Prefabricated bridge pier positioning device for roads and bridges
By employing an array distribution of lower and upper sleeves and a positioning mechanism in the pier positioning device, the problem of positioning deviation in prefabricated piers was solved, achieving efficient and stable pier connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MIANYANG CHUANJIAO HIGHWAY PLANNING SURVEY & DESIGN CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-05-26
AI Technical Summary
Existing prefabricated bridge pier positioning devices are prone to deviations during assembly, affecting the positioning effect of the bridge piers.
The system employs an array of multiple lower and upper sleeves, combined with a positioning mechanism, including connecting and positioning components. Through structures such as extended convex plates, grooves, brackets, reinforcing ribs, and threaded columns, it achieves precise alignment and stable connection.
This improved the efficiency and stability of bridge pier assembly, reduced assembly deviations, and ensured the positioning accuracy and construction quality of the bridge piers.
Smart Images

Figure CN224281040U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge construction technology, and in particular to a prefabricated bridge pier positioning device for road bridges. Background Technology
[0002] With the rapid development of China's economic construction and the continuous improvement of engineering technology, China's bridge construction technology has entered the world's advanced ranks, and many world-class cross-sea and cross-river bridge projects have been completed and put into use. These super-large-scale bridges are characterized by large project scale, tight construction time, and high requirements for rapid construction. In addition, the complex aquatic environment and sensitive land conditions limit the large-scale on-site construction of the projects, making construction quality control difficult. New construction technologies are needed to support the implementation of the projects.
[0003] A search of existing Chinese patent technology reveals that the "rapid assembly and positioning component for double-column piers in prefabricated bridges" (publication number CN218373339U) ensures precise alignment during assembly by using several auxiliary devices set up during the assembly of pier columns and pier caps, thus improving construction efficiency. However, this device may cause deviations in assembly, thereby affecting the positioning effect of the piers. Utility Model Content
[0004] Based on this, it is necessary to address the issue that assembly deviations during the assembly of this device may occur, thereby affecting the positioning effect of the bridge pier. The device provides a prefabricated bridge pier positioning device for roads and bridges, comprising: multiple lower sleeves and multiple upper sleeves, the lower sleeves being arranged in an array and combined to form a cylindrical shape; the upper sleeves matching adjacent lower sleeves and located at the upper ends of adjacent lower sleeves; a positioning mechanism installed between the lower sleeves and adjacent upper sleeves, extending to the outer side of the adjacent lower sleeves, and the surface of the positioning mechanism extending into the interior of the lower sleeves; wherein the positioning mechanism includes a connecting component installed between the lower and upper sleeves, the upper end of the connecting component being provided with the positioning component, the positioning component being installed on the surface of the upper sleeve, the surface of the positioning component extending into the inner side of the upper sleeve, and connecting frames fixedly connected to the ends of both the lower and upper sleeves.
[0005] In one embodiment, the connecting assembly includes an extension protrusion fixedly connected to the lower end of the upper sleeve and a groove formed at the upper end of the lower sleeve. The extension protrusion matches the groove. An upper bracket is fixedly connected to the surface of the extension protrusion away from the adjacent upper sleeve. A lower bracket is fixedly connected to the surface of the lower sleeve near the groove. The surface of the upper bracket matches the inner wall of the lower bracket.
[0006] In one embodiment, the positioning component includes an abutment ring mounted on the upper sleeve away from the surface of the connecting component. A threaded post is fixedly connected to one side of the abutment ring, and an operating rod is fixedly connected to the other side of the abutment ring. A circular hole is formed on the surface of the upper sleeve, and a threaded sleeve is fixedly connected to the inner wall of the circular hole.
[0007] In one embodiment, two reinforcing ribs are fixedly connected to the surface of the extending protrusion, and the reinforcing ribs are fixedly connected to the inner bottom wall of the upper bracket. The extending protrusion and the upper bracket are inserted into the groove and the lower bracket, which improves assembly efficiency and makes the connection more stable.
[0008] In one embodiment, two lower support plates are fixedly connected to the lower end of the lower bracket, and the lower support plates are fixedly connected to the surface of the lower sleeve. The reinforcing ribs and lower support plates improve the load-bearing capacity of the support assembly.
[0009] In one embodiment, the lower bracket is internally fitted with a plurality of connecting bolts, which are evenly distributed in an arc shape along the surface of the extending protrusion. The connecting bolts ensure a tight connection between the upper and lower brackets, forming a unified whole.
[0010] In one embodiment, the threaded post is threadedly connected to the surface of the adjacent threaded sleeve, and one end of the threaded sleeve abuts against the surface of the adjacent abutting ring.
[0011] In one embodiment, a locating pin is fixedly connected to the end of the threaded post away from the abutment ring, and the locating pin extends through to the inside of the upper sleeve. A rotary knob rotates the abutment ring, thereby adjusting the depth of the locating pin extending into the upper sleeve under the action of the abutment ring and the threaded post engaging the threaded sleeve.
[0012] Beneficial effects
[0013] The aforementioned prefabricated bridge pier positioning device improves assembly efficiency and makes the connection more stable by inserting the extended convex plate and the upper bracket into the groove and the lower bracket. Multiple connecting bolts make the upper bracket and the lower bracket tightly connected to form a connected whole. Furthermore, the reinforcing ribs and the lower support plate improve the load-bearing effect of the assembly, reduce the deviation in the assembly process, and ensure the work efficiency of the bridge pier positioning assembly.
[0014] The device, through its positioning component, allows the rotating knob to drive the contact ring to rotate. The contact ring, in turn, drives the threaded post to engage with the threaded sleeve, thereby adjusting the depth of the positioning pin extending into the upper sleeve. The contact between the contact ring and the threaded sleeve also provides a limiting effect, improving the efficiency of assembly and connection positioning. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the positioning mechanism structure of this utility model;
[0018] Figure 3 This is an exploded view of the connecting component of this utility model;
[0019] Figure 4 This is a schematic diagram of the positioning component structure of this utility model;
[0020] Figure 5 This is an exploded view of the positioning component of this utility model.
[0021] Figure label:
[0022] 1. Lower sleeve; 2. Upper sleeve; 3. Positioning mechanism; 31. Connecting assembly; 311. Extending convex plate; 312. Groove; 313. Lower bracket; 314. Lower support plate; 315. Reinforcing rib; 316. Connecting bolt; 317. Upper bracket; 32. Positioning assembly; 321. Abutting ring; 322. Threaded sleeve; 323. Threaded post; 324. Operating lever; 325. Positioning pin; 326. Round hole; 33. Connecting bracket. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0024] The following is combined Figures 1-5 This utility model describes a prefabricated bridge pier positioning device for roads and bridges.
[0025] In one embodiment, a prefabricated bridge pier positioning device for road bridges includes: a plurality of lower sleeves 1 and a plurality of upper sleeves 2, wherein the plurality of lower sleeves 1 are arranged in an array and combined to form a cylindrical shape, and the upper sleeves 2 are matched with adjacent lower sleeves 1 and are located at the upper end of the adjacent lower sleeves 1; and a positioning mechanism 3, which is installed between the lower sleeves 1 and the adjacent upper sleeves 2, extends to the outside of the adjacent lower sleeves 1, and the surface of the positioning mechanism 3 extends into the interior of the lower sleeves 1.
[0026] The positioning mechanism 3 includes a connecting component 31 installed between the lower sleeve 1 and the upper sleeve 2. A positioning component 32 is provided at the upper end of the connecting component 31. The positioning component 32 is installed on the surface of the upper sleeve 2 and the surface of the positioning component 32 extends to the inner side of the upper sleeve 2. A connecting frame 33 is fixedly connected to the ends of both the lower sleeve 1 and the upper sleeve 2.
[0027] like Figure 1 , Figure 2 and Figure 3 As shown, the connecting assembly 31 includes an extension protrusion 311 fixedly connected to the lower end of the upper sleeve 2 and a groove 312 formed at the upper end of the lower sleeve 1. The extension protrusion 311 matches the groove 312. An upper bracket 317 is fixedly connected to the surface of the extension protrusion 311 away from the adjacent upper sleeve 2. A lower bracket 313 is fixedly connected to the surface of the lower sleeve 1 near the groove 312. The surface of the upper bracket 317 matches the inner wall of the lower bracket 313. Two reinforcing ribs 315 are fixedly connected to the surface of the extension protrusion 311. The reinforcing ribs 315 are fixedly connected to the inner bottom wall of the upper bracket 317. Two lower support plates 314 are fixedly connected to the lower end of the lower bracket 313. The lower support plates 314 are fixedly connected to the surface of the lower sleeve 1. Multiple connecting bolts 316 are installed inside the lower bracket 313. The multiple connecting bolts 316 are evenly distributed in an arc shape along the surface of the extension protrusion 311.
[0028] In this embodiment, the device can make the connection between the lower sleeve 1 and the upper sleeve 2 more stable by setting the connecting component 31. The extended protrusion 311 and the groove 312 form a matching effect, so that the extended protrusion 311 and the upper bracket 317 are inserted into the groove 312 and the lower bracket 313, which improves the assembly efficiency and makes the connection more stable. This setting uses multiple connecting bolts 316 to tightly connect the upper bracket 317 and the lower bracket 313 to form a connected whole. Furthermore, the reinforcing rib 315 and the lower support plate 314 improve the load-bearing effect of the assembly and ensure the efficiency of the assembly connection.
[0029] like Figure 2 , Figure 4 and Figure 5As shown, the positioning component 32 includes an abutment ring 321 mounted on the surface of the upper sleeve 2 away from the connecting component 31. A threaded post 323 is fixedly connected to one side of the abutment ring 321, and an operating rod 324 is fixedly connected to the other side of the abutment ring 321. A circular hole 326 is opened on the surface of the upper sleeve 2. A threaded sleeve 322 is fixedly connected to the inner wall of the circular hole 326. The threaded post 323 is threadedly connected to the surface of the adjacent threaded sleeve 322. One end of the threaded sleeve 322 abuts against the surface of the adjacent abutment ring 321. A positioning pin 325 is fixedly connected to the end of the threaded post 323 away from the abutment ring 321. The positioning pin 325 penetrates to the inner side of the upper sleeve 2.
[0030] In this embodiment, the device, during use, uses a threaded sleeve 322 fixedly connected to the inner wall of the circular hole 326 to perform positioning operations with a threaded post 323. The knob operating rod 324 drives the abutment ring 321 to rotate, thereby adjusting the depth of the positioning pin 325 extending into the upper sleeve 2 under the action of the abutment ring 321 driving the threaded post 323 to cooperate with the threaded sleeve 322. Furthermore, the abutment between the abutment ring 321 and the threaded sleeve 322 forms a limiting effect.
[0031] Working principle: The lower sleeve 1 and the upper sleeve 2 are matched with the groove 312 through the extension convex plate 311. The extension convex plate 311 and the upper bracket 317 are inserted into the groove 312 and the lower bracket 313, which improves the assembly efficiency and makes the connection more stable. Multiple connecting bolts 316 are tightly connected to the upper bracket 317 and the lower bracket 313 to form a connected whole. The reinforcing ribs 315 and the lower support plate 314 improve the load-bearing effect of the assembly. During use, the threaded sleeve 322 is fixedly connected to the inner wall of the round hole 326 and the threaded column 323 for positioning operation. The knob operating rod 324 drives the abutment ring 321 to rotate. Under the action of the abutment ring 321 driving the threaded column 323 and the threaded sleeve 322, the depth of the positioning pin 325 extending into the upper sleeve 2 is adjusted. The abutment of the abutment ring 321 and the threaded sleeve 322 forms a limit, ensuring the efficiency of the assembly connection.
[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A prefabricated bridge pier positioning device for roads and bridges, characterized in that, include: Multiple lower sleeves (1) and multiple upper sleeves (2), the multiple lower sleeves (1) are arranged in an array, the multiple lower sleeves (1) are combined to form a cylindrical shape, the upper sleeves (2) are matched with the adjacent lower sleeves (1), and the upper sleeves (2) are located at the upper end of the adjacent lower sleeves (1); Positioning mechanism (3), the positioning mechanism (3) is installed between the lower sleeve (1) and the adjacent upper sleeve (2), the positioning mechanism (3) extends to the outside of the adjacent lower sleeve (1), and the surface of the positioning mechanism (3) extends into the interior of the lower sleeve (1); The positioning mechanism (3) includes a connecting component (31) installed between the lower sleeve (1) and the upper sleeve (2). The upper end of the connecting component (31) is provided with a positioning component (32). The positioning component (32) is installed on the surface of the upper sleeve (2). The surface of the positioning component (32) extends to the inner side of the upper sleeve (2). The ends of the lower sleeve (1) and the upper sleeve (2) are fixedly connected with a connecting frame (33).
2. The prefabricated bridge pier positioning device according to claim 1, characterized in that, The connecting assembly (31) includes an extension protrusion (311) fixedly connected to the lower end of the upper sleeve (2) and a groove (312) opened at the upper end of the lower sleeve (1). The extension protrusion (311) matches the groove (312). An upper bracket (317) is fixedly connected to the surface of the extension protrusion (311) away from the adjacent upper sleeve (2). A lower bracket (313) is fixedly connected to the surface of the lower sleeve (1) near the groove (312). The surface of the upper bracket (317) matches the inner wall of the lower bracket (313).
3. The prefabricated bridge pier positioning device according to claim 1, characterized in that, The positioning component (32) includes an abutment ring (321) mounted on the surface of the upper sleeve (2) away from the connecting component (31). A threaded post (323) is fixedly connected to one side of the abutment ring (321), and an operating rod (324) is fixedly connected to the other side of the abutment ring (321). A circular hole (326) is opened on the surface of the upper sleeve (2), and a threaded sleeve (322) is fixedly connected to the inner wall of the circular hole (326).
4. The prefabricated bridge pier positioning device according to claim 2, characterized in that, The surface of the extended protrusion (311) is fixedly connected to two reinforcing ribs (315), which are fixedly connected to the inner bottom wall of the upper bracket (317).
5. The prefabricated bridge pier positioning device according to claim 2, characterized in that, The lower end of the lower bracket (313) is fixedly connected to two lower support plates (314), which are fixedly connected to the surface of the lower sleeve (1).
6. The prefabricated bridge pier positioning device according to claim 2, characterized in that, The lower bracket (313) is equipped with a plurality of connecting bolts (316), which are evenly distributed in an arc shape along the surface of the extension convex plate (311).
7. The prefabricated bridge pier positioning device according to claim 3, characterized in that, The threaded post (323) is threadedly connected to the surface of the adjacent threaded sleeve (322), and one end of the threaded sleeve (322) abuts against the surface of the adjacent abutting ring (321).
8. The prefabricated bridge pier positioning device according to claim 3, characterized in that, The threaded post (323) is fixedly connected to a positioning pin (325) at the end away from the abutment ring (321), and the positioning pin (325) extends through to the inside of the upper sleeve (2).