Medical office chair with mobile noise weakening function

By setting a moving wheel with polyurethane wrapped metal spheres on the limit blocks and the lower surfaces of the medical office chair, the problems of high mobile noise of the medical office chair and the gas spring are easily exploded, achieving the effect of noise reduction and safety improvement.

CN222640089UActive Publication Date: 2025-03-21CHENZHOU NO 1 PEOPLES HOSPITAL
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Patent Information

Application Number
CN202420803505.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-18
Publication Date
2025-03-21
Estimated Expiration
2034-04-18

AI Technical Summary

Technical Problem

The existing medical office chairs produce a lot of noise when moving, resulting in poor resting environment for medical staff. At the same time, the gas springs are prone to explode, posing safety hazards.

Method used

A medical office chair with mobile noise reduction function is designed. By setting a moving wheel of polyurethane wrapped metal sphere on the lower surface of the limit block and the legs, it is changed to the linear rolling of the sphere to reduce the contact area and disperse the pressure, reducing noise generation; at the same time, the coordination between the limit block and the connecting plate prevents the gas spring from exceeding the limit explosion.

Benefits of technology

It effectively reduces the noise when office chairs move, improves the quality of resting environment for medical staff, and reduces the safety threat of gas spring explosion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a medical office chair with a moving noise weakening function, and aims to solve the technical problem that the current medical office chair is inconvenient to provide a quiet use environment for medical staff, the medical office chair comprises a chair main body, support legs are arranged below the chair main body, and a back plate is arranged on one side of the chair main body; through the moving wheels arranged on the lower surfaces of the limiting blocks and the supporting legs, surface rolling is changed into spherical linear rolling, the contact area is reduced, meanwhile, pressure borne by each moving wheel is dispersed, meanwhile, under the action of the limiting blocks and the connecting plates, the situation that the upper end of the gas spring moves upwards after the gas spring is exploded due to the fact that the interior of the gas spring is pressed to exceed the limit can be avoided, and the service life of the gas spring is prolonged. The noise is reduced, and the threat to personnel caused by gas spring explosion is reduced at the same time; after a medical worker leans against the back cushion, the pressure-bearing plate is pressed and controlled to rotate clockwise on the outer side of the supporting rod, so that the headrest is moved forwards by a certain angle, the headrest which can be relied on is provided for the medical worker, and the hospital office chair is convenient to use.
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Description

Technical Field

[0001] The utility model relates to the technical field of office chairs, in particular to a medical office chair with a moving noise reduction function. Background Art

[0002] Office chairs refer to various chairs that are equipped for the convenience of work in daily work and social activities, and are used in all walks of life.

[0003] The office chairs currently used in hospitals are particularly important for reducing the noise caused by movement, due to environmental requirements and to provide a quiet rest environment for tired medical staff after surgery. In view of this, we propose a medical office chair with the function of reducing movement noise. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet practical needs, and provide a medical office chair with a mobile noise reduction function to solve the technical problem that the current medical office chair is not convenient for providing a quiet use environment for medical staff.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows: a medical office chair with a mobile noise reduction function is designed, including a seat body, a leg is arranged below the seat body, a back plate is arranged on one side of the seat body, a gas spring is fixedly connected to the upper end of the leg, a connecting plate is fixedly connected to the upper end of the outer surface of the gas spring, a connecting rod is fixedly connected to the lower surface of the connecting plate, and a limit block is fixedly connected to the lower end of the connecting rod, and the limit block and the lower surface of the leg are both movably connected with a moving wheel composed of a polyurethane-wrapped metal sphere, and a perforation is provided on the upper surface of the junction of the leg and the connecting rod; the utility model changes the surface rolling into the linear rolling of the sphere to reduce the contact area by setting the moving wheel on the limit block and the lower surface of the leg, while dispersing the pressure borne by each moving wheel and reducing the noise generated by contact with the ground under the action of polyurethane, and at the same time, the upper end of the gas spring can be prevented from moving upward after the gas spring is exploded due to excessive pressure inside the gas spring under the action of the limit block and the connecting plate, thereby reducing the noise and reducing the threat of the gas spring explosion to personnel.

