Treadmill with pneumatic folding arm structure

Abstract

The utility model discloses a treadmill with a pneumatic folding arm structure, which comprises two main frame side rods, and the outer side parts of the front ends of the two main frame side rods are both connected with a first upright post and a second upright post; a gas spring assembly is arranged between the first stand column and the second stand column and comprises a gas spring body, the bottom end of the gas spring body is hinged to the second stand column, and the top end of a piston rod of the gas spring is hinged to the second stand column through a hinge seat. The first stand column and the second stand column are locked in the unfolded state through the locking assembly; the air spring assembly is arranged between the first stand column and the second stand column, the first stand column and the second stand column can be easily lifted or put down through the effect of the air spring assembly during folding or unfolding, and operation is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of treadmills, and particularly relates to a treadmill with a pneumatic folding arm structure. Background Art

[0002] A treadmill includes a frame, a running belt and a handrail assembly are arranged on the frame, and a roller assembly is arranged at the bottom of the frame for carrying the treadmill. Such a treadmill has a large volume. When used at home, in order to reduce the placement space, the existing treadmill usually sets the handrail assembly as a foldable structure. The defect of the foldable structure of the existing treadmill handrail is that there is no buffering function. When folding, due to the certain weight of the handrail, if the user has little strength, it is impossible to complete the folding or opening smoothly. In addition, when the treadmill is not used for a long time, the running platform can be erected to reduce the floor area. When the running platform of the existing treadmill is erected, the roller assembly at the bottom of the frame cannot be used, resulting in difficult handling. Summary of the Utility Model

[0003] Aiming at the problems mentioned in the background art, the purpose of the utility model is to provide a treadmill with a pneumatic folding arm structure to solve the problems mentioned in the above background art.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions:

[0005] A treadmill with a pneumatic folding arm structure includes two main frame side rods, a running board is connected to the two main frame side rods through a buffer member, and also includes a running belt driving main wheel and a driven wheel arranged on the two main frame side rods. A running belt is connected between the running belt driving main wheel and the driven wheel. The running board is placed between the upper and lower layers of the running belt. It also includes a running belt driving main wheel driving member, and the running belt driving main wheel driving member is arranged between the front ends of the two main frame side rods; its characteristics are:

[0006] A first column and a second column are respectively connected to the outer sides of the front ends of the two main frame side rods. The bottom ends of the first column and the second column are connected to the outer sides of the front ends of the two main frame side rods through a first rotating assembly. The top ends of the first column and the second column are connected to an operation panel bracket through a second rotating assembly; an operation panel is arranged on the operation panel bracket.

[0007] A gas spring assembly is arranged between the first column and the second column. The gas spring assembly includes a gas spring body. The bottom end of the gas spring body is hinged to the second column, and the top end of the gas spring piston rod is hinged to the second column through a hinge seat. It also includes a locking assembly, and the locking assembly locks the unfolded state of the first column and the second column.

[0008] Among them, the installation structures of the running belt driving main wheel driving member, the running belt driving main wheel, the driven wheel, and the running belt adopt the prior art and will not be elaborated here.

[0009] Preferably, column mounting plates are fixedly connected to the outer sides of the front ends of the side rods of the two main frames. The bottoms of the first column and the second column are connected to the column mounting plates through a first rotating assembly.

[0010] Preferably, the first rotating assembly includes a column bottom connecting bushing fixedly connected to the column mounting plate. Bottom long bushings are integrally formed at the bottoms of the first column and the second column. A through first mounting hole is formed in the bottom long bushing. A first mounting plate is formed in the first mounting hole. It also includes a bottom double-headed bolt. The first end of the bottom double-headed bolt is connected to the column bottom connecting bushing. The second end penetrates into the first mounting hole and passes through the first mounting plate and is connected with a bottom nylon cap. A first bearing is press-fitted between the inner wall of the first mounting hole and the outer wall of the bottom double-headed bolt. Through the first bearing, the bottom long bushing rotates relative to the bottom double-headed bolt and rotates more smoothly. First bearing support rings are arranged on both sides of the first bearing. A first flat washer is arranged on the outer side of the first bearing support ring at the outer end. The bottom nylon cap abuts against the first flat washer.

[0011] Preferably, the second rotating assembly includes short bushings integrally formed at the tops of the first column and the second column. A through second mounting hole is formed in the short bushing. A second mounting plate is formed in the second mounting hole. It also includes a short rotating shaft. A press-fitting hole is arranged on the operation panel bracket. The short rotating shaft is press-fitted into the press-fitting hole. It also includes a first bolt. The end of the first bolt passes through the short rotating shaft and the second mounting plate and is connected with a top nylon cap. A second bearing is press-fitted between the inner wall of the second mounting hole and the outer wall of the first bolt. Through the second bearing, the operation panel bracket rotates relative to the short bushing and rotates more smoothly. Second bearing support rings are arranged on both sides of the second bearing. The top nylon cap abuts against the outer second bearing support ring.

[0012] Preferably, the hinge seat includes a seat body. The bottom end of the seat body is threadedly connected to the top end of the gas spring piston rod. A hinge piece is arranged on the second column. The top end of the seat body is hingedly connected to the hinge piece.

[0013] Preferably, an arc-shaped surface structure protruding downward is formed on the lower end surface of the hinge piece. The locking assembly includes a cam body arranged in the hinge seat. The cam body is located below the arc-shaped surface structure. A rotating gap is formed between the upper surface of the cam body and the lower bottom surface of the arc-shaped surface structure. The cam body is connected with a control handle. The control handle is rotatably connected to the hinge seat. Rotating the control handle drives the cam body to rotate. In the locked state, the long side of the cam body is located below the arc-shaped surface structure, and the rotating gap becomes narrower. The hinge piece on the second column cannot rotate, realizing locking.

[0014] Preferably, it includes a square shaft, a cam body is press-fitted on the square shaft, a square key is formed on the control handle, the square shaft is press-fitted in the square key, an installation cavity is formed in the seat body, a control handle installation hole is provided on the front side wall of the seat body, and a connecting bolt installation hole is provided on the rear side wall of the seat body. The cam body is placed in the installation cavity, the end of the control handle penetrates into the control handle installation hole, and it further includes a connecting bolt, and the connecting bolt sequentially passes through the connecting bolt installation hole and the square shaft and is connected to the control handle.

[0015] Rotate the control handle, and then drive the cam body to rotate through the square shaft.

[0016] Preferably, a pulley mounting bracket is connected to the bottom end of the column mounting plate, rollers are provided at the outer two end corners of the pulley mounting bracket, and cushion blocks are provided at the inner two end corners of the pulley mounting bracket.

[0017] Preferably, a vertical wheel mounting plate is provided at the front end of the side rods of the two main frames, two vertical wheel mounting brackets are provided on the vertical wheel mounting plate, and vertical wheels are provided on the vertical wheel mounting brackets.

[0018] When the running platform is erected, the two vertical wheels cooperate with the rollers to realize the handling of the treadmill.

[0019] Preferably, the buffer member includes a plurality of buffer seats provided on the inner side surfaces of the side rods of the two main frames, buffer blocks are provided on the buffer seats, first fixing holes are provided on the buffer seats, second fixing holes are provided on the buffer blocks, third fixing holes are provided on the running board, the first fixing holes, the second fixing holes and the third fixing holes penetrate through, and the running board is connected to the buffer seats by passing a connecting rod through the third fixing hole, the second fixing hole and the first fixing hole for fixed connection.

[0020] Preferably, the buffer seat includes a seat body, a connecting seat is integrally formed on the seat body, the connecting seat is concave up and down to form a buffer cavity, first connecting portions are formed on both sides of the buffer cavity, and the first fixing holes are provided on the first connecting portions. The buffer block includes a block body, a convex block protrudes downward from the bottom of the block body, and when connecting, the convex block is embedded in the buffer cavity, and the second fixing holes for cooperating with the first fixing holes are provided at both ends of the block body.

[0021] Preferably, the first fixing hole extends downward from the connecting seat into the seat body.

