A turn knob assembly

Abstract

The utility model discloses a kind of steering handle assembly, including steering handle seat and steering handle component, steering handle seat has annular cavity, steering handle component includes handle core, handle core extends along first direction, one end of handle core has mounting portion, at least part of mounting portion is located in annular cavity, mounting portion can rotate relative to steering handle seat along the circumference of annular cavity, along first direction, mounting portion is limited in annular cavity, one of annular cavity and mounting portion has annular groove portion, the other of annular cavity and mounting portion has protruding portion, at least part of protruding portion is limited in annular groove portion, without additional setting connecting portion, and when the adapted handlebar pipe diameter changes, only need to re-mold handle core, without re-mold design to steering handle seat, effectively reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, and in particular to a throttle assembly. Background Technology

[0002] Thruster assemblies are an important component of vehicles such as electric vehicles (e.g., electric bicycles, electric scooters) and motorcycles, and they are usually adapted to the vehicle's handlebars.

[0003] The main structure of the throttle assembly typically includes a throttle seat 1' and a throttle assembly. Both the throttle seat 1' and the throttle assembly are hollow. The throttle assembly is rotatably connected to the throttle seat 1'. During installation, the handlebar passes through the throttle seat 1' and the throttle assembly. The throttle seat 1' is fixedly connected to the handlebar. During use, the user can control the speed of the vehicle by turning the throttle assembly relative to the handlebar.

[0004] For the throttle assembly, the throttle component is required to be compatible with the handlebar tube diameter. When the compatible handlebar tube diameter is different (for example, the handlebar tube diameter of adult electric bicycles is usually 22mm, and the handlebar tube diameter of children's electric bicycles is usually 18mm), the specifications of the throttle component (such as inner and outer diameters) will also be different.

[0005] In some existing technologies, see Figures 1-2 As shown, the throttle seat 1' is fixedly provided with a connecting part 2'. The throttle assembly includes a first handle core 3', a second handle core 4', and a handle sleeve (not shown in the figure). The first handle core 3' is rotatably sleeved on the outside of the connecting part 2'. The connecting part 2' and the first handle core 3' are provided with a limiting mechanism. The limiting mechanism can prevent the first handle core 3' from disengaging from the connecting part 2'. The second handle core 4' is located at the end of the first handle core 3' away from the throttle seat 1'. The handle sleeve covers the outside of the first handle core 3' and the second handle core 4'.

[0006] In the aforementioned prior art, not only is the structural design relatively complex, but also, because its connecting part 2' is adapted to the first handlebar core 3', when the diameter of the adapted handlebar tube is different, at least the connecting part 2' and the throttle assembly need to be re-molded, resulting in high production costs. Utility Model Content

[0007] The purpose of this utility model is to address the defects and shortcomings of the existing technology by providing a throttle assembly with a simple and reasonable structure and convenient operation. It does not require additional connecting parts. When the diameter of the handlebar tube to be adapted changes, only the handlebar core needs to be remolded, without the need to redesign the throttle seat, which effectively reduces production costs.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: The present invention discloses a throttle assembly, comprising a throttle seat and a throttle assembly. The throttle seat has an annular cavity, and the throttle assembly includes a handle core extending along a first direction. One end of the handle core has a mounting portion, at least a portion of which is located within the annular cavity. The mounting portion is rotatable relative to the throttle seat along the circumference of the annular cavity. Along the first direction, the mounting portion is confined within the annular cavity. One of the annular cavity and the mounting portion has an annular groove, and the other of the annular cavity and the mounting portion has a protrusion, at least a portion of which is confined within the annular groove.

[0009] Furthermore, the mounting portion has a main body and an annular groove, at least a portion of the main body is located within the annular cavity, the main body and the peripheral wall of the annular cavity are fitted together, the annular groove is disposed on the outer peripheral wall of the main body, and the annular cavity has a protrusion disposed on the peripheral wall of the annular cavity.

[0010] Furthermore, the annular groove has a notch on its sidewall, and the protrusion can enter and exit the annular groove through the notch.

[0011] Furthermore, the notch portion includes a first notch and a second notch, the first notch and the second notch are arranged at circumferential intervals along the annular groove portion, the widths of the first notch and the second notch are different, the protrusion portion includes a first protrusion portion and a second protrusion portion, the first protrusion portion is adapted to the first notch portion, and the second protrusion portion is adapted to the second notch portion.

[0012] Furthermore, a side cover plate is provided at the end of the throttle seat away from the handlebar core. The side cover plate is fixedly connected to the throttle seat. The side cover plate is provided with a limiting post. The limiting post extends along a first direction. The throttle seat has a clearance hole. The limiting post passes through the clearance hole and extends into the annular cavity. The mounting part has a first limiting part. Along the circumference of the annular cavity, the first limiting part can be limited to the limiting post, so that the protrusion and the notch remain misaligned.

[0013] Furthermore, a second limiting portion is provided on the peripheral sidewall of the annular cavity, and the first limiting portion is located at the second limiting portion along the circumferential direction of the annular cavity.

[0014] Furthermore, the second limiting part includes two limiting protrusions, which are arranged at intervals along the circumference of the annular cavity. The limiting post is located between the two limiting protrusions. Along the circumference of the annular cavity, the first limiting part is limited between the limiting post and one of the limiting protrusions.

[0015] Furthermore, the first limiting part protrudes from the mounting part along the first direction, and the outer wall of the first limiting part is provided with a mounting groove, the mounting groove accommodating a magnetic component, and the throttle seat is provided with a magnetic induction component corresponding to and cooperating with the magnetic component.

[0016] Furthermore, the throttle seat includes a first part and a second part, the first part and the second part are integrally connected, the second part is located on the outer periphery of the first part, the annular cavity is located between the second part and the first part, the first part has a first channel, the throttle core has a second channel opposite to the first channel, and at least a portion of the first part is located within the mounting portion.

[0017] Furthermore, the mounting part has a connecting channel, which is coaxial with and connected to the second channel. The first part is inserted into the connecting channel, and a limiting step is provided between the connecting channel and the second channel. Along the first direction, the first part is limited to the limiting step.

[0018] The beneficial effects of this utility model are as follows: Compared with the throttle assembly shown in the prior art, the throttle assembly of this utility model does not require additional connecting parts, resulting in a simpler structure. Furthermore, when the diameter of the handlebar tube to be adapted changes, only the handlebar core needs to be re-molded, without requiring a redesign of the throttle seat, effectively reducing production costs. In traditional throttle designs, if different handlebar diameters need to be adapted, the molds for the handlebar core and throttle seat must be redesigned, resulting in high costs and low mold utilization. The throttle assembly of this utility model allows for a universal throttle seat; only the dimensional parameters of the handlebar core tube need to be adjusted for different tube diameter requirements, effectively reducing mold costs and production cycle. Attached Figure Description

[0019] Figure 1 This is a cross-sectional structural diagram of a transfer assembly in the existing technology; Figure 2 This is a schematic diagram of the exploded structure of the existing transfer assembly; Figure 3 This is a schematic diagram of the overall structure of this utility model; Figure 4 This is a cross-sectional structural schematic diagram of the present invention; Figure 5 yes Figure 4 Enlarged structural diagram at point A; Figure 6 This is an exploded structural diagram of the present invention; Figure 7 This is a schematic diagram of the throttle seat; Figure 8 This is a cross-sectional structural diagram of the connection between the side cover plate and the throttle seat; Figure 9 This is a schematic diagram of the structure when the throttle seat is separated from the side cover.

[0020] Figures 1-9 middle: 1' Throttle seat; 2' Connecting part; 3' First throttle stem; 4' Second throttle stem; 1. Throttle seat; 11. Annular cavity; 111. First protrusion; 112. Second protrusion; 12. Clearance hole; 13. Magnetic induction components; 14. Part One; 141. First Channel; 15. Part Two; 2. Take the core; 21. Second Channel; 3. Installation Department; 31. Annular groove; 32. Main body; 331. First gap; 332. Second gap; 34. First limiting part; 341. Mounting groove; 3411. Magnetic component; 35. Connecting channels; 36. Limiting step; 4. Side cover plate; 41. Limiting post; 51. First limiting protrusion; 52. Second limiting protrusion; 6. Put the cover on; 7. Fastening ring; 71. Fastener; 72. Expansion joint. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figures 1-9The illustrated throttle assembly includes a throttle seat 1 and a throttle assembly. Both the throttle seat 1 and the throttle assembly are hollow. The throttle seat 1 has an annular cavity 11. The throttle assembly includes a handle core 2 and a handle sleeve 6. The handle sleeve 6 is fitted onto the outside of the handle core 2. Specifically, the handle sleeve 6 is formed onto the outside of the handle core 2 through a secondary injection molding process to ensure a tight fit between the handle sleeve 6 and the handle core 2. The handle sleeve 6 is provided with several anti-slip protrusions to increase the friction between the hand and the handle sleeve 6 and prevent slippage. The handle core 2 extends along a first direction. In this embodiment, the first direction is the axial direction of the handle core 2. One end of the handle core 2 has a mounting part 3. In this example, the handle core 2 and the mounting part 3 are connected... The mounting portion 3 is integrally formed by injection molding, with at least a portion located within the annular cavity 11. The mounting portion 3 is rotatable relative to the throttle seat 1 along the circumference of the annular cavity 11. Along the first direction, the mounting portion 3 is confined within the annular cavity 11. One of the annular cavity 11 and the mounting portion 3 has an annular groove 31, and the other has a protrusion. At least a portion of the protrusion is confined within the annular groove 31, serving to prevent detachment. Preferably, in this embodiment, the groove sidewall of the annular groove 31 has a notch, allowing the protrusion to enter and exit the annular groove 31 through the notch. In this embodiment, when the throttle core 2 is screwed to the maximum throttle position, the notch aligns with the protrusion.

