Stable cement grouting fluidity measuring device

Abstract

The utility model discloses a stable cement grouting fluidity measuring device, which relates to the technical field of cement mortar measurement and comprises a base, a mounting seat and a measuring instrument body, the base is connected with the mounting seat in a lifting manner, the mounting seat is annular, and the measuring instrument body is positioned in the mounting seat. The tester body and the mounting seat are connected through electric telescopic rods and a buffer pad which are distributed circumferentially, a fixing plate of the electric telescopic rods is provided with a fixing disc, the inner side of the fixing disc is provided with an air bag, the air bag abuts against the tester body after being inflated and is connected with an inflation valve, the fixing disc is connected with a sliding ring in a sliding mode, and the sliding ring is connected to the fixing plate through a crank sliding block structure. The slip ring slides to trigger a switch of the inflation valve. According to the utility model, the buffer pad and the air bag are inflated, so that the buffer protection is enhanced, the tester is prevented from shaking due to vibration, and the electric telescopic rod enables the clamping plate to be accurately attached to the shapes of tester bodies with different sizes, so that reliable contact and stable clamping are realized.

Description

Technical Field

[0001] This utility model relates to the field of cement mortar testing technology, specifically to a stable cement grout flowability testing device. Background Technology

[0002] The cement mortar flowability tester is mainly used for testing the flowability of cement mortar. Cement mortar flowability is a measure used to express the flowability of cement mortar. Generally, the lower the standard consistency water requirement of cement, the better the performance of cement. It is suitable for testing pozzolanic silicate cement, composite silicate cement, ordinary silicate cement and slag silicate cement with pozzolanic admixtures.

[0003] A search revealed a Chinese patent, "An Improved Device for a Cement Mortar Flowability Tester," publication number CN215339389U. This patent primarily utilizes a tester body with multiple sets of adsorption and fixing components connected to its lower end. These components include vacuum suction cups with vacuum connecting columns. One side of each vacuum connecting column has a suction nozzle hole, and a vacuum suction nozzle is connected to the outside of the suction nozzle hole. A plug is threaded onto the end of the vacuum suction nozzle furthest from the vacuum connecting column. The tester body also includes a base with multiple fixing holes corresponding to the adsorption and fixing components. Fixing columns are connected to the vacuum connecting columns, matching the fixing holes. However, in practical use, the aforementioned patent's technical solution suffers from significant environmental vibrations, causing the tester to be susceptible to shaking during operation, affecting measurement results and leading to data deviations. Utility Model Content

[0004] Technical problem to be solved by the utility model

[0005] The technical problem to be solved by this utility model is to provide a stable cement grouting fluidity measuring device. The device enhances buffer protection by using a buffer pad and an air bladder to prevent the measuring instrument from shaking due to vibration. The electric telescopic rod allows the clamping plate to accurately fit the shape of the measuring instrument body of different sizes, achieving reliable contact and stable clamping.

[0006] Technical solution

[0007] To solve the above problems, the technical solution provided by this utility model is as follows:

[0008] A stable cement grout flowability measuring device includes a base, a mounting base, and a measuring instrument body. The base and the mounting base are connected in a lifting manner. The mounting base is annular, and the measuring instrument body is located within the mounting base. The measuring instrument body and the mounting base are connected by a circumferentially distributed electric telescopic rod and a buffer pad. A fixed plate is provided on the fixed plate of the electric telescopic rod, and an air bladder is provided on the inner side of the fixed plate. After the air bladder is inflated, it abuts against the measuring instrument body and is connected to an inflation valve. A slip ring is slidably connected to the fixed plate. The slip ring is connected to the fixed plate by a crank-slider structure. After the slip ring slides, it triggers the opening and closing of the inflation valve.

[0009] The base and mounting base are connected by a lifting mechanism, allowing users to adjust the height of the measuring instrument body according to actual needs, adapting to different experimental conditions or facilitating operation. The measuring instrument body is connected to the mounting base via multiple circumferentially distributed electric telescopic rods and buffer pads. The electric telescopic rods automatically adjust their length according to the specific dimensions of the measuring instrument body, ensuring that the measuring instrument is securely fixed in the mounting base. The buffer pads provide additional shock absorption protection, reducing the impact of external vibrations on the measuring instrument. Each electric telescopic rod has a mounting plate with a mounting disc containing an air bladder inside. When the air bladder is inflated, it conforms to the surface of the measuring instrument body, providing tighter support and protection. An inflation valve controls the inflation and deflation of the air bladder. A slip ring is slidably connected to the mounting disc, and this slip ring is connected to the mounting plate via a crank-slider structure. Sliding the slip ring triggers the inflation valve, enabling automatic inflation or deflation of the air bladder.

