CN215640637U

CN215640637U - Civil engineering material shear strength test device

Info

Publication number: CN215640637U
Application number: CN202121421771.XU
Authority: CN
Inventors: 杜薇
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-01-25
Anticipated expiration: 2031-06-24

Abstract

The utility model relates to the technical field of civil engineering material shear strength tests, in particular to a civil engineering material shear strength test device which comprises an experiment bottom plate, wherein rubber foot pads are arranged at four corners of the bottom of the experiment bottom plate, a control panel is arranged at the corner on the left side of the top of the experiment bottom plate, a chute is arranged at the top of the experiment bottom plate along the length direction, a shear box main body is arranged at the top of the experiment bottom plate, and a shear mechanism is arranged at the top of the experiment bottom plate and positioned at the back of the shear box main body.

Description

Civil engineering material shear strength test device

Technical Field

The utility model relates to the technical field of civil engineering material shear strength tests, in particular to a civil engineering material shear strength test device.

Background

According to the current detection of civil engineering materials, the shear strength of the civil engineering materials is a very important test index, and the shear strength of the civil engineering materials has direct influence on the seismic performance and safety performance of building structures.

The existing civil engineering material shear strength test device is complex in structure, and especially when the test is carried out on engineering soil, the preliminary preparation work of a laboratory technician is too tedious, so that the test time is greatly increased, the device is not easy to operate and maintain, and the test efficiency and effect are reduced.

Therefore, the civil engineering material shear strength test device is designed to change the technical defects and improve the overall practicability, and is very important.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a civil engineering material shear strength test device to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a civil engineering material shear strength test device, includes the experiment bottom plate, four corners of experiment bottom plate bottom all are provided with rubber foot pad, the left corner in experiment bottom plate top is provided with control panel, the top of experiment bottom plate just is provided with the spout along length direction, the top of experiment bottom plate is provided with cuts the box main part, the top of experiment bottom plate and the back that is located to cut the box main part are provided with cuts the mechanism.

According to a preferable scheme of the utility model, the shear box main body comprises a first soil containing box and a second soil containing box which are fixed, water permeable paper and filter paper are laid on the bottom sides of the first soil containing box and the second soil containing box, a press cover is arranged between the tops of the first soil containing box and the second soil containing box, and a press handle is arranged at the center of the top of the press cover.

As a preferable scheme of the utility model, the fixed first soil containing box is fixedly connected to the top of the experiment bottom plate through a bolt, and the second soil containing box is arranged corresponding to the slide groove in position and connected in a sliding manner.

In a preferred embodiment of the present invention, the first soil containing box and the second soil containing box are arranged such that an inner structure thereof is formed corresponding to an outer structure thereof.

As a preferable scheme of the utility model, the shearing mechanism comprises supports arranged at the left end and the right end of the rear side of the top of the experimental bottom plate, a movable cross rod is arranged between the two supports, a sawtooth groove arranged along the length direction of the movable cross rod is formed in the outer side of the movable cross rod, a sliding sleeve is sleeved on the outer side of the movable cross rod, a gear window is formed in the outer side of the sliding sleeve, a rotating shaft is arranged on the inner side of the gear window, a gear matched with the sawtooth groove is sleeved on the outer side of the rotating shaft, a motor is connected to one end, penetrating through the inner side of the gear window, extending to the outer side of the gear window, of the rotating shaft, a shearing rod is connected to one side of the sliding sleeve facing the second soil containing box, a shearing block matched with the second soil containing box is arranged at one end, away from the sliding sleeve, of the shearing block, and a pressure sensor is arranged at one side of the shearing block facing the second soil containing box.

In a preferred embodiment of the present invention, the connection between the serrated groove and the gear is a meshing connection.

As a preferable scheme of the present invention, the motor, the pressure sensor and the control panel are connected by wires, and the connection mode is electrical connection.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the shear strength of the engineering soil can be rapidly detected through the civil engineering material shear strength testing device, meanwhile, the early preparation work is simple, the operation is convenient, the accuracy and the degree of cooling are high, the influence of the environment is small, and the detection efficiency can be greatly improved.

2. According to the utility model, through the arranged shearing mechanism, the motor is used for rotating the rotating shaft, the gear is driven to move in the sawtooth groove in parallel, then the engineering soil in the second soil containing box is subjected to translational shearing through the shearing rod and the shearing block, and the corresponding shearing strength can be obtained through calculation of data obtained by the pressure sensor in the shearing process, so that the operation is very convenient, and the running is more smooth.

3. According to the utility model, the shearing box main body is convenient for storing and testing the engineering soil, the pressing plate can tamp the engineering soil in one step, the testing precision is ensured, and meanwhile, the permeable paper and the filter paper can absorb liquid and impurities in the soil, so that the influence of seepage on the testing operation is avoided.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a view of the shear mechanism of the present invention;

FIG. 3 is a view showing the structure of the main body of the shear box of the present invention.

In the figure: 1. an experimental baseplate; 101. a rubber foot pad; 102. a control panel; 103. a chute; 2. a shear box body; 201. a first soil containing box; 202. a second soil containing box; 203. water permeable paper; 204. filtering paper; 205. pressing the cover; 206. pressing the handle; 3. a shearing mechanism; 301. a support; 302. moving the cross bar; 303. a sawtooth groove; 304. a sliding sleeve; 305. a gear window; 306. a rotating shaft; 307. a gear; 308. a motor; 309. a shear bar; 310. cutting the block; 311. a pressure sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Several embodiments of the utility model are presented. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-3, the present invention provides a technical solution:

the utility model provides a civil engineering material shear strength test device, includes experiment bottom plate 1, four corners of experiment bottom plate 1 bottom all are provided with rubber foot pad 101, and the left corner in experiment bottom plate 1 top is provided with control panel 102, and experiment bottom plate 1's top just is provided with spout 103 along length direction, and experiment bottom plate 1's top is provided with cuts box main part 2, and experiment bottom plate 1's top just is located the back of cutting box main part 2 and is provided with shearing mechanism 3.

In the embodiment, referring to fig. 1, 2 and 3, the shear box main body 2 includes a first soil containing box 201 and a second soil containing box 202, a water permeable paper 203 and a filter paper 204 are respectively laid on the bottom sides of the first soil containing box 201 and the second soil containing box 202, a pressing cover 205 is disposed between the tops of the first soil containing box 201 and the second soil containing box 202, a pressing handle 206 is disposed at the center of the top of the pressing cover 205, the first soil containing box 201 is fixedly connected to the top of the experimental base plate 1 by bolts, the second soil containing box 202 is disposed corresponding to the chute 103 in position and connected in a sliding manner, the first soil containing box 201 and the second soil containing box 202 form an internal structure having a size corresponding to the external structure size of the pressing cover 205, the first soil containing box 201 and the second soil containing box 202 are aligned and maintained on the same horizontal line, and a part of the previously compacted engineering soil is taken out and placed therein, and the pressing handle 206 is used for pressing the space between the pressing cover 205 and the engineering soil, so that further preparation for tamping is completed.

In an embodiment, referring to fig. 1 and fig. 2, the shearing mechanism 3 includes brackets 301 disposed at the left and right ends of the rear side of the top of the experimental baseplate 1, a movable cross bar 302 is disposed between the two brackets 301, a serrated groove 303 disposed along the length direction of the movable cross bar 302 is disposed on the outer side of the movable cross bar 302, a sliding sleeve 304 is sleeved on the outer side of the movable cross bar 302, a gear window 305 is disposed on the outer side of the sliding sleeve 304, a rotating shaft 306 is disposed on the inner side of the gear window 305, a gear 307 used in cooperation with the serrated groove 303 is sleeved on the outer side of the rotating shaft 306, one end of the rotating shaft 306 penetrating through the inner side of the gear window 305 and extending to the outer side of the gear window 305 is connected with a motor 308, one side of the sliding sleeve 304 facing the second soil containing box 202 is connected with a shearing rod 309, one end of the shearing rod 309 away from the sliding sleeve 304 is provided with a shearing block 310 used in cooperation with the second soil containing box 202, one side of the shearing block 310 facing the second soil containing box 202 is provided with a pressure sensor 311, the connection mode between the serrated groove 303 and the gear 307 is meshed connection, the motor 308 and the pressure sensor 311 are connected with the control panel 102 through conducting wires, the connection mode is electric connection, the motor 308 and the pressure sensor 311 are started through the control panel 102, the motor 308 is used for rotating the rotating shaft 306 and driving the gear 307 in the gear window 305 to move in parallel at the serrated groove 303, the sliding sleeve 304 moves along with the gear window and drives the shearing rod 309 and the shearing block 310 to carry out translational shearing on the second soil containing box 202 and the engineering soil in the second soil containing box 202, and the data obtained by the pressure sensor 311 in the shearing process can obtain corresponding shearing strength through calculation of the control panel 102.

