A device for detecting the scratch resistance of guardrail

Abstract

The present invention discloses a device for detecting the scratch resistance of a guardrail, comprising a mounting box, a mounting plate symmetrically fixedly connected to the surface of the mounting box, a fixing plate fixedly connected to the opposite side of the mounting plate, a limiting groove fixedly provided on the surface of the fixing plate, a second mounting groove fixedly provided on the surface of the mounting plate, a detection device arranged between the second mounting groove and the mounting plate, the detection device consisting of a driving mechanism, a detection mechanism and a clamping mechanism, and the present invention relates to the field of guardrail technology. The device for detecting the scratch resistance of a guardrail can start the driving mechanism, so that the driving mechanism drives the detection mechanism to perform scratch treatment on the surface of the guardrail and realizes automatic clamping, thereby solving the problem that the existing detection can only observe whether there are defects on the surface and the connection, and the strength is only detected by a strength detection machine, but the scratch resistance detection of the surface of the guardrail cannot be realized.

Description

Technical Field

[0001] The invention relates to the technical field of guardrails, and in particular to a device for detecting the anti-scratch ability of guardrails. Background Art

[0002] The columns of the guardrail are fixed to the ground by expansion bolts or pre-buried. Usually installed on both sides of the logistics channel, around the production equipment, building corners, both sides of the door and the edge of the cargo platform, etc. Guardrails are mainly used for the protection and protection of equipment and facilities in roads, factories, communities, villas, courtyards, commercial areas, public places and other occasions. Guardrails can be seen everywhere in our lives. Here we are referring to industrial "guardrails". Guardrails are mainly used for the protection and protection of equipment and facilities in factories, workshops, warehouses, parking lots, commercial areas, public places and other occasions. Guardrails are also called protective nets and isolation fences. Guardrails are usually made of steel, such as round steel pipes, square steel pipes or corrugated steel plates. Surface treatment process: fully automatic electrostatic powder spraying (i.e. spraying) or painting. The raw materials used for the surface treatment of outdoor anti-collision guardrails are waterproof materials. The anti-collision guardrail has a beautiful appearance and is not easy to rust. The guardrail effectively reduces the damage to equipment and facilities caused by accidental collisions when handling equipment is moving back and forth. It also protects the logistics handling equipment itself. For example, the guardrail on the edge of the loading and unloading platform prevents the risk of forklifts accidentally falling.

[0003] The guardrails need to be inspected after they are produced, but the existing inspection can only observe whether there are defects on the surface and joints, and the strength is only tested by a strength testing machine, but it is impossible to detect the scratch resistance of the guardrail surface. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the present invention provides a device for detecting the anti-scratch ability of a guardrail, which solves the problem that the prior art detection can only observe whether there are defects on the surface and joints, and that the strength is only tested by a strength testing machine but cannot detect the anti-scratch ability of the guardrail surface.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a guardrail anti-scratch ability detection device, including a mounting box, a mounting plate is symmetrically fixedly connected to the surface of the mounting box, a fixing plate is fixedly connected to the opposite side of the mounting plate, a limiting groove is fixedly provided on the surface of the fixing plate, and a second mounting groove is fixedly provided on the surface of the mounting plate, characterized in that a detection device is arranged between the second mounting groove and the mounting plate, and the detection device is composed of a driving mechanism, a detection mechanism and a clamping mechanism.

[0008] The driving mechanism comprises a sleeve plate, a double-headed motor is fixedly connected to the surface of the sleeve plate, a connecting rod is fixedly connected to the output end of the double-headed motor, and one end of the connecting rod is fixedly connected to the first bevel gear.

[0009] The detection mechanism includes four frame plates, the inner cavities of the four frame plates are slidably sleeved with sliding blocks, the opposite side of the sliding block is fixedly connected with a connecting plate, the surface of the connecting plate is threadedly sleeved with a first screw rod, one end of the first screw rod is fixedly sleeved with a second bevel gear, the opposite side of the frame plate is fixedly provided with a through groove, the inner wall of the through groove is fixedly connected with a gear bar, the port of the through groove is fixedly installed with a cover plate by screws, the opposite side of the sliding block is fixedly provided with a first mounting groove, the inner cavity of the first mounting groove is rotatably sleeved with a second screw rod, the surface of the second screw rod is threadedly sleeved with a sleeve, the inner cavity of the sleeve is slidably sleeved with a telescopic plate, one end of the telescopic plate is fixedly connected with a first spring, one end of the second screw rod passes through the top of the inner cavity of the first mounting groove, extends to the inner cavity of the through groove, and is fixedly connected with a gear.

