CN220918034U - Tension rope guiding structure, body-building device and rowing machine - Google Patents

Abstract

The application discloses a tension rope guiding structure, which comprises: the periphery of the guide pulleys is provided with pulley grooves capable of being placed with tension ropes; the wheel shafts of the two guide pulleys are arranged at an angle; the rope outlet side of the guide pulley is provided with a limiting plate, two rope passing holes are formed in the limiting plate, the size of each rope passing hole is smaller than that of a rope head connected with the end part of the tension rope, the tension rope penetrates through the rope passing holes, and the rope head is limited on one side, opposite to the guide pulley, of the limiting plate. The strength training equipment can always apply recovery force to the tension rope, and in a natural state, the rope head of the tension rope can be contacted with and extruded to the guide pulley, and long-time acting force can influence the stability of the guide pulley structure. The limiting plate is arranged in the scheme, the tension rope passes through the rope passing hole in the limiting plate, so that the rope head can be always limited on one side, opposite to the guide pulley, of the limiting plate, and the rope head is prevented from being contacted and extruded to the guide pulley.

Description

Tension rope guiding structure, body-building device and rowing machine

Technical Field

The application relates to the technical field of transmission devices, in particular to a tension rope guiding structure, a body-building device and a rowing machine.

Background

The existing indoor body-building equipment such as a pulling machine, a rowing machine and the like comprises strength training equipment, wherein the strength training equipment takes a motor or electromagnetism as a resistance source, is connected with a pull rope to output resistance, is assisted with related accessories, and a user indirectly pulls the pull rope through the related accessories to overcome the resistance of the strength training equipment, so that various different strength training purposes are realized. When different related accessories are used for different training projects, the pulling direction of one end of the pull rope connected with the accessory is different, and the strength training equipment is fixedly arranged, so when the pull rope of the strength training equipment directly stretches out and cannot meet the requirement of the connected accessory, a steering mechanism is required to be arranged between the strength training equipment and the accessory, and the extending direction of the pull rope is steered by the steering mechanism so as to meet the different requirements of the two end moving directions of the pull rope connected with the strength training equipment and the connected accessory.

The existing steering mechanism is generally a universal mechanism or a guide wheel capable of swinging so as to meet the training requirements of users in different directions. The universal mechanism or the guide wheel capable of swinging is flexible, but the reliability is poor and the subsequent maintenance cost is high because the guide wheel can swing continuously in the training process.

Disclosure of utility model

The aim of the embodiment of the utility model is that: the utility model provides a pulling force rope guide structure, body-building device and rowing machine, it can solve the above-mentioned problem that exists among the prior art.

In order to achieve the above purpose, the application adopts the following technical scheme:

In one aspect, a tension cord guiding structure is provided, comprising:

the periphery of the guide pulleys is provided with pulley grooves capable of being placed with tension ropes;

the wheel shafts of the two guide pulleys are arranged at an angle;

The rope outlet side of the guide pulley is provided with a limiting plate, two rope passing holes are formed in the limiting plate, the size of each rope passing hole is smaller than that of a rope head connected with the end part of the tension rope, the tension rope penetrates through the rope passing holes, and the rope head is limited on one side, opposite to the guide pulley, of the limiting plate.

Optionally, the device further comprises a limiting piece, wherein the limiting piece is arranged between the two guide pulleys and can simultaneously shield the notch of the pulley groove on two sides, so that the tension rope arranged between the limiting piece and the guide pulleys cannot be separated from the pulley groove.

Optionally, a distance is kept between the surface of the limiting piece and the notch edge of the pulley groove, and the distance between the surface of the limiting piece and the notch edge of the pulley groove is smaller than the diameter of the tension rope.

Optionally, the limiting piece includes the movably mounted limiting block, through the limiting block is relative the guide pulley activity, can make its skew or shelter from the pulley groove.

Optionally, the limiting piece further comprises a reset spring, wherein the reset spring is connected with the limiting piece and can push the limiting piece to be kept at a position for shielding the pulley groove.

Optionally, the limiting part further comprises a guide post, the reset spring is sleeved outside the guide post, and one end of the reset spring is fixed at the end part of the guide post; the limiting block is sleeved outside the reset spring and connected with the other end of the reset spring.

Optionally, the side edge of the limiting block facing the pulley groove is parallel to the notch of the corresponding pulley groove.

