Intelligent electric adjustable dumbbells and control methods

Abstract

This invention discloses an intelligent electric adjustable dumbbell, comprising a dumbbell barrel sleeve and two telescopic rods located within the dumbbell barrel sleeve. Each telescopic rod extends and retracts synchronously along the axial direction of the dumbbell barrel sleeve. The weight plates are each composed of several weight plates stacked sequentially along their axial direction, with adjacent weight plates axially locked together. The telescopic rods penetrate the axial direction of each weight plate to achieve radial positioning. The dumbbell barrel sleeve is fixedly connected to the weight plates. A telescopic mechanism is provided on the dumbbell barrel sleeve. The base includes a drive mechanism, and a power output mechanism is configured in conjunction with the telescopic mechanism to control the extension of the telescopic rods into the axial holes of one or more weight plates. When the telescopic rods extend into the axial holes of one or more weight plates, the corresponding number of weight plates are assembled to both ends of the dumbbell barrel sleeve via the telescopic rods. This invention overcomes the limitations of intelligently adjusting the weight plate weights, avoids errors in weight adjustment, enhances user interactivity, and thus improves the intelligence level of the intelligent electric adjustable dumbbell, which is beneficial for market promotion and application.

Description

Technical Field

[0001] This invention relates to the field of fitness equipment technology, and more particularly to intelligent electric adjustable dumbbells and control methods. Background Technology

[0002] Traditional dumbbells include both one-piece dumbbells and separate dumbbells.

[0003] One-piece dumbbells are typically cast from a single piece of cast iron and coated with a plastic coating. Each size is a single dumbbell with a uniform weight. If you need multiple sizes for your workout, you'll need to buy several, which can be difficult to manage and store.

[0004] A split dumbbell consists of a dumbbell bar, weight plates, and a locking nut. Different weight plates can be selected according to the weight required for training. However, each time you change weight plates, you need to first unscrew the locking nut, install the appropriate weight plates, and then tighten the locking nut, which is relatively troublesome, time-consuming, and laborious. Summary of the Invention

[0005] This invention addresses one or more of the aforementioned existing problems by proposing an intelligent electrically adjustable dumbbell and a control method.

[0006] According to one aspect of the present invention, a smart electric adjustable dumbbell is provided, comprising: a dumbbell body and a base for placing the dumbbell body;

[0007] The dumbbell body includes: a dumbbell bar assembly and a weight plate axially connected to both ends of the dumbbell bar assembly;

[0008] The dumbbell bar assembly includes a dumbbell bar sleeve and two telescopic rods located inside the dumbbell bar sleeve, and each of the telescopic rods extends and retracts synchronously along the axial direction of the dumbbell bar sleeve.

[0009] The bell counterweight is composed of several bells stacked axially in sequence, with adjacent bells locked together axially, and the bells are radially positioned by the telescopic rod passing through the axial direction of each bell.

[0010] The weight plate closest to the dumbbell bar sleeve in each weight plate is defined as the fixed weight plate, and the dumbbell bar sleeve is fixedly connected to the fixed weight plate;

[0011] The dumbbell bar sleeve is provided with a telescopic mechanism, and the base includes a drive mechanism disposed on the base. The power output mechanism is configured in cooperation with the telescopic mechanism and is used to control the telescopic rod to extend into the shaft hole of one or more of the bell pieces, so that the corresponding number of bell pieces are assembled to both ends of the dumbbell bar sleeve through the telescopic rod.

[0012] In some embodiments, the telescopic mechanism includes an output gear located at one end of the telescopic rod, the output gear being rotatably connected to the telescopic rod via a bearing;

[0013] The power output mechanism includes a drive shaft mounted on the base and transition gears connected to both ends of the drive shaft. When the dumbbell body is placed on the base, the transition gears mesh with the output gears.

[0014] In some embodiments, the base further includes a drive mechanism and a controller disposed on the base. The controller is electrically connected to the drive mechanism, and the drive mechanism is used to control the power output mechanism to output power to rotate and extend the telescopic rod.

