CN216266735U - Stretching and protecting integrated frame for steel strand of prefabricated box girder - Google Patents
Stretching and protecting integrated frame for steel strand of prefabricated box girder Download PDFInfo
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- CN216266735U CN216266735U CN202122001077.9U CN202122001077U CN216266735U CN 216266735 U CN216266735 U CN 216266735U CN 202122001077 U CN202122001077 U CN 202122001077U CN 216266735 U CN216266735 U CN 216266735U
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Abstract
The utility model provides a prefabricated box girder steel strand stretching and protecting integrated frame, which relates to the technical field of steel strand stretching and protecting devices and comprises a top frame, a front side frame and a rear side frame, wherein a movable trolley which is perpendicular to the front side frame and moves is arranged on the top frame, a hoist which is parallel to the front side frame and moves is arranged on the movable trolley, the top frame is of a rectangular structure, sleeves are respectively welded at four corners of the bottom of the top frame, the front side frame comprises a first supporting leg, a second supporting leg and a connecting rod, the connecting rod is respectively connected with the first supporting leg and the second supporting leg, the rear side frame comprises a third supporting leg, a fourth supporting leg and a protecting plate, the protecting plate is respectively connected with the third supporting leg and the fourth supporting leg, and the first supporting leg, the second supporting leg, the third supporting leg and the fourth supporting leg are respectively inserted into the corresponding sleeves, so that the prefabricated box girder steel strand stretching and protecting integrated frame can be combined and disassembled, and is convenient to transport, the problems of large volume, heavy weight and inconvenient turnover and transportation of a steel strand tensioning frame in the prior art are solved.
Description
Technical Field
The utility model belongs to the technical field of steel strand tensioning devices, and particularly provides a prefabricated box girder steel strand tensioning and protecting integrated frame.
Background
In the process of manufacturing the precast concrete box girder, the prestressed anchor cables in the precast concrete box girder need to be tensioned. In the process of tensioning the prestressed anchor cable, an anchorage and a jack are required to be arranged at the end part of the prestressed anchor cable, and the jack is abutted against the end surface of the precast concrete box girder. Because the jack is usually heavy and difficult to transport by hands, the jack is usually hoisted by a steel strand tensioning frame on a construction site.
The existing steel strand tensioning frame is large in size and heavy in weight generally, so that the steel strand tensioning frame is inconvenient to transport and affects construction progress when being moved to the next construction site in a turnover mode.
Accordingly, there is a need in the art for a prefabricated box girder steel strand tensioning protection integrated frame to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a prefabricated box girder steel strand stretching and protecting integrated frame, which solves the problems that a steel strand stretching frame in the prior art is large in size, heavy in weight and inconvenient to transport.
The technical scheme of the utility model is realized as follows: the utility model provides an integrative frame of prefabricated box girder steel strand stretching protection, includes top frame, front frame and back side frame, be provided with the perpendicular to on the top frame the travelling car of front frame activity, be provided with on the travelling car and be on a parallel with the hoist block of front frame activity, top frame is the rectangle structure, and the position in its bottom four corners has welded the sleeve respectively, the front frame includes first landing leg, second landing leg and connecting rod, the connecting rod respectively with first landing leg and second landing leg are connected, back side frame includes third landing leg, fourth landing leg and guard plate, the guard plate respectively with third landing leg and fourth landing leg are connected, first landing leg, second landing leg, third landing leg and fourth landing leg are inserted respectively and are located correspondingly in the sleeve.
In the above preferred technical solution of the prefabricated box girder steel strand tensioning and protecting integrated frame, the top frame includes two first angle steels perpendicular to the front frame, the two first angle steels are connected by steel pipe welding, the vertical portions of the two first angle steels extend upwards, the horizontal portions extend towards the direction close to each other, the movable trolley comprises a channel steel which is arranged in parallel with the front side frame, rotating shafts are welded at two ends of the channel steel, a first roller is rotatably connected to the rotating shaft and placed on the transverse part of the first angle steel, the bottom of the channel steel is provided with a chute along the extending direction thereof, at least one supporting rod vertical to the two side walls of the channel steel is arranged in the channel steel, the two ends of the supporting rod are rotatably connected with second idler wheels, the supporting rod is provided with a lifting ring, and the lifting ring penetrates through the sliding groove and is connected with the lifting hoist.
