CN212582695U - Foundation pit cross brace device - Google Patents
Foundation pit cross brace device Download PDFInfo
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- CN212582695U CN212582695U CN202020420173.XU CN202020420173U CN212582695U CN 212582695 U CN212582695 U CN 212582695U CN 202020420173 U CN202020420173 U CN 202020420173U CN 212582695 U CN212582695 U CN 212582695U
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- pressing
- cross brace
- foundation pit
- piece
- positioning
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- 229910000831 Steel Inorganic materials 0.000 claims description 39
- 239000010959 steel Substances 0.000 claims description 39
- 238000003466 welding Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 9
- 230000008901 benefit Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a foundation pit cross bracing device, which comprises a cross brace rod, press parts connected with the two ends of the cross brace rod and connectors positioned at the two ends of the cross brace rod and used for being detachably connected with longitudinal braces and supporting the press parts, wherein the press parts are transversely pressed on connecting heads, a telescopic component capable of transversely adjusting the positions of the press parts is arranged between at least one connector and the corresponding press part, and the connecting heads are connected with hooks used for being hung on the longitudinal braces; the cross brace device has high assembly and installation efficiency, can be repeatedly utilized, avoids stress concentration caused by welding connection, and improves the bearing capacity of the cross brace device; the length of the cross brace device is adjustable, the gap between the end part of the cross brace device and the longitudinal brace is easily adjusted, the problem that the longitudinal brace and the cross brace cannot be tightly attached is solved, the cross brace device can be suitable for foundation pit support with different widths, and the cross brace device is good in universality and wide in application range.
Description
Technical Field
The utility model relates to a foundation ditch stull field of strutting relates to a foundation ditch stull device.
Background
With the continuous and rapid development of railway and highway construction in China, urban subway engineering is continuously emerged, and after urban subways are constructed and excavated, a foundation pit is required to be supported in real time, so that the construction of an underground main body structure and the safety of the surrounding environment of the foundation pit are ensured;
the steel support belongs to one of foundation pit cross brace supports, and refers to a temporary steel support which is adopted for the side wall of a foundation pit and the surrounding environment in order to ensure the safety of the construction of an underground main body structure and the surrounding environment of the foundation pit, and particularly, the steel sheet pile support structure is a support structure which is formed by combining parts such as a steel sheet pile, a cross brace, a longitudinal brace and the like in the whole construction process and has stable foundation pit engineering;
the traditional steel support joint part adopts a welding connection mode, welding connection has various inconveniences in construction, such as inconvenient disassembly and the like, and the welding connection can cause that the joint is difficult to recycle, so that the economic benefit is low, the resource waste is caused, and the construction cost is increased; welding has high technical requirements, arc heat is too high, or the angle between a welding rod and a workpiece is incorrect, and the swinging is unreasonable, so that undercuts can be generated, the effective sectional area of a base material is reduced by the undercuts, the bearing capacity of a structure is reduced, stress concentration can be caused, and the base material develops into a crack source and becomes a potential hazard source.
In the traditional steel support supporting mode, longitudinal supports are abutted against two side walls of a foundation pit, two ends of cross supports are respectively supported on two opposite longitudinal supports on two sides of the foundation pit, in the existing construction method, the distance between the two opposite longitudinal supports is usually measured firstly, then corresponding cross support steel pipes are intercepted according to the length of the cross supports, and then the cross supports are welded on the longitudinal supports, the intercepted length is usually smaller than the actual length, so that gaps exist between the cross supports and the longitudinal supports, the gaps between the cross supports and the longitudinal supports cannot be kept the same, and the stability of the foundation pit can be continuously changed along with the increase of supporting time, so that the great safety risk is caused.
Therefore, a foundation pit bracing device is needed, which is convenient to install, can be disassembled for reuse, can be adjusted and longitudinally support a gap between the two braces, solves the problem that the longitudinal braces and the transverse braces cannot be tightly attached, improves the reliability and the stability of the supporting performance of the bracing device, and eliminates the potential safety hazard caused by the gap between the longitudinal braces and the transverse braces.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a foundation ditch stull device, this stull device simple to operate can dismantle reuse, and can adjust and indulge the gap between the vaulting, solves to indulge the problem that vaulting and stull can't closely laminate, has improved stull device support performance's reliability and stability, has eliminated because violently, indulge the potential safety hazard that the clearance between the vaulting caused.
The utility model discloses a foundation ditch stull device, including the stull, connect in the press piece at stull both ends and be located the stull both ends and be used for with indulge to prop and can dismantle the connector of being connected and being used for supporting the press piece, the press piece transversely presses on the connector, is provided with the flexible subassembly that can transversely adjust the press piece position between at least one connector and the corresponding press piece, be connected with on the connector and be used for hanging the couple of propping on indulging.
Furthermore, the telescopic component comprises a screw rod connected to the end part of the cross brace rod and a pressing nut in threaded connection with the screw rod, and the pressing piece is connected to the outer end part of the pressing nut;
furthermore, the connector comprises a pressing steel plate and a supporting piece connected to one side, close to the pressing piece, of the pressing steel plate, and the pressing piece is transversely pressed on the pressing steel plate and supported by the supporting piece;
furthermore, the pressing piece is of a rectangular plate-shaped structure, the supporting piece is two angle steels which are connected to the pressing steel plate and are transversely arranged oppositely, and the two angle steels are supported at two corners of the bottom of the pressing piece;
furthermore, a positioning groove is axially formed in the outer circle of the screw rod, a positioning hole used for being matched with the positioning groove is radially formed in the pressing nut, a positioning piece penetrates through the positioning hole, and the inner end of the positioning piece penetrates through the positioning groove;
furthermore, a hanging lug is connected to the upper edge of the pressing steel plate, and a hanging hole is formed in the hanging lug;
furthermore, the positioning groove radially penetrates through the outer circle of the screw, two positioning holes which are opposite in the radial direction are formed outside the abutting nut, the positioning piece is a bolt, and the bolt penetrates through the two positioning holes and the positioning groove to form threaded fastening for the screw and the abutting nut;
furthermore, the hanging lug is connected to the center of the upper edge of the pressing steel plate, and the two hooks are positioned on two sides of the hanging lug and are symmetrically arranged;
further, two end parts of the screw rod connected with the transverse support rod are connected with flange plates, and the screw rod is connected with the transverse support rod through the flange plates;
the utility model has the advantages that:
the cross brace device of the utility model adopts a detachable connection mode without welding, which can effectively improve the installation efficiency of the cross brace device, is convenient for the disassembly and the reutilization of each part of the cross brace device, reduces the use cost, avoids the stress concentration caused by welding connection, improves the bearing capacity of the cross brace device, and avoids the potential danger caused by the crack caused by the stress concentration; the length of the cross brace device is adjustable, the gap between the end part of the cross brace device and the longitudinal brace is easily adjusted, the problem that the longitudinal brace and the cross brace cannot be tightly attached is solved, the reliability and the stability of the supporting performance of the cross brace device are improved, potential safety hazards caused by the gap between the transverse brace and the longitudinal brace are eliminated, the cross brace device can be suitable for foundation pit supporting with different widths, the universality is good, and the application range is wide.
Drawings
The invention is further described with reference to the following figures and examples.
FIG. 1 is a schematic view of a foundation pit supporting structure;
FIG. 2 is a schematic view of an exploded structure of a wale device;
FIG. 3 is a schematic view of a connection structure of the wale device and the wale;
FIG. 4 is a schematic view of a connection structure of the pressing member and the pressing steel plate;
Detailed Description
FIG. 1 is a schematic view of a foundation pit supporting structure; FIG. 2 is a schematic view of an exploded structure of a wale device; FIG. 3 is a schematic view of a connection structure of the wale device and the wale; FIG. 4 is a schematic view of a connection structure of the pressing member and the pressing steel plate;
as shown in the figures, the foundation pit bracing device in this embodiment includes a transverse bracing piece 1, pressing pieces 2 connected to two ends of the transverse bracing piece, and connectors located at two ends of the transverse bracing piece for detachable connection with the longitudinal bracing piece and for supporting the pressing pieces, the pressing pieces are transversely pressed on the connectors, a telescopic assembly capable of transversely adjusting the position of the pressing piece 2 is arranged between at least one connector and the corresponding pressing piece, and a hook 3 for hanging on the longitudinal bracing piece is connected to the connector.
Referring to fig. 1 and 3, when supporting a foundation pit, a longitudinal support is fixed on a side wall of the foundation pit 13, the longitudinal support is generally composed of a plurality of vertically arranged longitudinal support vertical beams and a longitudinal support cross beam 14 connected between adjacent longitudinal support vertical beams, a hook is hung at the upper edge of the longitudinal support cross beam, so that a connector can be detachably connected to the longitudinal support cross beam, the longitudinal section of a transverse support rod can be a circular or polygonal structure, the transverse support rod can also be a tubular structure, both ends of the transverse support rod can be provided with telescopic components or only one end of a cross rod is provided with a telescopic component, in this embodiment, both ends of the transverse support rod are preferably provided with telescopic components, so that gaps at both ends can be adjusted in real time, wherein the telescopic components adjust the telescopic amount to enable a pressing piece to be transversely pressed on a connector, so that the connector can form good supporting performance for the pressing piece, a pressing groove matched with the contour of the, the cross brace device adopts a welding-free detachable connection mode, so that the installation efficiency of the cross brace device can be effectively improved, the disassembly and the repeated utilization of each part of the cross brace device are facilitated, the use cost is reduced, meanwhile, the stress concentration caused by welding connection is avoided, the bearing capacity of the cross brace device is improved, and the potential danger caused by cracks caused by the stress concentration is avoided; the length of the cross brace device is adjustable, the gap between the end part of the cross brace device and the longitudinal brace is easily adjusted, the problem that the longitudinal brace and the cross brace cannot be tightly attached is solved, the reliability and the stability of the supporting performance of the cross brace device are improved, potential safety hazards caused by the gap between the transverse brace and the longitudinal brace are eliminated, the cross brace device can be suitable for foundation pit supporting with different widths, the universality is good, and the application range is wide.
In this embodiment, the telescopic assembly includes a screw rod 4 connected to the end of the cross brace rod and a pressing nut 5 in threaded connection with the screw rod, and the pressing member is connected to the outer end of the pressing nut; as shown in fig. 2, the pressing member can be driven to move vertically and horizontally by rotating the pressing nut, so as to adjust the length of the cross brace device, adjust the gap between the cross brace device and the longitudinal brace, and provide pressing force for the pressing member by matching the pressing nut and the screw rod, so that the pressing member can be reliably pressed on the longitudinal brace, and the bearing capacity of the cross brace device is improved.
In this embodiment, the connector includes a pressing steel plate 6 and a supporting member connected to one side of the pressing steel plate close to the pressing member 2, and the pressing member is transversely pressed on the pressing steel plate 6 and supported by the supporting member; as shown in fig. 2 and 4, the pressing steel plate has functions of connecting the cross brace and the pressing piece, and dispersing the pressing force, so that the pressure of the cross brace device acting on the longitudinal brace cross beam is evenly distributed, and stress concentration is avoided; the specific structure of the supporting member is determined according to the structure of the pressing member, when the pressing member is a columnar structure, the supporting member may be a sleeve structure or a tile-shaped structure, and when the pressing member is a block structure, the supporting member may be a supporting block supported at the bottom of the pressing member, which is not described in detail;
in this embodiment, the pressing member is a rectangular plate-shaped structure, the supporting member is two angle steels 7 which are connected to the pressing steel plate 6 and arranged transversely and oppositely, and the two angle steels are supported at two corners of the bottom of the pressing member; as shown in fig. 2 and 4, two corners of the pressing member are supported by two angle steels, and the two angle steels play a role in supporting and limiting the lateral movement of the pressing member, so that the stability of the cross brace device is improved.
In this embodiment, a positioning groove 8 is axially formed in the outer circle of the screw, a positioning hole 9 used for being matched with the positioning groove is radially formed in the abutting nut, a positioning piece penetrates through the positioning hole, and the inner end of the positioning piece penetrates through the positioning groove; after the assembly of the cross brace device is completed, the relative rotation of the screw rod and the abutting nut is limited through the positioning piece, the axial displacement of the abutting nut is prevented, the stability of the cross brace device is improved, the deformation of the cross brace device in construction can be reduced, and the problem of ground settlement around a construction foundation pit is favorably solved.
In the embodiment, the upper edge of the pressing steel plate is connected with a hanging lug 10, and a hanging hole is formed in the hanging lug; as shown in fig. 3, the hanging lugs are used with the double-head hanging hooks 15, one of the hanging hooks is hung in the hanging hole of the hanging lug, and the other hanging hook is hung on the hanging piece 16 pre-embedded on the side wall of the foundation pit, so that extra tension is provided for the low-pressure steel plate, the bearing capacity of the cross-brace device is improved, and the overall stability of the cross-brace device is improved.
In this embodiment, the positioning groove radially penetrates through the outer circle of the screw, the pressing nut is externally provided with two positioning holes which are opposite in the radial direction, the positioning piece is a bolt 11, and the bolt penetrates through the two positioning holes and the positioning groove to form threaded fastening for the screw and the pressing nut; adopt high strength connecting bolt to realize the locking of bolt and low pressure nut, improve the locking reliability.
In the embodiment, the hanging lug is connected to the center of the upper edge of the pressing steel plate, and the two hooks are positioned on two sides of the hanging lug and are symmetrically arranged; the stress of the pressing steel plate is improved through the structure, and the stability of the pressing steel plate is improved.
In this embodiment, the two ends of the screw rod connected with the transverse supporting rod are connected with flange plates 12, and the screw rod is connected with the transverse supporting rod through the flange plates; through flange joint, the stull device of being convenient for dismantlement and assembly improve the stull device and use the flexibility.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (9)
1. The utility model provides a foundation ditch stull device which characterized in that: the device comprises a transverse supporting rod, pressing parts connected to two ends of the transverse supporting rod and connectors located at two ends of the transverse supporting rod and used for being detachably connected with longitudinal supports and supporting the pressing parts, wherein the pressing parts are transversely pressed on the connectors, a telescopic assembly capable of transversely adjusting the positions of the pressing parts is arranged between at least one connector and the corresponding pressing part, and a hook used for being hung on the longitudinal support is connected to the connectors.
2. The foundation pit bracing apparatus according to claim 1, wherein: the telescopic assembly comprises a screw rod connected to the end part of the cross brace rod and a pressing nut in threaded connection with the screw rod, and the pressing piece is connected to the outer end part of the pressing nut.
3. The foundation pit bracing apparatus according to claim 1, wherein: the connector comprises a pressing steel plate and a supporting piece connected to one side, close to the pressing piece, of the pressing steel plate, and the pressing piece is transversely pressed on the pressing steel plate and supported through the supporting piece.
4. The foundation pit bracing apparatus according to claim 3, wherein: the pressing piece is of a rectangular plate-shaped structure, the supporting piece is two angle steels which are connected to the pressing steel plate and are transversely arranged oppositely, and the two angle steels are supported at two corners of the bottom of the pressing piece.
5. The foundation pit bracing apparatus according to claim 2, wherein: the outer circle of the screw rod is axially provided with a positioning groove, the pressing nut is radially provided with a positioning hole used for being matched with the positioning groove, a positioning piece penetrates through the positioning hole, and the inner end of the positioning piece penetrates into the positioning groove.
6. The foundation pit bracing apparatus according to claim 3, wherein: the upper edge of the pressing steel plate is connected with a hanging lug, and the hanging lug is provided with a hanging hole.
7. The foundation pit bracing apparatus according to claim 5, wherein: the positioning groove is radially penetrated through the outer circle of the screw rod, the abutting nut is externally provided with two positioning holes which are opposite in the radial direction, the positioning piece is a bolt, and the bolt penetrates through the two positioning holes and the positioning groove to fasten the screw rod and the abutting nut in a thread manner.
8. The foundation pit bracing apparatus according to claim 6, wherein: the hangers are connected to the center of the upper edge of the pressing steel plate, and the two hooks are located on two sides of the hangers and are symmetrically arranged.
9. The foundation pit bracing apparatus according to claim 2, wherein: the two ends of the screw rod connected with the transverse supporting rod are connected with flange plates, and the screw rod is connected with the transverse supporting rod through the flange plates.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019214004665 | 2019-08-23 | ||
| CN201921400466 | 2019-08-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212582695U true CN212582695U (en) | 2021-02-23 |
Family
ID=74656909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020420173.XU Expired - Fee Related CN212582695U (en) | 2019-08-23 | 2020-03-27 | Foundation pit cross brace device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212582695U (en) |
-
2020
- 2020-03-27 CN CN202020420173.XU patent/CN212582695U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |