the arc surfaces of the first reinforcing plate (31) and the second reinforcing plate (35) to improve the friction of the arc surfaces of the first reinforcing plate (31) and the second reinforcing plate (35).
4. A robust frame for a tricycle according to claim 3, characterized in that: A washer (37) is provided at the gap between the bolt (33) and the extension plate (32), and the washer (37) increases the contact area between the nut of the bolt (33) and the extension plate (32).
5. A robust frame for a tricycle according to claim 4, characterized in that: The inner walls of the first reinforcing plate (31) and the second reinforcing plate (35) that are close to each other are arc-shaped.
6. A robust frame for a tricycle according to claim 5, characterized in that: The first reinforcing plate (31) is provided with auxiliary components (4) on both sides, and the auxiliary components (4) include through holes (41) opened on the first reinforcing plate (31). Positioning blocks (42) are located on both sides of the fixing plate (34) and their dimensions are adapted to the dimensions of the first reinforcing plate (31).
7. A robust frame for a tricycle according to claim 6, characterized in that: The auxiliary component (4) includes a magnet (43), which is located on the inner wall of the through hole (41) on the surface of the first reinforcing plate (31); Iron block (44) is located on the side of positioning block (42) close to magnet (43), and iron block (44) and magnet (43) are magnetically attracted to each other.
8. A robust frame for a tricycle according to claim 7, characterized in that: The auxiliary component (4) includes inclined grooves (45) formed on both sides of the through hole (41) on the surface of the first reinforcing plate (31).