In the above-mentioned preferred technical scheme of integrative frame of prefabricated box girder steel strand stretching protection, the third landing leg with welded connection has shelves pole between the fourth landing leg, third landing leg and fourth landing leg deviate from two second angle steels of relative setting from top to bottom of one side welded connection of front frame, the second angle steel is along being on a parallel with the direction of front frame extends, the vertical part orientation of second angle steel extends near direction each other, just the vertical part of second angle steel with it establishes to form to press from both sides between third landing leg, the fourth landing leg the space is established to pressing from both sides of guard plate, the guard plate place in press from both sides and establish in the space.
In the preferred technical scheme of the prefabricated box girder steel strand stretching and protecting integrated frame, one ends of the two pieces of second angle steel which are the same are respectively connected with the baffle in a welding mode.
In the above-mentioned preferred technical scheme of the integrative frame of prefabricated box girder steel strand stretching protection, the connecting rod is including the first down tube, horizontal branch and the second down tube that connect gradually, horizontal branch's top with the top of first landing leg is located the coplanar, first down tube deviates from horizontal branch's one end with first landing leg welded connection, the second down tube deviates from horizontal branch's one end with second landing leg welded connection.
In the above-mentioned preferred technical scheme of the integrative frame of prefabricated box girder steel strand stretching protection, set up the first connecting hole that extends along the horizontal direction on the sleeve, set up on first landing leg, second landing leg, third landing leg and the fourth landing leg with the second connecting hole of first connecting hole looks adaptation, the bolt runs through first connecting hole with the second connecting hole will first landing leg, second landing leg, third landing leg and fourth landing leg respectively with corresponding muffjoint.
In the above-mentioned preferred technical scheme of the integrative frame of prefabricated box girder steel strand stretching protection, the front frame with be provided with the stiffener between the rear frame, the stiffener includes outer pole and interior pole, outer pole cover is located the interior pole outside and with interior pole threaded connection, outer pole and interior pole deviate from one end each other and rotate respectively and are connected with the U template, two the U template blocks respectively and locates the front frame with the rear frame.
The utility model has the technical effects that: the steel strand tensioning and protecting integrated frame is arranged into an assembled top frame, a front side frame and a rear side frame, the front side frame and the rear side frame are respectively arranged on the front side and the rear side of the top frame when in use, and the supporting legs of the front side frame and the rear side frame are inserted into sleeves of the top frame; when needing the turnover transportation, with top frame, front-side frame and back side frame split, reduce its occupation space, convenient transportation realizes reuse, resources are saved reduces construction cost.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a prefabricated box girder steel strand stretching and protecting integrated frame;
FIG. 2 is a top view of a top frame of the prefabricated box girder steel strand stretching and protecting integrated frame of the present invention;
FIG. 3 is a front side frame elevation view of a prefabricated box girder steel strand stretching and protecting integrated frame according to the present invention;
FIG. 4 is a front view of a rear side frame of the prefabricated box girder steel strand stretching and protecting integrated frame;
FIG. 5 is a side view of a rear side frame of the prefabricated box girder steel strand stretching and protecting integrated frame;
fig. 6 is a schematic diagram of a reinforcing rod of the prefabricated box girder steel strand stretching and protecting integrated frame.
List of reference numerals: 1. a top frame; 11. a first angle steel; 12. a steel pipe; 2. a front frame; 21. a first leg; 22. a second leg; 23. a connecting rod; 231. a first diagonal member; 232. a horizontal strut; 233. a second diagonal member; 24. a second connection hole; 3. a rear side frame; 31. a third leg; 32. a fourth leg; 33. a protection plate; 34. a gear lever; 35. a second angle steel; 36. a baffle plate; 4. moving the trolley; 41. channel steel; 42. a rotating shaft; 43. a first roller; 44. a chute; 45. a support bar; 46. a second roller; 5. hoisting a hoist; 6. a sleeve; 61. a first connection hole; 7. a reinforcing bar; 71. an outer rod; 72. an inner rod; 73. u-shaped plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model relates to a concrete embodiment of a prefabricated box girder steel strand stretching and protecting integrated frame, which comprises the following steps: as shown in fig. 1, 2, 3 and 4, a prefabricated box girder steel strand stretching and protecting integrated frame comprises a top frame 1, a front side frame 2 and a rear side frame 3, wherein the top frame 1 is provided with a movable trolley 4 moving along the front-rear direction, the movable trolley 4 is provided with a hoist 5 moving along the left-right direction, the top frame 1 is of a rectangular structure, four corners of the bottom of the top frame are respectively welded with a sleeve 6, the sleeve 6 is provided with a first connecting hole 61 extending along the horizontal direction, the front side frame 2 comprises a first supporting leg 21, a second supporting leg 22 and a connecting rod 23, the connecting rod 23 is respectively connected with the first supporting leg 21 and the second supporting leg 22, the rear side frame 3 comprises a third supporting leg 31, a fourth supporting leg 32 and a protection plate 33, the protection plate 33 is respectively connected with the third supporting leg 31 and the fourth supporting leg 32, the first supporting leg 21, the second supporting leg 22, the third supporting leg 31 and the fourth supporting leg 32 are provided with a second connecting hole 24 matched with the first connecting hole 61, the first, second, third and fourth legs 21, 22, 31 and 32 are respectively inserted into the corresponding sleeves 6, and bolts penetrate through the first and second connection holes 61 and 24 to connect the first, second, third and fourth legs 21, 22, 31 and 32 with the corresponding sleeves 6.
As shown in fig. 1 and 2 and with reference to the orientation shown in fig. 1, the top frame 1 includes two first angle steels 11 disposed opposite to each other from left to right, the two first angle steels 11 are connected by welding through a steel pipe 12, the first angle steel 11 includes a transverse portion and a vertical portion perpendicular to each other, the vertical portion of the two first angle steels 11 extends upward, and the transverse portion extends toward a direction close to each other. The movable trolley 4 comprises a channel steel 41 extending in the left-right direction, the channel steel 41 comprises a bottom plate and two side plates, the two side plates extend upwards, rotating shafts 42 are respectively welded at the two ends of the channel steel 41 on the outer sides of the two side plates, a first idler wheel 43 is rotatably connected onto the rotating shafts 42, and the first idler wheel 43 is placed on the transverse part of the first angle steel 11 and moves back and forth along the transverse part of the first angle steel 11; two sliding grooves 44 are formed in the bottom plate of the channel steel 41 at intervals along the extending direction of the channel steel, two supporting rods 45 perpendicular to the two side walls of the channel steel 41 are arranged in the channel steel 41, the two ends of each supporting rod 45 are rotatably connected with second idler wheels 46, the second idler wheels 46 are placed on the bottom plate and located between the two side plates of the channel steel 41, the two supporting rods 45 are respectively provided with lifting rings, the two lifting rings respectively penetrate through the corresponding sliding grooves 44 and are respectively connected with a lifting hoist 5, and the lifting hoist 5 is used for lifting an anchorage device and a jack of a tension steel strand.
As shown in fig. 3, in order to improve the connection strength between the first leg 21 and the second leg 22 and the support stability of the front frame 2 to the top frame 1, in the present embodiment, the connecting rod 23 comprises a first inclined rod 231, a horizontal strut 232 and a second inclined rod 233 which are connected in sequence, the top of the horizontal strut 232 and the top of the first supporting leg 21 are positioned on the same plane, so that, after the first and second legs 21, 22 are connected with the sleeve 6, the horizontal strut 232 can be brought against the top frame 1, the top frame 1 is supported, one end of the first inclined rod 231 departing from the horizontal strut 232 is welded with the first supporting leg 21, one end of the second inclined rod 233 departing from the horizontal strut 232 is welded with the second supporting leg 22, and the first inclined rod 231 and the second inclined rod 233 are bilaterally symmetrical, and the first inclined rod 231 and the second inclined rod 233 support the horizontal support rod 232, so that the stability of the horizontal support rod 232 is ensured.