[0010] The clamping mechanism includes a strip plate and two extrusion plates, the tops of the two extrusion plates are fixedly provided with a slide groove, the inner cavity of the slide groove is slidably sleeved with a slider, the surface of the strip plate is fixedly connected to a second spring, the back of the strip plate is symmetrically fixedly connected to a connecting block, one end of the connecting block is fixedly connected to a second spring, the surface of the connecting block is fixedly provided with an inclined groove, and the back of the connecting block is fixedly provided with a through opening.

[0011] Preferably, a control panel is fixedly connected to the top of the installation box, an outer sealing door is movably connected to the surface of the installation box via a hinge, and supporting feet are fixedly connected to the bottoms of the installation box and the installation plate.

[0012] Preferably, the through opening is communicated with the inner cavity of the inclined groove, one end of the extrusion plate is slidably sleeved in the inner cavity of the inclined groove, one end of the extrusion plate is fixedly connected to the surface of the sliding block, and the top of the sliding block is fixedly connected to the surface of the frame plate.

[0013] Preferably, the strip plate is slidably sleeved on the left corner of the mounting plate, and one end of the second spring is fixedly connected to the inner wall of the mounting plate.

[0014] Preferably, the frame plate is fixedly connected to the inner wall of the second mounting groove and aligned with each other, and the surface of the frame plate is flush with the port of the supporting foot.

[0015] Preferably, the left end of the first screw rod is rotatably sleeved on the left wall of the inner cavity of the second installation groove, the right surface of the first screw rod is rotatably sleeved on the surface of the installation box, and the right end of the first screw rod extends into the inner cavity of the installation box.

[0016] Preferably, one end of the telescopic plate and the inner wall of the first mounting groove are both inclined and fit each other, one end of the first spring is fixedly connected to the inner wall of the sleeve, and the surfaces of the gear and the gear bar are meshed with each other.

[0017] Preferably, the corners of the sleeve plate surface are fixed to the inner wall of the mounting box by screws, and the connecting rod is meshedly connected with the surface of the second bevel gear.

[0018] Preferably, one end of the extrusion plate passes through the left wall of the inner cavity of the second installation groove and extends into the inner cavity of the inclined groove.

[0019] Preferably, the surface of the double-headed motor is electrically connected to the control panel via a wire.

[0020] Beneficial Effects

[0021] The present invention provides a device for detecting the anti-scratch ability of a guardrail. Compared with the prior art, it has the following beneficial effects:

[0022] 1. The guardrail anti-scratch ability detection device, when the first bevel gear rotates, it will mesh with the second bevel gear, thereby driving the first screw rod to rotate, so that the connecting plate on the surface of the first screw rod moves to one side through the thread, and the two ends of the connecting plate will drive the sliding block to move in the inner cavity of the frame plate again, and the sliding block will drive the clamping mechanism to work, and when the sliding block moves, the gear on the top of the second screw rod will mesh with the gear bar to rotate, so that the second screw rod rotates, and the sleeve of the second screw rod rotates downward, and at the same time, the sleeve will drive the telescopic plate to rotate outward from the inner cavity of the first mounting groove, when the gear meshes and rotates out from the surface of the gear bar, the second screw rod just drives the sleeve to rotate to 90 degrees, and then when the telescopic plate is rotated out, it drives the telescopic plate to extend out of the inner cavity of the sleeve under the elastic force of the first spring, and squeezes on the upper and lower surfaces of the guardrail, as the sliding block continues to move to one side, the telescopic plate will scratch the surface of the guardrail, thereby realizing the problem of automatic anti-scratch ability detection of the guardrail surface.

[0023] 2. The device for detecting the anti-scratch ability of the guardrail drives the extrusion plate to move on one side when the sliding block moves, so that one end of the extrusion plate enters the inner cavity of the inclined groove, and squeezes the connecting block through the inclined groove, so that the connecting block drives the strip plate to extend on the surface of the mounting plate, and is clamped on the surfaces of both sides of the guardrail through the rubber layer, so that the anti-scratch ability detection can be realized while the guardrail can be clamped automatically.

[0024] 3. The guardrail anti-scratch ability detection device, when the extrusion plate continues to move, one end of the extrusion plate will pass through the connecting block through the through opening, so that when the extrusion plate continues to move, it will not affect the left and right movement of the sliding block, thereby increasing the detection of the anti-scratch ability surface area of ​​the guardrail by the telescopic plate.

[0025] 4. The guardrail anti-scratch ability detection device increases the stability of the extrusion plate movement by sliding the slide groove on the slider, so as to maintain the horizontal state of the extrusion plate and avoid the extrusion plate from being offset in the later stage, resulting in the inability to align with the inner cavity of the inclined groove, thereby causing the strip plate to be unable to be automatically clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 It is a partial schematic diagram of the structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the structural installation plate of the present invention;

[0029] Figure 4 It is a schematic diagram of the structure detection device of the present invention;

[0030] Figure 5 It is a schematic diagram of the structural driving mechanism of the present invention;

[0031] Figure 6 It is a schematic diagram of the structural detection mechanism of the present invention;

[0032] Figure 7 It is a partial schematic diagram of the structural detection mechanism of the present invention;

[0033] Figure 8 The structure of the present invention Figure 7 A partial enlarged view of the middle part;

[0034] Fig. 9 It is a partial exploded diagram of the structural detection mechanism of the present invention;

[0035] Fig.10 It is a schematic diagram of the structural clamping mechanism of the present invention;

[0036] Fig.11 It is a partial schematic diagram of the structural clamping mechanism of the present invention;

[0037] Fig.12 This is a schematic diagram of the structural extruded plate of the present invention;

[0038] Fig.13 It is a schematic diagram of the structural connection block of the present invention.

[0039] In the figure: 1, installation box; 2, outer sealing door; 3, control panel; 4, installation plate; 5, fixing plate; 6, limit groove; 7, detection device; 71, driving mechanism; 711, sleeve plate; 712, double-headed motor; 713, connecting rod; 714, first bevel gear; 72, detection mechanism; 721, frame plate; 722, sliding block; 723, connecting plate; 724, first screw rod; 725, second bevel gear; 726, through groove; 727, first installation Mounting groove; 728, second screw rod; 729, sleeve; 7210, telescopic plate; 7211, cover plate; 7212, gear; 7213, gear bar; 7214, first spring; 73, clamping mechanism; 731, strip plate; 732, extrusion plate; 733, slider; 734, connecting block; 735, second spring; 736, rubber layer; 737, slide groove; 738, inclined groove; 739, through-hole; 8, supporting foot; 9, second mounting groove. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention are described clearly and completely. 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.

[0041] See also Figure 1-4 The embodiment of the present invention provides a technical solution: a device for detecting the anti-scratch ability of a guardrail, comprising an installation box 1, a mounting plate 4 is symmetrically fixedly connected to the surface of the installation box 1, a fixing plate 5 is fixedly connected to the opposite side of the installation plate 4, a limiting groove 6 is fixedly provided on the surface of the fixing plate 5, a second installation groove 9 is fixedly provided on the surface of the installation plate 4, a detection device 7 is arranged between the second installation groove 9 and the installation plate 4, a control panel 3 is fixedly connected to the top of the installation box 1, an outer sealing door 2 is movably connected to the surface of the installation box 1 through a hinge, supporting feet 8 are fixedly connected to the bottoms of the installation box 1 and the installation plate 4, and the detection device 7 is composed of a driving mechanism 71, a detection mechanism 72 and a clamping mechanism 73.

[0042] See also Figure 5 The driving mechanism 71 includes a sleeve plate 711, a double-headed motor 712 is fixedly connected to the surface of the sleeve plate 711, a connecting rod 713 is fixedly connected to the output end of the double-headed motor 712, one end of the connecting rod 713 is fixedly connected to the first bevel gear 714, the corner of the sleeve plate 711 surface is fixedly mounted on the inner wall of the mounting box 1 by screws, the connecting rod 713 is meshed with the surface of the second bevel gear 725, and the surface of the double-headed motor 712 is electrically connected to the control panel 3 through a wire.

[0043] See also Figure 6-9The detection mechanism 72 includes four frame plates 721, the inner cavities of the four frame plates 721 are slidably sleeved with sliding blocks 722, the opposite side of the sliding blocks 722 is fixedly connected with a connecting plate 723, the surface of the connecting plate 723 is threadedly sleeved with a first screw rod 724, one end of the first screw rod 724 is fixedly sleeved with a second bevel gear 725, the opposite side of the frame plate 721 is fixedly provided with a through slot 726, the inner wall of the through slot 726 is fixedly connected with a gear bar 7213, and the port of the through slot 726 is connected through The cover plate 7211 is fixedly installed with screws, and a first mounting groove 727 is fixedly opened on the opposite side of the sliding block 722. The inner cavity of the first mounting groove 727 is rotatably sleeved with a second screw rod 728, and the surface of the second screw rod 728 is threadedly sleeved with a sleeve 729, and the inner cavity of the sleeve 729 is slidably sleeved with a telescopic plate 7210, and one end of the telescopic plate 7210 is fixedly connected with a first spring 7214, and one end of the second screw rod 728 passes through the top of the inner cavity of the first mounting groove 727 and extends to the sleeve 729. The inner cavity of the groove 726 is fixedly connected with a gear 7212, the through port 739 is communicated with the inner cavity of the inclined groove 738, one end of the extrusion plate 732 is slidably sleeved in the inner cavity of the inclined groove 738, one end of the extrusion plate 732 is fixedly connected to the surface of the sliding block 722, the top of the slider 733 is fixedly connected to the surface of the frame plate 721, the frame plate 721 is fixedly connected to the inner wall of the second mounting groove 9, and they are aligned with each other, and the surface of the frame plate 721 is flush with the port of the supporting foot 8. The left end of the first screw rod 724 is rotatably sleeved on the left wall of the inner cavity of the second mounting groove 9, the right surface of the first screw rod 724 is rotatably sleeved on the surface of the mounting box 1, and the right end of the first screw rod 724 extends into the inner cavity of the mounting box 1, one end of the telescopic plate 7210 and the inner wall of the first mounting groove 727 are both inclined and fit each other, one end of the first spring 7214 is fixedly connected to the inner wall of the sleeve 729, and the surfaces of the gear 7212 and the gear bar 7213 are meshed with each other.

[0044] See also Figure 10-13 The clamping mechanism 73 includes a strip plate 731 and two extrusion plates 732. The tops of the two extrusion plates 732 are fixedly provided with a slide groove 737. The inner cavity of the slide groove 737 is slidably sleeved with a slider 733. The surface of the strip plate 731 is fixedly connected with a second spring 735. The back of the strip plate 731 is symmetrically fixedly connected with a connecting block 734. One end of the connecting block 734 is fixedly connected with a second spring 735. The surface of the connecting block 734 is fixedly provided with an inclined groove 738. The back of the connecting block 734 is fixedly provided with a through hole 739. The strip plate 731 is slidably sleeved on the left corner of the mounting plate 4, and one end of the second spring 735 is fixedly connected to the inner wall of the mounting plate 4. One end of the extrusion plate 732 passes through the left wall of the inner cavity of the second mounting groove 9 and extends into the inner cavity of the inclined groove 738.

[0045] S1. When the equipment is started, the device is first fixed and placed by the support feet 8, and then the control panel 3 is powered by the power line, and then the produced guardrail is vertically inserted into the inner cavity of the limit groove 6 on the surface of the fixing plate 5, and then the driving mechanism 71 is started by the start button on the surface of the control panel 3;

[0046] S2, when the driving mechanism is working, when the driving mechanism 71 is started to rotate, the output ends of the driving mechanism 71 at both ends will drive the first bevel gear 714 to rotate through the connecting rod 713, and drive the detection mechanism 72 to work;

[0047] When the first bevel gear 714 rotates, it will mesh with the second bevel gear 725, thereby driving the first screw rod 724 to rotate, so that the connecting plate 723 on the surface of the first screw rod 724 moves to one side through the thread, and the two ends of the connecting plate 723 will drive the sliding block 722 to move in the inner cavity of the frame plate 721 again. At the same time, the sliding block 722 will drive the clamping mechanism 73 to work, and when the sliding block 722 moves, the gear 7212 at the top of the second screw rod 728 will mesh with the gear bar 7213 to rotate, so that the second screw rod 728 rotates, so that the sleeve 729 of the second screw rod 728 rotates downward, and at the same time, the sleeve 729 will drive the telescopic plate 7210 to rotate out of the inner cavity of the first mounting groove 727. When the gear 7212 meshes and rotates out from the surface of the gear bar 7213, its second screw rod 728 just drives the sleeve 729 to rotate to 90 degrees, and then After that, when the telescopic plate 7210 is rotated out, the telescopic plate 7210 is driven to extend out of the inner cavity of the sleeve 729 under the elastic force of the first spring 7214, and is squeezed on the upper and lower surfaces of the guardrail. As the sliding block 722 continues to move to one side, the telescopic plate 7210 will scratch the surface of the guardrail. When the scratching is completed, the control panel 3 will control the driving mechanism 71 to reverse, so that the sliding block 722 in the detection mechanism 72 is reset, and the gear 7212 will rotate in the opposite direction to the gear bar 7213, so that the second screw rod 728 drives the sleeve 729 to reset, so that the telescopic plate 7210 with one end inclined will be squeezed in the inclined first installation groove 727. After squeezing, the telescopic plate 7210 will drive the first spring 7214 to retract in the inner cavity of the sleeve 729, and then the guardrail is taken out from the inner cavity of the limiting groove 6, and the guardrail after the scratch is checked, thereby realizing automatic detection of the anti-scratch ability of the guardrail;

[0048] S4, when the clamping mechanism is working, when the sliding block 722 is moving, it drives the extrusion plate 732 to move to one side, and at the same time, slides on the slider 733 through the slide groove 737 to increase the stability of the movement of the extrusion plate 732, so that one end of the extrusion plate 732 enters the inner cavity of the inclined groove 738, and squeezes the connecting block 734 through the inclined groove 738, so that the connecting block 734 drives the strip plate 731 to extend on the surface of the mounting plate 4, and is clamped on the surfaces on both sides of the guardrail through the rubber layer 736, completing the fastening of the guardrail, and when the extrusion plate 732 continues to move, one end of the extrusion plate 732 will pass through the connecting block 734 through the through hole 739, so that when the extrusion plate 732 continues to move, it will not affect the left and right movement of the sliding block 722.

[0049] It should be noted that opening the outer sealing door 2 can facilitate the subsequent maintenance of the driving mechanism 71 and the storage of tools in the inner cavity of the installation box 1.

[0050] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0051] 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.

[0052] 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 device for detecting the scratch resistance of a guardrail, comprising a mounting box (1), a mounting plate (4) being symmetrically fixedly connected to the surface of the mounting box (1), a fixing plate (5) being fixedly connected to the opposite side of the mounting plate (4), a limiting groove (6) being fixedly provided on the surface of the fixing plate (5), and a second mounting groove (9) being fixedly provided on the surface of the mounting plate (4), characterized in that: A detection device (7) is provided between the second mounting groove (9) and the mounting plate (4), the detection device (7) comprising a driving mechanism (71), a detection mechanism (72) and a clamping mechanism (73); The driving mechanism (71) comprises a sleeve plate (711), a double-headed motor (712) being fixedly connected to the surface of the sleeve plate (711), a connecting rod (713) being fixedly connected to the output end of the double-headed motor (712), and a first bevel gear (714) being fixedly connected to one end of the connecting rod (713); The detection mechanism (72) comprises four frame plates (721), the inner cavities of the four frame plates (721) are slidably sleeved with sliding blocks (722), the opposite side of the sliding blocks (722) is fixedly connected with a connecting plate (723), the surface of the connecting plate (723) is threadedly sleeved with a first screw rod (724), one end of the first screw rod (724) is fixedly sleeved with a second bevel gear (725), the opposite side of the frame plate (721) is fixedly provided with a through groove (726), the inner wall of the through groove (726) is fixedly connected with a gear bar (7213), and the port of the through groove (726) is fixedly mounted with a cover plate by means of screws (7211), a first mounting groove (727) is fixedly provided on one side opposite to the sliding block (722), a second screw rod (728) is rotatably sleeved in the inner cavity of the first mounting groove (727), a sleeve (729) is threadedly sleeved on the surface of the second screw rod (728), a telescopic plate (7210) is slidably sleeved in the inner cavity of the sleeve (729), one end of the telescopic plate (7210) is fixedly connected to a first spring (7214), one end of the second screw rod (728) passes through the top of the inner cavity of the first mounting groove (727), extends to the inner cavity of the through groove (726), and is fixedly connected to a gear (7212); The clamping mechanism (73) comprises a strip plate (731) and two extrusion plates (732); a slide groove (737) is fixedly provided on the top of the two extrusion plates (732); a slider (733) is slidably sleeved in the inner cavity of the slide groove (737); a second spring (735) is fixedly connected to the surface of the strip plate (731); a connecting block (734) is symmetrically fixedly connected to the back of the strip plate (731); one end of the connecting block (734) is fixedly connected to the second spring (735); an inclined groove (738) is fixedly provided on the surface of the connecting block (734); and a through opening (739) is fixedly provided on the back of the connecting block (734); The through opening (739) is in communication with the inner cavity of the inclined groove (738); one end of the extrusion plate (732) is slidably sleeved in the inner cavity of the inclined groove (738); one end of the extrusion plate (732) is fixedly connected to the surface of the sliding block (722); and the top of the sliding block (733) is fixedly connected to the surface of the frame plate (721); One end of the telescopic plate (7210) and the inner wall of the first mounting groove (727) are both inclined and fit together, one end of the first spring (7214) is fixedly connected to the inner wall of the sleeve (729), and the surfaces of the gear (7212) and the gear bar (7213) are meshed and connected with each other.

2. A guardrail anti-scratch ability detection device according to claim 1, characterized in that: The top of the installation box (1) is fixedly connected to a control panel (3), the surface of the installation box (1) is movably connected to an outer sealing door (2) via a hinge, and the bottoms of the installation box (1) and the installation plate (4) are both fixedly connected to support feet (8).

3. A guardrail anti-scratch ability detection device according to claim 1, characterized in that: The strip plate (731) is slidably sleeved on the left corner of the mounting plate (4), and one end of the second spring (735) is fixedly connected to the inner wall of the mounting plate (4).

4. A guardrail anti-scratch ability detection device according to claim 1, characterized in that: The frame plate (721) is fixedly connected to the inner wall of the second mounting groove (9) and aligned with each other, and the surface of the frame plate (721) is flush with the port of the supporting foot (8).

5. A guardrail anti-scratch ability detection device according to claim 1, characterized in that: The left end of the first screw rod (724) is rotatably sleeved on the left wall of the inner cavity of the second installation groove (9), the right surface of the first screw rod (724) is rotatably sleeved on the surface of the installation box (1), and the right end of the first screw rod (724) extends into the inner cavity of the installation box (1).

6. A guardrail anti-scratch ability detection device according to claim 1, characterized in that: The corners of the surface of the sleeve plate (711) are fixed to the inner wall of the installation box (1) by means of screws, and the connecting rod (713) is meshedly connected with the surface of the second bevel gear (725).

7. A guardrail anti-scratch ability detection device according to claim 1, characterized in that: One end of the extrusion plate (732) passes through the left wall of the inner cavity of the second installation groove (9) and extends into the inner cavity of the inclined groove (738).

8. A guardrail anti-scratch ability detection device according to claim 1, characterized in that: The surface of the double-headed motor (712) is electrically connected to the control panel (3) via a wire.

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