CN106362355B - Treadmill with buffer structure - Google Patents

Abstract

The invention discloses a kind of treadmills with buffer structure, including pedestal, front column, rear column, running apparatus, operating mechanism, the cover and treadmill belt, buffer structure is arranged in the present invention on running apparatus, to achieve the effect that the buffering dynamics for adjusting treadmill and improve comfort, the present invention can realize the adjustment to treadmill belt angle by changing the rigging position relationship of pedestal and left column, right column simultaneously, it is reasonable integral structure, easy to operate to adapt to different crowd.It the composite can be widely applied to treadmill technical field.

Description

Treadmill with cushioning structure

technical field

The invention relates to the technical field of treadmills, in particular to a treadmill with a buffer structure.

Background technique

The main cushioning components used in many treadmills today are only provided with several rubber cushions between the running frame and the running board, so that after the running board is stressed, it can directly generate cushioning force, thereby reducing the weight of the runner. When exercising, the feet bear the reaction force, but the comfort of using rubber cushions as cushioning parts is poor. Of course, it cannot meet the actual needs of most users. In addition, because the angle of the treadmill is not adjustable, it cannot meet the needs of most users. human needs.

Contents of the invention

The technical problem to be solved by the present invention is to provide a treadmill with a buffer structure, which can solve the above-mentioned problems in the prior art.

In order to achieve the above object, the present invention is achieved through the following technical solutions:

