Road engineering roadbed compactness detection equipment

Abstract

The utility model discloses highway engineering roadbed compactness detection equipment which comprises a base plate, a reference hole is formed in the middle of the base plate, a plurality of limiting grooves are formed in the outer wall of the base plate in an annular array mode, and first springs are fixedly connected to the inner walls of the bottom ends of the limiting grooves. The top ends of the first springs are fixedly connected with limiting blocks, the sides, away from the base plate, of the multiple limiting blocks are jointly and fixedly connected with a transmission plate, the two sides of the transmission plate are fixedly connected with holding lugs, extrusion grooves are formed in the bottom end of the transmission plate in an annular array mode, and the base plate is slidably connected with a plurality of circular shafts in a penetrating mode corresponding to the extrusion grooves. The sand filling device has the advantages that the extrusion blocks can be transmitted only by pressing the transmission plate downwards, the multiple extrusion blocks extrude and limit the sand filling barrel at the same time, the axis of the sand filling barrel and the axis of the datum hole are kept consistent, follow-up operation of the sand filling method is facilitated, the structure is simple, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to compaction degree detection technical field, specifically is a highway engineering roadbed compaction degree detection equipment. BACKGROUND

[0002] Sand filling method is one of the main methods for measuring compaction degree in highway engineering site, and is especially suitable for density measurement of fine-grained soil, sandy soil and gravel soil. The basic principle of sand filling method is to use clean and uniform sand of a certain particle size (such as 0.25-0.50mm or 0.30-0.60mm) to freely fall from a certain height into a test hole, and to measure the volume of the test hole according to the principle of constant unit weight, and then to calculate the measured dry density of the sample.

[0003] The existing sand filling method operation steps are generally divided into placing base plate and digging hole, weighing sample quality, sampling and measuring, sand filling preparation, sand filling operation and the like. When the sand filling operation step is carried out, the sand filling barrel needs to be aligned with the test hole to ensure the accuracy requirement. However, the existing sand filling barrel and base plate lack calibration structure, and can only be calibrated by measuring tools, which is inconvenient to use. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a highway engineering roadbed compaction degree detection equipment to solve the problems in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a highway engineering roadbed compaction degree detection equipment, which comprises a base plate, a reference hole is formed in the middle position of the base plate, a plurality of limiting grooves are formed in the outer wall of the base plate in a ring array, a first spring is fixedly connected to the inner wall of the bottom end of each limiting groove, a limiting block is fixedly connected to the top end of the first spring, a transmission plate is fixedly connected to the side of the limiting blocks away from the base plate, a handle is fixedly connected to the two sides of the transmission plate, an extrusion groove is formed in the bottom end of the transmission plate in a ring array, a plurality of shafts are connected to the transmission plate through the extrusion groove and are connected in a sliding mode, the shafts and the limiting grooves formed in a ring array are arranged alternately, an extrusion block is fixedly connected to one end of each shaft, a second spring is arranged on each shaft, one end of the second spring is fixedly connected to the inner wall of the base plate, and the other end of the second spring is fixedly connected to the extrusion block.

[0006] Preferably, the side of the extrusion block is fixedly connected with a rubber layer, and the rubber layer is designed as an anti-skid structure.

[0007] Preferably, the transmission plate is designed as a ring structure, and the bottom end of the transmission plate is designed as a convex structure.

[0008] Preferably, the side of the extrusion groove close to the base plate is through, and the side of the extrusion groove away from the base plate is designed as an inclination.

[0009] Preferably, the side of the round shaft away from the extrusion block is designed as an inclined structure, and the side of the round shaft away from the extrusion block is in sliding connection with the extrusion groove.

[0010] Compared with the prior art, the beneficial effects of the utility model are that the extrusion blocks can be driven by only pressing the transmission plate, the sand filling barrels are simultaneously extruded and limited by the extrusion blocks, the axis of the sand filling barrel is kept consistent with the axis of the reference hole, the subsequent operation of the sand filling method is facilitated, the structure is simple, and the sand filling method is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a front view structural schematic diagram of the utility model;

[0012] Figure 2 It is a structural state schematic diagram of the utility model;

[0013] Figure 3 It is a front view structural sectional view of the utility model;

[0014] Figure 4 It is a structural side view sectional view of the utility model.

[0015] In the drawing: 1, base plate; 2, reference hole; 3, limiting groove; 4, first spring; 5, limiting block; 6, transmission plate; 7, handle lug; 8, extrusion groove; 9, round shaft; 10, extrusion block; 11, second spring; 12, rubber layer. DETAILED DESCRIPTION

[0016] 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, not 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.

[0017] Please refer to Figures 1-4The utility model provides a technical scheme: a highway engineering roadbed compactness detection equipment, including the base plate 1, the base plate 1 middle position is equipped with benchmark hole 2, the base plate 1 outer wall is annular array and is equipped with a plurality of limit slot 3, a plurality of limit slot 3 bottom end inner wall all are fixedly connected with first spring 4, first spring 4 top all are fixedly connected with the limit block 5, a plurality of limit block 5 away from the side of base plate 1 jointly fixedly connected with transmission plate 6, transmission plate 6 both sides all are fixedly connected with the handle ear 7, transmission plate 6 bottom end is annular array and is equipped with extrusion slot 8, the base plate 1 corresponding extrusion slot 8 is penetrated and is connected with a plurality of round shaft 9 of sliding, and the limit slot 3 of annular array is set up with the staggered setting of round shaft 9, and one end of round shaft 9 all is fixedly connected with extrusion block 10, and all are set with second spring 11 on round shaft 9, and one end of second spring 11 is fixedly connected with the inner wall of base plate 1, and one end of second spring 11 away from the inner wall of base plate 1 is fixedly connected with extrusion block 10.

[0018] The utility model discloses a technical scheme: a highway engineering roadbed compactness detection equipment, including the base plate 1, the base plate 1 middle position is equipped with benchmark hole 2, the base plate 1 outer wall is annular array and is equipped with a plurality of limit slot 3, a plurality of limit slot 3 bottom end inner wall all are fixedly connected with first spring 4, first spring 4 top all are fixedly connected with the limit block 5, a plurality of limit block 5 away from the side of base plate 1 jointly fixedly connected with transmission plate 6, transmission plate 6 both sides all are fixedly connected with the handle ear 7, transmission plate 6 bottom end is annular array and is equipped with extrusion slot 8, the base plate 1 corresponding extrusion slot 8 is penetrated and is connected with a plurality of round shaft 9 of sliding, and the limit slot 3 of annular array is set up with the staggered setting of round shaft 9, and one end of round shaft 9 all is fixedly connected with extrusion block 10, and all are set with second spring 11 on round shaft 9, and one end of second spring 11 is fixedly connected with the inner wall of base plate 1, and one end of second spring 11 away from the inner wall of base plate 1 is fixedly connected with extrusion block 10.

[0019] Specifically, when using the utility model, after placing the sand filling barrel on the top of the base plate 1, the transmission plate 6 is pressed down through the handle ear 7, the transmission plate 6 drives the limit block 5 to extrude the first spring 4, at the same time, the transmission plate 6 moves along the limit slot 3 towards the ground direction through the limit block 5, the moving transmission plate 6 further extrudes the plurality of round shafts 9 through the plurality of extrusion slots 8, the extruded round shafts 9 stretch the second springs 11, at the same time, the second round shafts 9 drive the extrusion blocks 10 and the rubber layers 12 to extrude the sand filling barrel, the plurality of extrusion blocks 10 extrude the sand filling barrel at the same time, so that the axis of the sand filling barrel is consistent with the axis of the benchmark hole 2.

[0020] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A highway engineering roadbed compactness detection device, characterized in that, Including the substrate (1), the reference hole (2) is opened at the middle position of the substrate (1), the outer wall of the substrate (1) is annular array opening is provided with a plurality of limiting grooves (3), a plurality of limiting grooves (3) bottom end inner wall is all connected with the first spring (4), the first spring (4) top is all connected with the limiting block (5), a plurality of limiting block (5) away from the substrate (1) one side is commonly connected with the transmission plate (6), the transmission plate (6) both sides are all connected with the handle ear (7), the transmission plate (6) bottom is annular array opening is provided with extrusion slot (8), the substrate (1) corresponds extrusion slot (8) and is connected with a plurality of circular shafts (9) and sliding, the circular shaft (9) and the limiting groove (3) of annular array opening are staggered, the circular shaft (9) one end is all connected with extrusion block (10), the circular shaft (9) all are equipped with the second spring (11), the second spring (11) one end is connected with the inner wall of the substrate (1), the second spring (11) away from the inner wall of the substrate (1) one end is connected with extrusion block (10).

2. A highway engineering roadbed compactness detection device according to claim 1, characterized in that: The extrusion block (10) one side is all connected with rubber layer (12), the rubber layer (12) is antiskid structure design.

3. The highway engineering roadbed compactness detection device according to claim 1, characterized in that: The transmission plate (6) is annular structure design, the transmission plate (6) bottom is convex structure design.

4. The highway engineering roadbed compactness detection device according to claim 1, characterized in that: The extrusion slot (8) is close to the side of the substrate (1) and is through, the extrusion slot (8) away from the substrate (1) one side is inclined to be opened.

5. The highway engineering roadbed compactness detection device according to claim 1, characterized in that: The circular shaft (9) away from the side of extrusion block (10) is inclined structure design, the circular shaft (9) away from the side of extrusion block (10) and extrusion slot (8) sliding connection.

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