A highway guardrail strength testing device

Abstract

The present invention discloses a highway guardrail strength testing device, comprising a testing seat and a guardrail body to be tested and arranged on the testing seat, and also comprising: a clamping unit, arranged on the testing seat; a striking unit, arranged on one side of the clamping unit, and used to strike the guardrail body with different forces and angles after clamping. Through the arrangement of the clamping unit and the striking unit, the testing device can quickly simulate the actual buried depth of the guardrail body and the magnitude of the force of the soil on the upright poles of the guardrail body after burying in the testing stage, so as to pre-detect the optimal buried depth of the guardrail body when constructing the road section, so as to avoid the construction difficulties caused by the excessive buried depth in the later stage and the influence of the guardrail body's protective strength not meeting the standard caused by the shallow buried depth.

Description

Technical Field

[0001] The invention relates to the technical field of highway guardrail detection, in particular to a highway guardrail strength detection device. Background Art

[0002] In order to ensure the stability and strength of highway guardrails under vehicle collision or external force, highway guardrails are tested for impact or bearing capacity during the testing process to ensure that the strength of the guardrails meets the relevant standards. At present, when testing the strength of guardrails, the guardrails are generally fixed and then impacted to determine their strength based on deformation. However, in actual testing, the effect of the buried depth of the guardrail on its strength is not tested, which results in a relatively simple and inaccurate test result.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a highway guardrail strength detection device to solve the problem raised in the above background technology that during actual detection, the influence of the buried depth of the guardrail on the strength of the guardrail is not detected, which will lead to a relatively single detection result.

[0005] To achieve the above object, the present invention provides the following technical solution: a highway guardrail strength detection device, comprising a detection seat and a guardrail body to be detected arranged on the detection seat, and further comprising:

[0006] The clamping unit includes a plurality of clamping assemblies symmetrically arranged on both sides of the guardrail body for clamping the upright poles of the guardrail body and a plurality of power assemblies slidably arranged on the detection seat for carrying the plurality of clamping assemblies and adjusting the distance between the clamping assemblies of the same group;

[0007] The striking unit is arranged on one side of the clamping unit, and is used for striking with different forces and angles after the clamping unit clamps the guardrail body.

[0008] Preferably, the power assembly comprises:

[0009] A multi-layer clamping plate is slidably arranged on the guardrail body and symmetrically arranged on both sides of the guardrail body, and a plurality of groups of the clamping components are correspondingly arranged on each layer of the clamping plate;

[0010] A plurality of groups of power parts are arranged on the detection seat, and are used to drive each layer of the clamping plates to move synchronously toward the guardrail body, so that the clamping assembly can clamp the vertical poles on the guardrail body at different depths with different strengths.

[0011] Preferably, the power member comprises:

[0012] A bidirectional threaded rod is threadedly arranged on a clamping plate that is symmetrically arranged on the same layer, and the threads on the bidirectional threaded rod are arranged to rotate forward and reversely with the guardrail body as the symmetry center;

[0013] The rotating motor is connected to the end of the bidirectional threaded rod and is used to drive the bidirectional threaded rod to rotate. The rotating motor is fixed on the detection seat.

[0014] Preferably, the clamping assembly comprises:

[0015] The clamping half ring is arranged on one side of the guardrail body;

[0016] A slide rod, one end of which is fixed on the clamping half ring, and the other end of which is slidably provided with a slide cylinder, and the slide cylinder is fixed on the clamping plate;

[0017] A clamping spring is arranged in the slide cylinder, one end of which abuts against the inner wall of the slide cylinder, and the other end abuts against the slide rod;

[0018] The auxiliary parts are symmetrically arranged on both sides of the slide bar and are used to stabilize the slide bar sliding in the slide cylinder.

[0019] Preferably, the auxiliary component comprises:

[0020] A first rotating rod, one end of which is rotatably arranged at an end of the sliding rod close to the clamping half ring;

[0021] The second rotating rod has one end rotatably arranged at the end of the first rotating rod away from the sliding rod, and the other end rotatably arranged with the clamping plate.

[0022] Preferably, the striking unit comprises:

[0023] The striking seat is arranged on the detection seat on the other side of the clamping unit;

[0024] A sliding assembly is disposed between the detection seat and the striking seat, and is used to drive the striking seat to slide on the detection seat;

[0025] The striking component is arranged on the detection seat and is used to impact the guardrail body from any angle.

[0026] Preferably, the sliding assembly comprises:

[0027] Two sets of guide rods are fixedly arranged on the detection seat, and the striking seat is slidably arranged on the guide rods;

[0028] The first threaded rod is threadedly arranged on the striking seat, one end of the first threaded rod is rotatably arranged on the detection seat, and the other end of the first threaded rod penetrates the detection seat and is provided with a sliding motor, and the sliding motor is fixed on the detection seat through a fixing plate.

[0029] Preferably, the striking assembly comprises:

[0030] A striking rod, arranged on the striking seat;

[0031] An adjusting member, arranged on the striking seat, for adjusting the inclination angle of the striking rod to change the striking angle of the striking rod;

[0032] The striking head is arranged at the end of the striking rod, and a clamp and a piece are arranged between the striking head and the striking rod for taking and installing the striking head from the end of the striking rod.

[0033] Preferably, the adjusting member comprises a first rotating seat, which is horizontally rotatably arranged on the striking seat, a second rotating seat is arranged on the first rotating seat, the second rotating seat is vertically rotatably arranged on the first rotating seat, and the striking rod is arranged in the vertical direction of the second rotating seat;

[0034] The angle adjustment of the first rotating seat and the second rotating seat is adjusted by a micro motor.

[0035] Preferably, the card and the piece include:

[0036] An elastic protrusion is arranged at the end of the striking rod;

[0037] A card and a slot are provided on the striking head and are used for the elastic protrusion to pop out and snap in;

[0038] A connecting slot, one end of which is connected to the card and the slot, and the other end of which passes through the striking head and extends to the outside;

[0039] A pressing rod is limitedly slidably arranged in the connecting groove, one end of which abuts against the elastic protrusion and the other end of which extends to the outside of the striking head;

[0040] The card and the spring are arranged in the connecting groove and sleeved on the pressing rod.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] Through the clamping unit and the striking unit in the detection equipment, the present invention can quickly simulate the actual buried depth of the guardrail body and the magnitude of the force of the soil on the upright poles of the guardrail body after burial during the detection stage, so as to pre-detect the optimal buried depth of the guardrail body when constructing the road section, thereby avoiding construction difficulties caused by excessive buried depth in the later stage and the influence of shallow buried depth on the protective strength of the guardrail body not meeting the standard.

[0043] Through the setting of the striking unit, the present invention can implement a striking test on the guardrail body clamped by the clamping unit through different forces and angles, so that a more accurate embedding depth that meets the standard can be obtained through the data obtained from different comparative test examples, thereby obtaining a more practical embedding depth, which is convenient for the direct installation of the guardrail body at a later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0045] Figure 2 This is another overall structural diagram of the present invention from another perspective;

[0046] Figure 3 It is an overall schematic diagram of the clamping unit of the present invention;

[0047] Figure 4 A partial cross-sectional view of the clamping assembly of the present invention;

[0048] Figure 5 It is a front cross-sectional view of the card and the component of the present invention;

[0049] Figure 6 for Figure 2 Enlarged view of point A in the middle.

[0050] Figure numerals: 1-detection seat; 2-guardrail body; 3-clamping unit; 31-clamping plate; 32-power piece; 321-bidirectional threaded rod; 322-rotating motor; 33-clamping assembly; 331-clamping half ring; 332-sliding rod; 333-sliding cylinder; 334-clamping spring; 335-first rotating rod; 336-second rotating rod; 4-striking unit; 41-striking seat; 42-sliding assembly; 4 21-guide rod; 422-first threaded rod; 423-sliding motor; 424-stabilizing member; 43-striking assembly; 431-striking rod; 432-adjusting member; 4321-first rotating seat; 4322-second rotating seat; 433-striking head; 434-clamping member; 4341-elastic protrusion; 4342-clamping groove; 4343-connecting groove; 4344-pressing rod; 4345-clamping spring. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] See also Figure 1-6 The present invention provides a technical solution: a highway guardrail strength detection device, comprising a detection seat 1 and a guardrail body 2 to be detected and arranged on the detection seat 1, and further comprising:

[0053] The clamping unit 3 includes a plurality of clamping components 33 symmetrically arranged on both sides of the guardrail body for clamping the upright poles of the guardrail body 2 and a plurality of power components slidably arranged on the detection seat 1 for carrying the plurality of clamping components 33 and adjusting the distance between the clamping components 33 of the same group;

[0054] The striking unit 4 is arranged at one side of the clamping unit 3, and is used for the clamping unit 3 to strike the guardrail body 2 with different forces and angles after the guardrail body 2 is clamped.

[0055] Wherein, the power assembly comprises:

[0056] A multi-layer clamping plate 31 is slidably disposed on the guardrail body 2 and symmetrically disposed on both sides of the guardrail body 2, and a plurality of groups of the clamping components 33 are correspondingly disposed on each layer of the clamping plate 31;

[0057] A plurality of power components 32 are arranged on the detection seat 1, and are used to drive each layer of the clamping plate 31 to move synchronously toward the guardrail body 2, so that the clamping assembly can clamp the vertical poles on the guardrail body 2 at different depths with different strengths;

[0058] Among them, when in use, multiple groups of clamping components 33 cooperate with the power components to clamp the vertical poles of the guardrail body 2 with different strengths, so that the clamping components 33 simulate the buried depth of the vertical poles in different soil environments and the simulation of the fixing force of the vertical poles by the soil after the vertical poles are buried. At the same time, by setting multiple clamping components 33 on the same layer, guardrail bodies 2 of different lengths can be clamped, so as to detect the influence of the length of the guardrail body 2 on the strength of the guardrail body 2;

[0059] It should be noted that when the guardrail body 2 is placed on the clamping assembly 33, the clamping assembly 33 on the lowest clamping plate 31 will fix the vertical pole of the guardrail body 2, and then the clamping assembly 33 on the clamping plates 31 of different layers on the upper layer can simulate the embedding of the vertical pole at different depths, and then the clamping force of the vertical pole by the clamping assembly 33 can be adjusted to simulate the soil acting on the vertical pole of the guardrail body 2 when the vertical pole is inserted into different soil environments. In this way, the best embedding depth of the guardrail body 2 can be detected during the detection stage, and the strength requirement of the guardrail body 2 can also be met during actual use, so as to avoid the increase of construction difficulty due to excessive embedding depth, and the protection strength of the guardrail body 2 cannot meet the requirements due to low embedding depth.

[0060] In addition, the force of the soil can be measured by inserting a pressure sensor into the soil to provide feedback on the pressure sensor caused by the soil at different depths, thereby adjusting the clamping force of the clamping unit 3 accordingly. The symmetrically arranged clamping plates 31 are then driven to slide by the power member 32 described below, and the clamping force of the clamping assembly 33 is adjusted by adjusting the spacing between the clamping plates 31 on the same layer.

[0061] Wherein, the power member 32 comprises:

[0062] A bidirectional threaded rod 321 is threadedly arranged on the clamping plate 31 which is symmetrically arranged on the same layer, and the threads on the bidirectional threaded rod 321 are arranged to rotate forward and reversely with the guardrail body 2 as the symmetry center;

[0063] The rotating motor 322 is connected to the end of the bidirectional threaded rod 321 and is used to drive the bidirectional threaded rod 321 to rotate. The rotating motor 322 is fixed on the detection seat 1.

[0064] In addition, the clamping assembly 33 includes:

[0065] The clamping half ring 331 is arranged on one side of the guardrail body 2;

[0066] A slide rod 332, one end of which is fixed on the clamping half ring 331, and the other end of which is slidably provided with a slide cylinder 333, wherein the slide cylinder 333 is fixed on the clamping plate 31;

[0067] The clamping spring 334 is disposed in the slide cylinder 333, one end of which abuts against the inner wall of the slide cylinder 333, and the other end of which abuts against the slide rod 332;

[0068] The auxiliary parts are symmetrically arranged on both sides of the slide bar 332 to stabilize the slide bar 332 sliding in the slide cylinder 333 .

[0069] Wherein, the auxiliary parts include:

[0070] A first rotating rod 335, one end of which is rotatably disposed on one end of the sliding rod 332 close to the clamping half ring 331;

[0071] The second rotating rod 336 has one end rotatably disposed at the end of the first rotating rod 335 away from the sliding rod 332 , and the other end rotatably disposed with the clamping plate 31 .

[0072] Wherein, the striking unit 4 comprises:

[0073] The striking seat 41 is arranged on the detection seat 1 at the other side of the clamping unit 3;

[0074] The sliding assembly 42 is disposed between the detection seat 1 and the striking seat 41, and is used to drive the striking seat 41 to slide on the detection seat 1;

[0075] The striking component 43 is disposed on the detection seat 1 and is used to impact the guardrail body 2 from different angles to detect the strength of the guardrail body 2.

[0076] Meanwhile, the sliding assembly 42 includes:

[0077] Two sets of guide rods 421 are fixedly arranged on the detection seat 1, and the striking seat 41 is slidably arranged on the guide rods 421;

[0078] A first threaded rod 422 is threadedly disposed on the striking seat 41, one end of the first threaded rod 422 is rotatably disposed on the detection seat 1, and the other end of the first threaded rod 422 penetrates the detection seat 1 and is provided with a sliding motor 423, and the sliding motor 423 is fixed to the detection seat 1 through a fixing plate;

[0079] The stabilizing member 424 is arranged between the striking seat 41 and the detection seat 1. The stabilizing member 424 includes a connecting rod, one end of which is arranged on the striking seat 41, and the other end is slidably arranged on the detection seat 1. Through the setting of the stabilizing member 424, the striking seat 41 can be supported when the striking unit is subjected to a reaction force during striking. In addition, through the setting of the sliding component 42, the position of the striking unit can be changed, thereby realizing the detection of the strength of the guardrail body 2 when the guardrail body 2 is struck at different positions.

[0080] Wherein, the striking component 43 comprises:

[0081] A striking rod 431 is disposed on the striking seat 41;

[0082] The adjusting member 432 is disposed on the striking seat 41 and is used to adjust the tilt angle of the striking rod 431 to change the striking angle of the striking rod 431;

[0083] The striking head 433 is disposed at the end of the striking rod 431, and a clamp 434 is disposed between the striking head 433 and the striking rod 431 for taking and installing the striking head 433 from the end of the striking rod 431;

[0084] The striking rod 431 is configured as an electric telescopic rod. During the striking operation, the striking force can be controlled by the extension and retraction speed of the electric telescopic rod. At the same time, the striking head 433 is detachably configured through the card and part 434. The contact area between the striking head 433 and the guardrail body 2 can be adjusted by changing the shape of the striking head 433 to detect the influence of different striking faces on the strength of the guardrail body 2 under the same force.

[0085] In addition, the adjusting member 432 includes a first rotating seat 4321, which is horizontally rotatably arranged on the striking seat 41, a second rotating seat 4322 is arranged on the first rotating seat 4321, and the second rotating seat 4322 is vertically rotatably arranged on the first rotating seat 4321, and the striking rod 431 is arranged in the vertical direction of the second rotating seat 4322;

[0086] The angles of the first rotating seat 4321 and the second rotating seat 4322 are adjusted by a micro motor.

[0087] Wherein, the card and component 434 include:

[0088] An elastic protrusion 4341 is provided at the end of the striking rod 431;

[0089] The card slot 4342 is provided on the striking head 433 and is used for the elastic protrusion 4341 to pop out and snap in;

[0090] A connecting slot 4343, one end of which is connected to the card and slot 4342, and the other end of which passes through the striking head 433 and extends to the outside;

[0091] A pressing rod 4344 is limitedly slidably disposed in the connecting groove 4343, one end of which abuts against the elastic protrusion 4341, and the other end of which extends to the outside of the striking head 433;

[0092] The card and spring 4345 are arranged in the connecting groove 4343 and sleeved on the pressing rod 4344;

[0093] When the striking head 433 needs to be replaced, the pressing rod 4344 can be pressed down, and then the elastic protrusion 4341 can be disengaged from the card and the groove 4342, and the striking head 433 can be pulled out. Then, the compressed card and spring 4345 will reset the pressing rod 4344 after compression.

