Fixing device suitable for bridge collapse chain type monitoring unit

Abstract

The utility model provides a fixing device suitable for a bridge collapse chain type monitoring unit. The fixing device comprises a fixing base and a cover plate. The fixing base is in a three-layer step shape, a base groove is formed in the central symmetry axis, perpendicular to the extending direction of the step, of the first layer of the step, first round holes are symmetrically formed in the two sides of the base groove, the kicking faces of the first layer and the second layer of the step are first arc-shaped grooves, and the tops of the first arc-shaped grooves extend towards the first round holes by a certain distance. Two first rectangular clamping grooves are formed in the second layer of the step and symmetrically formed in the two sides of the extension line of the central symmetry axis of the base groove of the base, and two second round holes are formed in the third layer of the step and symmetrically formed in the two sides of the extension line of the central symmetry axis of the base groove of the base; the cover plate is in a two-layer reverse step shape corresponding to the first step layer and the second step layer of the fixed base and is provided with a sliding groove corresponding to the base groove of the base, a second rectangular clamping groove corresponding to the first rectangular clamping groove and a second arc-shaped groove corresponding to the first arc-shaped groove.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical design and manufacturing, and particularly relates to a fixing device applicable to a chain-type monitoring unit for bridge collapse. Background Technique

[0002] In recent years, with the rapid development of China's transportation infrastructure construction, bridges, as important transportation facilities connecting urban and rural areas and spanning rivers, have reached an unprecedented scale in terms of quantity and size. According to statistics, as of the end of 2023, the total number of various highway bridges in the country has exceeded 1.0793 million, and the total number of railway bridges in the country also reached approximately 0.092 million at the end of 2022. China has truly become a major bridge country.

[0003] However, with the continuous increase in the number of bridges, bridge safety issues have become increasingly prominent, especially under extreme weather conditions. Under extreme weather conditions, such as the impact of natural disasters like heavy rain, floods, debris flows, and earthquakes, the safety risks of bridges increase significantly. These natural disasters can not only cause direct damage to the bridge structure but also trigger secondary disasters, such as vehicles falling into the river and traffic interruption caused by collapsed bridges. These accidents highlight the insufficiency of the infrastructure safety early warning and prevention and control mechanism under extreme weather.

[0004] Currently, to solve the above technical problems, usually, monitoring units are set in each bridge span of a multi-span beam bridge, and each monitoring unit is connected in a chain to obtain a chain-type monitoring unit to monitor in real time whether the bridge has deformation and collapse. However, how to fix the monitoring unit on each bridge span and connect each monitoring unit in a chain is a technical problem that urgently needs to be solved currently. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the utility model proposes a fixing device applicable to a chain-type monitoring unit for bridge collapse to solve the technical problems existing in the existing technology.

[0006] The technical solution adopted by the utility model is as follows:

[0007] Provide a fixing device applicable to a chain-type monitoring unit for bridge collapse, including: a fixing base 1 and a cover plate 7;

[0008] The fixed base 1 is of a three-layer stepped type. On the central symmetry axis perpendicular to the extension direction of the first step, there is a base groove 2. On both sides of the base groove 2 at symmetric positions, there are first round holes 3. The tread surface between the first step and the second step is a first arc groove 4. The top of the first arc groove 4 extends a certain distance towards the first round hole 3. On the second step, there are two first rectangular card slots 5, and the two first rectangular card slots 5 are symmetrically arranged on both sides of the horizontal extension line of the central symmetry axis of the base groove 2. On the third step, there are two second round holes 6, and the two second round holes 6 are symmetrically arranged on both sides of the horizontal extension line of the central symmetry axis of the base groove 2;

[0009] The cover plate 7 is of a two-layer reverse stepped type corresponding to the first and second stepped layers of the fixed base;

[0010] The cover plate is provided with a sliding card slot 8 corresponding to the base groove 2, a second rectangular card slot 9 corresponding to the first rectangular card slot 5, and a second arc groove 10 corresponding to the first arc groove 4;

[0011] The cover plate 7 and the fixed base 1 are fixedly connected by the first and second rectangular slots and screws.

[0012] Further, the base groove 2 is an irregular column, and the irregular column is formed by symmetrically cutting off two triangular prism parts on the left and right sides of a regular quadrangular prism placed sideways.

[0013] Further, the vertical projection of the central symmetry axis of the sideways placed regular quadrangular prism coincides with the vertical projection of the central symmetry axis perpendicular to the extension direction of the steps.

[0014] Further, the first round hole 3 and the second round hole 6 are through holes and there is a thread inside the round holes.

[0015] Further, a layer of flexible rubber is provided on the surfaces of the first arc groove 4 and the second arc groove 10.

[0016] Further, there is a thread inside the first rectangular slot 5 and the second rectangular slot 9. The first rectangular slot 5 and the second rectangular slot 9 are threadedly connected by screws, so that the cover plate 7 is fixedly connected to the fixed base 2.

[0017] Further, the top of the first arc groove 4 extends a certain distance towards the first round hole 3, and this distance can prevent the device passing through the arc groove from being misaligned with the splicing seam when the sliding card slot 8 of the cover plate 7 is docked with the base groove 2 of the fixed base 1 and the fixed base 1 and the cover plate 7 are spliced.

[0018] From the above technical solutions, the beneficial technical effects of the present utility model are as follows:

[0019] 1. The utility model can fix the monitoring unit on each bridge span by simple and reliable technical means, and can realize chain connection of each monitoring unit to obtain a chain-type monitoring unit, so as to monitor in real time whether the bridge is deformed or collapsed through the chain-type monitoring unit.

[0020] 2. The utility model increases the friction between the arc-shaped groove and the chain-type monitoring unit passing through the arc-shaped groove by arranging flexible rubber in the arc-shaped groove, ensuring that the chain-type monitoring unit is more stable when moving or positioning.

[0021] 3. The utility model extends a certain distance from the top of the first arc towards the direction of the first round hole to avoid the misalignment of the splicing seam when the sliding card slot of the cover plate is docked with the base groove of the fixed base and the equipment passing through the arc-shaped groove is spliced with the fixed base and the cover plate, thereby reducing the influence of the external environment and the like on the chain-type monitoring unit to be fixed.

[0022] 4. The utility model respectively arranges corresponding base grooves and sliding card slots on the base and the cover plate to realize the precise docking of the cover plate and the base groove, and the connection is tight and not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0024] Figure 1 Schematic diagram of the fixing device for the chain-type monitoring unit applicable to bridge collapse in the embodiment of the utility model;

[0025] Figure 2 Schematic diagram of the fixed base in the embodiment of the utility model;

[0026] Figure 3 Schematic diagram of the base groove in the embodiment of the utility model;

[0027] Figure 4 Schematic diagram of the cover plate in the embodiment of the utility model.

[0028] Reference numerals:

[0029] 1 - Fixed base, 2 - Base groove, 3 - First round hole, 4 - First arc-shaped groove, 5 - First rectangular card slot, 6 - Second round hole, 7 - Cover plate, 8 - Sliding card slot, 9 - Second rectangular card slot, 10 - Second arc-shaped groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The embodiments of the technical solution of the present utility model will be described in detail below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, and therefore are only examples and cannot be used to limit the protection scope of the present utility model.

[0031] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present utility model belongs.

[0032] Embodiment

[0033] This embodiment provides a fixing device applicable to a chain monitoring unit for bridge collapse, as Figure 1 shown, including: a fixing base 1 and a cover plate 7;

[0034] As Figure 2 shown, the fixing base 1 is of a three-layer stepped type. A base groove 2 is provided on the central symmetry axis perpendicular to the extending direction of the steps on the first layer of the steps. First round holes 3 are provided at symmetric positions on both sides of the base groove 2. The kick surface between the first layer and the second layer of the steps is a first arc groove 4. The top of the first arc groove 4 extends a certain distance towards the first round holes 3. This distance can prevent the device passing through the arc groove from being misaligned with the splicing seam when the sliding card slot 8 of the cover plate 7 is butted with the base groove 2 of the fixing base 1, so as to reduce the influence of the external environment, etc. on the chain monitoring unit to be fixed; Two first rectangular card slots 5 are provided on the second layer of the steps, and the two first rectangular card slots 5 are symmetrically arranged on both sides of the horizontal extension line of the central symmetry axis of the base groove 2. Two second round holes 6 are provided on the third layer of the steps, and the two second round holes 6 are symmetrically arranged on both sides of the horizontal extension line of the central symmetry axis of the base groove 2;

[0035] In one embodiment, the base groove 2 is an irregular column, as Figure 3 shown, and the irregular column is formed by symmetrically cutting off two triangular prism parts on the left and right sides of a regular quadrangular prism placed sideways.

[0036] In one embodiment, the vertical projection of the central symmetry axis of the sideways placed regular quadrangular prism coincides with the vertical projection of the central symmetry axis perpendicular to the extending direction of the steps.

[0037] In one embodiment, the first round holes 3 and the second round holes 6 are through holes and threads are provided inside the round holes.

[0038] In one embodiment, as Figure 4As shown, the cover plate 7 is a two-layer reverse stepped type corresponding to the first and second stepped layers of the fixed base; the cover plate is provided with a sliding card slot 8 corresponding to the base groove 2 of the base, a second rectangular card slot 9 corresponding to the first rectangular card slot 5, and a second arc-shaped groove 10 corresponding to the first arc-shaped groove 4; a layer of flexible rubber is provided on the surfaces of the first arc-shaped groove 4 and the second arc-shaped groove 10.

[0039] In one embodiment, the cover plate 7 and the fixed base 1 are fixedly connected by the first and second rectangular grooves and screws. Specifically, threads are provided in the first rectangular groove 5 and the second rectangular groove 9, and the first rectangular groove 5 and the second rectangular groove 9 are threadedly connected by screws, so that the cover plate 7 is fixedly connected to the fixed base 2.

[0040] In one embodiment, rust prevention, high brightness and other treatments are performed on the surface of the fixing device of the bridge collapse chain monitoring unit, which is convenient for relevant personnel to identify while ensuring the normal operation of the fixing device.

[0041] In one embodiment, the implementation process of the fixing device of the bridge collapse chain monitoring unit:

[0042] First, determine the installation position of the fixing device, and drill 4 holes corresponding to the fixed base on the protective fence or main beam of the bridge side concrete pouring through mechanical equipment such as electric drills Figure 2 and clean the residue in the holes;

[0043] Secondly, install the fixed base, use expansion screws to fix the fixed base to the protective fence or main beam of the bridge side concrete pouring through the 4 holes reserved on the fixing device, then place the monitoring unit in the first arc-shaped card slot 4 of the fixed base, and slide and install the cover plate 7 on the fixed base through the sliding card slot 8 and the base groove 2 of the base. Adjust the position of the cover plate 7 to ensure that the cover plate 7 and the fixed base 1 have clamped the monitoring unit, and fix the fixed base and the cover plate with screws at the first rectangular card slot 5 and the second square card slot 9;

[0044] Finally, apply glass glue or planting glue at the upper connection of the cover plate and the fixed base to prevent rainwater and the like from seeping into the monitoring unit and reducing the service life of the bridge collapse chain monitoring unit. At the same time, rust prevention, high brightness and other treatments are performed on the surface of the fixing device of the bridge collapse chain monitoring unit.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the specification of the present invention.

Claims

1. A fixing device for a bridge collapse chain monitoring unit, characterized in that: include: Fixing the base (1) and the cover plate (7); The fixed base (1) is a three-layer stepped type, a base groove (2) is provided on the central symmetry axis of the first layer of the step perpendicular to the extension direction of the step, first circular holes (3) are provided at symmetrical positions on both sides of the base groove (2), the risers of the first layer of the step and the second layer of the step are first arc grooves (4), the top of the first arc groove (4) extends a certain distance in the direction of the first circular hole (3), two first rectangular card grooves (5) are provided on the second layer of the step, the two first rectangular card grooves (5) are symmetrically arranged on both sides of the horizontal extension line of the central symmetry axis of the base groove (2), and two second circular holes (6) are provided on the third layer of the step, the two second circular holes (6) are symmetrically arranged on both sides of the horizontal extension line of the central symmetry axis of the base groove (2); The cover plate (7) is a two-layer inverse stepped type corresponding to the first and second stepped layers of the fixed base; The cover plate is provided with a sliding groove (8) corresponding to the base groove (2), a second rectangular groove (9) corresponding to the first rectangular groove (5), and a second arc groove (10) corresponding to the first arc groove (4); The cover plate (7) is fixedly connected to the fixed base (1) via first and second rectangular grooves and screws.

2. A fixing device for a bridge collapse chain monitoring unit according to claim 1, characterized in that: The base groove (2) is an irregular column, which is formed by symmetrically cutting off two triangular prism parts on the left and right sides of a regular quadrangular prism placed sideways.

3. A fixing device for a bridge collapse chain monitoring unit according to claim 2, characterized in that: The vertical projection of the central symmetry axis of the inverted regular quadrangular prism coincides with the vertical projection of the central symmetry axis perpendicular to the step extension direction.

4. A fixing device for a bridge collapse chain monitoring unit according to claim 1, characterized in that: The first circular hole (3) and the second circular hole (6) are through holes and threads are provided inside the circular holes.

5. A fixing device for a bridge collapse chain monitoring unit according to claim 1, characterized in that: A layer of flexible rubber is provided on the surface of the first arc-shaped groove (4) and the second arc-shaped groove (10).

6. A fixing device for a bridge collapse chain monitoring unit according to claim 1, characterized in that: The first rectangular groove (5) and the second rectangular groove (9) are provided with threads, and the first rectangular groove (5) and the second rectangular groove (9) are threadedly connected by screws, so that the cover plate (7) is fixedly connected to the fixed base (2).

7. A fixing device for a bridge collapse chain monitoring unit according to claim 1, characterized in that: The top of the first arc-shaped groove (4) extends a certain distance in the direction of the first circular hole (3), and the distance can prevent the device passing through the arc-shaped groove from being misaligned with the joint seam when the sliding groove (8) of the cover plate (7) is connected to the base groove (2) of the fixed base (1).

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