Highway base compaction degree detection instrument

Abstract

The utility model discloses a road base layer compaction degree detection instrument which comprises a base plate and a sand filling cylinder, the base plate is provided with a foundation pit positioning hole, the road base layer compaction degree detection instrument further comprises an annular cutting mechanism which comprises an annular knife rest, annular cutting blades are symmetrically arranged on the inner annular wall of the annular knife rest, and the sand filling cylinder is arranged on the annular knife rest. The annular tool rest is driven to rotate so as to drive the annular cutting blade to rotate in the mode of being attached to the hole wall of the foundation pit positioning hole. According to the road base compaction degree detection instrument provided by the utility model, the annular knife rest is driven to rotate, so that the annular cutting blade is driven to rotate along the hole wall of the foundation pit positioning hole, and the annular cutting blade performs annular cutting on a roadbed of the foundation pit positioning hole, thereby effectively preventing the roadbed at the pit wall from being loosened due to vibration in the pit drilling process of a drill bit, and ensuring the compactness of the foundation pit. And moreover, it can be ensured that the diameter of the sampling pit is consistent with the diameter of the foundation pit positioning hole, and the detection precision is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of highway engineering, in particular to a highway base compaction degree detection instrument. Background Art

[0002] Compactness is one of the quality inspection indicators of highway subgrade. Generally, the compactness of the subgrade is sampled and tested by the sand filling method. In the prior art, the sampling point is generally located through the through hole on the substrate and the sampling pit is dug by tools such as a screwdriver and a flat shovel. The depth needs to be controlled, which is time-consuming and labor-intensive.

[0003] Publication number CN211143040U, publication date 2020-07-31, discloses a highway base compaction test sampler, including a base plate, a first slide rail is fixedly connected to the top of the base plate, a second slide rail is fixedly connected to the top of the base plate, a scale plate is fixedly connected to one side of the second slide rail, a slide plate is movably connected to one side of the first slide rail, a slide plate is movably connected to one side of the second slide rail, a telescopic column is fixedly connected to the top of the base plate, a positioning plate is fixedly connected to the top of the telescopic column, a positioning plate is movably connected to one side of the first slide rail, and a positioning plate is movably connected to one side of the second slide rail, a support column is fixedly connected to the top of the slide plate, a handle is fixedly connected to the top of the support column, a motor is fixedly connected to the bottom of the slide plate, a drill bit is fixedly connected to the bottom of the base plate, a support plate is movably connected to the top of the base plate, a screw rod is fixedly connected to the top of the base plate, a connecting plate is fixedly connected to the bottom of the supporting plate, and a universal wheel is fixedly connected to the bottom of the connecting plate.

[0004] In the prior art including the above-mentioned patent, a drill bit and a motor cooperate to dig a pit, thereby achieving the effect of rapid pit digging and depth control. However, during the pit drilling process, the vibration of the drill bit may cause the roadbed at the pit wall to loosen, resulting in inaccurate data obtained from subsequent sand filling. Utility Model Content

[0005] The utility model aims to provide a highway base compaction detection instrument, which is used to solve the problem that the foundation pit wall is loosened due to the hollowness of the drill bit, thus affecting the detection accuracy.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a road base compaction detection instrument, comprising a base plate and a sand filling cylinder, the base plate is provided with a foundation pit positioning hole, and further comprising:

[0007] The circular cutting mechanism comprises an annular tool holder, on the inner ring wall of which circular cutting blades are symmetrically arranged, and the annular tool holder is driven to rotate so as to drive the circular cutting blades to rotate in contact with the wall of the foundation pit positioning hole.

[0008] Preferably, it further comprises an annular slide rail, a rotating ring is rotatably arranged inside the annular slide rail, a rotating rod is slidably arranged on the rotating ring, and a push block is fixedly arranged on the rotating rod.

[0009] Preferably, a locking mechanism is symmetrically arranged in the annular slide rail, and the locking mechanism includes a locking block, and the locking block cooperates with the rotating ring latch.

[0010] Preferably, a sand filling cylinder limiting mechanism is symmetrically arranged in the annular slide rail, and the sand filling cylinder limiting mechanism comprises a limiting block and an arc block.

[0011] Preferably, an annular support plate is fixedly provided on the annular slide rail.

[0012] Preferably, a limiting rod is fixedly connected to the bottom surface of the substrate.

[0013] In the above technical scheme, the utility model provides a highway base compaction detection instrument, which has the following beneficial effects: by driving the annular tool holder to rotate, the circular cutting blade is driven to rotate along the hole wall of the foundation pit positioning hole, so that the circular cutting blade performs circular cutting on the roadbed of the foundation pit positioning hole. Compared with the prior art, there is no need to set up additional pit digging equipment, the structure is simple, and no motor start is required, which effectively saves the manufacturing cost of the equipment. At the same time, the pit digging operation is performed by circular cutting. Compared with the pit digging with a drill bit, the incision is more neat, and it can ensure that the diameter of the sampling pit is consistent with the diameter of the foundation pit positioning hole, thereby effectively avoiding the loosening of the roadbed at the pit wall due to vibration during the drilling process of the drill bit, resulting in inaccurate data obtained by subsequent sand filling, and it can ensure that the diameter of the sampling pit is consistent with the diameter of the foundation pit positioning hole, effectively improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 A schematic diagram of a top-down stereoscopic structure provided for an embodiment of the utility model;

[0016] Figure 2 A bottom-up stereoscopic structural schematic diagram provided for an embodiment of the utility model;

[0017] Figure 3 A schematic diagram of a front cross-sectional structure provided for an embodiment of the utility model;

[0018] Figure 4 A schematic diagram of the structure of the present invention;

[0019] Figure 5 A schematic diagram of the structural changes of A provided in an embodiment of the utility model.

[0020] Description of reference numerals:

[0021] 1. Base plate; 11. Limiting rod; 12. Annular slide rail; 121. Annular groove; 13. Foundation pit positioning hole; 14. Annular cutting mechanism; 141. Annular tool holder; 142. Rotating ring; 1421. Locking hole; 143. Annular cutting blade; 15. Annular support plate; 16. Locking mechanism; 161. Locking block; 162. First spring; 163. Locking groove; 17. Rotating rod; 171. Pushing block; 18. Limiting mechanism of sand filling cylinder; 181. Fixed block; 182. Second spring; 183. Limiting block; 184. Pushing plate; 185. Slide groove; 186. Arc block; 2. Sand filling cylinder. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-5 As shown, a road base compaction detection instrument includes a base plate 1 and a sand filling tube 2, the base plate 1 is provided with a foundation pit positioning hole 13, and also includes:

[0024] The circular cutting mechanism 14 comprises an annular tool holder 141 , on the inner ring wall of which are symmetrically provided circular cutting blades 143 . The annular tool holder 141 is driven to rotate so as to drive the circular cutting blades 143 to rotate in close contact with the wall of the foundation pit positioning hole 13 .

[0025] Specifically, it also includes an annular slide rail 12, a rotating ring 142 is rotatably arranged in the annular slide rail 12, a rotating rod 17 is slidably arranged on the rotating ring 142, and a push block 171 is fixedly arranged on the rotating rod 17. A locking mechanism 16 is symmetrically arranged in the annular slide rail 12, and the locking mechanism 16 includes a locking block 161, and the locking block 161 cooperates with the latch of the rotating ring 142. First, the base plate 1 is moved to the point to be measured, so that the foundation pit positioning hole 13 corresponds to the point to be measured, and then the circular cutting blade 143 is inserted into the roadbed to be measured.

