Height-adjustable emergency bridge pier

Abstract

According to the emergency pier with the adjustable height, the length of the pier body part is adjusted by changing the number of the frames on the pier body, and different pier height requirements are met; and on the basis, the height of the pier body lower frame can be further finely adjusted through a height adjusting mechanism at the pier bottom, and the field adaptability of the emergency highway pier is improved. The emergency bridge pier comprises two or more bridge pier stand column units, the two or more bridge pier stand column units are arranged at intervals in the transverse direction, and the bridge pier stand column units are connected through connecting parts; the pier stand column unit comprises a pier body part, a top beam part on the upper portion and a pier bottom part on the lower portion. The pier body part comprises a pier body lower frame and a plurality of pier body upper frames which are arranged above the pier body lower frame and are sequentially connected in the vertical direction; the pier bottom comprises a bottom plate, and the bottom plate is connected with the pier body lower frame through a height adjusting mechanism.

Description

Technical Field

[0001] This utility model relates to the field of emergency bridges, specifically to a bridge pier with adjustable height. Background Technology

[0002] Prefabricated steel highway bridges play a vital role in emergency rescue, but their spans are limited. In practical applications, temporary piers are typically added to increase the bridge span. Emergency rescue scenarios involve complex foundation conditions, requiring piers to adapt to height changes, and necessitate short emergency rescue times.

[0003] Existing emergency highway bridge piers are typically manufactured in factories, with components then assembled on-site into a single structure. Current technical solutions for erecting emergency highway bridge piers involve first pre-treating the foundation with concrete to ensure the pier's base is level, arranging embedded parts, and then using connecting components such as Bailey bridge panels connected by pins and bolts to assemble the pier into a single structure. This single pier structure is assembled using H-beam steel columns and bolts, or it can be constructed by welding steel pipes on-site.

[0004] However, existing solutions have many problems during the erection process. For example, emergency highway piers have a wide variety and large number of components, and the bolt installation requires precise component positioning, which increases the installation time. If steel pipes are welded on-site, the welding operation is affected by weather conditions, making it even more difficult to guarantee the completion time of the emergency pier erection. In addition, existing Bailey bridge panels and other connecting components do not have adjustable height functions, which cannot meet the erection requirements of different heights. Even when the flatness requirements of the emergency highway pier foundation are high, the existing pier components do not have corresponding mechanisms to fine-tune the verticality and horizontality of the pier, which cannot meet the erection requirements of emergency highway piers with high flatness requirements. Utility Model Content

[0005] This utility model provides an adjustable height emergency bridge pier. The length of the pier body can be adjusted by changing the number of frames on the pier body to adapt to different pier height requirements. Furthermore, the height of the lower frame of the pier body can be finely adjusted through the height adjustment mechanism at the bottom of the pier, thereby improving the site adaptability of the emergency highway bridge pier.

[0006] The emergency bridge pier includes: two or more bridge pier column units, which are arranged at intervals along the lateral direction and are connected to each other by a connecting part;

[0007] The pier column unit includes: the pier body, the top beam above it, and the bottom of the pier below it;

[0008] The pier body includes: a lower pier frame and several upper pier frames that are connected vertically in sequence above the lower pier frame.

[0009] The bottom of the pier includes a base plate, which is connected to the lower frame of the pier body via a height adjustment mechanism.

[0010] As a preferred embodiment of this utility model, the upper frame and lower frame of the pier are both three-dimensional frame structures with rectangular cross-sections; including several vertical columns distributed along the circumference, several horizontal connecting columns that connect adjacent vertical columns at the top and bottom, and several diagonal connecting columns that connect adjacent vertical columns diagonally.

[0011] As a preferred embodiment of this utility model, each vertical column of the pier lower frame is provided with a height adjustment mechanism at its bottom;

[0012] The height adjustment mechanism includes: a sleeve;

[0013] The vertical columns of the pier's lower frame are hollow structures. The upper end of the sleeve is coaxially nested inside the vertical column, and the lower end extends out of the vertical column and supports the base plate. The sleeve can move along the axis of the vertical column, thereby adjusting the length of its lower end extending out of the vertical column, and thus realizing the adjustment of the height of the pier's lower frame relative to the base plate.

