CN211374331U

CN211374331U - Be applied to tensile sensor mounting structure of measuring of concrete unipolar

Info

Publication number: CN211374331U
Application number: CN201921896337.XU
Authority: CN
Inventors: 郑愚; 张黎飞; 胡少伟; 夏立鹏
Original assignee: Dongguan University of Technology
Current assignee: Dongguan University of Technology
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-08-28
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses a sensor mounting structure applied to concrete uniaxial tension measurement, which comprises an upper end scissor mechanism, a lower end scissor mechanism, a left side displacement sensor and a right side displacement sensor, wherein the upper end scissor mechanism comprises an upper end scissor middle support, an upper end scissor left side support and an upper end scissor right side support; the lower end scissors mechanism comprises a lower end scissors middle support, a lower end scissors left side support and a lower end scissors right side support, and the lower end scissors middle support comprises a lower end middle support horizontal part, a lower end middle support left side vertical part and a lower end middle support right side vertical part. Through the structure design, the utility model has the advantages of novel in design, stability is good and the installation is simple and convenient.

Description

Be applied to tensile sensor mounting structure of measuring of concrete unipolar

Technical Field

The utility model relates to a civil engineering technical field especially relates to a be applied to concrete uniaxial tension measuring's sensor mounting structure.

Background

The concrete uniaxial tension device is important test equipment in scientific research and is an important method for determining the uniaxial tension strength of materials. In the prior art, a displacement sensor of a uniaxial tension test is generally fixedly mounted on a concrete sample, during mounting, one end of the concrete sample is pasted with an iron sheet through epoxy resin, the other end of the concrete sample is pasted with a support through epoxy resin, the displacement sensor is mounted on the support, and a sensing end of the displacement sensor is connected with the iron sheet through an iron wire.

The displacement sensor mounting structure has the defects of poor stability and various mounting processes.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be applied to concrete uniaxial tension measuring's sensor mounting structure to prior art not enough, should be applied to concrete uniaxial tension measuring's sensor mounting structure novel in design, stability is good and the installation is simple and convenient.

In order to achieve the above purpose, the present invention is achieved by the following technical solutions.

A sensor mounting structure applied to concrete uniaxial tension measurement comprises an upper end scissor mechanism, a lower end scissor mechanism, a left side displacement sensor and a right side displacement sensor, wherein the lower end scissor mechanism is positioned at the lower end side of the upper end scissor mechanism;

the upper scissors mechanism comprises an upper scissors middle bracket, an upper scissors left bracket positioned at the left end side of the upper scissors middle bracket, and an upper scissors right bracket positioned at the right end side of the upper scissors middle bracket, the upper end shear left side support and the upper end shear right side support are arranged in a bilateral symmetry mode, the upper end shear middle support comprises an upper end middle support horizontal part, an upper end middle support left side vertical part and an upper end middle support right side vertical part, the upper end middle support horizontal part extends horizontally along the left-right direction and is clamped and fixed on a concrete sample, the upper end middle support left side vertical part is arranged at the left end part of the upper end middle support horizontal part and extends vertically downwards, the upper end middle support left side vertical part is arranged at the right end part of the upper end middle support horizontal part and extends vertically downwards, the upper end middle support left side vertical part and the upper end middle support right side vertical part are arranged in a; the upper-end scissors left-side bracket is provided with an upper-end left-side bracket first connecting part, an upper-end left-side bracket second connecting part and an upper-end left-side bracket third connecting part, and the upper-end left-side bracket first connecting part is hinged with the upper-end middle bracket left-side vertical part through a pivot; the upper-end scissor right side support is provided with an upper-end right side support first connecting part, an upper-end right side support second connecting part and an upper-end right side support third connecting part, and the upper-end right side support first connecting part is hinged with the upper-end middle support right side vertical part through a pivot;

