CN214582919U - Bituminous paving crack detection device - Google Patents
Bituminous paving crack detection device Download PDFInfo
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- CN214582919U CN214582919U CN202120549399.4U CN202120549399U CN214582919U CN 214582919 U CN214582919 U CN 214582919U CN 202120549399 U CN202120549399 U CN 202120549399U CN 214582919 U CN214582919 U CN 214582919U
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- plunger
- measuring
- ring
- rack
- asphalt pavement
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Abstract
The utility model discloses a bituminous paving crack detection device, include: the measuring device comprises a measuring rod, a connecting ring, a measuring ring, a supporting rod, a rack sliding mechanism, a first plunger and a second plunger, wherein the supporting rod is connected with the measuring ring and the connecting ring, the measuring rod is arranged in the connecting ring, the rack is arranged at one end, close to one end of the measuring ring, of the measuring rod through the rack sliding mechanism, the first plunger is arranged on the rack, and the second plunger is arranged on the first plunger. The utility model discloses a measure the ring cover on main crack piece degree, detect the intra-annular crack of measurement through first plunger and second plunger to short-term test crack piece degree and crack width provide the basis for the road maintenance.
Description
Technical Field
The utility model relates to a road engineering technical field specifically is a bituminous paving crack detection device.
Background
Cracks, one of the most important types of diseases in asphalt pavements, are generated by the repeated action of traffic load and temperature stress, are the main form of early damage to the pavement, and almost accompany the whole life span of the asphalt pavement. If the cracks are not maintained in time, the strength and stability of the base layer are easily and rapidly reduced, structural diseases such as cracks, pits and the like are formed, the service life is shortened, and the maintenance cost is increased. Research and analysis on the development of different characteristic crack causes, timely and effective crack treatment and adaptability of each crack to filling are all very important for preventing further development and ensuring pavement quality and structural stability. The method is based on crack classification, so that quantitative identification and classification of cracks of each road section are important conditions for maintenance performance research and effective basis for maintenance road section selection, and have important significance for improving road surface performance.
According to the assessment standards of the technical conditions of the roads, the cracking damage degree of the asphalt pavement is judged according to the following standards: the mild degree is that the block degree of main cracks is 0.2-0.5 m, and the average crack width is less than 2 mm; the medium degree is that the block degree of main cracks is less than 0.2m, and the average crack width is between 2 and 5 mm; the severity should be such that the primary fracture bulk is less than 0.2m and the average fracture width is greater than 5 mm. In the prior art, the damage of the asphalt pavement is detected by adopting a manual on-site measuring method, the speed is low, most of engineering personnel are unfamiliar with the detection and evaluation of the crack lumpiness, and the evaluation standards of crack weight, crack weight and crack weight cannot be well distinguished.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bituminous paving crack detection device to short-term test crack lump degree and crack width provide the foundation for the road maintenance.
In order to achieve the above object, the utility model provides an asphalt pavement crack detection device, include:
the measuring device comprises a measuring rod, a connecting ring, a measuring ring, a supporting rod, a rack sliding mechanism, a first plunger and a second plunger, wherein the supporting rod is connected with the measuring ring and the connecting ring, the measuring rod is arranged in the connecting ring, the rack is arranged at one end, close to one end of the measuring ring, of the measuring rod through the rack sliding mechanism, the first plunger is arranged on the rack, and the second plunger is arranged on the first plunger.
Optionally, the measuring stick with be provided with measuring stick telescopic machanism between the go-between, measuring stick telescopic machanism includes: the protection cover is arranged on the connecting ring, the boss is arranged on the measuring rod and located in the protection cover, and the first spring is arranged between the boss and the connecting ring.
Optionally, the rack sliding mechanism includes: connecting seat, driven gear, gear shaft and gear cover, the connecting seat sets up the measuring stick is close to measure ring one end, the connecting seat has the guide rail groove, rack slidable ground sets up the guide rail inslot, the gear cover sets up on the connecting seat, driven gear passes through the gear shaft sets up in the gear cover, driven gear with rack toothing.
Optionally, the rack sliding mechanism further includes: the motor is arranged on the side wall of the gear cover, the output gear is connected with an output shaft of the motor, and the output gear is meshed with the driven gear.
Optionally, a plunger offset mechanism is further disposed between the first plunger and the rack, and the plunger offset mechanism includes: the first plunger is rotatably arranged in the tapered hole of the jacket through the ball head, and one end, far away from the first plunger, of the jacket is connected with the rack.
Optionally, the plunger biasing mechanism further comprises: the second spring, the plug and the ejector pin are arranged in the pin hole in sequence, and the axis of the first plunger is parallel to the axis of the conical hole through the ejector pin.
Optionally, the ejector pin is plural, and the plural ejector pins are arranged along the circumferential direction of the first plunger.
Optionally, the plunger biasing mechanism further comprises: a third spring, the first plunger having a central bore, the second plunger one end being provided with an end cap, the end cap being slidably disposed within the central bore, the third spring being disposed between the ball head and the end cap, such that the second plunger other end extends to the first plunger away from the ball head one end.
Optionally, the outer diameter of the first plunger is 5mm, and the diameter of the second plunger is 2 mm.
Optionally, the measuring ring has an inner diameter of 20 cm.
The utility model provides a bituminous paving crack detection device includes: the measuring device comprises a measuring rod, a connecting ring, a measuring ring, a supporting rod, a rack sliding mechanism, a first plunger and a second plunger, wherein the supporting rod is connected with the measuring ring and the connecting ring, the measuring rod is arranged in the connecting ring, the rack is arranged at one end, close to one end of the measuring ring, of the measuring rod through the rack sliding mechanism, the first plunger is arranged on the rack, and the second plunger is arranged on the first plunger. The utility model discloses a measure the ring cover on main crack piece degree, detect the intra-annular crack of measurement through first plunger and second plunger to short-term test crack piece degree and crack width provide the basis for the road maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
Fig. 1 is a schematic view of an asphalt pavement crack detection device according to an embodiment of the present invention;
fig. 2 is a schematic view of a measuring rod extending mechanism according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a plunger biasing mechanism according to an embodiment of the present invention.
Wherein: 1-measuring rod, 2-button, 3-connecting ring, 4-protective cover, 5-boss, 6-first spring, 7-supporting rod, 8-measuring ring, 9-connecting seat, 10-driven gear, 11-gear shaft, 12-output gear, 13-motor, 14-gear cover, 15-rack, 16-jacket, 161-pin hole, 17-second spring, 18-plug, 19-top pin, 20-ball head, 21-first plunger, 22-third spring and 23-second plunger.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Fig. 1 is an embodiment of the utility model provides a bituminous paving crack detection device schematic diagram, fig. 2 is the utility model discloses a measuring staff telescopic machanism schematic diagram that an embodiment provides, fig. 3 is the utility model discloses a plunger skew mechanism schematic diagram that an embodiment provides, it is shown with reference to fig. 1-3, bituminous paving crack detection device includes: measuring rod 1, connecting ring 3, measuring ring 8, bracing piece 7, rack 15, rack glide, first plunger 21 and second plunger 23. The support rod 7 is connected with the measuring ring 8 and the connecting ring 3, the inner diameter of the measuring ring 3 is 20 cm, 3 support rods 7 are arranged along the circumferential direction of the measuring ring 8, the support rod 7 and the measuring ring 3 are connected to form a cone, and the connecting ring 3 is located at the top end of the cone. The measuring rod 1 is arranged in the connecting ring 3, the rack 15 is arranged at one end, close to the measuring ring 8, of the measuring rod 1 through the rack sliding mechanism, the rack 15 is parallel to the plane of the measuring ring 8, and the measuring rod 1 is parallel to and perpendicular to the plane of the measuring ring 8. The first plunger 21 is provided on the rack 15, and the second plunger 23 is provided on the first plunger 21. The first plunger has an outer diameter of 5mm and the second plunger has a diameter of 2 mm. When the measuring rod is used, the measuring ring 8 is covered on the main crack block degree by the handheld measuring rod 1, the measuring ring can be covered by the circular measuring ring 8 and is certainly moderate or severe, the measuring ring cannot be covered, and the plunger with the bottom 2mm cannot be placed in the crack and is mild. Then, a 5mm plunger was placed in the crack, and the weight was high when the crack could be placed, and the weight was medium when the crack could not be placed.
