Lockable handlebar

Abstract

The application discloses a lockable handlebar and relates to the technical field of handlebars of walking aids, which is characterized in that the technical scheme comprises a locking handlebar mechanism and a core frame mechanism, the locking handlebar mechanism is sleeved on the core frame mechanism, the core frame mechanism comprises a handlebar fixing rod, a plurality of track fixing columns, a fixing frame and a handlebar shell, the fixing frame clamping groove is fixedly installed on the handlebar shell, the end of the handlebar fixing rod is fixedly connected with the fixing frame clamping groove, a plurality of track fixing columns are arranged along the length direction of the handlebar, the number of each group of track fixing columns is multiple, and the plurality of fixing columns are distributed along the arc length of the side wall of the handlebar fixing rod. When the locking handlebar mechanism is locked, the handlebar can be accurately and appropriately applied to a position, and the isolation mode of the handlebar from a motor by shielding an induced current is no longer used, so that the circuit is simplified. When the handlebar is operated, the hand does not need to be separated from the handlebar, safety is improved, and the overall stability of the handlebar is improved.

Description

Technical Field

[0001] This invention relates to the field of bicycle handlebar technology, and more specifically, to a lockable handlebar. Background Technology

[0002] Traditional throttles use adjustable potentiometers, which are rings with contact friction. Over time, these rings wear down and are prone to poor contact and damage. This type of throttle is no longer used on electric vehicles.

[0003] The throttle of a walking aid uses a magnet and a linear Hall effect sensor to mimic the linear signal of a potentiometer. The Hall effect sensor is typically a 49E type. When the magnetic field applied to the Hall effect sensor changes, the sensor outputs a continuously adjustable voltage signal. This voltage signal is directly sent to the controller to change the motor speed, thus changing the vehicle's speed. Existing walking aid throttles, such as... Figure 1 As shown, the magnet is usually mounted on a ring at the end of the throttle. When the throttle rotates, the magnet rotates in the same direction. There are currently two types of magnets: one is a single arc-shaped type, where the magnetic field strength on the magnet surface varies at different positions. The sensing surface of the Hall element is a small distance away from the magnet. When the position of the magnet changes, the magnetic field strength applied to the Hall element changes accordingly, and the magnitude of the Hall output voltage changes.

[0004] Another method involves installing a small magnet at each end of a segment of the circular arc of a ring, positioning the Hall element between the two magnets. The magnetic field strength varies depending on the position of the two magnets, and the magnetic field strength applied to the Hall element also changes when the throttle is turned, similar to the method with a single arc magnet. However, because the magnetic field strength between the two magnets is affected by factors such as the installation angle and material deformation, the overall linearity is not as good as that of a single arc magnet. Its advantage is its lower price.

[0005] Currently, the handlebar locking function of electric bicycles is achieved by shielding the induced current to isolate the handlebars from the motor, which increases the complexity of the circuit. Furthermore, it requires removing the hands from the handlebars and pressing a button to activate the locking function, and the handlebars will still rotate within the frame after the power is cut off, which can easily lead to danger. Summary of the Invention

[0006] The purpose of this invention is to provide a lockable handlebar that solves the technical problems mentioned in the background art.

[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a lockable handlebar, comprising a locking handlebar mechanism and a core frame mechanism, wherein the locking handlebar mechanism is sleeved on the core frame mechanism; the core frame mechanism comprises a handlebar fixing rod, multiple sets of rail fixing posts, a fixing frame, and a handlebar shell; the fixing frame is fixedly installed on the handlebar shell via a slot, and the end of the handlebar fixing rod is fixedly connected to the fixing frame slot; multiple sets of rail fixing posts are arranged along the length direction of the handlebar, each set containing multiple rail fixing posts, and the multiple fixing posts are distributed with equal arc length along the side wall of the handlebar fixing rod; adjacent sets of rail fixing posts are rotated and intersected.

[0008] The locking handlebar mechanism is a built-in spiral multirail handlebar. The inner sidewall of the built-in spiral multirail handlebar is provided with multiple rails that respectively fit with multiple sets of rail fixing posts. The built-in spiral multirail handlebar is sleeved on the handlebar fixing rod, and the rail fixing posts are located inside the rails of the built-in spiral multirail handlebar.

[0009] The handlebar housing is equipped with a Hall element sensing mechanism, and the sensing end of the Hall element sensing mechanism is equipped with a reset mechanism. The reset mechanism is sleeved on the locking handlebar mechanism and the frame mechanism. The reset mechanism resets the built-in spiral multirail handlebar after it rotates. The Hall element sensing mechanism is used to sense the resistance value generated by the rotation of the built-in spiral multirail handlebar and control the motor speed.

[0010] The invention is further configured such that: the reset mechanism includes a fixed frame, a locking reset spring, a reset spring fixing plate, a magnet fixing frame cover, and a Hall element reset spring; the fixed frame is detachably connected to the fixed frame slot, and the fixed frame is rotatably sleeved on the built-in spiral multirail handlebar; spring fixing grooves are provided inside the fixed frame and the reset spring fixing plate; the locking reset spring is fixed through the spring fixing groove of the fixed frame, and the locking reset spring and the Hall element reset spring are fixedly connected through the spring fixing groove of the reset spring fixing plate; the built-in spiral multirail handlebar is simultaneously fixed and adjusted on the locking reset spring, the reset spring fixing plate, and the Hall element reset spring; the sensing end of the Hall element sensing mechanism is located on the end of the fixed frame, and the magnet fixing frame cover is detachably connected to the fixed frame, the magnet fixing frame cover being used to fix the sensing end of the Hall element sensing mechanism.

[0011] The present invention is further configured such that: the Hall element sensing mechanism includes a Hall element, a Hall element storage box, a Hall element storage box cover, a controller, and a magnet; the magnet is mounted on the end of a fixed frame, the magnet fixed frame cover is closed on the magnet, the Hall element storage box is fixedly connected to the magnet fixed frame cover, the Hall element is detachably disposed in the Hall element storage box, the Hall element storage box cover is detachably connected to the Hall element storage box, and the Hall element is electrically connected to the controller.

[0012] In summary, the beneficial effects of the present invention are: when locking, the handlebar locking mechanism can accurately apply to the appropriate position, eliminating the need to use shielded induced current to isolate the handlebar from the motor, thus simplifying the circuitry; during operation, the hands do not need to leave the handlebar, increasing safety, and also improving the overall stability of the handlebar. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the existing tachometer handlebar in the background art of this invention;

[0014] Figure 2 This is a schematic diagram of a lockable handlebar structure in an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the Hall element sensing mechanism in an embodiment of the present invention;

[0016] Figure 4 This is a schematic diagram of the structure between the magnet and the Hall element storage box in an embodiment of the present invention;

[0017] Figure 5 This is a schematic diagram of the core frame mechanism in an embodiment of the present invention;

[0018] Figure 6 This is a schematic diagram of the locking handlebar mechanism in an embodiment of the present invention.

[0019] In the diagram: 1. Hall element sensing mechanism; 2. Reset mechanism; 3. Handlebar locking mechanism; 4. Core frame mechanism; 101. Hall element; 102. Hall element storage box; 103. Hall element storage box cover; 104. Sensing circuit; 105. Controller; 106. Magnet; 201. Fixing frame; 202. Magnet fixing frame cover; 203. Reset spring fixing plate; 204. Locking reset spring; 205. Hall element reset spring; 301. Built-in spiral multi-rail handlebar; 401. Handlebar fixing rod; 402. Rail fixing post; 4021. Rail fixing post a; 4022. Rail fixing post b; 4023. Rail fixing post c; 403. Fixing frame slot; 404. Handlebar shell. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 2-6 The present invention will be described in further detail below.

[0021] Example: A lockable handlebar, such as Figures 2 to 6 As shown, it includes a Hall element 101 sensing mechanism 1, a reset mechanism 2, a handlebar locking mechanism 3, and a core frame mechanism 4;

[0022] The Hall element sensing mechanism 1 includes a Hall element 101, a Hall element storage box 102, a Hall element storage box cover 103, three sensing lines 104, a controller 105, and a magnet 106. The three sensing lines 104 are flexible wires and are respectively a power input line, a signal output line, and a ground line. The controller 105 and the Hall element 101 are electrically connected through the three sensing lines 104. The Hall element 101 is detachably housed in the Hall element storage box 102, which has an opening at the top, and the opening is detachably connected to the Hall element storage box cover 103. Figure 4 and Figure 5 As shown, the Hall element storage box 102 is fixedly installed on the side wall of the magnet fixing frame cover 202.

