Crack depth measuring tool for asphalt pavement construction

Abstract

The utility model relates to the field of pavement construction equipment, and discloses a crack depth measuring tool for asphalt pavement construction, which comprises a connecting seat, a data display is arranged on the surface of the connecting seat, an adjustable supporting mechanism is arranged on the lower surface of the connecting seat, a hinge rod is hinged to the side wall of a connecting block, and the hinge rod is hinged to the side wall of the connecting block. Supporting legs are hinged to the ends, away from the connecting blocks, of the hinge rods, fixing bolts are in threaded connection with the upper surfaces of the sliding sleeves, and a detection head retracting mechanism is arranged on the surface of the connecting base. According to the utility model, the adjustable supporting mechanism is arranged, the sliding sleeve slides up and down to drive the supporting legs to unfold or fold, then the supporting legs are fixed through the clamping blocks and the bolts, and the road surface can be supported through the supporting legs, so that the problem of errors possibly caused by manual holding is solved, and the measurement result is more accurate; and the triangular support frame has stability, and can be adjusted and contracted to facilitate storage.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of road surface construction equipment, especially relates to a crack depth measuring tool for asphalt pavement construction. BACKGROUND

[0002] Asphalt pavement refers to various types of pavement structures formed by mixing road asphalt material into mineral material and paving through specific construction technology, and is one of the widely used pavement forms in current road engineering, which forms a whole by bonding dispersed mineral aggregate into a whole through the bonding effect of asphalt material, and forms a pavement structure layer with certain strength, stability and durability to bear vehicle load and resist the influence of natural environment.

[0003] The crack depth measuring tool is a kind of instrument or equipment specially used for detecting and quantifying the crack depth of object surface and internal crack, and its core function is to convert the crack depth difficult to be directly judged by naked eye into measurable and quantifiable data through specific detection principle and technical means, so as to provide key basis for structure safety evaluation, disease diagnosis, maintenance and reinforcement and other work.

[0004] However, the traditional crack depth measuring tool for asphalt pavement construction needs to be manually held for measurement in use, and the measurement result may have error caused by hand shaking, so the crack depth measuring tool for asphalt pavement construction is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a crack depth measuring tool for asphalt pavement construction, which aims at improving the problem that manual holding for measurement may cause error in the measurement result in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a crack depth measuring tool for asphalt pavement construction, comprising a connecting seat, a data display is arranged on the surface of the connecting seat, an adjustable supporting mechanism is arranged on the lower surface of the connecting seat, and a probe head retracting mechanism is arranged on the surface of the connecting seat.

[0007] The adjustable supporting mechanism comprises a connecting block, a hinge rod is hinged to the side wall of the connecting block, a supporting leg is hinged to the end of the hinge rod away from the connecting block, a sliding sleeve is hinged to the rotating center shaft of the supporting leg, a clamping block is elastically connected to the sliding sleeve through a spring b, and a fixing bolt is threadedly connected to the upper surface of the sliding sleeve.

[0008] Further description of the above technical scheme:

[0009] The probe head contraction mechanism comprises a telescopic seat, a probe head elastically connected to the telescopic seat through a spring a, a base fixedly connected to the lower surface of the telescopic seat, and a soft brush arranged on the inner side wall of the base.

[0010] As a further description of the above technical solution:

[0011] The upper surface of the connecting block is fixedly connected to the lower surface of the connecting seat, the surface of the clamping block is provided with a threaded groove, and the fixing bolt is threadedly connected in the threaded groove of the clamping block.

[0012] As a further description of the above technical solution:

[0013] One end of the spring b is fixedly connected to the side wall of the clamping block, the other end of the spring b is fixedly connected to the inner side wall of the sliding sleeve, the inner wall of the sliding sleeve is provided with a sliding groove, and the clamping block is slidingly connected in the sliding groove of the sliding sleeve.

[0014] As a further description of the above technical solution:

[0015] The sliding sleeve is slidingly connected to the surface of the telescopic seat

[0016] As a further description of the above technical solution:

[0017] One end of the spring a is fixedly connected to the side wall of the probe head, the other end of the spring a is fixedly connected to the bottom of the inner wall of the telescopic seat, the lower surface of the connecting seat is fixedly connected to the upper surface of the connecting block, the surface of the telescopic seat is provided with a clamping groove, and the clamping block is in contact with the clamping groove in the surface of the telescopic seat.

[0018] As a further description of the above technical solution:

[0019] The inner wall of the telescopic seat is provided with a cavity, and the probe head penetrates and is slidingly connected to the inner wall of the telescopic seat.

[0020] As a further description of the above technical solution:

[0021] The telescopic seat penetrates and is fixedly connected to the inner wall of the connecting seat, and the telescopic seat penetrates and is fixedly connected to the inner wall of the connecting block.

[0022] The utility model has the advantages of:

[0023] 1、The utility model discloses a support mechanism is arranged, through the upper and lower sliding sleeve drive support leg to unfold or retract, and then through the clamping block and bolt fixed support leg, can support the road surface through support leg, solve the error problem that manpower may exist, make the measurement result more accurate, and the stability of triangular support frame has, and adjustment contraction is convenient for storage.

[0024] 2、 The utility model discloses a probe head retraction mechanism is set up, and the probe head is reset automatically through the spring after extruding, reduces the contact of probe head and asphalt pavement after use, prevents probe wear or deformation, and the soft brush is set up in the inner wall of base, can clean the probe head after measurement. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A three-dimensional structure schematic diagram of the crack depth measuring tool for asphalt pavement construction is provided for the utility model;

[0026] Figure 2 An overall three-dimensional structure back surface schematic diagram of the crack depth measuring tool for asphalt pavement construction is provided for the utility model;

[0027] Figure 3 A structure schematic diagram of the crack depth measuring tool for asphalt pavement construction in the overall three-dimensional structure retracted state is provided for the utility model;

[0028] Figure 4 A sliding sleeve local three-dimensional structure sectional view schematic diagram of the crack depth measuring tool for asphalt pavement construction is provided for the utility model.

[0029] Figure 5 A base local three-dimensional structure schematic diagram of the crack depth measuring tool for asphalt pavement construction is provided for the utility model;

[0030] Figure 6 A telescopic seat local three-dimensional structure sectional view schematic diagram of the crack depth measuring tool for asphalt pavement construction is provided for the utility model.

[0031] LEGEND:

[0032] 1, connecting seat, 2, probe head retraction mechanism, 21, telescopic seat, 22, probe head, 23, spring a, 24, base, 25, soft brush, 3, adjustable support mechanism, 31, connecting block, 32, hinged rod, 33, support leg, 34, sliding sleeve, 35, clamping block, 36, fixing bolt, 37, spring b, 4, data display. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0034] REFERENCE Figures 1-3The utility model provides a kind of crack depth measuring tool for asphalt pavement construction, including connecting seat 1, the surface of connecting seat 1 is provided with data display 4, data display 4 is measured by detecting head 22 into gap, and measurement data is transmitted to display 4, it is convenient for staff to track record, the lower surface of connecting seat 1 is provided with adjustable support mechanism 3;

