CN201692564U - Rear power treadmill lifting mechanism - Google Patents

Abstract

The utility model specifically relates to a rear power treadmill lifting mechanism with a negative angle. It includes a base and an underframe. It is characterized in that one end of the underframe is hinged with the base. There is also a lifting device and an auxiliary supporting device between the base and the underframe. The lifting device is on the outside and the auxiliary supporting device is on the inside. The lifting device is a lift. The support device includes a support pipe, a chute and a slider. The lower end of the elevator is hinged to the lower bracket of the elevator fixed on the base, the upper end of the elevator is hinged to the upper bracket of the elevator fixed on the bottom frame, and one end of the support tube is connected to the support tube fixed on the base. The lower bracket is hinged, and the other end is connected with the slide block. The slide groove is installed on the bottom of the chassis, and the slide block can slide freely in the slide groove. The utility model has the advantages of simple and reasonable structure and good stability. In the utility model, the elevator, the support pipe, the base, and the underframe form a stable four-bar structure, which greatly improves the stability of the whole machine and simplifies the lifting structure.

Description

Rear power treadmill lifting mechanism

technical field

The utility model specifically relates to a rear power treadmill lifting mechanism with a negative angle.

Background technique

The commonly used front-mounted power treadmill consists of a chassis, a base, a lifting arm, a lift and lifting legs. The bottom frame is hinged to the upper end of the lift by the lifting arm fixed on the bottom frame, and the lower end of the lift is hinged to a point in the middle of the lifting leg. One end of the lifting leg is hinged with the base frame, and the other end is connected with the base frame. During work, the screw rod of the elevator rotates to drive the sleeve to elongate. Since the lower ends of the lifting legs are fixed on the base, the elevator drives the front end of the chassis to rise upwards. There is no problem in using this structure in a front-mounted power treadmill, and it has the advantages of simple structure, foldability, and the like.

However, the application of this structure to the rear-mounted power treadmill will cause the following problems: the rear-mounted power treadmill, especially the treadmill that requires a larger slope (for example ≥ 40%), will require the length of the screw and the sleeve of the elevator to be longer, Simultaneously, the dimensions of structural parts such as lifting legs increase relatively, resulting in an increase in the size and weight of the complete machine. Especially in the lifting process, the overall stability of the running platform is not good, and the strength requirements for the lifting screw are relatively high. If the method of moving backward is adopted, the center of gravity of the treadmill cannot be guaranteed to be at the center of the whole machine.

Utility model content

The purpose of this utility model is to overcome the above-mentioned problems and shortcomings, and provide a simple and easy-to-implement rear power treadmill lifting mechanism.

The utility model is achieved through the following technical solutions:

That is, a rear power treadmill lifting mechanism, including a base and an underframe, is characterized in that one end of the underframe is articulated with the base, and a lifting device and an auxiliary supporting device are also provided between the base and the underframe. The support device is on the inside, the lifting device is a lift, and the auxiliary support device includes a support pipe, a chute and a slider. One end of the support tube is hinged with the lower bracket of the support tube fixed on the base, and the other end is connected with the slide block. The slide slot is installed at the bottom of the chassis, and the slide block can slide freely in the slide slot.

The lower bracket of the elevator is located at the outer end of the base, the upper bracket of the elevator is located at the middle of the bottom of the chassis, the lower bracket of the support tube is located at the inner end of the base, and the chute is located at the inner side of the upper bracket of the elevator.

The lower bracket of the support tube is connected with the bridge type unloading mechanism.

A support block is arranged at the bottom of the slide block, and the upper end of the support pipe is hinged with the support block.

The elevator described in the utility model is a prior art product with a screw rod and a matching sleeve, and the elevator motor drives the screw rod to rotate to extend or shorten the sleeve to realize the lifting and lowering of the chassis.

The utility model has the advantages of simple and reasonable structure and good stability. In the utility model, the base and the front end of the base are hinged, and the lifting device is installed at the rear of the base. The lifter drives the base to lift through the screw and the sleeve, and an auxiliary support device is added between the base and the base, which solves the problem of the rear-mounted power treadmill. Stability issues. In the utility model, the elevator, the support pipe, the base, and the underframe form a stable four-bar structure, which greatly improves the stability of the whole machine and simplifies the lifting structure. Through experiments, the underframe of the utility model can be adjusted arbitrarily within the range of 10° to 40°.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is an enlarged schematic view of the chute and the slider of the present invention.

As shown in the figure: 1 base; 2 underframe; 3 bridge unloading mechanism; 4 support tube lower bracket; 5 support tube; cylinder; 11 elevators; 12 lower brackets of elevators.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further elaborated.

As shown in Figure 1 and Figure 2: the left end of the base 1 and the underframe 2 are hinged, the elevator 11 and the support pipe 5 are located at the base 1 and the underframe 2, the elevator 11 has a screw and a matching sleeve, and the lower end of the elevator 11 Hinged on the lower support 12 of the elevator, the upper end of the elevator 11 is hinged on the upper support 12 of the elevator, the lower support 12 of the elevator is located at the outer end of the base 1, and the upper support of the elevator is located at the middle of the bottom frame 2. The lower end of the support tube 5 is hinged on the support tube lower support 4, the support tube lower support 4 is located at the inner end of the base 1, the support tube lower support 4 is connected with the bridge unloading mechanism 3, and the upper end of the support tube 5 passes through the slider 6, the slide Groove 7 is connected with underframe 2, and chute 7 is installed in the bottom of underframe 1, is positioned at the inboard of support 9 on the elevator.

When the utility model is in use: when the elevator 11 rotates in the forward direction, the screw rod drives the sleeve to elongate, and the bottom frame 2 is lifted upwards by the thrust of the top of the elevator sleeve with the bottom of the elevator as a fulcrum. The lift of the underframe 2 drives the slide block 6 and the support pipe 5 to lift up at a certain angle. When the elevator stops, the slider 6 and the support pipe 5 are fixed at a certain angle, which plays an auxiliary supporting role for the bottom frame 2, reduces the pressure of the bottom frame 2 on the screw and sleeve of the elevator 11 during movement, and increases the stability of the whole machine . When the elevator 11 moves in reverse, the slide block 6 moves forward with the drop of the underframe 2 to make the support pipe 5 drop.

In this structure, the elevator 11, the support pipe 5, the base 1, and the underframe 2 form a stable four-bar structure, which greatly improves the stability of the whole machine and simplifies the lifting structure.

Claims (4)

1. A rear-mounted power treadmill lifting mechanism, comprising a base and an underframe, is characterized in that one end of the underframe is articulated with the base, and a lifting device and an auxiliary supporting device are also provided between the base and the underframe, and the lifting device is on the outside, The auxiliary supporting device is on the inner side, and the lifting device is a lifter. The auxiliary supporting device includes a support pipe, a chute and a slider. One end of the support tube is hinged with the lower bracket of the support tube fixed on the base, and the other end is connected with the slide block. The slide slot is installed at the bottom of the chassis, and the slide block can slide freely in the slide slot. 2. The rear powered treadmill lifting mechanism according to claim 1, wherein the lower support of the lift is located at the outer end of the base, the upper support of the lift is located at the middle of the bottom of the base, and the lower support of the support tube is located at the inner end of the base. The chute is located on the inside of the bracket on the lift. 3. The rear powered treadmill elevating mechanism according to claim 1, characterized in that the lower bracket of the support tube is connected with the bridge unloading mechanism. 4. The rear powered treadmill lifting mechanism according to claim 1, characterized in that a support block is provided at the bottom of the slider, and the upper end of the support tube is hinged to the support block.

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