Optionally, the device comprises a trapezoid mounting seat, wherein the trapezoid mounting seat is provided with two opposite mounting inclined planes and a mounting top surface connected between the two mounting inclined planes, a pulley shaft is arranged on each mounting inclined plane, and a guide pulley is arranged on each pulley shaft, so that the two guide pulleys are arranged at an angle; the limiting piece is arranged on the installation top surface.

On the other hand, a body-building device is provided, and the body-building device comprises a strength training device and the tension rope guiding structure, wherein the strength training device extends out of two tension ropes, and the two tension ropes respectively bypass the guiding pulleys of the tension rope guiding structure to steer.

In yet another aspect, a rowing machine is provided, including a strength training device and a rowing bench, wherein the rowing bench is provided with a tensile rope guiding structure as described above, the strength training device extends two tensile ropes, and the two tensile ropes are connected with a hand pull rod on the rowing bench after bypassing the tensile rope guiding structure.

Optionally, the rowing stool comprises a frame and a sliding seat plate; the rack comprises a front bracket, a rear bracket and a cross rod connected between the front bracket and the rear bracket, and the sliding seat plate is slidably arranged on the cross rod; the tension rope guide structure is arranged at the top end of the front bracket; the front support is erected on the top of the strength training equipment, two rope outlets are formed in the top surface of the strength training equipment and are respectively located at the left side and the right side of the front support, and two tension ropes extend out from the two rope outlets respectively.

The utility model provides a tension rope guiding structure, a body-building device and a rowing machine.

Drawings

The application is described in further detail below with reference to the drawings and examples.

FIG. 1 is a front view of a tensile cord guiding structure according to an embodiment of the present application;

FIG. 2 is one of the perspective views of the tensile cord guiding structure according to an embodiment of the present application;

FIG. 3 is a second perspective view of a tensile cord guiding structure according to an embodiment of the present application;

FIG. 4 is an exploded view of a tensile cord guiding structure according to an embodiment of the present application;

FIG. 5 is a schematic view of a rowing machine according to an embodiment of the present application;

FIG. 6 is a second schematic structural view of the rowing machine according to the embodiment of the present application;

FIG. 7 is an enlarged schematic view of area A of FIG. 6;

FIG. 8 is a schematic view of a rowing stool in accordance with an embodiment of the present application;

FIG. 9 is one of the exploded views of the rowing bench according to the embodiment of the present application;

FIG. 10 is a second schematic exploded view of a rowing bench according to an embodiment of the application.

In the figure:

10. A tension rope guiding structure; 11. a guide pulley; 111. pulley grooves; 112. a pulley shaft; 12. a limiting piece; 121. a limiting block; 122. a return spring; 123. a guide post; 13. a trapezoid mounting base; 131. a mounting inclined plane; 132. installing a top surface; 14. a limiting plate; 141. rope passing holes; 20. a strength training device; 21. a tension rope; 22. rope ends; 23. a rope outlet; 30. rowing stool; 31. a frame; 311. a front bracket; 312. a rear bracket; 313. a cross bar; 32. a sliding seat plate; 321. a roller frame; 322. an upper roller; 323. a lower roller; 33. foot pedal; 34. a hand pull rod.

Detailed Description

In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present application are described in further detail below, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The existing indoor body-building equipment such as a pulling machine, a rowing machine and the like comprises strength training equipment, wherein the strength training equipment takes a motor or electromagnetism as a resistance source, is connected with a pull rope to output resistance, is assisted with related accessories, and a user indirectly pulls the pull rope through the related accessories to overcome the resistance of the strength training equipment, so that various different strength training purposes are realized. When different related accessories are used for different training projects, the pulling direction of one end of the pull rope connected with the accessory is different, and the strength training equipment is fixedly arranged, so when the pull rope of the strength training equipment directly stretches out and cannot meet the requirement of the connected accessory, a steering mechanism is required to be arranged between the strength training equipment and the accessory, and the extending direction of the pull rope is steered by the steering mechanism so as to meet the different requirements of the two end moving directions of the pull rope connected with the strength training equipment and the connected accessory.

For example, prior art CN116474312a discloses a multifunctional exercise machine, where the body of the exercise machine includes two force sources (i.e. force training devices), the force sources output tensile resistance through the pull rope, and the force sources are connected with any exercise machine such as a handle, a high-level pull rod, a V-shaped handle, a long straight rod, a pull rope component or a binding belt, so as to provide pull rope resistance in different directions for the user to perform different training projects. When different training projects are carried out, because the movement directions of the body-building device are different, the fixed force source can output resistance through the pull rope, the steering wheel which can provide steering for the direction of the pull rope is required to be arranged in the body-building device main body, and the pull rope bypasses different steering wheels, so that different output directions can be obtained.

The existing stay cord steering mechanism is generally a universal mechanism or a guide wheel capable of swinging, so that the training requirements of users in different directions are met. The universal mechanism or the guide wheel capable of swinging is flexible, but the reliability is poor and the subsequent maintenance cost is high because the guide wheel can swing continuously in the training process.

In order to solve the above technical problems, the present embodiment provides a tension rope guiding structure 10, which can be applied to various fitness equipments which provide tensile resistance through tension ropes and need to turn the tension ropes, including but not limited to rowing machines, smith machines, comprehensive training fitness machines, etc.

The tension cord guiding structure 10 of the present embodiment provides guiding of the extension of the tension cord 21 by means of the guiding pulley 11. Compared with the prior art, the universal mechanism or the guide wheel capable of swinging is omitted, and the guide wheel is replaced by the guide pulley 11 with a pair of wheel shafts arranged at an angle to each other, so that the training requirements of users in different directions can be met. The guide pulley 11 is fixedly arranged and can only self-rotate without swinging, so that the maintenance cost is reduced simply and reliably. Meanwhile, the tension rope guiding structure 10 of the embodiment is provided with the limiting plate 14, the limiting plate 14 is used for limiting the rope end 23, the rope end 23 is prevented from being extruded to the guiding pulley 11 during recycling, and the service stability and the service life of the guiding pulley 11 are improved.

As shown in fig. 1 to 4, the tensile cord guiding structure 10 of the present embodiment includes two guiding pulleys 11 and a stopper 12 located between the two guiding pulleys 11, wherein the two guiding pulleys 11 are disposed at intervals, and the outer circumference of the guiding pulley 11 has a pulley groove 111 into which a tensile cord 21 can be inserted;

In this embodiment, the wheel shafts of the two guide pulleys 11 are arranged at an angle to each other; specifically, in order to ensure the smoothness of the guiding of the pull rope 21 by the guiding pulley 11, an included angle between the pull rope 21 and the radial plane of the guiding pulley 11 should be avoided, i.e. in the best case, the axle of the guiding pulley 11 should be kept perpendicular to the pull rope 21. In some cases, however, the tension lines 21 may have different heights at the ends, and the tension lines 21 may need to extend diagonally. As shown in fig. 6 to 7, the tension ropes 21 are extended from the lower strength training device 20, and the tension ropes 21 on both sides need to be extended upward and closed toward each other, and the connection line between the tension ropes 21 and the guide pulley 11 is an inclined line. Therefore, the axles of the two guide pulleys 11 are arranged at an angle, so that the guide pulleys 11 on two sides can provide smooth guide for the tension ropes 21 on two sides.

Specifically, regarding the setting of the inclination angle of the two guide pulleys 11, in the design stage, a reference line may be drawn between the side of the rope outlet 23 of the strength training device 20 near the guide pulley 11 and the midpoint of the setting position of the guide pulley 11, where the reference line is the extending direction of the tension rope 21, so that the axle of the guide pulley 11 is perpendicular to the reference line.

The rope outlet side of the guide pulley 11 is provided with a limiting plate 14, two rope passing holes 141 are formed in the limiting plate 14, the size of each rope passing hole 141 is smaller than that of a rope head 22 connected with the end of the tension rope 21, the tension rope 21 penetrates through the rope passing holes 141, and the rope heads 22 are limited on one side, opposite to the guide pulley 11, of the limiting plate 14.

Specifically, the strength training device 20 itself always applies a recovery force to the tension rope 21, and in a natural state, the rope head 22 of the tension rope 21 contacts and presses the guide pulley 11, and a long-time acting force affects the stability of the structure of the guide pulley 11. Therefore, the tension rope guiding structure 10 of the scheme is provided with the limiting plate 14, and the tension rope 21 passes through the rope passing hole 141 on the limiting plate 14, so that the rope end 22 can be always limited on one side of the limiting plate 14, which is opposite to the guide pulley 11, and further the problem that the rope end 22 contacts and extrudes to the guide pulley 11 is avoided.

The pull rope guiding structure 10 according to this embodiment further includes a limiting member 12, where the limiting member 12 is disposed between the two guiding pulleys 11, and can simultaneously block the notches of the pulley grooves 111 on both sides, so that the pull rope 21 disposed between the limiting member 12 and the guiding pulleys 11 cannot be separated from the pulley grooves 111.

Meanwhile, the limiting plate 14 provided in the embodiment of the application also has the function of protecting the limiting piece 12, and the rope end 22 of the tension rope 21 cannot contact with the limiting piece 12 in a normal working state due to the blocking of the limiting plate 14, so that the acting force of the tension rope 21 cannot be applied to the limiting piece 12.

However, the stopper 12 does not cover the entire pulley groove 111, and only one side of the pulley groove 111 is covered, so that the tension rope 21 between the guide pulley 11 and the stopper 12 can be limited to the pulley groove 111. This scheme sets up a locating part 12 and provides simultaneously and shelter from two direction pulley 11 pulley grooves 111, so when the wire winding, the pulling force rope 21 of both sides need to be followed the opposite side of two direction pulley 11 and is walked around for two pulling force ropes 21 all can be located between direction pulley 11 and the locating part 12.

In summary, the tensile cord guiding structure 10 of the present embodiment is provided with two guiding pulleys 11 at intervals, which can be used to provide guiding for two tensile forces, respectively, so as to provide support for the steering of the tensile cord 21. In this scheme, be provided with the locating part 12 between two direction pulleys 11, the notch of pulley groove 111 of both sides can be sheltered from simultaneously to the locating part 12 for the pulling force rope 21 that is arranged in pulley groove 111 can't follow the notch roll-off, has avoided the risk of pulling force rope 21 slippage completely. Importantly, two guide pulleys 11 of this scheme are close to each other and set up, only set up a locating part 12 between the two, alright provide spacingly for two pulling force ropes 21 of both sides simultaneously, so, on the basis that satisfies the anti-slipping demand, this scheme still has simple structure, advantage with low costs.

In one embodiment, the spacing between the surface of the stop member 12 and the notch edge of the pulley groove 111 is maintained, and the spacing between the surface of the stop member 12 and the notch edge of the pulley groove 111 is less than the diameter of the tension cord 21.

In actual use, the tension rope 21 passes around the guide pulley 11, and when the tension rope 21 is pulled, the tension rope 21 pushes the guide pulley 11 to rotate. In order to avoid friction between the limiting piece 12 and the guide pulley 11, the limiting piece 12 is fixed to the notch edge of the pulley groove 111, i.e. the limiting piece 12 is not in contact with the guide pulley 11. Meanwhile, referring to fig. 1, in order to prevent the tension rope 21 from slipping out of the gap between the stopper 12 and the guide pulley 11, the present embodiment sets the spacing S of the gap smaller than the diameter of the tension rope 21. The spacing S may be set according to the diameter of the tension cord 21 in the actual installation scenario for a particular application.

In the field of exercise equipment, the diameters of the tension ropes 21 used on exercise equipment of different specifications are different. In order to meet the use requirement of the multipurpose specification, the groove width of the pulley groove 111 of the guide pulley 11 in the embodiment is set to be larger than the maximum diameter value of the pull rope 21 commonly used in the market, and is preferably not smaller than 1.2cm; at the same time, the spacing S between the limiting piece 12 and the notch edge of the pulley groove 111 is set to be smaller than the minimum diameter value of the conventional tension rope 21 in the market, and preferably smaller than 2mm.

In one embodiment, the limiting member 12 includes a movably mounted limiting block 121, and the limiting block 121 can be moved relative to the guide pulley 11 to deviate from or block the pulley groove 111.

Specifically, when the limiting member 12 is fixed between the guide pulleys 11 on two sides, the end of the tension rope 21 can only pass through the pulley groove 111 between the limiting member 12 and the guide pulleys 11 during rope installation, and as the end of the tension rope 21 is generally connected with the rope end 22 convenient to be connected with other accessories, the rope end 22 needs to be detached first and then threaded, and then the rope end 22 is fastened again, so that the process is complicated, and the rope end 22 must be arranged to be detachable, so that the reliability is poor.

For this reason, the limiting piece 12 of the present embodiment is provided with a movable limiting block 121, before rope installation, the limiting block 121 can be moved away from the pulley groove 111, and at this time, the tension rope 21 can be easily placed in from the notch side of the pulley groove 111; and then resetting the limiting block 121 to enable the limiting block 121 to cover the notch of the pulley groove 111, so that the anti-falling purpose is realized. Obviously, this structure can be greatly convenient for the dismouting on the pulling force rope 21 and the pulling force rope guide structure of this scheme, but the fag end 22 fixed connection setting of pulling force rope 21 tip moreover, and the reliability is better.

In one embodiment, the limiting member 12 further includes a return spring 122, where the return spring 122 is connected to the limiting member 121 and is capable of pushing the limiting member 121 to maintain the position of the shielding pulley groove 111.

Specifically, the return spring 122 pushes the stopper 121 by its own elastic force, so that the stopper 121 can be held at a position where the pulley groove 111 is blocked. When the rope is assembled, the limiting block 121 can be manually shifted to move against the elasticity of the reset spring 122 so as to deviate from the pulley groove 111; after the tension rope 21 is put in, the manual acting force on the limiting block 121 is removed, and the limiting block 121 is pushed to movably reset under the action of the elastic force of the reset spring 122, so that the pulley groove 111 is shielded.

As can be seen from the above, the reset spring 122 is provided to keep the stopper 12 stable in this embodiment, which not only can provide enough space for the movement of the stopper 12, and achieve the purpose of facilitating the assembly and disassembly of the tension rope 21, but also can keep the stopper 12 from blocking the pulley groove 111.

In an embodiment, referring to fig. 4, the limiting member 12 further includes a guide post 123, the return spring 122 is sleeved outside the guide post 123, and one end of the return spring is fixed at the end of the guide post 123; the limiting block 121 is sleeved outside the return spring 122 and connected with the other end of the return spring 122.

The guide post 123 provides support and guide for the return spring 122 and the limiting block 121, so that the stability of the return spring 122 and the limiting block 121 can be ensured. Specifically, with the view of fig. 4, a through cavity is provided in the limiting block 121, and a limiting step is provided at the inner bottom side of the through cavity, through which the limiting block 121 is sleeved outside the guide post 123; the return spring 122 is sleeved outside the guide post 123 and is positioned in the through cavity of the limiting block 121, and the bottom end of the return spring is abutted against the limiting step; the limit nut is locked on the top end of the guide post 123 to limit the return spring 122 from being separated from the guide post 123 upwards. Thus, when the stopper 121 moves upward, the return spring 122 is pushed to compress; after the external force is removed, the return spring 122 will push the stopper 121 to move downward.

In one embodiment, the axles of the two guide pulleys 11 are disposed at an angle, and the sides of the limiting blocks 121 facing the pulley grooves 111 are parallel to the notches of the corresponding pulley grooves 111.

In one embodiment, referring to fig. 4, the tension rope guiding structure 10 includes a trapezoidal mounting base 13, the trapezoidal mounting base 13 has two opposite mounting inclined planes 131 and a mounting top surface 132 connected between the two mounting inclined planes 131, each mounting inclined plane 131 is provided with a pulley shaft 112, and each pulley shaft 112 is provided with a guiding pulley 11, so as to implement the mutual angular arrangement of the two guiding pulleys 11; the limiting member 12 is disposed on the mounting top surface 132.

The trapezoid mounting seat 13 is arranged to mount the guide pulleys 11 and the limiting piece 12, so that the inclination angle of the installation of the two guide pulleys 11 can be conveniently controlled, and the limiting piece 12 is easily placed between the two guide pulleys 11. Therefore, the structure has the advantages of convenient production and assembly of products.

In an embodiment, referring to fig. 3, 4 and 7, a limiting plate 14 is disposed on the trapezoidal mounting seat 13 corresponding to the rope outlet side of the guide pulley 11, two rope passing holes 141 are formed on the limiting plate 14, the size of the rope passing holes 141 is smaller than that of the rope end 22 connected to the end of the tension rope 21, the tension rope 21 passes through the rope passing holes 141, and the rope end 22 is limited on the side of the limiting plate 14 facing away from the guide pulley 11.

On the other hand, there is provided an exercise apparatus comprising a strength training device 20 and a tension rope guiding structure 10, wherein the strength training device 20 extends two tension ropes 21, and the two tension ropes 21 are respectively wound around the guiding pulleys 11 of the tension rope guiding structure 10 to be turned.

Specifically, the exercise device may be, but is not limited to, a rowing machine, a smith machine, a comprehensive training exercise machine, etc., and the strength training apparatus 20 may use a motor, an electromagnet, or a spring force as a resistance source, and output resistance through the two tension ropes 21, so that the user can pull the tension ropes 21 by overcoming the resistance of the strength training apparatus 20, thereby achieving the purpose of exercise training. When the direction in which the user pulls the tension rope 21 is different from the rope-out direction of the strength training device 20 or is interfered by other structures halfway, the tension rope 21 may be wound around the tension rope guide structure 10 to change the extending direction of the tension rope 21.

The body-building device of this embodiment adopts above pulling force rope guide structure 10, can prevent effectively that pulling force rope 21 from slipping from the guide pulley 11, has the advantage that the reliability is good.

In yet another aspect, referring to fig. 5-7, there is provided a rowing machine including a strength training device 20 and a rowing stool 30, a tension rope guide structure 10 is installed on the rowing stool 30, two tension ropes 21 are extended from the strength training device 20, and the two tension ropes 21 are simultaneously connected with a hand lever 34 located on the rowing stool 30 after bypassing the tension rope guide structure 10.

When the rowing machine of the embodiment is used, a user sits on the rowing stool 30, holds the hand pull rods 34 with two hands, and drives the body to move back and forth through waist and abdomen or legs so as to drive the hands to move back and forth; or the arm is forced to pull the hand pull rod 34 to move, the hand pull rod 34 can overcome the resistance of the strength training equipment 20 to pull the pull rope 21 to stretch and retract, so that the body-building training purpose is realized.

Similarly, the rowing machine of this embodiment adopts the above rope guiding structure 10, can prevent effectively that rope 21 from slipping from the guide pulley 11, has the advantage that the reliability is good.

It will be appreciated that the strength training device 20 may have different mounting patterns that will determine the rope payout direction of the strength training device 20, e.g., in the rowing machine configuration shown in fig. 5-6, the strength training device 20 is horizontal, lying on the ground, and the rope payout opening 23 is located on the top side, which can payout upward; in other embodiments, strength training device 20 may be vertical, with a rope outlet 23 located in the sidewall that may be oriented horizontally toward the outgoing rope. In practice, the tensile cord guide structure 10 may be adaptively installed according to the direction of the outgoing cord of the strength training apparatus 20 and the direction of the user's movement of the pull handle 34.

In one embodiment, referring to fig. 8, a rowing stool 30 includes a frame 31 and a slide plate 32; the frame 31 includes a front bracket 311, a rear bracket 312, and a cross bar 313 connected between the front bracket 311 and the rear bracket 312, and the carriage plate 32 is slidably mounted on the cross bar 313; the tension string guide structure 10 is mounted to the top end of the front bracket 311.

In use, a user sits on the slider plate 32 facing the front bracket 311, and the tension rope guide structure 10 is mounted on the top end of the front bracket 311, so that the tension rope 21 bypassing the tension rope guide structure 10 can be just connected with the hand lever 34 at the front end of the frame 31.

With respect to the sliding installation structure of the slide plate 32, referring to fig. 10, the bottom of the slide plate 32 is provided with roller frames 321, the roller frames 321 cover both sides of the cross bar 313, upper rollers 322 and lower rollers 323 are installed inside the roller frames 321, the upper rollers 322 are located above the cross bar 313, and the lower rollers 323 are located below the cross bar 313, so that the slide plate 32 can be restricted from being separated from the cross bar 313.

Further, the front bracket 311 is further provided with a rotatable pedal 33, and the pedal 33 can provide a platform for the user to put feet.

In one embodiment, the front bracket 311 is erected on the top of the strength training device 20, the top surface of the strength training device 20 is provided with two rope outlets 23 respectively located at the left and right sides of the front bracket 311, and two tension ropes 21 respectively extend from the two rope outlets 23.

The front bracket 311 is erected on the strength training equipment 20, on the basis of the self gravity of the strength training equipment 20, the strength training equipment 20 is pressed by the gravity of a user and the gravity of the rack 31, so that the relative movement of the rack 31 and the strength training equipment 20 in the using process can be avoided, and the stability of the rowing machine in the using process is ensured.

Preferably, anti-slip pads are respectively arranged at the bottoms of the front bracket 311 and the rear bracket 312.

In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and the like are merely for convenience of description and to simplify the operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for providing a special meaning.

In the description herein, reference to the term "one embodiment," "an example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in the foregoing embodiments, and that the embodiments described in the foregoing embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The technical principle of the present application is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the application and should not be taken in any way as limiting the scope of the application. Other embodiments of the application will be apparent to those skilled in the art from consideration of this specification without undue burden.

Claims (10)

1. A tension rope guide structure, comprising:

Two guide pulleys (11) which are arranged at intervals, wherein pulley grooves (111) capable of being provided with tension ropes (21) are formed in the periphery of the guide pulleys (11);

the wheel shafts of the two guide pulleys (11) are arranged at an angle;

The rope outlet side of the guide pulley (11) is provided with a limiting plate (14), two rope passing holes (141) are formed in the limiting plate (14), the size of each rope passing hole (141) is smaller than that of a rope head (22) connected with the end part of the tension rope (21), the tension rope (21) penetrates through the rope passing holes (141), and the rope heads (22) are limited on one side, opposite to the guide pulley (11), of the limiting plate (14).

2. The tension rope guide as claimed in claim 1, further comprising a stopper (12), the stopper (12) being disposed between the two guide pulleys (11) capable of simultaneously shielding the notch of the pulley groove (111) on both sides such that the tension rope (21) interposed between the stopper (12) and the guide pulleys (11) cannot be separated from the pulley groove (111).

3. The tension rope guide as claimed in claim 2, wherein a distance is maintained between the surface of the stopper (12) and the notch edge of the pulley groove (111), and a distance between the surface of the stopper (12) and the notch edge of the pulley groove (111) is smaller than a diameter of the tension rope (21).

4. A tensile cord guiding structure according to claim 2 or 3, characterized in that the limit piece (12) comprises a movably mounted limit piece (121), which limit piece (121) is movable relative to the guide pulley (11) to deviate or block the pulley groove (111).

5. The tension rope guide as claimed in claim 4, wherein the stopper (12) further comprises a return spring (122), the return spring (122) being connected to the stopper (121) and being capable of pushing the stopper (121) to be held in a position of shielding the pulley groove (111).

6. The tension rope guide as claimed in claim 4, wherein a side edge of the stopper (121) facing the pulley groove (111) is kept parallel to a notch of the corresponding pulley groove (111).

7. The tension rope guiding structure as recited in claim 6, comprising a trapezoidal mounting base (13), the trapezoidal mounting base (13) having two opposite mounting slopes (131) and a mounting top surface (132) connected between the two mounting slopes (131), each mounting slope (131) being provided with a pulley axle (112), each pulley axle (112) being provided with a guiding pulley (11) for the mutual angular arrangement of the two guiding pulleys (11); the limiting piece (12) is arranged on the mounting top surface (132).

8. An exercise device, characterized by comprising a strength training device (20) and a tension rope guiding structure (10) according to any one of claims 1-7, wherein two tension ropes (21) extend from the strength training device (20), and the two tension ropes (21) are respectively wound around a guiding pulley (11) of the tension rope guiding structure (10) to turn.

9. The rowing machine is characterized by comprising a strength training device (20) and a rowing stool (30), wherein the rowing stool (30) is provided with the tension rope guide structure (10) according to any one of claims 1-7, the strength training device (20) extends out of two tension ropes (21), and the two tension ropes (21) are connected with a hand pull rod (34) arranged on the rowing stool (30) after bypassing the tension rope guide structure (10).

10. Rowing machine according to claim 9, characterized in that the rowing bench (30) comprises a frame (31) and a slide plate (32); the rack (31) comprises a front bracket (311), a rear bracket (312) and a cross bar (313) connected between the front bracket (311) and the rear bracket (312), and the sliding seat plate (32) is slidably arranged on the cross bar (313); the tension rope guide structure (10) is arranged at the top end of the front bracket (311); the front support (311) is erected at the top of the strength training equipment (20), two rope outlets (23) are respectively arranged on the top surface of the strength training equipment (20) and are respectively positioned on the left side and the right side of the front support (311), and two tension ropes (21) respectively extend from the two rope outlets (23).