CN213875689U

CN213875689U - Concrete shrinkage test device

Info

Publication number: CN213875689U
Application number: CN202022718662.6U
Authority: CN
Inventors: 王海江; 罗宇航
Original assignee: Mianzhu Zhucheng Concrete Co ltd
Current assignee: Mianzhu Zhucheng Concrete Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-08-03
Anticipated expiration: 2030-11-23

Abstract

The utility model relates to a concrete shrinkage test device belongs to concrete check out test set's technical field, it includes the test bench, one side of test bench is provided with the fixed plate, the opposite side of test bench is provided with the fly leaf, fixed plate and fly leaf face between them parallel, the fixed slider that is provided with on the fly leaf, set up on the test bench and supply the gliding spout of slider, the orientation of seting up of spout parallels with the normal direction of fixed plate face, be provided with the spring in the spout, the spring has the trend that makes the slider move towards the fixed plate side all the time. This application has the effect of promoting test device's suitability.

Description

Concrete shrinkage test device

Technical Field

The application relates to the technical field of concrete detection equipment, in particular to a concrete shrinkage test device.

Background

The concrete can deform under the action of load or temperature and humidity, and mainly comprises elastic deformation, plastic deformation, shrinkage, temperature deformation and the like. The elastic deformation of concrete under short-term loading is mainly expressed by the modulus of elasticity. Under the action of long-term load, the stress is unchanged, the phenomenon that the strain is continuously increased is creep, the phenomenon that the strain is unchanged, and the phenomenon that the stress is continuously reduced is relaxation. The volume deformation due to hydration of cement, carbonization and water loss of set cement is called shrinkage.

The current chinese patent of No. CN211348237U discloses a concrete shrinkage test device for grant bulletin, including shockproof base, the fixed proof box that is provided with in top of shockproof base, be provided with the cushion chamber between shockproof base and the proof box, the cushion chamber is provided with main shockproof post, main shockproof post side is provided with vice shockproof post, the air cushion layer is installed to the inner wall bottom of proof box, experimental inner box is installed at the top of air cushion layer, shockproof layer is installed to the inner wall bottom of experimental inner box, the test bench is installed at the top on shockproof layer, the surface mounting of test bench has fixed leather collar, the inside of fixed leather collar is provided with the concrete piece, the both ends of concrete piece are provided with the measuring head, the side fixedly connected with measurement support of concrete piece is kept away from to the measuring head. When the concrete block is used, concrete is poured into a corresponding mould to enable the size of the concrete to be matched with that of the fixed leather ring, and then the solidified concrete block is placed into the fixed leather ring on the test bed to stand for the experimental result.

In view of the above-mentioned related art, the inventor believes that the fitting performance of the testing device is poor because the size of the fixing leather ring cannot be changed, so that the testing device can only test a concrete block with a single size.

SUMMERY OF THE UTILITY MODEL

In order to promote test device's suitability, this application provides a concrete shrinkage test device.

The application provides a concrete shrinkage test device adopts following technical scheme:

the concrete shrinkage test device comprises a test bed, wherein a fixed plate is arranged on one side of the test bed, a movable plate is arranged on the other side of the test bed, the surfaces of the fixed plate and the movable plate are parallel, a sliding block is fixedly arranged on the movable plate, a sliding groove for the sliding block to slide is formed in the test bed, the forming direction of the sliding groove is parallel to the normal direction of the surface of the fixed plate, a spring is arranged in the sliding groove, and the spring has the tendency of always enabling the sliding block to move towards the side of the fixed plate.

By adopting the technical scheme, when the concrete slab to be detected is placed on the test bed, the movable plate is moved firstly, so that the movable plate moves towards one side departing from the fixed plate; during the process, the sliding block slides in the sliding groove, the spring is compressed, the distance between the movable plate and the fixed plate is enlarged, then the concrete plate is placed between the movable plate and the fixed plate, then the movable plate is loosened, the sliding block and the movable plate are pushed to move towards the side of the fixed plate under the restoring force of the spring until the concrete plate is clamped by the movable plate and the fixed plate, and at the moment, the concrete plate is fixed; the fixed plate and the movable plate are arranged, so that the test device can meet the requirements of concrete plates with different sizes, and the adaptability of the test device is improved.

Optionally, a toothed plate is arranged on the surface of the movable plate facing the fixed plate, and a plurality of vertical teeth are uniformly distributed on the toothed plate.

Through adopting above-mentioned technical scheme, when fly leaf and fixed plate carried out the centre gripping to concrete slab, the vertical teeth on the pinion rack was laminated mutually with the concrete slab, can make concrete slab be difficult for moving along the length direction of fixed plate, has further increased concrete slab's stability to can promote the detection precision when detecting.

Optionally, the test bench is provided with a hanging component, the hanging component comprises a hanging ring, a hanging rope and a fixed column, the hanging rope is arranged on the surface of the movable plate, which deviates from the fixed plate, the hanging ring is arranged at one end, away from the movable plate, of the hanging rope, the fixed column is arranged on the surface of the test bench, and when the hanging ring is hung on the fixed column, the spring is in a compressed state.

By adopting the technical scheme, when placing the concrete slab, the hanging ring is firstly hung on the fixed column, so that the fixed plate and the movable plate are positioned at the position with the largest distance therebetween, and workers do not need to hold the movable plate with one hand and place the concrete slab with the other hand; the worker can place the concrete slab between the fixed plate and the movable plate, and the concrete slab has the advantage of being convenient for the worker to operate.

Optionally, a hook for hooking the hanging ring is arranged on the movable plate.

By adopting the technical scheme, when the hanging ring is taken down from the fixed column, the hanging ring is hung on the hook, and the hanging ring hanging device has the effect of being convenient for placing the hanging ring.

Optionally, be provided with the wind instrument board in the spout, work as the slider slides in the spout, the wind instrument board shelters from the opening of spout all the time.

Through adopting above-mentioned technical scheme, the slider slides in the spout, drives the organ board shrink or extend, and at this in-process, the organ board shelters from the opening of spout all the time, can prevent better that the piece on the test bench from entering into the spout in the condition emergence that causes the hindrance to the normal slip process of slider.

Optionally, dial indicators are symmetrically arranged on the test bed on two sides of the sliding groove, the dial indicators are slidably arranged on the test bed, and the sliding direction of the dial indicators is perpendicular to the opening direction of the sliding groove.

By adopting the technical scheme, after the concrete slab is fixed, the dial indicators on the two sides are slid to be abutted against the concrete slab, so that the shrinkage performance of the concrete slab is detected; has the advantage of convenient detection.

Optionally, sliding blocks are symmetrically arranged on the test bed, sliding grooves for the sliding blocks to slide are symmetrically formed in the test bed, one sliding block corresponds to one sliding groove, and the dial indicator is arranged on the corresponding sliding block.

Through adopting above-mentioned technical scheme, remove the amesdial, drive the sliding block that corresponds and slide in the sliding tray, have the effect that makes the sliding process of amesdial comparatively stable.

Optionally, the tight bolt of support is worn to be equipped with by the screw thread on the sliding block, support the one end of tight bolt and pass behind the sliding block with the inner bottom wall butt of sliding tray.

Through adopting above-mentioned technical scheme, remove the amesdial to set position after, twist and support the bolt tightly for the tip that supports the bolt is mutually the butt with the inner bottom wall of sliding tray, thereby can prevent the sliding block better and slide in the sliding tray, make the amesdial be difficult for sliding by oneself, increased the stability that the amesdial detected time measuring.

In summary, the present application includes at least one of the following beneficial technical effects:

due to the arrangement of the fixed plate and the movable plate, the test device can meet the requirements of concrete plates with different sizes, and the adaptability of the test device is improved;

due to the arrangement of the toothed plates, the stability of the concrete slab is further improved, so that the detection precision in detection can be improved;

due to the arrangement of the hanging connection assembly, a worker can place the concrete slab between the fixed plate and the movable plate conveniently, and the operation of the worker is facilitated.

Drawings

Fig. 1 is a schematic view of the overall structure of the present application.

Fig. 2 is a sectional view for showing the internal structure of the chute and the hitch assembly.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a partially exploded and cross-sectional view for showing the mating relationship of the sliding block and the sliding groove.

Description of reference numerals: 1. a test bed; 11. a fixing plate; 12. a movable plate; 121. a slider; 122. a toothed plate; 1221. vertical teeth; 123. hooking; 13. a chute; 14. a spring; 15. a sliding groove; 2. a hitch assembly; 21. hanging a ring; 22. hanging a rope; 23. fixing a column; 3. a piano plate; 4. a dial indicator; 41. a slider; 411. the bolt is pressed tightly.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses concrete shrinkage test device. Referring to fig. 1, a concrete shrinkage test device includes a test bed 1, wherein the cross-sectional shape of the test bed 1 is rectangular; a fixing plate 11 is arranged on one side of the test bed 1, the cross section of the fixing plate 11 is rectangular, and the length direction of the fixing plate 11 is consistent with that of the test bed 1; a movable plate 12 is arranged on one side of the test bed 1, which is opposite to the fixed plate 11, and the plate surfaces of the fixed plate 11 and the movable plate 12 are parallel. Two dial indicators 4 are symmetrically arranged in the length direction of the test bed 1, the two dial indicators 4 are arranged on the test bed in a sliding mode, and the two dial indicators 4 can slide oppositely or slide back to back.

Referring to fig. 1 and 2, a sliding block 121 is fixedly arranged on the bottom wall of the movable plate 12, a sliding chute 13 for the sliding block 121 to slide is arranged on the test bed 1, and the arranging direction of the sliding chute 13 is parallel to the normal direction of the plate surface of the fixed plate 11; a spring 14 is provided in the slide groove 13, one end of the spring 14 is connected to the inner side wall of the slide groove 13, and the other end is connected to the slider 121, and the spring 14 tends to move the slider 121 toward the fixed plate 11 at all times. The face of the movable plate 12 facing the fixed plate 11 is provided with a toothed plate 122, the toothed plate 122 is evenly provided with a plurality of vertical teeth 1221, the vertical teeth 1221 are vertical strip clamping teeth with triangular cross sections, the length direction of the vertical teeth 1221 is perpendicular to the table top of the test bed 1, and the vertical teeth 1221 are arranged along the length direction of the movable plate 12.

Before the test, firstly, the movable plate 12 is moved, the distance between the movable plate 12 and the fixed plate 11 is increased, and a concrete slab is conveniently placed; then, placing the concrete slab between the movable plate 12 and the fixed plate 11, then loosening the movable plate 12, and driving the movable plate 12 to move towards the fixed plate 11 under the restoring force of the spring 14 until the plate surfaces of the movable plate 12 and the fixed plate 11 are both abutted against the concrete slab, so that the clamping of the concrete slab is realized; the distance between the fixed plate 11 and the movable plate 12 is adjustable, so that the requirements of concrete plates with different sizes can be met, and the adaptability of the whole testing device is improved. When the movable plate 12 and the fixed plate 11 clamp the concrete slab, the toothed plate 122 is arranged, so that the concrete slab is not easy to move along the length direction of the test bed 1, and the stability of the concrete slab is increased.

Referring to fig. 2 and 3, a hanging assembly 2 is arranged on the test bed 1, the hanging assembly 2 comprises a hanging ring 21, a hanging rope 22 and a fixed column 23, the hanging rope 22 is fixedly arranged on the surface of the movable plate 12 away from the fixed plate 11, the hanging rope 22 is positioned at a position close to the bottom of the movable plate 12, and the hanging ring 21 is fixedly arranged at one end of the hanging rope 22 away from the movable plate 12; the fixing column 23 is in a cylindrical shape, the fixing column 23 is fixedly arranged on the table top of the test bed 1, and the length direction of the fixing column 23 is perpendicular to the table top of the test bed 1; when the hanging ring 21 is hung on the fixed column 23, the spring 14 is in a compressed state. The surface of the movable plate 12 away from the fixed plate 11 is provided with a hook 123, and the hook 123 is used for hooking the hanging ring 21. Two piano plates 3 are arranged in the sliding groove 13, and the two piano plates 3 are respectively positioned at two sides of the sliding block 121; one end of the piano plate 3 is connected with the slide block 121, and the other end is connected on the inner side wall of the chute 13; when the sliding block 121 slides in the sliding groove 13, the organ plate 3 compresses or extends, and the opening of the sliding groove 13 is always shielded by the organ plate 3, so that the situation that the sliding process of the sliding block 121 is blocked due to the fact that the scraps on the test bed 1 enter the sliding groove 13 can be well prevented.

When a concrete slab needs to be placed on the test bed 1, firstly, the hanging ring 21 is pulled, so that the hanging ring 21 is hung on the fixed column 23; in the process, the movable plate 12 is driven to move, the sliding block 121 slides in the sliding groove 13, and the spring 14 is compressed, so that the distance between the movable plate 12 and the fixed plate 11 is enlarged, and a concrete slab is conveniently placed; after the concrete slab is placed, the hanging ring 21 is separated from the fixed column 23 and then is hung with the hook 123, and at the moment, the movable plate 12 is driven to move under the restoring force of the spring 14 until the concrete slab is clamped; the arrangement of the hanging connection assembly 2 has the effect of facilitating the placement of the concrete slab by a worker.

Referring to fig. 4, the test bed 1 is symmetrically provided with sliding blocks 41 along the length direction thereof, the test bed 1 is symmetrically provided with sliding grooves 15 for the sliding blocks 41 to slide, and one sliding block 41 corresponds to one sliding groove 15; the cross section of the sliding block 41 is in a T shape, so that the sliding block 41 is not easy to be separated from the sliding groove 15, and the sliding stability of the sliding block 41 is improved; a tightly-abutting bolt 411 is arranged on the sliding block 41 in a threaded manner, and the length direction of the tightly-abutting bolt 411 is vertical to the table top of the test bed 1; one end of the tightening bolt 411 passes through the sliding block 41 and then abuts against the inner bottom wall of the sliding groove 15; be provided with a amesdial 4 on the sliding block 41, the measuring stick end of two amesdials 4 is just right, is convenient for detect concrete slab's shrinkage.

When detecting, at first utilize fixed plate 11 and fly leaf 12 with concrete slab to carry out the centre gripping, guarantee concrete slab's stability, then slide the sliding block 41 of both sides in sliding tray 15 respectively for micrometer 4's test bar and concrete slab's lateral wall looks butt just can detect, and the position of utilizing the bolt 411 fixed sliding block 41 that supports tightly at last increases micrometer 4 and detects time stability.

The implementation principle of the concrete shrinkage test device in the embodiment of the application is as follows: when the shrinkage detection of the concrete slab is required, firstly, the distance between the fixed plate 11 and the movable plate 12 is adjusted, and then the concrete slab is placed between the fixed plate 11 and the movable plate 12; under the action of the spring 14, the movable plate 12 is driven to move, and the concrete slab is clamped and fixed; the distance between the fixed plate 11 and the movable plate 12 is adjustable, so that concrete plates with different sizes can be conveniently detected, and the adaptability of the device is improved; and the dial indicators 4 are arranged on the two sides of the test bed 1, so that the concrete slab can be conveniently detected.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a concrete shrinkage test device which characterized in that: including test bench (1), one side of test bench (1) is provided with fixed plate (11), the opposite side of test bench (1) is provided with fly leaf (12), fixed plate (11) and fly leaf (12) face parallel between them, the fixed slider (121) that is provided with on fly leaf (12), set up on test bench (1) and supply gliding spout (13) of slider (121), the normal direction of seting up the direction and fixed plate (11) face of spout (13) parallels, be provided with spring (14) in spout (13), spring (14) have the trend that makes slider (121) move towards fixed plate (11) side all the time.

2. A concrete shrinkage test apparatus according to claim 1, wherein: the face, facing the fixed plate (11), of the movable plate (12) is provided with a toothed plate (122), and a plurality of vertical teeth (1221) are uniformly distributed on the toothed plate (122).

3. A concrete shrinkage test apparatus according to claim 2, wherein: be provided with on test bench (1) and articulate subassembly (2), articulate subassembly (2) including link (21), string rope (22) and fixed column (23), hang rope (22) and set up on fly leaf (12) deviates from the face of fixed plate (11), link (21) set up the one end of keeping away from fly leaf (12) in string rope (22), fixed column (23) set up on the mesa of test bench (1), work as when link (21) articulate on fixed column (23), spring (14) are in the state of compressed.

4. A concrete shrinkage test apparatus according to claim 3, wherein: the movable plate (12) is provided with a hook (123) for hanging the hanging ring (21).

5. A concrete shrinkage test apparatus according to claim 1, wherein: be provided with wind instrument board (3) in spout (13), work as slider (121) slide in spout (13), wind instrument board (3) shelter from the opening of spout (13) all the time.

6. A concrete shrinkage test apparatus according to claim 1, wherein: the dial indicator (4) is symmetrically arranged on two sides of the sliding groove (13) on the test bed (1), the dial indicator (4) is arranged on the test bed (1) in a sliding mode, and the sliding direction of the dial indicator (4) is perpendicular to the opening direction of the sliding groove (13).

7. A concrete shrinkage test device according to claim 6, wherein: the test bench (1) is provided with sliding blocks (41) symmetrically, sliding grooves (15) for the sliding blocks (41) to slide are symmetrically formed in the test bench (1), one sliding block (41) corresponds to one sliding groove (15), and the dial indicator (4) is arranged on the corresponding sliding block (41).

8. A concrete shrinkage test device according to claim 7, wherein: the sliding block (41) is provided with a tightening bolt (411) in a penetrating mode through threads, and one end of the tightening bolt (411) penetrates through the sliding block (41) and then is abutted to the inner bottom wall of the sliding groove (15).