[0015] In some embodiments, infrared rangefinders are respectively provided at both ends of the base. Each infrared rangefinder is electrically connected to the controller. The infrared rangefinder and each telescopic rod are located on the same horizontal plane. The end of each telescopic rod closest to the infrared rangefinder is defined as the first end. The infrared rangefinder is used to obtain the weight of the currently used bell counterweight by detecting the distance between the first end of each telescopic rod and the rangefinder.

[0016] In some embodiments, the drive mechanism is a motor, the motor is connected to an encoder, and the output gear of the motor meshes with the transition gear.

[0017] In some embodiments, the base is equipped with a touch screen, which is electrically connected to the controller, and the touch screen is used to provide the user with an input of the weight of the bell counterweight.

[0018] In some embodiments, the base further includes a rechargeable battery and a charging port electrically connected to the rechargeable battery, the rechargeable battery being used to power the controller, the touch screen, and the motor, and the charging port being used to charge the rechargeable battery.

[0019] According to a second aspect of the present invention, a dumbbell control method is provided, employing the above-described intelligent electrically adjustable dumbbell, comprising the following steps:

[0020] Receives selection instructions from the user-defined bell weight data;

[0021] Control commands are generated based on the received bell weight data;

[0022] The control command is used to process the weight plate data to obtain the required number of weight plates, thereby controlling the weight of the weight plate of the dumbbell body.

[0023] In some implementations, processing the weight plate data according to the control command to obtain the required number of weight plates, in order to control the weight of the weight plate of the dumbbell body set in the output, includes the following steps:

[0024] Get the pre-stored weight of each bell;

[0025] The required number of bells is determined based on the weight of each bell and the bell counterweight data set by the user.

[0026] The number of rotations of the motor output gear is calculated and controlled based on the required number of bells, and whether it rotates forward or backward, thereby controlling the rotation direction and extension length of each telescopic rod to achieve the required number of bells.

[0027] In some implementations, after calculating and controlling the number of rotations of the motor output gear based on the required number of bells, thereby controlling the extension length of each telescopic rod to achieve the required number of bells, the following steps are also included:

[0028] Determine whether the position reached by the end of each telescopic rod near the corresponding bell weight after the telescopic process is correct. If correct, output the correct weight of the bell weight.

[0029] The beneficial effects of this invention are:

[0030] This invention, through the cooperation of a dumbbell bar sleeve, a telescopic mechanism, a drive mechanism, and weight plates, controls the telescopic bar to extend into the shaft holes of one or more weight plates. A telescopic rangefinder measures the position of the telescopic bar, thereby ultimately verifying the weight of the dumbbell's counterweight and ensuring its accuracy. Therefore, this invention overcomes the limitations of existing technologies in intelligently adjusting the weight of the weight plates, preventing errors in weight adjustment, enhancing user interaction, and improving the overall intelligence of the smart electric adjustable dumbbell, thus facilitating its market promotion and application. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of an intelligent electric adjustable dumbbell;

[0032] Figure 2 A schematic cross-sectional view of the dumbbell body of an intelligent electric adjustable dumbbell;

[0033] Figure 3 A schematic cross-sectional view of the dumbbell body of an intelligent electric adjustable dumbbell;

[0034] Figure 4 A cross-sectional schematic diagram of the base of a smart electric adjustable dumbbell body;

[0035] Figure 5An explosion diagram of a smart, electrically adjustable dumbbell;

[0036] Figure 6 This is a schematic diagram of an explosion from another angle of a smart, electrically adjustable dumbbell.