[0006] The support rod is internally movably connected to the support plate, and the support plate has an upper end fixedly connected to the support plate, and the lower end of the support plate is movably connected to the slide rail, and the lower end of the support plate is fixedly connected to the slide rail, and the slide rail is provided with a limit groove matching the slide rail; the middle part of the outer surface of the slide rail is movably connected to the pressure plate, and one end of the pressure plate is movably connected to an extension plate at a large obtuse angle to the pressure plate through an axis and a torsion spring, and one end of the extension plate is fixedly connected to the connecting block, and the outer surface of the connecting block is movably connected to the support rod, and the inner part of the pressure plate is movably connected to the support rod; the utility model can adjust the angle of the connecting block after the medical staff leans on the support cushion, and further presses and controls the pressure plate to rotate clockwise on the outer side of the support rod to move the headrest forward by a certain angle, providing a reliable headrest for medical staff, which is convenient for use of the hospital office chair.

[0007] Preferably, the diameter of the limit block is larger than the diameter of the perforation, a telescopic rod is provided in the middle of the connecting rod, and the two ends of the telescopic rod are connected to the inner walls of the two ends of the connecting rod through springs inside the connecting rod; the limit block with a larger diameter prevents the connecting rod from being completely pulled out from the inside of the leg, and at the same time the spring provides a certain pressure bearing and buffering effect for the use of the connecting rod.

[0008] Preferably, an opening matching the pressure plate is provided in the middle of the bottom surface of the fixed block, and the slide rail is inclined; the opening on the bottom surface of the fixed block provides space for the rotation of the pressure plate, and the inclined slide rail facilitates the control of the support plate to drive the headrest to extend upward to the top of the back plate, thereby facilitating the use of the headrest.

[0009] Preferably, the support rod is located inside the pressure plate near one end of the sliding rod, and a sliding groove matching the extension plate is penetrated through the front surface of the back plate; the right side force arm of the pressure plate with the support rod as the center is longer, which facilitates the connection block to compress the pressure plate to rotate on the outer surface of the support rod.

[0010] Preferably, the moving wheel is a sphere, the gas spring is divided into upper and lower parts, and the connecting plate is fixedly connected to the upper part of the gas spring; the spherical moving wheel changes the surface contact between the cylindrical wheel and the ground into line contact, reducing the contact area between the fulcrum of the office chair and the ground.

[0011] Preferably, the outer surface of the cushion is an arc surface, and the pressure plate and the extension plate have the same width; the arc surface of the cushion makes it easy for the cushion to be close to the back of the medical staff, and the pressure plate and the extension plate of the same width facilitate the control of the movement of the support plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model changes the surface rolling into the linear rolling of the sphere by setting the moving wheels on the lower surface of the limit block and the support leg to reduce the contact area, disperse the pressure on each moving wheel and reduce the noise generated by the contact with the ground under the action of polyurethane. At the same time, under the action of the limit block and the connecting plate, the upper end of the gas spring can be prevented from moving upward after the gas spring is exploded due to excessive pressure inside the gas spring, thereby reducing the noise and the threat to personnel caused by the explosion of the gas spring.

[0014] 2. The utility model allows the medical staff to lean on the cushion and adjust the angle on the connecting block. At the same time, the pressure plate is further pressed to rotate clockwise on the outside of the support rod to move the headrest forward at a certain angle to provide the medical staff with a reliable headrest, which is convenient for the use of the hospital office chair. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the gas spring structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the slide rail structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the support rod structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the mobile wheel of the utility model;

[0020] In the figure: 1. seat body; 2. support leg; 201. gas spring; 202. connecting plate; 203. connecting rod; 204. telescopic rod; 205. perforation; 206. limit block; 207. moving wheel; 3. back plate; 4. cushion; 401. extension plate; 402. pressure plate; 403. support rod; 404. connecting block; 5. headrest; 501. support plate; 502. slide rail; 503. slide rod; 504. limit groove; 6. fixing block. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0022] Embodiment: A medical office chair with a moving noise reduction function, see Figures 1 to 5, including a seat body 1, a leg 2 is arranged below the seat body 1, a back plate 3 is arranged on one side of the seat body 1, the upper end of the leg 2 is fixedly connected to a gas spring 201, the upper end of the outer surface of the gas spring 201 is fixedly connected to a connecting plate 202, the lower surface of the connecting plate 202 is fixedly connected to a connecting rod 203, the lower end of the connecting rod 203 is fixedly connected to a limiting block 206, the limiting block 206 and the lower surface of the leg 2 are both movably connected to a moving wheel 207 composed of a polyurethane-wrapped metal sphere, and the upper surface of the junction of the leg 2 and the connecting rod 203 A through hole 205 is provided; the utility model changes the surface rolling into the linear rolling of the sphere by setting the moving wheel 207 on the lower surface of the limit block 206 and the support leg 2 to reduce the contact area, disperse the pressure on each moving wheel 207, and reduce the noise generated by the contact with the ground under the action of polyurethane. At the same time, under the action of the limit block 206 and the connecting plate 202, the upper end part of the gas spring 201 can be prevented from moving upward after the gas spring 201 is exploded due to excessive pressure inside the gas spring 201, thereby reducing the noise and the threat to personnel caused by the explosion of the gas spring 201.

[0023] Specifically, the rear surface of the back plate 3 is fixedly connected with a fixing block 6, the inner surface of the fixing block 6 is movably connected with a support plate 501, the upper end of the support plate 501 is fixedly connected with a headrest 5, the lower end of the outer surface of the support plate 501 is movably connected with a slide rail 502, the interior of the lower end of the support plate 501 is fixedly connected with a slide rod 503, and the interior of the slide rail 502 is provided with a limiting groove 504 matching the slide rod 503; the middle part of the outer surface of the slide rod 503 is movably connected with a pressure plate 402, and one end of the pressure plate 402 is movably connected with the pressure plate 402 through a shaft and a torsion spring. The plate 402 is an extension plate 401 with a large obtuse angle, and one end of the extension plate 401 is fixedly connected to a connecting block 404, the outer surface of the connecting block 404 is movably connected to a cushion 4, and the inside of the pressure plate 402 is movably connected to a support rod 403; the utility model allows medical staff to lean on the cushion 4 and adjust the angle on the connecting block 404, while further pressing and controlling the pressure plate 402 to rotate clockwise on the outer side of the support rod 403 to move the headrest 5 forward at a certain angle, providing medical staff with a reliable headrest 5, thereby facilitating the use of the hospital office chair.

[0024] Furthermore, the diameter of the limit block 206 is larger than the diameter of the through hole 205, a telescopic rod 204 is provided in the middle of the connecting rod 203, and the two ends of the telescopic rod 204 are connected to the inner walls of the two ends of the connecting rod 203 inside the connecting rod 203 through springs; the limit block 206 with a larger diameter prevents the connecting rod 203 from being completely withdrawn from the inside of the support leg 2, and at the same time, the spring provides a certain pressure bearing and buffering effect for the use of the connecting rod 203.

[0025] Furthermore, an opening matching the pressure plate 402 is provided in the middle of the bottom surface of the fixed block 6, and the slide rail 502 is inclined; the opening on the bottom surface of the fixed block 6 provides space for the rotation of the pressure plate 402, and the inclined slide rail 502 facilitates the control of the support plate 501 to drive the headrest 5 to extend obliquely upward to the top of the back plate 3, thereby facilitating the use of the headrest 5.

[0026] It is worth mentioning that the support rod 403 is located inside the pressure plate 402 near one end of the sliding rod 503, and a sliding groove matching the extension plate 401 is opened through the front surface of the back plate 3; the right side force arm of the pressure plate 402 with the support rod 403 as the center is longer, which facilitates the connection block 404 to compress the pressure plate 402 to rotate on the outer surface of the support rod 403.

[0027] It is worth noting that the moving wheel 207 is a sphere, the gas spring 201 is divided into two parts, the connecting plate 202 is fixedly connected to the upper part of the gas spring 201; the spherical moving wheel 207 changes the surface contact between the cylindrical wheel and the ground into line contact, reducing the contact area between the fulcrum of the office chair and the ground.

