CN214061264U

CN214061264U - Telescopic device of highway bridge guardrail rod

Info

Publication number: CN214061264U
Application number: CN202023205540.3U
Authority: CN
Inventors: 宋书昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2021-08-27
Anticipated expiration: 2030-12-26

Abstract

The utility model discloses a telescopic device of a highway bridge guardrail rod, which relates to the technical field of highway bridge guardrail rods and comprises a base, a telescopic mechanism and a damping and buffering mechanism, wherein both sides of the top end of the base are connected with fixed columns, the inner walls of the fixed columns are connected with supporting columns, a plurality of guardrail rods are connected at the middle positions of the supporting columns, and a plurality of telescopic rods are arranged at the bottom ends of the guardrail rods and positioned at the top ends of the fixed columns; wherein, telescopic machanism is including being located the handle of fixed column one side. The utility model discloses a set up telescopic machanism, when using bridge railing, drive the driving gear through the handle and rotate, the lead screw drives the support column at the inner wall of fixed column height-adjusting that makes progress under the effect of power, and the gyro wheel rolls in the outer wall both sides of support column simultaneously, and the telescopic link is stretched under the effect of atress this moment, and this process can be effectively according to actual demand highly adjusting bridge railing.

Description

Telescopic device of highway bridge guardrail rod

Technical Field

The utility model relates to a public road bridge roof beam guardrail bar technical field specifically is a telescoping device of public road bridge roof beam guardrail bar.

Background

The highway bridge engineering refers to the whole working height of the highway, such as planning, designing, constructing, maintaining, repairing and the like of structures crossing water areas, valleys and all traffic channels. In deep valley areas with large height difference or across other traffic lines, bridges need to be erected for keeping smooth traffic, and in busy urban areas, elevated roads composed of viaducts are sometimes required to be arranged. The side mountain road or road side road or road side road or road side road or road side road or road side road or road side road or road side road or road side road or road.

But current bridge guardrail bar telescoping device structure is comparatively single, can't be according to the better altitude mixture control that carries on of user demand, and stability is relatively poor, and its anticollision effect is not good at the in-process that uses simultaneously, easily takes place the condition such as fracture, drops to can influence telescoping device's life, increased the maintenance cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that the structure of the existing telescopic device is single, the stability is poor and the anti-collision effect is poor, and the service life of the telescopic device is shortened, the telescopic device of the highway bridge guardrail rod is provided.

In order to achieve the above object, the utility model provides a following technical scheme: a telescopic device of a highway bridge guardrail rod comprises a base, a telescopic mechanism and a damping and buffering mechanism, wherein two sides of the top end of the base are connected with fixed columns, the inner walls of the fixed columns are connected with supporting columns, a plurality of guardrail rods are connected to the middle positions of the supporting columns, and a plurality of telescopic rods are arranged at the bottom ends of one guardrail rod and positioned at the top ends of the fixed columns;

the telescopic mechanism comprises a handle located on one side of the fixed column, a driving gear is arranged at one end of the handle, a driven gear is arranged on one side of the driving gear, a lead screw is connected to the inside of the driven gear and the bottom end of the inner wall penetrating through the support column, the telescopic mechanism further comprises idler wheels located on the outer walls of two sides of the support column, and a mounting frame is arranged on the inner wall of each idler wheel and located inside the fixed column.

Preferably, damping and buffering mechanism is including being located the inside fixed block of base, the both sides of a fixed block are connected with the connecting rod No. one, one side of a connecting rod is provided with the connecting block, the bottom of connecting block is provided with the slider, damping and buffering mechanism is still including being located No. two connecting rods that the connecting block opposite side is connected, the one end of No. two connecting rods is connected with No. two fixed blocks, the connecting plate is installed to the bottom of No. two fixed blocks, the top of connecting plate and the inner wall that is located the base are provided with a plurality of damping spring.

Preferably, the driving gear is meshed with the driven gear, and the inner wall of the supporting column is provided with an internal thread matched with the screw rod.

Preferably, the mounting frame is rotatably connected with the roller through a rotating shaft and a bearing.

Preferably, a connecting rod, No. two connecting rods are the W type, the inner wall of base is provided with the spout with slider assorted.