[0037] Figure 7 A schematic diagram of the cross-section of an intelligent electric adjustable dumbbell;

[0038] Figure 8 This is an enlarged schematic diagram of a portion of the exploded view of an intelligent electric adjustable dumbbell;

[0039] Figure 9 This is a schematic diagram of the motor structure of an intelligent electric adjustable dumbbell;

[0040] Figure 10 A schematic diagram of the structure of the weight plates in an intelligent electric adjustable dumbbell;

[0041] Figure 11 A top view of the base of a smart electric adjustable dumbbell;

[0042] Figure 12 A flowchart of a dumbbell control method;

[0043] Figure 13 This is a partial flowchart of a dumbbell control method;

[0044] Figure 14 This is a flowchart of an embodiment of a dumbbell control method. Detailed Implementation

[0045] The technical solution proposed in this application will be further described in detail below with reference to the accompanying drawings.

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0048] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0049] Example 1

[0050] like Figure 1-6 As shown, the present invention provides an intelligent electric adjustable dumbbell, including: a dumbbell body 100 and a base 200 for placing the dumbbell body;

[0051] The dumbbell body 100 includes: a dumbbell bar assembly and a weight plate connected axially to both ends of the dumbbell bar assembly;

[0052] The dumbbell bar assembly includes a dumbbell bar sleeve 104 and two telescopic rods located inside the dumbbell bar sleeve, with each telescopic rod extending and retracting synchronously along the axial direction of the dumbbell bar sleeve.

[0053] The bell counterweight is composed of several bells stacked axially in sequence. Adjacent bells are axially locked together, and radial positioning of each bell is achieved by a telescopic rod passing through the axial direction of each bell.

[0054] The weight plate closest to the dumbbell bar sleeve in each weight plate is defined as the fixed weight plate, and the dumbbell bar sleeve 104 is fixedly connected to the fixed weight plate.

[0055] The dumbbell bar sleeve 104 is provided with a telescopic mechanism. The base 200 includes a drive mechanism provided on the base. The power output mechanism is configured in cooperation with the telescopic mechanism and is used to control the telescopic rod to extend into the shaft hole of one or more bell plates 3. When the telescopic rod extends into the shaft hole of one or more bell plates 3, the corresponding number of bell plates 3 are assembled to both ends of the dumbbell bar sleeve 104 through the telescopic rod.

[0056] Therefore, by using a dumbbell bar assembly and a weight plate counterweight, and through the cooperation of the dumbbell bar sleeve, telescopic mechanism, drive mechanism, and weight plates, the corresponding number of weight plates are assembled to both ends of the dumbbell bar sleeve through the telescopic rod when the telescopic rod extends into the shaft hole of one or more weight plates, thereby realizing the adjustment of the weight plate counterweight.

[0057] like Figure 2 As shown, specifically, the telescopic mechanism includes an output gear located at one end of each telescopic rod, and the output gear is rotatably connected to the telescopic rod via a bearing 102;

[0058] like Figure 4 As shown, the power output mechanism includes a drive shaft 206 mounted on the base and transition gears 208 connected to both ends of the drive shaft 206. When the dumbbell body 100 is placed on the base 200, the transition gears 208 mesh with each output gear.

[0059] Infrared rangefinders 202 are respectively installed at both ends of the base 200. Each infrared rangefinder 202 is electrically connected to the controller. The infrared rangefinder 202 and each telescopic rod are located on the same horizontal plane. The end of each telescopic rod closest to the infrared rangefinder 202 is defined as the first end. The infrared rangefinder 202 is used to detect the distance between the first end of each telescopic rod and the controller.

[0060] The drive mechanism 211 is a motor, which is connected to an encoder. The output gear of the motor meshes with the transition gear 208.

[0061] like Figure 3-6 As shown, the dumbbell bar assembly 100 includes a dumbbell bar sleeve 104, with a right telescopic bar 105 and a left telescopic bar 106 connected to both ends of the dumbbell bar sleeve 104 respectively. The dumbbell bar assembly 100 also includes a fixed weight plate 101, an oil-impregnated bearing 102, a right output gear 103, a left output gear 107, a countersunk head screw 108, a safety pin 109, a first spring 110, a pin 111, and a second spring 112.

[0062] An oil-impregnated bearing 102 is installed at both ends of the right output gear 103 and the left output gear 107, and then screwed onto the right telescopic rod 105 and the left telescopic rod 106 respectively. The right output gear 103 corresponds to the right telescopic rod 105, and the left output gear 107 corresponds to the left telescopic rod 106. These bearings are inserted into the dumbbell bar sleeve 104, which is a hollow shaft. Fixed weight plates 101 are inserted into both ends of the dumbbell bar sleeve 104, and the fixed weight plates 101 are connected to the dumbbell bar sleeve 104 using countersunk hexagonal screws 108.

[0063] like Figure 3-8 As shown, a rectangular through hole is provided on the safety pin 109, which is set along its length. One end of the safety pin 109 is inserted into the first spring 110 and into the inner hole of the dumbbell bar sleeve 104. When the dumbbell end is taken out of the base end, the other end of the safety pin 109 is inserted into the output gear. The pin 111 is inserted into the lower hole of the dumbbell bar sleeve 104. A second spring 112 is sleeved on the pin 111, and the pin 111 is inserted into the square hole of the safety pin 109.

[0064] Specifically, the pin 111 includes a pin head and a pin post. In this embodiment, the cross-section of the pin head is a right trapezoid or a right triangle, and the beveled end of the pin head is in contact with the rectangular through hole. Thus, when the dumbbell body is placed in the base 200, the unlocking pin 212 provided on the base 200 will cause the pin 111 to move upward, thereby causing one end of the safety pin 109 to disengage from the gear.

[0065] like Figure 7As shown, each bell 3 in the bell counterweight includes a through hole, a protrusion 103, and a groove 104. The bells 3 are connected to each other by dovetail grooves on the bells, so that the bells 3 can only be disengaged from the top and bottom. When there is a telescopic rod in the hole of the bell 3, the bells 3 cannot be disengaged.

[0066] like Figure 9 As shown, the base is provided with bell plate limiting plates 214 at equal intervals for placing bell plates in the vertical direction. When the bell plate 3 is placed on the base 200, the bell plate limiting plates 214 on the base 200 will limit the bell plate 3, so that the dovetail groove of the bell plate 3 is in the vertical direction, and the left and right directions of the bell plate 3 are also limited.

[0067] Specifically, the bell slat 3 is circular or a regular polygon, such as a regular hexagon or octagon, with adjacent sides rounded off. The through-hole of the bell slat 3 is located at the center of the bell slat, and the shape of the through-hole matches the shape of the telescopic rod. A protrusion is located on one side of the bell slat, and its cross-section is convex. Its longitudinal cross-section shape is trapezoidal, trumpet-shaped, etc. In this embodiment, a rectangle is the preferred implementation.

[0068] A groove is located on the other side of the bell plate, and its cross-section is concave to match the shape of the protrusion. There is one protrusion and one groove. The protrusion can be located on the upper part of one side (front or rear) of the bell plate, and the groove can be located on the upper part of the other side (rear or front) of the bell plate. Alternatively, the protrusion can be located on the lower part of one side (front or rear) of the bell plate, and the groove can be located on the lower part of the other side (rear or front) of the bell plate.

[0069] Optionally, the number of protrusions and the number of grooves 104 are both two. The protrusions and grooves described above can be provided on both the upper and lower parts of the bell to match.

[0070] Thus, the protrusion of one bell slides into the groove of the other bell, thereby tightly connecting the two bells together.

[0071] like Figure 4 As shown, infrared rangefinders 202 are respectively installed at both ends of the base 200. Each infrared rangefinder 202 is electrically connected to the controller. The infrared rangefinder 202 and each telescopic rod are located on the same horizontal plane. The end of each telescopic rod closest to the infrared rangefinder 202 is defined as the first end. The infrared rangefinder 202 is used to detect the distance between the first end of each telescopic rod and the controller.

