CN215339852U

CN215339852U - Concrete contraction and expansion tester

Info

Publication number: CN215339852U
Application number: CN202121072781.7U
Authority: CN
Inventors: 于飞; 武彩霞; 刘洪阳
Original assignee: Dayuan Building Material Technology Co ltd
Current assignee: Dayuan Building Material Technology Co ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-12-28
Anticipated expiration: 2031-05-19

Abstract

The utility model relates to the technical field of concrete performance measurement, in particular to a concrete shrinkage and expansion tester which can conveniently and directly observe the length change of a concrete test block, reduce the generation of errors, improve the determination accuracy, conveniently adjust the measured temperature and humidity and improve the practicability; including the fixing base, the baffle, two sets of leading truck, two sets of shifting rings, two sets of connecting rod, the movable plate, two sets of slipmats, the fixed plate, slider and pointer, baffle installation is in fixing base top one side, two sets of leading trucks are all installed on the fixing base, two sets of shifting rings suit respectively to two sets of leading trucks on, two sets of connecting rod both ends are connected with movable plate and two sets of shifting rings respectively, two sets of slipmats are installed respectively on two sets of shifting ring inner walls, two sets of slipmats contact with two sets of leading trucks respectively, the fixed plate is installed at the fixing base rear end, be provided with the spout on the fixed plate, the slider is located the spout, and the slider can be followed the spout and removed, the pointer is connected with the slider.

Description

Concrete contraction and expansion tester

Technical Field

The utility model relates to the technical field of concrete performance measurement, in particular to a concrete shrinkage and expansion tester.

Background

As is well known, a concrete contraction and expansion instrument is an instrument for measuring the length (volume) change of a concrete sample under a specified temperature and humidity condition, and when the instrument is used, the concrete sample is placed on the measuring instrument, different temperatures and humidity are applied, and the volume change of the concrete sample is measured.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the concrete shrinkage expansion tester which can conveniently and directly observe the length change of the concrete test block, reduce the generation of errors, improve the determination accuracy, conveniently adjust the determined temperature and humidity and improve the practicability.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a concrete shrinkage and expansion apparatus, includes fixing base, baffle, two sets of leading trucks, two sets of shifting rings, two sets of connecting rod, movable plate, two sets of slipmats, fixed plate, slider and pointer, the baffle mounting is in fixing base top one side, two sets of leading trucks are all installed on the fixing base, two sets of shifting rings suit respectively to two sets of leading trucks on, two sets of connecting rod both ends are connected with movable plate and two sets of shifting rings respectively, two sets of slipmats are installed respectively on two sets of shifting ring inner walls to two sets of slipmats contact with two sets of leading trucks respectively, the fixed plate is installed in the fixing base rear end to be provided with the spout on the fixed plate, the slider is located the spout to the slider can be followed the spout and removed, the pointer is connected with the slider.

The fixed plate is characterized by further comprising a rubber sleeve and a moving handle, a sliding hole is formed in the rear side wall of the fixed plate and communicated with the sliding groove, the moving handle penetrates through the sliding hole and is connected with the sliding block, the rubber sleeve is sleeved on the outer wall of the sliding block, and the rubber sleeve is in contact with the inner wall of the sliding groove.

The adjustable clamping device comprises a baffle, two groups of positioning plates, two groups of clamping plates, two groups of adjusting screws and two groups of adjusting blocks, wherein the two groups of positioning plates are respectively arranged at two ends of the baffle, the two groups of adjusting screws are respectively screwed on the two groups of positioning plates and are respectively connected with the two groups of clamping plates, and the two groups of adjusting blocks are respectively arranged on the two groups of adjusting screws.

The improved humidifier comprises a fixing base, and is characterized by comprising a mounting frame, two sets of cylinders, two sets of lifting rods and a blocking cover, wherein the mounting frame is installed on the fixing base, the two sets of cylinders are installed on the mounting frame, the two ends of each lifting rod are connected with the output ends of the two sets of cylinders and the blocking cover respectively, an annular slot is formed in the top of the fixing base, and a temperature controller and a humidifier are arranged on the inner wall of the blocking cover.

Specifically, the humidifier includes water tank, case lid and supersonic generator, keep off and cover and be provided with fixed mouthful, water tank fixed mounting is in fixed mouthful department, the case lid is installed at the water tank top, supersonic generator installs inside the water tank to be provided with the multiunit through-hole at water tank lateral wall top.

Specifically, still include sealing washer and two sets of blotters, the sealing washer is installed in annular slot, two sets of blotters are installed respectively on two sets of splint.