[0014] As a preferred embodiment of this utility model, the height adjustment mechanism further includes: a handle, a transmission nut, a transmission screw, and a bearing;

[0015] The transmission screw is coaxially supported inside the vertical column by bearings;

[0016] The upper end of the sleeve is coaxially nested inside the vertical column, the upper part of the sleeve is provided with internal threads, and the lower end extends out of the vertical column;

[0017] One end of the transmission screw is provided with helical teeth for meshing with the transmission nut to form a bevel gear; the other end is provided with external threads that engage with the internal threads on the sleeve.

[0018] One end of the handle extends into the vertical column and is fixed to the transmission nut; the transmission nut is rotated by the handle, which in turn drives the transmission screw to rotate along the fixed axis of the sleeve, so that the sleeve moves vertically inside the vertical column.

[0019] In a preferred embodiment of this utility model, the lower end of the sleeve has a ball head structure;

[0020] The ball head structure mates with the spherical groove of the base plate;

[0021] A locking plate is fixedly installed on the surface of the spherical groove on the base plate to limit the position of the ball head structure.

[0022] As a preferred embodiment of this utility model, a locking mechanism is provided between the frames of vertically adjacent piers.

[0023] The locking mechanism includes: double ear plates, limiting blocks, pins, screws, and nuts; the double ear plates are disposed on the top side wall of the pier frame, and the limiting blocks are disposed on the bottom side wall of the adjacent pier frame corresponding to the double ear plates;

[0024] The limiting block is provided with a limiting groove;

[0025] One end of the screw is pinned to the double lug plate by a pin, and can rotate around the pin joint to enter the limiting groove of the limiting block, and is fastened to the end of the screw by a nut;

[0026] The locking mechanism is also provided between the lower frame of the pier and the upper frame of the pier above it;

[0027] The locking mechanism is also provided between the connecting part and the frame of the pier body connected thereto.

[0028] In a preferred embodiment of this utility model, the connecting part is connected to the uppermost frame of the pier body.

[0029] A support and positioning mechanism is provided at the connection between the connecting part and the frame of the pier.

[0030] The support positioning mechanism includes: a support positioning seat and a positioning pin B. The support positioning seat is disposed on the frame of the pier body and is provided with a positioning pin hole B.

[0031] The positioning pin B is disposed on the transverse connecting rod of the connecting part and cooperates with the positioning pin hole B.

[0032] Beneficial effects

[0033] (1) The adjustable-height emergency bridge pier of this utility model is formed by horizontally spacing one or more bridge pier column units, and the bridge pier column units are connected by connecting parts, which divides the components of the emergency highway bridge pier into units, reducing the number of components and shortening the erection time. In addition, since the pier body frame has several parts, it can solve the problem that the connecting components such as Bailey panels of traditional bridge piers do not have adjustable height function and cannot meet the erection requirements of different heights.

[0034] (2) The adjustable height emergency bridge pier of this utility model is also equipped with a height adjustment mechanism at the bottom, which can finely adjust the height of the emergency bridge pier to meet the erection requirements of bridge pier foundations of different heights in the same area.

[0035] (3) The sleeve bottom of the adjustable height emergency bridge pier of this utility model is provided with a ball head structure. By cooperating with the spherical groove structure on the base plate, the base plate can rotate around the ball head structure at any angle, thereby further improving the adaptability of the emergency highway bridge pier to uneven sites.

[0036] (4) In the adjustable height emergency bridge pier of this utility model, there are locking mechanisms between the upper frames of adjacent piers and between the upper frame of the pier and the lower frame of the pier, which can realize quick locking and unlocking and improve the efficiency of emergency highway bridge pier erection. Attached Figure Description

[0037] Figure 1 This is a front view of the adjustable-height emergency bridge pier of this utility model;

[0038] Figure 2 This is a side view of the adjustable-height emergency bridge pier of this utility model;

[0039] Figure 3 for Figure 1 A magnified view of the area at position I in the middle;

[0040] Figure 4 For along Figure 3 Sectional view of line AA in the middle;

[0041] Figure 5 for Figure 1 A magnified view of a portion of position II;

[0042] Figure 6 for Figure 1 A magnified view of a portion of position III;

[0043] Figure 7 This is a front view of the frame on the adjustable-height emergency bridge pier of this utility model.

[0044] Figure 8 This is a side view of the frame on the pier body of the adjustable-height emergency bridge pier of this utility model;

[0045] Figure 9 This is a front view of the locking mechanism of the adjustable-height emergency bridge pier of this utility model;

[0046] Figure 10 This is a side view of the locking mechanism of the adjustable-height emergency bridge pier of this utility model;

[0047] Figure 11 This is a front view of the limiting block of the adjustable-height emergency bridge pier of this utility model;

[0048] Figure 12 This is a top view of the adjustable height emergency bridge pier limiting block of this utility model;

[0049] Figure 13 This is a front view of the connection part of the adjustable-height emergency bridge pier of this utility model;

[0050] Figure 14 This is a front view of the adjustable-height emergency bridge pier support positioning seat of this utility model;

[0051] Figure 15 This is a top view of the adjustable-height emergency bridge pier support positioning seat of this utility model;

[0052] Among them, 1-top crossbeam, 2-top vertical beam, 3-pier body frame, 4-pier body lower frame, 5-pier bottom, 6-locking mechanism, 7-connecting part, 8-support positioning seat, 9-vertical column, 10-horizontal connecting column, 11-diagonal connecting column, 12-positioning pin A, 13-positioning pin hole A, 14-transmission nut, 15-handle, 16-transmission screw, 17-sleeve, 18-ball head structure, 19-base plate, 20-nut, 21-limiting block, 22-screw, 23-pin, 24-double ear plate, 25-positioning pin B, 26-positioning pin hole B. Detailed Implementation

[0053] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0054] Example 1:

[0055] This embodiment provides an adjustable-height emergency bridge pier, which adjusts the length of the pier body by changing the number of frames on the pier body to adapt to different pier height requirements.

[0056] First, define the length direction of the bridge deck as longitudinal and the width direction as transverse.

[0057] like Figures 1-15 As shown, the emergency pier includes two or more pier column units. Each pier column unit includes a pier body, an upper top beam, and a lower pier base 5. The pier body, top beam, and pier base 5 together form a pier column unit. The two or more pier column units are spaced apart laterally, and adjacent pier column units are connected by a connecting part 7.

[0058] The pier body includes a lower pier frame 4 and multiple upper pier frames 3 connected vertically above the lower pier frame 4. Therefore, the height of the pier column unit increases with the number of upper pier frames 3. This design can solve the problem that existing pier components do not have height adjustable function and meet the erection requirements of piers of different heights.

[0059] In addition, the bottom of the pier 5 includes a base plate 19, which is connected to the lower frame 4 of the pier body through a height adjustment mechanism. The height adjustment mechanism can adjust the height of the lower frame 4 of the pier body relative to the base plate 19, and further fine-tune the height of the pier column unit to meet the erection requirements of piers of different heights in the same area.

[0060] Example 2:

[0061] Based on Example 1, the upper frame 3 of the pier body, the lower frame 4 of the pier body, the connecting part 7, and the top beam are further defined.

[0062] Both the upper frame 3 and the lower frame 4 of the pier are three-dimensional frame structures with rectangular cross-sections. For a complete pier column unit, both the upper frame 3 and the lower frame 4 of the pier include six vertical columns 9 distributed circumferentially, several transverse connecting columns at the top and bottom of the vertical columns 9 to connect adjacent vertical columns 9, and several diagonal connecting columns connecting the diagonals of adjacent vertical columns 9.

[0063] Each vertical column 9 of the pier upper frame 3 has a positioning pin hole A13 at its top and a positioning pin A12 at its bottom that mates with the positioning pin hole A13. The upper and lower adjacent pier upper frames 3 are vertically connected through the engagement of the positioning pin A12 and the positioning pin hole A13. Similarly, the pier upper frame 3 and the pier lower frame 4 are vertically connected in the same way to form a complete pier column unit.

[0064] Furthermore, a locking mechanism 6 is provided between the vertical columns 9 of the adjacent upper and lower pier upper frame 3 for quick locking and unlocking of the adjacent pier upper frame 3.

[0065] As an example, the locking mechanism 6 specifically includes: a double-ear plate 24, a limiting block 21, a pin 23, a screw 22, and a nut 20. The double-ear plate 24 is set on the top side wall of the vertical column 9 of the pier frame 3, and the limiting block 21 is set on the side wall of the bottom of the vertical column 9 of the adjacent pier frame 3 corresponding to the double-ear plate 24. The limiting block 21 is provided with a limiting groove. One end of the screw 22 is pinned to the double-ear plate 24 through the pin 23 and can rotate around the pin connection; thus, the screw 22 can rotate upward around the pin 23 into the limiting groove of the limiting block 21, and the end of the screw 22 is fastened by the nut 20, thereby achieving position locking. Similarly, when the nut 20 is loosened, the screw 22 can rotate downward around the pin 23 and disengage from the limiting block 21, so that the adjacent pier frame 3 can be quickly separated.

