CN116118833A

CN116118833A - Rescue trolley for escape pipeline

Info

Publication number: CN116118833A
Application number: CN202211738338.8A
Authority: CN
Inventors: 付崇砚; 姜栋; 李剑; 魏文辉; 王海亮; 任冬冬; 仉学利; 孙双全; 李小勇; 曹刚; 何伟; 辛慧
Original assignee: Tianjin Runmu Technology Co ltd
Current assignee: Tianjin Runmu Technology Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-05-16

Abstract

The invention discloses a rescue trolley for an escape pipeline, which relates to the technical field of escape and rescue, and comprises a trolley chassis, wheel support arms and a telescopic buffer mechanism for buffering between the trolley chassis and the wheel support arms, wherein the telescopic buffer mechanism comprises inclined stretching tension arms and transverse stretching tension arms, the inclined stretching tension arms between the wheel support arms with overlapped central axis directions are arranged in a crossed manner on the bottom surface of the trolley chassis, the inclined stretching tension arms arranged in the crossed manner are limited by connecting shafts, the wheel support arms with overlapped central axis directions are buffered by the transverse stretching tension arms, the outer walls of the wheel support arms and the outer walls of the transverse stretching tension arms are sleeved with elastic parts, one ends of the wheel support arms far away from the trolley chassis are rotatably provided with wheels, and the radial outer walls of the wheels are arranged in a bent manner. According to the invention, through the cooperation of the devices, the stability of the trolley in the running process can be effectively improved, the force leakage during jolt and pipeline collision can be realized, and the tipping risk of the rescue trolley is reduced.

Description

Rescue trolley for escape pipeline

Technical Field

The invention relates to the technical field related to escape and rescue, in particular to a rescue trolley for an escape pipeline.

Background

The pipeline escape trolley is rapid, can carry corresponding first-aid tools, and can strive for time for escape and rescue as much as possible.

The emergency rescue trolley used in the tunnel construction escape and rescue channel and described in the patent number CN215042912U is mainly applied to emergency use in the process of tunnel construction for emergency rescue, and the body of the emergency rescue trolley can be suitable for different pipeline environments through folding, so that the emergency rescue trolley is more flexible to use.

In consideration of the complex environment during emergency rescue and the radian inside a relatively narrow pipeline, the existing rescue trolley is designed with a chassis, jolt or impact when wheels meet the inner wall of a pipe body during rapid driving is caused, and the possibility that the rescue trolley is tipped over is caused, so that the emergency rescue trolley has certain potential safety hazards and is easy to stagnate.

Therefore, the rescue trolley for pipeline escape, which can cope with a complex rescue environment, particularly can reduce the overturning risk of the trolley as much as possible when wheels contact the inner wall of a pipeline, is provided to solve the problems.

Disclosure of Invention

The invention mainly aims to provide a rescue trolley for an escape pipeline, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a rescue dolly for pipeline of fleing, includes dolly chassis, wheel support arm and is used for the flexible buffer gear of buffering between dolly chassis and the wheel support arm.

The telescopic buffer structure comprises an inclined stretching tension arm and a transverse stretching tension arm, wherein the inclined stretching tension arm between wheel supporting arms with the overlapped central axis direction is arranged at the bottom surface of the chassis of the trolley in a crossing way, the inclined stretching tension arms which are arranged in a crossing way are limited by a connecting shaft, the wheel supporting arms with the overlapped central axis direction are buffered by the transverse stretching tension arm, and the outer walls of the wheel supporting arms and the outer walls of the transverse stretching tension arms are sleeved with elastic pieces.

One end of the wheel supporting arm far away from the chassis of the trolley is rotatably provided with a wheel, and the radial outer wall of the wheel is bent.

Preferably, the wheel supporting arm and the transverse stretching tension arm are of telescopic rod structures, and elastic pieces sleeved on the outer walls of the wheel supporting arm and the transverse stretching tension arm are used for resetting when the lengths of the wheel supporting arm and the transverse stretching tension arm are changed.

Preferably, the inclined tension arm consists of two movable rods, the ends of the two movable rods are rotationally connected through a directional rod, the directions of the two directional rods are perpendicular to the plane of the chassis of the trolley, one directional rod is fixedly connected with the bottom surface of the chassis of the trolley, and the other directional rod is fixedly connected with the rotating shaft of the wheel at the end of the wheel support arm.

Preferably, the end of the transversely extending tension arm is fixedly connected to the side of the orientation bar between the wheels.

Preferably, the middle part fixedly connected with supporting disk of wheel outer wall, the supporting disk is disc type structure, and the cover is established the inner wall of the outside tire of wheel and is laminated with the outer wall of supporting disk, and fixedly connected with backup pad between the side of supporting disk and the side of wheel, the side bending setting of backup pad.

Preferably, the plurality of support plates are distributed on the outer wall of the wheel in an annular equidistant manner, and the support plates distributed on two sides of the support plate are distributed in a crossed manner.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, through the inclined stretching tension arm and the transverse stretching force arm, the change of the relative position between the wheel and the trolley chassis can be realized when the wheel encounters impact, and the reduction of the impact force born by the trolley chassis can be realized as much as possible, the contact area between the outer wall of the wheel and the inner wall of the pipeline can be effectively reduced by utilizing the bending radian of the outer wall of the wheel, the static friction force between the wheel and the inner wall of the pipeline can be reduced as much as possible, so that the sliding friction is easier to occur between the wheel and the inner wall of the pipeline, the quick separation between the wheel and the inner wall of the pipeline is facilitated, and the overturning of the rescue trolley is avoided as much as possible when the wheel is impacted or is contacted with the inner wall of the pipeline.

Drawings

FIG. 1 is a perspective view of a rescue cart of the present invention;

FIG. 2 is a side view of the wheel structure of the present invention;

FIG. 3 is a side cross-sectional view of a wheel structure according to the present invention;

fig. 4 is a front view of the structure of the telescopic buffer mechanism of the present invention.

In the figure: 1. a trolley chassis; 2. a wheel support arm; 3. a tension arm is obliquely stretched; 4. a transversely extending tension arm; 5. a movable rod; 6. a directional rod; 7. a support plate; 71. and a support plate.

Detailed Description

The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly and include, for example, "connected," either fixedly, detachably, or integrally; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-4, the invention discloses a rescue trolley for an escape pipeline, which comprises a trolley chassis 1, a wheel supporting arm 2 and a telescopic buffer mechanism for buffering between the trolley chassis 1 and the wheel supporting arm 2.

The telescopic buffer structure comprises a tilting tension arm 3 and a transverse tension arm 4, wherein the tilting tension arm 3 and the transverse tension arm 4 can spatially meet the relative position change between the wheels and the trolley chassis 1, and can supplement the support between the wheels and the trolley chassis 1 through the wheel support arm 2, and in addition, the wheels and the trolley chassis 1 can be reset smoothly when the relative position change occurs between the wheels and the trolley chassis 1.

Further, the outer wall of the wheel supporting arm 2 and the outer wall of the transverse stretching tension arm 4 are sleeved with elastic pieces, the elastic pieces can be springs, and the springs can prolong the time when the length between the transverse stretching tension arm 4 and the wheel supporting arm 2 is changed as much as possible, so that the impact force of the trolley chassis 1 when the wheels are impacted can be reduced, and the running stability of the trolley chassis 1 is improved.

The inclined stretching tension arms 3 between the wheel supporting arms 2 with the coincident central axis directions are arranged on the bottom surface of the trolley chassis 1 in a crossing mode, the inclined stretching tension arms 3 arranged in the crossing mode are limited through connecting shafts, the wheel supporting arms 2 with the coincident central axis directions are buffered through the transverse stretching tension arms 4, and elastic pieces are sleeved on the outer walls of the wheel supporting arms 2 and the transverse stretching tension arms 4.

The connecting shaft can be of a traditional polygonal prism structure or a gear, when the connecting shaft is a gear, teeth are required to be arranged on the side face of the single movable rod 5, and the synchronous deflection between the adjacent inclined tension arms 3 is realized by utilizing the meshing between the gears.

The wheel is installed in the one end rotation that wheel support arm 2 kept away from dolly chassis 1, and the radial outer wall bending setting of wheel can reduce the area of contact of wheel outer wall and pipeline inner wall as far as possible, reduces the static friction between the two, makes both produce sliding friction as far as possible when contacting, and then realizes breaking away from fast between wheel and the pipeline inner wall.

The wheel supporting arm 2 and the transverse stretching tension arm 4 are of telescopic rod structures, and elastic pieces sleeved on the outer walls of the wheel supporting arm and the transverse stretching tension arm are used for resetting when the lengths of the wheel supporting arm and the transverse stretching tension arm are changed.

As shown in fig. 4, the inclined tension arm 3 is composed of two movable rods 5, the ends of the two movable rods 5 are rotatably connected through a directional rod 6, the directions of the two directional rods 6 are perpendicular to the plane of the trolley chassis 1, one directional rod 6 is fixedly connected with the bottom surface of the trolley chassis 1, and the other directional rod 6 is fixedly connected with the rotating shaft of the wheel at the end of the wheel support arm 2.

The directional rod 6 which is perpendicular to the chassis 1 of the trolley can utilize the parallelogram principle to avoid the original direction of the wheels from being changed as much as possible when the wheels are impacted, and can improve the stability of the rescue trolley during movement.

The end part of the transverse stretching tension arm 4 is fixedly connected with the side surface of the orientation rod 6 between the wheels.

The middle part fixedly connected with supporting disk 7 of wheel outer wall, supporting disk 7 is disc type structure, and the inner wall of the outside tire of wheel is established to the cover and the laminating of the outer wall of supporting disk 7.

Because the rescue environment is more complicated, the rubber tire which does not need to be inflated is preferably used, and the rubber tire can be of a circular ring structure, and although the shock resistance is lower than that of an inflated tire in the prior art, the stability in the more complicated rescue environment is higher, and the shape of the outer wall of the tire can be effectively changed through the support of the support disc 7, so that the effect of reducing the contact area between the tire and the inner wall of a pipeline is achieved.

Preferably, as shown in fig. 1-3, a supporting plate 71 is fixedly connected between the side surface of the supporting plate 7 and the side surface of the wheel, the side surface of the supporting plate 71 is bent, a plurality of supporting plates 71 are annularly and equidistantly distributed on the outer wall of the wheel, and the supporting plates 71 distributed on two sides of the supporting plate 7 are distributed in a crossed manner.

The setting of backup pad 71 can guarantee the gripping power of tire when the rescue dolly turns, prevents as far as possible that the skew from taking place when the rescue dolly turns to when the tire runs into the protruding of road surface, or when the bearing capacity of rescue dolly is great, the tire can produce certain sunken between adjacent backup pad 71, can further promote the gripping power of rescue dolly, makes the rescue dolly can travel with more stable gesture.

The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Rescue trolley for escape pipeline, its characterized in that: the device comprises a trolley chassis (1), a wheel supporting arm (2) and a telescopic buffer mechanism for buffering between the trolley chassis (1) and the wheel supporting arm (2);

the telescopic buffer structure comprises an inclined stretching tension arm (3) and a transverse stretching tension arm (4), wherein the inclined stretching tension arm (3) between the wheel supporting arms (2) with the coincident central axis directions is arranged at the bottom surface of the trolley chassis (1) in a crossing way, the inclined stretching tension arms (3) which are arranged in the crossing way are limited by connecting shafts, the wheel supporting arms (2) with the coincident central axis directions are buffered by the transverse stretching tension arm (4), and elastic pieces are sleeved on the outer walls of the wheel supporting arms (2) and the outer walls of the transverse stretching tension arms (4);

the wheel support arm (2) is far away from the one end of the trolley chassis (1) and is rotatably provided with a wheel, and the radial outer wall of the wheel is bent.

2. Rescue trolley for escape pipelines according to claim 1, characterized in that: the wheel supporting arm (2) and the transverse stretching tension arm (4) are of telescopic rod structures, and elastic pieces sleeved on the outer walls of the wheel supporting arm and the transverse stretching tension arm are used for resetting when the lengths of the wheel supporting arm and the transverse stretching tension arm are changed.

3. Rescue trolley for escape pipelines according to claim 1, characterized in that: the inclined tension arm (3) consists of two movable rods (5), the ends of the two movable rods (5) are rotationally connected through a directional rod (6), the direction of the two directional rods (6) is perpendicular to the plane of the trolley chassis (1), one directional rod (6) is fixedly connected with the bottom surface of the trolley chassis (1), and the other directional rod (6) is fixedly connected with the rotating shaft of the wheel at the end of the wheel support arm (2).

4. A rescue trolley for an escape line as claimed in claim 3, characterized in that: the end part of the transverse stretching tension arm (4) is fixedly connected with the side surface of the orientation rod (6) between the wheels.

5. Rescue trolley for escape pipelines according to claim 1, characterized in that: the middle part fixedly connected with supporting disk (7) of wheel outer wall, supporting disk (7) are disc type structure, and the cover is established the inner wall of the outside tire of wheel and is laminated with the outer wall of supporting disk (7), and fixedly connected with backup pad (71) between the side of supporting disk (7) and the side of wheel, the side bending setting of backup pad (71).

6. Rescue trolley for escape pipelines according to claim 5, characterized in that: the support plates (71) are annularly and equidistantly distributed on the outer wall of the wheel, and the support plates (71) distributed on two sides of the support disc (7) are distributed in a crossing mode.