Highway pavement quality detector

Abstract

The utility model discloses a highway pavement quality detector which comprises a support, the support is in a rectangular frame shape, supporting columns are installed at the four corners of the top of the support respectively, the supporting columns are hollow and communicated with grooves formed in the bottom of the support, and supporting wheels are arranged in the grooves in a sliding mode. The top of the supporting wheel penetrates into the supporting column and is in sliding connection with the inner wall of the supporting column, sliding columns are symmetrically installed on the left side and the right side of the top of the support, a lifting table is arranged between the two sliding columns and connected with the sliding columns through first connecting rods, and a motor and a sampling barrel driven by the motor to rotate are installed on the lifting table. By arranging the supporting columns, the supporting wheels and the grooves, after the device is moved to the sampling position, the supporting wheels are retracted into the grooves, the supports make contact with the ground, the device is not prone to moving during sampling operation, and after sampling is completed, the supporting wheels slide from the grooves, so that moving is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of road surface quality detection, in particular to a highway road surface quality detection instrument. Background Art

[0002] In road traffic, the quality of the road surface is directly related to the safety, wear, comfort and other aspects of vehicle driving. Asphalt concrete is a commonly used road surface material. Good compaction can ensure the density and uniformity of asphalt concrete, thereby improving the bearing capacity and durability of the road. In the prior art, the compaction of asphalt concrete on the road surface is generally detected by core sampling. The detection instrument is generally heavy. In order to facilitate its movement, the utility model proposes a highway road surface quality detection instrument. Summary of the invention

[0003] The purpose of the utility model is to provide a highway pavement quality detector to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme, a highway pavement quality detector, including a bracket, characterized in that: the bracket is in the shape of a rectangular frame, and support columns are respectively installed on the four corners of its top, the support columns are hollow inside and connected to a groove opened at the bottom of the bracket, a support wheel is slidably arranged in the groove, the top of the support wheel penetrates into the support column and is slidably connected to the inner wall of the support column, and a sliding column is symmetrically installed on the left and right sides of the top of the bracket, a lifting platform is arranged between the two sliding columns, the lifting platform and the sliding column are connected by a first connecting rod, a motor and a sampling tube driven to rotate by the motor are installed on the lifting platform, an adjusting column is installed on the rear side of the top of the bracket, a sliding groove is opened on the side of the adjusting column facing the lifting platform, a screw rod is rotatably arranged in the sliding groove, the screw and the lifting platform are connected by a second connecting rod, one end of the second connecting rod is slidably connected to the sliding groove and is penetrated by the screw rod and screwed to the screw, and the other end of the second connecting rod is fixedly connected to the lifting platform.

[0005] Preferably, a pull rod is slidably provided on the side wall of the support column, a slot for the pull rod to be inserted into is opened on the top of the support wheel, a spring is provided on the side wall of the support column, one end of the spring is installed on the side wall of the support column, and the other end is installed on the pull rod.

[0006] Preferably, the sampling barrel is in the shape of a hollow tube, the top of the sampling barrel is rotatably connected to the lifting platform, the motor is installed on the top of the lifting platform, the output end of the motor is connected to a transmission shaft, and the transmission shaft is fixedly connected to the inner wall of the sampling barrel through a connecting rod.

[0007] Preferably, a water pump is installed on the top of the lifting platform, and the input and output ends of the water pump are respectively connected to the water inlet pipe and the water outlet pipe, the water inlet pipe can be connected to the external water tank, and the water outlet pipe penetrates the lifting platform and is connected to the top opening of the material taking barrel.

[0008] Preferably, one end of the first connecting rod is fixedly connected to the lifting platform, and the other end is slidably connected to the sliding column.

[0009] Preferably, a water dividing plate is installed inside the sampling tube for guiding water to flow toward the inner wall of the sampling tube.

