CN201221157Y - Stretching and anchoring anti-loose device of single filament guy cable stretching end under low stretching control stress - Google Patents
Stretching and anchoring anti-loose device of single filament guy cable stretching end under low stretching control stress Download PDFInfo
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- CN201221157Y CN201221157Y CNU2008200879907U CN200820087990U CN201221157Y CN 201221157 Y CN201221157 Y CN 201221157Y CN U2008200879907 U CNU2008200879907 U CN U2008200879907U CN 200820087990 U CN200820087990 U CN 200820087990U CN 201221157 Y CN201221157 Y CN 201221157Y
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- screw rod
- core
- drag
- spline
- stretch
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Abstract
The utility model discloses an anti-loosening 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 (3), 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 (1); the first and the second tightening nuts (4, 11) are located on both sides of the terminal upright post (10) and tightly screwed on the penetrating screw rod (3); the outer circumference of the axial inner end of the penetrating screw rod (3) is provided with two cut surfaces which are parallel to each other; the shape of the inner hole provided with an opening matches the shape of the terminal penetrating screw rod (3); a rotation-stopping short screw rod (8), the outer circumference of which is provided with a thread, is fitted on the terminal penetrating screw rod (3) in a sliding way; and the outer thread of the rotation-stopping short screw rod (8), on which a stop nut is screwed, is a reversed thread. The device can prevent the tightening nuts and the penetrating screw rod (3) from being loosened from the guy by slight vibration 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 anchor locking 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 structure of the stretch-draw anchor locking device of monofilament drag-line stretch-draw end is 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 anchor locking device of monofilament drag-line stretch-draw end 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, drag-line makes clamp nut and core through screw rod loosening easily under microseism or other reasons, relax no pulling force etc. and cause drag-line to connect inefficacy as drag-line, and 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 prevents under microseism or other reasons, to make clamp nut and core through screw rod loosening and cause drag-line to be connected inefficacy, thus the stretch-draw anchor locking device of monofilament drag-line stretch-draw end under the low control stress for prestressing of the normal use of assurance drag-line and safety.
The technical solution of the utility model is, the stretch-draw anchor locking device of monofilament drag-line stretch-draw end under a kind of low control stress for prestressing with following structure is 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, 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, interior hole shape and this end core through screw rod profile match and threaded spline short screw sliding fit are arranged on opening and its excircle on this end core through screw rod, the external screw thread of this spline short screw is opposite with the hand of spiral of core through screw rod, be combined with stop nut on the external screw thread of this spline short screw, described second clamp nut is positioned at the spline short screw and the side away from end column inside wall of the stop nut that screws with it.
The length of two tangent planes that are parallel to each other is on the described core through screw rod axial inner ends excircle: be no less than the gauge of twice end column from its length dimension of inner face of core through screw rod, also be not more than half of core through screw rod overall length dimension.
After adopting above structure, the stretch-draw anchor locking device of monofilament drag-line stretch-draw end is compared with above prior art under the utility model control stress for prestressing, has 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 taked above anti-loosening measure, the utility model has been avoided making nut and the loosening phenomenon of core through screw rod because of microseism or other reasons fully, ensure the functional reliability of the stretch-draw anchor locking device of monofilament drag-line under the low control stress for prestressing of the utility model, the continuity and the safety of use effectively, further prolonged the application life of the utility model device.
Extremely be provided with first plain washer and spring washer successively from clip end column lateral wall on the core through screw rod of the described first clamp nut inboard away from end column lateral wall, described first plain washer is fastened on the lateral wall of end column, described first plain washer has two loosening spline limits of anti-first clamp nut of 90 ° of flipping to the outside, and two relative parallel edges of first clamp nut are close on described two spline limits; The spline short screw and the stop nut that extremely are provided with second plain washer successively, screw mutually from clip end column inside wall on the core through screw rod of the described second clamp nut inboard away from end column inside wall, described second plain washer is fastened on the inboard of end column, there are two loosening spline limits of anti-stop nut of 90 ° of overturning to the inside at the edge of described second plain washer, and two relative parallel edges of stop nut are close on described spline limit.Like this, make the above-mentioned advantage of the utility model more outstanding.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of the stretch-draw anchor locking device of steel monofilament drag-line stretch-draw end under the low control stress for prestressing of prior art.
