Beckman beam deflectometer convenient to adjust and collect data

Abstract

The utility model discloses a Beckman beam deflectometer convenient for adjustment and data acquisition, which belongs to the technical field of building construction, and comprises a base, a lever assembly is fixedly arranged on the base, an electronic thermometer is fixedly arranged at one end of the lever assembly, an extension rod is fixedly arranged at the top of the other end of the lever assembly, and the extension rod is fixedly connected with the electronic thermometer. The top of the extension rod is in movable contact with a dial indicator above the extension rod, the dial indicator moves up and down above the extension rod through a lifting rod, the bottom end of the lifting rod is fixedly arranged in a support, and the support is fixedly connected with the base through a connecting plate. Due to the fixed connection between the base and the support, the distance between the dial indicator and the extension rod basically remains unchanged after the Beckman beam is moved to the next measuring point when the topographic change of the front measuring point and the rear measuring point is not large, so that adjustment is not needed, data can be directly read, and the measuring process is greatly facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a Beckmann beam deflection instrument which is convenient for adjustment and data collection. Background Art

[0002] The Beckmann beam deflectometer is a widely used instrument in the field of civil engineering. It is mainly used to measure the deflection of structures such as roadbeds and pavements to evaluate their bearing capacity and service life. The technical background of the Beckmann beam deflectometer is derived from the Beckmann beam principle, which is to calculate the deflection value of a structure by measuring the deformation of the structure under load.

[0003] The measurement principle of the Beckman beam deflectometer is to place a standard beam of a certain length on the surface of the structure, apply a load at one end of the beam, and let the other end hang freely. Under the load, the surface of the structure will deform, causing the standard beam to bend. By measuring the bending deformation of the standard beam, the deflection value of the structure can be calculated.

[0004] The application range of Beckmann beam deflectometer is very wide. It can be used for the detection and evaluation of various civil engineering structures such as roadbed, pavement, bridges, tunnels, etc. By measuring the deflection value of the structure, its bearing capacity and service life can be understood, providing an important reference for structural design, construction and maintenance. At the same time, Beckmann beam deflectometer can also be used in the research and development of civil engineering materials to evaluate the performance and applicability of new materials.

[0005] The currently designed Beckman beam deflection instrument requires the micrometer to be readjusted every time it is measured, and the adjustment method is also relatively cumbersome. At the same time, the measuring instrument is an assembled structure, and when changing the measuring point, it is necessary to move the components back and forth for adjustment. Utility Model Content

[0006] In order to solve the technical problems existing in the prior art, the utility model provides a Beckman beam deflection instrument which is easy to adjust and collect data, so as to solve the defects existing in the above-mentioned prior art.

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0008] A Beckman beam deflection instrument which is convenient for adjustment and data collection comprises a base, a lever assembly is fixedly arranged on the base, an electronic thermometer is fixedly arranged on one end of the lever assembly, an extension rod is fixedly arranged on the top of the other end of the lever assembly, the top of the extension rod is in active contact with a dial gauge above it, the dial gauge moves up and down above the extension rod via a lifting rod, the bottom end of the lifting rod is fixedly arranged in a bracket, and the bracket is fixedly connected to the base via a connecting plate.

[0009] According to a further technical solution, the base comprises a support plate, a first vertical plate and a second vertical plate opposite to each other are fixedly arranged on the top of the support plate, and first leveling devices are provided at both ends of the support plate.

[0010] According to a further technical solution, a support column is fixed between the first vertical plate and the second vertical plate.

[0011] According to a further technical solution, a lever assembly is placed on the support column, and the lever assembly is locked and fixed inwardly by a first vertical plate and a second vertical plate.

[0012] According to a further technical solution, a fixing rod is fixedly provided on the outer side of one end of the lever assembly, and an electronic thermometer is fixed on the fixing rod.

[0013] According to a further technical solution, the lifting rod is in an inverted L-shaped structure, a micrometer is fixedly provided at one end of the lifting rod, and the other end is arranged in a lifting slot in the bracket.

[0014] According to a further technical solution, the bracket is arranged beside one side of the lever assembly close to the extension rod.

[0015] According to a further technical solution, the bracket includes an upper horizontal plate, and side plates are fixedly connected to both sides of the upper horizontal plate to form a door-shaped structure, and the bottoms of the side plates on both sides are fixed to the bottom plate respectively.

[0016] According to a further technical solution, a second leveling device is provided on both sides of the bottom plate.

[0017] According to a further technical solution, one end of the connecting plate is fixed on the base, and the other end is fixed on the bracket.

[0018] Beneficial effects of the utility model:

[0019] The utility model makes the whole device an integrated device through the connection between the base and the bracket. When changing the measuring point, there is no need to move the bracket back and forth for adjustment. And through this fixed connection, the bottom of the micrometer and the upper part of the extension rod have been calibrated in the horizontal direction, and only the vertical direction needs to be adjusted during adjustment. Due to the fixed connection between the base and the bracket, when the terrain of the front and rear measuring points does not change much, after the Beckman beam is moved to the next measuring point, the distance between the micrometer and the extension rod remains basically unchanged, so there is no need to adjust, and the data can be read directly, which greatly facilitates the measurement process.

[0020] The utility model provides a cross bar at the bottom of the lifting rod, which is located in the lifting groove together with the lifting rod, and can restrict the horizontal movement of the micrometer to prevent deflection during the measurement process.

[0021] The utility model can adjust the micrometer by moving it up and down through the distance adjustment knob arranged on the bracket. Compared with the adjustment of the micrometer in the traditional Beckmann beam, this adjustment method saves a lot of processes and has higher convenience.

[0022] The utility model can realize automatic temperature measurement by arranging the electronic thermometer at the front end of the lever assembly, thereby eliminating the process of manual temperature measurement and making the measurement process more convenient.

[0023] The utility model can adjust the level of the entire Beckmann beam by means of the leveling devices arranged on the base and the side of the bracket, so that the Beckmann beam can be used for measurement in different terrains. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0025] Figure 1 This is a schematic diagram of the overall assembly of the Beckmann beam deflection instrument of the utility model;

[0026] Figure 2 This is a schematic diagram of the base structure of the utility model;

[0027] Figure 3 This is a schematic diagram of an electronic thermometer of the utility model;

[0028] Figure 4 This is a schematic diagram of the support structure of the utility model;

[0029] Figure 5 This is a schematic diagram of the internal structure of the lifting device of the utility model;

[0030] Figure 6 It is a schematic diagram of the internal structure of the lifting tank of the utility model.

[0031] Among them, 1-base, 101-first vertical plate, 102-second vertical plate, 103-support plate, 104-first threaded hole, 105-second threaded hole, 106-first leveling device, 2-lever assembly, 3-electronic thermometer, 301-display screen, 302-adjustment button, 303-temperature sensing contact, 304 support rod, 4-extension rod, 5-micrometer, 6-lifting rod, 601-lifting slot, 602-cross bar, 7-bracket, 701-adjusting knob, 702-upper cross plate, 703-side plate, 705-third threaded hole, 706-swivel hole, 707-second leveling device, 708-bearing, 709-first gear, 710-second gear, 711-bottom plate, 712-accommodation hole, 8-connecting plate. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0033] See also Figure 1 As shown, an embodiment of the utility model provides a Beckman beam deflection instrument which is easy to adjust and collect data, including a base 1, on which a lever assembly 2 is fixedly provided, one end of the lever assembly 2 is fixedly provided with an electronic thermometer 3, and the top of the other end of the lever assembly 2 is fixedly provided with an extension rod 4, the top of the extension rod 4 is in movably contact with a micrometer 5 above it, and the micrometer 5 moves up and down above the extension rod 4 through a lifting rod 6, and the bottom end of the lifting rod 6 is fixedly provided in a bracket 7, and the bracket 7 is fixedly connected to the base 1 through a connecting plate 8.

[0034] In this embodiment, if Figure 2 As shown, the base 1 includes a support plate 103, on the top of which a first vertical plate 101 and a second vertical plate 102 are fixedly arranged opposite to each other, the first vertical plate 101 and the second vertical plate 102 are spaced a certain distance apart, and a support column is horizontally fixed between the two and at a certain distance from the top of the two, for supporting the lever assembly 2, so that the lever assembly is away from the ground, to avoid the friction and resistance generated by the contact with the ground affecting the accuracy of the test.

[0035] The first vertical plate 101 and the second vertical plate 102 are provided with first screw holes 104 on the upper side, and the first screw holes on the two are symmetrical, and the lever assembly 2 is fixed after the screws are inserted and tightened; the first vertical plate 101 and the second vertical plate 102 are also provided with a plurality of second screw holes 105 on the lower ends, and the second screw holes 105 on the two correspond to each other in number and position, and correspond to the connection holes opened at one end of the connecting plate 8 close to the base 1, and the connecting plates 8 on both sides of the base can be fixed to the two outer sides of the first vertical plate 101 and the second vertical plate 102 respectively after the screws are inserted and tightened. In other words, a certain position of the lever assembly can be fixed between the vertical plates by inserting screws into the first screw holes on the vertical plates on both sides, and the lever assembly is supported by the support column, and the connecting plates can be fixed to the outer sides of the vertical plates by inserting and tightening screws on the connecting plates on both sides of the vertical plates.

[0036] The bottom ends of the support plate 103 are respectively provided with screw holes, and the screw holes are movably provided with a first leveling device 106. The first leveling device 106 is used to achieve leveling of the entire instrument to adapt to different ground conditions and improve the accuracy and reliability of the test results.

[0037] like Figure 2As shown, the first leveling device includes a leveling knob, a leveling screw is fixed at the bottom of the leveling knob, and the leveling screw is fixed on the leveling base. The leveling screw can be driven to rise and fall by rotating the leveling knob. The leveling screw passes through the screw hole of the support plate 103. When the base 1 is uneven, the base 1 is adjusted to a horizontal level by rotating the first leveling device 106 on both sides of the base.

[0038] Preferably, the first vertical plate and the second vertical plate are rectangular structures; and the support plate is a rectangular structure with arc-shaped ends.

[0039] Through the above technical solution, a specific implementation method of the base is provided, which provides stable support for the entire instrument, avoids movement or tilting due to external factors, and ensures the accuracy and reliability of the test; the leveling knob set on the base can easily adjust the level of the base, thereby ensuring the level of the entire instrument and being able to adapt to different ground conditions.

[0040] In this embodiment, if Figure 1 , Figure 3 As shown, the lever assembly 2 is a long beam structure, a fixing hole is provided on the side of the lever assembly 2 relative to the base 1, a fixing rod 201 is fixedly provided on the outer side of one end of the lever assembly 2, an electronic thermometer 3 is fixedly provided on the fixing rod 201, and an extension rod 4 is fixedly provided on the top of the other end of the lever assembly 2.

[0041] like Figure 2 As shown, the lever assembly 2 is placed on the support column between the first vertical plate 101 and the second vertical plate 102, so that the first screw hole 104 opened on the first vertical plate 101 and the second vertical plate 102 is opposite to the fixing hole opened on the side of the lever assembly 2, and the screw is inserted into the first screw hole 104 and tightened to penetrate into the fixing hole, so as to fix the lever assembly 2 on the base 1. In other words, the lever assembly 2 is fixed to the base 1 by inserting the screw from the outside of the first vertical plate 101 and the second vertical plate 102 and tightening it inward to penetrate into the fixing hole of the lever assembly 2.

[0042] like Figure 3 As shown, the electronic thermometer 3 includes a support rod 304, a display terminal is fixedly arranged on the top of the support rod 304, and a temperature sensing contact 303 is fixedly arranged on the bottom of the support rod 304; the display terminal includes a display screen 301 and an adjustment button 302; the electronic thermometer 3 is fixed to the fixed rod 201 by screws. The electronic thermometer 3 is used to measure the ambient temperature during the test process, so as to more accurately interpret and compare the test results and eliminate or reduce the influence of temperature factors on the test results.

[0043] like Figure 4As shown, a micrometer 5 is movably provided above the extension rod 4, and the micrometer 5 moves up and down above the extension rod 4 through a lifting rod 6; the lifting rod 6 is an inverted L-shaped structure, and the micrometer 5 is fixedly provided at one end of the lifting rod 6, and the other end is arranged in a lifting groove 601 in the bracket 7, and the lifting and lowering of the lifting rod 6 is controlled by a distance adjustment knob 701.

[0044] like Figure 4 As shown, the bracket 7 is arranged on one side of the lever assembly 2 close to the extension rod 4, and the bracket 7 includes an upper horizontal plate 702, and the side plates 703 are fixedly connected on both sides of the upper horizontal plate 702 to form a door-shaped structure; the bottoms of the side plates 703 on both sides are respectively fixed on the bottom plate 711, and the two sides of the bottom plate 711 are respectively integrally formed with screw holes 706, and the second leveling device 707 is penetrated in the screw holes 706; a plurality of third screw holes 705 are opened on the side surfaces of the side plates 703 on both sides, corresponding to the connecting holes opened on one end of the connecting plate 8 close to the bracket 7, and after the screws are tightened, the connecting plates 8 on both sides of the bracket can be respectively fixed on the outer sides of the side plates 703, thereby realizing the fixation of the bracket 7 and the connecting plates on both sides.

[0045] like Figure 4 As shown, the second leveling device 707 is the same as the first leveling device, and includes a leveling knob, a leveling screw is fixed at the bottom of the leveling knob, and the leveling screw is fixed on the leveling base. The leveling screw can be driven to rise and fall by rotating the leveling knob, and the leveling screw passes through the screw hole of the base plate 711. When the bracket 7 is uneven, the bracket 7 can be adjusted to a horizontal level by rotating the second leveling device 707 on both sides of the bracket.

[0046] like Figure 5 As shown, the upper horizontal plate 702 is provided with a receiving hole 712, and the receiving hole 712 is provided with a first gear 709 and a second gear 710 which are interlocked with each other. The first gear 709 is fixedly connected with the pitch adjustment knob 701 through a bearing 708, and the second gear 710 is sleeved on the lifting rod 6, and the lifting rod 6 is provided with an external thread, which is matched with the threaded hole inside the second gear 710 through the external thread. In other words, the tooth shapes of the first gear 709 and the second gear 710 match each other. When the pitch adjustment knob 701 is rotated to rotate the first gear 709, the power is transmitted to the second gear 710 through the close contact between the teeth. Since the lifting rod 6 is provided with an external thread matching the threaded hole inside the second gear 710, the rotation of the second gear 710 is converted into the up and down movement of the lifting rod 6, thereby driving the micrometer 5 to move up and down, so as to realize the adjustment of the micrometer in the Beckman beam deflection instrument. Compared with the adjustment of the micrometer in the traditional Beckman beam, this adjustment method saves a lot of processes, is simpler, and has higher convenience.

[0047] like Figure 6As shown, a cross bar 602 is horizontally passed through the bottom of the lifting rod 6. The cross bar 602 and the lifting rod 6 are both in the lifting groove 601. The cross bar 602 is clamped in the lifting groove 601 to constrain the horizontal movement of the micrometer 5 and prevent deflection during the measurement process.

[0048] like Figure 1 As shown, as mentioned above, a plurality of connection holes are respectively provided at both ends of the connection plate 8, one end connection hole corresponds to the second screw hole 105 of the base 1, and the other end connection hole corresponds to the third screw hole 705 of the bracket 7. After the screws are inserted and tightened, the base 1 is connected to the bracket 7 through the connection plates 8 on both sides. Through the connection between the base 1 and the bracket 7, the entire device becomes an integrated device. When changing the measuring point, there is no need to move the bracket 7 back and forth for adjustment; and through this fixed connection, the bottom of the micrometer 5 and the upper part of the extension rod 4 have been calibrated in the horizontal direction, so only the vertical direction needs to be adjusted during adjustment, and a cross bar 602 is set at the bottom of the lifting rod 6 to constrain the horizontal movement of the micrometer 5 to prevent deflection during the measurement process.

[0049] Detailed description of the working principle: After the Beckman beam is assembled on site, it is moved to the measuring point and one end of the electronic thermometer is placed between the wheels. If the terrain is uneven, the leveling knobs in the first and second leveling devices can be turned to adjust the device to a horizontal level. Then turn the distance adjustment knob in the bracket to move the dial gauge up and down so that the bottom of the dial gauge contacts the upper part of the extension rod. After the adjustment is completed, read the data on the electronic thermometer and the data of the dial gauge at this time. After the car drives away, read the data of the dial gauge again. After reading, move the Beckman beam to the next measuring point and repeat the above steps. Due to the fixed connection between the base and the bracket, when the terrain of the front and rear measuring points does not change much, after the Beckman beam is moved to the next measuring point, the distance between the dial gauge and the extension rod remains basically unchanged, so there is no need to adjust it, and the data can be read directly, which greatly facilitates the measurement process.

[0050] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A Beckman beam deflectometer that is easy to adjust and collect data, characterized in that: It includes a base, on which a lever assembly is fixedly arranged, one end of the lever assembly is fixedly arranged with an electronic thermometer, and the top of the other end of the lever assembly is fixedly arranged with an extension rod, the top of the extension rod is in movably contact with the dial indicator above it, and the dial indicator moves up and down above the extension rod through a lifting rod, and the bottom end of the lifting rod is fixedly arranged in a bracket, and the bracket is fixedly connected to the base through a connecting plate.

2. A Beckman beam deflectometer that is easy to adjust and collect data as claimed in claim 1, characterized in that: The base comprises a support plate, a first vertical plate and a second vertical plate opposite to each other are fixedly arranged on the top of the support plate, and first leveling devices are passed through two ends of the support plate.

3. A Beckman beam deflectometer that is easy to adjust and collect data as claimed in claim 2, characterized in that: A support column is fixed between the first vertical plate and the second vertical plate.

4. A Beckman beam deflectometer that is easy to adjust and collect data as claimed in claim 3, characterized in that: A lever assembly is placed on the support column, and the lever assembly is locked and fixed inwardly by the first vertical plate and the second vertical plate.

5. A Beckman beam deflectometer that is easy to adjust and collect data as claimed in claim 1, characterized in that: A fixing rod is fixedly arranged on the outer side of one end of the lever assembly, and an electronic thermometer is fixed on the fixing rod.

6. A Beckman beam deflectometer that is easy to adjust and collect data as claimed in claim 1, characterized in that: The lifting rod is in an inverted L-shaped structure, one end of the lifting rod is fixedly provided with a micrometer, and the other end is arranged in a lifting slot in the bracket.

7. A Beckman beam deflectometer that is easy to adjust and collect data as claimed in claim 1, characterized in that: The bracket is arranged beside one side of the lever assembly close to the extension rod.

8. A Beckman beam deflectometer that is easy to adjust and collect data as claimed in claim 7, characterized in that: The bracket comprises an upper transverse plate, and side plates are respectively fixedly connected to both sides of the upper transverse plate to form a door-shaped structure, and the bottoms of the side plates on both sides are respectively fixed to the bottom plate.

9. A Beckman beam deflectometer that is easy to adjust and collect data as claimed in claim 8, characterized in that: The second leveling devices are provided on both sides of the bottom plate.

10. The Beckman beam deflectometer for easy adjustment and data collection as claimed in claim 1, characterized in that: One end of the connecting plate is fixed on the base, and the other end is fixed on the bracket.

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