Static and dynamic balancing tensile testing device for fitness equipment

Abstract

The present application relates to the technical field of tension test, and discloses a static and dynamic balance tension testing device for fitness equipment, which comprises two weight blocks sliding rails and two swing handle bars located between the two weight blocks sliding rails, and a plurality of weight blocks in a stacked manner are arranged in the weight blocks sliding rails. The present application relies on arm power to drive the weight blocks to ascend and descend, thereby achieving dynamic and static balance. If it is only a wire, dynamic and static balance feedback cannot be achieved. Once the personnel appear fatigue phenomenon when returning to the original position, the arm will be pulled by the weight blocks, and the first pull rope and the second pull rope can effectively feed back the pulling force of the first pull rope driven by the weight blocks to the second pull rope through the connecting part, so that the first pull rope and the second pull rope return to the dynamic and static balance state, thereby avoiding the problem that the weight blocks pull the arm of the personnel when the personnel are in fatigue, and further causing muscle strain.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tension test, in particular to a static and dynamic balance tension test device for fitness equipment. BACKGROUND

[0002] Referring to the patent document with the application number "CN201810459964.0" and the name "sports equipment swing angle inner limiting device", the technical problem to be solved in the application document is that the impact caused by limiting can easily damage the sports equipment, so a reset type limiting strip is used to limit when the swing amplitude of the sports equipment reaches the set position. However, this method often has the following problems:

[0003] Although the limiting device can play a limiting role during exercise, it cannot achieve dynamic and static balance in the state. During the use of the butterfly chest expansion trainer, the arm force is relied on to drive the weight block to lift and achieve dynamic and static balance. During the use of the device, there will be no problem. Once the person is weak during homing, the arm will be pulled, which will destroy the corresponding dynamic and static balance. The limiting device in the prior art cannot achieve dynamic and static balance in this state, which can easily cause the weight block to pull the person's arm and cause muscle strain when the person is weak.

[0004] Therefore, we design a static and dynamic balance tension test device for fitness equipment. SUMMARY

[0005] The purpose of the present application is to solve the problem of muscle strain caused by the arm being pulled when the person is weak during homing. A static and dynamic balance tension test device for fitness equipment is provided.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0007] A static and dynamic balance tension test device for fitness equipment, comprising two weight block sliding rails and two swing handles located between the two weight block sliding rails, the weight block sliding rail is provided with a plurality of stacked weight blocks, the top of the two weight block sliding rails is provided with a top frame connected with the swing handle, the swing handle swings on the top frame, the weight block sliding rail is provided with a weight selection positioner for fixing the weight block, the swing handle and the weight selection positioner are connected by a tension rope group, the tension rope group comprises a first tension rope and a second tension rope, the top frame is provided with a connecting portion for connecting the first tension rope and the second tension rope, and the first tension rope is provided with a stop portion for stopping the first tension rope.

[0008] Preferably, the connecting portion comprises:

[0009] The transmission box body and two transmission shafts are symmetrically arranged on the inner wall of the transmission box body, and the transmission box body is arranged on the top frame;

[0010] The first and second wire reels are rotated in the transmission box body through the transmission shafts, the first pull rope is wound on the first wire reel, and the second pull rope is wound on the second wire reel.

[0011] The engagement assembly includes a first bevel gear and a second bevel gear, and the first bevel gear and the second bevel gear are engaged in transmission.

[0012] Preferably, the connecting part further comprises:

[0013] The first and third rotating rods are in transmission with the first and second wire reels through the engagement assembly, one end of the second rotating rod is coaxially fixed with the first rotating rod, and the other end is coaxially inserted into the third rotating rod.

[0014] The third rotating rod is provided with an inner cavity, and the end of the second rotating rod inserted into the inner cavity is provided with an electromagnetic attraction part.

[0015] Preferably, the electromagnetic attraction part comprises:

[0016] The rotating plate is telescopic at the end of the second rotating rod through the cross plate and the cross groove, the positioning plate is fixed in the inner cavity, and the rotating plate abuts against the positioning plate, and the material of the rotating plate is metal iron.

