Road compactness test detection device

Abstract

The utility model discloses a road compactness test detection device, which comprises a box body and an impact head, a pressing plate is arranged in the box body, the impact head is fixedly connected to the lower surface of the pressing plate, the left side and the right side of the upper surface of the pressing plate are fixedly connected with telescopic rods, the top ends of the telescopic rods are fixedly connected with the inner top wall of the box body, and the top ends of the telescopic rods are fixedly connected with the inner top wall of the box body. The outer surface of the telescopic rod is sleeved with a first spring, and a pull rod is fixedly connected to the middle of the upper surface of the pressing plate. According to the road compactness test detection device, the counter weight and the movable plate can overcome the restoring force of the second spring under the action of gravity to be in contact with the pressing plate, the movable plate can pull the movable block and the pointer to move rightwards through the steel wire rope in the moving process, and by reading the position of the pointer at the scale mark, the compactness of the road can be detected. Therefore, a worker does not need to frequently bend down for measurement, the labor intensity is reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of highway detection, in particular to a highway compaction test detection device. Background Art

[0002] Compaction is one of the key indicators for roadbed and pavement construction quality inspection. Only by fully compacting the roadbed and pavement structure layers can the strength, stiffness and flatness of the roadbed and pavement be guaranteed, and then the performance and service life of the roadbed and pavement can be guaranteed. Therefore, during the construction of highway roadbed, it is necessary to use a highway compaction test device to test the roadbed.

[0003] The existing highway compaction test detection device lifts the impact head by pulling the pull ring on the top of the box. When the pull ring is released, the impact head impacts the road surface. Then the staff removes the device and measures the depth of the roadbed depression with a ruler. The compaction of the road surface is then calculated by comparing it with the impact force value. Since the roadbed is long and there are many points to be tested, this measurement method requires the staff to bend down frequently to measure the depth of the roadbed depression, which not only increases the labor intensity but also has low detection efficiency. Summary of the invention

[0004] The main purpose of the utility model is to provide a road compaction test detection device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A road compaction test detection device comprises a box body and an impact head, a pressure plate is arranged inside the box body, the impact head is fixedly connected to the lower surface of the pressure plate, telescopic rods are fixedly connected to the left and right sides of the upper surface of the pressure plate, the top end of the telescopic rod is fixedly connected to the inner top wall of the box body, a first spring is sleeved on the outer surface of the telescopic rod, a pull rod is fixedly connected to the middle part of the upper surface of the pressure plate, the top end of the pull rod passes through the upper surface of the box body and is fixedly connected to a pull ring, the upper surface of the box body is fixedly connected to a fixed box, a movable block is arranged inside the fixed box, two guide rods are fixedly connected to the left inner wall of the fixed box, the right end of the guide rod passes through the movable block and is fixedly connected to the right side of the fixed box, the guide rod is slidably connected to the movable block, The outer surface of the guide rod is sleeved with a second spring, the upper surface of the movable block is fixedly connected with a pointer, the upper surface of the fixed box is provided with a scale line corresponding to the pointer, a movable plate is slidably connected above the pressure plate, the upper surface of the movable plate is fixedly connected with a steel wire rope, one end of the steel wire rope is located inside the fixed box and fixedly connected to the movable block. In this way, the counterweight block and the movable plate can overcome the restoring force of the second spring under the action of gravity and contact the pressure plate. During the movement of the movable plate, the movable block and the pointer can be pulled to the right by the steel wire rope. By reading the position of the pointer at the scale line, the depth of the depression of the roadbed can be read, thereby eliminating the need for staff to frequently bend over to measure, which not only reduces labor intensity but also improves detection efficiency.

[0007] A further improvement of the utility model is that two sliding rods are fixedly connected to the right side of the inner bottom wall of the box body, the top ends of the sliding rods pass through the movable plate and are fixedly connected to the inner top wall of the box body, the sliding rods are slidably connected to the movable plate, and a counterweight block is fixedly connected to the lower surface of the movable plate. This arrangement makes the up and down movement of the movable plate more stable, and the counterweight block enables the movable plate to have enough gravity to slide downward.

[0008] A further improvement of the utility model is that one end of the second spring is fixedly connected to the movable block, and the other end of the second spring is fixedly connected to the right inner wall of the fixed box. In this way, the movable block can drive the second spring to move during the movement, and the restoring force of the second spring keeps the wire rope in a taut state at all times.

[0009] A further improvement of the utility model is that a long hole is opened on the upper surface of the fixed box, and the top end of the pointer passes through the long hole and is located outside the fixed box, so that the movable block can drive the pointer to move along the long hole during the movement.

[0010] A further improvement of the utility model is that a guide wheel is installed on the inner bottom wall of the fixed box, and the wire rope is in contact with the outer surface of the guide wheel. The guide wheel is arranged in this way to support the wire rope, reduce the friction between the wire rope and the box body and the fixed box, and better move the wire rope.

[0011] A further improvement of the utility model is that a connecting block is fixedly connected to the right side of the movable plate, the right side of the connecting block passes through the right side of the box and is fixedly connected to a fixing plate, a rectangular hole corresponding to the connecting block is opened on the right side of the box, a limiting screw is threadedly connected to the fixing plate, and a threaded hole corresponding to the limiting screw is opened on the top of the right side of the box. In this way, when the highway roadbed is impacted, the fixing plate is limited by the cooperation of the limiting screw and the threaded hole, so as to avoid the counterweight block always contacting the pressure plate, so that the pressure plate can better drive the impact head to impact downward.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The counterweight block and the movable plate can overcome the restoring force of the second spring under the action of gravity and contact the pressure plate. During the movement of the movable plate, the movable block and the pointer can be pulled to the right by the wire rope. By reading the position of the pointer at the scale line, the depth of the roadbed depression can be read, so that the staff does not need to bend down frequently to measure, which not only reduces the labor intensity but also improves the detection efficiency.

[0014] 2. By setting the guide wheel to support the wire rope, the friction between the wire rope and the box and the fixed box is reduced, so that the wire rope can be moved better. When the limit screw is separated from the threaded hole on the box, the fixed plate, the connecting block and the movable plate can move downward. When impacting the highway roadbed, the fixed plate is limited by the cooperation of the limit screw and the threaded hole to avoid the counterweight block always contacting the pressure plate, so that the pressure plate can better drive the impact head to impact downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the overall structure of a road compaction test detection device.

[0016] Figure 2 The utility model is a schematic diagram of the internal structure of a road compaction test detection device.

[0017] Figure 3 The utility model is a schematic diagram of a front cross-sectional structure of a road compaction test detection device.

[0018] Figure 4 The utility model is a road compaction test detection device Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0019] Figure 5 The utility model is a schematic diagram of a top cross-sectional structure of a fixed box of a road compaction test detection device.

[0020] In the figure: 1. box body; 2. impact head; 3. pressure plate; 4. telescopic rod; 5. first spring; 6. pull rod; 7. pull ring; 8. fixed box; 9. movable block; 10. guide rod; 11. second spring; 12. pointer; 13. scale line; 14. movable plate; 15. wire rope; 101. slide rod; 102. counterweight; 801. long hole; 16. guide wheel; 17. connecting block; 18. fixed plate; 19. rectangular hole; 20. limit screw; 21. threaded hole. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, in the description of the utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "No. 1", "No. 2" and "No. 3" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. The utility model is further explained below in conjunction with specific implementation methods.

[0022] Example 1

[0023] like Figure 1-5As shown, a road compaction test detection device comprises a box body 1 and an impact head 2, a pressing plate 3 is arranged inside the box body 1, the impact head 2 is fixedly connected to the lower surface of the pressing plate 3, telescopic rods 4 are fixedly connected to the left and right sides of the upper surface of the pressing plate 3, the top of the telescopic rod 4 is fixedly connected to the inner top wall of the box body 1, the outer surface of the telescopic rod 4 is sleeved with a first spring 5, a pull rod 6 is fixedly connected to the middle part of the upper surface of the pressing plate 3, the top of the pull rod 6 penetrates the upper surface of the box body 1 and is fixedly connected with a pull ring 7, a fixed box 8 is fixedly connected to the upper surface of the box body 1, a movable block 9 is arranged inside the fixed box 8, two guide rods 10 are fixedly connected to the left inner wall of the fixed box 8, the right end of the guide rod 10 penetrates the movable block 9 and is fixedly connected to the right side of the fixed box 8, the guide rod 10 is slidably connected to the movable block 9, the outer surface of the guide rod 10 is sleeved with a second spring 11, the second spring One end of the spring 11 is fixedly connected to the movable block 9, and the other end of the second spring 11 is fixedly connected to the right inner wall of the fixed box 8. A pointer 12 is fixedly connected to the upper surface of the movable block 9. A long hole 801 is provided on the upper surface of the fixed box 8. The top of the pointer 12 passes through the long hole 801 and is located outside the fixed box 8. A scale line 13 corresponding to the pointer 12 is provided on the upper surface of the fixed box 8. A movable plate 14 is slidably connected above the pressure plate 3. Two sliding rods 101 are fixedly connected to the right side of the inner bottom wall of the box body 1. The top of the sliding rod 101 passes through the movable plate 14 and is fixedly connected to the inner top wall of the box body 1. The sliding rod 101 is slidably connected to the movable plate 14. A counterweight 102 is fixedly connected to the lower surface of the movable plate 14. A steel wire rope 15 is fixedly connected to the upper surface of the movable plate 14. One end of the steel wire rope 15 is located inside the fixed box 8 and is fixedly connected to the movable block 9.

[0024] Through this embodiment, it can be achieved that during inspection, the pull ring 7 is pulled to drive the pull rod 6, the pressure plate 3 and the impact head 2 to move upward. During the movement, the pressure plate 3 can cause the telescopic rod 4 to contract and compress the first spring 5. Then the pull ring 7 is released to allow the impact head 2 to impact the road surface through the restoring force of the first spring 5. The counterweight block 102 and the movable plate 14 can overcome the restoring force of the second spring 11 under the action of gravity and contact the pressure plate 3. During the movement, the movable plate 14 can pull the movable block 9 and the pointer 12 to move to the right through the wire rope 15. By reading the position of the pointer 12 at the scale line 13, the depth of the roadbed depression can be read, thereby eliminating the need for staff to frequently bend over to measure, which not only reduces labor intensity but also improves detection efficiency.

[0025] Example 2

[0026] like Figure 1-5As shown, a road compaction test detection device includes a box body 1 and an impact head 2. A pressing plate 3 is arranged inside the box body 1. The impact head 2 is fixedly connected to the lower surface of the pressing plate 3. Telescopic rods 4 are fixedly connected to the left and right sides of the upper surface of the pressing plate 3. The top of the telescopic rod 4 is fixedly connected to the inner top wall of the box body 1. A first spring 5 is sleeved on the outer surface of the telescopic rod 4. A pull rod 6 is fixedly connected to the middle part of the upper surface of the pressing plate 3. The top of the pull rod 6 passes through the upper surface of the box body 1 and is fixedly connected to a pull ring 7. The upper surface of the box body 1 is fixedly connected to a fixed box 8. The fixed box 8 is provided with a movable block 9 inside, two guide rods 10 are fixedly connected to the left inner wall of the fixed box 8, the right end of the guide rod 10 passes through the movable block 9 and is fixedly connected to the right side of the fixed box 8, the guide rod 10 is slidably connected to the movable block 9, the outer surface of the guide rod 10 is sleeved with a second spring 11, one end of the second spring 11 is fixedly connected to the movable block 9, and the other end of the second spring 11 is fixedly connected to the right inner wall of the fixed box 8, the upper surface of the movable block 9 is fixedly connected with a pointer 12, and the upper surface of the fixed box 8 is provided with a long hole 801, and the pointer 12 The top end passes through the long hole 801 and is located outside the fixed box 8. The upper surface of the fixed box 8 is provided with a scale line 13 corresponding to the pointer 12. A movable plate 14 is slidably connected above the pressure plate 3. Two sliding rods 101 are fixedly connected to the right side of the inner bottom wall of the box body 1. The top end of the sliding rod 101 passes through the movable plate 14 and is fixedly connected to the inner top wall of the box body 1. The sliding rod 101 is slidably connected to the movable plate 14. A counterweight block 102 is fixedly connected to the lower surface of the movable plate 14. A steel wire rope 15 is fixedly connected to the upper surface of the movable plate 14. The steel wire rope 15 is away from the movable plate 14. One end of the plate 14 is located inside the fixed box 8 and is fixedly connected to the movable block 9. A guide wheel 16 is installed on the inner bottom wall of the fixed box 8. The wire rope 15 contacts the outer surface of the guide wheel 16. The right side of the movable plate 14 is fixedly connected to a connecting block 17. The right side of the connecting block 17 passes through the right side of the box body 1 and is fixedly connected to a fixed plate 18. A rectangular hole 19 corresponding to the connecting block 17 is opened on the right side of the box body 1. A limit screw 20 is threadedly connected to the fixed plate 18. A threaded hole 21 corresponding to the limit screw 20 is opened at the top right side of the box body 1.

[0027] Through this embodiment, it can be achieved that: by setting the guide wheel 16 to support the wire rope 15, the friction between the wire rope 15 and the box body 1 and the fixed box 8 is reduced, and the wire rope 15 is better moved; when the limit screw 20 is separated from the threaded hole 21 on the box body 1, the fixed plate 18, the connecting block 17 and the movable plate 14 can move downward, and when the highway roadbed is impacted, the fixed plate 18 is limited by the cooperation of the limit screw 20 and the threaded hole 21, so as to avoid the counterweight block 102 always contacting with the pressure plate 3, so as to better enable the pressure plate 3 to drive the impact head 2 to impact downward.

[0028] It should be noted that the utility model is a road compaction test detection device, which limits the fixed plate 18 by the cooperation of the limit screw 20 and the threaded hole 21 to prevent the counterweight block 102 from contacting the pressure plate 3, so that the impact head 2 can better impact the road. During the inspection, the pull ring 7 is pulled to drive the pull rod 6, the pressure plate 3 and the impact head 2 to move upward. During the movement of the pressure plate 3, the telescopic rod 4 can be contracted and the first spring 5 can be compressed. Then the pull ring 7 is released to make the impact head 2 impact the road surface through the restoring force of the first spring 5, and then the limit screw on the fixed plate 18 is loosened. The screw 20 is separated from the threaded hole 21 on the box body 1. At this time, the fixed plate 18, the connecting block 17 and the movable plate 14 can move downward, and the counterweight block 102 and the movable plate 14 overcome the restoring force of the second spring 11 through the action of gravity and contact the pressure plate 3. During the movement, the movable plate 14 can pull the movable block 9 and the pointer 12 to the right through the wire rope 15. By reading the position of the pointer 12 at the scale line 13, the depth of the roadbed depression can be read, so that the staff does not need to bend down frequently to measure, which not only reduces the labor intensity but also improves the detection efficiency.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A road compaction test device, comprising a housing (1) and an impact head (2), characterized in that: A pressure plate (3) is provided inside the box body (1), the impact head (2) is fixedly connected to the lower surface of the pressure plate (3), the left and right sides of the upper surface of the pressure plate (3) are fixedly connected to telescopic rods (4), the top end of the telescopic rod (4) is fixedly connected to the inner top wall of the box body (1), the outer surface of the telescopic rod (4) is sleeved with a first spring (5), the middle part of the upper surface of the pressure plate (3) is fixedly connected to a pull rod (6), the top end of the pull rod (6) passes through the upper surface of the box body (1) and is fixedly connected to a pull ring (7), the upper surface of the box body (1) is fixedly connected to a fixed box (8), the interior of the fixed box (8) is provided with a movable block (9), and the left inner wall of the fixed box (8) is fixedly connected to Two guide rods (10) are connected, the right end of the guide rod (10) passes through the movable block (9) and is fixedly connected to the right side of the fixed box (8), the guide rod (10) is slidably connected to the movable block (9), the outer surface of the guide rod (10) is sleeved with a second spring (11), the upper surface of the movable block (9) is fixedly connected to a pointer (12), the upper surface of the fixed box (8) is provided with a scale line (13) corresponding to the pointer (12), the upper part of the pressure plate (3) is slidably connected to a movable plate (14), the upper surface of the movable plate (14) is fixedly connected to a steel wire rope (15), one end of the steel wire rope (15) is located inside the fixed box (8) and is fixedly connected to the movable block (9).

2. A road compaction test detection device according to claim 1, characterized in that: Two sliding rods (101) are fixedly connected to the right side of the inner bottom wall of the box body (1), the top ends of the sliding rods (101) pass through the movable plate (14) and are fixedly connected to the inner top wall of the box body (1), the sliding rods (101) are slidably connected to the movable plate (14), and a counterweight block (102) is fixedly connected to the lower surface of the movable plate (14).

3. A road compaction test detection device according to claim 1, characterized in that: One end of the second spring (11) is fixedly connected to the movable block (9), and the other end of the second spring (11) is fixedly connected to the right inner wall of the fixed box (8).

4. A road compaction test detection device according to claim 1, characterized in that: The upper surface of the fixed box (8) is provided with a long hole (801), and the top end of the pointer (12) passes through the long hole (801) and is located outside the fixed box (8).

5. A road compaction test detection device according to claim 1, characterized in that: A guide wheel (16) is installed on the inner bottom wall of the fixed box (8), and the steel wire rope (15) is in contact with the outer surface of the guide wheel (16).

6. A road compaction test detection device according to claim 1, characterized in that: The right side of the movable plate (14) is fixedly connected to a connecting block (17), the right side of the connecting block (17) passes through the right side of the box body (1) and is fixedly connected to a fixing plate (18), the right side of the box body (1) is provided with a rectangular hole (19) corresponding to the connecting block (17), the fixing plate (18) is threadedly connected to a limit screw (20), and the top end of the right side of the box body (1) is provided with a threaded hole (21) corresponding to the limit screw (20).

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