Preferably, the first connecting rod is movably connected with the connecting block through a rotating shaft and a bearing, and the connecting block is movably connected with the second connecting rod through a rotating shaft and a bearing.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up telescopic machanism, when using bridge railing, drive the driving gear through the handle and rotate, the lead screw drives the support column and adjusts the height upwards at the inner wall of fixed column under the effect of power, the gyro wheel rolls in the outer wall both sides of support column simultaneously, the telescopic link stretches under the effect of atress this moment, this process can be effectively according to actual demand to bridge railing height adjustment;

2. the utility model discloses a set up shock attenuation buffer gear, when the guardrail received external striking, drive the slider at this moment under the effect of connecting rod and carry out reverse movement at the inner wall of the base, simultaneously through No. two fixed blocks to damping spring produce the extrusion force, the impact force that produces when the striking that can effectively will receive offsets to can effectively play the cushioning effect.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial enlarged view of the point A of the present invention;

fig. 3 is a schematic view of the internal structure of the base of the present invention.

In the figure: 1. a base; 2. fixing a column; 3. a support pillar; 4. guard rails; 5. a telescopic rod; 6. a handle; 7. a driving gear; 8. a driven gear; 9. a screw rod; 10. a roller; 11. a mounting frame; 12. a first fixed block; 13. a first connecting rod; 14. connecting blocks; 15. a slider; 16. a second connecting rod; 17. a second fixed block; 18. a connecting plate; 19. a shock absorbing spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention according to its overall structure.

Referring to fig. 1-3, a telescopic device for highway bridge guardrail rods comprises a base 1, a telescopic mechanism and a damping and buffering mechanism, wherein two sides of the top end of the base 1 are connected with fixed columns 2, the inner walls of the fixed columns 2 are connected with supporting columns 3, a plurality of guardrail rods 4 are connected to the middle positions of the supporting columns 3, and a plurality of telescopic rods 5 are arranged at the bottom ends of the guardrail rods 4 and positioned at the top ends of the fixed columns 2;

wherein, telescopic machanism is provided with driving gear 7 including the handle 6 that is located fixed column 2 one side, the one end of handle 6, and one side of driving gear 7 is provided with driven gear 8, and driven gear 8's inside and the inner wall bottom that runs through to support column 3 are connected with lead screw 9, and telescopic machanism is still including the gyro wheel 10 that is located the outer wall of 3 both sides of support column, and the inner wall of gyro wheel 10 is provided with mounting bracket 11 in the inside that is located fixed column 2.

Please refer to fig. 3 heavily, the shock absorption and buffering mechanism includes a first fixed block 12 located inside the base 1, two sides of the first fixed block 12 are connected with a first connecting rod 13, one side of the first connecting rod 13 is provided with a connecting block 14, the bottom end of the connecting block 14 is provided with a sliding block 15, the shock absorption and buffering mechanism further includes a second connecting rod 16 located at the other side of the connecting block 14, one end of the second connecting rod 16 is connected with a second fixed block 17, the bottom end of the second fixed block 17 is provided with a connecting plate 18, the top end of the connecting plate 18 and the inner wall located on the base 1 are provided with a plurality of shock absorption springs 19, so that the shock absorption and buffering mechanism can effectively counteract the impact force when the device is impacted, and further improve the buffering effect.

Please refer to fig. 1, the driving gear 7 is engaged with the driven gear 8, and the inner wall of the supporting column 3 is provided with an internal thread matched with the screw rod 9, so that the screw rod 9 is driven to rotate on the inner wall of the supporting column 3 under the power of the driven gear 8.

Please refer to fig. 2, the roller 10 is rotatably connected to the mounting frame 11 through a shaft and a bearing, so that the friction force can be effectively reduced through the bearing, and the service life can be prolonged.

Please refer to fig. 3, the first connecting rod 13 and the second connecting rod 16 are W-shaped, which further improves the stability of the device, and the inner wall of the base 1 is provided with a sliding slot matched with the sliding block 15, so that the sliding block 15 can slide on the inner wall of the base 1 under the action of stress.

Please refer to fig. 3, the first connecting rod 13 is movably connected to the connecting block 14 through a rotating shaft and a bearing, and the connecting block 14 is movably connected to the second connecting rod 16 through a rotating shaft and a bearing, so that the first connecting rod 13 and the second connecting rod 16 are driven to rotate through the rotating shaft, thereby generating a damping force.

The working principle is as follows: when the bridge guardrail is used, firstly, the base 1 is fixed on the side face of a roadbed, at the moment, the driving gear 7 is driven to rotate through the handle 6, when the driving gear 7 is meshed with the driven gear 8, the screw rod 9 is driven to rotate under the action of power, at the moment, the screw rod 9 rotates on the inner wall of the support column 3, so that the support column 3 is driven to upwards adjust the height on the inner wall of the fixed column 2, at the same time, under the connecting action of the mounting rack 11, the roller 10 rolls on the two sides of the outer wall of the support column 3, so that the friction force in the adjusting process is reduced, the service life of the bridge guardrail can be effectively prolonged, at the moment, the telescopic rod 5 stretches under the action of stress, the process can effectively adjust the height of the bridge guardrail according to the actual requirement, and when the guardrail is impacted by the outside, at the moment, the connecting block 14 can drive the slide block 15 to reversely move on the inner wall of the matched sliding chute of the base 1 under the action of the connecting rod 13, meanwhile, under the connecting action of the second connecting rod 16, the second fixing block 17 drives the connecting plate 18 to generate extrusion force on the damping spring 19, and impact force generated during impact can be effectively offset under the elastic action of the damping spring 19, so that the buffer effect can be effectively realized.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a telescoping device of public road bridge roof beam guardrail bar, includes base (1), telescopic machanism and shock attenuation buffer gear, its characterized in that: two sides of the top end of the base (1) are connected with fixing columns (2), the inner walls of the fixing columns (2) are connected with supporting columns (3), a plurality of guardrail rods (4) are connected to the middle positions of the supporting columns (3), and a plurality of telescopic rods (5) are arranged at the bottom ends of the guardrail rods (4) and located at the top ends of the fixing columns (2);

the telescopic mechanism comprises a handle (6) located on one side of a fixing column (2), a driving gear (7) is arranged at one end of the handle (6), a driven gear (8) is arranged on one side of the driving gear (7), a lead screw (9) is connected to the inner portion of the driven gear (8) and the bottom end of the inner wall penetrating through the supporting column (3), the telescopic mechanism further comprises rollers (10) located on the outer walls of the two sides of the supporting column (3), and a mounting frame (11) is arranged on the inner wall of each roller (10) and located inside the fixing column (2).

2. The telescopic device of a road bridge guardrail bar of claim 1, wherein: damping buffer gear is including being located inside fixed block (12) of base (1), the both sides of fixed block (12) are connected with connecting rod (13) No. one, one side of connecting rod (13) is provided with connecting block (14), the bottom of connecting block (14) is provided with slider (15), damping buffer gear is still including being located connecting rod (16) No. two that connecting block (14) opposite side is connected, the one end of connecting rod (16) is connected with fixed block (17) No. two, connecting plate (18) are installed to the bottom of fixed block (17) No. two, the top of connecting plate (18) and the inner wall that is located base (1) are provided with a plurality of damping spring (19).

3. The telescopic device of a road bridge guardrail bar of claim 1, wherein: the driving gear (7) is meshed with the driven gear (8), and the inner wall of the supporting column (3) is provided with an internal thread matched with the screw rod (9).

4. The telescopic device of a road bridge guardrail bar of claim 1, wherein: the roller (10) is rotatably connected with the mounting rack (11) through a rotating shaft and a bearing.

5. The telescopic device of a road bridge guardrail bar of claim 2, wherein: the first connecting rod (13) and the second connecting rod (16) are W-shaped, and a sliding groove matched with the sliding block (15) is formed in the inner wall of the base (1).

6. The telescopic device of a road bridge guardrail bar of claim 2, wherein: a connecting rod (13) and connecting block (14) are through pivot, bearing swing joint, connecting block (14) and No. two connecting rod (16) are through pivot, bearing swing joint.