[0022] Preferably, the bottom end of the connecting rod is threadedly connected in the first fixing hole.

[0023] Preferably, a stop edge is provided at the top of the connecting rod, a resisting surface is formed in the third fixing hole, and the stop edge of the connecting rod abuts against the resisting surface.

[0024] Preferably, guide plates are provided at the front and rear ends of the inner sides of the side rods of the two main frames. Guide holes are provided on the guide plates, and guide rods are provided on the running board, and the guide rods are placed in the guide holes.

[0025] The setting of the buffer block enables the running board to play a buffering role during the stepping process, improving the comfort of use for the user. In addition, in combination with the setting of the guide plate and the guide rod, the installation structure of the running board is more stable and not prone to deviation during the movement process.

[0026] In summary, the main beneficial effects of the present utility model are as follows:

[0027] In this application, a gas spring assembly is provided between the first upright column and the second upright column. When folding or unfolding, with the help of the gas spring assembly, the first upright column and the second upright column can be easily lifted or lowered, making the operation more convenient; and the unfolded state of the first upright column and the second upright column is locked by a locking assembly. In addition, vertical wheels are provided at the front ends of the side rods of the two main frames. When the running platform is erected, the two vertical wheels cooperate with the rollers to realize the handling of the treadmill; in addition, the running board and the side rod are connected by a buffer member, enabling the running board to play a buffering role during the stepping process, improving the comfort of use for the user. In addition, in combination with the setting of the guide plate and the guide rod, the installation structure of the running board is more stable and not prone to deviation during the movement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of the present utility model;

[0029] Figure 2 is a partial structural diagram of the present utility model;

[0030] Figure 3 is another partial structural diagram of the present utility model;

[0031] Figure 4 is a sectional structural diagram of the first rotating assembly of the present utility model;

[0032] Figure 5 is a sectional structural diagram of the second rotating assembly of the present utility model;

[0033] Figure 6 is a split structural diagram of the locking assembly of the present utility model;

[0034] Figure 7 is a partial split structural diagram of the present utility model;

[0035] Figure 8 is Figure 7 an enlarged structural diagram of A of DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] Reference Figures 1 to 8 In this embodiment, a treadmill with a pneumatic folding arm structure includes two main frame side rods 1. A running board 2 is connected to the two main frame side rods through buffer members. It further includes a running belt driving main wheel 3 and a driven wheel (not shown) arranged on the two main frame side rods. A running belt (not shown) is connected between the running belt driving main wheel and the driven wheel. The running board is placed between the upper and lower layers of the running belt. It also includes a running belt driving main wheel driving member 4, and the running belt driving main wheel driving member is arranged between the front ends of the two main frame side rods; on the outer sides of the front ends of the two main frame side rods, a first upright column 5 and a second upright column 6 are respectively connected. The bottom ends of the first upright column and the second upright column are connected to the outer sides of the front ends of the two main frame side rods through a first rotating assembly. The top ends of the first upright column and the second upright column are connected to an operation panel support through a second rotating assembly; an operation panel 7 is arranged on the operation panel support; an air spring assembly 8 is arranged between the first upright column and the second upright column. The air spring assembly includes an air spring body 81. The bottom end of the air spring body is hinged to the second upright column, and the top end of the air spring piston rod 82 is hinged to the second upright column through a hinge seat. It also includes a locking assembly, and the unfolding state of the first upright column and the second upright column is locked through the locking assembly. Among them, the installation structures of the running belt driving main wheel driving member, the running belt driving main wheel, the driven wheel, and the running belt adopt the prior art and will not be elaborated here.

[0037] In this embodiment, column mounting plates 100 are fixedly connected to the outer sides of the front ends of the two main frame side rods, and the bottom ends of the first upright column and the second upright column are connected to the column mounting plates through a first rotating assembly 9.