(III) advantageous effects

Compared with the prior art, the utility model provides a concrete shrinkage and expansion tester, which has the following beneficial effects: placing a concrete test block to be detected on a fixed seat, aligning one end of the concrete test block with a baffle, adjusting the position of a movable plate, enabling two groups of connecting rods to move along two groups of guide frames through two groups of movable rings, enabling the movable plate to be in contact with the other end of the concrete test block, and improving the friction force between the two groups of movable rings and the two groups of guide frames through two groups of anti-skid pads, so that the position of the movable plate can be conveniently limited, the positions of a sliding block and a pointer can be moved, the sliding block moves along a sliding chute, the pointer is aligned with the position of the movable plate, the concrete can be tested at different temperatures and humidities, the concrete test block can expand or contract in the testing process, and after the testing is finished, if the concrete test block expands, the movable plate is directly pushed to move, the movable rings move along the guide frames, and when the movable plate contracts, the movable plate can be pushed finally, make it press close to with the concrete test block, can also set up the scale on the leading truck, only need survey the pointer and remove the distance between the ring can to can make things convenient for the length variation of direct observation concrete test block, reduce the production of error, improve and determine accurate the confirming, improve the practicality.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the right-hand side view of the present invention;

FIG. 3 is a schematic structural view of the humidifier of the present invention;

in the drawings, the reference numbers: 1. a fixed seat; 2. a baffle plate; 3. a guide frame; 4. a moving ring; 5. a connecting rod; 6. moving the plate; 7. a non-slip mat; 8. a fixing plate; 9. a slider; 10. a pointer; 11. a rubber sleeve; 12. a movable handle; 13. positioning a plate; 14. a splint; 15. adjusting the screw rod; 16. an adjusting block; 17. a mounting frame; 18. a cylinder; 19. a lifting rod; 20. a shield; 21. a water tank; 22. a box cover; 23. an ultrasonic generator; 24. a seal ring; 25. a cushion pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a concrete contraction and expansion tester comprises a fixed base 1, a baffle 2, two sets of guide frames 3, two sets of moving rings 4, two sets of connecting rods 5, a moving plate 6, two sets of anti-slip pads 7, a fixed plate 8, a sliding block 9 and a pointer 10, wherein the baffle 2 is installed on one side of the top of the fixed base 1, the two sets of guide frames 3 are both installed on the fixed base 1, the two sets of moving rings 4 are respectively sleeved on the two sets of guide frames 3, two ends of the two sets of connecting rods 5 are respectively connected with the moving plate 6 and the two sets of moving rings 4, the two sets of anti-slip pads 7 are respectively installed on the inner walls of the two sets of moving rings 4, the two sets of anti-slip pads 7 are respectively contacted with the two sets of guide frames 3, the fixed plate 8 is installed at the rear end of the fixed base 1, the sliding groove is arranged on the fixed plate 8, the sliding block 9 is positioned in the sliding groove, the sliding block 9 can move along the sliding groove, and the pointer 10 is connected with the sliding block 9, the rubber sleeve comprises a rubber sleeve 11 and a movable handle 12, a sliding hole is formed in the rear side wall of a fixing plate 8 and is communicated with a sliding groove, the movable handle 12 penetrates through the sliding hole and is connected with a sliding block 9, the rubber sleeve 11 is sleeved on the outer wall of the sliding block 9, the rubber sleeve 11 is in contact with the inner wall of the sliding groove, the rubber sleeve further comprises two groups of positioning plates 13, two groups of clamping plates 14, two groups of adjusting screws 15 and two groups of adjusting blocks 16, the two groups of positioning plates 13 are respectively arranged at two ends of a baffle plate 2, the two groups of adjusting screws 15 are respectively screwed through the two groups of positioning plates 13 and are respectively connected with the two groups of clamping plates 14, the two groups of adjusting blocks 16 are respectively arranged on the two groups of adjusting screws 15, the rubber sleeve further comprises a mounting rack 17, two groups of air cylinders 18, two groups of lifting rods 19 and a blocking cover 20, the mounting rack 17 is arranged on the fixing seat 1, the two groups of air cylinders 18 are both arranged on the mounting rack 17, and two ends of the two groups of lifting rods 19 are respectively connected with the output ends of air cylinders 18 and the blocking cover 20, the top of fixing base 1 is provided with annular slot, be provided with temperature controller and humidifier on keeping off cover 20 inner wall, the humidifier includes water tank 21, case lid 22 and supersonic generator 23, it is provided with fixed mouthful to keep off cover 20, water tank 21 fixed mounting is in fixed mouthful department, case lid 22 is installed at the water tank 21 top, supersonic generator 23 installs inside water tank 21, and be provided with the multiunit through-hole at 21 lateral wall tops of water tank, still include sealing washer 24 and two sets of blotter 25, sealing washer 24 installs in annular slot, two sets of blotter 25 install respectively on two sets of splint 14.

When the concrete contraction and expansion tester is used, a concrete test block to be tested is placed on the fixed seat 1, one end of the concrete test block is aligned with the baffle 2, the two groups of adjusting blocks 16 are rotated, the two groups of adjusting screws 15 drive the two groups of clamping plates 14 to move, the position of the concrete test block is clamped and fixed through the two groups of clamping plates 14, the fixing stability of the concrete test block can be improved through the two groups of buffer cushions 25, the position of the moving plate 6 is adjusted, the two groups of connecting rods 5 move along the two groups of guide frames 3 through the two groups of moving rings 4, the moving plate 6 is contacted with the other end of the concrete test block, the friction force between the two groups of moving rings 4 and the two groups of guide frames 3 can be improved through the two groups of anti-skid cushions 7, so that the position of the moving plate 6 can be conveniently limited, the moving handle 12 is held by hands to drive the sliding blocks 9 and the pointer 10 to move, so that the sliding blocks 9 move along the sliding chutes, the moving stability of the sliding block 9 is improved through the rubber sleeve 11, the pointer 10 is aligned with the position of the moving plate 6, the concrete can be tested under different temperatures and humidities, the concrete test block can expand or contract in the testing process, after the testing is finished, if the concrete test block expands, the moving plate 6 is directly pushed to move, the moving ring 4 moves along the guide frame 3, when the moving plate 6 is contracted, the moving plate 6 can be pushed to be close to the concrete test block, scales can be arranged on the guide frame 3, only the distance between the pointer 10 and the moving ring 4 needs to be measured, so that the length change of the concrete test block can be conveniently and directly observed, the generation of errors is reduced, the testing accuracy is improved, in the testing process, two groups of cylinders 18 can be controlled, two groups of lifting rods 19 can drive the blocking cover 20 to descend, the bottom end of the blocking cover 20 is inserted into the annular slot, improve the leakproofness between keeping off lid and the fixing base 1 through sealing washer 24, open case lid 22, to adding water in the water tank 21, closed case lid 22 to control temperature controller and humidifier work make water atomization and enter into to keeping off in the cover 20 through the multiunit through-hole through supersonic generator 23, thereby can conveniently adjust the temperature and the humidity of survey, improve the practicality.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

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. A concrete contraction and expansion tester is characterized by comprising a fixed seat (1), a baffle (2), two groups of guide frames (3), two groups of moving rings (4), two groups of connecting rods (5), a moving plate (6), two groups of anti-slip pads (7), a fixed plate (8), a sliding block (9) and a pointer (10), wherein the baffle (2) is arranged on one side of the top of the fixed seat (1), the two groups of guide frames (3) are arranged on the fixed seat (1), the two groups of moving rings (4) are respectively sleeved on the two groups of guide frames (3), two ends of the two groups of connecting rods (5) are respectively connected with the moving plate (6) and the two groups of moving rings (4), the two groups of anti-slip pads (7) are respectively arranged on the inner walls of the two groups of moving rings (4), the two groups of anti-slip pads (7) are respectively contacted with the two groups of guide frames (3), the fixed plate (8) is arranged at the rear end of the fixed seat (1), and a sliding groove is arranged on the fixed plate (8), the sliding block (9) is positioned in the sliding groove, the sliding block (9) can move along the sliding groove, and the pointer (10) is connected with the sliding block (9).

2. The concrete contraction and expansion tester according to claim 1, further comprising a rubber sleeve (11) and a moving handle (12), wherein a sliding hole is formed in the rear side wall of the fixing plate (8), the sliding hole is communicated with the sliding chute, the moving handle (12) penetrates through the sliding hole and is connected with the sliding block (9), the rubber sleeve (11) is sleeved on the outer wall of the sliding block (9), and the rubber sleeve (11) is in contact with the inner wall of the sliding chute.

3. The concrete contraction and expansion tester according to claim 2, further comprising two sets of positioning plates (13), two sets of clamping plates (14), two sets of adjusting screws (15) and two sets of adjusting blocks (16), wherein the two sets of positioning plates (13) are respectively installed at two ends of the baffle (2), the two sets of adjusting screws (15) are respectively screwed through the two sets of positioning plates (13) and are respectively connected with the two sets of clamping plates (14), and the two sets of adjusting blocks (16) are respectively installed on the two sets of adjusting screws (15).

4. The concrete contraction and expansion tester according to claim 3, further comprising a mounting rack (17), two sets of cylinders (18), two sets of lifting rods (19) and a baffle cover (20), wherein the mounting rack (17) is installed on the fixing base (1), the two sets of cylinders (18) are installed on the mounting rack (17), two ends of the two sets of lifting rods (19) are respectively connected with the output ends of the two sets of cylinders (18) and the baffle cover (20), the top of the fixing base (1) is provided with an annular slot, and the inner wall of the baffle cover (20) is provided with a temperature controller and a humidifier.

5. The concrete contraction and expansion tester according to claim 4, wherein the humidifier comprises a water tank (21), a tank cover (22) and an ultrasonic generator (23), the baffle cover (20) is provided with a fixing port, the water tank (21) is fixedly installed at the fixing port, the tank cover (22) is installed at the top of the water tank (21), the ultrasonic generator (23) is installed inside the water tank (21), and a plurality of groups of through holes are arranged at the top of the side wall of the water tank (21).

6. The concrete contraction and expansion tester according to claim 5, further comprising a sealing ring (24) and two sets of cushions (25), wherein the sealing ring (24) is installed in the annular slot, and the two sets of cushions (25) are respectively installed on the two sets of clamping plates (14).