Bridge guardrail performance detection device

Abstract

The utility model discloses a bridge guardrail performance detection device which comprises a base, a groove is formed in the outer wall of the top of the base, an electric push rod is fixed to the inner wall of the bottom of the groove, an insertion rod is fixed to an output shaft of the electric push rod, a movable block is slidably connected to the outer wall of the top of the base, and an electric hydraulic push rod is fixed to the outer wall of one side of the movable block. An inserting hole is formed in the outer wall of the top of the pushing block, an inserting rod is inserted into the inner wall of the inserting hole, a plurality of telescopic rods are fixed to the outer wall of the pushing block, pressing heads are fixed to the telescopic ends of the telescopic rods, wear-resisting pads are arranged on the outer walls of the pressing heads, and a pressure sensor is fixed to the outer wall of one side of the pushing block; a shielding frame and a set of clamping plates are fixed to the outer wall of the top of the base, an L-shaped plate is fixed to the outer wall of one side of each clamping plate, and a PLC is fixed to the outer wall of one side of the shielding frame. According to the utility model, impact forces in different directions can be applied to one side of the guardrail through the pressure head at one end of the push block, and the anti-collision performance of the guardrail can be comprehensively detected.

Description

Technical Field

[0001] This utility model relates to the field of guardrail collision testing technology, and in particular to a bridge guardrail performance testing device. Background Technology

[0002] Bridge railings are guardrails installed on bridges to prevent out-of-control vehicles from going off the bridge. They serve to prevent vehicles from breaking through, passing under, or overturning the bridge, and also enhance the aesthetics of the bridge structure. When conducting crash tests on railings, a collision trolley is used indoors to conduct impact tests on the railings. However, because the collision trolley's path is straight, this type of test can only simulate a frontal impact on the railing. In actual use, bridge railings are mostly subjected to side impacts from vehicles. Therefore, it is not possible to quickly adjust the impact angle between the railing and the collision trolley based on the actual test results.

[0003] A search revealed a Chinese patent application with patent number CN202323317551.4, which discloses a traffic guardrail buffer performance testing device. The device includes a base and a top plate. The two ends of the top of the base are respectively fixedly connected to a movable locking component and a fixed locking component for fixing the two sides of the guardrail. However, the above technical solution can only impact the guardrail vertically through the impact seat, and cannot impact the guardrail from different directions. Therefore, it still has the problem of not being able to impact the guardrail from multiple angles, resulting in an incomplete test result for the guardrail's anti-collision performance. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a bridge railing performance testing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A bridge railing performance testing device includes a base, a groove on the top outer wall of the base, an electric push rod fixed to the bottom inner wall of the groove, an insertion rod fixed to the output shaft of the electric push rod, a movable block slidably connected to the top outer wall of the base, an electric hydraulic push rod fixed to one side outer wall of the movable block, a push block fixed to the output shaft of the electric hydraulic push rod, an insertion hole on the top outer wall of the push block, and an insertion rod inserted into the inner wall of the insertion hole.

[0007] Multiple telescopic rods are fixed to the outer wall of the push block. A pressure head is fixed to the telescopic end of the telescopic rod. A wear-resistant pad is provided on the outer wall of the pressure head. A pressure sensor is fixed to one side of the outer wall of the push block.

[0008] As a further improvement of this utility model: a shielding frame and a set of clamps are fixed to the top outer wall of the base, and an L-shaped plate is fixed to one side of the clamps.

[0009] As a further scheme of the utility model: the outer wall of one side of the shielding frame is fixed with a PLC controller, and the electric hydraulic push rod, the pressure sensor and the electric push rod are electrically connected with the PLC controller respectively.

[0010] As a further scheme of the utility model: the outer wall of the top of the base is provided with an arc-shaped sliding groove, and the movable block is slidingly connected to the inner wall of the arc-shaped sliding groove.

[0011] As a further scheme of the utility model: the outer wall of the top of the base is fixed with an arc-shaped baffle, and a plurality of limiting clamping plates are fixed to the outer wall of one side of the arc-shaped baffle, and one limiting clamping plate is fixed to the outer wall of one side of the movable block.

