CN207512581U - A kind of framework type large span combined prestress highway bridge attachment device - Google Patents
A kind of framework type large span combined prestress highway bridge attachment device Download PDFInfo
- Publication number
- CN207512581U CN207512581U CN201721607928.1U CN201721607928U CN207512581U CN 207512581 U CN207512581 U CN 207512581U CN 201721607928 U CN201721607928 U CN 201721607928U CN 207512581 U CN207512581 U CN 207512581U
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- CN
- China
- Prior art keywords
- head rod
- bull stick
- rod
- thread
- attachment device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of framework type large span combined prestress highway bridge attachment devices, including head rod, second connecting rod, bull stick, the both ends of bull stick are respectively arranged with forward screw thread, reverse thread, head rod one end is provided with and matched first internal thread of forward screw thread, and the threaded one end that forward screw thread is provided with bull stick is connect, the head rod other end is provided with the first external screw thread, second connecting rod one end is provided with and matched second internal thread of reverse thread, and the threaded one end that reverse thread is provided with bull stick is connect, the head rod other end is provided with the second external screw thread.The utility model aim is to provide a kind of framework type large span combined prestress highway bridge attachment device that can adjust attachment device length.
Description
Technical field
The utility model belongs to highway bridge equipment technical field, and in particular to a kind of framework type large span combined prestress
Highway bridge attachment device.
Background technology
With the rapid development of social economy, the infrastructure constructions such as national highway bridge have obtained new development.It compares
General structure, framework type large span combined prestress highway bridge because its stress performance is good, using span is big, durability is good,
From heavy and light the advantages that the gradually large-scale use in science of bridge building field.Due to having in the beam body of pre- prestressing force highway bridge through opening
It draws and generates prestressed steel strand wires, need prestressing force beam body being connected with each other when mounted.At present, connector is mostly connecting rod,
Snap ring etc., after prestressing force unloading, connector is not easy to remove with certain stress, and connector length can not realize it is micro-
It adjusts, is not easy to install.
Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome that connector length can not be finely tuned in the prior art
Problem.
For this purpose, the technical solution adopted is that, the utility model provides a kind of framework type large span combined prestress highway bridge
Beam joint device, including head rod, the second connecting rod, bull stick, the both ends of the bull stick are respectively arranged with forward screw thread, anti-
To screw thread, described head rod one end be provided with matched first internal thread of the forward screw thread, and with the bull stick
The threaded one end connection of the forward screw thread is provided with, the head rod other end is provided with the first external screw thread, and described the
Two connecting rod one end be provided with matched second internal thread of the reverse thread, and with the bull stick be provided with it is described reversely
The threaded one end connection of screw thread, the head rod other end are provided with the second external screw thread.
For the ease of adjusting manually, preferred technical solution is to be provided with anti-skid chequer on outer wall among the bull stick.
For the ease of instrument is used to be adjusted, preferred technical solution is to be provided with through-hole among the bull stick.
In order to which tap wrench is used to be adjusted, preferred technical solution is that the shape of the through-hole is polygon.
The length of device is regulated in order to prevent, prevents unexpected factors from leading to bar rotation, and preferred technical solution is to go back
Including fixing device, the fixing device includes casing, the first screw rod, the second screw rod, and Step Shaft is provided among the bull stick,
The diameter of the Step Shaft is more than the diameter of the head rod, and described sleeve pipe is sleeved on the Step Shaft, described sleeve pipe
The inner wall of one end is fixedly connected with the outer wall of the Step Shaft, and the other end of described sleeve pipe extends to the head rod, institute
Stating has the gap of pre-determined distance between the inner wall of casing and the outer wall of the head rod, described sleeve pipe connects close to described first
The first threaded hole is provided through on one end tube wall of extension bar, to first threaded hole about the set on described sleeve pipe tube wall
The axisymmetrical of pipe is provided with the second threaded hole, is provided with the first screw rod in first threaded hole, in second threaded hole
It is provided with the second screw rod.
For the ease of tightening fixing device manually, preferred technical solution is that first screw rod connects far from described first
One end of extension bar is provided with the first knob, and the described one end of second screw rod far from the head rod is provided with the second knob.
The utility model has the advantage of：A kind of framework type large span combined prestress highway bridge of the utility model connects
Connection device, including head rod, the second connecting rod, bull stick, the both ends of bull stick are respectively arranged with forward screw thread, reverse thread,
Head rod one end be provided with matched first internal thread of forward screw thread, and be provided with bull stick one end of forward screw thread
It is threadedly coupled, the head rod other end is provided with the first external screw thread, and second connecting rod one end is provided with to match with reverse thread
The second internal thread closed, and the threaded one end for being provided with bull stick reverse thread is connect, the head rod other end are provided with the
Two external screw threads.Head rod is provided with first externally threaded one end and is threadedly coupled with the first bridge beam body, and the second connecting rod is set
It is equipped with second externally threaded one end to be threadedly coupled with the second bridge beam body, the connection between beam body is just completed, when the first Bridge Beam
Stress is excessive between body and the second bridge beam body, when needing to adjust, only needs positive or rotates backward bull stick, can be achieved with entire
Device stretches, and the length of regulating device realizes the control to connecting stress.
Description of the drawings
Fig. 1 is the structure diagram of the new embodiment one of this practicality.
Fig. 2 is the usage state diagram of the utility model embodiment one.
Fig. 3 is the structure diagram of the new embodiment two of this practicality.
Fig. 4 is the side view of the new embodiment two of this practicality.
1- head rods；The second connecting rods of 2-；3- bull sticks；4- forward screw threads；5- reverse threads；The first internal threads of 6-；
The second internal threads of 7-；The first external screw threads of 8-；The second external screw threads of 9-；10- anti-skid chequers；11- through-holes；12- casings；The first screw rods of 13-；
The second screw rods of 14-；15- Step Shafts；The first threaded holes of 16-；The second threaded holes of 17-；The first knobs of 18-；The second knobs of 19-；20-
First bridge beam body；The second bridge beam bodies of 21-.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected range.
Embodiment 1
As shown in Figs. 1-2, a kind of framework type large span combined prestress highway bridge attachment device of the utility model, packet
Head rod 1, the second connecting rod 2, bull stick 3 are included, the both ends of the bull stick 3 are respectively arranged with forward screw thread 4, reverse thread 5,
Described 1 one end of head rod be provided with 4 matched first internal thread 6 of forward screw thread, and set with the bull stick 3
The threaded one end for having the forward screw thread 4 connects, and 1 other end of head rod is provided with the first external screw thread 8, and described second
2 one end of connecting rod be provided with 5 matched second internal thread 7 of reverse thread, and be provided with the bull stick 3 described anti-
It is connected to the threaded one end of screw thread 5,1 other end of head rod is provided with the second external screw thread 9.
Operation principle：The head rod 1 is provided with one end of the first external screw thread 8 and 20 screw thread of the first bridge beam body connects
It connects, one end that second connecting rod 2 is provided with the second external screw thread 9 is threadedly coupled with the second bridge beam body 21, just completes beam body
Between connection, when stress is excessive between the first bridge beam body 20 and the second bridge beam body 21, when needing to adjust, only need it is positive or
Person rotates backward the bull stick 3, can be achieved with the flexible of whole device, and the length of regulating device realizes the control to connecting stress
System.
For the ease of adjusting manually, preferred technical solution is to be provided with anti-skid chequer 10 on the 3 intermediate outer wall of bull stick,
Smaller for connection stress, user holds residence and states the rotation bull stick 3 of anti-skid chequer 10, just the length of energy regulating device, very just
Just.
For the ease of instrument is used to be adjusted, preferred technical solution is to be provided with through-hole 11 among the bull stick 3,
When connect stress it is larger when, when can not be by adjusting manually, it is possible to be inserted into iron in the through-hole 11 to be adjusted.
In order to which tap wrench is used to be adjusted, preferred technical solution is, the shape of the through-hole 11 is polygon, energy side
Just the through-hole 11 is inserted into be adjusted.
Embodiment 2
As shown in Figure 3-4, after the length for regulating device in order to prevent, because unexpected factors lead to bar rotation, preferably
Technical solution is that a kind of framework type large span combined prestress highway bridge attachment device of the utility model further includes fixation
Device, the fixing device include casing 12, the first screw rod 13, the second screw rod 14, Step Shaft are provided among the bull stick 3
15, the diameter of the Step Shaft 15 is more than the diameter of the head rod 1, and described sleeve pipe 12 is sleeved on the Step Shaft 15,
The inner wall of one end of described sleeve pipe 12 is fixedly connected with the outer wall of the Step Shaft 15, and the other end of described sleeve pipe 12 extends to institute
Head rod 1 is stated, there is the gap of pre-determined distance, institute between the inner wall of described sleeve pipe 12 and the outer wall of the head rod 1
It states casing 12 and the first threaded hole 16,12 tube wall of described sleeve pipe is provided through on one end tube wall of the head rod 1
On second threaded hole 17, first threaded hole are provided with about the axisymmetrical of described sleeve pipe 12 to first threaded hole 16
The first screw rod 13 is provided in 16, the second screw rod 14 is provided in second threaded hole 17.After the length for regulating device,
The first screw rod 13 and the second screw rod 14 are rotated so that fixed between casing 12 and head rod 1, due to casing 12 and bull stick it
Between be also be fixedly connected, so as to the fixation being achieved that between head rod 1 and bull stick 3, bull stick 3 would not be rotated arbitrarily,
So that attachment device can keep stability after regulating length.
For the ease of tightening fixing device manually, preferred technical solution is that first screw rod 13 is far from described first
One end of connecting rod 1 is provided with the first knob 18, and the one end of second screw rod 14 far from the head rod 1 is provided with
Two knobs 19 facilitate personnel to rotate first screw rod 13 and second screw rod 14 to the attachment device after adjusting with hand
It is fixed.
Claims (6)
1. a kind of framework type large span combined prestress highway bridge attachment device, it is characterised in that：Including head rod
(1), the second connecting rod (2), bull stick (3), the both ends of the bull stick (3) are respectively arranged with forward screw thread (4), reverse thread (5),
Described head rod (1) one end is provided with the first internal thread (6) matched with the forward screw thread (4), and with described turn
Bar (3) is provided with the threaded one end connection of the forward screw thread (4), and head rod (1) other end is provided with outside first
Screw thread (8), described second connecting rod (2) one end are provided with the second internal thread (7) matched with the reverse thread (5), and
The threaded one end that the reverse thread (5) is provided with the bull stick (3) is connect, head rod (1) other end setting
There is the second external screw thread (9).
2. a kind of attachment device according to claim 1, it is characterised in that：It is provided on the intermediate outer wall of the bull stick (3)
Anti-skid chequer (10).
3. a kind of attachment device according to claim 1, it is characterised in that：Through-hole is provided among the bull stick (3)
(11)。
4. a kind of attachment device according to claim 3, it is characterised in that：The shape of the through-hole (11) is polygon.
5. a kind of attachment device according to claim 1, it is characterised in that：Further include fixing device, the fixing device
Including casing (12), the first screw rod (13), the second screw rod (14), it is provided with Step Shaft (15) among the bull stick (3), described
The diameter of rank axis (15) is more than the diameter of the head rod (1), and described sleeve pipe (12) is sleeved on the Step Shaft (15), institute
The inner wall for stating one end of casing (12) is fixedly connected with the outer wall of the Step Shaft (15), the other end extension of described sleeve pipe (12)
To the head rod (1), there is pre-determined distance between the inner wall of described sleeve pipe (12) and the outer wall of the head rod (1)
Gap, described sleeve pipe (12) close to the head rod (1) one end tube wall on be provided through the first threaded hole (16),
The second spiral shell is provided with about the axisymmetrical of described sleeve pipe (12) to first threaded hole (16) on described sleeve pipe (12) tube wall
Pit (17) is provided with the first screw rod (13) in first threaded hole (16), and the is provided in second threaded hole (17)
Two screw rods (14).
6. a kind of attachment device according to claim 5, it is characterised in that：First screw rod (13) is far from described the
One end of one connecting rod (1) is provided with the first knob (18), second screw rod (14) far from the head rod (1) one
End is provided with the second knob (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721607928.1U CN207512581U (en) | 2017-11-27 | 2017-11-27 | A kind of framework type large span combined prestress highway bridge attachment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721607928.1U CN207512581U (en) | 2017-11-27 | 2017-11-27 | A kind of framework type large span combined prestress highway bridge attachment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207512581U true CN207512581U (en) | 2018-06-19 |
Family
ID=62541468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721607928.1U Expired - Fee Related CN207512581U (en) | 2017-11-27 | 2017-11-27 | A kind of framework type large span combined prestress highway bridge attachment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207512581U (en) |
-
2017
- 2017-11-27 CN CN201721607928.1U patent/CN207512581U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180619 Termination date: 20211127 |