CN202730775U - Axial force pre-applying device for steel support - Google Patents
Axial force pre-applying device for steel support Download PDFInfo
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- CN202730775U CN202730775U CN 201220421519 CN201220421519U CN202730775U CN 202730775 U CN202730775 U CN 202730775U CN 201220421519 CN201220421519 CN 201220421519 CN 201220421519 U CN201220421519 U CN 201220421519U CN 202730775 U CN202730775 U CN 202730775U
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- axial force
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Abstract
The utility model provides an axial force pre-applying device for a steel support. The axial force pre-applying device comprises a connecting joint, a left support, a movable sleeve, a right support as well as an axial force meter, wherein the left support is sleeved on the left end of the connecting joint; the movable sleeve is connected to the right end of the connecting joint; the right support is sleeved on the right end of the movable sleeve; the axial force meter is installed in the right support; the right support comprises a right support round cylinder, a right support panel as well as an axial force positioning device which comprises a positioning circular ring, a positioning round cylinder as well as at least four fastening bolts; the axial force meter is placed in the positioning circular ring, and is fixed in the axial force meter positioning device through the fastening bolts on the positioning round cylinder; and a round cylinder of the movable sleeve is sleeved in the right support round cylinder of the right support. The axial force pre-applying device provided by the utility model has the advantages of simple structure, convenience in mounting and dismounting, flexibility in operation, safety in using and reliable quality, and can measure and regulate the axial force of the steel support at any time.
Description
[technical field]
The utility model relates to braced structures member in a kind of foundation pit supporting project, particularly the pre-feeder apparatus of a kind of steel axial force of the supports.
[background technology]
In foundation pit supporting construction, the steel axial force of the supports adds in advance and normally adopts segmented head and hydraulic jack to be used, and namely loads axle power at the segmented head place to preset value by hydraulic jack, with the gad piece active termination is fixed again.The pre-adding method of this steel axial force of the supports part that comes with some shortcomings: 1, in the pre-added-time of steel axial force of the supports, hydraulic jack is arranged on steel and supports both sides, and steel supports eccentric compression during loading, causes steel supporting component to produce easily the both sides discontinuity; 2, after hydraulic jack loads, use the gad piece that segmented head is carried out wedging and fixes, when the gad piece deforms or during slippage, can cause the steel support unloading; 3, hydraulic jack supports steel and can only apply unidirectional axial compression, can't apply axial tension; 4, the hydraulic jack mounting or dismounting are inconvenient, in the use procedure, adjust very difficult to its axle power again after the steel supporting loading; 5, when removing the steel support, steel supports load moment removal, easily produces potential safety hazard.
[summary of the invention]
The technical problems to be solved in the utility model is to provide a kind of steel axial force of the supports pre-feeder apparatus; Solving steel in traditional foundation pit supporting construction supports pre-mandrel power and adds in advance and adjust difficulty, occur easily the technical problem of moment off-load in removing.
The utility model is achieved in that the pre-feeder apparatus of a kind of steel axial force of the supports, comprising: jointing, be socketed in described jointing left end left pedestal, be connected to described jointing right-hand member quill, be socketed in the right pedestal of described quill right-hand member and be installed in axle power meter in the described right pedestal;
Described jointing comprises a screw rod, a nut and one first flange; Described screw surface is distributed with trapezoidal thread, and the internal thread of this screw thread and described nut is complementary; Described nut spiral is contained on the described screw rod, is distributed with a plurality of round bumps on the described nut outer wall; Described the first flange is vertically installed in the termination of described screw rod, and is welded and fixed connection;
Described left pedestal comprises left base socket sleeve and left pedestal flange; Described left pedestal flange is vertically installed on the described left base socket sleeve, and is welded and fixed connection, and described left base socket sleeve is sheathed on the described screw rod, and this left base socket sleeve withstands on described nut left side;
Described quill comprises cylinder, the second flange, central cross floor and circular load plate; Described the second flange is vertically installed on the described cylinder left end, and is welded and fixed connection; Described central cross floor is weldingly fixed on described cylinder interior, and is positioned at the port of described cylinder; Described central cross floor middle part offers a slot to make way, and this slot to make way be able to hold the location cylinder of described right pedestal; Described circular load plate is weldingly fixed on the described slot to make way, and the diameter of the diameter of described circular load plate and described axle power meter is complementary, and circular load plate center is concentric with described cylinder center; Described the second flange is connected by bolt with described the first flange;
Described right pedestal comprises right pedestal cylinder, right face plate of foundation and axle power meter positioner; Described right face plate of foundation and described right pedestal cylinder vertical welding are fixed, and described right pedestal cylinder offers the first wire guide, and described axle power meter positioner is vertically installed on the described right face plate of foundation, and is welded and fixed connection; Described axle power meter positioner comprises location annulus, location cylinder and at least four fastening bolts; Described location cylinder is weldingly fixed on the annulus of described location, and the external diameter of described location internal radius and described axle power meter is complementary; The external diameter of described location cylinder is identical with the external diameter of location annulus, and the internal diameter of location cylinder is greater than the internal diameter of described location annulus; The center of circle of the center of circle of described location annulus, location cylinder is concentric with the center of circle of described right pedestal cylinder; Cylinder week side in described location offers the second wire guide, and the position of this second wire guide is corresponding with described the first wire guide; Cylinder central cross week side position in described location is offered at least four screwed holes, and the screwed hole inwall is provided with screw thread, and this screw thread and described fastening bolt thread surface are complementary; Described fastening bolt spiral is arranged in the described screwed hole; Described axle power meter is placed in the annulus of described location, and is fixed in the described axle power meter positioner by the fastening bolt on the cylinder of described location; The cylindrical sleeve of described quill is in the right pedestal cylinder of described right pedestal.
Further, described screw rod is cored screw or solid screw.
Further, described left pedestal also comprises at least four stiffener; These four stiffeners are distributed in around the described left base socket sleeve, and are arranged between described left pedestal flange and the left base socket sleeve.
Further, described right face plate of foundation is provided with at least four screws.
The utility model has the advantage of: the utility model is a kind of adjustable charger that the steel axial force of the supports adds in advance in the foundation pit supporting project that is applicable to, and has simple in structure, peace and tears convenience, flexible operation, accelerating construction progress, use safety open; The utility model device and steel support to be bolted and are integrated, and become the part that steel supports, reducing construction cost; The employing screw rod loads, and can apply axial compression, need not the gad piece, the off-load that can not cause steel to support; Conveniently the steel axial force of the supports is regulated, and guaranteed that support provides axial pre-applied force to steel, especially in steel support works process, the increase and decrease of steel pipe support axial force is adjusted; Installation shaft power meter can be measured at any time axle power that steel supports, can accurately control the axle power that steel supports in pedestal, increases the safety of foundation pit supporting construction steel supporting system; Charger is located on the axle center of steel support, and the steel support is axially loaded in the loading, and it is stressed evenly that steel supports both sides; In removing steel support process, can realize slow off-load.
[description of drawings]
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of jointing of the present utility model.
Fig. 3 is the structural representation of the left pedestal of the utility model.
Fig. 4 is the elevation of the left pedestal of the utility model.
Fig. 5 is the structural representation of the utility model central cross floor.
Fig. 6 is the structural representation of the utility model quill.
Fig. 7 is the elevation of the utility model quill.
Fig. 8 is the structural representation of the right pedestal of the utility model.
Fig. 9 is the elevation of the right pedestal of the utility model.
Figure 10 is the structural representation of the utility model axle power meter positioner.
Figure 11 is the elevation of the utility model axle power meter positioner.
Figure 12 is the embodiment schematic diagram that the utility model is implemented in foundation pit supporting project.
Figure 13 is another embodiment schematic diagram that the utility model is implemented in foundation pit supporting project.
[specific embodiment]
See also Fig. 1 to shown in Figure 13, the pre-feeder apparatus of a kind of steel axial force of the supports of the present utility model comprises: jointing 1, be socketed in described jointing 1 left end left pedestal 2, be connected to described jointing 1 right-hand member quill 3, be socketed in the right pedestal 4 of described quill 3 right-hand members and be installed in axle power meter 5 in the described right pedestal 4;
Described jointing 1 comprises a screw rod 11, a nut 12 and one first flange 13; Described screw rod 11 surface distributed have trapezoidal thread, and the internal thread of this screw thread and described nut 12 is complementary; Described nut 12 spirals are contained on the described screw rod 11; This nut 12 can carry out as required spiral and be adjusted at position on the screw rod 11; Be distributed with a plurality of round bumps 121 on described nut 12 outer walls; Described the first flange 13 is vertically installed in the termination of described screw rod 11, and is welded and fixed connection; When round bump 121 can be convenient to the steel support and connection, operating personnel utilized little hollow steel pipe rod to be enclosed within the rotation that makes things convenient for nut 12 on the projection 121;
Described left pedestal 2 comprises left base socket sleeve 21 and left pedestal flange 22; Described left pedestal flange 22 is vertically installed on the described left base socket sleeve 21, and is welded and fixed connection; Steel supports can be by bolt 24(referring to Fig. 1 with left pedestal flange 22) be fixed and be connected; Described left base socket sleeve 21 is sheathed on the described screw rod 11, and this left base socket sleeve 21 withstands on described nut 12 left sides; Wherein, described left pedestal 2 also comprises at least four stiffener 23; These four stiffeners 23 are distributed in around the described left base socket sleeve 21, and are arranged between described left pedestal flange 22 and the left base socket sleeve 21; This stiffener 23 is for the connection of strengthening between left pedestal flange 22 and the left base socket sleeve 21;
Described quill 3 comprises cylinder 31, the second flange 32, central cross floor 33 and circular load plate 34; Described the second flange 32 is vertically installed on described cylinder 31 left ends, and is welded and fixed connection; Described central cross floor 33 is weldingly fixed on described cylinder 31 inside, and is positioned at the port of described cylinder 31; Described central cross floor 33 middle parts offer a slot to make way 331, and this slot to make way 331 be able to hold the location cylinder 432 of the axle power meter positioner 43 of described right pedestal 4; Described circular load plate 34 is weldingly fixed on the described slot to make way 331, and the diameter of the diameter of described circular load plate 34 and described axle power meter 5 is complementary, and circular load plate 34 centers are concentric with described cylinder 31 centers; Described the second flange 32 and described the first flange 13 by bolt 24(referring to Fig. 1) be connected;
Described right pedestal 4 comprises right pedestal cylinder 41, right face plate of foundation 42 and axle power meter positioner 43; Described right face plate of foundation 42 is fixed with described right pedestal cylinder 41 vertical weldings, and described right pedestal cylinder 41 offers the first wire guide 411, and described axle power meter positioner 43 is vertically installed on the described right face plate of foundation 42, and is welded and fixed connection; Described axle power meter positioner 43 comprises location annulus 431, location cylinder 432 and at least four fastening bolts 433; Described location cylinder 432 is weldingly fixed on the described location annulus 431, and the external diameter of described location annulus 431 internal diameters and described axle power meter 5 is complementary; The external diameter of described location cylinder 432 is identical with the external diameter of location annulus 431, and the internal diameter of location cylinder 432 is greater than the internal diameter of described location annulus 431; The center of circle of the center of circle of described location annulus 431, location cylinder 432 is concentric with the center of circle of described right pedestal cylinder 41; Cylinder 432 all sides in described location offer the second wire guide 4321, and the position of this second wire guide 4321 is corresponding with described the first wire guide 411; Cylinder 432 central cross week side position in described location is offered at least four screwed holes (not shown), and the screwed hole inwall is provided with screw thread, and this screw thread and described fastening bolt thread surface are complementary; Described fastening bolt 433 spirals are arranged in the described screwed hole; Described axle power meter 5 is placed in the described location annulus 431, and is fixed in the described axle power meter positioner 43 by the fastening bolt 433 on the described location cylinder 432; The cylinder 31 of described quill 3 is enclosed within the right pedestal cylinder 41 of described right pedestal 4.
Wherein, in the utility model, described screw rod 11 is cored screw or solid screw.Described right face plate of foundation 42 is provided with at least four screws 421.This screw 421 is convenient to carry out bolt (referring to Figure 12) with the foundation ditch steel wale and is connected.
Operating principle of the present utility model is as follows:
The axle power meter that first axle power meter 5 is placed in the right pedestal 4 during use is located in the annulus 431, make the central lines of center line and the right pedestal cylinder 41 of axle power meter 5, fastening bolt 433 on the screwed in place cylinder 432, when installation shaft power meter 5, the wire of connecting axle power meter 5 is drawn outside the right pedestal 4 by the second wire guide 4321 on the cylinder 432 of location and the first wire guide 411 on the right pedestal cylinder 41, be convenient to axle power meter 5 and be connected measurement steel axial force of the supports with Acquisition Instrument; Then with left pedestal 2, jointing 1, quill 3, right pedestal 4 fits together, nut 12 supports to left pedestal 2, with bolt left pedestal 2 and steel being supported 6 is connected and fixed, with bolt right pedestal 4 is connected (referring to Figure 12) with foundation ditch steel wale 7, or 4 of right pedestals also support on the steel corbel 8 of supporting hat beam sides to supporting hat beam 9 sides (referring to Figure 13), nut 12 on the rotary joint 1 moves right screw rod 11, and support applies axial compression to steel, by the control rotary speed, but the speed of controlled loading is with the size of different direction rotation capable of regulating axial compressions; Be connected with wire by Acquisition Instrument (not shown), can measure tapping axial force of the supports size.This steel supports pre-adding axial force device and is connected in the steel support, for supporting, steel provides brace pre axial force, and a part and its common bearing load that self supports as steel in the brace pre axial force process, can collect at any time steel and support suffered axle power size and the axle power of steel support is adjusted.
The above only is preferred embodiment of the present utility model, and all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (4)
1. pre-feeder apparatus of steel axial force of the supports, it is characterized in that, comprising: jointing, be socketed in described jointing left end left pedestal, be connected to described jointing right-hand member quill, be socketed in the right pedestal of described quill right-hand member and be installed in axle power meter in the described right pedestal;
Described jointing comprises a screw rod, a nut and one first flange; Described screw surface is distributed with trapezoidal thread, and the internal thread of this screw thread and described nut is complementary; Described nut spiral is contained on the described screw rod, is distributed with a plurality of round bumps on the described nut outer wall; Described the first flange is vertically installed in the termination of described screw rod, and is welded and fixed connection;
Described left pedestal comprises left base socket sleeve and left pedestal flange; Described left pedestal flange is vertically installed on the described left base socket sleeve, and is welded and fixed connection; Described left base socket sleeve is sheathed on the described screw rod, and this left base socket sleeve withstands on described nut left side;
Described quill comprises cylinder, the second flange, central cross floor and circular load plate; Described the second flange is vertically installed on the described cylinder left end, and is welded and fixed connection; Described central cross floor is weldingly fixed on described cylinder interior, and is positioned at the port of described cylinder; Described central cross floor middle part offers a slot to make way, and this slot to make way be able to hold the location cylinder of described right pedestal; Described circular load plate is weldingly fixed on the described slot to make way, and the diameter of the diameter of described circular load plate and described axle power meter is complementary, and circular load plate center is concentric with described cylinder center; Described the second flange is connected by bolt with described the first flange;
Described right pedestal comprises right pedestal cylinder, right face plate of foundation and axle power meter positioner; Described right face plate of foundation and described right pedestal cylinder vertical welding are fixed, and described right pedestal cylinder offers the first wire guide, and described axle power meter positioner is vertically installed on the described right face plate of foundation, and is welded and fixed connection; Described axle power meter positioner comprises location annulus, location cylinder and at least four fastening bolts; Described location cylinder is weldingly fixed on the annulus of described location, and the external diameter of described location internal radius and described axle power meter is complementary; The external diameter of described location cylinder is identical with the external diameter of location annulus, and the internal diameter of location cylinder is greater than the internal diameter of described location annulus; The center of circle of the center of circle of described location annulus, location cylinder is concentric with the center of circle of described right pedestal cylinder; Cylinder week side in described location offers the second wire guide, and the position of this second wire guide is corresponding with described the first wire guide; Cylinder central cross week side position in described location is offered at least four screwed holes, and the screwed hole inwall is provided with screw thread, and this screw thread and described fastening bolt thread surface are complementary; Described fastening bolt spiral is arranged in the described screwed hole; Described axle power meter is placed in the annulus of described location, and is fixed in the described axle power meter positioner by the fastening bolt on the cylinder of described location; The cylindrical sleeve of described quill is in the right pedestal cylinder of described right pedestal.
2. the pre-feeder apparatus of a kind of steel axial force of the supports according to claim 1, it is characterized in that: described screw rod is cored screw or solid screw.
3. the pre-feeder apparatus of a kind of steel axial force of the supports according to claim 1, it is characterized in that: described left pedestal also comprises at least four stiffener; These four stiffeners are distributed in around the described left base socket sleeve, and are arranged between described left pedestal flange and the left base socket sleeve.
4. the pre-feeder apparatus of a kind of steel axial force of the supports according to claim 1, it is characterized in that: described right face plate of foundation is provided with at least four screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220421519 CN202730775U (en) | 2012-08-22 | 2012-08-22 | Axial force pre-applying device for steel support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220421519 CN202730775U (en) | 2012-08-22 | 2012-08-22 | Axial force pre-applying device for steel support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202730775U true CN202730775U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220421519 Expired - Fee Related CN202730775U (en) | 2012-08-22 | 2012-08-22 | Axial force pre-applying device for steel support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202730775U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107964959A (en) * | 2017-12-05 | 2018-04-27 | 广州鑫桥建筑工程有限公司 | A kind of prefabricated assembled concrete support system |
| CN110424401A (en) * | 2019-07-02 | 2019-11-08 | 浙江工业大学 | A kind of extension type locking prestressing apparatus for shaped steel combination support |
-
2012
- 2012-08-22 CN CN 201220421519 patent/CN202730775U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107964959A (en) * | 2017-12-05 | 2018-04-27 | 广州鑫桥建筑工程有限公司 | A kind of prefabricated assembled concrete support system |
| CN110424401A (en) * | 2019-07-02 | 2019-11-08 | 浙江工业大学 | A kind of extension type locking prestressing apparatus for shaped steel combination support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20160822 |