CN210368645U - Prestressed tensioning support for bridge - Google Patents
Prestressed tensioning support for bridge Download PDFInfo
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- CN210368645U CN210368645U CN201920788430.2U CN201920788430U CN210368645U CN 210368645 U CN210368645 U CN 210368645U CN 201920788430 U CN201920788430 U CN 201920788430U CN 210368645 U CN210368645 U CN 210368645U
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Abstract
The utility model discloses a prestressing force stretch-draw support for bridge, the power distribution box comprises a box body, the baffle is installed to the inner chamber bottom of box, the inner chamber bottom of box is connected with the circle axle through the bearing along controlling the direction, first gear is all installed to the outer wall left and right sides of circle axle, the screw rod is all installed to the inner chamber top left and right sides of box, the second gear with first gear engaged with is installed to the bottom of screw rod, buffer structure is all installed in the bottom four corners of box. This prestressing force stretch-draw support for bridge, through clockwise rotation screw rod, clockwise rotation is followed to first gear to drive second gear anticlockwise rotation, the anticlockwise rotation is followed to the screw rod simultaneously, make a screw thread section of thick bamboo rise at the outer wall of screw rod, make the jack-up of stretching, can make the device more stable when removing through shock-absorbing structure, guarantee the device can be according to on-the-spot demand adjusting device's height, increase the application scope of device, and when removing, can make the device carry out steady removal.
Description
Technical Field
The utility model relates to a bridge prestressing force construction auxiliary assembly technical field specifically is a prestressing force stretch-draw support for bridge.
Background
In post-tensioning prestressed concrete construction of highway and railway bridges, a plurality of conditions needing prestressed tendons are met, wherein the prestressed tendons are mostly heat-treated steel bars, steel wires and steel strands, when anchorage devices and tensioning equipment are installed, the action line of the tensioning force and the central line of a pore passage are overlapped in the tensioning process for a straight prestressed tendon, and the action line of the tensioning force and the tangent line of the central point of the tail end of the pore passage are overlapped for a curved prestressed tendon.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a prestressing force stretch-draw support for bridge to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a prestressed tensioning support for a bridge comprises a box body, wherein a partition plate is installed at the bottom end of an inner cavity of the box body, a round shaft is connected to the bottom end of the inner cavity of the box body through a bearing in the left-right direction, an inner ring of the round shaft is in interference fit with the round shaft, an outer ring of the round shaft is fixedly connected with the inner wall of the box body, the right side of the round shaft extends out of the box body, the round shaft is located at the bottom end of the partition, first gears are installed on the left side and the right side of the outer wall of the round shaft, first sliding grooves are formed in the left side and the right side of the outer wall of the box body in the up-down direction, screw rods are installed on the left side and the right side of the top end of the inner cavity of the box body, the bottom ends of the screw rods extend to the bottom end of the partition plate, a threaded cylinder is in threaded connection with the, and the top of spliced pole extends the box, the roof is installed on the top of spliced pole, the stretch-draw jack is installed on the top of roof, the second gear with first gear engaged with is installed to the bottom of screw rod, buffer structure is all installed in the bottom four corners of box.
Preferably, the buffer structure comprises a cylinder, a stand column, a first spring, a connecting plate, a connecting rod, a groove, a second chute, a second sliding block, a connecting block and a second spring;
the drum is all installed in the bottom four corners of box, the stand is installed to the inner chamber bottom of drum, and the bottom of stand extends the drum, the universal wheel is installed to the bottom of stand, fixed mounting has first spring between the top of stand and the drum, the outer wall bottom of stand is provided with the connecting plate, the left and right sides of connecting plate all has the connecting rod through the round pin hub connection, the outer wall of the box of the drum top left and right sides all is seted up flutedly, the second spout has been seted up along controlling the direction to both sides around the inner chamber of recess, the inner chamber of second spout is embedded to have assorted second slider, the connecting block is installed to the inboard of second slider, and the bottom of connecting block passes through the round pin hub connection with the connecting rod, fixed mounting has the second spring between the outside of connecting block.