[0023] The reset mechanism 2 includes a fixed frame 201, a magnet fixed frame cover 202, a reset spring fixing plate 203, a locking reset spring 204, and a Hall element reset spring 205; as shown Figure 5 and Figure 6 As shown, the fixed frame 201 is a frustum-shaped structure with different diameters at both ends. The magnet 106 is detachably connected to the end of the fixed frame 201 with the larger cross-section, and is covered and fixed by the magnet fixed frame cover 202. The fixed frame 201 has a spring fixing groove inside, and the locking reset spring 204 is fixedly connected through the spring fixing groove of the fixed frame 201. The reset spring fixing plate 203 also has a spring fixing groove inside. The locking reset spring 204 and the Hall element reset spring 205 are fixedly connected through the spring fixing groove of the reset spring fixing plate 203. The helical directions of the locking reset spring 204 and the Hall element reset spring 205 are opposite.

[0024] The core frame mechanism 4 includes a handlebar fixing rod 401, three sets of rail fixing posts 402, a fixing frame slot 403, and a handlebar housing 404; the three sets of rail fixing posts 402 are three rail fixing posts a4021, three rail fixing posts b4022, and three rail fixing posts c4023; as shown Figure 5 and 6As shown, the angle between the axis connecting the three identical track fixing posts 402 and the handlebar fixing rod 401 is 120°; the rotation angles of track fixing posts a4021, b4022 and c4023 differ by 40° from each other; the fixing frame slot 403 is detachably connected to the handlebar housing 404; the Hall element 101, Hall element storage box 102, Hall element storage box cover 103, sensing circuit 104, controller 105 and other circuits are all located inside the handlebar housing 404.

[0025] The built-in spiral multirail handlebar 301 is a closed structure, with three rails inside that fit with three sets of rail fixing posts 402. The built-in spiral multirail handlebar 301 has a lubricating fluid groove inside the rails.

[0026] Working principle: When the vehicle is in normal operation, that is, when the power of the walking aid is turned on, the positive and negative power supply pins of the Hall element 101 will receive a 5V working power supply provided by the controller 105. When the wrist is pressed down and the throttle is turned, the position of the magnet fixed inside will change, the magnetic field will change from weak to strong, and the Hall output terminal will output a voltage of 1-4.2V.

[0027] The voltage supplied to the operational amplifier of the controller 105 is compared with the set value. Based on the comparison result, a voltage value is output to drive the field-effect transistor. The field-effect transistor is connected to the power supply. When the field-effect transistor is turned on, the output voltage drives the electric vehicle motor to rotate.

[0028] When the scooter's speed control handle is turned, the fixed frame 201 transmits the torque of the built-in spiral multirail handlebar 301 through the locking return spring 204 and the return spring fixing plate 203, causing it to rotate. The potentiometer in the fixed frame 201 generates different resistance values, allowing the controller 105 to provide a corresponding voltage based on the resistance value generated by the handlebar to control the scooter motor's speed. If the rotation angle is too large, the change in resistance value becomes larger, resulting in a faster change in the scooter's speed.

[0029] When the handle is released, i.e., the wrist is lifted and the throttle is rotated, the magnet assembly is reset under the action of the Hall element reset spring 205, the magnetic field force weakens, the Hall output voltage drops below 1V, the field effect transistor is cut off and there is no output voltage, and the motor stops.

[0030] When locking the handlebars is required, the magnet assembly first resets under the action of the Hall element return spring 205, and the built-in spiral multirail handlebar 301 returns to its initial position. Lifting the built-in spiral multirail handlebar 301 until it clicks shut, then releasing it, the locking return spring 204 moves the built-in spiral multirail handlebar 301 into the fixed frame slot 403 through its engagement with the rail fixing post 402. The handlebars are thus locked. It is worth noting that at this time, the rotation of the spiral three-rail rotating handlebar is affected by the fixed frame slot 403 (see...). Figure 5 The unidirectional rotational property of the magnet 106 does not cause it to rotate and thus produce the Hall effect.