A treadmill with a cushioning structure, comprising a base, a front column, a rear column, a running mechanism, an operating mechanism, a cover and a running belt, the base includes a front base riser, a rear base riser and connecting The base connecting plate of the front base vertical plate and the rear base vertical plate, the left ends of the front base vertical plate and the rear base vertical plate are respectively provided with a front vertical plate threaded hole and a rear vertical plate threaded hole, so The right ends of the front base vertical plate and the rear base vertical plate are respectively provided with a front vertical plate positioning chute and a rear vertical plate positioning chute, and the front vertical plate positioning chute and the rear vertical plate positioning chute are respectively provided with A plurality of front vertical panel positioning grooves and rear vertical panel positioning grooves, the lower ends of the front column and the rear vertical column are respectively provided with front column threaded holes corresponding to the front vertical panel threaded holes and the rear vertical panel threaded holes and rear column threaded holes, to fix the front column and the front base vertical plate and the rear column and the rear base vertical plate respectively by bolts, the front column is arranged on the front column and above the front column threaded hole Sliding slots, the front column sliding slots are provided with front column grooves corresponding to the number of positioning grooves of the front vertical plate, and rear column sliding grooves are provided on the rear column and above the rear column threaded holes. Slots, the rear column sliding slots are provided with rear column grooves corresponding to the number of positioning grooves of the rear vertical plate, on the front column and the rear column and are located in the front column sliding groove and the A front bearing shaft fixing hole and a rear bearing shaft fixing shaft are respectively arranged above the sliding groove of the rear column, and an operating mechanism is arranged on the top of the front column and the rear column, and the running mechanism includes a front vertical board and a rear vertical board And the vertical plate connection plate connecting the lower end of the front vertical plate and the lower end of the rear vertical plate, the left end of the front vertical plate and the rear vertical plate is rotatably equipped with a vertical plate connecting shaft, and the vertical plate connecting shaft The middle position is rotatably equipped with an adjustment seat, and the adjustment seat includes two support arms assembled with the connecting shaft of the vertical plate and a connecting arm connected to the top ends of the two support arms, and the lower ends of the two support arms are arranged on the left side There is a drop handle, the upper plane of the connecting arm is provided with a threaded hole of the connecting arm to be threadedly matched with the angle adjusting threaded rod, the upper end of the angle adjusting threaded rod is equipped with an angle adjusting motor, and the upper end of the angle adjusting motor is provided with Bearing seat, the bearing seat is equipped with a bearing shaft extending in the front-rear direction, the front end and the rear end of the bearing shaft are connected with the front bearing shaft fixing hole on the front column and the rear bearing on the rear column through adjusting bolts respectively. The shaft is fixed to the shaft assembly, and a driving motor is installed on the connecting plate of the vertical plate and on the right side of the connecting shaft of the vertical plate. The front end of the driving motor is provided with a driving gear, and the right side of the driving gear is equipped with a Driven gear, the driven gear is fixedly assembled with the driving roller at the rear end through the connecting shaft of the driving roller, the connecting shaft of the driving roller passes through one end of the driven gear and is rotatably assembled with the front vertical plate, the driving roller The connecting shaft passes through one end of the driving drum and is rotatably assembled with the rear vertical plate, and the outer right end of the front vertical plate and the rear vertical plate is fixedly equipped with a lateral sliding shaft, and the front vertical plate and the rear vertical plate On and on the left side of the lateral sliding shaft are respectively provided with sliding grooves of the front driven assembly and a rear driven assembly A sliding groove of a member, a driven wheel assembly is slidably fitted in the sliding groove of the front driven assembly and the rear driven assembly, and the driven wheel assembly includes a driven wheel main shaft and an interference fit with the driven wheel main shaft The driven main wheel is provided with a front bearing and a rear bearing respectively on the driven wheel main shaft and at the front end and rear end of the driven main wheel, and on the driven wheel main shaft and at the front end and rear end of the front bearing The rear end of the rear bearing is respectively provided with a front driven wheel and a rear driven wheel splined with the driven wheel main shaft, the front end of the driven wheel main shaft is slidingly fitted with the sliding groove of the front driven assembly, and the The front end of the driven wheel main shaft protrudes from the end of the front driven assembly sliding groove and is fixedly assembled with the front fixing nut, the rear end of the driven wheel main shaft is slidingly assembled with the rear driven assembly sliding groove and the driven wheel main shaft The rear end protrudes from the end of the sliding groove of the rear driven assembly and is fixedly assembled with the rear fixing nut. The left end of the driven wheel assembly is provided with a buffer bracket. The buffer bracket includes a buffer bracket body, and the right side of the buffer bracket body is The front end and the rear end of the buffer bracket are respectively provided with a front semicircle bracket and a rear semicircle bracket assembled with the front bearing and the rear bearing, and the left side surface of the buffer bracket body is respectively provided with front and rear brackets extending in the left and right directions along the front and rear directions. For the sliding cylinder and the rear sliding cylinder, a buffer frame fixing rod is arranged between the front vertical board and the rear vertical board and on the left side of the buffer bracket. A front fixing sleeve and a rear fixing sleeve extending along the left and right directions are provided, and the front fixing sleeve and the rear fixing sleeve are respectively slidably assembled with the front sliding cylinder and the rear sliding cylinder, and the front A front buffer spring and a rear buffer spring are respectively set on the fixing sleeve and the rear fixing sleeve, a running belt is installed on the driving roller and the driven wheel assembly, and a running belt is installed on the front vertical board and the rear vertical board. The cover is provided with running belt escape holes.

As another definition, the steering mechanism includes a steering mechanism body and a front connecting rod and a rear connecting rod respectively arranged at the front and rear bottoms of the steering mechanism body, and the front connecting rod and the rear connecting rod both include An inclined section connected with the operating mechanism body and a horizontal section extending horizontally along the bottom end of the inclined section.

As another limitation, a front fixing sleeve and a rear fixing sleeve are respectively arranged on the top ends of the front upright and the rear upright, and the front fixing sleeve and the rear fixing sleeve are both provided with pressing Bolts, the front fixing sleeve and the rear fixing sleeve are assembled with the inclined sections of the front connecting rod and the rear connecting rod respectively.

As a further definition, the base connecting plate includes a first connecting plate disposed on the left side of the front base vertical plate and the rear base vertical plate and a first connecting plate disposed on the left side of the front base vertical plate and the rear base vertical plate. The second connecting plate on the right side of the plate, the length of the first connecting plate is greater than the length of the second connecting plate, and weight-reducing holes are arranged on the first connecting plate and the second connecting plate.

The present invention has adopted above-mentioned structure, and it compares with prior art, and the technical progress that obtains is:

The present invention can adjust the angle of the running belt by changing the assembly position relationship between the base and the left upright and right upright, so as to adapt to different groups of people. In addition, the present invention also sets a buffer structure on the running mechanism to adjust the buffer of the treadmill The strength and the effect of improving the comfort of use, the overall structure is reasonable, and the operation is simple.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention.

Fig. 1 is the front view of the overall structure described in the embodiment of the present invention;

Fig. 2 is a perspective view of the overall structure described in the embodiment of the present invention;

Fig. 3 is a schematic structural diagram of the base described in the embodiment of the present invention;

Fig. 4 is a schematic structural view of the left column and the right column described in the embodiment of the present invention;

Fig. 5 is a structural schematic diagram of an angle of the running mechanism according to the embodiment of the present invention;

Fig. 6 is a structural schematic diagram of another angle of the running mechanism according to the embodiment of the present invention;

7 is a schematic structural view of the buffer bracket described in the embodiment of the present invention;

Fig. 8 is a schematic structural diagram of a driven wheel assembly according to an embodiment of the present invention;

Fig. 9 is a schematic structural view of the cover described in the embodiment of the present invention;

Fig. 10 is a schematic structural diagram of the operating mechanism described in the embodiment of the present invention.

In the accompanying drawings: 1-base, 111-front base vertical plate, 1111-front vertical plate threaded hole, 1112-front vertical plate positioning chute, 1113-front vertical plate positioning groove, 112-rear base vertical Plate, 1121-rear vertical plate threaded hole, 1122-rear vertical plate positioning chute, 1123-rear vertical plate positioning groove, 113-first connecting plate, 114-second connecting plate, 21-front column, 2111-front Column threaded hole, 2112-front column sliding groove, 2113-front column groove, 2114-front bearing shaft fixing hole, 212-front fixing sleeve, 22-rear column, 2211-rear column threaded hole, 2212-rear column sliding Slot, 2213-rear column groove, 2214-rear bearing shaft fixed shaft, 222-rear fixed sleeve, 3-carrying mechanism, 31-front vertical plate, 311-transverse sliding shaft, 32-rear vertical plate, 33, Vertical plate connecting plate, 34-loading shaft, 341-bearing seat, 342-angle adjustment motor, 344-angle adjustment threaded rod, 351-adjusting seat, 352-drop handle, 353-vertical plate connecting shaft, 361-drive motor, 3611-driving gear, 362-driving roller, 3621-driven gear, 3622-connecting shaft of driving roller, 371-buffer frame fixing rod; 3711-front fixing sleeve; 3712-rear fixing sleeve; 3721-front driven assembly Sliding groove; 3722-sliding groove of rear driven assembly; 3731-front buffer spring; 3732-rear buffer spring; 38-buffer bracket; 381-buffer bracket body; 3811-front sliding cylinder; Round bracket; 3822-rear semicircle bracket; 39-driven wheel assembly; 391-driven main wheel; 3911, front driven wheel; 3912-rear driven wheel; 392-driven wheel main shaft; 3941-front fixed nut; 3942-rear fixed nut; 4-control mechanism, 411-control mechanism body, 412-front connecting rod, 413-rear connecting rod, 5-cover, 511-running belt avoidance hole, 6-running bring.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, further elaborate the present invention. In the following detailed description, certain exemplary embodiments of the invention are described by way of illustration only. Needless to say, those skilled in the art would realize that the described embodiments can be modified in various different ways, all without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

It should be noted that the orientation words "front, back, left, and right" appearing in this article are all based on the front view of the overall structure described in the embodiment of the present invention in Figure 1, and are only for clearly expressing the technical solution. The technical solution claimed by the invention does not constitute a limitation.

As shown in the figure, a treadmill with a buffer structure according to an embodiment of the present invention includes a base 1, a front column 21, a rear column 22, a running mechanism 3, an operating mechanism 4, a cover 5 and a running belt 6. The base 1 comprises a front base riser 111, a rear base riser 112 and a base connection plate connecting the front base riser 111 and the rear base riser 112, the front base riser 111 and the rear base riser 112 The left end of base riser 112 is provided with front riser threaded hole 1111 and rear riser threaded hole 1121 respectively, and the right end of described front base riser 111 and rear base riser 112 is provided with front riser positioning chute respectively 1112 and rear vertical plate positioning chute 1122, described front vertical plate positioning chute 1112 and rear vertical plate positioning chute 1122 are respectively provided with a plurality of front vertical plate positioning grooves 1113 and rear vertical plate positioning groove 1123, so The lower ends of the front column 21 and the rear column 22 are respectively provided with a front column threaded hole 2111 and a rear column threaded hole 2211 corresponding to the front panel threaded hole 1111 and the rear panel threaded hole 1121, so as to respectively connect The front column 21 is fixed with the front base vertical plate 111 and the rear column 22 is fixed with the rear base vertical plate 112, and a front column sliding groove 2112 is arranged on the front column 21 and above the front column threaded hole 2111, so that The front column sliding groove 2112 is provided with a front column groove 2113 corresponding to the number of the front vertical panel positioning grooves 1113, and a rear column is arranged on the rear column 22 and above the rear column threaded hole 2211. Sliding slot 2212, the rear column sliding slot 2212 is provided with rear column grooves 2213 corresponding to the number of rear vertical plate positioning grooves 1123, on the front column 21 and the rear column 22 and located in the A front bearing shaft fixing hole 2114 and a rear bearing shaft fixing shaft 2214 are respectively provided above the front column sliding groove 2112 and the rear column sliding groove 2212, and an operating mechanism is arranged at the top of the front column 21 and the rear column 22 4. The running mechanism 3 comprises a front vertical board 31 and a rear vertical board 32 and a vertical board connecting plate 33 connecting the lower end of the front vertical board 31 and the lower end of the rear vertical board 32, the front vertical board 31 and the rear vertical board 32 The left end of the rear vertical board 32 is rotatably equipped with a vertical board connecting shaft 353, and the middle position of the vertical board connecting shaft 353 is rotatably equipped with an adjustment seat 351, and the adjustment seat 351 includes two connecting shafts 353 connected to the vertical board. The assembled support arm and the connecting arm connected to the top of the two support arms, the lower left side of the lower end of the two support arms are provided with a drop handle 352, and the upper plane of the connecting arm is provided with a threaded hole for the connecting arm to adjust the angle. The threaded rod 344 is threaded, the upper end of the angle adjustment threaded rod 344 is equipped with an angle adjustment motor 342, the upper end of the angle adjustment motor 342 is provided with a bearing seat 341, and the bearing seat 341 is equipped with a bearing extending in the front and rear direction. shaft 34, the front end and the rear end of the bearing shaft 34 are respectively connected with the front bearing shaft fixing hole 2114 on the front column 21 and the rear end by adjusting bolts. The rear bearing shaft fixed shaft 2214 on the column 22 is assembled, and a drive motor 361 is installed on the vertical plate connecting plate 33 and on the right side of the vertical plate connecting shaft 353, and the front end of the drive motor 361 is provided with a drive gear 3611, the right side of the driving gear 3611 is equipped with a driven gear 3621, the driven gear 3621 is fixedly assembled with the driving roller 362 at the rear end through the driving roller connecting shaft 3622, and the driving roller connecting shaft 3622 passes through the slave One end of the driving gear 3621 is rotatably assembled with the front vertical plate 31, and the driving roller connecting shaft 3622 passes through one end of the driving roller 362 and is rotatably assembled with the rear vertical plate 32. The front vertical plate 31 and The outside of the right end of the rear vertical plate 32 is fixedly equipped with a lateral sliding shaft 311, and the front driven assembly sliding grooves are respectively arranged on the front vertical plate 31 and the rear vertical plate 32 and on the left side of the lateral sliding shaft 311. 3721 and the rear driven assembly sliding groove 3722, the driven wheel assembly 39 is slidably fitted in the front driven assembly sliding groove 3721 and the rear driven assembly sliding groove 3722, and the driven wheel assembly 39 includes a driven wheel main shaft 392 And the driven main wheel 391 that is interference-fitted with the driven wheel main shaft 392, on the driven wheel main shaft 392 and at the front end and rear end of the driven main wheel 391 are respectively provided with a front bearing 3931 and a rear bearing 3932 On the driven wheel main shaft 392 and at the front end of the front bearing 3931 and the rear end of the rear bearing 3932 are respectively provided with a front driven wheel 3911 and a rear driven wheel 3912 splined with the driven wheel main shaft 392 The front end of the driven wheel main shaft 392 is slidably fitted with the sliding groove 3721 of the front driven assembly, and the front end of the driven wheel main shaft 392 extends out of the sliding groove 3721 of the front driven assembly and is fixed with the front fixing nut 3941 Assembly, the rear end of the driven wheel main shaft 392 is slidably assembled with the rear driven assembly sliding groove 3722 and the rear end of the driven wheel main shaft 392 protrudes from the end of the rear driven assembly sliding groove 3722 and is fixed to the rear The nut 3942 is fixedly assembled, and the left end of the driven wheel assembly 39 is provided with a buffer bracket 38, and the buffer bracket 38 includes a buffer bracket body 381, and the front and rear ends on the right side of the buffer bracket body 381 are respectively provided with The front semicircle bracket 3821 and the rear semicircle bracket 3822 assembled by the bearing 3931 and the rear bearing 3932, the front sliding cylinder 3811 and the rear sliding cylinder 3811 extending along the left and right directions are respectively arranged on the left side of the buffer bracket body 381 along the front and rear directions 3812, between the front vertical plate 31 and the rear vertical plate 32 and on the left side of the buffer bracket 38, a buffer frame fixing rod 371 is provided, and the right side of the buffer frame fixing rod 371 is along the front and rear directions respectively A front fixing sleeve 3711 and a rear fixing sleeve 3712 extending in the left-right direction are provided, and the front fixing sleeve 3711 and the rear fixing sleeve 3712 are connected with the front sliding cylinder 3811 and the rear fixing sleeve 3712 respectively. The rear sliding cylinder 3812 is slidably assembled, and a front buffer spring 3731 and a rear buffer spring 3732 are respectively set on the front fixing sleeve 3711 and the rear fixing sleeve 3712. The driving roller 362 and the driven wheel assembly 39 is equipped with a running belt 6, and a cover 5 is assembled on the front vertical plate 31 and the rear vertical plate 32, and the running belt avoidance hole 511 is provided on the described cover 5.

In an embodiment of the present invention, the front column 21 and the front base vertical plate 111 and the rear column 22 and the rear base vertical plate 112 can be fixed respectively by bolts, and the two ends of the vertical plate connecting shaft 353 on the running mechanism 3 are respectively connected to One of the front column grooves 2113 on the front column sliding groove 2112 and one of the rear column grooves 2213 on the rear column sliding groove 2212 are assembled, and the two ends of the lateral sliding shaft 311 on the running mechanism 3 are positioned with the front vertical plate respectively One of the front vertical plate positioning grooves 1113 on the chute 1112 and one of the rear vertical plate positioning grooves 1123 on the rear vertical plate positioning chute 1122 are assembled. When starting the treadmill, the driving motor 361 drives the driven gear 3611 The gear 3621 rotates, and then drives the driving drum 362 to rotate, thereby driving the running belt 6 to move. When the angle of the running belt 6 needs to be improved, the angle adjustment motor 342 drives the angle adjustment threaded rod 344 to rotate. The seat 351 is threaded, so it can drive the adjustment seat 351 to move upward until the vertical plate connecting shaft 353 rotates and enters the upper front column groove 2113 and the rear column groove 2213 upwards, while the lateral sliding shaft 311 moves to the front. In the front vertical panel positioning groove 1113 and the rear vertical panel positioning groove 1123, the operation is stopped, that is, the upward adjustment of the angle is realized. It should be noted that, in the present invention, the front vertical plate 31 and the rear vertical plate 32 are rotatably assembled with the vertical plate connecting shaft 353, and the vertical plate connecting shaft 353 is rotatably assembled with the adjustment seat 351, thereby ensuring that the vertical plate connecting shaft 353 During the rotation process, it can smoothly enter into the upper front column groove 2113 and the rear column groove 2213 to ensure the reliability of the angle adjustment; when the angle of the running belt 6 needs to be lowered, pull the drop handle 352 to make the vertical plate connecting shaft 353 Exit the front column groove 2113 and the rear column groove 2213 above, and the motor reverses to drive the adjustment seat 351 to move downward until the vertical plate connecting shaft 353 enters the front column groove 2113 and the rear column groove 2213 below, Push the lowering handle 352 backward, and at the same time, the lateral sliding shaft 311 enters the rear front vertical panel positioning groove 1113 and the rear vertical panel positioning groove 1123, and stops the operation, that is, the angle is adjusted downward.

In an embodiment of the present invention, the buffer structure includes a buffer frame fixing rod 371, a buffer bracket 38, and a driven wheel assembly 39. In a non-running state, under the elastic force of the front buffer spring 3731 and the rear buffer spring 3732, the buffer frame fixing rod 371 The distance between the buffer bracket 38 is relatively large, and the front fixed sleeve 3711 and the rear fixed sleeve 3712 are slidingly matched with the front sliding cylinder 3811 and the rear sliding cylinder 3812 respectively. Tighten the running belt 6, so the driven wheel assembly 39 moves to the left due to the tightening of the running belt 6 during people's running, and the front fixed sleeve 3711 and the rear fixed sleeve 3712 are opposite to the front sliding cylinder 3811 and the rear sliding cylinder 3812 During the sliding process, the front buffer spring 3731 and the rear buffer spring 3732 are compressed to achieve buffering, thereby generating a buffering force on the human body and improving user comfort.

Further, as shown in the figure, the manipulating mechanism 4 includes a manipulating mechanism body 411 and a front connecting rod 412 and a rear connecting rod 413 respectively arranged on the front bottom and rear bottom of the manipulating mechanism body 411, the front connecting rod 412 and the rear connecting rod 413 both include an inclined section connected to the operating mechanism body and a horizontal section extending horizontally along the bottom end of the inclined section.

Preferably, a front fixing sleeve 212 and a rear fixing sleeve 222 are respectively provided at the tops of the front column 21 and the rear column 22, and both the front fixing sleeve 212 and the rear fixing sleeve 222 are provided with There are compression bolts, and the front fixing sleeve 212 and the rear fixing sleeve 222 are respectively assembled with the inclined sections of the front connecting rod 412 and the rear connecting rod 413 .

In the embodiment of the present invention, the inclined sections of the front connecting rod 412 and the rear connecting rod 413 are respectively fixed in the front fixing sleeve 212 and the rear fixing sleeve 222, and can slide inside it to realize the adjustment of its height. Adjust the compression bolts for fixing to meet the needs of different groups of people.

Further, as shown in the figure, the base connection plate includes a first connection plate 113 arranged on the left side of the front base riser 111 and the rear base riser 112 and a first connection plate 113 arranged on the front base riser 112 111 and the second connecting plate 114 on the right side of the rear base vertical plate 112, the length of the first connecting plate 113 is greater than the length of the second connecting plate 114, the first connecting plate 113 and the second connecting plate 113 The plates 114 are all provided with lightening holes.

Thus, while satisfying the strength of the base 1, the length of the first connecting plate 113 is set to be greater than the length of the second connecting plate 114, which can meet the force requirements. Lightening holes are provided on the top to reduce the overall weight of the mechanism.

The above descriptions are only illustrative specific implementations of the present invention, and are not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention shall fall within the protection scope of the present invention.

Claims (4)

1. A treadmill with a buffer structure, characterized in that it includes a base (1), a front column (21), a rear column (22), a running mechanism (3), an operating mechanism (4), a cover ( 5) and a running belt (6), the base (1) includes a front base riser (111), a rear base riser (112) and a front base riser (111) connected to the rear base The base connecting plate of the vertical plate (112), the left ends of the front base vertical plate (111) and the rear base vertical plate (112) are respectively provided with a front vertical plate threaded hole (1111) and a rear vertical plate threaded hole ( 1121), the right ends of the front base riser (111) and the rear base riser (112) are respectively provided with a front riser positioning chute (1112) and a rear riser positioning chute (1122), the front The vertical panel positioning chute (1112) and the rear vertical panel positioning chute (1122) are respectively provided with a plurality of front vertical panel positioning grooves (1113) and rear vertical panel positioning grooves (1123), and the front column (21 ) and the lower end of the rear column (22) are respectively provided with a front column threaded hole (2111) and a rear column threaded hole (2211) corresponding to the front panel threaded hole (1111) and the rear panel threaded hole (1121) ), to respectively fix the front column (21) and the front base vertical plate (111) and the rear column (22) and the rear base vertical plate (112) by bolts, on the front column (21) and on the A front pillar sliding groove (2112) is provided above the front pillar threaded hole (2111), and the front pillar sliding groove (2112) is provided with front pillar recesses corresponding to the number of the front pillar positioning grooves (1113). Slot (2113), a rear column sliding groove (2212) is provided on the rear column (22) and above the rear column threaded hole (2211), and the rear column sliding groove (2212) is provided with a The rear pillar grooves (2213) corresponding to the number of the rear vertical plate positioning grooves (1123) are on the front pillar (21) and the rear pillar (22) and are located in the front pillar sliding groove (2112) The front bearing shaft fixing hole (2114) and the rear bearing shaft fixing shaft (2214) are respectively provided above the sliding groove (2212) of the rear column, and the front column (21) and the rear column (22) An operating mechanism (4) is provided at the top, and the running mechanism (3) includes a front vertical board (31) and a rear vertical board (32) and a lower end connecting the front vertical board (31) and the rear vertical board (32) ) at the lower end of the vertical plate connecting plate (33), the left end of the front vertical plate (31) and the rear vertical plate (32) is rotatably equipped with a vertical plate connecting shaft (353), and the vertical plate connecting shaft (353) The middle position is rotatably equipped with an adjustment seat (351), and the adjustment seat (351) includes two arms assembled with the connecting shaft (353) of the vertical plate and a connecting arm connected to the top of the two arms. A drop handle (352) is provided on the left side of the lower end of each of the arms, and a threaded hole for the connecting arm is provided on the upper plane of the connecting arm to adjust with the angle. The joint threaded rod (344) is threaded, and the upper end of the angle adjustment threaded rod (344) is equipped with an angle adjustment motor (342), and the upper end of the angle adjustment motor (342) is provided with a bearing seat (341), and the bearing The seat (341) is equipped with a bearing shaft (34) extending in the front-rear direction, the front end and the rear end of the bearing shaft (34) respectively pass through the adjusting bolts and the front bearing shaft fixing holes (2114) on the front column (21) Assembled with the rear bearing shaft fixing shaft (2214) on the rear column (22), a drive motor ( 361), the front end of the driving motor (361) is provided with a driving gear (3611), and the right side of the driving gear (3611) is equipped with a driven gear (3621), and the driven gear (3621) passes through the driving roller The connecting shaft (3622) is fixedly assembled with the driving roller (362) at its rear end, and the connecting shaft (3622) of the driving roller passes through one end of the driven gear (3621) and is rotatably assembled with the front vertical plate (31), The driving roller connecting shaft (3622) passes through one end of the driving roller (362) and is rotatably assembled with the rear vertical board (32), and the right ends of the front vertical board (31) and the rear vertical board (32) The outer side is fixedly equipped with a lateral sliding shaft (311), and a front driven assembly is respectively arranged on the front vertical board (31) and the rear vertical board (32) and on the left side of the lateral sliding shaft (311) The sliding groove (3721) and the rear driven assembly sliding groove (3722), the driven wheel assembly (39) is slidably assembled in the front driven assembly sliding groove (3721) and the rear driven assembly sliding groove (3722) , the driven wheel assembly (39) includes a driven wheel main shaft (392) and a driven main wheel (391) interference fitted with the driven wheel main shaft (392), on the driven wheel main shaft (392) and located The front end and rear end of the driven main wheel (391) are respectively provided with a front bearing (3931) and a rear bearing (3932), on the driven wheel main shaft (392) and at the front end of the front bearing (3931) and the rear end of the rear bearing (3932) are respectively provided with a front driven wheel (3911) and a rear driven wheel (3912) splined with the driven wheel main shaft (392), and the driven wheel main shaft (392) The front end is slidably fitted with the front driven assembly sliding slot (3721), and the front end of the driven wheel main shaft (392) protrudes from the front driven assembly sliding slot (3721) and is fixed with the front fixing nut (3941) Assembly, the rear end of the driven wheel main shaft (392) is slidably fitted with the sliding groove of the rear driven assembly (3722) and the rear end of the driven wheel main shaft (392) protrudes from the sliding groove of the rear driven assembly ( 3722) is fixedly assembled with the rear fixing nut (3942), the left end of the driven wheel assembly (39) is provided with a buffer bracket (38), and the buffer bracket (38) includes The buffer bracket body (381), the front and rear ends of the right side of the buffer bracket body (381) are respectively provided with a front semicircular bracket (3821) and a For the rear semicircle support (3822), the front sliding cylinder (3811) and the rear sliding cylinder (3812) extending in the left and right directions are respectively arranged on the left side of the buffer support body (381) along the front and rear directions. Between the board (31) and the rear vertical board (32) and on the left side of the buffer bracket (38), there is a buffer frame fixing rod (371), and the right side of the buffer frame fixing rod (371) is A front fixing sleeve (3711) and a rear fixing sleeve (3712) extending along the left and right directions are respectively provided in the front and rear directions, the front fixing sleeve (3711) and the rear fixing sleeve (3712) are respectively connected with the front The sliding cylinder (3811) and the rear sliding cylinder (3812) are slidably assembled, and the front buffer spring (3731) and rear buffer spring (3731) are respectively set on the front fixing sleeve (3711) and the rear fixing sleeve (3712) The spring (3732), the driving roller (362) and the driven wheel assembly (39) are equipped with a running belt (6), and the front vertical board (31) and the rear vertical board (32) are equipped with covers (5), the cover (5) is provided with running belt avoidance holes (511). 2. The treadmill with a buffer structure according to claim 1, characterized in that: the operating mechanism (4) includes a operating mechanism body (411) and is respectively arranged at the front and bottom of the operating mechanism body (411) and The front connecting rod (412) and the rear connecting rod (413) at the bottom of the rear, the front connecting rod (412) and the rear connecting rod (413) both include an inclined section connected with the operating mechanism body and along the A horizontal segment that extends horizontally from the bottom of the sloped segment. 3. The treadmill with buffer structure according to claim 2, characterized in that: front fixing sleeves (212) and front fixing sleeves (212) and The rear fixing sleeve (222), the front fixing sleeve (212) and the rear fixing sleeve (222) are provided with compression bolts, the front fixing sleeve (212) and the rear fixing sleeve The barrel (222) is assembled with the inclined sections of the front connecting rod (412) and the rear connecting rod (413) respectively. 4. The treadmill with buffer structure according to claim 3, characterized in that: the base connecting plate includes a left side of the front base vertical plate (111) and the rear base vertical plate (112). The first connecting plate (113) on the side and the second connecting plate (114) on the right side of the front base vertical plate (111) and the rear base vertical plate (112), the first connecting plate (113 ) is longer than the length of the second connecting plate (114), and both the first connecting plate (113) and the second connecting plate (114) are provided with weight-reducing holes.