As shown in fig. 4 and 5, in order to reduce the weight of the rear frame 3 and facilitate the rear frame 3 to be detached and transported, in this embodiment, a stopper rod 34 is welded between the third leg 31 and the fourth leg 32, two second angle steels 35 arranged opposite to each other up and down are welded on sides of the third leg 31 and the fourth leg 32 away from the front frame 2, the second angle steels 35 extend in a direction parallel to the front frame 2, vertical portions of the second angle steels 35 extend in a direction approaching each other, a clamping space for clamping the protection plate 33 is formed between the vertical portions of the second angle steels 35 and the third leg 31 and the fourth leg 32, the protection plate 33 is placed in the clamping space, and a baffle plate 36 is welded on the same end of each of the two second angle steels 35. The protection plate 33 is inserted into the clamping space along the transverse part of the second angle steel 35, when the protection plate 33 abuts against the baffle 36, the protection plate 33 is installed, the baffle rod 34, the third support leg 31 and the fourth support leg 32 stop the protection plate 33 at the front side of the protection plate 33, the vertical part of the second angle steel 35 stops the protection plate 33 at the rear side of the protection plate 33, the installation stability between the protection plate 33 and the rear side frame 3 is guaranteed, and the protection plate 33 has a good protection effect; when transporting, the protection plate 33 is detached from the rear side frame 3, and is separately transported for transportation.
After the top frame 1, the front frame 2 and the rear frame 3 are assembled, in order to further enhance the support stability of the front frame 2 and the rear frame 3 to the top frame 1, a reinforcing rod 7 is arranged between the first supporting leg 21 and the third supporting leg 31, the reinforcing rod 7 comprises an outer rod 71 and an inner rod 72, the outer rod 71 is sleeved outside the inner rod 72 and is in threaded connection with the inner rod 72, one ends of the outer rod 71 and the inner rod 72, which are far away from each other, are respectively and rotatably connected with a U-shaped plate 73, and the two U-shaped plates 73 are respectively clamped on the first supporting leg 21 and the third supporting leg 31; a reinforcing bar 7 is also provided between the second leg 22 and the fourth leg 32.
According to the prefabricated box girder steel strand tensioning and protecting integrated frame, the assembled top frame 1, the front side frame 2 and the assembled rear side frame 3 are arranged, when the prefabricated box girder steel strand tensioning and protecting integrated frame is used, the front side frame 2 and the rear side frame 3 are respectively arranged on the front side and the rear side of the top frame 1, and the supporting legs of the front side frame and the rear side frame are inserted into the sleeves 6 of the top frame 1, the hanging gourd 5 is used for hoisting anchorage devices and jacks for tensioning steel strands, the front and rear direction positions are adjusted through the movable trolley 4, the left and right direction positions are adjusted through the supporting rod 45 on the movable trolley 4, tensioning of the steel strands at different positions on the prefabricated box girder is achieved, and the tensioning and protecting integrated frame is prevented from being frequently moved; when needing the turnover transportation, with top frame 1, the front frame side frame 2 and the 3 splits of back side frame, reduce its occupation space, convenient transportation realizes reuse, resources are saved reduces construction cost.
In the above embodiment, the top frame includes the first angle steel and the steel pipe of connecting two first angle steels that control relative setting, and the travelling car includes the channel-section steel and sets up the first gyro wheel at the channel-section steel both ends, and first gyro wheel is located the transverse part of first angle steel, along the transverse part activity of first angle steel, and in other embodiments, the top frame includes the I-steel that control relative setting and the steel pipe of connecting two I-steels, and the second gyro wheel of travelling car is located the bottom pterygoid lamina of I-steel, along the activity of bottom pterygoid lamina.
In the above embodiment, the travelling car includes the channel-section steel and sets up in the first gyro wheel at channel-section steel both ends, the spout has been seted up on the bottom plate of channel-section steel, be provided with the bracing piece in the channel-section steel, the both ends of bracing piece are provided with the second gyro wheel, be provided with rings on the bracing piece, rings pass the spout and are connected with the hoist, in other embodiments, the travelling car includes the I-steel, first gyro wheel sets up in the both ends of I-steel, the I-steel below is provided with the U-shaped bracing piece, the both ends of U-shaped bracing piece are located the I-steel both sides and towards the pivot that the I-steel extends, be provided with the second gyro wheel in the pivot, the U-shaped bracing piece passes through second gyro wheel and I-steel sliding connection, be provided with rings on the U-shaped bracing piece, the hoist is connected to rings.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an integrative frame of prefabricated box girder steel strand stretching protection, a serial communication port, including top frame, front frame and back side frame, be provided with the perpendicular to on the top frame the travelling car of front frame activity, be provided with on the travelling car and be on a parallel with the hoist block that the front frame moved about, top frame is the rectangle structure, and the position in its bottom four corners has welded the sleeve respectively, the front frame includes first landing leg, second landing leg and connecting rod, the connecting rod respectively with first landing leg and second landing leg are connected, the back side frame includes third landing leg, fourth landing leg and guard plate, the guard plate respectively with third landing leg and fourth landing leg are connected, first landing leg, second landing leg, third landing leg and fourth landing leg are inserted respectively and are located correspondingly in the sleeve.
