A virtual paving thickness measuring device

Abstract

This utility model belongs to the field of virtual thickness measurement, specifically relating to a virtual thickness measuring device, including a measuring rod, a scale tube, a calibration sleeve, and two storage rods. The measuring rod passes through the scale tube, and the calibration sleeve is slidably connected to the scale tube. The length of the scale tube is greater than the length of the measuring rod. Multiple connecting through holes are provided on the measuring rod along its axial direction. A conical head is provided at the lower end of the measuring rod. A connecting ring is provided at the upper part of the scale tube, and two oppositely arranged storage holes are provided on the connecting ring. When the measuring rod is in the storage state, the two storage rods are respectively connected one-to-one in the two storage holes, and the two storage rods pass through the connecting through holes and cooperate. At this time, the conical head is located inside the scale tube. In the storage state, the conical head is located inside the scale tube to avoid safety hazards.

Description

Technical Field

[0001] This utility model belongs to the field of virtual thickness measurement, and specifically relates to a virtual thickness measurement device. Background Technology

[0002] In civil construction, if the construction area is mostly collapsible loess, it can easily cause varying degrees of damage to buildings, leading to significant structural settlement, cracking, tilting, and even seriously affecting their safety and use. With the continuous development of the civil engineering industry, cement-soil replacement is often used when dealing with weak foundations in collapsible loess and sandy soil foundations. This method uses cement and soil to improve the foundation bearing capacity and effectively control the settlement of buildings.

[0003] Cement-soil replacement construction requires high quality and is greatly affected by weather and environment. Nighttime construction and measurement are extremely difficult, and the construction process must be tightly coordinated. During construction, the mixing material must be selected according to the design requirements and compacted in layers. Measurement work should be carried out simultaneously during backfilling, and the elevation and thickness of the backfill surface should be checked and controlled at any time. The thickness of the loose layer must be strictly controlled.

[0004] Existing paving thickness measuring devices use a measuring rod for measurement. The measuring rod has a scale along its axial direction and a conical head at the bottom to facilitate insertion into the paving layer. After repeated use, the scale on the measuring rod is easily contaminated, affecting the measurement reading. Furthermore, when the measuring rod is stored in a warehouse, the conical head is exposed, posing a safety hazard. Utility Model Content

[0005] The purpose of this invention is to provide a device for measuring the thickness of paving materials that avoids contamination of the measuring rod's readings and potential safety hazards.

[0006] To achieve the above objectives, this utility model adopts the following technical solution:

[0007] A loose layer thickness measuring device includes a measuring rod, a scale tube, a calibration sleeve, and two storage rods. The measuring rod passes through the scale tube, and the calibration sleeve is slidably connected to the scale tube. When the measuring rod is inserted into the loose layer for measurement, the calibration sleeve slides upward to indicate the loose layer thickness.

[0008] The length of the scale tube is greater than the length of the measuring rod. The scale tube has graduation lines along its axial direction, and the measuring rod has multiple connecting through holes along its axial direction.

[0009] The lower end of the measuring rod is provided with a conical head, and the upper part of the scale tube is provided with a connecting ring. The connecting ring has two oppositely arranged storage holes. When the measuring rod is in the storage state, the connecting through hole farthest from the conical head is coaxially arranged with the two storage holes. The two storage rods are respectively connected to the two storage holes one by one, and the two storage rods pass through the connecting through hole and cooperate. At this time, the conical head is located inside the scale tube.

[0010] Preferably, the paving thickness measuring device further includes a first connecting rod and a second connecting rod. The bottom of the scale tube has two oppositely arranged fixed through holes, and the calibration sleeve has two oppositely arranged waist-shaped holes. When the measuring rod is in the measuring state, the measuring rod is fixedly connected inside the scale tube through the cooperation of the first connecting rod and the second connecting rod, and the calibration sleeve is slidably connected to the scale tube.

[0011] Preferably, the lower end of the measuring rod has a first connecting portion, and the tapered head is threaded onto the first connecting portion.

[0012] Preferably, the first connecting portion is threaded with an anti-loosening nut corresponding to the upper part of the conical head, and the anti-loosening nut abuts against the upper end of the conical head.

[0013] Preferably, the first connecting rod, the second connecting rod, and the two storage rods all have mating parts, and each mating part has a chamfer on its periphery.

[0014] Preferably, the upper end of the scale tube is fixed or integrally connected with a sealing cap.

[0015] Preferably, the connecting ring has an installation groove, and a bubble level is installed in the installation groove.

[0016] Preferably, the lower end of the calibration sleeve is provided with a horizontal ring arranged along the outer periphery of the calibration sleeve.

[0017] Preferably, the upper end of the measuring rod is provided with a limiting part, and a limiting ring is provided inside the scale tube at a position corresponding to the position above the fixed through hole, wherein the outer diameter of the limiting part is larger than the inner diameter of the limiting ring.

[0018] By adopting the aforementioned design scheme, the beneficial effects of this utility model are as follows: by setting a calibration sleeve to slide on the scale tube, when the measuring rod is inserted into the undulation layer for measurement, the calibration sleeve slides upward to indicate the thickness of the undulation layer, so that the reading can be quickly obtained and the measurement data can be acquired. The fact that the scale tube does not come into contact with the undulation layer can also effectively prevent the reading on the scale tube from being contaminated and affecting the reading accuracy. The length of the scale tube is greater than the length of the measuring rod. When the measuring rod is in the retracted state, the conical head of the measuring rod is located inside the scale tube, avoiding the conical head from being exposed and reducing safety hazards. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the measurement state of the virtual thickness measuring device of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the virtual thickness measuring device of this utility model;

[0021] Figure 3 This is a cross-sectional view of the lattice thickness measuring device of this utility model in its stored state;

[0022] In the picture:

[0023] Measuring rod 10, connecting through hole 11, conical head 12, anti-loosening nut 13, limiting part 14

[0024] Scale tube 20, connecting ring 21, sealing cap 22, limiting ring 23

[0025] Calibration sleeve 30, oblong hole 31, horizontal ring 32

[0026] First connecting rod 41, second connecting rod 42

[0027] Storage rod 50,

[0028] Second connecting part a, mating part b. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] The terms "first," "second," "third," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0031] In this embodiment, Figure 1 The vertical orientation shown is used as a reference for vertical direction.

[0032] like Figures 1-3 As shown, a paving thickness measuring device includes a measuring rod 10, a scale tube 20, a calibration sleeve 30, and two storage rods 50. The measuring rod 10 passes through the scale tube 20, and the calibration sleeve 30 is slidably connected to the scale tube 20. In this embodiment, the paving thickness measuring device also includes a first connecting rod 41 and a second connecting rod 42. The bottom of the scale tube 20 has two oppositely arranged fixing through holes, and the calibration sleeve 30 has two oppositely arranged waist-shaped holes 31. When the measuring rod 10 is in the measuring state, that is, when the conical head 12 is located outside the scale tube 20, the first connecting rod 41 and the second connecting rod 42 are detachably connected together by passing through the corresponding waist-shaped holes 31, fixing through holes, and connecting through holes 11 in sequence, so that the measuring rod 10 is fixedly connected to the scale tube 20, and the calibration sleeve 30 is slidably connected to the scale tube 20.

[0033] In this embodiment, the first connecting rod 41, the second connecting rod 42, and the two storage rods 50 all have a second connecting part a and a mating part b. The mating part b of the first connecting rod 41 is provided with an external thread section, and the mating part b of the second connecting rod 42 is provided with a threaded hole. The first connecting rod 41 and the second connecting rod 42 are connected by threads. The first connecting rod 41 and the second connecting rod 42 can also be detachably connected by other conventional methods.

[0034] The scale tube 20 has graduation lines along its axial direction. When the measuring rod 10 is inserted into the undulation layer for measurement, the calibration sleeve 30 slides upward to indicate the thickness of the undulation layer, so that the measurement data can be obtained quickly. The scale tube 20 does not directly contact the undulation layer, which can effectively prevent the reading on the scale tube from being contaminated and affecting the reading accuracy.

[0035] The lower end of the measuring rod 10 has a first connecting part, on which a conical head 12 is threadedly connected. A lock nut 13 is threadedly connected above the conical head 12 to the first connecting part, and the lock nut 13 abuts against the upper end of the conical head 12. By threading the conical head 12 onto the first connecting part, the conical head 12 can be replaced if it is worn during measurement. The lock nut 13 abuts against the conical head 12 to prevent it from rotating during use and to reduce measurement errors.

[0036] The length of the scale tube 20 is greater than the length of the measuring rod 10. The measuring rod 10 has a plurality of evenly arranged connecting through holes 11 along its axial direction. The upper part of the scale tube 20 is integrally connected to a connecting ring 21. The connecting ring 21 has two oppositely arranged receiving holes, both of which are connected to the interior of the scale tube 20. When the measuring rod 10 is in the receiving state, the connecting through hole farthest from the conical head 12 is coaxially arranged with the two receiving holes. The two receiving rods 50 are respectively connected to the two receiving holes one by one, and the two receiving rods 50 pass through the connecting through holes and cooperate. At this time, the conical head 12 is located inside the scale tube 20. In this embodiment, the second connecting part a of the two receiving rods 50 is provided with an external thread section for connecting to the receiving hole. The mating part b of one receiving rod 50 is provided with a connecting hole, and the mating part b of the other receiving rod 50 cooperates with the connecting hole.

[0037] When the measuring rod 10 is in the retracted state, the first connecting rod 41 and the second connecting rod 42 need to be connected together by passing through the corresponding waist-shaped hole 31 and the fixed through hole in sequence to prevent the calibration sleeve 30 from falling off the scale tube 20 and to prevent the loss of accessories. At this time, the conical head 12 is located above the two connecting rods. By retracting the measuring rod 10 into the scale tube 20, the conical head 12 is prevented from being exposed and safety hazards are reduced.

[0038] In this embodiment, the periphery of each mating part b of the first connecting rod 41, the second connecting rod 42, and the two storage rods 50 is provided with a chamfer so that the mating part b can extend into the corresponding connecting hole.

[0039] When using this paving thickness measuring device, the thickness of the paving layer needs to be estimated. Based on the estimated thickness, select which connecting through hole 11 of the measuring rod 10 to connect the first connecting rod 41 and the second connecting rod 42 to. Assuming the distance between the two connecting through holes 11 is 50cm, if the first connecting rod 41 and the second connecting rod 42 are connected to the connecting through hole 11 at the bottom of the measuring rod 10, the measurement data can be read directly. If the first connecting rod 41 and the second connecting rod 42 are connected to the second connecting through hole 11 of the measuring rod 10 at the distance from the conical head 12, the measurement data is the measurement data marked on the calibration sleeve 30 plus 50cm.

[0040] As a preferred embodiment, the upper end of the scale tube 20 is fixedly or integrally connected with a sealing cap 22 to prevent the measuring rod 10 from sliding out when it is stored, and also to prevent dust from falling into the scale tube 20. The upper end of the measuring rod 10 is integrally connected with a limiting part 14, and a limiting ring 23 is provided inside the scale tube 20 at a position corresponding to the position above the fixed through hole. The outer diameter of the limiting part 14 is larger than the inner diameter of the limiting ring 23. By setting the limiting ring 23 and the limiting part 14, the measuring rod 10 is prevented from sliding out from the lower end of the scale tube 20.

[0041] As a preferred embodiment, the connecting ring 21 is provided with a mounting groove, and a bubble level is provided in the mounting groove; the bubble level is provided to ensure that the measuring rod 10 is inserted vertically into the material layer during measurement, so as to ensure measurement accuracy.

[0042] As a preferred embodiment, the lower end of the calibration sleeve 30 is provided with a horizontal ring 32 arranged along the outer periphery of the calibration sleeve 30. The lower end face of the horizontal ring 32 is arranged horizontally. The lower end face of the horizontal ring 32 is used as a reference surface to determine whether the thickness of the loose layer meets the standard. At the same time, the horizontal ring 32 can be used to scrape or flatten the loose layer to avoid the accumulation of fuzzy material affecting the normal measurement of thickness.

[0043] In summary, by setting the calibration sleeve 30 to slide on the scale tube 20, when the measuring rod 10 is inserted into the undulation layer for measurement, the calibration sleeve 30 slides upward to indicate the thickness of the undulation layer, so that the measurement data can be quickly obtained. The scale tube 20 does not come into contact with the undulation layer, which can effectively prevent the reading on the scale tube 20 from being contaminated and affecting the reading accuracy. The length of the scale tube 20 is greater than the length of the measuring rod 10. When the measuring rod 10 is in the retracted state, the conical head 12 of the measuring rod 10 is located inside the scale tube 20, which prevents the conical head 12 from being exposed and reduces safety hazards.

[0044] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A device for measuring the thickness of a loose layer, characterized in that: It includes a measuring rod, a scale tube, a calibration sleeve, and two storage rods. The measuring rod passes through the scale tube, and the calibration sleeve is slidably connected to the scale tube. When the measuring rod is inserted into the loose ply for measurement, the calibration sleeve slides upward to indicate the thickness of the loose ply. The length of the scale tube is greater than the length of the measuring rod. The scale tube has graduation lines along its axial direction, and the measuring rod has multiple connecting through holes along its axial direction. The lower end of the measuring rod is provided with a conical head, and the upper part of the scale tube is provided with a connecting ring. The connecting ring has two oppositely arranged storage holes. When the measuring rod is in the storage state, the connecting through hole farthest from the conical head is coaxially arranged with the two storage holes. The two storage rods are respectively connected to the two storage holes one by one, and the two storage rods pass through the connecting through hole and cooperate. At this time, the conical head is located inside the scale tube.

2. The loose-lay thickness measuring device as described in claim 1, characterized in that: The paving thickness measuring device also includes a first connecting rod and a second connecting rod. The bottom of the scale tube has two oppositely arranged fixed through holes, and the calibration sleeve has two oppositely arranged waist-shaped holes. When the measuring rod is in the measuring state, the measuring rod is fixedly connected inside the scale tube through the cooperation of the first connecting rod and the second connecting rod, and the calibration sleeve is slidably connected to the scale tube.

3. The loose-lay thickness measuring device as described in claim 2, characterized in that: The lower end of the measuring rod has a first connecting part, and the tapered head is threaded onto the first connecting part.

4. The loose-lay thickness measuring device as described in claim 3, characterized in that: The first connecting part is threaded with a lock nut corresponding to the upper part of the conical head, and the lock nut abuts against the upper end of the conical head.

5. The loose-lay thickness measuring device as described in claim 2, characterized in that: The first connecting rod, the second connecting rod, and the two storage rods all have mating parts, and each mating part has a chamfer on its periphery.

6. The loose-lay thickness measuring device as described in claim 5, characterized in that: The upper end of the scale tube is fixed or integrally connected with a sealing cap.

7. The loose-lay thickness measuring device as described in claim 6, characterized in that: The connecting ring has an installation groove, and a bubble level is installed in the installation groove.

8. The loose-lay thickness measuring device as described in claim 1 or 7, characterized in that: The lower end of the calibration sleeve is provided with a horizontal ring arranged along the outer periphery of the calibration sleeve.

9. The loose-lay thickness measuring device as described in claim 2, characterized in that: The upper end of the measuring rod is provided with a limiting part, and a limiting ring is provided inside the scale tube at a position corresponding to the position above the fixed through hole. The outer diameter of the limiting part is larger than the inner diameter of the limiting ring.

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