[0026] Furthermore, the rotating rod 17 is manually pressed to move along the locking hole 1421 opened on the rotating ring 142, thereby pushing the locking block 161 that cooperates with the latch of the locking hole 1421 to exit the locking hole 1421 and enter the locking groove 163, and squeeze the first spring 162, thereby unlocking the rotating ring 142.

[0027] Furthermore, the rotating rod 17 is manually pulled to slide along the annular groove 121 opened on the top of the annular slide rail 12, thereby driving the rotating ring 142 to slide in the annular slide rail 12, thereby driving the annular tool holder 141 fixedly connected to the rotating ring 142 to rotate, thereby driving the circular cutting blade 143 to rotate along the hole wall of the foundation pit positioning hole 13, so that the circular cutting blade 143 performs circular cutting on the roadbed of the foundation pit positioning hole 13, and then the cut roadbed is taken out and collected in a plastic bag for weighing, and then the base plate 1 is removed, and sand is filled through the sand filling tube 2.

[0028] In the above technology, by driving the annular tool holder 141 to rotate, the circular cutting blade 143 is driven to rotate along the hole wall of the foundation pit positioning hole 13, so that the circular cutting blade 143 performs circular cutting on the roadbed of the foundation pit positioning hole 13. Compared with the prior art, there is no need to set up additional pit digging equipment, the structure is simple, and no motor start is required, which effectively saves the manufacturing cost of the equipment. At the same time, the pit digging operation is performed by circular cutting. Compared with the pit digging by a drill bit, the incision is more neat, which effectively avoids the loosening of the roadbed at the pit wall due to vibration during the drilling process of the drill bit, resulting in inaccurate data obtained by subsequent sand filling, and can ensure that the diameter of the sampling pit is consistent with the diameter of the foundation pit positioning hole 13, effectively improving the detection accuracy.

[0029] As a further embodiment of the present invention, a sand filling cylinder limiting mechanism 18 is symmetrically arranged in the annular slide rail 12 , and the sand filling cylinder limiting mechanism 18 includes a limiting block 183 and an arc block 186 .

[0030] Specifically, Figure 4 to Figure 5 As shown, the rotating rod 17 is manually pressed to move along the lock hole 1421 opened on the rotating ring 142, so as to push the lock block 161 matched with the latch of the lock hole 1421 to exit the lock hole 1421 and enter the lock groove 163, and squeeze the first spring 162, so as to unlock the rotating ring 142. At the same time, the push block 171 on the rotating rod 17 also moves with the rotating rod 17 and squeezes the third spring, so that the push block 171 is separated from the fixed block 181 set in the annular slide rail 12, so that the fixed block 181 1 is opened, and at the same time, the arc block 186 loses the push of the push block 171, so that the second spring 182 pushes the push plate 184 to move (the initial state of the second spring 182 is a compressed state), thereby driving the limit block 183 and the arc block 186 to move, so that the limit block 183 moves into the slide groove 185, thereby releasing the limit on the sand filling cylinder 2, so that the sand filling cylinder 2 is removed from the base plate 1, realizing one-rod unlocking multiple locks, with a simple structure, effective saving of manufacturing costs, and easy use.

[0031] As a further embodiment of the present invention, an annular support plate 15 is fixedly provided on the annular slide rail 12 .

[0032] Specifically, when not in use, the rotating rod 17 is moved to the initial position, the sand filling cylinder 2 is placed on the annular support plate 15, and the rotating rod 17 is moved along the locking hole 1421 opened on the rotating ring 142, thereby driving the pushing block 171 to move toward the top of the annular slide rail 12, and the locking block 161 is affected by the force of the rotating rod 17. The first spring 162 recovers its deformation and pushes the locking block 161 to re-enter the locking hole 1421, thereby locking the rotating ring 142 to prevent the circular cutting blade 143 from rotating when not in use and accidentally injuring the staff.

[0033] Furthermore, the push block 171 moves, and pushes the arc block 186 to move in the slide groove 185, thereby driving the push plate 184 to squeeze the second spring 182, thereby driving the limit block 183 to limit the sand filling cylinder 2, so that the sand filling cylinder 2 and the base plate 1 are combined into a whole. At the same time, the circular cutting mechanism 14 arranged on the base plate 1 can effectively reduce the tools required to be carried during detection, and is convenient to carry.

[0034] As a further embodiment of the present invention, a limiting insertion rod 11 is fixedly connected to the bottom surface of the base plate 1 .

[0035] Specifically, by providing the limiting rod 11, the substrate 1 can be placed more stably and is not prone to deviation during ring cutting.

[0036] Working principle: first move the base plate 1 to the position to be measured, so that the foundation pit positioning hole 13 corresponds to the position to be measured, and then insert the circular cutting blade 143 into the roadbed to be measured, and manually press the rotating rod 17 to move along the locking hole 1421 opened on the rotating ring 142, so as to push the locking block 161 matched with the latch of the locking hole 1421 to exit the locking hole 1421 and enter the locking groove 163, and squeeze the first spring 162, so as to unlock the rotating ring 142, and at the same time, the pushing block 171 on the rotating rod 17 also moves with the rotating rod 17, and squeezes the third spring, so that the pushing block 171 is separated from the fixed block 181 set in the annular slide rail 12, so that the notch of the slide groove 185 opened on the fixed block 181 is opened, and at the same time, the arc block 186 loses the pushing of the pushing block 171. Thereby, the second spring 182 pushes the push plate 184 to move, thereby driving the limit block 183 and the arc block 186 to move, so that the limit block 183 moves into the slide groove 185, thereby releasing the limit on the sand filling cylinder 2, so that the sand filling cylinder 2 is removed from the base plate 1, and the rotating rod 17 is manually pulled to slide along the annular groove 121 opened at the top of the annular slide rail 12, thereby driving the rotating ring 142 to slide in the annular slide rail 12, thereby driving the annular tool holder 141 fixedly connected to the rotating ring 142 to rotate, thereby driving the circular cutting blade 143 to rotate along the hole wall of the foundation pit positioning hole 13, so that the circular cutting blade 143 performs circular cutting on the roadbed of the foundation pit positioning hole 13, and then the cut roadbed is taken out and collected in a plastic bag for weighing, and then the base plate 1 is removed, and sand is filled through the sand filling cylinder 2.

[0037] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A road base compaction detection instrument, comprising a base plate (1) and a sand filling cylinder (2), wherein the base plate (1) is provided with a foundation pit positioning hole (13), characterized in that: Also includes: The circular cutting mechanism (14) comprises an annular tool holder (141), on the inner ring wall of which circular cutting blades (143) are symmetrically arranged, and the annular tool holder (141) is driven to rotate so as to drive the circular cutting blades (143) to rotate in contact with the wall of the foundation pit positioning hole (13).

2. A road base compaction detection instrument according to claim 1, characterized in that: It also comprises an annular slide rail (12), a rotating ring (142) is rotatably arranged inside the annular slide rail (12), a rotating rod (17) is slidably arranged on the rotating ring (142), and a push block (171) is fixedly arranged on the rotating rod (17).

3. A road base compaction detection instrument according to claim 2, characterized in that: A locking mechanism (16) is symmetrically arranged inside the annular slide rail (12), and the locking mechanism (16) comprises a locking block (161), and the locking block (161) cooperates with a latch of the rotating ring (142).

4. A road base compaction detection instrument according to claim 2, characterized in that: A sand filling cylinder limiting mechanism (18) is symmetrically arranged in the annular slide rail (12), and the sand filling cylinder limiting mechanism (18) comprises a limiting block (183) and an arc block (186).

5. A road base compaction detection instrument according to claim 2, characterized in that: An annular support plate (15) is fixedly arranged on the annular slide rail (12).

6. A road base compaction detection instrument according to claim 1, characterized in that: A limiting insertion rod (11) is fixedly connected to the bottom surface of the base plate (1).

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