CN218937999U - Simple and easy compressive strength testing arrangement of structural adhesive - Google Patents
Simple and easy compressive strength testing arrangement of structural adhesive Download PDFInfo
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- CN218937999U CN218937999U CN202223052134.7U CN202223052134U CN218937999U CN 218937999 U CN218937999 U CN 218937999U CN 202223052134 U CN202223052134 U CN 202223052134U CN 218937999 U CN218937999 U CN 218937999U
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Abstract
The utility model discloses a simple compressive strength testing device for structural adhesive, which comprises a power transmission system, a pressure sensor and a pressure sensor, wherein the power transmission system comprises a jacking device; a digital display meter which reads the jacking force of the jacking device; the structural support comprises a plurality of connecting rods which are circumferentially arranged outside the jacking device; the force bearing plate and the fixing plate are horizontally sleeved on the connecting rod and are positioned above the jacking device, and the force bearing plate is positioned below the fixing plate and is in sliding connection with the connecting rod; the stress plate sleeve is correspondingly sleeved on the connecting rod and is in threaded connection with the connecting rod, and the stress plate sleeve supports the bottom surface of the stress plate; the structural adhesive test piece is matched and clamped between the stress plate and the fixed plate. According to the utility model, the limit and the pressurization of the structural adhesive test piece are realized through the cooperation of the force transmission system and the structural support, the height and the levelness of the stress plate are adjusted through the sleeve, the pressurization reliability is ensured, the on-site rapid measurement of the compressive strength of the structural adhesive is realized, and the problems of high cost and low efficiency of the conventional detection of the compressive strength of the adhesive are solved.
Description
Technical Field
The utility model relates to the technical field of building maintenance and reinforcement. More particularly, the utility model relates to a simple compressive strength testing device for structural adhesive.
Background
After building the building structure (such as house, bridge, etc.), it needs to take necessary maintenance, repair, etc. for a long time and continuously to improve or raise the existing condition of the building structure, so as to keep the building structure in good functional state. The construction structure maintenance and reinforcement operation generally uses structural adhesive (such as steel adhesive, steel pouring adhesive, sealing adhesive and the like) to maintain and reinforce the damaged part, in the construction process, the strength state of the structural adhesive is difficult to accurately grasp due to the influence of environmental factors such as external climate, temperature, humidity and the like, and particularly for the structural adhesive used at a main stressed structure, if the strength state of the structural adhesive cannot be confirmed, the starting time of the subsequent working procedure is likely to be influenced, the construction progress is dragged slowly, the construction quality is difficult to control, and the safety of the structure also causes great risks.
The colloid performance indexes include tensile strength, compressive strength, elastic modulus and the like, and other strength conditions and the solidification state of the colloid can be calculated through the compressive strength value. In order to ensure the safety of the construction structure, a colloid test piece under the same maintenance condition is usually sent to a related detection unit for detection during site construction until the detection strength reaches the standard required strength, and then the follow-up work can be carried out. If the geographical position of the construction site is remote, the construction project department can build a laboratory and be equipped with related equipment and personnel, so that the construction cost is greatly increased and the practicability is not high; if the measure of checking is taken for the related detection units, a lot of checking is needed, a lot of manpower and financial resources are wasted, and the construction progress is seriously influenced while the project cost is increased.
In order to solve the problems, a simple compressive strength testing device for structural adhesive is required to be designed, so that the compressive strength of the structural adhesive can be measured efficiently and reliably, and the construction safety is ensured.
Disclosure of Invention
The utility model aims to provide a simple compressive strength testing device for structural adhesive, which realizes the limit and pressurization of a structural adhesive test piece through the cooperation of a force transmission system and a structural support, and realizes the adjustment of the height and levelness of a stress plate between the structural adhesive test piece and a jacking device through a stress plate sleeve, thereby realizing the on-site rapid measurement of the compressive strength of the structural adhesive under the condition of ensuring the reliability of pressurization, and solving the problems of high detection cost and long time of the compressive strength of the adhesive in the existing testing mode.
To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided a simple compressive strength testing apparatus for structural adhesives, comprising:
the force transmission system comprises a jacking device which is vertically arranged, and a pushing end is positioned at the top; the digital display meter is used for reading the jacking force of the jacking device;
the structure bracket comprises a plurality of connecting rods which are arranged at the outer side of the jacking device at intervals along the circumferential direction, and any connecting rod is vertically arranged on the ground; the stress plates and the fixing plates are horizontally sleeved on the connecting rods and are positioned above the jacking device, and the stress plates are arranged below the fixing plates at intervals and are in sliding connection with the connecting rods; the plurality of stress plate sleeves are correspondingly sleeved on the plurality of connecting rods and are in threaded connection with the connecting rods, and any stress plate sleeve supports the bottom surface of the stress plate and controls the bottom surface to be abutted with the pushing end of the jacking device;
wherein, the structural adhesive test piece is matched and clamped between the stress plate and the fixed plate.
Preferably, the simple compressive strength testing device for the structural adhesive is a hydraulic cylinder, the power transmission system further comprises a hydraulic pump, the output end of the hydraulic pump is communicated with the input end of the hydraulic cylinder through a pressure pipe, and the digital display meter is arranged at the pipeline joint of the hydraulic pump and the pressure pipe.
Preferably, the simple compressive strength testing device for the structural adhesive is characterized in that the plurality of connecting rods are at least three connecting rods.
Preferably, the simple compressive strength testing device for structural adhesive, the fixing plate is slidably connected with the connecting rods, the structural support further comprises a plurality of fixing plate sleeves, the fixing plate sleeves are correspondingly sleeved on the connecting rods and are in threaded connection with the connecting rods, and any fixing plate sleeve comprises two limit sleeves which are respectively arranged on the top surface and the bottom surface of the fixing plate and compress the fixing plate inwards.
Preferably, the simple compressive strength testing device for the structural adhesive further comprises a bottom supporting plate which is horizontally sleeved on the connecting rods and supported at the bottom of the jacking device.
Preferably, the simple compressive strength testing device for the structural adhesive, the bottom support plate is in sliding connection with the connecting rods, the structural support further comprises a plurality of bottom support plate sleeves, the plurality of bottom support plate sleeves are correspondingly sleeved on the plurality of connecting rods and are in threaded connection with the plurality of connecting rods, and any bottom support plate sleeve supports the bottom surface of the bottom support plate.
Preferably, the simple compressive strength testing device for the structural adhesive is characterized in that a structural adhesive test piece is arranged in the middle of the stress plate, and the center line of the structural adhesive test piece coincides with the axis of the pushing end of the jacking device.
The utility model at least comprises the following beneficial effects:
1. according to the utility model, the limit and pressurization of the structural adhesive test piece are realized through the cooperation of the force transmission system and the structural support, the height and levelness adjustment of the stress plate between the structural adhesive test piece and the jacking device are realized through the stress plate sleeve, the quick measurement of the compressive strength of the structural adhesive is realized under the condition of ensuring the reliability of pressurization, and the simple compressive strength test device for the structural adhesive can be directly arranged on a construction site to measure the compressive strength of the adhesive under the same maintenance condition as the structural adhesive to be constructed at any time, so that the strength state of the structural adhesive used in construction can be conveniently judged in real time, and the problems of high cost and long time for detecting the compressive strength of the adhesive in the conventional test mode are solved;
2. the simple structural adhesive compressive strength testing device is simple in structure, convenient to manufacture, low in cost, convenient to install and detach and easy to carry, can be suitable for detecting the compressive strength of structural adhesives with different projects and different sizes, is simple to operate, is not limited by external environmental factors such as time, region and the like when in use, is wide in application range, effectively improves the detection efficiency of the compressive strength of the structural adhesives, and further ensures the construction efficiency.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
Fig. 1 is a schematic structural diagram of a simple compressive strength testing device for structural adhesive according to an embodiment of the present utility model.
Reference numerals illustrate:
1. a manual pump; 2. a hydraulic cylinder; 3. a pressure pipe; 4. a digital display table; 5. a fixing plate; 6. a pressure plate; 7. a bottom support plate; 8. a connecting rod; 9. a bottom pallet sleeve; 10. a pressure plate sleeve; 11. and fixing the plate sleeve.
Detailed Description
The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.
It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are all conventional methods, and the reagents and materials, unless otherwise specified, are all commercially available; in the description of the present utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model.
As shown in fig. 1, the utility model provides a simple compressive strength testing device for structural adhesive, comprising:
the force transmission system comprises a jacking device which is vertically arranged, and a pushing end is positioned at the top; the digital display meter is used for reading the jacking force of the jacking device;
the structure bracket comprises a plurality of connecting rods which are arranged at the outer side of the jacking device at intervals along the circumferential direction, and any connecting rod is vertically arranged on the ground; the stress plates and the fixing plates are horizontally sleeved on the connecting rods and are positioned above the jacking device, and the stress plates are arranged below the fixing plates at intervals and are in sliding connection with the connecting rods; the plurality of stress plate sleeves are correspondingly sleeved on the plurality of connecting rods and are in threaded connection with the connecting rods, and any stress plate sleeve supports the bottom surface of the stress plate and controls the bottom surface to be abutted with the pushing end of the jacking device;
wherein, the structural adhesive test piece is matched and clamped between the stress plate and the fixed plate.
In the above technical scheme, as shown in fig. 1, a is a structural adhesive test piece, in the construction process, a structural adhesive finished product under the same curing condition as the structural adhesive to be constructed is selected as a test piece for compressive strength test, and the data obtained by the test can be used as an effective reference for judging the strength condition of the structural adhesive to be constructed. The jacking device is a common linear jacking mechanism, the jacking force of the jacking device can be read or displayed through an instrument (digital display meter), and a driving mechanism (power source) of the jacking device can be arranged on one side of the jacking device and does not interfere with the structural support. The three-dimensional frame structure that the structural support is constituteed for a plurality of connecting rods and horizontal plate (atress board and fixed plate), and its whole cover is established in the jacking device outside and is supported subaerial at the interior detection zone of construction area, and atress board and fixed plate all are located the jacking device top, and the high accessible atress board sleeve of atress board is adjusted, all sets up at the atress board sleeve on each connecting rod, and the connecting rod is the screw rod, is equipped with continuous long screw thread along the direction of height on its lateral wall, the telescopic internal thread of atress board with screw rod screw-thread fit connection. Specifically, when the structural support is assembled, the stress plate and the corresponding sleeve are installed according to the height of the pushing end of the jacking device, the height position of the stress plate is adjusted by rotating the stress plate sleeve, the stress plate is in a horizontal state, the bottom surface of the stress plate is abutted with the pushing end of the jacking device, then the structural adhesive test piece is placed on the top surface of the stress plate, after the structural adhesive test piece is placed, the fixing plate is sleeved into the connecting rod and fixed at the designed height position, the bottom surface of the fixing plate is abutted with the top surface of the structural adhesive test piece, and thus the preparation work before the compressive strength test is completed. When the structural adhesive test piece is tested, the jacking device is started, the pushing end of the structural adhesive test piece is pushed upwards to push the stressed plate in a pressurizing mode, the state of the structural adhesive test piece is observed in real time, pushing is stopped when damage or irrecoverable deformation occurs, the pressure value (digital display meter reading) at the moment is recorded, the compressive strength of the structural adhesive test piece can be calculated through a pressure calculation formula by combining the cross section area of the structural adhesive test piece, and the compressive strength is used as the strength condition reference of the structural adhesive to be constructed. Because the sleeve of the stress plate is supported on the bottom surface of the stress plate, the pressure applied to the stress plate in the upward pushing process of the jacking device cannot be influenced.
According to the utility model, the limit and the pressurization of the structural adhesive test piece are realized through the cooperation of the force transmission system and the structural support, the levelness adjustment of the stress plate between the structural adhesive test piece and the jacking device is realized through the stress plate sleeve, the quick measurement of the compressive strength of the structural adhesive is realized under the condition of ensuring the reliability of pressurization, and the simple compressive strength test device for the structural adhesive can be directly arranged on a construction site to measure the compressive strength of the adhesive under the same maintenance condition as the structural adhesive to be constructed at any time, so that the strength state of the structural adhesive used in construction can be conveniently judged in real time, and the problems of high detection cost and long time of the compressive strength of the adhesive in the conventional test mode are solved.
In another technical scheme, the simple compressive strength testing device for the structural adhesive is a hydraulic cylinder, the power transmission system further comprises a hydraulic pump, the output end of the hydraulic pump is communicated with the input end of the hydraulic cylinder through a pressure pipe, and the digital display meter is arranged at the pipeline joint of the hydraulic pump and the pressure pipe. The hydraulic system adopts a manual hydraulic jack (the jacking device is a hydraulic cylinder and the hydraulic pump is a manual pump) commonly used in a construction site, namely, the hydraulic cylinder is matched with the manual pump to pressurize, the testing end of the digital display meter is communicated with the output end pipeline of the hydraulic pump, and the real-time pressure output by the hydraulic pump in the pressurizing process can be effectively measured. The power transmission system is manufactured by conventional equipment on a construction site, has a simple structure, is convenient to assemble and disassemble, and effectively saves the test cost.
In another technical scheme, the simple compressive strength testing device for the structural adhesive is characterized in that the plurality of connecting rods are at least three connecting rods. Wherein, at least three connecting rods support atress board and fixed plate along circumference, form relatively stable whole atress structure subaerial, guarantee in the measurement process simple and easy compressive strength testing arrangement's of structural adhesive stability, and then guarantee measuring result reliability.
In another technical scheme, the simple compressive strength testing device for the structural adhesive, the fixing plate is in sliding connection with the connecting rods, the structural support further comprises a plurality of fixing plate sleeves which are correspondingly sleeved on the connecting rods and are in threaded connection with the connecting rods, and any fixing plate sleeve comprises two limit sleeves which are respectively arranged on the top surface and the bottom surface of the fixing plate and are internally pressed on the fixing plate. Among the above-mentioned technical scheme, the fixed plate also with connecting rod sliding connection, but height position and levelness of fixed plate on the connecting rod are adjusted through the fixed plate sleeve, two limit sleeve's internal thread all is connected with the external screw thread cooperation of connecting rod to, after the fixed plate is adjusted to suitable height position, the mode that the accessible was screwed up relatively uses two limit sleeve to lock the fixed plate on the connecting rod, guarantees that the fixed plate can maintain the location stability in the measurement process, guarantees that below jacking device is to the stability and the test data accuracy of structural adhesive pressurization. In addition, when the test of the current structural adhesive test piece is finished and the test piece needs to be replaced for the next round of test, the jacking device can be reset firstly, the stress plate also falls back onto the stress plate sleeve, then the limiting sleeve is loosened and the fixing plate is adjusted to move upwards, the structural adhesive test piece after the test is finished can be conveniently taken out, the next structural adhesive test piece to be tested is put into the structural adhesive test piece, and the height of the fixing plate is adjusted according to the structure of the new test piece so that the structural adhesive test piece is suitable for the size of the new test piece. The flexible regulation of fixed plate position makes simple and easy compressive strength testing arrangement of structural adhesive can be applicable to different engineering, not unidimensional structural adhesive compressive strength and detect, and application scope is wide, and need not carry out the dismouting repeatedly to the subassembly, has effectively improved structural adhesive compressive strength's detection efficiency, and then guarantees the efficiency of construction.
In another technical scheme, the simple compressive strength testing device for the structural adhesive, the structural support further comprises a bottom supporting plate which is horizontally sleeved on the connecting rods and supported at the bottom of the jacking device. Therefore, the jacking device and the structural support are better integrated, and the problems of unstable pressurization and the like of the jacking device caused by external factors such as uneven ground on a construction site are avoided; meanwhile, the jacking device is correspondingly clamped between the stress plate and the bottom supporting plate, so that the stability of the jacking device in the testing (pressurizing) process is further ensured, and the reliability and the accuracy of the testing result are ensured.
In another technical scheme, the simple compressive strength testing device for the structural adhesive, the bottom support plate is in sliding connection with the connecting rods, the structural support further comprises a plurality of bottom support plate sleeves, the bottom support plate sleeves are correspondingly sleeved on the connecting rods and are in threaded connection with the connecting rods, and any bottom support plate sleeve supports the bottom surface of the bottom support plate. According to the technical scheme, the bottom support plate sleeve is arranged at the bottom of the bottom support plate and used for supporting, the set height and levelness of the jacking device can be flexibly adjusted, the corresponding plate is adjusted to be in a horizontal state through the sleeves before pressurization, the pressurization stability can be improved to the greatest extent, and the real and reliable compression strength data of the structural adhesive test piece obtained through final testing are ensured.
In another technical scheme, the simple compressive strength testing device for the structural adhesive is characterized in that a structural adhesive test piece is arranged in the middle of the stress plate, and the center line of the structural adhesive test piece coincides with the axis of the pushing end of the jacking device. In the technical scheme, when the structural adhesive test piece is placed, the structural adhesive test piece is arranged in the middle of the stress plate (at the central position), and meanwhile, the pushing end of the jacking device is also aligned to the central position of the stress plate (namely, the center line of the structural adhesive test piece is coincident with the axis of the pushing end of the jacking device), so that when the pushing end of the jacking device pushes upwards, the bottom of the structural adhesive is uniformly stressed, and the problem of inaccurate strength test results caused by overlarge local stress or instability is effectively avoided.
In this embodiment, the application method of the simple compressive strength testing device for structural adhesive is as follows:
s1, assembling a simple compressive strength testing device for structural adhesive, placing a structural adhesive test piece (namely the structural adhesive which is prepared under the same maintenance condition with the structural adhesive to be constructed) in the middle of the top surface of a stress plate, and then respectively adjusting the relative heights of the bottom support plate, the stress plate and the fixed plate through a bottom support plate sleeve, a stress plate sleeve and a fixed plate sleeve, wherein the pushing end of a jacking device (a hydraulic cylinder) is abutted to the bottom surface of the stress plate under the condition of not interfering with construction field equipment, the top surface of the structural adhesive test piece is abutted to the bottom surface of the fixed plate, and the bottom surface of the structural adhesive test piece is abutted to the top surface of the stress plate; after the height adjustment is finished, the corresponding plate is adjusted to be in a horizontal state by using the sleeves, after the leveling is finished, the bottom support plate sleeve and the stress plate sleeve are respectively supported at the bottoms of the bottom support plate and the stress plate, and the fixing plate sleeve locks the fixing plate at the fixed height position of the connecting rod;
s2, pressurizing a hydraulic pump (a manual pump) to enable an inner cylinder (pushing end) of the hydraulic cylinder to jack up the stress plate, wherein the structural adhesive test piece is clamped between the stress plate and the fixed plate in a fitting manner, which is equivalent to uniformly loading (pressurizing) the structural adhesive from below through the stress plate by the hydraulic cylinder;
s3, carrying out graded loading on the hydraulic cylinder through a manual pump, observing the appearance change condition of the structural adhesive test piece A in real time in the pressurizing process, stopping the pressurizing of the manual pump when the structural adhesive test piece is damaged or irrecoverable to deform, and recording the pressure value F of the digital display meter at the moment;
and S4, calculating according to the cross-sectional area (bottom surface area S) of the structural adhesive test piece (before applying pressure) and combining a pressure calculation formula p=F/S to obtain the compressive strength value of the structural adhesive test piece, namely the compressive strength value of the structural adhesive to be constructed.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (7)
1. Simple and easy compressive strength testing arrangement of structural adhesive, its characterized in that includes:
the force transmission system comprises a jacking device which is vertically arranged, and a pushing end is positioned at the top; the digital display meter is used for reading the jacking force of the jacking device;
the structure bracket comprises a plurality of connecting rods which are arranged at the outer side of the jacking device at intervals along the circumferential direction, and any connecting rod is vertically arranged on the ground; the stress plates and the fixing plates are horizontally sleeved on the connecting rods and are positioned above the jacking device, and the stress plates are arranged below the fixing plates at intervals and are in sliding connection with the connecting rods; the plurality of stress plate sleeves are correspondingly sleeved on the plurality of connecting rods and are in threaded connection with the connecting rods, and any stress plate sleeve supports the bottom surface of the stress plate and controls the bottom surface to be abutted with the pushing end of the jacking device;
wherein, the structural adhesive test piece is matched and clamped between the stress plate and the fixed plate.
2. The simple and easy compressive strength testing device of structural adhesive according to claim 1, wherein the jacking device is a hydraulic cylinder, the power transmission system further comprises a hydraulic pump, an output end of the hydraulic pump is communicated with an input end of the hydraulic cylinder through a pressure pipe, and the digital display meter is arranged at a pipeline joint of the hydraulic pump and the pressure pipe.
3. The structural adhesive simple compressive strength testing device according to claim 1, wherein the plurality of connecting rods is at least three connecting rods.
4. The structural adhesive simple compressive strength testing device according to claim 1, wherein the fixing plate is slidably connected with the connecting rods, the structural support further comprises a plurality of fixing plate sleeves correspondingly sleeved on the plurality of connecting rods and in threaded connection with the plurality of connecting rods, and any fixing plate sleeve comprises two limit sleeves which are respectively arranged on the top surface and the bottom surface of the fixing plate and compress the fixing plate inwards.
5. The structural adhesive simple compressive strength testing device according to claim 1, wherein the structural support further comprises a bottom support plate horizontally sleeved on the plurality of connecting rods and supported at the bottom of the jacking device.
6. The device for testing the simple compressive strength of structural adhesive according to claim 5, wherein the bottom support plate is slidably connected to the connecting rods, the structural support further comprises a plurality of bottom support plate sleeves correspondingly sleeved on the plurality of connecting rods and in threaded connection with the plurality of connecting rods, and any bottom support plate sleeve supports the bottom surface of the bottom support plate.
7. The simple structural adhesive compressive strength testing device according to claim 1, wherein a structural adhesive test piece is arranged in the middle of the stress plate, and a perpendicular bisector of the structural adhesive test piece coincides with the axis of the pushing end of the jacking device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223052134.7U CN218937999U (en) | 2022-11-15 | 2022-11-15 | Simple and easy compressive strength testing arrangement of structural adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223052134.7U CN218937999U (en) | 2022-11-15 | 2022-11-15 | Simple and easy compressive strength testing arrangement of structural adhesive |
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| Publication Number | Publication Date |
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| CN218937999U true CN218937999U (en) | 2023-04-28 |
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| CN202223052134.7U Active CN218937999U (en) | 2022-11-15 | 2022-11-15 | Simple and easy compressive strength testing arrangement of structural adhesive |
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| CN (1) | CN218937999U (en) |
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