CN212235860U - Bench press training apparatus - Google Patents

Abstract

The utility model belongs to the technical field of training apparatus and specifically relates to a bench press training apparatus is related to, the on-line screen storage device comprises a base, the vertical first support column that is provided with on the base, the vertical second support column that is provided with of opposite side at the base, be provided with the bracket between first support column and second support column, the bracket is articulated with first support column, be equipped with the rotation stop gear who is used for restricting bracket turned angle between bracket and first support column, the bracket other end activity is set up on the second support column and is provided with the mechanism of lifting that is used for lifting the bracket, set up the backup pad of holding with supplying the user to lie in the below of the mechanism of lifting. This application has the effect that is applicable to the higher training of intensity.

Description

Bench press training apparatus

Technical Field

The application relates to the field of training apparatus, in particular to a bench press training apparatus.

Background

At present, with the improvement of living standard, the requirements of people on physical fitness are continuously improved. Among them, the physical training through the training apparatus has become one of the main approaches, and the training apparatus is a sports apparatus used for the people who have the training requirement to achieve the effects of assisting training and building up the body.

The common training apparatus such as a walker and a butterfly chest expander in daily life comprises a fixed end and a movable end connected with the fixed end, wherein the movable end is driven by a user, and the movable end can be hinged with the fixed end, so that the reciprocating motion of the movable end is realized, and the muscle training effect is achieved.

In view of the above-mentioned related technologies, the inventor believes that there is a defect that the movable end of the training apparatus is hinged to the fixed end, and the training apparatus is generally flexible, i.e. the user can easily drive the movable end to move, but if a high-strength training is required, such as military training, the training target cannot be effectively achieved.

SUMMERY OF THE UTILITY MODEL

In order to make the apparatus be applicable to the training that intensity requirement is higher, this application provides a bench press training apparatus.

The application provides a bench press training apparatus adopts following technical scheme:

the utility model provides a bench press training apparatus, the on-line screen storage device comprises a base, the vertical first support column that is provided with on the base, the vertical second support column that is provided with of opposite side at the base, be provided with the bracket between first support column and second support column, the bracket is articulated with first support column, be equipped with the rotation stop gear who is used for restricting bracket turned angle between bracket and first support column, the activity of the bracket other end is set up on the second support column and is provided with the mechanism of lifting that is used for lifting the bracket, set up the backup pad of holding with the confession user of lying in the below of the mechanism of lifting.

Through adopting above-mentioned technical scheme, the user lies in the backup pad, upwards lifts the mechanism of lifting, and the mechanism of lifting drives the bracket and reciprocates, and the bracket is through rotating the turned angle of stop gear restriction self simultaneously for the user lifts the home range of the mechanism of lifting and is limited, and convenient to use person exerts more thrust, and then promotes the training effect.

Preferably, vertical rigid coupling has two otic placodes of relative setting on the first support column, the one end rigid coupling that is close to first support column at the bracket has the card to establish the outer sleeve of cooperation between two otic placodes, the coaxial inner skleeve that is provided with in the outer sleeve, even rigid coupling has a plurality of connecting plates between outer sleeve and inner skleeve, the stopper of being fixed with elastic material on the connecting plate, it is equipped with the space to leave between two adjacent stoppers, set up the first hole of stepping down that corresponds with the inner skleeve and the second that corresponds with stopper quantity hole of stepping down respectively on two otic placodes, wear to be equipped with in the inner sleeve and rotate the pivot in two first downthehole that steps down, wear to be equipped with in the space of two adjacent stoppers and connect the spacing axle in two second that set up relatively and step down downthehole.

Through adopting above-mentioned technical scheme, the bracket uses the pivot to rotate as the axle, and the spacing axle activity in space between two adjacent stoppers makes the turned angle of bracket be in an within range, and the stopper is the elasticity material for the stopper plays the effect of shock attenuation buffering.

Preferably, the spacing adaptation between stopper and outer sleeve and the inner skleeve sets up the joint groove that supplies the connecting plate joint on the stopper, be provided with respectively along self axial both ends at the stopper with the recess of the global adaptation of spacing axle.

Through adopting above-mentioned technical scheme, set up the joint groove on the stopper, conveniently install the stopper on the connecting plate, the even atress of stopper of being convenient for is favorable to promoting the life of stopper with the global adaptation of spacing axle to the recess.

Preferably, the inner sleeve is embedded with a bearing, the outer ring of the bearing is in interference fit with the inner sleeve, and the inner ring of the bearing is in interference fit with the rotating shaft.

Through adopting above-mentioned technical scheme, the bearing can replace the pivot directly to contact with the inner skleeve, avoids the pivot to be worn and torn by the inner skleeve, is favorable to promoting the life of pivot.

Preferably, the limiting block protrudes out of the outer sleeve and is elastically extruded on the ear plate.

Through adopting above-mentioned technical scheme, stopper elastic extrusion is on the otic placode for there is certain frictional resistance between stopper and the otic placode, this frictional resistance acts on the bracket when the user pushes up the mechanism of lifting, makes the bracket difficult to rotate, and then has promoted training intensity.

Preferably, the bracket includes the extension beam with the outer sleeve rigid coupling and the lifting roof beam of rigid coupling in extension beam keep away from first support column one end, and the lifting roof beam activity is set up on the second support column, is provided with counter weight mechanism on the extension beam, and counter weight mechanism includes the slide rail that sets up along extension beam length direction, is provided with the balancing weight on the slide rail, and the rigid coupling has the slider of being connected with the slide rail slides on the balancing weight, is provided with on the balancing weight and carries out spacing stop gear to slider sliding position on the slide rail.

Through adopting above-mentioned technical scheme, the user can independently select training intensity, through the position that changes the balancing weight, and then changes moment, lets the user experience different tensile strength.

Preferably, be provided with the cavity in the balancing weight, stop gear slides the gag lever post of being connected including setting up in the cavity and towards the direction of slide rail and balancing weight, the upper and lower inner wall that pierces through the balancing weight respectively at the upper and lower both ends of gag lever post, upper surface rigid coupling at the balancing weight has the shrouding that is used for blocking the cavity, the gag lever post is worn to locate the shrouding and is connected with the shrouding slides, global rigid coupling at the gag lever post has spacing piece, spacing piece is located the cavity of balancing weight, still the cover is equipped with compression spring on the gag lever post, compression spring is located between spacing piece and the shrouding, evenly set up a plurality of along the length direction of slide rail at the upper surface of slide rail.

Through adopting above-mentioned technical scheme, the user is when sliding to the balancing weight, at first the tip lifting gag lever post that grasps the gag lever post, thereby make spacing piece towards the direction displacement of shrouding, and make compression spring elastic compression, when the lower extreme of gag lever post removed the position of counterpointing with the jack, make the lower extreme of gag lever post stable the inserting under compression spring's elastic action establish in the jack, thereby the mutual slip of slider and slide rail has been restricted, make bracket lifting in-process, the stable position that corresponds at the slide rail that keeps of slider.

Preferably, stop gear includes and fixes the rack on the slide rail along the length direction of slide rail, the installation cavity has been seted up in the slide rail, be provided with the axis of rotation in the installation cavity, coaxial rigid coupling has driven gear in the axis of rotation, set up the intercommunication groove that is used for making driven gear and rack intermeshing in installation cavity one side, set up the spacing groove that holds the axis of rotation at the installation cavity lower surface, be provided with the supporting spring who supports the axis of rotation in the spacing inslot, there is a plurality of spacing arch at one side rigid coupling of driven gear towards the spacing groove, set up the cooperation groove that is used for holding spacing bellied on the diapire of mounting groove, be provided with the drive in the balancing weight and rotate the spacing inslot of axial and make spacing protruding and cooperation groove mutually block the actuating mechanism who establishes, when spacing protruding and the mutual screens of cooperation groove, follow and move the.

Through adopting above-mentioned technical scheme, when the balancing weight slided with the slide rail each other, can drive the intermeshing of driven gear and rack, if the user fixes a position the balancing weight at the position of slide rail, accessible actuating mechanism pushes down the axis of rotation, thereby make supporting spring elasticity flexible, and driven gear pastes each other with the installation cavity diapire towards one side of installation cavity diapire, and make spacing arch on the driven gear mutually support with the cooperation groove of installation cavity diapire, thereby the free rotation of driven gear has been restricted, driven gear has moved the one end distance when spacing arch and cooperation groove mutually support, but still keep rack and driven gear intermeshing's state, and driven gear's unable rotation has also restricted the continuous slip of slider with the slide rail.

Preferably, actuating mechanism is including rotating the live-rollers of connecting in the counterweight block, and the axis of live-rollers and the axis mutually perpendicular of gag lever post, and the upper end of gag lever post is constantly contradicted at the outer peripheral face of live-rollers, has offered the tangent plane that holds axis of rotation upper end and make supporting spring keep natural state along the axial of live-rollers in the outer peripheral face of live-rollers, is provided with the drive assembly who drives live-rollers pivoted in the one end of live-rollers.

By adopting the technical scheme, in an initial state, the upper end of the rotating shaft is positioned in the tangent plane of the rotating roller, when the counterweight block moves to a position to be fixed, a user drives the rotating roller to rotate through the driving assembly, so that the upper end of the rotating shaft is abutted against the outer peripheral surface of the rotating roller under the guidance of the inner wall of the tangent plane, the rotating shaft is driven to displace in the direction of the limiting groove, and the mutual alignment of the limiting protrusion and the matching groove is realized; and the live-rollers set up in the counterweight block, self has certain weight, not only can not lighten the holistic weight of counterweight block, but also have driven effect, simple structure has improved the efficiency of user's operation greatly.

Preferably, the driving assembly comprises a transmission gear coaxially arranged at one end of the rotating roller and a driving gear meshed with the transmission gear, a turntable is fixedly connected to one side of the driving gear, the turntable is rotatably connected with the balancing weight, and a handrail is fixedly connected to one side of the turntable, which deviates from the driving gear.

Through adopting above-mentioned technical scheme, the user is when removing the balancing weight, and the support of handle is held up to the accessible removes the balancing weight, then if when fixing a position balancing weight position, the handle is held up to the accessible and the carousel is driven and is rotated to through driving gear and drive gear's meshing transmission, thereby drive the live-rollers rotation, simple structure, operating efficiency is high, is convenient for maintain.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the first support column, the second support column, the bracket, the lifting mechanism, the rotation limiting mechanism and the support plate, a user lies on the support plate and lifts the lifting mechanism upwards, the lifting mechanism drives the bracket to move up and down, and meanwhile, the bracket limits the rotation angle of the bracket through the rotation limiting mechanism, so that the moving range of the lifting mechanism lifted by the user is limited, the user can apply more thrust conveniently, and the training effect is further improved;

2. by arranging the counterweight mechanism and the limiting mechanism, a user can independently select the training intensity, and the moment is changed by changing the position of the counterweight block, so that the user can experience different tensile strengths;

3. through setting up actuating mechanism and drive assembly, the user can be comparatively convenient operation and prescribe a limit to the position of counter weight mechanism.

Drawings

FIG. 1 is a schematic structural view of a bench press training apparatus according to embodiment 1 of the present application;

fig. 2 is an exploded view of the rotation limiting mechanism according to embodiment 1 of the present application;

FIG. 3 is a schematic view of the embodiment 1 of the present application showing the fit relationship between the limiting rod and the limiting block;

FIG. 4 is a schematic structural diagram of a limiting block in embodiment 1 of the present application;

fig. 5 is a schematic structural view of a weight mechanism of embodiment 1 of the present application;

fig. 6 is a sectional view of a weight mechanism of embodiment 1 of the present application;

fig. 7 is a schematic structural view of a weight mechanism of embodiment 2 of the present application;

FIG. 8 is a schematic structural view of the inside of a slider mounting chamber in embodiment 2 of the present application;

FIG. 9 is a schematic view showing the positional relationship between a drive mechanism and a rotary shaft in embodiment 2 of the present application;

FIG. 10 is an enlarged detail view taken at A in FIG. 9 and showing the detent structure of the driven gear and the bottom wall of the mounting cavity;

FIG. 11 is a schematic view showing the position-limiting protrusion and the position-locking relation of the fitting groove in embodiment 2 of the present application;

FIG. 12 is a schematic structural view showing the interior of a housing according to embodiment 2 of the present application;

description of reference numerals: 1. a base; 10. a first support column; 100. an ear plate; 1000. a first abdicating hole; 1001. a second abdicating hole; 11. a second support column; 110. a cushion pad; 12. a reinforcing beam; 2. a bracket; 20. extending the beam; 21. lifting the beam; 3. a lifting mechanism; 30. a connecting rod; 31. a holding rod; 32. a protective sleeve; 4. a rotation limiting mechanism; 40. an outer sleeve; 41. a connecting plate; 42. an inner sleeve; 43. a limiting block; 430. a clamping groove; 431. a groove; 44. a bearing; 45. a limiting shaft; 46. a limiting ring; 47. a rotating shaft; 48. a first protective cover; 49. a second protective cover; 490. a yielding groove; 491. a nut; 492. sealing the cover; 5. a support plate; 50. a support leg; 6. a counterweight mechanism; 60. a slide rail; 600. a jack; 61. a slider; 610. a mounting cavity; 611. a communicating groove; 612. a limiting groove; 613. a mating groove; 62. a balancing weight; 620. a housing; 621. a counterweight unit; 622. a yielding groove; 63. a handrail; 64. an anti-drop sheet; 65. a chamber; 7. a limiting mechanism; 70. a limiting rod; 71. closing the plate; 72. a limiting sheet; 73. a compression spring; 74. installing a cap; 75. a rack; 76. a rotating shaft; 77. a support spring; 78. a driven gear; 79. a limiting bulge; 8. a drive mechanism; 80. a rotating roller; 800. cutting into noodles; 9. a drive assembly; 90. a transmission gear; 91. a driving gear; 92. a turntable; 93. a handle.

Detailed Description

The present application is described in further detail below with reference to figures 1-12.

The embodiment of the application discloses bench press training apparatus.

Example 1

Referring to fig. 1, the bench press training apparatus includes a base 1, a group of apparatus using units is arranged on the base 1, and multiple groups may be arranged according to actual conditions; the apparatus using unit comprises a first supporting column 10 vertically fixedly connected with one end of the base 1 and a second supporting column 11 correspondingly fixedly connected with the other end of the base 1, and the number of the second supporting columns 11 is two.

A bracket 2 is arranged between a first support column 10 and a second support column 11, one end of the bracket 2 is erected on the second support column 11, a buffer cushion 110 is fixedly connected to the top end of the second support column 11, the buffer cushion 110 is made of rubber, so that impact caused by the bracket 2 can be buffered and reduced by the buffer cushion 110, the bracket 2 comprises an extension beam 20 and a lifting beam 21, the extension beam 20 is fixedly connected to the lifting beam 21 vertically, the fixed connection point is located at the center of the lifting beam 21, two ends of the lifting beam 21 are movably erected on the second support column 11, a lifting mechanism 3 for a user to lift the bracket 2 is arranged on one side of the lifting beam 21 away from the extension beam 20, the lifting mechanism 3 comprises two connecting rods 30 fixedly connected to the lifting beam 21, the two connecting rods 30 are arranged and extend towards the direction away from the extension beam 20, the two connecting rods 30 are in a splayed shape, a holding rod 31 is fixedly connected to each side of the two connecting rods 30 opposite to each other, a protective sleeve 32 is sleeved on the holding rod 31.

Two sides of the top end of the first support column 10 are respectively and vertically fixedly connected with an ear plate 100; a rotation limiting mechanism 4 is connected between the lug plate 100 and the extension beam 20, the extension beam 20 rotates up and down relative to the lug plate 100 through the rotation limiting mechanism 4, and the rotation stroke of the extension beam 20 is limited through the rotation limiting mechanism 4; a reinforcing beam 12 is further fixedly connected between the two second supporting columns 11, a supporting plate 5 for a user to lie is arranged below the lifting mechanism 3, one end of the supporting plate 5 is erected on the reinforcing beam 12, in other examples, the supporting plate 5 and the reinforcing beam 12 can also be fixedly welded, and a supporting leg 50 is vertically and fixedly connected to the bottom of the other end of the supporting plate 5, so that the supporting plate 5 is stably supported.

Referring to fig. 2 and 3 specifically, the rotation limiting mechanism 4 includes an outer sleeve 40 fixedly connected to one end of the extension beam 20, the outer sleeve 40 is a cylindrical mechanism with openings at two ends, the axial direction of the outer sleeve 40 is perpendicular to the axial direction of the extension beam 20, three connecting plates 41 are uniformly and fixedly connected to the inner wall of the outer sleeve 40 in the direction toward the axial core of the outer sleeve 40, the connecting plates 41 are parallel to the axial direction of the outer sleeve 40, one end of each of the three connecting plates 41 away from the outer sleeve 40 is fixedly connected to a same inner sleeve 42, the inner sleeve 42 is a cylindrical structure with openings at two ends and coincides with the axial direction of the outer sleeve 40, two ends of each of the connecting plates 41 in the axial direction of the outer sleeve 40 are respectively.

Referring to fig. 2 and 4, the whole limiting block 43 is in a trapezoid block shape, the shape and size of the limiting block 43 are matched with the space between the outer sleeve 40 and the inner sleeve 42, the side surface of the limiting block 43 protrudes out of the outer sleeve 40, so that the limiting block 43 is elastically extruded on the ear plate 100, the limiting block 43 is provided with a clamping groove 430 for clamping the connecting plate 41, two sides of the limiting block 43 are respectively provided with a groove 431 with a circular arc-shaped section, and a space is reserved between two adjacent limiting blocks 43; a bearing 44 is embedded in the inner sleeve 42, and the outer ring of the bearing 44 is in interference fit with the inner sleeve 42.

Referring to fig. 2 and 3 again, a first abdicating hole 1000 and three second abdicating holes 1001 are respectively and correspondingly formed on the two ear plates 100, the first abdicating hole 1000 is located at the center, the three second abdicating holes 1001 are uniformly arranged around the first abdicating hole 1000, a limiting shaft 45 is respectively penetrated in the three second abdicating holes 1001, the limiting shaft 45 is penetrated in a space between the two adjacent limiting blocks 43, so that the limiting shaft 45 has a certain moving range, two ends of the limiting shaft 45 respectively protrude out of the two ear plates 100 towards two sides, two limiting rings 46 for limiting the axial movement of the limiting shaft 45 are respectively sleeved at two ends of the same limiting shaft 45, the two limiting rings 46 are respectively located at one side of the two ear plates 100 opposite to each other, a rotating shaft 47 is penetrated in the bearing 44, the rotating shaft 47 is in interference fit with the inner ring of the bearing 44, a first protecting cover 48 is vertically and fixedly connected to one end of the rotating shaft 47, the first protecting cover 48 is arranged at the outer side of, a second protecting cover 49 is arranged on the outer side of the other ear plate 100, an avoiding groove 490 is arranged at the center position of the second protecting cover 49, the rotating shaft 47 vertically penetrates the avoiding groove 490, an external thread is arranged on the circumferential surface of the end part of the rotating shaft 47, a nut 491 is arranged in the avoiding groove 490, the nut 491 is screwed with the rotating shaft 47, a sealing cover 492 is further arranged on the avoiding groove 490, and the nut 491 is sealed in the avoiding groove 490 through the sealing cover 492.

When extension beam 20 is vertical to rotate, only allow the space activity of spacing axle 45 between two adjacent stopper 43, stopper 43 has certain elasticity simultaneously, can carry out elastic deformation for spacing axle 45 rigid contact has promoted spacing axle 45's life.

With reference to fig. 1 and 5, in order to adapt the training apparatus to users with different training intensity requirements, a counterweight mechanism 6 is also provided on the upper surface of each elongated beam 20; counter weight mechanism 6 includes along the length direction rigid coupling of extension beam 20 at the slide rail 60 of extension beam 20 upper surface, and it is connected with slider 61 to slide on the slide rail 60, and the upper surface rigid coupling of slider 61 has the balancing weight 62, and the balancing weight 62 respectively has a handrail 63 towards the each rigid coupling of moving direction both sides to be convenient for control balancing weight 62 and slide on slide rail 60, and balancing weight 62 still is last to be provided with stop gear 7 that carries out the maintenance to slider 61 sliding position.

Referring to fig. 5 and 6, a cylindrical chamber 65 is formed in the counterweight block 62, the axial direction of the chamber 65 is perpendicular to the axial direction of the slide rail 60, and an opening is formed above the chamber 65; the limiting mechanism 7 comprises a limiting rod 70 coaxially arranged in the cavity 65, the lower end of the limiting rod 70 penetrates through the balancing weight 62 and points to the upper surface of the sliding rail 60, and the upper end of the limiting rod 70 is higher than the upper surface of the balancing weight 62; an annular sealing plate 71 is arranged above the opening of the cavity 65 of the counterweight block 62, the sealing plate 71 is fixed at the edge of the opening of the cavity 65 through a plurality of bolts, and the upper end of the limiting rod 70 penetrates through the sealing plate 71 and is connected with the sealing plate 71 in a sliding manner; the circumferential surface of the limiting rod 70 is also coaxially and fixedly connected with an annular limiting sheet 72, and the limiting sheet 72 is positioned in the cavity 65; a compression spring 73 is further sleeved on the limiting rod 70, the upper end of the compression spring 73 abuts against the lower surface of the sealing plate 71, and the lower end of the compression spring 73 abuts against the upper surface of the limiting rod 70; and a plurality of insertion holes 600 for accommodating the lower end of the limiting rod 70 to be inserted are uniformly formed in the upper surface of the slide rail 60 along the length direction of the slide rail 60.

The upper end of the limiting rod 70 is further connected with a mounting cap 74 in a threaded mode, and the longitudinal section of the mounting cap 74 is T-shaped, so that the holding area of a hand and the limiting rod 70 is increased, and the convenience in operation of the limiting rod 70 is improved.

Referring to fig. 5, two ends of each sliding rail 60 are further provided with anti-falling pieces 64, the anti-falling pieces 64 are fixed on the upper surface of the extension beam 20, and the size of the anti-falling pieces 64 is larger than the size of the cross section of the sliding rail 60, so that the sliding block 61 is limited from being separated from the end of the sliding rail 60, and the safety of the training apparatus in the using process is improved.

The implementation principle of the embodiment 1 is as follows: a user lies on the supporting plate 5, holds the holding rod 31 with both hands, then pushes the holding rod 31 upwards, the extension beam 20 can rotate upwards by a certain angle under the limiting action of the rotation limiting mechanism 4, and then cannot continue to rotate under the limiting action of the limiting block 43, so that resistance is provided by the limiting block 43, the pushing difficulty of the pushing mechanism 3 is improved, meanwhile, the limiting block 43 protrudes out of one part of the outer sleeve 40, the limiting block 43 is elastically extruded on the ear plate 100, the rotation resistance of the extension beam 20 is increased, and the training difficulty is improved; when the user needs to further increase the training intensity, can pull out jack 600 with gag lever post 70 upwards, then handheld handrail 60 removes balancing weight 62 to the one side that is close to lifting beam 21, loosens gag lever post 70 afterwards, makes its gag lever post 70 reinsert in corresponding jack 600, and then makes balancing weight 62 fixed in position, changes user's training intensity promptly through moment.

Example 2

Referring to fig. 7 and 8, the present embodiment is different from embodiment 1 in that a weight block 62 includes a housing 620 and a weight unit 621; referring to fig. 8 and 9, a mounting cavity 610 is formed in the upper surface of the slider 61 along the height direction of the slider 61, and the mounting cavity 610 is located at one side of the slide rail 60.

Referring to fig. 7 and 8 again, the limiting mechanism 7 includes a rack 75 fixedly connected to one side of the sliding rail 60 facing the installation cavity 610, and the length of the rack 75 is the same as that of the sliding rail 60; one side of the sliding block 61 is provided with a communication groove 611 which is used for accommodating the rack 75 and communicated with the mounting cavity 610, so that when the sliding block 61 and the sliding rail 60 slide mutually, the rack 75 cannot interfere with the sliding block 61; a rotating shaft 76 is vertically arranged in the mounting cavity 610 along the height direction of the mounting cavity 610, a limiting groove 612 for accommodating the lower end part of the rotating shaft 76 is formed in the bottom surface of the mounting cavity 610, and a supporting spring 77 for supporting the rotating shaft 76 is arranged in the limiting groove 612; the driven gear 78 is coaxially and fixedly connected to the rotating shaft 76, and in an initial state, the rotating shaft 76 is supported by the supporting spring 77, so that a gap is left between the driven gear 78 and the bottom surface of the mounting cavity 610, and the driven gear 78 is meshed with the rack 75; when the slide block 61 and the slide rail 60 slide with each other, the rack 75 and the driven gear 78 are engaged with each other to drive the driven gear 78 to rotate freely around the axis of the rotating shaft 76.

Referring to fig. 9 and 10, six hemispherical limiting protrusions 79 are uniformly and fixedly connected to the lower surface of the driven gear 78 with the center of the driven gear 78 as the center of circle, mating grooves 613 for accommodating the limiting protrusions 79 are formed in the bottom surface of the mounting cavity 610 corresponding to the six limiting protrusions 79, and a driving mechanism 8 for driving the rotating shaft 76 to move downwards to enable the limiting protrusions 79 to be inserted into the corresponding mating grooves 613 so as to limit the rotation of the driven gear 78 is further arranged in the counterweight block 62; referring to fig. 10 and 11, the fitting state of the stopper projection 79 with the fitting groove 613 can be known.

Referring to fig. 9 and 10, the weight block 62 includes a housing 620 and a weight unit 621 inserted into the housing 620; the upper end of the rotating shaft 76 penetrates into the shell 620 and is connected with the shell 620 in a sliding way; the driving mechanism 8 comprises a rotating roller 80 which is arranged in the shell 620 and is rotationally connected with the inner wall of the shell 620, the rotating roller 80 is positioned right above the rotating shaft 76, the upper end surface of the rotating shaft 76 is in contact with the outer peripheral surface of the rotating roller 80, and the extension line of the axis of the rotating shaft 76 is vertical to and interferes with the axis of the rotating roller 80; the circumferential surface of the rotating roller 80 is provided with a tangent plane 800 along the length direction of the rotating roller 80, thereby reducing the local radius of the rotating roller 80, and when the rotating shaft 76 is in the initial state, the upper end of the rotating shaft 76 abuts against the tangent plane 800 area of the rotating roller 80, so that the supporting spring 77 is in a natural state.

Referring to fig. 7 and 12, a driving assembly 9 for driving the rotating roller 80 to rotate is further provided at one end of the rotating roller 80; the driving assembly 9 comprises a transmission gear 90 coaxially and fixedly connected to one end of the rotating roller 80, a driving gear 91 meshed with the transmission gear 90 is rotatably connected to the side wall of the shell 620, which is close to the transmission gear 90, a rotary disc 92 coaxially and fixedly connected with the driving gear 91 is arranged on the outer wall of the shell 620, and the rotary disc 92 is rotatably connected with the outer wall of the shell 620; the side of the rotary plate 92 away from the driving gear 91 is further fixedly connected with a handle 93, so that a user can drive the rotary plate 92 to rotate through the handle 93, and the rotary plate is meshed with the transmission gear 90 through the driving gear 91 to realize the rotation of the rotating roller 80.

Referring to fig. 9, a yielding groove 622 is formed at a position where the lower surface of the weight unit 621 interferes with the rotating roller 80 and the driving assembly 9, so that after the weight unit 621 is inserted into the housing 620, normal operation of the driving mechanism 8 is not affected, and a user can maintain the driving mechanism 8 by detaching the weight unit 621, thereby improving maintenance efficiency.

The implementation principle of the embodiment 2 is as follows: when a user uses the balancing weight 62, the user can hold the holding handle 93 and drive the balancing weight 62 to slide on the sliding rail 60, at the moment, the driven gear 78 freely rotates in the installation cavity 610 under the mutual engagement with the rack 75, and when the user needs to fix the sliding relative position of the sliding block 61 and the sliding rail 60, the user can rotate the holding handle 93, drive the rotating disc 92 to rotate, and drive the rotating roller 80 to rotate through the mutual engagement of the driving gear 91 and the transmission gear 90; when the rotating shaft 76 is in an initial state, the upper end of the rotating shaft 76 is located at the tangent plane 800 of the rotating roller 80, and along with the rotation of the rotating roller 80, the rotating shaft 76 is displaced towards the bottom of the limiting groove 612 under the limiting action of the limiting groove 612, and drives the supporting spring 77 to elastically compress, and meanwhile, the limiting protrusion 79 on the lower surface of the driven gear 78 is clamped in the corresponding matching groove 613, so that the free rotation of the driven gear 78 is limited, and at the moment, the driven gear 78 is also kept in a state of being meshed with the rack 75, and further, the relative sliding between the sliding block 61 and the sliding rail 60 is limited; and the user only needs to operate the armrest handle 93 to fix the relative position of the balancing weight 62 on the sliding rail 60, so that the operation is simple and the effect is obvious.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A bench press training apparatus, characterized in that: the lifting device comprises a base (1), a first supporting column (10) is vertically arranged on the base (1), a second supporting column (11) is vertically arranged on the other side of the base (1), a bracket (2) is arranged between the first supporting column (10) and the second supporting column (11), the bracket (2) is hinged to the first supporting column (10), a rotation limiting mechanism (4) used for limiting the rotation angle of the bracket (2) is arranged between the bracket (2) and the first supporting column (10), the other end of the bracket (2) is movably arranged on the second supporting column (11) and provided with a lifting mechanism (3) used for lifting the bracket (2), and a supporting plate (5) used for a user to lie is arranged below the lifting mechanism (3).

2. Bench press training device according to claim 1, characterized in that: vertical rigid coupling has two otic placodes (100) of relative setting on first support column (10), one end rigid coupling that is close to first support column (10) in bracket (2) has outer sleeve (40) of card equipment cooperation between two otic placodes (100), coaxial inner skleeve (42) that is provided with in outer sleeve (40), even rigid coupling has a plurality of connecting plates (41) between outer sleeve (40) and inner skleeve (42), stopper (43) of being fixed with elastic material on connecting plate (41), it is equipped with the space to leave between two adjacent stoppers (43), set up respectively on two otic placodes (100) and abdicate in the hole (1001) with the first hole (1000) of stepping down that correspond with inner skleeve (42) and with the second hole (1001) that stopper (43) quantity corresponds, wear to be equipped with pivot (47) that rotate the support in two first holes (1000) of stepping down in inner sleeve (42), wear to be equipped with in the space of two adjacent stoppers (43) to connect in two second holes (1001) of stepping down that set up relatively ) An inner limit shaft (45).

3. Bench press training device according to claim 2, characterized in that: spacing adaptation between stopper (43) and outer sleeve (40) and inner skleeve (42) is seted up joint groove (430) that supply the connecting plate joint on stopper (43), be provided with respectively along self axial both ends at stopper (43) with recess (431) of the global adaptation of spacing axle (45).

4. Bench press training device according to claim 2, characterized in that: the bearing (44) is embedded in the inner sleeve (42), the outer ring of the bearing (44) is in interference fit with the inner sleeve (42), and the inner ring of the bearing (44) is in interference fit with the rotating shaft (47).

5. Bench press training device according to claim 2, characterized in that: the limiting block (43) protrudes out of the outer sleeve (40) and is elastically extruded on the ear plate (100).

6. Bench press training device according to claim 2, characterized in that: bracket (2) include extension roof beam (20) and rigid coupling with outer sleeve (40) rigid coupling keep away from lifting roof beam (21) of first support column (10) one end in extension roof beam (20), lifting roof beam (21) activity is set up on second support column (11), be provided with counter weight mechanism (6) on extension roof beam (20), counter weight mechanism (6) include slide rail (60) along extension roof beam (20) length direction setting, be provided with balancing weight (62) on slide rail (60), the rigid coupling has slider (61) of being connected with slide rail (60) slide on balancing weight (62), be provided with on balancing weight (62) to slider (61) slide position on slide rail (60) and carry out spacing stop gear (7).

7. Bench press training equipment as claimed in claim 6, characterized in that: a chamber (65) is arranged in the balancing weight (62), the limiting mechanism (7) comprises a limiting rod (70) which is arranged in the chamber (65) and connected with the balancing weight (62) in a sliding way towards the direction of the sliding rail (60), the upper end and the lower end of the limiting rod (70) respectively penetrate through the upper inner wall and the lower inner wall of the balancing weight (62), a sealing plate (71) for sealing the cavity (65) is fixedly connected on the upper surface of the balancing weight (62), the limiting rod (70) is arranged in the sealing plate (71) in a penetrating way and is connected with the sealing plate (71) in a sliding way, the circumferential surface of the limiting rod (70) is fixedly connected with a limiting sheet (72), the limiting sheet (72) is positioned in the cavity (65) of the balancing weight (62), a compression spring (73) is also sleeved on the limiting rod (70), the compression spring (73) is positioned between the limiting sheet (72) and the sealing plate (71), a plurality of jacks (600) for accommodating the lower end of the limiting rod (70) to be inserted and clamped are uniformly formed in the upper surface of the sliding rail (60) along the length direction of the sliding rail (60).

8. Bench press training equipment as claimed in claim 6, characterized in that: limiting mechanism (7) is including fixing rack (75) on slide rail (60) along the length direction of slide rail (60), install chamber (610) has been seted up in slide rail (60), be provided with axis of rotation (76) in install chamber (610), coaxial rigid coupling has driven gear (78) on axis of rotation (76), set up in install chamber (610) one side and be used for making driven gear (78) and rack (75) intermeshing's intercommunication groove (611), set up spacing groove (612) that hold axis of rotation (76) on install chamber (610) lower surface, be provided with support spring (77) that support axis of rotation (76) in spacing groove (612), driven gear (78) one side rigid coupling towards spacing groove (612) have a plurality of spacing arch (79), set up on the diapire of installation groove and be used for holding spacing arch (79) cooperation groove (613), it drives axis of rotation (76) and removes and makes spacing arch(s) to spacing arch (612) in balancing weight (62) 79) And a driving mechanism (8) which is clamped with the matching groove (613), wherein when the limiting protrusion (79) is clamped with the matching groove (613), the driven gear (78) and the rack (75) keep a meshed state.

9. Bench press training equipment as claimed in claim 8, characterized in that: actuating mechanism (8) are including rotating live-rollers (80) of connecting in balancing weight (62), the axis of live-rollers (80) and the axis mutually perpendicular of gag lever post (70), the upper end of gag lever post (70) is contradicted at the outer peripheral face of live-rollers (80) constantly, offer tangent plane (800) that hold axis of rotation (76) upper end messenger supporting spring (77) and keep natural state along the axial of live-rollers (80) at the outer peripheral face of live-rollers (80), one end at live-rollers (80) is provided with drives live-rollers (80) pivoted drive assembly (9).

10. Bench press training equipment as claimed in claim 9, characterized in that: drive assembly (9) including coaxial setting at drive gear (90) of live-rollers (80) one end and with drive gear (90) intermeshing's driving gear (91), one side rigid coupling of driving gear (91) has carousel (92), carousel (92) rotate with balancing weight (62) to be connected, one side rigid coupling that deviates from driving gear (91) in carousel (92) has handrail (93).

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