Assembly type machine core of bodybuilding machine
By using an adjustable upper rocker and lower base frame structure, combined with the motor position and transmission mechanism, flexible assembly of the bodybuilding machine mechanism is achieved, solving the problems of low production efficiency, high cost and poor versatility in existing technologies, and realizing efficient and low-cost multi-specification adaptive production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-18
- Publication Date
- 2026-03-24
AI Technical Summary
The existing fitness machine mechanism suffers from low production efficiency, high processing difficulty and cost due to welding process, and lacks versatility, making it difficult to adapt to the needs of different specifications and models, resulting in high inventory pressure and high repair costs.
It adopts an adjustable upper rocker arm and lower base frame structure, combined with an adjustable motor position and transmission mechanism, and is connected by pins and bushings to achieve flexible assembly of the rocker arm and base rod, supporting the production of bodybuilding machine mechanisms of different specifications and models.
It improves production efficiency and versatility, reduces production and spare parts costs, simplifies the maintenance process, reduces inventory pressure, and adapts to the needs of different specifications and models of fitness machines.
Smart Images

Figure CN224023862U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to body-building equipment technical field, especially a kind of assembly type body-building machine core suitable for different specifications and models. BACKGROUND
[0002] Body-building machine is also called fat-burning machine, which is a kind of machine that helps passive exercise of whole body fat through vibration to promote gastrointestinal peristalsis, consume calories, lose weight, slim body, etc., and quickly relax human muscles, promote blood circulation, accelerate decomposition of lactic acid, relieve exercise fatigue, etc. However, the upper rocker and lower chassis of the existing body-building machine core are generally fixedly connected by welding, which has the following problems: first, the welding process has low production efficiency, high processing difficulty and high cost, and once the core is damaged during use, it is difficult to repair, and the entire core needs to be replaced, which has high repair cost; second, due to different sizes, power and styles of body-building machines, the same parts cannot be used universally, and the factory needs to be equipped with a considerable number of upper rockers and lower chassis of different specifications and models, which has high inventory pressure and high proportion of working capital, and is not suitable for factory production organization; third, the motor of the existing technology can only be adjusted in one direction, and a machine seat needs to be equipped to realize forward and backward adjustment of the motor. In order to solve the above problems, a core structure that is simple to install, flexible, convenient, low in cost and suitable for different specifications and models is needed, but so far there is no ideal product on the market. SUMMARY
[0003] To overcome the above-mentioned deficiencies of the prior art, the utility model aims to provide a kind of assembly type body-building machine core with simple and reasonable structure, flexible and convenient installation, less spare parts, good universality, high production efficiency and suitability for different specifications and models.
[0004] The utility model solves the technical scheme that it adopts to solve its technical problem, it includes upper rocker, drive assembly, lower chassis, the lower chassis includes two bottom bars, left and right chassis connecting plate, motor fixing plate, left and right chassis connecting plate is correspondingly fixed in the lower bottom surface of two bottom bars, and motor fixing plate is centrally installed on the lower bottom surface of two bottom bars with adjustable left and right positions;The upper rocker includes two rocker arms, left and right rocker connecting plates, and the left and right rocker connecting plates are correspondingly fixed on the upper surfaces of the two rocker arms, the left rocker connecting plate or the right rocker connecting plate is provided with a rocker connecting seat, the two rocker arms are respectively provided with U-shaped swing joints and are correspondingly hinged on the shaft holes of the two bottom bars through a pin shaft, and the drive assembly is installed on the lower chassis and drives the upper rocker to swing.
[0005] The further scheme of the utility model discloses, drive assembly including motor, transmission mechanism, eccentric shaft seat, eccentric shaft, U type connecting block, motor adjustable installation on the motor fixed plate before and after position, eccentric shaft seat is fixed on left chassis connecting plate or right chassis connecting plate, eccentric shaft rotatablely installs on eccentric shaft seat, U type connecting block is fixed on cradle connecting seat and is connected with eccentric shaft, motor drives eccentric shaft rotation through transmission mechanism, eccentric shaft drives upper cradle reciprocating swing through U type connecting block and fixed cradle connecting seat.
[0006] The further scheme of the utility model discloses, the axle hole of bottom bar is installed with the shaft sleeve that is rotatable with pin shaft.
[0007] The further scheme of the utility model discloses, bottom bar is equipped with the mounting hole for installing suction cup foot pad.
[0008] After adopting above-mentioned structure, compared with prior art has following advantages and effects: first, the utility model can select the rocker and bottom bar of different length and the motor of different power, and different specifications and models of body-building machine core can be assembled, and the factory production is simple and convenient, production efficiency is high, the proportion of spare parts and circulating funds is less, and the utility model has good versatility, which is beneficial to warehouse fine management, and production cost can be greatly reduced. Second, the after-sales service cost is low, and damaged components can be replaced according to actual use damage, and the problem that the existing core spare parts damage needs to be replaced as a whole is solved. BRIEF DESCRIPTION OF DRAWINGS
[0009] Fig. 1 It is the exploded view of the utility model.
[0010] Fig. 2 It is the installation structure schematic view of the drive assembly of the utility model.
[0011] Fig. 3 It is the installation structure schematic view of the utility model.
[0012] Wherein 1 upper cradle, 2 drive assembly, 3 lower chassis, 4 pin shaft, 5 suction cup foot pad, 11 left cradle connecting plate, 12 right cradle connecting plate, 13 cradle connecting seat, 14 rocker 14, 15 U type swing joint, 21 motor, 22 transmission mechanism, 23 U type connecting block, 24 eccentric shaft, 25 eccentric shaft seat, 31 bottom bar, 32 shaft sleeve, 33 left chassis connecting plate, 34 motor fixed plate, 35 right chassis connecting plate. DETAILED DESCRIPTION
[0013] Figs. 1 to 3The utility model discloses a kind of assembled bodybuilding machine core, it includes upper rocker 1, drive assembly 2, lower chassis 3, the lower chassis 3 includes two bottom bars 31, left and right chassis connecting plate 33,35, motor fixing plate 34, left and right chassis connecting plate 33,35 are fixed on the lower bottom surface of two bottom bars 31 two sides correspondingly, motor fixing plate 34 is centrally installed on the lower bottom surface of two bottom bars 31 by the left and right waist hole on motor fixing plate 34 left and right position adjustable;The upper rocker 1 includes two rocker bars 14, left and right rocker connecting plate 11,12, left and right rocker connecting plate 11,12 are fixed on the upper surface of two rocker bars 14 correspondingly, rocker connecting seat 13 is equipped on left rocker connecting plate 11 or right rocker connecting plate 12, two rocker bars 14 are respectively equipped with U type swing joint 15 and are hingedly connected on the shaft hole of two bottom bars 31 through pin shaft 4 correspondingly, drive assembly 2 is installed on lower chassis 3 and drives upper rocker 1 swing.
[0014] The drive assembly 2 includes motor 21, transmission mechanism 22, eccentric shaft seat 25, eccentric shaft 24, U-shaped connecting block 23, motor 21 is installed on motor fixing plate 34 by the front and rear waist hole on motor fixing plate 34 front and rear position adjustable, eccentric shaft seat 25 is fixed on left chassis connecting plate 33 or right chassis connecting plate 35, eccentric shaft 24 is rotatably installed on eccentric shaft seat 25, U-shaped connecting block 23 is fixed on rocker connecting seat 13 and is connected with eccentric shaft 24, motor 21 drives eccentric shaft 24 to rotate through transmission mechanism 22, eccentric shaft 24 drives upper rocker 1 reciprocating swing through U-shaped connecting block 23 and the rocker connecting seat 13 fixed, the transmission mechanism 22 is belt transmission mechanism.
[0015] To ensure that upper rocker 1 swing flexible and light, improve service life, the shaft hole of bottom bar 31 is installed with the shaft sleeve 32 that is rotatably cooperated with pin shaft 4.
[0016] To facilitate shell installation, the bottom bar 31 is equipped with mounting hole for installing suction cup foot pad 5.
[0017] When different sizes and styles are selected, such as Fig. 1As shown, only the rocker 14 and the bottom bar 31 with different lengths are selected; then the left and right rocker connecting plates 11, 12 are correspondingly installed on the two rockers 14, and the left and right bottom connecting plates 33, 35 and the motor fixing plate 34 are correspondingly installed on the lower bottom surface of the two bottom bars 31, so as to complete the assembly of the upper rocker 1 and the lower bottom frame 3. Then the driving assembly 2 is correspondingly installed on the motor fixing plate 34 and the left bottom connecting plate 33 or the right bottom connecting plate 35, the position of the motor 21 and the tightness of the belt are adjusted, and then the fixing screws of the motor 21 and the motor fixing plate 34 are fastened. The assembled upper rocker 1 is correspondingly installed on the shaft sleeve 32 of the bottom bar 31 through the pin shaft 4, and the U-shaped connecting block 23 is fixed on the rocker connecting seat 13, so as to complete the assembly of the whole movement, such as Fig. 3 As shown.
[0018] When different power motors 21 are selected, only the positions of the left and right waist holes and the front and rear waist holes on the motor fixing plate 34 need to be adjusted during installation, so as to solve the problem of different installation sizes.
[0019] After the above structure is adopted, only the rocker 14 and the bottom bar 31 with different lengths and the motor 21 with different power are selected, so as to assemble the movement of the fitness machine with different specifications and models, the factory production has good universality, the spare parts and the occupied funds are less, the warehouse fine management is beneficial, and the production cost can be greatly reduced.
[0020] The above is only one embodiment of the present application, and does not limit the present application in any form. Simple modifications, equivalent changes or modifications made without departing from the technical scheme of the present application all fall within the protection scope of the present application.
Claims
1. A modular bodybuilding machine mechanism, comprising an upper rocker (1), a drive assembly (2), and a lower base frame (3), characterized in that: The lower base frame (3) includes two base rods (31), left and right base frame connecting plates (33, 35), and a motor fixing plate (34). The left and right base frame connecting plates (33, 35) are fixed to the lower bottom surfaces on both sides of the two base rods (31). The motor fixing plate (34) is centered on the lower bottom surface of the two base rods (31) with adjustable left and right positions. The upper rocker frame (1) includes two rocker arms (14) and left and right rocker frame connecting plates (11, 12). The left and right rocker frame connecting plates (11, 12) are fixed to the upper surfaces of the two rocker arms (14). A rocker frame connecting seat (13) is provided on the left rocker frame connecting plate (11) or the right rocker frame connecting plate (12). A U-shaped rocker joint (15) is provided on each of the two rocker arms (14) and is hinged to the shaft holes of the two base rods (31) through a pin (4). The drive assembly (2) is installed on the lower base frame (3) and drives the upper rocker frame (1) to rock.
2. The assembled fitness machine mechanism according to claim 1, characterized in that: The drive assembly (2) includes a motor (21), a transmission mechanism (22), an eccentric wheel axle seat (25), an eccentric wheel axle (24), and a U-shaped connecting block (23). The motor (21) is mounted on the motor fixing plate (34) with adjustable front and rear positions. The eccentric wheel axle seat (25) is fixed on the left base frame connecting plate (33) or the right base frame connecting plate (35). The eccentric wheel axle (24) is rotatably mounted on the eccentric wheel axle seat (25). The U-shaped connecting block (23) is fixed on the rocker arm connecting seat (13) and connected to the eccentric wheel axle (24). The motor (21) drives the eccentric wheel axle (24) to rotate through the transmission mechanism (22). The eccentric wheel axle (24) drives the upper rocker arm (1) to swing back and forth through the U-shaped connecting block (23) and the fixed rocker arm connecting seat (13).
3. The assembled fitness machine mechanism according to claim 1, characterized in that: A bushing (32) that rotatably engages with the pin (4) is installed on the shaft hole of the bottom rod (31).
4. The assembled fitness machine mechanism according to claim 2 or 3, characterized in that: The base rod (31) is provided with mounting holes for mounting suction cup feet (5).