[0072] like Figure 4As shown, the base 200 includes a base body 201, an internal hexagonal pan head screw 203, a deep groove ball bearing 204, a shaft retaining ring 205, a drive shaft 206, a hole retaining ring 207, a transition gear 208, a flat key 209, a retaining ring 210, and a motor 211. The drive shaft 206 is installed in the base body 201, and deep groove ball bearings 204 are installed at both ends. The deep groove ball bearings 204 are fixed to the drive shaft 206 by the shaft retaining ring 205 and fixed to the base body 201 by the hole retaining ring 207. Then, transition gears 208 are installed at both ends of the drive shaft 206, and the drive shaft 206 and the transition gears 208 are connected by a flat key 209.

[0073] The drive mechanism is a motor, which is connected to an encoder. The output gear of the motor meshes with a transition gear. Therefore, the motor 211 can be an integrated component, including the motor body, reducer, encoder, and motor output gear, which meshes with a transition gear 208 at one end of the drive shaft 206.

[0074] An infrared rangefinder 202 is also mounted at each end of the base 200, and is connected to the base control board via a data cable. The base control board includes a microcontroller, a display driver, a touch screen driver, a battery charging and discharging management circuit, a motor operation detection circuit, a motor drive circuit, a motor rotation position feedback circuit, a counterweight selection detection circuit, a ranging and positioning circuit, a communication data transmission circuit, a contact switch circuit, etc.

[0075] The base 200 is also equipped with a touch screen, which is electrically connected to the controller. The touch screen is used to provide users with the input of the weight of the weight plate counterweight, thereby making it convenient for users to input and adjust the weight of the weight plate counterweight and query exercise data.

[0076] The base also includes a rechargeable battery and a charging port that is electrically connected to the rechargeable battery. The rechargeable battery is used to power the controller, touch screen and motor, and the charging port is used to charge the rechargeable battery. The rechargeable battery is connected to a USB interface through a charging circuit.

[0077] In addition, the dumbbell body includes an upper control board, on which a six-axis sensor is mounted. This sensor calculates the number of repetitions and acceleration of the dumbbell, thus determining the calories burned by the user. When the dumbbell body is placed in the base 200, the rechargeable battery is charged via contact pins.

[0078] Optionally, the base is provided with a placement groove for placing the bell counterweight, and an anti-rotation pin 213 is provided in the placement groove. The anti-rotation pin 213 is used to connect the contact switch circuit in the lower control board of the base when the fixed bell of the bell counterweight is placed in the placement groove.

[0079] As shown in the figure

[0080] like Figure 1-11 As shown, the working principle of this invention is as follows:

[0081] Place the dumbbell body whose weight needs to be adjusted into the base 200. The anti-rotation pin 213 on the base 200 will connect to the anti-rotation hole of the fixed weight plate 101. The anti-rotation pin 213 moves downward under force, the contact switch circuit is turned on, the infrared rangefinder 202 starts to work, and measures the current position of the left extension 105 and the left extension rod 106 of the dumbbell, thereby obtaining the current weight of the weight plate. The weight display box on the touch screen displays the current weight of the weight plate, which can be read by the user.

[0082] When the weight of the weight plate needs to be adjusted, when the dumbbell body is placed in the base 200, the unlocking pins 212 of the locking mechanism on both sides of the base 200 will cause the pin 111 to move upward. The upward movement of the pin 111 will drive the safety pin 109 to move inward. The safety pin 109 will disengage from the gear slots of the right output gear 103 and the left output gear 107, and the right output gear 103 and the left output gear 107 can rotate normally, so that the dumbbell is in the unlocked state.

