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] The invention relates to the field of emergency bridges, and in particular to a bridge pier with adjustable height. Background Art

[0002] Prefabricated highway steel bridges play an important role in the field of emergency rescue, but their span is limited. In actual application, temporary bridge piers are usually added to increase the span of the bridge. In emergency rescue scenarios, the foundation conditions are complex, the bridge piers need to have a certain degree of adaptability to height changes, and the required emergency rescue time is short.

[0003] Existing emergency highway bridge piers usually complete the production of parts in the factory and assemble them into an integral structure on site. The current technical solution for erecting emergency highway bridge piers is to first pre-treat the foundation with concrete to ensure that the installation reference surface at the bottom of the bridge pier is horizontal, complete the layout of embedded parts, and then use Bailey plates and other connecting components to install them into an integral bridge pier through pins and bolts. The integral bridge pier structure uses H-shaped steel columns, bolts, etc. to assemble the bridge pier, or uses steel pipes to be welded on site to form the bridge pier.

[0004] However, the existing scheme has many problems in the erection process. For example, the types and quantities of components of emergency highway piers are numerous, and the components need to be accurately positioned when installing bolts, which increases the installation time. If on-site welding of steel pipes is used, and the operation of the welding machine is affected by weather reasons, the completion time of the emergency pier erection cannot be guaranteed. In addition, the existing connection components such as Bailey plates do not have adjustable height functions and cannot meet the erection requirements of different heights. Even when the flatness requirements for the foundation of emergency highway piers are high, the existing pier components do not have corresponding mechanisms to fine-tune the verticality and horizontality of the piers, and cannot meet the erection requirements of emergency highway piers with high flatness requirements. Summary of the invention

[0005] The present invention provides an emergency bridge pier with adjustable height. The length of the pier body is adjusted by changing the number of frames on the pier body to adapt to different pier height requirements. On this basis, the height of the frame under the pier body can be further fine-tuned through a height adjustment mechanism at the bottom of the pier to improve the site adaptability of the emergency highway bridge pier.

[0006] The emergency bridge pier comprises: more than two bridge pier column units, the more than two bridge pier column units are arranged at intervals in the transverse direction, and the bridge pier column units are connected by connecting parts;

[0007] The bridge pier column unit comprises: a pier body portion, an upper top beam portion, and a lower pier bottom portion;

[0008] 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 connected in sequence along the vertical direction;

[0009] The bottom of the pier comprises a bottom plate, and the bottom plate is connected to the lower frame of the pier body through a height adjustment mechanism.

[0010] As a preferred embodiment of the present invention, the pier body upper frame and the pier body lower frame are both three-dimensional frame structures with a rectangular cross-section; they include a number of vertical columns distributed along the circumference, a number of horizontal connecting columns at the top and bottom of the vertical columns to connect adjacent vertical columns, and a number of oblique connecting columns connecting adjacent vertical columns diagonally.

[0011] As a preferred embodiment of the present invention, a height adjustment mechanism is provided at the bottom of each vertical column of the pier lower frame;

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

[0013] The vertical columns of the frame under the pier body are hollow structures. The upper end of the sleeve is coaxially nested in the vertical columns, and the lower end extends out of the vertical columns to be supported on the base plate. The sleeve can move along the axial direction of the vertical columns to adjust the length of its lower end extending out of the vertical columns, thereby realizing the adjustment of the height of the frame under the pier body relative to the base plate.

[0014] As a preferred embodiment of the present invention, the height adjustment mechanism further comprises: a handle, a transmission nut, a transmission screw and a bearing;

[0015] The transmission screw is coaxially supported in the vertical column through a bearing;

[0016] The upper end of the sleeve is coaxially nested in the vertical column, the upper part of the sleeve is provided with an internal thread, 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 an external thread that cooperates with the internal thread on the sleeve;

[0018] One end of the handle extends into the vertical column to be fixedly connected to a transmission nut; the transmission nut is rotated by the handle, thereby driving the transmission screw to rotate along the axis of the sleeve, so that the sleeve moves vertically in the vertical column.

[0019] As a preferred embodiment of the present invention, the lower end of the sleeve has a ball head structure;

[0020] The ball head structure cooperates with the spherical groove of the bottom plate;

[0021] A locking plate is fixedly arranged on the surface of the spherical groove on the bottom plate, and is used to limit the ball head structure.

[0022] As a preferred embodiment of the present invention, locking mechanisms are provided between vertically adjacent upper pier frames;

[0023] The locking mechanism comprises: a double-ear plate, a limit block, a pin, a screw and a nut; the double-ear plate is arranged on the top side wall of the frame on the pier body, and the limit block is arranged on the side wall corresponding to the double-ear plate at the bottom of the frame on the adjacent pier body;

[0024] The limit block is provided with a limit slot;

[0025] One end of the screw is pin-connected to the double-ear plate through a pin shaft, and can rotate around the pin connection to enter the limiting groove of the limiting block, and the end of the screw is fastened by a nut;

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

[0027] The locking mechanism is also arranged between the connecting portion and the frame on the pier body connected thereto.

