CN212103620U

CN212103620U - Sand filling cylinder for measuring compaction degree of highway subgrade

Info

Publication number: CN212103620U
Application number: CN202020526030.7U
Authority: CN
Inventors: 杜红蕾
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-12
Filing date: 2020-04-12
Publication date: 2020-12-08
Anticipated expiration: 2030-04-12

Abstract

The utility model provides a highway subgrade compactness survey is with irritating a sand section of thick bamboo. The sand filling cylinder for measuring the compaction degree of the highway subgrade comprises a bottom plate; the two first positioning blocks are fixedly arranged at the top of the bottom plate; the cylinder is placed at the top of the bottom plate; the two second positioning blocks are fixedly arranged on two sides of the barrel respectively, positioning grooves are formed in the bottoms of the two second limiting blocks, and the positioning grooves are matched with the first positioning blocks. The utility model provides a highway subgrade compactness survey is with irritating a sand section of thick bamboo has the advantage that can avoid survey in-process bottom plate to take place to remove, ensure that the inner chamber of barrel bottom and the hole of irritating sand on the bottom plate just align, avoid flowing out fine sand, reduce the error of survey data, guarantee the accuracy of subgrade compactness survey result because of the clearance between barrel removal in-process fine sand switch board and the inner baffle.

Description

Sand filling cylinder for measuring compaction degree of highway subgrade

Technical Field

The utility model relates to a building technical field especially relates to a highway subgrade compactness survey is with irritating a sand section of thick bamboo.

Background

In the process of constructing the highway, the quality of the roadbed plays a crucial role in the service life of the highway, and the only factor for embodying the quality of the roadbed is the compactness of the roadbed. The common tool for measuring the compaction degree of the roadbed is a sand filling cylinder. The basic principle of using the sand filling cylinder to measure the roadbed compactness is to utilize clean and uniform sand with the grain diameter of 0.30-0.60 mm or 0.2-0.50 mm to freely fall into a test hole from the sand filling cylinder, measure the volume of the test hole according to the principle that the unit weight of the clean and uniform sand is unchanged (namely, standard sand is used for replacing aggregate in the test hole), and calculate the actually measured dry density of a sample according to the water content of the aggregate.

The traditional sand filling cylinder has the advantages of simple structure and low cost, and is well favored by construction companies. However, the traditional sand filling cylinder has the defects that the bottom plate is only placed on a measuring point, and the bottom plate is easy to move in the process of digging a test hole and placing a cylinder body for sand filling; there is not corresponding positioning mechanism between bottom plate and the barrel, and when the barrel was placed on the bottom plate, the barrel bottom inner chamber was difficult to aim at with the hole of irritating sand on the bottom plate, and the switch board in the quicksand hole in the barrel when closed, it was gapped with the quicksand hole and easily resulted in there being a little sand outflow when moving. The end result is that the measurement result is liable to have a large error.

Therefore, there is a need to provide a new sand filling cylinder for measuring the compaction degree of a highway subgrade to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The technical problem solved by the utility model is to provide a highway subgrade compactness survey is with irritating a sand section of thick bamboo that can avoid the survey in-process bottom plate to take place to remove, ensure that the inner chamber of barrel bottom just aligns with irritate the husky hole on the bottom plate, avoid removing in-process fine sand switch board and interior baffle at the barrel and flow out fine sand, reduce the error of survey data, guarantee the accuracy of subgrade compactness testing result between the fine sand switch board of clearance.

In order to solve the technical problem, the utility model provides a highway subgrade compactness survey is with irritating a sand section of thick bamboo includes: a base plate; the two first positioning blocks are fixedly arranged at the top of the bottom plate; the cylinder is placed at the top of the bottom plate; the two second positioning blocks are fixedly arranged on two sides of the barrel respectively, positioning grooves are formed in the bottoms of the two second limiting blocks respectively, and the positioning grooves are matched with the first positioning blocks; the inner baffle is fixedly arranged on the inner wall of the cylinder body; the two ends of the fixed rod are respectively and fixedly arranged on the inner walls of the two sides of the barrel body; the two sliding blocks are arranged on the fixed rod in a sliding mode; the switch plate is fixedly arranged at the bottoms of the two sliding blocks, and the bottom of the switch plate is contacted with the top of the inner partition plate; the pull rod is fixedly arranged on one side of the switch board; the pull ring is fixedly arranged at one end of the pull rod, which is far away from the switch board; four stabilizing mean, four stabilizing mean all locates on the bottom plate, four stabilizing mean is the rectangle and distributes.

Preferably, the stabilizing mechanism comprises a nut, a screw rod is installed on the nut in a threaded mode, a spiral tip is welded at the bottom end of the screw rod, a knob is fixedly installed at the top end of the screw rod, four positioning holes are formed in the bottom of the bottom plate, and the spiral tip is correspondingly arranged in the positioning holes respectively.

Preferably, the top of the bottom plate is provided with a sand filling hole, the diameter of the sand filling hole is the same as the inner diameter of the barrel, and the sand filling hole is matched with the barrel.

Preferably, a sand flowing hole is formed in the center of the top of the inner partition plate, a through hole is formed in the switch plate, and the through hole is matched with the sand flowing hole.

Preferably, a through hole is formed in one side of the cylinder, the pull rod is connected with the through hole in a sealing and sliding mode, and a limiting block is fixedly installed on the pull rod.

Preferably, the top fixed mounting of barrel has the funnel, the equal fixed mounting in both sides of barrel has the handle the mounting hole has been seted up to one side of barrel, fixed mounting has the transparent plate in the mounting hole, be equipped with the scale mark on the transparent plate.

Compared with the prior art, the utility model provides a highway subgrade compactness survey is with irritating a sand section of thick bamboo has following beneficial effect:

the utility model provides a sand filling cylinder for measuring the compaction degree of a highway subgrade, which ensures that a bottom plate can not move by drilling a spiral tip into a soil layer; the positioning groove at the bottom of the second positioning block is exactly clamped with the first limiting block, so that the inner cavity at the bottom of the cylinder body is exactly aligned with the sand filling hole in the bottom plate when the cylinder body is placed on the bottom plate; the switch board is always attached to the inner partition board, so that fine sand flowing out of the gap between the fine sand switch board and the inner partition board in the moving process of the cylinder body is avoided, errors of measured data are reduced, and the accuracy of a roadbed compactness measuring result is guaranteed.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of a sand filling cylinder for measuring the compaction degree of a highway subgrade according to the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic top view of the sand canister of the present invention;

fig. 4 is an assembly view of the middle sand cylinder and the transparent plate of the present invention.

Reference numbers in the figures: 1. the sand cylinder comprises a bottom plate, 2, a first positioning block, 3, a sand cylinder, 4, a second positioning block, 5, an inner partition plate, 6, a fixing rod, 7, a sliding block, 8, a switch plate, 9, a pull rod, 10, a pull ring, 11, a nut, 12, a screw rod, 1,3, a spiral pointed end, 14, a funnel, 15 and a transparent plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1-4, wherein fig. 1 is a schematic structural diagram of a sand filling cylinder for determining road bed compactness according to a preferred embodiment of the present invention; FIG. 2 is an enlarged schematic view of part A shown in FIG. 1, and FIG. 3 is a schematic view of a top view of a sand cylinder according to the present invention; fig. 4 is an assembly view of the middle sand cylinder and the transparent plate of the present invention. Highway subgrade compactness survey is with irritating a sand section of thick bamboo includes: a base plate 1; the two first positioning blocks 2 are fixedly arranged at the top of the bottom plate 1; the cylinder 3 is placed at the top of the bottom plate 1; the two second positioning blocks 4 are respectively and fixedly arranged at two sides of the barrel 3, positioning grooves are formed in the bottoms of the two second limiting blocks 4, and the positioning grooves are matched with the first positioning blocks 2; the inner baffle 5 is fixedly arranged on the inner wall of the cylinder 3; two ends of the fixed rod 6 are respectively and fixedly arranged on the inner walls of the two sides of the barrel 3; the two sliding blocks 7 are arranged on the fixed rod 6 in a sliding mode; the switch plate 8 is fixedly arranged at the bottom parts of the two sliding blocks 7, and the bottom part of the switch plate 8 is contacted with the top part of the inner partition plate 5; the pull rod 9 is fixedly arranged on one side of the switch board 8; the pull ring 10 is fixedly arranged at one end of the pull rod 9, which is far away from the switch plate 8; four stabilizing mean, four stabilizing mean all locates on the bottom plate 1, four stabilizing mean is the rectangle and distributes.

Stabilizing mean is including nut 11, lead screw 12 is installed to the screw thread on the nut, the bottom welding of lead screw 12 has spiral tip 13, the top fixed mounting of lead screw 12 has the knob, four locating holes have been seted up to the bottom of bottom plate 1, four spiral tip 13 is located respectively correspondingly in the locating hole.

The top of the bottom plate 1 is provided with a sand filling hole, the diameter of the sand filling hole is the same as the inner diameter of the barrel 3, and the sand filling hole is matched with the barrel 3.

The center of the top of the inner partition plate 5 is provided with a sand flowing hole, the switch plate 8 is provided with a through hole, and the through hole is matched with the sand flowing hole.

A through hole is formed in one side of the cylinder 3, the pull rod 9 is connected with the through hole in a sealing and sliding mode, and a limiting block is fixedly installed on the pull rod 3.

The top fixed mounting of barrel 3 has funnel 14, the equal fixed mounting in both sides of barrel 3 has the handle, the mounting hole has been seted up to one side of barrel 3, fixed mounting has transparent plate 15 in the mounting hole, be equipped with the scale mark on the transparent plate 15.

