Highway subgrade compaction degree testing equipment
By designing a compaction table, connecting rope, and sliding block in combination with the use of a rotating disc and rollers, the efficiency and accuracy problems of traditional compaction testing methods are solved, enabling rapid and stable subgrade compaction testing, reducing the impact of human factors, and protecting the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGJIAO TONGLI CONSTR
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional compaction testing methods, such as the sand cone method and the ring cutter method, are time-consuming, complex to operate, and highly susceptible to human factors, making it difficult to meet the high-efficiency and accurate requirements of modern highway construction.
A roadbed compaction testing device was designed. By setting up a compaction platform, connecting rope, sliding block and winding wheel, the winding wheel is driven to rotate by a rotating swivel disc, realizing the up and down movement and free fall motion of the compaction platform. Combined with the rolling of the roller, stable extrusion testing is carried out, and buffer protection is provided by the cooperation of movable groove and spring.
It enables rapid and stable detection of roadbed compaction, reduces the influence of human factors, improves detection efficiency and accuracy, and prevents equipment damage.
Smart Images

Figure CN224148670U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of highway engineering, and in particular to a highway subgrade compaction testing device, belonging to the field of subgrade testing technology. Background Technology
[0002] To better ensure driving safety, it is necessary to test the roadbed. Only after the quality of the roadbed is guaranteed can subsequent construction be carried out. The most critical test data is the compaction degree test of the roadbed. The compaction degree of the highway roadbed is one of the important indicators for evaluating the quality of the highway. It directly affects the durability, driving safety and service life of the highway.
[0003] Traditional compaction testing methods, such as the sand cone method and the ring cutter method, have drawbacks such as long testing time, complex operation, and great influence from human factors, making it difficult to meet the needs of modern highway construction for high efficiency and accuracy.
[0004] To address this, a test device for the compaction degree of highway subgrade is proposed. Utility Model Content
[0005] In view of this, the present invention provides a highway subgrade compaction testing device to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.
[0006] The technical solution of this utility model is as follows: a highway subgrade compaction test device includes a sliding sleeve, a compaction table, and a mounting plate. A connecting sleeve is fixedly installed at the bottom of the sliding sleeve, and a support plate is movably installed at the bottom of the connecting sleeve. The compaction table is slidably installed inside the sliding sleeve via a sliding block. A connecting rope is fixedly connected to the top of the compaction table. A winding wheel is rotatably installed at the rear end of the sliding sleeve, and the connecting rope is wound around the outside of the winding wheel. A first rotating wheel and a second rotating wheel are rotatably installed at the top of the sliding sleeve. The mounting plate is fixedly installed inside the sliding sleeve, and a compression plate is movably installed at the bottom of the mounting plate. Movable rods are fixedly installed on the sides of the mounting plate and the compression plate that are close to each other, and springs are compressed at the ends of the movable rods that are close to each other.
[0007] More preferably, the connecting sleeve and the support plate are movably installed via a rotating seat, and the compaction table and the connecting rope are fixedly connected via a connecting ring.
[0008] More preferably, a swivel disc is fixedly installed on the outer side of the winding wheel, and a protective cover that cooperates with the first rotating wheel and the second rotating wheel is fixedly installed on the top of the sliding sleeve.
[0009] More preferably, the connecting rope is wound around the outside of the first rotating wheel and the second rotating wheel, and a roller that cooperates with the sliding block is rotatably installed on the inside of the compaction table.
[0010] More preferably, the movable rod is fitted with a movable sleeve on its outer side, and the movable rod and the movable sleeve are slidably installed together.
[0011] More preferably, both the extrusion plate and the mounting plate are provided with movable holes corresponding to the connecting rope, and the two sides of the extrusion plate are provided with movable grooves corresponding to the sliding blocks.
[0012] The present invention has the following advantages due to the adoption of the above technical solution:
[0013] I. This utility model, through the cooperation of a compaction platform, a connecting rope, a sliding block, and a winding wheel, utilizes a rotating disc to drive the winding wheel to rotate. The winding wheel then winds up the connecting rope, allowing the connecting rope to pull the compaction platform up and down within the platform. During this up-and-down movement, the compaction platform slides along the outer side of the sliding block, and the rollers roll against the sliding block, making the compaction platform more stable during movement. Releasing the disc allows the compaction platform to undergo free fall, enabling it to contact the roadbed and compress it. By observing the degree of roadbed subsidence, the compaction status of the roadbed can be detected.