[0010] Compared with the prior art, the beneficial effects of the utility model are: by setting support columns, support wheels and grooves, after the device is moved to the sampling position, the support wheels are retracted into the grooves, so that the bracket contacts the ground, and the device is not easy to move during the sampling operation. After the sampling is completed, the support wheels are slid out of the grooves for easy movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a front sectional view of the utility model;

[0012] Figure 2 It is a top view of the utility model and a cross-sectional view of the adjustment column.

[0013] In the figure: 1 bracket, 11 groove, 2 support column, 21 pull rod, 22 spring, 3 support wheel, 31 slot, 4 slide column, 41 first connecting rod, 5 lifting platform, 6 adjustment column, 61 slide groove, 62 screw rod, 63 second connecting rod, 7 motor, 71 transmission shaft, 8 water pump, 81 water inlet pipe, 82 water outlet pipe, 9 sampling tube, 91 water distribution plate. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] Referring to Figure (1-2), a highway pavement quality detector includes a bracket 1, characterized in that: the bracket 1 is in the shape of a rectangular frame, and support columns 2 are respectively installed on the four corners of the top thereof, the support column 2 is hollow inside and communicates with a groove 11 opened at the bottom of the bracket 1, a support wheel 3 is slidably arranged in the groove 11, the top of the support wheel 3 penetrates into the support column 2 and is slidably connected to the inner wall of the support column 2, sliding columns 4 are symmetrically installed on the left and right sides of the top of the bracket 1, a lifting platform 5 is arranged between the two sliding columns 4, and the lifting platform 5 is connected to the sliding column 2. The columns 4 are connected by a first connecting rod 41, a motor 7 and a sampling tube 9 driven to rotate by the motor are installed on the lifting platform 5, an adjusting column 6 is installed on the rear side of the top of the bracket 1, a slide groove 61 is provided on the side of the adjusting column 6 facing the lifting platform 5, a screw rod 62 is rotatably arranged in the slide groove 61, the screw rod 62 and the lifting platform 5 are connected by a second connecting rod 63, one end of the second connecting rod 63 is slidably connected to the slide groove 61 and is penetrated by the screw rod 62 and screwed to the screw 62, and the other end of the second connecting rod 63 is fixedly connected to the lifting platform 5.

[0016] A pull rod 21 is slidably provided on the side wall of the support column 2, a slot 31 is provided on the top of the support wheel 3 for the pull rod 21 to be inserted into, a spring 22 is provided on the side wall of the support column 2, one end of the spring 22 is mounted on the side wall of the support column 2, and the other end is mounted on the pull rod 21. The sampling barrel 9 is a hollow tube, the top of the sampling barrel 9 is rotatably connected to the lifting platform 5, the motor 7 is mounted on the top of the lifting platform 5, the output end of the motor 7 is connected to a transmission shaft 71, and the transmission shaft 71 is fixedly connected to the inner wall of the sampling barrel 9 through a connecting rod.

[0017] A water pump 8 is installed on the top of the lifting platform 5. The input and output ends of the water pump 8 are respectively connected to a water inlet pipe 81 and a water outlet pipe 82. The water inlet pipe 81 can be connected to an external water tank, and the water outlet pipe 82 penetrates the lifting platform 5 and is connected to the top opening of the material taking barrel 9. One end of the first connecting rod 41 is fixedly connected to the lifting platform 5, and the other end is slidably connected to the sliding column 4. A water dividing plate 91 is installed inside the sampling barrel 9 for guiding water to flow toward the inner wall of the sampling barrel 9.

[0018] When the device is in use, the device is pushed to the sampling location, the pull rod 21 is pulled to make the pull rod 21 leave the card slot 31, the top of the support wheel 3 loses the restriction of the pull rod 21, the bracket 1 and the support column 2 move downward under the action of their own gravity, and the support wheel 3 and the support column 2 slide relative to each other, so that the support wheel 3 slides into the groove 11 and the bottom of the bracket 1 directly contacts the ground. At this time, the screw 62 is rotated to drive the second connecting rod 63 to move downward along the direction of the slide slot 61, and the lifting platform 5 moves downward accordingly. At this time, the motor 7 is started to drive the sampling tube 9 to rotate, and the water pump 8 is started to pump the water connected to the water inlet pipe 81. The water in the box is pumped into the sampling tube 9 through the outlet pipe 82. When passing through the water dividing plate 91, the water flows around the water dividing plate, so that the water flows to the inner wall of the sampling tube 9. The sampling tube 9 contacts the ground and rotates to cut the ground while following the downward displacement of the lifting platform 5. After the cutting is completed, the sampling tube moves upward, and then the device is lifted upward, so that the support wheel moves downward under the action of its own gravity. In the process of displacement, when the slot passes the pull rod position, the pull rod is pushed into the slot under the action of the spring to fix the position of the support wheel. At this time, the support wheel contacts the ground, which facilitates the movement of the pushing device.

[0019] The orientations or positional relationships shown in the drawings are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A road surface quality detector, comprising a bracket (1), characterized in that: The support (1) is in the shape of a rectangular frame, and support columns (2) are respectively installed at the four corners of the top thereof; the support column (2) is hollow inside and communicates with a groove (11) provided at the bottom of the support (1); a support wheel (3) is slidably arranged in the groove (11); the top of the support wheel (3) penetrates into the support column (2) and is slidably connected to the inner wall of the support column (2); sliding columns (4) are symmetrically installed on the left and right sides of the top of the support (1); a lifting platform (5) is arranged between the two sliding columns (4); the lifting platform (5) is connected to the sliding column (4) through a first connecting rod (41); the lifting platform (5) is connected to the sliding column (4) through a first connecting rod (41); A motor (7) and a sampling tube (9) driven to rotate by the motor are installed on the platform (5), and an adjusting column (6) is installed on the rear side of the top of the bracket (1). A sliding groove (61) is provided on the side of the adjusting column (6) facing the lifting platform (5), and a screw rod (62) is rotatably arranged in the sliding groove (61). The screw rod (62) and the lifting platform (5) are connected via a second connecting rod (63), one end of the second connecting rod (63) is slidably connected to the sliding groove (61) and is penetrated by the screw rod (62) and is screwed to the screw rod (62), and the other end of the second connecting rod (63) is fixedly connected to the lifting platform (5).

2. A road surface quality detector according to claim 1, characterized in that: A pull rod (21) is slidably arranged on the side wall of the support column (2); a slot (31) for the pull rod (21) to be inserted is provided on the top of the support wheel (3); a spring (22) is arranged on the side wall of the support column (2); one end of the spring (22) is mounted on the side wall of the support column (2) and the other end is mounted on the pull rod (21).

3. A road surface quality detector according to claim 1, characterized in that: The sampling tube (9) is in the shape of a hollow tube. The top of the sampling tube (9) is rotatably connected to the lifting platform (5). The motor (7) is installed on the top of the lifting platform (5). The output end of the motor (7) is connected to a transmission shaft (71). The transmission shaft (71) is fixedly connected to the inner wall of the sampling tube (9) via a connecting rod.

4. A road surface quality detector according to claim 1, characterized in that: A water pump (8) is installed on the top of the lifting platform (5). The input and output ends of the water pump (8) are respectively connected to a water inlet pipe (81) and a water outlet pipe (82). The water inlet pipe (81) can be connected to an external water tank. The water outlet pipe (82) penetrates into the lifting platform (5) and is connected to the top opening of the sampling tube (9).

5. A road surface quality detector according to claim 1, characterized in that: One end of the first connecting rod (41) is fixedly connected to the lifting platform (5), and the other end is slidably connected to the sliding column (4).

6. A road surface quality detector according to claim 1, characterized in that: A water dividing plate (91) is installed inside the sampling tube (9) and is used to guide water to flow towards the inner wall of the sampling tube (9).

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