[0035] With reference to Figures 2-4 Adjustable support mechanism 3 includes connecting block 31, the upper surface of connecting block 31 is fixedly connected to the lower surface of connecting seat 1, the surface of clamping block 35 is provided with screw groove, fixed bolt 36 is screw-connected in the screw groove of clamping block 35, the effect of screw groove is to fix clamping block 35, so that clamping block 35 cannot slide in the sliding groove of sliding sleeve 34, prevent the road surface vibration caused by the driving of car in the measurement process, clamping block 35 is affected by vibration and will extrude spring b37, cause sliding sleeve 34 to move, the surface of telescopic seat 21 is provided with clamping groove, clamping block 35 is in contact with the clamping groove of the surface of telescopic seat 21, sliding sleeve 34 is fixed by the contact of clamping block 35 and the clamping groove of telescopic seat 21, the side wall of connecting block 31 is hinged with hinge rod 32, the end of hinge rod 32 away from connecting block 31 is hinged with support leg 33, the rotation center axis of support leg 33 is hinged with sliding sleeve 34, moving sliding sleeve 34 will drive the end hinged with support leg 33 to slide downward synchronously, while being subjected to the tension of top hinge rod 32, will make the end of support leg 33 and hinge rod 32 hinged to each other, reach the effect of support leg 33 bottom to spread out outward to complete support, clamping block 35 is elastically connected with spring b37 by sliding sleeve 34, one end of spring b37 is fixedly connected to the side wall of clamping block 35, the other end of spring b37 is fixedly connected to the inside side wall of sliding sleeve 34, the effect of spring b37 is to automatically reset clamping block 35 after moving, the inner wall of sliding sleeve 34 is provided with sliding groove, sliding sleeve 34 is slidingly connected to the surface of telescopic seat 21, the inner wall of sliding sleeve 34 is provided with sliding groove, clamping block 35 is slidingly connected in the sliding groove of sliding sleeve 34, the sliding groove of the inner wall of sliding sleeve 34 plays a limiting role to clamping block 35, so that clamping block 35 can only slide forward and backward in the sliding groove of sliding sleeve 34, the upper surface of sliding sleeve 34 is screw-connected with fixed bolt 36, the surface of connecting seat 1 is provided with detecting head retraction mechanism 2.

[0036] With reference to Figure 1 And Figures 5-6The probe head retraction mechanism 2 comprises a telescopic seat 21, the inner wall of the telescopic seat 21 is provided with a cavity, and the probe head 22 penetrates and is slidably connected to the inner wall of the telescopic seat 21. The telescopic seat 21 protects the probe head 22. After the use of the probe head 22 is completed, the inner wall of the telescopic seat 21 is retracted by the spring a 23, the contact between the probe head 22 and the outside is reduced, and the abrasion is reduced. The telescopic seat 21 penetrates and is fixedly connected to the inner wall of the connecting block 31. The telescopic seat 21 is elastically connected with the probe head 22 through the spring a 23. One end of the spring a 23 is fixedly connected to the side wall of the probe head 22, and the other end of the spring a 23 is fixedly connected to the bottom of the inner wall of the telescopic seat 21. The spring a 23 serves to automatically reset the probe head 22 after movement. The lower surface of the connecting seat 1 is fixedly connected to the upper surface of the connecting block 31. The lower surface of the telescopic seat 21 is fixedly connected with the base 24. The upper surface of the base 24 is fixedly connected to the lower surface of the telescopic seat 21. The inner side wall of the base 24 is provided with a soft brush 25. The soft brush 25 serves to clean the probe head 22 after measurement. The brush head of the soft brush 25 can clean the dust and asphalt fragments attached to the surface of the probe head 22, thereby reducing the abrasion of the probe head 22 by the attached matters.

[0037] Working principle: when the device is in use, the measuring device needs to be manually supported, and measurement errors caused by hand shaking may exist. To this end, the adjustable supporting mechanism 3 is designed. First, the fixed bolt 36 is rotated to make the fixed bolt 36 disengage from the threaded groove of the sliding sleeve 34. Then, the clamping block 35 is pushed outward, and the clamping block 35 slides outward along the sliding groove in the inner wall of the sliding sleeve 34. The sliding block at the bottom disengages from the clamping groove in the inner wall of the telescopic seat 21, thereby canceling the fixation of the sliding sleeve 34. Then, the sliding sleeve 34 is slid downward. During the sliding process of the sliding sleeve 34, the supporting leg 33 and the sliding sleeve 34 are simultaneously rotated around the hinge joint as the center, and the hinge rod 32 and the supporting leg 33 are simultaneously rotated around the hinge joint away from the end of the sliding sleeve 34, so that the lower end of the supporting leg 33 is expanded, thereby achieving the supporting effect. After adjustment, the clamping block 35 is only needed to be loosened, and the clamping block 35 is automatically reset by the elasticity of the spring and is clamped with the clamping groove in the inner wall of the sliding sleeve 34 to complete the limiting. Finally, the fixed bolt 36 is rotated to be fixed with the threaded groove on the surface of the sliding sleeve 34. When the use is completed and contraction is needed, only reverse operation is needed.

[0038] When the asphalt pavement has a gap to be measured, the outlet of the base 24 is aligned with the gap, and then the probe head 22 is pressed downward, the round block on the surface of the probe head 22 presses the spring b37 at the bottom, so that the probe head 22 extends into the gap to measure the depth, and the measurement structure is displayed through the data display; when the measurement is completed, the probe head 22 is released, the probe head 22 is automatically reset by the spring, the probe head 22 is automatically withdrawn from the gap into the inner wall of the telescopic base 21, and at the same time, the inner wall of the base 24 is provided with the annular soft brush 25, which can clean the surface of the probe head 22 during the withdrawal of the probe head 22, so that the probe head 22 can be quickly and conveniently cleaned and stored, and the contact between the probe head 22 and the asphalt ground when the probe head 22 is not used is reduced, so that the wear of the probe head 22 is reduced.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A tool for measuring the depth of a crack in asphalt pavement construction, comprising a connecting seat (1), characterized in that: The surface of the connecting seat (1) is provided with a data display (4), the lower surface of the connecting seat (1) is provided with an adjustable support mechanism (3), and the surface of the connecting seat (1) is provided with a probe head retraction mechanism (2). The adjustable support mechanism (3) comprises a connecting block (31), the side wall of the connecting block (31) is hinged with a hinge rod (32), one end of the hinge rod (32) away from the connecting block (31) is hinged with a support leg (33), the rotation center axis of the support leg (33) is hinged with a sliding sleeve (34), the sliding sleeve (34) is elastically connected with a clamping block (35) through a spring b (37), and the upper surface of the sliding sleeve (34) is threadedly connected with a fixing bolt (36).

2. The crack depth measuring tool for asphalt pavement construction according to claim 1, characterized in that: The probe head retraction mechanism (2) comprises a telescopic seat (21), the telescopic seat (21) is elastically connected with a probe head (22) through a spring a (23), the lower surface of the telescopic seat (21) is fixedly connected with a base (24), and the inner side wall of the base (24) is provided with a soft hair brush (25).

3. The crack depth measuring tool for asphalt pavement construction according to claim 1, characterized in that: The upper surface of the connecting block (31) is fixedly connected to the lower surface of the connecting seat (1), the surface of the clamping block (35) is provided with a threaded groove, and the fixing bolt (36) is threadedly connected in the threaded groove of the clamping block (35).

4. The crack depth measuring tool for asphalt pavement construction according to claim 1, characterized in that: One end of the spring b (37) is fixedly connected to the side wall of the clamping block (35), the other end of the spring b (37) is fixedly connected to the inner side wall of the sliding sleeve (34), the inner wall of the sliding sleeve (34) is provided with a sliding groove, and the clamping block (35) is slidingly connected in the sliding groove of the sliding sleeve (34).

5. The crack depth measuring tool for asphalt pavement construction of claim 1, wherein: The sliding sleeve (34) is slidingly connected to the surface of the telescopic seat (21).

6. The crack depth measuring tool for asphalt pavement construction of claim 2, wherein: One end of the spring a (23) is fixedly connected to the side wall of the probe head (22), the other end of the spring a (23) is fixedly connected to the bottom of the inner wall of the telescopic seat (21), the lower surface of the connecting seat (1) is fixedly connected to the upper surface of the connecting block (31), the surface of the telescopic seat (21) is provided with a clamping groove, and the clamping block (35) is in contact with the clamping groove on the surface of the telescopic seat (21).

7. The crack depth measuring tool for asphalt pavement construction according to claim 2, characterized in that: The inner wall of the telescopic seat (21) is provided with a cavity, and the probe head (22) penetrates and slidingly connects the inner wall of the telescopic seat (21).

8. The crack depth measuring tool for asphalt pavement construction according to claim 2, characterized in that: The telescopic seat (21) penetrates and fixedly connects the inner wall of the connecting seat (1), and the telescopic seat (21) penetrates and fixedly connects the inner wall of the connecting block (31).

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