[0017] Preferably, the electromagnetic attraction part further comprises:

[0018] The star-shaped plate is fixed in the inner cavity, and the electromagnetic generator is coaxially fixed on the star-shaped plate.

[0019] The reset spring is fixed at both ends with the rotating plate and the star-shaped plate, and the reset spring is sleeved on the outer sidewall of the electromagnetic generator.

[0020] Preferably, the star-shaped plate comprises a plurality of connection boxes arranged in a circle, the connection box is provided with a sliding cavity, the sliding cavity is provided with a counterweight and a metal rod, the counterweight is connected with the metal rod through a connecting rod, and the counterweight slides in the sliding cavity.

[0021] The adjacent two star-shaped plates are connected with a communication wire inserted into the sliding cavity, and the communication wire is located at one end of the connection box away from the electromagnetic generator.

[0022] Preferably, the stasis part comprises:

[0023] The wire sleeve is provided with a rectangular hole, and the first pull rope is coaxially inserted through the wire sleeve.

[0024] The first and second clamping plates are provided with a plurality of matching and first-pulley-stopping engaging teeth at opposite ends.

[0025] The present application has the following advantages:

[0026] 1、The present application relies on the arm force to drive the weight block to ascend and descend, thereby achieving dynamic and static balance. If there is only one line, dynamic and static balance feedback cannot be achieved. Once the personnel appear weak when returning to the home position, the arm will be pulled by the weight block, and the first and second pulleys can effectively feedback the pulling force of the first pulley driven by the weight block to the second pulley through the connecting part, so that the first and second pulleys return to the dynamic and static balance state, thereby avoiding the problem that the weight block pulls the arm of the person when the person is weak, and further causing muscle strain.

[0027] 2、The rotation of the second rotating rod drives the rotating plate to move, which pushes the positioning plate to drive the third rotating rod to rotate. Once the rotating plate is separated from the second rotating rod, the first and third rotating rods become independent rotating units, thereby avoiding the problem that the weight block pulls the arm of the person when the person is weak, and further causing muscle strain. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A structural schematic view of a static and dynamic balance tension testing device for fitness equipment is provided.

[0029] Figure 2 An internal structure schematic view of a transmission box in a static and dynamic balance tension testing device for fitness equipment is provided.

[0030] Figure 3 A structural schematic view of an electromagnetic attraction part in a static and dynamic balance tension testing device for fitness equipment is provided.

[0031] Figure 4 An internal structure schematic view of a sliding cavity in a static and dynamic balance tension testing device for fitness equipment is provided.

[0032] Figure 5 An internal structure schematic view of a line sleeve in a static and dynamic balance tension testing device for fitness equipment is provided.

[0033] In the figure: 1, the weight block slide rail; 2, the weight block; 3, the weight selection positioner; 4, the top frame; 5, the swing handle; 6, the tension rope set; 61, the first tension rope; 62, the second tension rope; 7, the transmission box; 8, the transmission shaft; 9, the first cable reel; 10, the second cable reel; 11, the first bevel gear; 12, the second bevel gear; 13, the first rotating rod; 14, the second rotating rod; 15, the third rotating rod; 16, the rotating plate; 17, the positioning plate; 18, the star plate; 19, the electromagnetic generator; 20, the communication wire; 21, the reset spring; 22, the sliding cavity; 23, the counterweight; 24, the connecting rod; 25, the metal rod; 26, the wire sleeve; 27, the first clamping plate; 28, the second clamping plate. DETAILED DESCRIPTION

[0034] REFERENCE Figures 1-5 A static and dynamic balance tension testing device for fitness equipment, comprising two weight block slide rails 1 and two swing handles 5 located between the two weight block slide rails 1, wherein the user needs to use both arms to move the two swing handles 5, the swing handles 5 swing on the top frame 4, and then the weight block 2 can be lifted and lowered through the tension rope set 6, thereby achieving the exercise effect.

[0035] A plurality of weight blocks 2 in a stacked manner are arranged in the weight block slide rail 1, and a top frame 4 connected with the swing handle 5 is arranged at the top of the two weight block slide rails 1, and the weight block slide rail 1 is slidably provided with a weight selection positioner 3 for fixing the weight block 2, wherein the weight selection positioner 3 adopts a bolt positioning mode to select the number of weight blocks 2 to be exercised, and the weight selection positioner 3 is a prior art and will not be described in detail here.