[0028] It is worth mentioning that the outer surface of the cushion 4 is an arc surface, and the pressure plate 402 and the extension plate 401 have the same width; the arc surface of the cushion 4 makes it easy for the cushion 4 to be close to the back of the medical staff, and the pressure plate 402 and the extension plate 401 of the same width facilitate the control of the movement of the support plate 501.

[0029] Working principle: When using the chair, medical staff will apply pressure to the gas spring 201 and the connecting rod 203, and make the moving wheel 207 contact the ground, wherein the limit block 206 and the connecting plate 202 limit the complete separation of the upper end of the gas spring 201 from the support leg 2, to avoid the threat to medical staff caused by the upper end of the gas spring 201 moving upward after the gas spring 201 explodes. During use, first sit on the office chair and lean back and automatically adapt. At this time, the cushion 4 rotates on the outer surface of the connecting block 404 and fits the back of the medical staff, and then the cushion 4 presses down one end of the pressure plate 402 through the extension plate 401 so that it rotates on the outer surface of the support rod 403 and compresses the torsion spring to make it stressed. At this time, the other end of the pressure plate 402 controls the support plate 501 to move upwardly and tilted inside the slide rail 502, and moves the headrest 5 to the top of the back plate 3 to provide a headrest for medical staff, which is convenient for the use of hospital office chairs.

[0030] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A medical office chair with a function of reducing movement noise, comprising a seat body (1), legs (2) being arranged below the seat body (1), and a backboard (3) being arranged on one side of the seat body (1), characterized in that: The upper end of the support leg (2) is fixedly connected to a gas spring (201), the upper end of the outer surface of the gas spring (201) is fixedly connected to a connecting plate (202), the lower surface of the connecting plate (202) is fixedly connected to a connecting rod (203), the lower end of the connecting rod (203) is fixedly connected to a limit block (206), the limit block (206) and the lower surface of the support leg (2) are both movably connected to a moving wheel (207) composed of a polyurethane-wrapped metal sphere, and a through hole (205) is provided on the upper surface of the junction of the support leg (2) and the connecting rod (203).

2. The medical office chair with movement noise reduction function according to claim 1, characterized in that: The rear surface of the back plate (3) is fixedly connected to a fixing block (6), the inner surface of the fixing block (6) is movably connected to a support plate (501), the upper end of the support plate (501) is fixedly connected to a headrest (5), the lower end of the outer surface of the support plate (501) is movably connected to a slide rail (502), the interior of the lower end of the support plate (501) is fixedly connected to a slide rod (503), and the interior of the slide rail (502) is provided with a limiting groove (504) matching the slide rod (503); The middle part of the outer surface of the sliding rod (503) is movably connected to a pressure plate (402), one end of the pressure plate (402) is movably connected to an extension plate (401) which is at a large obtuse angle to the pressure plate (402) through an axis and a torsion spring, one end of the extension plate (401) is fixedly connected to a connecting block (404), the outer surface of the connecting block (404) is movably connected to a cushion (4), and the inside of the pressure plate (402) is movably connected to a support rod (403).

3. The medical office chair with movement noise reduction function according to claim 1, characterized in that: The diameter of the limit block (206) is greater than the diameter of the through hole (205); a telescopic rod (204) is provided in the middle of the connecting rod (203); and two ends of the telescopic rod (204) are connected to the inner walls of the two ends of the connecting rod (203) through springs inside the connecting rod (203).

4. The medical office chair with movement noise reduction function as claimed in claim 2, characterized in that: An opening matching the pressure plate (402) is provided in the middle of the bottom surface of the fixed block (6), and the slide rail (502) is arranged at an angle.

5. The medical office chair with movement noise reduction function as claimed in claim 2, characterized in that: The support rod (403) is located inside the pressure plate (402) near one end of the slide rod (503), and a slide groove matching the extension plate (401) is formed through the front surface of the back plate (3).

6. The medical office chair with movement noise reduction function according to claim 1, characterized in that: The moving wheel (207) is a sphere, the gas spring (201) is divided into two parts, an upper part and an lower part, and the connecting plate (202) is fixedly connected to the upper part of the gas spring (201).

7. The medical office chair with movement noise reduction function as claimed in claim 2, characterized in that: The outer surface of the back cushion (4) is a curved surface, and the pressure plate (402) and the extension plate (401) have the same width.