[0083] To adjust the weight of the bell counterweight, you can enter the desired weight in the weight box on the touchscreen or press the "+" or "-" weight adjustment keys on the touchscreen to adjust to the corresponding weight. In this embodiment, there are a total of 8 weight options: 4.5kg, 7kg, 9kg, 11kg, 13.5kg, 16kg, 18kg, and 20.5kg. (Press once) <ok>After receiving a control command from the base control board, the motor 211 starts operating, driving the motor output gear to rotate forward / reverse. The motor output gear drives one end of the transition gear 208 to rotate, which in turn drives the other end of the transition gear 208 to rotate synchronously via the transmission shaft 206. The transition gear 208 and the transmission shaft 206 are connected by a flat key. The two transition gears 208 drive the right output gear 103 and the left output gear 107 to rotate. The rotation of the right output gear 103 will drive the right telescopic rod 105 to move. The right output gear 103 and the right telescopic rod 105 are connected by a left-hand trapezoidal thread. Next, the rotation of the left output gear 107 will drive the left telescopic rod 106 to move. The left output gear 107 and the left telescopic rod 106 are connected by a right-hand trapezoidal thread. When the motor 211 is running, the encoder will calculate the number of rotations of the motor output gear. After the number of rotations reaches the command requirement, the motor will stop running, and the right telescopic rod 105 and the left telescopic rod 106 will stop moving. The infrared rangefinders 202 located at both ends of the base will start working, measuring the current position of the right telescopic rod 105 and the left telescopic rod 106 respectively, thereby determining whether the weight of the weight plate is correct. If the weight of the weight plate is correct, the touch screen will display the corresponding weight, and the user can then take out the dumbbell from the base 200 for exercise.

[0084] When the dumbbell is removed from the base 200, the unlocking pins 212 of the locking mechanism on both sides of the base 200 will disengage, the pin 111 will move downward under the pressure of the second spring 112, and the safety pin 109 will move outward under the pressure of the first spring 110. The safety pin 109 will be inserted into the gear slots of the right output gear 103 and the left output gear 107, and the right output gear 103 and the left output gear 107 will not be able to rotate, thus locking the dumbbell and preventing the weight plates from falling off during use.

[0085] When training with the dumbbells, as the dumbbells move, the upper control panel uses a six-axis sensor to calculate the number of times the dumbbells move and their acceleration, thereby determining the calories burned by the user.

[0086] After the training is completed, place the dumbbell into the base 200. The communication data transmission circuit on the upper control board of the dumbbell will transmit the values ​​obtained from the training to the control board of the base, and display the values ​​of this training on the display screen, including the number of repetitions, frequency, and calories.

[0087] Example 2

[0088] Figure 12 This is a flowchart illustrating a dumbbell control method provided in an embodiment of the present invention. This embodiment provides a dumbbell control method, wherein the subject of the dumbbell control method can be an intelligent electric adjustable dumbbell, and specifically includes the following steps:

[0089] S101: Receives selection instructions for bell weight data set by the user via the input module;

[0090] S102: The instruction generation module generates control instructions based on the received bell counterweight data;

[0091] S103: The control module processes the weight plate data according to the control command to obtain the required number of weight plates, so as to control the weight of the weight plate of the dumbbell body set in the output.

[0092] Specifically, the process of processing the weight plate data according to control commands to obtain the required number of weight plates, in order to control the weight of the weight plate of the dumbbell body set in the output, includes the following steps:

[0093] like Figure 13 As shown, S1031: Obtain the pre-stored weight of each bell piece through the storage module;

[0094] S1032: The calculation module obtains the required number of bells based on the weight of each bell and the bell counterweight data set by the user;

[0095] S1033: The instruction control module calculates and controls the number of rotations of the motor output gear, and whether it rotates forward or backward, based on the required number of bells, thereby controlling the rotation direction and extension length of each telescopic rod to achieve the required number of bells.

[0096] like Figure 14 As shown, specifically, after calculating and controlling the number of rotations of the motor output gear based on the required number of bells, thereby controlling the extension length of each telescopic rod to achieve the required number of bells, the following steps are also included:

[0097] S104: The identification and judgment module determines whether the position reached by the end of each telescopic rod near the corresponding bell weight after the telescopic process is correct. If correct, the correct weight of the bell weight is output.

[0098] In this embodiment, a memory is included, which pre-stores the weight data of the bell counterweight at the corresponding position of the telescopic rod. The specific implementation process and the effect achieved by the above steps S101-S104 are the same as the specific implementation process and the effect achieved by the intelligent electric dumbbell in the above embodiment 1. For details, please refer to the above description, which will not be repeated here.

[0099] The intelligent electric dumbbell control method provided in this embodiment receives a selection command for the weight plates set by the user, generates control commands based on the received weight plate data, calculates and controls the number of rotations of the motor output gear, and determines whether it rotates forward or backward according to the required number of weight plates. This controls the rotation direction and extension length of each telescopic rod to achieve the required number of weight plates. It also determines whether the position of the end of each telescopic rod closest to the corresponding weight plate after extension is correct. If correct, it outputs the correct weight of the weight plate. In other words, by receiving the selection command, the motor is controlled to rotate the telescopic rod forward and backward to achieve the appropriate extension length. The distance from the first end of the left telescopic rod is measured by an infrared rangefinder on the left, and the distance from the first end of the right telescopic rod is measured by an infrared rangefinder on the right, thus determining whether the position of each telescopic rod is correct. This method overcomes the limitations of existing technologies in intelligently adjusting the weight of the weight plates, avoids errors in weight adjustment, enhances user interaction, and improves the intelligence level of the intelligent electric adjustable dumbbell, which is beneficial for market promotion and application.

[0100] The intelligent electric dumbbell control method shown in this embodiment can be used in... Figure 1-11 The intelligent electric adjustable dumbbell shown in the figure operates on the same principle and with the same technical effect, and will not be described in detail here.

[0101] The above descriptions are merely some embodiments of the present invention. Those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.< / ok>

Claims

1. A smart electric adjustable dumbbell, characterized in that, include: The dumbbell body (100) and the base (200) for placing the dumbbell body are included. The dumbbell body (100) includes a dumbbell bar assembly and a weight plate connected axially to both ends of the dumbbell bar assembly. The dumbbell bar assembly includes a dumbbell bar sleeve (104) and two telescopic rods located inside the dumbbell bar sleeve. Each telescopic rod telescopically extends and retracts axially along the dumbbell bar sleeve. The dumbbell bar sleeve (104) is connected to a right telescopic rod (105) and a left telescopic rod (106) at both ends. The dumbbell bar assembly also includes a fixed weight plate (101), an oil-impregnated bearing (102), a right output gear (103), a left output gear (107), a countersunk hexagonal screw (108), a safety pin (109), a first spring (110), a pin (111), and a second spring (112). The right output gear (103) and the left output gear (107) are connected at both ends of the countersunk hexagonal screw (108). An oil-impregnated bearing (102) is installed on the right telescopic rod (105) and the left telescopic rod (106) respectively. The right output gear (103) corresponds to the right telescopic rod (105), and the left output gear (107) corresponds to the left telescopic rod (106). The bearings are inserted from both ends of the dumbbell rod sleeve (104), which is a hollow shaft. Fixed weight plates (101) are installed at both ends of the dumbbell rod sleeve (104). The fixed weight plates (101) are connected to the dumbbell rod sleeve (104) with hexagon countersunk screws (108). The weight plates are composed of several weight plates stacked axially. Adjacent weight plates are axially locked together, and the radial positioning of each weight plate is achieved by the telescopic rod passing through the axial direction of each weight plate. The weight plate closest to the dumbbell rod sleeve in each weight plate is defined as the fixed weight plate. The dumbbell rod sleeve (104) is fixedly connected to the fixed weight plate.The dumbbell bar sleeve (104) is provided with a telescopic mechanism. The base (200) includes a drive mechanism mounted on the base. A power output mechanism is configured to cooperate with the telescopic mechanism and is used to control the telescopic rod to extend into the shaft hole of one or more of the bell plates (3). When the telescopic rod extends into the shaft hole of one or more of the bell plates (3), a corresponding number of bell plates (3) are assembled to both ends of the dumbbell bar sleeve (104) through the telescopic rod. The telescopic mechanism includes an output gear located at one end of each telescopic rod. The output gear is rotatably connected to the telescopic rod through a bearing (102). The power output mechanism includes a drive shaft (206) mounted on the base and a drive shaft (206) connected to the drive shaft. The transition gears (208) at both ends of the shaft (206) mesh with each of the output gears when the dumbbell body (100) is placed on the base (200). Infrared rangefinders (202) are respectively provided at both ends of the base (200). Each infrared rangefinder (202) is electrically connected to the controller. The infrared rangefinder (202) and each telescopic rod are located on the same horizontal plane. The end of each telescopic rod that is close to the infrared rangefinder (202) is defined as the first end. Each infrared rangefinder (202) is used to detect the distance between the first end of each telescopic rod and the corresponding first end. The base is provided with a placement slot for placing the bell counterweight. An anti-rotation pin (213) is provided in the placement slot. The anti-rotation pin (213) is used to connect the contact switch circuit in the lower control board of the base when the fixed bell of the bell counterweight is placed in the placement slot. When the dumbbell body is placed in the base (200), the anti-rotation pin (213) on the base (200) can be connected to the anti-rotation hole of the fixed weight plate (101). The anti-rotation pin (213) moves downward under force, the contact switch circuit is turned on, the infrared rangefinder (202) starts to work, and measures the current position of the right telescopic rod (105) and the left telescopic rod (106) of the dumbbell.

