CN214883723U - Stress adjusting device - Google Patents
Stress adjusting device Download PDFInfo
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- CN214883723U CN214883723U CN202121674960.8U CN202121674960U CN214883723U CN 214883723 U CN214883723 U CN 214883723U CN 202121674960 U CN202121674960 U CN 202121674960U CN 214883723 U CN214883723 U CN 214883723U
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- support
- supporting mechanism
- supporting
- telescopic
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Abstract
The utility model discloses a stress adjusting device, which comprises a first supporting mechanism, a second supporting mechanism, a third supporting mechanism, a telescopic mechanism and a movable connecting piece; the first side surface of the first supporting mechanism is parallel to the second side surface of the second supporting mechanism, and the first side surface is opposite to the second side surface; one side of the third supporting mechanism is arranged on the first side surface through a movable connecting piece, and the other side of the third supporting mechanism is arranged on the second side surface; the telescopic mechanism is arranged on the second side surface, a telescopic end of the telescopic mechanism is arranged on the first side surface, and the telescopic mechanism is used for adjusting the distance between the first side surface and the second side surface; the stress adjusting device can apply prestress to the foundation pit, and the foundation pit support failure caused by the deformation of the splayed support truss due to temperature is avoided.
Description
Technical Field
The utility model relates to a foundation ditch support equipment field especially relates to a stress adjustment device.
Background
With the development of underground engineering in China, the safety problem in the process of excavation of the foundation pit is more and more emphasized. In particular to deep foundation pit engineering which is sensitive to deformation of the surrounding environment and has higher requirements on the control of the enclosure deformation of the foundation pit, in the prior art, a foundation pit supporting mechanism (generally made of steel) is usually adopted to support and protect the enclosure of the foundation pit, so that the safety of a subway tunnel and surrounding buildings is not influenced by engineering construction, the ground settlement is controlled, and the deformation of the enclosure structure of the foundation pit is controlled; however, due to the influence of the environmental temperature and the like, particularly in summer, because the temperature difference is large at night in the day, the steel support deforms along with the temperature due to the action of expansion with heat and contraction with cold, the situation that the axial force of the steel support is insufficient can occur, and the enclosure deformation of the foundation pit is easily caused, so that the safety of the surrounding environment is influenced.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a stress adjustment device to solve the problems of the background art.
In order to achieve the above object, this embodiment provides a stress adjustment device, which includes a first support mechanism, a second support mechanism, a third support mechanism, a telescopic mechanism, and a movable connecting member;
the first side surface of the first supporting mechanism is parallel to the second side surface of the second supporting mechanism, and the first side surface is opposite to the second side surface;
one side of the third supporting mechanism is arranged on the first side surface through a movable connecting piece, and the other side of the third supporting mechanism is arranged on the second side surface;
the telescopic mechanism is arranged on the second side surface, a telescopic end of the telescopic mechanism is arranged on the first side surface, and the telescopic mechanism is used for adjusting the distance between the first side surface and the second side surface;
the first supporting mechanism or the second supporting mechanism is used for connecting a foundation pit supporting mechanism.
Furthermore, the telescopic mechanisms are multiple and are uniformly arranged between the first side surface and the second side surface.
Furthermore, the telescopic mechanism is a telescopic oil cylinder or a telescopic air cylinder.
Further, the number of the third supporting mechanisms is multiple, and the multiple third supporting mechanisms are uniformly arranged between the first side surface and the second side surface.
Furthermore, a slot is arranged on the third supporting mechanism.
Further, the third support mechanism comprises a first end plate, a second end plate and a support part;
the supporting part is H-shaped, and the slot is arranged on the supporting part;
one side of the supporting part is arranged on the first end plate, and the first end plate is arranged on the first side surface through the movable connecting piece;
the other side of the support portion is disposed on the second end plate, and the second end plate is disposed on the second side surface.
Further, the movable connecting piece comprises a guide part and a limiting part;
one end of the guide part is arranged on one side of the third support mechanism, the other end of the guide part penetrates through the first side face, and the first support mechanism is used for moving along the guide part;
the limiting portion is arranged at the other end of the guide portion, and the first side face is arranged between the limiting portion and one end of the guide portion.
Furthermore, a plurality of first supporting plates are arranged on the inner wall of the first supporting mechanism.
Furthermore, a plurality of second supporting plates are arranged on the inner wall of the second supporting mechanism.
Furthermore, one end of the inclined support assembly is arranged on the straight support assembly, and the other end of the inclined support assembly is arranged on the first support mechanism or the second support mechanism;
both ends of the straight supporting assembly are used for being arranged on the surrounding purlin.
Different from the prior art, in the above technical scheme, under the effect of flexible connectors, the interval between one side of third supporting mechanism and first side can change, and the flexible end of telescopic machanism can drive first supporting mechanism and move afterwards for the interval between first side and the second side increases or reduces. Therefore, the stress adjusting device can apply prestress to the foundation pit, and the foundation pit support failure caused by the deformation of the splayed support truss due to temperature is avoided.
Drawings
FIG. 1 is a schematic cross-sectional view of a stress adjustment apparatus according to an embodiment of the present invention;
FIG. 2 is a second schematic cross-sectional view of the stress adjustment apparatus of the present embodiment;
FIG. 3 is a schematic structural diagram of a third supporting mechanism in the present embodiment;
fig. 4 is a schematic structural diagram of the connection of the stress adjustment device, the foundation pit supporting mechanism and the purlin in this embodiment.
Description of reference numerals:
1. a first support mechanism;
11. a first side surface; 12. a first support plate;
2. a second support mechanism;
21. a second side surface; 22. a second support plate;
3. a third support mechanism;
31. a first end plate; 32. a second end plate; 33. a support portion; 331. grooving; 34. connecting holes;
4. a telescoping mechanism;
41. a telescopic end;
5. a movable connecting piece;
6. a foundation pit supporting mechanism;
61. a diagonal bracing assembly; 62. a straight support assembly; 63. a triangular assembly; 64. and (7) enclosing purlins.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1 and 4, the present embodiment provides a stress adjustment apparatus, which includes a first supporting mechanism 1, a second supporting mechanism 2, a third supporting mechanism 3, a telescopic mechanism 4 and a movable connecting member 5. The first side surface 11 of the first supporting mechanism 1 is parallel to the second side surface 21 of the second supporting mechanism 2, and the first side surface 11 is opposite to the second side surface 21. The first supporting mechanism 1 and the second supporting mechanism 2 are both used for connecting a foundation pit supporting mechanism 6. One side of the third supporting mechanism 3 is arranged on the first side surface 11 through a movable connecting piece 5, and the other side of the third supporting mechanism 3 is arranged on the second side surface 21. It should be noted that the movable connecting member 5 allows the distance between one side of the third supporting mechanism 3 and the first side surface 11 to be changed, but the movable connecting member 5 does not disengage from the first side surface 11. The telescopic mechanism 4 is arranged on the second side surface 21, a telescopic end 41 of the telescopic mechanism 4 is arranged on the first side surface 11, and the telescopic mechanism 4 is used for adjusting the distance between the first side surface 11 and the second side surface 21.
In the technical scheme, under the action of the movable connecting piece, the distance between one side of the third supporting mechanism and the first side surface can be changed, and then the telescopic end of the telescopic mechanism can drive the first supporting mechanism to move, so that the distance between the first side surface and the second side surface is increased or reduced. Therefore, the stress adjusting device can apply prestress to the foundation pit, and the foundation pit support failure caused by the deformation of the splayed support truss due to temperature is avoided.
Referring to fig. 1 and 2, when one telescopic mechanism 4 is provided, a large load may be applied to one telescopic mechanism 4, and the life of the one telescopic mechanism 4 may be affected. In this embodiment, the number of the telescopic mechanisms 4 is plural, and the plural telescopic mechanisms 4 are uniformly arranged between the first side surface 11 and the second side surface 21. The number of the telescopic mechanisms 4 may be 2, 3, 4 … …, for example, in fig. 1, the number of the telescopic mechanisms 4 is 2. Therefore, the load applied to the stress adjusting device can act on a plurality of telescopic mechanisms simultaneously, the telescopic mechanisms are prevented from being subjected to overlarge load, and the service life of each telescopic mechanism is further prolonged.
In this embodiment, the telescopic mechanism is a telescopic oil cylinder, a telescopic air cylinder or an electric telescopic rod. The following description will be given taking a telescopic cylinder as an example: the telescopic oil cylinder comprises a cylinder body, a piston and a piston rod; the piston is arranged in the cylinder body in a sliding mode, one end of the piston rod is arranged on the piston, the other end of the piston rod extends out of the cylinder body, and the piston rod is a telescopic end of the telescopic mechanism; the other end of the piston rod is arranged on the first side face, so that the piston rod can drive the first supporting mechanism to move when moving in the cylinder body along with the piston, and the stress adjusting device applies prestress to the foundation pit.
Referring to fig. 1 and fig. 2, it should be noted that, when the first supporting mechanism 1 moves, the first supporting mechanism 1 still remains parallel to the second supporting mechanism 2.
Referring to fig. 1 and 2, in the present embodiment, in order to ensure the stability of the first supporting mechanism 1 and the second supporting mechanism 2, a plurality of third supporting mechanisms 3 are provided, and the plurality of third supporting mechanisms 3 are uniformly disposed between the first side surface 11 and the second side surface 21. One side of each third supporting mechanism 3 is arranged on the first side surface 11 through a movable connecting piece 5. The number of the third support mechanisms 3 may be 2, 3, or 4 … …, for example, in fig. 1, the number of the third support mechanisms 3 is 3. It should be noted that a telescopic mechanism 4 may be disposed between the two third supporting mechanisms 3.
Referring to fig. 1 and 2, in the present embodiment, one side end of the third supporting mechanism 3 is parallel to the first side surface 11, and the other side end of the third supporting mechanism 3 is parallel to the second side surface 21.
Referring to fig. 3, in the present embodiment, in order to reduce the manufacturing cost of the third supporting mechanism 3, a slot 331 is disposed on the third supporting mechanism 3. Specifically, the third support mechanism 3 includes a first end plate 31, a second end plate 32, and a support portion 33. The support portion 33 has an H-shape, the slot 331 is disposed on the support portion 33, and the H-shaped support portion 33 has two slots 331. The support portion may be H-shaped steel. The material cost is reduced as far as possible under the condition of ensuring the strength of the supporting part. One side of the supporting portion 33 is disposed on the first end plate 31, the first end plate 31 is disposed on the first side surface 11 through the movable connecting member 5, and the distance between the first end plate 31 and the first side surface 11 is changed. The other side of the support portion 33 is disposed on the second end plate 32, and the second end plate 32 is disposed on the second side surface 21. It should be noted that the second end plate 32 is fixed to the second side 21.
In this embodiment, the movable connecting member includes a guide portion and a stopper portion. One end of the guide portion is arranged on one side of the third supporting mechanism, the other end of the guide portion penetrates through the first side face, and the first supporting mechanism is used for moving along the guide portion. The limiting portion is arranged at the other end of the guide portion, and the first side face is arranged between the limiting portion and one end of the guide portion.
In certain embodiments, the articulating member is a telescoping tube. Specifically, the telescopic tube comprises an outer tube and an inner tube, the inner tube is sleeved in the outer tube, and the inner tube is used for sliding along the outer tube. The inner pipe is arranged on one side of the third supporting mechanism, and the outer pipe is arranged on the first side surface; or: the outer pipe is disposed on one side of the third support mechanism, and the inner pipe is disposed on the first side surface.
In still other embodiments, the movable connector includes a bolt passing through the first end plate and the first side and a nut threaded onto the bolt to prevent the first side and the first end plate from disengaging the bolt. It should be noted that the bolt and the nut do not need to lock the first side face to the first end plate, so as to reserve a displacement space for the first side face and the first end plate. It should be noted that, when using bolts, it is necessary to provide the connecting holes 34 on the first end plate and the first side surface, respectively, and one connecting hole 34 is used for passing one bolt. The plurality of connection holes 34 are arranged in an array, which may be an X-shaped arrangement, i.e. the plurality of connection holes 34 are distributed on two intersecting lines.
In this embodiment, the second end plate and the second side surface are fixedly connected by bolts, and the connection holes 34 on the second end plate are arranged in an array, which may be an X-shaped array.
In this embodiment, the first supporting mechanism may be H-shaped steel, and the H-shaped steel has the advantages of strong bending resistance, simple construction, cost saving, light structural weight, and the like in all directions. The second supporting mechanism can be H-shaped steel.
Referring to fig. 1 and fig. 2, in the present embodiment, in order to further increase the stability of the first supporting mechanism 1, the first supporting mechanism 1 includes a first supporting assembly. The first support assembly comprises a plurality of first support plates 12, and the first support plates 12 are arranged on the inner wall of the first support mechanism 1. The first support plate 12 is parallel to the direction of movement of the telescopic end 41 of the telescopic mechanism 4. The moving direction of the telescopic end 41 of the telescopic mechanism 4 is perpendicular to the first side surface 11, and the first support plate 12 is perpendicular to the first side surface 11.
Referring to fig. 1 and fig. 2, similarly, the second supporting mechanism 2 includes a second supporting assembly. The second support assembly comprises a plurality of second support plates 22, and the second support plates 22 are arranged on the inner wall of the second support mechanism 2. The second support plate 22 is parallel to the direction of movement of the telescopic end 41 of the telescopic mechanism 4. The moving direction of the telescopic end 41 of the telescopic mechanism 4 is perpendicular to the second side surface 21, and the second supporting plate 22 is perpendicular to the second side surface 21.
Referring to fig. 4, in the present embodiment, the foundation pit supporting mechanism 6 includes a triangular assembly 63, an inclined strut assembly 61 and a straight strut assembly 62. One end of the inclined strut assembly 61 is arranged on the straight strut assembly 62, and the other end of the inclined strut assembly 61 is arranged on the first support mechanism 1. The second supporting mechanism 2 is arranged on one side surface of a triangular assembly 63, and the bottom surface of the triangular assembly 63 is arranged on the surrounding purlin 64. It should be noted that the first support mechanism may be connected to the diagonal support assembly 61, and the second support mechanism may be connected to the triangular assembly 63 or the surrounding purlin 64. One end of the straight support assembly 62 is arranged on the surrounding purlin 64, and the other end of the straight support assembly 62 is also arranged on the surrounding purlin 64. It should be noted that one end of the straight supporting assembly 62 and the other end of the straight supporting assembly 62 are respectively disposed on two opposite sides of the purlin 64. Therefore, the stress adjusting device is matched with the upper triangular assembly, the inclined strut assembly and the straight strut assembly, and can well support the foundation pit.
Referring to fig. 4, in the present embodiment, when one end of the straight supporting assembly 62 is disposed on the surrounding purlin 64 and the other end of the straight supporting assembly 62 is also disposed on the surrounding purlin 64, the other end of the straight supporting assembly 62 is also disposed on the surrounding purlin 64 through a stress adjusting device.
It should be noted that, two bracing assemblies are symmetrically distributed on two sides of the straight bracing assembly, so as to form a figure-of-eight shape.
It should be noted that, under the drive of the telescopic mechanism, the distance between the first side surface and the second side surface changes, and a gasket can be inserted into the first side surface and the third support member, so as to reduce the load borne by the telescopic mechanism.
It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.
Claims (10)
1. A stress adjusting device is characterized by comprising a first supporting mechanism, a second supporting mechanism, a third supporting mechanism, a telescopic mechanism and a movable connecting piece;
the first side surface of the first supporting mechanism is parallel to the second side surface of the second supporting mechanism, and the first side surface is opposite to the second side surface;
one side of the third supporting mechanism is arranged on the first side surface through a movable connecting piece, and the other side of the third supporting mechanism is arranged on the second side surface;
the telescopic mechanism is arranged on the second side surface, a telescopic end of the telescopic mechanism is arranged on the first side surface, and the telescopic mechanism is used for adjusting the distance between the first side surface and the second side surface;
the first supporting mechanism or the second supporting mechanism is used for connecting a foundation pit supporting mechanism.
2. The strain gage of claim 1, wherein the plurality of telescoping mechanisms are uniformly disposed between the first side and the second side.
3. The stress adjusting device of claim 1, wherein the telescoping mechanism is a telescoping cylinder or a telescoping cylinder.
4. The strain gage of claim 1, wherein the third support mechanism is a plurality of third support mechanisms, the plurality of third support mechanisms being uniformly disposed between the first side and the second side.
5. A stress riser according to claim 1, wherein said third support means is provided with a slot.
6. The strain gage of claim 5, wherein the third support mechanism comprises a first end plate, a second end plate, and a support portion;
the supporting part is H-shaped, and the slot is arranged on the supporting part;
one side of the supporting part is arranged on the first end plate, and the first end plate is arranged on the first side surface through the movable connecting piece;
the other side of the support portion is disposed on the second end plate, and the second end plate is disposed on the second side surface.
7. The strain gage of claim 1, wherein the movable connector comprises a guide portion and a stop portion;
one end of the guide part is arranged on one side of the third support mechanism, the other end of the guide part penetrates through the first side face, and the first support mechanism is used for moving along the guide part;
the limiting portion is arranged at the other end of the guide portion, and the first side face is arranged between the limiting portion and one end of the guide portion.
8. A stress riser according to claim 1, wherein a plurality of first support plates are provided on the inner wall of the first support means.
9. The stress adjusting apparatus according to claim 1, wherein a plurality of second support plates are provided on an inner wall of the second support means.
10. The stress adjusting device of claim 1, wherein one end of the diagonal support assembly is disposed on the straight support assembly, and the other end of the diagonal support assembly is disposed on the first support mechanism or the second support mechanism;
both ends of the straight supporting assembly are used for being arranged on the surrounding purlin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121674960.8U CN214883723U (en) | 2021-07-22 | 2021-07-22 | Stress adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121674960.8U CN214883723U (en) | 2021-07-22 | 2021-07-22 | Stress adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214883723U true CN214883723U (en) | 2021-11-26 |
Family
ID=78909413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121674960.8U Active CN214883723U (en) | 2021-07-22 | 2021-07-22 | Stress adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214883723U (en) |
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2021
- 2021-07-22 CN CN202121674960.8U patent/CN214883723U/en active Active
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Effective date of registration: 20221228 Address after: G62, Floor 9, Chuangye Building, Fuzhou Hi tech Industrial Park, No. 8, Keji East Road, Fuzhou Hi tech Zone, 350000, Fujian Patentee after: Fujian Zixi Intelligent Equipment Technology Co.,Ltd. Address before: 350015 room 11, 15th floor, management committee complex building, Fuzhou free trade zone, Mawei District, Fuzhou City, Fujian Province (in the pilot Free Trade Zone) Patentee before: ZIXI LEASING Co.,Ltd. |