CN109621287B - Pneumatic comprehensive training machine and linear motion connecting rod mechanism thereof - Google Patents
Pneumatic comprehensive training machine and linear motion connecting rod mechanism thereof Download PDFInfo
- Publication number
- CN109621287B CN109621287B CN201811558954.9A CN201811558954A CN109621287B CN 109621287 B CN109621287 B CN 109621287B CN 201811558954 A CN201811558954 A CN 201811558954A CN 109621287 B CN109621287 B CN 109621287B
- Authority
- CN
- China
- Prior art keywords
- pull
- cross rod
- assemblies
- sliding
- point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 55
- 238000012549 training Methods 0.000 title abstract description 12
- 230000000712 assembly Effects 0.000 claims abstract description 94
- 238000000429 assembly Methods 0.000 claims abstract description 94
- 230000000694 effects Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/008—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters
- A63B21/0085—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters using pneumatic force-resisters
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Tools (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a linear motion link mechanism which comprises a plurality of cross rod assemblies, wherein all the cross rod assemblies are sequentially arranged along a vertical axis and are hinged with each other in pairs, a pull-down part capable of rotating and sliding relative to the cross rod assemblies is arranged at the uppermost cross rod assembly, and a sliding part used for realizing that two lower end points of the lowermost cross rod assembly slide towards a direction away from each other when the pull-down part is pulled down is arranged at the lowermost cross rod assembly. The invention also discloses a pneumatic comprehensive training machine. According to the pneumatic comprehensive training machine and the linear motion connecting rod mechanism thereof, the plurality of groups of cross rod assemblies are hinged, so that the mechanism is enabled to perform linear motion along the vertical axis all the time, the stress point is enabled to be kept on the same straight line all the time, instability caused by deflection of the motion mechanism is reduced, the motion stroke of the linear motion is shared by the plurality of groups of cross rod assemblies, and the motion stroke of the air cylinder is reduced, so that the conduction efficiency is improved.
Description
Technical Field
The invention relates to the field of pneumatic body building, in particular to a pneumatic comprehensive training machine and a linear motion connecting rod mechanism thereof.
Background
Under the background that the living standard is gradually improved and the public is continuously improving the health consciousness, the body-building equipment is accepted by the public as a full-time and efficient exercise means. At the same time, the incorporation and deployment of more other fields in the fitness equipment field provides consumers with products that have better performance and user experience.
In the pneumatic comprehensive training machine in the pneumatic body-building field, a user develops and exercises body functions in a mode of determining the acting direction and repeatedly acting, and for the pneumatic comprehensive machine, the movement mechanism in the pneumatic comprehensive training machine often determines the advantages and disadvantages of the use effect of the pneumatic comprehensive machine. In the prior art, for a motion mechanism in a pneumatic comprehensive machine, an eccentric wheel, an air cylinder and a rod member structure are generally arranged, a user does work on the motion mechanism, the motion mechanism drives the eccentric wheel to move through the rod member structure so as to compress the air cylinder, and the eccentric wheel and the rod member structure decompose and transmit resistance generated by the air cylinder to a work end of the user so as to realize resistance training of the user on the pneumatic comprehensive machine. However, the eccentric wheel movement mechanism not only causes the stress direction to change all the time so that the mechanism swings and unstable phenomenon occurs, but also causes the travel of the air cylinder to be larger so that the conduction efficiency is reduced, so how to provide a linear movement link mechanism which reduces the swing of the mechanism and has unstable and shorter travel so as to improve the conduction efficiency is a problem to be solved by the person skilled in the art.
Disclosure of Invention
The invention aims to provide a pneumatic comprehensive training machine and a linear motion connecting rod mechanism thereof, wherein the linear motion connecting rod mechanism is connected through the hinges of a plurality of groups of cross rod assemblies, so that the mechanism always makes linear motion along a vertical axis, a stress point always keeps on a straight line, instability caused by deflection of a motion mechanism is reduced, the motion stroke of the linear motion is shared by the cross rod assemblies, and the motion stroke of an air cylinder is reduced, so that the conduction efficiency is improved.
In order to achieve the above purpose, the invention provides a linear motion link mechanism, which comprises a cross rod assembly formed by hinging two straight rods with the same length and extending in a vertical plane with each other at the middle point, wherein the upper side of the cross rod assembly is provided with a first upper end point and a second upper end point which are positioned on the same horizontal line, and the lower side of the cross rod assembly is provided with a first lower end point and a second lower end point which are positioned on the same horizontal line; the two groups of cross rod assemblies are sequentially arranged along a vertical axis, every two adjacent first lower end points of the cross rod assemblies are sequentially hinged with the first upper end points, every two adjacent second lower end points of the cross rod assemblies are sequentially hinged with the second upper end points, and all midpoints of the cross rod assemblies are positioned on the vertical axis; the first upper end point and the second upper end point of the cross rod assembly positioned at the uppermost end of the vertical axis are in sliding connection with a pull-down part which can be pulled downwards relative to the cross rod assembly, and sliding parts are arranged at the first lower end point and the second lower end point of the cross rod assembly positioned at the lowermost end of the vertical axis so as to enable the sliding parts to drive the first lower end point and the second lower end point of the cross rod assembly positioned at the lowermost end to slide in a direction away from each other on a horizontal line when the pull-down part is pulled downwards; the automatic reversing device comprises a cross rod assembly, a pull-down part, a cross rod assembly, a cylinder, a reversing reset motion and a reversing reset device, wherein the cross rod assembly is arranged between the two cross rod assemblies, the cross rod assembly moves downwards when the pull-down part does work downwards along a vertical axis, the cylinder generates resistance to the downward motion of the cross rod assembly, and the cylinder drives the cross rod assembly to do reverse reset motion when the pull-down part stops pulling downwards.
Preferably, the first upper end point of the uppermost cross rod assembly of the pull-down part is provided with a first driving twisted point, the second upper end point of the uppermost cross rod assembly of the pull-down part is provided with a second driving twisted point, and the pull-down part is hinged with the cross rod assembly through the first driving twisted point and the second driving twisted point.
Preferably, the pull-down part comprises a first pull-down connecting rod and a second pull-down connecting rod which are the same in length, the first pull-down connecting rod is rotationally connected with the cross rod assembly through the first driving twisted point, the second pull-down connecting rod is rotationally connected with the cross rod assembly through the second driving twisted point, the first pull-down connecting rod is rotationally connected with the second pull-down connecting rod through a hinge and is located on the same vertical axis with the midpoint of all the cross rod assemblies, when downward acting force is applied to the pull-down twisted points along the vertical axis, the cross rod assembly moves downwards along the vertical axis and drives the air cylinder to shrink, and when the acting force applied to the pull-down twisted points disappears, the air cylinder drives the cross rod assembly to perform reverse reset motion.
Preferably, the cross rod assembly further comprises a pull-down rod which is arranged at the pull-down twisting point and extends downwards along the vertical axis, the lower end of the pull-down rod is hinged with a rotating wheel used for hanging a rope, and the downward pulling force of the rope is used for achieving the effect of the pull-down part on the pull-down of the cross rod assembly.
Preferably, the cross rod assembly comprises a first group, a second group and a third group of cross rod assemblies which are sequentially arranged from top to bottom along a vertical axis, a cylinder seat which is fixed relative to the cross rod assemblies of the third group is arranged at the bottom of the cross rod assemblies of the third group, the bottom of the cylinder is fixed on the cylinder seat, and the head of the cylinder is fixed on the cross rod assemblies of the second group.
Preferably, the sliding part comprises a first sliding wheel and a second sliding wheel, a first sliding twisting point and a second sliding twisting point are respectively arranged at a first lower end point and a second lower end point of the cross rod assembly at the lowest end of the vertical axis, and the first sliding wheel and the second sliding wheel are respectively hinged with the first sliding twisting point and the second sliding twisting point so as to realize that the first lower end point and the second lower end point can slide towards directions far away from each other when the cross rod assembly moves downwards along the vertical axis.
Preferably, the sliding part further comprises a sliding rail horizontally arranged below the first sliding wheel and the second sliding wheel, and the sliding rail is provided with a sliding groove for the first sliding wheel and the second sliding wheel to slide along the horizontal extension section of the sliding rail.
Preferably, the cross bar assembly further comprises a supporting part connected with the cross bar assembly of the third group, the supporting part is rotationally connected with the sliding rail, and the supporting part is rotationally connected with the cross bar assembly of the third group so as to support the cross bar assembly of the third group on the sliding rail when the cross bar assembly of the third group rotationally slides relative to the sliding rail.
Preferably, the sliding rail is sleeved with a sliding sleeve capable of moving along a horizontal axis relative to the sliding rail, the sliding sleeve is hinged with a supporting rod capable of rotating in a vertical plane, the supporting rod is hinged with the third group of cross rod assemblies, the horizontal sliding of the sliding sleeve relative to the sliding rail is used for changing the horizontal position of the linear motion connecting rod mechanism, and the supporting rod is used for supporting the third group of cross rod assemblies when the cross rod assemblies slide and rotate relative to the sliding rail.
The invention also provides a pneumatic comprehensive training machine, which comprises the linear motion connecting rod mechanism.
