Arm exerciser based on non-Newtonian fluid effect
By introducing non-Newtonian fluid effects into fitness equipment and utilizing shear thickening properties, linear and rotary damping cylinders are designed to achieve uniform exercise during force application and recovery. This solves the problems of limited exercise modes and insufficient safety of existing fitness equipment, providing multiple exercise modes and avoiding injuries.
Patent Information
- Application Number
- CN202422809494.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Existing fitness equipment often results in users exerting great force and for a long time during exercise, but exerting little force and for a short time when returning to the starting position. This can lead to energy release during the return phase, potentially causing injury. Furthermore, the exercise mode is monotonous and lacks safety.
The arm exerciser uses a non-Newtonian fluid effect-based system. By filling the linear and rotary damping cylinders with non-Newtonian fluid materials, and utilizing the shear thickening properties, an indirect relationship is achieved between "human-machine-non-Newtonian fluid material-machine-human". This provides a continuous and uniform damping force, and both the force application and recovery processes serve an exercise function, avoiding the instantaneous release of energy.
It effectively exercises arm muscles during both the exertion and recovery phases, preventing injury. It offers multiple training modes covering the upper arm, forearm, shoulder joint, and wrist joint, improving safety and training effectiveness.
Smart Images
Figure CN223654376U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to body -building apparatus technical field, concretely relates to an arm exerciser based on non newtonian fluid effect. BACKGROUND
[0002] The existing body-building apparatus is generally through changing gravity, elasticity or friction coefficient to adjust the size of user output intensity, but no matter what kind of movement principle and mode is adopted, it is a direct action relation between person and apparatus, that is, the action of person is on apparatus, and the feedback of apparatus is immediately obtained. This kind of direct relation of " person-apparatus-person" is generally present in the existing body-building apparatus, and the exercise mode is often to use force to overcome the gravity, elasticity and friction of apparatus to reach the exercise purpose, then the force is collected and the apparatus is reset, the intensity of user in the process of using force is big, and the time is long, and the intensity of user in the process of collecting force is small, and the time is short, the energy of apparatus is slowly accumulated in the process of using force, and the accumulated energy is instantaneously released in the process of collecting force. The deficiency is that the reset time is short, does not play the exercise role, and the instantaneously released energy can cause the injury of user.
[0003] Based on this, the present application provides an arm exerciser based on non newtonian fluid effect, which changes the direct relation of " person-apparatus-person" of traditional to an indirect relation of " person-apparatus-non newtonian fluid material-apparatus-person", the indirect relation makes the arm exerciser play the exercise role in the process of using force and resetting, and can solve the safety problem. CONTENT OF UTILITY MODEL
[0004] In view of the deficiency of prior art, the technical problem to be solved by the utility model is to provide an arm exerciser based on non newtonian fluid effect.
[0005] The utility model solves the technical problem by adopting the following technical scheme:
[0006] An arm exerciser based on non newtonian fluid effect, characterized in that the arm exerciser comprises a linear damping cylinder, a plunger hole plate, a first end handle, a shaft, a rotary damping cylinder, a strip rotary hole plate and a second end handle.
[0007] The middle part of the rotary damping cylinder is provided with a partition, the inner cavity of the rotary damping cylinder is divided into a first cavity and a second cavity, the second cavity is filled with non newtonian fluid material, a part of the linear damping cylinder is inserted in the first cavity of the rotary damping cylinder, another part of the linear damping cylinder is stretched out of the rotary damping cylinder, the linear damping cylinder can reciprocate along the axial direction in the first cavity, and the linear damping cylinder is filled with non newtonian fluid material.
[0008] The shaft rod is simultaneously inserted into the second cavities of the linear damping cylinder and the rotary damping cylinder, and the shaft rod can reciprocate along the axial direction or rotate along the circumferential direction; one end of the shaft rod located in the linear damping cylinder is provided with a plunger hole plate, and the periphery of the plunger hole plate is in contact with the inner wall of the linear damping cylinder; the strip-shaped rotary hole plate is located in the second cavity of the rotary damping cylinder and is fixedly connected with the shaft rod on one side, and the free side of the strip-shaped rotary hole plate is in contact with the inner wall of the rotary damping cylinder; the first end handle is fixedly sleeved on the part of the linear damping cylinder extending out of the rotary damping cylinder, the second end handle is rotatably sleeved on the corresponding end of the second cavity of the rotary damping cylinder, and the second end handle is fixedly connected with the shaft rod, so that the rotation of the second end handle can realize the rotation of the shaft rod.
[0009] Further, the arm exerciser further comprises a limiting screw, and the linear damping cylinder is provided with a guide groove in the axial direction on the side wall located in the first cavity of the rotary damping cylinder, one end of the limiting screw is inserted into the guide groove through the rotary damping cylinder, and the limiting screw can reciprocate in the guide groove.
[0010] Further, one end of the shaft rod penetrates through the partition of the middle part of the rotary damping cylinder and the end of the linear damping cylinder located in the first cavity, and a sealing ring is arranged at the contact position of the shaft rod and the partition of the rotary damping cylinder and the end of the linear damping cylinder.
[0011] Further, the other end of the shaft rod penetrates through the cylinder cover of the rotary damping cylinder and is connected with the second end handle, and a sealing ring is arranged at the contact position of the shaft rod and the cylinder cover of the rotary damping cylinder.
[0012] Further, the non-Newtonian fluid material is a shear thickening liquid, and the filling rate in the linear damping cylinder and the second cavity of the rotary damping cylinder is 80%.
[0013] Compared with the prior art, the arm exerciser has the following beneficial effects:
[0014] The arm exerciser utilizes the characteristics of the non-Newtonian fluid effect (shear thickening) that "meets strong and weak", and only the continuous and uniform force of the user can complete the entire action, so that the exercise effect is better; due to the non-Newtonian fluid effect (shear thickening), the force collecting action (i.e. the reset action) is no longer a short process without force, but is a reverse movement same as the force action, so that the exercise effect is achieved in the force collecting process. Due to the buffering effect of the non-Newtonian fluid material, the energy accumulated in the reset process is no longer released instantaneously, so that the damage to the user is avoided, and the use safety is ensured. The exerciser has three modes of pushing and pulling, twisting and pushing and pulling and twisting, and can achieve the purpose of exercising different muscles and joints of the arm. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a cross-sectional view of the arm exerciser along the axial direction.
[0016] Figure 2 For Figure 1 Cross-sectional view at position A-A;
[0017] Figure 3 For Figure 1 Cross-sectional view at position B-B;
[0018] Figure 4 For Figure 1 Cross-sectional view at position C-C;
[0019] Figure 5 For
[0020] In the figure, 1, straight line damping cylinder cover; 2, straight line damping cylinder; 3, fastening nut; 4, plunger hole plate; 5, first end handle; 6, shaft; 7, limit screw; 8, guide groove; 9, rotary damping cylinder; 10, cylinder body sealing ring; 11, strip rotary hole plate; 12, second end handle; 13, rotary damping cylinder cover; 14, cylinder cover sealing ring; 15, fastening screw. DETAILED DESCRIPTION
[0021] The specific embodiments are described below in conjunction with the accompanying drawings, which are used to specifically introduce the technical scheme of the utility model, and do not limit the protection scope of the application.
[0022] The utility model provides a kind of arm exerciser based on non-newtonian fluid effect (referred to as arm exerciser, see Figures 1-5 ), including straight line damping cylinder 2, plunger hole plate 4, first end handle 5, shaft 6, rotary damping cylinder 9, strip rotary hole plate 11 and second end handle 12;
[0023] The middle part of rotary damping cylinder 9 is provided with a partition, which divides the inner cavity of rotary damping cylinder 9 into first cavity and second cavity, non-newtonian fluid material is filled in second cavity, and rotary damping cylinder cover 13 is arranged at the end of second cavity;Part of straight line damping cylinder 2 is inserted in the first cavity of rotary damping cylinder 9, and the other part extends out of rotary damping cylinder 9, and straight line damping cylinder 2 can reciprocate in the first cavity along the axial direction, and the end of straight line damping cylinder 2 extending out of rotary damping cylinder 9 is provided with straight line damping cylinder cover 1, and non-newtonian fluid material is filled in straight line damping cylinder 2;
