阅读说明：本技术 一种安全限高装置 (Safety height limiting device ) 是由 秦登科 于 2019-09-04 设计创作，主要内容包括：本发明涉及限高装置技术领域,具体涉及一种安全限高装置,包括第一立架、第二立架以及限高杆；所述限高杆与第一立架转动连接；所述限高杆滑动设于横柱；所述第一缓冲机构包括设于左立柱内的油缸；所述油缸包括缸体、塞杆以及泄压阀；所述第一缓冲机构还包括第一钢丝绳；所述第一钢丝绳的一端与活塞杆连接；所述第一钢丝绳的另一端与限高杆的另一端连接。本发明通过设置油缸,通过泄压阀控制缸体内的压力,从而缓冲车辆撞击限高杆的冲击力,并且由于油缸通过第一钢丝绳与限高杆的另一端连接,油缸能够根据第一钢丝绳拉动活塞杆位移的距离,从而通过泄压阀控制缸体内的压力,能够使得限高杆任何时候都不会从横柱上掉落造成人员伤亡。(The invention relates to the technical field of height limiting devices, in particular to a safety height limiting device which comprises a first vertical frame, a second vertical frame and a height limiting rod, wherein the first vertical frame is connected with the second vertical frame through a first connecting rod; the height limiting rod is rotationally connected with the first vertical frame; the height limiting rod is slidably arranged on the transverse column; the first buffer mechanism comprises an oil cylinder arranged in the left upright post; the oil cylinder comprises a cylinder body, a plug rod and a pressure release valve; the first buffer mechanism further comprises a first steel wire rope; one end of the first steel wire rope is connected with the piston rod; the other end of the first steel wire rope is connected with the other end of the height limiting rod. The pressure relief valve is arranged on the cylinder body, the pressure in the cylinder body is controlled through the pressure relief valve, so that the impact force of a vehicle impacting the height limiting rod is buffered, the cylinder is connected with the other end of the height limiting rod through the first steel wire rope, the cylinder can pull the piston rod to move according to the first steel wire rope, the pressure in the cylinder body is controlled through the pressure relief valve, and the height limiting rod cannot fall off from the cross column at any time to cause casualties.)

1. A safety limit for height device which characterized in that: comprises a first vertical frame (1), a second vertical frame (2) and a height limiting rod (3); the second vertical frame (2) comprises a left upright post (21), a right upright post (22) and a cross post (23) arranged between the left upright post (21) and the right upright post (22); one end of the height limiting rod (3) is rotatably connected with the first vertical frame (1); the other end of the height limiting rod (3) is slidably arranged at the top of the cross column (23);

the safety height limiting device also comprises a first buffer mechanism; the first buffer mechanism comprises an oil cylinder arranged in the left upright post (21); the oil cylinder comprises a cylinder body (41) fixed in the left upright post (21), a piston rod (42) movably arranged in the cylinder body (41) and a pressure release valve (43) communicated with the cylinder body (41); the first buffer mechanism further comprises a first steel wire rope (44); one end of the first steel wire rope (44) is connected with the piston rod (42); the other end of the first steel wire rope (44) is connected with the other end of the height limiting rod (3).

2. A safety height limiting device according to claim 1, wherein: the number of the first steel wire ropes (44) is two; the piston rod (42) is connected with a push plate (45); one ends of the two first steel wire ropes (44) are respectively connected to two sides of the push plate (45); the other ends of the two first steel wire ropes (44) are connected with the other end of the height limiting rod (3).

3. A safety height limiting device according to claim 1, wherein: the top of the left upright post (21) is provided with a first pulley (46); one end of the first steel wire rope (44) is connected with the piston rod (42); the other end of the first steel wire rope (44) is connected with the other end of the height limiting rod (3) after passing through a first pulley (46).

4. A safety height limiting device according to claim 1, wherein: a rotating shaft (11) is rotatably arranged in the middle of the first vertical frame (1); one end of the height limiting rod (3) is connected with the rotating shaft (11).

5. A safety height limiting device according to claim 1, wherein: the safety height limiting device also comprises a second buffer mechanism;

the second buffer mechanism comprises a first damping piece arranged in the first vertical frame (1), a second damping piece arranged in the left upright post (21) and a second steel wire rope (5) penetrating through the height limiting rod (3); one end of the second steel wire rope (5) is connected with the first damping part; the other end of the second steel wire rope (5) penetrates through the height limiting rod (3) and then is connected with the second damping part.

6. A safety height limiting device according to claim 5, wherein: the first damping part comprises a plurality of first iron rings (71) which are sequentially buckled; the second damping piece comprises a plurality of second iron rings (72) which are sequentially buckled; the first vertical frame (1) and the left vertical column (21) are respectively provided with a first fixing column (61) and a second fixing column (62); the first iron ring (71) at the bottommost part is fixedly connected with the first fixing column (61); the first iron ring (71) at the top is connected with one end of a second steel wire rope (5); the second iron ring (72) at the bottommost part is fixedly connected with the second fixing column (62); the second iron ring (72) at the top is connected with the other end of the second steel wire rope (5).

7. A safety height limiting device according to claim 5, wherein: the bottoms of the two ends of the height limiting rod (3) are provided with second pulleys (51); the second steel wire rope (5) is arranged on the pulley.

8. A safety height limiting device according to claim 5, wherein: the height limiting rod (3) comprises a left pipe (31), a right pipe (32) and a reinforcing pipe (33) arranged between the left pipe (31) and the right pipe (32); the number of the second steel wire ropes (5) is two; the two second steel wire ropes (5) are respectively arranged at the bottom of the left pipe (31) and the bottom of the right pipe (32).

Technical Field

The invention relates to the technical field of height limiting devices, in particular to a safety height limiting device.

Background

The traffic safety facilities play an important role in guaranteeing driving safety and reducing the degree of potential accidents, a good safety facility system has multiple functions of traffic management, safety protection, traffic guidance, isolation and sealing, glare prevention and the like, and the height limiting device also belongs to one of the traffic safety facilities.

The height limiting device is a traffic facility for limiting the passing of a high-altitude vehicle, the existing height limiting rod is generally formed by welding a steel frame structure with the height close to the limited height value and a vertical frame, and the height limiting rod and the vertical frame are easily subjected to overlarge stress to break when the vehicle collides, so that the height limiting rod falls off, and casualties are caused.

Disclosure of Invention

The invention aims to provide a safety height limiting device aiming at the defects in the prior art.

The purpose of the invention is realized by the following technical scheme: a safety height limiting device comprises a first vertical frame, a second vertical frame and a height limiting rod; the second vertical frame comprises a left vertical column, a right vertical column and a cross column arranged between the left vertical column and the right vertical column; one end of the height limiting rod is rotatably connected with the first vertical frame; the other end of the height limiting rod is slidably arranged at the top of the transverse column;

the safety height limiting device also comprises a first buffer mechanism; the first buffer mechanism comprises an oil cylinder arranged in the left upright post; the oil cylinder comprises a cylinder body fixed in the left upright post, a piston rod movably arranged in the cylinder body and a pressure release valve communicated with the cylinder body; the first buffer mechanism further comprises a first steel wire rope; one end of the first steel wire rope is connected with the piston rod; the other end of the first steel wire rope is connected with the other end of the height limiting rod.

The invention is further provided that the number of the first steel wire ropes is two; the piston rod is connected with a push plate; one ends of the two first steel wire ropes are respectively connected to the two sides of the push plate; the other ends of the two first steel wire ropes are connected with the other end of the height limiting rod.

The invention is further provided that the top of the left upright post is provided with a first pulley; one end of the first steel wire rope is connected with the piston rod; the other end of the first steel wire rope is connected with the other end of the height limiting rod after passing through the first pulley.

The invention is further provided that the middle part of the first vertical frame is rotatably provided with a rotating shaft; one end of the height limiting rod is connected with the rotating shaft.

The invention is further configured that the safety height limiting device further comprises a second buffer mechanism;

the second buffer mechanism comprises a first damping piece arranged in the first vertical frame, a second damping piece arranged in the left vertical frame and a second steel wire rope penetrating through the height limiting rod; one end of the second steel wire rope is connected with the first damping part; and the other end of the second steel wire rope penetrates through the height limiting rod and then is connected with the second damping part.

The invention is further provided that the first damping part comprises a plurality of first iron rings which are sequentially buckled; the second damping piece comprises a plurality of second iron rings which are sequentially buckled; the first vertical frame and the left vertical column are respectively provided with a first fixing column and a second fixing column; the first iron ring at the bottommost part is fixedly connected with the first fixing column; the first iron ring at the top is connected with one end of a second steel wire rope; the second iron ring at the bottommost part is fixedly connected with the second fixing column; the second iron ring at the top is connected with the other end of the second steel wire rope.

The invention is further provided that the bottoms of the two ends of the height limiting rod are provided with second pulleys; the second steel wire rope is arranged on the pulley.

The invention is further provided that the height limiting rod comprises a left tube, a right tube and a reinforcing tube arranged between the left tube and the right tube; the number of the second steel wire ropes is two; the two second steel wire ropes are respectively arranged at the bottom of the left pipe and the bottom of the right pipe.

The invention has the beneficial effects that: the pressure relief valve is arranged on the cylinder body, the pressure in the cylinder body is controlled through the pressure relief valve, so that the impact force of a vehicle impacting the height limiting rod is buffered, the cylinder is connected with the other end of the height limiting rod through the first steel wire rope, the cylinder can pull the piston rod to move according to the first steel wire rope, the pressure in the cylinder body is controlled through the pressure relief valve, and the height limiting rod cannot fall off from the cross column at any time to cause casualties.

Drawings

The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.

FIG. 1 is a front view of the present invention;

FIG. 2 is a top plan view of the present invention prior to impact;

FIG. 3 is a top plan view of the present invention after impact;

FIG. 4 is a cross-sectional view AA' of FIG. 1;

FIG. 5 is a schematic illustration of FIG. 4 after a crash;

FIG. 6 is a schematic view of the structure of the cylinder of the present invention;

FIG. 7 is a view of BB' in FIG. 2;

wherein: 1-a first stand; 11-a rotating shaft; 2-a second vertical frame; 21-left upright post; 22-right upright post; 23-a transverse column; 3-a height limiting rod; 31-left tube; 32-right tube; 33-a reinforced tube; 41-cylinder body; 42-a piston rod; 43-a pressure relief valve; 44-a first steel cord; 45-push plate; 46-a first pulley; 5-a second steel wire rope; 51-a second pulley; 61-a first fixed column; 62-a second fixed column; 71-a first iron ring; 72-second iron ring.

Detailed Description

The invention is further described with reference to the following examples.

As can be seen from fig. 1 to 7; the safety height limiting device comprises a first vertical frame 1, a second vertical frame 2 and a height limiting rod 3; the second vertical frame 2 comprises a left upright post 21, a right upright post 22 and a cross post 23 arranged between the left upright post 21 and the right upright post 22; one end of the height limiting rod 3 is rotatably connected with the first vertical frame 1; the other end of the height limiting rod 3 is slidably arranged at the top of the cross column 23;

the safety height limiting device also comprises a first buffer mechanism; the first buffer mechanism comprises an oil cylinder arranged in the left upright post 21; the oil cylinder comprises a cylinder body 41 fixed in the left upright post 21, a piston rod 42 movably arranged in the cylinder body 41 and a pressure release valve 43 communicated with the cylinder body 41; the first buffer mechanism further comprises a first wire rope 44; one end of the first steel wire rope 44 is connected with the piston rod 42; the other end of the first steel wire rope 44 is connected with the other end of the height limiting rod 3.

Specifically, in the safety height-limiting device according to the embodiment, in the initial state, the other end of the height-limiting rod 3 is disposed at one end of the cross column 23 close to the left upright post 21, the piston rod 42 is disposed at the bottom of the cylinder 41, and the first wire rope 44 is in a tensioned state, when a vehicle collides with the height-limiting rod 3, one end of the height-limiting rod 3 rotates along the first upright 1, and the other end of the height-limiting rod 3 slides on the cross column 23; the piston rod 42 is driven to move upwards by the first steel wire rope 44 in the process of sliding the other end of the height limiting rod 3; the pressure release valve 43 of this embodiment can thereby reduce the pressure in the cylinder body 41 according to the distance that piston rod 42 removed to cushion the impact force of vehicle striking limit for height pole 3, and because the hydro-cylinder is connected with the other end of limit for height pole 3 through first wire rope 44, the hydro-cylinder can be according to the distance that first wire rope 44 pulling piston rod 42 displaced, thereby through the pressure in the pressure release valve 43 control cylinder body 41, can make limit for height pole 3 can not drop from spreader 23 at any time and cause casualties.

In the safety height limiting device according to this embodiment, the number of the first steel wire ropes 44 is two; the piston rod 42 is connected with a push plate 45; one ends of the two first steel wire ropes 44 are respectively connected to two sides of the push plate 45; the other ends of the two first steel wire ropes 44 are connected with the other end of the height limiting rod 3.

Specifically, the stability of the connection of the other end of the height limit rod 3 with the piston rod 42 can be further enhanced by the above arrangement.

In the safety height-limiting device of this embodiment, the top of the left upright post 21 is provided with a first pulley 46; one end of the first steel wire rope 44 is connected with the piston rod 42; the other end of the first wire rope 44 is connected with the other end of the height limiting rod 3 after passing through the first pulley 46. By arranging the first pulley 46 on the top of the left upright post 21, the first cable 44 can be guided when the other end of the height limiting rod 3 slides on the cross post 23.

In the safety height limiting device of this embodiment, a rotating shaft 11 is rotatably arranged in the middle of the first vertical frame 1; one end of the height limiting rod 3 is connected with the rotating shaft 11. The above arrangement facilitates rotation on the first stand 1 at one end of the height-limiting rod 3.

In the safety height limiting device according to this embodiment, the safety height limiting device further includes a second buffering mechanism;

the second buffer mechanism comprises a first damping piece arranged in the first vertical frame 1, a second damping piece arranged in the left upright post 21 and a second steel wire rope 5 penetrating through the height limiting rod 3; one end of the second steel wire rope 5 is connected with the first damping part; the other end of the second steel wire rope 5 penetrates through the height limiting rod 3 and then is connected with the second damping part.

Specifically, because second wire rope 5 wears to establish in the axial direction of limit for height pole 3 to the both ends of second wire rope 5 are fixed respectively on the first damping piece in first grudging post 1 and on the second damping piece in the left stand 21, so when the vehicle collision limit for height pole 3, when limit for height pole 3 moved on spreader 23, owing to receive the energy storage effect of second wire rope 5 and first damping piece, second damping piece, can restrict the displacement distance of limit for height pole 3, thereby further prevent that limit for height pole 3 fracture or drop from second grudging post 2 thereby to pounding passerby.

In the safety height limiting device according to this embodiment, the first damping member includes a plurality of first iron rings 71 fastened in sequence; the second damping part comprises a plurality of second iron rings 72 which are sequentially buckled; the first vertical frame 1 and the left vertical column 21 are respectively provided with a first fixing column 61 and a second fixing column 62; the first iron ring 71 at the bottommost part is fixedly connected with the first fixing column 61; the first iron ring 71 at the top is connected with one end of the second steel wire rope 5; the second iron ring 72 at the bottommost part is fixedly connected with the second fixing column 62; the second iron ring 72 at the top is connected to the other end of the second wire rope 5.

Specifically, the first iron rings 71 and the second iron rings 72 are both iron rings with certain elastic deformation capacity, and in an initial state, under the action of the second steel wire rope 5, the plurality of first iron rings 71 are in a tensioned state and the plurality of second iron rings 72 are in a tensioned state; when the vehicle collides with the height-limiting rod 3, the first iron ring 71 and the second iron ring 72 are elastically deformed to further buffer the impact force of the vehicle striking the height-limiting rod 3, so as to prevent the height-limiting rod 3 from falling.

In the safety height limiting device of this embodiment, the bottom parts of the two ends of the height limiting rod 3 are both provided with the second pulleys 51; the second steel wire rope 5 is arranged on the pulley. The above arrangement can guide the second wire rope 5.

In the safety height-limiting device of this embodiment, the height-limiting rod 3 includes a left tube 31, a right tube 32, and a reinforcing tube 33 disposed between the left tube 31 and the right tube 32; the number of the second steel wire ropes 5 is two; the two second steel wire ropes 5 are respectively arranged at the bottom of the left pipe 31 and the bottom of the right pipe 32. The above arrangement can enhance the stability of the connection of the first iron ring 71 and the second iron ring 72.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.