Compared with the background art, the linear motion link mechanism provided by the invention comprises the cross bar assemblies formed by hinging two straight bars which have the same length and extend in a vertical plane with each other at the middle point, at least two groups of cross bar assemblies are arranged along the vertical axis at one time, the middle points of all cross bar assemblies are positioned on the same vertical axis, the two cross bar assemblies which are adjacent up and down are hinged in pairs through four end points which are adjacent up and down respectively to realize the two-to-two connection of all cross bar assemblies, the two end points of the upper side of the cross bar assembly at the uppermost end are provided with a pull-down part which is rotationally connected with the cross bar assembly, the two end points of the lower side of the cross bar assembly at the lowermost end are provided with sliding parts, an air cylinder is arranged between the two cross bar assemblies, the linear motion link mechanism comprises a plurality of groups of cross bar assemblies which are hinged, because the middle points of all cross bar assemblies are positioned on the same vertical axis, when force is applied along the vertical axis in the direction of approaching the cross rod assemblies, the closed graph formed by the cross rod assemblies is flattened by a square, the adjacent middle points are mutually approaching, namely, the two adjacent cross rod assemblies are mutually approaching, at the moment, the straight rod in the cross rod assemblies has a downward and sideways movement trend, the bottom end of the cross rod assembly at the bottommost end releases the sideways movement trend through the sliding part, so that the linear movement connecting rod mechanism can be normally pulled down under the action of the pull-down part, the air cylinder arranged between the two cross rod assemblies is influenced by the action effect of the movement of the middle points of the two adjacent cross rod assemblies, namely, the two adjacent cross rod assemblies are mutually approaching, namely, the air cylinder is influenced by the movement of the two adjacent cross rod assemblies relatively approaching, at the moment, the product of the compression amount of the cylinder stroke and the cosine value of the angle of the motion axis of the cylinder relative to the vertical axis is the distance that two adjacent cross rod assemblies relatively approach to the motion, so that the mechanism always makes linear motion along the vertical axis and enables the stress point to be always kept on the same straight line, the instability caused by deflection of the motion mechanism is reduced, the motion stroke of the linear motion is shared by a plurality of groups of cross rod assemblies, and the motion stroke of the cylinder is reduced, so that the conduction efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a simplified schematic diagram of a prior art eccentric motion mechanism;
FIG. 2 is a simplified schematic diagram of a linear motion linkage according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a set of crossbar assemblies according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a linear motion linkage mechanism according to an embodiment of the present invention.
Wherein:
the device comprises a 1-linear motion connecting rod mechanism, a 2-eccentric wheel motion mechanism, a 111-first driving twisting point, a 112-second driving twisting point, a 113-lower twisting point, a 121-first sliding twisting point, a 122-second sliding twisting point, a 131-first lower connecting rod, a 132-second lower connecting rod, a 133-lower connecting rod, a 141-first left connecting rod, a 142-second right connecting rod, a 143-second left connecting rod, a 144-second right connecting rod, a 145-third left connecting rod, a 146-third right connecting rod, a 15-cylinder, a 16-sliding rail, a 17-supporting rod, a 2-cross rod assembly, a 211-first upper end point, a 212-second upper end point, a 221-first lower end point, a 222-second lower end point and a 23-middle point.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The present invention will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present invention.
Referring to fig. 1 to 4, fig. 1 is a simplified schematic diagram of an eccentric wheel movement mechanism in the prior art, fig. 2 is a simplified schematic diagram of a linear movement linkage mechanism provided by an embodiment of the present invention, fig. 3 is a schematic diagram of a group of cross bar assemblies provided by an embodiment of the present invention, and fig. 4 is a schematic diagram of a linear movement linkage mechanism provided by an embodiment of the present invention.
In the simple schematic diagram of the eccentric wheel movement mechanism in the prior art in fig. 1, the eccentric wheel movement mechanism 2 drives the cylinder to compress by acting on the rod member mechanism connected with the eccentric wheel, the cylinder outputs resistance which is opposite to the compression direction of the cylinder to the eccentric wheel, and the resistance is decomposed and transmitted to the acting position of the rod member mechanism through the eccentric wheel and the rod member mechanism, so that the stress direction of the eccentric wheel is always changed when the eccentric wheel drives the cylinder to compress by rotation in the movement process, and the mechanism generates the adverse effect of deflection. In the linear motion link mechanism 1 provided in the present embodiment, the mechanism always makes linear motion along the vertical axis, and deflection of the mechanism is not generated due to the constant change of the direction of the force.
In a first specific embodiment, the linear motion linkage mechanism 1 provided by the present invention includes two crossbar assemblies 2 formed by hinging two straight bars with the same length at the midpoint 23, at least two crossbar assemblies 2 are disposed along a vertical axis so as to enable all the midpoints 23 to be located on the same vertical axis, and four adjacent end points between two adjacent crossbar assemblies 2 are hinged two by two so as to enable connection of two adjacent crossbar assemblies 2, for convenience of more specific and clear explanation, it is provided that for any one of the crossbar assemblies 2, the end point on the upper left side along the vertical axis is a first upper end point 211, the end point on the right side is a second upper end point 212, the end point on the left side along the lower side of the vertical axis is a first lower end point 221, and the end point on the right side is a second lower end point 222, so that for two adjacent crossbar assemblies 2, the first lower end point 221 of the upper crossbar assembly 2 is hinged with the first upper end point 211 of the lower crossbar assembly 2, and the second lower end point 222 of the upper crossbar assembly 2 is hinged with the second end point 212 of the lower crossbar assembly 2. In addition, for a plurality of two adjacent two crossbar assemblies 2, the first upper end 211 and the second upper end 212 of the crossbar assembly 2 at the uppermost end along the vertical axis are rotatably connected with the pull-down part capable of pulling down relative to the crossbar assembly 2, and the first lower end 221 and the second lower end 222 of the crossbar assembly 2 at the lowermost end are provided with sliding parts so that the sliding parts drive the first lower end 221 and the second lower end 222 of the crossbar assembly 2 at the lowermost end to slide in the direction away from each other on the horizontal line when the pull-down part pulls down, and the two crossbar assemblies further comprise a cylinder 15 arranged between the two crossbar assemblies 2. It should be noted that, the fact that the air cylinder 15 is disposed between two crossbar assemblies 2 does not mean that the air cylinder 15 is disposed between two adjacent crossbar assemblies 2 alone, but means that the air cylinder 15 may be disposed between any two crossbar assemblies 2, because the crossbar assemblies 2 are connected by a hinge so that the crossbar assemblies 2 can approach or separate from each other, but the single crossbar assembly 2 cannot achieve such movement, so that in order to enable the air cylinder 15 to approach or separate from each other between any two of the crossbar assemblies 2 to drive the air cylinder 15 to generate the air cylinder stroke and perform work, it is within the scope of the present embodiment to dispose the air cylinder 15 between any two crossbar assemblies 2, so that there is a better movement effect between the adjacent crossbar assemblies 2 in which the air cylinder 15 is disposed at the bottommost end or a disposition manner obtained due to other considerations.
In this embodiment, two straight bars in any of the crossbar assemblies 2 have the same length, and the midpoints 23 of all of the crossbar assemblies 2 are located on the same vertical axis, so that all of the crossbar assemblies 2 are mirror symmetrical about the vertical axis on which all of the midpoints 23 are located. In this embodiment, it is not strictly limited that all the straight bars of all the crossbar assemblies 2 have the same length, and not only all the crossbar assemblies 2 formed of straight bars having the same length are mirror-symmetrical about the vertical axis, but also the above-described mechanism formed of all the crossbar assemblies 2 can be regarded as the linear motion linkage mechanism 1 formed of several rhombuses having the same size and shape, the pull-down portion applies a pull-down force to the uppermost crossbar assembly 2, all the rhombuses move downward to the same extent and compress in the vertical direction and extend in the horizontal direction, no matter what length the crossbar assembly 2 adopts shall fall within the scope of the present embodiment.
For better technical effect, the first upper end 211 of the uppermost cross bar assembly 2 of the pull-down part is provided with a first driving twisted point 111, the second upper end 212 of the pull-down part is provided with a second driving twisted point 112, and the pull-down part is hinged with the first driving twisted point 111, the second driving twisted point 112 and the cross bar assembly 2 in a hinged connection mode. Specifically, the pull-down part includes two first pull-down connecting rods 131 and second pull-down connecting rods 132 with the same length, the first pull-down connecting rods 131 are rotationally connected with the cross rod assembly 2 through the first driving twisted points 111, the second pull-down connecting rods 132 are rotationally connected with the cross rod assembly 2 through the second driving twisted points 112, the first pull-down connecting rods 131 and the second pull-down connecting rods 132 are rotationally connected with the pull-down twisted points 113 through hinges, the pull-down twisted points 113 and all middle points 23 of all the cross rod assemblies 2 are located on the same vertical axis, when downward force is applied to the pull-down twisted points 113 along the vertical axis, the cross rod assembly 2 moves downwards along the vertical axis and drives the air cylinders 15 to shrink, and when the force applied to the pull-down twisted points 113 disappears, the air cylinders 15 drive the cross rod assembly 2 to perform reverse reset motion.
It should be noted that, when all the adjacent crossbar assemblies 2 are hinged to implement simultaneous movement of all the crossbar assemblies 2 along the vertical axis, the first upper end 211 and the second upper end 212 of the uppermost crossbar assembly 2 have a movement tendency toward each other and away from each other along the downward movement of the crossbar assemblies 2, so that the first driving hinge point 111 of the first upper end 211 is hinged to the first drop link 131, the second driving hinge point 112 of the second upper end 212 is hinged to the second drop link 132, and when a downward pulling force is applied at the drop-down hinge point 113, the uppermost crossbar assembly 2 connected to the drop-down portion moves downward, and at this time, the first upper end 211 and the second upper end 212 of the uppermost crossbar assembly 2 have a movement tendency toward each other along the horizontal axis, and the drop-down portion slides in a rotation manner relative to the second driving hinge point 112 through the first driving hinge point 111 hinged to the uppermost crossbar assembly 2 so as to satisfy the movement tendency toward both sides and downward, so as to implement a downward pulling force on the drop-down crossbar assembly 2 through the drop-down portion. The cylinder 15 arranged between any two cross rod assemblies 2 is compressed and outputs resistance, and after the pulling force applied to the pulling-down twisting point 113 disappears, the cylinder 15 drives the two cross rod assemblies 2 connected with the cylinder to move along the vertical axis in the direction away from each other, so that other cross rod assemblies 2 are driven to simultaneously perform reverse reset motion in the opposite motion direction to the pulling-down motion.
For better technical effect, a pull-down rod 133 extending downwards along a vertical axis is arranged at the pull-down twisting point 113, the pull-down rod 133 has the same extending direction as the pull-down force acting on the pull-down rod 133, a rotating wheel for hanging a rope is hinged at the lower end of the pull-down rod 133, and the pull-down action of the pull-down part on the cross rod assembly 2 is realized through the downward pull-down force applied on the rope. It should be noted that, in this embodiment, the arrangement mode of setting the rotating wheel capable of rotating around the rotation axis at the lower end of the pull-down rod 133 and winding the rope on the rotating wheel and transmitting the pull-down force by the rope is merely an arrangement mode of this embodiment, and as for what rotating wheel or rope should be adopted, it should be within the scope of the present embodiment that a technical scheme which can achieve the same beneficial effect by simple replacement according to the above description by a person skilled in the art should also be within the scope of the present embodiment.
In this embodiment, the sliding portion includes a first sliding wheel and a second sliding wheel, a first lower end point 221 and a second lower end point 222 of the crossbar assembly 2 at the lowest end of the vertical axis are respectively provided with a first sliding hinge point 121 for installing the first sliding wheel and a second sliding hinge point 122 for installing the second sliding wheel, a sliding rail 16 is provided below the first sliding wheel and the second sliding wheel, the sliding rail 16 is provided with a sliding groove for the first sliding wheel and the second sliding wheel to slide along the horizontal extension section of the sliding rail 16, and when the lower pulling portion drives the crossbar assembly 2 to move downwards along the vertical axis, the first lower end point 221 and the second lower end point 222 respectively connected with the first sliding wheel and the second sliding wheel are driven to slide towards a direction away from each other, so as to meet the requirement that the first lower end point 221 and the second lower end point 222 have a movement trend towards a direction away from each other when the crossbar assembly 2 moves downwards.
In another specific embodiment, the crossbar assembly 2 comprises a first group, a second group and a third group disposed one at a time from top to bottom along a vertical axis, a cylinder block fixed with respect to the crossbar assembly 2 of the group is provided at the bottom of the crossbar assembly 2 of the third group, the bottom of the cylinder 15 is fixed on the cylinder block, and the head of the cylinder 15 is fixed on the straight rod of the crossbar assembly 2 of the second group. Specifically, the first set of crossbar assemblies 2 includes a first left link 141 extending from top left to bottom right and a first right link 142 extending from top right to bottom left, the same second set of crossbar assemblies 2 includes a second left link 143 extending from top left to bottom right and a second right link 144 extending from top right to bottom left, the same third set of crossbar assemblies 2 includes a third left link 145 extending from top left to bottom right and a third right link 146 extending from top right to bottom left, the first left link 141 and the first drop link 131 are hinged to the first drive hinge point 111, and the first right link 142 and the second drop link 132 are hinged to the second drive hinge point 112. The first right connecting rod 142 and the second left connecting rod 143 are hinged to the left side of the vertical axis, and the first left connecting rod 141 and the second right connecting rod 144 are hinged to the right side of the vertical axis in radial symmetry relative to the vertical axis; similarly, the second right link 144 and the third left link 145 are hinged to the left side of the vertical axis, and the second left link 143 and the third right link 146 are hinged to the right side of the vertical axis in radial symmetry with respect to the vertical axis. The bottom of third right connecting rod 146 is equipped with the first slip hank point 121 that supplies the first movable pulley to install, the bottom of third left connecting rod 145 is equipped with the second slip hank point 122 that supplies the second movable pulley to install, be equipped with the cylinder block fixed relative third left connecting rod 145 in the bottom of third left connecting rod 145, the cylinder block articulates with the bottom of cylinder 15, the top of cylinder 15 articulates in second right connecting rod 144, be equipped with the supporting part between crossing pole subassembly 2 of third group and slide rail 16, the supporting part articulates with slide rail 16 and third right connecting rod 146 respectively, in order to realize that slide rail 16 provides support to crossing pole subassembly 2 that slides on the slide rail 16 through the supporting part that links to each other with third right connecting rod 146.
The lower pulling force is applied to the lower pulling part, the downward force acts on the lower pulling hinge point 113, the first lower pulling link 131 and the second lower pulling link 132 transmit the downward force to the first driving hinge point 111 of the first left link 141 and the second driving hinge point 112 of the first right link 142, the first group of the crossing bar assembly 2 receives the downward force of the resultant force along the vertical axis and over-center, the first left link 141 and the first right link 142 move toward each other, and the first group of the crossing bar assemblies 2 have a tendency to integrally move downward, the second group and the third group of the crossing bar assemblies 2 sequentially receive the downward force and simultaneously move downward along the vertical axis by the downward force of the lower pulling part, at this time any two connected straight bars have a tendency to integrally move downward toward each other, the cylinder 15 disposed between the third left link 145 and the second right link 144 is thus contracted and moves along with the cross link assembly 2 in a direction approaching the slide rail 16, and when the first and second pulleys move on the slide rail 16 in a direction away from each other, the support portion disposed between the third right link 146 and the slide rail 16 for supporting the cross link assembly 2 is also rotated in a direction approaching the slide rail 16, and when the lower pulling force is lost and the cylinder 15 is in a compressed state, the cylinder 15 has a movement tendency to be outwardly extended to restore, and such an extending force of the cylinder 15 acts on the second right link 144 and the third left link 145 hinged thereto, so that the second right link 144 and the third left link 145 move in a direction away from each other, which is an upward lifting force of the cylinder 15 acting on the cross link assembly 2 of the third group, the first and second pulleys slide in directions approaching each other, and the support portion provided between the third right link 146 and the slide rail 16 for supporting the crossbar assembly 2 also rotates in a direction away from the slide rail 16, and the crossbar assembly 2 has a tendency to stretch in a vertical direction and shrink in a horizontal direction, which is expressed as an upward movement of the crossbar assembly 2 along a vertical axis, i.e., the cylinder 15 drives the crossbar assembly 2 to perform a reverse reset movement.
In another embodiment, the sliding rail 16 is sleeved with a sliding sleeve which can move along a horizontal axis relative to the sliding rail 16, the sliding sleeve is hinged with a supporting rod 17 which can rotate in a vertical plane, the supporting rod 17 is hinged with the cross rod assembly 2 of the third group, the horizontal position of the linear motion link mechanism 1 is changed by the horizontal sliding of the sliding sleeve relative to the sliding rail 16, and the supporting rod 17 is used for supporting the cross rod assembly 2 of the third group when the cross rod assembly 2 of the third group slides and rotates relative to the sliding rail 16. The sliding sleeve is used for changing the position of the linear motion link mechanism 1 on the horizontal extension section of the sliding rail 16, so that the linear motion link mechanism can be conveniently adapted to the downward pulling force acting on different vertical axis positions, and after the position of the linear motion link mechanism 1 on the horizontal extension section of the sliding rail 16 is adjusted, the sliding sleeve is locked so as to realize the balance between the friction force between the sliding sleeve and the sliding rail 16 and the transverse component acting on the sliding rail 16 when the cylinder 15 is compressed and stretched.
The invention also provides a pneumatic comprehensive training machine, which comprises the linear motion link mechanism 1, and has the beneficial effects of the linear motion link mechanism 1, and the detailed description is omitted.
It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The pneumatic comprehensive training machine and the linear motion link mechanism provided by the invention are described in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (10)
1. The linear motion link mechanism is characterized by comprising a cross rod assembly (2) formed by hinging two straight rods which are identical in length and extend in a vertical plane with each other at a midpoint (23), wherein a first upper end point (211) and a second upper end point (212) which are positioned on the same horizontal line are arranged on the upper side of the cross rod assembly (2), and a first lower end point (221) and a second lower end point (222) which are positioned on the same horizontal line are arranged on the lower side of the cross rod assembly (2); the two groups of cross rod assemblies (2) are sequentially arranged along a vertical axis, the first lower end points (221) adjacent to each other in pairs of the cross rod assemblies (2) are sequentially hinged with the first upper end points (211), the second lower end points (222) adjacent to the cross rod assemblies (2) are sequentially hinged with the second upper end points (212), and the middle points (23) of all the cross rod assemblies (2) are all positioned on the vertical axis; the first upper end point (211) and the second upper end point (212) of the cross rod assembly (2) which are positioned at the uppermost end of the vertical axis of all the cross rod assemblies (2) are rotationally connected with a pull-down part which can be pulled downwards relative to the cross rod assembly (2), and sliding parts are arranged at the first lower end point (221) and the second lower end point (222) of the cross rod assembly (2) which are positioned at the lowermost end of the vertical axis so as to enable the sliding parts to drive the first lower end point (221) and the second lower end point (222) of the cross rod assembly (2) which are positioned at the lowermost end to slide in directions away from each other on horizontal lines when the pull-down part is pulled downwards; the automatic reversing device is characterized by further comprising an air cylinder (15) arranged between the two cross rod assemblies (2), when the pull-down part does work downwards along the vertical axis, the cross rod assemblies (2) move downwards, the air cylinder (15) generates resistance to the downward movement of the cross rod assemblies (2), and when the pull-down part stops pulling down, the air cylinder (15) drives the cross rod assemblies (2) to do reverse reset movement.
2. The linear motion linkage according to claim 1, characterized in that the pull-down part is provided with a first drive hinge point (111) at the first upper end point (211) of the uppermost crossbar assembly (2), the pull-down part is provided with a second drive hinge point (112) at the second upper end point (212) of the uppermost crossbar assembly (2), and the pull-down part is hinged to the crossbar assembly (2) by means of the first drive hinge point (111) and the second drive hinge point (112).
3. The linear motion linkage mechanism according to claim 2, wherein the pull-down part comprises a first pull-down link (131) and a second pull-down link (132) which are the same in length, the first pull-down link (131) is rotatably connected with the cross bar assembly (2) through the first driving twisted point (111), the second pull-down link (132) is rotatably connected with the cross bar assembly (2) through the second driving twisted point (112), the first pull-down link (131) and the second pull-down link (132) are rotatably connected with the pull-down twisted point (113) through a hinge, the pull-down twisted point (113) and the middle point (23) of all the cross bar assembly (2) are located on the same vertical axis, when a downward force is applied to the pull-down twisted point (113), the cross bar assembly (2) moves down along the vertical axis and drives the cylinder (15) to shrink, and when a force applied to the pull-down twisted point (113) disappears, the cross bar assembly (2) is driven to reversely move.
4. A rectilinear motion linkage according to claim 3, further comprising a pull-down rod (133) provided at the pull-down hinge point (113) and extending downward along a vertical axis, the lower end of the pull-down rod (133) being hinged with a runner for hooking a rope, the downward pulling force of the rope being used to effect the pulling down of the cross bar assembly (2) by the pull-down portion.
5. The linear motion linkage according to any one of claims 1 to 4, wherein the crossbar assembly (2) comprises a first group, a second group and a third group of the crossbar assemblies (2) arranged in sequence from top to bottom along a vertical axis, the bottom of the third group of the crossbar assemblies (2) being provided with a cylinder block fixed relative to the third group of the crossbar assemblies (2), the bottom of the cylinder (15) being fixed on the cylinder block, the head of the cylinder (15) being fixed to the second group of the crossbar assemblies (2).
6. The linear motion linkage according to claim 5, characterized in that the sliding portion comprises a first sliding wheel and a second sliding wheel, the first lower end point (221) and the second lower end point (222) of the cross bar assembly (2) at the lowest end of the vertical axis are respectively provided with a first sliding hinge point (121) and a second sliding hinge point (122), and the first sliding wheel and the second sliding wheel are respectively hinged with the first sliding hinge point (121) and the second sliding hinge point (122), so that the first lower end point (221) and the second lower end point (222) can slide towards directions far away from each other when the cross bar assembly (2) moves downwards along the vertical axis.
7. The linear motion linkage of claim 6, wherein the slide further comprises a slide rail (16) horizontally disposed below the first and second pulleys, the slide rail (16) having a chute for sliding the first and second pulleys along a horizontal extension of the slide rail (16).
8. The linear motion linkage of claim 7 further comprising a support portion coupled to the third set of crossbar assemblies (2), the support portion being rotatably coupled to the slide rail (16), the support portion being further rotatably coupled to the third set of crossbar assemblies (2) to support the third set of crossbar assemblies (2) on the slide rail (16) as the third set of crossbar assemblies (2) rotationally slide relative to the slide rail (16).
9. The linear motion linkage according to claim 7, wherein the sliding rail (16) is sleeved with a sliding sleeve capable of moving along a horizontal axis relative to the sliding rail (16), the sliding sleeve is hinged with a supporting rod (17) capable of rotating in a vertical plane, the supporting rod (17) is hinged with the third group of cross rod assemblies (2), the sliding sleeve is horizontally slid relative to the sliding rail (16) to change the horizontal position of the linear motion linkage (1), and the supporting rod (17) is used for supporting the third group of cross rod assemblies (2) when the sliding rail (16) slides and rotates relative to the sliding rail (16).
10. A pneumatic complex exercise machine comprising a rectilinear motion linkage (1) according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811558954.9A CN109621287B (en) | 2018-12-19 | 2018-12-19 | Pneumatic comprehensive training machine and linear motion connecting rod mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811558954.9A CN109621287B (en) | 2018-12-19 | 2018-12-19 | Pneumatic comprehensive training machine and linear motion connecting rod mechanism thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109621287A CN109621287A (en) | 2019-04-16 |
| CN109621287B true CN109621287B (en) | 2023-12-15 |
Family
ID=66075657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811558954.9A Active CN109621287B (en) | 2018-12-19 | 2018-12-19 | Pneumatic comprehensive training machine and linear motion connecting rod mechanism thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109621287B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2512670Y (en) * | 2001-09-29 | 2002-09-25 | 王德法 | Car position protector |
| JP2003223801A (en) * | 2002-01-30 | 2003-08-08 | Nippon Lift Kk | Mars light lifter |
| WO2007122397A1 (en) * | 2006-04-25 | 2007-11-01 | Patrick John Trainor | Exercise apparatus |
| CN101224331A (en) * | 2007-01-19 | 2008-07-23 | 国际文具制造厂有限公司 | Telescopic limb sports equipments |
| CN203329268U (en) * | 2013-05-13 | 2013-12-11 | 力山工业股份有限公司 | Resistance adjusting mechanism of fitness equipment |
| CN105270430A (en) * | 2015-10-12 | 2016-01-27 | 南车青岛四方机车车辆股份有限公司 | Energy-absorbing anti-climbing device |
| CN205113060U (en) * | 2015-11-13 | 2016-03-30 | 温岭市富康汽车零部件有限公司 | Locomotive shock attenuation seat |
| DE102015117820A1 (en) * | 2015-10-20 | 2017-04-20 | Grammer Ag | Device for springing and / or damping an upper part relative to a lower part |
| CN207449689U (en) * | 2017-09-19 | 2018-06-05 | 安路普（北京）汽车技术有限公司 | Automatic damping adjusting mechanism and gas suspension seat |
| CN207580509U (en) * | 2017-12-06 | 2018-07-06 | 广州力环工程科技有限公司 | A kind of Acquisition Instrument storage device |
| CN207809572U (en) * | 2017-12-28 | 2018-09-04 | 北京京东尚科信息技术有限公司 | A kind of damping device, driving device and automatic guide vehicle |
| CN209333102U (en) * | 2018-12-19 | 2019-09-03 | 青岛英派斯健康科技股份有限公司 | A kind of pneumatic combined training machine and its straight-line motion connecting rod mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7491159B2 (en) * | 2004-07-30 | 2009-02-17 | Patterson Gary W | Reversible resistance assembly for hydraulic exercise apparatus |
-
2018
- 2018-12-19 CN CN201811558954.9A patent/CN109621287B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2512670Y (en) * | 2001-09-29 | 2002-09-25 | 王德法 | Car position protector |
| JP2003223801A (en) * | 2002-01-30 | 2003-08-08 | Nippon Lift Kk | Mars light lifter |
| WO2007122397A1 (en) * | 2006-04-25 | 2007-11-01 | Patrick John Trainor | Exercise apparatus |
| CN101224331A (en) * | 2007-01-19 | 2008-07-23 | 国际文具制造厂有限公司 | Telescopic limb sports equipments |
| CN203329268U (en) * | 2013-05-13 | 2013-12-11 | 力山工业股份有限公司 | Resistance adjusting mechanism of fitness equipment |
| CN105270430A (en) * | 2015-10-12 | 2016-01-27 | 南车青岛四方机车车辆股份有限公司 | Energy-absorbing anti-climbing device |
| DE102015117820A1 (en) * | 2015-10-20 | 2017-04-20 | Grammer Ag | Device for springing and / or damping an upper part relative to a lower part |
| CN205113060U (en) * | 2015-11-13 | 2016-03-30 | 温岭市富康汽车零部件有限公司 | Locomotive shock attenuation seat |
| CN207449689U (en) * | 2017-09-19 | 2018-06-05 | 安路普（北京）汽车技术有限公司 | Automatic damping adjusting mechanism and gas suspension seat |
| CN207580509U (en) * | 2017-12-06 | 2018-07-06 | 广州力环工程科技有限公司 | A kind of Acquisition Instrument storage device |
| CN207809572U (en) * | 2017-12-28 | 2018-09-04 | 北京京东尚科信息技术有限公司 | A kind of damping device, driving device and automatic guide vehicle |
| CN209333102U (en) * | 2018-12-19 | 2019-09-03 | 青岛英派斯健康科技股份有限公司 | A kind of pneumatic combined training machine and its straight-line motion connecting rod mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109621287A (en) | 2019-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201719760U (en) | Swing arm multifunctional trainer | |
| CN109621287B (en) | Pneumatic comprehensive training machine and linear motion connecting rod mechanism thereof | |
| CN107961485B (en) | Parallel bar arm strength body-building device with good adaptability | |
| CN207270645U (en) | Multifunction phisical-strength exercising device | |
| CN209333102U (en) | A kind of pneumatic combined training machine and its straight-line motion connecting rod mechanism | |
| CN213965103U (en) | Wushu cutter swing frame | |
| CN114949734B (en) | Counterweight device of body-building apparatus | |
| CN110917594A (en) | Auxiliary device and method for training rotation of cheering gym | |
| CN205216091U (en) | Novel simple and convenient strength of arm | |
| WO2022179056A1 (en) | Stepless counterweight structure and body-building device having same | |
| CN211097348U (en) | Multi-functional sports teaching aid | |
| CN109453494B (en) | Outdoor body-building stool | |
| CN113018762A (en) | Pull rod structure and body-building device with same | |
| CN207898914U (en) | A kind of volleyball smash teaching hanging ball device | |
| CN117213979B (en) | Wire and cable tensile strength detection device | |
| CN219272070U (en) | Cross brake self-locking structure | |
| CN219071950U (en) | Transmission structure for single-motor resistance force training device | |
| CN206621744U (en) | Body-building apparatus is waved in a kind of skipping over bamboo pole | |
| CN213857145U (en) | Machining drilling equipment | |
| CN105215250B (en) | Large-tonnage horizontal force multi-way die forging press | |
| CN219355212U (en) | Stretcher | |
| CN109513180B (en) | Multifunctional body-building equipment | |
| CN216676868U (en) | Sports equipment for arm strength exercise | |
| CN209188003U (en) | A kind of broad-adjustable portal frame fitness equipment | |
| CN221805868U (en) | Electric power engineering grounding rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |