CN201844944U - Load holding device in concrete creep loading apparatus - Google Patents
Load holding device in concrete creep loading apparatus Download PDFInfo
- Publication number
- CN201844944U CN201844944U CN2010205906255U CN201020590625U CN201844944U CN 201844944 U CN201844944 U CN 201844944U CN 2010205906255 U CN2010205906255 U CN 2010205906255U CN 201020590625 U CN201020590625 U CN 201020590625U CN 201844944 U CN201844944 U CN 201844944U
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- spring
- loading
- load
- holding device
- concrete creep
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Abstract
The utility model discloses a load holding device in a concrete creep loading apparatus, comprising a base (1). A lower bearing plate (2) is installed on the base (1), and an inner spring (8) sleeved on a drawn lead screw (6) is arranged between the lower bearing plate (2) and a down press plate (4). The loading holding device is characterized in that an outer spring (3) is sleeved around the inner spring (8). The loading holding device has a simple structure, a small occupation area and a small volume, is convenient to load, is reliable to work and the like. In addition, during experiment, the loading range is large, the spring deformation is little, and stable loading can be maintained.
Description
Technical field
The utility model relates to a kind of concrete creep charger, holds the lotus device in particularly a kind of concrete creep load apparatus, holds the lotus device in a kind of specifically spring concrete creep load apparatus.
Background technology
Creeping is a kind of performance of material nonlinearity characteristic, and it makes the constitutive relation time to time change of material, for the stressed and deformation performance of xoncrete structure remarkable influence is arranged.The loading voltage-stabilizing system of Creep Loading Equipment can be divided into four kinds of lever, spring, spring lever formula and fluid pressure types.The spring Creep Loading Equipment is that present China uses maximum Creep Loading Equipment, and this device has that floor area is little, volume is little, loading is convenient and advantage such as reliable operation.The spring Creep Loading Equipment is by the lifting jack loading, keeps the stable of load by compression spring, because the relative displacement meeting that concrete creep causes reduces load, therefore will repeatedly adjust load.The present spring Creep Loading Equipment part that comes with some shortcomings, little as load, poor to the test capability of varying number test specimen; Spring deflection is big, makes the load instability.
Summary of the invention
The purpose of this utility model provides a kind of the maintenance and holds the lotus device in the stable concrete creep load apparatus of load.
The utility model is to adopt following technical scheme to realize its goal of the invention, hold the lotus device in a kind of concrete creep load apparatus, it comprises base, and bottom deck is installed on the base, be provided with the inner spring that is enclosed within on the tension screw mandrel between bottom deck and the lower platen, around inner spring, be with outer spring.
The utility model adds the load stepless action on all springs in order to guarantee, and camber of spring is controlled in certain elastic range, and the barycenter place of bottom deck is provided with abutment sleeve, inner spring in the middle of abutment sleeve is with outward.
As a kind of improvement, outer spring in the middle of middle inner spring described in the utility model is with outward.
The utility model is in level in order to guarantee lower platen under load action, the adjacent both sides of lower platen are provided with level tube.
Because adopt technique scheme, the utility model has been realized goal of the invention preferably, it is simple in structure, have that floor area is little, volume is little, loading is convenient and advantage such as reliable operation, the loading scope is big in process of the test, and spring deflection is little, and it is stable to keep load.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the A-A cut-open view of Fig. 1;
Fig. 3 is the structural representation of the utility model embodiment 2;
Fig. 4 is the B-B cut-open view of Fig. 3;
Fig. 5 is the structural representation of the utility model embodiment 3;
Fig. 6 is the C-C cut-open view of Fig. 5;
Fig. 7 is the structural representation of the utility model embodiment 4;
Fig. 8 is the D-D cut-open view of Fig. 7.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment 1:
As seen from Figure 1, Figure 2, hold the lotus device in a kind of concrete creep load apparatus, it comprises base 1, and bottom deck 2 is installed on the base 1, is provided with the inner spring 8 that is enclosed within on the tension screw mandrel 6 between bottom deck 2 and the lower platen 4, is with outer spring 3 around inner spring 8.
In order to guarantee that lower platen 4 is in level under load action, the adjacent both sides of lower platen 4 are provided with level tube 5.
The described tension screw mandrel 6 of present embodiment is two.
When the utility model uses, install load bringing device 7 on the lotus device holding, all members and instrument are endured strict scrutiny to meet the requirements just can load afterwards.Judge by in loading procedure, surveying the strain variation of reading the test specimen symmetric position whether test specimen meets the requirement of axial compression, after meeting the requirements by adjustment, just test can be added load and store.
Spring of the present utility model is inside and outside two-layer, and highly consistent, the design of inside and outside two-layer spring can reduce the size of single spring, thereby reduces whole device size.Its spring is to fix its position by tension screw mandrel 6, and the barycenter of all spring integral body and two ball pivots carry out reasonable combination to two types of springs on same vertical line, with the loading that realizes different class of loading with hold the lotus requirement.
Embodiment 2:
By Fig. 3, Fig. 4 as can be known, the utility model adds the load stepless action on all springs in order to guarantee, and camber of spring is controlled in certain elastic range, and the barycenter place of bottom deck 2 is provided with abutment sleeve 10, inner spring 11 in the middle of abutment sleeve 10 outer being with.
As a kind of improvement, outer spring 9 in the middle of middle inner spring 11 outer being with described in the utility model.
The described tension screw mandrel 6 of present embodiment is two.
All springs fix its position by tension screw mandrel 6 and abutment sleeve 10, and the rigidity of middle inner spring 11, middle outer spring 9 is big, distribute symmetrically, spring stress is even, when amount of spring compression was 20 ㎜～50 ㎜, spring still was in the elastic force balance state, and the lotus ability of holding of device is better.
Surplus with embodiment 1.
Embodiment 3:
By Fig. 5, Fig. 6 as can be known, the described tension screw mandrel 6 of present embodiment is three.
Surplus with embodiment 2.
Embodiment 4:
By Fig. 7, Fig. 8 as can be known, the described tension screw mandrel 6 of present embodiment is four.
Surplus with embodiment 2.
Claims (5)
1. hold the lotus device in the concrete creep load apparatus, it comprises base (1), bottom deck (2) is installed on the base (1), is provided with the inner spring (8) that is enclosed within on the tension screw mandrel (6) between bottom deck (2) and the lower platen (4), it is characterized in that being with outer spring (3) on every side at inner spring (8).
2. hold the lotus device in the concrete creep load apparatus according to claim 1, it is characterized in that the barycenter place of bottom deck (2) is provided with abutment sleeve (10), abutment sleeve (10) is outer be with in the middle of inner spring (11).
3. hold the lotus device in the concrete creep load apparatus according to claim 2, outer spring (9) in the middle of it is characterized in that inner spring (11) is outer in the middle of described and being with.
4. hold the lotus device in the concrete creep load apparatus according to claim 1 and 2, it is characterized in that the adjacent both sides of lower platen (4) are provided with level tube (5).
5. hold the lotus device in the concrete creep load apparatus according to claim 3, it is characterized in that the adjacent both sides of lower platen (4) are provided with level tube (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205906255U CN201844944U (en) | 2010-11-04 | 2010-11-04 | Load holding device in concrete creep loading apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205906255U CN201844944U (en) | 2010-11-04 | 2010-11-04 | Load holding device in concrete creep loading apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201844944U true CN201844944U (en) | 2011-05-25 |
Family
ID=44039831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205906255U Expired - Fee Related CN201844944U (en) | 2010-11-04 | 2010-11-04 | Load holding device in concrete creep loading apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201844944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621253A (en) * | 2017-10-27 | 2018-01-23 | 天津建仪机械设备检测有限公司 | Concrete deformation detecting device |
-
2010
- 2010-11-04 CN CN2010205906255U patent/CN201844944U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621253A (en) * | 2017-10-27 | 2018-01-23 | 天津建仪机械设备检测有限公司 | Concrete deformation detecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20111104 |