阅读说明：本技术 一种残疾人靠背挡架装置 (Back rest blocking frame device for disabled people ) 是由 张云凤 王泽平 谢龙 秦森 刘娜 陈振 于 2019-10-10 设计创作，主要内容包括：本发明公开一种残疾人靠背挡架装置,包括一端安装在轮罩弧面的上固定支架和两组下固定支架,所述上固定支架设置在下固定支架斜上方,且上固定支架的套接有活动杆,贯穿所述上固定支架与活动杆的外壁连接有圆柱头螺栓,且圆柱头螺栓的外端焊接有固定圆柄,所述上固定支架和下固定支架的端部与轮罩弧面表面衔接处设置有不锈钢底座,且不锈钢底座与轮罩弧面之间连接有第二沉头螺栓；本发明一种残疾人靠背挡架装置,适用于站立人群和残疾人群,在非工作状态下,可以方便站立人群抓扶,在工作状态下方便了残疾人轮椅的停靠以及残疾人的抓扶,将残疾人区域隔开,保障了残疾人的乘车安全。(The invention discloses a backrest blocking frame device for disabled people, which comprises an upper fixing support and two groups of lower fixing supports, wherein one end of each upper fixing support is arranged on the arc surface of a wheel cover, the upper fixing support is arranged obliquely above the lower fixing supports, a movable rod is sleeved on the upper fixing support, a cylindrical head bolt is connected to the outer wall penetrating through the upper fixing support and the movable rod, a fixing round handle is welded to the outer end of the cylindrical head bolt, a stainless steel base is arranged at the joint of the end parts of the upper fixing support and the lower fixing supports and the surface of the arc surface of the wheel cover, and a second countersunk head bolt is connected between the stainless steel base and the arc surface of the wheel cover; the backrest blocking frame device for the disabled is suitable for standing people and disabled people, can be conveniently grabbed by the standing people in a non-working state, facilitates the parking of a wheelchair for the disabled and the grabbing of the disabled in a working state, separates the disabled area and ensures the riding safety of the disabled.)

1. A backrest blocking frame device for the disabled is characterized by comprising an upper fixing support (2) and two groups of lower fixing supports (3), wherein one end of each upper fixing support (2) is arranged on the arc surface of a wheel cover, the lower fixing support (3) is obliquely arranged above the upper fixing support (2), a movable rod (1) is sleeved on the upper fixing support (2), a cylindrical bolt (11) penetrates through the outer wall of the upper fixing support (2) and the outer wall of the movable rod (1), a fixing round handle (4) is welded at the outer end of the cylindrical bolt (11), a stainless steel base (5) is arranged at the joint of the end part of the upper fixing support (2) and the lower fixing support (3) and the arc surface of the wheel cover, a second countersunk head bolt (7) is connected between the stainless steel base (5) and the arc surface of the wheel cover, a backrest plate (10) is connected between the other ends of the upper fixing support (2) and the lower fixing support (3), sleeves (9) are arranged on the inner sides of the other ends of the upper fixing support (2) and the lower fixing support (3), a first countersunk bolt (6) is connected between the end part of the sleeve (9) penetrating through one ends of the upper fixing support (2) and the lower fixing support (3) and the side wall of the backrest plate (10), and a third countersunk bolt (8) is connected between the inner wall of the stainless steel base (5) penetrating through one ends of the upper fixing support (2) and the lower fixing support (3) and the inner wall of the upper fixing support (2) and the lower fixing support (3);

go up fixed bolster (2) and include two connecting rods one (12) and two connecting rods two (16) and a loop bar (15), two connecting rod one (12) welding is in one side of loop bar (15), two connecting rod two (12) welding is at the opposite side of loop bar (15), and the outside welding of loop bar (15) has two sets of parallel arrangement's internal thread cover (13), and is two sets of fixed bolster (3) all include a connecting rod three (17) down.

