Pneumatic folding arm mounting structure of treadmill

Abstract

The utility model discloses a pneumatic folding arm mounting structure of a treadmill, which comprises two main frame side rods, a first upright post and a second upright post are connected to the outer side parts of the front ends of the two main frame side rods, and the bottom ends of the first upright post and the second upright post are connected with the outer side parts of the front ends of the two main frame side rods through first rotating components; the top ends of the first stand column and the second stand column are connected with an operation panel support through a second rotating assembly. 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 unfolding state of the first stand column and the second stand column is locked through the locking assembly, the first stand column and the second stand column can be easily lifted or put down by means of the effect of the gas spring assembly, and operation is more convenient.

Description

Technical Field

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

[0002] The treadmill includes a frame, a running belt and an armrest assembly are arranged on the frame, and a roller assembly is arranged at the bottom of the frame for carrying the treadmill. Such treadmills are relatively large in size. When used at home, existing treadmills usually have the armrest assembly as a foldable structure in order to reduce the placement space. The foldable structure of the existing treadmill armrest has the following defects: it has no cushioning function. When folded, due to the weight of the armrest, if the user has little strength, it cannot be smoothly folded or unfolded. Utility Model Content

[0003] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide a pneumatic folding arm mounting structure for a treadmill to solve the problems mentioned in the background technology.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] A pneumatic folding arm mounting structure for a treadmill includes two main frame side rods, a first column and a second column are connected to the front outer sides of the two main frame side rods, the bottom ends of the first column and the second column are connected to the front outer sides of the two main frame side rods via a first rotating assembly, and the top ends of the first column and the second column are connected to an operation panel bracket via a second rotating assembly;

[0006] 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 hingedly connected to the second column. The top end of the piston rod of the gas spring body is hingedly connected to the second column through a hinge seat. The gas spring assembly also includes a locking assembly, which locks the first column and the second column in the expanded state.

[0007] Preferably, a column mounting plate is fixedly connected to the outer side of the front end of the two main frame side rods, and the bottom ends of the first column and the second column are connected to the column mounting plate through a first rotating component.

[0008] Preferably, the first rotating assembly includes a column bottom connecting sleeve fixedly connected to the column mounting plate, the bottom ends of the first column and the second column are integrally formed with a bottom long shaft sleeve, a first mounting hole is formed in the bottom long shaft sleeve, a first mounting plate is formed in the first mounting hole, and also includes a bottom stud bolt, the first end of the bottom stud bolt is connected to the connecting shaft sleeve at the bottom end of the column, the second end passes through the first mounting hole, and is connected to a bottom cap through the first mounting plate, a first bearing is pressed between the inner wall of the first mounting hole and the outer wall of the bottom stud bolt, the first bearing allows the bottom long shaft sleeve to rotate relative to the bottom stud bolt, and the rotation is smoother, first bearing support rings are provided on both sides of the first bearing, a first flat washer is provided on the outer side of the first bearing support ring at the outer end, and the bottom cap abuts against the first flat washer.

[0009] Preferably, the second rotating component includes a short shaft sleeve integrally formed at the top of the first column and the second column, a second mounting hole is formed in the short shaft sleeve, a second mounting plate is formed in the second mounting hole, and also includes a short rotating shaft, a press-fit hole is provided on the operation panel bracket, and the short rotating shaft is press-fitted in the press-fit hole, and 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 cap, a second bearing is press-fitted between the inner wall of the second mounting hole and the outer wall of the first bolt, and the operation panel bracket is rotated relative to the short shaft sleeve through the second bearing, and the rotation is smoother, and second bearing support rings are provided on both sides of the second bearing, and the top cap abuts against the outer second bearing support ring 207.

[0010] Preferably, the hinged seat includes a seat body, the bottom end of the seat body is threadedly connected to the top end of the piston rod of the gas spring body, a hinge plate is provided on the second column, and the top end of the seat body is hingedly connected to the hinge plate.

[0011] Preferably, a downwardly protruding arc-shaped surface structure is formed on the lower end surface of the hinge plate, and the locking assembly includes a cam body arranged in the hinge seat, the cam body is located below the arc-shaped surface structure, and 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 to a control handle, and 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 plate on the second column cannot rotate, thereby achieving locking.

[0012] Preferably, 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 also includes a connecting bolt, which passes through the connecting bolt installation hole and the square shaft in sequence and is connected to the control handle.

[0013] Turn the control handle to drive the cam body to rotate through the square shaft.

[0014] In summary, the present invention has the following beneficial effects:

[0015] The present application provides a gas spring assembly between the first column and the second column. When folding or unfolding, the first column and the second column can be easily lifted or lowered with the help of the gas spring assembly, which makes the operation more convenient; and the first column and the second column can be locked in the unfolded state through the locking assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0017] Figure 2 It is a partial structural diagram of an embodiment of the utility model;

[0018] Figure 3 This is another partial structural diagram of an embodiment of the utility model;

[0019] Figure 4 It is a schematic cross-sectional structural diagram of the first rotating assembly of the utility model;

[0020] Figure 5 It is a schematic cross-sectional structural diagram of the second rotating assembly of the utility model;

[0021] Figure 6 This is a schematic diagram of the disassembly structure of the locking assembly of the utility model;

[0022] Figure 7 This is a schematic diagram of a partially disassembled structure of an embodiment of the utility model;

[0023] Figure 8 yes Figure 7 Schematic diagram of the enlarged structure of A. DETAILED DESCRIPTION

[0024] refer to Figures 1 to 8The present embodiment is a specific installation structure for installing the present application on a treadmill, comprising two main frame side rods 1, a running board 2 connected to the two main frame side rods via a buffer, 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) connected between the running belt driving main wheel and the driven wheel, the running board is placed between the upper and lower running belts, and further comprising a running belt driving main wheel driving member 4, the running belt driving main wheel driving member is arranged between the front ends of the two main frame side rods; the front outer sides of the two main frame side rods are connected to a first column 5 and a second column 6, the first column 5 and the second column 6 are connected to the front outer sides of the two main frame side rods, and the first column 5 and the second column 6 are connected to the front outer sides of the two main frame side rods. The bottom ends of the first and second columns are connected to the front and outer sides of the two main frame side rods via a first rotating assembly. The top ends of the first and second columns are connected to the operation panel bracket via a second rotating assembly. An operation panel 7 is provided on the operation panel bracket. A gas spring assembly 8 is provided between the first and second columns. The gas spring assembly includes a gas spring body 81, the bottom end of which is hingedly connected to the second column. The top end of the gas spring body's piston rod 82 is hingedly connected to the second column via a hinge seat. The gas spring assembly also includes a locking assembly that locks the first and second columns in their deployed state. The treadmill drive main wheel drive member, the treadmill drive main wheel, the driven wheel, and the treadmill belt mounting structure utilize existing technology and will not be described in detail here.

[0025] In this embodiment, a column mounting plate 100 is fixedly connected to the outer side of the front end of the two main frame side rods, and the bottom ends of the first column and the second column are connected to the column mounting plate through the first rotating component 9.

[0026] Specifically, the first rotating component includes a column bottom end connecting sleeve 101 fixedly connected to the column mounting plate 110, and the bottom ends of the first column and the second column are integrally formed with a bottom long sleeve 102, and a first mounting hole is formed in the bottom long sleeve, and a first mounting plate 103 is formed in the first mounting hole. It also includes a bottom stud 104, and the first end of the bottom stud is connected to the column bottom end connecting sleeve, and the second end passes through the first mounting hole and is connected to the bottom cap 105 through the first mounting plate. A first bearing 106 is pressed between the inner wall of the first mounting hole and the outer wall of the bottom stud, and the first bearing allows the bottom long sleeve to rotate relative to the bottom stud, and the rotation is smoother. First bearing support rings 107 are provided on both sides of the first bearing, and a first flat washer 108 is provided on the outer side of the first bearing support ring at the outer end, and the bottom cap abuts against the first flat washer. The second rotating component includes a short shaft sleeve 200 integrally formed on the top of the first column and the second column, a second mounting hole is formed in the short shaft sleeve, a second mounting plate 201 is formed in the second mounting hole, and also includes a short rotating shaft 202, a press-fit hole is provided on the operation panel bracket 203, and the short rotating shaft is press-fitted in the press-fit hole, and 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 to a top cap 205, and a second bearing 206 is press-fitted between the inner wall of the second mounting hole and the outer wall of the first bolt, and the operation panel bracket is rotated relative to the short shaft sleeve through the second bearing, and the rotation is smoother, and second bearing support rings 207 are provided on both sides of the second bearing, and the top cap abuts against the outer side of the second bearing support ring 207.

[0027] In addition, in this embodiment, the hinged seat includes a seat body, the bottom end of the seat body is threadedly connected to the top end of the piston rod of the gas spring body, a hinge plate 300 is provided on the second column, and the top end of the seat body is hingedly connected to the hinge plate.

[0028] Specifically, a downwardly protruding arc-shaped surface structure 301 is formed on the lower end surface of the hinge plate, and the locking assembly includes a cam body 302 arranged in the hinge seat. The cam body is located below the arc-shaped surface structure, and 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 to a control handle 303, and the control handle is rotatably connected to the hinge seat. Rotating the control handle drives the cam body to rotate. When 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 plate on the second column cannot rotate, thereby achieving locking. When connected, it includes a square shaft 304, a cam body press-fitted onto the square shaft, a square key formed on the control handle, and the square shaft press-fitted into the square key via the square key. A mounting cavity is formed in the base body, a control handle mounting hole 305 is provided on the front side wall of the base body, and a connecting bolt mounting hole 306 is provided on the rear side wall of the base body. The cam body is placed in the mounting cavity, and the control handle end is inserted into the control handle mounting hole. Connecting bolts 307 are also included, which pass through the connecting bolt mounting holes and the square shaft to connect to the control handle. Turning the control handle, in turn, drives the cam body to rotate via the square shaft.

[0029] The bottom end of the column mounting plate is connected to a pulley mounting bracket 400. Rollers 401 are installed at the outer corners of the pulley mounting bracket, and pads 402 are installed at the inner corners of the pulley mounting bracket. The front ends of the two main frame side rods are equipped with vertical wheel mounting plates 403. These vertical wheel mounting plates are equipped with two vertical wheel mounting brackets 404, which are each equipped with vertical wheels 405. When the treadmill is erected, the two vertical wheels cooperate with the rollers to facilitate transportation.

[0030] The buffer member includes a plurality of buffer seats 500 arranged on the inner side surfaces 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, and a third fixing hole 504 is provided 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. The buffer seat includes a seat body 505, and 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, and a first connecting portion 508 is formed on both sides of the buffer cavity. The first fixing hole is provided on the first fixing hole. On the connecting portion, the buffer block includes a block body 509, the bottom of which protrudes downward to form a protrusion 510. When connected, the protrusion is embedded in the buffer cavity. The block body is provided with a second fixing hole at both ends, which cooperates with the first fixing hole. The first fixing hole extends downward from the connecting seat into the seat body. The bottom end of the connecting rod is threaded into the first fixing hole. The top of the connecting rod is provided with a rib 511. A stop surface is formed in the third fixing hole, and the rib of the connecting rod abuts against the stop surface. Guide plates 512 are provided at the front and rear ends of the inner side surfaces of the two main frame side rods. The guide plates are provided with guide holes. The running board is provided with a guide rod (not shown) and is placed in the guide hole. The provision of the buffer block allows the running board to play a buffering role during the stepping process, improving the user's comfort. In addition, the provision of the guide plates and guide rods makes the running board installation structure more stable and less likely to deviate during exercise.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic folding arm mounting structure for a treadmill, characterized by: The cam is connected to the front end of the two main frame side rods, and the bottom ends of the first column and the second column are connected to the front end of the two main frame side rods through a first rotating assembly, and the top ends of the first column and the second column are connected to the operation panel bracket through a second rotating assembly; a gas spring assembly is arranged between the first column and the second column, and the gas spring assembly includes a gas spring body, the bottom end of the gas spring body is hingedly connected to the second column, and the top end of the piston rod of the gas spring body is hingedly connected to the second column through a hinge seat, and also includes a locking assembly, which locks the first column and the second column in the expanded state through the locking assembly.

2. The pneumatic folding arm mounting structure of a treadmill according to claim 1, characterized in that: The front end outer sides of the two main frame side rods are fixedly connected with column mounting plates, and the bottom ends of the first column and the second column are connected to the column mounting plates through a first rotating assembly.

3. The pneumatic folding arm mounting structure of a treadmill according to claim 1, characterized in that: The first rotation assembly includes a column bottom connecting sleeve fixedly connected to the column mounting plate, the bottom ends of the first column and the second column are integrally formed with a bottom long sleeve, a first mounting hole is formed in the bottom long sleeve, a first mounting plate is formed in the first mounting hole, and also includes a bottom stud bolt, the first end of the bottom stud bolt is connected to the connecting sleeve at the bottom end of the column, the second end passes through the first mounting hole, and is connected to a bottom cap through the first mounting plate, a first bearing is pressed between the inner wall of the first mounting hole and the outer wall of the bottom stud bolt, the first bearing allows the bottom long sleeve to rotate relative to the bottom stud bolt, and the rotation is smoother, first bearing support rings are provided on both sides of the first bearing, and a first flat washer is provided on the outer side of the first bearing support ring at the outer end, and the bottom cap is against the first flat washer.

4. The pneumatic folding arm mounting structure for a treadmill according to claim 1, characterized in that: The second rotating assembly includes a short shaft sleeve integrally formed at the top of the first column and the second column, a second mounting hole is formed in the short shaft sleeve, a second mounting plate is formed in the second mounting hole, and also includes a short rotating shaft, a press-fit hole is provided on the operation panel bracket, and the short rotating shaft is press-fitted in the press-fit hole, and 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 to a top cap, a second bearing is press-fitted between the inner wall of the second mounting hole and the outer wall of the first bolt, and the operation panel bracket is rotated relative to the short shaft sleeve through the second bearing, and the rotation is smoother, and second bearing support rings are provided on both sides of the second bearing, and the top cap abuts against the outer second bearing support ring.

5. The pneumatic folding arm mounting structure for a treadmill according to claim 1, characterized in that: The hinged seat comprises a seat body, the bottom end of which is threadedly connected to the top end of the piston rod of the gas spring body; a hinge piece is provided on the second column, and the top end of the seat body is hingedly connected to the hinge piece.

6. The pneumatic folding arm mounting structure for a treadmill according to claim 1, characterized in that: A downwardly protruding arc-shaped surface structure is formed on the lower end surface of the hinge plate. The locking assembly includes a cam body arranged 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 to a control handle. The control handle is rotatably connected to the hinge seat. Rotating the control handle drives the cam body to rotate. When 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 plate on the second column cannot rotate, thereby achieving locking.

7. The pneumatic folding arm mounting structure for a treadmill 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, 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, and the control handle end is inserted into the control handle installation hole. It also includes a connecting bolt, which passes through the connecting bolt installation hole and the square shaft in sequence and is connected to the control handle.

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