[0014] II. This utility model, through the interaction of a movable groove, a spring, a movable sleeve, and a movable rod, allows the top of the compaction table to contact the extrusion plate during the up-and-down movement of the compaction table. The movable groove cooperates with the sliding block, allowing the mounting plate to slide along the outer side of the sliding block. This enables the extrusion plate to drive the movable rod to move inside the movable sleeve. At the same time, the spring between the movable rods can be easily compressed, providing a buffer during the contact between the compaction table and the extrusion plate, preventing excessive winding force that could damage the internal structure of the compaction table.
[0015] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1This is a first perspective view of the present utility model;
[0018] Figure 2 This is a second perspective view of the present invention;
[0019] Figure 3 This is a three-dimensional structural diagram of the internal structure of the sliding sleeve of this utility model;
[0020] Figure 4 This is a three-dimensional structural diagram of the installation of the compaction table and sliding block of this utility model.
[0021] Figure 5 This is a three-dimensional structural diagram of the roller and sliding block of this utility model;
[0022] Figure 6 This is a three-dimensional structural diagram of the movable rod and movable sleeve of this utility model.
[0023] Reference numerals: 1. Sliding sleeve; 101. Connecting sleeve; 102. Support plate; 103. Rotating seat; 2. Compacting table; 201. Sliding block; 202. Connecting ring; 203. Connecting rope; 204. First rotating wheel; 205. Second rotating wheel; 206. Protective cover; 207. Winding wheel; 208. Plum blossom disc; 209. Roller; 3. Mounting plate; 301. Movable rod; 302. Movable sleeve; 303. Extrusion plate; 304. Spring; 305. Movable hole; 306. Movable groove. Detailed Implementation
[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.
[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0026] like Figures 1-6As shown, this utility model embodiment provides a highway subgrade compaction testing device, including: a sliding sleeve 1, a compaction table 2, and a mounting plate 3. A connecting sleeve 101 is fixedly installed at the bottom of the sliding sleeve 1, and a support plate 102 is movably installed at the bottom of the connecting sleeve 101. The compaction table 2 is slidably installed inside the sliding sleeve 1 via a sliding block 201. A connecting rope 203 is fixedly connected to the top of the compaction table 2. A winding wheel 207 is rotatably installed at the rear end of the sliding sleeve 1, and the connecting rope 203 is wound around the outside of the winding wheel 207. The top of the sliding sleeve 1 is rotatably mounted with a first rotating wheel 204 and a second rotating wheel 205. The sliding sleeve 1 is fixedly mounted with an installation plate 3. The bottom of the installation plate 3 is movably mounted with a pressing plate 303. Movable rods 301 are fixedly mounted on the sides of the installation plate 3 and the pressing plate 303 that are close to each other. Springs 304 are compressed and mounted on the ends of the movable rods 301 that are close to each other. The connecting sleeve 101 and the support plate 102 are movably mounted through a rotating seat 103. The compaction table 2 and the connecting rope 203 are fixedly connected through a connecting ring 202.
[0027] During the up-and-down movement of the compaction table 2, it can slide along the outer side of the sliding block 201. In conjunction with the roller 209, it can roll with the sliding block 201, making the compaction table 2 more stable during movement. By releasing the plum blossom disc 208, the compaction table 2 can make free fall motion, allowing the compaction table 2 to contact the roadbed, thereby squeezing the roadbed. The degree of roadbed subsidence can be observed.
[0028] Reference Figures 2-4 A flower pattern disc 208 is fixedly installed on the outer side of the winding wheel 207. A protective cover 206 that cooperates with the first rotating wheel 204 and the second rotating wheel 205 is fixedly installed on the top of the sliding sleeve 1. The connecting rope 203 is wound around the outer side of the first rotating wheel 204 and the second rotating wheel 205. A roller 209 that cooperates with the sliding block 201 is rotatably installed on the inner side of the compaction table 2.
[0029] During the up-and-down movement of the compaction table 2, it can slide along the outer side of the sliding block 201. In conjunction with the roller 209, it can roll with the sliding block 201, making the compaction table 2 more stable during movement. By releasing the plum blossom disc 208, the compaction table 2 can make free fall motion, allowing the compaction table 2 to contact the roadbed, thereby squeezing the roadbed. The degree of roadbed subsidence can be observed.