2. The backrest blocking frame device for the disabled according to claim 1, wherein the stainless steel bases (5) are provided with four groups, and the four groups of stainless steel bases (5) are respectively connected with the ends of the two second connecting rods (16) and the two third connecting rods (17).

3. The backrest blocking frame device for the disabled according to claim 1, wherein circular through holes matched with the sleeves (9) are formed in the end portions of the first connecting rods (12) and the third connecting rods (17), the sleeves (9) are clamped into the inner sides of the first connecting rods (12) and the third connecting rods (17) through the circular through holes, backing plates (14) are arranged at the end portions of the third connecting rods (17) and the second connecting rods (12), and holes for the first countersunk bolts (6) to penetrate through are formed in the center positions of the backing plates (14).

4. The backrest frame device for the disabled according to claim 1, wherein the upper fixing bracket (2) is fixedly connected with the backrest plate (10) through two first connecting rods (12), the upper fixing bracket (2) is fixedly connected with the arc surface of the wheel cover through two second connecting rods (16), and the two first connecting rods (12) and the two second connecting rods (16) are respectively welded on the same horizontal line at two sides of the loop bar (15).

5. The backrest blocking frame device for the disabled according to claim 1, wherein two sets of the lower fixing brackets (3) are fixedly connected with the arc surface of the wheel cover through a third connecting rod (17), the two sets of the lower fixing brackets (3) are arranged in parallel, and the length of the third connecting rod (17) is smaller than the sum of the lengths of the second connecting rod (16) and the first connecting rod (12).

6. The backrest blocking frame device for the disabled according to claim 1, wherein the movable rod (1) is arranged in an L shape, the diameter of one end of the movable rod (1) is smaller than that of the other end of the movable rod, the smaller diameter end of the movable rod (1) is sleeved into the inner side of the sleeve rod (15), four groups of circular inner screw holes are formed in the surface of the sleeve rod (15), two circular inner screw holes of the four groups are arranged on the same straight line, the distance between two groups of circular inner screw holes on the same straight line is equal to the distance between two groups of inner screw sleeves (13), and one end of the cylindrical bolt (11) extends into the circular inner screw holes from the inside of the inner screw sleeves (13) to be meshed with the inner wall of the inner screw holes.

7. The backrest frame device for the disabled according to claim 1, wherein the backrest frame device for the disabled is specifically installed by the following steps:

the method comprises the following steps: firstly, a loop bar (15) with a gap is selected, two connecting rods I (12) and two connecting rods II (16) are respectively welded on two sides of the loop bar (15), wherein each connecting rod I (12) and each connecting rod II (16) are positioned on the same straight line after being welded to form an upper fixed support (2), the sleeve (9) is arranged in circular through holes at the end parts of the two connecting rods I (12) and the two connecting rods III (17), a first countersunk head bolt (6) is installed in each sleeve (9), the end parts of the two first connecting rods (12) and the two third connecting rods (17) are welded and sealed by a backing plate (14), the end part of the first countersunk head bolt (6) penetrates out of the center of the backing plate (14), the first countersunk head bolt (6) and the back plate (10) are screwed and fixed, and two groups of internal thread sleeves (13) are welded outside the sleeve rod (15);

step two; the end parts of each connecting rod II (16) and each connecting rod III (17) are clamped into a stainless steel base (5), the inner walls of the stainless steel bases (5) and the inner walls of each connecting rod II (16) and each connecting rod III (17) are fixedly connected through a third countersunk head bolt (8), and the inner sides of the stainless steel bases (5) and the cambered surfaces of wheel covers of passenger cars are fixedly connected through second countersunk head bolts (7);

step three: four groups of circular inner screw holes are arranged on the movable rod (1), every two groups of circular inner screw holes are arranged on the same straight line, the distance between every two groups of circular inner screw holes is equal to the distance between two groups of internal screw thread sleeves (13), the distance between two groups of circular inner screw holes on the same straight line and the other group of circular inner screw holes on the same straight line is controlled to be one fourth of the perimeter of the cross section of the sleeve rod (15), meanwhile, two groups of circular inner screw holes on the same straight line are arranged at the position obliquely above the other group of circular inner screw holes on the same straight line, the movable rod (1) is sleeved into the sleeve rod (15), so that the two groups of circular inner screw holes on the same straight line arranged on the surface of the movable rod (1) are vertically overlapped with the positions of the two groups of internal screw thread sleeves (13), the cylindrical head bolt (11) is inserted into the screw thread sleeves (13), the fixed circular handle (4) is rotated to drive the cylindrical head bolt (11), until the cylindrical head bolt (11) is meshed with the inner wall of the circular inner screw hole, the installation of the whole device is completed.

Technical Field

The invention belongs to the field of passenger car accessories, and particularly relates to a blocking frame device, in particular to a backrest blocking frame device for disabled people.

Background

With the rapid development of national economy and the continuous improvement of the living standard of people, urban public transport becomes a focus of attention of people, the requirements of people on the riding safety, comfort, attractiveness and the like of urban buses are higher and higher, and many low-floor urban buses are provided with disability areas and need to be provided with disability area backrest blocking frames.

The structure that each passenger train producer adopted usually at present is that a handrail pole keeps off the frame and fixes the disabled person's back through four window seats, and this kind of structure is dead fixed, and under the condition that the space is little, the width is little, can not satisfy the disabled area spatial layout demand, and the too many unattractive of naked bolt and nut latch fitting, and current disabled person's back keeps off the frame security simultaneously lower, can not be better to the disabled person regional area of taking a bus and the crowd's of standing region of taking a bus region separate, whole effect nature is lower.

Disclosure of Invention

In order to overcome the technical problems, the invention aims to provide a backrest blocking frame device for the disabled, which can effectively solve the problems that the structure of the existing backrest blocking frame device for the disabled is fixed, and the space layout requirement of a disabled area cannot be met under the conditions of small space and small width; the exposed bolt-nut lock piece is too many and not beautiful, and the existing backrest blocking frame for the disabled is lower in safety, can not better separate the riding area of the disabled from the riding area of the standing people, and is lower in overall effectiveness.

The purpose of the invention can be realized by the following technical scheme:

a backrest blocking frame device for the disabled comprises an upper fixing support and two groups of lower fixing supports, wherein one end of the upper fixing support is arranged on the arc surface of a wheel cover, the upper fixing support is arranged obliquely above the lower fixing support, a movable rod is sleeved on the upper fixing support, a cylindrical head bolt is connected with the outer wall penetrating through the upper fixing support and the movable rod, a fixing round handle is welded at the outer end of the cylindrical head bolt, a stainless steel base is arranged at the joint of the end parts of the upper fixing support and the lower fixing support and the surface of the arc surface of the wheel cover, a second countersunk head bolt is connected between the stainless steel base and the arc surface of the wheel cover, a backrest plate is connected between the other ends of the upper fixing support and the lower fixing support, sleeves are arranged on the inner sides of the other ends of the upper fixing support and the lower fixing support, a first countersunk head bolt is connected between the end part of the sleeve penetrating through one ends of the upper, a third countersunk head bolt is connected between the inner wall of the stainless steel base penetrating through one end of the upper fixing support and one end of the lower fixing support and the inner walls of the upper fixing support and the lower fixing support;

go up the fixed bolster and include two connecting rods one and two connecting rods two and a loop bar, two connecting rod welding is in one side of loop bar, two the welding of two connecting rods is at the opposite side of loop bar, and the outside welding of loop bar has two sets of parallel arrangement's internal thread cover, and is two sets of the lower fixed bolster all includes a connecting rod three.

As a further scheme of the invention: the stainless steel bases are provided with four groups, and the four groups of stainless steel bases are respectively connected with the end parts of the two connecting rods II and the two connecting rods III.

As a further scheme of the invention: the round perforation that agrees with mutually with the sleeve is all seted up to the tip of every connecting rod one and every connecting rod three, and the sleeve goes into the inboard of every connecting rod one and every connecting rod three through round perforation card, and the tip of every connecting rod three and every connecting rod two all is provided with the backing plate, and the central point of backing plate puts to set up the hole that supplies first countersunk head bolt to wear out.

As a further scheme of the invention: the upper fixing support is fixedly connected with the backrest plate through two first connecting rods, the upper fixing support is fixedly connected with the wheel cover cambered surface through two second connecting rods, and the two first connecting rods and the two second connecting rods are respectively welded on the same horizontal line of the two sides of the loop bar.

As a further scheme of the invention: and the two groups of lower fixing supports are fixedly connected with the wheel cover cambered surface through a third connecting rod, the two groups of lower fixing supports are arranged in parallel, and the length of the third connecting rod is smaller than the sum of the lengths of the second connecting rod and the first connecting rod.

As a further scheme of the invention: the movable rod is arranged in an L shape, the diameter of one end of the movable rod is smaller than that of the other end of the movable rod, the end, with the smaller diameter, of the movable rod is sleeved into the inner side of the sleeve rod, four groups of circular inner threaded holes are formed in the surface of the sleeve rod, every two of the four groups of circular inner threaded holes are arranged on the same straight line, the distance between the two groups of circular inner threaded holes on the same straight line is equal to the distance between the two groups of inner threaded sleeves, and one end of a cylindrical head bolt extends into the circular inner threaded holes from the inside of the inner threaded sleeves to be meshed with.

As a further scheme of the invention: the special installation steps of the backrest blocking frame device for the disabled are as follows:

the method comprises the following steps: firstly, selecting a loop bar with a gap, respectively welding two first connecting rods and two second connecting rods on two sides of the loop bar, wherein each first connecting rod and each second connecting rod are positioned on the same straight line after welding to form an upper fixed support, arranging sleeves into circular through holes at the three end parts of the first connecting rods and the two second connecting rods, installing a first countersunk head bolt in each sleeve, welding and sealing the three end parts of the first connecting rods and the two third connecting rods by adopting backing plates, penetrating out the end part of the first countersunk head bolt from the central position of the backing plate, screwing and fixing the first countersunk head bolt and a back plate, and welding two groups of internal thread sleeves outside the loop bar;

step two; the end parts of each connecting rod II and each connecting rod III are clamped into a stainless steel base, the inner wall of the stainless steel base and the inner walls of each connecting rod II and each connecting rod III are fixedly connected through a third countersunk head bolt, and the inner side of the stainless steel base and the cambered surface of the wheel cover of the passenger car are fixedly connected through a second countersunk head bolt;

step three: four groups of circular inner screw holes are arranged on the movable rod, the four groups of circular inner screw holes are arranged on the same straight line in pairs, the distance between every two groups of circular inner screw holes is equal to the distance between two groups of inner screw sleeves, the distance between two groups of circular inner screw holes on the same straight line and the distance between two groups of circular inner screw holes on the same straight line are controlled to be one fourth of the circumference of the cross section of the sleeve rod, meanwhile, two groups of circular inner screw holes on the same straight line are arranged at the obliquely upper positions of the other group of circular inner screw holes on the same straight line, the movable rod is sleeved into the sleeve rod, the two groups of circular inner screw holes on the same straight line arranged on the surface of the movable rod are overlapped with the two groups of inner screw sleeves up and down, the cylindrical head bolt is inserted into the inner screw sleeves, the fixed round handle is rotated to drive the cylindrical head bolt until the cylindrical head is meshed, and finishing the installation of the whole device.

The invention has the beneficial effects that:

1. when the backrest blocking frame device for the disabled is in a working state, the fixed round handle is rotated to drive the cylindrical head bolt to be drawn out from the internal thread sleeve, the movable rod is clockwise rotated to a position which forms 90 degrees with the vertical direction, the movable rod is drawn out to a required position to ensure the space of a disabled area, meanwhile, the internal thread sleeve is aligned with the round internal thread hole on the surface of the movable rod, the fixed round handle is rotated to rotate the cylindrical bolt into the round internal thread hole on the surfaces of the internal thread sleeve and the movable rod, the position of the movable rod is fixed, so that the movable rod is in a horizontal state, the disabled can lean against the backrest plate when riding the wheelchair, grasp the movable rod with hands, keep the stability when riding the passenger car, meanwhile, the movable rod is utilized to separate the area where the disabled person is located from the area where the standing crowd is located, so that the safety of the disabled person is guaranteed, and the disabled person is prevented from being extruded by the standing crowd when riding;

2. when the movable rod is in a non-working state, the fixed round handle is rotated to drive the cylindrical head bolt to be drawn out of the internal thread sleeve, the movable rod is rotated anticlockwise from the horizontal direction to a position which is 90 degrees to the horizontal direction and then is pushed into an initial state in a non-aisle area, so that the other two groups of circular internal thread holes correspond to the positions of the internal thread sleeve, the cylindrical head bolt is rotated into the circular internal thread holes in the surfaces of the internal thread sleeve and the movable rod by utilizing the rotation of the fixed round handle, the position of the movable rod is fixed, the movable rod is in a vertical state, and at the moment, standing people can hold the movable rod by hands to avoid the falling condition caused by the shaking of vehicles;

3. whole disabled person's back keeps off a device and can use and disabled person also is applicable to ordinary crowd, it utilizes fixed bolster and lower fixed bolster to install in the wheel casing cambered surface of passenger train, the minimum effective area who has taken the passenger train inside, keep off a device for traditional disabled person's back, its security is higher, the practicality is stronger, wholly adopt stainless steel base cooperation second countersunk head bolt and the first countersunk head bolt of sleeve cooperation to fix with wheel casing cambered surface and back board respectively, wholly can dismantle, it is more convenient when changing, be fit for generally using widely.

Drawings

The invention will be further described with reference to the accompanying drawings.

Fig. 1 is an assembly view of a backrest blocking frame device for the disabled according to the present invention.

Fig. 2 is a structural view of an upper fixing bracket in the backrest frame blocking device for the disabled.

Fig. 3 is a structural view of a lower fixing bracket in the backrest blocking frame device for the disabled.

In figure 1, a movable rod; 2. an upper fixing bracket; 3. a lower fixed bracket; 4. fixing the round handle; 5. a stainless steel base; 6. a first countersunk bolt; 7. a second countersunk bolt; 8. a third countersunk bolt; 9. a sleeve; 10. a back board; 11. a cylindrical head bolt; 12. a first connecting rod; 13. an internal thread sleeve; 14. a base plate; 15. a loop bar; 16. a second connecting rod; 17. and a third connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. 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.

As shown in fig. 1-3, a backrest frame device for the disabled comprises an upper fixing support 2 and two sets of lower fixing supports 3, one end of the upper fixing support 2 is installed on the arc surface of a wheel cover, the upper fixing support 2 is arranged above the lower fixing support 3 in an inclined manner, a movable rod 1 is sleeved on the upper fixing support 2, a cylindrical bolt 11 is connected to the outer wall penetrating through the upper fixing support 2 and the movable rod 1, a fixing round handle 4 is welded to the outer end of the cylindrical bolt 11, a stainless steel base 5 is arranged at the joint of the end of the upper fixing support 2 and the lower fixing support 3 and the surface of the arc surface of the wheel cover, a second countersunk head bolt 7 is connected between the stainless steel base 5 and the arc surface of the wheel cover, a backrest plate 10 is connected between the other ends of the upper fixing support 2 and the lower fixing support 3, sleeves 9 are arranged on the inner sides of the other ends of the upper fixing support 2 and the lower fixing support 3, and a first countersunk head bolt 6 is connected between the end of the sleeve 9 penetrating through A third countersunk bolt 8 is connected between the inner wall of the stainless steel base 5 penetrating through one end of the upper fixing support 2 and one end of the lower fixing support 3 and the inner walls of the upper fixing support 2 and the lower fixing support 3, and the stainless steel base 5 is fixed between the upper fixing support 2 and the lower fixing support 3 by the third countersunk bolt 8;

go up fixed bolster 2 and include two connecting rods one 12 and two connecting rods two 16 and a loop bar 15, two connecting rods one 12 welds in one side of loop bar 15, two connecting rods two 16 welds in the opposite side of loop bar 15, and the outer weld of loop bar 15 has two sets of parallel arrangement's internal thread cover 13, and two sets of lower fixed bolsters 3 all include a connecting rod three 17.

Stainless steel base 5 is provided with four groups altogether, and four stainless steel bases 5 of group do not adopt stainless steel base 5 as the connection support with the tip of two connecting rods two 16 and two connecting rods three 17, avoid adopting traditional welding mode to fix and lead to dismantling inconvenient problem and appear.

The tip of every connecting rod one 12 and every connecting rod three 17 all seted up the circular perforation that agrees with mutually with sleeve 9, sleeve 9 blocks into the inboard of every connecting rod one 12 and every connecting rod three 17 through circular perforation, and the tip of every connecting rod three 17 and every connecting rod two 16 all is provided with backing plate 14, the central point of backing plate 14 puts and sets up the hole that supplies first countersunk bolt 6 to wear out, backing plate 14 carries out the confined in the tip of every connecting rod three 17 and every connecting rod two 16, made things convenient for the fixed of every connecting rod three 17 and every connecting rod two 16 and back board 10 lateral walls.

The upper fixing support 2 is fixedly connected with the backrest plate 10 through two first connecting rods 12, the upper fixing support 2 is fixedly connected with the arc surface of the wheel cover through two second connecting rods 16, and the two first connecting rods 12 and the two second connecting rods 16 are respectively welded on the same horizontal line at two sides of the loop bar 15.

Two sets of lower fixed bolster 3 all through connecting rod three 17 and wheel house cambered surface fixed connection, and two sets of lower fixed bolster 3 parallel arrangement, the length of connecting rod three 17 is less than the length sum of connecting rod two 16 and connecting rod one 12, and the length of lower fixed bolster 3 sets to the length that is less than last fixed bolster 2 to make back board 10 be in the state of slope after the installation, just in time can laminate with the wheelchair back of the disabled person, the berth of the wheelchair of being convenient for.

The movable rod 1 is the setting of L type, and the one end diameter of movable rod 1 is less than its other end diameter, the inboard of loop bar 15 is emboliaed to the one end of the less diameter of movable rod 1, and loop bar 15 surface has seted up four groups of circular interior screw holes, two liang of settings are on same straight line between four groups of circular interior screw holes, the interval that lies in between two sets of circular interior screw holes on same straight line equals with the interval between two sets of internal thread bush 13, the one end of cylinder head bolt 11 stretches into in the circular interior screw hole rather than the inner wall meshing from the inside of internal thread bush 13 and is connected, it is fixed through cylinder head bolt 11, thereby can fix the position of movable rod 1 under the different states, avoid its wobbling condition to appear.

The special installation steps of the backrest blocking frame device for the disabled are as follows:

the method comprises the following steps: firstly, selecting a loop bar 15 with a gap, respectively welding two connecting rods I12 and two connecting rods II 16 on two sides of the loop bar 15, wherein each connecting rod I12 and each connecting rod II 16 are positioned on the same straight line after welding to form an upper fixed support 2, arranging a sleeve 9 into circular through holes at the end parts of the two connecting rods I12 and the two connecting rods III 17, arranging a first countersunk head bolt 6 in each sleeve 9, welding and sealing the end parts of the two connecting rods I12 and the two connecting rods III 17 by using a backing plate 14, penetrating the end part of the first countersunk head bolt 6 out of the center position of the backing plate 14, screwing and fixing the first countersunk head bolt 6 and a back rest plate 10, and welding two groups of internal thread sleeves 13 outside the loop bar 15;

step two; the end parts of each connecting rod II 16 and each connecting rod III 17 are clamped into a stainless steel base 5, the inner walls of the stainless steel bases 5 and the inner walls of each connecting rod II 16 and each connecting rod III 17 are fixedly connected through a third countersunk head bolt 8, and the inner side of each stainless steel base 5 and the cambered surface of the wheel cover of the passenger car are fixedly connected through a second countersunk head bolt 7;

step three: four groups of circular inner screw holes are formed in the movable rod 1, the four groups of circular inner screw holes are arranged on the same straight line in pairs, the distance between every two groups of circular inner screw holes is equal to the distance between two groups of inner screw thread sleeves 13, the distance between two groups of circular inner screw holes on the same straight line and the distance between two groups of circular inner screw holes on the same straight line are controlled to be one fourth of the circumference of the cross section of the sleeve rod 15, meanwhile, the two groups of circular inner screw holes on the same straight line are arranged at the obliquely upper positions of the other two groups of circular inner screw holes on the same straight line, the movable rod 1 is sleeved into the sleeve rod 15, the two groups of circular inner screw holes on the same straight line formed in the surface of the movable rod 1 are overlapped with the two groups of inner screw thread sleeves 13 up and down, the cylindrical head bolt 11 is inserted into the inner screw thread sleeves 13, the fixed round handle 4 is rotated to drive the cylindrical head bolt 11 until the, and finishing the installation of the whole device.

The backrest blocking frame device for the disabled is characterized in that when the device is in a working state, the fixed round handle 4 is rotated to drive the cylindrical head bolt 11 to be drawn out from the inner thread sleeve 13, the movable rod 1 is rotated clockwise to be 90 degrees to the vertical direction, the movable rod is drawn out to a required position to ensure the space of a disabled area, the inner thread sleeve 13 is aligned with the circular inner threaded hole on the surface of the movable rod 1, the fixed round handle 4 is rotated to rotate the cylindrical head bolt 11 to be inserted into the circular inner threaded holes on the surfaces of the inner thread sleeve 13 and the movable rod 1, the position of the movable rod 1 is fixed, the movable rod 1 is in a horizontal state, the disabled can lean against the backrest plate 10 when riding a wheelchair and hold the movable rod 1 with hands to keep the stability when riding a passenger car, and the movable rod 1 is used for separating the area of the disabled from the area of a standing crowd, so that the safety of the disabled is guaranteed, the disabled person is prevented from being extruded by the standing people when riding the bus; when the device is in a non-working state, the fixed round handle 4 is rotated to drive the cylindrical head bolt 11 to be drawn out from the inner thread sleeve 13, the movable rod 1 is rotated anticlockwise to a position which is 90 degrees to the horizontal direction from the horizontal direction and then is pushed to an initial state in a non-aisle region, so that the other two groups of circular inner thread holes correspond to the positions of the inner thread sleeve 13, the fixed round handle 4 is rotated to rotate the cylindrical head bolt 11 into the circular inner thread holes on the surfaces of the inner thread sleeve 13 and the movable rod 1, the position of the movable rod 1 is fixed, the movable rod 1 is in a vertical state, and people standing at the moment can hold the movable rod 1 to avoid the falling condition caused by vehicle shaking; whole disabled person's back keeps off a device and can use and disabled person also can be applicable to ordinary crowd, it utilizes fixed bolster 2 and lower fixed bolster 3 to install in the wheel casing cambered surface of passenger train, the minimum effective area who has taken the passenger train inside, keep off a device for traditional disabled person's back, its security is higher, the practicality is stronger, wholly adopt stainless steel base 5 cooperation second countersunk head bolt 7 and sleeve 9 cooperation first countersunk head bolt 6 to fix with wheel casing cambered surface and back board 10 respectively, wholly can dismantle, it is more convenient when changing, and is suitable for generally using widely.

The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.