Electric bicycle frame with seat cushion adjustment structure

Abstract

The present invention relates to the technical field of electric bicycle frames, and discloses an electric bicycle frame with a seat adjustment structure, comprising a frame and a seat. The seat frame is internally provided with a plurality of adjustment structures corresponding to a rotating disk that can drive an adjustment plate. The adjustment structures are located on the surface where the rotating disk is located. A plurality of electric push rods are connected to the other surface of the inner wall of the seat frame, and a trigger button is connected to the bottom surface of the seat frame. When adjusting the electric bicycle frame with the seat adjustment structure, when it is necessary to move the seat closer to the handle of the frame, a hand wheel away from the frame is rotated, driving the rotating disk to rotate synchronously, and driving the rotating paddle to rotate. When the rotation direction is engaged with the inner ratchet, the inner ratchet is driven to rotate, driving the outer gear ring connected to the outer end of the inner ratchet to rotate, thereby driving the chain to rotate, bringing the seat closer to the frame. When it is necessary to move the seat away from the handle of the frame, the hand wheel close to the frame is rotated to move the seat away from the frame, making the seat adjustment more consistent and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of electric bicycle frames, in particular to an electric bicycle frame with a seat cushion adjustment structure. Background Art

[0002] An electric bicycle is a vehicle that uses a battery as an auxiliary energy source and is based on an ordinary bicycle. It is equipped with a motor, controller, battery, handlebars, brake handles and other operating components and a display instrument system.

[0003] The prior art patent number CN 218594466 U discloses an electric bicycle frame with a seat cushion forward and backward adjustment function, including a frame seat and a bottom mounting frame, and also including a seat adjustment mechanism, wherein the seat adjustment mechanism is composed of a seat cushion plate, a vertical arm, a guide groove, a guide rod, an adjustment hole, a positioning plate, a positioning hole, a pin rod and a pin cover. The bottom end of the frame seat is welded with a bottom mounting frame that can be installed by bolt locking at the frame body where the electric bicycle tire is installed, and a guide groove for the vertical arm surface guide rod to be clamped is provided opposite to the narrow surface of the long side seat body of the frame seat. The seat adjustment mechanism is provided at the frame seat position above the bottom mounting frame of the electric bicycle frame. With the help of the setting of the seat adjustment mechanism, the frame seat position above the bottom mounting frame of the electric bicycle frame has a seat cushion plate structure that can adjust the sitting position forward and backward, which greatly meets the requirements of passengers to adjust the seat cushion plate position forward and backward according to their own sitting position requirements.

[0004] This technology adjusts and locks the seat position by opening a large number of adjustment holes on the frame seat. However, since the adjustment distance each time will be affected by the distance between the two adjustment holes, the adjustment gap will increase, so it is not consistent and cannot meet the adjustment needs of some people. At the same time, the positioning holes are exposed to the air, which will cause the positioning holes to be wetted by rain on rainy days, and then cause the positioning holes to rust quickly, affecting the adjustment of the seat cushion. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In view of the deficiencies of the prior art, the present invention provides an electric bicycle frame with a seat adjustment structure, which has the advantages of continuous adjustment and solves the problems of inconsistent adjustment requiring repeated alignment and being not resistant to rust.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an electric bicycle frame with a seat cushion adjustment structure, comprising a frame and a seat cushion, a seat frame being horizontally connected to one side of the frame, an adjustment plate being slidably connected to the internal cavity of the seat frame, the adjustment plate and the seat cushion being detachably connected, a through groove being provided in the middle of the top surface of the seat frame cavity, and a blocking component being slidably connected to the area between the through groove and the adjustment plate, a plurality of hand wheels being equidistantly connected to the side surface of the seat frame, an output end of the hand wheel passing through the seat frame and being connected to a rotating disk, a plurality of adjustment structures for driving the adjustment plates being arranged inside the seat frame corresponding to the rotating disk, the adjustment structures being located on the surface where the rotating disk is located, a plurality of electric push rods being connected to the other surface of the inner wall of the seat frame, and a trigger button being connected to the bottom surface of the seat frame.

[0009] Preferably, the side of the adjustment plate facing the electric push rod is slidably connected to the inner wall of the seat frame through a guide rail.