[0030] Reference Figures 5-6 The movable rod 301 is fitted with a movable sleeve 302 on its outer side. The movable rod 301 and the movable sleeve 302 are slidably installed together. Both the extrusion plate 303 and the mounting plate 3 are provided with movable holes 305 corresponding to the connecting rope 203. The extrusion plate 303 is provided with movable grooves 306 corresponding to the sliding block 201 on both sides.
[0031] The movable groove 306 can cooperate with the sliding block 201, allowing the mounting plate 3 to slide along the outside of the sliding block 201. This allows the extrusion plate 303 to drive the movable rod 301 to move inside the movable sleeve 302. At the same time, the spring 304 between the movable rods 301 can be easily compressed, which can buffer the contact between the compaction table 2 and the extrusion plate 303, preventing excessive winding force from causing damage to the internal parts of the compaction table 2.
[0032] In operation, this invention works as follows: Rotating the swivel disc 208 drives the winding wheel 207 to rotate, which in turn winds up the connecting rope 203. This allows the connecting rope 203 to pull the compaction table 2 up and down within the compaction table 2. During this movement, the compaction table 2 slides along the outer side of the sliding block 201, and the roller 209 rolls against the sliding block 201, making the compaction table 2 more stable during movement. Releasing the swivel disc 208 allows the compaction table 2 to fall freely, making it contact the roadbed and thus compress the roadbed. The resulting depressions in the roadbed are then observed. The compaction level can be detected by measuring the compaction level of the roadbed. During the up-and-down movement of the compaction table 2, the top of the compaction table 2 can contact the extrusion plate 303. The movable groove 306 can cooperate with the sliding block 201, allowing the mounting plate 3 to slide along the outside of the sliding block 201. The extrusion plate 303 can drive the movable rod 301 to move inside the movable sleeve 302. At the same time, the spring 304 set between the movable rods 301 can be easily compressed, which can easily buffer the compaction table 2 during the contact with the extrusion plate 303, preventing excessive winding force from causing damage to the internal compaction of the compaction table 2.
[0033] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A highway subgrade compaction testing apparatus, characterized by: The device includes a sliding sleeve (1), a compaction table (2), and a mounting plate (3). A connecting sleeve (101) is fixedly installed at the bottom of the sliding sleeve (1), and a support plate (102) is movably installed at the bottom of the connecting sleeve (101). The compaction table (2) is slidably installed inside the sliding sleeve (1) via a sliding block (201). A connecting rope (203) is fixedly connected to the top of the compaction table (2). A winding wheel (207) is rotatably installed at the rear end of the sliding sleeve (1). The connecting rope (203) is wound around... Around the outside of the take-up reel (207), the top of the sliding sleeve (1) is rotatably mounted with a first rotating wheel (204) and a second rotating wheel (205). The inside of the sliding sleeve (1) is fixedly mounted with an installation plate (3). The bottom of the installation plate (3) is movably mounted with a pressing plate (303). Movable rods (301) are fixedly mounted on the sides of the installation plate (3) and the pressing plate (303) that are close to each other. A spring (304) is compressed and mounted on the end of the movable rods (301) that are close to each other.
2. The highway subgrade compactness testing equipment according to claim 1, characterized in that: The connecting sleeve (101) and the support plate (102) are movably installed through a rotating seat (103), and the compaction table (2) and the connecting rope (203) are fixedly connected through a connecting ring (202).
3. The highway subgrade compactness testing equipment according to claim 1, characterized in that: A swivel disc (208) is fixedly installed on the outer side of the winding reel (207), and a protective cover (206) that cooperates with the first rotating wheel (204) and the second rotating wheel (205) is fixedly installed on the top of the sliding sleeve (1).
4. The highway subgrade compactness testing device of claim 1, wherein: The connecting rope (203) is wound around the outside of the first rotating wheel (204) and the second rotating wheel (205), and the inner side of the compaction table (2) is rotatably equipped with a roller (209) that cooperates with the sliding block (201).
5. The highway subgrade compactness testing device of claim 1, wherein: The movable rod (301) is fitted with a movable sleeve (302) on its outer side, and the movable rod (301) and the movable sleeve (302) are slidably installed together.
6. The highway subgrade compactness testing device of claim 1, wherein: Both the extrusion plate (303) and the mounting plate (3) are provided with movable holes (305) corresponding to the connecting rope (203), and movable grooves (306) corresponding to the sliding block (201) are provided on both sides of the extrusion plate (303).