CN211426131U - Concrete experimental apparatus that shocks resistance - Google Patents
Concrete experimental apparatus that shocks resistance Download PDFInfo
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- CN211426131U CN211426131U CN201921996964.0U CN201921996964U CN211426131U CN 211426131 U CN211426131 U CN 211426131U CN 201921996964 U CN201921996964 U CN 201921996964U CN 211426131 U CN211426131 U CN 211426131U
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- 230000035939 shock Effects 0.000 title claims abstract description 9
- 238000002474 experimental method Methods 0.000 claims abstract description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 40
- 229910052742 iron Inorganic materials 0.000 claims description 20
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a concrete experimental apparatus that shocks resistance relates to concrete experiment technical field. This concrete experimental apparatus that shocks resistance, including base and articulated elements, the top fixed mounting of base has the curb plate, the top fixed mounting of curb plate has the roof, the top fixed mounting of roof has the stopper, the stopper is located the middle part of roof, the top of stopper vertically runs through and has seted up the sliding hole, the built-in movable rod of sliding hole, movable rod and stopper sliding connection set up, the bottom of movable rod vertically runs through the roof and extends to the below of roof, the one end fixed mounting that the movable rod is located the roof below has the electro-magnet, the one end that the movable rod is located the roof top is provided with the spacing handle of semi-circle, one side of stopper transversely sets up. The utility model discloses simple structure, the operation is convenient, utilizes the electromagnetic adsorption device to improve the experiment accuracy to a certain extent.
Description
Technical Field
The utility model relates to a concrete experiment technical field specifically is a concrete experimental apparatus that shocks resistance.
Background
The level of impact resistance to compression and impact of concrete is an important aspect in evaluating the dynamic performance of concrete. In airport runways, highway pavements, bridge decks and even modern protection structure projects with impact resistance, explosion resistance and earthquake resistance, higher requirements are put forward on the impact resistance and the pressure impact resistance of concrete.
A concrete bending impact test method is specified in national standard GB/T21120 of cement concrete and mortar synthetic fiber of the people's republic of China: and pasting a strain gauge at the maximum strain position of a tension area on the lower surface of the test piece, pasting an accelerometer on the upper part of the test piece, and connecting the strain gauge and the accelerometer with a dynamic data acquisition system together by using a lead. And a steel base plate is placed at the geometric center point of the surface of the test piece, and a hollow sleeve is placed on the base plate. And placing a drop hammer above the sleeve, wherein the bottom surface of the drop hammer head is flush with the upper edge of the sleeve, and the drop hammer impacts the test piece freely. Each impact starts from the free fall of the drop hammer to the completion of the complete rest of the drop hammer after the impact. Repeating the steps for a plurality of times until the first crack is generated on the tensile surface of the lower part, and recording the impact times, namely the initial crack impact times. And then, continuously carrying out multiple times of impact, wherein the crack at the bottom of the test piece develops upwards and penetrates through the whole interface, and observing and determining the times of damage impact by combining naked eyes with a magnifying glass.
However, the experimental device used in the standard comprises a flat steel plate base, a drop hammer and the like, and because the manual drop hammer is adopted in the operation process of an experimenter, the impact resistance test can be completed by often needing multiple impacts, and the manual drop hammer causes the height, the initial speed and the motion track of the drop hammer to be easy to deviate, so that the experimental error is easy to cause, and the accuracy of test data is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a concrete experimental apparatus that shocks resistance to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a concrete experimental apparatus that shocks resistance, including base and articulated elements, the top fixed mounting of base has the curb plate, the top fixed mounting of curb plate has the roof, the top fixed mounting of roof has the stopper, the stopper is located the middle part of roof, the top of stopper vertically runs through and has seted up the sliding hole, the built-in movable rod of sliding hole, movable rod and stopper sliding connection set up, the bottom of movable rod vertically runs through the roof and extends to the below of roof, the one end fixed mounting that the movable rod is located the roof below has the electro-magnet, the one end that the movable rod is located the roof top is provided with semi-circular spacing handle, one side of stopper transversely sets.
The inner side walls of the side plates are all provided with chutes, sliders are arranged in the chutes, the chutes and the sliders are arranged in a sliding connection mode, an auxiliary rod is fixedly arranged on one side wall of each slider, which is positioned inside each side plate, the free ends of the auxiliary rods and the two sides of each electromagnet are fixedly arranged, the bottom of each electromagnet is provided with an arc-shaped groove, an iron ball is arranged in each arc-shaped groove, the outer wall of one side of each side plate is hinged to a connecting rod through an articulated piece, the top of each connecting rod is fixedly provided with a guide pipe, the top of each base is fixedly provided with two groups of supporting blocks which are sequentially arranged at the top of each base, the supporting blocks are positioned on the, concrete experiment board and backing plate do not have the connection, and one side fixed mounting of curb plate installation articulated elements has the battery, the bottom of battery and the top fixed connection of base, and the bottom fixed mounting of base has the supporting leg.
Preferably, one end of the movable rod above the top plate is provided with a semicircular limiting handle.
Preferably, the curb plate quantity is two sets of installs in proper order in the top of base, and the measurement scale has been seted up to the outer wall of curb plate.
Preferably, the limiting bolt is arranged in the threaded hole, the outer wall of the limiting bolt is provided with a thread matched with the thread of the threaded hole, the threaded hole is in threaded connection with the limiting bolt, and the threaded hole is communicated with the sliding hole.
Preferably, the top end of the connecting rod is in a hoop shape, and the guide pipe is located right below the iron ball.
Preferably, the number of the supporting legs is four, the supporting legs are sequentially arranged at the bottom of the base, and the bottom of each supporting leg is provided with an anti-skidding paster.
Compared with the prior art, the beneficial effects of the utility model are that:
this concrete experimental apparatus that shocks resistance, this device is from taking the scale, can directly select the height that needs the whereabouts on the device, the height need be got again to the test of having avoided at every turn to the certain extent, this device adopts be that the electro-magnet adsorbs the iron ball, thereby the initial velocity of iron ball whereabouts has been restricted to a certain extent, a stand pipe has been placed to this device in the iron ball below, when restricting the iron ball movement track, the friction has also been avoided causing the influence to the initial velocity of iron ball, the height that has avoided the drop hammer is different to a certain extent, initial velocity differs and the movement track differs the deviation that causes, experimental error has also been reduced to a certain extent, the accuracy nature of test data has been improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a middle stopper of the present invention;
fig. 3 is a top view of the middle link of the present invention.
In the figure: 1 movable rod, 2 spacing bolts, 3 roof, 4 spouts, 5 sliders, 6 auxiliary rods, 7 spacing blocks, 8 electromagnets, 9 iron balls, 10 guide pipes, 11 articulated elements, 12 connecting rods, 13 backing plates, 14 concrete experiment boards, 15 bases, 16 supporting legs, 17 storage batteries, 18 side plates, 19 supporting blocks and 20 threaded holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a concrete impact resistance experiment device comprises a base 15 and an articulated piece 11, side plates 18 are fixedly installed at the top of the base 15, the number of the side plates 18 is two, the side plates are sequentially installed at the top of the base 15, the outer wall of each side plate 18 is provided with a metering scale, a top plate 3 is fixedly installed at the top of each side plate 18, a limiting block 7 is fixedly installed at the top of each top plate 3, the limiting block 7 is located in the middle of each top plate 3, the top of each limiting block 7 is longitudinally provided with a sliding hole in a penetrating mode, a movable rod 1 is arranged in each sliding hole, the movable rods 1 and the limiting blocks 7 are arranged in a sliding connection mode, the bottom of each movable rod 1 longitudinally penetrates through each top plate 3 and extends to the lower portion of each top plate 3, an electromagnet 8 is fixedly installed at one end of each movable rod 1 located below each top plate 3, a threaded hole, the outer wall of the limiting bolt 2 is provided with a thread matched with the thread of the threaded hole 20.
The inner side walls of the side plates 18 are all provided with sliding grooves 4, sliding blocks 5 are arranged in the sliding grooves 4, the sliding grooves 4 and the sliding blocks 5 are arranged in a sliding connection mode, an auxiliary rod 6 is fixedly installed on one side wall of each sliding block 5 positioned inside each side plate, the free end of each auxiliary rod 6 is fixedly installed on the two sides of each electromagnet 8, an arc-shaped groove is formed in the bottom of each electromagnet 8, each iron ball 9 is arranged in each arc-shaped groove, each electromagnet 8 adsorbs each iron ball 9, and accordingly stable and unchangeable initial speed of each iron ball 9 is given, one outer wall of one side of each side plate 18 is hinged to a connecting rod 12 through a hinged part 11, a guide pipe 10 is fixedly installed at the top of each connecting rod 12, the top end of each connecting rod 12 is of a hoop type, each guide pipe 10 is positioned under each iron ball 9, each guide pipe 10 can limit falling tracks of the iron balls 9, supporting blocks, the concrete experiment board 14 is placed on the top of the supporting block 19, the backing plate 13 is placed on the top of the concrete experiment board 14, the supporting block 19, the concrete experiment board 14 and the backing plate 13 are not connected, one side of the side plate 18, which is provided with the hinge piece 11, is fixedly provided with the storage battery 17, the bottom of the storage battery 17 is fixedly connected with the top of the base 15, the bottom of the base 15 is fixedly provided with the supporting legs 16, the number of the supporting legs 16 is four groups, which are sequentially arranged on the bottom of the base 15, the bottom of the supporting legs 16 is provided with the anti-skidding paster, when an experiment is needed, the concrete experiment board 14 is placed on the supporting block 19, the backing plate 13 is placed on the concrete experiment board 14, the electromagnet 8 is driven by the pulling movable rod 1 to drive the auxiliary rod 6 to slide to a needed height, the movable rod 1 is extruded by rotating the limiting bolt 2, the movable rod 1 is, the pushing connecting rod 12 drives the guide pipe 10 to be right below the iron ball, the storage battery 17 is closed, the iron ball 9 hits the concrete experiment plate 14 through the guide pipe 10, and the experiment result is recorded.
When needing the experiment, place concrete experiment board 14 on supporting shoe 19, place backing plate 13 on concrete experiment board 14, pulling movable rod 1 orders about electro-magnet 8 and drives auxiliary rod 6 and slide to required height, rotate 2 extrusion movable rod 1 of spacing bolt, fixed movable rod 1, it makes electro-magnet 8 magnetize to open battery 17, it adsorbs to put into the recess of electro-magnet 8 bottom with iron ball 9, it orders about stand pipe 10 to under the iron ball to promote connecting rod 12, close battery 17, concrete experiment board 14 is hit through stand pipe 10 to iron ball 9, record the experimental result, the experiment is accomplished.
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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a concrete experimental apparatus that shocks resistance, includes base (15) and articulated elements (11), its characterized in that: a side plate (18) is fixedly mounted at the top of the base (15), a top plate (3) is fixedly mounted at the top of the side plate (18), a limiting block (7) is fixedly mounted at the top of the top plate (3), the limiting block (7) is located in the middle of the top plate (3), a sliding hole is longitudinally formed in the top of the limiting block (7) in a penetrating mode, a movable rod (1) is arranged in the sliding hole, the movable rod (1) is slidably connected with the limiting block (7), the bottom of the movable rod (1) longitudinally penetrates through the top plate (3) and extends to the position below the top plate (3), an electromagnet (8) is fixedly mounted at one end, located below the top plate (3), of the movable rod (1) is provided with a semicircular limiting handle, and a threaded hole (20) is transversely formed in one side of the limiting block;
the concrete experiment board is characterized in that sliding grooves (4) are formed in the inner side walls of the side plates (18), sliding blocks (5) are arranged in the sliding grooves (4), the sliding grooves (4) are arranged in sliding connection with the sliding blocks (5), the sliding blocks (5) are located on one side wall of the inner portion of each side plate, free ends of the auxiliary rods (6) are fixedly installed on two sides of an electromagnet (8), arc-shaped grooves are formed in the bottoms of the electromagnets (8), iron balls (9) are arranged in the arc-shaped grooves, one side outer wall of each side plate (18) is hinged to a connecting rod (12) through a hinge piece (11), guide pipes (10) are fixedly installed at the tops of the connecting rods (12), supporting blocks (19) are fixedly installed at the tops of the bases (15), the supporting blocks (19) are sequentially installed at the tops of the bases (15) in two groups, the supporting blocks (19) are located on, backing plate (13) have been placed at the top of concrete experiment board (14), and supporting shoe (19), concrete experiment board (14) and backing plate (13) do not have the connection, and one side fixed mounting that articulated elements (11) were installed in curb plate (18) has battery (17), the bottom of battery (17) and the top fixed connection of base (15), and the bottom fixed mounting of base (15) has supporting leg (16).
2. The concrete impact resistance experiment device of claim 1, which is characterized in that: one end of the movable rod (1) above the top plate (3) is provided with a semicircular limiting handle.
3. The concrete impact resistance experiment device of claim 1, which is characterized in that: the quantity of the side plates (18) is two, the side plates are sequentially arranged at the top of the base (15), and the outer walls of the side plates (18) are provided with metering scales.
4. The concrete impact resistance experiment device of claim 1, which is characterized in that: the limiting bolt (2) is arranged in the threaded hole (20), threads matched with the threads of the threaded hole (20) are formed in the outer wall of the limiting bolt (2), the threaded hole (20) is in threaded connection with the limiting bolt (2), and the threaded hole (20) is communicated with the sliding hole.
5. The concrete impact resistance experiment device of claim 1, which is characterized in that: the top end of the connecting rod (12) is in a hoop shape, and the guide pipe (10) is positioned right below the iron ball (9).
6. The concrete impact resistance experiment device of claim 1, which is characterized in that: the number of the supporting legs (16) is four, the four supporting legs are sequentially arranged at the bottom of the base (15), and anti-skidding patches are arranged at the bottoms of the supporting legs (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921996964.0U CN211426131U (en) | 2019-11-15 | 2019-11-15 | Concrete experimental apparatus that shocks resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921996964.0U CN211426131U (en) | 2019-11-15 | 2019-11-15 | Concrete experimental apparatus that shocks resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211426131U true CN211426131U (en) | 2020-09-04 |
Family
ID=72288853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921996964.0U Active CN211426131U (en) | 2019-11-15 | 2019-11-15 | Concrete experimental apparatus that shocks resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211426131U (en) |
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2019
- 2019-11-15 CN CN201921996964.0U patent/CN211426131U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220304 Address after: 063699 geloutuo Central Primary School, south of Tingli Line Road, geloutuo village, Guhe Town, leting County, Tangshan City, Hebei Province Patentee after: Leting Jianfeng Construction Engineering Co.,Ltd. Address before: 313201 No.20, xinxinwang, Shilin village, Xinshi Town, Deqing County, Huzhou City, Zhejiang Province Patentee before: Chen Yan |
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| TR01 | Transfer of patent right |