Preferably, the height of the inner cavity of the first sliding chute is the same as the height of the screw threads on the outer wall of the screw.
Preferably, the second gear has a smaller diameter than the first gear.
Preferably, the screw rod is positioned at the left end and the right end of the central position of the inner cavity of the box body.
Compared with the prior art, the beneficial effects of the utility model are that: this prestressing force stretch-draw support for bridge, through clockwise rotation screw rod, clockwise rotation is followed to first gear, and drive second gear anticlockwise rotation, anticlockwise rotation is followed to the screw rod simultaneously, make the screw thread section of thick bamboo rise at the outer wall of screw rod, the spliced pole is followed the rebound, make the jack-up, can make the device more stable when removing through shock-absorbing structure, guarantee the height that the device can be according to on-the-spot demand adjusting device, increase the application scope of device, and when removing, the range of device vibrations is less, can make the device carry out steady removal.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged schematic structural view at a position a of the present invention;
fig. 3 is a schematic structural diagram of a three-dimensional cross-sectional view of the cylinder of the present invention.
In the figure: 1. the box, 2, baffle, 3, round axle, 4, first gear, 5, first spout, 6, screw rod, 7, thread cylinder, 8, first slider, 9, spliced pole, 10, roof, 11, stretch-draw jack, 12, second gear, 13, drum, 14, stand, 15, first spring, 16, connecting plate, 17, connecting rod, 18, recess, 19, second spout, 20, second slider, 21, connecting block, 22, second spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a prestressed tension support for a bridge comprises a box body 1, a partition plate 2 is installed at the bottom end of an inner cavity of the box body 1, a screw 6 can be more stable when rotating through the partition plate 2, the bottom end of the inner cavity of the box body 1 is connected with a round shaft 3 through a bearing in the left-right direction, an inner ring of the round shaft is in interference fit with the round shaft 3, an outer ring of the round shaft is fixedly connected with the inner wall of the box body 1, the right side of the round shaft 3 extends out of the box body 1, the round shaft 3 is positioned at the bottom end of the partition plate 2, first gears 4 are installed on the left side and the right side of the outer wall of the round shaft 3, first sliding grooves 5 are formed in the left side and the right side of the left side of the box body 1 in the up-down direction, screws 6 are installed on the left side and the right side of the top end of the inner cavity of the box body 1, the bottom end of each screw 6 extends to the bottom end, and first slider 8 is embedded in the inner chamber of first spout 5, first slider 8 can be at the inner chamber of first spout 5 reciprocal slip from top to bottom, can prevent simultaneously that a screw thread section of thick bamboo 7 from rotating, spliced pole 9 is installed to the top inboard of a screw thread section of thick bamboo 7, and box 1 is extended on the top of spliced pole 9, roof 10 is installed on the top of spliced pole 9, stretch-draw jack 11 is installed on the top of roof 10, second gear 12 with first gear 4 engaged with is installed to the bottom of screw rod 6, first gear 4 clockwise turning can drive second gear 12 anticlockwise rotation, buffer structure is all installed at the bottom four corners of box 1, can make the device more stable when removing through buffer structure.
Preferably, the buffer structure further comprises a cylinder 13, a column 14, a first spring 15, a connecting plate 16, a connecting rod 17, a groove 18, a second sliding groove 19, a second sliding block 20, a connecting block 21 and a second spring 22;
the bottom four corners of the box body 1 are all provided with cylinders 13, the bottom end of the inner cavity of each cylinder 13 is provided with an upright post 14, the bottom end of each upright post 14 extends out of the corresponding cylinder 13, each upright post 14 can move up and down in the inner cavity of the corresponding cylinder 13, the bottom end of each upright post 14 is provided with a universal wheel, a first spring 15 is fixedly arranged between the top end of each upright post 14 and the corresponding cylinder 13, each first spring 15 is a spiral spring, the elastic coefficient of each first spring 15 is 15N/CM, each first spring 15 generates elastic deformation after being stretched or extruded, and recovers to an initial state after external force is removed, the bottom end of the outer wall of each upright post 14 is provided with a connecting plate 16, the left side and the right side of each connecting plate 16 are connected with connecting rods 17 through pin shafts, grooves 18 are respectively formed in the outer walls of the box body 1 on the left side, second slider 20 can be in the inner chamber of second spout 19 reciprocal slip about, connecting block 21 is installed to second slider 20's inboard, and connecting block 21's bottom and connecting rod 17 pass through the round pin hub connection, when connecting rod 17's top moved to the outside, can drive connecting block 21 and move to the outside, fixed mounting has second spring 22 between connecting block 21's the outside and the inner wall of recess 18, second spring 22 is coil spring, the elastic coefficient is 15N/CM, second spring 22 receives tensile or produces elastic deformation after the extrusion, resume to initial condition after getting rid of external force.
Preferably, the height of the inner cavity of the first sliding chute 5 is the same as the height of the thread on the outer wall of the screw 6, so that when the threaded cylinder 7 moves to the top end of the screw 6, the first sliding block 8 can normally move upwards along the inner cavity of the first sliding chute 5, and collision with the inner wall of the first sliding chute 5 is avoided.
Preferably, the diameter of the second gear 12 is smaller than that of the first gear 4, which saves more labor when the second gear 12 drives the first gear 4, and the moment arm of the second gear 12 is smaller than that of the first gear 4, so that the power of the power point of the second gear 12 is larger than the resistance of the resistance point of the first gear 4, and the labor is saved.
Preferably, the screw rods 6 are located at the left and right ends of the central position of the inner cavity of the box body 1, so that when the top plate 10 ascends or descends, the two ends of the top plate 10 can synchronously ascend or descend in parallel.
The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.
When the height needs to be adjusted, the circular shaft 3 is rotated clockwise by a hand, the first gear 4 rotates clockwise and drives the second gear 12 to rotate anticlockwise, meanwhile, the screw rod 6 rotates anticlockwise to enable the threaded cylinder 7 to move upwards on the outer wall of the screw rod 6, the first sliding block 8 moves upwards in the inner cavity of the first sliding groove 5, the connecting column 9 is lifted, the tensioning jack 11 can be lifted to meet working environments with different heights, when the moving device is integrated, vibration generated by the universal wheel and the ground can be absorbed by the first spring 15 and the second spring 22, the device is more stable in moving, when the universal wheel moves to a convex road section, the universal wheel moves upwards to drive the upright post 14 to move upwards and compress the first spring 15, meanwhile, the top end of the connecting rod 17 moves outwards to drive the connecting block 21 to move outwards and enable the second sliding block 20 to move outwards in the inner cavity of the second sliding groove 19, compress second spring 22, ensure that box 1 can keep steady removal when the universal wheel hugs closely ground, the device can adjust the height according to the demand, and when unevenness's highway section removed, also can keep comparatively stable removal to increase the application scope of device, be favorable to the popularization and the use of device.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; also, unless expressly stated or limited otherwise, the terms "snap" or "coupling" or "snap" or "set" or "mount" are to be construed broadly, e.g., as a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a prestressing force stretch-draw support for bridge, includes box (1), its characterized in that: the baffle plate is installed at the bottom end of the inner cavity of the box body (1), the bottom end of the inner cavity of the box body (1) is connected with a round shaft (3) through a bearing along the left-right direction, the inner ring of the round shaft is in interference fit with the round shaft (3), the outer ring of the round shaft is fixedly connected with the inner wall of the box body (1), the right side of the round shaft (3) extends out of the box body (1), the round shaft (3) is located at the bottom end of the baffle plate (2), first gears (4) are installed on the left side and the right side of the outer wall of the round shaft (3), first sliding grooves (5) are formed in the left side and the right side of the left side of the box body (1) along the up-down direction, screw rods (6) are installed on the left side and the right side of the top end of the inner cavity of the box body (1), the bottom end of the screw rods (6) extends to the bottom end of the baffle plate (2), a threaded cylinder (7), and first slider (8) embedded inner chamber in first spout (5), spliced pole (9) are installed to the top inboard of a screw thread section of thick bamboo (7), and the top of spliced pole (9) extends box (1), roof (10) are installed on the top of spliced pole (9), stretch-draw jack (11) are installed on the top of roof (10), second gear (12) with first gear (4) engaged with are installed to the bottom of screw rod (6), buffer structure is all installed in the bottom four corners of box (1).