[0010] Preferably, the blocking component includes a blocking piece 1 and a blocking piece 2, the two ends of the blocking piece 1 being fixedly mounted on the top edge of the adjustment plate and the inner wall of the seat frame through groove, and the two ends of the blocking piece 2 being fixedly mounted on the other side edge of the top and the inner wall of the seat frame through groove. When the adjustment plate moves away from the frame, it will push the blocking piece 1 and thus cause its multi-section wavy structure to fold, and at the same time, the blocking piece 2 will be stretched, so that the angle at the bend will be converted from an acute angle to an obtuse angle. When the blocking piece 1 and the blocking piece 2 are bent or stretched, the bend will slide along the through groove wall.

[0011] Preferably, the blocking piece 1 has a multi-section wavy structure and is slidingly connected to the inner wall of the seat frame slot at the bending point. The blocking piece 1 is made of soft material, and the material and structure of the blocking piece 2 are exactly the same as those of the blocking piece 1. The lengths of the blocking piece 1 and the blocking piece 2 are respectively equal to the length of the slot.

[0012] Preferably, the adjustment structure includes an inner ratchet, a rotating paddle, an outer gear ring and a chain. The inner ratchet is rotatably connected to the inner wall of the seat frame, the rotating paddle is rotatably connected to the edge of the rotating disk through a torsion spring, and the outer end of the inner ratchet is fixedly mounted with an outer gear ring, and the outer gear ring is engaged with the chain.

[0013] Preferably, there are two hand wheels, the inner ratchet is coaxial with the rotating disk, the rotating paddle is engaged with a tooth of the inner ratchet, and the two inner ratchets and the rotating paddle are set in opposite directions. When the seat needs to be moved closer to the handle of the frame, the handwheel away from the frame is rotated to drive the rotating disk to rotate synchronously and drive the rotating paddle to rotate. When the rotation direction is engaged with the inner ratchet, the inner ratchet will be driven to rotate, thereby driving the outer gear ring connected to the outer end of the inner ratchet to rotate, and then driving the chain to rotate, thereby driving the adjustment plate to move, so that the seat needs to be moved closer to the frame. When the seat needs to be moved away from the handle of the frame, the handwheel close to the frame is rotated to move the seat away from the frame, making the adjustment of the seat more consistent and convenient.

[0014] Preferably, the upper area of ​​the chain is fixedly connected to the side of the adjustment plate, and there is a notch at the bottom of the side of the adjustment plate corresponding to the lower part of the chain. When the chain is transmitted, in order to avoid friction between the lower part of the chain and the adjustment plate, a notch corresponding to the chain is provided at the bottom of the side of the adjustment plate, thereby avoiding contact between the side of the chain and the adjustment plate, thereby ensuring the stability of the transmission of the adjustment plate.

[0015] Preferably, two electric push rods are provided and fixedly mounted on the inner wall of the frame, the electric push rods are coaxial with the hand wheel, the electric push rods are electrically connected to the trigger button, and the output end of the electric push rods is inserted into the rotating disk, and the static friction coefficient of the surface of the output end of the electric push rods is large.

[0016] Compared with the prior art, the present invention provides an electric bicycle frame with a seat cushion adjustment structure, which has the following beneficial effects:

[0017] 1. When making adjustments, when the seat needs to be moved closer to the handle of the frame, turn the handwheel away from the frame, driving the rotating disk to rotate synchronously, and driving the rotating paddle to rotate. When the rotation direction engages with the inner ratchet, it will drive the inner ratchet to rotate, thereby driving the outer gear ring connected to the outer end of the inner ratchet to rotate, and then driving the chain to rotate, thereby driving the adjustment plate to move, so that the seat cushion is closer to the frame. When the seat cushion needs to be moved away from the handle of the frame, turn the handwheel close to the frame to move the seat cushion away from the frame, making the adjustment of the seat cushion more consistent and convenient.

[0018] 2. When the adjustment plate moves away from the frame, it will push the blocking piece 1 and thus fold its multi-section wavy structure. At the same time, the blocking piece 2 will be stretched, so that the angle at the bend will be converted from an acute angle to an obtuse angle. When the blocking piece 1 and the blocking piece 2 are bent or stretched, the bending part will slide along the wall of the through groove, thereby ensuring that the inner wall of the seat frame is less susceptible to invasion by external dust and water vapor. The lengths of the blocking piece 1 and the blocking piece 2 are respectively equal to the length of the through groove, which can ensure that when the adjustment plate moves to the edge of the through groove, any blocking piece will not be stretched to the longest, ensuring that the wavy shape can still be maintained during recycling, and can be used multiple times.

[0019] 3. When the chain is transmitting, in order to avoid the friction of the lower part of the chain on the adjusting plate, a notch corresponding to the chain is set at the bottom of the side of the adjusting plate, so as to avoid contact between the side of the chain and the adjusting plate, thereby ensuring the stability of the transmission of the adjusting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic three-dimensional diagram of the structure of the present invention;

[0021] Figure 2 It is a three-dimensional schematic diagram of the seat frame portion of the structure of the present invention;

[0022] Figure 3 This is a schematic cross-sectional view of the structural frame of the present invention;

[0023] Figure 4 This is a partial enlarged schematic diagram of structure A of the present invention;

[0024] Figure 5 It is a side cross-sectional schematic diagram of the seat frame of the present invention;

[0025] Figure 6 This is a partial enlarged schematic diagram of structure B of the present invention;

[0026] Among them: 1. Frame; 2. Seat frame; 3. Cushion; 4. Adjustment plate; 5. Blocking component; 501. Blocking plate 1; 502. Blocking plate 2; 6. Handwheel; 7. Rotating plate; 8. Inner ratchet; 9. Rotating paddle; 10. Outer gear ring; 11. Chain; 12. Electric push rod; 13. Trigger button. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-6, an electric bicycle frame with a seat cushion adjustment structure, including a frame 1 and a seat cushion 3, a seat frame 2 is horizontally connected to one side of the frame 1, an adjustment plate 4 is slidably connected to the internal cavity of the seat frame 2, the adjustment plate 4 and the seat cushion 3 are detachably connected, a through groove is opened in the middle of the top surface of the cavity of the seat frame 2, and a blocking component 5 is slidably connected to the area between the through groove and the adjustment plate 4, a plurality of hand wheels 6 are equidistantly connected to the side of the seat frame 2, the output end of the hand wheel 6 passes through the seat frame 2 and is connected to a rotating disk 7, a plurality of adjustment structures that can drive the adjustment plate 4 are provided inside the seat frame 2 corresponding to the rotating disk 7, the adjustment structure is on the surface where the rotating disk 7 is located, and the other surface of the inner wall of the seat frame 2 is connected There are multiple electric push rods 12, and a trigger button 13 is connected to the bottom surface of the seat frame 2. When adjusting, the hand wheel 6 is rotated respectively to make the rotating disk 7 rotate synchronously, thereby driving the adjustment structure to rotate forward or reverse, so that the seat cushion 3 moves forward or backward. After the adjustment is completed, the electric push rod 12 is driven by the trigger button 13 to extend the electric push rod 12, so that the output end of the electric push rod 12 is inserted into the groove on the side of the rotating disk 7, and then the locking is completed. The energy supply of the trigger button 13 and the electric push rod 12 is the electric vehicle power supply inside the frame 1 body, and it can only be adjusted when the electric vehicle is started.

[0029] Furthermore, the blocking component 5 includes a blocking piece 1 501 and a blocking piece 2 502. The two ends of the blocking piece 1 501 are respectively fixedly mounted on the top edge of the adjustment plate 4 and the inner wall of the through groove of the seat frame 2, and the two ends of the blocking piece 2 are respectively fixedly mounted on the other side edge of the top and the inner wall of the through groove of the seat frame 2. The side surface of the adjustment plate 4 and the interior of the seat frame 2 are slidably connected through a slide rail, which can ensure the stability of the movement of the adjustment plate 4, and the bottom surface of the adjustment plate 4 and the seat frame 2 are in contact. Then, the adjustment plate 4 is driven by the adjustment structure to drive the seat cushion 3 to slide back and forth along the through groove. After the adjustment is completed, the rotating disk 7 is locked by the extended end of the electric push rod 12 to complete the adjustment.

[0030] Furthermore, the blocking piece 1 501 has a multi-segment wavy structure and is slidably connected to the inner wall of the through-slot of the seat frame 2 at the bending point. The blocking piece 1 501 is made of soft material, and the material and structure of the blocking piece 2 502 are completely consistent with those of the blocking piece 1 501. The lengths of the blocking piece 1 501 and the blocking piece 2 502 are respectively equal to the length of the through-slot. When the adjustment plate 4 moves away from the frame 1, it pushes the blocking piece 1 501 to fold its multi-segment wavy structure, and at the same time, the blocking piece 2 502 will be stretched, so that The angle at the bend is converted from an acute angle to an obtuse angle. When the blocking piece 1 501 and the blocking piece 2 502 are bent or stretched, the bend will slide along the wall of the through groove, thereby ensuring that the inner wall of the seat frame 2 is less likely to be invaded by external dust and water vapor. The lengths of the blocking piece 1 501 and the blocking piece 2 502 are respectively equal to the length of the through groove, which can ensure that when the adjustment plate 4 moves to the edge of the through groove, any blocking piece will not be stretched to the longest, ensuring that the wavy shape can still be maintained during recycling, and can be used multiple times.

[0031] Furthermore, the adjustment structure includes an inner ratchet 8, a rotating paddle 9, an outer gear ring 10 and a chain 11. The inner ratchet 8 is rotatably connected to the inner wall of the seat frame 2, and the rotating paddle 9 is rotatably connected to the edge of the rotating disk 7 through a torsion spring. The outer gear ring 10 is fixedly installed on the outer end of the inner ratchet 8, and the outer gear ring 10 and the chain 11 are engaged with each other. When the handwheel 6 is rotated, it can ensure that the rotating disk 7 rotates synchronously and drives the rotating paddle 9 to rotate. When the rotation direction is engaged with the inner ratchet 8, it will drive the inner ratchet 8 to rotate, thereby driving the outer gear ring 10 connected to the outer end of the inner ratchet 8 to rotate, and then driving the chain 11 to rotate, thereby driving the adjustment plate 4 to move. When the rotation direction is not engaged with the inner ratchet 8, the torsion spring at the rotating shaft of the rotating paddle 9 will rebound, and then engage with the next tooth, and will not drive the inner ratchet 8 to rotate.

[0032] Furthermore, the two inner ratchets 8 and the rotating paddles 9 are set in opposite directions, so that the rotation directions of the two hand wheels 6 are different when adjusting. When one of the hand wheels 6 rotates, the inner ratchet 8 corresponding to the other hand wheel 6 will push the rotating paddle 9 to drive the rotating disk 7 to rotate. At this time, the rotation directions of the two hand wheels 6 are the same, so that the adjustment plate 4 can be driven to move by rotating the hand wheel 6 to drive the rotation of the chain 11, thereby adjusting the position of the seat cushion 3.

[0033] Furthermore, in order to avoid the friction of the lower part of the chain 11 on the adjustment plate 4 when the chain 11 is transmitting, a notch corresponding to the chain 11 is provided at the bottom of the side of the adjustment plate 4, thereby avoiding contact between the side of the chain 11 and the adjustment plate 4, thereby ensuring the stability of the transmission of the adjustment plate 4.

[0034] Furthermore, two electric push rods 12 are provided and fixedly mounted on the inner wall of the seat frame 2. The electric push rods 12 are coaxial with the hand wheel 6. The electric push rods 12 are electrically connected to the trigger button 13, and the output end of the electric push rod 12 is inserted into the rotating disk 7. The static friction coefficient of the output end surface of the electric push rod 12 is large. At the end of the adjustment, the electric push rod 12 is driven by the trigger button 13 to extend the output end of the electric push rod 12 and insert it into the side of the rotating disk 7, so that the rotating hand wheel 6 at this time will be subjected to the friction force generated by the larger torsion, thereby completing the locking.

[0035] When in use, before adjusting, it is necessary to ensure that no one sits on the seat cushion 3 or places heavy objects on it, so as to reduce the friction between the bottom surface of the adjustment plate 4 and the seat frame 2. Later, when adjusting, when it is necessary to move the seat cushion 3 closer to the handle of the frame 1, turn the handwheel 6 away from the frame 1, drive the rotating disk 7 to rotate synchronously, and drive the rotating paddle 9 to rotate. When the rotation direction engages with the inner ratchet 8, it will drive the inner ratchet 8 to rotate, thereby driving the outer gear ring 10 connected to the outer end of the inner ratchet 8 to rotate, and then drive the chain 11 to rotate, thereby driving the adjustment plate 4 to move, so that the seat cushion 3 is close to the frame 1. When it is necessary to move the seat cushion 3 away from the handle of the frame 1, turn the handwheel 6 close to the frame 1 to move the seat cushion 3 away from the frame 1, so that the adjustment of the seat cushion is more consistent and convenient.

[0036] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An electric bicycle frame with a seat cushion adjustment structure, comprising a frame (1) and a seat cushion (3), wherein one side of the frame (1) is horizontally connected to a seat frame (2), and characterized in that: An adjustment plate (4) is slidably connected to the inner cavity of the seat frame (2), and the adjustment plate (4) is detachably connected to the seat cushion (3). A through slot is provided in the middle of the top surface of the cavity of the seat frame (2), and a blocking component (5) is slidably connected to the area between the through slot and the adjustment plate (4). A plurality of hand wheels (6) are equidistantly connected to the side of the seat frame (2), and the output end of the hand wheel (6) passes through the seat frame (2) and is connected to a rotating disk (7). A plurality of hand wheels (6) that can drive the adjustment plate (4) are provided inside the seat frame (2) corresponding to the rotating disk (7). The adjusting structure is located on the surface where the rotating disk (7) is located. The other surface of the inner wall of the seat frame (2) is connected to a plurality of electric push rods (12). The bottom surface of the seat frame (2) is connected to a trigger button (13). The side of the adjusting plate (4) facing the electric push rods (12) is slidably connected to the inner wall of the seat frame (2) through a guide rail. The blocking component (5) includes a blocking piece 1 (501) and a blocking piece 2 (502). The adjusting structure includes an inner ratchet (8), a rotating paddle (9), an outer gear ring (10) and a chain (11).

2. The electric bicycle frame with a seat cushion adjustment structure according to claim 1, characterized in that: The two ends of the blocking piece 1 (501) are respectively fixedly mounted on the top edge of the adjustment plate (4) and the inner wall of the through slot of the seat frame (2), and the two ends of the blocking piece 2 (502) are respectively fixedly mounted on the other side edge of the top and the inner wall of the through slot of the seat frame (2).

3. The electric bicycle frame with a seat adjustment structure according to claim 1, characterized in that: The blocking piece 1 (501) has a multi-section wavy structure and is slidably connected to the inner wall of the through slot of the seat frame (2) at the bending point. The blocking piece 1 (501) is made of soft material. The material and structure of the blocking piece 2 (502) are completely consistent with those of the blocking piece 1 (501). The lengths of the blocking piece 1 (501) and the blocking piece 2 (502) are respectively equal to the length of the through slot.

4. The electric bicycle frame with a seat adjustment structure according to claim 1, characterized in that: The inner ratchet (8) is rotatably connected to the inner wall of the seat frame (2), the rotating paddle (9) is rotatably connected to the edge of the rotating disk (7) via a torsion spring, and an outer gear ring (10) is fixedly mounted on the outer end of the inner ratchet (8), and the outer gear ring (10) is meshed with the chain (11).

5. The electric bicycle frame with a seat adjustment structure according to claim 1, characterized in that: There are two hand wheels (6), the inner ratchet (8) is coaxial with the rotating disk (7), the rotating paddle (9) is engaged with a tooth of the inner ratchet (8), and the two inner ratchets (8) and the rotating paddle (9) are arranged in opposite directions.

6. The electric bicycle frame with a seat adjustment structure according to claim 1, characterized in that: The upper area of ​​the chain (11) is fixedly connected to the side of the adjustment plate (4), and a notch corresponding to the lower part of the chain (11) is present at the bottom of the side of the adjustment plate (4).

7. The electric bicycle frame with a seat adjustment structure according to claim 1, characterized in that: Two electric push rods (12) are provided and fixedly mounted on the inner wall of the seat frame (2). The electric push rods (12) are coaxial with the hand wheel (6). The electric push rods (12) are electrically connected to the trigger button (13). The output end of the electric push rod (12) is inserted into the rotating disk (7). The static friction coefficient of the surface of the output end of the electric push rod (12) is large.

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