CN203957120U - Prestressed concrete electric pole stretching and anchoring device - Google Patents
Prestressed concrete electric pole stretching and anchoring device Download PDFInfo
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- CN203957120U CN203957120U CN201420381226.6U CN201420381226U CN203957120U CN 203957120 U CN203957120 U CN 203957120U CN 201420381226 U CN201420381226 U CN 201420381226U CN 203957120 U CN203957120 U CN 203957120U
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- stretch
- draw
- tensioning head
- tension rod
- link plate
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- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 18
- 238000004873 anchoring Methods 0.000 title claims abstract description 15
- 238000004080 punching Methods 0.000 claims description 18
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a kind of prestressed concrete electric pole stretching and anchoring device, belongs to electric power conveying technology field.Prestressed concrete electric pole stretching and anchoring device of the present utility model comprises tension rod and tensioning head, is provided with stretch-draw pawl on tension rod, and tensioning head inside is provided with link plate, and link plate gap can be passed through for stretch-draw pawl, and stretch-draw pawl gap can be passed through for link plate.Stretch-draw in the utility model adopts arranges respectively stretch-draw pawl and link plate on tension rod and tensioning head, realizes fastening and the disengagement of tension rod and tensioning head by the relative position that rotates the two, has realized tension rod and has been connected with the quick and convenient of tensioning head.Stretching force passes through the axial stable delivery of the body of rod of tension rod to tensioning head, can not produce the deflection of stretching force.
Description
Technical field
The utility model relates to a kind of prestressed concrete electric pole stretching and anchoring device, belongs to electric power conveying technology field.
Background technology
Along with the fast development of China's power industry, bearing capacity and life requirement to concurrent are also more and more higher, particularly prestressed concrete electric pole, and the low and long service life of its price, on market, demand is large.But the prestressed concrete electric pole that bearing capacity is larger, its stretching force bearing is also larger, and this just has higher requirement to the processing of prestressed concrete electric pole.In the process of manufacture of prestressed concrete electric pole, stretch-draw is critical process, and it directly has influence on the product quality of electric pole.
Conventional stretching and anchoring device generally comprises stretch-draw traction piece, tensioning head, fastening support part etc.The patent No. is that 201320142479.3 Chinese patent discloses a kind of tensioning equipment for the large large tip of moment of flexure footpath prestressed reinforced concrete electric pole, and its stretch-draw traction piece is that stretch-draw pawl, tensioning head are steel plate ring, and fastening support part is fixed disk, also comprises support.The pulling shaft of jack is by tensioning nut and the screwed connection of stretch-draw pawl, and stretch-draw pawl is connected with steel plate ring, and Bar Anchorage is on steel plate ring.Described fixed disk is sheathed on steel plate ring outer wall, fixed disk is provided with the screw rod for withstanding punching block, and the pulling shaft of jack is through the through hole of support, and support withstands the flanged plate of punching block by the spike arranging on support, its spike is dismountable movable supporting feet, and is arranged in the spike cover on support.This tensioning equipment is connected transmission stretching force with steel plate ring by stretch-draw pawl, because stretch-draw pawl is connected with steel plate ring by longer hook pawl, under larger stretching force effect, hook pawl and be easily out of shape and cause stretching force suffered on steel plate ring inhomogeneous, also easily cause stretch-draw pawl and steel plate ring distortion.This tensioning equipment withstands punching block by the screw rod on fixed disk, lifting surface area between screw rod and punching block is very little, screw rod easily deforms compared with large pressure owing to being subject to, cause steel plate ring loosening, deformed bar stretch-draw effect dies down and even disappears, and the each screw rod of fastening needs of screw rod operates separately, operation is loaded down with trivial details.
Utility model content
The purpose of this utility model is to provide a kind of tension rod and tensioning head is easy to connect and the uniform prestressed concrete electric pole stretching and anchoring device of stretching force transmission.
In order to realize above object, the technical solution of the utility model is as follows:
A kind of prestressed concrete electric pole stretching and anchoring device, comprise the tensioning head for the reinforcing bar that is connected, for be connected and draw the stretch-draw traction piece of tensioning head with jack, by Screw assembly on tensioning head for block on punching block to keep the screw threads for fastening support member of tensioning state of tensioning head, described stretch-draw traction piece is shaft-like tension rod, described tensioning head inside is provided with the through hole entering for the head of tension rod, on described through-hole wall, edge is circumferentially evenly arranged at intervals with the plural link plate extending to described through hole center, tension rod head is along being circumferentially evenly arranged at intervals with the plural stretch-draw pawl for coordinating with described link plate block, between described spaced link plate, leave the link plate gap that can pass through for stretch-draw pawl, between described spaced stretch-draw pawl, leave the stretch-draw pawl gap of passing through for link plate.
Described link plate and the face of corresponding stretch-draw pawl contact are the inclined-plane that cooperatively interacts or the vertical plane perpendicular to tension rod axial line.
The annular of establishing the cylindrical shell of described through hole in described tensioning head comprises and be located at cylindrical shell periphery turns edge, and the described annular upper edge that turns edge is circumferentially arranged at intervals with the reinforced hole for connecting reinforcement.
Described screw threads for fastening support member is anchor disc, anchor disc comprises the boss of trying to get to the heart of a matter and being convexly set in the front end of trying to get to the heart of a matter, boss has the front end face for coordinating with punching block block, the described center of trying to get to the heart of a matter is provided with the screwed hole with described tensioning head threaded engagement, the afterbody of described tensioning head cylindrical shell is provided with external screw thread, be connected with the try to get to the heart of a matter screwed hole threaded engagement at center of described anchor disc, in the periphery of the boss of described anchor disc, be provided with rotating handle.
Stretch-draw in the utility model adopts arranges respectively stretch-draw pawl and link plate on tension rod and tensioning head, realizes fastening and the disengagement of tension rod and tensioning head by the relative position that rotates the two, has realized tension rod and has been connected with the quick and convenient of tensioning head.By being set, shaft-like tension rod is connected with jack piston rod, the body of rod axial stable delivery of the stretching force that can make jack by tension rod is to tensioning head, can not produce the deflection of stretching force, stretch-draw pawl is the fixed lobe on tension rod, under the effect of larger stretching force, tension rod and stretch-draw pawl are all difficult for producing distortion, have effectively ensured even, the stable delivery of stretching force.
Further, the utility model is sleeved on the anchor disc on tensioning head by setting, after stretching force is stable, can its top be pressed on punching block by rotation anchor disc, can realize anchor disc the Quick fastening of punching block is pushed up and pressed, and anchor disc is by its Pan Bi and punching block top pressure around, adopts outer fixed form, lifting surface area is large, and stretching force is acted on punching block uniformly and stably.In addition, anchor disc Pan Bi has surrounded a space, and tensioning head is positioned at this interior volume, and tension rod is through tensioning head inside, and three members are from inside to outside socketed, and compact conformation, has saved space.
Brief description of the drawings
Fig. 1 is the structural representation of prestressed concrete electric pole stretching and anchoring device embodiment of the present utility model;
Fig. 2 is the side view of the tension rod in Fig. 1;
Fig. 3 is the side view of the tensioning head in Fig. 1;
Fig. 4 is the cutaway view of the anchor disc in Fig. 1;
Fig. 5 is the side view of the anchor disc in Fig. 1.
Detailed description of the invention
The embodiment of prestressed concrete electric pole stretching and anchoring device of the present utility model:
As Figure 1-5, prestressed concrete electric pole stretching and anchoring device of the present utility model comprise for the tensioning head 3 of the reinforcing bar that is connected, for be connected with jack piston rod 6 and draw the stretch-draw traction piece of tensioning head 3 and by Screw assembly on tensioning head 3 for block on punching block 7 to keep the screw threads for fastening support member of tensioning head 3 in tensioning state.Described stretch-draw traction piece is shaft-like tension rod 2, described tensioning head 3 inside are provided with the through hole entering for the head of tension rod 2, on described through-hole wall, edge is circumferentially evenly arranged at intervals with the plural link plate 302 extending to described through hole center, tension rod 2 heads are along being circumferentially evenly provided with the plural stretch-draw pawl 202 for coordinating with described link plate 302 blocks, stretch-draw pawl 202 is along evenly projection spaced apart of the tension rod body of rod 201 outer peripheral faces, between described spaced link plate 302, leave the link plate gap that can pass through for stretch-draw pawl 202, between described spaced stretch-draw pawl 202, leave the stretch-draw pawl gap of passing through for link plate 302.Tension rod 2 afterbody outer walls are provided with connecting thread and are connected with the screw thread on jack piston rod 6 by attaching nut 5.
In the above-described embodiments, the face that link plate 302 contacts with stretch-draw pawl 202 is the inclined-plane cooperatively interacting.
In the above-described embodiments, the cylindrical shell 303 of establishing described through hole in described tensioning head comprises turns edge with the annular of being located at cylindrical shell 303 head peripheries, the described annular upper edge that turns edge is circumferentially arranged at intervals with the reinforced hole 301 for connecting reinforcement, and deformed bar is through reinforced hole 301 and be fixed on tensioning head 3.
In the above-described embodiments, described screw threads for fastening support member is anchor disc 4, anchor disc 4 comprises tries to get to the heart of a matter 402 and be convexly set in the boss 401 of the front end of trying to get to the heart of a matter, boss 401 has the front end face for coordinating with punching block block, described 402 centers of trying to get to the heart of a matter are provided with the screwed hole with described tensioning head 3 threaded engagement, the afterbody of described tensioning head cylindrical shell 303 is provided with external screw thread, be connected with the try to get to the heart of a matter screwed hole threaded engagement at 402 centers of anchor disc, described boss 401 is the upper edge of trying to get to the heart of a matter described in the being fixedly connected on circumferential equally distributed projection of trying to get to the heart of a matter, in the periphery of the boss 401 of described anchor disc 4, be provided with rotating handle.
In the above-described embodiments, what be fixedly connected with setting with jack has a stretch-draw spike 1, described stretch-draw spike 1 comprises supporting disk 102 and is welded to connect the support cylindrical shell 101 on supporting disk, described support cylindrical shell 101 is welded on the cylinder on supporting disk 102 for one end, the other end that supports cylindrical shell 101 has can push up the planar annular vertical with support tube body axis being pressed on punching block 7, and described supporting disk 102 centers are provided with the through hole passing through for jack piston rod 6.
Above-described embodiment in use, stretch-draw spike 1 is fixed on jack holder, the support cylindrical shell of stretch-draw spike 1 101 tops are pressed on punching block 7, jack piston rod 6 is passed to the through hole at stretch-draw spike supporting disk 102 centers and is connected with tension rod, after deformed bar is also fixed through reinforced hole corresponding on tensioning head 3 301, tensioning head 3 is connected in to anchor disc 4 by the external screw thread on its cylindrical shell 303 afterbodys and tries to get to the heart of a matter in the screwed hole at 402 centers, and rotate anchor disc 4 to suitable position.Stretch-draw pawl 202 on tension rod 2 heads is corresponding with the link plate gap in tensioning head cylindrical shell 303, make tension rod 2 through tensioning head 3, rotating tension rod 2 makes stretch-draw pawl 202 corresponding with link plate 302 positions again, the connecting thread of tension rod 2 afterbodys and attaching nut 5 are tightened and be connected, and jack piston rod 6 is connected with attaching nut 5.Start jack, the deformed bar being connected on tensioning head 3 is carried out to stretch-draw, when stretch-draw reaches predetermined elongation value or predetermined stretching force, stop stretch-draw and also stablize the pressure of jack, screw anchor disc 4 anchor disc 4 block tops are pressed on punching block 7, decompression, and by extremely corresponding with tensioning head link plate 302 positions the stretch-draw pawl gap rotation on tension rod 2, tension rod 2 is exited from tensioning head 3, complete stretch-draw operation.Now, the stretching force on deformed bar is passed to anchor disc 4 by tensioning head 3, and is evenly passed on punching block 7 by the dish wall 401 of anchor disc 4.
In other embodiment of the present utility model, the face that described link plate 302 contacts with corresponding stretch-draw pawl 202 is the vertical plane perpendicular to tension rod axial line.
In other embodiment of the present utility model, described tension rod 2 afterbodys and jack piston rod 6 weld together.
In other embodiment of the present utility model, described boss 401 is the annular boss on trying to get to the heart of a matter described in being fixedly connected on.
In other embodiment of the present utility model, described stretch-draw spike 1 adopts and structure identical in prior art.
Claims (4)
1. a prestressed concrete electric pole stretching and anchoring device, comprise the tensioning head (3) for the reinforcing bar that is connected, for be connected and draw the stretch-draw traction piece of tensioning head with jack, by Screw assembly on tensioning head (3) for block on punching block to keep the screw threads for fastening support member of tensioning state of tensioning head (3), it is characterized in that: described stretch-draw traction piece is shaft-like tension rod (2), described tensioning head (3) inside is provided with the through hole entering for the head of tension rod (2), on described through-hole wall, edge is circumferentially evenly arranged at intervals with the plural link plate (302) extending to described through hole center, tension rod (2) head is along being circumferentially evenly arranged at intervals with the plural stretch-draw pawl (202) for coordinating with described link plate block, between described spaced link plate (302), leave the link plate gap that can pass through for stretch-draw pawl (202), between described spaced stretch-draw pawl (202), leave the stretch-draw pawl gap of passing through for link plate (302).
2. prestressed concrete electric pole stretching and anchoring device according to claim 1, is characterized in that: described link plate (302) and the face of corresponding stretch-draw pawl (202) contact are the inclined-plane that cooperatively interacts or the vertical plane perpendicular to tension rod (2) axial line.
3. prestressed concrete electric pole stretching and anchoring device according to claim 1 and 2, it is characterized in that: in described tensioning head (3) comprises, establish the cylindrical shell (303) of described through hole and be located at the peripheral annular of cylindrical shell (303) and turn edge, the described annular upper edge that turns edge is circumferentially arranged at intervals with the reinforced hole (301) for connecting reinforcement.
4. prestressed concrete electric pole stretching and anchoring device according to claim 3, it is characterized in that: described screw threads for fastening support member is anchor disc (4), anchor disc (4) comprises the boss (401) of trying to get to the heart of a matter (402) and being convexly set in the front end of trying to get to the heart of a matter, boss (401) has the front end face for coordinating with punching block (7) block, described trying to get to the heart of a matter (402) center is provided with the screwed hole with described tensioning head (3) threaded engagement, the afterbody of described tensioning head cylindrical shell (303) is provided with external screw thread, be connected with the try to get to the heart of a matter screwed hole threaded engagement at center of described anchor disc, in the periphery of the boss (401) of described anchor disc (4), be provided with rotating handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420381226.6U CN203957120U (en) | 2014-07-10 | 2014-07-10 | Prestressed concrete electric pole stretching and anchoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420381226.6U CN203957120U (en) | 2014-07-10 | 2014-07-10 | Prestressed concrete electric pole stretching and anchoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203957120U true CN203957120U (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420381226.6U Active CN203957120U (en) | 2014-07-10 | 2014-07-10 | Prestressed concrete electric pole stretching and anchoring device |
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| Country | Link |
|---|---|
| CN (1) | CN203957120U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139456A (en) * | 2014-07-10 | 2014-11-12 | 国家电网公司 | Tension anchoring device of pre-stressed concrete pole |
| CN106049964A (en) * | 2016-07-18 | 2016-10-26 | 长沙晟丰电杆制造有限公司 | Tensioning device for flange connector of prestressed concrete telephone pole with big bending moment and big top diameter |
-
2014
- 2014-07-10 CN CN201420381226.6U patent/CN203957120U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139456A (en) * | 2014-07-10 | 2014-11-12 | 国家电网公司 | Tension anchoring device of pre-stressed concrete pole |
| CN104139456B (en) * | 2014-07-10 | 2017-01-04 | 国家电网公司 | A kind of prestressed concrete electric pole stretching and anchoring device |
| CN106049964A (en) * | 2016-07-18 | 2016-10-26 | 长沙晟丰电杆制造有限公司 | Tensioning device for flange connector of prestressed concrete telephone pole with big bending moment and big top diameter |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |