CN208653930U - A kind of modulus of elasticity of concrete analyzer - Google Patents

Abstract

The utility model provides a kind of modulus of elasticity of concrete analyzer, comprising: the lower ring and multiple amesdials between upper ring and a lower ring of upper ring and upper ring center overlapping of axles；Using the modulus of elasticity of concrete analyzer of the utility model, before test process, inverted U fixed plate is connected to ring up and down simultaneously and does not need to be dismantled in use process so that this modulus of elasticity of concrete analyzer is structure as a whole, it is therefore prevented that the loss of components；During the test, it can clear by third cylinder bubble, intuitively show deformation deviation caused by press machine compression, it is more traditional to ask the mode of difference more convenient and intuitive two amesdial readings, secondly, the inverted U of the utility model is able to maintain rotation, does not influence the pressing action of press machine.

Description

A kind of modulus of elasticity of concrete analyzer

Technical field

The utility model relates to concrete test detection technique fields, and in particular to a kind of modulus of elasticity of concrete measurement Instrument.

Background technique

Concrete is the important construction material of major factory such as industry, national defence, civil buildings, bridge, tunnel and power station, right The accurate test of mechanical performance of concrete, detected with quantitative methodological science building material, structural elements and processing half at The quality condition of product is the key that guarantee construction engineering quality.Elasticity modulus is the important mechanical property of concrete, it is reflected Relationship between stress suffered by concrete and produced strain is to calculate the deformation of reinforced concrete structure, crack developing and big One of parameter necessary to the temperature stress of volume concrete.

Test according to existing national standards " standard for test methods of mechanical properties of ordinary concrete " (GB50081-2002) It is required that measuring instrument should meet technical requirements in " dial test indicator product quality point etc. ", two, amesdial (0 grade or 1 grade)；Or essence Degree is not less than other instrument of 0.001mm.Concrete sample is having a size of 150mm × 150mm × 300mm standard prism, examination Angle between the adjacent surface of part should be 90 °, and tolerance must not exceed 0.5 °；The dimensional tolerance of each side length of test specimen must not exceed 1mm. It can be seen that national standard is very stringent for the required precision of test.Analyzer should be mounted on the middle line of test specimen two sides in test It is upper and symmetrically with the both ends of test specimen.Then test specimen is placed on pressure testing machine, is directed at its axle center with the center line of lower platen, Pressure testing machine is started, adjusts ball seat when top board and test specimen are close, keeps its contact balanced.Existing modulus of elasticity of concrete Analyzer is when adjusting ball seat enables test specimen with top board even contact, it is found that there is inconvenience adjusting the angle by range estimation more, Often there is deviation, easily cause unbalance stress, amesdial reading in left and right is overproof can not to continue the problem of testing.

Application No. is the Chinese patents of 201220499238.X, disclose a kind of concrete static(al) compression elastic modulus detection Instrument installs level additional in the upside of the fastening screw corresponding position of upper ring front and back end two of existing concrete elastic modulus tester Bubble, effect are can to assist adjustment lower platen ball seat angle, so that test specimen is balanced with top board and uniformly contact.Test specimen is separately made Positioning auxiliary ruler is T-type structure, and there are two drawing a point circular hole on ruler, and circular hole position face answers test specimen middle line, before installing instruments, Auxiliary positioning point can be drawn in each side of test specimen using positioning rule, convenient for accurately installing instruments.Meanwhile it is existing compared with other Analyzer, complete positioning after, be required to by the parts such as positioning plate dismantle, be easy to cause part to lose, there is an urgent need to It is improved.

Utility model content

To solve the above problems, the utility model provides a kind of modulus of elasticity of concrete analyzer.It is practical new using this The modulus of elasticity of concrete analyzer of type, before test process, inverted U fixed plate is connected to ring up and down simultaneously, so that this coagulation Native elastic modulus tester is structure as a whole, and does not need to be dismantled in use process, it is therefore prevented that the loss of components；It is testing In the process, deformation deviation caused by press machine compression can clear by third cylinder bubble, be intuitively shown, it is more traditional Ask the mode of difference more convenient and intuitive two amesdial readings, secondly, the inverted U of the utility model is able to maintain rotation, The pressing action of press machine is not influenced.

To realize the technical purpose, the technical solution of the utility model is a kind of modulus of elasticity of concrete analyzer, packet It includes: the lower ring and multiple amesdials between upper ring and a lower ring of upper ring and upper ring center overlapping of axles,

The upper ring and a lower ring level wears test block fixing bolt, and test block fixing bolt is screwed onto upper ring and a lower ring, to Concrete test block is surveyed to be set in upper ring and a lower ring；Test block fixing bolt end is fixedly installed and concrete test block to be measured The clamping plate of contact；

Affixed support rod on the lower ring, post upper are rotatablely connected inverted U fixed plate, and it is solid that upper ring cap is located at inverted U In fixed board；Fastening screw is arranged in inverted U fixed plate two sides, for inverted U fixed plate to be fastened on outside upper ring；Inverted U fixed plate Upper setting cylinder bubble.

Further, the support rod is telescopic rod, and the lower ring outer rim is symmetrical arranged two telescopic rods, and the inverted U is solid Fixed board lower end is rotatably connected on telescopic rod upper end respectively.

Further, limited block is arranged in the support rod end, for the rotary spacing to the inverted U fixed plate.

Further, the first cylinder bubble and the second cylinder bubble is respectively set in the inverted U fixed plate both upper ends thereof, U-shaped Third cylinder bubble is set in the middle part of fixed plate；Third cylinder bubble trend is parallel to U type fixed plate upper length direction, and first Cylinder bubble and the second cylinder bubble are perpendicular to third cylinder bubble.

Further, amesdial fastening screw is arranged in the upper ring side, and the amesdial is tight by amesdial fastening screw Gu on upper ring；

Setting contact bar on the lower ring, the contact of the amesdial are contacted to the upper surface of contact bar.

As the preferred of the utility model, it is based on above content, unlike, the contact bar is screwed onto the lower ring On, and the upper surface of the contact bar is greater than the diameter of contact bar and amesdial contact.

As the preferred of the utility model, it is based on above content, unlike, the clamping plate is arc or strip One kind, for sufficiently being contacted with concrete test block to be measured.

Further, fixed rubber wear-resisting layer on the clamping plate.

The utility model has the beneficial effects that:,

Using the modulus of elasticity of concrete analyzer of the utility model, before test process, inverted U fixed plate connects simultaneously Upper and lower ring so that this modulus of elasticity of concrete analyzer is structure as a whole does not need to be dismantled in use process, it is therefore prevented that The loss of components；During the test, it can clear by third cylinder bubble, intuitively show that press machine compression is made At deformation deviation, it is more traditional ask the mode of difference more convenient and intuitive two amesdials reading, secondly, the utility model Inverted U is able to maintain rotation, does not influence the pressing action of press machine.

Detailed description of the invention

Fig. 1 is that structural schematic diagram is put in inverted U fixed plate side in the utility model modulus of elasticity of concrete analyzer；

Fig. 2 be in the utility model modulus of elasticity of concrete analyzer telescopic rod elongation after structural schematic diagram；

Fig. 3 is the fixed structure schematic diagram of the utility model modulus of elasticity of concrete analyzer；

Fig. 4 is the part A enlarged structure schematic diagram in the utility model Fig. 3；

Fig. 5 is the structural schematic diagram of the utility model cylinder bubble；

Fig. 6 is schematic view of the mounting position of the utility model cylinder bubble on inverted U fixed plate top.

Specific embodiment

The technical solution of the utility model will be clearly and completely described below.

As shown in Figure 1, a kind of modulus of elasticity of concrete analyzer, comprising: upper ring 1, the lower ring with upper ring center overlapping of axles 2 and multiple amesdials 3 between upper ring and a lower ring,

The upper ring 1 and lower 2 level of ring wear test block fixing bolt 6, and test block fixing bolt 3 is screwed onto upper ring and a lower ring In, concrete test block to be measured is set in upper ring and a lower ring；6 end of test block fixing bolt is fixedly installed and coagulation to be measured The clamping plate 8 of native test block contact；

Affixed support rod on the lower ring, post upper are rotatablely connected inverted U fixed plate 10, and upper ring cap is located at inverted U In fixed plate 10；Fastening screw 7 is arranged in 10 two sides of inverted U fixed plate, for inverted U fixed plate 10 to be fastened on outside upper ring 1；? Cylinder bubble 12 is set in U-shaped fixed plate 10.Before on-test, concrete test block is disposed across in smooth plane, this is surveyed The ring set up and down for determining instrument is located at outside concrete test block, stretches telescopic rod, so that inverted U fixed plate bypasses upper ring 1, and is in Fig. 2 State pushes telescopic rod, adjusts the position of lower ring 2, so that first is in center to third air level, and tightens on lower ring Test block fixing bolt 6；Ring 1 is moved up, until upper ring conforms under inverted U fixed plate 10, and tightens the examination on ring Block fixing bolt 6.The level first of inverted U fixed plate 10 of the utility model secures lower ring 2, and then level secures ring. After fixing ring up and down, test block fixing bolt 6 is unclamped, telescopic rod is pulled up, inverted U fixed plate 10 is turned to such as Fig. 1 institute In the state of showing, amesdial 3 returns to zero, and starts press machine, is loaded into the initial load value F0 of 0.5MPa, keep dead load 60s and The deformation reading of every measuring point amesdial 3 is recorded in later 30s.Should immediately continuously and uniformly loading to stress be shaft center compression resistant it is strong 1/3 payload values of degree keep the deformation for recording each measuring point amesdial 3 in dead load 60s and 30s afterwards to read.It needs Illustrate, it, should be again according to third cylinder water when the ratio between the difference of the above deformation values and their average values are greater than 20% It steeps after position adjusts ring angle up and down and repeats to test.Ensure it is no longer overproof after with identical speed off-load to benchmark stress 0.5MPa Corresponding initial load value simultaneously holds lotus.With identical speed loading to payload values, then 60s dead load is kept, finally with identical speed Off-load is spent to initial load value, at least carries out the circulation of precompressed twice.After completing last time precompressed, 60s initial load is kept Value records two sides amesdial 3 in subsequent 30s and reads, then with same loading speed loading to payload values, then keeps 60s Dead load, and record two sides amesdial 3 in subsequent 30s and read.It is last that surveyed elastic mould value is calculated according to formula.It needs It is noted that during the experiment, the third cylinder bubble 12 of the utility model is in the position in Fig. 1, if concrete tries It tilts, can clearly, intuitively be shown by third cylinder bubble caused by block pressure is uneven, it is more traditional to two Amesdial reading asks the mode of difference more convenient and intuitive.Meanwhile the inverted U fixed plate 10 of the utility model is connected to simultaneously Upper and lower ring does not need to be dismantled in use process, it is therefore prevented that zero so that this modulus of elasticity of concrete analyzer is structure as a whole The loss of component, while not influencing the pressure test of press machine again.

Further, the support rod is telescopic rod 9, and the lower ring outer rim is symmetrical arranged two telescopic rods 9, the inverted U 10 lower end of fixed plate is rotatably connected on 9 upper end of telescopic rod respectively.

Further, as shown in figure 4, limited block 11 is arranged in 9 end of the telescopic rod, for the inverted U fixed plate 10 Rotary spacing.That is, the telescopic rod of the utility model is vertically welded on lower ring, inverted U fixed plate 10 is around flexible When bar 9 rotates, by the design of limited block 11, inverted U fixed plate can quickly be rotated to the state vertical with lower ring, so as to Quickly lower ring is adjusted to horizontality.

