A roadbed compaction testing device for road engineering testing

Abstract

This invention relates to the field of road engineering testing technology, specifically to a roadbed compaction testing device for road engineering testing. The device includes: a mounting post with an insertion groove on its bottom surface, and a limit block groove and a lifting slide groove on its side; a lifting ring fitted onto the surface of the mounting post, with a limit block on its inner side; a pressure ring positioned above a control ring, with a connecting ring connected to its surface, and a positioning block connected to the surface of the connecting ring. The beneficial effect is that after drilling the foundation, holding the handwheel and pressing the pressure ring simultaneously causes the control ring to move the lifting slide into the first positioning groove. Rotating the drill sleeve disengages the clamping plate from the clamping plate groove, allowing the drill sleeve to be removed. At this point, a tool can be inserted from the top of the inner cylinder to push out the foundation soil layer inside the inner cylinder. This allows for accurate testing of the roadbed compaction and solves the problem that when the drill sleeve is raised, the foundation soil layer easily gets stuck in the inner cylinder, making it difficult to remove and hindering the testing work.

Description

Technical Field

[0001] This invention relates to the field of road engineering testing technology, specifically to a roadbed compaction testing device for road engineering testing. Background Technology

[0002] Road engineering refers to the entire process of planning, designing, constructing, maintaining and managing roads, as well as the engineering entities involved. After the construction of road engineering projects, the compaction degree of the subgrade needs to be tested using a road engineering testing device.

[0003] The invention patent with publication number CN215178743U discloses a roadbed compaction testing device for road engineering testing. Through the arrangement of a base, mounting frame, top plate, screw, moving plate, connecting groove, connecting plate, connecting shaft, connecting disc, drill sleeve, and inner cylinder, when using the drill sleeve to excavate the foundation soil layer, two motors are activated. The second servo motor drives the drill sleeve to rotate via the connecting shaft, and the first servo motor drives the screw to rotate, thereby causing the moving plate to move the connecting plate downwards or upwards. This ensures that the drill sleeve moves smoothly and straight down into the foundation without tilting. After drilling to a certain depth, the drill sleeve is raised, revealing the foundation soil layer inside the inner cylinder, thus facilitating compaction testing. This method prevents tilting during drilling of the foundation soil layer and avoids soil layer fracture.

[0004] However, when the drill sleeve is raised, the foundation soil layer is easily stuck in the inner cylinder, making it difficult to remove the foundation soil layer and causing difficulties for the testing work. Summary of the Invention

[0005] The purpose of this invention is to provide a roadbed compaction testing device for road engineering testing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a roadbed compaction testing device for road engineering testing, the roadbed compaction testing device comprising:

[0007] The base plate has guide posts on its surface, and connecting plates are fitted on the surface of the guide posts. A mounting post is provided below the connecting plate. The bottom surface of the mounting post has an insertion groove, and the side surface of the mounting post has a limit block groove and a lifting slide groove.

[0008] A lifting ring is fitted onto the surface of the mounting column. A limit block is provided on the inner side of the lifting ring. A rotating groove is provided on the surface of the lifting ring. A control ring is provided above the lifting ring. A rotating ring is provided on the surface of the control ring. A lifting slider is provided on the inner wall of the control ring.

[0009] A pressure ring is positioned above the control ring. A connecting ring is attached to the surface of the pressure ring, and a positioning block is attached to the surface of the connecting ring.

[0010] Preferably, a servo motor is fixedly arranged on the surface of the connecting plate. The output shaft of the servo motor passes through the connecting plate and is fixedly connected to the mounting column. A drill sleeve is arranged below the mounting column. An inner cylinder is fixedly arranged inside the drill sleeve. Multiple groups of clamping plates are fixedly arranged at the top end of the side surface of the drill sleeve. The top end of the drill sleeve is inserted into the inside of the insertion slot. Multiple groups of clamping plate slots are opened on the side wall of the insertion slot. The clamping plates are slidably arranged inside the clamping plate slots.

[0011] Preferably, multiple groups of limiting block slots are opened. The multiple groups of limiting block slots correspond to the multiple groups of clamping plate slots one by one, and the limiting block slots penetrate through the bottom surface of the mounting column and the inside of the insertion slot.

[0012] Preferably, multiple groups of lifting sliding grooves are opened. The multiple groups of lifting sliding grooves are distributed in a circumferential array on the side surface of the mounting column. One side of the inner wall of the lifting sliding groove is provided with a first positioning groove and a second positioning groove. The top end of the inner wall of the first positioning groove is provided with a first positioning block groove. The top end of the inner wall of the second positioning groove is provided with a second positioning block groove.

[0013] Preferably, the lifting ring is slidably arranged with the mounting column. A rotating groove is opened on the side of the lifting ring close to the control ring. The rotating groove is an annular groove structure with a cross-section of a "convex" shape.

[0014] Preferably, multiple groups of limiting blocks are provided. The limiting blocks are fixedly connected to the lifting ring. The limiting blocks are slidably arranged inside the limiting block slots.

[0015] Preferably, the control ring is slidably sleeved on the surface of the mounting column. Multiple groups of connecting rods are fixedly installed on the side surface of the control ring. The multiple groups of connecting rods are fixedly connected to the same hand wheel. The hand wheel is fixedly connected to the rotating ring. The rotating ring is arranged on the side of the control ring close to the lifting ring. The rotating ring is a ring-shaped structure with a cross-section of a "convex" shape. The rotating ring is rotatably arranged inside the rotating groove.

[0016] Preferably, the lifting slider and the control ring are of an integral structure. Multiple groups of lifting sliders are provided. The lifting sliders are slidably arranged inside the lifting sliding grooves. A telescopic groove is opened on the surface of the lifting slider. The telescopic groove is a "convex" shaped groove structure. The telescopic groove penetrates through the surface of the lifting slider and the control ring.

[0017] Preferably, the pressing ring is slidably sleeved on the surface of the mounting column. A holding spring is arranged between the pressing ring and the control ring. The holding spring is sleeved on the surface of the connecting ring.

[0018] Preferably, the positioning block is fixedly installed at one end of the connecting ring close to the control ring. The positioning block is a "convex" shaped block structure. The positioning block is slidably inserted into the inside of the telescopic groove.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] This invention proposes a roadbed compaction testing device for road engineering inspection. After drilling the foundation, hold the handwheel and press the pressure ring simultaneously to move the lifting slider from the inside of the second positioning slot to the inside of the lifting chute. Then, pull the control ring with the handwheel to align the lifting slider with the first positioning slot, and rotate the control ring to move the lifting slider into the first positioning slot. Rotate the drill sleeve to disengage the clamping plate from the clamping plate slot, and the drill sleeve can be removed. At this time, insert the tool from the top of the inner cylinder to push out the foundation soil layer inside the inner cylinder. This solves the problem that when the drill sleeve is raised, the foundation soil layer is easily stuck in the inner cylinder, making it difficult to remove the foundation soil layer and causing difficulties in the inspection work. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0023] Figure 3 This is a schematic cross-sectional view of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point B;

[0025] Figure 5 This is a schematic diagram of the mounting column structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the lifting ring structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the control ring structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the drill sleeve structure of the present invention;

[0029] Figure 9 This is a schematic diagram of the pressure ring structure of the present invention.

[0030] In the diagram: Base plate 1, guide post 11, connecting plate 2, mounting post 3, insertion slot 31, limit block slot 32, clamping plate slot 33, lifting slide 34, first positioning slot 35, first positioning block slot 36, second positioning slot 37, second positioning block slot 38, lifting ring 4, rotating slot 41, limit block 42, control ring 5, connecting rod 51, handwheel 52, rotating ring 53, lifting slider 54, telescopic slot 55, pressure ring 6, connecting ring 61, positioning block 62, top holding spring 7, drill sleeve 8, clamping plate 81, inner cylinder 9. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "a," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] For purposes of simplicity and illustration, the principles of the embodiments are described primarily by way of example. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring these embodiments. Furthermore, all embodiments can be used in combination with each other.

[0035] Please see Figures 1-9 The present invention provides a technical solution:

[0036] A roadbed compaction testing device for road engineering testing, characterized in that: the roadbed compaction testing device for road engineering testing comprises:

[0037] A base plate 1 has guide posts 11 on its surface, a connecting plate 2 fitted onto the surface of the guide posts 11, and a mounting post 3 below the connecting plate 2. The bottom surface of the mounting post 3 has an insertion groove 31, and the sides of the mounting post 3 have limit block grooves 32 and lifting slide grooves 34. A servo motor is fixedly mounted on the surface of the connecting plate 2, and the output shaft of the servo motor passes through the connecting plate 2 and is fixedly connected to the mounting post 3. A drill sleeve 8 is located below the mounting post 3, and an inner cylinder 9 is fixedly mounted inside the drill sleeve 8. Multiple sets of retaining plates 81 are fixedly mounted on the top of the side of the drill sleeve 8, and the top of the drill sleeve 8 is inserted into the insertion groove 31. The side wall of 1 has multiple sets of card slots 33, and the card 81 is slidably disposed inside the card slot 33. Multiple sets of limiting block slots 32 are provided, and the multiple sets of limiting block slots 32 correspond one-to-one with the multiple sets of card slots 33. The limiting block slots 32 penetrate through the bottom surface of the mounting column 3 and the interior of the insertion slot 31. Multiple sets of lifting slides 34 are provided, and the multiple sets of lifting slides 34 are distributed in a circumferential array on the side of the mounting column 3. A first positioning slot 35 and a second positioning slot 37 are provided on one side of the inner wall of the lifting slide 34. A first positioning block slot 36 is provided at the top of the inner wall of the first positioning slot 35, and a second positioning block slot 38 is provided at the top of the inner wall of the second positioning slot 37.

[0038] A lifting ring 4 is fitted onto the surface of the mounting column 3. A limit block 42 is provided on the inner side of the lifting ring 4. A rotating groove 41 is formed on the surface of the lifting ring 4. A control ring 5 is positioned above the lifting ring 4. A rotating ring 53 is formed on the surface of the control ring 5. A lifting slider 54 is provided on the inner wall of the control ring 5. The lifting ring 4 is slidably mounted on the mounting column 3. The rotating groove 41 is located on the side of the lifting ring 4 near the control ring 5 and has an annular groove structure with a "convex" cross-section. Multiple sets of limit blocks 42 are provided and are fixedly connected to the lifting ring 4. The limit blocks 42 are slidably mounted inside the limit block groove 32. The control ring 5 is slidably fitted onto the surface of the mounting column 3. Multiple sets of connecting rods 51 are fixedly installed on the side of the control ring 5. The multiple sets of connecting rods 51 are fixedly connected to the same set of handwheels 52. The handwheels 52 are fixedly connected to the rotating ring 53. The rotating ring 53 is located on the side of the control ring 5 near the lifting ring 4. The rotating ring 53 has a ring structure with a "convex" cross-section. The rotating ring 53 is rotatably located inside the rotating groove 41. The lifting slider 54 and the control ring 5 are integral structures. Multiple sets of lifting sliders 54 are provided. The lifting slider 54 is slidably located inside the lifting groove 34. The surface of the lifting slider 54 is provided with a telescopic groove 55. The telescopic groove 55 has a "convex" shaped groove structure. The telescopic groove 55 penetrates the surface of the lifting slider 54 and the control ring 5.

[0039] The pressure ring 6 is arranged above the control ring 5. A connecting ring 61 is connected to the surface of the pressure ring 6. A positioning block 62 is connected to the surface of the connecting ring 61. The pressure ring 6 is slidably sleeved on the surface of the mounting column 3. A holding spring 7 is arranged between the pressure ring 6 and the control ring 5. The holding spring 7 is sleeved on the surface of the connecting ring 61. The positioning block 62 is fixedly installed at one end of the connecting ring 61 close to the control ring 5. The positioning block 62 is in a "convex" block structure. The positioning block 62 is slidably inserted into the inside of the expansion slot 55.

