Pavement flatness detection device

Abstract

The utility model provides a road surface flatness detection device, which comprises a base, a support shaft, a plurality of push rods and an angle adjusting mechanism, the angle adjusting mechanism is used for adjusting the angle of the support shaft, the support shaft is vertically provided with a plurality of guide chutes for the push rods to vertically slide, and the plurality of guide chutes are arranged at equal intervals. The bottom of each ejector rod is provided with a detection wheel used for detection, the base is provided with a through groove allowing the detection wheel to pass through, the ejector rods are provided with spring plates, springs are arranged between the spring plates and the supporting shaft, the supporting shaft is further provided with a supporting plate, and the supporting plate is provided with a clamping groove. And the support plate is provided with a plurality of groups of trigger mechanisms and indicating lamps which are the same as the detection wheels in number. According to the road surface flatness detection device, before detection, because the whole road surface is likely to incline towards one direction, the supporting shaft is adjusted to be in a horizontal state through the angle adjusting mechanism, so that the plurality of detection wheels can cope with the condition that the whole road surface is inclined, and accurate detection is carried out.

Description

TECHNICAL FIELD

[0001] The utility model relates to road surface detection technical field, concretely is a road surface flatness detection device. BACKGROUND

[0002] Road surface flatness refers to the deviation value of the longitudinal concave-convex amount of the road surface. Road surface flatness is an important index in road surface evaluation and road surface construction acceptance, and mainly reflects the flatness of the road surface longitudinal section profile curve. When the road surface longitudinal section profile curve is relatively smooth, it indicates that the road surface is relatively flat, or the flatness is relatively good, and vice versa. The road surface flatness of the bridge and the highway is related to the safety and comfort of driving, the size of the impact force and the service life of the road surface, and the uneven road surface will increase the driving resistance and cause additional vibration of the vehicle.

[0003] The existing road surface flatness measurement method generally uses a row of detection wheels with telescopic function to detect the flatness of the road surface according to the floating condition of the detection wheels, but the levelness of the row of detection wheels cannot be adjusted, and only the overall horizontal road surface can be detected. If the overall road surface is inclined in one direction, the overall road surface is flat, but it is actually inclined relative to the horizontal line, so the detection wheel cannot accurately detect. UTILITY MODEL CONTENT

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a road surface flatness detection device, which solves the problems in the above background art.

[0006] (II) Technical scheme

[0007] In order to achieve the above purpose, the utility model is realized by the following technical scheme: a road surface flatness detection device, comprising a base, a support shaft, a plurality of jacks, an angle adjusting mechanism, the angle adjusting mechanism is used for adjusting the angle of the support shaft, a plurality of guide sliding grooves are vertically arranged on the support shaft, the plurality of guide sliding grooves are arranged at equal intervals, the bottom of each jack is provided with a detection wheel for detection, a through slot is formed in the base, the detection wheel can pass through the through slot, a spring plate is arranged on the jack, a spring is arranged between the spring plate and the support shaft, a support plate is further arranged on the support shaft, a plurality of groups of trigger mechanisms and indicator lights are arranged on the support plate, the number of which is the same as that of the detection wheels, when the detection wheel fluctuates, the corresponding trigger mechanism triggers the indicator light.

[0008] Preferably, the angle adjusting mechanism comprises a disc, the disc is fixed on the base, the middle part of the support shaft is rotatably arranged on the disc, and the support shaft is screw-connected with a locking bolt corresponding to the disc.

[0009] Preferably, a level is arranged on the support shaft at the center of the rotation axis of the disc.

[0010] Preferably, the group of indicator lamps has two indicator lamps, and the two indicator lamps are vertically arranged on the support plate corresponding to each top rod.

[0011] Preferably, the trigger mechanism comprises a trigger plate, an upper side plate and a lower side plate, the trigger plate is fixed on the side of the corresponding top rod, the upper side plate and the lower side plate are fixed on the support plate and located on the upper side and the lower side of the trigger plate, trigger switches corresponding to the trigger plate are arranged on the upper side plate and the lower side plate respectively, and the two trigger switches are electrically connected with two corresponding indicator lamps respectively.