[0012] As a further scheme of the utility model: the outer wall of one side of the limiting clamping plate is slidingly connected with a plug.

[0013] As a further scheme of the utility model: the outer wall of the electric hydraulic push rod is fixed with a guide sleeve, and the outer walls of the two sides of the push block are respectively fixed with supporting plates, and the guide sleeve and the supporting plates are respectively slidingly connected to the outer wall of the top of the base.

[0014] As a further scheme of the utility model: the outer wall of one side of the shielding frame is provided with a protective door, and the outer wall of the protective door is provided with a tempered glass protective window.

[0015] The utility model discloses beneficial effects are:

[0016] 1. push the movable block and slide on the top of the base as a whole, at this moment, the electric hydraulic push rod and the movable block as a whole will rotate around the push block under the support of the plug hole and the plug rod, after sliding the movable block to the corresponding angle, the staff can move to one side of the shielding frame, then the plug rod is moved downward under the control of the electric push rod driven by the PLC controller, so that the plug rod moves out from the inside of the plug hole, then the electric hydraulic push rod is controlled by the PLC controller and the push block is pushed forward, so that the impact force in the corresponding direction is exerted on one side of the guardrail through the pressure head at one end of the push block, and the anti-collision performance of the guardrail is comprehensively detected.

[0017] 2. after the staff rotates the movable block to the corresponding angle, the plug can be inserted into the corresponding two groups of limiting clamping plates between the movable block and the arc-shaped baffle, so that the movable block as a whole is supported and limited by the plug, and the stability of the electric hydraulic push rod when rotating to the corresponding angle and pushing the push block forward is improved.

[0018] 3. the guide sleeve and the supporting plate can support and guide the electric hydraulic push rod and the push block as a whole, improve the stability of the electric hydraulic push rod and the push block as a whole when moving and rotating, and the arc-shaped sliding groove can guide the movable block sliding on the outer wall of the base, improve the stability of the movable block as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A kind of bridge guardrail performance detection device's main view structural schematic diagram is proposed for the utility model;

[0020] Figure 2 A kind of bridge guardrail performance detection device's side view structural schematic diagram is proposed for the utility model;

[0021] Figure 3 A kind of bridge guardrail performance detection device's clamping plate structural schematic diagram is proposed for the utility model;

[0022] Figure 4 A kind of bridge guardrail performance detection device's movable block structural schematic diagram is proposed for the utility model;

[0023] Figure 5 A kind of bridge guardrail performance detection device's push block structural schematic diagram is proposed for the utility model;

[0024] Figure 6 A kind of bridge guardrail performance detection device's circuit flow schematic diagram is proposed for the utility model.

[0025] In the drawing: 1-base, 2-arc baffle, 3-shielding frame, 4-clamping plate, 5-protection door, 6-L type plate, 7-limiting clamping plate, 8-arc-shaped sliding slot, 9-insert block, 10-movable block, 11-electric hydraulic push rod, 12-guide sleeve, 13-supporting plate, 14-groove, 15-push block, 16-pressure sensor, 17-pressing head, 18-wear-resistant pad, 19-telescopic rod, 20-insert hole, 21-insert rod, 22-electric push rod, 23-PLC controller. DETAILED DESCRIPTION

[0026] The technical solutions of the patent will be further described in detail below in combination with specific embodiments.

[0027] The embodiments of the patent are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the patent, and cannot be understood as limiting the patent.

[0028] Example 1

[0029] A kind of bridge guardrail performance detection device, such as Figures 1-6As shown, including the base 1, the top outer wall of the base 1 is provided with a groove 14, the bottom inner wall of the groove 14 is fixedly connected with an electric push rod 22, the output shaft of the electric push rod 22 is fixedly connected with a plug rod 21, the top outer wall of the base 1 is slidably connected with a movable block 10, the outer wall of one side of the movable block 10 is fixedly connected with an electric hydraulic push rod 11, the output shaft of the electric hydraulic push rod 11 is fixedly connected with a push block 15, the top outer wall of the push block 15 is provided with a insertion hole 20, and the plug rod 21 is inserted into the inner wall of the insertion hole 20;

[0030] The outer wall of the push block 15 is fixedly connected with a plurality of telescopic rods 19, the telescopic end of the telescopic rod 19 is fixedly connected with a pressure head 17, the outer wall of the pressure head 17 is provided with a wear-resistant pad 18, and the outer wall of one side of the push block 15 is fixedly connected with a pressure sensor 16.

[0031] The top outer wall of the base 1 is fixedly connected with a shielding frame 3 and a set of clamping plates 4, and the outer wall of one side of the clamping plate 4 is fixedly connected with an L-shaped plate 6.

[0032] The outer wall of one side of the shielding frame 3 is fixedly connected with a PLC controller 23, and the electric hydraulic push rod 11, the pressure sensor 16 and the electric push rod 22 are electrically connected with the PLC controller 23.

[0033] First, the guardrail to be detected is inserted between the two sets of clamping plates 4 and the L-shaped plate 6, and the guardrail is clamped and fixed by the clamping plates 4 and the L-shaped plate 6, then the movable block 10 is pushed to slide on the top of the base 1, at this time the electric hydraulic push rod 11 and the movable block 10 as a whole will rotate around the push block 15 under the support of the insertion hole 20 and the plug rod 21, after the movable block 10 is slid to the corresponding angle, the staff can move to one side of the shielding frame 3, then the plug rod 21 is driven downward by the PLC controller 23 to move the electric push rod 22, so that the plug rod 21 moves out of the insertion hole 20, then the PLC controller 23 controls the electric hydraulic push rod 11 to push the push block 15 to move forward, so that the pressure head 17 at one end of the push block 15 applies a corresponding direction impact force to one side of the guardrail, and the anti-collision performance of the guardrail is comprehensively detected;

[0034] When the pressure head 17 collides with one side of the guardrail, the pressure head 17 will extrude one side of the pressure sensor 16, at this time the pressure received by the pressure sensor 16 is the impact force received by the guardrail, and the pressure sensor 16 will transmit the received pressure value to the PLC controller 23 in real time, when the pressure value reaches the set value, the PLC controller 23 will control the electric hydraulic push rod 11 to drive the push block 15 to move back and reset, so as to complete the impact resistance test of the guardrail.

[0035] As shown in Figure 4 The top outer wall of the base 1 is provided with an arc-shaped sliding groove 8, and the movable block 10 is slidably connected to the inner wall of the arc-shaped sliding groove 8; the arc-shaped sliding groove 8 can guide the movable block 10 sliding on the outer wall of the base 1, and improve the stability of the movable block 10 as a whole.

[0036] As Figures 3-4 shown, the top outer wall of the base 1 is fixed with an arc-shaped baffle 2, and a plurality of limiting clamping plates 7 are fixed on one side outer wall of the arc-shaped baffle 2, and one set of limiting clamping plates 7 is fixed on one side outer wall of the movable block 10;

[0037] The opposite side outer wall of the limiting clamping plate 7 is slidably connected with the plug 9; after the movable block 10 is rotated to the corresponding angle, the plug 9 can be inserted into the corresponding two sets of limiting clamping plates 7 between the movable block 10 and the arc-shaped baffle 2, so as to support and limit the whole movable block 10 through the plug 9, thereby improving the stability when the electric hydraulic push rod 11 is rotated to the corresponding angle and pushes the push block 15 to move forward.

[0038] As Figure 1 and Figure 4 shown, the outer wall of the electric hydraulic push rod 11 is fixed with a guide sleeve 12, and the two side outer walls of the push block 15 are respectively fixed with support plates 13, and the guide sleeve 12 and the support plates 13 are respectively slidably connected to the top outer wall of the base 1; the guide sleeve 12 and the support plates 13 can support and guide the whole electric hydraulic push rod 11 and the push block 15, thereby improving the stability of the whole electric hydraulic push rod 11 and the push block 15 when moving and rotating.

