CN211477904U - Concrete splitting tensile strength's experimental auxiliary device - Google Patents
Concrete splitting tensile strength's experimental auxiliary device Download PDFInfo
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- CN211477904U CN211477904U CN202020198712.XU CN202020198712U CN211477904U CN 211477904 U CN211477904 U CN 211477904U CN 202020198712 U CN202020198712 U CN 202020198712U CN 211477904 U CN211477904 U CN 211477904U
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Abstract
The utility model discloses a concrete splitting tensile strength's experimental auxiliary device, the on-line screen storage device comprises a base, two hydraulic cylinder of lower extreme fixedly connected with of base, two bracing pieces of upper end fixedly connected with of the flexible end of hydraulic cylinder, two the common fixedly connected with roof in upper end of bracing piece, two common sliding connection has the movable platen on the bracing piece, it is provided with a locking screw to run through on the movable platen, locking screw's upper end is rotated and is connected with the holding down plate, the both sides of base all have the rack through powerful spring elastic connection. The utility model has the advantages that along with the tensile test, the pressure of the top plate and the fixed pressing plate on the concrete is increased, the concrete is clamped more tightly, and the phenomenon that the concrete is separated along with the increase of the tensile force when the tensile strength test is carried out is effectively prevented; because roof and stationary platen are to the clamping dynamics of concrete more and more big, avoid the concrete material to drop and injure the staff by a crashing object.
Description
Technical Field
The utility model relates to a concrete detection technical field especially relates to concrete splitting tensile strength's experimental auxiliary device.
Background
The concrete is artificial stone which is prepared by taking cement as a main cementing material, adding water, sand, stones and chemical additives and mineral admixtures if necessary, mixing the materials according to a proper proportion, uniformly stirring, densely molding, curing and hardening. Concrete is mainly divided into two stages and states: plastic state before setting and hardening, namely fresh concrete or concrete mixture; a hard state after hardening, i.e. hardened concrete or concrete; the tensile property of concrete is one of the basic mechanical properties.
Among the prior art, when the splitting tensile strength to the concrete detects, generally prevent the concrete material between two anchor clamps, then provide the pulling force through the hydraulic press, then carry out tensile test to the concrete, nevertheless along with experimental the going on, equipment is also bigger and bigger to the pulling force of concrete, and the condition that the centre gripping dynamics made the concrete to drop from anchor clamps inadequately takes place easily, and in addition, when the concrete material when the landing, still can the accident pound the staff.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art, and provides the test auxiliary device for the concrete splitting tensile strength, which has the advantages that along with the progress of the tensile test, the pressure of the top plate and the fixed pressing plate on the concrete is increased, the concrete is clamped more tightly, and the phenomenon that the concrete is separated along with the increase of the pulling force when the tensile strength test is carried out is effectively prevented; because roof and stationary platen are to the clamping dynamics of concrete more and more big, avoid the concrete material to drop and injure the staff by a crashing object.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
concrete splitting tensile strength's experimental auxiliary device, the on-line screen storage device comprises a base, two hydraulic cylinder of lower extreme fixedly connected with of base, two bracing pieces of upper end fixedly connected with of the flexible end of hydraulic cylinder, two the common fixedly connected with roof in upper end of bracing piece, two common sliding connection has the movable platen on the bracing piece, it is provided with a locking screw to run through on the movable platen, the upper end of locking screw is rotated and is connected with the stationary platen, the both sides of base all have the rack through powerful spring elastic connection, the lower extreme of roof is rotated and is connected with the threaded rod, the lower extreme of threaded rod runs through the movable platen, threaded rod and movable platen threaded connection, the lower extreme fixedly connected with of threaded rod and rack toothing's gear.
Preferably, the lower end of the locking screw is fixedly connected with a hand wheel, a rubber pad is glued on the hand wheel, and anti-skid grains are uniformly distributed on the surface of the rubber pad.
Preferably, the lower extreme fixedly connected with supporting leg of base, the lower extreme fixedly connected with mount pad of supporting leg.
Preferably, the mounting seat is fixedly connected with the ground through an expansion screw.
Preferably, the top plate and one side opposite to the fixed pressing plate are provided with anti-skid protrusions.
The utility model discloses following beneficial effect has:
1. along with the tensile test, the top plate and the fixed pressing plate have higher and higher pressure on the concrete, so that the concrete is clamped more tightly, and the phenomenon that the concrete is separated along with the increase of the tensile force during the tensile strength test is effectively prevented;
2. because roof and stationary platen are to the clamping dynamics of concrete more and more big, avoid the concrete material to drop and injure the staff by a crashing object.
Drawings
Fig. 1 is a schematic structural view of a test auxiliary device for concrete splitting tensile strength provided by the utility model;
fig. 2 is the utility model provides a concrete splitting tensile strength's experimental auxiliary device's side structure schematic diagram.
In the figure: the device comprises a base 1, a hydraulic oil cylinder 2, supporting legs 3, a mounting seat 4, a threaded rod 5, a supporting rod 6, a fixed pressing plate 7, a movable pressing plate 8, a locking screw 9, a rack 10, a gear 11, a strong spring 12 and a top plate 13.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-2, concrete splitting tensile strength's experimental auxiliary device, including base 1, two hydraulic cylinder 2 of lower extreme fixedly connected with of base 1, two bracing pieces 6 of the upper end fixedly connected with of the flexible end of hydraulic cylinder 2, the common fixedly connected with roof 13 in upper end of two bracing pieces 6, common sliding connection has movable platen 8 on two bracing pieces 6, it is provided with a locking screw 9 to run through on the movable platen 8, locking screw 9's lower extreme fixedly connected with hand wheel, the veneer has the rubber pad on the hand wheel, the surperficial equipartition of rubber pad has anti-skidding line.
