A detection device for fitness equipment components

Abstract

The present invention relates to the field of fitness equipment detection, specifically a detection device for fitness equipment components, including a detection box. Inside the left side of the detection box, a counterweight block connected to a steel wire rope is slid up and down through a guide post. Inside the detection box, a guide mechanism and a detection mechanism for guiding the steel wire rope are provided. The present invention uses the synergistic effect of a driving component and a locking component to realize the alternating operation of the uniform falling and free falling of the counterweight block, so as to alternately apply static load and impact load in a connected manner on the steel wire rope. This process does not require manual intervention and adjustment, and more realistically simulates the dynamic impact generated by sudden exertion or emergency braking during actual user use. The present invention clamps the steel wire rope through the clamping rope plate driven by the bidirectional screw in the segmented component, and can apply an impact load to the key steel wire rope segment by adjusting the screw to block the linkage plate frame, so as to independently and accurately evaluate the durability of the key section of the steel wire rope.

Description

Technical Field

[0001] The present invention relates to the field of fitness equipment detection, and specifically to a detection device for fitness equipment components. Background Art

[0002] As an important tool for modern fitness exercises, fitness equipment is widely used in scenarios such as homes and gyms. Among them, equipment with a traction counterweight component as the core structure, such as a cable tensiometer and a high pulley cable machine, provides adjustable resistance training for users through the coordinated action of a steel wire rope and a counterweight block. In such components, the steel wire rope, as a key component for transmitting loads, needs to withstand repeated tensile, frictional, and impact loads for a long time, and the lifting movement of the counterweight block depends on the stability and durability of the steel wire rope. Therefore, the performance of the traction counterweight component directly affects the safety and service life of the equipment.

[0003] Currently, the industry generally adopts a reciprocating motion detection method, that is, a motor is used to drive the steel wire rope to move back and forth at a constant speed, drive the counterweight block to lift and lower periodically, and measure the diameter change or surface wear of the steel wire rope after a specified detection time to judge its durability.

[0004] However, although the existing detection method can simulate the basic tensile load, it only uses uniform motion as the test condition and cannot reproduce the impact load generated by sudden user exertion or emergency braking during actual use. There is a significant deviation between the detection result and the actual working condition. Moreover, the existing detection method targets the entire steel wire rope and it is difficult to independently evaluate the key section where the steel wire rope is connected to the counterweight block. This section is prone to fatigue failure due to frequent bending and local stress concentration.

[0005] Therefore, there is an urgent need for a detection device that can apply static loads and impact loads and support segmented detection to improve the detection accuracy and practicality. Summary of the Invention

[0006] To solve the above technical problems, the technical solution adopted by the present invention is: a detection device for fitness equipment components, including a detection box. Inside the left side of the detection box, a counterweight block connected to a steel wire rope is slidably arranged up and down through a guide post. Inside the detection box, a guiding mechanism for guiding the steel wire rope and a detection mechanism are provided.

[0007] The guiding mechanism includes a plurality of guiding wheels arranged inside the detection box through a wheel frame assembly. The steel wire rope is arranged on the guiding wheels. The guiding mechanism further includes a segmentation component. When the segmentation component moves synchronously with the steel wire rope, by means of early locking, all the impact loads applied by the counterweight block to the steel wire rope are concentrated on the key section where the steel wire rope pulls the counterweight block.

[0008] The detection mechanism includes a guide rail rod fixedly installed at the rear side inside the detection box. A push frame is slidably connected up and down on the front side of the guide rail rod. A push wheel is rotatably arranged at the lower front end of the push frame. The detection mechanism further includes a reciprocating elevator and a locking component.

[0009] The reciprocating elevator intermittently pushes the steel wire rope downward through the push wheel and lifts the counterweight. The locking component cooperates with the reciprocating elevator, so that the counterweight falls at a uniform speed and alternates with free fall, thereby alternately applying static load and impact load on the steel wire rope.

[0010] Preferably, the wheel frame assembly includes a sliding frame slidably arranged up and down on the top wall of the detection box. The lower part of the sliding frame is in an arc structure. A deflection wheel frame is slidably arranged along its arc structure on the lower side of the sliding frame. A fixed wheel frame is fixedly installed at the left end of the right side wall of the detection box. A guide wheel is rotatably connected to the left side of the fixed wheel frame.

[0011] Preferably, a swing plate is rotatably arranged on the left side of the sliding frame. Two waist-shaped grooves are arranged up and down on the swing plate. The lower waist-shaped groove cooperates with the convex column groove on the deflection wheel frame. An asynchronous motor is fixedly installed on the upper side of the top wall of the detection box. A driving disc is fixedly installed on the output shaft of the asynchronous motor. The driving disc cooperates with the groove opening of the upper waist-shaped groove through a dialing column at its eccentric position on the right side.