The working process of the utility model is as follows: when in use, the first soil containing box 201 and the second soil containing box 202 are aligned and kept on the same horizontal line, then the engineering soil compacted in advance is partially taken out and put in, the pressing cover 205 and the engineering soil are pressed by the pressing handle 206 to complete further tamping preparation, then the motor 308 and the pressure sensor 311 are started by the control panel 102, at the moment, the motor 308 is utilized to rotate the rotating shaft 306 and drive the gear 307 in the gear window 305 to move in parallel at the sawtooth groove 303, at the moment, the sliding sleeve 304 moves along with the movement and drives the shearing rod 309 and the shearing block 310 to carry out translational shearing on the second soil containing box 202 and the engineering soil inside the second soil containing box 202, the data obtained by the pressure sensor 311 in the shearing process can obtain corresponding shearing strength through calculation of the control panel 102, and the permeable paper 203 and the filter paper 204 arranged inside the first soil containing box 201 and the second soil containing box 202 can absorb liquid and impurities in soil, the seepage is avoided to influence the experiment operation, the whole process is convenient for operate, the accuracy is high, and the influence of the environment is small, so that the detection efficiency can be greatly improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a civil engineering material shear strength test device, includes experiment bottom plate (1), its characterized in that: four corners of experiment bottom plate (1) bottom all are provided with rubber foot pad (101), the left corner in experiment bottom plate (1) top is provided with control panel (102), the top of experiment bottom plate (1) just is provided with spout (103) along length direction, the top of experiment bottom plate (1) is provided with cuts box main part (2), the top of experiment bottom plate (1) and the back that is located to cut box main part (2) are provided with cuts mechanism (3).

2. The civil engineering material shear strength test device of claim 1, wherein: cut box main part (2) including fixed first flourishing soil box (201) and the flourishing soil box of second (202), the bottom side of the first flourishing soil box (201) and the flourishing soil box of second (202) inside has all laid and has permeated water paper (203) and filter paper (204), be provided with between the top of the first flourishing soil box (201) and the flourishing soil box of second (202) press the lid (205), the center department at press lid (205) top is provided with presses handle (206).

3. The civil engineering material shear strength test device of claim 2, wherein: the first fixed soil containing box (201) is fixedly connected to the top of the experiment bottom plate (1) through bolts, the second soil containing box (202) is arranged corresponding to the sliding groove (103) in position, and the connection mode is sliding connection.

4. The civil engineering material shear strength test device of claim 2, wherein: the size of the internal structure formed by the first soil containing box (201) and the second soil containing box (202) corresponds to the size of the external structure of the pressing cover (205).

5. The civil engineering material shear strength test device of claim 1, wherein: the shearing mechanism (3) comprises supports (301) arranged at the left end and the right end of the rear side of the top of the experiment bottom plate (1), a movable cross rod (302) is arranged between the two supports (301), a sawtooth groove (303) arranged along the length direction of the movable cross rod (302) is formed in the outer side of the movable cross rod (302), a sliding sleeve (304) is sleeved on the outer side of the movable cross rod (302), a gear window (305) is formed in the outer side of the sliding sleeve (304), a rotating shaft (306) is arranged on the inner side of the gear window (305), a gear (307) matched with the sawtooth groove (303) for use is sleeved on the outer side of the rotating shaft (306), the rotating shaft (306) penetrates through the inner side of the gear window (305) and extends to one end of the outer side of the gear window (305) to be connected with a motor (308), and a shearing rod (309) is connected to one side, facing the second soil containing box (202), of the sliding sleeve (304), one end of the shearing rod (309), which is far away from the sliding sleeve (304), is provided with a shearing block (310) which is matched with the second soil containing box (202) for use, and one side, facing the second soil containing box (202), of the shearing block (310) is provided with a pressure sensor (311).

6. The civil engineering material shear strength test device of claim 5, wherein: the connection mode between the sawtooth groove (303) and the gear (307) is meshing connection.

7. The civil engineering material shear strength test device of claim 5, wherein: the motor (308), the pressure sensor (311) and the control panel (102) are connected through wires in an electrical connection mode.