The upper end of locking screw 9 is rotated and is connected with stationary platen 7, and the both sides of base 1 all have rack 10 through powerful spring 12 elastic connection, and the lower extreme of roof 13 is rotated and is connected with threaded rod 5, and the lower extreme of threaded rod 5 runs through dynamic pressure board 8, and threaded rod 5 and dynamic pressure board 8 threaded connection, the lower extreme fixedly connected with of threaded rod 5 and rack 10 meshed gear 11.
After the concrete is clamped, because the movable distance of the fixed pressing plate 7 is very small, the strong spring 12 can effectively prevent the hydraulic oil cylinder 2 from overlarge pulling force and damaging the concrete.
The lower extreme fixedly connected with supporting leg 3 of base 1, the lower extreme fixedly connected with mount pad 4 of supporting leg 3, mount pad 4 is through inflation screw and ground fixed connection.
The side of the top plate 13 opposite to the fixed pressing plate 7 is provided with anti-skid projections.
The utility model discloses a theory of operation does:
the concrete that will wait to detect is placed between roof 13 and stationary platen 7, then make stationary platen 7 compress tightly the concrete through rotatory locking screw 5, when carrying out tensile strength test, hydraulic cylinder 2's switch is opened to the operator, two hydraulic cylinder 2 are to both sides pulling concrete, in-process gear 11 emergence removal at the pulling, and then drive threaded rod 5 and rotate, threaded rod 5 rotates and makes movable platen 8 move up, and then make stationary platen 7 more tight with the concrete centre gripping, effectually prevented when carrying out tensile strength test, along with tensile increase, the phenomenon that the concrete emergence breaks away from.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The test auxiliary device for the concrete splitting tensile strength comprises a base (1) and is characterized in that the lower end of the base (1) is fixedly connected with two hydraulic cylinders (2), the upper ends of the telescopic ends of the hydraulic cylinders (2) are fixedly connected with two supporting rods (6), the upper ends of the two supporting rods (6) are fixedly connected with a top plate (13) together, the two supporting rods (6) are connected with a movable platen (8) together in a sliding manner, a locking screw (9) penetrates through the movable platen (8), the upper end of the locking screw (9) is rotatably connected with a fixed platen (7), two sides of the base (1) are both elastically connected with racks (10) through strong springs (12), the lower end of the top plate (13) is rotatably connected with a threaded rod (5), and the lower end of the threaded rod (5) penetrates through the movable platen (8), the threaded rod (5) is in threaded connection with the movable platen (8), and a gear (11) meshed with the rack (10) is fixedly connected to the lower end of the threaded rod (5).
2. The concrete splitting tensile strength test auxiliary device according to claim 1, wherein a hand wheel is fixedly connected to the lower end of the locking screw (9), a rubber pad is glued on the hand wheel, and anti-skid lines are uniformly distributed on the surface of the rubber pad.
3. The concrete splitting tensile strength test auxiliary device according to claim 1, wherein the lower end of the base (1) is fixedly connected with a supporting leg (3), and the lower end of the supporting leg (3) is fixedly connected with a mounting seat (4).
4. The concrete splitting tensile strength test auxiliary device according to claim 3, wherein the mounting seat (4) is fixedly connected with the ground through an expansion screw.
5. The concrete splitting tensile strength test auxiliary device according to claim 1, wherein the top plate (13) is provided with an anti-skid protrusion on one side opposite to the fixed pressing plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020198712.XU CN211477904U (en) | 2020-02-24 | 2020-02-24 | Concrete splitting tensile strength's experimental auxiliary device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020198712.XU CN211477904U (en) | 2020-02-24 | 2020-02-24 | Concrete splitting tensile strength's experimental auxiliary device |
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| CN211477904U true CN211477904U (en) | 2020-09-11 |
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| CN202020198712.XU Active CN211477904U (en) | 2020-02-24 | 2020-02-24 | Concrete splitting tensile strength's experimental auxiliary device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611856A (en) * | 2020-11-26 | 2021-04-06 | 重庆交通职业学院 | Microbial remediation test device capable of changing crack angle |
| CN113820201A (en) * | 2021-09-10 | 2021-12-21 | 国网江苏省电力有限公司建设分公司 | Concrete pile foundation external application grounding body tensile resistance detection device and application method thereof |
-
2020
- 2020-02-24 CN CN202020198712.XU patent/CN211477904U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611856A (en) * | 2020-11-26 | 2021-04-06 | 重庆交通职业学院 | Microbial remediation test device capable of changing crack angle |
| CN112611856B (en) * | 2020-11-26 | 2022-07-01 | 重庆交通职业学院 | Microbial remediation test device capable of changing crack angle |
| CN113820201A (en) * | 2021-09-10 | 2021-12-21 | 国网江苏省电力有限公司建设分公司 | Concrete pile foundation external application grounding body tensile resistance detection device and application method thereof |
| CN113820201B (en) * | 2021-09-10 | 2023-08-15 | 国网江苏省电力有限公司建设分公司 | Tensile property detection device for concrete pile foundation externally-applied grounding body and application method thereof |
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