阅读说明：本技术 一种空气呼吸器托架及消防车座椅 (Air respirator bracket and fire engine seat ) 是由 高莹 杨文军 路易霖 张志兵 于 2020-05-22 设计创作，主要内容包括：本发明公开了一种空气呼吸器托架及消防车座椅,空气呼吸器托架包括结构骨架,结构骨架包括纵向支撑、上固定板、下固定板、托盘、转轴；纵向支撑与上固定板、下固定板构成结构框架,纵向支撑的下端连接设置用于托举空气呼吸器的托盘,托盘的底部竖直方向连接设置转轴,用于与底座的轴承座转动连接,实现空气呼吸器托架以转轴为中心轴进行旋转。实现呼吸器存放与座椅靠背两大功能独立,通过旋转结构实现了功能切换,减少两功能之间的冲突,解决现有消防车座椅背靠支撑面积小、腰靠无法对腰部提供支撑等问题,提高消防车座椅乘坐的舒适性。同时解决现有方案中头枕影响空气呼吸器放置和取出的问题,提高空气呼吸器取放的便利性。(The invention discloses an air respirator bracket and a fire engine seat, wherein the air respirator bracket comprises a structural framework, and the structural framework comprises a longitudinal support, an upper fixing plate, a lower fixing plate, a tray and a rotating shaft; the longitudinal support, the upper fixing plate and the lower fixing plate form a structural frame, the lower end of the longitudinal support is connected with a tray used for lifting the air respirator, the rotating shaft is arranged in the vertical direction of the bottom of the tray in a connected mode and used for being connected with a bearing seat of the base in a rotating mode, and the air respirator bracket is rotated by taking the rotating shaft as a central shaft. Realize that the respirator deposits and two big functions of seat back are independent, realized the function through revolution mechanic and switched, reduce the conflict between two functions, solve current fire control vehicle back of the chair back and lean on that the support area is little, the waist leans on can't provide the support scheduling problem to the waist, improve the travelling comfort that fire control vehicle seat took. Simultaneously, the problem that the headrest influences the placement and the taking-out of the air respirator in the existing scheme is solved, and the convenience for taking and placing the air respirator is improved.)

1. An air respirator bracket, characterized in that the air respirator bracket comprises a structural framework, wherein the structural framework comprises a longitudinal support (13), an upper fixing plate (15), a lower fixing plate (19), a tray (16) and a rotating shaft (17);

longitudinal support (13) and upper fixed plate (15), bottom plate (19) constitute structural framework, and the lower extreme of longitudinal support (13) is connected and is set up tray (16) that are used for lifting air respirator, and the vertical direction in bottom of tray (16) is connected and is set up pivot (17) for rotate with bearing frame (10) of base (4) and be connected, realize that the air respirator bracket uses the pivot to rotate as the center pin.

2. The air respirator bracket according to claim 1, further comprising a clamping device (14), wherein the clamping device (14) is fixedly mounted on the upper fixing plate (15) and the lower fixing plate (19) up and down, and at least one set of clamping mechanisms is arranged on the clamping device (14) and used for clamping the air respirator.

3. The air respirator tray of claim 1, further comprising a headrest (20), a backrest (21); the headrest (20) is installed on the upper portion of one side of the structure framework, and the backrest (21) is installed on the middle portion of the same side of the structure framework, is aligned with the central axis of the headrest and supports the waist and the back of a fireman.

4. Air respirator holder according to claim 1, characterized in that the spindle (17) is arranged concentrically to the tray (16).

5. A fire engine seat, characterized by comprising a seat body (1) and an air respirator holder according to any one of claims 1 to 4; the seat body (1) comprises a base (4), a bearing seat (10) is vertically arranged on the base (4), a rotating shaft (17) of the air respirator bracket is installed in the bearing seat (10) through an axial bearing (11), and the air respirator bracket rotates around the bearing seat (10) relative to the base.

6. A fire engine seat as claimed in claim 5, characterised in that the seat body (1) further comprises a coaming (5), a side backrest (6), a seat cushion (7); the seat cushion (7) is hinged to the front side of the base (4) and can be turned upwards along a hinged shaft;

the coaming (5) is fixedly connected and installed on the base (4) through a structural part, and the side backrest (6) is installed on two sides of the coaming (5) and provides support for two sides of the back of the body of a firefighter.

7. The air respirator bracket according to claim 6, characterized in that the upper inner side of the coaming (5) is provided with a guide assembly for laterally limiting the top of the air respirator bracket (2) so as to keep the air respirator bracket in a vertical state;

the lower end of the guide assembly is provided with a group of limiting rolling bearings, the top of the upper fixing plate (15) is provided with a guide rail (18) matched with the lower end of the guide assembly, and the guide rail (18) moves in the limiting rolling bearings of the guide assembly.

8. An air respirator bracket according to claim 7, wherein the guide assembly comprises a first guide assembly (8) and a second guide assembly (9), the second guide assembly (9) being arranged in the middle of the enclosure (5), and the first guide assembly (8) being arranged at the same level as the second guide assembly (9) and adjacent to the headrest side.

9. An air respirator bracket according to claim 5, wherein the fire engine seat further comprises a drive mechanism comprising a moving plate (22), a first fixed shaft (23), a moving shaft (24), a second fixed shaft (25), a return spring (26), a pull cord (27);

a fixing plate (12) for mounting a driving mechanism is connected to the base (4), and a long circular groove (1201) for mounting a moving shaft (24) is formed in the fixing plate (12);

one end of the movable plate (22) is hinged to the bottom of the air respirator bracket through a first fixed shaft (23), a first long round hole is formed in the middle of the movable plate (22), and the movable plate is movably mounted in a long round groove (1201) of the fixed plate (12) through a movable shaft (24); the other end of the movable plate (22) is provided with a second long round hole, the movable plate is installed on the fixed plate (12) through a second fixed shaft (25), the second fixed shaft (25) is located in the long round hole, and the movable plate (22) can move radially around the second fixed shaft (25);

one end of the pull rope (27) is connected with the moving shaft (24); one end of a return spring (26) is connected with the moving shaft (24), the other end of the return spring is fixed on the fixing plate (12), and the return spring (26) and the pull rope (27) are respectively positioned at two sides of the moving shaft (24).

10. An air respirator bracket according to claim 9, wherein the pull cord (27) is connected at its other end to a handle (28).

Technical Field

The invention belongs to the technical field of engineering machinery, and particularly relates to an air respirator bracket and a fire engine seat.

Background

An air respirator, also known as a gas storage type gas mask, generally comprises a compressed gas steel cylinder, braces, a mask and the like, and is mainly used as a personal breathing protection device for emergency rescue and fire extinguishing operation in the fields of fire fighting, chemical engineering and the like.

Along with the rapid development of cities, people live and work places gather more, surrounding traffic is more crowded, and the fire fighting truck has higher requirements on fire fighting rescue, needs to carry more fire-fighting equipment, and needs faster response speed for fire fighters. At present, a common air respirator is integrated with a firefighter seat, so that firefighters can quickly complete equipment wearing conveniently, and the space occupied by the air respirator in a vehicle is reduced.

However, the prior fire engine seat with the air respirator has the following problems: 1. the air respirator is stored at the rear part of the seat, so that the back of the seat is hollow, the back of a fireman is not supported, the seat is easy to fatigue after being taken for a long time, and the seat is very unfavorable for emergency rescue and disaster relief work. 2. Because air respirator specification is not of uniform size, big specification air respirator size is very high, often interferes with the seat headrest, and the access is inconvenient, influences the convenience of dress, is unfavorable for expandeing rescue work rapidly.

Disclosure of Invention

The purpose is as follows: in order to overcome the defects in the prior art, the invention provides an air respirator bracket and a fire engine seat.

The technical scheme adopted by the invention is as follows:

in a first aspect, an air respirator bracket is provided that includes a structural framework comprising a longitudinal support, an upper fixed plate, a lower fixed plate, a tray, a shaft;

the longitudinal support, the upper fixing plate and the lower fixing plate form a structural frame, the lower end of the longitudinal support is connected with a tray used for lifting the air respirator, the bottom of the tray is connected with a rotating shaft in the vertical direction and is used for being connected with a bearing seat of the base in a rotating mode, and the air respirator bracket rotates by taking the rotating shaft as a central shaft.

The air respirator bracket further comprises a clamping device, wherein the clamping device is fixedly arranged on the upper fixing plate and the lower fixing plate respectively from top to bottom, and at least one group of clamping mechanisms are arranged on the clamping device and used for clamping the air respirator.

The air respirator bracket also comprises a headrest and a backrest; the headrest is installed on one side upper portion of the structure framework, and the backrest is installed on the middle portion of the same side of the structure framework and aligned with the central axis of the headrest to support the waist and the back of a fireman.

The rotating shaft and the tray are arranged in a concentric manner.

In a second aspect, the invention also provides a fire engine seat comprising a seat body and the air respirator bracket described above. The seat body comprises a base, a bearing seat is vertically arranged on the base, and a rotating shaft of the air respirator bracket is installed in the bearing seat through an axial bearing, so that the air respirator bracket rotates around the bearing seat relative to the base.

The seat main body also comprises a coaming, a side backrest and a cushion; the cushion is hinged to the front side of the base and can be turned upwards along the hinged shaft;

the inner side of the upper part of the enclosing plate is provided with a guide assembly for realizing lateral limiting of the top of the air respirator bracket and keeping the air respirator bracket in a vertical state;

the lower end of the guide assembly is provided with a group of limiting rolling bearings, the top of the upper fixing plate is provided with a guide rail matched with the lower end of the guide assembly, and the guide rail moves in the limiting rolling bearings of the guide assembly.

Furthermore, the guide assembly comprises a first guide assembly and a second guide assembly, the second guide assembly is arranged in the middle of the enclosing plate, and the first guide assembly is arranged on the same horizontal plane of the second guide assembly and close to the headrest side.

In other embodiments, the guide rail can be arranged on the seat body, and the guide assembly is arranged on the air respirator bracket, so that the air respirator bracket can be laterally limited in the rotation process, and the air respirator bracket can be kept in a vertical state.

In some embodiments, the fire engine seat further comprises a drive mechanism comprising a movable plate, a first stationary shaft, a movable shaft, a second stationary shaft, a return spring, a pull cord;

the base is connected with a fixing plate for mounting a driving mechanism, and the fixing plate is provided with a long circular groove for mounting a moving shaft;

one end of the movable plate is hinged to the bottom of the air respirator bracket through a first fixed shaft, the middle of the movable plate is provided with a first long round hole, and the movable plate is movably arranged in the long round groove of the fixed plate through a movable shaft; the other end of the movable plate is provided with a second long round hole and is arranged on the fixed plate through a second fixed shaft, the second fixed shaft is positioned in the long round hole, and the movable plate can move radially around the second fixed shaft;

one end of the pull rope is connected with the movable shaft; one end of the reset spring is connected with the moving shaft, the other end of the reset spring is fixed on the fixing plate, and the reset spring and the pull rope are respectively positioned on two sides of the moving shaft.

Further, the other end of the pull rope is connected to the handle.

In other embodiments, the driving mechanism can also realize the rotation of the bracket through a four-bar linkage mechanism or gear-rack meshing.

Has the advantages that: compared with the prior art, the air respirator bracket and the fire engine seat provided by the invention have the following advantages:

(1) the rotatable bracket solves the problem of interference with the headrest when the respirator is taken and placed, when the respirator is stored, the headrest and the backrest rotate to the side, the respirator is completely prevented from being taken and placed, the headrest does not need to pitch greatly, the occupied space is small, and the structure is simple;

(2) the problem that the full backrest of the seat cannot be used after the respirator is stored is solved through the rotatable bracket, after the respirator is stored, the respirator bracket is rotated only by simple operation, the full backrest on the side surface of the respirator rotates to the front side, the effect the same as that of the automobile seat is achieved, and the riding comfort is greatly improved.

(3) The respirator is stored independently of two main functions of the seat backrest, function switching is realized through the rotating structure, conflict between the two functions is reduced, convenience of storage and wearing of the respirator is greatly improved, and more time is strived for rescue and relief work. Meanwhile, the multifunctional seat support provides more comprehensive support for the body, and passengers can have better rest on the emergency and disaster relief road, so that vigorous energy is provided for emergency and disaster relief. The passengers can have good rest after the rescue task is finished, and the health of rescue and relief personnel can be kept very well.

Drawings

FIG. 1 is a schematic structural view of an embodiment of a fire engine seat assembly;

FIG. 2 is a perspective view of an air respirator bracket of an embodiment;

FIG. 3 is an enlarged view of the upper guide rail of the fixed plate of the air respirator bracket of the embodiment;

FIG. 4 is a schematic structural view of a seat body of the embodiment;

FIG. 5 is an enlarged view of section I of FIG. 4;

FIG. 6 is an enlarged view of section II of FIG. 4;

FIG. 7 is a schematic structural view of a drive mechanism of the embodiment;

FIG. 8 is a vertical cross-sectional view of the fire engine seat of the embodiment;

FIG. 9 is an enlarged view of section III of FIG. 8;

FIG. 10 is an enlarged view of section IV of FIG. 8;

FIG. 11 is a schematic view showing a use state of both seat guards of the embodiment;

in the figure: seat main body 1: the device comprises a base 4, a coaming 5, a side backrest 6, a seat cushion 7, a first guide assembly 8, a second guide assembly 9, a bearing seat 10, an axial bearing 11, a fixing plate 12 and a long circular groove 1201;

air respirator bracket 2: the structure comprises a structure framework, a clamping device 14, a headrest 20 and a backrest 21, wherein the structure framework comprises a longitudinal support 13, an upper fixing plate 15, a lower fixing plate 19, a tray 16, a rotating shaft 17 and a guide rail 18;

the drive mechanism 3: a movable plate 22, a first fixed shaft 23, a movable shaft 24, a second fixed shaft 25, a return spring 26, a pull rope 27 and a handle 28.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.