Referring to fig. 1 to 3, a measuring rod telescoping mechanism is disposed between the measuring rod 1 and the connecting ring 3, and includes: protection casing 4, boss 5 and first spring 6, protection casing 4 sets up on the go-between 3, boss 5 sets up measuring stick 1 is last and is located in the protection casing 4, boss 5 is the annular boss, first spring 6 cover is established on measuring stick 1 and is located boss 5 with between the go-between 3, make measuring stick 1 keep away from measuring ring 8. During the use, press measuring stick 1 and insert the crack detection crack width with the plunger, release measuring stick 1, under the effect of first spring 6, measuring stick 1 rises automatically, makes the plunger break away from the crack.
Referring to fig. 1 to 3, the rack sliding mechanism includes: a connecting seat 9, a driven gear 10, a gear shaft 11 and a gear cover 14. The connecting seat 9 is arranged at one end, close to the measuring ring 8, of the measuring rod 1, the connecting seat 9 is provided with a guide rail groove, the rack 15 is slidably arranged in the guide rail groove, the gear cover 14 is arranged on the connecting seat 9, the driven gear 10 is arranged in the gear cover 14 through the gear shaft 11, and the driven gear 10 is meshed with the rack 15. The manual rotation gear shaft 11 can drive the rack 15 to slide left and right, and the plunger is moved above the crack. The measuring rod 1 held can be turned so that the plunger can be moved to any position in the measuring ring 8. Further, the rack sliding mechanism further includes: the gear cover 14 is provided with an output gear 12 and a motor 13, the motor 13 is arranged on the side wall of the gear cover 14, the output gear 12 is connected with an output shaft of the motor 13, and the output gear 12 is meshed with the driven gear 10. The power supply of the driving motor 13 can be arranged on the connecting base 9, and the control button 2 is arranged at the upper end of the measuring rod 1.
Referring to fig. 1 to 3, a plunger biasing mechanism is further disposed between the first plunger 21 and the rack 15, and includes: a collet 16 and a ball 20. The collet 16 has a tapered bore, and the first plunger 21 is rotatably disposed in the tapered bore of the collet 16 by the ball 20, the first plunger 21 extending out of the tapered bore. The end of the jacket 16 remote from the first plunger 21 is connected to the rack 15. The jacket 16 may be formed by splicing a left block and a right block, and the two blocks are connected by welding, bonding or bolts. Since the crack is not necessarily in the vertical direction, the first plunger 21 may be deflected at an angle from the vertical by the plunger biasing mechanism so as to be inserted into the crack to measure the crack width. Further, the plunger biasing mechanism further comprises: the clamp 16 is provided with a pin hole 161 perpendicular to the axis of the tapered hole, the plug 18, the second spring 17 and the knock pin 19 are sequentially arranged in the pin hole 161, the round head of the knock pin 19 is abutted against the first plunger 21, and the axis of the first plunger 21 is parallel to the axis of the tapered hole through the knock pin 19. The knock pin 19 is plural, and the knock pin 19 is provided in plural along the circumferential direction of the first plunger 21. The plunger biasing mechanism further comprises: a third spring 22, the first plunger 21 having a central hole, the second plunger 23 having an end cap at one end thereof, the end cap being slidably disposed within the central hole, the third spring 22 being disposed between the ball head 20 and the end cap such that the other end of the second plunger 23 extends to the end of the first plunger 21 away from the ball head 20. When measuring a shallow depth crack, the second plunger 23 may be retracted into the central bore of the first plunger 21 to avoid missing the measurement.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (10)
1. The utility model provides an asphalt pavement crack detection device which characterized in that includes: the measuring device comprises a measuring rod, a connecting ring, a measuring ring, a supporting rod, a rack sliding mechanism, a first plunger and a second plunger, wherein the supporting rod is connected with the measuring ring and the connecting ring, the measuring rod is arranged in the connecting ring, the rack is arranged at one end, close to one end of the measuring ring, of the measuring rod through the rack sliding mechanism, the first plunger is arranged on the rack, and the second plunger is arranged on the first plunger.
