Prestressed cement paste dialysis measuring device

Abstract

The utility model discloses a dialysis measuring device for prestressed cement paste, which belongs to the technical field of cement detection and comprises a base and a plurality of measuring units arranged on the base. The measuring unit comprises a test tube assembly and a graduated scale assembly; the test tube assembly comprises a sleeve, a glass test tube and a clamping mechanism; the sleeve is fixed on the base, the glass test tube is vertically inserted into the sleeve, and the clamping mechanism clamps and fixes the glass test tube; the graduated scale assembly comprises a graduated scale and an adjusting mechanism; the graduated scale is vertically arranged on the base through the adjusting mechanism and located on one side of the glass test tube, and the adjusting mechanism can adjust the height of the graduated scale. The device has the advantages of convenience and flexibility in use, good measurement effect, high efficiency and the like.

Description

Technical Field

[0001] This utility model belongs to the field of cement testing technology, and relates to a measuring device, particularly a measuring device for the dialysis of prestressed cement slurry. Background Technology

[0002] Prestressed cement grout bleeding measurement refers to the process of determining the bleeding performance of prestressed cement grout. This measurement is typically used to assess the density and durability of the cement grout, as its bleeding performance directly affects the long-term performance and service life of prestressed structures. Measurement methods may include the bleeding volume method and the bleeding height method, which reveal the uniformity and stability of the prestressed cement grout under natural conditions.

[0003] Prestressed cement grout bleed measurement is a step in the prestressed system of nuclear engineering, mainly used for testing cement grout for grouting. The test requires containers and measuring devices to measure the bleed. During the experiment, the grout is filled into the container to about 3cm from the nozzle opening, with two nozzles per group, and generally 2-3 groups are conducted simultaneously. For example, applications 201110178081.0, 202021146420.8, and 202010564140.7 all disclose bleed measurement devices. However, existing technologies have problems: most existing prestressed cement grout bleed measurement devices cannot keep multiple measuring devices on the same horizontal plane, cannot measure multiple containers simultaneously, and the measurement results are prone to errors. Furthermore, it is difficult to quickly level multiple measuring devices during use, thus reducing the effectiveness of the measurement device. Utility Model Content

[0004] This invention provides a device for measuring the dialysis of prestressed cement slurry, thereby overcoming the shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A prestressed cement slurry dialysis measuring device includes a base and several measuring units disposed on the base; each measuring unit includes a test tube assembly and a scale assembly; the test tube assembly includes a sleeve, a glass test tube, and a clamping mechanism; the sleeve is fixed on the base, the glass test tube is vertically inserted into the sleeve, and the clamping mechanism clamps and fixes the glass test tube; the scale assembly includes a scale and an adjustment mechanism; the scale is vertically disposed on the base via the adjustment mechanism, located on one side of the glass test tube, and the adjustment mechanism can adjust the height of the scale.

[0007] To optimize the above technical solution, the specific measures also include:

[0008] Furthermore, the clamping mechanism includes a clamping plate, a moving rod, a fixed plate, and a tension spring; the fixed plate is fixed to the base and located outside the sleeve; the moving rod passes through the fixed plate and the sleeve, and its inner end is fixed to the clamping plate located inside the sleeve, allowing the moving rod to move relative to the fixed plate and the sleeve; the tension spring is sleeved on the moving rod, located outside the fixed plate, and its outer end is fixed to the outer end of the moving rod; there are two clamping mechanisms, symmetrically arranged; the glass test tube inserted into the sleeve is clamped and fixed by the clamping plates of the two clamping mechanisms; in the clamping state, the tension spring is in a stretched state.

[0009] Furthermore, the clamp is curved to match the surfaces of the sleeve and the glass test tube, and the inner surface of the sleeve and the outer surface of the glass test tube are provided with grooves that match the clamp.

[0010] Furthermore, the sleeve is made of a transparent material.

[0011] Furthermore, the adjustment mechanism includes a fixed block and an adjustment block; the adjustment block is fixed on the base; the two ends of the fixed block are a fixed end and an adjustment end, respectively; the bottom end of the scale is fixed to the fixed end of the fixed block; the adjustment end of the fixed block is connected to the adjustment block and can be fixed at different heights on the adjustment block.

[0012] Furthermore, the adjusting block has an adjusting groove with its opening facing the fixed block, and several positioning grooves distributed along its height direction are located on both sides of the adjusting groove; the adjusting end of the fixed block extends into the adjusting groove; the fixed block is provided with two positioning rods that can extend and retract from the side of its adjusting end; the two positioning rods extend out and are inserted into positioning grooves at any height on both sides of the adjusting groove, and the fixed block is fixed at the height of the positioning groove.

[0013] Furthermore, the fixing block consists of a mounting groove and a cover plate covering the mounting groove; the mounting groove adjustment end has through holes on both sides; two positioning rods are set in the mounting groove, located on both sides of the adjustment end, extending and retracting from the through holes; the mounting groove is also provided with two connecting rods, two traction rods, a movable rod, and a movable rod return spring; the ends of the two connecting rods facing the adjustment end are respectively fixed to the inner ends of the two positioning rods; the two traction rods are symmetrically and inclinedly arranged, and located above the connecting rods; the outer ends of the two traction rods are respectively rotatably connected to both sides in the mounting groove, and the inner ends are respectively slidably connected to the two connecting rods; the movable rod is located above the two traction rods, and both ends are respectively slidably connected to the two traction rods; the movable rod return spring is set between the movable rod and the inner wall of the fixed end of the mounting groove; when the movable rod moves towards the adjustment end, the two traction rods rotate accordingly and push the two connecting rods to move towards the middle, the positioning rods retract accordingly, and the movable rod return spring extends; when the movable rod return spring contracts, the movable rod moves towards the fixed end, the two traction rods rotate accordingly and pull the two connecting rods to move to both sides, and the positioning rods extend and insert into the positioning groove.

[0014] Furthermore, several guide rods are fixed in the mounting groove, arranged along the direction from the adjusting end to the fixed end and passing through the movable rod; a limiting plate fixed in the mounting groove is provided above the two positioning rods, and the limiting plate has a limiting groove; a limiting post is fixed on the upper side of the inner end of each of the two positioning rods, which extends out of the limiting groove; a positioning rod return spring is provided between the two positioning rods; when the two positioning rods retract, the positioning rod return spring is compressed.

[0015] Furthermore, the cover plate has a strip-shaped movable hole; a pull rod extending from the movable hole is fixed on the movable rod.

[0016] Furthermore, the scale includes a scale body and a pointer; one end of the pointer extends into the inner cavity of the scale body and is magnetically slidably connected to the inner cavity of the scale body.

[0017] The beneficial effects of this utility model are as follows: This utility model provides a prestressed cement slurry percolation measuring device. By setting a sleeve and clamping mechanism, the glass test tube can be stably fixed on the base without any cost issues. Simultaneously, this device also incorporates an adjustment mechanism to allow for the adjustment of the scale height. This allows for the alignment of the zero mark on the scale with the bottom of the glass test tube's inner cavity when using glass test tubes with different bottom thicknesses, making the device more flexible and convenient to use. Furthermore, this device provides a scale that can quickly and accurately position itself, thereby enabling rapid measurement of the slurry and improving measurement efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the prestressed cement slurry dialysis measuring device;

[0019] Figure 2 This is a cross-sectional structural diagram of the test tube assembly;

[0020] Figure 3 This is a schematic diagram of the test tube assembly;

[0021] Figure 4 yes Figure 2 Enlarged view of region I;

[0022] Figure 5 This is a schematic diagram of part of the adjustment mechanism;

[0023] Figure 6 This is a schematic diagram of the ruler's structure;

[0024] Figure 7 yes Figure 6 Enlarged view of region II. Detailed Implementation

[0025] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0026] like Figure 1 and 2 As shown, this utility model provides a prestressed cement slurry seepage measurement device, including a base 1 and six measurement units disposed on the base 1.

[0027] The measuring unit includes a test tube assembly 2 and a scale assembly 3. The test tube assembly 2 includes a sleeve 21, a glass test tube 22, and a clamping mechanism 23. The sleeve 21 is fixed to the base 1, the glass test tube 22 is vertically inserted into the sleeve 21, and the clamping mechanism 23 clamps and fixes the glass test tube 22. The scale assembly 3 includes a scale 31 and an adjustment mechanism. The scale 31 is vertically mounted on the base 1 via the adjustment mechanism, located on one side of the glass test tube 22. For example, in this embodiment, the scale 31 is located on the rear side of the glass test tube 22, and the adjustment mechanism can adjust the height of the scale 31.

[0028] In use, the glass test tube 22 is fixed inside the sleeve 21 by the clamping mechanism 23, and then the height of the scale 31 is adjusted by the adjusting mechanism so that the zero mark at the bottom is horizontally aligned with the measuring mark at the bottom of the glass test tube 22, and then the dialysis measurement is performed.

[0029] Regarding clamping mechanism 23, such as Figure 2 and 3 As shown, in a specific embodiment, the clamping mechanism 23 includes a clamping plate 231, a moving rod 232, a fixing plate 233, and a tension spring 234. The fixing plate 233 is fixed to the base 1 and located outside the sleeve 21. The moving rod 232 passes through the fixing plate 233 and the sleeve 21, and its inner end is fixed to the clamping plate 231 located inside the sleeve 21. The moving rod 232 is movable relative to the fixing plate 233 and the sleeve 21. The tension spring 234 is sleeved on the moving rod 232, located outside the fixing plate 233, and its outer end is fixed to the outer end of the moving rod 232.

[0030] There are two clamping mechanisms 23, symmetrically arranged. The glass test tube 22 inserted into the sleeve 21 is clamped and fixed by the clamping plates 231 of the two clamping mechanisms 23. In the clamping state, the tension spring 234 is in a stretched state. Specifically, when the glass test tube 22 is clamped between the two clamping plates 231, the moving rod 232 is pushed outward, at which time the tension spring 234 is in a stretched state, thereby ensuring stable clamping of the glass test tube 22. After the glass test tube 22 is pulled out, the tension spring 234 tends to contract, and under the contraction action of the tension spring 234, the moving rod 232 drives the clamping plate 231 to move inward and reset.

[0031] In a preferred embodiment, the clamp 231 is curved to match the surfaces of the sleeve 21 and the glass test tube 22, and both the inner surface of the sleeve 21 and the outer surface of the glass test tube 22 have grooves that match the clamp 231. That is, during the downward insertion of the glass test tube 22, the clamp 231 can be fully inserted into the groove on the inner side of the sleeve 21, and then, after the glass tube is fully inserted into the sleeve 21, the clamp 231 can be inserted into the groove on the outer surface of the glass test tube 22. This allows the outer surface of the glass test tube 22 to fit snugly against the inner surface of the sleeve 21, thereby better stabilizing the glass test tube 22.

[0032] In a preferred embodiment, the sleeve 21 is made of a transparent material, thereby facilitating the alignment of the zero mark of the scale 31 with its bottom measuring point.

[0033] Regarding regulatory mechanisms, such as Figure 4 and 5 As shown, in a specific embodiment, the adjustment mechanism includes a fixed block 32 and an adjusting block 33. The adjusting block 33 is fixed to the base 1. The two ends of the fixed block 32 are a fixed end A and an adjusting end B, respectively. The bottom end of the scale 31 is fixed to the fixed end A of the fixed block 32. The adjusting end B of the fixed block 32 is connected to the adjusting block 33 and can be fixed at different heights on the adjusting block 33. That is, the bottom end of the scale 31 is fixed at different heights on the adjusting block 33 through the fixed block 32, thereby realizing the adjustment of the height of the scale 31.

[0034] Specifically, the adjusting block 33 has an adjusting groove 331 with its opening facing the fixed block 32. The adjusting groove 331 has several positioning grooves 332 distributed along its height direction on both sides. The adjusting end B of the fixed block 32 extends into the adjusting groove 331. The fixed block 32 has two positioning rods 321 that can extend and retract from the sides of its adjusting end B. The two positioning rods 321 extend and insert into the positioning grooves 332 at any height on both sides of the adjusting groove 331, fixing the fixed block 32 at that height. That is, by retracting the positioning rods 321, the fixed block 32 can move up and down within the adjusting groove 331. When it reaches the desired height, extending the positioning rods 321 fixes the fixed block 32 at that height.

[0035] Specifically, the fixing block 32 consists of a mounting groove 3221 and a cover plate 3222 covering the mounting groove 3221. The mounting groove 3221 has through holes on both sides of the adjusting end B. Two positioning rods 321 are disposed in the mounting groove 3221, located on both sides of the adjusting end B, extending out and retracting from the through holes.

[0036] The mounting groove 3221 also includes two connecting rods 323, two traction rods 324, a movable rod 325, and a movable rod return spring 326. The connecting rods 323 are arranged along the direction from the adjusting end B to the fixed end A, with the ends of the two connecting rods 323 facing the adjusting end B respectively fixed to the inner ends of the two positioning rods 321. The two traction rods 324 are symmetrically and obliquely arranged, with their outer ends facing the adjusting end B and their inner ends facing the fixed end A, and are located above the connecting rods 323. The outer ends of the two traction rods 324 are rotatably connected to the mounting blocks 3241 fixed on both sides of the mounting groove 3221, and their inner ends are slidably connected to the two connecting rods 323 respectively. The movable rod 325 is located above the two traction rods 324, with both ends slidably connected to the two traction rods 324 respectively. The movable rod return spring 326 is disposed between the movable rod 325 and the inner wall of the fixed end A of the mounting groove 3221.

[0037] When the movable rod 325 moves towards the adjusting end B, the two traction rods 324 rotate accordingly, pushing the two connecting rods 323 towards the center. The positioning rod 321 retracts, and the movable rod return spring 326 extends. When the movable rod return spring 326 retracts, the movable rod 325 moves towards the fixed end A. The two traction rods 324 rotate accordingly, pulling the two connecting rods 323 to both sides. The positioning rod 321 then extends and inserts into the positioning groove 332.

[0038] Preferably, two guide rods 327 are fixed in the mounting groove 3221, which are arranged along the direction from the adjusting end B to the fixed end A and pass through the movable rod 325, thereby limiting and guiding the movable rod 325 during its movement, so that it can move stably along the guide rods 327.

[0039] Above the two positioning rods 321, a limiting plate 328 is fixed within the mounting groove 3221. The limiting plate 328 has a limiting groove 3281 extending through its upper and lower surfaces and arranged perpendicularly to the direction from the adjusting end B to the fixed end A. A limiting post 3211, extending upward through the limiting groove 3281, is fixed to the upper inner end of each of the two positioning rods 321. Under the constraint of the limiting post 3211 and the limiting groove 3281, the two positioning rods 321 extend and retract along the limiting groove 3281, thereby making the entire rotation process more stable.

[0040] A positioning rod return spring 329 is provided between the two positioning rods 321. When the two positioning rods 321 retract, the positioning rod return spring 329 is compressed. When the two positioning rods 321 extend, the compressed positioning rod return spring 329 further pushes the positioning rods 321 to extend.

[0041] The cover plate 3222 has a strip-shaped movable hole 3223 extending through its upper and lower surfaces and running along the direction from the adjusting end B to the fixed end A. A pull rod 3251 extending upward from the movable hole 3223 is fixed to the movable rod 325. By pulling the pull rod 3251 outside the cover plate 3222, the movable rod 325 inside the mounting groove 3221 can be moved.

[0042] Regarding ruler 31, such as Figure 1 , 6 As shown in Figure 7, in a preferred embodiment, the scale 31 includes a scale body 311 and a pointer 312. One end of the pointer 312 extends into the inner cavity of the scale body 311 and is magnetically slidably connected to the inner cavity of the scale body 311. That is, the pointer 312 can slide relative to the scale body 311, and at the same time, the pointer 312 and the scale body 311 are magnetically attracted to each other. When the pointer 312 is moved to any height of the scale body 311, the pointer 312 can be magnetically attracted and fixed at that position of the scale body 311.

[0043] When in use, the bottom of the glass test tube 22 is inserted into the inner cavity of the sleeve 21. As the glass test tube 22 moves downward, it will contact the two side clamps 231 through the arc surface of its bottom, thereby achieving the effect of pushing the two side clamps 231 outward. During the movement of the clamping plate 231, it pushes the moving rod 232 outward. As the moving rod 232 moves outward, it stretches the tension spring 234 through its interaction with the fixed plate 233. After the clamping plate 231 moves to fit into the groove of the inner cavity of the sleeve 21, the bottom of the glass test tube 22 can be fully inserted into the bottom of the inner cavity of the sleeve 21. At the same time, the grooves on both sides of the glass test tube 22 are aligned with the clamping plates 231 on both sides. Under the tension and contraction of the tension spring 234, the moving rod 232 quickly drives the clamping plate 231 to fit into the groove of the glass test tube 22, thereby achieving the effect of clamping and limiting the glass test tube 22 through its interaction with the sleeve 21, and preventing the glass test tube 22 from shifting at the top of the base 1.

[0044] Since the bottom thicknesses of various glass test tubes 22 differ, the height of the scale 31 needs to be adjusted according to the specific glass test tube 22 being used, so that the zero mark at the bottom of the scale 31 is horizontally aligned with the measuring mark at the bottom of the glass test tube 22. The specific adjustment method is as follows: pull the pull rod 3251 according to the opening trajectory of the movable hole 3223. The movable rod 325 moves accordingly, and through the rotation of the traction rod 324 and the inward movement of the connecting rod 323, the positioning rod 321 is driven to retract inward. At this time, the movable rod return spring 326 is stretched and the positioning rod return spring 329 is compressed. After the positioning rod 321 retracts, the fixed block 32 moves within the adjusting groove 331 until the zero mark at the bottom of the scale 31 is horizontally aligned with the bottom of the inner cavity of the glass test tube 22. Then, the pull rod 3251 is released, and the extended movable rod return spring 326 retracts, quickly driving the movable rod 325 to return to its original position. During the return process of the movable rod 325, the traction rod 324 rotates in the opposite direction, driving the connecting rod 323 to move to both sides. At the same time, the compressed positioning rod return spring 329 extends. Under the combined action of the extended connecting rod 323 and the positioning rod return spring 329, the positioning rod 321 quickly extends and inserts into the positioning groove 332, thereby achieving the effect of locking the height of the scale 31.

[0045] Then, the slurry can be poured into the glass test tube 22, and the pointer 312 can be pulled to align it horizontally with the top of the slurry in the glass test tube 22. The pointer 312 can be released, and the magnetic connection between the pointer 312 and the ruler body 311 can be used to achieve rapid positioning. Then, the prestressed cement slurry dialysis measurement can be performed according to the existing testing method, which will not be elaborated further.

[0046] It should be noted that the terms such as "upper", "lower", "left", "right", "front", and "back" used in this utility model are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0047] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A prestressed cement paste dialysis measuring device, characterized in that: it comprises a base and a plurality of measuring units arranged on the base; the measuring unit comprises a test tube assembly and a scale assembly; the test tube assembly comprises a sleeve, a glass test tube and a clamping mechanism; the sleeve is fixed on the base, the glass test tube is vertically inserted into the sleeve, and the clamping mechanism clamps and fixes the glass test tube; the scale assembly comprises a scale and an adjusting mechanism; the scale is vertically arranged on the base through the adjusting mechanism and is located on one side of the glass test tube, and the adjusting mechanism can adjust the height of the scale.

2. The prestressed cement paste dialysis measuring device according to claim 1, characterized in that: the clamping mechanism comprises a clamping plate, a moving rod, a fixed plate and a tension spring; the fixed plate is fixed on the base and located outside the sleeve; the moving rod passes through the fixed plate and the sleeve, the inner end of the moving rod is fixed with the clamping plate located in the sleeve, and the moving rod can move relative to the fixed plate and the sleeve; the tension spring is sleeved on the moving rod and located outside the fixed plate, and the outer end of the tension spring is fixed with the outer end of the moving rod; the number of clamping mechanisms is two, and the clamping mechanisms are symmetrically arranged; the glass test tube inserted into the sleeve is clamped and fixed by the clamping plates of the two clamping mechanisms; in the clamping state, the tension spring is in the stretched state.

3. The prestressed cement paste dialysis measuring device according to claim 2, characterized in that: the clamping plate is in the shape of a curved surface matched with the surface of the sleeve and the glass test tube, and the inner surface of the sleeve and the outer surface of the glass test tube are provided with grooves matched with the clamping plate.

4. The prestressed cement paste dialysis measuring device according to claim 1, characterized in that: the sleeve is made of transparent material.

5. The prestressed cement paste dialysis measuring device according to claim 1, characterized in that: the adjusting mechanism comprises a fixed block and an adjusting block; the adjusting block is fixed on the base; the fixed block has a fixed end and an adjusting end at two ends thereof; the bottom end of the scale is fixed with the fixed end of the fixed block; the adjusting end of the fixed block is connected with the adjusting block and can be fixed at different heights of the adjusting block.

6. The prestressed cement paste dialysis measuring device according to claim 5, characterized in that: the adjusting block has an adjusting groove with an opening facing the fixed block, and the two sides of the adjusting groove are provided with a plurality of positioning grooves distributed along the height direction thereof; the adjusting end of the fixed block extends into the adjusting groove; the fixed block is provided with two positioning rods capable of extending and retracting from the side of the adjusting end thereof; the two positioning rods extend and are inserted into the positioning grooves at any height of the two sides of the adjusting groove, and the fixed block is fixed at the height of the positioning groove.

7. The prestressed cement paste dialysis measuring device according to claim 6, characterized in that: the fixed block is composed of a mounting groove and a cover plate covering the mounting groove; the two sides of the adjusting end of the mounting groove are provided with through holes; the two positioning rods are arranged in the mounting groove and located at the two sides of the adjusting end and extend and retract from the through holes; the mounting groove is further provided with two connecting rods, two traction rods, a movable rod and a movable rod return spring; one end of each of the two connecting rods facing the adjusting end is fixed with the inner end of the two positioning rods; ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The two traction rods are symmetrically and obliquely arranged above the connecting rods, and the outer ends of the two traction rods are respectively rotatably connected with the two sides in the mounting slot, and the inner ends are respectively slidably connected with the two connecting rods. The movable rod is above the two traction rods, and the two ends are respectively slidably connected with the two traction rods. The movable rod reset spring is arranged between the movable rod and the inner wall of the fixed end of the mounting slot. The movable rod moves to the adjusting end, the two traction rods rotate and push the two connecting rods to move to the middle, the positioning rod retracts, and the movable rod reset spring elongates; the movable rod reset spring contracts, the movable rod moves to the fixed end, the two traction rods rotate and pull the two connecting rods to move to the two sides, and the positioning rod extends and inserts into the positioning slot.

8. The prestressed cement paste dialysis measuring device according to claim 7, characterized in that: a plurality of guide rods are fixed in the mounting slot and pass through the movable rod in the direction from the adjusting end to the fixed end; a limiting plate is arranged above the two positioning rods and fixed in the mounting slot, the limiting plate has a limiting slot, and a limiting column is fixed on the upper side of the inner end of each positioning rod and passes through the limiting slot; a positioning rod reset spring is arranged between the two positioning rods, and the positioning rod reset spring is compressed when the two positioning rods retract.

9. The prestressed cement paste dialysis measuring device according to claim 7, characterized in that: the cover plate has a strip-shaped movable hole, and a pull rod is fixed on the movable rod and extends out of the movable hole.

10. The prestressed cement paste dialysis measuring device according to claim 1, characterized in that: the scale includes a scale body and a pointer; one end of the pointer extends into the inner cavity of the scale body and is connected with the inner cavity of the scale body through magnetic sliding connection.

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