2. The prestressed tensioning bracket for a bridge according to claim 1, wherein: the buffer structure comprises a cylinder (13), a stand column (14), a first spring (15), a connecting plate (16), a connecting rod (17), a groove (18), a second sliding groove (19), a second sliding block (20), a connecting block (21) and a second spring (22);
the bottom four corners of the box body (1) are provided with cylinders (13), the bottom end of an inner cavity of each cylinder (13) is provided with a stand column (14), the bottom end of each stand column (14) extends out of the corresponding cylinder (13), the bottom end of each stand column (14) is provided with a universal wheel, a first spring (15) is fixedly arranged between the top end of each stand column (14) and each cylinder (13), the bottom end of the outer wall of each stand column (14) is provided with a connecting plate (16), the left side and the right side of each connecting plate (16) are connected with connecting rods (17) through pin shafts, the outer walls of the box body (1) on the left side and the right side of the top end of each cylinder (13) are provided with grooves (18), the front side and the rear side of the inner cavity of each groove (18) are provided with second sliding grooves (19) in the left and right directions, the inner cavities of the, and the bottom of connecting block (21) and connecting rod (17) pass through the round pin hub connection, fixed mounting has second spring (22) between the outside of connecting block (21) and the inner wall of recess (18).
3. The prestressed tensioning bracket for a bridge according to claim 1, wherein: the height of the inner cavity of the first sliding chute (5) is the same as the height of the screw threads on the outer wall of the screw rod (6).
4. The prestressed tensioning bracket for a bridge according to claim 1, wherein: the diameter of the second gear (12) is smaller than that of the first gear (4).
5. The prestressed tensioning bracket for a bridge according to claim 1, wherein: the screw (6) is positioned at the left end and the right end of the central position of the inner cavity of the box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920788430.2U CN210368645U (en) | 2019-05-29 | 2019-05-29 | Prestressed tensioning support for bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920788430.2U CN210368645U (en) | 2019-05-29 | 2019-05-29 | Prestressed tensioning support for bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210368645U true CN210368645U (en) | 2020-04-21 |
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ID=70262104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920788430.2U Active CN210368645U (en) | 2019-05-29 | 2019-05-29 | Prestressed tensioning support for bridge |
Country Status (1)
| Country | Link |
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| CN (1) | CN210368645U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576223A (en) * | 2020-05-12 | 2020-08-25 | 陕西中立检测鉴定有限公司 | Main tower lower cross beam support pre-pressing device and pre-pressing method thereof |
| CN114717966A (en) * | 2022-05-06 | 2022-07-08 | 安徽路达公路工程有限责任公司 | Bridge prestress device and bridge prestress construction method |
-
2019
- 2019-05-29 CN CN201920788430.2U patent/CN210368645U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576223A (en) * | 2020-05-12 | 2020-08-25 | 陕西中立检测鉴定有限公司 | Main tower lower cross beam support pre-pressing device and pre-pressing method thereof |
| CN114717966A (en) * | 2022-05-06 | 2022-07-08 | 安徽路达公路工程有限责任公司 | Bridge prestress device and bridge prestress construction method |
| CN114717966B (en) * | 2022-05-06 | 2024-04-30 | 安徽路达公路工程有限责任公司 | Bridge prestress device and bridge prestress construction method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.30, Tiancheng Road, Tianqiao District, Jinan City, Shandong Province Patentee after: Shandong highway and Bridge Construction Group Co.,Ltd. Address before: No.30, Tiancheng Road, Tianqiao District, Jinan City, Shandong Province Patentee before: SHANDONG HIGHWAY & BRIDGE CONSTRUCTION Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |