A high-efficiency range extender for a motorcycle engine

Abstract

The application provides a motorcycle engine high-efficiency range extender, which comprises an engine with a casing, a generator with a flange plate, and a quick locker, wherein a plurality of flange holes are formed in the thickness direction of the flange plate, the quick locker comprises a plurality of quick-lock male heads arranged on the end face of the casing facing the flange plate and penetrating the flange holes, and a quick-lock female head for locking and fixing the end of the quick-lock male head penetrating the flange hole. The rigid connection mode of the traditional "screw + gasket" is abandoned, and the buckle type cooperation of the quick-lock male head and the quick-lock female head is adopted, so that the screws do not need to be loosened / tightened one by one, and the gaskets do not need to be managed separately, which is especially suitable for emergency repair, on-site maintenance and the like, avoids the problems of part loss and confusion, significantly shortens the disassembly and assembly time, and improves the maintenance efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of motorcycle engines, and in particular to a high-efficiency range extender for motorcycle engines. Background Technology

[0002] The high-efficiency range extender for motorcycle engines is an auxiliary power device designed specifically for motorcycles. Its core function is to generate mechanical energy by burning gasoline in the internal combustion engine when the remaining charge of the main battery is lower than a set threshold or when the preset working conditions are met. This energy drives the generator to generate electricity, thereby providing targeted power to the main battery or directly supplying power to the drive motor. This fundamentally extends the motorcycle's range and avoids the predicament of losing power halfway.

[0003] A Chinese patent with authorization announcement number CN106837538B discloses an electric vehicle range extender, which includes a motorcycle engine body, a crankcase located below the engine body, a left crankshaft and a right crankshaft located inside the crankcase, a generator located at one end of the right crankshaft, and an air conditioning compressor connected to the crankcase located on the upper part of the crankcase. The air conditioning compressor is connected to the left crankshaft through a power transmission mechanism.

[0004] The generator and engine body of this electric vehicle range extender are fixedly assembled using a traditional rigid connection method of "screws + washers". Specifically, multiple sets of screws are evenly distributed around the circumference of the generator flange, and flat washers or spring washers are used to press the engine side mounting seat to complete the positioning.

[0005] The aforementioned fixing structure has significant drawbacks in practical applications: during disassembly and assembly, screws need to be loosened / tightened and washers need to be removed and placed one by one, and multiple sets of components need to be stored and managed separately to avoid problems such as lost washers and mixed screws. Disassembly and assembly are inconvenient, especially in emergency repairs or on-site maintenance scenarios, which seriously affects maintenance efficiency. Summary of the Invention

[0006] The problem to be solved by the present invention is to provide a high-efficiency range extender for motorcycle engines that addresses the above-mentioned shortcomings of the prior art, thereby solving the problem of inconvenient disassembly and assembly in the prior art.

[0007] The above-mentioned objective of this invention is achieved through the following technical solution: a high-efficiency range extender for a motorcycle engine, comprising an engine with a housing, a generator with a flange, and a quick-lock device. The flange has a plurality of flange holes along its thickness direction. The quick-lock device includes a plurality of quick-lock male heads disposed on the end face of the housing facing the flange and penetrating the flange holes, and a quick-lock female head for locking and fixing one end of the quick-lock male head penetrating the flange hole.

[0008] The invention is further configured such that: the quick-lock male connector includes a male connector housing disposed on the end face of the housing facing the flange; a central sliding groove is formed on the end face of the male connector housing away from the housing; a plurality of guide plate grooves are formed on the outer side wall of the male connector housing; a guide block hole communicating with the central sliding groove is formed on the bottom of the guide plate groove; a quick-lock sliding plate is slidably disposed in the guide plate groove; a quick-lock slider is disposed on the end face of the quick-lock sliding plate facing the central sliding groove and slidably engages with the guide block hole; the end face of the quick-lock slider away from the quick-lock sliding plate is inclined toward the quick-lock sliding plate; a central sliding column is slidably disposed in the central sliding groove; the central sliding column has a plurality of guide surfaces that abut against the inclined surface of the quick-lock slider away from the quick-lock sliding plate; the quick-lock female connector includes a female connector housing; a male connector insertion hole for inserting the male connector housing is formed on the end face of the female connector housing; a quick-lock locking hole for engaging with the quick-lock sliding plate is formed circumferentially on the hole wall of the male connector insertion hole.

[0009] The invention is further configured such that: a plurality of spring-loaded grooves are provided on the bottom of the guide plate groove; a tension spring is provided between the quick-lock sliding plate and the bottom of the spring-loaded groove; an inner hook is fixedly connected to the bottom of the spring-loaded groove; an outer hook is fixedly connected to the end face of the quick-lock sliding plate facing the spring-loaded groove; one end of the tension spring is hooked onto the inner hook, and the other end is hooked onto the outer hook; a return spring is provided between the bottom of the central sliding column and the central sliding groove; one end of the return spring abuts against the central sliding column, and the other end abuts against the bottom of the central sliding groove.

[0010] The present invention is further configured such that: a plurality of rotation limiting grooves are provided on the cylindrical surface of the central sliding column, and a plurality of countersunk screw holes aligned with the rotation limiting grooves are provided on the outer side wall of the male head housing, and a rotation limiting screw with an end slidingly engaged with the rotation limiting groove is threaded into the countersunk screw hole.

[0011] The present invention is further configured such that: a connecting shaft is coaxially provided at one end of the central sliding column away from the return spring, and a positioning ball is coaxially provided at one end of the connecting shaft away from the central sliding column; a ball-passing hole and a ball-clamping groove are sequentially opened on the bottom of the male connector hole; a ball-locking block for clamping the positioning ball is slidably arranged in the ball-clamping groove; a ball-embedding groove for engaging with the positioning ball is opened on the side wall of the ball-locking block facing the positioning ball; and a push block spring for pushing the ball-locking block to clamp the positioning ball is provided on the female connector housing.

[0012] The present invention is further configured such that: an inner slot is provided on the locking ball clamp for inserting one end of the push block spring, and an outer slot is provided on the female head housing for inserting the other end of the push block spring.

[0013] The invention is further configured such that: ball grooves are provided on the two opposite side walls of the ball clamping block, and steel balls are rolled in the ball grooves; and a ball sliding groove is provided on the groove wall of the ball clamping groove, with the length direction being the same as the sliding direction of the ball clamping block, and the ball sliding groove is in rolling cooperation with the steel balls.

[0014] The present invention is further configured such that: the outer wall of the female head housing opposite to the male head insertion hole is provided with a plurality of guide rod holes communicating with the ball clamping groove, and the ball locking block is provided with a lever that passes through the guide rod holes and slides in cooperation with the guide rod holes.

[0015] The present invention is further configured such that: a guide cylinder communicating with a ball clamping groove is provided on the outer wall of the female head shell away from the male head insertion hole; a guide groove is provided on the inner wall of the guide cylinder; a pressing plate is slidably provided on the guide groove; and a push rod for pushing the positioning ball is provided on the end face of the pressing plate facing the positioning ball.

[0016] The present invention is further configured such that: the positioning ball has a positioning hole for insertion into the push rod.

[0017] In summary, the beneficial technical effects of the present invention are as follows: (1) Significantly improves disassembly and assembly efficiency and adapts to emergency scenarios: Abandoning the traditional rigid connection method of "screw + washer", it adopts a snap-fit ​​connection of quick-lock male and quick-lock female heads. There is no need to loosen / tighten screws one by one or manage washers separately. The connection or separation of the engine and generator can be completed in just two steps: "press to assemble" and "lever to unlock". It is especially suitable for emergency repairs and on-site maintenance, avoiding the problems of lost or confused parts, significantly shortening the disassembly and assembly time, and improving maintenance efficiency.

[0018] (2) Double locking design: The quick lock plate of the quick lock male head and the quick lock hole of the quick lock female head form the first locking, and the locking ball clamp and the positioning ball form the second locking. The double structure works together to effectively prevent the connection from loosening due to vibration during the motorcycle's operation.

[0019] (3) Long service life: The steel balls on both sides of the locking ball clamp block form a rolling fit with the ball groove, which transforms the sliding friction of the locking ball clamp block into rolling friction, greatly reducing component wear; the sliding fit between the quick-lock slide plate and the guide plate groove, and between the central slide column and the central slide groove are all guaranteed by structural limiting (such as rotation limiting screws) to ensure accurate movement trajectory and avoid ineffective friction, further extending the overall service life of the quick-lock device. In addition, the tension spring, return spring, and push block spring are all fixed by hooks or slots, which are firmly assembled and have balanced force, making them less prone to fatigue damage.

[0020] (4) High convenience: The quick lock head is equipped with operating parts such as a pressing plate and a lever, and can be assembled and unlocked without professional tools. When assembling, only pressing the pressing plate is needed to drive the double locking structure to take effect. When unlocking, the lever can be moved to quickly release the lock. The operation logic is simple. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the high-efficiency range extender for motorcycle engines in this invention; Figure 2This is a partial exploded structural diagram of the high-efficiency range extender for motorcycle engines in this invention; Figure 3 This is a cross-sectional view of the quick-lock device in this invention; Figure 4 This is a cross-sectional view of the quick-lock male connector in this invention; Figure 5 This is a schematic diagram of the male head shell structure in this invention; Figure 6 This is a schematic diagram of the quick-lock male connector with the male connector housing removed in this invention; Figure 7 This is a cross-sectional view of the quick-lock female head in this invention; Figure 8 This is an exploded structural diagram of the quick-lock female head in this invention.

[0022] In the above attached diagrams: 1. Engine; 2. Housing; 3. Generator; 4. Flange; 5. Flange hole; 6. Quick-lock male connector; 7. Quick-lock female connector; 8. Male connector housing; 81. Sealing gasket; 9. Center slide groove; 10. Guide plate groove; 11. Guide block hole; 12. Spring mounting groove; 13. Quick-lock sliding plate; 14. Quick-lock slider; 15. Tension spring; 16. Inner hook; 17. Outer hook; 18. Center slide column; 19. Guide surface; 20. Return spring; 21. Connecting shaft; 22. Positioning ball; 2 21. Positioning hole; 23. Rotation limiting groove; 24. Countersunk screw hole; 25. Rotation limiting screw; 26. Female head housing; 27. Male head insertion hole; 28. Quick lock hole; 29. ​​Ball through hole; 30. Ball clamping groove; 31. Ball locking block; 32. Ball embedding groove; 33. Push block spring; 34. Inner slot; 35. Outer slot; 36. Ball groove; 37. Steel ball; 38. Ball bearing groove; 39. Guide rod hole; 40. Lever; 41. Guide cylinder; 42. Guide groove; 43. Press plate; 44. Push rod. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention clearer and easier to understand, the invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] like Figure 1 and 2 As shown, the present invention proposes a high-efficiency range extender for a motorcycle engine, comprising an engine 1 having a housing 2, a generator 3 having a flange 4, and a quick-lock device for connecting and fixing the engine 1 and the generator 3.

[0025] like Figure 2As shown, the quick-lock device includes a quick-lock male head 6 and a quick-lock female head 7. Several flange holes 5 are provided on the flange 4 along the thickness direction. Several quick-lock male heads 6 are evenly distributed around the end face of the housing 2 facing the flange 4. When the housing 2 of the engine 1 abuts against the flange 4 of the generator 3, the quick-lock male head 6 passes through the flange hole 5 of the flange 4. The quick-lock female head 7 is used to lock and fix one end of the quick-lock male head 6 that passes through the flange hole 5.

[0026] like Figure 3 and 4 As shown, the quick-lock male connector 6 includes a male connector housing 8, which is cylindrical and fixedly connected to the end face of the housing 2 facing the flange 4. The engine 1 and generator 3 are sealed by a rubber gasket 81 that is penetrated by the male connector housing 8. A circular central groove 9 is formed at the center of the end face of the male connector housing 8 away from the housing 2. Three guide plate grooves 10 are equidistantly formed on the outer circumference of the outer wall of the male connector housing 8. Each guide plate groove 10 has a guide block hole 11 at its bottom, communicating with the central groove 9. The guide block hole 11 is a rectangular hole. A pair of spring mounting grooves 12 are symmetrically formed at the bottom of each guide plate groove 10, symmetrically distributed on both sides of the guide block hole 11. The spring mounting grooves 12 are oblong grooves.

[0027] like Figure 4 and 5 As shown, a quick-lock slide plate 13 is slidably disposed in each guide plate groove 10. A quick-lock slider 14 that slides with the guide block hole 11 is fixedly connected to the end face of the quick-lock slide plate 13 facing the central slide groove 9. The end face of the quick-lock slider 14 away from the quick-lock slide plate 13 is inclined towards the quick-lock slide plate 13. A tension spring 15 is disposed between the quick-lock slide plate 13 and the bottom of the spring mounting groove 12. The tension spring 15 is used to pull the quick-lock slide plate 13 to move towards the center of the male head housing 8 to retract into the guide plate groove 10. An inner hook 16 is fixedly connected to the bottom of the spring mounting groove 12. An outer hook 17 is fixedly connected to the end face of the quick-lock slide plate 13 facing the spring mounting groove 12. One end of the tension spring 15 is hooked on the inner hook 16, and the other end is hooked on the outer hook 17.

[0028] like Figure 3 and 6As shown, a central sliding post 18 is slidably disposed in the central sliding groove 9. The central sliding post 18 has three equidistantly distributed guide surfaces 19, which correspond to three quick-lock sliders 14 respectively. The guide surfaces 19 are inclined towards the center of the central sliding post 18, and abut against the inclined surface of the quick-lock slider 14 away from the quick-lock slide plate 13. A return spring 20 is disposed between the central sliding post 18 and the bottom of the central sliding groove 9. One end of the return spring 20 abuts against the central sliding post 18, and the other end abuts against the bottom of the central sliding groove 9. A connecting shaft 21 is coaxially fixed to the end of the central sliding post 18 away from the return spring 20. A positioning ball 22 is coaxially fixed to the end of the connecting shaft 21 away from the central sliding post 18. A positioning hole 221 is opened on the end face of the positioning ball 22 away from the connecting shaft 21.

[0029] like Figure 3 and 6 As shown, three rotation limiting grooves 23 are equidistantly circumferentially formed on the cylindrical surface of the central sliding column 18. Three countersunk screw holes 24, which are aligned with the three rotation limiting grooves 23, are equidistantly circumferentially formed on the outer side wall of the male head housing 8. A rotation limiting screw 25 with its end slidingly engaged with the rotation limiting groove 23 is threaded into the countersunk screw hole 24. The rotation limiting screw 25 is used to limit the rotation of the central sliding column 18.

[0030] like Figure 3 and 8 As shown, the quick-lock female head 7 includes a female head housing 26, which is cylindrical and welded together from a pair of half-shells. A male head insertion hole 27 for inserting the male head housing 8 is provided on the end face of the female head housing 26. The male head insertion hole 27 is a circular hole and is split in half on the two half-shells. A quick-lock locking hole 28 for engaging with the quick-lock sliding plate 13 is provided circumferentially on the hole wall of the male head insertion hole 27. The quick-lock locking hole 28 has an annular cross-section and is split in half on the two half-shells.

[0031] like Figure 3 and 8 As shown, the bottom of the male connector 27 is provided with a ball-passing hole 29 and a ball-clamping groove 30. The ball-passing hole 29 is a circular hole through which the positioning ball 22 passes. A pair of ball-locking blocks 31 are slidably disposed in the ball-clamping groove 30. The side wall of the ball-locking blocks 31 facing the positioning ball 22 is provided with a ball-embedding groove 32 for engaging with the positioning ball 22. A push block spring 33 is provided on the female connector housing 26. The push block spring 33 is used to push the ball-locking blocks 31 to move closer to the center of the female connector housing 26 to clamp the positioning ball 22. The ball-locking blocks 31 are provided with an inner slot 34 for inserting one end of the push block spring 33, and the female connector housing 26 is provided with an outer slot 35 for inserting the other end of the push block spring 33.

[0032] like Figure 7 and 8As shown, hemispherical ball grooves 36 are provided on the opposite side walls of the ball clamping block 31, and steel balls 37 are rolled in the ball grooves 36. The groove wall of the ball clamping groove 30 is provided with ball grooves 38 located on both sides of the ball clamping block 31. The ball grooves 38 are waist-shaped grooves with the same length direction as the sliding direction of the ball clamping block 31. The ball grooves 38 and steel balls 37 roll in cooperation.

[0033] like Figure 3 and 8 As shown, a pair of guide rod holes 39 are symmetrically opened on the outer wall of the female head housing 26 opposite to the male head insertion hole 27. The guide rod holes 39 are connected to the ball clamping groove 30. A cylindrical lever 40 is fixedly connected to the ball clamping block 31. The lever 40 passes through the guide rod hole 39 and slides in cooperation with the guide rod hole 39. The lever 40 can provide a force point for the worker to move the ball clamping block 31.

[0034] like Figure 3 and 8 As shown, a hollow guide cylinder 41 is coaxially fixed to the outer wall of the female head housing 26 away from the male head insertion hole 27. The hollow part of the guide cylinder 41 is connected to the ball clamping groove 30. A guide groove 42 is provided on the inner wall of the guide cylinder 41. A circular plate-shaped pressing plate 43 is slidably arranged on the guide groove 42. A push rod 44 that is inserted into the positioning hole 221 is coaxially fixed to the end face of the pressing plate 43 facing the positioning ball 22.

[0035] In this embodiment, the detailed disassembly process of the quick lock is as follows: The worker moves the locking ball clamping block 31 away from the positioning ball 22 by using the lever 40 until the locking ball clamping block 31 releases the clamping and positioning of the positioning ball 22. The elastic force generated by the reset spring 20 pushes the central slide column 18 away from the reset spring 20. Since the guide surface 19 of the central slide column 18 abuts against the inclined surface of the quick lock slider 14 away from the quick lock slide plate 13, the tension spring 15 pulls the quick lock slide plate 13 to move closer to the center of the male head housing 8 to retract into the guide plate groove 10. At this time, the quick lock female head 7 can be removed to disassemble and separate the engine 1 and the generator 3.

[0036] The detailed installation process of the quick-lock device in this embodiment is as follows: S1, the worker attaches the housing 2 of the engine 1 to the flange 4 of the generator 3, the quick-lock male head 6 passes through the flange hole 5 of the flange 4, and then presses the pressing plate 43. The pressing plate 43 pushes the positioning ball 22, the connecting shaft 21 and the center slide column 18 towards the return spring 20 through the push rod 44 until the quick-lock hole 28 is aligned with the guide plate groove 10. During this process, the return spring 20 is compressed. Since the guide surface 19 of the center slide column 18 abuts against the inclined surface of the quick-lock slider 14 away from the quick-lock slide plate 13, the center slide column 18 will push the quick-lock slide plate 13 out of the guide plate groove 10 and into the quick-lock hole 28 through the quick-lock slider 14. S2, when the positioning ball 22 moves to the middle of the two locking ball clamping blocks 31, the push block spring 33 pushes the locking ball clamping block 31 to move closer to the center of the female head housing 26 and thus clamps the positioning ball 22. At this time, the central sliding column 18 is restricted from axial movement, and the quick-locking female head 7 remains locked and fixed at one end of the quick-locking male head 6 through the flange hole 5.

[0037] This high-efficiency range extender for motorcycle engines achieves multifaceted optimizations by employing an innovative quick-lock structure design, addressing the core shortcomings of existing technologies. The beneficial effects are as follows: 1. Significantly improves disassembly and assembly efficiency, adapting to emergency scenarios: Abandoning the traditional rigid connection method of "screws + washers," it adopts a snap-fit ​​connection between quick-lock male head 6 and quick-lock female head 7. There is no need to loosen / tighten screws one by one or manage washers individually; the connection or separation of engine 1 and generator 3 can be completed in just two steps: "press to assemble" and "release with lever 40." This is especially suitable for emergency repairs and on-site maintenance, avoiding the problems of lost or confused parts, significantly shortening disassembly and assembly time, and improving maintenance efficiency.

[0038] 2. Double locking design: The quick-locking slide plate 13 of the quick-locking male head 6 and the quick-locking locking hole 28 of the quick-locking female head 7 form the first locking, and the locking ball clamp 31 and the positioning ball 22 form the second locking. The double structure works together to effectively prevent the connection from loosening due to vibration during motorcycle operation.

[0039] 3. Long service life: The steel balls 37 on both sides of the locking ball clamp 31 form a rolling fit with the ball groove 38, converting the sliding friction of the locking ball clamp 31 into rolling friction, which greatly reduces component wear. The sliding fits between the quick-lock slide plate 13 and the guide plate groove 10, and between the central slide column 18 and the central slide groove 9 are all guaranteed by structural limiting (such as the rotation limiting screw 25) to ensure accurate movement trajectory and avoid ineffective friction, further extending the overall service life of the quick-lock device. In addition, the tension spring 15, the return spring 20, and the push block spring 33 are all fixed by hooks or slots, which are firmly assembled and have balanced force, making them less prone to fatigue damage.

[0040] 4. High convenience: The quick-lock female head 7 is equipped with operating components such as a pressing plate 43 and a lever 40, which can be assembled and unlocked without professional tools: during assembly, simply press the pressing plate 43 to drive the double locking structure to take effect, and when unlocking, flick the lever 40 to quickly release the lock. The operation logic is simple.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A high-efficiency range extender for motorcycle engines, characterized in that: It includes an engine (1) with a housing (2), a generator (3) with a flange (4), and a quick lock. The flange (4) has a plurality of flange holes (5) along the thickness direction. The quick lock includes a plurality of quick lock male heads (6) disposed on the end face of the housing (2) facing the flange (4) and passing through the flange holes (5), and a quick lock female head (7) for locking and fixing the quick lock male head (6) through the flange hole (5). The quick-lock male connector (6) includes a male connector housing (8) disposed on the end face of the housing (2) facing the flange (4). A central sliding groove (9) is provided on the end face of the male connector housing (8) away from the housing (2). Several guide plate grooves (10) are provided on the outer side wall of the male connector housing (8). A guide block hole (11) communicating with the central sliding groove (9) is provided on the bottom of the guide plate groove (10). A quick-lock sliding plate (13) is slidably disposed in the guide plate groove (10). A quick-lock slider (14) is provided on the end face of the quick-lock sliding plate (13) facing the central sliding groove (9) and slides with the guide block hole (11). The end face of the slider (14) away from the quick-lock slide plate (13) is inclined towards the quick-lock slide plate (13). A central slide column (18) is slidably arranged in the central slide groove (9). The central slide column (18) has several guide surfaces (19) that abut against the inclined surface of the quick-lock slider (14) away from the quick-lock slide plate (13). The quick-lock female head (7) includes a female head housing (26). A male head insertion hole (27) for inserting the male head housing (8) is opened on the end face of the female head housing (26). A quick-lock locking hole (28) for engaging with the quick-lock slide plate (13) is opened circumferentially on the hole wall of the male head insertion hole (27). The central sliding column (18) is coaxially provided with a connecting shaft (21) at one end away from the return spring (20). The connecting shaft (21) is coaxially provided with a positioning ball (22) at one end away from the central sliding column (18). The bottom of the male connector (27) is provided with a ball-passing hole (29) and a ball-clamping groove (30). A ball-locking block (31) for clamping the positioning ball (22) is slidably provided in the ball-clamping groove (30). A ball-embedding groove (32) for engaging with the positioning ball (22) is provided on the side wall of the ball-locking block (31) facing the positioning ball (22). A pusher spring (33) for pushing the ball-locking block (31) to clamp the positioning ball (22) is provided on the female connector housing (26).

2. The high-efficiency range extender for motorcycle engines according to claim 1, characterized in that: The bottom of the guide plate groove (10) is provided with several spring grooves (12). A tension spring (15) is provided between the quick-lock slide plate (13) and the bottom of the spring groove (12). An inner hook (16) is fixedly connected to the bottom of the spring groove (12). An outer hook (17) is fixedly connected to the end face of the quick-lock slide plate (13) facing the spring groove (12). One end of the tension spring (15) is hooked on the inner hook (16), and the other end is hooked on the outer hook (17). A return spring (20) is provided between the bottom of the central slide column (18) and the central slide groove (9). One end of the return spring (20) abuts against the central slide column (18), and the other end abuts against the bottom of the central slide groove (9).

3. The high-efficiency range extender for a motorcycle engine according to claim 1, characterized in that: The central sliding column (18) has several rotation limiting grooves (23) on its cylindrical surface. The outer side wall of the male head housing (8) has several countersunk screw holes (24) aligned with the rotation limiting grooves (23). The countersunk screw holes (24) are threaded with rotation limiting screws (25) whose ends slide in cooperation with the rotation limiting grooves (23).

4. The high-efficiency range extender for a motorcycle engine according to claim 1, characterized in that: The locking ball clamp (31) has an inner slot (34) for inserting one end of the push block spring (33), and the female head housing (26) has an outer slot (35) for inserting the other end of the push block spring (33).

5. A high-efficiency range extender for a motorcycle engine according to claim 1, characterized in that: The ball clamping block (31) has ball grooves (36) on its opposite side walls, and steel balls (37) are rolled in the ball grooves (36). The ball clamping groove (30) has ball grooves (38) on its groove wall with the same length direction as the sliding direction of the ball clamping block (31). The ball grooves (38) and steel balls (37) roll in cooperation.

6. A high-efficiency range extender for a motorcycle engine according to claim 1, characterized in that: The outer wall of the female head housing (26) opposite to the male head insertion hole (27) is provided with several guide rod holes (39) that communicate with the ball clamping groove (30). The ball locking block 2 (31) is provided with a lever (40) that passes through the guide rod hole (39) and slides with the guide rod hole (39).

7. A high-efficiency range extender for a motorcycle engine according to claim 1, characterized in that: The outer wall of the female head housing (26) opposite to the male head insertion hole (27) is provided with a guide cylinder (41) that communicates with the ball clamping groove (30). A guide groove (42) is provided on the inner wall of the guide cylinder (41). A pressing plate (43) is slidably provided on the guide groove (42). A push rod (44) for pushing the positioning ball (22) is provided on the end face of the pressing plate (43) facing the positioning ball (22).

8. A high-efficiency range extender for a motorcycle engine according to claim 7, characterized in that: The positioning ball (22) has a positioning hole (221) for insertion into the push rod (44).

Images