CN219084567U - Auxiliary fixing tool for concrete compression-resistant elastic mold test - Google Patents
Auxiliary fixing tool for concrete compression-resistant elastic mold test Download PDFInfo
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- CN219084567U CN219084567U CN202223189996.4U CN202223189996U CN219084567U CN 219084567 U CN219084567 U CN 219084567U CN 202223189996 U CN202223189996 U CN 202223189996U CN 219084567 U CN219084567 U CN 219084567U
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Abstract
The utility model discloses an auxiliary fixing tool for a concrete compression-resistant elastic modulus test, which comprises annular frame bodies positioned on the upper side and the lower side of a concrete test block, wherein screw holes for penetrating a tightening screw rod are formed in the annular frame bodies; according to the utility model, the detachable annular frame body is designed, so that the annular frame body can be quickly detached in advance after the deformation value is recorded for the last time in a test, the problem of deformation of the annular frame body caused by excessive impact force is avoided, and meanwhile, the U-shaped bracket is designed, so that the disassembly and assembly process of the dial indicator is also facilitated.
Description
Technical Field
The utility model relates to the technical field of concrete compression-resistant elastic mold tests, in particular to an auxiliary fixing tool for a concrete compression-resistant elastic mold test.
Background
The modulus of elasticity is an important mechanical property of concrete, it reflects the relation between the stress applied to the concrete and the deformation produced, and is one of the parameters necessary for calculating the deformation, crack and crack of reinforced concrete structure and the temperature stress of bulk concrete. The existing test method for detecting the compressive elastic modulus of concrete is to fix a test block by utilizing a micro-deformation measuring instrument fixing frame, erect dial indicators on two sides of a test piece, and place the test block on a universal material testing machine for compressive detection after leveling and fixing. At present, the micro-deformation measuring instrument fixing frame is of an annular or frame type integral structure, a crushing step is provided before the test is completed, if the strength of a test piece is too high, the test piece is easy to crack and crush during compression resistance, the impact force is easy to cause deformation of the annular structure meter frame part, the reading of the dial indicator is inaccurate, and the test data is doubtful.
Disclosure of Invention
The utility model aims to overcome the defects, and provides an auxiliary fixing tool for a concrete compression-resistant elastic mold test, which can be used for quickly pre-disassembling an annular frame body after the deformation value is recorded for the last time in the test, so that the problem of deformation of the annular frame body caused by excessive impact force is avoided.
The utility model aims to solve the technical problems, and adopts the technical scheme that: the utility model provides a concrete resistance to compression elastic modulus test auxiliary fixture, is including the annular support body that is located concrete test block upside and downside, offer the screw that is used for wearing to establish tight screw rod on the annular support body, be located the annular support body of upside and be located and set up the amesdial between the annular support body of downside, the annular support body includes two semi-annular frames, and two semi-annular frame contact positions all are equipped with mutually supporting ladder, have offered the screw of wearing to set up the limit screw rod in the ladder.
Preferably, 4 screw holes for penetrating the tightening screw are symmetrically formed in the annular frame body.
Preferably, dial gauges are arranged on two sides between the annular frame body positioned on the upper side and the annular frame body positioned on the lower side.
Preferably, the dead lever at amesdial top wears to locate U type support bottom, U type support top is connected with the annular support body that is located the upside through fixing screw.
Preferably, the fixing rod is matched with the vertical through hole at the bottom of the U-shaped bracket, a transverse screw hole communicated with the vertical through hole is formed in the side part of the U-shaped bracket, and a limit screw matched with the screw thread is arranged in the transverse screw hole.
Preferably, the top of the U-shaped bracket is provided with a vertical screw hole in threaded fit with a fixing screw, the annular bracket body on the upper side is provided with a through hole, and the surface of the fixing screw is provided with a fixing nut in threaded fit with the fixing screw.
The utility model has the beneficial effects that:
according to the utility model, the detachable annular frame body is designed, so that the annular frame body can be quickly detached in advance after the deformation value is recorded for the last time in a test, the problem of deformation of the annular frame body caused by excessive impact force is avoided, and meanwhile, the U-shaped bracket is designed, so that the disassembly and assembly process of the dial indicator is also facilitated.
Drawings
FIG. 1 is a schematic perspective view of an auxiliary fixing tool for a concrete compression-resistant elastic mold test;
FIG. 2 is a schematic view of an exploded view of the connection area between the dial indicator and the U-shaped bracket in FIG. 1;
fig. 3 is a schematic top view of fig. 1.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the specific examples.
As shown in fig. 1 to 3, an auxiliary fixing tool for a concrete compression-resistant elastic modulus test comprises an annular frame body 2 positioned on the upper side and the lower side of a concrete test block 1, a screw hole for penetrating a tightening screw 3 is formed in the annular frame body 2, a dial indicator 4 is arranged between the annular frame body 2 positioned on the upper side and the annular frame body 2 positioned on the lower side, the annular frame body 2 comprises two semi-annular frames 2.1, mutually matched steps 2.2 are arranged at contact positions of the two semi-annular frames 2.1, and a screw hole penetrating a limit screw 2.3 is formed in each step 2.2. After the deformation value is recorded for the last time in the test, the two semi-annular frames 2.1 of the annular frame body 2 can be transversely separated by rotating and screwing the limiting screw rods 2.3, the annular frame body is quickly detached in advance, and the problem that the annular frame body deforms due to overlarge impact force in the subsequent process is avoided.
Preferably, 4 screw holes for penetrating the tightening screw 3 are symmetrically formed in the annular frame body 2. By screwing four tightening screws 3 in, the side surface of the concrete test block 1 can be completely tightened and fixed.
Preferably, dial indicators 4 are arranged on two sides between the annular frame body 2 positioned on the upper side and the annular frame body 2 positioned on the lower side.
Preferably, the fixed rod 4.1 at the top of the dial indicator 4 is arranged at the bottom of the U-shaped bracket 5 in a penetrating way, and the top of the U-shaped bracket 5 is connected with the annular frame body 2 positioned at the upper side through the fixed screw 6. In this embodiment, through setting up U type support, can install amesdial 4 fast and conveniently, its dismouting process is simple, quick.
Preferably, the fixing rod 4.1 is matched with a vertical through hole 5.1 at the bottom of the U-shaped bracket 5, a transverse screw hole 5.2 communicated with the vertical through hole 5.1 is formed in the side part of the U-shaped bracket 5, and a limit screw 5.3 in threaded fit with the transverse screw hole 5.2 is arranged in the transverse screw hole 5.2. In this embodiment, when the dial indicator 4 is installed, the fixing rod 4.1 on the upper side of the dial indicator 4 can firstly penetrate into the vertical through hole 5.1 at the bottom of the U-shaped bracket 5, then the limit screw 5.3 is screwed into the transverse screw hole 5.2 from the side, so that the fixing rod 4.1 in the vertical through hole 5.1 is tightly propped up, and then the top of the U-shaped bracket 5 is connected with the annular bracket body 2 on the upper side.
Preferably, a vertical screw hole 5.4 in threaded fit with the fixing screw 6 is formed in the top of the U-shaped support 5, a through hole is formed in the annular support body 2 located on the upper side, and a fixing nut 6.1 in threaded fit with the fixing screw 6 is arranged on the surface of the fixing screw 6. In this embodiment, the vertical screw hole at the top of the U-shaped bracket 5 may be first brought into contact with and aligned with the through hole area of the upper annular frame 2, then the fixing screw 6 is screwed into the vertical screw hole 5.4 from top to bottom, and finally the fixing nut 6.1 is screwed onto the surface of the fixing screw 6, so that the fixing screw 6 is fixed in position.
The working principle of the embodiment is as follows:
before the test starts, two semi-annular frames 2.1 of the annular frame body 2 are transversely butted respectively so that the steps 2.2 of the semi-annular frames are in contact fit with each other, and then the semi-annular frames are rotationally screwed into limit screws 2.3, so that a complete annular frame body 2 is formed, and after the installation of the annular frame bodies 2 on the upper side and the lower side is completed, the four jacking screws 3 are rotationally screwed into the annular frame body, so that the concrete test block 1 can be completely fixed; when the dial indicator 4 is installed, the fixing rod 4.1 on the upper side of the dial indicator 4 can firstly penetrate upwards into the vertical through hole 5.1 at the bottom of the U-shaped bracket 5, then the limit screw 5.3 is screwed into the transverse screw hole 5.2 from the side part, so that the fixing rod 4.1 in the vertical through hole 5.1 is tightly propped up, then the top of the U-shaped bracket 5 is connected with the annular frame body 2 on the upper side, specifically, the vertical screw hole at the top of the U-shaped bracket 5 is firstly contacted with and aligned with the through hole area of the annular frame body 2 on the upper side, then the fixing screw 6 is screwed into the vertical screw hole 5.4 from top to bottom, and finally the fixing nut 6.1 is screwed onto the surface of the fixing screw 6, so that the position of the fixing screw 6 is fixed; finally, the height of the dial indicator 4 can be adjusted, so that the measuring head contacts with the surface of the annular frame body positioned at the lower side, the position of the fixing rod 4.1 in the vertical through hole 5.1 can be adjusted only by unscrewing the limit screw 5.3, namely, the height of the whole dial indicator 4 is adjusted, and after the adjustment process is finished, the limit screw 5.3 is screwed; and then the whole concrete test block 1 and auxiliary fixing tools thereof are well leveled and fixed and then are placed on a universal material testing machine for compression-resistant detection, after deformation values are recorded for the last time in a test, two semi-annular frames 2.1 of the annular frame body 2 can be transversely separated by rotating to screw out limit screws 2.3, the annular frame body is quickly detached in advance, and the problem that the annular frame body deforms due to overlarge impact force in the subsequent process is avoided.
The foregoing embodiments are merely preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without collision. The protection scope of the present utility model is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (6)
1. The utility model provides a concrete resistance to compression elastic modulus test auxiliary fixation instrument, is including annular support body (2) that are located concrete test block (1) upside and downside, offer the screw that is used for wearing to establish tight screw rod (3) on annular support body (2), set up amesdial (4) between annular support body (2) that are located the upside and annular support body (2) that are located the downside, its characterized in that: the annular frame body (2) comprises two semi-annular frames (2.1), the contact positions of the two semi-annular frames (2.1) are respectively provided with mutually matched steps (2.2), and screw holes penetrating through the limit screws (2.3) are formed in the steps (2.2).
2. The auxiliary fixing tool for concrete compression-resistant elastic modulus test according to claim 1, wherein: 4 screw holes for penetrating the tightening screw rods (3) are symmetrically formed in the annular frame body (2).
3. The auxiliary fixing tool for concrete compression-resistant elastic modulus test according to claim 1, wherein: dial indicators (4) are arranged on two sides between the annular frame body (2) positioned on the upper side and the annular frame body (2) positioned on the lower side.
4. The auxiliary fixing tool for concrete compression-resistant elastic modulus test according to claim 1, wherein: the utility model discloses a dial indicator, including U type support (5), fixed lever (4.1) at amesdial (4) top wears to locate U type support (5) bottom, U type support (5) top is connected with annular support body (2) that are located the upside through fixing screw (6).
5. The auxiliary fixing tool for concrete compression-resistant elastic modulus test according to claim 4, wherein: the fixing rod (4.1) is matched with a vertical through hole (5.1) at the bottom of the U-shaped support (5), a transverse screw hole (5.2) communicated with the vertical through hole (5.1) is formed in the side part of the U-shaped support (5), and a limit screw (5.3) in threaded fit with the transverse screw hole (5.2) is arranged in the transverse screw hole.
6. The auxiliary fixing tool for concrete compression-resistant elastic modulus test according to claim 4, wherein: the U-shaped support (5) is characterized in that a vertical screw hole (5.4) in threaded fit with the fixing screw (6) is formed in the top of the U-shaped support, a through hole is formed in the annular support body (2) located on the upper side, and a fixing nut (6.1) in threaded fit with the fixing screw is arranged on the surface of the fixing screw (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223189996.4U CN219084567U (en) | 2022-11-30 | 2022-11-30 | Auxiliary fixing tool for concrete compression-resistant elastic mold test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223189996.4U CN219084567U (en) | 2022-11-30 | 2022-11-30 | Auxiliary fixing tool for concrete compression-resistant elastic mold test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219084567U true CN219084567U (en) | 2023-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223189996.4U Active CN219084567U (en) | 2022-11-30 | 2022-11-30 | Auxiliary fixing tool for concrete compression-resistant elastic mold test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219084567U (en) |
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2022
- 2022-11-30 CN CN202223189996.4U patent/CN219084567U/en active Active
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