[0066] As an example, the connecting part 7 is a horizontally arranged rectangular three-dimensional frame structure, including horizontal connecting rods, vertical connecting rods, and diagonal connecting rods formed by connecting the diagonals of each rectangular face. The two horizontal ends of the connecting part 7 are respectively connected to the uppermost frame 3 of the pier body of the corresponding pier column unit.

[0067] The top beam section includes a top horizontal beam 1 and a top vertical beam 2. The top horizontal beam 1 is supported on the top of the pier frame 3 above it by the top vertical beam 2. A locking mechanism 6 is provided between the horizontal connecting rod of the connecting part 7 and the top vertical beam 2 to achieve quick connection between the top beam section and the connecting part 7.

[0068] As an example, a locking mechanism 6 is also provided at the connection between the connecting part 7 and the pier frame 3. The double-ear plate 24 is mounted on the transverse connecting rod of the connecting part 7, the limiting block 21 is mounted on the vertical column 9 of the pier frame 3, and the pin 23, screw 22, and nut 20 are arranged in the same manner as in the locking mechanism 6 described above. The locking mechanism 6 also enables the connecting part 7 and the pier frame 3 to be quickly locked and unlocked, further improving erection efficiency.

[0069] Furthermore, a support positioning mechanism is provided at the connection between the connecting part 7 and the vertical column 9 of the pier frame 3. The support positioning mechanism includes a support positioning seat 8 and a positioning pin B25. The support positioning seat 8 includes a positioning plate and an elbow plate. The support positioning seat 8 is set on the side wall of the vertical column 9. The support positioning seat 8 is provided with a positioning pin hole B26. The positioning pin B25 is set at both ends of the transverse connecting rod of the connecting part 7. By cooperating with the positioning pin hole B26 at the corresponding end, the positioning connection between the connecting part 7 and the pier frame 3 is realized.

[0070] Example 3:

[0071] Based on Embodiment 1 or 2, a preferred embodiment of the height adjustment mechanism is given.

[0072] Each vertical column 9 of the lower frame 4 of the pier is equipped with a height adjustment mechanism at its bottom.

[0073] The height adjustment mechanism includes: a handle 15, a transmission nut 14, a transmission screw 16, a bearing, and a sleeve 17. The vertical column 9 of the pier lower frame 4 is a hollow structure. The upper end of the sleeve 17 is coaxially nested inside the vertical column 9, and the lower end extends out of the vertical column 9 and supports the base plate 19. The sleeve 17 can move along the axis of the vertical column 9, thereby adjusting the length of its lower end extending out of the vertical column 9, and thus realizing the adjustment of the height of the pier lower frame 4 relative to the base plate 19.

[0074] Specifically: the transmission screw 16 is coaxially supported within the vertical column 9 via a bearing (i.e., a bearing fixing seat is coaxially fixed within the vertical column 9, the bearing fixing seat is fixed to the outer ring of the bearing, and the transmission screw 16 is fixed to the inner ring of the bearing); an internal thread is provided on the upper part of the sleeve 17, and one end of the transmission screw 16 is provided with helical teeth for meshing with the transmission nut 14 to form a bevel gear; the other end is provided with an external thread that engages with the internal thread on the sleeve 17; one end of the handle 15 extends into the vertical column 9 and is fixed to the transmission nut 14, and the transmission nut 14 is rotated by the handle 15, which drives the transmission screw 16 to rotate along the axis of the sleeve 17, thereby causing the sleeve 17 to move vertically within the vertical column 9; thus, by adjusting the length of the lower end of the sleeve 17 extending out of the vertical column 9, the height of the vertical column 9 relative to the base plate 19 can be adjusted (usually, fine-tuning of the height is performed when only one pier frame 3 is installed above).

[0075] The lower end of the sleeve 17 has a ball head structure 18, which engages with the spherical groove of the base plate 19, allowing the ball head structure 18 to rotate freely. The base plate 19 can also rotate freely relative to the ball head structure 18 to adapt to non-horizontal bridge pier foundation surfaces and improve the site adaptability of the emergency highway bridge pier. In addition, a locking plate is fixedly installed on the surface of the spherical groove on the base plate 19 to limit the ball head structure 18 and prevent it from coming out.

[0076] Each vertical column 9 of the pier's lower frame 4 is equipped with a height adjustment mechanism at its bottom. Each height adjustment mechanism can be adjusted independently, so the pier can adapt to uneven pier foundations.

[0077] In summary, the above are embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An adjustable-height emergency bridge pier, characterized in that, include: Two or more pier column units are arranged at a horizontal interval, and the pier column units are connected to each other by a connecting part (7). The pier column unit includes: the pier body, the top beam above and the bottom of the pier below (5); The pier body includes: a lower pier frame (4) and several upper pier frames (3) arranged above the lower pier frame (4) and connected in sequence along the vertical direction; The bottom of the pier (5) includes a base plate (19), which is connected to the lower frame (4) of the pier body through a height adjustment mechanism.

2. The height-adjustable emergency bridge pier according to claim 1, characterized in that, The upper frame (3) and lower frame (4) of the pier are both three-dimensional frame structures with rectangular cross-sections; including several vertical columns (9) distributed along the circumference, several horizontal connecting columns that connect adjacent vertical columns (9) at the top and bottom of the vertical columns (9), and several diagonal connecting columns that connect adjacent vertical columns (9) at opposite corners.

3. The height-adjustable emergency bridge pier according to claim 2, characterized in that, Each vertical column (9) of the lower frame (4) of the pier body is equipped with a height adjustment mechanism at the bottom; The height adjustment mechanism includes: a sleeve (17); The vertical column (9) of the lower frame (4) of the pier body is a hollow structure. The upper end of the sleeve (17) is coaxially nested in the vertical column (9), and the lower end extends out of the vertical column (9) and is supported on the base plate (19). The sleeve (17) can move along the axis of the vertical column (9) to adjust the length of its lower end extending out of the vertical column (9), thereby realizing the adjustment of the height of the lower frame (4) of the pier body relative to the base plate (19).

4. The height-adjustable emergency bridge pier according to claim 3, characterized in that, The height adjustment mechanism also includes: a handle (15), a transmission nut (14), a transmission screw (16), and a bearing; The transmission screw (16) is coaxially supported in the vertical column (9) by bearings; The upper end of the sleeve (17) is coaxially nested inside the vertical column (9), the upper part of the sleeve (17) is provided with internal thread, and the lower end extends out of the vertical column (9); One end of the transmission screw (16) is provided with helical teeth for meshing with the transmission nut (14) to form a bevel gear; the other end is provided with external threads to engage with the internal threads on the sleeve (17); One end of the handle (15) extends into the vertical column (9) and is fixed to the transmission nut (14); the transmission nut (14) is rotated by the handle (15), which in turn drives the transmission screw (16) to rotate along the axis of the sleeve (17), so that the sleeve (17) moves vertically inside the vertical column (9).

5. The height-adjustable emergency bridge pier according to claim 4, characterized in that, The lower end of the sleeve (17) has a ball head structure (18); The ball head structure (18) mates with the spherical groove of the base plate (19); A locking plate is fixedly provided on the spherical groove surface of the base plate (19) for limiting the ball head structure (18).

6. The height-adjustable emergency bridge pier according to any one of claims 1-5, characterized in that, Locking mechanisms (6) are provided between the vertically adjacent pier frame (3); The locking mechanism (6) includes: a double ear plate (24), a limiting block (21), a pin (23), a screw (22), and a nut (20); the double ear plate (24) is set on the top side wall of the pier frame (3), and the limiting block (21) is set on the bottom side wall of the adjacent pier frame (3) corresponding to the double ear plate (24); The limiting block (21) is provided with a limiting groove; One end of the screw (22) is pinned to the double ear plate (24) by a pin (23), and can rotate around the pin joint to enter the limiting groove of the limiting block (21), and the end of the screw (22) is fastened by a nut (20); The locking mechanism (6) is also provided between the lower frame (4) of the pier body and the upper frame (3) of the pier body above it; The locking mechanism (6) is also provided between the connecting part (7) and the frame (3) on the pier body connected thereto.

7. The adjustable-height emergency bridge pier according to any one of claims 1-5, characterized in that, The connecting part (7) is connected to the uppermost frame (3) of the pier body; A support and positioning mechanism is provided at the connection between the connecting part (7) and the frame (3) on the pier body; The support positioning mechanism includes: a support positioning seat (8) and a positioning pin B (25). The support positioning seat (8) is set on the frame (3) of the pier body, and the support positioning seat (8) is provided with a positioning pin hole B (26). The positioning pin B (25) is disposed on the transverse connecting rod of the connecting part (7) and cooperates with the positioning pin hole B (26).

Images