[0010] Optionally, the fixed plate is provided with a collar and a groove, and the sliding ring slides within the groove.

[0011] The collar is used to guide or restrict the movement trajectory of the slip ring, ensuring it moves in a predetermined direction and manner. The groove allows the slip ring to slide within it, providing a defined sliding path and ensuring the straightness and stability of the slip ring's movement, avoiding unnecessary offset or wobbling. Because the slip ring only slides within the groove, this reduces the friction area and makes it easier to apply lubrication to the contact surfaces, thus reducing wear during long-term use. The slip ring is connected to the fixed plate via a crank-slider structure and can trigger the inflation valve during sliding. The groove design ensures that the slip ring can accurately trigger the inflation valve to control the inflation and deflation process of the airbag.

[0012] Optionally, the slip ring is connected to a connecting rod, the other end of which is hinged to the fixed plate.

[0013] The slip ring is mounted within a groove on the fixed plate, allowing it to slide within it. The slip ring's primary function is to trigger the inflation valve, controlling the inflation and deflation of the airbag. One end of the connecting rod is connected to the slip ring, while the other end is hinged to the fixed plate. The term "hinged" here means that the connecting rod can rotate freely within a certain range, allowing its angle to change with the movement of the slip ring. The hinge point on the fixed plate provides flexibility, enabling the linear movement of the slip ring to be converted into an operating force on the inflation valve.

[0014] Optionally, the slip ring and the connecting rod are symmetrically arranged on both sides of each electric telescopic rod.

[0015] By symmetrically arranging slip rings and connecting rods on both sides of each electric telescopic rod, a balanced supporting force can be ensured for the measuring instrument body when the airbag is inflated. This avoids tilting or offset caused by uneven pressure on one side, thereby improving measurement accuracy.

[0016] Optionally, the lower part of the mounting base is connected to symmetrically distributed connecting rods two, which are hinged to the same sleeve plate. The sleeve plate is slidably connected to the guide rod, and a cylinder is connected below the sleeve plate. The cylinder is fixed on the base.

[0017] The multi-point symmetrical hinged connecting rod and guide rod structure effectively enhances the system's anti-tipping ability. Cylinder drive enables stepless lifting, adaptable to various measuring instruments. The guide rod, fixed to the base and penetrating the sleeve plate, guides and limits movement, preventing the sleeve plate from shifting or wobbling during vertical movement.

[0018] Optionally, the connecting rod, the sleeve, and the cylinder are each provided with two symmetrical sets.

[0019] The typical "double-sided symmetrical linkage structure" aims to improve the overall balance, load-bearing capacity, and vibration resistance of the device. Two sets of cylinders extend and retract simultaneously, pushing their respective sleeves. These sleeves then drive their connecting rods to rise or fall. Because the mounting base is a rigid ring structure, supported at both ends by the two sets of connecting rods, smooth lifting and lowering are ensured. Even if one side experiences uneven force, the other side maintains stable support. The symmetrical structure automatically compensates for deviations, keeping the mounting base horizontal and ensuring the measuring instrument remains undisturbed.

[0020] Optionally, the measuring instrument body includes a feed inlet, a storage hopper, a discharge pipe, and a control valve, wherein the feed inlet is adapted to the clamping plate of the electric telescopic rod.

[0021] The feed inlet is used to add the cement mortar material to be tested. The feed inlet is designed to fit the clamping plate of the electric telescopic rod, ensuring that the feeding operation is not affected during clamping and maintaining a seal to prevent material leakage. The storage hopper, located below the feed inlet, is used to temporarily store the cement mortar added through the feed inlet. The design of the storage hopper needs to consider capacity, ease of cleaning, and smooth material flow. The discharge pipe, connected below the storage hopper, is the channel for the cement mortar to flow out. The design of the discharge pipe must ensure a uniform flow rate to avoid blockages or material residue. A control valve is installed on the discharge pipe to control the flow rate and time of the cement mortar. Adjusting the control valve allows for precise control of experimental conditions, thereby obtaining accurate measurement results.

[0022] Optionally, the airbag includes an auxiliary airbag, a connecting tube, and a pressure airbag. The auxiliary airbag is connected to the inflation valve, and the pressure airbag, after being inflated, abuts against the main body of the measuring instrument. The auxiliary airbag is connected to the pressure airbag through the connecting tube.

[0023] The dual airbag design not only improves the overall system's flexibility but also effectively absorbs and disperses the impact of external vibrations, further enhancing stability.

[0024] Optionally, the pressure-reducing airbags are elliptical in shape and spaced apart in the gaps of the electric telescopic rod.

[0025] Placing the pressure-reducing airbags in the gaps between the electric telescopic poles makes full use of space and avoids conflicts with the operating path of the electric telescopic poles. Furthermore, this layout ensures more balanced force distribution in all directions, further enhancing the overall structural stability.

[0026] Beneficial effects

[0027] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0028] This invention utilizes a buffer pad to further absorb vibration energy, reducing the adverse effects of vibration on the measuring instrument. When vibration is transmitted to the fixed plate, the connecting rod is forced to push the slip ring to slide within the groove. The slip ring contacts the inflation valve, triggering it to inflate the auxiliary airbag. The gas quickly enters the pressure airbag through the connecting pipe, causing it to expand rapidly and forcefully press against the measuring instrument body, fixing it within the fixed plate. This enhances buffer protection and prevents the measuring instrument from shaking due to vibration, achieving all-round protection for the measuring instrument body. The electric telescopic rod allows the clamping plate to precisely fit the shape of measuring instrument bodies of different sizes, achieving reliable contact and stable clamping. Combined with the buffer component structure, the measuring instrument body is firmly fixed within the fixed plate, effectively suppressing displacement and shaking of the measuring instrument body during operation, ensuring its stability during operation, and thus ensuring that the measurement accuracy is not affected. Attached Figure Description

[0029] Figure 1 A three-dimensional schematic diagram of a stable cement grouting fluidity measuring device proposed for an embodiment of this utility model;

[0030] Figure 2 A front view schematic diagram of a stable cement grouting fluidity measuring device proposed in an embodiment of this utility model;

[0031] Figure 3 Right view schematic diagram of a stable cement grouting fluidity measuring device proposed in an embodiment of this utility model;

[0032] Figure 4 A top view schematic diagram of a stable cement grouting fluidity measuring device proposed in an embodiment of this utility model;

[0033] Figure 5 A magnified schematic diagram at point P of a stable cement grouting fluidity measuring device proposed in an embodiment of this utility model;

[0034] 1. Measuring instrument body; 101. Feed inlet; 102. Storage hopper; 103. Discharge pipe; 104. Control valve; 2. Mounting base; 3. Fixing plate; 31. Collar; 32. Groove; 4. Buffer assembly; 401. Buffer pad; 402. Fixing plate; 403. Connecting rod one; 404. Slip ring; 405. Inflation valve; 406. Auxiliary airbag; 407. Connecting pipe; 408. Pressure airbag; 5. Electric telescopic rod; 51. Clamping plate; 6. Guide rod; 7. Support column; 8. Base; 9. Sleeve plate; 10. Connecting rod two; 11. Cylinder. Detailed Implementation

[0035] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0036] Example 1

[0037] Combined with appendix Figure 1-5 A stable cement grout flowability measuring device includes a base 8, a mounting base 2 and a measuring instrument body 1. The measuring instrument body 1 includes a feed inlet 101, a storage hopper 102, a discharge pipe 103 and a control valve 104. The feed inlet 101 is adapted to the clamping plate 51 of the electric telescopic rod 5.

[0038] The measuring instrument body 1 is externally equipped with a mounting base 2, such as... Figure 1 and Figure 4 As shown, a fixing plate 3 is provided between the measuring instrument body 1 and the mounting base 2, and a collar 31 is provided inside the fixing plate 3.

[0039] Combined with appendix Figure 2 , 3The base 8 and the mounting base 2 are connected in a lifting manner. The lower part of the mounting base 2 is connected to symmetrically distributed connecting rods 10. The connecting rods 10 are hinged to the same sleeve plate 9. The sleeve plate 9 is slidably connected to the guide rod 6. A cylinder 11 is connected below the sleeve plate 9 and is fixed on the base 8. The connecting rods 10, the sleeve plate 9, and the cylinder 11 are all provided in two symmetrical sets.

[0040] Combined with appendix Figure 1 , 4 5. The mounting base 2 is annular, and the measuring instrument body 1 is located in the mounting base 2. The measuring instrument body 1 and the mounting base 2 are connected by circumferentially distributed electric telescopic rods 5 and buffer pads 401. A fixed plate 3 is provided on the fixed plate 402 of the electric telescopic rod 5. An airbag is provided on the inner side of the fixed plate 3. After the airbag is inflated, it abuts against the measuring instrument body 1 and is connected to an inflation valve 405. A slip ring 404 is slidably connected to the fixed plate 402 by a crank-slider structure. After the slip ring 404 slides, it triggers the opening and closing of the inflation valve 405. The fixed plate 3 is provided with a collar 31 and a groove 32. The slip ring 404 slides in the groove 32. The slip ring 404 is connected to a connecting rod 403. The other end of the connecting rod 403 is hinged to the fixed plate 402. The slip ring 404 and the connecting rod 403 are symmetrically arranged on both sides of each electric telescopic rod 5.

[0041] The collar 31 has several grooves 32 on its side. The mounting base 2 is equipped with a buffer assembly 4, which includes a buffer pad 401, a fixing plate 402, a connecting rod 403, a slip ring 404, an inflation valve 405, an auxiliary airbag 406, a connecting pipe 407, and a pressure airbag 408.

[0042] A buffer pad 401 is fixed to the inner diameter of the mounting base 2. Several buffer pads 401 are provided; in this embodiment, there are six. The fixing plate 402 is connected to a slip ring 404 via connecting rods 403 on both sides below. The slip ring 404 is located inside the groove 32. The inflation valve 405 is connected to the auxiliary airbag 406 via the through groove 32, the collar 31, and the auxiliary airbag 406. The airbag includes the auxiliary airbag 406, the connecting tube 407, and the pressure airbag 408. The auxiliary airbag 406 is connected to the inflation valve 405. After inflation, the pressure airbag 408 abuts against the measuring instrument body 1. The auxiliary airbag 406 is connected to the pressure airbag 408 via the connecting tube 407. The pressure airbag 408 is elliptical and spaced apart within the gaps of the electric telescopic rod 5. The auxiliary airbag 406 is connected to the pressure airbag 408 via the connecting pipe 407 below. Several auxiliary airbags 406 and several pressure airbags 408 are provided. When the measuring instrument body 1 is subjected to external vibration or impact, the buffer pad 401 at the inner diameter of the mounting base 2 further absorbs the vibration energy, effectively reducing the adverse effects of vibration on the measuring instrument body 1. At this time, the fixing plate 402 is connected to the slip ring 404 and the collar 31 on the fixing plate 3 via the connecting rods 403 on both sides below. The slip ring 404 is located in the groove 32 on the side of the collar 31. Once the vibration or impact is transmitted to the fixing plate 402, the connecting rods 403 on both sides below it will be stressed, thereby causing the slip ring 404 to... Sliding within the groove 32, when the slip ring 404 slides to the position of the inflation valve 405, it will press against the inflation valve 405, and the inflation valve 405 will then be activated, inflating the auxiliary airbag 406. The gas in the auxiliary airbag 406 will quickly flow into the pressure airbag 408 through the connecting pipe 407, causing the pressure airbag 408 to expand rapidly. The expanded pressure airbag 408 will forcefully press against the measuring instrument body 1, ensuring that the measuring instrument body 1 is firmly fixed in the fixed plate 3, greatly improving the buffer protection effect of the measuring instrument body 1, effectively preventing the measuring instrument body 1 from shaking due to vibration, thereby preventing the measurement accuracy from decreasing and ensuring that the measuring instrument body 1 is fully protected.

[0043] An electric telescopic rod 5 is provided below the fixed plate 402. The electric telescopic rod 5 is connected to the clamping plate 51 through the fixed plate 3. The clamping plate 51 is in contact with the measuring instrument body 1.

[0044] By adjusting the electric telescopic rod 5, the clamping plate 51 can precisely fit the shape of the measuring instrument body 1 of different sizes, achieving reliable contact and stable clamping. Therefore, under the action of the electric telescopic rod 5, a stable clamping force can be applied to the measuring instrument body 1. Combined with the structure of the buffer component 4, the measuring instrument body 1 is firmly fixed in the fixed plate 3, effectively suppressing the displacement and shaking of the measuring instrument body 1 during the working process, ensuring its stability during operation, and thus ensuring that the measurement accuracy is not affected.

[0045] A sleeve plate 9 is fitted on the outside of the guide rod 6. Connecting rods 10 are connected to both sides of the sleeve plate 9. The sleeve plate 9 is connected to the mounting base 2 through the connecting rods 10. Cylinders 11 are provided on both sides below the sleeve plate 9.

[0046] Cylinder 11 pushes the sleeve 9 to slide along the axial direction of the guide rod 6. Since the two sides of the sleeve 9 are firmly connected to the mounting base 2 through the connecting rod 2 10, when the sleeve 9 moves, the connecting rod 2 10 moves synchronously, thereby driving the mounting base 2 to rise and fall smoothly, adjusting the height of the mounting base 2 so that the measuring instrument body 1 can meet the needs of different working environments and different installation positions.

[0047] Working principle:

[0048] First, the measuring instrument body 1 is placed in the fixed plate 3. The electric telescopic rod 5 makes the clamping plate 51 firmly clamp the measuring instrument body 1. When the measuring instrument body 1 is subjected to external vibration or impact, the buffer pad 401 absorbs the vibration energy. When it is transmitted to the fixed plate 402, the connecting rod 403 pushes the slip ring 404 to slide, triggering the inflation valve 405 to inflate the auxiliary air bag 406. The gas enters the pressure air bag 408 quickly through the connecting pipe 407, causing it to expand and press against the measuring instrument body 1, enhancing the buffer protection. Therefore, the clamping plate 51, together with the buffer assembly 4, can firmly fix the measuring instrument body 1 in the fixed plate 3, suppress displacement and shaking, and ensure working stability and measurement accuracy.

[0049] Cylinder 11 pushes sleeve 9 to slide axially along guide rod 6. The movement of sleeve 9 drives connecting rod 10 and causes mounting base 2 to rise and fall, adjusting its height so that the measuring instrument body 1 can adapt to different working environments and installation positions. The upper components are fixed by support column 7 and base 8 to ensure the stability of the device.

[0050] During testing, the staff injects the material into the feed inlet 101, and the material enters the storage hopper 102 through the feed inlet 101. The storage hopper 102 stores the material to ensure a continuous supply of material during the testing process, so as to avoid affecting the continuity of the test due to insufficient material. The material is discharged through the discharge pipe 103 by turning the control valve 104. At this point, the entire process is completed.

[0051] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A stable cement grout flowability measuring device, characterized in that, The device includes a base, a mounting base, and a measuring instrument body. The base and the mounting base are connected in a lifting manner. The mounting base is annular, and the measuring instrument body is located within the mounting base. The measuring instrument body and the mounting base are connected by a circumferentially distributed electric telescopic rod and a buffer pad. A fixed plate is provided on the fixed plate of the electric telescopic rod, and an airbag is provided on the inner side of the fixed plate. After the airbag is inflated, it abuts against the measuring instrument body and is connected to an inflation valve. A slip ring is slidably connected to the fixed plate. The slip ring is connected to the fixed plate by a crank-slider structure. When the slip ring slides, it triggers the opening and closing of the inflation valve.

2. A stabilized cement paste flow consistency measuring device according to claim 1, wherein, The fixed plate is provided with a collar and a groove, and the sliding ring slides in the groove.

3. A stabilized cement paste flow consistency measuring device as defined in claim 1, wherein, The slip ring is connected to a connecting rod, and the other end of the connecting rod is hinged to the fixed plate.

4. A stabilized cement pasteflow consistency measuring device according to claim 3, wherein The slip ring and the connecting rod are symmetrically arranged on both sides of each electric telescopic rod.

5. A stabilized cement paste flow consistency measuring device as defined in claim 1, wherein, The lower part of the mounting base is connected to symmetrically distributed connecting rods two, which are hinged to the same sleeve plate. The sleeve plate is slidably connected to the guide rod, and a cylinder is connected below the sleeve plate. The cylinder is fixed on the base.

6. A stabilized cement pasteflow consistency measuring device according to claim 5, wherein The connecting rod, the sleeve plate, and the cylinder are all provided with two symmetrical sets.

7. A stabilized cement past consistency measuring device as defined in claim 1 wherein, The measuring instrument body includes a feed inlet, a storage hopper, a discharge pipe, and a control valve. The feed inlet is adapted to the clamping plate of the electric telescopic rod.

8. A stabilized cement past consistency measuring device according to claim 1 wherein, The airbag includes an auxiliary airbag, a connecting tube, and a pressure airbag. The auxiliary airbag is connected to the inflation valve. The pressure airbag, after being inflated, abuts against the main body of the measuring instrument. The auxiliary airbag is connected to the pressure airbag through the connecting tube.

9. A stabilized cement pasteflow consistency measuring device according to claim 8, wherein The pressure-reducing airbags are elliptical in shape and spaced apart in the gaps of the electric telescopic rod.

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