CN219604142U

CN219604142U - Anchoring device of bridge support

Info

Publication number: CN219604142U
Application number: CN202320808799.1U
Authority: CN
Inventors: 李志国; 李建斌; 任正联
Original assignee: Ccnc Engineering Design Consultation Co ltd
Current assignee: Ccnc Engineering Design Consultation Co ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-08-29
Anticipated expiration: 2033-04-12

Abstract

The utility model discloses an anchoring device of a bridge support, and relates to the technical field of bridge supports; the utility model comprises a bridge body and a pier body, wherein a connecting seat is arranged between the bridge body and the pier body; the anchoring parts are respectively arranged on the upper side and the lower side of the connecting seat and are respectively connected with the bridge body and the pier body, each anchoring part comprises an internal thread sleeve arranged in the bridge body or the pier body, a first screw rod is inserted into the internal thread sleeve in a threaded manner, a thread groove is coaxially formed in one end of each first screw rod, and a second screw rod movably penetrates through the connecting seat; according to the utility model, the first screw rod and the second screw rod are connected into a complete anchoring screw rod through the matching of the third screw rod and the thread groove, and the whole anchoring screw rod is in threaded matching with the internal thread sleeve, so that the threaded engagement length of the anchoring screw rod and the internal thread sleeve cannot be shortened due to the plugging of the backing plate after the plugging backing plate of the connecting seat is improved, and the anchoring performance of the connecting seat and the bridge body and the pier body respectively is ensured.

Description

Anchoring device of bridge support

Technical Field

The utility model relates to the technical field of bridge support anchoring equipment, in particular to an anchoring device of a bridge support.

Background

The bridge support is an important connecting part of the upper structure and the lower structure of the bridge, reliably transmits the counterforce and deformation of the upper structure of the bridge to the lower structure of the bridge, and plays a great role in bridge engineering.

In the service process of the bridge, if uneven settlement occurs at each bridge supporting position, the heights of each part of the beam body can be changed, so that the stress form of the bridge is changed, and the structural stability is affected. The main current method at present is to raise the anchoring of bridge support, and the pad is the simplest method for raising the pad, the basic idea is to jack up the bridge to unload the support, then screw off the bolt, then continue to jack up the bridge to a certain position, add the plug pad between the upper support plate and the bottom plate (pre-buried steel plate) of the bridge, then screw down the bolt, and there are some problems in this process: in the process of heightening the support, the existing anchor bolts are single and integral, and the screw engagement length of the anchor bolts and the sleeve is shortened along with the insertion of the backing plate, so that the anchoring performance of the support and the beam body can be influenced.

Disclosure of Invention

The utility model aims at: in order to solve the problems in the background, the utility model provides an anchoring device of a bridge bearing.

The utility model adopts the following technical scheme for realizing the purposes:

an anchor for a bridge bearing comprising:

the bridge body and the pier body are provided with a connecting seat therebetween;

the anchor assembly comprises a bridge body and a pier body, wherein the bridge body is connected with the pier body, the anchor assembly comprises an inner threaded sleeve arranged in the bridge body or the pier body, a first screw rod is inserted into the inner threaded sleeve, a thread groove is coaxially formed in one end of the first screw rod, a second screw rod is movably penetrated through the connecting seat, a thread at the end of the second screw rod is inserted into the inner threaded sleeve, a third screw rod is coaxially arranged at the end of the second screw rod, and the third screw rod is in threaded fit with the thread groove.

Further, an extension rod is constructed on the third screw rod, and the extension rod rotates to penetrate through the second screw rod.

Further, a spring washer is arranged between the nut end of the second screw rod and the connecting seat.

Further, a limiting groove is formed in the second screw rod, a limiting block is constructed on the extension rod, and the limiting block is rotatably inserted into the limiting groove.

Further, a hexagonal groove communicated with the thread groove is formed in one end, close to the second screw rod, of the first screw rod.

Further, the threads of the thread groove and the internal thread sleeve are oppositely threaded.

Further, the connection mode of the internal thread sleeve and the bridge body or the pier body is pre-buried.

Further, the array of external surfaces of the internally threaded sleeve is configured with a plurality of collars.

The beneficial effects of the utility model are as follows: according to the utility model, the first screw rod and the second screw rod are connected into a complete anchoring screw rod through the matching of the third screw rod and the thread groove, and the whole anchoring screw rod is in threaded matching with the internal thread sleeve, so that the threaded engagement length of the anchoring screw rod and the internal thread sleeve cannot be shortened due to the plugging of the backing plate after the plugging backing plate of the connecting seat is improved, and the anchoring performance of the connecting seat with the bridge body and the pier body respectively is ensured.