The utility model provides a highway subgrade compactness survey is with irritating a sand section of thick bamboo's theory of operation as follows: when the device is used, the bottom plate 1 is placed on the horizontal ground of a point to be measured, and the knob is rotated to enable the spiral tip 13 at the bottom of the screw rod 12 to drill into the soil layer, so that the bottom plate 1 cannot move during pit digging; after digging a pit and taking out dug aggregate, then placing the cylinder 3 filled with calibrated fine sand on the bottom plate 1, and enabling the first limiting block 2 to be just positioned in the positioning groove at the bottom of the second positioning block 4 to ensure that the inner cavity at the bottom of the cylinder 3 is just aligned with the sand filling hole on the bottom plate 1; the pull ring 10 is pushed to drive the limiting block on the pull rod 9 to contact the outer wall of the barrel 3, the pull rod 9 drives the switch board 8 to move, the through hole on the switch board 8 is just aligned with the sand flowing hole, fine sand in the barrel 3 begins to flow into the pit, and in the moving process of the pull rod 9 driving the switch board 8, the switch 8 drives the two slide blocks 7 to slide on the fixed rod 6, so that the switch board 8 only can move left and right, the switch board 8 is always attached to the inner partition board 5, and the fine sand flowing out between the fine sand switch board 8 and the inner partition board 5 due to gaps is avoided in the moving process of the barrel 3; in conclusion, the error of the measured data is reduced, and the accuracy of the roadbed compactness measuring result is ensured.

the utility model provides a sand filling cylinder for measuring the compaction degree of a highway subgrade, which ensures that a bottom plate 1 can not move by drilling a spiral pointed end 13 into a soil layer; the positioning groove at the bottom of the second positioning block 4 is just clamped with the first limiting block 2, so that the inner cavity at the bottom of the cylinder 3 is just aligned with the sand filling hole on the bottom plate 1 when the cylinder 3 is placed on the bottom plate 1; the switch plate 8 is always tightly attached to the inner partition plate 5, so that fine sand flowing out of the gap between the fine sand switch plate 8 and the inner partition plate 5 in the moving process of the cylinder 3 is avoided, the error of measured data is reduced, and the accuracy of a roadbed compactness measuring result is ensured.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a highway subgrade compactness survey is with irritating a sand section of thick bamboo which characterized in that includes:

a base plate;

the two first positioning blocks are fixedly arranged at the top of the bottom plate;

the cylinder is placed at the top of the bottom plate;

the two second positioning blocks are fixedly arranged on two sides of the barrel respectively, positioning grooves are formed in the bottoms of the two second positioning blocks respectively, and the positioning grooves are matched with the first positioning blocks;

the inner baffle is fixedly arranged on the inner wall of the cylinder body;

the two ends of the fixed rod are respectively and fixedly arranged on the inner walls of the two sides of the barrel body;

the two sliding blocks are arranged on the fixed rod in a sliding mode;

the switch plate is fixedly arranged at the bottoms of the two sliding blocks, and the bottom of the switch plate is contacted with the top of the inner partition plate;

the pull rod is fixedly arranged on one side of the switch board;

the pull ring is fixedly arranged at one end of the pull rod, which is far away from the switch board;

four stabilizing mean, four stabilizing mean all locates on the bottom plate, four stabilizing mean is the rectangle and distributes.

2. The sand filling cylinder for measuring the compaction degree of the highway subgrade according to claim 1, wherein the stabilizing mechanism comprises a nut, a screw rod is installed on the nut in a threaded mode, a spiral pointed end is welded at the bottom end of the screw rod, a knob is fixedly installed at the top end of the screw rod, four positioning holes are formed in the bottom of the bottom plate, and the four spiral pointed ends are respectively arranged in the corresponding positioning holes.

3. The sand filling cylinder for measuring the compaction degree of the highway subgrade according to claim 1, wherein a sand filling hole is formed in the top of the bottom plate, the diameter of the sand filling hole is the same as the inner diameter of the cylinder body, and the sand filling hole is matched with the cylinder body.

4. The sand filling cylinder for measuring the compaction degree of the highway subgrade according to claim 1, wherein a sand flowing hole is formed in the center of the top of the inner partition plate, a through hole is formed in the switch plate, and the through hole is matched with the sand flowing hole.

5. The sand filling cylinder for measuring the compaction degree of the highway subgrade according to claim 1, wherein a through hole is formed in one side of the cylinder body, the pull rod is connected with the through hole in a sealing and sliding mode, and a limiting block is fixedly installed on the pull rod.

6. The sand filling cylinder for measuring the compaction degree of the highway subgrade according to claim 1, wherein a funnel is fixedly arranged at the top of the cylinder body, handles are fixedly arranged on both sides of the cylinder body, a mounting hole is formed in one side of the cylinder body, a transparent plate is fixedly arranged in the mounting hole, and scale marks are arranged on the transparent plate.