Protective device for road and bridge engineering

Abstract

The utility model discloses a protective device for road and bridge engineering, and relates to the technical field of road and bridge engineering. The protective device for road and bridge engineering comprises a protective vertical block, an extension mechanism and a connecting mechanism, the extension mechanism is arranged on the front side of the protective vertical block, the extension mechanism comprises a containing groove and auxiliary protective plates, the containing groove is formed in the front side of the protective vertical block, and the two sets of auxiliary protective plates are arranged in the containing groove; the connecting mechanism is arranged on the front side of the protective vertical block, the connecting mechanism comprises fixing blocks, positioning holes and a hollow block, the two fixing blocks are fixedly installed on one side of one auxiliary protective plate, the tops of the two fixing blocks are each provided with one vertically-through positioning hole, and the hollow block is fixedly installed on one side of the other auxiliary protective plate. The auxiliary protection plates can be unfolded towards the two sides, the protection range of a single device is enlarged, the site can be enclosed by using fewer devices, and the auxiliary protection plates are retracted into the containing grooves when not in use, so that storage is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of road and bridge engineering technology, and in particular to a protective device for road and bridge engineering. Background Technology

[0002] Chinese document CN217712065U discloses a protective device for roads, bridges, and engineering projects, comprising two support columns, with a base fixedly connected to the bottom of each support column, and a fixed plate fixedly connected between the two support columns. Movable rods are movably connected to the four corners of the front of the fixed plate, and a protective plate is fixedly connected to one end of each of the four movable rods. A buffer sleeve is fitted onto the outer side of the protective plate. Fixed grooves are formed at the four corners of the front of the fixed plate, and the inner walls of the four fixed grooves are slidably connected to the movable rods. Upon impact, the protective plate drives the movable rods to move into the fixed grooves, causing the rack on the movable rods to drive the first gear to rotate. The first gear drives the torsion spring inside the fixed base to rotate, and the elastic force of the torsion spring buffers the arc-shaped plate. A drive motor drives the second gear to rotate, causing the second rack to raise a warning light, which can warn pedestrians at night not to approach and prevent pedestrian injury.

[0003] The aforementioned road, bridge and engineering protective devices have poor expandability during use, resulting in a small protective range. Since construction sites are generally large, more devices are needed to enclose the site, reducing the availability and practicality of the devices. Utility Model Content

[0004] The purpose of this utility model is to provide a protective device for road and bridge engineering, which can solve the problems of poor expandability of the above-mentioned protective devices for road and bridge engineering, resulting in a small protective range. Since the construction site is generally large, more devices are needed to enclose the site, which reduces the usability and practicality of the device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective device for road and bridge engineering, comprising a protective block, an extension mechanism, and a connecting mechanism. The extension mechanism is located on the front side of the protective block and includes a receiving groove and auxiliary guard plates. The receiving groove is provided on the front side of the protective block, and two sets of auxiliary guard plates are provided inside the receiving groove. The connecting mechanism is located on the front side of the protective block and includes a fixing block, a positioning hole, and a hollow block. Two sets of fixing blocks are fixedly installed on one side of one set of auxiliary guard plates, and a set of vertically penetrating positioning holes are respectively provided on the top of the two sets of fixing blocks. A hollow block is fixedly installed on one side of the other set of auxiliary guard plates.

[0006] Preferably, the expansion mechanism further includes rotating rods. Two sets of rotating rods are rotatably installed on the inner top of the receiving groove and the inner top of the receiving groove. The two sets of rotating rods are fixedly connected to the inside of the auxiliary guard plate, which can expand the auxiliary guard plate to both sides, increase the protection range of a single device, and use fewer devices to enclose the site. When not in use, the auxiliary guard plate can be retracted into the receiving groove for easy storage, thus improving the usability and practicality of the device.

[0007] Preferably, the connecting mechanism further includes a movable block, a tension spring, a limiting rod, and a lever. The inner wall of the hollow block is slidably connected to the outer wall of the two sets of movable blocks. The adjacent sides of the two sets of movable blocks are fixedly connected to the two ends of the tension spring. A set of limiting rods is fixedly installed on the top of one set of movable blocks and the bottom of the other set of movable blocks. One end of the limiting rod passes through the hollow block and extends into the interior of the positioning hole. A set of levers is fixedly installed on the front side of each movable block. This allows different devices to be quickly connected to form a long strip-shaped whole, with high flexibility when bending, ensuring the protective effect of the device and facilitating operation by the staff.

[0008] Preferably, a handle is fixedly installed on the front side of each of the two sets of auxiliary guard plates.

[0009] Preferably, reflective stickers are fixedly installed on the front side of the auxiliary guard plate and the rear inner wall of the receiving groove, and an audible and visual warning light is fixedly installed on the top of the protective block.

[0010] Preferably, a support frame is fixedly installed at the bottom of the protective block.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) The protective device for road and bridge engineering, through the combined use of the receiving groove, rotating rod and auxiliary guard plate, can expand the auxiliary guard plate to both sides, increase the protection range of a single device, and use fewer devices to enclose the site. When not in use, the auxiliary guard plate can be retracted into the receiving groove for easy storage, which improves the usability and practicality of the device.

[0013] (2) The protective device for road and bridge engineering can quickly connect different devices to form a long strip by using a combination of fixed blocks, positioning holes, hollow blocks, movable blocks, tension springs, limit rods and levers. It has high flexibility when bending, ensuring the protective effect of the device and making it easy for staff to operate. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the protective block of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the fixing block of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the auxiliary guard plate of this utility model;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the hollow block of this utility model.

[0020] Reference numerals: 1. Protective stand; 2. Expansion mechanism; 201. Receiving groove; 202. Rotating rod; 203. Auxiliary guard plate; 3. Connecting mechanism; 301. Fixing block; 302. Positioning hole; 303. Hollow block; 304. Movable block; 305. Tension spring; 306. Limiting rod; 307. Paddle; 4. Support frame; 5. Handle; 6. Reflective sticker; 7. Audible and visual warning light; 8. Support frame. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Please see Figure 1-5 This utility model provides a technical solution: a protective device for road and bridge engineering, including a protective block 1, an expansion mechanism 2, and a connecting mechanism 3. The expansion mechanism 2 is located on the front side of the protective block 1 and includes a receiving groove 201 and auxiliary guard plates 203. The receiving groove 201 is provided on the front side of the protective block 1, and two sets of auxiliary guard plates 203 are arranged inside the receiving groove 201. The connecting mechanism 3 is located on the front side of the protective block 1 and includes a fixing block 301, a positioning hole 302, and a hollow block 303. Two sets of fixing blocks 301 are fixedly installed on one side of the auxiliary guard plate 203. The top of each of the two sets of fixing blocks 301 is provided with a set of vertically penetrating positioning holes 302. A hollow block 303 is fixedly installed on one side of the other auxiliary guard plate 203. A set of handles 5 are fixedly installed on the front side of each of the two sets of auxiliary guard plates 203. Reflective stickers 6 are fixedly installed on the front side of the auxiliary guard plate 203 and the rear inner wall of the receiving groove 201. A sound and light warning light 7 is fixedly installed on the top of the protective block 1. A support frame 4 is fixedly installed on the bottom of the protective block 1.

[0023] Secondly, the extension mechanism 2 also includes a rotating rod 202. Two sets of rotating rods 202 are rotatably installed on the inner top of the receiving groove 201. The two sets of rotating rods 202 are fixedly connected to the inside of the auxiliary guard plate 203, which can expand the auxiliary guard plate 203 to both sides, increase the protection range of a single device, and use fewer devices to enclose the site. When not in use, the auxiliary guard plate 203 can be retracted into the receiving groove 201 for easy storage, which improves the usability and practicality of the device.

[0024] Furthermore, the connecting mechanism 3 also includes a movable block 304, a tension spring 305, a limiting rod 306, and a lever 307. The inner wall of the hollow block 303 is slidably connected to the outer wall of the two sets of movable blocks 304. The adjacent sides of the two sets of movable blocks 304 are fixedly connected to the two ends of the tension spring 305. A set of limiting rods 306 are fixedly installed on the top of one set of movable blocks 304 and the bottom of the other set of movable blocks 304. One end of the limiting rod 306 passes through the hollow block 303 and extends into the interior of the positioning hole 302. A set of levers 307 are fixedly installed on the front side of the movable blocks 304. This allows different devices to be quickly connected to form a long strip-shaped whole, with high flexibility when bending, ensuring the protective effect of the device and facilitating operation by the staff.

[0025] Working principle: When using this device, multiple devices are placed at the edge of the construction site via the support frame 4. Simultaneously, two sets of levers 307 are moved towards the center, causing two sets of movable blocks 304 to slide towards each other within the hollow block 303 and compress the tension spring 305. This moves the limiting rod 306 out of the positioning hole 302, canceling the limitation between the two sets of auxiliary guard plates 203. By pulling the handle 5, the two sets of auxiliary guard plates 203 are rotated on the rotating rod 202, moving the auxiliary guard plates 203 out of the receiving groove 201 and unfolding them to both sides. Then, the hollow block 303 is aligned with the fixing block 301 of another set of devices, allowing the limiting rod 306 to be inserted into the positioning hole 302 of the other set of devices, thus connecting the different devices. The connected devices are then placed around the perimeter of the construction site, and the reflective sticker 6 and the audible and visual warning light 7 can warn people who approach.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A protective device for road and bridge engineering, characterized in that, include: Protective support block (1); An extension mechanism (2) is provided on the front side of the protective block (1). The extension mechanism (2) includes a receiving groove (201) and an auxiliary guard plate (203). The front side of the protective block (1) is provided with a receiving groove (201), and two sets of auxiliary guard plates (203) are provided inside the receiving groove (201). The connecting mechanism (3) is located on the front side of the protective block (1). The connecting mechanism (3) includes a fixing block (301), a positioning hole (302) and a hollow block (303). Two sets of fixing blocks (301) are fixedly installed on one side of a set of auxiliary guard plates (203). A set of positioning holes (302) that pass through vertically are opened on the top of the two sets of fixing blocks (301). A hollow block (303) is fixedly installed on one side of another set of auxiliary guard plates (203).

2. The protective device for road and bridge engineering according to claim 1, characterized in that: The extension mechanism (2) also includes a rotating rod (202). Two sets of rotating rods (202) are rotatably installed on the inner top of the receiving groove (201). The two sets of rotating rods (202) are respectively fixedly connected to the interior of the auxiliary guard plate (203).

3. A protective device for road and bridge engineering according to claim 2, characterized in that: The connecting mechanism (3) further includes a movable block (304), a tension spring (305), a limiting rod (306), and a paddle (307). The inner wall of the hollow block (303) is slidably connected to the outer wall of the two sets of movable blocks (304). The adjacent sides of the two sets of movable blocks (304) are fixedly connected to the two ends of the tension spring (305). A set of limiting rods (306) is fixedly installed on the top of one set of movable blocks (304) and the bottom of the other set of movable blocks (304). One end of the limiting rod (306) passes through the hollow block (303) and extends into the interior of the positioning hole (302). A set of paddles (307) is fixedly installed on the front side of the movable blocks (304).

4. A protective device for road and bridge engineering according to claim 3, characterized in that: A handle (5) is fixedly installed on the front side of each of the two sets of auxiliary guard plates (203).

5. A protective device for road and bridge engineering according to claim 4, characterized in that: Reflective stickers (6) are fixedly installed on the front side of the auxiliary guard plate (203) and the rear inner wall of the receiving groove (201), and an audible and visual warning light (7) is fixedly installed on the top of the protective block (1).

6. A protective device for road and bridge engineering according to claim 5, characterized in that: The bottom of the protective block (1) is fixedly installed with a support frame (4).

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