Portable drop weight deflectometer main body calibration system

Abstract

The utility model relates to the technical field of calibration systems, and discloses a portable drop weight deflectometer main body calibration system, which comprises a lower support frame, the top of the lower support frame is adjustably connected with an upper support frame, the side edge of the upper support frame is rotatably connected with a support plate, and the support plate is rotatably connected with the lower support frame. A calibration attaching block is slidably inserted into the side, away from the upper supporting frame, of the supporting plate, a connecting supporting arm is fixed to the bottom of the supporting plate, a laser transmitter is arranged on the bottom face, close to the end of the upper supporting frame, of the bottom of the connecting supporting arm, and a receiver is arranged on the top face, below the laser transmitter, of the lower supporting frame. According to the utility model, the perpendicularity of the falling weight deflectometer main body is detected through the perpendicularity after the laser transmitter is attached to the falling weight deflectometer main body so as to facilitate subsequent calibration, the structure is simple, the operation is convenient, the problem that the existing falling weight deflectometer main body calibration system is inconvenient to carry and operate during use is solved, and the calibration accuracy of the falling weight deflectometer main body is improved. And the portability of the drop weight deflectometer main body calibration system in use is improved.

Description

TECHNICAL FIELD

[0001] The utility model application relates to calibration system technical field, specifically is a portable drop hammer type deflection meter main body calibration system. BACKGROUND

[0002] The drop hammer type deflection meter is a kind of impulse power deflection meter, when running, the weight of a certain quality is lifted to a certain height by hydraulic transmission device and freely falls, impact force is applied to bearing plate and is transmitted to road surface, and the deformation of road surface surface is detected by sensor distribution at different distances from measuring point, and the test data recorded can be used to inverse calculate road structure layer modulus, so as to scientifically evaluate the bearing capacity of road, with the advantages of no damage, fast speed, high precision, and simulating the action of driving load, and the detection result is deflection basin data, mainly used in road maintenance management.

[0003] The drop hammer type deflection meter can be deformed after being used for a period of time, and the detection accuracy is affected, so it needs to be calibrated, and the traditional calibration structure is more cumbersome, is inconvenient to carry and install and calibrate when being used, so that the calibration device is very inconvenient to use. SUMMARY

[0004] In order to solve the problem that the existing drop hammer type deflection meter main body calibration system is inconvenient to carry and operate when being used, the utility model provides a portable drop hammer type deflection meter main body calibration system to solve the above problems.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of portable drop hammer type deflection meter main body calibration system, including lower support frame, the lower support frame top adjustablely connected with upper support frame, the upper support frame side is rotatably connected with support plate, the side of the support plate away from upper support frame is slidably inserted with calibration sticker, the support plate bottom is fixed with connecting branch, the bottom surface of the connecting branch bottom close to upper support frame end is provided with laser emitter, the lower support frame top surface below laser emitter is provided with receiver, the upper support frame top surface color is provided with bubble level.

[0007] Further, the lower support frame is provided as L type, the lower support frame bottom surface four corners are all fixed with leg screw rod, each leg screw rod is all threadedly provided with leg sleeve.

[0008] Further, the upper support frame is provided as inverted L type, the two bubble levels of the upper support frame top surface are perpendicular to each other, and the laser emitter is located at the same center directly above the receiver.

[0009] Further, the upper support frame bottom is symmetrically fixed with a moving screw rod near one side of the lower support frame, the moving screw rod is slidably inserted into an adjusting groove in the upper part of the lower support frame, the moving screw rod penetrates to the outside of the adjusting groove, and a nut one is threadedly sleeved on the moving screw rod of the side edge of the lower support frame.

[0010] Further, the support plate is fixed with a rotating sleeve block near one side of the upper support frame, a support screw rod is rotatably sleeved in the rotating sleeve block, both ends of the support screw rod are fixed on the inner wall of the upper support frame, and a nut two is threadedly sleeved on the support screw rod of the side edge of the rotating sleeve block.

[0011] Further, the calibration patch is fixed with an insertion strip on both sides, the two insertion strips are slidably inserted into the fixed sleeves, and the two fixed sleeves are fixed on the side of the support plate.

[0012] Further, the two fixed sleeves are both provided with clamping grooves matched with the insertion strips, and the heights of the insertion strips and the clamping grooves are smaller than the height of the fixed sleeve.

[0013] Compared with the prior art, the calibration system has the advantages that:

[0014] 1、In the calibration system, the verticality of the laser emitter after being attached to the drop hammer type deflection instrument body is detected to calibrate the verticality of the drop hammer type deflection instrument body, so that the subsequent calibration is convenient, the structure is simple, the carrying and operation inconvenience of the existing drop hammer type deflection instrument body calibration system in use is solved, and the portability of the drop hammer type deflection instrument body calibration system in use is improved.

[0015] 2、In the calibration system, the connecting branch can be protected after detection and calibration through the fixed design of the connecting branch, the adjustable supporting legs at the bottom can keep the upper support frame horizontal during calibration, and the height of the calibration patch can be adjusted according to the calibration height of the drop hammer type deflection instrument body. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0017] Figure 1 is a calibration system three-dimensional structure schematic view according to an embodiment of the present application;

[0018] Figure 2 is Figure 1 the calibration system preparation structure front view schematic view in the embodiment shown in the figure;

[0019] Figure 3 is Figure 1 is a bottom view schematic diagram of the structure when the calibration system is prepared in the embodiment shown in the figure;

[0020] Figure 4 is Figure 1 is a front view schematic diagram of the split structure of the calibration system in the embodiment shown in the figure.

[0021] The meanings of the reference numerals in the figure: 1, lower support frame; 2, upper support frame; 3, support plate; 4, connecting arm; 5, calibration sticker; 6, laser emitter; 7, receiver; 8, bubble level; 9, foot screw; 10, foot sleeve; 11, adjusting groove; 12, moving screw; 13, nut one; 14, insertion strip; 15, fixed sleeve; 16, rotating sleeve block; 17, support screw; 18, nut two. DETAILED DESCRIPTION

[0022] In order to make the application purposes, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0023] With reference to Figure 1 , Figure 2 and Figure 4 , a portable drop hammer type deflection meter main calibration system comprises a lower support frame 1, the lower support frame 1 is arranged in an L shape, four foot screws 9 are fixed at the four corners of the bottom surface of the lower support frame 1, a foot sleeve 10 is threadedly sleeved on each foot screw 9, an upper support frame 2 is adjustably connected to the top of the lower support frame 1, the upper support frame 2 is arranged in an inverted L shape, two bubble levels 8 on the top surface of the upper support frame 2 are perpendicular to each other, a laser emitter 6 is located at the same center directly above a receiver 7, a support plate 3 is rotatably connected to the side edge of the upper support frame 2, a calibration sticker 5 is slidingly inserted on the side of the support plate 3 away from the upper support frame 2, insertion strips 14 are fixed on both sides of the calibration sticker 5, the two insertion strips 14 are slidingly inserted in fixed sleeves 15, the two fixed sleeves 15 are fixed on the side of the support plate 3, a clamping groove matched with the insertion strips 14 is formed in the inside of each fixed sleeve 15, the heights of the insertion strips 14 and the clamping groove are less than the height of the fixed sleeve 15, a connecting arm 4 is fixed on the bottom of the support plate 3, a laser emitter 6 is arranged on the bottom surface of the bottom end of the connecting arm 4 close to the upper support frame 2, a receiver 7 is arranged on the top surface of the upper support frame 2, and a bubble level 8 is arranged on the top surface of the upper support frame 2.

[0024] Specifically, when calibration is needed, the lower support frame 1 is placed on the side of the falling weight deflectometer body, and the levelness of the upper support frame 2 is adjusted according to the bubble level 8. When adjusting, the foot sleeve 10 of the bottom plate is screwed to move the foot sleeve 10 on the foot screw 9, so that the top of the upper support frame 2 remains horizontal. The calibration sticker 5 corresponding to the size of the falling weight deflectometer body is inserted into the side of the support plate 3. When inserting, the insertion strip 14 is inserted into the inside of the fixed sleeve 15. After insertion is completed, the lower support frame 1 is pushed so that the calibration sticker 5 is attached to the falling weight deflectometer body. After attachment, when the falling weight deflectometer body is inclined, the connecting arm 4 is pushed to rotate, so that the laser emitter 6 cannot be aligned with the center of the receiver 7. Adjust the falling weight deflectometer body until the center of the laser emitter 6 is aligned with the center of the receiver 7, and the calibration is completed.

[0025] As an optimization scheme, as shown in Figure 3 and Figure 4 The bottom of the upper support frame 2 is symmetrically fixed with a moving screw 12 near one side of the lower support frame 1. The moving screw 12 is slidingly inserted into the adjusting groove 11 on the upper part of the lower support frame 1. The moving screw 12 penetrates to the outside of the adjusting groove 11. The moving screw 12 on the side of the lower support frame 1 is threadedly sleeved with a nut 13. The support plate 3 is fixed with a rotating sleeve block 16 near one side of the upper support frame 2. The rotating sleeve block 16 is rotatably sleeved with a support screw 17 inside. The ends of the support screw 17 are fixed on the inner wall of the upper support frame 2. The support screw 17 on the side of the rotating sleeve block 16 is threadedly sleeved with a nut 18.

[0026] Specifically, when the height of the calibration sticker 5 needs to be adjusted, the nut 13 is screwed to release the clamping and fixing of the lower support frame 1. The height of the calibration sticker 5 can be adjusted by pulling the upper support frame 2, which drives the moving screw 12 to slide in the adjusting groove 11. After adjustment is completed, the nut 13 is screwed to clamp and fix the upper support frame 2 and the lower support frame 1 again. When detection is needed, the nut 18 is screwed to release the clamping and fixing of the rotating sleeve block 16, so that the support plate 3 and the connecting arm 4 can rotate after calibration. After calibration is completed, the nut 18 is screwed to clamp and fix the rotating sleeve block 16 again.

[0027] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0028] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those ordinarily skilled in the art should understand: the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A portable falling weight deflectometer body calibration system, characterized by: The application relates to a supporting device, which comprises a lower supporting frame (1), an upper supporting frame (2) adjustably connected to the top of the lower supporting frame (1), a supporting plate (3) rotatably connected to the side edge of the upper supporting frame (2), a calibration sticker (5) slidingly inserted into the side of the supporting plate (3) away from the upper supporting frame (2), a connecting arm (4) fixed to the bottom of the supporting plate (3), a laser emitter (6) arranged on the bottom surface of the end of the connecting arm (4) close to the upper supporting frame (2), a receiver (7) arranged on the top surface of the lower supporting frame (1) below the laser emitter (6), and a bubble level (8) arranged on the top surface of the upper supporting frame (2).

2. The portable drop hammer type deflectometer body calibration system of claim 1, wherein: The lower supporting frame (1) is L-shaped, and a supporting screw (9) is fixed to each of the four corners of the bottom surface of the lower supporting frame (1).

3. The portable drop hammer type deflectometer body calibration system of claim 1, wherein: The upper supporting frame (2) is inverted L-shaped, the two bubble levels (8) on the top surface of the upper supporting frame (2) are perpendicular to each other, and the laser emitter (6) is located at the same center vertically above the receiver (7).

4. The portable drop hammer type deflectometer body calibration system of claim 1, wherein: A moving screw (12) is symmetrically fixed to the side of the bottom of the upper supporting frame (2) close to the lower supporting frame (1), the moving screw (12) is slidingly inserted into an adjusting groove (11) arranged on the upper part of the lower supporting frame (1), the moving screw (12) penetrates to the outside of the adjusting groove (11), and a nut (13) is threadedly sleeved on the moving screw (12) on the side of the lower supporting frame (1).

5. The portable drop hammer type deflectometer body calibration system of claim 1, wherein: A rotating sleeve block (16) is fixed to the side of the supporting plate (3) close to the upper supporting frame (2), a supporting screw (17) is rotatably sleeved in the rotating sleeve block (16), the two ends of the supporting screw (17) are fixed to the inner wall of the upper supporting frame (2), and a nut (18) is threadedly sleeved on the supporting screw (17) on the side of the rotating sleeve block (16).

6. The portable drop hammer type deflectometer body calibration system of claim 1, wherein: A inserting strip (14) is fixed to each side of the calibration sticker (5), the two inserting strips (14) are slidingly inserted into a fixed sleeve (15), and the two fixed sleeves (15) are fixed to the side of the supporting plate (3).

7. The portable drop hammer type deflectometer body calibration system of claim 6, wherein: The two fixed sleeves (15) are provided with clamping grooves matched with the inserting strips (14), and the heights of the inserting strips (14) and the clamping grooves are smaller than the height of the fixed sleeve (15).

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