CN201221156Y - Tension and anchoring device of single filament guy cable stretching end under low stretching control stress - Google Patents
Tension and anchoring device of single filament guy cable stretching end under low stretching control stress Download PDFInfo
- Publication number
- CN201221156Y CN201221156Y CNU200820087988XU CN200820087988U CN201221156Y CN 201221156 Y CN201221156 Y CN 201221156Y CN U200820087988X U CNU200820087988X U CN U200820087988XU CN 200820087988 U CN200820087988 U CN 200820087988U CN 201221156 Y CN201221156 Y CN 201221156Y
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- screw rod
- plain washer
- core
- drag
- spline
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Abstract
The utility model discloses a device for tensioning and anchoring the tensioned ends of a single-wire guy under low tension control stress. The device comprises a small-diameter single-wire guy (1), a penetrating screw rod (3), a first tightening nut (4) and a second tightening nut (11); wherein, both ends of the small-diameter single-wire guy are respectively provided with an upset head (1.1); the penetrating screw rod, which is respectively arranged on both tensioned ends and part of which is located in the hole of a terminal upright post (10), is movably sleeved on the single-wire guy; the first and the second tightening nuts are located on both sides of the terminal upright post and tightly screwed on the penetrating screw rod; a first flat gasket (6) and a second gasket (7) are arranged on the penetrating screw rod inside the first and the second tightening nuts and fixed on both sides of the terminal upright post; and the edge of each flat gasket is provided at least one rotation-stopping edge which is turned at 90 degrees towards both sides in order to prevent the loosening of one of the nuts and clings to one side of the abutted nut. The device can prevent the tightening nuts from being loosened from the guy by slight vibration or other reasons to cause the failure of the connection of the guy.
Description
Technical field
The utility model relates to stretch-draw and the anchor device with the low stress drag-line such as a kind of stair or staircase, bridge or the connection of road air partition and other view or decoration etc., specifically is the stretch-draw and the anchor device of monofilament drag-line stretch-draw end under a kind of low control stress for prestressing.
Background technology
Drag-line is used very extensive in civil engineering.Drag-line generally is divided into two kinds, and a kind of is the structure stress drag-line, as drag-line in the suspension cable in the bridge engineering, suspension rod drag-line and the cladding glass braced structures etc.These drag-lines are as prestressed cable, and its control stress for prestressing is generally at 0.45f
Ptk～0.75f
Ptk(f in the scope
PtkBe drag-line Tensile strength standard value), so these drag-lines generally are in heavily stressed duty.The all existing lot of research of its tensioning equipment and anchor device and method for stretching thereof (technology), and have ripe product and application technology standard to follow.
Another kind of drag-line, the handrail drag-line of stair or staircase for example, bridge and road air partition be connected drag-line and some other ornamental drag-line that is provided with owing to architectural requirement etc., belong to the individual wire drag-line of minor diameter (diameter is generally less than 10mm) under the low control stress for prestressing of this class exactly, claim monofilament drag-line under the low control stress for prestressing usually.Because purposes difference, under normal condition, do not need very high control stress for prestressing, or even do not allow high control stress for prestressing, as bridge air partition drag-line if too high column distortion that then easily makes its support of stress or displacement etc., so its control stress for prestressing is generally less than 0.45f
Ptk, even less than 0.2f
PtkOr it is littler.But its anchoring system possesses the safety under the high-stress state again, and people's gravity, bridge air partition drag-line want to bear the goods that traffic accident may occur or the bump of manpower etc. when wanting to bear contingency as the drag-line of balustrade.
The stretch-draw of monofilament drag-line stretch-draw end and the structure of anchor device are generally under the low control stress for prestressing of prior art: the steel minor diameter monofilament drag-line 101 outer core through screw rod 103 that are with that are provided with heading 102 are engaged in the hole of columns 100 such as stair, air partition, and tighten up by the clamp nut 104 that screws on core through screw rod 103 and lay respectively at column 100 both sides, cooperate for the plane between heading 102 and the core through screw rod 103.
The stretch-draw and the anchor device of monofilament drag-line under the low control stress for prestressing of above prior art, exist following shortcoming: Yin Lasuo to be under the low control stress for prestressing in actual applications, under microseism or other reasons, make clamp nut loosening easily, and cause drag-line connect to lose efficacy as the drag-line no pulling force etc. that relaxes, directly influence the normal use and the safety of drag-line.
The utility model content
The technical problems to be solved in the utility model is, provide a kind of drag-line that can prevent under microseism or other reasons, to make clamp nut loosening and cause drag-line to connect losing efficacy, thereby guarantee the stretch-draw and the anchor device of monofilament drag-line stretch-draw end under the low control stress for prestressing of the normal use of drag-line and safety.
The technical solution of the utility model is, the stretch-draw and the anchor device of monofilament drag-line stretch-draw end under a kind of low control stress for prestressing with following structure are provided, comprise that two ends are respectively equipped with the minor diameter monofilament drag-line of heading, be located at respectively two stretch-draw ends be movably combined on the monofilament drag-line and part is arranged in the core through screw rod of end leghole, be positioned at end column both sides and screw first clamp nut and second clamp nut on core through screw rod, the core through screw rod that is positioned at the first clamp nut inboard in the end column outside is provided with first plain washer, described first plain washer is fixed tightly in the outside of end column, the spline limit that the edge of described first plain washer has at least one anti-first clamp nut that flips to the outside 90 ° to become flexible, limit of first clamp nut is close on described spline limit; The core through screw rod that is positioned at the second clamp nut inboard of end column inboard is provided with second plain washer, described second plain washer is fixed tightly in the inboard of end column, there is at least one overturn to the inside 90 ° the spline limit of anti-nut loosening at the edge of described second plain washer, and limit of this nut is close on described spline limit.
Flip to the outside 90 ° the loosening spline limit of anti-first clamp nut, the described first plain washer edge that is positioned at the end column outside is generally two, and two relative parallel edges of first clamp nut are close on described two spline limits.
The described core through screw rod that is positioned at the second clamp nut inboard of end column inboard is provided with second plain washer, refers generally to the spline short screw and the stop nut that are provided with second plain washer from left to right, screw mutually on the core through screw rod of the second clamp nut inboard; There is at least one overturn to the inside 90 ° the spline limit of anti-nut loosening at the edge of described second plain washer, and there is at least one overturn to the inside 90 ° the loosening spline limit of anti-stop nut at the edge that refers generally to this second plain washer; Limit of this nut is close on described spline limit, refers generally to the limit that stop nut is close on described spline limit; Flip to the outside 90 ° the loosening spline limit of anti-stop nut, the described second plain washer edge is generally two, and two relative parallel edges of stop nut are close on described two spline limits.
After adopting above structure, the stretch-draw of monofilament drag-line stretch-draw end and anchor device are compared with above prior art under the utility model control stress for prestressing, have the following advantages:
Though the utility model monofilament drag-line still is under the low control stress for prestressing, be subject to the interference of microseism or other reasons, but owing to be fastened on the effect on the spline limit of the plain washer on the end column, make the utility model avoid making the phenomenon of nut loosening fully because of microseism or other reasons, ensure the stretch-draw of monofilament drag-line under the low control stress for prestressing of the utility model and the functional reliability of anchor device, the continuity and the safety of use effectively, further prolonged the application life of the utility model device.
As improvement, also be provided with spring washer on the core through screw rod of the described first clamp nut inboard, described spring washer is pressed between first clamp nut and first plain washer, makes above advantage more outstanding.
Description of drawings
Fig. 1 is the stretch-draw of the stretch-draw end of minor diameter steel monofilament drag-line under the low control stress for prestressing of prior art and the sectional structure schematic diagram (illustrating in background technology, so no longer mention in the following specific embodiment) of anchor device.
Fig. 2 is the stretch-draw of the stretch-draw end of minor diameter (steel) monofilament drag-line under the low control stress for prestressing of the utility model and the sectional structure schematic diagram of anchor device.
Fig. 3 is the sectional structure schematic diagram along the A-A line among Fig. 2.
Fig. 4 is the sectional structure schematic diagram along the B-B line among Fig. 2.
Fig. 5 is the structural representation of the plain washer (spline packing ring) of the stretch-draw of the stretch-draw end of minor diameter steel monofilament drag-line under the low control stress for prestressing of the utility model and anchor device.
Shown in the figure
The component of prior art: 100, column, 101, the monofilament drag-line, 102, connector, 103, core through screw rod, 104, clamp nut;
Component of the present utility model; 1, monofilament drag-line, 1.1, heading, 2, the supporting anchor head, 3, core through screw rod, 4, first clamp nut, 5, spring washer, 6, first plain washer, 7, second plain washer, 8, the spline short screw, 9, stop nut, 10, the end column, 11, second clamp nut.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As Fig. 2, Fig. 3, Fig. 4, shown in Figure 5.
The stretch-draw and the anchor device of monofilament drag-line stretch-draw end under the low control stress for prestressing of the utility model, comprise that two ends are respectively equipped with the minor diameter monofilament drag-line 1 of heading 1.1, described minor diameter refers generally to 10mm following (comprising 10mm), the material of monofilament drag-line 1 generally adopts steel, promptly generally claims steel minor diameter monofilament drag-line.
The stretch-draw of head end shown in Fig. 2 and anchor device, and the structure of the stretch-draw of tail end and anchor device and head end is identical, only direction is just in time opposite.The stretch-draw and the anchor device of monofilament drag-line stretch-draw end under the low control stress for prestressing of the utility model, also comprise be located at respectively two stretch-draw ends be movably combined on the monofilament drag-line 1 and part is arranged in the core through screw rod 3 of end column 10 hole (not shown)s, be positioned at end column 10 both sides and be tightened on first clamp nut 4 and second clamp nut 11 on the core through screw rod 3.
Two tangent planes that are parallel to each other are arranged on the excircle of the axial inner ends of described core through screw rod 3.The axial length of two tangent planes that are parallel to each other is on the described core through screw rod 3 axial inner ends excircles: the gauge that is no less than twice column 10 from its length dimension of inner face of core through screw rod 3, after guaranteeing 1 elongation of monofilament drag-line, the tangent plane position of core through screw rod 3 still the end column 10 the inboard, thereby make following stop bit short screw 8 and stop nut 9 can be pressed on all the time the end column 10 medial surface; Also be not more than half of core through screw rod 3 overall length dimension, after guaranteeing 1 elongation of monofilament drag-line, the tangent plane position of core through screw rod 3 still is no more than the outer wall of end column 10, so that first clamp nut 4 can all be in the circumferential thread section, thereby makes its stretch-draw and anchoring dynamics better.From general knowledge as can be known, there is not screw thread on these two tangent planes that are parallel to each other.The promptly interior hole shape of one shape of a hoof and this end core through screw rod 3 profiles match and opening and threaded spline short screw 8 sliding fits of its cylindrical are arranged on this end core through screw rod 3, the external screw thread of this spline short screw 8 is opposite with the hand of spiral of core through screw rod 3, and promptly the external screw thread of spline short screw 8 is the left-hand thread opposite with the hand of spiral of core through screw rod 3.Be combined with stop nut 9 on the external screw thread of this spline short screw 8.According to general knowledge as can be known, the screw thread on the stop nut 9 is similarly left-hand thread.On the core through screw rod 3 of described first clamp nut 4 inboards from clip end column 10 lateral walls to being to be provided with first plain washer 6 and spring washer 5 Fig. 2 from right to left away from end column 10 lateral walls.Described first plain washer 6 tightens up as present embodiment and is fastened on the lateral wall of end column 10 by a pair of dormant bolt (unlabelled hole only is shown among Fig. 5, and not shown dormant bolt).The edge of described first plain washer 6 has two to be the loosening spline limit of anti-first clamp nut 4 of 90 ° of left side upsets among Fig. 2 laterally, and two relative parallel edges of first clamp nut 4 are close on described spline limit.On the core through screw rod 3 of described second clamp nut 11 inboards from clip end column 10 inside walls to being provided with second plain washer 7, the spline short screw 8 that screws mutually and stop nut 9 successively away from end column 10 inside walls (Fig. 2 from left to right).(second plain washer 7 is identical with first plain washer, 6 structures for described second plain washer 7, so not shown) fastening as present embodiment by a pair of dormant bolt be fastened on the end column 10 inside wall on, there is the loosening spline limit of the anti-stop nut 9 of 90 ° of two (among Fig. 2 to the right) upsets to the inside at the edge of described second plain washer 7, and stop nut 9 corresponding two parallel edges are close on described spline limit.
After adopting above structure, the application on first plain washer 6 and second plain washer, 7 spline limits makes nut have good anti-loosing effect.The application of spring washer 5 makes the anti-loosing effect of first clamp nut 4 better.Spline short screw 8 and stop nut 9 adopt the left-hand thread opposite with the hand of thread spiral of core through screw rod 3, also be further to guarantee stop nut 9 tight measures: when core through screw rod 3 when first clamp nut 4 clockwise rotates, must drive spline short screw 8 also will clockwise rotate, and stop nut 9 is also wanted clockwise if rotate, because the hand of thread spiral of spline short screw 8 and stop nut 9 is counterclockwise, stop nut 9 was pressed on second plain washer 7 and can not rotates again this moment, so stop nut 9 can not change by the another mistake hour hands, and the spline assembly that spline short screw 8 and stop nut 9 formed is fixed by second clamp nut, 11 axial compression on core through screw rod 3, first clamp nut 4 and second clamp nut 11 and core through screw rod 3 is played the effect of locking spline.
The utility model also comprises the supporting anchor head 2 on the monofilament drag-line 1 between heading 1.1 and the core through screw rod 3 of being placed in of being located at one at two stretch-draw ends, one end.Described supporting anchor head 2 is concavo-convex arc surface with the end face that combines of core through screw rod 3.Supporting anchor head 2 is the plane with the end face that combines between the heading 1.1.
After adopting above structure, when first clamp nut 4 was tightened, it is also outwards mobile that core through screw rod 3 just moves and drive supporting anchor head 2 and heading 1.1 laterally, and then tension monofilament drag-line 1 reaches the stretch-draw purpose.First clamp nut 4 is tightened under moment loading, also may drive core through screw rod 3 rotates, but because supporting anchor head 2 is the circular arc type curved surface with core through screw rod 3 contact surfaces, just make original plane hard friction become pivoting friction, promptly become circular arc pivoting friction between core through screw rod 3 and the supporting anchor head 2 by plane hard friction between original heading 1.1 and the core through screw rod, nature, resistance when first clamp nut 4 is tightened just greatly reduces, monofilament drag-line 1 is subjected to the state of pulling force the possible state of being turned round also can not occur, can effectively alleviate difficulty of construction, improve work efficiency, guarantee that drag-line is stressed rationally.
Below only be described, but can not be interpreted as it is restriction claim with regard to the utility model preferred embodiment.The utility model not only is confined to above embodiment, and its concrete structure allows variation, as: the spline limit at the edge of described first plain washer 6 and second plain washer 7 also can be one; The spline limit at the edge of described first plain washer 6 and second plain washer 7 also can be not parallel but be close to two spline limits on non-conterminous two limits of nut; Described plain washer tightens up structures such as also can adopting riveted joint and is fixed tightly on the column sidewall; The length of two tangent planes that are parallel to each other also allows variation on the core through screw rod 3 axial inner ends excircles; Or the like.In a word, all various variations of being done in the protection domain of the utility model product independent claims are all in protection domain of the present utility model.
Claims (9)
1, the stretch-draw and the anchor device of monofilament drag-line stretch-draw end under a kind of low control stress for prestressing, comprise that two ends are respectively equipped with the minor diameter monofilament drag-line (1) of heading (1.1), be located at the core through screw rod (3) that monofilament drag-line (1) upward and partly is arranged in end column (10) hole that is movably combined in of two stretch-draw ends respectively, be positioned at end column (10) both sides and screw first clamp nut (4) and second clamp nut (11) on core through screw rod (3), it is characterized in that: the inboard core through screw rod (3) of described first clamp nut (4) is provided with first plain washer (6), described first plain washer (6) is fixed tightly in the outside of end column (10), the spline limit that the edge of described first plain washer (6) has at least one anti-first clamp nut (4) that flips to the outside 90 ° to become flexible, (4) limits of first clamp nut are close on described spline limit; The inboard core through screw rod (3) of described second clamp nut (11) is provided with second plain washer (7), described second plain washer (7) is fixed tightly in the inboard of end column (10), there is at least one overturn to the inside 90 ° the spline limit of anti-nut loosening at the edge of described second plain washer (7), and limit of this nut is close on described spline limit.
2, the stretch-draw and the anchor device of monofilament drag-line under the low control stress for prestressing according to claim 1, it is characterized in that: also be provided with spring washer (5) on the core through screw rod (3) of described first clamp nut (4) inboard, described spring washer (5) is pressed between first clamp nut (4) and first plain washer (6).
3, the stretch-draw and the anchor device of monofilament drag-line under the low control stress for prestressing according to claim 1, it is characterized in that: flip to the outside 90 ° the loosening spline limit of anti-first clamp nut (4), described first plain washer (6) edge is two, and two relative parallel edges of first clamp nut (4) are close on described two spline limits.
4, the stretch-draw and the anchor device of monofilament drag-line under the low control stress for prestressing according to claim 1, it is characterized in that: two tangent planes that are parallel to each other are arranged on the excircle of the axial inner ends of described core through screw rod (3), interior hole shape and this end core through screw rod (3) profile match and threaded spline short screw (8) sliding fit are arranged on opening and its excircle on this end core through screw rod (3), the external screw thread of this spline short screw (8) is opposite with the hand of spiral of core through screw rod (3), is combined with stop nut (9) on the external screw thread of this spline short screw (8).
5, the stretch-draw and the anchor device of monofilament drag-line under the low control stress for prestressing according to claim 4, it is characterized in that: the length of two tangent planes that are parallel to each other is on described core through screw rod (3) the axial inner ends excircle: be no less than the gauge of twice end column (10) from its length dimension of inner face of core through screw rod (3), also be not more than half of core through screw rod (3) overall length dimension.
6, according to the stretch-draw and the anchor device of monofilament drag-line under the low control stress for prestressing described in the claim 4, it is characterized in that: the inboard core through screw rod (3) of described second clamp nut (11) is provided with second plain washer (7), refers to the spline short screw (8) and the stop nut (9) that are provided with second plain washer (7) from left to right, screw mutually on the inboard core through screw rod (3) of described second clamp nut (11); There is at least one overturn to the inside 90 ° the spline limit of anti-nut loosening at the edge of described second plain washer (7), and there is at least one overturn to the inside 90 ° the loosening spline limit of anti-stop nut (9) at the edge that refers to described second plain washer (7); Limit of this nut is close on described spline limit, refers to that described spline limit is close to a limit of stop nut (9).
7, the stretch-draw and the anchor device of monofilament drag-line under the low control stress for prestressing according to claim 6, it is characterized in that: flip to the outside 90 ° the loosening spline limit of anti-stop nut (9), described second plain washer (7) edge is two, and two relative parallel edges of stop nut (9) are close on described two spline limits.
8, the stretch-draw and the anchor device of monofilament drag-line under the low control stress for prestressing according to claim 1, it is characterized in that: described first plain washer (6) is fixed tightly in the outside of end column (10), refers to that first plain washer (6) is fixed tightly in the outside of end column (10) through the dormant bolt and the screwed hole in the outside being located at the through hole on first plain washer (6) and being located at end column (10).
9, the stretch-draw and the anchor device of monofilament drag-line under the low control stress for prestressing according to claim 1, it is characterized in that: described second plain washer (7) is fixed tightly in the inboard of end column (10), refers to that second plain washer (7) is fixed tightly in the inboard of end column (10) through the dormant bolt and the screwed hole of inboard being located at the through hole on second plain washer (7) and being located at end column (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820087988XU CN201221156Y (en) | 2008-05-26 | 2008-05-26 | Tension and anchoring device of single filament guy cable stretching end under low stretching control stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820087988XU CN201221156Y (en) | 2008-05-26 | 2008-05-26 | Tension and anchoring device of single filament guy cable stretching end under low stretching control stress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201221156Y true CN201221156Y (en) | 2009-04-15 |
Family
ID=40574667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820087988XU Expired - Fee Related CN201221156Y (en) | 2008-05-26 | 2008-05-26 | Tension and anchoring device of single filament guy cable stretching end under low stretching control stress |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201221156Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105256A (en) * | 2013-01-29 | 2013-05-15 | 葛洲坝集团第五工程有限公司 | Cable-stayed bridge model test cable force test system and method thereof |
-
2008
- 2008-05-26 CN CNU200820087988XU patent/CN201221156Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105256A (en) * | 2013-01-29 | 2013-05-15 | 葛洲坝集团第五工程有限公司 | Cable-stayed bridge model test cable force test system and method thereof |
| CN103105256B (en) * | 2013-01-29 | 2015-08-19 | 葛洲坝集团第五工程有限公司 | A kind of Cable-stayed Bridge Model test cable force test macro and method |
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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: 20090415 Termination date: 20170526 |