[0038] Specifically, the first rotating assembly includes a column bottom connecting bushing 101 fixedly connected to the column mounting plate 110. At the bottom of both the first column and the second column, a bottom long bushing 102 is integrally formed. A through first mounting hole is formed in the bottom long bushing, and a first mounting plate 103 is formed in the first mounting hole. It also includes a bottom double-headed bolt 104. The first end of the bottom double-headed bolt is connected to the column bottom connecting bushing, and the second end penetrates into the first mounting hole and passes through the first mounting plate and is connected with a bottom nylon cap 105. A first bearing 106 is press-fitted between the inner wall of the first mounting hole and the outer wall of the bottom double-headed bolt. Through the first bearing, the bottom long bushing rotates relative to the bottom double-headed bolt, and the rotation is smoother. First bearing support rings 107 are provided on both sides of the first bearing. A first flat washer 108 is provided on the outer side of the first bearing support ring at the outer end. The bottom nylon cap abuts against the first flat washer. The second rotating assembly includes a short bushing 200 integrally formed at the top of the first column and the second column. A through second mounting hole is formed in the short bushing, and a second mounting plate 201 is formed in the second mounting hole. It also includes a short rotating shaft 202. A press-fitting hole is provided on the operation panel bracket 203, and the short rotating shaft is press-fitted into the press-fitting hole. It also includes a first bolt 204. The end of the first bolt passes through the short rotating shaft and the second mounting plate and is connected with a top nylon cap 205. A second bearing 206 is press-fitted between the inner wall of the second mounting hole and the outer wall of the first bolt. Through the second bearing, the operation panel bracket rotates relative to the short bushing, and the rotation is smoother. Second bearing support rings 207 are provided on both sides of the second bearing. The top nylon cap abuts against the second bearing support ring 207 on the outer side.

[0039] In addition, in this embodiment, the hinge seat includes a seat body. The bottom end of the seat body is threadedly connected to the top end of the gas spring piston rod. A hinge piece 300 is provided on the second column, and the top end of the seat body is hingedly connected to the hinge piece.

[0040] Specifically, an arc-shaped surface structure 301 protruding downward is formed on the lower end surface of the hinge piece. The locking assembly includes a cam body 302 disposed in the hinge seat. The cam body is located below the arc-shaped surface structure. A rotation gap is formed between the upper surface of the cam body and the lower bottom surface of the arc-shaped surface structure. The cam body is connected with a control handle 303. The control handle is rotatably connected to the hinge seat. Rotating the control handle drives the cam body to rotate. In the locked state, the long side of the cam body is located below the arc-shaped surface structure, and the rotation gap becomes narrower. The hinge piece on the second column cannot rotate, achieving locking. During connection, it includes a square shaft 304. The cam body is press-fitted on the square shaft. A square key is formed on the control handle. The square shaft is press-fitted in the square key through the square key. An installation cavity is formed in the seat body. A control handle installation hole 305 is provided on the front side wall of the seat body, and a connection bolt installation hole 306 is provided on the rear side wall of the seat body. The cam body is placed in the installation cavity. The end of the control handle penetrates into the control handle installation hole. It further includes a connection bolt 307. The connection bolt sequentially passes through the connection bolt installation hole and the square shaft and is connected to the control handle. Rotating the control handle then drives the cam body to rotate through the square shaft.

[0041] A pulley mounting bracket 400 is connected to the bottom end of the column mounting plate. Rollers 401 are provided at both outer ends of the pulley mounting bracket, and pads 402 are provided at both inner ends of the pulley mounting bracket. Two vertical wheel mounting plates 403 are provided at the front ends of the side rods of the two main frames. Two vertical wheel mounting brackets 404 are provided on the vertical wheel mounting plates, and vertical wheels 405 are provided on the vertical wheel mounting brackets. When the running platform is erected, the two vertical wheels cooperate with the rollers to achieve the handling of the treadmill.

[0042] The buffer member includes a plurality of buffer seats 500 provided on the inner sides of the side rods of the two main frames. A buffer block 501 is provided on the buffer seat. A first fixing hole 502 is provided on the buffer seat. A second fixing hole 503 is provided on the buffer block. A third fixing hole 504 is provided on the running board. The first fixing hole, the second fixing hole and the third fixing hole penetrate through. By passing a connecting rod through the third fixing hole, the second fixing hole and the first fixing hole for fixed connection, the running board is connected to the buffer seat. The buffer seat includes a seat body 505. A connecting seat 506 is integrally formed on the seat body. The connecting seat is concave up and down to form a buffer cavity 507. First connecting portions 508 are formed on both sides of the buffer cavity. The first fixing hole is provided on the first connecting portion. The buffer block includes a block body 509. A convex block 510 protrudes downward from the bottom of the block body. During connection, the convex block is fitted into the buffer cavity. Second fixing holes that cooperate with the first fixing hole are provided at both ends of the block body. The first fixing hole extends downward from the connecting seat into the seat body. The bottom end of the connecting rod is threadedly connected in the first fixing hole. A stop edge 511 is provided at the top of the connecting rod. A resisting surface is formed in the third fixing hole. The stop edge of the connecting rod abuts against the resisting surface. Guide plates 512 are provided at the front and rear ends of the inner sides of the side rods of the two main frames. Guide holes are provided on the guide plates. A guide rod (not shown) is provided on the running board. The guide rod is placed in the guide hole. Through the arrangement of the buffer block, the running board plays a buffering role during the stepping process, improving the comfort of the user. In addition, with the cooperation of the guide plate and the guide rod, the installation structure of the running board is more stable and not prone to deviation during the movement process.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A treadmill with a pneumatic folding arm structure, comprising two side rods of the main frame. A running board is connected to the two side rods of the main frame through buffer members. It further includes a main driving wheel and a driven wheel for the running belt, which are arranged on the two side rods of the main frame. A running belt is connected between the main driving wheel and the driven wheel for the running belt. The running board is placed between the upper and lower layers of the running belt. It also includes a driving member for the main driving wheel of the running belt, and the driving member for the main driving wheel of the running belt is arranged between the front ends of the two side rods of the main frame; characterized in that: On the outer sides of the front ends of the two side rods of the main frame, a first upright column and a second upright column are respectively connected. The bottom ends of the first upright column and the second upright column are connected to the outer sides of the front ends of the two side rods of the main frame through a first rotating assembly. The top ends of the first upright column and the second upright column are connected to an operation panel bracket through a second rotating assembly; an operation panel is arranged on the operation panel bracket; An air spring assembly is arranged between the first upright column and the second upright column. The air spring assembly includes an air spring body. The bottom end of the air spring body is hinged to the second upright column, and the top end of the air spring piston rod is hinged to the second upright column through a hinge seat. It also includes a locking assembly, and the unfolding state of the first upright column and the second upright column is locked through the locking assembly.

2. The treadmill with a pneumatic folding arm structure according to claim 1, wherein: On the outer sides of the front ends of the two side rods of the main frame, column mounting plates are respectively fixedly connected. The bottom ends of the first upright column and the second upright column are connected to the column mounting plates through a first rotating assembly. The first rotating assembly includes a column bottom connecting shaft sleeve fixedly connected to the column mounting plate. The bottom ends of the first upright column and the second upright column are integrally formed with bottom long shaft sleeves. A through first mounting hole is formed in the bottom long shaft sleeve, and a first mounting plate is formed in the first mounting hole. It also includes a bottom double-headed bolt. The first end of the bottom double-headed bolt is connected to the column bottom connecting shaft sleeve, and the second end passes through the first mounting hole and passes through the first mounting plate and is connected with a bottom nylon cap. A first bearing is press-fitted between the inner wall of the first mounting hole and the outer wall of the bottom double-headed bolt. Through the first bearing, the bottom long shaft sleeve rotates relative to the bottom double-headed bolt, and the rotation is smoother. First bearing support rings are arranged on both sides of the first bearing. A first flat washer is arranged on the outer side of the first bearing support ring at the outer end. The bottom nylon cap abuts against the first flat washer.

3. The treadmill with a pneumatic folding arm structure according to claim 1, wherein: The second rotating assembly includes short shaft sleeves integrally formed at the top ends of the first upright column and the second upright column. A through second mounting hole is formed in the short shaft sleeve, and a second mounting plate is formed in the second mounting hole. It also includes a short rotating shaft. A press-fitting hole is arranged on the operation panel bracket. The short rotating shaft is press-fitted in the press-fitting hole. It also includes a first bolt. The end of the first bolt passes through the short rotating shaft and the second mounting plate and is connected with a top nylon cap. A second bearing is press-fitted between the inner wall of the second mounting hole and the outer wall of the first bolt. Through the second bearing, the operation panel bracket rotates relative to the short shaft sleeve, and the rotation is smoother. Second bearing support rings are arranged on both sides of the second bearing. The top nylon cap abuts against the second bearing support ring on the outer side.

4. A treadmill with a pneumatic folding arm structure according to claim 1, characterized in that: The articulated seat includes a seat body, the bottom end of the seat body is threadedly connected to the top end of the gas spring piston rod, a hinge plate is arranged on the second column, the top end of the seat body is hingedly connected to the hinge plate, a downwardly protruding arc surface structure is formed on the lower end surface of the hinge plate, the locking assembly includes a cam body arranged in the articulated seat, the cam body is located below the arc surface structure, a rotation gap is formed between the upper surface of the cam body and the lower bottom surface of the arc surface structure, the cam body is connected to a control handle, the control handle is rotatably connected to the articulated seat, and the cam body is driven to rotate by rotating the control handle. When in the locked state, the long side of the cam body is located below the arc surface structure, and the rotation gap becomes narrower; the hinge plate on the second column cannot rotate, thereby achieving locking.

5. The treadmill with a pneumatic folding arm structure according to claim 1, characterized in that: It includes a square shaft, a cam body is pressed onto the square shaft, a square key is formed on the control handle, the square shaft is pressed into the square key through the square key, an installation cavity is formed in the seat body, a control handle installation hole is provided on the front side wall of the seat body, a connecting bolt installation hole is provided on the rear side wall of the seat body, the cam body is placed in the installation cavity, the control handle end is inserted into the control handle installation hole, and it also includes a connecting bolt, which passes through the connecting bolt installation hole and the square shaft in sequence to be connected to the control handle.

6. The treadmill with a pneumatic folding arm structure according to claim 1, wherein: A pulley mounting frame is connected to the bottom end of the column mounting plate, rollers are arranged on the two end corners of the outer side of the pulley mounting frame, pads are arranged on the two end corners of the inner side of the pulley mounting frame, and a vertical wheel mounting plate is arranged on the front end of the side rods of the two main frames, two vertical wheel mounting frames are arranged on the vertical wheel mounting plate, and vertical wheels are arranged on the vertical wheel mounting frames.

7. A treadmill with a pneumatic folding arm structure according to claim 1, wherein: The buffer component includes a plurality of buffer seats arranged on the inner sides of the side rods of the two main frames, a buffer block is arranged on the buffer seat, a first fixing hole is arranged on the buffer seat, a second fixing hole is arranged on the buffer block, and a third fixing hole is arranged on the running board. The first fixing hole, the second fixing hole and the third fixing hole are penetrated, and the running board is connected to the buffer seat by passing a connecting rod through the third fixing hole, the second fixing hole and the first fixing hole for fixed connection.

8. The treadmill with a pneumatic folding arm structure according to claim 7, characterized in that: The buffer seat includes a seat body, on which a connecting seat is integrally formed, the connecting seat is concave up and down to form a buffer cavity, first connecting parts are formed on both sides of the buffer cavity, and a first fixing hole is arranged on the first connecting part. The buffer block includes a block body, and the bottom of the block body protrudes downward to form a convex block. When connected, the convex block is embedded in the buffer cavity, and the second fixing holes that cooperate with the first fixing holes are arranged on both ends of the block body.

9. The treadmill with a pneumatic folding arm structure according to claim 8, wherein: Guide plates are arranged on the front and rear ends of the inner sides of the side rods of the two main frames, guide holes are arranged on the guide plates, and guide rods are arranged on the running boards, and the guide rods are placed in the guide holes.

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