Drawings

FIG. 1 is a perspective view of the structure of the present utility model;

FIG. 2 is a perspective cross-sectional view of the present utility model;

FIG. 3 is an exploded view of a portion of the present utility model in perspective;

FIG. 4 is an enlarged view of the utility model at A in FIG. 2;

reference numerals: 1. a bridge body; 2. a pier body; 3. a connecting seat; 4. an anchor; 5. an extension rod; 6. a spring washer; 7. a limit groove; 8. a limiting block; 9. a hexagonal groove; 10. a collar; 401. an internally threaded sleeve; 402. a first screw rod; 403. a thread groove; 404. a second screw rod; 405. and a third screw rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

As shown in fig. 1 to 4, an anchoring device for a bridge bearing according to an embodiment of the present utility model includes:

the bridge body 1 and the pier body 2 are provided with a connecting seat 3 therebetween;

the anchoring pieces 4 are respectively arranged on the upper side and the lower side of the connecting seat 3 and are respectively connected with the bridge body 1 and the pier body 2, and preferably, the number of the anchoring pieces 4 on the upper side and the lower side of the connecting seat 3 is four and is rectangular;

the anchor 4 comprises an internal thread sleeve 401 arranged in the bridge body 1 or the pier body 2, a first screw rod 402 is inserted into the internal thread sleeve 401, one end of the first screw rod 402 is coaxially provided with a thread groove 403, a second screw rod 404 movably penetrates through the connecting seat 3, the end of the second screw rod 404 is inserted into the internal thread sleeve 401, a third screw rod 405 is coaxially arranged at the end of the second screw rod 404, the third screw rod 405 is in threaded fit with the thread groove 403, so that the first screw rod 402 and the second screw rod 404 are connected into a complete anchoring screw rod, the connecting seat 3 and the bridge body 1 are fixed through the threaded fit of the anchoring screw rod and the internal thread sleeve 401, or the connecting seat 3 and the pier body 2 are fixed, when the height of the bridge body 1 is required to be adjusted, the second screw rod 404 is loosened, the third screw rod 405 is withdrawn from the thread groove 403, the second screw rod 404 is withdrawn from the internal thread sleeve 401, the first screw rod 402 is still in the internal thread sleeve 401, the connecting seat 3 is still reserved on the side of the internal thread sleeve 403 or the side of the second screw rod 405 is additionally arranged at the side of the inner thread sleeve 403, the second screw rod is in the side of the inner thread sleeve 404 is not matched with the second screw rod 3, the second screw rod 3 is in the threaded sleeve 404, the whole length is increased, the whole length is ensured, and the whole length of the whole body is ensured to be matched with the second screw rod is different from the second screw rod 3, and the inner screw rod is screwed with the inner screw rod 3, and the anchor body is fixed, and the anchor has a screw rod 3, and has a differential sedimentation structure, when the differential setting, and has a differential setting.

As shown in fig. 3 and 4, in some embodiments, the third screw rod 405 is configured with an extension rod 5, the extension rod 5 rotates to penetrate the second screw rod 404, and due to the difference in sedimentation of the bridge body 1, the heights of the backing plates are different, and by configuring the extension rod 5 on the third screw rod 405, and the extension rod 5 rotates to penetrate the second screw rod 404, when the third screw rod 405 is twisted to be in threaded engagement with the internal thread sleeve 401, the extension rod 5 can also be twisted, and the rotation time of the extension rod and the extension rod need not be synchronous, and when the threaded engagement of the third screw rod 405 and the internal thread sleeve 401 is ensured, the threaded engagement of the third screw rod 405 and the thread groove 403 can also be ensured.

As shown in fig. 4, in some embodiments, a spring washer 6 is disposed between the nut end of the second screw rod 404 and the connection seat 3, when the second screw rod 404 is twisted, the nut of the second screw rod 404 may cooperate with the connection seat 3 to press the spring washer 6, and a certain anti-collision force is applied to the nut by using the elastic force of the spring washer 6, so as to avoid the phenomenon that the second screw rod 404 rotates loose due to the vibration of the bridge body 1, and improve the anchoring performance of the connection seat 3 with the bridge body 1 and the pier body 2 respectively.

As shown in fig. 3 and fig. 4, in some embodiments, the second screw 404 is internally provided with a limiting groove 7, the extension rod 5 is provided with a limiting block 8, the limiting block 8 is rotatably inserted in the limiting groove 7, and the limiting block 8 and the limiting groove 7 are matched to play a role in limiting the extension rod 5, so that axial movement displacement of the extension rod 5 is avoided, the third screw 405 is caused to rotate and loosen, and as long as the second screw 404 does not rotate and loosen, the third screw 405 does not rotate and loosen, and the anchoring performance of the connecting seat 3 and the bridge body 1 and the pier body 2 is improved.

As shown in fig. 3 and fig. 4, in some embodiments, a hexagonal groove 9 that is communicated with the thread groove 403 is formed at one end of the first screw rod 402 near the second screw rod 404, and through the arrangement of the hexagonal groove 9, the first screw rod 402 can be individually placed into the internal thread sleeve 401 by means of a tool, so that the convenience of installation is improved, and meanwhile, due to the arrangement of the hexagonal groove 9, a certain space is provided at the port of the first screw rod 402, so that the thread groove 403 is located, and when the second screw rod 404 is twisted, the alignment of the third screw rod 405 and the thread groove 403 is facilitated, so that the convenience of installation is improved.

As shown in fig. 4, in some embodiments, the screw threads of the screw groove 403 and the internal screw sleeve 401 are opposite in rotation direction, and by arranging the screw threads of the screw groove 403 and the internal screw sleeve 401 opposite in rotation direction, when the second screw rod 404 is withdrawn from the internal screw sleeve 401, the third screw rod 405 is withdrawn from the screw groove 403, so that the first screw rod 402 is not loosened along the screw threads in the internal screw sleeve 401 due to the rotation force.

As shown in fig. 4, in some embodiments, the connection manner of the internal thread sleeve 401 and the bridge body 1 or the pier body 2 is pre-buried, and the pre-buried manner is adopted to improve the connection strength of the internal thread sleeve 401 and the bridge body 1 or the pier body 2, and further improve the anchoring performance of the connecting seat 3 and the bridge body 1 and the pier body 2 respectively.

As shown in fig. 3 and fig. 4, in some embodiments, the outer surface array of the internal thread sleeve 401 is configured with a plurality of collars 10, and by setting the collars 10, the connection strength between the internal thread sleeve 401 and the bridge body 1 or the pier body 2 is higher and better when the internal thread sleeve is pre-buried, so as to further improve the anchoring performance of the connecting seat 3 and the bridge body 1 and the pier body 2 respectively.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The anchoring device of bridge beam supports, its characterized in that includes:

the bridge body (1) and the pier body (2) are provided with a connecting seat (3) between the bridge body and the pier body;

the anchor assembly comprises a plurality of anchors (4), wherein the anchors are respectively arranged on the upper side and the lower side of a connecting seat (3), the anchors are respectively connected with a bridge body (1) and a pier body (2), each anchor (4) comprises an inner threaded sleeve (401) arranged in the bridge body (1) or the pier body (2), a first screw rod (402) is inserted into each inner threaded sleeve (401), a threaded groove (403) is coaxially formed in one end of each first screw rod (402), a second screw rod (404) is movably penetrated through the connecting seat (3), the end threads of each second screw rod (404) are inserted into the corresponding inner threaded sleeve (401), and a third screw rod (405) is coaxially arranged at the end of each second screw rod (404) and is in threaded fit with each threaded groove (403).

2. The anchoring device of a bridge bearing according to claim 1, characterized in that the third screw (405) is provided with an extension rod (5), the extension rod (5) rotating through the second screw (404).

3. The anchoring device of a bridge bearing according to claim 1, characterized in that a spring washer (6) is arranged between the nut end of the second screw rod (404) and the connection seat (3).

4. The anchoring device of the bridge support according to claim 2, wherein a limiting groove (7) is formed in the second screw rod (404), a limiting block (8) is constructed on the extension rod (5), and the limiting block (8) is rotatably inserted into the limiting groove (7).

5. The anchoring device of the bridge beam as claimed in claim 1, wherein a hexagonal groove (9) communicating with the thread groove (403) is provided at one end of the first screw (402) close to the second screw (404).

6. An anchoring device for a bridge abutment according to claim 1, wherein the threads of the threaded groove (403) and the internally threaded sleeve (401) are oppositely threaded.

7. The anchoring device of the bridge support according to claim 1, wherein the connection mode of the internal thread sleeve (401) and the bridge body (1) or the pier body (2) is pre-buried.

8. An anchoring device for bridge bearings according to claim 1, characterized in that the outer surface array of the internally threaded sleeve (401) is configured with several collars (10).