[0031] When the handlebars need to be changed from the locked state to the normal driving state, lift the built-in spiral multirail handlebar 301 and apply slight force to its end, then release the built-in spiral multirail handlebar 301 to return it to the initial position.

[0032] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A lockable handlebar, characterized in that: The system includes a handlebar locking mechanism (3) and a core frame mechanism (4), wherein the handlebar locking mechanism (3) is sleeved on the core frame mechanism (4); the core frame mechanism (4) includes a handlebar fixing rod (401), multiple sets of rail fixing posts (402), a fixing frame slot (403), and a handlebar shell (404); the fixing frame slot (403) is fixedly installed on the handlebar shell (404), and the end of the handlebar fixing rod (401) is fixedly connected to the fixing frame slot (403). The three sets of track fixing posts (402) are arranged along the length of the handlebars. Each set of track fixing posts (402) consists of three posts, and the three posts are distributed along the side wall of the handlebar fixing rod (401) with equal arc lengths. The angle between the line connecting the axis of the three identical track fixing posts (402) and the handlebar fixing rod (401) is 120°. The track fixing posts (402) of adjacent sets are arranged in a rotatable and intersecting manner, and the rotation angles of the three sets of track fixing posts (402) differ by 40° from each other. The locking handlebar mechanism (3) is a built-in spiral multirail handlebar (301). The inner sidewall of the built-in spiral multirail handlebar (301) is provided with three rails that respectively fit with three sets of rail fixing posts (402). The built-in spiral multirail handlebar (301) is sleeved on the handlebar fixing rod (401), and the rail fixing posts (402) are located inside the rails of the built-in spiral multirail handlebar (301). The handlebar housing (404) is provided with a Hall element sensing mechanism (1) inside, and the sensing end of the Hall element sensing mechanism (1) is provided with a reset mechanism (2); the reset mechanism (2) is sleeved on the locking handlebar mechanism (3) and the frame mechanism, and the reset mechanism (2) resets the built-in spiral multirail handlebar (301) after it rotates; the Hall element sensing mechanism (1) is used to sense the resistance value generated by the rotation of the built-in spiral multirail handlebar (301) and control the motor speed. The reset mechanism (2) includes a fixed frame (201), a locking reset spring (204), a reset spring fixing plate (203), a magnet fixed frame cover (202), and a Hall element reset spring (205); the fixed frame (201) is detachably connected to the fixed frame slot (403), and the fixed frame (201) is rotatably sleeved on the built-in spiral multirail handlebar (301). Spring fixing slots are provided inside the fixed frame (201) and the reset spring fixing plate (203); the locking reset spring (204) is fixed through the spring fixing slot of the fixed frame (201). The locking reset spring (204) and the Hall element reset spring (205) are... 5) A fixed connection is achieved through the spring fixing groove of the reset spring fixing plate (203); the built-in spiral multi-rail handle (301) is simultaneously fixed and adjusted on the locking reset spring (204), the reset spring fixing plate (203) and the Hall element reset spring (205); the sensing end of the Hall element sensing mechanism (1) is set on the end of the fixed frame (201), the magnet fixed frame cover (202) is detachably connected to the fixed frame (201), and the magnet fixed frame cover (202) is used to fix the sensing end of the Hall element sensing mechanism (1); wherein, the spiral directions of the locking reset spring (204) and the Hall element reset spring (205) are opposite. The Hall element sensing mechanism (1) includes a Hall element (101), a Hall element storage box (102), a Hall element storage box cover (103), a controller (105), and a magnet (106). The magnet (106) is installed on the end of a fixed frame (201), and the magnet fixed frame cover (202) covers the magnet (106). The Hall element storage box (102) is fixedly connected to the magnet fixed frame cover (202). The Hall element (101) is detachably installed in the Hall element storage box (102). The Hall element storage box cover (103) is detachably connected to the Hall element storage box (102). The Hall element (101) is electrically connected to the controller (105).

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