2. The intelligent electric adjustable dumbbell according to claim 1, characterized in that, The base also includes a drive mechanism (211) and a controller disposed on the base. The controller is electrically connected to the drive mechanism (211). The drive mechanism (211) is used to control the power output mechanism to output power to make the telescopic rod rotate and extend.

3. The intelligent electric adjustable dumbbell according to claim 1, characterized in that, The drive mechanism (211) is a motor, which is connected to an encoder, and the output gear of the motor meshes with the transition gear (208).

4. The intelligent electric adjustable dumbbell according to claim 1, characterized in that, The base (200) is equipped with a touch screen, which is electrically connected to the controller. The touch screen is used to provide the user with the input of the weight of the bell counterweight.

5. The intelligent electric adjustable dumbbell according to claim 1, characterized in that, The base (200) also includes a rechargeable battery and a charging port electrically connected to the rechargeable battery. The rechargeable battery is used to power the controller, the touch screen and the motor, and the charging port is used to charge the rechargeable battery.

6. A dumbbell control method, characterized in that, The intelligent electric adjustable dumbbell described in any one of claims 1-5 is used. The process includes the following steps: receiving a selection instruction for the bell weight data set by the user; generating control instructions based on the received bell weight data; The control command is used to process the weight plate data to obtain the required number of weight plates, thereby controlling the weight of the weight plate of the dumbbell body.

7. The dumbbell control method according to claim 6, characterized in that, The process of processing the weight plate data according to the control command to obtain the required number of weight plates, in order to control the weight of the weight plate of the dumbbell body set by the output, includes the following steps: obtaining the weight of each pre-stored weight plate; obtaining the required number of weight plates according to the weight of each weight plate and the weight plate data set by the user. The number of rotations of the motor output gear is calculated and controlled based on the required number of bells, and whether it rotates forward or backward, thereby controlling the rotation direction and extension length of each telescopic rod to achieve the required number of bells.

8. A dumbbell control method according to claim 6, characterized in that, After calculating and controlling the number of rotations of the motor output gear based on the required number of bells, thereby controlling the extension length of each telescopic rod to achieve the required number of bells, the following steps are also included: determining whether the position reached by the end of each telescopic rod near the corresponding bell counterweight after the extension process is correct; if correct, outputting the correct weight of the bell counterweight.

Images