[0023] The throttle assembly described in this utility model, compared to the throttle assembly shown in the prior art, does not require an additional connecting part 2', resulting in a simpler structure. Furthermore, when the diameter of the handlebar tube to be adapted changes, only the handlebar core 2 needs to be re-molded, without requiring a redesign of the throttle seat 1, effectively reducing production costs. In traditional throttle designs, if different handlebar diameters need to be adapted, the molds for the handlebar core 2 and throttle seat 1 must be redesigned, leading to higher costs and lower mold utilization. The throttle assembly described in this utility model allows for a universal throttle seat 1; only the dimensional parameters of the handlebar core 2's core tube need to be adjusted for different tube diameter requirements. During injection molding, the mandrel acts as the "inner mold" of the handlebar core 2's core tube. After the molten material covers the mandrel and cools and solidifies, the mandrel is removed, forming the inner wall structure of the handlebar core 2's core tube that matches the mandrel's parameters. In this embodiment, both the throttle seat 1 and the mounting part 3 are configured to be compatible with the handlebar tube diameter of an adult electric vehicle. The core tube of the handlebar 2 can be configured to be compatible with the handlebar tube diameter of an adult electric vehicle, or it can be configured to be compatible with the handlebar tube diameter of a child electric vehicle. When it is necessary to replace the throttle used in an adult electric vehicle with the throttle used in a child electric vehicle, there is no need to re-mold the throttle seat 1. During injection molding, the core tubes of the handlebar 2 with different inner diameters can be formed by adjusting the mandrel parameters to adapt to handlebars with different tube diameters, effectively reducing mold costs and production cycle.

[0024] In this embodiment, the handlebar diameter of the adult electric vehicle is set to 22mm; the handlebar of the child electric vehicle is a variable diameter design. Specifically, the diameter of the part of the child electric vehicle handlebar that is adapted to the throttle seat 1 and the mounting part 3 is set to 22mm, while the diameter of the part of the child electric vehicle handlebar that is adapted to the handlebar core 2 is set to 18mm.

[0025] Preferably, in this embodiment, the reference Figures 4-5 The mounting part 3 has a main body part 32 and an annular groove part 31. At least a portion of the main body part 32 is located inside the annular cavity 11. The main body part 32 and the peripheral sidewall of the annular cavity 11 are engaged. The annular groove part 31 is disposed on the outer peripheral wall of the main body part 32. The annular cavity 11 has a protrusion, which is disposed on the peripheral sidewall of the annular cavity 11.

[0026] Of course, in other embodiments, the annular cavity 11 may have an annular groove 31 and the mounting portion 3 may have a protrusion.

[0027] A torsion spring (not shown in the figure) is also provided between the handle core 2 and the throttle seat 1. The torsion spring is located in the annular cavity 11. One end of the torsion spring acts on the throttle seat 1, and the other end of the torsion spring acts on the handle core 2. The torsion spring is used to reset the handle core 2. In the natural state, the torsion spring is in a relaxed state and the handle core 2 is in the initial position. When the handle core 2 is rotated, the torsion spring stores force. After being released, the torsion spring releases its elastic force to drive the handle core 2 to automatically reset.

[0028] refer to Figure 6 The throttle seat 1 is also provided with a fastening ring 7, which is sleeved on the outside of the handlebar. The throttle seat 1 is provided with a fastener 71 for tightening the fastening ring 7. The fastener 71 locks the fastening ring 7 to the handlebar. The fastening ring 7 is provided with a contraction slot 72. The fastener 71 passes through the fastening ring 7. In this embodiment, the fastener 71 is a locking screw. By tightening the locking screw, the contraction slot 72 is tightened, and the throttle assembly is fastened to the handlebar by the fastening ring 7.

[0029] Preferably, in this embodiment, the reference Figure 6 The notch portion includes a first notch 331 and a second notch 332, which are arranged at intervals along the circumference of the annular groove portion 31. The widths of the first notch 331 and the second notch 332 are different. This foolproof design ensures the uniqueness and correctness of the assembly. The protrusion portion includes a first protrusion 111 and a second protrusion 112, which are adapted to the first notch 331 and the second protrusion 112 are adapted to the second notch 332.

[0030] Preferably, in this embodiment, the reference Figure 6 , Figure 8 and Figure 9 The throttle seat 1 has a side cover plate 4 at the end away from the handlebar core 2. The side cover plate 4 is fixedly connected to the throttle seat 1. In this embodiment, the side cover plate 4 and the throttle seat 1 are fixedly connected by screws to ensure a stable and reliable connection between the two. The side cover plate 4 is provided with a limiting post 41, which extends along a first direction. The throttle seat 1 has a clearance hole 12. The limiting post 41 passes through the clearance hole 12 and extends into the annular cavity 11. The mounting part 3 has a first limiting part 34. Along the circumference of the annular cavity 11, the first limiting part 34 can limit the limiting post 41, so that the protrusion and the notch are misaligned, preventing the protrusion from undesirably coming out of the notch and affecting the use.

[0031] Preferably, in this embodiment, the reference Figure 8 The annular cavity 11 has a second limiting part on its peripheral sidewall. Along the circumference of the annular cavity 11, the first limiting part 34 is located at the second limiting part. When the core 2 is rotated, the first limiting part 34 abuts against the second limiting part to limit the rotation angle of the core 2.

[0032] Preferably, in this embodiment, the reference Figure 8 The second limiting part includes two limiting protrusions, defined as a first limiting protrusion 51 and a second limiting protrusion 52, respectively. The first limiting protrusion 51 and the second limiting protrusion are arranged at intervals along the circumference of the annular cavity 11. The limiting post 41 is located between the first limiting protrusion 51 and the second limiting protrusion 52 along the circumference of the annular cavity 11. In this embodiment, the first limiting part 34 is limited between the limiting post 41 and the second limiting protrusion 52. Of course, in other embodiments, the first limiting part 34 can also be limited between the limiting post 41 and the first limiting protrusion 51.

[0033] Preferably, in this embodiment, the reference Figure 6 The first limiting part 34 protrudes from the mounting part 3 along a first direction. The outer wall of the first limiting part 34 is provided with a mounting groove 341, which accommodates a magnetic component 3411. The throttle seat 1 is provided with a magnetic induction component 13 that corresponds to and cooperates with the magnetic component 3411. Specifically, in this embodiment, the magnetic component 3411 is a magnet, and the magnetic induction component 13 is a Hall effect sensor. When the handlebar 2 rotates, the magnet rotates synchronously, causing a change in the relative angle between the magnet and the Hall effect sensor, thereby causing the Hall effect sensor to output different voltage signals to achieve speed regulation.

[0034] Preferably, in this embodiment, the reference Figures 4-5The throttle seat 1 includes a first part 14 and a second part 15, which are integrally connected. Specifically, in this embodiment, the first part 14 and the second part 15 are integrally injection molded. The second part 15 is located on the outer periphery of the first part 14. The annular cavity 11 is located between the second part 15 and the first part 14. The first part 14 has a first channel 141 through which the handlebar passes. The handlebar core 2 has a second channel 21 opposite to the first channel 141. At least a portion of the first part 14 is located within the mounting portion 3.

[0035] Preferably, in this embodiment, the reference Figure 5 The mounting part 3 has a connecting channel 35 through which the handlebar passes. The connecting channel 35 is coaxial with and connected to the second channel 21. The first part 14 is inserted into the connecting channel 35. There is a limiting step 36 between the connecting channel 35 and the second channel 21. Along the first direction, the first part 14 is limited by the limiting step 36, which effectively plays the role of axial limiting.

[0036] The installation process of this utility model is as follows: After installing the torsion spring, screw the core 2 to the maximum throttle end, so that the notch enters the annular groove 31 through the protrusion. At this time, the first limiting part 34 abuts against one of the limiting protrusions. Then, insert the limiting post 41 of the side cover plate 4 into the clearance hole 12 of the throttle seat 1, so that the limiting post 41 extends into the annular cavity 11. Finally, fix the side cover plate 4 to the throttle seat 1 with screws. After releasing the core 2, the core 2 returns to its original position under the action of the torsion spring. Along the circumference of the annular cavity 11, the first limiting part 34 can be limited to the limiting post 41, so that the protrusion and the notch are misaligned, preventing the protrusion from undesirably coming out of the notch and affecting the use.

[0037] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A throttle assembly, comprising a throttle base (1) and a throttle component, characterized in that: The throttle seat (1) has an annular cavity (11), and the throttle assembly includes a handle core (2) extending in a first direction. One end of the handle core (2) has a mounting portion (3), at least a portion of which is located within the annular cavity (11). The mounting portion (3) is rotatable relative to the throttle seat (1) along the circumference of the annular cavity (11). Along the first direction, the mounting portion (3) is confined within the annular cavity (11). One of the annular cavity (11) and the mounting portion (3) has an annular groove (31), and the other of the annular cavity (11) and the mounting portion (3) has a protrusion, at least a portion of which is confined within the annular groove (31).

2. The throttle assembly according to claim 1, characterized in that: The mounting part (3) has a main body (32) and an annular groove (31). At least a portion of the main body (32) is located in the annular cavity (11). The main body (32) and the peripheral sidewall of the annular cavity (11) are engaged. The annular groove (31) is disposed on the outer peripheral wall of the main body (32). The annular cavity (11) has a protrusion disposed on the peripheral sidewall of the annular cavity (11).

3. The throttle assembly according to claim 1, characterized in that: The annular groove (31) has a notch on its sidewall, and the protrusion can enter and exit the annular groove (31) through the notch.

4. A throttle assembly according to claim 3, characterized in that: The notch portion includes a first notch (331) and a second notch (332), the first notch (331) and the second notch (332) are arranged at intervals along the circumference of the annular groove portion (31), the widths of the first notch (331) and the second notch (332) are different, the protrusion portion includes a first protrusion portion (111) and a second protrusion portion (112), the first protrusion portion (111) is adapted to the first notch (331), and the second protrusion portion (112) is adapted to the second notch (332).

5. A throttle assembly according to claim 3, characterized in that: A side cover plate (4) is provided at the end of the throttle seat (1) away from the handle core (2). The side cover plate (4) is fixedly connected to the throttle seat (1). The side cover plate (4) is provided with a limiting post (41). The limiting post (41) extends along a first direction. The throttle seat (1) has a clearance hole (12). The limiting post (41) passes through the clearance hole (12) and extends into the annular cavity (11). The mounting part (3) has a first limiting part (34). Along the circumference of the annular cavity (11), the first limiting part (34) can limit the limiting post (41) so that the protrusion and the notch are misaligned.

6. A throttle assembly according to claim 5, characterized in that: The annular cavity (11) has a second limiting part on its peripheral sidewall. Along the circumference of the annular cavity (11), the first limiting part (34) is limited to the second limiting part.

7. A throttle assembly according to claim 6, characterized in that: The second limiting part includes two limiting protrusions, which are arranged at intervals along the circumference of the annular cavity (11). The limiting post (41) is located between the two limiting protrusions. Along the circumference of the annular cavity (11), the first limiting part (34) is limited between the limiting post (41) and one of the limiting protrusions.

8. A throttle assembly according to claim 5, characterized in that: The first limiting part (34) protrudes from the mounting part (3) in the first direction. The outer wall of the first limiting part (34) is provided with a mounting groove (341). The mounting groove (341) accommodates a magnetic component (3411). The throttle seat (1) is provided with a magnetic induction component (13) that corresponds to and cooperates with the magnetic component (3411).

9. A throttle assembly according to claim 1, characterized in that: The throttle seat (1) includes a first part (14) and a second part (15), the first part (14) and the second part (15) are integrally connected, the second part (15) is located on the outer periphery of the first part (14), the annular cavity (11) is located between the second part (15) and the first part (14), the first part (14) has a first channel (141), the handle core (2) has a second channel (21) opposite to the first channel (141), and at least a portion of the first part (14) is located in the mounting part (3).

10. A throttle assembly according to claim 9, characterized in that: The mounting part (3) has a connecting channel (35), which is coaxial with and connected to the second channel (21). The first part (14) is inserted into the connecting channel (35). There is a limiting step (36) between the connecting channel (35) and the second channel (21). Along the first direction, the first part (14) is limited to the limiting step (36).

Images