[0094] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0095] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highway guardrail strength testing device, comprising a testing seat (1) and a guardrail body (2) to be tested and arranged on the testing seat (1), characterized in that: Also includes: The clamping unit (3) comprises a plurality of groups of clamping assemblies (33) symmetrically arranged on both sides of the guardrail body (2) for clamping the upright poles of the guardrail body (2), and a plurality of groups of power assemblies slidably arranged on the detection seat (1) for carrying the plurality of groups of the clamping assemblies (33) and adjusting the distance between the clamping assemblies (33) of the same group; A striking unit (4) is arranged on one side of the clamping unit (3) and is used for the clamping unit (3) to strike the guardrail body (2) with different forces and angles after the clamping unit (3) clamps the guardrail body (2); Wherein, the power assembly comprises: A multi-layer clamping plate (31) is slidably arranged on the guardrail body (2) and is symmetrically arranged on both sides of the guardrail body (2), and a plurality of groups of the clamping components (33) are correspondingly arranged on each layer of the clamping plate (31); A plurality of groups of power members (32) are arranged on the detection seat (1) and are used to drive each layer of the clamping plates (31) to move synchronously toward the guardrail body (2), so that the clamping components can clamp the uprights on the guardrail body (2) at different depths with different strengths; Wherein, the power component (32) comprises: A bidirectional threaded rod (321) is threadedly arranged on a clamping plate (31) that is symmetrically arranged on the same layer, and the threads on the bidirectional threaded rod (321) are arranged to rotate forward and reverse with the guardrail body (2) as the symmetry center; A rotating motor (322) is connected to the end of the bidirectional threaded rod (321) and is used to drive the bidirectional threaded rod (321) to rotate, wherein the rotating motor (322) is fixed on the detection seat (1); Wherein, the clamping assembly (33) comprises: A clamping half ring (331) is arranged on one side of the guardrail body (2); A slide rod (332), one end of which is fixed on the clamping half ring (331), and the other end of which is slidably provided with a slide cylinder (333), wherein the slide cylinder (333) is fixed on the clamping plate (31); A clamping spring (334) is disposed in the slide cylinder (333), one end of which abuts against the inner wall of the slide cylinder (333) and the other end of which abuts against the slide rod (332); The auxiliary parts are symmetrically arranged on both sides of the slide bar (332) and are used to stabilize the slide bar (332) sliding in the slide cylinder (333).

2. A highway guardrail strength detection device according to claim 1, characterized in that: The auxiliary parts include: A first rotating rod (335), one end of which is rotatably arranged on one end of the sliding rod (332) close to the clamping half ring (331); The second rotating rod (336) has one end rotatably disposed at the end of the first rotating rod (335) away from the sliding rod (332), and the other end rotatably disposed with the clamping plate (31).

3. The highway guardrail strength testing device according to claim 1 is characterized in that: The striking unit (4) comprises: A striking seat (41) is arranged on the detection seat (1) at the other side of the clamping unit (3); A sliding assembly (42) is disposed between the detection seat (1) and the striking seat (41) and is used to drive the striking seat (41) to slide on the detection seat (1); The striking component (43) is arranged on the detection seat (1) and is used to strike the guardrail body (2) from different angles.

4. A highway guardrail strength testing device according to claim 3, characterized in that: The sliding assembly (42) comprises: Two sets of guide rods (421) are fixedly arranged on the detection seat (1), and the striking seat (41) is slidably arranged on the guide rods (421); A first threaded rod (422) is threadedly arranged on the striking seat (41); one end of the first threaded rod (422) is rotatably arranged on the detection seat (1); the other end of the first threaded rod (422) penetrates the detection seat (1) and is provided with a sliding motor (423); the sliding motor (423) is fixed to the detection seat (1) via a fixing plate.

5. The highway guardrail strength testing device according to claim 3 is characterized in that: The striking assembly (43) comprises: A striking rod (431) is disposed on the striking seat (41); An adjusting member (432) is disposed on the striking seat (41) and is used to adjust the inclination angle of the striking rod (431) so as to change the striking angle of the striking rod (431); The striking head (433) is arranged at the end of the striking rod (431), and a clamp (434) is arranged between the striking head (433) and the striking rod (431) for taking and installing the striking head (433) from the end of the striking rod (431).

6. A highway guardrail strength testing device according to claim 5, characterized in that: The adjusting member (432) comprises a first rotating seat (4321) which is horizontally rotatably arranged on the striking seat (41); a second rotating seat (4322) is arranged on the first rotating seat (4321); the second rotating seat (4322) is vertically rotatably arranged on the first rotating seat (4321); and the striking rod (431) is arranged in a vertical direction on the second rotating seat (4322).

7. The highway guardrail strength testing device according to claim 5, characterized in that: The card and piece (434) include: An elastic protrusion (4341) is arranged at the end of the striking rod (431); A card slot (4342) is provided on the striking head (433) and is used for the elastic protrusion (4341) to pop out and snap in; A connecting slot (4343), one end of which is connected to the card and slot (4342), and the other end of which passes through the striking head (433) and extends to the outside; A pressing rod (4344) is limitedly slidably disposed in the connecting groove (4343), one end of which abuts against the elastic protrusion (4341) and the other end of which extends to the outside of the striking head (433); The card and spring (4345) are arranged in the connecting groove (4343) and sleeved on the pressing rod (4344).

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