Auxiliary line drawing instrument for measuring elastic modulus change of concrete test piece

Abstract

The utility model discloses an auxiliary line drawing instrument for measuring the elastic modulus change of a concrete test piece. The auxiliary line drawing instrument comprises a bottom plate, a rotating structure is installed at the top end of the bottom plate, a rotating shaft is installed in a rotating groove, a connecting line is installed on one side of a shell, a moving block is installed on one side of the connecting line, and a receiving plate is installed on one side of the moving block. The rotating groove is formed in the shell, the take-up wheel in the rotating groove can rotate along the rotating shaft, a connecting wire can be wound on the take-up wheel, the take-up wheel winds the connecting wire in the shell and the moving block, when the connecting wire is discharged, the connecting wire can pass through the position between the two rotating wheels, and the rotating wheel on the inner side of the connecting plate can rotate; and the two rotating wheels are matched to guide and level the connecting line, so that the connecting line is more stable and tight, and the purpose that the auxiliary line drawing instrument for measuring the elastic modulus change of the concrete test piece conveniently guides the connecting line is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring concrete, in particular to an auxiliary line drawing instrument for measuring the change of elastic modulus of a concrete test piece. Background Art

[0002] Concrete, referred to as "concrete", is a general term for engineering composite materials in which aggregates are bonded into a whole by cementitious materials. The term concrete usually refers to cement as a cementitious material, sand and stone as aggregates; mixed with water in a certain proportion and obtained by mixing. It is also called ordinary concrete. It is widely used in civil engineering. When testing concrete, it is often necessary to draw lines on the concrete. Drawing lines requires assistance, which requires an auxiliary line drawing instrument for measuring the change of elastic modulus of concrete specimens.

[0003] The above-mentioned prior art also has some disadvantages. 1. It is difficult for the auxiliary line drawing instrument used to measure the change of elastic modulus of concrete specimens to guide the connecting line. When performing the test, the connecting line needs to be used to guide the brush. When using the connecting line, it may not be tight enough, affecting the quality of marking.

[0004] 2. The auxiliary marking instrument used to determine the change in elastic modulus of concrete specimens is difficult to adjust in direction. After the device is placed, when adjusting the marking direction, the device needs to be lifted, which will easily cause the device to shift. Each time the direction is adjusted, the position of the device needs to be carefully determined. Utility Model Content

[0005] The utility model aims to provide an auxiliary line drawing instrument for measuring the change of elastic modulus of concrete specimens, so as to solve the defects of the existing auxiliary line drawing instruments for measuring the change of elastic modulus of concrete specimens that it is difficult to guide the connecting line and adjust the direction.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an auxiliary line drawing instrument for measuring the change of elastic modulus of a concrete specimen, comprising a bottom plate;

[0007] A rotating structure is installed at the top of the bottom plate, and a shell structure is installed at the top of the rotating structure. The shell structure includes a shell, a display screen, a level and a handle;

[0008] The shell is installed at the top of the rotating structure, a display screen is installed at one end of the shell, a level is installed at the top of one end of the shell, a handle is installed at the top of the shell, a laser transmitter is installed at one side of the shell, and a wire structure is installed inside the shell;

[0009] The wire structure includes a rotating groove, a wire-taking wheel, a rotating shaft, a connecting plate and a rotating wheel. The rotating groove is arranged inside a shell, a rotating shaft is installed inside the rotating groove, and a wire-taking wheel is installed on the inner side of the rotating shaft. The connecting plate is installed on one side of the shell, a connecting wire is installed on one side of the shell, a moving block is installed on one side of the connecting wire, and a receiving plate is installed on one side of the moving block.

[0010] When in use, first place the shell, then you can grab the moving block by the handle to move it. After the moving block moves, the connecting line can be driven to move. The connecting line between the shell and the moving block can guide the brush so that the brush can draw along the connecting line. At the same time, the laser transmitter can emit laser, and the laser can be shot onto the receiving board. The laser can allow the user to see the position of the connecting line more intuitively. When the connecting line is released, the length of the released connecting line can be displayed on the display screen.

[0011] Preferably, a rotating wheel is installed on the inner side of the connecting plate, and the rotating wheels are symmetrically distributed, and the rotating wheels can guide the connecting wires.

[0012] Preferably, the rotating structure includes a rotating shaft, a rotating plate and a fixing screw, the rotating shaft is installed at the top of the bottom plate, the rotating plate is installed at the top of the rotating shaft, and a fixing screw is installed on one side of the rotating plate, the rotating shaft can rotate, the rotation of the rotating shaft will drive the rotating plate to rotate, the rotation of the rotating plate can drive the shell at the top to rotate, when the device is placed, the shell can be rotated without moving the device, to drive the connecting line and the moving block to rotate, so as to adjust the direction of the connecting line.

[0013] Preferably, the outer wall of the fixing screw is evenly provided with external threads, the inner wall of the rotating plate is evenly provided with internal threads that cooperate with the external threads, the fixing screw and the rotating plate are threadedly connected, and when the rotating plate needs to be fixed, the fixing screw can be tightened to fix the rotating plate.

[0014] Preferably, a leveling structure is installed at the bottom end of the base plate, and the leveling structure includes a fixed plate, a fixed block, a threaded block, a support foot and anti-slip grooves. The fixed plate is installed at the bottom end of the base plate, and a fixed block is installed at the bottom end of the fixed plate, and the bottom end of the fixed block is movably connected with a threaded block, and the bottom end of the threaded block is installed with a support foot. The fixed block and the threaded block at the location of the fixed plate form a threaded connection, and the threaded block can rotate. The rotation of the threaded block can drive the support foot to rise and fall, and the lifting of the support foot can level the shell and the movable block, and the anti-slip grooves can enhance the friction of the support foot.

[0015] Preferably, the threaded block and the fixed block form a threaded connection, the outer diameter of the threaded block is smaller than the outer diameter of the fixed block, and the rotation of the threaded block can drive the support leg to move up and down.

[0016] Preferably, the bottom end of the support leg is provided with anti-skid patterns, and the anti-skid patterns are arranged at equal intervals at the bottom end of the support leg, and the anti-skid patterns can enhance the friction of the support leg.

[0017] The auxiliary line drawing instrument for measuring the change of the elastic modulus of a concrete specimen provided by the utility model has the advantages that: a rotating groove is installed inside a shell, a wire take-up wheel inside the rotating groove can rotate along a rotating shaft, a connecting wire can be wound on the wire take-up wheel, and the wire take-up wheel winds up the connecting wire inside the shell and the moving block, and when the connecting wire is discharged, the connecting wire passes between two rotating wheels, and the rotating wheel inside the connecting plate can rotate, and the two rotating wheels can cooperate to guide and flatten the connecting wire, so that the connecting wire is more stable and tight, so as to achieve the purpose of guiding the connecting wire by the auxiliary line drawing instrument for measuring the change of the elastic modulus of a concrete specimen.

[0018] By installing a rotating shaft at the top of the bottom plate, the rotating shaft can rotate, and the rotation of the rotating shaft will drive the rotating plate to rotate, and the rotation of the rotating plate can drive the shell at the top to rotate. When the device is placed, the shell can be rotated without moving the device to drive the connecting line and the moving block to rotate, so as to adjust the direction of the connecting line. When the rotating plate needs to be fixed, the fixing screws can be tightened to fix the rotating plate, so as to achieve the purpose of facilitating the adjustment of the device direction for the auxiliary line drawing instrument used to determine the change of the elastic modulus of the concrete specimen BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0021] Figure 3 For the utility model Figure 2 A partial cross-section at the center is an enlarged structural diagram;

[0022] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the leveling structure of the utility model from a side view;

[0023] Figure 5 It is a schematic diagram of a partial cross-sectional structure of a conductor structure of the utility model in a front view.

[0024] Explanation of the reference numerals in the figure: 1. Shell structure; 101. Shell; 102. Display screen; 103. Level; 104. Handle; 2. Wire structure; 201. Rotating groove; 202. Take-up wheel; 203. Rotating shaft; 204. Connecting plate; 205. Rotating wheel; 3. Rotating structure; 301. Rotating shaft; 302. Rotating plate; 303. Fixing screw; 4. Bottom plate; 5. Leveling structure; 501. Fixed plate; 502. Fixed block; 503. Threaded block; 504. Support foot; 505. Anti-slip groove; 6. Connecting line; 7. Moving block; 8. Receiving plate; 9. Laser transmitter. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 5 The utility model provides an embodiment: an auxiliary line drawing instrument for measuring the change of elastic modulus of a concrete specimen, comprising a bottom plate 4.

[0027] A rotating structure 3 is installed at the top of the base plate 4, and a leveling structure 5 is installed at the bottom end of the base plate 4. The leveling structure 5 includes a fixed plate 501, a fixed block 502, a threaded block 503, a support foot 504 and an anti-slip pattern 505. The fixed plate 501 is installed at the bottom end of the base plate 4, and a fixed block 502 is installed at the bottom end of the fixed plate 501. The bottom end of the fixed block 502 is movably connected with the threaded block 503. The threaded block 503 and the fixed block 502 form a threaded connection, and the outer diameter of the threaded block 503 is smaller than the outer diameter of the fixed block 502.

[0028] A support leg 504 is installed at the bottom end of the threaded block 503 . The bottom end of the support leg 504 is provided with anti-skid patterns 505 , and the anti-skid patterns 505 are arranged at equal intervals at the bottom end of the support leg 504 .

[0029] See attached Figure 1-2 and attached Figure 4As shown, the fixed block 502 and the threaded block 503 at the location of the fixed plate 501 form a threaded connection, and the threaded block 503 can rotate. The rotation of the threaded block 503 can drive the support leg 504 to rise and fall. The lifting of the support leg 504 can level the shell 101 and the moving block 7. The anti-skid pattern 505 can enhance the friction of the support leg 504. The level 103 can sense whether the device is level, and can also display the angle data on the display screen 102, so that the device can work stably on different concretes. After the shell 101 is placed, the moving block 7 can be grasped by the handle 104 to move. After the moving block 7 moves, the connecting line 6 can be driven to move. The connecting line 6 between the shell 101 and the moving block 7 can guide the paintbrush so that the paintbrush can draw along the connecting line 6. At the same time, the laser transmitter 9 can emit a laser, and the laser can be shot onto the receiving plate 8. The laser can allow the user to see the position of the connecting line 6 more intuitively. When the connecting line 6 is released, the length of the released connecting line 6 can be displayed on the display screen 102.

[0030] The rotating structure 3 includes a rotating shaft 301, a rotating plate 302 and a fixing screw 303. The rotating shaft 301 is installed at the top of the base plate 4. The rotating plate 302 is installed at the top of the rotating shaft 301, and a fixing screw 303 is installed on one side of the rotating plate 302. External threads are evenly arranged on the outer wall of the fixing screw 303, and internal threads that cooperate with the external threads are evenly arranged on the inner wall of the rotating plate 302. The fixing screw 303 is threadedly connected to the rotating plate 302.

[0031] See attached Figure 1-3 As shown, the rotating shaft 301 can rotate. The rotation of the rotating shaft 301 will drive the rotating plate 302 to rotate. The rotation of the rotating plate 302 can drive the shell 101 at the top to rotate. When the device is placed, the shell 101 can be rotated without moving the device to drive the connecting line 6 and the moving block 7 to rotate, so as to adjust the direction of the connecting line 6. When the rotating plate 302 needs to be fixed, the fixing screws 303 can be tightened to fix the rotating plate 302.

[0032] A shell structure 1 is installed on the top of the rotating structure 3 , and the shell structure 1 includes a shell 101 , a display screen 102 , a level 103 and a handle 104 .

[0033] The shell 101 is installed at the top of the rotating structure 3, a display screen 102 is installed at one end of the shell 101, a level 103 is installed at the top of one end of the shell 101, a handle 104 is installed at the top of the shell 101, a laser transmitter 9 is installed on one side of the shell 101, and a wire structure 2 is installed inside the shell 101.

[0034] The wire structure 2 includes a rotating groove 201, a take-up wheel 202, a rotating shaft 203, a connecting plate 204 and a rotating wheel 205. The rotating groove 201 is arranged inside the shell 101, the rotating shaft 203 is installed inside the rotating groove 201, and the take-up wheel 202 is installed on the inner side of the rotating shaft 203. The connecting plate 204 is installed on one side of the shell 101, and the rotating wheel 205 is installed on the inner side of the connecting plate 204, and the rotating wheels 205 are symmetrically distributed.

[0035] See attached Figure 2 and attached Figure 5 As shown, the take-up wheel 202 inside the rotating groove 201 can rotate along the rotating shaft 203, and the connecting line 6 can be wound on the take-up wheel 202. The take-up wheel 202 winds the connecting line 6 inside the shell 101 and the moving block 7. When the connecting line 6 is discharged, the connecting line 6 will pass between the two rotating wheels 205. The rotating wheel 205 on the inner side of the connecting plate 204 can rotate. The two rotating wheels 205 can cooperate to guide and flatten the connecting line 6, making the connecting line 6 more stable and tight.

[0036] A connecting line 6 is installed on one side of the housing 101 , a moving block 7 is installed on one side of the connecting line 6 , and a receiving plate 8 is installed on one side of the moving block 7 .

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An auxiliary line drawing instrument for measuring the change of elastic modulus of a concrete specimen, comprising a bottom plate (4); Features: A rotating structure (3) is installed at the top of the bottom plate (4), a housing structure (1) is installed at the top of the rotating structure (3), and the housing structure (1) comprises a housing (101), a display screen (102), a level (103) and a handle (104); The shell (101) is installed at the top of the rotating structure (3), a display screen (102) is installed at one end of the shell (101), a level (103) is installed at the top of one end of the shell (101), a handle (104) is installed at the top of the shell (101), a laser transmitter (9) is installed on one side of the shell (101), and a wire structure (2) is installed inside the shell (101); The wire structure (2) comprises a rotating groove (201), a wire take-up wheel (202), a rotating shaft (203), a connecting plate (204) and a rotating wheel (205); the rotating groove (201) is arranged inside a housing (101); a rotating shaft (203) is installed inside the rotating groove (201); and a wire take-up wheel (202) is installed inside the rotating shaft (203); the connecting plate (204) is installed on one side of the housing (101); a connecting wire (6) is installed on one side of the housing (101); a moving block (7) is installed on one side of the connecting wire (6); and a receiving plate (8) is installed on one side of the moving block (7).

2. The auxiliary line drawing instrument for measuring the change of elastic modulus of concrete specimen according to claim 1, characterized in that: Rotating wheels (205) are installed on the inner side of the connecting plate (204), and the rotating wheels (205) are symmetrically distributed.

3. The auxiliary line drawing instrument for measuring the change of elastic modulus of concrete specimen according to claim 1, characterized in that: The rotating structure (3) comprises a rotating shaft (301), a rotating plate (302) and a fixing screw (303); the rotating shaft (301) is mounted on the top of the bottom plate (4); the rotating plate (302) is mounted on the top of the rotating shaft (301); and the fixing screw (303) is mounted on one side of the rotating plate (302).

4. The auxiliary line drawing instrument for measuring the change of elastic modulus of concrete specimen according to claim 3, characterized in that: External threads are evenly arranged on the outer wall of the fixing screw (303), and internal threads matching the external threads are evenly arranged on the inner wall of the rotating plate (302). The fixing screw (303) and the rotating plate (302) are connected by threads.

5. The auxiliary line drawing instrument for measuring the change of elastic modulus of concrete specimen according to claim 1, characterized in that: A leveling structure (5) is installed at the bottom end of the base plate (4), and the leveling structure (5) comprises a fixing plate (501), a fixing block (502), a threaded block (503), a support foot (504) and an anti-slip groove (505). The fixing plate (501) is installed at the bottom end of the base plate (4), the fixing block (502) is installed at the bottom end of the fixing plate (501), and the bottom end of the fixing block (502) is movably connected to the threaded block (503), and the bottom end of the threaded block (503) is installed with a support foot (504).

6. The auxiliary line drawing instrument for measuring the change of elastic modulus of concrete specimen according to claim 5, characterized in that: The threaded block (503) and the fixed block (502) form a threaded connection, and the outer diameter of the threaded block (503) is smaller than the outer diameter of the fixed block (502).

7. The auxiliary line drawing instrument for measuring the change of elastic modulus of concrete specimen according to claim 5, characterized in that: The bottom end of the support foot (504) is provided with anti-skid patterns (505), and the anti-skid patterns (505) are arranged at equal intervals at the bottom end of the support foot (504).

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