[0040] During use, start the servo motor to drive the drill sleeve 8 to rotate, control the drill sleeve 8 to drill the foundation. When drilling to a certain depth, raise the drill sleeve 8. At this time, the inside of the inner cylinder 9 is the foundation soil layer. Then hold the handwheel 52 and press the pressure ring 6 at the same time, so as to drive the positioning block 62 to disengage from the inside of the second positioning block groove 38 and retract into the inside of the expansion slot 55. Rotate the control ring 5 through the handwheel 52, so that the lifting slider 54 moves from the inside of the second positioning groove 37 to the inside of the lifting chute 34. Then pull the control ring 5 through the handwheel 52, so that the lifting slider 54 is aligned with the first positioning groove 35, and rotate the control ring 5 to make the lifting slider 54 enter the inside of the first positioning groove 35. When the positioning block 62 is aligned with the first positioning block groove 36, release the pressing on the pressure ring 6. The resilience of the holding spring 7 drives the positioning block 62 to be stuck into the inside of the first positioning block groove 36 through the pressure ring 6 and the connecting ring 61. At this time, the lifting ring 4 is lifted by the control ring 5, so that the limiting block 42 slides to the top of the limiting block groove 32, exposing the clamping plate groove 33. Rotate the drill sleeve 8 to disengage the clamping plate 81 from the inside of the clamping plate groove 33, and then the drill sleeve 8 can be removed. At this time, insert the tool into the top of the inner cylinder 9 and push out the foundation soil layer inside the inner cylinder 9.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roadbed compaction testing device for road engineering testing, characterized in that: The roadbed compaction testing device for road engineering testing includes: The base plate (1) has a guide post (11) on its surface. A connecting plate (2) is fitted on the surface of the guide post (11). An installation post (3) is provided below the connecting plate (2). An insertion groove (31) is provided on the bottom surface of the installation post (3). A limit block groove (32) and a lifting slide groove (34) are provided on the side of the installation post (3). A lifting ring (4) is sleeved on the surface of the mounting column (3). A limit block (42) is provided on the inner side of the lifting ring (4). A rotating groove (41) is opened on the surface of the lifting ring (4). A control ring (5) is provided above the lifting ring (4). A rotating ring (53) is provided on the surface of the control ring (5). A lifting slider (54) is provided on the inner wall of the control ring (5). A pressure ring (6) is positioned above the control ring (5). A connecting ring (61) is connected to the surface of the pressure ring (6), and a positioning block (62) is connected to the surface of the connecting ring (61). A servo motor is fixedly mounted on the surface of the connecting plate (2). The output shaft of the servo motor passes through the connecting plate (2) and is fixedly connected to the mounting column (3). A drill sleeve (8) is positioned below the mounting column (3). An inner cylinder (9) is fixedly mounted inside the drill sleeve (8). Multiple sets of clamping plates (81) are fixedly mounted on the top of the side of the drill sleeve (8). The top of the drill sleeve (8) is inserted into the inside of the insertion groove (31). 31) has multiple sets of card slots (33) on its side wall, and the card (81) is slidably disposed inside the card slot (33); the control ring (5) is slidably sleeved on the surface of the mounting column (3), and multiple sets of connecting rods (51) are fixedly installed on the side of the control ring (5). The multiple sets of connecting rods (51) are fixedly connected to the same set of handwheels (52), and the handwheels (52) are fixedly connected to the rotating ring (53). The rotating ring (53) is disposed on the side of the control ring (5) near the lifting ring (4). The rotating ring (53) has a ring structure with a "convex" cross section, and the rotating ring (53) is rotatably disposed inside the rotating groove (41).

2. The roadbed compaction testing device for road engineering testing according to claim 1, characterized in that: The limiting block groove (32) has multiple sets, and the multiple sets of limiting block grooves (32) correspond one-to-one with the multiple sets of card plate grooves (33). The limiting block groove (32) penetrates the bottom surface of the mounting column (3) and the interior of the insertion groove (31).

3. The roadbed compaction testing device for road engineering testing according to claim 2, characterized in that: The lifting slide (34) has multiple sets, and the multiple sets of lifting slides (34) are arranged in a circular array on the side of the mounting column (3). A first positioning groove (35) and a second positioning groove (37) are opened on one side of the inner wall of the lifting slide (34). A first positioning block groove (36) is opened at the top of the inner wall of the first positioning groove (35), and a second positioning block groove (38) is opened at the top of the inner wall of the second positioning groove (37).

4. The roadbed compaction testing device for road engineering testing according to claim 3, characterized in that: The lifting ring (4) is slidably set with the mounting column (3), and the rotating groove (41) is opened on the side of the lifting ring (4) near the control ring (5). The rotating groove (41) is an annular groove structure with a "convex" shaped cross section.

5. A roadbed compaction testing device for road engineering testing according to claim 4, characterized in that: A plurality of the limiting blocks (42) are provided. The limiting blocks (42) are fixedly connected to the lifting ring (4), and the limiting blocks (42) are slidably arranged inside the limiting block grooves (32).

6. The roadbed compaction testing device for road engineering testing according to claim 1, characterized in that: The lifting slider (54) and the control ring (5) are of an integral structure. A plurality of the lifting sliders (54) are provided. The lifting sliders (54) are slidably arranged inside the lifting chutes (34). A telescopic groove (55) is formed on the surface of the lifting slider (54). The telescopic groove (55) is in a "convex"-shaped groove structure and penetrates through the surfaces of the lifting slider (54) and the control ring (5).

7. A roadbed compaction testing device for road engineering testing according to claim 6, characterized in that: The pressing ring (6) is slidably sleeved on the surface of the mounting column (3). A holding spring (7) is arranged between the pressing ring (6) and the control ring (5). The holding spring (7) is sleeved on the surface of the connecting ring (61).

8. A roadbed compaction testing device for road engineering testing according to claim 7, characterized in that: The positioning block (62) is fixedly installed at one end of the connecting ring (61) close to the control ring (5). The positioning block (62) is in a "convex"-shaped block structure and is slidably inserted into the telescopic groove (55).

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