[0024] One end of the shaft 6 penetrates through the rotary damping cylinder cover 13, the partition in the middle of the rotary damping cylinder 9, and the end of the linear damping cylinder 2 in the first cavity and extends into the linear damping cylinder 2, so that the shaft 6 is simultaneously inserted into the linear damping cylinder 2 and the second cavity, the shaft 6 can reciprocate along the axial direction or rotate along the circumferential direction in the linear damping cylinder 2 and the second cavity, and the reciprocating direction of the shaft 6 is opposite to that of the linear damping cylinder 2; the end of the shaft 6 in the linear damping cylinder 2 is provided with the plunger hole plate 4, and the plunger hole plate 4 is fixed to the shaft 6 through the fastening nut 3, the periphery of the plunger hole plate 4 is in close contact with the inner wall of the linear damping cylinder 2 but does not affect the movement of the shaft 6, the inner cavity of the linear damping cylinder 2 is divided into left and right parts through the plunger hole plate 4, and the non-Newtonian fluid material reciprocates between the left and right parts of the linear damping cylinder 2 through the holes in the plunger hole plate 4 during the reciprocating movement of the linear damping cylinder 2 and the shaft 6 along the axial direction; the contact position between the shaft 6 and the end of the linear damping cylinder 2 is provided with the cylinder sealing ring 10, and the contact position between the shaft 6 and the rotary damping cylinder cover 13 is provided with the cylinder cover sealing ring 14, so as to prevent the non-Newtonian fluid material from flowing out;
[0025] The strip-shaped rotary hole plate 11 is located in the second cavity of the rotary damping cylinder 9 and is fixed to one side of the shaft 6, the strip-shaped rotary hole plate 11 rotates together with the shaft 6, the free side of the strip-shaped rotary hole plate 11 is in close contact with the inner wall of the rotary damping cylinder 9 but does not affect the rotation, the second cavity of the rotary damping cylinder 9 is divided into two parts through the strip-shaped rotary hole plate 11, and the non-Newtonian fluid material in the second cavity reciprocates on both sides of the strip-shaped rotary hole plate 11 through the holes in the strip-shaped rotary hole plate 11; the first end handle 5 is fixedly sleeved on the part of the linear damping cylinder 2 extending out of the rotary damping cylinder 9, the second end handle 12 is rotatably sleeved on the corresponding end of the second cavity of the rotary damping cylinder 9, and the second end handle 12 is fixed to the shaft 6 through the fastening screw 15, so that the shaft 6 rotates together with the second end handle 12.
[0026] The arm exerciser further comprises a limiting screw 7, the linear damping cylinder 2 is provided with an axial guide groove 8 on the side wall in the rotary damping cylinder 9, the limiting screw 7 is inserted into the guide groove 8 through the threaded hole in the rotary damping cylinder 9, the limiting screw 7 can reciprocate in the guide groove 8, and the positioning and guiding of the linear damping cylinder 2 during the reciprocating movement are realized through the limiting screw 7.
[0027] The non-Newtonian fluid material is a shear thickening liquid, and the embodiment adopts nano-silicon dioxide filled polyethylene glycol 200, wherein the nano-silicon dioxide (SiO2) is a non-toxic, odorless white powder, and the polyethylene glycol 200 (PEG 200) is a non-toxic, non-irritating liquid with stable properties at room temperature. The filling amount of the nano-silicon dioxide is about 15-20 wt%, and the shear thickening liquid in this ratio is slightly viscous, has a suitable thickening critical value while appropriately increasing the friction, and can play a buffering role. The filling rate of the non-Newtonian fluid material in the linear damping cylinder 2 and the second cavity of the rotary damping cylinder 9 is 80%, so as to ensure that the corresponding components have a movement space.
[0028] The working principle and working process of the utility model are as follows:
[0029] The arm exerciser is divided into three modes of push-pull, torsion, and push-pull torsion combination.
[0030] Push-pull mode: both hands tightly hold the first end handle 5 and the second end handle 12 and exert an axial and outward pulling force, so that the linear damping cylinder 2 and the shaft rod 6 move towards both sides, and in the movement process, the non-Newtonian fluid material located on the right side of the plunger hole plate 4 in the linear damping cylinder 2 is extruded and released to the left side through the holes on the plunger hole plate 4; when both hands exert an axial and inward pushing force, the linear damping cylinder 2 and the shaft rod 6 move towards the middle, and the non-Newtonian fluid material located on the left side of the plunger hole plate 4 in the linear damping cylinder 2 is extruded and released to the right side through the holes on the plunger hole plate 4; in the movement process of the linear damping cylinder 2 and the shaft rod 6, the non-Newtonian fluid material provides a damping force opposite to the arm force direction for the user, so as to achieve the purpose of exercising the arm, and at the same time, plays a buffering role, so as to avoid the accumulated energy from being released instantaneously and causing the user to be injured.
[0031] Torsion mode: both hands tightly hold the first end handle 5 and the second end handle 12, and the hand holding the second end handle 12 exerts a torsional force around the circumference, so that the second end handle 12 rotates around the rotary damping cylinder 9 and drives the shaft rod 6 to rotate together, and in the rotation process of the shaft rod 6, the non-Newtonian fluid material in the second cavity of the rotary damping cylinder 9 is released from one side of the strip-shaped rotary hole plate 11 to the other side; when a reverse torsional force is exerted on the second end handle 12, the shaft rod 6 rotates reversely, and the non-Newtonian fluid material in the second cavity of the rotary damping cylinder 9 flows back; the non-Newtonian fluid material in the second cavity of the rotary damping cylinder 9 provides a damping force opposite to the direction of the torsional force for the user, so as to achieve the purpose of exercising the arm.
[0032] The push-pull-torsion combined mode is to simultaneously push-pull and twist, which is not described herein again. Through the above three modes of push-pull, twist and push-pull-torsion combined, different muscles and joints of the arm can be exercised, covering the upper arm muscle group, the forearm muscle group, the palm muscle group, the shoulder joint, the elbow joint and the wrist joint, and the non-Newtonian fluid material plays a buffering role in the resetting process, avoiding damage to the arm.
[0033] The utility model is not described in the prior art.
Claims
1. An arm exerciser based on non-Newtonian fluid effect, characterized by, The arm exerciser comprises a linear damping cylinder, a plunger hole plate, a first end handle, a shaft, a rotary damping cylinder, a strip rotary hole plate and a second end handle; The middle part of the rotary damping cylinder is provided with a partition, which divides the inner cavity of the rotary damping cylinder into a first cavity and a second cavity, and the second cavity is filled with a non-Newtonian fluid material; a part of the linear damping cylinder is inserted into the first cavity of the rotary damping cylinder, and the other part extends out of the rotary damping cylinder, the linear damping cylinder can reciprocate in the first cavity along the axial direction, and the linear damping cylinder is filled with a non-Newtonian fluid material; The shaft is simultaneously inserted into the linear damping cylinder and the second cavity of the rotary damping cylinder, and the shaft can reciprocate along the axial direction or rotate along the circumferential direction; one end of the shaft located in the linear damping cylinder is provided with the plunger hole plate, and the periphery of the plunger hole plate is in contact with the inner wall of the linear damping cylinder; the strip rotary hole plate is located in the second cavity of the rotary damping cylinder and is fixedly connected with the shaft on one side, and the free side of the strip rotary hole plate is in contact with the inner wall of the rotary damping cylinder; the first end handle is fixedly sleeved on the part of the linear damping cylinder extending out of the rotary damping cylinder, and the second end handle is rotatably sleeved on the corresponding end of the second cavity of the rotary damping cylinder, and the second end handle is fixedly connected with the shaft, and the rotation of the second end handle realizes the rotation of the shaft.
2. The non-Newtonian fluid effect based arm exerciser according to claim 1, wherein, The arm exerciser further comprises a limiting screw; the side wall of the linear damping cylinder located in the first cavity of the rotary damping cylinder is provided with a guide groove along the axial direction, one end of the limiting screw is inserted into the guide groove through the rotary damping cylinder, and the limiting screw can reciprocate in the guide groove.
3. Arm exerciser based on non-Newtonian fluid effects according to claim 1 or 2, characterized in that, One end of the shaft penetrates through the partition of the rotary damping cylinder and the end of the linear damping cylinder located in the first cavity, and a sealing ring is arranged at the contact position of the shaft and the partition of the rotary damping cylinder and the end of the linear damping cylinder.
4. The non-Newtonian fluid effect based arm exerciser according to claim 3, characterized in that, The other end of the shaft penetrates through the cylinder cover of the rotary damping cylinder and is connected with the second end handle, and a sealing ring is arranged at the contact position of the shaft and the cylinder cover of the rotary damping cylinder.
5. The non-Newtonian fluid effect based arm exerciser of claim 1, wherein, The non-Newtonian fluid material is a shear thickening liquid, and the filling rate in the linear damping cylinder and the second cavity of the rotary damping cylinder is 80%.