[0012] Preferably, the wheel frame assembly further includes a support wheel frame fixedly installed on the lower side of the top wall of the detection box. Moving plates are slidably installed up and down on both the support wheel frame and the lower end of the deflection wheel frame. A guide wheel is rotatably connected to the lower ends of the support wheel frame, the deflection wheel frame and the moving plate. Locking plug plate parts are slidably connected left and right on both the support wheel frame and the deflection wheel frame.

[0013] Preferably, two groups of abutting columns arranged symmetrically front and back are provided on the lower part of the deflection wheel frame through a skirt. Each group consists of several abutting columns arranged at equal intervals along the circumferential direction of the guide wheel. The abutting columns at the rear side are slidably connected to the skirt of the guide wheel, and the abutting columns at the front side are fixedly connected to the skirt of the guide wheel.

[0014] Preferably, the segmenting component includes a linkage plate frame slidably arranged up and down on the left side of the support wheel frame. Two clamping rope plates arranged symmetrically front and back are slidably arranged on the linkage plate frame. A bidirectional screw threadedly connected to the clamping rope plates is rotatably arranged on the linkage plate frame. An adjusting screw for blocking the linkage plate frame is threadedly connected inside the support wheel frame.

[0015] Preferably, the reciprocating elevator includes a moving square rod slidably inserted up and down inside the push frame. Insertion grooves are opened at both the left and right ends of the lower side of the moving square rod. A driving rod is rotatably arranged inside the detection box. A reciprocating thread threadedly connected to the moving square rod is opened on the driving rod. A synchronous motor for driving the driving rod to rotate is fixedly installed on the upper side of the detection box.

[0016] Preferably, the locking assembly includes two left-right arranged sliding plug baffles that slide back and forth on the pushing frame. A spiral push spring is arranged between the right sliding plug baffle and the pushing frame, and a tension spring is arranged between the left sliding plug baffle and the pushing frame. A guiding groove is formed on the left side of the pushing frame. A connecting plate member is hinged on the left sliding plug baffle, and the rear end of the connecting plate member slides inside the guiding groove.

[0017] Preferably, a linkage column is fixedly installed on the side of the sliding plug baffle away from the pushing frame. A wedge plate member for pushing the left linkage column backward is fixedly installed on the left side of the guide rail rod. An unlocking plate member for pushing the right linkage column forward is slidably arranged up and down on the front side of the rear wall of the detection box.

[0018] Preferably, a rotating rod is rotatably arranged inside the detection box. A reciprocating thread for threadedly connecting with the unlocking plate member is formed on the rotating rod. The rotating rod is connected to the driving rod through the transmission of a belt pulley and a belt. The diameters of the belt pulleys on the rotating rod and the driving rod are different. The reciprocating thread of the rotating rod is located below the reciprocating thread of the driving rod, and the pitches of the two reciprocating threads are different.

[0019] The beneficial effects of the present invention are as follows: First, the present invention uses the reciprocating elevator and the locking assembly to cooperate to realize the alternating operation of the uniform falling and free falling of the counterweight, so as to alternately apply static load and impact load on the steel wire rope in a connected manner. This process does not require manual intervention and adjustment, which not only simplifies the operation process, but also can more realistically simulate the dynamic impact generated by sudden exertion or emergency braking in the actual use of users, significantly improving the fitting degree between the detection working condition and the actual working condition.

[0020] Second, the present invention clamps the steel wire rope by driving the rope clamping plate with the bidirectional screw in the segmented assembly, so that the steel wire rope and the linkage plate frame move synchronously. By moving the adjusting screw downward, the adjusting screw can block the linkage plate frame, and then the counterweight applies an impact load on the steel wire rope section between it and the linkage plate frame, so as to independently and accurately evaluate the durability of the key section of the steel wire rope and avoid the key defects being covered up in the overall detection.

[0021] Third, the present invention uses the reciprocating elevator to cooperate with the rotating rod and the driving rod, so that the rotating rod drives the unlocking plate member to move back and forth at a non-uniform speed relative to the pushing wheel. When the counterweight is lifted to a random height, the unlocking plate member cooperates with the linkage column, so that the counterweight falls freely, and then the application of the impact load is irregular, which is more in line with the randomness of the load change in the actual use of users, ensuring that the detection result has more reference value.

[0022] Fourth, the present invention adopts the deflecting wheel frame in the wheel frame assembly that can deflect along the arc-shaped sliding frame to change the contact position between the guide wheel and the steel wire rope, which can simulate the wear condition of the steel wire rope under different friction paths, further expanding the detection dimension and comprehensively evaluating its anti-fatigue performance.

[0023] V. The present invention adopts two sets of abutting columns arranged circumferentially on the guide wheel. By sliding and fixedly connecting the front and rear abutting columns, local resistance can be formed on the surface of the wire rope, simulating the friction and impact conditions when sundries adhere to the surface of the wire rope during actual use, further improving the fit between the detection conditions and the actual conditions, effectively filling the deficiencies in simulating complex environments in the existing technology, and enhancing the comprehensiveness and reliability of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the drawings and embodiments.

[0025] Figure 1 It is a partial structural schematic diagram of the present invention.

