CN214503083U

CN214503083U - Scribing and cutting auxiliary device for strong tearing sample of geosynthetic material by adopting trapezoidal method

Info

Publication number: CN214503083U
Application number: CN202120694306.7U
Authority: CN
Inventors: 陈梅; 刘露
Original assignee: China Building Materials Inspection And Certification Group Yunnan Hexin Co ltd
Current assignee: China National Inspection And Testing Holding Group Yunnan Co ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-10-26
Anticipated expiration: 2031-04-07

Abstract

The invention discloses a scribing and cutting auxiliary device for a geotechnical synthetic material strong tearing sample, which belongs to the field of building engineering detection.

Description

Scribing and cutting auxiliary device for strong tearing sample of geosynthetic material by adopting trapezoidal method

Technical Field

The invention belongs to the field of constructional engineering detection, and particularly relates to a marking and cutting auxiliary device for a terraced tearing sample of a geosynthetic material.

Background

When the tearing strength of the geosynthetic material is measured by the trapezoid method, two groups of test pieces are prepared, 10 test samples are respectively cut along the warp direction (longitudinal direction) and the weft direction (transverse direction), the size of each test sample is (75 +/-1) mmx (200 +/-2) mm, each test sample is a rectangular test sample, a cut with the length of 15mm needs to be cut at the middle part of each test sample, two trapezoidal waist lines with the width of 25mm at the upper bottom and the width of 100mm at the lower bottom are marked by taking the cut as a symmetry axis, the two waist lines are clamping lines of a tearing clamp, and the style and the shape are shown in figure 1; the existing scribing and notching method is that a straight ruler is used for scribing four points of a central line and a trapezoid, then the points are connected into a line to scribe two sides of the trapezoid, and finally a notch with the length of 15mm is cut along the center, so that the scribing error is large, the bilateral symmetry of the two sides of the trapezoid with the notch is difficult to ensure, and a certain error is brought to a test result.

Disclosure of Invention

The invention aims to provide a scribing and cutting auxiliary device for a terraced strong tearing sample of a geosynthetic material, which can rapidly and accurately scribe two trapezoidal waist lines and cut a 15 mm-long notch.

The scribing and cutting auxiliary device for the trapezoid-method strong tearing sample of the geosynthetic material comprises a groove plate, two guide pillars, a base plate and a pressing plate, wherein the groove width of the groove plate is 200mm, the two guide pillars are fixedly arranged at the bottom of the groove plate, and the central connecting line of the two guide pillars is vertical to the groove side of the groove plate; the base plate is installed at the tank bottom of frid, the front portion of clamp plate sets to trapezoidal, and trapezoidal upper base width is 25mm, and the width of going to the bottom is 100mm, and the height is 75mm, has seted up a breach that length is 15mm, width is 3 ~ 5mm from trapezoidal upper base to the direction of going to the bottom, and the breach left surface coincides with trapezoidal central line, and the rear portion of clamp plate is provided with two guiding holes, and two guiding holes all are tangent with trapezoidal going to the bottom, but the clamp plate passes through two guiding holes slidable mounting from top to bottom on two guide pillars, and the trapezoidal position of clamp plate can be pressed on the base plate.

The backing plate can be a brass plate or a nylon plate, and the nylon plate is preferred.

In order to facilitate the taking out of the pressing plate, the rear end of the pressing plate extends out of the groove plate, and the pressing plate can be conveniently taken out upwards by holding the extending part.

The invention works in such a way that a sample with the length of 200mm and the width of 75mm is horizontally placed on a base plate in a groove plate after being taken out upwards, one long edge of the sample is attached to the cylindrical surfaces of two guide posts, a pressure plate is sleeved on the two guide posts and is pressed on the sample, a marking pen with the pen point of 0.5mm or less is used for marking along the two trapezoidal waists of the pressure plate, a clamping line is marked on the sample, then a cutter is used for cutting along the left side surface of a notch on the pressure plate, and a notch with the length of 15mm is cut on the sample.

The invention relates to a scribing and cutting auxiliary device for a sample strongly torn by a trapezoid method of geosynthetic materials, which comprises a groove plate, a guide pillar, a base plate and a pressing plate, wherein the positioning and installation of the sample are realized through the groove plate and the guide pillar, the pressing plate with the guide pillar as an installation reference presses the sample on the base plate, the front part of the pressing plate is arranged into a trapezoid shape of a test clamping line, an accurate clamping line can be scribed on the sample by scribing along two sides of the trapezoid, a notch with the length of 15mm can be cut on the sample by cutting along the notch by forming the notch on the pressing plate, the notch can be ensured to be positioned on a symmetrical axis between two waist lines of the trapezoid, the problem of inaccurate scribing notch in the prior art can be effectively solved, the use is convenient, and the operation efficiency can be effectively improved.

Drawings

Fig. 1 is a structural diagram of an embodiment of a scribing and cutting auxiliary device for a trapezoidal strong tear sample of a geosynthetic material.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a bottom view of fig. 1.

Fig. 4 is a top view of fig. 1.

Fig. 5 is a structural view of the pressing plate of fig. 1.

In the figure: 1. The guide post comprises a groove plate, 2 a base plate, 3 a pressing plate, 4 a guide post, A a notch, B a notch left side face, C a guide hole.

Detailed Description

Fig. 1 to 5 show an embodiment of a scribing and cutting auxiliary device for a ladder-type strong tearing sample of a geosynthetic material, which comprises a groove plate 1, two guide pillars 4, a backing plate 2 and a pressing plate 3, wherein the groove width of the groove plate 1 is 200mm, the number of the guide pillars 4 is two, the two guide pillars are fixedly arranged at the bottom of the groove plate 1, and the central connecting line of the two guide pillars is perpendicular to the groove side of the groove plate 1; backing plate 2 is the nylon board, backing plate 2 installs the tank bottom at the frid, set up two mounting holes on backing plate 2, realize the location on guide pillar 4 through the mounting hole cross-under, compare like this with the screw fastening change convenience at the bottom of the groove, the front portion of clamp plate 3 sets to trapezoidal, trapezoidal upper base width is 25mm, the width of going to the bottom is 100mm, the height is 75mm, from trapezoidal upper base to going to the bottom direction set up a length and be 15mm, the width is 3 ~ 5 mm's breach A, breach left surface B and trapezoidal central line coincidence, the rear portion of clamp plate 3 is provided with two guiding holes C, two guiding holes all are tangent with trapezoidal going to the bottom, but clamp plate 3 is slidable mounting about through two guiding holes C on two guide pillars 4, the trapezoidal position of clamp plate 3 can be pressed on backing plate 2, the rear end of clamp plate 3 stretches out outside the frid, handheld extension position can conveniently take out the clamp plate upwards.

Claims

1. Geosynthetic material trapezoidal method powerful tear sample marking off cutting auxiliary device which characterized in that: the guide post structure comprises a groove plate, two guide posts, a base plate and a pressing plate, wherein the groove width of the groove plate is 200mm, the two guide posts are fixedly arranged at the groove bottom of the groove plate, and the central connecting line of the two guide posts is vertical to the groove side of the groove plate; the base plate is installed at the tank bottom of frid, the front portion of clamp plate sets to trapezoidal, and trapezoidal upper base width is 25mm, and the width of going to the bottom is 100mm, and the height is 75mm, has seted up a breach that length is 15mm, width is 3 ~ 5mm from trapezoidal upper base to the direction of going to the bottom, and the breach left surface coincides with trapezoidal central line, and the rear portion of clamp plate is provided with two guiding holes, and two guiding holes all are tangent with trapezoidal going to the bottom, but the clamp plate passes through two guiding holes slidable mounting from top to bottom on two guide pillars, and the trapezoidal position of clamp plate can be pressed on the base plate.

2. The scribing and cutting auxiliary device for the trapezoidal strong tear test sample of the geosynthetic material as claimed in claim 1, wherein: the backing plate is a nylon plate.

3. The scribing and cutting auxiliary device for the trapezoidal strong tear test sample of the geosynthetic material as claimed in claim 1, wherein: the rear end of the pressure plate extends out of the groove plate.