Fig. 2 is the sectional structure schematic diagram of the stretch-draw anchor locking device of (steel) monofilament drag-line stretch-draw end under the low control stress for prestressing of the utility model.
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 anchor locking device of monofilament drag-line stretch-draw end under the low control stress for prestressing of the utility model.
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 anchor locking 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 anchor locking device of head end shown in Fig. 2, and the structure of the stretch-draw anchor locking device of tail end and head end is identical, only direction is just in time opposite.The stretch-draw anchor locking 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.Described second clamp nut 11 is positioned at spline short screw 8 and the side away from end column 10 inside walls of the stop nut 9 that screws with it.
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, spline short screw 8 and stop nut 9 adopt the left-hand thread spiral opposite with the hand of thread spiral of core through screw rod 3, be to guarantee first clamp nut 4 and the 11 tight measures of second clamp nut: 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.And the application on the spring washer 5 and first plain washer 6 and second plain washer, 7 spline limits makes the better effects if of locking spline.
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 multiple variation, as: 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; The spline limit at the edge of described first plain washer 6 and second plain washer 7 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; Or the like.In a word, all various variations of being done in the protection domain of the utility model independent claims are all in protection domain of the present utility model.
Claims (3)
1, the stretch-draw anchor locking 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: 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), be combined with stop nut (9) on the external screw thread of this spline short screw (8), described second clamp nut (11) is positioned at spline short screw (8) and the side away from end column (10) inside wall of the stop nut (9) that screws with it.
2, the stretch-draw anchor locking device of monofilament drag-line stretch-draw end under the low control stress for prestressing according to claim 1, 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.
3, stretch-draw anchor locking device according to monofilament drag-line stretch-draw end under any one described low control stress for prestressing in claim 1 or 2, it is characterized in that: the inboard core through screw rod (3) of described first clamp nut (4) is gone up from clip end column (10) lateral wall to being provided with first plain washer (6) and spring washer (5) successively away from end column (10) lateral wall, described first plain washer (6) is fastened on the lateral wall of end column (10), described first plain washer (6) has two loosening spline limits of anti-first clamp nut (4) of 90 ° of flipping to the outside, and two relative parallel edges of first clamp nut (4) are close on described two spline limits; The inboard core through screw rod (3) of described second clamp nut (11) is gone up from clip end column (10) inside wall to the spline short screw (8) and the stop nut (9) that are provided with second plain washer (7) successively, screw mutually away from end column (10) inside wall, described second plain washer (7) is fastened on the inboard of end column (10), there are two loosening spline limits of anti-stop nut (9) of 90 ° of overturning to the inside at the edge of described second plain washer (7), and two relative parallel edges of stop nut (9) are close on described spline limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200879907U CN201221157Y (en) | 2008-05-26 | 2008-05-26 | Stretching and anchoring anti-loose device of single filament guy cable stretching end under low stretching control stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200879907U CN201221157Y (en) | 2008-05-26 | 2008-05-26 | Stretching and anchoring anti-loose device of single filament guy cable stretching end under low stretching control stress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201221157Y true CN201221157Y (en) | 2009-04-15 |
Family
ID=40574668
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200879907U Expired - Fee Related CN201221157Y (en) | 2008-05-26 | 2008-05-26 | Stretching and anchoring anti-loose device of single filament guy cable stretching end under low stretching control stress |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201221157Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110804941A (en) * | 2019-11-20 | 2020-02-18 | 佛山科学技术学院 | Stay cable stretching anchoring anti-retraction device |
-
2008
- 2008-05-26 CN CNU2008200879907U patent/CN201221157Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110804941A (en) * | 2019-11-20 | 2020-02-18 | 佛山科学技术学院 | Stay cable stretching anchoring anti-retraction device |
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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 |
Granted publication date: 20090415 Termination date: 20170526 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |