High-stability lifting treadmill

Abstract

The utility model discloses a high-stability lifting running machine. The front end of the treadmill frame body is fixedly provided with a positioning bracket; the driving motor is fixedly arranged at the front end of the treadmill frame body; the screw sleeve is rotationally arranged on the positioning bracket and is in transmission connection with the driving motor through a transmission assembly; one end of the screw rod is inserted into the screw sleeve and is in threaded connection with the screw sleeve; the lifting unit comprises an upper bracket, a first connecting rod, a second connecting rod and a lower bracket; the upper support is fixedly arranged on the treadmill frame body or the positioning support, and a first sliding groove is transversely formed in the upper support; a second sliding groove is transversely formed in the lower support. And the first connecting rod and the second connecting rod are rotationally connected with each other and are arranged in an X shape. Transmission structures such as the gear and the screw are used for driving the X-shaped lifting structure to ascend and descend, so that the head of the treadmill is lifted or lowered, and the treadmill is simple in structure, more stable and more reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of treadmills, in particular to a high-stability lifting treadmill. Background Art

[0002] Treadmills are fitness equipment commonly used in families and gyms. Moreover, they are one of the simplest types of home fitness equipment and are one of the best choices for home fitness equipment.

[0003] With the development of the industry, in order to simulate an ascending slope and increase the exercise difficulty, current treadmills on the market are beginning to be equipped with a lifting device to raise the front end of the treadmill according to user settings, enabling users to run as if they were climbing a slope, which significantly improves the fitness experience for some users with high fitness goals, such as the disclosed patent document CN220090363U.

[0004] Existing lifting treadmills usually rely on swing arms for swinging actions to lift the front end of the treadmill. This type of structure has poor lifting stability. Therefore, it is necessary to make further improvements. Summary of the Utility Model

[0005] The utility model aims at the deficiencies in the prior art and provides a high-stability lifting treadmill.

[0006] To solve the above technical problems, the utility model is solved by the following technical solutions:

[0007] A high-stability lifting treadmill includes

[0008] A running machine frame body, with a positioning bracket fixedly installed at its front end;

[0009] A driving motor, fixedly installed at the front end of the running machine frame body;

[0010] A screw sleeve, rotatably arranged on the positioning bracket and in transmission connection with the driving motor through a transmission component;

[0011] A screw rod, one end of which is inserted into the screw sleeve and threadedly connected to the screw sleeve; and

[0012] A lifting unit, which includes an upper bracket, a first connecting rod, a second connecting rod, and a lower bracket;

[0013] The upper bracket is fixedly installed on the running machine frame body or the positioning bracket, and a first sliding groove is transversely opened on the upper bracket;

[0014] A second sliding groove is transversely opened on the lower bracket;

[0015] The first link and the second link are rotatably connected to each other and arranged in an X shape. The upper end of the first link is slidably disposed at the first chute and connected to the other end of the screw rod, and the lower end is rotatably disposed on the lower bracket; the upper end of the second link is rotatably disposed on the upper bracket, and the lower end is slidably disposed at the second chute;

[0016] When the drive motor is started to drive the screw sleeve to rotate, the screw rod moves horizontally accordingly to cause the lifting unit to unfold and lift the front end of the treadmill.

[0017] In the above solution, preferably, the transmission component includes a first gear fixedly arranged at the output end of the drive motor and a second gear fixedly arranged on the screw sleeve, and the first gear is in transmission connection with the second gear.

[0018] In the above solution, preferably, both ends of the screw sleeve are open and hollow inside, and its inner wall has internal threads that are thread - fitted with the screw rod;

[0019] Both ends of the screw sleeve are respectively thread - connected to the corresponding screw rods;

[0020] Two lifting units are provided and are respectively arranged on the left and right sides of the screw sleeve.

[0021] In the above solution, preferably, the positioning bracket includes a first bracket and a second bracket fixedly arranged on the running machine frame. One end of the upper bracket of one of the lifting units is fixedly arranged on the running machine frame, and the other end is fixedly arranged on the first bracket; one end of the upper bracket of the other lifting unit is fixedly arranged on the running machine frame, and the other end is fixedly arranged on the second bracket.

[0022] In the above solution, preferably, a card slot adapted to the outer tube of the running machine frame is provided on the first bracket and / or the second bracket.

[0023] In the above solution, preferably, the positioning bracket further includes a positioning piece, one end of the positioning piece is fixedly arranged on the first bracket, and the other end is fixedly arranged on the second bracket.

[0024] In the above solution, preferably, the positioning bracket further includes a plurality of positioning blocks. The positioning blocks are fixedly arranged on the positioning piece, and through - holes are provided on the positioning blocks. The screw sleeve passes through the through - holes and is rotatably connected to the positioning blocks.

[0025] In the above solution, preferably, the positioning bracket further includes a positioning piece, and the positioning piece is fixedly arranged on the running machine frame;

[0026] The positioning bracket further includes a plurality of positioning blocks, which are fixedly arranged on the positioning piece. Through holes are formed in the positioning blocks, and the screw sleeve is arranged through the through holes and rotatably connected to the positioning blocks.

[0027] In the above solution, preferably, a first pin shaft is arranged at the upper end of the first connecting rod, and the end of the screw rod is rotatably connected to the first pin shaft;

[0028] Corresponding first sliding grooves are respectively formed on two side walls of the upper bracket corresponding to each other, and two ends of the first pin shaft are respectively arranged at the first sliding grooves;

[0029] A second pin shaft is arranged at the lower end of the second connecting rod, and corresponding second sliding grooves are respectively formed on two side walls of the lower bracket corresponding to each other, and two ends of the second pin shaft are respectively arranged at the second sliding grooves.

[0030] In the above solution, preferably, a plurality of bearings or rollers abutted against the corresponding bracket walls are respectively arranged on the first pin shaft and / or the second pin shaft.

[0031] The beneficial effects of the present utility model are as follows:

[0032] The present utility model adopts transmission structures such as gears and screw rods to drive the lifting of the X-shaped lifting structure, thereby lifting or lowering the head of the treadmill, and has a simple structure and is more stable and reliable. Description of the Drawings

[0033] Figure 1 It is a schematic diagram of the present utility model.

[0034] Figure 2 It is a schematic diagram of the driving structure of the present utility model.

[0035] Figure 3 It is a schematic diagram of the cooperation of the screw sleeve, screw rod and lifting unit of the present utility model.

[0036] Figure 4 It is an exploded state schematic diagram of the screw sleeve, screw rod and lifting unit of the present utility model.

[0037] Figure 5 It is a schematic diagram of the cooperation of the positioning bracket and the outer tube of the running machine frame of the present utility model.

[0038] Figure 6 It is a schematic diagram of the lifting state of the treadmill of the present utility model.

[0039] Figure 7 It is a schematic diagram of the non-lifting state of the treadmill of the present utility model. Detailed Embodiments

[0040] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments:

[0041] See Figures 1 - 7 , a high-stability lifting treadmill, comprising a running frame body 1, a driving motor 2, a screw sleeve 3, a screw rod 4 and a lifting unit 5.

[0042] The driving motor 2 is fixedly arranged at the front end of the running frame body 1. As Figure 1 shown, it can be arranged on one side of the front end of the running frame body 1, while the other motor for driving the running belt can be arranged on the other side.

[0043] A positioning bracket is fixedly arranged on the running frame body 1. The positioning bracket includes a first bracket 61, a second bracket 62, a positioning piece 63 and a plurality of positioning blocks 64. The first bracket 61 and the second bracket 62 are distributed at intervals left and right, with a certain distance left between them. As one implementation, the inner end of the first bracket 61 is connected to the outer shell of the driving motor 2 to further position the driving motor 2, and the output shaft of the driving motor 2 can pass through the first bracket 61 and extend out.

[0044] In this embodiment, the first bracket 61 and the second bracket 62 are respectively provided with clamping grooves 65 adapted to the outer tube 11 of the running frame body 1. The outer tube 11 of the running frame body 1 is clamped at the clamping grooves 65, and at the same time, the first bracket 61 and the second bracket 62 are fixedly arranged at the outer tube 11.

[0045] Both ends of the positioning piece 63 are respectively fixedly arranged on the first bracket 61 and the second bracket 62. The positioning block 64 is fixedly arranged on the positioning piece 63 or the running frame body 1, and a through hole is provided on the positioning block 64.

[0046] For the screw sleeve 3, it passes through the through hole of the positioning block 64 and is in transmission connection with the driving motor 2 through a transmission component. Among them, after the screw sleeve 3 passes through the through hole, a rotational fit relationship is formed between the screw sleeve 3 and the positioning block 64. When there are two positioning blocks 64, the screw sleeve 3 is arranged horizontally and passes through two corresponding through holes, and has a rotational fit relationship with the two positioning blocks 64 respectively. As an option, bearings can be further designed between the outer wall of the screw sleeve 3 and the through hole.

[0047] For the transmission component, in this embodiment, it includes a first gear 71 fixedly arranged at the output end of the driving motor 2 and a second gear 72 fixedly arranged on the screw sleeve 3. The first gear 71 and the second gear 72 are meshed with each other for transmission connection. As an option, the second gear 72 can be arranged at the gap between the first bracket 61 and the positioning block 64, and the two positioning blocks 64 are arranged between the first bracket 61 and the second bracket 62.

[0048] In this embodiment, the bushing 3 has openings at both ends and is hollow inside, belonging to the sleeve type. It has internal threads on its inner wall that are thread - mated with the screw 4. The two ends of the bushing 3 are respectively thread - connected to the corresponding screws 4. Each screw 4 is connected to the corresponding lifting unit 5. That is, two screws 4 and two lifting units 5 can be configured, distributed at the left and right ends of the head of the running machine frame 1, and driven by the same driving unit, with higher lifting stability.

[0049] For the lifting unit 5, in this embodiment, it includes an upper bracket 51, a first connecting rod 52, a second connecting rod 53, and a lower bracket 54. The first connecting rod 52 and the second connecting rod 53 are rotatably connected to each other and are arranged in an X - shape.

[0050] The upper bracket 51 is in a fixed form. One end of the upper bracket 51 of one lifting unit is fixedly arranged on the running machine frame 1, and the other end is fixedly arranged on the first bracket 61; one end of the upper bracket 51 of the other lifting unit is fixedly arranged on the running machine frame 1, and the other end is fixedly arranged on the second bracket 62.

[0051] As one implementation method, both the upper bracket 51 and the lower bracket 54 can be selected as U - shaped metal parts. Among them, the U - shaped opening of the upper bracket 51 faces downward, and the U - shaped opening of the lower bracket 54 faces upward, as Figure 2 shown.

[0052] Furthermore, corresponding first sliding grooves 511 are respectively horizontally opened on the two corresponding side walls of the upper bracket 51. The upper end of the first connecting rod 52 is provided with a first pin shaft 521. The two ends of the first pin shaft 521 are respectively inserted into the corresponding first sliding grooves 511 and can slide along the first sliding grooves 511.

[0053] As described above, the screw 4 is thread - connected to the bushing 3, that is, one end of the screw 4 is thread - connected to the bushing 3, and the other end is rotatably connected to the first pin shaft 521. For example, a hole is opened at this end of the screw 4, and the first pin shaft 521 is inserted into this hole so that the screw 4 and the first pin shaft 521 form a rotational connection relationship.

[0054] For the lower end of the first connecting rod 52, it is rotatably connected to the lower bracket 54. For example, a hole is opened at the right end of the lower bracket 54, and the pin shaft at the lower end of the first connecting rod 52 is inserted into this hole so that the two form a rotational connection relationship.

[0055] Furthermore, corresponding second sliding grooves 541 are respectively horizontally opened on the two corresponding side walls of the lower bracket 54. The lower end of the second connecting rod 53 is provided with a second pin shaft 531. The two ends of the second pin shaft 531 are respectively inserted into the corresponding second sliding grooves 541 and can slide along the second sliding grooves 541.

[0056] The upper end of the second link 53 is rotatably connected to the upper bracket 51. For example, a hole is formed at the right end of the upper bracket 51, and the pin shaft at the upper end of the second link 53 is inserted into the hole so that the two form a rotatable connection relationship.

[0057] To improve the smoothness of the movement of the lifting unit, in this embodiment, a number of bearings or rollers 8 are provided on the first pin shaft 521. The bearings or rollers 8 are arranged in the inner cavity of the upper bracket 51 and abut against the inner wall of the upper bracket 51, and can roll along the inner wall of the upper bracket 51; a number of bearings or rollers 8 are also provided on the second pin shaft 531. The bearings or rollers 8 are arranged in the inner cavity of the lower bracket 54 and abut against the inner wall of the lower bracket 54, and can roll along the inner wall of the lower bracket 54, as Figure 3 shown.

[0058] After the driving motor 2 is driven, the first gear 71 rotates, and the second gear 72 rotates accordingly, driving the screw sleeve 3 to rotate. Depending on the thread fit between the screw sleeve 3 and the screw rod 4, the screw rod 4 moves horizontally, pushing the upper end of the first link 52 to move horizontally along the first chute 511, thereby promoting the unfolding of the X-shaped structure. That is, after the screw rod 4 moves horizontally, the lifting structure unfolds, and the lower bracket 54 moves downward, thereby lifting the front end of the treadmill; and when it is necessary to lower the treadmill, the driving motor 2 can be reversely operated.

[0059] As an option, the first link includes two first connecting bars distributed left and right and a second connecting bar connecting the two first connecting bars into one body, and a movable slot is formed in the second connecting bar. The second link is inserted through the movable slot. At the same time, a pin shaft is inserted through the second link, and both ends of the pin shaft are respectively connected to the corresponding first connecting bar so that the first link and the second link form a rotational mating relationship, and such a designed structure can further improve the connection stability between the first link and the second link.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-stability lifting treadmill, characterized in that: including a running machine frame body, at the front end of which a positioning bracket is fixedly provided; a driving motor, which is fixedly arranged at the front end of the running machine frame body; a screw sleeve, which is rotatably arranged on the positioning bracket and is in transmission connection with the driving motor through a transmission assembly; a screw rod, one end of which is inserted into the screw sleeve and is in threaded connection with the screw sleeve; and a lifting unit, which includes an upper bracket, a first connecting rod, a second connecting rod and a lower bracket; the upper bracket is fixedly arranged on the running machine frame body or the positioning bracket, and a first sliding groove is transversely formed on the upper bracket; a second sliding groove is transversely formed on the lower bracket; the first connecting rod and the second connecting rod are rotatably connected to each other and are arranged in an X shape. The upper end of the first connecting rod is slidably arranged at the first sliding groove and is connected to the other end of the screw rod, and the lower end is rotatably arranged on the lower bracket; the upper end of the second connecting rod is rotatably arranged on the upper bracket, and the lower end is slidably arranged at the second sliding groove; when the driving motor is started to drive the screw sleeve to rotate, the screw rod moves horizontally accordingly to cause the lifting unit to unfold and lift the front end of the treadmill.

2. The high-stability lifting treadmill according to claim 1, wherein: The transmission assembly includes a first gear fixedly arranged at the output end of the driving motor and a second gear fixedly arranged on the screw sleeve, and the first gear is in transmission connection with the second gear.

3. A high-stability lifting treadmill according to claim 1 or 2, characterized in that: Both ends of the screw sleeve are open and the inside is hollow, and the inner wall thereof has an internal thread that is in threaded cooperation with the screw rod; Corresponding screw rods are respectively in threaded connection at both ends of the screw sleeve; Two lifting units are provided, and are respectively arranged on the left and right sides of the screw sleeve.

4. The high-stability lifting treadmill according to claim 3, wherein: The positioning bracket includes a first bracket and a second bracket fixedly arranged on the running machine frame body. One end of the upper bracket of one of the lifting units is fixedly arranged on the running machine frame body, and the other end is fixedly arranged on the first bracket; one end of the upper bracket of the other lifting unit is fixedly arranged on the running machine frame body, and the other end is fixedly arranged on the second bracket.

5. The high-stability lifting treadmill according to claim 4, wherein: A clamping groove adapted to the outer tube of the running machine frame body is formed on the first bracket and / or the second bracket.

6. The high-stability lifting treadmill according to claim 4, wherein: The positioning bracket further includes a positioning piece, one end of which is fixedly arranged on the first bracket and the other end of which is fixedly arranged on the second bracket.

7. The high-stability lifting treadmill according to claim 6, wherein: The positioning bracket further includes a plurality of positioning blocks, which are fixedly arranged on the positioning piece. A through hole is formed on the positioning block, and the screw sleeve is inserted through the through hole and is rotatably connected to the positioning block.

8. A high-stability lifting treadmill according to claim 4, characterized in that: The positioning bracket further includes a positioning piece, which is fixedly arranged on the running machine frame body; The positioning bracket further includes a plurality of positioning blocks, which are fixedly arranged on the positioning piece. A through hole is formed on the positioning block, and the screw sleeve is inserted through the through hole and is rotatably connected to the positioning block.

9. The high-stability lifting treadmill according to claim 1, wherein: A first pin shaft is arranged at the upper end of the first connecting rod, and the end of the screw rod is rotatably connected to the first pin shaft; Corresponding first sliding grooves are respectively formed on two opposite side walls of the upper bracket, and both ends of the first pin shaft are respectively arranged at the first sliding grooves; The lower end of the second connecting rod is provided with a second pin shaft. Corresponding second sliding grooves are respectively formed on two opposite side walls of the lower bracket, and two ends of the second pin shaft are respectively arranged at the second sliding grooves.

10. The high-stability lifting treadmill according to claim 9, characterized in that: A plurality of bearings or rollers abutting against the corresponding bracket walls are respectively arranged on the first pin shaft and / or the second pin shaft.

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