CN218036215U - Structural design of digital display resiliometer - Google Patents
Structural design of digital display resiliometer Download PDFInfo
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- CN218036215U CN218036215U CN202221954560.7U CN202221954560U CN218036215U CN 218036215 U CN218036215 U CN 218036215U CN 202221954560 U CN202221954560 U CN 202221954560U CN 218036215 U CN218036215 U CN 218036215U
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Abstract
The utility model discloses a structural design of digital display resiliometer, including the resiliometer body, resiliometer body side-mounting has scale, internally mounted to have the couple pin, it is provided with pointer piece, its characterized in that to slide on the scale: a digital display module assembly is fixedly mounted on the side face of the shell of the resiliometer body and comprises a shell, a main control circuit board, a display screen, a photoelectric displacement sensing module and a Hall element, a grating bar is mounted on the pointer block, and a magnet is mounted on the hook pin; the grating bars correspond to the photoelectric displacement sensing module, the grating bars are pushed to move when the bouncing blocks rebound, and the displacement of the grating bars can be sensed and measured through the photoelectric displacement sensing module, so that the compressive strength of concrete is measured; the Hall element is arranged on the shell of the digital display module, the outer surface of the Hall element is tightly attached to the outer portion of the shell of the resiliometer, and the position of the Hall element corresponds to the position of the hook pin when the hook is unlocked. This patent adds the digital display module assembly on current resiliometer's basis, realizes the digital display.
Description
Technical Field
The utility model relates to a concrete compressive strength check out test set field, the more specifically structural design of digital display resiliometer that says so.
Background
In engineering quality detection, the compressive strength of concrete is an important measurement index in construction engineering. After the concrete of the engineering body is poured to form an entity, the quality of the concrete strength needs to be detected to ensure the engineering quality, and whether the strength grade of the design requirement is met or not is judged.
The rebound method is a nondestructive testing method for testing the compressive strength of concrete. The rebound method is simple and convenient to operate, low in cost and capable of efficiently measuring the strength of the concrete member, the overall strength of the member can be comprehensively known by detecting different concrete partition positions, and the rebound method can be used for most of the concrete members without damaging the members, so that an effective measuring means is provided for quality detection of building engineering. The rebound tester is a main instrument for testing the strength of concrete in modern building engineering based on the principle of rebound method.
The traditional method for measuring the rebound value by the mechanical rebound apparatus is mechanical, and the rebound distance needs to be manually read. The read rebound value is artificially corrected according to the rebound angle and the concrete carbonization depth, and the rebound value of single measurement can be obtained.
The digital display resiliometer is intelligent equipment based on the traditional mechanical resiliometer, measures and displays a rebound value in a sensor sensing mode, and calculates the compressive strength through corresponding correction. The current digital display rebound tester measurement mode in the market is to measure the position of a pointer slide block through a sensor, and a contact measurement method and a non-contact measurement method exist in various methods, for example, in the research of a linear array CCD rebound tester system in the university of fertilizer industry, the contact rebound tester detects the displacement distance of the slide block through a sliding resistor, the measurement precision is higher, but the problems of mechanical abrasion, poor contact, increase of resistance borne by the slide block, reduction of the test precision and the like are easily caused after long-term use.
The non-contact measurement method is usually more excellent than the contact measurement method on the premise of ensuring the precision, the loss in the measurement process can be ignored, and the non-contact measurement method has stronger vibration resistance and is more suitable for a rebound value measurement of a rebound instrument. But the digital display resiliometer in the existing market uses less wireless communication modules, and the wireless communication technology can make the digital display resiliometer thing networking, with data real-time wireless transmission to host computer, be convenient for real-time measurement analysis data.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a structural design of a digital display resiliometer.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a structural design of digital display resiliometer, includes the resiliometer body, resiliometer body side-mounting has scale, internally mounted has the couple pin, the slip is provided with pointer piece, its characterized in that on the scale: the digital display module assembly is fixedly installed on the side face of the shell of the resiliometer body and comprises a shell, a main control circuit board, a display screen, a photoelectric displacement sensing module and a Hall element, wherein the main control circuit board is respectively and electrically connected with the display screen, the photoelectric displacement sensing module and the Hall element; the pointer block is provided with a grating strip, and the hook pin is provided with a magnet; the grating bars correspond to the photoelectric displacement sensing module, the grating bars are pushed to move when the bouncing blocks rebound, and the displacement of the grating bars can be sensed and measured through the photoelectric displacement sensing module, so that the compressive strength of concrete is measured; the Hall element is arranged on the shell of the digital display module, the outer surface of the Hall element is tightly attached to the outer portion of the shell of the resiliometer, the position of the Hall element corresponds to the hook pin when the hook is unlocked, and due to the existence of the magnet, whether the hook pin reaches the unlocking position or not can be determined through the Hall element.
The resiliometer body is composed of a fastening nut, a zero setting screw, a hook pin, a button, a casing, a spring hammer, a tension spring seat, a snap ring, a sealing felt ring, a spring rod, a cap, a buffering pressure spring, a spring tension spring, a graduated scale, a pointer sheet, a pointer block, a central guide rod, a pointer shaft, a guide flange, a hook pressure spring, a pressure spring and a tail cover; the shell of the resiliometer is a cylinder, a central guide rod is positioned at the axis of the cylinder, one end of a spring rod, which is far away from a spring hammer, is solid, the axes of the rest parts of the spring rod and the axis of the spring hammer are provided with a cylindrical hollow part with the diameter larger than that of the central guide rod, the spring hammer and the spring rod are sleeved on the central guide rod, one end of the central guide rod, which is close to a tail cover, is provided with a hook pin, the spring hammer can slide on the central guide rod, a buffer pressure spring is arranged in the spring rod and is connected with the central guide rod, and the central guide rod, the hook pin and the spring rod are fixed together because the buffer pressure spring has a large elastic coefficient, and the three parts can move simultaneously, so the three parts are collectively called as a moving rod.
The elastic hammer is connected with the hook pin, the hook which is used for connecting the two parts is arranged on the hook pin through a hook pressure spring, and the hook can hook the upper part of the elastic hammer under the common condition to connect the hook pin with the elastic hammer.
The rebound tester body is internally provided with a rebound tension spring and a buffering pressure spring, the rebound tension spring is inseparable from the basic principle of the rebound tester, and the read scale of the rebound tester is essentially the elongation of the rebound tension spring; one end of a spring impact tension spring is connected with the spring impact hammer, the other end of the spring impact tension spring is connected with a tension spring seat connected with the machine shell, one end of a pressure spring is fixed on the tail cover, and the other end of the pressure spring is connected with the hook pin; the pressure spring and the hook pin are not mechanically connected, only because the pressure spring is in a compressed state generally, the pressure spring can be tightly attached to the hook pin, when the moving rod moves towards the tail cover direction, the bounce spring is pulled and stretched, and the pressure spring is extruded and compressed by the hook pin.
A fastening nut is arranged at the center of the base on the inner side of the casing and used for fixing a zero setting screw, a graduated scale is arranged on one side of the casing, a pointer block is sleeved on the graduated scale, and the pointer block is connected with a pointer sheet; the other side of the shell is provided with a button.
The utility model discloses a technological effect and advantage:
on the basis of the existing resiliometer, a digital display module assembly is additionally arranged to realize digital display. Namely, a grating bar is arranged on the pointer block, and a magnet is arranged on the hook pin. When the impact block rebounds, the grating bars are pushed to move, and the displacement of the grating bars can be measured through the photoelectric displacement sensing module, so that the compressive strength of concrete is measured; when the hook is unlocked, the Hall element is arranged at the position corresponding to the hook pin, and whether the hook pin reaches the unlocking position or not can be determined through the Hall element due to the existence of the magnet.
Drawings
FIG. 1 is an exploded view of the digital display module and the resiliometer body of the present invention after separation;
FIG. 2 is a schematic structural diagram of a conventional resiliometer body of the apparatus of the present invention;
FIG. 3 is a circuit diagram of a master control circuit module;
FIG. 4 is a circuit diagram of a photoelectric displacement sensing module;
fig. 5 is a circuit diagram of a hall element.
The device comprises a fastening nut 1, a zero setting screw 2, a hook 3, a hook pin 4, a button 5, a casing 6, an elastic hammer 7, a tension spring seat 8, a snap ring 9, a sealing felt ring 10, an elastic rod 11, a cover cap 12, a buffering pressure spring 13, an elastic tension spring 14, a graduated scale 15, a pointer piece 16, a pointer block 17, a central guide rod 18, a pointer shaft 19, a guide flange 20, a hook pressure spring 21, a pressure spring 22, a tail cover 23, a magnet 24, a grating strip 25, a digital display module 26 and a resiliometer body 27.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
A structural design of digital display resiliometer as shown in figure 1, including the resiliometer body, resiliometer body side-mounting has scale 15, internally mounted has couple pin 4, it is provided with pointer piece 17, its characterized in that to slide on the scale: the digital display module assembly is fixedly installed on the side face of the shell of the resiliometer body and comprises a shell, a main control circuit board, a display screen, a photoelectric displacement sensing module and a Hall element, wherein the main control circuit board is respectively and electrically connected with the display screen, the photoelectric displacement sensing module and the Hall element; the pointer block 17 is provided with a grating strip 25, and the hook pin 4 is provided with a magnet 24; the grating bars 25 correspond to the photoelectric displacement sensing module, when the bounce block rebounds, the grating bars 25 are pushed to move, and the displacement of the grating bars 25 can be sensed and measured through the photoelectric displacement sensing module, so that the compressive strength of the concrete is measured; the hall element is installed at a position corresponding to the hook pin 4 when the hook 3 is unlocked, and whether the hook pin 4 reaches the unlocking position can be determined by the hall element due to the presence of the magnet 24.
The resiliometer body 27 as shown in fig. 2 is of a mechanical design of a conventional resiliometer of the prior art. The device comprises a fastening nut 1, a zero setting screw 2, a hook 3, a hook pin 4, a button 5, a casing 6, a spring hammer 7, a tension spring seat 8, a snap ring 9, a sealing felt ring 10, a spring rod 11, a cover cap 12, a buffering pressure spring 13, a spring tension spring 14, a graduated scale 15, a pointer sheet 16, a pointer block 17, a central guide rod 18, a pointer shaft 19, a guide flange 20, a hook pressure spring 21, a pressure spring 22 and a tail cover 23.
The whole resiliometer is roughly in a cylindrical shape, a central guide rod 18 is positioned at the axis of the cylinder, one end of a striking rod 11 far away from a striking hammer 7 is solid, the axis of the rest part of the striking rod 11 and the axis of the striking hammer 7 are provided with a cylindrical hollow part with a slightly larger diameter and the central guide rod 18, the striking hammer 7 and the striking rod 11 are sleeved on the central guide rod 18, one end of the central guide rod 18 close to a tail cover 23 is provided with a hook pin 4, the striking hammer 7 can slide on the central guide rod 18, a buffer pressure spring 13 is arranged inside the striking rod 11 and is connected with the central guide rod 18, the hook pin 4 and the striking rod 11 are almost fixed together due to the large elastic coefficient of the buffer pressure spring 13, and the three parts can move simultaneously, so that the three parts are collectively called moving rods in the following. It should be noted that, in general, the hammer striker 7 is connected to the latch pin 4, and the connecting element for connecting the two components is the latch 3 mounted on the latch pin 4 by the latch compression spring 21, and the latch 3 is hooked on the upper portion of the hammer striker 7 to connect the latch pin 4 and the hammer striker 7.
Two springs with important functions in the resiliometer are a springing tension spring 14 and a compression spring 22, particularly the springing tension spring 14, which are inseparable from the basic principle of the resiliometer, and the read scale of the resiliometer is essentially the elongation of the springing tension spring 14. One end of a spring 14 for spring striking is connected with a spring hammer 7, the other end is connected with a spring seat 8 connected with a casing 6, one end of a pressure spring 22 is fixed on a tail cover 23, and the other end is connected with a hook pin 4. It should be noted that the pressure spring 22 is not mechanically connected with the hook pin 4, but the pressure spring 22 is in a compressed state generally, so the pressure spring 22 is tightly attached to the hook pin 4, when the moving rod moves towards the tail cover 23, the spring for spring striking is pulled and stretched, and the pressure spring 22 is extruded and compressed by the hook pin 4.
The measuring device is characterized in that a fastening nut 1 is installed in the center of a base of a machine shell 6, the fastening nut 1 is used for fixing a zero adjusting screw 2, a graduated scale 15 is installed on one side of the machine shell 6, a pointer block 17 is sleeved on the graduated scale 15, and the pointer block 17 is connected with a pointer piece 16. The other side of the housing 6 is provided with a button 5.
When the compression strength of concrete is measured, a machine shell 6 needs to be held, a striking rod 11 is abutted against the surface of the concrete, a force perpendicular to the surface of the concrete is gradually applied, so that the moving rod moves towards a tail cover 23, due to the existence of a hook 3, a striking hammer 7 can cling to the pin of the hook 3 and move towards the tail cover 23, a pressure spring 22 can be gradually compressed, a striking tension spring 14 can be gradually stretched until the hook 3 touches a zero-setting screw 2, the zero-setting screw 2 can press the hook 3 to enable a hook pressure spring 21 to rotate to unlock the striking hammer 7, at this time, the striking hammer 7 can rapidly get away from the tail cover 23 due to the traction of a striking tension spring 14, the moving rod abuts against the surface of the concrete, even if the striking rod is kept still by the thrust of the pressure spring 22, after the striking rod 11 is collided by the striking hammer 7, the striking hammer 7 rebounds, when rebounds, a pointer piece 16 is pushed, a pointer block 17 is further pushed, the strength of the concrete is read by reading the position of a graduated scale 15 where the pointer block 17 is located, at this time, the force applied is gradually reduced, the moving hammer 22 pushes the moving pointer block 7 to move towards the tail cover 23, and the striking hammer 4, so that the striking hammer 4 can move towards the tail cover 23, and the tail cover 4, and the striking hammer 4 can move once, and the measuring of the measuring is completed. When the resiliometer is not used, the force applied by the rebound hammer 7 is not reduced, and the button 5 is pressed, so that the button 5 can block the hook pin 4, thereby fixing the movable rod.
The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a structural design of digital display resiliometer, includes the resiliometer body, resiliometer body side-mounting has scale, internally mounted to have the couple pin, it is provided with pointer piece, its characterized in that to slide on the scale: a digital display module assembly is fixedly mounted on the side face of the shell of the resiliometer body and comprises a shell, a main control circuit board, a display screen, a photoelectric displacement sensing module and a Hall element, a grating bar is mounted on the pointer block, and a magnet is mounted on the hook pin; the grating bars correspond to the photoelectric displacement sensing module, the grating bars are pushed to move when the bouncing blocks rebound, and the displacement of the grating bars can be sensed and measured through the photoelectric displacement sensing module, so that the compressive strength of concrete is measured; the Hall element is arranged on the shell of the digital display module, the outer surface of the Hall element is tightly attached to the outer portion of the shell of the resiliometer, and the position of the Hall element corresponds to the position of the hook pin when the hook is unlocked.
2. The digital display resiliometer structural design according to claim 1, wherein: the resiliometer body is composed of a fastening nut, a zero setting screw, a hook pin, a button, a casing, a spring hammer, a tension spring seat, a snap ring, a sealing felt ring, a spring rod, a cap, a buffering pressure spring, a spring tension spring, a graduated scale, a pointer sheet, a pointer block, a central guide rod, a pointer shaft, a guide flange, a hook pressure spring, a pressure spring and a tail cover; the shell of the resiliometer is a cylinder, a central guide rod is positioned at the axis of the cylinder, one end of a spring rod, which is far away from a spring hammer, is solid, the axes of the rest parts of the spring rod and the axis of the spring hammer are provided with a cylindrical hollow part with the diameter larger than that of the central guide rod, the spring hammer and the spring rod are sleeved on the central guide rod, one end of the central guide rod, which is close to a tail cover, is provided with a hook pin, the spring hammer can slide on the central guide rod, a buffer pressure spring is arranged in the spring rod and is connected with the central guide rod, and the central guide rod, the hook pin and the spring rod are fixed together because the buffer pressure spring has a large elastic coefficient, and the three parts can move simultaneously, so the three parts are collectively called as a moving rod.
3. A digital display resiliometer structural design according to claim 2, wherein: the elastic hammer is connected with the hook pin, the object responsible for connecting the two parts is a hook arranged on the hook pin through a hook pressure spring, and the hook can hook the upper part of the elastic hammer under the common condition to connect the hook pin with the elastic hammer.
4. The digital display resiliometer structural design according to claim 2, wherein: the rebound tester body is internally provided with a rebound tension spring and a buffering pressure spring, the rebound tension spring is inseparable from the basic principle of the rebound tester, and the read scale of the rebound tester is essentially the elongation of the rebound tension spring; one end of the spring is connected with the spring hammer, the other end of the spring is connected with a spring seat connected with the shell, one end of a pressure spring is fixed on the tail cover, and the other end of the pressure spring is connected with the hook pin; the pressure spring and the hook pin are not mechanically connected, only because the pressure spring is in a compressed state generally, the pressure spring can be tightly attached to the hook pin, when the moving rod moves towards the tail cover direction, the bounce spring is pulled and stretched, and the pressure spring is extruded and compressed by the hook pin.
5. The digital display resiliometer structural design according to claim 2, wherein: a fastening nut is arranged at the center of the base on the inner side of the casing and used for fixing a zero setting screw, a graduated scale is arranged on one side of the casing, a pointer block is sleeved on the graduated scale, and the pointer block is connected with a pointer sheet; the other side of the shell is provided with a button.
6. The structural design of a digital display resiliometer according to claim 1, wherein: the master control circuit board is respectively and electrically connected with the display screen, the photoelectric displacement sensing module and the Hall element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221954560.7U CN218036215U (en) | 2022-07-27 | 2022-07-27 | Structural design of digital display resiliometer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221954560.7U CN218036215U (en) | 2022-07-27 | 2022-07-27 | Structural design of digital display resiliometer |
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| Publication Number | Publication Date |
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| CN218036215U true CN218036215U (en) | 2022-12-13 |
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| CN202221954560.7U Active CN218036215U (en) | 2022-07-27 | 2022-07-27 | Structural design of digital display resiliometer |
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- 2022-07-27 CN CN202221954560.7U patent/CN218036215U/en active Active
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