Protective support for road and bridge constructional engineering

Abstract

The utility model belongs to the field of road and bridge building assembly supports, and relates to a road and bridge building engineering protection support which is composed of stand columns on the two sides and a middle support, bases I are arranged at the bottom ends of the stand columns, fixing bolts I are arranged on the bases I, and universal wheels are arranged at the bottom ends of the bases I; two mounting plates are symmetrically arranged on the lower portion of the front end of the stand column, longitudinal moving grooves are formed in the mounting plates, limiting grooves are formed in the stand column corresponding to the lower portions of the moving grooves, transverse connecting shafts are arranged in the moving grooves, supporting rods are arranged on the connecting shafts, the lower ends of the supporting rods are connected to a base II through rotating shafts, and fixing bolts II are arranged on the base II. According to the utility model, the universal wheels are added during transportation, so that the transportation and the movement are convenient; the auxiliary stand columns are additionally arranged between the stand columns, and the stability of the protection support is improved; a fixing bolt I and a fixing bolt II are arranged on the base I and the base II and can be suitable for various sandstone complex road surfaces; and different clamping holes can be selected for the clamping heads, so that the combination modes of a plurality of protective brackets are increased.

Description

Technical Field

[0001] The utility model belongs to the field of road and bridge construction assembly brackets, in particular to a road and bridge construction engineering protection bracket. Background Art

[0002] Building protection brackets are widely used in many transportation construction projects such as roads, bridges, tunnels, etc. During the construction process, the protection brackets can isolate lanes and protect pedestrians. The protection brackets isolate the construction site from the surrounding environment and prevent outsiders and vehicles from entering by mistake.

[0003] In the related art, a construction engineering protective support with announcement number CN218643939U is disclosed. The device includes a protective support body, wherein support rods are provided on both sides of the protective support body, and support legs are connected under the support rods. When the foot pedals on both sides of the support legs are stepped on, the foot pedals drive the stabilizing feet to move downward through the sliding blocks, and the supporting rods connected under the stabilizing feet rotate inward, and gripping blocks are provided under the supporting rods to contact the ground. The stabilizing feet and the supporting legs form a stable triangular support shape, but it can only work in a windless and flat environment. In a windy construction site, the gripping blocks only contact the ground, and the protective support body will still be blown down by the wind; or on a special terrain with uneven road surface, the gripping blocks cannot contact the ground, and the gripping blocks cannot play a supporting role; in addition, when the length of the telescopic net 4 is too large, in the presence of external force, such as strong wind, it will also cause the protective support to overturn, and in dark sections such as tunnels, the protective support body is not obvious and cannot play a warning role.

[0004] Therefore, in view of the above problems, a road and bridge construction engineering protective bracket is proposed to solve the above problems. Summary of the Invention

[0005] The utility model addresses the deficiencies of the prior art and provides a protective bracket for road and bridge construction projects.

[0006] The utility model relates to a protective support for road and bridge construction projects, which is composed of columns on both sides and a bracket in the middle. The cross-section of the column is square, and a base I which is integrated with the column is fixed at the bottom end of the column, a fixing pin I is provided on the base I, and a universal wheel is provided at the bottom end; two mounting plates are symmetrically provided at the lower part of the front end of the column, a longitudinal movable groove is provided on the mounting plate, a horizontally penetrating and upwardly inclined limit groove is provided on the column corresponding to the lower part of the movable groove, and the limit groove is connected to the movable groove, a horizontal connecting shaft is provided in the movable groove, a support rod is provided on the connecting shaft, the lower end of the support rod is connected to the base II through a rotating shaft, and a fixing pin II is provided on the base II.

[0007] As a further improvement of the present invention, longitudinal sliding grooves are respectively provided on the lower halves of the opposite surfaces of the columns on both sides; the bracket is a telescopic bracket, and the bracket is composed of movably connected cross frames connected end to end in sequence and hinged by pins to form a diamond network structure; the upper ends of the brackets at both ends of the bracket are movably connected to the upper ends of the columns on both sides, and the lower ends are slidably connected to the sliding grooves.

[0008] As a further improvement of the present invention, mounting grooves are provided on the inner sides of the opposite surfaces of the upper ends of the columns on both sides, and the upper end of the bracket is placed in the mounting groove and hinged through a hinge shaft.

[0009] As a further improvement of the present invention, rollers are hinged at the lower ends of the brackets on both sides and are placed in sliding grooves.

[0010] As a further improvement of the present invention, one or more auxiliary columns are provided between the columns on both sides, and sliding holes penetrating the left and right sides are provided at the upper and lower ends of the auxiliary columns respectively, and the bracket passes through the sliding holes.

[0011] As a further improvement of the present invention, limiting sliding grooves are provided on the front and rear side walls of the sliding hole, and the pin shaft placed in the sliding hole and its two end extensions are placed in the limiting sliding grooves.

[0012] As a further improvement of the present invention, the front side of the base I and the front side of the column are located on the same plane, two magnetic pieces I are provided at the front end of the base I, and two magnetic pieces II are provided at the rear end of the base II at relative positions.

[0013] As a further improvement of the present invention, a splicing sleeve and a splicing mechanism are respectively fixedly connected to the upper outer sides of the columns on both sides. The splicing mechanism includes an L-shaped splicing column, a spring is fixedly connected to the inside of the splicing column, a limiting circular block is provided at the front section of the spring, a clamping head is fixedly connected to the side of the limiting circular block away from the spring and is placed on the outer side of the splicing column, and clamping holes are provided on the surface of the splicing sleeve away from the column and on the surface on the same side as the clamping head. The height of the clamping hole corresponds to the clamping head and is used in conjunction with each other.

[0014] As a further improvement of the present invention, a warning sign is provided on the upper portion of the auxiliary column, and the warning sign is fixed to the auxiliary column by bolts.

[0015] The utility model provides a protective bracket for road and bridge construction projects. The structural improvement of the above-mentioned device makes the structural design reasonable. Universal wheels are added during transportation, which makes transportation and movement convenient. Warning signs are designed on the auxiliary columns, which are convenient for warning surrounding vehicles and people in dark conditions such as tunnels. An auxiliary column is added in the middle of the column to play a limiting role to a certain extent, which increases the stability of the protective bracket in the case of external interference. Fixed pins I and II are provided on the base I and the base II, which can be applicable to various complex gravel roads. A plurality of clamping holes are provided on the splicing sleeve, and a clamping head is provided on the splicing mechanism. The clamping head can select different clamping holes, which increases the combination mode between multiple protective brackets, thereby effectively increasing the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a structural diagram of the column and base I of the utility model;

[0018] Figure 3 This is a structural diagram of the auxiliary column and base I of the utility model;

[0019] Figure 4 This is a schematic structural diagram of part A of the present utility model;

[0020] Figure 5 This is a schematic structural diagram of part B of the utility model;

[0021] Figure 6 This is a schematic structural diagram of part C of the present utility model;

[0022] Figure 7 It is a cross-sectional view of the column and bracket of the utility model. DETAILED DESCRIPTION

[0023] The utility model is a road and bridge construction engineering protection bracket, which is composed of columns 1 on both sides and a bracket 2 in the middle. Figure 1 As shown, the cross section of the column 1 is square, and a base Ⅰ3 integral with the column 1 is fixed at the bottom end.

[0024] A supporting device is provided on the column 1, and the supporting device includes a mounting plate 6, a connecting shaft 9, a support rod 10 and a base II 11. Specifically, two mounting plates 6 are symmetrically provided at the lower front end of the column 1, and a longitudinal movable groove 7 is provided on the mounting plate 6. A horizontally penetrating and upwardly inclined limiting groove 8 is provided on the column 1 corresponding to the lower part of the movable groove 7, and the limiting groove 8 is connected to the movable groove 7. A horizontal connecting shaft 9 is provided in the movable groove 7, and a support rod 10 is provided on the connecting shaft 9. The lower end of the support rod 10 is connected to the base II 11 through a rotating shaft.

[0025] On the base I3 and the base II11, there are respectively provided with an inverted L-shaped cone-shaped fixed pin I4 and a fixed pin II30, and a universal wheel 5 is provided at the bottom end. A brake pad 26 is provided on the universal wheel 5, and elastic devices are provided on the upper part of the fixed pin I4 and the base I3, and the fixed pin II30 and the base II11. The front side of the base I3 and the front side of the column 1 are located on the same plane. Figure 2-3 As shown, two magnetic pieces I 17 are provided at the front end of the base I 3 , and two magnetic pieces II are provided at the rear end of the base II 11 .

[0026] The bracket 2 is a telescopic bracket, and the bracket 2 is a diamond-shaped network structure formed by connecting the cross-frames in sequence end to end and hinged by the pin 13; Figure 7 As shown, mounting grooves 14 are provided on the inner sides of the opposite surfaces of the upper ends of the columns 1 on both sides, the upper ends of the brackets 2 are placed in the mounting grooves 14 and hinged through hinge shafts, and longitudinal sliding grooves 12 are respectively opened in the lower halves of the opposite surfaces of the columns 1 on both sides, and rollers are hinged at the lower ends of the brackets 2 on both sides and placed in the sliding grooves 12; the protective brackets are opened and closed by moving the columns 1 to drive the brackets 2 so that the rollers move up and down in the sliding grooves 12.

[0027] One or more auxiliary columns 28 are located between the two side columns 1. Sliding holes 15 are provided at the upper and lower ends of the auxiliary columns 28, extending through the left and right sides. Bracket 2 passes through these sliding holes 15. Limiting sliding grooves 29 are provided on the front and rear walls of these sliding holes 15. The pin 13 of bracket 2, which is placed in the sliding holes 15, and its extended portions at both ends are placed in the limiting sliding grooves 29. Auxiliary columns 28 are also equipped with support devices, similar to those on column 1.

[0028] In order to facilitate the connection between the devices to the required length, a splicing sleeve 18 and a splicing mechanism 19 are fixedly connected to the upper outer side of the columns 1 on both sides. Figure 4-5 As shown, the splicing mechanism 19 includes an L-shaped splicing column 20, with a spring 21 fixedly connected to the interior of the splicing column 20. A limiting circular block 22 is provided at the front end of the spring 21. A clamping head 23 is fixedly connected to the side of the limiting circular block 22 away from the spring 21 and is placed on the outside of the splicing column 20. At the same time, two clamping holes 24 are provided on the splicing sleeve 18 to cooperate with the clamping head 23. These two clamping holes 24 are respectively located on the surface of the splicing sleeve 18 away from the column 1 and on the surface on the same side as the clamping head 23. The height of the clamping holes 24 corresponds to that of the clamping head 23 and is used in conjunction with each other. During assembly, the splicing mechanism 19 of adjacent brackets can be placed in the splicing sleeve 18. If a straight long-distance protective bracket is required, the clamping head 23 is matched with the clamping hole 24 on the same side. If an enclosed bracket is required, the clamping head 23 is matched with the clamping hole 24 on the surface away from the column 1.

[0029] In order to have better stability, the base Ⅰ3, universal wheel 5 and fixed pin Ⅰ4 are combined in two ways. The left side of the base Ⅰ3 of the two side columns 1 is equipped with a universal wheel 5, and the right side is equipped with a fixed pin Ⅰ4. The left and right ends of the base Ⅰ3 of the auxiliary column 28 are equipped with a fixed pin Ⅰ4, and the middle is equipped with a universal wheel 5. Figure 6 shown.

[0030] In order to make the present invention more stable after storage, the combination of the base II11, universal wheel 5 and fixed pin II30 is the same as the combination of the base I3 of the two side columns 1, and the magnetic piece I17 at the front end of the base I3 corresponds to the magnetic piece II at the rear end of the base II11 in one-to-one position.

[0031] To make it easier to remind surrounding vehicles and people, such as Figure 1 As shown, a warning sign 25 is provided on the upper portion of the auxiliary column 28 , and the warning sign 25 is fixedly connected to the auxiliary column 28 by bolts. Reflective strips 27 are provided on both sides of the columns 1 .

[0032] Before using the protective support for road and bridge construction projects of the present invention, the columns 1 are first placed vertically on the ground. The columns 1 at both ends are pulled outward via the universal wheels 5 fixed at the lower end of the base 13 to extend the stretching support 2 to the appropriate length and then stopped. The brake pads 26 on the universal wheels 5 at the lower end of the base 13 are fully pressed, and the fixing pins 14 are fully pressed and inserted into the ground. The support rod 10 is then pulled. The support rod 10 drives the universal wheels 5 fixed at the lower end of the base 211 to move, while the connecting shaft 9 is moved from the moving groove 7 and locked into the limiting groove 8. The brake pads 26 on the universal wheels 5 at the lower end of the base 211 are fully pressed, and the fixing pins 230 are fully pressed and inserted into the ground. The warning sign 25 is then opened, and the protective support is opened. When long-distance protection is required, the protective support is opened on the basis of the already opened protective support, and the ground splicing sleeves 18 and splicing mechanisms 19 are used at both ends to cooperate with each other, and one end of the connected protective support is opened to a distance and then positioned by the pins to achieve extension.

Claims

1. A road and bridge construction engineering protection support, which is composed of columns (1) on both sides and a support (2) in the middle, and is characterized in that: The cross section of the column (1) is square, and a base I (3) integral with the column (1) is fixed at the bottom end thereof, a fixing pin I (4) is provided on the base I (3), and a universal wheel (5) is provided at the bottom end; a supporting device is provided on the column (1), and the supporting device is symmetrically provided with two mounting plates (6) at the lower part of the front end of the column (1), a longitudinal movable groove (7) is provided on the mounting plate (6), a horizontally penetrating and upwardly inclined limiting groove (8) is provided on the column (1) corresponding to the lower part of the movable groove (7), and the limiting groove (8) is connected to the movable groove (7), a horizontal connecting shaft (9) is provided in the movable groove (7), a supporting rod (10) is provided on the connecting shaft (9), the lower end of the supporting rod (10) is connected to the base II (11) through a rotating shaft, and a fixing pin II (30) is provided on the base II (11).

2. A road and bridge construction engineering protection bracket according to claim 1, characterized in that The lower halves of the opposite sides of the two side columns (1) are respectively provided with longitudinal sliding grooves (12); the bracket (2) is a telescopic bracket, and the bracket (2) is composed of movably connected cross frames connected end to end in sequence and hinged by pins (13) to form a diamond mesh structure; the upper ends of the two end brackets of the bracket (2) are movably connected to the upper ends of the two side columns (1), and the lower ends are slidably connected to the sliding grooves (12).

3. A road and bridge construction engineering protection bracket according to claim 2, characterized in that Mounting grooves (14) are provided on the inner sides of the opposite upper ends of the upright posts (1) on both sides, and the upper end of the bracket (2) is placed in the mounting groove (14) and is hinged via a hinge shaft.

4. A road and bridge construction engineering protection bracket according to claim 2, characterized in that The lower ends of the brackets (2) on both sides are hinged with rollers and are placed in the sliding grooves (12).

5. A road and bridge construction engineering protection bracket according to claim 2, characterized in that One or more auxiliary columns (28) are provided between the two side columns (1). The upper and lower ends of the auxiliary columns (28) are respectively provided with sliding holes (15) running through the left and right sides, and the bracket (2) passes through the sliding holes (15).

6. A road and bridge construction engineering protection bracket according to claim 5, characterized in that A limiting sliding groove (29) is provided on the front and rear side walls of the sliding hole (15), and the pin shaft (13) placed in the sliding hole (15) and its two end extensions are placed in the limiting sliding groove (29).

7. A road and bridge construction engineering protection bracket according to claim 1, characterized in that The front side of the base I (3) and the front side of the column (1) are located on the same plane. Two magnetic pieces I (17) are provided at the front end of the base I (3), and two magnetic pieces II are provided at the rear end of the base II (11).

8. A road and bridge construction engineering protection bracket according to claim 1, characterized in that The upper outer sides of the columns (1) on both sides are respectively fixedly connected with a splicing sleeve (18) and a splicing mechanism (19), the splicing mechanism (19) comprising an L-shaped splicing column (20), a spring (21) being fixedly connected inside the splicing column (20), a limiting circular block (22) being provided at the front section of the spring (21), a clamping head (23) being fixedly connected to the side of the limiting circular block (22) away from the spring (21) and being placed on the outer side of the splicing column (20), a clamping hole (24) being provided on the surface of the splicing sleeve (18) away from the column (1) and on the surface on the same side as the clamping head (23), the height of the clamping hole (24) corresponding to that of the clamping head (23) for use in conjunction with each other.

9. A road and bridge construction engineering protection support according to claim 5, characterized in that A warning sign (25) is provided on the upper portion of the auxiliary column (28), and the warning sign (25) and the auxiliary column (28) are fixedly connected by bolts.

Images