2. The integral precast box girder steel strand stretching and protecting frame as claimed in claim 1, wherein the top frame comprises two first angle steels perpendicular to the front frame, the two first angle steels are connected by steel pipe welding, vertical portions of the two first angle steels extend upwards, and transverse portions of the two first angle steels extend towards directions close to each other, the moving trolley comprises a channel steel parallel to the front frame, rotating shafts are welded at two ends of the channel steel, first rollers are rotatably connected to the rotating shafts, the first rollers are placed on the transverse portions of the first angle steels, a chute is formed in the bottom of the channel steel along the extending direction of the channel steel, at least one supporting rod perpendicular to two side walls of the channel steel is arranged in the channel steel, second rollers are rotatably connected to two ends of the supporting rod, and a lifting ring is arranged on the supporting rod, the hanging ring penetrates through the sliding groove and is connected with the hanging hoist.
3. The integrated frame for stretching and protecting the steel strand of the prefabricated box girder according to claim 2, wherein a stopper rod is welded between the third supporting leg and the fourth supporting leg, two second angle steels oppositely arranged from top to bottom are welded on one side of the front side frame away from the third supporting leg and the fourth supporting leg, the second angle steels extend in a direction parallel to the front side frame, vertical parts of the second angle steels extend towards directions close to each other, a clamping space for clamping the protection plate is formed between the vertical parts of the second angle steels and the third supporting leg and the fourth supporting leg, and the protection plate is placed in the clamping space.
4. The integrated prefabricated box girder steel strand tensioning and protecting frame as claimed in claim 3, wherein baffles are welded to the same ends of the two second angle steels.
5. The integrated prefabricated box girder steel strand tensioning and protecting frame as claimed in claim 4, wherein the connecting rod comprises a first inclined rod, a horizontal supporting rod and a second inclined rod which are sequentially connected, the top of the horizontal supporting rod and the top of the first supporting leg are located on the same plane, one end of the first inclined rod, which is far away from the horizontal supporting rod, is in welded connection with the first supporting leg, and one end of the second inclined rod, which is far away from the horizontal supporting rod, is in welded connection with the second supporting leg.
6. The integrated prefabricated box girder steel strand tensioning and protecting frame as claimed in any one of claims 1 to 5, wherein the sleeve is provided with a first connecting hole extending in a horizontal direction, the first leg, the second leg, the third leg and the fourth leg are provided with a second connecting hole matched with the first connecting hole, and a bolt penetrates through the first connecting hole and the second connecting hole to connect the first leg, the second leg, the third leg and the fourth leg with the corresponding sleeve respectively.
7. The integrated frame for stretching and protecting the steel strand of the precast box girder according to any one of claims 1 to 5, wherein a reinforcing rod is arranged between the front side frame and the rear side frame, the reinforcing rod comprises an outer rod and an inner rod, the outer rod is sleeved on the outer side of the inner rod and is in threaded connection with the inner rod, one ends of the outer rod and the inner rod, which deviate from each other, are respectively and rotatably connected with U-shaped plates, and the two U-shaped plates are respectively clamped on the front side frame and the rear side frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122001077.9U CN216266735U (en) | 2021-08-24 | 2021-08-24 | Stretching and protecting integrated frame for steel strand of prefabricated box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122001077.9U CN216266735U (en) | 2021-08-24 | 2021-08-24 | Stretching and protecting integrated frame for steel strand of prefabricated box girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216266735U true CN216266735U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122001077.9U Active CN216266735U (en) | 2021-08-24 | 2021-08-24 | Stretching and protecting integrated frame for steel strand of prefabricated box girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216266735U (en) |
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2021
- 2021-08-24 CN CN202122001077.9U patent/CN216266735U/en active Active
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