2. The asphalt pavement crack detection device according to claim 1, wherein a measuring rod telescoping mechanism is disposed between the measuring rod and the connection ring, and the measuring rod telescoping mechanism includes: the protection cover is arranged on the connecting ring, the boss is arranged on the measuring rod and located in the protection cover, and the first spring is arranged between the boss and the connecting ring.
3. The asphalt pavement crack detecting device according to claim 1, wherein the rack sliding mechanism includes: connecting seat, driven gear, gear shaft and gear cover, the connecting seat sets up the measuring stick is close to measure ring one end, the connecting seat has the guide rail groove, rack slidable ground sets up the guide rail inslot, the gear cover sets up on the connecting seat, driven gear passes through the gear shaft sets up in the gear cover, driven gear with rack toothing.
4. The asphalt pavement crack detecting device according to claim 3, wherein the rack sliding mechanism further comprises: the motor is arranged on the side wall of the gear cover, the output gear is connected with an output shaft of the motor, and the output gear is meshed with the driven gear.
5. The asphalt pavement crack detecting device according to claim 1, wherein a plunger biasing mechanism is further provided between the first plunger and the rack, the plunger biasing mechanism comprising: the first plunger is rotatably arranged in the tapered hole of the jacket through the ball head, and one end, far away from the first plunger, of the jacket is connected with the rack.
6. The asphalt pavement crack detecting device according to claim 5, wherein the plunger biasing mechanism further comprises: the second spring, the plug and the ejector pin are arranged in the pin hole in sequence, and the axis of the first plunger is parallel to the axis of the conical hole through the ejector pin.
7. The device according to claim 6, wherein the knock pin is plural, and the plural knock pins are arranged in a circumferential direction of the first plunger.
8. The asphalt pavement crack detecting device according to claim 5, wherein the plunger biasing mechanism further comprises: a third spring, the first plunger having a central bore, the second plunger one end being provided with an end cap, the end cap being slidably disposed within the central bore, the third spring being disposed between the ball head and the end cap, such that the second plunger other end extends to the first plunger away from the ball head one end.
9. The asphalt pavement crack detecting device according to claim 1, wherein the first plunger has an outer diameter of 5mm and the second plunger has a diameter of 2 mm.
10. The asphalt pavement crack detection device of claim 1, wherein the measuring ring has an inner diameter of 20 centimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120549399.4U CN214582919U (en) | 2021-03-17 | 2021-03-17 | Bituminous paving crack detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120549399.4U CN214582919U (en) | 2021-03-17 | 2021-03-17 | Bituminous paving crack detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214582919U true CN214582919U (en) | 2021-11-02 |
Family
ID=78320315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120549399.4U Expired - Fee Related CN214582919U (en) | 2021-03-17 | 2021-03-17 | Bituminous paving crack detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214582919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116295191A (en) * | 2023-05-22 | 2023-06-23 | 山东津岳环保设备有限公司 | Device for detecting axial offset of V-shaped girth weld of sealed tank and control method |
-
2021
- 2021-03-17 CN CN202120549399.4U patent/CN214582919U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116295191A (en) * | 2023-05-22 | 2023-06-23 | 山东津岳环保设备有限公司 | Device for detecting axial offset of V-shaped girth weld of sealed tank and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211102 |