[0036] The tension rope set 6 is connected between the swing handle 5 and the weight selection positioner 3, wherein the movement of the swing handle 5 is different from the lifting and lowering of the weight block 2 in direction, and a fixed pulley transmission mode is adopted to select or change the force direction.

[0037] The tension rope set 6 includes a first tension rope 61 and a second tension rope 62, and it is necessary to note that the first tension rope 61 and the second tension rope 62 are used to replace the traditional setting of one rope, which can effectively analyze the force state in the tension rope set 6 and can act on the first tension rope 61, thereby solving the problem of pulling and tearing of the arm caused by the weight block 2 when the person is tired, thereby avoiding the problem of muscle strain.

[0038] The top frame 4 is provided with a connecting portion for connecting the first pull rope 61 and the second pull rope 62. The first pull rope 61 and the second pull rope 62 can effectively provide feedback. During the use of the butterfly chest expander, the arms are used to drive the weight block 2 to move up and down, so as to achieve dynamic and static balance. If only one rope is used, the dynamic and static balance feedback cannot be achieved. When the user is tired, the arms are pulled by the weight block 2, and the first pull rope 61 and the second pull rope 62 can effectively provide feedback to the second pull rope 62 through the connecting portion, so that the first pull rope 61 and the second pull rope 62 return to the dynamic and static balance state, thereby avoiding the problem that the arms are pulled by the weight block 2 when the user is tired, and muscle injury is caused.

[0039] The connecting portion comprises a transmission box 7 and two transmission shafts 8. The two transmission shafts 8 are symmetrically arranged on the inner wall of the transmission box 7. The transmission box 7 is arranged on the top frame 4. The transmission box 7 provides a space for feedback adjustment between the first pull rope 61 and the second pull rope 62.

[0040] The connecting portion further comprises a first wire reel 9 and a second wire reel 10. The first wire reel 9 and the second wire reel 10 are rotatable in the transmission box 7 through the transmission shaft 8. The first pull rope 61 is wound on the first wire reel 9, and the second pull rope 62 is wound on the second wire reel 10. The first wire reel 9 and the second wire reel 10 rotate in the same direction, so that the movement direction of the second pull rope 62 driven by the swing handle 5 is consistent with the movement direction of the first pull rope 61 driven by the weight block 2.

[0041] The connecting portion further comprises a meshing assembly. The meshing assembly comprises a first bevel gear 11 and a second bevel gear 12. The first bevel gear 11 and the second bevel gear 12 are in meshing transmission. The rotation of the swing handle 5 drives the second wire reel 10 to rotate through the second pull rope 62, and then drives the third rotating rod 15 to rotate through the meshing assembly. The rotating third rotating rod 15 drives the first wire reel 9 to rotate in the same direction through another meshing assembly, and finally drives the first pull rope 61 and the second pull rope 62 to move in the same direction.

[0042] Referring to Figure 3 The connecting portion further comprises a first rotating rod 13, a second rotating rod 14 and a third rotating rod 15. The first rotating rod 13 and the third rotating rod 15 are in transmission with the first wire reel 9 and the second wire reel 10 through the meshing assembly. One end of the second rotating rod 14 is fixedly connected with the first rotating rod 13 in the same axis, and the other end is inserted into the third rotating rod 15 in the same axis. When the first rotating rod 13 rotates, the second rotating rod 14 rotates in the third rotating rod 15.

[0043] The third rotating rod 15 is internally provided with a cavity, and the second rotating rod 14 extending into the cavity is provided with an electromagnetic attraction part at one end, which can effectively open the electromagnetic attraction part according to the sudden rapid rotation of the third rotating rod 15 due to the broken dynamic-static balance.

