Folded undercarriage structure for a treadmill to increase the grade of the incline

Abstract

The utility model discloses a folding bottom frame structure for increasing lifting slope of running machine relates to running machine technical field. The utility model discloses a chassis frame, the upper part bolt connection of chassis frame left end has the adjusting strip, is provided with the angle frame in the lower part of chassis frame left end, the inboard wall of angle frame is fixed with the axle support, the end surface rotation of connecting frame is connected with lifting motor, and the rotating shaft end of lifting motor is connected with the progressive screw rod, and the end of progressive screw rod is spirally connected with progressive screw cylinder, and the position of both sides of angle frame is provided with the auxiliary strip, and the blocking strip of two groups of auxiliary strips between fixed is located the angle frame lower end position. The utility model discloses a lifting motor, progressive screw rod and progressive screw cylinder's cooperation use, to this control angle strip and auxiliary strip and rotate, to this will chassis frame lift, make lifting angle adjustment's range increase, to make the lifting angle of running track can satisfy more user's use, improve running machine's applicability.

Description

Technical Field

[0001] This utility model belongs to the field of treadmill technology, and in particular relates to a folding base frame structure for increasing the incline of a treadmill. Background Technology

[0002] As a core piece of fitness equipment in modern homes and gyms, one of the core functions of treadmills is to simulate different terrain conditions for outdoor running, especially incline. Incline training can significantly increase training intensity, burn more calories, exercise different muscle groups, and more realistically simulate the experience of mountain climbing or trail running. As a widely used indoor aerobic fitness equipment, the core function of treadmills is to simulate outdoor running or walking. To more closely resemble a realistic exercise experience, increase training intensity, and improve training results, incline adjustment has become a standard feature of modern mid-to-high-end treadmills. However, traditional treadmill chassis structures have a limited incline adjustment range, failing to meet diverse training needs and restricting users' adaptability to different incline levels. Furthermore, existing chassis structures struggle to significantly raise the chassis, resulting in insufficient maximum elevation angle and impacting the realism and intensity of incline training. To address these issues, we offer a folding chassis structure for increasing the incline of treadmills. Utility Model Content

[0003] The purpose of this invention is to provide a folding base frame structure for increasing the incline of a treadmill. By using a lifting motor, a progressive screw, and a progressive screw cylinder in conjunction, the angle bar and auxiliary bar are rotated to lift the base frame, thereby increasing the range of adjustment of the incline angle. This allows the incline angle of the running platform to meet the needs of more users and improves the applicability of the treadmill.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a folding base frame structure for increasing the incline of a treadmill, comprising a chassis frame; an adjusting strip is bolted to the upper part of the left end of the chassis frame, an angle frame is provided at the lower part of the left end of the chassis frame, a shaft frame is fixed to the inner side wall of the angle frame, a connecting frame located inside the chassis frame is bolted to the end face of the adjusting strip, a lifting motor is rotatably connected to the end face of the connecting frame, a progressive screw is connected to the shaft end of the lifting motor, a progressive screw cylinder is screwed to the end of the progressive screw, and the lower end face of the progressive screw cylinder is rotatably connected to the shaft frame, auxiliary strips are provided at both sides of the angle frame, and a stop strip located at the lower end of the angle frame is fixed between the two sets of auxiliary strips.

[0005] The present invention is further configured such that a mounting strip is bolted to the left part inside the chassis frame, and the right end of the angle frame is rotatably connected to the mounting strip.

[0006] The present invention is further configured such that a roller is rotatably connected to the left end face of the angle frame, and a limiting plate that connects to the upper end face of the auxiliary strip is fixed on both sides of the angle frame near the roller.

[0007] The present invention is further configured such that insertion holes are provided on both sides of the angle frame located directly below the limiting plate, and locking screws are fixed on both sides of the angle frame located to the right of the insertion holes.

[0008] The present invention is further configured such that each auxiliary strip is rotatably connected to a roller two at its left end, and an assembly hole is provided through the side wall of the auxiliary strip at the position corresponding to the insertion hole. A pin is provided on the side of the auxiliary strip that passes through the assembly hole and the inside of the insertion hole, and a rubber pad is provided on the surface wall of the roller two.

[0009] The present invention is further configured such that a through hole is provided on the side wall of the auxiliary strip at the position corresponding to the locking screw, the locking screw is inserted into the corresponding through hole, and a locking bolt is provided on the side of the auxiliary strip opposite to the angle bracket, which is spirally inserted into the locking screw.

[0010] This utility model has the following beneficial effects: This invention controls the operation of a lifting motor, which directly controls the rotation of the advancing screw. The advancing screw barrel is limited by the shaft frame, and thus the advancing screw controls the advancing screw barrel to extend. In turn, the advancing screw barrel pushes the angle frame to rotate downward along the mounting strip, and the angle frame drives the auxiliary strip to rotate downward synchronously. As a result, the angle frame and the auxiliary strip lift the chassis frame, thereby increasing the lifting angle of the chassis frame. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a diagram showing the working state of the auxiliary strip in this utility model.

[0014] Figure 3 This is an undeveloped view of the overall structure of this utility model.

[0015] Figure 4 This is a structural assembly diagram of the adjusting bar, angle bracket, and auxiliary bar in this utility model.

[0016] Figure 5This is an exploded view of the angle frame and auxiliary strip in this utility model.

[0017] The attached diagram lists the components represented by each number as follows: 1-Chassis frame, 101-Mounting strip, 2-Adjusting strip, 201-Connecting frame, 202-Lifting motor, 203-Progressive screw, 204-Progressive screw barrel, 3-Angle frame, 301-Shaft frame, 302-Roller one, 303-Limiting plate, 304-Locking screw barrel, 305-Insertion hole, 306-Pin, 307-Locking bolt, 4-Auxiliary strip, 401-Assembly hole, 402-Through hole, 403-Roller two, 5-Rubber pad. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1 Please see Figures 1 to 5 This utility model is a folding base frame structure for increasing the incline of a treadmill. Through the coordinated use of the lifting motor 202, the advancing screw 203 and the advancing screw cylinder 204, the angle bar and the auxiliary bar 4 are controlled to rotate, thereby lifting the base frame 1 and increasing the range of adjustment of the incline. This allows the incline of the running platform to meet the needs of more users and improves the applicability of the treadmill.

[0020] Specifically, the chassis frame 1 has an adjusting strip 2 bolted to its upper left end. An angle frame 3 is located at the lower left end of the chassis frame 1. An axle frame 301 is fixed to the inner wall of the angle frame 3. A connecting frame 201 located inside the chassis frame 1 is bolted to the end face of the adjusting strip 2. A lifting motor 202 is rotatably connected to the end face of the connecting frame 201. A advancing screw 203 is connected to the shaft end of the lifting motor 202. An advancing screw cylinder 204 is helically connected to the end of the advancing screw 203. The lower end face of the 204 is rotatably connected to the shaft frame 301. Auxiliary strips 4 are provided at both sides of the angle frame 3. A stop bar at the lower end of the angle frame 3 is fixed between the two sets of auxiliary strips 4. The left part of the chassis frame 1 is bolted to the mounting strip 101. The right end of the angle frame 3 is rotatably connected to the mounting strip 101. The left end face of the angle frame 3 is rotatably connected to the roller 302. The two side walls of the angle frame 3 near the roller 302 are fixed with limiting plates 303 that are connected to the upper end face of the auxiliary strips 4.

[0021] The operation process of this embodiment is as follows: With the above structure, by controlling the lifting motor 202 to work, the lifting motor 202 will directly control the rotation of the advancing screw 203, while the advancing screw 204 is limited by the shaft frame 301. Thus, the advancing screw 203 will control the advancing screw 204 to extend, and then the advancing screw 204 will push the angle frame 3 to rotate downward along the mounting strip 101. The angle frame 3 will drive the auxiliary strip 4 to rotate downward synchronously. Thus, the angle frame 3 and the auxiliary strip 4 will lift the chassis frame 1, thereby increasing the lifting angle of the chassis frame 1.

[0022] Example 2 Please see Figure 5 Based on Example 1, the use of pin 306 ensures the stability of the position of the auxiliary strip 4 after it is unfolded.

[0023] Specifically, the angle bracket 3 located directly below the limiting plate 303 has insertion holes 305 on both sides of its side walls. The angle bracket 3 located to the right of the insertion holes 305 has locking screws 304 fixed on both sides of its side walls. Each set of auxiliary strips 4 has a roller 403 rotatably connected to its left end. The side walls of the auxiliary strips 4 have mounting holes 401 through the insertion holes 305. The side of the auxiliary strips 4 has pins 306 that pass through the mounting holes 401 and the inside of the insertion holes 305. The surface of the rollers 403 is fitted with rubber pads 5. The side walls of the auxiliary strips 4 have through holes 402 through the locking screws 304. The locking screws 304 are inserted into the corresponding through holes 402. The side of the auxiliary strips 4 opposite to the angle bracket 3 has locking bolts 307 that are screwed into the locking screws 304.

[0024] The operation process of this embodiment is as follows: When using the auxiliary strip 4, control the rotation of the auxiliary strip 4 so that the auxiliary strip 4 rotates along the locking bolt 307, and control the auxiliary strip 4 to be in a straight line with the angle bracket 3, thereby unfolding the auxiliary strip 4. At this time, the mounting hole 401 on the auxiliary strip 4 will be consistent with the corresponding insertion hole 305. Therefore, the pin 306 is then passed through the inside of the mounting hole 401 and the insertion hole 305, thereby limiting the auxiliary strip 4 and ensuring the stability of the position of the auxiliary strip 4 after unfolding.

[0025] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A folding base frame structure for increasing the incline of a treadmill, comprising a chassis frame (1); characterized in that: An adjusting strip (2) is bolted to the upper part of the left end of the chassis frame (1). An angle frame (3) is provided at the lower part of the left end of the chassis frame (1). A shaft frame (301) is fixed to the inner side wall of the angle frame (3). A connecting frame (201) located inside the chassis frame (1) is bolted to the end face of the adjusting strip (2). A lifting motor (202) is rotatably connected to the end face of the connecting frame (201). A progressive screw (203) is connected to the shaft end of the lifting motor (202). A progressive screw cylinder (204) is spirally connected to the end of the progressive screw cylinder (203). The lower end face of the progressive screw cylinder (204) is rotatably connected to the shaft frame (301). An auxiliary strip (4) is provided at both sides of the angle frame (3). A stop bar located at the lower end of the angle frame (3) is fixed between the two sets of auxiliary strips (4).

2. The folding base frame structure for increasing the incline of a treadmill according to claim 1, characterized in that, The left part of the chassis frame (1) is bolted to the mounting strip (101), and the right end of the angle frame (3) is rotatably connected to the mounting strip (101).

3. The folding base frame structure for increasing the incline of a treadmill according to claim 1, characterized in that, The left end face of the angle frame (3) is rotatably connected to a roller (302), and the two side walls of the angle frame (3) near the roller (302) are fixed with a limiting plate (303) that is connected to the upper end face of the auxiliary strip (4).

4. The folding base frame structure for increasing the incline of a treadmill according to claim 1, characterized in that, An insertion hole (305) is provided on both sides of the angle bracket (3) located directly below the limiting plate (303), and a locking screw (304) is fixed on both sides of the angle bracket (3) located to the right of the insertion hole (305).

5. The folding base frame structure for increasing the incline of a treadmill according to claim 4, characterized in that, Each set of auxiliary strips (4) has a roller (403) rotatably connected to its left end. The side wall of the auxiliary strip (4) is provided with an assembly hole (401) at the position corresponding to the insertion hole (305). The side of the auxiliary strip (4) is provided with a pin (306) that passes through the assembly hole (401) and the inside of the insertion hole (305). The surface wall of the roller (403) is covered with a rubber pad (5).

6. The folding base frame structure for increasing the incline of a treadmill according to claim 4, characterized in that, A through hole (402) is provided on the side wall of the auxiliary strip (4) at the position corresponding to the locking screw (304). The locking screw (304) is inserted into the corresponding through hole (402). A locking bolt (307) is provided on the side of the auxiliary strip (4) opposite to the angle bracket (3) and is screwed in the locking screw (304).

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