Damping structure for air pump of pneumatic soft robot

Abstract

The utility model relates to a damping structure for an air pump of a pneumatic soft robot, the air pump is arranged on a main framework of the pneumatic soft robot, the damping structure comprises a first pump seat and a second pump seat, the air pump is fixedly arranged on the first pump seat, and the second pump seat is arranged on the main framework of the pneumatic soft robot. The first pump base and the second pump base are connected through a first damping assembly, and the second pump base and the main framework are fixed through a second damping assembly. The shock absorption assemblies are arranged between the first pump base and the second pump base and between the second pump base and the main framework respectively, namely, multi-stage shock absorption is adopted, collision between the air pump and the main framework is cut off as much as possible, shock is greatly reduced, and shock noise is reduced.

Description

Technical Field

[0001] The utility model relates to the field of rehabilitation robots, and particularly to a shock-absorbing structure for an air pump of a pneumatic soft robot. Background Art

[0002] Stroke is a major problem threatening human health in modern times, with a relatively high fatality and disability rate. In order to improve the living standards of patients after initial rehabilitation, rehabilitation treatment is particularly important. Now there are a large number of rehabilitation robots on the market, guiding patients to exercise their hands and feet. Due to the demand for portability, pneumatic soft rehabilitation robots are attracting more and more attention. The air pump is an important component in the pneumatic soft robot, mainly providing compressed gas for the robot to drive the soft robot to perform movements such as bending and straightening. However, since the air pump vibrates during operation, it will generate a relatively large noise, which is not conducive to the rehabilitation of patients.

[0003] Therefore, there is a need in the art for an air pump for a pneumatic soft robot with less noise. Summary of the Invention

[0004] The purpose of the utility model is to overcome the defects of the above-mentioned prior art and provide a shock-absorbing structure for an air pump of a pneumatic soft robot.

[0005] In order to achieve the purpose of the utility model, the present application provides the following technical solutions.

[0006] In the first aspect, the present application provides a shock-absorbing structure for an air pump of a pneumatic soft robot. The air pump is installed on the main skeleton of the pneumatic soft robot. The shock-absorbing structure includes a first pump seat and a second pump seat. Among them, the air pump is fixedly installed on the first pump seat. The first pump seat and the second pump seat are connected by a first shock-absorbing component, and the second pump seat is fixed to the main skeleton by a second shock-absorbing component. The noise of the air pump mainly comes from the vibration of the air pump during operation, the collision with the main skeleton, and the simultaneous driving of the main skeleton to vibrate, so that other components on the main skeleton collide with each other, thereby generating noise. The present application sets the first pump seat and the second pump seat, and respectively sets shock-absorbing components between the first pump seat and the second pump seat, and between the second pump seat and the main skeleton, that is, adopts multi-stage shock absorption, as much as possible to cut off the collision between the air pump and the main skeleton, greatly reducing the vibration and the vibration noise.

[0007] In one embodiment of the first aspect, the first shock absorbing assembly includes a plurality of horizontally distributed tension springs, and the two ends of the tension springs are respectively fixed to the first pump seat and the second pump seat. Through the tension springs, the first pump seat can be suspended above the second pump seat to a certain extent, minimizing the hard collision between the first pump seat and the second pump seat, thereby reducing the possibility of noise generation. Of course, in this application, in order to ensure the suspension effect of the first pump seat, the tension springs used need to have a certain stiffness, that is, to ensure that the horizontally arranged tension springs can support the gravity of the first pump seat in the vertical direction. If necessary, flexible pads and other parts can be added between the first pump seat and the second pump seat, which can provide vertical support and avoid hard collisions between the first pump seat and the second pump seat.

[0008] In one embodiment of the first aspect, the second pump seat is U-shaped, including two integrally formed vertical baffles and a horizontal bottom plate arranged between the two vertical baffles, one end of the tension spring is connected to one of the vertical baffles, and the other end is connected to the first pump seat.

[0009] In one implementation of the first aspect, the tension springs connected to the two vertical baffles are the same in number and symmetrical in position. This arrangement is to ensure that the first pump seat is evenly stressed in a natural state and is more stably installed.

[0010] In an implementation manner of the first aspect, the air pump is fixedly mounted on the first pump seat by screws.

[0011] In one embodiment of the first aspect, the second shock-absorbing assembly includes a columnar shock-absorbing pad and nuts located at the centers of both ends of the shock-absorbing pad, the shock-absorbing pad is made of silicone, and during installation, the shock-absorbing pad is placed between the second pump seat and the main frame, and the second pump seat and the main frame are respectively connected and fixed to the upper end and the lower end of the shock-absorbing pad by a bolt. The silicone shock-absorbing pad can reduce the vibration generated during the operation of the air pump and transmit it to the main frame below, greatly reducing vibration and vibration noise.

[0012] In the present application, the outer periphery of the shock-absorbing pad is made of silicone material, and flexible materials such as rubber can also be used. However, whether it is silicone or rubber, it needs to have a certain hardness, because the components are arranged vertically and need to bear a certain weight. If it does not have a certain hardness, the first pump seat and the second pump seat will not be stable in the vertical direction.

[0013] Compared with the prior art, the beneficial effect of the utility model lies in that: the present application respectively arranges shock-absorbing components between the first pump seat and the second pump seat, and between the second pump seat and the main frame, that is, adopts multi-stage shock absorption, so as to cut off the collision between the air pump and the main frame as much as possible, greatly reduce vibration, and reduce vibration noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall structural schematic diagram of the shock absorption structure of the present application;

[0015] Figure 2 This is the sectional structural schematic diagram of the shock absorption pad.

[0016] In the drawings, 1 is the main skeleton, 2 is the shock absorption pad, 21 is the silica gel sleeve, 22 is the nut, 3 is the second pump base, 4 is the tension spring, 5 is the air pump, 6 is the first pump base, and 7 is the screw. Specific Embodiments

[0017] Unless otherwise defined, the technical terms or scientific terms used in this specification and claims should have the ordinary meaning understood by those with ordinary skills in the technical field to which the present utility model belongs. All numerical values listed herein from the lowest value to the highest value refer to all numerical values obtained by incrementing by one unit between the lowest value and the highest value when the difference between the lowest value and the highest value is more than two units.

[0018] The following will describe the specific embodiments of the present utility model. It should be noted that in the specific description of these embodiments, for the sake of concise description, this specification cannot describe all features of the actual embodiments in detail. Without departing from the spirit and scope of the present utility model, those skilled in the art can modify and replace the embodiments of the present utility model, and the obtained embodiments are also within the protection scope of the present utility model. Embodiment

[0019] The following will elaborate on the embodiments of the present utility model. This embodiment is implemented on the premise of the technical solution of the present utility model, and detailed implementation manners and specific operation processes are given, but the protection scope of the present utility model is not limited to the following embodiments. Embodiment

[0020] A shock absorption structure for an air pump of a pneumatic soft robot, the structure of which is as Figure 1 shown. The air pump 5 is fixed on the first pump base 6 by 4 screws (not shown in the figure) at the bottom. One end of the 4 tension springs 4 is hooked on the interface of the first pump base 6, and the other end is hooked on the vertical baffle of the second pump base 3. Two tension springs 4 are connected to each vertical baffle, and the first pump base 6 is suspended and fixed on the second pump base 3 through the tension springs 4.

[0021] The second pump base 3 is fixed on the main skeleton 1 by using 4 shock absorption pads 2. The structure of the shock absorption pad 2 is as Figure 2As shown, a silica gel sleeve 21 is provided on its exterior, and a nut 22 is respectively inlaid at the centers of both ends of the silica gel sleeve 21. Then, the shock pad 2 is placed between the second pump base 3 and the main skeleton 1, and the second pump base 3 is fixed to the shock pad 2 with a screw 7, and the main skeleton 1 is fixed to the shock pad 2 with another screw (the screw used for connecting the main skeleton and the shock pad is not shown in the figure). The shock pad 2 can also absorb vibrations to a certain extent. Such a structural form can reduce the vibrations generated during the operation of the air pump 3 from being transmitted to the main skeleton 1 below, greatly reducing vibrations and vibration noise.

[0022] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and apply this application. Obviously, those who are familiar with the technology in this field can easily make various modifications to these embodiments and apply the general principles described here to other embodiments without creative efforts. Therefore, this application is not limited to the embodiments here. Improvements and modifications made by those skilled in the art based on the content disclosed in this application without departing from the scope and spirit of this application are within the scope of this application.

Claims

1. A shock absorbing structure for an air pump of a pneumatic soft robot, wherein the air pump is installed on the main frame of the pneumatic soft robot, characterized in that: The shock-absorbing structure includes a first pump seat and a second pump seat, wherein the air pump is fixedly mounted on the first pump seat, the first pump seat and the second pump seat are connected by a first shock-absorbing assembly, and the second pump seat and the main frame are fixed by a second shock-absorbing assembly.

2. The shock absorbing structure for a pneumatic soft robot air pump as claimed in claim 1, characterized in that: The first shock absorbing assembly includes a plurality of horizontally distributed tension springs, and two ends of the tension springs are respectively fixed to the first pump seat and the second pump seat.

3. The shock absorbing structure for a pneumatic soft robot air pump as claimed in claim 2, characterized in that: The second pump seat is U-shaped, including two integrally formed vertical baffles and a horizontal bottom plate arranged between the two vertical baffles. One end of the tension spring is connected to one of the vertical baffles, and the other end is connected to the first pump seat.

4. The shock absorbing structure for a pneumatic soft robot air pump as claimed in claim 3, characterized in that: The tension springs connected to the two vertical baffles are the same in number and symmetrical in position.

5. The shock absorbing structure for a pneumatic soft robot air pump as claimed in claim 1, characterized in that: The air pump is fixedly mounted on the first pump seat by screws.

6. The shock absorbing structure for a pneumatic soft robot air pump as claimed in claim 1, characterized in that: The second shock-absorbing assembly includes a columnar shock-absorbing pad and nuts located at the centers of both ends of the shock-absorbing pad. The shock-absorbing pad is made of silicone. During installation, the shock-absorbing pad is placed between the second pump seat and the main frame. The second pump seat and the main frame are respectively connected and fixed to the upper and lower ends of the shock-absorbing pad by a bolt.

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