CN113230582B - Water resistance rowing machine - Google Patents

Abstract

The invention relates to the field of fitness equipment, in particular to a water resistance rowing machine which comprises a rack, a seat, a water resistance adjusting mechanism, a pull rope mechanism and an elastic reset component, wherein the seat, the water resistance adjusting mechanism, the pull rope mechanism and the elastic reset component are arranged on the rack; the water resistance adjusting mechanism comprises a water tank and a blade assembly arranged in the water tank; the paddle component comprises a paddle shaft and a paddle disk which is fixedly connected to the lower end part of the paddle shaft, and a plurality of blades are circumferentially arranged on the outer side of a disk body of the paddle disk; on the one hand, the water resistance rowing machine also enhances the overall strength on the basis of simplifying the working procedures in the blade assembly; on the other hand, the left pull rope and the right pull rope in the pull rope mechanism can not only move synchronously, but also move separately, so that arms on one side can be exercised or pulled in a left-right staggered manner, and the feeling during movement is closer to the real rowing feeling.

Description

Water resistance rowing machine

Technical Field

The invention relates to the field of fitness equipment, in particular to a water resistance rowing machine.

Background

Along with the enhancement of health consciousness of people, body building is popular, more people also add in various body building lines, body building equipment is also glaucous on the world, a rowing machine is an aerobic exercise machine for improving comprehensive capacity, the exercise is similar to a kayak, and 80% of muscles of a body are exercised by utilizing the change of resistance and the rotating speed of a rotating wheel in a short time during exercise, so that the body can be comprehensively exercised. Rowing machines are also known as rowing machines, dynamometer, land rowing machines, indoor rowing machines. The rowing machine is a machine for simulating the movement of a water racing boat for the purpose of training; the existing rowing machine mainly adopts three resistance modes of wind resistance, magnetic resistance and water resistance, wherein the water resistance rowing machine has an optimal simulation technology and can make people feel the vision, sound and feeling of real rowing; a smooth, progressive and satisfactory stroke motion is experienced.

The water resistance rowing machine drives the blade disc to rotate through the pull rope, and the blades on the periphery of the blade disc hit liquid in the water tank, so that resistance is generated in the movement process, and the body building purpose is achieved. The current rowing machine is a novel water resistance rowing machine as described in the chinese utility model patent with publication number CN209237253U, which comprises a main frame, the top right side of main frame is provided with the slide rail, the inside movable mounting of slide rail has the cushion part that one end runs through and extends to the slide rail top, the top left side fixed mounting of main frame has the water tank, the inside movable mounting of water tank has the paddle part that one end runs through and extends to the water tank top. User's buttock is sat on the cushion part, the foot is stepped on the running-board, thereby can pull up the locating pin according to the size of foot and make the fender sole slide along the running-board front and back until comfortable position, then loosen the locating pin, make it fall into the locating hole of running-board, both hands are held and are pulled hand (hold) to rib lower extreme, the wind spring is rotated through the coil spring axle and is tightened up this moment, the hand (hold) passes through transmission meshbelt rotation band pulley and kinks the band pulley, it rotates because one-way bearing effect drive main shaft to twine the band pulley, the main shaft drives paddle part and rotates, the resistance that utilizes the water in the water tank to produce realizes taking exercise effect

However, the transmission structure of the existing rowing machine is single transmission, when in use, the pull handle is held by the left hand and the right hand, the left hand and the right hand are pulled synchronously, the exercise mode is single, and no more motion forms can be selected by a user.

In addition, the water resistance rowing machine drives the blade disc to rotate through the pull rope, and the blades on the periphery of the blade disc hit liquid in the water tank, so that resistance is generated in the movement process, and the body building purpose is achieved. The paddle shaft 32 and the paddle disc 33 in the existing water resistance rowing machine are connected by adopting the technical scheme shown in fig. 1, the lower end part of the paddle shaft 32 penetrates through the center of the paddle disc 33 and is fixedly connected through a plurality of fixing pins 301, although the structure can connect the paddle disc and the paddle shaft, the connection and installation are inconvenient, the connection port is damaged due to the fact that the center of the paddle connection port is not aligned when the pins are plugged in, and the connection strength of the paddle disc and the paddle shaft is insufficient.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a water-resistant rowing machine, which, on the one hand, enhances the overall strength on the basis of simplifying the processes in the blade assembly; on the other hand, the left pull rope and the right pull rope in the pull rope mechanism can not only move synchronously, but also move separately, so that arms on one side can be exercised or pulled in a left-right staggered manner, and the feeling during movement is closer to the real boating feeling.

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

the water resistance rowing machine comprises a rack, and a seat, a water resistance adjusting mechanism, a pull rope mechanism and an elastic resetting component which are arranged on the rack; the water resistance adjusting mechanism comprises a water tank and a blade assembly arranged in the water tank; the method is characterized in that: the paddle component comprises a paddle shaft and a paddle disk which is fixedly connected to the lower end part of the paddle shaft, and a plurality of blades are circumferentially arranged on the outer side of a disk body of the paddle disk; the upper end of the paddle shaft extends out of the water tank, the lower end of the paddle shaft is fixedly connected with a connecting piece, the center of the disc body of the paddle disc is integrally connected to the lower end of the paddle shaft in an injection molding mode, and the center of the disc body of the paddle disc is at least covered and molded on the connecting piece and the outer side of the side wall of the lower end of the paddle shaft; the pull rope mechanism comprises a left pull rope, a right pull rope, a left handle and a right handle, wherein the left handle and the right handle are respectively connected to the outer end portions of the left pull rope and the right pull rope, the left pull rope and the right pull rope are respectively connected with the paddle shaft through one-way winding assemblies, and the output end of the elastic reset assembly is respectively connected with two groups of one-way winding assemblies.

The invention adopts the technical scheme, and relates to a water resistance rowing machine, which comprises a rope pulling mechanism and an elastic reset component, wherein the rope pulling mechanism and the elastic reset component are connected to a water resistance adjusting mechanism, the outer end part of the rope pulling mechanism is held by a hand of a user, the water resistance rowing machine generates resistance to exercise of the user by striking water in a water tank through blades on a paddle disk, and the elastic reset component drives the rope pulling mechanism to reset. The water resistance rowing machine has the following two advantages:

1, the lower end part of a blade shaft in the blade assembly is connected with a blade disc in an integrated injection molding mode through a connecting piece, so that the assembling process of the blade assembly is saved, and the connecting strength of the blade shaft and the blade disc is improved. Specifically, the blade shaft and the blade disc in the conventional solution need to be connected by the solution described in the background art after being separately injection molded, which has the technical problem described in the background art. When the scheme of the structure is processed, the connecting sheet is connected to the lower end part of the blade shaft after the blade shaft is subjected to injection molding, then the blade shaft is placed into an injection molding machine of the blade disc, and the blade disc and the blade shaft are integrally connected and fixed through the connecting sheet after the blade disc is subjected to injection molding.

Compared with the prior art, the scheme saves the process of connecting and fixing the blade shaft and the blade disc, and is simpler in comparison with the process of assembling the connecting piece to the lower end of the blade shaft although the process is increased. It is also known that the strength of the integral injection connection is necessarily stronger than the connection strength of the pin connection. Therefore, the scheme also enhances the overall strength on the basis of simplifying the process.

2, the pull rope mechanism in the prior art is formed by connecting a single holding rod with a blade shaft through a single pull rope, and has the technical defects recorded in the background art. The scheme is different from the prior art in that the pull rope mechanism comprises a left pull rope and a right pull rope, and the left pull rope and the right pull rope are respectively connected with a paddle shaft through a one-way winding assembly; during the use, stay cord about the user's both hands can be gripped respectively, and stay cord about pulling respectively through controlling both hands, not only can synchronous motion, can also the motion of separately, can temper or control crisscross pulling to the arm of unilateral to the impression when making the motion is more close to real rowing sensation.

Preferably, the rope pulling mechanism further comprises a connecting rod, two end parts of the connecting rod are detachably connected with the left handle and the right handle, and the left handle and the right handle can be linked through the connecting rod; the rack is provided with a clamping seat, and the connecting rod is clamped and fixed on the clamping seat; the left handle and the right handle comprise holding pipes for being sleeved with the end portions of the connecting rods, positioning columns are arranged on the rod bodies of the connecting rods, and positioning grooves matched with the positioning columns are formed in the inner walls of the holding pipes. On the basis of the scheme, the left handle and the right handle can be fixedly connected through the connecting rod, so that the exercise mode that the pull rope mechanism is synchronously pulled by both hands in the existing water resistance rowing machine can be realized. And, the cassette can be used to the location and place the connecting rod in this scheme, is convenient for store when accomodating or not using the connecting rod. Furthermore, the positioning column of the connecting rod and the positioning groove in the inner wall of the holding pipe can realize rapid positioning and butt joint, so that the left handle and the right handle are connected and fixed.

Preferably, the left side and the right side of the rack are respectively provided with a swing rod, and the left handle and the right handle can be connected with the movable ends of the two swing rods in a buckling mode. In the scheme, the swing rods are hinged to the frame, the left handle and the right handle are clamped at the movable ends of the two swing rods, and a user can swing the swing rods, which is similar to the action of rowing on a racing boat.

Preferably, the elastic reset assembly comprises two elastic ropes, one ends of the two elastic ropes are fixed on the rack, and the other ends of the two elastic ropes are respectively wound on the two unidirectional winding assemblies. In the technical scheme, the elastic rope is always in a tight state, and when a user pulls the unidirectional winding assembly through the left and right pull ropes, the unidirectional winding assembly is driven to rotate along with a blade shaft connected with the unidirectional winding assembly, and the elastic rope is further stretched; when the blade is reset, the elastic force restored by the elastic rope drives the unidirectional winding component to reversely reset and rotate (because the unidirectional winding component and the blade shaft rotate in a unidirectional way, the blade shaft cannot be driven to reversely rotate).

Preferably, the two groups of unidirectional winding assemblies are sleeved on the blade shaft up and down along the shaft, the blade shaft between the two groups of unidirectional winding assemblies is sleeved with the spacer sleeve, and the blade shafts on the upper side and the lower side of the two groups of unidirectional winding assemblies are axially positioned through the retaining ring; and the paddle shafts on the upper side and the lower side of the two groups of unidirectional winding assemblies are positioned on the fastening sleeve through bearings.

Preferably, the unidirectional winding assembly comprises an elastic rope iron sleeve, a unidirectional wheel and a bearing which are arranged in the elastic rope iron sleeve, and a wire rotating wheel sleeved outside the elastic rope iron sleeve; the elastic rope and the left/right pulling rope are respectively wound on the side surface of the wheel body of the wire rotating wheel. Among the above-mentioned technical scheme, the paddle axle passes through the bearing location on fastening sleeve (connect in the frame), and two sets of one-way wire winding subassemblies cup joint respectively on the paddle axle for one-way drive paddle axle respectively, two sets of one-way wire winding subassemblies between the spacer bush avoid two sets of one-way wire winding subassemblies to interfere with each other. In the unidirectional winding assembly, the elastic rope iron sleeve is used for increasing the strength of the mechanism, the unidirectional wheel is connected with the paddle shaft in a unidirectional mode, and the paddle shaft is driven to rotate only when the left pull rope/the right pull rope pulls the unidirectional winding assembly.

Preferably, the connecting piece is a connecting piece, and the center of the connecting piece is connected to the lower shaft end face of the blade shaft; the blade body diameter of the connecting sheet is larger than the lower end diameter of the blade shaft, and the disk body center of the blade disk is wrapped on the connecting sheet and the outer side of the side wall of the blade shaft above the connecting sheet. In the technical scheme, the connecting piece is selected as the connecting piece which is sheet-shaped, the injection molding thickness of the blade disc is basically not influenced, and the center of the disc body of the blade disc is easily coated on the connecting piece. Furthermore, the diameter of the sheet body of the connecting sheet is larger than that of the lower end of the blade shaft, the welding area of the blade shaft and the blade disc in the axial direction is increased through the connecting sheet, and therefore the axial connecting strength is stronger. Finally, the center of the disc body of the paddle disc in the scheme is coated and molded on the connecting sheet and the outer side of the side wall of the paddle shaft above the connecting sheet, namely the center of the disc body of the paddle disc is not only connected with the connecting sheet in an injection molding manner, but also connected with the side wall of the paddle shaft in an injection molding manner; thereby further improving the connection strength.

Preferably, the sheet body of the connecting sheet is provided with a through hole penetrating through the upper end surface and the lower end surface of the sheet body; the number of the through holes is multiple, and the multiple through holes are regularly/irregularly arranged on the sheet body of the connecting sheet along the circumferential direction; the edge of the outer side wall of the sheet body of the connecting sheet is provided with a lug outwards in the radial direction and/or is provided with a notch inwards in the radial direction; the lug and/or the notch are multiple, and the multiple lugs and/or notches are circumferentially arranged on the edge of the outer side wall of the connecting piece.

On the basis of the scheme, the through hole penetrating through the upper end face and the lower end face of the connecting sheet body is formed in the connecting sheet body, when the paddle disk is subjected to injection molding, the injection molding material can flow into and fill the through hole, so that after the paddle disk is subjected to injection molding, the injection molding materials on the upper side and the lower side of the connecting sheet are connected through the material in the through hole, and the injection molding connection strength is guaranteed. The edge of the outer side wall of the sheet body of the connecting sheet is provided with a lug and/or a notch. When moulding plastics, the lug can regard to imbed in the material of moulding plastics of its outside, and the material of moulding plastics also can flow into in the notch, so the connection piece is rather than the peripheral paddle dish looks embedded connection after injection moulding, reinforcing connection strength on the circumference.

Preferably, the connecting piece is fixedly connected to the lower shaft end face of the blade shaft through a screw fixing component, and the center of the disc body of the blade disc is further coated and molded on the outer side of the screw fixing component. In the technical scheme, the screw fixing part is also injected into the center of the disc body of the blade disc, and the blade assembly after injection molding is an integral body and cannot be disassembled; therefore, the connection between the blade shaft and the blade disc is prevented from being loosened under the action of external force exerted by the screwing component.

Preferably, the rack is provided with a display adjusting seat, and the display adjusting seat comprises a bracket connected to the rack and a fixing plate connected to the bracket through an adjusting mechanism; the method is characterized in that: the adjusting mechanism comprises an adjusting link rod and a plurality of groups of elastic locking assemblies, and the upper end part of the bracket and the fixing plate are respectively connected with the two end parts of the adjusting link rod through at least one group of elastic locking assemblies; based on the elastic locking assembly, the adjusting link rod can rotate or be locked relative to the upper end part of the bracket along the hinged end of the bracket, and the fixing plate can rotate or be locked relative to the adjusting link rod along the hinged end of the bracket.

The bracket in the display adjusting seat is used for being connected to a frame of the fitness equipment, and the fixing plate is used for fixedly mounting the display; different from the prior art, the fixing plate and the bracket in the scheme are connected by virtue of the adjusting mechanism, the fixing plate and the display on the fixing plate can rotate relative to the adjusting link rod to carry out first-stage adjustment, and the adjusting link rod can also rotate relative to the bracket to carry out second-stage adjustment; through the two-stage adjustment, the display can be adjusted in a larger range, and users with different body types and different exercise habits can adjust the height and the angle of the display according to the visual field positions of the users when using the fitness equipment, so that the fitness is wider. On the basis, the two parts connected with each other can be controlled to rotate or be locked with each other based on the elastic locking assembly, so that the display adjusting seat can be in a positioning state when not adjusted, namely, the display is locked after being highly positioned, and the problems of unstable and loose position of the display are avoided.

Drawings

FIG. 1 is a schematic structural view of a prior art blade assembly.

FIG. 2 is a schematic structural view of the water resistance rowing machine according to the present invention.

Fig. 3 is a schematic structural diagram of a blade assembly related to the invention.

Fig. 4 is an exploded view of the structure of the blade assembly.

Fig. 5 is a structural diagram of the connecting piece.

FIG. 6 is a structural cross-sectional view of the blade assembly.

Fig. 7 is an enlarged view of a portion a of fig. 6.

Fig. 8 is an exploded view of the unidirectional wire winding assembly.

Fig. 9 is a schematic view of the connection of the connecting rod and the left and right handles.

FIG. 10 is a schematic view showing the structure of the water resistance rowing machine in a state where the left and right handles are simultaneously pulled.

FIG. 11 is a schematic view of the water-resistant rowing machine in a state where the left and right handles are pulled alternately.

FIG. 12 is a schematic view showing the structure of the rowing machine with the water resistance in a state where the left and right handles are connected by the link lever and pulled synchronously.

FIG. 13 is a schematic structural view of the water resistance rowing machine in a state where the left and right handles are synchronously pulled by using the swing link.

FIG. 14 is a schematic structural view of the water resistance rowing machine in a state where the left and right handles are alternately pulled by using the swing link.

Fig. 15 is a schematic structural view of the display adjusting seat according to the present invention in a storage state.

Fig. 16 is a structural diagram of the display adjusting seat in a spreading state.

Fig. 17 is an exploded view of the structure of the adjustment seat of the display.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-17, the present embodiment relates to a water resistance rowing machine, which comprises a frame 1, and a seat 2, a water resistance adjusting mechanism, a rope pulling mechanism and an elastic resetting component which are arranged on the frame 1; the water resistance adjusting mechanism comprises a water tank 31 and a blade assembly arranged in the water tank 31. The blade assembly comprises a blade shaft 32 and a blade disc 33 which is fixedly connected to the lower end part of the blade shaft 32; the upper end of the paddle shaft 32 extends out of the water tank 31, and a plurality of blades 34 are circumferentially arranged on the outer side of the disc body of the paddle disc 33. The water resistance rowing machine comprises a rope pulling mechanism and an elastic reset assembly, wherein the rope pulling mechanism and the elastic reset assembly are used for being connected to a water resistance adjusting mechanism, the outer end part of the rope pulling mechanism is used for being held by a hand of a user, the water resistance rowing machine generates resistance by beating water in a water tank 31 through blades 34 on a paddle disc 33, the resistance is provided for body building of the user, and the elastic reset assembly drives the rope pulling mechanism to reset.

As shown in fig. 4 and 5, a connector is fixedly connected to the lower end of the blade shaft 32, the center of the disc body of the blade disc 33 is integrally connected to the lower end of the blade shaft 32 by injection molding, and the center of the disc body of the blade disc 33 is at least covered and molded on the outer side of the connector and the sidewall of the lower end of the blade shaft 32. The lower end part of the blade shaft 32 in the blade assembly is connected with the blade disc 33 through a connecting piece in an integral injection molding mode, so that the assembling process of the blade assembly is saved, and the connecting strength of the blade shaft 32 and the blade disc 33 is improved. Specifically, the blade shaft 32 and the blade disc 33 in the conventional solution need to be connected by the solution as described in the background art after being separately injection molded, which has the technical problem as described in the background art. In the scheme of the structure, during processing, after the paddle shaft 32 is subjected to injection molding, the connecting piece is connected to the lower end part of the paddle shaft 32 and then placed in an injection molding machine of the paddle disk 33, and after the paddle disk 33 is subjected to injection molding, the connecting piece and the paddle shaft 32 are integrally connected and fixed through the connecting piece.

In this way, it can be seen that the above solution saves the process of connecting and fixing the blade shaft 32 and the blade disc 33, which is simpler in comparison to the process of assembling the connecting member to the lower end of the blade shaft 32, although it adds a process. It is also known that the strength of the integral injection connection is necessarily stronger than the connection strength of the pin connection. Therefore, the scheme also enhances the overall strength on the basis of simplifying the process.

In the embodiment shown in fig. 4-6, the connecting member is a connecting piece 35, the connecting piece 35 is fixedly connected to the lower axial end face of the blade shaft 32 through a screw-fastening member, and the disk center of the blade disk 33 is further wrapped on the outer side of the screw-fastening member 36. In this technical solution, the screw-fastening part 36 is also injection-molded in the center of the disk body of the blade disk 33, and the injection-molded blade assembly is an integral body and is not detachable. This prevents the screw fastening part 36 from being exposed to external forces and loosening the connection between the blade shaft 32 and the blade disk 33.

As shown in fig. 6 and 7, the center of the connecting piece 35 is connected to the lower axial end face of the blade shaft 32. The diameter of the connecting piece 35 is larger than the diameter of the lower end of the blade shaft 32, and the center of the blade disc 33 is covered and molded on the connecting piece 35 and the outer side of the side wall of the blade shaft 32 above the connecting piece. In the technical scheme, the connecting piece is selected as the connecting piece 35, the connecting piece 35 is in a sheet shape, the injection molding thickness of the blade disc 33 is basically not influenced, and the center of the disc body of the blade disc 33 is more easily coated on the connecting piece 35. Further, the blade body diameter of the connecting piece 35 is larger than the lower end diameter of the blade shaft 32, and the welding area of the blade shaft 32 and the blade disc 33 in the axial direction is increased through the connecting piece 35, so that the axial connecting strength is stronger. Finally, the disk body center of the blade disk 33 in the scheme is coated and molded on the connecting piece 35 and the outer side of the side wall of the blade shaft 32 above the connecting piece, namely, the disk body center of the blade disk 33 is not only connected with the connecting piece 35 in an injection molding mode, but also connected with the side wall of the blade shaft 32 in an injection molding mode, and therefore the connecting strength is further improved.

Furthermore, the connecting sheet 35 is provided with a through hole 351 penetrating through the upper and lower end surfaces thereof. The number of the through holes 351 is plural, and the plural number is regularly/irregularly arranged on the sheet body of the connecting sheet 35 along the circumferential direction. On the basis of the scheme, the through hole 351 penetrating through the upper end face and the lower end face of the connecting sheet 35 is formed in the sheet body of the connecting sheet 35, when the paddle disk 33 is molded in an injection mode, the injection molding material can flow into and fill the through hole 351, so that after the paddle disk 33 is molded in an injection mode, the injection molding materials on the upper side and the lower side of the connecting sheet 35 are connected through the material in the through hole 351, and the injection molding connection strength is guaranteed.

The sheet body outer side wall edge of the connecting sheet 35 is provided with a lug radially outwards and/or provided with a notch 352 radially inwards. The protrusions and/or recesses 352 are plural, and the plural protrusions and/or recesses 352 are circumferentially arranged on the blade outer side wall edge of the connecting piece 35. On the basis of the above solution, the solution is provided with a bump and/or a notch 352 at the edge of the sheet outer side wall of the connecting sheet 35. During injection molding, the convex block can be embedded into the injection molding material on the outer side of the convex block, and the injection molding material can also flow into the notch 352, so that the connecting sheet 35 is embedded and connected with the blade disc 33 on the periphery of the connecting sheet after injection molding, and the connection strength in the circumferential direction is enhanced.

The pull rope mechanism in the prior art is formed by connecting a single holding rod with the paddle shaft 32 through a single pull rope, and has the technical defects recorded in the background art. In a further embodiment shown in fig. 10 to 14, the rope pulling mechanism comprises left and right pulling ropes 41 and left and right handles 42 respectively connected to outer ends of the left and right pulling ropes 41, and the left and right pulling ropes 41 are respectively connected to the paddle shaft 32 through one-way winding assemblies 43. During the use, stay cord 41 about can holding respectively by user's both hands, through stay cord 41 about the both hands pulling respectively about controlling, not only can the synchronous motion, can also the split motion, can temper or control crisscross pulling to the arm of unilateral to the impression when making the motion is more close to real rowing sensation.

As shown in fig. 6, the output ends of the elastic reset components are respectively connected to two sets of unidirectional winding components 43. In a specific embodiment, the elastic resetting component comprises two elastic ropes 5, one end of each of the two elastic ropes 5 is fixed on the frame 1, and the other end of each of the two elastic ropes 5 is wound on two unidirectional winding components 43. In the technical scheme, the elastic rope 5 is always in a tight state, when a user pulls the unidirectional winding assembly 43 through the left and right pulling ropes 41, the unidirectional winding assembly 43 is driven to rotate with the connected blade shaft 32, and the elastic rope 5 is further stretched. When resetting, the elastic force of the elastic rope 5 drives the unidirectional winding assembly 43 to reversely reset and rotate (because the unidirectional winding assembly rotates with the paddle shaft 32 in a unidirectional way, the paddle shaft 32 cannot be driven to reversely rotate).

In the embodiment shown in fig. 6, the two unidirectional winding assemblies 43 are sleeved on the blade shaft 32 up and down along the shaft, the spacer 44 is sleeved on the blade shaft 32 between the two unidirectional winding assemblies 43, and the blade shafts 32 on the upper and lower sides of the two unidirectional winding assemblies 43 are axially positioned by the retaining ring. And the blade shafts 32 on the upper and lower sides of the two sets of unidirectional winding assemblies 43 are also positioned on the fastening sleeve 46 through bearings 45. The unidirectional winding assembly 43 comprises an elastic cord iron sleeve 47, a unidirectional wheel 48 and a bearing 45 which are arranged inside the elastic cord iron sleeve 47, and a wire rotating wheel 49 which is sleeved outside the elastic cord iron sleeve 47. The elastic rope 5 and the left/right pulling rope are respectively wound on the side surface of the wheel body of the wire rotating wheel 49. In the above technical solution, the paddle shaft 32 is positioned on the fastening sleeve 46 (connected to the frame 1) through the bearing 45, the two sets of unidirectional winding assemblies 43 are respectively sleeved on the paddle shaft 32 for respectively driving the paddle shaft 32 in a unidirectional manner, and the spacer 44 between the two sets of unidirectional winding assemblies 43 prevents the two sets of unidirectional winding assemblies 43 from interfering with each other. In the unidirectional winding assembly 43, the elastic cord iron sleeve 47 is used for enhancing the strength of the mechanism, the unidirectional wheel 48 is used for ensuring unidirectional connection with the paddle shaft 32, and the paddle shaft 32 is driven to rotate only when the left/right pulling ropes pull the unidirectional winding assembly 43.

On the basis of the scheme, the rope pulling mechanism can also adopt the following technical scheme:

as shown in fig. 9, the pull-cord mechanism further includes a link 401, both ends of the link 401 are detachably connected to the left and right handles 42, and the left and right handles 42 can be linked by the link 401. On the basis of the scheme, the left handle 42 and the right handle 42 can be fixedly connected through the connecting rod 401, so that the exercise mode that the pull rope mechanism is synchronously pulled by both hands in the existing water resistance rowing machine can be realized. In this scheme, the frame 1 is provided with a clamping seat 11, and the connecting rod 401 is clamped and fixed on the clamping seat 11. Handle 42 all includes the pipe 421 that holds that is used for cup jointing connecting rod 401 tip, is equipped with reference column 423 on the body of rod of connecting rod 401, holds and is equipped with the constant head tank with reference column 423 looks adaptation in the inner wall of pipe 421. On the basis of the above scheme, the clamping seat 11 can be used for positioning and placing the connecting rod 401, and is convenient to store when the connecting rod 401 is stored or not used. Further, the positioning column 423 of the connecting rod 401 and the positioning groove in the inner wall of the holding tube 421 can realize rapid positioning and butt joint, so that the left and right handles 42 are connected and fixed.

As shown in fig. 13 and 14, the left and right sides of the frame 1 are respectively provided with a swing rod 402, and the left and right handles 42 can be connected with the movable ends of the swing rods 402 by a snap fit. In the scheme, the swing rod 402 is hinged on the frame 1, the left handle 42 and the right handle 42 are connected to the movable ends of the swing rods 402 in a clamping manner, and a user can swing the swing rods 402, which is similar to the action of rowing on a racing boat. In this embodiment, the connection manner between the left and right handles 42 and the connecting rod 401 can be referred to as the snap connection manner between the left and right handles 42 and the end of the swing link 402. As shown in fig. 11, the swing lever 402 can be stored in the rack 1 when not in use.

Finally, various rowing structures of the rope pulling mechanism can be integrated in the same equipment, as shown in the attached drawings of the scheme; based on the water resistance rowing machine, the following body building modes can be specifically adopted:

1, as shown in fig. 10, an exercise mode in which only the left and right handles 42 are synchronously pulled;

2, as shown in fig. 11, only the exercise mode of pulling the left and right handles 42 in a staggered manner is used;

3, in the drawing, on the basis of the mode 2, only the left/right handles are pulled to exercise the single arm;

4, as shown in fig. 12, a body-building mode that the left and right handles 42 are connected and pulled synchronously by adopting a connecting rod 401;

5, as shown in fig. 13, adopting a body-building mode that the left and right handles 42 are synchronously pulled under the condition of the swing rod 402;

6, as shown in fig. 14, the exercise mode that the left and right handles 42 are pulled alternately under the condition of the swing rod 402 is adopted.

As shown in fig. 10 and 15-17, the frame 1 is provided with a display adjusting base 6, and the display adjusting base 6 includes a bracket 61 for connecting to the frame 1, and a fixing plate 62 connected to the bracket 61 through an adjusting mechanism. The adjusting mechanism comprises an adjusting link 63 and a plurality of sets of elastic locking assemblies 64, and the upper end of the bracket 61 and the fixing plate 62 are respectively connected with two ends of the adjusting link 63 through at least one set of elastic locking assemblies 64. Based on the elastic locking assembly 64, the adjusting link 63 can be rotated or locked along the hinge end thereof with respect to the upper end portion of the bracket 61, and the fixing plate 62 can be rotated or locked along the hinge end thereof with respect to the adjusting link 63. The bracket 61 in the display adjusting seat 6 is used for connecting to the frame 1 of the body-building apparatus, and the fixing plate 62 is used for fixedly mounting the display. Unlike the prior art, in this solution, the fixed plate 62 is connected to the bracket 61 by an adjusting mechanism, the fixed plate 62 and the display thereon can rotate relative to the adjusting link 63 for a first-stage adjustment, and the adjusting link 63 can also rotate relative to the bracket 61 for a second-stage adjustment. Through the two-stage adjustment, the display can be adjusted in a larger range, and users with different body types and different exercise habits can adjust the height and the angle of the display according to the visual field positions of the users when using the fitness equipment, so that the fitness is wider. The display adjusting seat 6 can be adapted to various different fitness modes generated by the change of the pull rope mechanism. On the basis, whether the two parts connected with each other can be controlled to rotate or be locked with each other based on the elastic locking assembly 64, so that the display adjusting seat 6 can be in a positioning state when not adjusted, namely, the display is locked after being positioned at the height, and the problems of unstable and loose display position are avoided.

In a specific embodiment, the elastic locking assembly 64 includes a fixing block 641 capable of moving in an axial direction thereof, an elastic member 642, and a button 643, and the fixing block 641 is circumferentially symmetrical along a center point thereof. Each fixing block 641 is circumferentially positioned with at least one of the adjusting link 63 and the bracket 61 or one of the adjusting link 63 and the fixing plate 62 all the time, and the fixing block 641 can be circumferentially positioned or unlocked with the other of the adjusting link 63 and the bracket 61 or the other of the adjusting link 63 and the fixing plate 62 during the axial movement process. In this embodiment, one of the adjusting link 63 and the bracket 61 and the fixing block 641 are circumferentially positioned all the time, and the other of the adjusting link 63 and the bracket 61 is circumferentially positioned or unlocked with the fixing block 641 in the axial movement process of the fixing block 641. Thus, the position of the fixing block 641, which is moved axially, can control whether the adjusting link 63 is locked or unlocked with respect to the bracket 61. The adjustment between the adjustment link 63 and the fixed plate 62 is performed in the same manner. The elastic member 642 is a spring as shown in the figure, a deformation end of the elastic member 642 axially acts on an inner end side of the fixed block 641, and the button 643 abuts against an outer end side of the fixed block 641. When the fixing block 641 is only subjected to the elastic force of the elastic member 642, the adjusting link 63 and the bracket 61, or the adjusting link 63 and the fixing plate 62 are locked by the fixing block 641. When an external force is applied to the button 643 to drive the fixed block 641 to move axially, the adjusting link 63 and the bracket 61, or the adjusting link 63 and the fixed plate 62, can rotate relative to each other. On the basis of the above solution, the elastic locking assembly 64 further includes an elastic member 642 and a button 643, and the external force applied to the button 643 and the elastic force of the elastic member 642 are used to control the axial position of the fixed block 641. When no external force is applied, the fixing block 641 locks the adjusting link 63 and the bracket 61, or the adjusting link 63 and the fixing plate 62, against the elastic force of the elastic member 642. While when an external force is applied to the button 643, unlocking and rotational adjustment can be achieved.

As shown in fig. 16, the bracket 61 has a first insertion groove 611 formed in an upper end thereof, and the end of the adjusting link 63 is hinged to a top of the first insertion groove 611. The adjusting link 63 is rotatable along its hinge end and is received inside the first insertion groove 611. In this technical scheme, adjusting link 63 rotates relative to support 61 and can accomodate in first inlaying groove 611, and display adjusting seat 6 occupation space under this state is less, is convenient for store and transport. The side wall of the first end of the adjusting link 63 is provided with a first positioning groove 631, the side wall of the bracket 61 of the first embedded groove 611 is provided with a second positioning groove 632 corresponding to the first positioning groove 631, and the second positioning groove 632 is provided with a shaft hole 633. The fixing block 641 is located in the first positioning groove 631, is circumferentially positioned with the first positioning groove 631, and is axially movable relative thereto, the elastic member 642 is located in the first positioning groove 631 in the fixing block 641, and the button 643 is inserted into the shaft hole 633. When at least a portion of the fixing block 641 extends into the second positioning slot 632, the adjusting link 63 is locked with the bracket 61. When an external force is applied to the button 643 to drive the fixing block 641 to move axially out of the second positioning slot 632, the adjusting link 63 and the bracket 61 can rotate relative to each other. In this embodiment, the first positioning groove 631 of the adjusting link 63 and the fixed block 641 are always circumferentially positioned but can move axially relative to each other, and when at least a portion of the fixed block 641 extends into the second positioning groove 632, the adjusting link 63 is locked with the bracket 61. When the fixing block 641 exits the second positioning groove 632, the adjusting link 63 and the bracket 61 can rotate relative to each other, and since the fixing block 641 is defined to be circumferentially symmetrical along the center point thereof in the above-mentioned solution, the adjusting link 63 can still be circumferentially positioned with the second positioning groove 632 after rotating a certain angle.

Specifically, as shown in fig. 15, a second insertion groove 634 is formed at a second end of the adjusting link 63, a hinge block 621 is formed at a rear end of the fixing plate 62, and the hinge block 621 is inserted into the second insertion groove 634. The side wall of the hinge block 621 is provided with a first positioning groove 631, the side wall of the second embedded groove 634 is provided with a second positioning groove 632 corresponding to the first positioning groove 631, and the second positioning groove 632 is provided with a shaft hole 633. The fixing block 641 is located in the first positioning groove 631, is circumferentially positioned with the first positioning groove 631, and is axially movable relative thereto, the elastic member 642 is located in the first positioning groove 631 in the fixing block 641, and the button 643 is inserted into the shaft hole 633. When at least a portion of the fixing block 641 extends into the second positioning groove 632, the adjusting link 63 is locked with the fixing plate 62. When an external force is applied to the button 643 to drive the fixing block 641 to axially move out of the second positioning slot 632, the adjusting link 63 and the fixing plate 62 can rotate relative to each other. The engagement structure between the adjustment link 63 and the fixing plate 62 is described in the embodiment, and the embodiment is identical to the engagement structure between the adjustment link 63 and the bracket 61, and the engagement manner of the first positioning groove 631, the second positioning groove 632, and the fixing block 641 may be referred to in the above description.

In the above technical solution, the fixing block 641 is always located circumferentially with the first positioning groove 631, but can move axially to enter or exit the second positioning groove 632, and when exiting the second positioning groove 632, the two components can rotate relative to each other. The second positioning groove 632 can still be abutted and positioned after rotating relative to the fixing block 641, and it is necessary to require that the fixing block 641 is circumferentially symmetrical along the center point thereof. In this case, it is more preferable that the fixing block 641 is a fixed gear, and the first positioning groove 631 and the second positioning groove 632 are both tooth-shaped grooves adapted to an outer profile of the fixed gear. Adopt fixed gear and the mode of tooth-shaped groove complex, its minimum turned angle requirement is lower, and minimum turned angle only need be for the contained angle between two adjacent tooth portions of fixed gear can, so be convenient for realize fixed gear and second constant head tank 632's quick location. The shaft hole 633 is a circular hole, the shaft hole 633 is located at the center of the second positioning groove 632, and the circumferential cross section of the key is circular. The keys are rotated around the axes between the adjusting link 63 and the bracket 61 and between the adjusting link 63 and the fixing plate 62. In this way, the push button not only serves as a biasing member for the fixing block 641, but also serves as a pivot point between the adjusting link 63 and the bracket 61 or between the adjusting link 63 and the fixing plate 62.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims (7)

1. The water resistance rowing machine comprises a rack (1), and a seat (2), a water resistance adjusting mechanism, a rope pulling mechanism and an elastic resetting component which are arranged on the rack (1); the water resistance adjusting mechanism comprises a water tank (31) and a blade assembly arranged in the water tank (31); the method is characterized in that: the paddle component comprises a paddle shaft (32) and a paddle disc (33) which is fixedly connected to the lower end part of the paddle shaft (32), and a plurality of blades (34) are circumferentially arranged on the outer side of a disc body of the paddle disc (33); the upper end of the paddle shaft (32) extends out of the water tank (31), a connecting piece is fixedly connected to the lower end of the paddle shaft (32), the center of the disc body of the paddle disc (33) is integrally connected to the lower end of the paddle shaft (32) in an injection molding mode, and the center of the disc body of the paddle disc (33) is at least covered and molded on the connecting piece and the outer side of the side wall of the lower end of the paddle shaft (32); the pull rope mechanism comprises a left pull rope, a right pull rope (41) and a left handle (42) which are respectively connected to the outer end parts of the left pull rope and the right pull rope (41), the left pull rope and the right pull rope (41) are respectively connected with the paddle shaft (32) through unidirectional winding assemblies (43), and the output ends of the elastic reset assemblies are respectively connected with two groups of unidirectional winding assemblies (43);

the connecting piece is a connecting piece (35), and the center of the connecting piece (35) is connected to the end face of the lower shaft of the paddle shaft (32); the diameter of the body of the connecting piece (35) is larger than that of the lower end of the paddle shaft (32), and the center of the body of the paddle disc (33) is wrapped and molded on the connecting piece (35) and the outer side of the side wall of the paddle shaft (32) above the connecting piece;

a through hole (351) penetrating through the upper end surface and the lower end surface of the connecting sheet (35) is arranged on the sheet body of the connecting sheet; the number of the through holes (351) is multiple, and the multiple through holes are regularly/irregularly arranged on the sheet body of the connecting sheet (35) along the circumferential direction; the edge of the outer side wall of the sheet body of the connecting sheet (35) is provided with a lug outwards in the radial direction and/or is provided with a notch (352) inwards in the radial direction; the bumps and/or the notches (352) are multiple, and the bumps and/or the notches (352) are circumferentially arranged on the edge of the outer side wall of the connecting piece (35); the connecting piece (35) is connected and fixed on the lower shaft end face of the blade shaft (32) through a screw fixing component (36), and the center of the blade disc (33) is wrapped and molded on the outer side of the screw fixing component (36).

2. The water-resistant rowing machine of claim 1, wherein: the rope pulling mechanism further comprises a connecting rod (401), two end parts of the connecting rod (401) are detachably connected with the left handle (42) and the right handle (42), and the left handle (42) and the right handle (42) can be linked through the connecting rod (401); the rack (1) is provided with a clamping seat (11), and the connecting rod (401) is clamped and fixed on the clamping seat (11); handle (42) all including be used for cup jointing holding pipe (421) of connecting rod (401) tip about, be equipped with reference column (423) on the body of rod of connecting rod (401), hold the constant head tank that is equipped with in the inner wall of pipe (421) and corresponds with reference column (423).

3. The water-resistant rowing machine of claim 1, wherein: the left side and the right side of the rack (1) are respectively provided with a swing rod (402), and the left handle (42) and the right handle (42) can be connected with the movable ends of the swing rods (402) in a buckling mode.

4. A water-drag rowing machine in accordance with any one of claims 1 to 3, wherein: the elastic reset assembly comprises two elastic ropes (5), one ends of the two elastic ropes (5) are fixed on the rack (1), and the other ends of the two elastic ropes are respectively wound on the two unidirectional winding assemblies (43).

5. The water-resistant rowing machine of claim 4, wherein: the two groups of unidirectional winding assemblies (43) are sleeved on the paddle shaft (32) along the shaft up and down, the paddle shaft (32) between the two groups of unidirectional winding assemblies (43) is sleeved with a spacer bush (44), and the paddle shafts (32) on the upper side and the lower side of the two groups of unidirectional winding assemblies (43) are axially positioned through retaining rings; and the blade shafts (32) at the upper side and the lower side of the two groups of unidirectional winding assemblies (43) are also positioned on the fastening sleeve (46) through bearings (45).

6. The water-resistant rowing machine of claim 5, wherein: the unidirectional winding assembly (43) comprises an elastic rope iron sleeve (47), a unidirectional wheel (48) and a bearing (45) which are arranged in the elastic rope iron sleeve (47), and a wire rotating wheel (49) which is sleeved outside the elastic rope iron sleeve (47); the elastic rope (5) and the left pulling rope/the right pulling rope are respectively wound on the side surface of the wheel body of the wire rotating wheel (49).

7. The water-resistant rowing machine of claim 1, wherein: the display adjusting device is characterized in that a display adjusting seat (6) is arranged on the rack (1), and the display adjusting seat (6) comprises a bracket (61) connected to the rack (1) and a fixing plate (62) connected to the bracket (61) through an adjusting mechanism; the method is characterized in that: the adjusting mechanism comprises an adjusting link rod (63) and a plurality of groups of elastic locking assemblies (64), and the upper end part of the bracket (61) and the fixing plate (62) are respectively connected with the two end parts of the adjusting link rod (63) through at least one group of elastic locking assemblies (64); based on the elastic locking assembly (64), the adjusting link (63) can rotate or be locked relative to the upper end part of the bracket (61) along the hinged end of the bracket and the fixing plate (62) can rotate or be locked relative to the adjusting link (63) along the hinged end of the bracket and the fixing plate.

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