[0026] Figure 2 It is a cross-sectional view of the detection box, counterweight, guide wheel and reciprocating elevator in the present invention.

[0027] Figure 3 It is a partial cross-sectional view of the segmented component, wedge plate component, push frame and detection box in the present invention.

[0028] Figure 4 It is a partial structural schematic diagram of the guide rail rod, push frame, push wheel and moving square rod in the present invention.

[0029] Figure 5 It is a partial left view of the guide rail rod, sliding plug baffle, guide groove and push frame in the present invention.

[0030] Figure 6 It is a partial cross-sectional view of the push frame, sliding plug baffle, guide groove and connecting plate component in the present invention.

[0031] Figure 7 It is a partial structural schematic diagram of the support wheel frame, guide wheel, linkage plate frame and rope clamping plate in the present invention.

[0032] Figure 8 It is a cross-sectional view of the sliding frame, deflection wheel frame, asynchronous motor and swing plate in the present invention.

[0033] Figure 9 It is a cross-sectional view of the guide wheel located at the lower part on the deflection wheel frame in the present invention.

[0034] In the figure: 1, detection box; 2, guiding mechanism; 3, detection mechanism; 11, guiding column; 12, counterweight; 21, wheel frame assembly; 22, guiding wheel; 23, segment assembly; 31, guide rail rod; 32, pushing frame; 33, pushing wheel; 34, reciprocating elevator; 35, locking assembly; 211, sliding frame; 212, deflecting wheel frame; 213, swinging plate; 214, asynchronous motor; 215, driving disc; 216, abutting column; 217, supporting wheel frame; 218, locking plug plate member; 219, fixed wheel frame; 231, linkage plate frame; 232, rope clamping plate; 233, bidirectional screw; 234, adjusting screw; 341, moving square rod; 342, driving rod; 343, synchronous motor; 351, sliding plug baffle; 352, guiding groove; 353, connecting plate member; 354, linkage column; 355, wedge plate member; 356, unlocking plate member; 357, rotating rod. Detailed implementation manners

[0035] The embodiments of the present invention will be described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention. For those not specified in the embodiments regarding specific technologies or conditions, they shall be carried out according to the technologies or conditions described in the literature in this field or according to the product specifications.

[0036] Refer to Figure 1 and Figure 2 , a detection device for a fitness equipment component, including a detection box 1. Inside the left side of the detection box 1, a counterweight 12 connected with a steel wire rope is slidably arranged up and down through a guiding column 11. Inside the detection box 1, a detection mechanism 3 and a guiding mechanism 2 for guiding the steel wire rope are arranged.

[0037] When it is necessary to conduct a durability test on the traction counterweight assembly, the operator first arranges the steel wire rope on the guiding mechanism 2, and makes one end of the steel wire rope fixedly connected with the counterweight 12 and the other end fixedly connected with the detection box 1. Subsequently, the detection mechanism 3 reciprocates the steel wire rope, so that the steel wire rope applies a load by pulling the counterweight 12, thereby detecting the durability of the steel wire rope.

[0038] Continue to refer to Figure 1 and Figure 2 , the guiding mechanism 2 includes a plurality of guiding wheels 22 arranged inside the detection box 1 through a wheel frame assembly 21. The steel wire rope is arranged on the guiding wheels 22. The steel wire rope starts from the counterweight 12, and then sequentially winds around the guiding wheels 22 from left to right until it is fixedly connected to the detection box 1.

[0039] Refer to Figure 1 and Figure 8, the wheel frame assembly 21 includes a sliding frame 211 slidably arranged up and down on the top wall of the detection box 1. The lower part of the sliding frame 211 is in an arc structure. A deflection wheel frame 212 is slidably arranged along the arc structure on the lower side of the sliding frame 211. A fixed wheel frame 219 is fixedly installed at the left end of the right side wall of the detection box 1, and a guide wheel 22 is rotatably connected to the left side of the fixed wheel frame 219.

[0040] Refer to Figure 1 , Figure 7 and Figure 8 , the wheel frame assembly 21 further includes a support wheel frame 217 fixedly installed on the lower side of the top wall of the detection box 1. A moving plate is slidably installed up and down at the lower ends of both the support wheel frame 217 and the deflection wheel frame 212. A guide wheel 22 is rotatably connected to the lower ends of the support wheel frame 217, the deflection wheel frame 212, and the moving plate. Locking plug members 218 are slidably connected left and right on both the support wheel frame 217 and the deflection wheel frame 212.

[0041] Refer to Figure 1 , Figure 2 and Figure 3 , when the steel wire rope is arranged inside the detection box 1, the right end of the steel wire rope is fixedly connected to the right side of the bottom wall of the detection box 1, and the left end of the steel wire rope is fixedly connected to the upper side of the counterweight 12. The steel wire rope is respectively located above the guide wheel 22 of the fixed wheel frame 219, between the two guide wheels 22 on the deflection wheel frame 212, and between the two guide wheels 22 on the fixed wheel frame 219.