Further, as shown in Figure 5 and Figure 6,10 both upper ends thereof of inverted U fixed plate be respectively set the first cylinder bubble and Third cylinder bubble 12 is arranged in second cylinder bubble, U-shaped fixed plate middle part；Third cylinder bubble trend is parallel to U-shaped fixed plate Upper length direction, the first cylinder bubble and the second cylinder bubble are perpendicular to third cylinder bubble.In conjunction with the three of the utility model A cylinder bubble can quickly adjust lower ring to horizontality.

Further, amesdial fastening screw 4 is arranged in the upper ring side, and the amesdial 3 passes through amesdial fastening screw Tight 4 is solid on upper ring 1；

Setting contact bar 5 on the lower ring, the contact of the amesdial are contacted to the upper surface of contact bar.

As the preferred of the utility model, it is based on above content, unlike, the contact bar 5 is screwed onto the lower ring On, and the upper surface of the contact bar is greater than the diameter of contact bar and amesdial contact.After fixing ring up and down, rotation can be passed through Turn release lever 5, so that rotation release lever comes into full contact under the contact of the amesdial.

As the preferred of the utility model, it is based on above content, unlike, the clamping plate 8 is arc or strip One kind, for sufficiently and concrete test block to be measured contact.

Further, fixed rubber wear-resisting layer on the clamping plate 8.

For those of ordinary skill in the art, without departing from the concept of the present invention, may be used also To make several modifications and improvements, these are all within the protection scope of the present invention.

Claims (8)

1. a kind of modulus of elasticity of concrete analyzer characterized by comprising upper ring, with the lower ring of upper ring center overlapping of axles and Multiple amesdials between upper ring and a lower ring, it is characterised in that:

The upper ring and a lower ring level wears test block fixing bolt, and test block fixing bolt is screwed onto upper ring and a lower ring, to be measured mixed Solidifying soil test block is set in upper ring and a lower ring；Test block fixing bolt end is fixedly installed to be contacted with concrete test block to be measured Clamping plate；

Affixed support rod on the lower ring, post upper are rotatablely connected inverted U fixed plate, and upper ring cap is located at inverted U fixed plate It is interior；Fastening screw is arranged in inverted U fixed plate two sides, for inverted U fixed plate to be fastened on outside upper ring；It is set in inverted U fixed plate Set cylinder bubble.

2. modulus of elasticity of concrete analyzer according to claim 1, which is characterized in that the support rod is telescopic rod, The lower ring outer rim is symmetrical arranged two telescopic rods, and inverted U fixed plate lower end is rotatably connected on telescopic rod upper end respectively.

3. modulus of elasticity of concrete analyzer according to claim 2, which is characterized in that the support rod end setting limit Position block, for the rotary spacing to the inverted U fixed plate.

4. modulus of elasticity of concrete analyzer according to claim 1-3, which is characterized in that the inverted U is solid The first cylinder bubble and the second cylinder bubble is respectively set in fixed board both upper ends thereof, and third cylinder bubble is arranged in the middle part of U-shaped fixed plate； Third cylinder bubble trend be parallel to U-shaped fixed plate upper length direction, the first cylinder bubble and the second cylinder bubble perpendicular to Third cylinder bubble.

5. modulus of elasticity of concrete analyzer according to claim 1, which is characterized in that

Amesdial fastening screw is arranged in the upper ring side, and the amesdial is fastened on upper ring by amesdial fastening screw；

Setting contact bar on the lower ring, the contact of the amesdial are contacted to the upper surface of contact bar.

6. modulus of elasticity of concrete analyzer according to claim 5, which is characterized in that the contact bar is screwed onto described On lower ring, and the upper surface of the contact bar is greater than the diameter of contact bar and amesdial contact.

7. modulus of elasticity of concrete analyzer according to claim 1, which is characterized in that the clamping plate is arc or length One kind of bar shaped, for sufficiently being contacted with concrete test block to be measured.

8. modulus of elasticity of concrete analyzer according to claim 7, which is characterized in that fixed rubber on the clamping plate Wearing layer.