CN219416728U - Device for detecting comfort of ergonomic seat - Google Patents

Abstract

The utility model discloses a device for detecting comfort of an ergonomic chair, and relates to the field of ergonomic chairs. The existing rigid dummy model is improved into an elastic dummy model, the elastic dummy model comprises a framework, a filling layer and an elastic layer, wherein the framework is arranged in the filling layer, the elastic layer is coated outside the filling layer, at least one pipeline is arranged in the filling layer, and the pipeline can be added with fluid to change the weight of the dummy model, so that the whole and partial pressure values of human bodies with different weights on a seat can be reflected; and the pipeline adopts an expandable structure, so that the weight of the dummy model is related to the body type of the dummy model, and the whole and partial pressure values of the human bodies with different weights and different body types on the seat are more accurately reflected.

Description

Device for detecting comfort of ergonomic seat

Technical Field

The utility model discloses a device for detecting comfort of an ergonomic chair, and relates to the field of ergonomic chairs.

Background

The chair art product has the essential function of providing rest for people and is a living necessity for everyone. In modern society, staff in a job site spends more than 9.3 hours on a chair, which is attributed to the fact that most of the current enterprises use sitting postures for office work, and the staff returns to home to rest on a seat or a sofa. While chair art products provide our rest, they also become our healthy killers. Most patients with low back pain are caused by prolonged sitting. And whether regularly exercising or not at ordinary times, sitting too long may increase the chances of illness and death.

In order to aim at the health influence of long-time sitting on human body, the multifunctional chair art product with comfortableness becomes a realistic choice, and the design and manufacture of the ergonomic chair art product becomes a new hot point for the development of furniture industry at home and abroad.

However, although many enterprises claim that the products are comfortable, the products conform to ergonomics, and the effect is not satisfactory. The main reason for this is the lack of detection capability of the comfort chair art. Most businesses also employ subjective comfort assessment. Since it is obtained by direct measurement by human, it is the most direct expression, but it is difficult to achieve consistent results due to individual differences in human bodies.

There is therefore a need in the art for a device that is compatible with objective testing. As known, there is a dummy for pressure comfort test of office chairs disclosed in patent No. CN202010057571.4, which collects pressure signals of a contact side of the dummy with a sitting surface of an office chair by providing a plurality of pressure sensors on a standardized manikin, simulates pressure distribution conditions of a sitting surface of a chair on which a real person sits, and accurately and scientifically evaluates pressure comfort of the office chair through the pressure distribution conditions.

However, such devices do not take into account differences in body weight and the data tested are not comprehensive enough.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the device for detecting the comfort of the ergonomic chair, the device aims to replace a human body to carry out standardized test, is different from a general rigid dummy model, adopts an elastic material coated outside, has adjustable weight, and can reflect the integral and local pressure values of the human body with different weights on the chair by being matched with the prior body pressure distribution testing device.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a human engineering seat travelling comfort detects uses device, includes dummy model and body pressure distribution testing arrangement, and the dummy model is including skeleton, filling layer and the cladding outside elastic layer that is in inside, and the inside of filling layer is equipped with at least one pipeline, the inside pipeline of filling layer can add fluid and change the weight of dummy model.

Further, the tubing is of an inflatable construction.

Further, the pipeline comprises a rubber pipe body, and one-way valves and butterfly valves which are arranged at two ends of the rubber pipe body.

Further, the pipeline passes through the whole body of the dummy model, the one-way valve is arranged at the left leg of the dummy model, and the butterfly valve is arranged at the right leg of the dummy model.

Further, the framework comprises a pelvic bone support body, a spine support body, a chest back support body and a thigh support body which are made of metal materials; thigh supporter has two, and its symmetry sets up in the both sides of pelvic bone supporter, and the backbone supporter is fixed at the pelvic bone supporter, and the back of the body supporter is equipped with a plurality ofly, and it sets up along the backbone supporter, and the back of the body supporter encircles the backbone supporter.

Further, the end of the thigh support body is provided with a ball head, the pelvic bone support body is provided with a corresponding head seat, and the ball head is connected with the head seat.

Further, the elastic layer is made of rubber.

Further, the filling layer comprises a sponge in the shape of a block, a cylinder or a sphere.

The beneficial effects are that: the utility model improves the existing rigid dummy model into an elastic dummy model, which comprises a framework, a filling layer and an elastic layer, wherein the framework is arranged in the filling layer; and the pipeline adopts an expandable structure, so that the weight of the dummy model is related to the body type of the dummy model, and the whole and partial pressure values of the human bodies with different weights and different body types on the seat are more accurately reflected.

Drawings

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

reference numerals illustrate: the artificial model 1, the framework 11, the pelvic bone support 111, the spine support 112, the chest and back support 113, the thigh support 114, the ball head 114a, the elastic layer 2, the chain 21 and the pipeline 3.

Detailed Description

The utility model is further described below with reference to the drawings and specific examples. Those of ordinary skill in the art will be able to implement the utility model based on these descriptions. In addition, the embodiments of the present utility model referred to in the following description are typically only some, but not all, embodiments of the present utility model. Therefore, all other embodiments, which can be made by one of ordinary skill in the art without undue burden, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

As shown in fig. 1 and 2, the device for detecting the comfort of an ergonomic chair comprises a dummy model 1 and a body pressure distribution testing device, wherein the dummy model 1 comprises a framework 11 positioned inside, a filling layer and an elastic layer 2 coated outside, and at least one pipeline 3 is arranged inside the filling layer. Wherein the skeleton 11 is used as a support, the inner filling layer is used for enabling the dummy model 1 to form a certain shape, the outer elastic layer 2 is used for simulating skin contact, the pressure distribution testing device is distributed on the sitting surface and the backrest of the seat, and the body pressure distribution testing device can reflect the whole and partial pressure values of the dummy model 1 on the seat. The pipeline 3 in the filling layer can be added with fluid to change the weight of the dummy model 1, the whole and partial pressure values of the human body with different weights on the seat can be reflected, and the comfort degree of the seat to the human body with different weights can be intuitively measured by researching and analyzing the data such as the distribution gradient, the stress concentration, the symmetry degree and the like of the pressure values.

In this embodiment, the body pressure distribution testing device adopts the prior art, for example, the scheme disclosed in patent CN201621198502.0 may be adopted, which converts pressure into an electrical signal by using the piezoelectric effect of piezoelectric ceramics, the pressures applied to different parts on the surface of the seat are different, the quantity of charges accumulated on the metal layer evaporated by each piezoelectric ceramic sheet is also different, and each electrical signal is input to the external test system through the output interface for processing and analysis, so that the condition of body pressure distribution on the working seat can be obtained.

In this embodiment, the pipe 3 is preferably an inflatable structure, and after the filling amount is increased, the pipe 3 can be inflated to further expand the elastic layer 2, so that the weight of the dummy model 1 is related to the body shape of the dummy model 1, and thus the pressure values of the whole and partial human bodies with different weights and different body shapes on the seat can be reflected more accurately. Specifically, this pipeline 3 includes the rubber body and is located check valve and the butterfly valve at rubber body both ends, and the pipeline 3 that the rubber body made can real inflation, and the check valve is used for adding the fluid to the check valve makes the fluid only flow in along the water inlet, need not worry that the fluid flows backward, and the butterfly valve is used for controlling opening and shutting of pipeline 3, can discharge the fluid, and can control the flow when discharging the fluid, lets the fluid can not be too fast by the discharge, when reducing the weight of dummy model 1, more easily control.

In this embodiment, the skeleton 11 includes a pelvic bone support 111, a spine support 112, a chest back support 113, and thigh supports 114, two thigh supports 114 are symmetrically disposed at two sides of the pelvic bone support 111, the spine support 112 is fixed on the pelvic bone support 111, the chest back support 113 is provided with a plurality of spine supports 112, the chest back support 113 surrounds the spine support 112, and the skeleton 11 formed by the pelvic bone support 111, the spine support 112, the chest back support 113, and the thigh supports 114 is used as a support of the dummy model 1, so that the dummy model 1 maintains a certain shape, and is made of metal materials, thereby increasing weight and achieving the weight of a person.

In this embodiment, the pipe 3 may be a single one, the check valve of which is disposed at the left leg of the dummy 1 to facilitate the fluid addition, and is spirally wound around the left thigh support 114 for several turns to extend to the back of the upper body of the dummy 1, then back and forth along the wave shape, and finally from the front of the upper body, through the right thigh support leg, and finally wound around several turns, and the butterfly valve is disposed at the right leg of the dummy 1. The pipeline 3 can also be a plurality of pipelines. However, the line 3 may be provided throughout the body. Because the body of a person with a large body weight is fat, and the whole body of the person with a large body weight is fat, after the pipeline 3 passes through the whole body, the pipeline 3 can expand to ensure that the whole dummy model 1 expands integrally, and the effect is better.

Preferably, the end of the thigh support 114 is provided with a ball 114a, the pelvic support 111 is provided with a corresponding ball 114a seat, and the ball 114a is connected with the ball 114a seat. The thigh support 114 is connected with the pelvic bone support 111 via the ball 114a in a universal manner, so that the two thighs of the dummy model 1 have a certain degree of freedom compared with the upper body, and the upper body and the thighs can be completely contacted with the backrest and the sitting surface of the chair after the dummy model 1 is sitting on the chair, and the whole and partial pressure values of the human body on the chair can be reflected more accurately.

In this embodiment, the elastic layer 2 is made of rubber, which has a high tension and is more suitable for the requirement of the variation of the figure of the dummy model 1. In this example, the filling layer comprises a block, cylindrical, spherical sponge, wherein the cylindrical sponge is used to cover the thigh support 114, the block sponge is used to adhere to the back of the chest back support 113, and the spherical sponge is filled in the cavity of the skeleton 11 and the gap between the skeleton 11 and the elastic layer 2. In addition to the sponge being used as a filling to shape the dummy 1, it is more important that the sponge be used to locate the pipeline 3. For example, the pipe 3 cannot be wound around the thigh support 114 directly, and since the thigh support 114 is made of a hard material, the pipe 3 is burst by expanding on the thigh support 114, and thus the pipe 3 is wound around a cylindrical sponge by covering the thigh support 114 with the cylindrical sponge. For example, the pipeline 3 needs to go up and down along the waveform at the back and is troublesome to bind the pipeline 3 on the chest back support 113 by using a rope, so that a block-shaped sponge can be adhered to the back of the chest back support 113, a corresponding groove is dug out on the block-shaped sponge, and the pipeline 3 is embedded in the groove for positioning. The spherical sponge may be any sponge having a size satisfying the longest strength of 3 to 5CM, without limiting the shape.

Preferably, the elastic layer 2 of the present utility model has a chain 21 from top to bottom at the forechest of the dummy 1 for the purpose of facilitating the assembly of the dummy 1. Specifically, the assembling step of the dummy model 1 includes:

1. sponge fixing

A cylindrical sponge is sleeved on the thigh support 114, and a block-shaped sponge is adhered to the back of the chest back support 113;

2. the pipeline 3 is fixed

The pipeline 3 is spirally wound along the left thigh support 114 for a few circles and then extends to the back of the upper body of the dummy model 1, then the pipeline goes up and down for a few circles along the wave shape on the back, and finally the pipeline is wound from the front of the upper body for a few circles through the right thigh support leg;

3. elastic layer 2 suit

The elastic layer 2 is sleeved outside the framework 11, and the one-way valve and the butterfly valve of the pipeline 3 penetrate out from the left leg and the right leg;

4. sponge filling

The spherical sponge is filled into the cavity of the skeleton 11 and the gap between the skeleton 11 and the elastic layer 2.

While the utility model has been described in terms of embodiments, it will be appreciated by those skilled in the art that the utility model is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present utility model are intended to be included within the scope of the appended claims.

Claims (9)

1. The utility model provides a human engineering seat travelling comfort detects and uses device, includes dummy model (1) and body pressure distribution testing arrangement, its characterized in that: the dummy model (1) comprises a framework (11) positioned in the interior, a filling layer and an elastic layer (2) coated outside, wherein at least one pipeline (3) is arranged in the filling layer, and the pipeline (3) in the filling layer can be filled with fluid to change the weight of the dummy model (1).

2. The ergonomic seat comfort detection device of claim 1 wherein: the pipeline (3) is of an expandable structure.

3. An ergonomic seat comfort detection device as set forth in claim 2 wherein: the pipeline (3) comprises a rubber pipe body, and one-way valves and butterfly valves which are arranged at two ends of the rubber pipe body.

4. An ergonomic seat comfort detection device as set forth in claim 3 wherein: the pipeline (3) passes through the whole body of the dummy model (1), the one-way valve is arranged at the left leg of the dummy model (1), and the butterfly valve is arranged at the right leg of the dummy model (1).

5. The ergonomic seat comfort detection device of claim 1 wherein: the framework (11) comprises a pelvic bone supporting body (111), a spine supporting body (112), a chest back supporting body (113) and a thigh supporting body (114) which are made of metal materials; thigh support body (114) have two, and its symmetry sets up in the both sides of pelvic bone support body (111), and spinal column support body (112) are fixed in pelvic bone support body (111), and back of the body support body (113) are equipped with a plurality ofly, and it sets up along spinal column support body (112), and back of the body support body (113) encircle spinal column support body (112).

6. The ergonomic chair comfort detection device of claim 5 wherein: the end of the thigh support body (114) is provided with a ball head (114 a), the pelvic bone support body (111) is provided with a corresponding ball head (114 a) seat, and the ball head (114 a) is connected with the ball head (114 a) seat.

7. The ergonomic chair comfort detection device of claim 5 wherein: the elastic layer (2) is made of rubber.

8. The ergonomic chair comfort detection device of claim 7 wherein: the filling layer comprises a blocky, cylindrical and spherical sponge; the cylindrical sponge is sleeved on the thigh support body (114), the blocky sponge is adhered to the back of the chest and back support body (113), and the spherical sponge is filled in the cavity of the framework (11) and the gap between the framework (11) and the elastic layer (2).

9. The ergonomic chair comfort detection device of claim 8 wherein: the forechest of the elastic layer (2) is provided with a chain (21).