[0042] At the same time, in this embodiment, by sliding the moving plate upward, the corresponding guide wheel 22 is driven to move upward, so that the two guide wheels 22 located in the same vertical plane are separated from each other, facilitating the steel wire rope to be inserted and wound between the two vertically arranged guide wheels 22. Subsequently, the locking plug member 218 is moved to block the upper part of the corresponding moving plate, so that the moving plate presses the steel wire rope through the guide wheel 22.

[0043] It should be noted that the locking plug member 218 is locked to the support wheel frame 217 and the deflection wheel frame 212 respectively by fastening screws. After the locking plug member 218 slides to the upper part of the moving plate, the locking plug member 218 can block the upper part of the moving plate, thereby preventing the moving plate from moving upward, so that the locking plug member 218 drives the corresponding guide wheel 22 to press against the steel wire rope by blocking the moving plate. Subsequently, the operator manually tightens the fastening screws to lock the locking plug member 218 on the support wheel frame 217 and the deflection wheel frame 212, ensuring that the two vertically arranged guide wheels 22 press tightly against the steel wire rope.

[0044] In this embodiment, as Figure 2As shown, a driving screw rod that is rotationally arranged on the upper side of the detection box 1 and is threadedly connected to the sliding frame 211 is provided. When the steel wire rope is arranged on the guide wheel 22, the operator lifts the sliding frame 211 by screwing the driving screw rod, so that the sliding frame 211 lifts the steel wire rope through the deflection wheel frame 212 and the corresponding guide wheel 22, thereby lifting the counterweight 12, and enabling the steel wire rope to be subjected to the gravity of the counterweight 12 in the initial state.

[0045] Refer to Figure 1 and Figure 2 As shown in and, the detection mechanism 3 includes a guide rail rod 31 fixedly installed at the rear side inside the detection box 1. A push frame 32 is slidably connected up and down on the front side of the guide rail rod 31. A push wheel 33 is rotationally arranged at the lower front end of the push frame 32. The detection mechanism 3 further includes a reciprocating elevator 34 and a locking assembly 35.

[0046] Continue to refer to Figure 1 and Figure 2 As shown in and, the reciprocating elevator 34 intermittently pushes the steel wire rope downward through the push wheel 33 and lifts the counterweight 12. The locking assembly 35 cooperates with the reciprocating elevator 34 to enable the counterweight 12 to fall at a uniform speed and alternate with free fall, so as to alternately apply static load and impact load on the steel wire rope.

[0047] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in,

[0048] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown in,

[0049] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 andFigure 5 On the side of the sliding plug baffle 351 away from the pushing frame 32, a linkage column 354 is fixedly installed. On the left side of the guide rail rod 31, a wedge plate member 355 for pushing the left linkage column 354 backward is fixedly installed. On the front side of the rear wall of the detection box 1, an unlocking plate member 356 for pushing the right linkage column 354 forward is slidably arranged up and down.

[0050] Refer to Figure 1 and Figure 2 As shown in and, a rotating rod 357 is rotatably arranged inside the detection box 1. A reciprocating thread for threadedly connecting with the unlocking plate member 356 is provided on the rotating rod 357. The rotating rod 357 is connected to the driving rod 342 through the transmission of a belt pulley and a belt. The diameters of the belt pulleys on the rotating rod 357 and the driving rod 342 are different. The reciprocating thread of the rotating rod 357 is located below the reciprocating thread of the driving rod 342, and the pitches of the two reciprocating threads are different.

[0051] In the initial state, the pushing wheel 33 is located above the steel wire rope section between the supporting wheel frame 217 and the fixed wheel frame 219. The right spiral push spring pushes the right sliding plug baffle 351 backward through its own elastic force and inserts it into the insertion slot on the right side of the moving square rod 341. The wedge plate member 355 drives the left sliding plug baffle 351 to insert into the insertion slot on the left side of the moving square rod 341 by pushing the left linkage column 354 backward, and stretches the tension spring. At the same time, the left sliding plug baffle 351 drives the rear end of the connecting plate member 353 to be located above the rear part of the guiding groove 352.

[0052] It should be noted that the left sliding plug baffle 351, the connecting plate member 353 and the guiding groove 352 form a mechanical self-locking structure, enabling the connecting plate member 353 to move unidirectionally inside the guiding groove 352.

[0053] Start the synchronous motor 343 to drive the driving rod 342 to rotate. The driving rod 342 drives the moving square rod 341 to move downward through the reciprocating thread on it. The moving square rod 341 drives the two sliding plug baffles 351 to move downward synchronously through the insertion slots on it. The sliding plug baffle 351 drives the pushing wheel 33 downward through the pushing frame 32, so that the pushing wheel 33 presses the steel wire rope downward, thereby lifting the counterweight 12 upward by the steel wire rope.

[0054] When the left sliding plug baffle 351 moves downward, the tension spring pulls the left sliding plug baffle 351 forward through its own tension. The left sliding plug baffle 351 drives the connecting plate member 353 to move to the central position at the rear part of the guiding groove 352, so that the guiding groove 352 pulls the left sliding plug baffle 351 through the connecting plate member 353 to prevent the tension spring from pulling the left sliding plug baffle 351 out of the left insertion slot.

[0055] The driving rod 342 drives the rotating rod 357 to rotate non-uniformly through the transmission of a belt pulley and a belt. The rotating rod 357 drives the unlocking plate member 356 to move upward through the reciprocating thread thereon. When the unlocking plate member 356 contacts the linkage column 354 on the right, the unlocking plate member 356 drives the sliding insertion baffle 351 on the right to be pushed forward by pushing the linkage column 354 on the right until it exits the insertion slot on the right, and compresses the spiral push spring.

[0056] At this time, the sliding insertion baffle 351 on the left still inserts into the insertion slot on the left, so that the moving square rod 341 is still connected to the pushing frame 32 through the sliding insertion baffle 351 on the left. Subsequently, the moving square rod 341 moves to the lower end of the reciprocating thread section of the driving rod 342, causing the driving rod 342 to start driving the pushing frame 32 to move upward synchronously and uniformly through the moving square rod 341. As a result, the counterweight 12 falls uniformly under the restriction of gravity and the pushing frame 32, thereby completing a uniform lifting and lowering of the counterweight 12.

[0057] When the linkage column 354 on the right is disengaged from the unlocking plate member 356, the spiral push spring pushes the sliding insertion baffle 351 on the right backward through its own elastic force to insert into the insertion slot on the right again. When the pushing frame 32 moves upward to the initial upper position again, the pushing frame 32 drives the linkage column 354 on the left to contact the wedge plate member 355 again, causing the wedge plate member 355 to push the linkage column 354 on the left backward again. The linkage column 354 on the left drives the rear end of the connecting plate member 353 to move along the track of the guiding groove 352 to the lower position at its rear. Then, the driving rod 342 drives the pushing frame 32 downward again.

[0058] When the pushing frame 32 drives the linkage column 354 on the left to be disengaged from the wedge plate member 355, the tension spring drives the sliding insertion baffle 351 on the left to move forward to exit the insertion slot on the left, so that the moving square rod 341 drives the pushing frame 32 downward only through the sliding insertion baffle 351 on the right. The pushing frame 32 lifts the counterweight 12 again through the pushing wheel 33.

[0059] When the unlocking plate member 356 contacts the linkage column 354 on the right again, the unlocking plate member 356 drives the sliding insertion baffle 351 on the right to be pushed forward by pushing the linkage column 354 on the right until it exits the insertion slot on the right, and compresses the spiral push spring. At this time, both sliding insertion baffles 351 exit the insertion slot, so that the pushing frame 32 is no longer locked to the moving square rod 341, and the pushing frame 32 no longer pushes and blocks the steel wire rope through the pushing wheel 33.

[0060] Subsequently, the counterweight 12 freely falls under the action of gravity, causing the counterweight 12 to drive the driving wheel 33 to move upward rapidly by pulling the steel wire rope. When the pushing frame 32 moves upward relative to the moving square rod 341, the insertion slot on the moving square rod 341 is located below the sliding insertion baffle 351. When the pushing frame 32 drives the linkage column 354 on the left to abut against the wedge plate member 355, the wedge plate member 355 pushes the sliding insertion baffle 351 on the left backward until it abuts against the front side surface of the moving square rod 341. At the same time, the spiral push spring pushes the sliding insertion baffle 351 on the right backward by its own elastic force to abut against the front side surface of the moving square rod 341.

[0061] At this time, the linkage column 354 on the left is blocked by the moving square rod 341 and cannot move backward anymore. At this time, the rear end of the connecting plate member 353 is located at the upper position of the guiding groove 352, so that the pushing frame 32 cannot drive the linkage column 354 on the left to move upward, thereby causing the pushing frame 32 to stop moving upward instantly. Furthermore, the counterweight 12 causes an instantaneous tensile impact on the steel wire rope, completing a detection of the impact load on the steel wire rope.

[0062] After that, the driving rod 342 drives the moving square rod 341 to move upward. When the insertion slot on the moving square rod 341 corresponds to the position of the sliding insertion baffle 351, the spiral push spring pushes the sliding insertion baffle 351 on the right backward by its own elastic force to insert it into the right insertion slot again. Subsequently, the moving square rod 341 drives the pushing frame 32 to move upward to the initial height position through the sliding insertion baffle 351 on the right, so that the wedge plate member 355 continues to push the linkage column 354 on the left backward. The linkage column 354 on the left drives the sliding insertion baffle 351 on the left to insert into the left insertion slot again. At the same time, the sliding insertion baffle 351 on the left drives the rear end of the connecting plate member 353 to move to the upper position behind the guiding groove 352.

[0063] In this embodiment, since the pitch of the reciprocating thread of the rotating rod 357 is different from that of the reciprocating thread of the driving rod 342, and the diameters of the pulleys on the rotating rod 357 and the driving rod 342 are different, the moving speed of the unlocking plate member 356 is different from the moving speed of the pushing frame 32. As a result, the timing of the contact between the unlocking plate member 356 and the linkage column 354 on the right is not fixed, and thus the height of the free fall of the counterweight 12 is random, so as to make the application of the impact load on the steel wire rope irregular, closer to the randomness of the load change in the actual use of the user, and ensure that the detection result is more valuable for reference.

[0064] Refer to Figure 1 and Figure 8, a swing plate 213 is rotatably arranged on the left side of the sliding carriage 211. Two vertically arranged waist-shaped slots are formed in the swing plate 213. The lower waist-shaped slot is engaged with the convex column slot opening on the deflection wheel frame 212. An asynchronous motor 214 is fixedly installed on the upper side of the top wall of the detection box 1. A driving disk 215 is fixedly installed on the output shaft of the asynchronous motor 214. The driving disk 215 is engaged with the upper waist-shaped slot opening through a shifting column at its eccentric position on the right side.

[0065] Refer to Figure 8 and Figure 9 , two groups of front and rear symmetrically arranged abutting columns 216 are arranged on the lower guiding wheel 22 on the deflection wheel frame 212 through a skirt. Each group is composed of a plurality of abutting columns 216 arranged at equal intervals along the circumferential direction of the guiding wheel 22. The rear abutting columns 216 are slidably connected to the skirt of the guiding wheel 22, and the front abutting columns 216 are fixedly connected to the skirt of the guiding wheel 22.

[0066] When it is necessary to simulate the situation where sundries are attached to the steel wire rope, start the asynchronous motor 214, so that the asynchronous motor 214 drives the driving disk 215 to rotate. The driving disk 215 drives the swing plate 213 to swing back and forth through the shifting column. The swing plate 213 drives the deflection wheel frame 212 to reciprocate along the arc structure of the sliding carriage 211, so that the deflection wheel frame 212 drives the two groups of abutting columns 216 to alternately contact the steel wire rope through the guiding wheel 22 thereon, so as to simulate the friction and impact working conditions when sundries adhere to the surface of the steel wire rope during actual use, further improving the fitting degree between the detection working conditions and the actual working conditions. And through the abutting columns 216 with two connection forms of sliding and fixing, the influence of sundries with different hardness levels on the steel wire rope can be simulated, effectively filling the deficiency of the existing technology in simulating complex environments and enhancing the comprehensiveness and reliability of the detection results.

[0067] In addition, when the guiding wheel 22 deflects, it can continuously change the position of frictional contact with the steel wire rope, simulating the wear conditions of the steel wire rope under different frictional paths, further expanding the detection dimension and comprehensively evaluating its anti-fatigue performance. And when the driving disk 215 drives the shifting column thereon to rotate to the upper part, the shifting column is far from the turning point of the swing plate 213, making the swing speed of the swing plate 213 slower. On the contrary, the driving disk 215 drives the swing plate 213 to swing quickly, so that the sliding carriage 211 drives the guiding wheel 22 to reciprocate at inconsistent speeds, and thus can further simulate extreme situations.

[0068] Refer to Figure 1 , Figure 3 and Figure 7 , the guiding mechanism 2 further includes a segmented component 23. When the segmented component 23 moves synchronously with the steel wire rope, by means of early locking, the impact load applied by the counterweight 12 to the steel wire rope is all concentrated on the key section where the steel wire rope pulls the counterweight 12.

[0069] Refer to Figure 3 and Figure 7 The segmented component 23 includes a linkage plate frame 231 that is slid up and down on the left side of the support wheel frame 217. Two clamping rope plates 232 that are symmetrically arranged front and back are slid back and forth on the linkage plate frame 231. A bidirectional screw 233 that is rotationally connected to the clamping rope plates 232 by threads is rotationally arranged on the linkage plate frame 231. An adjusting screw 234 that blocks the linkage plate frame 231 is threadedly connected inside the support wheel frame 217.

[0070] After the steel wire rope is arranged on the guide wheel 22, the steel wire rope between the left part of the support wheel frame 217 and the sliding frame 211 is in a vertical state and is located between the two clamping rope plates 232. Then, the bidirectional screw 233 is manually rotated to drive the clamping rope plates 232 to clamp on the steel wire rope, so that when the counterweight 12 moves up and down, the steel wire rope drives the linkage plate frame 231 to move synchronously through the clamping rope plates 232.

[0071] When the overall steel wire rope needs to be detected, the adjusting screw 234 is made not to contact the linkage plate frame 231, so that the adjusting screw 234 does not block the linkage plate frame 231. The impact load of the counterweight 12 on the steel wire rope can be transmitted along the steel wire rope to the whole of the steel wire rope, and then the whole of the steel wire rope is detected.

[0072] When the main stress section of the steel wire rope needs to be detected, the operator manually rotates the adjusting screw 234 to make the adjusting screw 234 move downward. Then, the synchronous motor 343 and the asynchronous motor 214 are started. Similarly, when the counterweight 12 freely falls, the steel wire rope drives the linkage plate frame 231 to move up synchronously until the linkage plate frame 231 abuts against the lower part of the adjusting screw 234, so that the steel wire rope stops instantly. At this time, the steel wire rope section on the right side of the linkage plate frame 231 is in a slack state, so that the impact load of the counterweight 12 on the steel wire rope is applied to the steel wire rope section on the left side of the linkage plate frame 231, so as to independently and accurately evaluate the durability of the key section of the steel wire rope and avoid the problem that key defects are covered up in the overall detection.

[0073] After the detection is completed, the operator measures the diameter of the steel wire rope and observes the surface of the steel wire rope. If the diameter of the steel wire rope is within the standard range and the surface of the steel wire rope meets the standard, it is judged that the detection is qualified; otherwise, it is unqualified.

[0074] Refer to Figures 1 - 9 When the present invention detects the steel wire rope, the following steps are further included: First step, the operator arranges the steel wire rope inside the detection box 1, so that the steel wire rope is wound around the guide wheel 22, and one end is fixedly connected to the detection box 1, and the other end is fixedly connected to the counterweight 12.

[0075] In the second step, the operator lifts the sliding frame 211 by turning the driving screw, so that the sliding frame 211 lifts the steel wire rope through the deflection wheel frame 212 and the corresponding guide wheel 22, thereby lifting the counterweight 12, so that the steel wire rope is subjected to the gravity of the counterweight 12 in the initial state.

[0076] In the third step, start the synchronous motor 343 and the asynchronous motor 214, so that the moving square rod 341 drives the pushing wheel 33 downward through the sliding plug baffle 351, so that the pushing wheel 33 presses the steel wire rope downward, so that the steel wire rope lifts the counterweight 12 upward, and the driving rod 342 drives the unlocking plate 356 to move upward through the rotating rod 357.

[0077] In the fourth step, the unlocking plate 356 pushes the right linkage column 354 forward, so that the moving square rod 341 is still connected to the pushing frame 32 through the left sliding plug baffle 351. Subsequently, the moving square rod 341 starts to drive the pushing frame 32 to move upward at a constant speed, so that the counterweight 12 falls at a constant speed under the action of gravity, and thus a uniform lifting and lowering of the counterweight 12 is completed.

[0078] In the fifth step, the pushing frame 32 moves upward again to the upper initial position. The wedge plate 355 pushes the left linkage column 354 backward. Then the driving rod 342 drives the pushing frame 32 downward again, so that the tension spring drives the left sliding plug baffle 351 to move forward through its own tension to withdraw from the left insertion slot, and the pushing frame 32 lifts the counterweight 12 again through the pushing wheel 33.

[0079] In the sixth step, the unlocking plate 356 contacts the right linkage column 354, and the unlocking plate 356 drives the right sliding plug baffle 351 to withdraw from the right insertion slot, so that the pushing frame 32 is no longer locked to the moving square rod 341, and the counterweight 12 falls freely under the action of gravity.

[0080] In the seventh step, the counterweight 12 drives the pushing wheel 33 to move upward rapidly through the steel wire rope. The pushing frame 32 drives the left linkage column 354 to abut against the wedge plate 355, so that the pushing frame 32 cannot drive the left linkage column 354 to move upward, so that the pushing frame 32 stops moving upward instantly, and thus the counterweight 12 causes an instantaneous impact on the steel wire rope, completing an impact load test on the steel wire rope.

[0081] In the eighth step, the asynchronous motor 214 drives the two abutting columns 216 to alternately contact the steel wire rope, so as to simulate the friction and impact conditions when foreign matters adhere to the surface of the steel wire rope during actual use, and further improve the fitting degree between the detection conditions and the actual conditions.

[0082] In the ninth step, the operator manually rotates the adjusting screw 234 so that when the counterweight 12 freely falls, the linkage plate frame 231 abuts against the lower part of the adjusting screw 234, so that the impact load of the counterweight 12 on the steel wire rope is applied to the steel wire rope section located on the left part of the linkage plate frame 231, thereby independently and accurately evaluating the durability of the key section of the steel wire rope and avoiding the problem that key defects are covered up in the overall detection.

[0083] In the tenth step, the operator measures the diameter of the steel wire rope and observes the surface of the steel wire rope. If the diameter of the steel wire rope is within the standard range and the surface of the steel wire rope meets the standard, it is determined that the detection is qualified; otherwise, it is unqualified.

[0084] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention, and still be covered by the protection scope of the present invention.

Claims

1. A detection device for a fitness equipment component, comprising a detection box. Inside the left side of the detection box, a counterweight block connected to a steel wire rope is slidably arranged up and down through a guide post. It is characterized in that, A guide mechanism for guiding the steel wire rope and a detection mechanism are arranged inside the detection box; The guide mechanism includes a plurality of guide wheels arranged inside the detection box through a wheel frame assembly, and the steel wire rope is arranged on the guide wheels. The guide mechanism also includes a segment assembly, and the segment assembly is locked in advance when it moves synchronously with the steel wire rope, so that the impact load applied by the counterweight block to the steel wire rope is all concentrated on the key section where the steel wire rope pulls the counterweight block; The detection mechanism includes a guide rail rod fixedly installed on the rear side of the detection box, a push frame is slidably connected to the front side of the guide rail rod, and a push wheel is rotatably provided on the lower side of the front end of the push frame. The detection mechanism also includes a reciprocating lift and a locking assembly; The reciprocating lift intermittently pushes the wire rope downward and lifts the counterweight through the driving wheel. The locking assembly cooperates with the reciprocating lift so that the counterweight falls at a constant speed and connects with the free fall alternately, thereby alternately applying static load and impact load on the wire rope.

2. The detection device for a fitness equipment component according to claim 1, wherein The wheel frame assembly includes a sliding frame that is slidably arranged on the top wall of the detection box up and down, the lower part of the sliding frame is an arc-shaped structure, and a deflection wheel frame is slidably arranged on the lower side of the sliding frame along its arc structure, a fixed wheel frame is fixedly installed on the left end of the right side wall of the detection box, and a guide wheel is rotatably connected to the left side of the fixed wheel frame.

3. The detection device for a fitness equipment component according to claim 2, characterized in that, A swing plate is rotatably arranged on the left side of the sliding frame, and two waist-shaped grooves are arranged up and down on the swing plate. The lower waist-shaped groove cooperates with the raised column notch on the deflection wheel frame. An asynchronous motor is fixedly installed on the upper side of the top wall of the detection box, and a driving disk is fixedly installed on the output shaft of the asynchronous motor. The driving disk cooperates with the upper waist-shaped groove notch through a toggle column at an eccentric position on its right side.

4. The detection device for a fitness equipment component according to claim 2, characterized in that, The wheel frame assembly also includes a supporting wheel frame fixedly installed on the lower side of the top wall of the detection box, and a movable plate is installed on the lower ends of the supporting wheel frame and the deflection wheel frame for sliding up and down. The supporting wheel frame, the deflection wheel frame and the lower ends of the movable plate are rotatably connected to a guide wheel, and a locking plug plate is connected to the supporting wheel frame and the deflection wheel frame for sliding left and right.

5. The detection device for a fitness equipment component according to claim 4, wherein, The guide wheel at the lower part of the deflection wheel frame is provided with two groups of abutment columns arranged symmetrically front and rear through the skirt, each group is composed of a number of abutment columns arranged at equal intervals along the circumference of the guide wheel, the abutment column on the rear side is slidably connected to the guide wheel skirt, and the abutment column on the front side is fixedly connected to the guide wheel skirt.

6. The detecting device for a fitness equipment component according to claim 4, characterized in that The segmented assembly includes a linkage plate frame that is slidably arranged up and down on the left side of the supporting wheel frame, and two rope clamping plates that are symmetrically arranged front and back are slidably arranged on the linkage plate frame. A bidirectional screw that is threadedly connected to the rope clamping plate is rotatably arranged on the linkage plate frame, and an adjusting screw that blocks the linkage plate frame is threadedly connected inside the supporting wheel frame.

7. A fitness equipment component detection device according to claim 1, characterized in that, The reciprocating lift includes a moving square rod that slides up and down and is inserted into the pushing frame. Insertion grooves are provided at both left and right ends of the lower side of the moving square rod. A driving rod is rotatably arranged inside the detection box. The driving rod is provided with a reciprocating thread that is threadedly connected to the moving square rod. A synchronous motor that drives the driving rod to rotate is fixedly installed on the upper side of the detection box.

8. An inspection device for a fitness equipment component according to claim 7, characterized in that, The locking assembly includes two sliding plug baffles arranged left and right and sliding back and forth on the pushing frame. A spiral push spring is arranged between the sliding plug baffle on the right and the pushing frame, and a tension spring is arranged between the sliding plug baffle on the left and the pushing frame. A guiding groove is formed on the left side of the pushing frame. A connecting plate member is hinged on the sliding plug baffle on the left, and the rear end of the connecting plate member slides inside the guiding groove.

9. The detection device for a fitness equipment component according to claim 8, wherein, A linkage column is fixedly installed on one side of the sliding plug baffle away from the pushing frame. A wedge plate member for pushing the linkage column on the left backward is fixedly installed on the left side of the guide rail rod. An unlocking plate member for pushing the linkage column on the right forward is slidably arranged up and down on the front side of the rear wall of the detection box.

10. A fitness equipment component detection device according to claim 9, characterized in that, A rotating rod is rotatably arranged inside the detection box. A reciprocating thread for threadedly connecting with the unlocking plate member is formed on the rotating rod. The rotating rod is connected to the driving rod through the transmission of a belt pulley and a belt. The diameters of the belt pulleys on the rotating rod and the driving rod are different. The reciprocating thread of the rotating rod is located below the reciprocating thread of the driving rod, and the pitches of the two reciprocating threads are different.

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