[0044] The electromagnetic attraction part comprises a rotating plate 16 and a plurality of positioning plates 17. The rotating plate 16 is telescopic at the end of the second rotating rod 14 through a cross plate and a cross groove. The positioning plates 17 are fixed in the cavity, and the rotating plate 16 abuts against the positioning plates 17. The rotating plate 16 is made of metal iron. This arrangement can ensure that the rotating plate 16 originally telescopic slides with the end of the second rotating rod 14, and then is attracted by the electromagnetic generator 19 to make the rotating plate 16 separate from the second rotating rod 14. The original rotation of the second rotating rod 14 drives the rotating plate 16 to move, which pushes the positioning plates 17 to drive the third rotating rod 15 to rotate. Once the rotating plate 16 separates from the second rotating rod 14, the first rotating rod 13 and the third rotating rod 15 become independent rotating units, which avoids the problem of muscle strain caused by the pulling of the weight block 2 on the arm of the person when the person is tired.

[0045] The electromagnetic attraction part further comprises a star-shaped plate 18 fixed in the cavity, and the electromagnetic generator 19 is coaxially fixed on the star-shaped plate 18. The electromagnetic attraction part further comprises a return spring 21, the ends of which are fixed to the rotating plate 16 and the star-shaped plate 18 respectively, and the return spring 21 is sleeved on the outer wall of the electromagnetic generator 19. In this way, the return spring 21 can be compressed to store energy when the electromagnetic generator 19 attracts the rotating plate 16. When the star-shaped plate 18 no longer rotates rapidly, the electromagnetic generator 19 is powered off at this time, and the rotating plate 16 is reconnected to the end of the second rotating rod 14 under the action of the return spring 21.

[0046] Referring to Figure 4 As shown, the star-shaped plate 18 comprises a plurality of circumferentially arranged connecting boxes, each of which is provided with a sliding cavity 22. The sliding cavity 22 is provided with a counterweight 23 and a metal rod 25. The counterweight 23 is connected to the metal rod 25 through a connecting rod 24. The counterweight 23 slides in the sliding cavity 22. When normal exercise is performed, the third rotating rod 15 rotates at a slow and uniform speed. When the person is tired, the swinging handle 5 cannot be held at this time, the dynamic-static balance is broken at this time, and the third rotating rod 15 rotates rapidly at this time, thereby making the counterweight 23 in the sliding cavity 22 perform centrifugal motion;

[0047] Two adjacent star plates 18 are connected with a communication wire 20 extending into the sliding cavity 22, the communication wire 20 is located at the end of the connecting box far away from the electromagnetic generator 19, when the counterweight 23 does the centrifugal movement, the metal rod 25 will be pushed to the end of the connecting box far away from the electromagnetic generator 19, and the whole annular circuit is connected, the annular circuit is connected with the electromagnetic generator 19 in series, so that the electromagnetic generator 19 is connected, the electromagnetic generator 19 is the prior art, and will not be described in detail here.

[0048] A stop part for stopping the first pull rope 61 is sleeved on the first pull rope 61, the stop part comprises a wire sleeve 26, a rectangular hole is formed in the wire sleeve 26, and the first pull rope 61 coaxially penetrates the wire sleeve 26, the stop part further comprises a first clamping plate 27 and a second clamping plate 28, a plurality of engagement teeth adapted to stop the first pull rope 61 are arranged on opposite ends of the first clamping plate 27 and the second clamping plate 28, wherein when the star plate 18 is connected, the first clamping plate 27 and the second clamping plate 28 are driven by an external electric control device to move close to each other, and the first pull rope 61 is clamped, so that the continuous sliding of the first pull rope 61 is prevented, thereby achieving the effect of braking.

[0049] The working principle of the present application is as follows: the user needs to use two arms to drive two swing handles 5 to move, the swing handles 5 swing on the top frame 4, and then the weight block 2 is lifted by the tension rope set 6, thereby achieving the exercise effect. In the use process of the butterfly chest expansion trainer, the weight block 2 is lifted by the arm force, thereby achieving dynamic and static balance. If it is only a wire, dynamic and static balance feedback cannot be achieved. Once the person appears fatigue phenomenon during homing, the arm will be pulled by the weight block 2, and the first pull rope 61 and the second pull rope 62 can effectively feedback the pulling force of the first pull rope 61 to the second pull rope 62 through the connecting part under the action of the weight block 2, so that the first pull rope 61 and the second pull rope 62 return to the dynamic and static balance state. The rotation of the original second rotating rod 14 drives the rotating plate 16 to move, which pushes the positioning plate 17 to drive the third rotating rod 15 to rotate. Once the rotating plate 16 is separated from the second rotating rod 14, the first rotating rod 13 and the third rotating rod 15 become independent rotating units, thereby avoiding the problem that the arm is pulled by the weight block 2 when the person is tired, and the muscle is also injured.

[0050] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A static and dynamic balance tensile testing device for fitness equipment, comprising two weight block sliding rails (1) and two swing handle bars (5) located between the two weight block sliding rails (1), the weight block sliding rails (1) are provided with a plurality of stacked weight blocks (2), characterized in that, Two said weight block slide rail (1) top provided with top frame (4) connected with swing handle (5), the swing handle (5) swing on top frame (4), the weight block slide rail (1) on the sliding for the fixed weight block (2) fixed amount positioner (3), the swing handle (5) and fixed amount positioner (3) between the connection has a tension rope group (6), the tension rope group (6) includes first pull rope (61) and second pull rope (62), the top frame (4) is equipped with for connecting first pull rope (61) and second pull rope (62) connecting portion, the connecting portion includes: Transmission box (7) and two transmission shaft (8), two transmission shaft (8) symmetry is provided in transmission box (7) inner wall, the transmission box (7) is arranged on top frame (4); First wire reel (9) and second wire reel (10), the first wire reel (9) and second wire reel (10) are rotated in transmission box (7) through transmission shaft (8), the first pull rope (61) is wound on first wire reel (9), and the second pull rope (62) is wound on second wire reel (10); Engagement assembly, the engagement assembly first bevel gear (11) and second bevel gear (12), the first bevel gear (11) and second bevel gear (12) mesh transmission, the connecting portion further includes: First rotating rod (13), second rotating rod (14) and third rotating rod (15), the first rotating rod (13) and third rotating rod (15) are driven through the engagement assembly and first wire reel (9) and second wire reel (10), one end of the second rotating rod (14) is coaxially fixed with the first rotating rod (13), and the other end is coaxially inserted into the third rotating rod (15); The third rotating rod (15) is provided with an inner cavity, and one end of the second rotating rod (14) extending into the inner cavity is provided with an electromagnetic attraction part, the electromagnetic attraction part includes: Rotating plate (16) and a plurality of positioning plates (17), the rotating plate (16) is telescopic through the cross plate and cross groove at the end of the second rotating rod (14), the positioning plate (17) is fixed in the inner cavity, and the rotating plate (16) is abutted with the positioning plate (17), the rotating plate (16) is made of metal iron, and the electromagnetic attraction part further includes: Star plate (18), the star plate (18) is fixed in the inner cavity, and the electromagnetic generator (19) is coaxially fixed on the star plate (18); Reset spring (21), the reset spring (21) is fixed at both ends with the rotating plate (16) and the star plate (18), and the reset spring (21) is sleeved on the outer side wall of the electromagnetic generator (19), the star plate (18) includes a plurality of connection boxes arranged in a circle, the connection box is provided with a sliding cavity (22), the sliding cavity (22) is provided with a counterweight (23) and a metal rod (25), the counterweight (23) is connected with the metal rod (25) through the connecting rod (24), and the counterweight (23) slides in the sliding cavity (22). Two adjacent star plates (18) are connected with a communication wire (20) extending into the sliding cavity (22), and the communication wire (20) is located at one end of the connection box away from the electromagnetic generator (19).

2. The static and dynamic balancing tensile testing device for exercise equipment according to claim 1, wherein A stop part for stopping the first pull rope (61) is sleeved on the first pull rope (61), and the stop part comprises: A wire sleeve (26) is provided with a rectangular hole, and the first pull rope (61) coaxially penetrates the wire sleeve (26); First and second clamping plates (27) and (28) are provided with a plurality of matching and engaging teeth for stopping the first pull rope (61) at opposite ends, and when the star plates (18) are connected, the first and second clamping plates (27) and (28) are driven by an external electric control device to move close to each other.

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