CN215801025U

CN215801025U - A liftable guardrail for bridge

Info

Publication number: CN215801025U
Application number: CN202122476991.9U
Authority: CN
Inventors: 马啸
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-02-11
Anticipated expiration: 2031-10-14

Abstract

The utility model discloses a lifting guardrail for a bridge, which relates to the technical field of guardrails and comprises a second cross beam, wherein when a fixed rod moves in a guide pipe, the second cross beam can only move up and down in the vertical direction; the screw rod can drive the second cross beam to move up and down when rotating, so that the height of the guardrail can be conveniently adjusted according to requirements; the two first bevel gears and the two second bevel gears are matched to ensure that the two screw rods rotate in opposite directions at the same time; the handle is detachably connected with the rotating shaft, and when the height of the guardrail does not need to be adjusted, the handle can be detached from the rotating shaft and retracted, so that the situation that non-workers adjust the height of the second cross beam at will is avoided; the bottom plate can be fixed on the ground by the screws; the telescopic rod can strengthen the strength of the guardrail and simultaneously plays a role in blocking. The guardrail adjusting device is simple and reliable in structure, convenient to adjust the height of the guardrail, strong in guardrail firmness and high in safety, and is suitable for popularization.

Description

A liftable guardrail for bridge

Technical Field

The utility model relates to the technical field of guard railings, in particular to a lifting guard rail for a bridge.

Background

With the rapid development of society, the bridge construction level in China is rapidly developed, and in the bridge construction, in order to increase the safety of people participating in traffic, people flow and traffic tools need to be isolated in different areas by using guardrails.

Traditional guardrail for bridge can't carry out altitude mixture control in-service use, and the practicality is relatively poor to the self intensity of guardrail is not high, and the guardrail is firm inadequately, and the security is relatively poor.

Disclosure of Invention

Aiming at the problems, the utility model provides a lifting guardrail for a bridge, which solves the problems that the existing guardrail for the bridge cannot be adjusted in height, is not firm enough and has poor safety.

The technical scheme of the utility model is as follows: a lifting guardrail for a bridge comprises a bottom plate, a first cross beam, a guide pipe, a second cross beam, a fixed rod, a rotating shaft, a first bevel gear, a screw and a second bevel gear; a first cross beam is arranged at the upper end of the bottom plate, guide pipes are arranged on two sides of the upper end of the first cross beam, a second cross beam is arranged above the guide pipes, fixing rods matched with the guide pipes are arranged on two sides of the lower end of the second cross beam, and the fixing rods are arranged in the guide pipes in a sliding connection mode; be equipped with the cavity in the first crossbeam, transversely rotate in the cavity and be connected with the pivot, the equal fixed connection's in pivot both ends cover is equipped with first bevel gear, two first bevel gear sets up back of the body mutually, two all be equipped with the screw in the dead lever, the spiro union has matched with screw rod, two in the screw lower extreme all runs through the cavity upper wall and is connected with second bevel gear, and screw rod lower extreme and cavity upper wall rotate to be connected, two second bevel gear is connected with two first bevel gear meshing respectively.

Further, the rotating directions of the two screws are opposite.

Furthermore, one end of the rotating shaft penetrates through the side wall of the cavity and is connected with a detachable handle.

Furthermore, handle one end is equipped with square bulge, be equipped with the square groove with square bulge matched with in the pivot, the setting of connection can be dismantled in square groove to square bulge.

Furthermore, two ends of the bottom plate are vertically screwed with screws.

Furthermore, a plurality of telescopic rods which are uniformly distributed are arranged between the first cross beam and the second cross beam.

The utility model has the advantages that: when the fixed rod moves in the guide pipe, the second cross beam can only move up and down in the vertical direction; the screw rod can drive the second cross beam to move up and down when rotating, so that the height of the guardrail can be conveniently adjusted according to requirements; the two first bevel gears and the two second bevel gears are matched to ensure that the two screw rods rotate in opposite directions at the same time; the rotation directions of the two screw rods are opposite, so that the two fixing rods can move up and down simultaneously, and the interference generated when the height of the guardrail is adjusted is avoided; the handle is detachably connected with the rotating shaft, and when the height of the guardrail does not need to be adjusted, the handle can be detached from the rotating shaft and retracted, so that the situation that non-workers adjust the height of the second cross beam at will is avoided; the bottom plate can be fixed on the ground by the screws; the telescopic rod can strengthen the strength of the guardrail and simultaneously plays a role in blocking. The guardrail adjusting device is simple and reliable in structure, convenient to adjust the height of the guardrail, strong in guardrail firmness and high in safety, and is suitable for popularization.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

FIG. 1 is a structural schematic diagram of the overall state of the present invention;

FIG. 2 is a schematic diagram of the overall configuration of the present invention;

FIG. 3 is a schematic diagram of a square groove configuration of the present invention;

fig. 4 is a schematic view of the handle structure of the present invention.

Reference numerals:

the device comprises a base plate 1, a first beam 2, a cavity 201, a guide tube 3, a second beam 4, a fixing rod 5, a rotating shaft 6, a square groove 601, a first bevel gear 7, a screw rod 8, a second bevel gear 9, a handle 10, a square protrusion 101, a screw 11 and a telescopic rod 12.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 4, a liftable guardrail for a bridge comprises a base plate 1, a first beam 2, a guide pipe 3, a second beam 4, a fixing rod 5, a rotating shaft 6, a first bevel gear 7, a screw 8 and a second bevel gear 9; the upper end of the bottom plate 1 is provided with a first cross beam 2, two sides of the upper end of the first cross beam 2 are respectively provided with a guide pipe 3, a second cross beam 4 is arranged above the guide pipes 3, two sides of the lower end of the second cross beam 4 are respectively provided with a fixing rod 5 matched with the guide pipes 3, the fixing rods 5 are arranged in the guide pipes 3 in a sliding connection mode, the fixing rods 5 can limit the moving range of the second cross beam 4 when moving in the guide pipes 3, the second cross beam 4 can only move up and down in the vertical direction, and the first cross beam 2, the second cross beam 4, the guide pipes 3 and the fixing rods 5 can play a role of a guardrail in a matching mode; a cavity 201 is arranged in the first cross beam 2, a rotating shaft 6 is transversely and rotatably connected in the cavity 201, first bevel gears 7 are sleeved on two ends of the rotating shaft 6, the two first bevel gears 7 can be driven to rotate simultaneously when the rotating shaft 6 rotates, the two first bevel gears 7 are arranged in a reverse manner, screw holes are formed in the two fixing rods 5, matched screw rods 8 are screwed in the screw holes, and the fixing rods 5 can be driven to move up and down in the guide pipes 3 when the screw rods 8 rotate, so that the second cross beam 4 can move up and down; the lower ends of the two screws 8 penetrate through the upper wall of the cavity 201 and are connected with the second bevel gears 9, the lower ends of the screws 8 are rotatably connected with the upper wall of the cavity 201, the two second bevel gears 9 are respectively meshed with the two first bevel gears 7, and the two first bevel gears 7 are arranged in opposite directions, so that the rotating shaft 6 can drive the second bevel gears 9 to simultaneously rotate in opposite directions when rotating, further drive the two screws 8 to simultaneously rotate in opposite directions, the rotating directions of the two screws 8 are opposite, and the two fixing rods 5 can be driven to simultaneously move up and down when the two screws 8 rotate, so that interference is avoided; one end of the rotating shaft 6 penetrates through the side wall of the cavity 201 and is connected with a detachable handle 10, the handle 10 is convenient for manually controlling the rotating shaft 6 to rotate, and further the height of the second cross beam 4 is adjusted, one end of the handle 10 is provided with a square protrusion 101, the rotating shaft 6 is provided with a square groove 601 matched with the square protrusion 101, the square protrusion 101 is detachably connected and arranged in the square groove 601, when the height of the second cross beam 4 needs to be adjusted, the square protrusion 101 is inserted into the square groove 601, the handle 10 can be normally rotated, and when the height of the second cross beam 4 does not need to be adjusted, the handle 10 can be detached from the rotating shaft 6 and retracted, so that a non-worker is prevented from randomly adjusting the height of the second cross beam 4; the screw 11 has been joined in marriage to the equal vertical spiro union in bottom plate 1 both ends, and screw 11 can be fixed bottom plate 1 subaerial, is equipped with a plurality of evenly distributed's telescopic link 12 between first crossbeam 2 and the second crossbeam 4, and when second crossbeam 4 reciprocated height-adjusting, telescopic link 12 can stretch out and draw back simultaneously, and a plurality of telescopic link 12 can strengthen guardrail intensity, plays the effect of stopping simultaneously.

The use method of the utility model comprises the following steps: when the guardrail is needed to be used, firstly, the bottom plate 1 is placed on the road surface of a bridge, then the screw 11 is rotated, the front end of the screw 11 is screwed into the ground, the bottom plate 1 is ensured to be kept still, and at the moment, the first cross beam 2, the second cross beam 4, the guide pipe 3, the fixed rod 5 and the telescopic rod 12 are matched to play a role of the guardrail; when the height of guardrail needs to be adjusted, insert the square bulge 101 of handle 10 one end into the square groove 601 of pivot 6, turn handle 10, handle 10 drives pivot 6 and rotates, pivot 6 drives two first bevel gears 7 and rotates simultaneously, two first bevel gears 7 drive second bevel gear 9 with the meshing of second bevel gear 9 and rotate simultaneously, and then drive two screw rods 8 and rotate with opposite direction simultaneously, screw rod 8 drives dead lever 5 and reciprocates in stand pipe 3, realize reciprocating of second crossbeam 4, after the height of second crossbeam 4 meets the requirements, stop turning handle 10, and take off handle 10 from pivot 6, accomplish the installation work to the guardrail.

When the fixed rod moves in the guide pipe, the second cross beam can only move up and down in the vertical direction; the screw rod can drive the second cross beam to move up and down when rotating, so that the height of the guardrail can be conveniently adjusted according to requirements; the two first bevel gears and the two second bevel gears are matched to ensure that the two screw rods rotate in opposite directions at the same time; the rotation directions of the two screw rods are opposite, so that the two fixing rods can move up and down simultaneously, and the interference generated when the height of the guardrail is adjusted is avoided; the handle is detachably connected with the rotating shaft, and when the height of the guardrail does not need to be adjusted, the handle can be detached from the rotating shaft and retracted, so that the situation that non-workers adjust the height of the second cross beam at will is avoided; the bottom plate can be fixed on the ground by the screws; the telescopic rod can strengthen the strength of the guardrail and simultaneously plays a role in blocking. The guardrail adjusting device is simple and reliable in structure, convenient to adjust the height of the guardrail, strong in guardrail firmness and high in safety, and is suitable for popularization.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A lifting guardrail for a bridge is characterized by comprising a bottom plate (1), a first cross beam (2), a guide pipe (3), a second cross beam (4), a fixed rod (5), a rotating shaft (6), a first bevel gear (7), a screw (8) and a second bevel gear (9); a first cross beam (2) is arranged at the upper end of the bottom plate (1), guide pipes (3) are arranged on two sides of the upper end of the first cross beam (2), a second cross beam (4) is arranged above the guide pipes (3), fixing rods (5) matched with the guide pipes (3) are arranged on two sides of the lower end of the second cross beam (4), and the fixing rods (5) are arranged in the guide pipes (3) in a sliding connection mode; be equipped with cavity (201) in first crossbeam (2), transverse rotation is connected with pivot (6) in cavity (201), the cover of the equal fixed connection in pivot (6) both ends is equipped with first bevel gear (7), two first bevel gear (7) set up mutually back on the body, two all be equipped with the screw in dead lever (5), threaded connection has matched with screw rod (8), two in the screw rod (8) lower extreme all runs through cavity (201) upper wall and is connected with second bevel gear (9), and screw rod (8) lower extreme and cavity (201) upper wall rotate to be connected, two second bevel gear (9) are connected with two first bevel gear (7) meshing respectively.

2. Liftable guardrail for bridges according to claim 1, characterized in that: the rotating directions of the two screws (8) are opposite.

3. Liftable guardrail for bridges according to claim 1, characterized in that: one end of the rotating shaft (6) penetrates through the side wall of the cavity (201) and is connected with a detachable handle (10).

4. Liftable guardrail for bridges according to claim 3, characterized in that: handle (10) one end is equipped with square bulge (101), be equipped with on pivot (6) with square bulge (101) matched with square recess (601), the setting that the connection can be dismantled in square recess (601) to square bulge (101).

5. Liftable guardrail for bridges according to claim 1, characterized in that: and screws (11) are vertically screwed at two ends of the bottom plate (1).

6. Liftable guardrail for bridges according to claim 1, characterized in that: a plurality of telescopic rods (12) which are uniformly distributed are arranged between the first cross beam (2) and the second cross beam (4).