Treadmill folding structure of treadmill

Abstract

A treadmill table folding structure of a treadmill comprises a first treadmill table and a second treadmill table which are hinged through a hinge assembly front and back. The hinge assembly comprises a first connecting piece, a middle arc-shaped piece and a second connecting piece. The first connecting piece and the second connecting piece are distributed left and right, and the opposite side faces are provided with arc-shaped grooves. The left side and the right side of the middle arc-shaped piece are assembled in the two arc-shaped grooves in a sliding mode respectively. The front end of the first connecting piece is connected with the first treadmill, and the rear end of the second connecting piece is connected with the second treadmill; the rear end of the middle arc-shaped piece can extend out of or retract into the arc-shaped groove of the first connecting piece in a reciprocating motion mode, and the front end is limited to the rear side of the arc-shaped groove of the first connecting piece. The front end of the middle arc-shaped piece can extend out of or retract into the arc-shaped groove of the second connecting piece in a reciprocating motion mode, and the rear end is limited to the front side of the arc-shaped groove of the second connecting piece. Therefore, the second treadmill body and the first treadmill body are connected through the three-section type connecting structure of the hinge assembly, the arc-shaped rotating and folding actions are achieved, use is convenient, and the size of the treadmill can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of body -building apparatus, in particular to a running track folding structure of treadmill. BACKGROUND

[0002] Treadmill is the most common body -building equipment, and is the simplest, most easily used one among family body -building apparatus, is the best choice of family body -building apparatus. But the running track of treadmill usually needs certain length, can carry out running movement, which leads to that the space occupied by treadmill is larger.

[0003] Therefore, in order to make the packing volume of treadmill smaller and convenient transportation, also in order to occupy small area when not using in family scene, convenient storage, the running track of part treadmill will be set to half folding structure. The foldable running track usually includes two portions, and the two portions are rotatably connected through hinge or through rotating shaft structure. But the existing hinge structure is usually poor in stability, and is inconvenient to use, for example, in the folding process, the part lifted is directly turned over and falls on the other part after rotating more than 90 DEG, causes product damage and produces certain security risk. SUMMARY

[0004] The utility model discloses a running track folding structure of treadmill can solve the problem that the above-mentioned treadmill occupies larger space and is inconvenient to fold, has the advantages of convenient to use, stable and reliable.

[0005] In order to achieve the above-mentioned purpose, the solution of the utility model is as follows:

[0006] A running track folding structure of treadmill, including first running track and second running track that are connected through hinge.

[0007] Hinge assembly is arranged between the first running track and the second running track.

[0008] The hinge assembly includes first connecting piece, intermediate arc-shaped piece and second connecting piece. The first connecting piece and the second connecting piece are distributed left and right and the opposite sides are provided with arc-shaped grooves. The intermediate arc-shaped piece is slidably assembled in the two arc-shaped grooves.

[0009] The front end of the first connecting piece is connected with the first running track, and the rear end of the second connecting piece is connected with the second running track. The rear end of the intermediate arc-shaped piece can reciprocatingly extend or retract into the arc-shaped groove of the first connecting piece, and the front end is limited to the rear side of the arc-shaped groove of the first connecting piece. The front end of the intermediate arc-shaped piece can reciprocatingly extend or retract into the arc-shaped groove of the second connecting piece, and the rear end is limited to the front side of the arc-shaped groove of the second connecting piece.

[0010] Further, the maximum rotation angle of the end of the front end or the rear end of the intermediate arc-shaped piece extending out of the arc-shaped slot is 90 degrees.

[0011] Further, the radially inner side and the radially outer side of the left side and the right side of the intermediate arc-shaped piece are respectively provided with radially extending arc-shaped limiting edges, and the arc-shaped slot is provided with corresponding arc-shaped limiting clamping grooves to limit the left and right sides of the intermediate arc-shaped piece in the arc-shaped slot.

[0012] Further, the side surface of the intermediate arc-shaped piece close to the first connecting piece is concavely provided with a concentric first arc-shaped recess, the first arc-shaped recess is close to the rear end of the intermediate arc-shaped piece, and the rear side of the arc-shaped slot of the first connecting piece is fixedly provided with a first limiting pin slidingly inserted into the first arc-shaped recess; the side surface of the intermediate arc-shaped piece close to the second connecting piece is concavely provided with a concentric second arc-shaped recess, the second arc-shaped recess is close to the front end of the intermediate arc-shaped piece, and the front side of the arc-shaped slot of the second connecting piece is fixedly provided with a second limiting pin slidingly inserted into the second arc-shaped recess; the first arc-shaped recess and the second arc-shaped recess are both quarter circular arc slots.

[0013] Further, the two ends of the first arc-shaped recess and the second arc-shaped recess are respectively communicated with lubricating oil tracks extending to the front end or the rear end of the intermediate arc-shaped piece.

[0014] Further, the side of the first connecting piece and the second connecting piece away from each other is respectively fixedly provided with a reinforcing plate.

[0015] Further, the first running track is provided with a first mounting seat, and the side of the first connecting piece away from the second connecting piece is locked to the first mounting seat; the second running track is provided with a second mounting seat, and the side of the first connecting piece away from the second connecting piece is locked to the first mounting seat.

[0016] Further, the left and right sides of the rear end of the first running track are respectively provided with first notches, and the first mounting seat is installed in the first notches; the left and right sides of the front end of the second running track are respectively provided with second notches, and the second mounting seat is installed in the second notches; the hinge assembly is two, and is respectively installed between the first mounting seat and the second mounting seat on the left and right sides.

[0017] Further, the first running track comprises a bottom first frame and a top first running plate, the first mounting seat is fixed to the first frame and the first running plate at the same time; the second running track comprises a bottom second frame and a top second running plate, the second mounting seat is fixed to the second frame and the second running plate at the same time; the rear end of the first frame is further provided with left and right extending first handles; the front and rear ends of the second frame are respectively provided with second handles and third handles.

[0018] Further, the first mounting seat is internally provided with a first mounting area communicating with the lower side and the rear side; the second mounting seat is internally provided with a second mounting area communicating with the lower side and the front side; the first connecting piece and the second connecting piece are closely arranged, and the intermediate arc-shaped piece is located between the first connecting piece and the second connecting piece; the front end of the hinge assembly is accommodated in the first mounting area, and the rear end of the hinge assembly is accommodated in the second mounting area.

[0019] Further, the running belt is further included, the running belt is circularly and rollably arranged on the first running platform and the second running platform, and the top surfaces of the first running platform and the second running platform are respectively provided with anti-skid PC pads.

[0020] After the above technical scheme is adopted, the hinge assembly is arranged, the first connecting piece, the intermediate arc-shaped piece and the second connecting piece are sequentially and arc-shapedly extended or contracted in a sliding fit relationship, the second running platform and the first running platform are connected through the three-section connecting structure, and the arc-shaped rotating folding action is realized.

[0021] In a first step, the rear end of the second running platform is lifted, the front end of the second running platform and the second connecting piece connected with the front end are rotated about the axis line of the intermediate arc-shaped piece, so that the second running platform is flipped forward along the arc of the intermediate arc-shaped piece, the first connecting piece and the intermediate arc-shaped piece of the hinge assembly can be used to support the second running platform, the stability of the flipping process is improved, and the second running platform is prevented from directly falling forward.

[0022] In a second step, the second running platform is continuously flipped forward and is rotated about the axis line of the intermediate arc-shaped piece, so that the second running platform is continuously flipped along the arc of the intermediate arc-shaped piece and is overlapped on the first running platform, so that the folding of the running platform is realized, the space occupied by the product is reduced, the product packaging cost is reduced, the folding process is simple and convenient, and the product is safe and reliable.

[0023] When the second running platform needs to be unfolded, the second running platform is lifted in the reverse direction, the operation is convenient and fast, and the product is safe and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective view of an embodiment of the utility model, mainly showing the top surface structure;

[0025] Figure 2 It is a partial structure exploded view of an embodiment of the utility model;

[0026] Figure 3 It is an exploded view of a hinge assembly of an embodiment of the utility model;

[0027] Figure 4 It is Figure 2 A-A sectional view of the utility model;

[0028] Figure 5 It is the perspective view of the embodiment of the utility model, mainly shows the bottom surface structure;

[0029] Figure 6 It is the folding process schematic view of the embodiment of the utility model;

[0030] Figure 7 It is the perspective view of the folding 90 degrees of the embodiment of the utility model;

[0031] Figure 8 It is the perspective view of the folding 180 degrees of the embodiment of the utility model;

[0032] Figure 9 It is the B-B section view of Figure 8

[0033] Figure 10 It is the exploded view of the embodiment of the utility model.

[0034] Label explanation: hinge assembly 10, first connecting piece 1, first limit pin 11, first pin hole 12, second connecting piece 2, second limit pin 21, second pin hole 22, intermediate arc-shaped piece 3, arc-shaped limit edge 31, first arc-shaped recess 32, second arc-shaped recess 33, arc-shaped groove 4, arc-shaped limit clamping groove 41, lubricating oil track 5, reinforcing plate 6, give way hole 61, screw 7, connecting screw 8;

[0035] First running track 20, first mounting seat 201, first installation area 2011, first opening 2012, first notch 202, first frame 203, first running plate 204, first handle 205;

[0036] Second running track 30, second mounting seat 301, second installation area 3011, second opening 3012, second notch 302, second frame 303, second running plate 304, second handle 305, third handle 306;

[0037] Running belt 40, anti-skid gasket 50. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantage of the embodiment of the application more clear, the technical scheme in the embodiment of the application will be described clearly and completely below, combined with the drawings in the embodiment of the application, obviously, the described embodiment is a part of the embodiment of the application, rather than all the embodiments. The components of the embodiment of the application described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] As Figures 1 to 9 ​The folding structure of the running track of the running machine comprises a first running track 20 and a second running track 30 which are connected by a hinge assembly 10.

[0040] In the embodiment, one hinge assembly 10 is arranged on each of the left and right sides of the running track, but one or three hinge assemblies can also be arranged.

[0041] In the embodiment, the hinge assembly 10 comprises a first connecting piece 1, an intermediate arc-shaped piece 3 and a second connecting piece 2. The first connecting piece 1 and the second connecting piece 2 are distributed on the left and right sides and are provided with arc-shaped grooves 4 on the opposite sides. The intermediate arc-shaped piece 3 is slidably arranged in the arc-shaped grooves 4. The hinge assembly 10 can make the first connecting piece 1, the intermediate arc-shaped piece 3 and the second connecting piece 2 extend or contract in an arc-shaped manner in sequence in a sliding fitting relationship, so that the second running track 30 and the first running track 20 can be arc-shaped rotated in a three-section structure.

[0042] Specifically, the front end of the first connecting piece 1 is connected with the first running track 20, and the rear end of the second connecting piece 2 is connected with the second running track 30. The rear end of the intermediate arc-shaped piece 3 can reciprocatingly extend into or be retracted from the arc-shaped groove 4 of the first connecting piece 1, and the front end is limited to the rear side of the arc-shaped groove 4 of the first connecting piece 1. The front end of the intermediate arc-shaped piece 3 can reciprocatingly extend into or be retracted from the arc-shaped groove 4 of the second connecting piece 2, and the rear end is limited to the front side of the arc-shaped groove 4 of the second connecting piece 2.

[0043] Therefore, when the unfolded running track needs to be folded (see Figure 1 At this time, the left and right sides of the intermediate arc-shaped piece 3 are located in the arc-shaped grooves 4 of the first connecting piece 1 and the second connecting piece 2), the first running track 20 can be folded towards the second running track 30, or the second running track 30 can be folded towards the first running track 20. The latter is taken as an example for illustration in the embodiment, and the specific steps are as follows:

[0044] Firstly, the rear end of the second running track 30 is lifted, and the front end of the second running track 30 and the second connecting piece 2 connected therewith are rotated about the axis of the intermediate arc-shaped piece 3. At this time, the first connecting piece 1 and the intermediate arc-shaped piece 3 are not moved, and the arc-shaped groove 4 of the second connecting piece 2 of the second running track 30 can be counterclockwise arcuately moved to the rear side relative to the intermediate arc-shaped piece 3 (see Figure 6 and Figure 7Finally, the rear end of the middle arc-shaped component 3 is limited to the front side of the arc-shaped groove 4 of the second connector 2, thereby achieving the effect of making the second running platform 30 rotate forward 90° along the arc of the middle arc-shaped component 3. At this time, the first connector 1 and the middle arc-shaped component 3 of the hinge assembly 10 can also be used to support the second running platform 30, improve the stability of the rotation process, and prevent the second running platform 30 from slipping out of your hand and falling forward directly.

[0045] The second step involves continuing to rotate the second running platform 30 forward, again rotating around the axis of the central arc-shaped component 3. At this point, the first connecting component 1 remains stationary, while the rear end of the central arc-shaped component 3 is limited by the second connecting component 2. Therefore, the second connecting component 2 can pull the rear end of the central arc-shaped component 3 to move in a counter-clockwise arc motion (see...). Figure 6 and Figure 8 Finally, the front end of the middle arc-shaped part 3 is limited to the rear side of the arc-shaped groove 4 of the first connecting part 1, so that the second running platform 30 continues to rotate 90° along the arc of the middle arc-shaped part 3, and then covers the top of the first running platform 20, thereby realizing the folding and closing of the running platform to reduce the space occupied by the product, reduce the product packaging cost, and the folding and closing process is simple, convenient, safe and reliable. The hinge assembly 10 has a stable structure and a good supporting effect.

[0046] When it needs to be unfolded, simply lift the second running platform 30 in the opposite direction. The operation is convenient, quick, safe and reliable.

[0047] In this embodiment, the maximum rotation angle of the end of the intermediate arc-shaped member 3 extending out of the arc-shaped groove 4 is 90 degrees. This makes the relative rotation angle between the intermediate arc-shaped member 3 and the first connecting member 1 0-90 degrees, and the relative rotation angle between the intermediate arc-shaped member 3 and the second connecting member 2 also 0-90 degrees.

[0048] like Figure 3 As shown, the radially extending arc-shaped limiting edge 31 can be provided on the radially inner and radially outer sides of the left and right sides of the intermediate arc-shaped component 3, so that the cross-section of the intermediate arc-shaped component 3 can be roughly in the shape of "I".

[0049] In this embodiment, the first connecting member 1 and the second connecting member 2 can also be arc-shaped. The arc-shaped groove 4 is provided with an arc-shaped limiting slot 41 corresponding to the arc-shaped limiting edge 31, so as to limit the middle arc-shaped member 3 to the left and right within the arc-shaped groove 4. This can improve the assembly efficiency of the various parts of the hinge assembly 10 and facilitate the assembly and installation of the product.

[0050] See Figure 3 , Figure 4 and Figure 9 In order to limit the intermediate arc-shaped part 3 within the arc-shaped groove 4, this embodiment adopts a limiting pin.

[0051] Specifically, the intermediate arc-shaped piece 3 can be concavely provided with a concentric first arc-shaped groove 32 on the side close to the first connecting piece 1, and the first arc-shaped groove 32 is close to the rear end of the intermediate arc-shaped piece 3. The rear side of the arc-shaped groove 4 of the first connecting piece 1 is fixedly provided with a first limiting pin 11 which is slidingly inserted into the first arc-shaped groove 32. Thus, when the rear end of the intermediate arc-shaped piece 3 extends out of the arc-shaped groove 4 of the first connecting piece 1, the first limiting pin 11 slides from the rear end to the front end of the first arc-shaped groove 32, and is finally limited at the front end of the first arc-shaped groove 32, thereby limiting the front end of the intermediate arc-shaped piece 3.

[0052] The first connecting piece 1 of the embodiment can be provided with a first pin hole 12 on the side away from the arc-shaped groove 4, and the first limiting pin 11 can be locked at the first pin hole 12 and extend into the arc-shaped groove 4, and then be slidingly inserted into the first arc-shaped groove 32.

[0053] Similarly, the intermediate arc-shaped piece 3 can be concavely provided with a concentric second arc-shaped groove 33 on the side close to the second connecting piece 2, and the second arc-shaped groove 33 is close to the front end of the intermediate arc-shaped piece 3. The front side of the arc-shaped groove 4 of the second connecting piece 2 is fixedly provided with a second limiting pin 21 which is slidingly inserted into the second arc-shaped groove 33. Thus, when the second connecting piece 2 rotates backward relative to the intermediate arc-shaped piece 3, it is equivalent to that the front end of the intermediate arc-shaped piece 3 extends out of the arc-shaped groove 4 of the second connecting piece 2, and the second limiting pin 21 slides from the front end to the rear end of the second arc-shaped groove 33, and is finally limited at the rear end of the second arc-shaped groove 33, thereby limiting the rear end of the intermediate arc-shaped piece 3. Meanwhile, when the second connecting piece 2 continues to be flipped, the second limiting pin 21 can be used to pull the intermediate arc-shaped piece 3 to rotate backward.

[0054] The second connecting piece 2 of the embodiment can be provided with a second pin hole 22 on the side away from the arc-shaped groove 4, and the second limiting pin 21 can be locked at the second pin hole 22 and extend into the arc-shaped groove 4, and then be slidingly inserted into the second arc-shaped groove 33.

[0055] In the embodiment, the first arc-shaped groove 32 and the second arc-shaped groove 33 are both quarter circular arc grooves.

[0056] In order to improve the sliding smoothness of each part of the hinge assembly 10 and prevent jamming, the first arc-shaped groove 32 and the second arc-shaped groove 33 of the embodiment are respectively communicated with lubricating oil tracks 5 which extend to the front end or the rear end of the intermediate arc-shaped piece 3. Thus, the lubricating oil can be supplemented.

[0057] To further enhance the structural strength of the hinge assembly 10, in this embodiment, reinforcing plates 6 are fixed to the sides of the first connector 1 and the second connector 2 that are far apart from each other. The reinforcing plates 6 can be locked and fixed to the first connector 1 or the second connector 2 by a number of screws 7; the reinforcing plates 6 can be provided with clearance holes 61 for the first limiting pin 11 and the second limiting pin 21 to pass through.

[0058] like Figure 2 As shown, in this embodiment, the first running platform 20 is provided with a first mounting base 201, and the side of the first connector 1 away from the second connector 2 is locked onto the first mounting base 201, which can be locked by a number of connecting screws 8; the second running platform 30 is provided with a second mounting base 301, and the side of the first connector 1 away from the second connector 2 is locked onto the first mounting base 201, which can also be locked by a number of connecting screws 8.

[0059] See Figure 1 In this embodiment, a hinge assembly 10 is provided on the left and right sides of the running platform, that is, a first notch 202 is provided on the left and right sides of the rear end of the first running platform 20, and the first mounting seat 201 is installed in the first notch 202; and a second notch 302 is provided on the left and right sides of the front end of the second running platform 30, and the second mounting seat 301 is installed in the second notch 302; the two hinge assemblies 10 are respectively installed between the first mounting seat 201 and the second mounting seat 301 on the left and right sides.

[0060] In this embodiment, the first mounting base 201 has a first mounting area 2011 connecting the lower and rear sides; the second mounting base 301 has a second mounting area 3011 connecting the lower and front sides; the first connecting member 1 and the second connecting member 2 are closely fitted together, and the intermediate arc-shaped member 3 is housed between them; the front end of the hinge assembly 10 is housed in the first mounting area 2011, and the rear end is housed in the second mounting area 3011. Thus, the hinge assembly 10 is protected by being housed within the first mounting base 201 and the second mounting base 301.

[0061] The top surfaces of the first mounting base 201 and the second mounting base 301 may be provided with a first opening 2012 and a second opening 3012, respectively. Each opening exposes the two ends of the hinge assembly 10 and the corresponding lubricating oil track 5, so as to facilitate the subsequent addition of lubricating oil.

[0062] like Figure 1 and Figure 5As shown, the first treadmill 20 can include a bottom first frame 203 and a top first running board 204, the first mounting seat 201 is fixed to the first frame 203 and the first running board 204 at the same time, which can be fixed by welding, etc.; the second treadmill 30 includes a bottom second frame 303 and a top second running board 304, the second mounting seat 301 is fixed to the second frame 303 and the second running board 304 at the same time, which can be fixed by welding, etc.; so as to improve the connection stability of the hinge assembly 10 and the first treadmill 20 and the second treadmill 30.

[0063] The rear end of the first frame 203 of the embodiment is further provided with a left and right extending first handle 205; the front and rear ends of the second frame 303 are respectively provided with a second handle 305 and a third handle 306. Each handle can assist the user to lift the first treadmill 20 or the second treadmill 30.

[0064] Further, as shown Figure 10 As shown, further comprising a running belt 40, the running belt 40 is installed on the first treadmill 20 and the second treadmill 30 in a circulating rolling manner, and the top surfaces of the first treadmill 20 and the second treadmill 30 are respectively provided with anti-skid pads 50, the anti-skid pads 50 are made of PC material, and are used for anti-skid of the running belt 40.

[0065] The above only is the preferred embodiment of the present application, the protection scope of the present application is not limited to the above-mentioned embodiment, any technical scheme under the idea of the present application belongs to the protection scope of the present application. It should be pointed out that, for ordinary skilled in the art, equivalent changes and modifications without departing from the principle of the present application, all should still belong to the protection scope of the present application.

[0066] In the description of the embodiments of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or is the orientation or positional relationship commonly used when the product of the application is placed, or is the orientation or positional relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0067] In addition, the present application provides various specific examples of processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

Claims

1. A folding structure of a treadmill of a running machine, characterized in that: it comprises a first treadmill and a second treadmill connected by a hinge assembly; the first and second treadmills are connected by the hinge assembly; the hinge assembly comprises a first connecting piece, an intermediate arc-shaped piece and a second connecting piece; the first and second connecting pieces are distributed left and right and each has an arc-shaped slot on the opposite side; the intermediate arc-shaped piece is slidably fitted into the two arc-shaped slots; the front end of the first connecting piece is connected to the first treadmill, and the rear end of the second connecting piece is connected to the second treadmill; the rear end of the intermediate arc-shaped piece can reciprocatingly extend out of or be retracted into the arc-shaped slot of the first connecting piece, and the front end is limited to the rear side of the arc-shaped slot of the first connecting piece; the front end of the intermediate arc-shaped piece can reciprocatingly extend out of or be retracted into the arc-shaped slot of the second connecting piece, and the rear end is limited to the front side of the arc-shaped slot of the second connecting piece; the maximum rotation angle of the end of the intermediate arc-shaped piece extending out of the arc-shaped slot is 90 degrees; the radially inner and outer sides of the left and right sides of the intermediate arc-shaped piece are respectively provided with radially extending arc-shaped limiting edges, and the arc-shaped slots are provided with arc-shaped limiting grooves corresponding to the arc-shaped limiting edges to limit the left and right sides of the intermediate arc-shaped piece in the arc-shaped slots; the side of the intermediate arc-shaped piece close to the first connecting piece is concavely provided with a concentric first arc-shaped recess close to the rear end of the intermediate arc-shaped piece, and the rear side of the arc-shaped slot of the first connecting piece is fixedly provided with a first limiting pin slidably inserted into the first arc-shaped recess; the side of the intermediate arc-shaped piece close to the second connecting piece is concavely provided with a concentric second arc-shaped recess close to the front end of the intermediate arc-shaped piece, and the front side of the arc-shaped slot of the second connecting piece is fixedly provided with a second limiting pin slidably inserted into the second arc-shaped recess; the first and second arc-shaped recesses are each a quarter of a circular arc slot; the first and second arc-shaped recesses are respectively connected to lubricating oil tracks extending to the front end or the rear end of the intermediate arc-shaped piece; the sides of the first and second connecting pieces away from each other are respectively fixedly provided with reinforcing plates; the first connecting piece is locked to a first mounting seat on the first treadmill, and the second connecting piece is locked to a second mounting seat on the second treadmill; the left and right sides of the rear end of the first treadmill are respectively provided with first notches, and the first notches are each provided with a first mounting seat; the left and right sides of the front end of the second treadmill are respectively provided with second notches, and the second notches are each provided with a second mounting seat; the hinge assembly is two, and is respectively installed between the first and second mounting seats on the left and right sides; the first treadmill comprises a bottom first frame and a top first running board, and the first mounting seat is fixed to the first frame and the first running board; the second treadmill comprises a bottom second frame and a top second running board, and the second mounting seat is fixed to the second frame and the second running board; the rear end of the first frame is further provided with first handles extending left and right; the front and rear ends of the second frame are respectively provided with second handles and third handles. ​ ​ ​ ​ 2. The folding structure of a treadmill deck of a treadmill according to claim 1, wherein: ​ 3. The folding structure of a treadmill deck of a treadmill as claimed in claim 1, wherein: ​ 4. The folding structure of a treadmill deck of a treadmill according to claim 1, wherein: ​ 5. The folding structure of a treadmill deck of a treadmill as claimed in claim 4, wherein: ​ 6. The folding structure of a treadmill deck of a treadmill as claimed in claim 1, wherein: ​ 7. The folding structure of a treadmill deck of a treadmill as claimed in claim 1, wherein: ​ 8. The folding structure of a treadmill deck of a treadmill as claimed in claim 7, wherein: ​ 9. The folding structure of a treadmill deck of a treadmill as claimed in claim 7, wherein: The first mounting seat is provided with a first mounting area communicating with the lower side and the rear side; the second mounting seat is provided with a second mounting area communicating with the lower side and the front side; the first connecting member and the second connecting member are closely arranged, and the intermediate arc-shaped member is located between the first connecting member and the second connecting member; the front end of the hinge assembly is accommodated in the first mounting area, and the rear end is accommodated in the second mounting area.

10. The folding structure of a treadmill deck of a treadmill as claimed in claim 1, wherein: The treadmill is provided with a running belt, and the running belt is installed on the first running platform and the second running platform and can be circularly rolled.

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