[0012] Preferably, a handle is arranged on the base.

[0013] (Three) beneficial effects

[0014] The utility model provides a road surface flatness detection device. Has the following beneficial effects:

[0015] 1、 the road surface flatness detection device, because the road surface can be overall inclined to a direction before detection, first the support shaft is adjusted to the horizontal state through the angle adjusting mechanism, so that a plurality of detection wheels can cope with the condition that the road surface is overall inclined, and accurate detection is made.

[0016] 2、 the road surface flatness detection device, when the road surface is concave, the detection wheel is sunken, and the trigger plate will follow downward, if exceeding the error range, the trigger plate will contact the trigger switch on the lower side plate, and the indicator lamp below is lit on; when the road surface is convex, the detection wheel is lifted upward, and the trigger plate will follow upward, if exceeding the error range, the trigger plate will contact the trigger switch on the upper side plate, and the indicator lamp above is lit on; If the indicator lamp is not lit, it indicates that the road surface flatness is in the normal error range; The operator judges the concave degree of the road surface according to the condition of the indicator lamp. DRAWINGS

[0017] Figure 1 It is the axonometric view of the utility model;

[0018] Figure 2 It is the trigger mechanism schematic view of the utility model;

[0019] Figure 3 It is the support shaft side sectional schematic view of the utility model.

[0020] In the figure: 1 base, 2 anti-inverted wheel, 3 support shaft, 4 jacking rod, 5 guide sliding slot, 6 through slot, 7 spring plate, 8 spring, 9 disc, 10 locking bolt, 11 level, 12 trigger plate, 13 support plate, 14 indicator light, 15 upper side plate, 16 lower side plate, 17 trigger switch, 18 detection wheel, 19 handle. DETAILED DESCRIPTION

[0021] The utility model embodiment provides a kind of road surface flatness detection device, as shown in Figures 1-3 It includes base 1, support shaft 3, several jacking rods 4, angle adjusting mechanism.

[0022] Two handles 19 are provided on the base 1, and the operator pushes the device forward by the handle 19.

[0023] Anti-inverted wheels 2 are provided on the front and rear sides of the base 1, and the height of the anti-inverted wheels 2 is higher than the height of the detection wheels 18. During detection, the detection wheels 18 contact the ground under the operator's grip, and the anti-inverted wheels 2 do not contact the ground. When not detecting, the anti-inverted wheels 2 are used for front and rear support to prevent the device from collapsing.

[0024] As shown in Figure 1 and Figure 3 The angle adjusting mechanism is used to adjust the angle of the support shaft 3, and the angle adjusting mechanism includes a disc 9 fixed on the base 1. The middle part of the support shaft 3 is rotatably arranged at the center of the disc 9, and the support shaft 3 is threadedly connected with a locking bolt 10 corresponding to the disc 9. The locking bolt 10 can be provided with two, and when the angle of the support shaft 3 is adjusted, the locking bolt 10 is locked on the disc 9 to lock the support shaft 3.

[0025] As shown in Figure 1 A level 11 is provided on the support shaft 3 at the center of the shaft of the support shaft 3 and the disc 9.

[0026] Before detection, the road surface may be inclined in one direction as a whole, and the support shaft 3 is adjusted to a horizontal state by the angle adjusting mechanism, so that the detection wheels 18 can cope with the overall inclination of the road surface and make accurate detection.

[0027] As shown in Figure 1As shown, a plurality of guide sliding grooves 5 for vertical sliding of the jacks 4 are vertically formed on the support shaft 3, the guide sliding grooves 5 are arranged at equal intervals, the bottom of each jack 4 is provided with a detection wheel 18 for detection, and the detection wheel 18 is rotationally connected to the bottom end of the jack 4. A through slot 6 for the detection wheel 18 to pass through is formed on the base 1, a spring plate 7 is arranged on the jack 4, a spring 8 is arranged between the spring plate 7 and the support shaft 3, and when there is no external force, the detection wheels 18 at the bottom of the jacks 4 are on the same horizontal line. When the jack 4 is displaced upward, the spring 8 is compressed, and the spring 8 is reset when the jack 4 loses the compression. The support shaft 3 is further provided with a support plate 13, a plurality of groups of trigger mechanisms and indicator lamps 14 are arranged on the support plate 13, and the number of the groups of trigger mechanisms is the same as that of the detection wheels 18. When the detection wheel 18 fluctuates, the corresponding trigger mechanism triggers the indicator lamp 14.

[0028] As shown in the drawings, Figure 1 A group of indicator lamps 14 includes two indicator lamps 14 arranged vertically on the support plate 13 corresponding to each jack 4.

[0029] As shown in the drawings, Figures 2-3 The trigger mechanism includes a trigger plate 12, an upper side plate 15 and a lower side plate 16, the trigger plate 12 is fixed to the side of the corresponding jack 4, the upper side plate 15 and the lower side plate 16 are fixed to the support plate 13 and located on the upper and lower sides of the trigger plate 12, the upper side plate 15 and the lower side plate 16 are respectively provided with trigger switches 17 corresponding to the trigger plate 12, and the two trigger switches 17 are respectively electrically connected to the two corresponding indicator lamps 14. The spacing between the upper side plate 15, the lower side plate 16 and the trigger plate 12 is determined according to the error range of the road surface flatness.

[0030] When the road surface is depressed, the detection wheel 18 sinks, the trigger plate 12 follows downward, and if the error range is exceeded, the trigger plate 12 will contact the trigger switch 17 on the lower side plate 16, and the lower indicator lamp 14 will light up; when the road surface is raised, the detection wheel 18 is lifted upward, the trigger plate 12 follows upward, and if the error range is exceeded, the trigger plate 12 will contact the trigger switch 17 on the upper side plate 15, and the upper indicator lamp 14 will light up; if none of the indicator lamps 14 is lit, it indicates that the road surface flatness is within the normal error range; the operator can judge the depression degree of the road surface according to the condition of the indicator lamps 14.

[0031] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A road surface smoothness detection device, characterized in that: The device includes a base (1), a support shaft (3), several top rods (4), and an angle adjustment mechanism. The angle adjustment mechanism is used to adjust the angle of the support shaft (3). The support shaft (3) has several guide grooves (5) vertically arranged for the top rods (4) to slide vertically. The guide grooves (5) are arranged at equal intervals. Each top rod (4) has a detection wheel (18) at its bottom. The base (1) has a through groove (6) for the detection wheel (18) to pass through. The top rod (4) has a spring plate (7). A spring (8) is provided between the spring plate (7) and the support shaft (3). The support shaft (3) also has a support plate (13). The support plate (13) has several sets of triggering mechanisms and indicator lights (14) in the same number as the detection wheel (18). When the detection wheel (18) fluctuates, the indicator lights (14) are triggered by the corresponding triggering mechanism.

2. The road surface smoothness detection device according to claim 1, characterized in that: The angle adjustment mechanism includes a disc (9) which is fixed on the base (1). The middle part of the support shaft (3) is rotatably mounted on the disc (9). The support shaft (3) is threaded with a locking bolt (10) corresponding to the disc (9).

3. The road surface smoothness detection device according to claim 2, characterized in that: A level (11) is installed on the support shaft (3) at the center of the pivot between the support shaft (3) and the disk (9).

4. The road surface smoothness detection device according to claim 1, characterized in that: There are two indicator lights (14) in one set, and the two indicator lights (14) are arranged vertically on the support plate (13) corresponding to each top rod (4).

5. A road surface smoothness testing device according to claim 4, characterized in that: The triggering mechanism includes a trigger plate (12), an upper side plate (15), and a lower side plate (16). The trigger plate (12) is fixed to the side of the corresponding top rod (4). The upper side plate (15) and the lower side plate (16) are fixed on the support plate (13) and located on the upper and lower sides of the trigger plate (12). The upper side plate (15) and the lower side plate (16) are respectively provided with trigger switches (17) corresponding to the trigger plate (12). The two trigger switches (17) are electrically connected to two corresponding indicator lights (14).

6. The road surface smoothness detection device according to claim 1, characterized in that: The base (1) is provided with a handle (19).

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