[0039] Working principle: insert the guardrail to be detected between the two sets of clamping plates 4 and the L-shaped plate 6, clamp and fix the guardrail through the clamping plates 4 and the L-shaped plate 6, then push the whole movable block 10 to slide on the top of the base 1, at this time the whole electric hydraulic push rod 11 and the movable block 10 will rotate around the push block 15 under the support of the plug hole 20 and the plug rod 21, after the movable block 10 is slid to the corresponding angle, the worker can move to one side of the shielding frame 3, then control the electric push rod 22 to drive the plug rod 21 to move downward through the PLC controller 23, so that the plug rod 21 moves out from the inside of the plug hole 20, then the PLC controller 23 controls the electric hydraulic push rod 11 to push the push block 15 to move forward, so as to apply a corresponding direction impact force to one side of the guardrail through the pressure head 17 at one end of the push block 15.

[0040] Example 2

[0041] A bridge guardrail performance detection device, as Figures 1-2 shown, the following improvements are made on the basis of example 1: a protective door 5 is arranged on one side outer wall of the shielding frame 3, and a tempered glass protective window is arranged on the outer wall of the protective door 5; the worker can observe the impact resistance test of the guardrail outside the protective door 5, and after the guardrail detection is completed, the protective door 5 can be opened to replace the guardrail.

[0042] Working principle: the worker can observe the impact resistance test of the guardrail outside the protective door 5.

[0043] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A bridge railing performance testing device, comprising a base (1), characterized in that, The base (1) has a groove (14) on its top outer wall. An electric push rod (22) is fixed to the bottom inner wall of the groove (14). An insert rod (21) is fixed to the output shaft of the electric push rod (22). A movable block (10) is slidably connected to the top outer wall of the base (1). An electric hydraulic push rod (11) is fixed to one side outer wall of the movable block (10). A push block (15) is fixed to the output shaft of the electric hydraulic push rod (11). An insertion hole (20) is opened on the top outer wall of the push block (15). The insert rod (21) is inserted into the inner wall of the insertion hole (20). Multiple telescopic rods (19) are fixed to the outer wall of the push block (15). A pressure head (17) is fixed to the telescopic end of the telescopic rod (19). A wear-resistant pad (18) is provided on the outer wall of the pressure head (17). A pressure sensor (16) is fixed to one side of the outer wall of the push block (15).

2. The bridge railing performance testing device according to claim 1, characterized in that, The base (1) has a shielding frame (3) and a set of clamps (4) fixed on the top outer wall, and an L-shaped plate (6) is fixed on one side of the clamps (4).

3. The bridge railing performance testing device according to claim 2, characterized in that, A PLC controller (23) is fixed to one side of the outer wall of the shielding frame (3). The electric hydraulic push rod (11), pressure sensor (16) and electric push rod (22) are electrically connected to the PLC controller (23).

4. The bridge railing performance testing device according to claim 2, characterized in that, The base (1) has an arc-shaped groove (8) on its top outer wall, and the movable block (10) is slidably connected to the inner wall of the arc-shaped groove (8).

5. A bridge railing performance testing device according to claim 4, characterized in that, An arc-shaped baffle (2) is fixed to the top outer wall of the base (1), and multiple sets of limiting plates (7) are fixed to one side outer wall of the arc-shaped baffle (2). One set of limiting plates (7) is fixed to one side outer wall of the movable block (10).

6. A bridge railing performance testing device according to claim 5, characterized in that, The limiting plate (7) is slidably connected to the outer wall on the opposite side by an insert (9).

7. A bridge railing performance testing device according to claim 3, characterized in that, The outer wall of the electric hydraulic push rod (11) is fixed with a guide sleeve (12), and the outer walls of the push block (15) are respectively fixed with support plates (13). The guide sleeve (12) and the support plates (13) are slidably connected to the top outer wall of the base (1).

8. A bridge railing performance testing device according to claim 3, characterized in that, A protective door (5) is provided on one side of the outer wall of the shielding frame (3), and a tempered glass protective window is provided on the outer wall of the protective door (5).

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