the lower scissors mechanism comprises a lower scissors middle bracket, a lower scissors left bracket positioned at the left end side of the lower scissors middle bracket, and a lower scissors right bracket positioned at the right end side of the lower scissors middle bracket, the lower end shear left side support and the lower end shear right side support are arranged in a bilateral symmetry manner, the lower end shear middle support comprises a lower end middle support horizontal part which horizontally extends along the left-right direction and is clamped and fixed on a concrete sample, a lower end middle support left side vertical part which is arranged at the left end part of the lower end middle support horizontal part and vertically extends upwards, and a lower end middle support right side vertical part which is arranged at the right end part of the lower end middle support horizontal part and vertically extends upwards, the lower end middle support left side vertical part and the lower end middle support right side vertical part are arranged in a bilateral symmetry manner, and the lower end middle support horizontal part, the lower end middle support left side vertical part and the; the middle part of the left bracket of the lower end scissors is hinged with a second connecting part of the left bracket at the upper end of the left bracket of the upper end scissors through a pivot; the left end part of the right side bracket of the lower scissors is hinged with the right vertical part of the lower middle bracket through a pivot, and the middle part of the right side bracket of the lower scissors is hinged with a second connecting part of the right side bracket of the upper scissors through a pivot; left side displacement sensor, right side displacement sensor are vertical layout respectively, and left side displacement sensor installs in the upper end left side support third connecting portion of upper end scissors left side support and left side displacement sensor's induction end and the left end connection of lower extreme scissors left side support, and right side displacement sensor installs in the upper end right side support third connecting portion of upper end scissors right side support and right side displacement sensor's induction end and the right-hand member portion of lower extreme scissors right side support and is connected.

The middle position of the horizontal part of the upper middle support is provided with an upper middle support accommodating groove which is opened forwards and used for embedding a concrete test piece, and the left side wall of the upper middle support accommodating groove is provided with an upper left side clamping lug which protrudes towards the left side and is in line contact with the concrete test piece; the right side wall of the upper-end middle support accommodating groove is provided with an upper-end middle support threaded hole which is opened towards the right side, an upper-end right-side clamping screw is screwed in the upper-end middle support threaded hole, and the left end part of the upper-end right-side clamping screw is in a conical shape; when the upper right clamping screw is screwed in the threaded hole, the left end part of the upper right clamping screw is in point contact with the concrete test piece.

The middle position of the horizontal part of the lower-end middle support is provided with a lower-end middle support accommodating groove which is opened forwards and is used for embedding a concrete test piece, and the left side wall of the lower-end middle support accommodating groove is provided with a lower-end left-side clamping lug which protrudes towards the left side and is in line contact with the concrete test piece; a lower end middle support threaded hole which is opened towards the right side is formed in the right side wall of the lower end middle support accommodating groove, a lower end right side clamping screw is screwed in the lower end middle support threaded hole, and the left end part of the lower end right side clamping screw is in a conical shape; when the lower-end right-side clamping screw is screwed in the threaded hole, the left end part of the lower-end right-side clamping screw is in point contact with the concrete test piece.

The stretching measurement assembly further comprises an auxiliary fixing support, the auxiliary fixing support comprises a left auxiliary fixing block and a right auxiliary fixing block positioned on the right end side of the left auxiliary fixing block, the left auxiliary fixing block and the right auxiliary fixing block are right opposite to each other and are arranged at intervals, a fixing block middle connecting rod in horizontal and transverse arrangement is connected between the left auxiliary fixing block and the right auxiliary fixing block, and the left auxiliary fixing block, the right auxiliary fixing block and the fixing block middle connecting rod are of an integrated structure;

the left auxiliary fixing block is provided with a left auxiliary fixing groove which is opened forwards and completely penetrates up and down, and the lower end part of the left vertical part of the upper middle bracket and the upper end part of the left vertical part of the lower middle bracket are respectively embedded in the left auxiliary fixing groove; the lower end part of the left vertical part of the upper middle support is provided with an upper left positioning bolt in a screwed manner, the upper end part of the left vertical part of the lower middle support is provided with a lower left positioning bolt in a screwed manner, the left auxiliary fixing block corresponds to the upper left positioning bolt and the lower left positioning bolt and is respectively provided with a long circular and vertically extending left fixing block long circular hole, the upper left positioning bolt and the lower left positioning bolt respectively penetrate through the corresponding left fixing block long circular holes, and the large end parts of the upper left positioning bolt and the lower left positioning bolt are respectively positioned at the rear end side of the left auxiliary fixing block;

the right auxiliary fixing block is provided with a right auxiliary fixing groove which is opened forwards and completely penetrates up and down, and the lower end part of the right vertical part of the upper middle support and the upper end part of the right vertical part of the lower middle support are respectively embedded in the right auxiliary fixing groove; the lower tip spiral shell of upper end middle support right side vertical portion is equipped with upper end right side positioning bolt, the upper end spiral shell of lower extreme middle support right side vertical portion is equipped with lower extreme right side positioning bolt, the right side auxiliary fixing block corresponds upper end right side positioning bolt, lower extreme right side positioning bolt is seted up respectively and is the right side fixed block slotted hole of long circular shape and vertical extension, upper end right side positioning bolt, lower extreme right side positioning bolt passes corresponding right side fixed block slotted hole respectively, upper end right side positioning bolt, the stub portion of lower extreme right side positioning bolt is located the rear end side of right side auxiliary fixing block respectively.

The utility model has the advantages that: the utility model relates to a sensor mounting structure applied to concrete uniaxial tension measurement, which comprises an upper end scissor mechanism, a lower end scissor mechanism, a left side displacement sensor and a right side displacement sensor, wherein the lower end scissor mechanism is positioned at the lower end side of the upper end scissor mechanism; the upper scissors mechanism comprises an upper scissors middle bracket, an upper scissors left bracket positioned at the left end side of the upper scissors middle bracket, and an upper scissors right bracket positioned at the right end side of the upper scissors middle bracket, the upper end shear left side support and the upper end shear right side support are arranged in a bilateral symmetry mode, the upper end shear middle support comprises an upper end middle support horizontal part, an upper end middle support left side vertical part and an upper end middle support right side vertical part, the upper end middle support horizontal part extends horizontally along the left-right direction and is clamped and fixed on a concrete sample, the upper end middle support left side vertical part is arranged at the left end part of the upper end middle support horizontal part and extends vertically downwards, the upper end middle support left side vertical part is arranged at the right end part of the upper end middle support horizontal part and extends vertically downwards, the upper end middle support left side vertical part and the upper end middle support right side vertical part are arranged in a; the upper-end scissors left-side bracket is provided with an upper-end left-side bracket first connecting part, an upper-end left-side bracket second connecting part and an upper-end left-side bracket third connecting part, and the upper-end left-side bracket first connecting part is hinged with the upper-end middle bracket left-side vertical part through a pivot; the upper-end scissor right side support is provided with an upper-end right side support first connecting part, an upper-end right side support second connecting part and an upper-end right side support third connecting part, and the upper-end right side support first connecting part is hinged with the upper-end middle support right side vertical part through a pivot; the lower scissors mechanism comprises a lower scissors middle bracket, a lower scissors left bracket positioned at the left end side of the lower scissors middle bracket, and a lower scissors right bracket positioned at the right end side of the lower scissors middle bracket, the lower end shear left side support and the lower end shear right side support are arranged in a bilateral symmetry manner, the lower end shear middle support comprises a lower end middle support horizontal part which horizontally extends along the left-right direction and is clamped and fixed on a concrete sample, a lower end middle support left side vertical part which is arranged at the left end part of the lower end middle support horizontal part and vertically extends upwards, and a lower end middle support right side vertical part which is arranged at the right end part of the lower end middle support horizontal part and vertically extends upwards, the lower end middle support left side vertical part and the lower end middle support right side vertical part are arranged in a bilateral symmetry manner, and the lower end middle support horizontal part, the lower end middle support left side vertical part and the; the middle part of the left bracket of the lower end scissors is hinged with a second connecting part of the left bracket at the upper end of the left bracket of the upper end scissors through a pivot; the left end part of the right side bracket of the lower scissors is hinged with the right vertical part of the lower middle bracket through a pivot, and the middle part of the right side bracket of the lower scissors is hinged with a second connecting part of the right side bracket of the upper scissors through a pivot; left side displacement sensor, right side displacement sensor are vertical layout respectively, and left side displacement sensor installs in the upper end left side support third connecting portion of upper end scissors left side support and left side displacement sensor's induction end and the left end connection of lower extreme scissors left side support, and right side displacement sensor installs in the upper end right side support third connecting portion of upper end scissors right side support and right side displacement sensor's induction end and the right-hand member portion of lower extreme scissors right side support and is connected. Through the structure design, the utility model has the advantages of novel in design, stability is good and the installation is simple and convenient.

Drawings

The invention will be further described with reference to the drawings, but the embodiments in the drawings do not constitute any limitation of the invention.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of a partial structure of the present invention.

Included in fig. 1 and 2 are:

1-concrete sample 2-upper end scissors mechanism

21-middle support 211 of upper scissors-horizontal part of upper middle support

212-upper end middle support left side vertical part

213-upper end middle support right vertical part

214-upper middle support receiving groove 215-upper left clamping projection

216-Upper Right clamping screw 22-Upper Scissors left bracket

221-first connection part of upper left bracket

222-upper left bracket second connecting part

223-third connecting part of upper left bracket

23-Upper Scissors Right side frame 231-Upper Right side frame first connecting part

232-second connecting part of upper right bracket

233-third connecting part of upper right bracket

3-lower end scissors mechanism 31-lower end scissors middle support

311-lower end middle support horizontal part 312-lower end middle support left side vertical part

313-lower end middle support right vertical part 314-lower end middle support containing groove

315-lower left clamping lug 316-lower right clamping screw

32-left side bracket 33 of lower end scissors-right side bracket of lower end scissors

41-left side displacement sensor 42-right side displacement sensor

5-auxiliary fixing bracket 51-left auxiliary fixing block

511-left auxiliary fixing groove 52-right auxiliary fixing block

521-right auxiliary fixing groove 53-fixing block intermediate connecting rod

611-upper end left positioning bolt 612-upper end right positioning bolt

621-lower end left side positioning bolt 622-lower end right side positioning bolt.

Detailed Description

The present invention will be described with reference to specific embodiments.

As shown in fig. 1 and 2, a sensor mounting structure applied to uniaxial concrete tensile measurement includes an upper end scissor mechanism 2, a lower end scissor mechanism 3, a left side displacement sensor 41, and a right side displacement sensor 42, wherein the lower end scissor mechanism 3 is located at the lower end side of the upper end scissor mechanism 2.

Wherein, the upper scissors mechanism 2 comprises an upper scissors intermediate support 21, an upper scissors left side support 22 positioned at the left end side of the upper scissors intermediate support 21, an upper scissors right side support 23 positioned at the right end side of the upper scissors intermediate support 21, the upper scissors left side support 22 and the upper scissors right side support 23 are arranged in a bilateral symmetry manner, the upper scissors intermediate support 21 comprises an upper middle support horizontal part 211 horizontally extending along the left-right direction and fixedly clamped on the concrete sample 1, an upper middle support left side vertical part 212 arranged at the left end part of the upper middle support horizontal part 211 and vertically extending downwards, an upper middle support right side vertical part 213 arranged at the right end part of the upper middle support 211 and vertically extending downwards, the upper middle support left side vertical part 212 and the upper middle support right side vertical part 213 are arranged in a bilateral symmetry manner, the upper middle support horizontal part 211, the upper middle, The upper middle bracket left vertical part 212 and the upper middle bracket right vertical part 213 are of an integral structure; the upper-end scissors left side bracket 22 is provided with an upper-end left side bracket first connecting part 221, an upper-end left side bracket second connecting part 222 and an upper-end left side bracket third connecting part 223, and the upper-end left side bracket first connecting part 221 is hinged with the upper-end middle bracket left side vertical part 212 through a pivot; the upper scissors right bracket 23 is provided with an upper right bracket first connecting portion 231, an upper right bracket second connecting portion 232 and an upper right bracket third connecting portion 233, and the upper right bracket first connecting portion 231 is hinged to the upper middle bracket right vertical portion 213 through a pivot.

Further, the lower scissors mechanism 3 includes a lower scissors intermediate support 31, a lower scissors left support 32 located on the left side of the lower scissors intermediate support 31, a lower scissors right support 33 located on the right side of the lower scissors intermediate support 31, the lower scissors left support 32 and the lower scissors right support 33 are arranged in bilateral symmetry, the lower scissors intermediate support 31 includes a lower scissors intermediate support horizontal portion 311 horizontally extending in the left-right direction and fixedly clamped to the concrete sample 1, a lower scissors intermediate support left vertical portion 312 vertically extending upward and provided on the left end portion of the lower scissors intermediate support horizontal portion 311, a lower scissors intermediate support right vertical portion 313 vertically extending upward and provided on the right end portion of the lower scissors intermediate support horizontal portion 311, the lower scissors intermediate support left vertical portion 312 and the lower scissors intermediate support right vertical portion 313 are arranged in bilateral symmetry, the lower scissors intermediate support horizontal portion 311, The lower end middle support left vertical part 312 and the lower end middle support right vertical part 313 are of an integral structure; the right end part of the lower scissors left side bracket 32 is hinged with the lower middle bracket left vertical part 312 through a pivot, and the middle part of the lower scissors left side bracket 32 is hinged with the upper scissors left side bracket second connecting part 222 of the upper scissors left side bracket 22 through a pivot; the left end part of the lower scissors right side bracket 33 is hinged with the lower middle bracket right vertical part 313 through a pivot, and the middle part of the lower scissors right side bracket 33 is hinged with the upper end right side bracket second connecting part 232 of the upper scissors right side bracket 23 through a pivot; left side displacement sensor 41, right side displacement sensor 42 are vertical layout respectively, and left side displacement sensor 41 is installed in the left end of the upper end of upper scissors left side support 22 third connecting portion 223 and left side displacement sensor 41's induction end and the left end of lower extreme scissors left side support 32 is connected, and right side displacement sensor 42 is installed in the right end of the upper end of upper scissors right side support 23 right side support third connecting portion 233 and right side displacement sensor 42's induction end and lower extreme scissors right side support 33 and is connected.

It should be noted that the utility model discloses an upper end intermediate frame horizontal part 211 is connected with concrete sample 1 clamp through following mode, and is concrete: an upper-end middle bracket accommodating groove 214 which is opened forwards and used for embedding the concrete sample 1 is formed in the middle position of the upper-end middle bracket horizontal part 211, and an upper-end left-side clamping lug 215 which protrudes towards the left side and is in line contact with the concrete sample 1 is arranged on the left side wall of the upper-end middle bracket accommodating groove 214; an upper-end middle bracket threaded hole which is opened towards the right side is formed in the right side wall of the upper-end middle bracket accommodating groove 214, an upper-end right-side clamping screw 216 is screwed in the upper-end middle bracket threaded hole, and the left end part of the upper-end right-side clamping screw 216 is in a conical shape; when upper end right side clamping screw 216 screwed in the threaded hole, the left end portion and the 1 point contact of concrete sample of upper end right side clamping screw 216, promptly the utility model discloses an upper end scissors mechanism 2 presss from both sides tight fixed middle tensile section upper end portion through the mode of line contact + point contact. When the upper end scissors mechanism 2 needs to be detached from the concrete sample 1, a worker only needs to loosen the upper end right clamping screw 216. Because the utility model discloses an upper end intermediate support storage tank 214 opening is forward, when upper end intermediate support horizontal part 211 is connected with concrete sample 1, only need with concrete sample 1 embedding to upper end intermediate support storage tank 214 in, then screw upper end right side clamp screw 216 can, press from both sides tight fixed convenient and fast.

Similarly, the utility model discloses a lower extreme middle support horizontal part 311 presss from both sides tightly with concrete sample 1 through following mode and is connected, and is concrete: a lower-end intermediate support accommodating groove 314 which is opened forwards and is used for embedding the concrete sample 1 is formed in the middle position of the lower-end intermediate support horizontal part 311, and a lower-end left-side clamping lug 315 which protrudes towards the left side and is in line contact with the concrete sample 1 is arranged on the left side wall of the lower-end intermediate support accommodating groove 314; a lower-end middle bracket threaded hole which is opened towards the right side is formed in the right side wall of the lower-end middle bracket accommodating groove 314, a lower-end right-side clamping screw 316 is screwed in the lower-end middle bracket threaded hole, and the left end part of the lower-end right-side clamping screw 316 is in a conical shape; when lower extreme right side clamping screw 316 screwed in the threaded hole, the left end portion and the 1 point contact of concrete sample of lower extreme right side clamping screw 316, promptly the utility model discloses a lower extreme scissors mechanism 3 presss from both sides tight fixed concrete sample 1 through the mode of line contact + point contact. When the lower end scissors mechanism 3 needs to be detached from the concrete sample 1, a worker only needs to loosen the lower end right clamping screw 316. Because the utility model discloses a lower extreme intermediate strut storage tank 314 opening is forward, when lower extreme intermediate strut horizontal part 311 is connected with concrete sample 1, only need with concrete sample 1 imbed to lower extreme intermediate strut storage tank 314 in, then screw lower extreme right side clamp screw 316 can, press from both sides tight fixed convenient and fast.

In the process of carrying out a tensile test on the concrete sample 1 by using a tensile machine, the concrete sample 1 can generate tensile deformation, and in the process, the upper scissors middle bracket 21 of the upper scissors mechanism 2 clamps and fixes the concrete sample 1, namely the upper scissors middle bracket 21 moves upwards along with the tensile deformation of the concrete sample 1; meanwhile, the lower scissors intermediate bracket 31 of the lower scissors mechanism 3 clamps and fixes the concrete sample 1, namely the lower scissors intermediate bracket 31 moves downwards along with the tensile deformation of the concrete sample 1; in the process that the upper scissors intermediate support 21 and the lower scissors intermediate support 31 move along with the tensile deformation of the concrete sample 1, the distance between the third connecting portion 223 of the upper scissors left support 22 and the left end of the lower scissors left support is shortened, and the distance between the third connecting portion 233 of the upper scissors right support 23 and the right end of the lower scissors right support is shortened, that is, the left displacement sensor 41 and the right displacement sensor 42 are both in a contraction state in the tensile process, and the left displacement sensor 41 and the right displacement sensor 42 respectively obtain corresponding tensile displacement data.

It should be emphasized that the left side displacement sensor 41 and the right side displacement sensor 42 of the present invention are not directly connected to the concrete sample 1, and the tensile deformation of the concrete sample 1 is led out through the upper end scissor mechanism 2 and the lower end scissor mechanism 3; for traditional displacement sensor lug fixation in concrete sample 1 mode, the utility model discloses can save the step that the displacement sensor installation was fixed in concrete sample 1 effectively, can improve concrete uniaxial tension test's efficiency.

Synthesize the above-mentioned condition and know, through above-mentioned structural design, the utility model has the advantages of structural design is novel, simple to operate is swift and stability is good.

It should be further noted that, as shown in fig. 1 and fig. 2, the stretch measuring assembly further includes an auxiliary fixing bracket 5, the auxiliary fixing bracket 5 includes a left auxiliary fixing block 51 and a right auxiliary fixing block 52 located at the right end side of the left auxiliary fixing block 51, the left auxiliary fixing block 51 and the right auxiliary fixing block 52 are opposite to each other and spaced apart from each other, a fixing block intermediate connecting rod 53 horizontally and transversely arranged is connected between the left auxiliary fixing block 51 and the right auxiliary fixing block 52, and the left auxiliary fixing block 51, the right auxiliary fixing block 52 and the fixing block intermediate connecting rod 53 are an integrated structure;

the left auxiliary fixing block 51 is provided with a left auxiliary fixing groove 511 which is opened forwards and completely penetrates up and down, and the lower end part of the left vertical part 212 of the upper middle bracket and the upper end part of the left vertical part 312 of the lower middle bracket are respectively embedded in the left auxiliary fixing groove 511; an upper end left positioning bolt 611 is screwed at the lower end of the upper end middle support left vertical part 212, a lower end left positioning bolt 621 is screwed at the upper end of the lower end middle support left vertical part 312, the left auxiliary fixing block 51 is provided with a long circular and vertically extending left fixing block long circular hole corresponding to the upper end left positioning bolt 611 and the lower end left positioning bolt 621 respectively, the upper end left positioning bolt 611 and the lower end left positioning bolt 621 respectively penetrate through the corresponding left fixing block long circular holes, and the large end parts of the upper end left positioning bolt 611 and the lower end left positioning bolt 621 are respectively positioned at the rear end side of the left auxiliary fixing block 51;

the right auxiliary fixing block 52 is provided with a right auxiliary fixing groove 521 which is opened forwards and completely penetrates up and down, and the lower end part of the right vertical part 213 of the upper middle bracket and the upper end part of the right vertical part 313 of the lower middle bracket are respectively embedded in the right auxiliary fixing groove 521; an upper end right positioning bolt 612 is screwed on the lower end portion of the upper end middle support right vertical portion 213, a lower end right positioning bolt 622 is screwed on the upper end portion of the lower end middle support right vertical portion 313, a right elongated hole which is elongated in a vertical direction and is formed in the right auxiliary fixing block 52 corresponding to the upper end right positioning bolt 612 and the lower end right positioning bolt 622 respectively, the upper end right positioning bolt 612 and the lower end right positioning bolt 622 respectively penetrate through the corresponding right fixing block elongated holes, and the large end portions of the upper end right positioning bolt 612 and the lower end right positioning bolt 622 are located on the rear end side of the right auxiliary fixing block 52 respectively.

For the utility model discloses an auxiliary fixing support 5, at upper end scissors mechanism 2, when lower extreme scissors mechanism 3 and concrete test piece 1 press from both sides tight the connection, the staff inserts the vertical portion 212 in upper end intermediate support left side earlier, the vertical portion 312 in lower extreme intermediate support left side respectively to the auxiliary fixed slot 511 in left side auxiliary fixed block 51 and with upper end intermediate support right side vertical portion 213, the vertical portion 313 in lower extreme intermediate support right side inserts respectively to the auxiliary fixed slot 521 in right side auxiliary fixed block 52 to realize that upper end scissors intermediate support 21 aligns with lower extreme scissors intermediate support 31. When the concrete test piece 1 is subjected to a tensile test, the upper-end left-side positioning bolt 611 can move relative to the corresponding left-side fixing block long circular hole, the upper-end right-side positioning bolt 612 can move relative to the corresponding right-side fixing block long circular hole, meanwhile, the lower-end left-side positioning bolt 621 can move relative to the corresponding left-side fixing block long circular hole, the lower-end right-side positioning bolt 622 can move relative to the corresponding right-side fixing block long circular hole, the installation mode capable of moving relative to each other can effectively avoid interference during the tensile test, and further avoid influence on test accuracy.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a be applied to tensile sensor mounting structure of measuring of concrete unipolar which characterized in that: the scissors comprise an upper end scissors mechanism (2), a lower end scissors mechanism (3), a left side displacement sensor (41) and a right side displacement sensor (42), wherein the lower end scissors mechanism (3) is positioned at the lower end side of the upper end scissors mechanism (2);

the upper end scissors mechanism (2) comprises an upper end scissors middle support (21), an upper end scissors left side support (22) positioned on the left end side of the upper end scissors middle support (21), an upper end scissors right side support (23) positioned on the right end side of the upper end scissors middle support (21), the upper end scissors left side support (22) and the upper end scissors right side support (23) are arranged in a bilateral symmetry manner, the upper end scissors middle support (21) comprises an upper end middle support horizontal part (211) which horizontally extends along the left-right direction and is clamped and fixed on a concrete test piece (1), an upper end middle support left side vertical part (212) which is arranged on the left end part of the upper end middle support horizontal part (211) and vertically extends downwards, an upper end middle support right side vertical part (213) which is arranged on the right end part of the upper end middle support horizontal part (211) and vertically extends downwards, and the upper end middle support left side vertical, the upper end middle support horizontal part (211), the upper end middle support left side vertical part (212) and the upper end middle support right side vertical part (213) are of an integral structure; the upper-end scissors left side support (22) is provided with an upper-end left side support first connecting part (221), an upper-end left side support second connecting part (222) and an upper-end left side support third connecting part (223), and the upper-end left side support first connecting part (221) is hinged with the upper-end middle support left side vertical part (212) through a pivot; the upper-end scissors right side bracket (23) is provided with an upper-end right side bracket first connecting part (231), an upper-end right side bracket second connecting part (232) and an upper-end right side bracket third connecting part (233), and the upper-end right side bracket first connecting part (231) is hinged with the upper-end middle bracket right side vertical part (213) through a pivot;

the lower end scissors mechanism (3) comprises a lower end scissors middle support (31), a lower end scissors left side support (32) positioned at the left end side of the lower end scissors middle support (31), a lower end scissors right side support (33) positioned at the right end side of the lower end scissors middle support (31), the lower end scissors left side support (32) and the lower end scissors right side support (33) are arranged in a bilateral symmetry way, the lower end scissors middle support (31) comprises a lower end middle support horizontal part (311) which horizontally extends along the left-right direction and is fixedly clamped on a concrete test piece (1), a lower end middle support left side vertical part (312) which is arranged at the left end part of the lower end middle support horizontal part (311) and vertically extends upwards, a lower end middle support right side vertical part (313) which is arranged at the right end part of the lower end middle support horizontal part (311) and vertically extends upwards, and the lower end middle support left side vertical part, the horizontal part (311) of the lower middle support, the left vertical part (312) of the lower middle support and the right vertical part (313) of the lower middle support are of an integral structure; the right end part of the lower-end scissors left side bracket (32) is hinged with a left side vertical part (312) of the lower-end middle bracket through a pivot, and the middle part of the lower-end scissors left side bracket (32) is hinged with a second connecting part (222) of the upper-end left side bracket of the upper-end scissors left side bracket (22) through a pivot; the left end part of the lower-end scissors right side support (33) is hinged with the right vertical part (313) of the lower-end middle support through a pivot, and the middle part of the lower-end scissors right side support (33) is hinged with a second connecting part (232) of the upper-end right side support of the upper-end scissors right side support (23) through a pivot; left side displacement sensor (41), right side displacement sensor (42) are vertical layout respectively, left side displacement sensor (41) are installed in the left end connection of upper end left side support third connecting portion (223) and left side displacement sensor (41) of upper end scissors left side support (22) and lower extreme scissors left side support (32), right side displacement sensor (42) are installed in the right end connection of upper end right side support third connecting portion (233) and right side displacement sensor (42) of upper end scissors right side support (23) and lower extreme scissors right side support (33).

2. The sensor mounting structure applied to uniaxial concrete tension measurement according to claim 1, wherein: an upper end middle support accommodating groove (214) which is opened forwards and used for embedding the concrete test piece (1) is formed in the middle position of the upper end middle support horizontal part (211), and an upper end left side clamping lug (215) which protrudes towards the left side and is in line contact with the concrete test piece (1) is arranged on the left side wall of the upper end middle support accommodating groove (214); an upper-end middle support threaded hole which is opened towards the right side is formed in the right side wall of the upper-end middle support accommodating groove (214), an upper-end right-side clamping screw (216) is screwed in the upper-end middle support threaded hole, and the left end part of the upper-end right-side clamping screw (216) is in a conical shape; when the upper right clamping screw (216) is screwed in the threaded hole, the left end part of the upper right clamping screw (216) is in point contact with the concrete test piece (1).

3. The sensor mounting structure applied to uniaxial concrete tension measurement according to claim 1, wherein: a lower-end middle bracket accommodating groove (314) which is opened forwards and is used for embedding the concrete test piece (1) is formed in the middle position of the lower-end middle bracket horizontal part (311), and a lower-end left-side clamping lug (315) which protrudes towards the left side and is in line contact with the concrete test piece (1) is arranged on the left side wall of the lower-end middle bracket accommodating groove (314); a lower-end middle bracket threaded hole which is opened towards the right side is formed in the right side wall of the lower-end middle bracket accommodating groove (314), a lower-end right-side clamping screw (316) is screwed in the lower-end middle bracket threaded hole, and the left end part of the lower-end right-side clamping screw (316) is conical; when the lower-end right clamping screw (316) is screwed in the threaded hole, the left end part of the lower-end right clamping screw (316) is in point contact with the concrete test piece (1).

4. The sensor mounting structure applied to uniaxial concrete tension measurement according to claim 1, wherein: the stretching measurement assembly further comprises an auxiliary fixing support (5), the auxiliary fixing support (5) comprises a left auxiliary fixing block (51) and a right auxiliary fixing block (52) located on the right end side of the left auxiliary fixing block (51), the left auxiliary fixing block (51) and the right auxiliary fixing block (52) are right-left opposite and arranged at intervals, a fixing block middle connecting rod (53) horizontally and transversely arranged is connected between the left auxiliary fixing block (51) and the right auxiliary fixing block (52), and the left auxiliary fixing block (51), the right auxiliary fixing block (52) and the fixing block middle connecting rod (53) are of an integrated structure;

the left auxiliary fixing block (51) is provided with a left auxiliary fixing groove (511) which is opened forwards and completely penetrates up and down, and the lower end part of the left vertical part (212) of the upper middle bracket and the upper end part of the left vertical part (312) of the lower middle bracket are respectively embedded in the left auxiliary fixing groove (511); an upper end left side positioning bolt (611) is screwed at the lower end part of the upper end middle support left side vertical part (212), a lower end left side positioning bolt (621) is screwed at the upper end part of the lower end middle support left side vertical part (312), a left side auxiliary fixing block (51) is provided with a long round and vertically extending left side fixing block long round hole corresponding to the upper end left side positioning bolt (611) and the lower end left side positioning bolt (621), the upper end left side positioning bolt (611) and the lower end left side positioning bolt (621) respectively penetrate through the corresponding left side fixing block long round holes, and the large end parts of the upper end left side positioning bolt (611) and the lower end left side positioning bolt (621) are respectively positioned at the rear end side of the left side;

the right auxiliary fixing block (52) is provided with a right auxiliary fixing groove (521) which is opened forwards and completely penetrates up and down, and the lower end part of the right vertical part (213) of the upper middle bracket and the upper end part of the right vertical part (313) of the lower middle bracket are respectively embedded in the right auxiliary fixing groove (521); the lower tip spiral shell of upper end middle support right side vertical portion (213) is equipped with upper end right side positioning bolt (612), lower extreme right side positioning bolt (622) is equipped with to the upper end spiral shell of lower extreme middle support right side vertical portion (313), right side fixed block slotted hole that is obround and vertical extension is seted up respectively to right side auxiliary fixing block (52) corresponding upper end right side positioning bolt (612), lower extreme right side positioning bolt (622) pass corresponding right side fixed block slotted hole respectively, the big end portion of upper end right side positioning bolt (612), lower extreme right side positioning bolt (622) is located the rear end side of right side auxiliary fixing block (52) respectively.