[0028] As a preferred embodiment of the present invention, the connecting portion is connected to the uppermost pier body frame of the pier body portion;

[0029] A support and positioning mechanism is provided at the connection between the connecting portion and the frame on the pier body;

[0030] The support and positioning mechanism comprises: a support and positioning seat and a positioning pin B, wherein the support and positioning seat is arranged on the frame of the pier body, and a positioning pin hole B is arranged on the support and positioning seat;

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

[0032] Beneficial Effects

[0033] (1) The height-adjustable emergency pier of the present invention is arranged in a transverse interval through more than one pier column unit, and the pier column units are connected by a connecting portion, so that the components of the emergency highway pier are divided into units, the number of components is reduced, and the erection time is shortened. In addition, since the pier body part has a plurality of upper frames, it can solve the problem that the connecting components such as Bailey plates of traditional piers do not have an adjustable height function and cannot meet the erection requirements of different heights.

[0034] (2) The bottom of the height-adjustable emergency pier of the present invention is also provided with a height-adjusting mechanism, which can fine-tune the height of the emergency pier to meet the requirements for erecting piers on foundations of different heights in the same area.

[0035] (3) The bottom of the sleeve of the height-adjustable emergency pier of the present invention is provided with a ball head structure, which cooperates with the spherical groove structure on the bottom plate, so that the bottom plate can rotate around the ball head structure at any angle, thereby further improving the adaptability of the emergency highway pier to uneven sites.

[0036] (4) In the height-adjustable emergency bridge pier of the present invention, locking mechanisms are provided between adjacent pier upper frames and between the pier upper frames and the pier lower frames, which can achieve rapid locking and unlocking, thereby improving the efficiency of emergency highway bridge pier erection. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a front view of the emergency bridge pier with adjustable height of the present invention;

[0038] Figure 2 A side view of an emergency bridge pier with adjustable height according to the present invention;

[0039] Figure 3 for Figure 1 A partial enlarged view of the middle I position;

[0040] Figure 4 For along Figure 3 Sectional view along line AA;

[0041] Figure 5 for Figure 1 A partial enlarged view of the II position;

[0042] Figure 6 for Figure 1 A partial enlarged view of the position III in the middle;

[0043] Figure 7 It is a front view of the frame on the pier body of the height-adjustable emergency pier of the present invention;

[0044] Figure 8 A side view of the frame on the pier body of the height-adjustable emergency pier of the present invention;

[0045] Fig. 9 It is a front view of the locking mechanism of the height-adjustable emergency bridge pier of the present invention;

[0046] Fig.10 It is a side view of the locking mechanism of the height-adjustable emergency bridge pier of the present invention;

[0047] Fig.11 It is a front view of the limit block of the emergency bridge pier with adjustable height of the present invention;

[0048] Fig.12 It is a top view of the limit block of the emergency bridge pier with adjustable height of the present invention;

[0049] Fig.13 It is a front view of the connection part of the height-adjustable emergency bridge pier of the present invention;

[0050] Fig.14 It is a front view of the support and positioning seat of the emergency bridge pier with adjustable height of the present invention;

[0051] Fig.15 A top view of a support and positioning seat of an emergency bridge pier with adjustable height according to the present invention;

[0052] Among them, 1-top cross beam, 2-top vertical beam, 3-frame on the pier body, 4-frame under the pier body, 5-bottom of the pier, 6-locking mechanism, 7-connecting part, 8-support positioning seat, 9-vertical column, 10-transverse connecting column, 11-oblique connecting column, 12-locating pin A, 13-locating pin hole A, 14-transmission nut, 15-handle, 16-transmission screw, 17-sleeve, 18-ball head structure, 19-bottom plate, 20-nut, 21-limiting block, 22-screw, 23-pin shaft, 24-double ear plate, 25-locating pin B, 26-locating pin hole B. DETAILED DESCRIPTION

[0053] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0054] Embodiment 1:

[0055] This embodiment provides an emergency bridge pier with adjustable height. The length of the pier body can be adjusted by changing the number of frames on the pier body to meet different pier height requirements.

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

[0057] like Figure 1-Figure 15 As shown, the emergency pier includes: more than two pier column units, the pier column unit includes: a pier body, an upper top beam, and a lower pier bottom 5, the pier body, the top beam, and the pier bottom 5 together form a pier column unit. More than two pier column units are arranged at intervals in the transverse direction, and adjacent pier column units are connected by connecting parts 7.

[0058] The pier body includes a pier body lower frame 4 and a plurality of pier body upper frames 3 which are arranged above the pier body lower frame 4 and are connected in sequence along the vertical direction. Therefore, the height of the pier column unit increases with the increase in the number of pier body upper frames 3. This design can solve the problem that the existing pier components do not have a height adjustable function and meet the requirements for erecting piers of different heights.

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

[0060] Embodiment 2:

[0061] On the basis of Embodiment 1, further limitations are imposed on the pier upper frame 3, the pier lower frame 4, the connecting portion 7 and the top beam portion.

[0062] The upper frame 3 of the pier and the lower frame 4 of the pier are both three-dimensional frame structures with rectangular cross sections. For a complete pier column unit, the upper frame 3 of the pier and the lower frame 4 of the pier include six vertical columns 9 distributed along the circumference, a number of transverse connecting columns at the top and bottom of the vertical columns 9 to connect adjacent vertical columns 9, and a number of oblique connecting columns connecting adjacent vertical columns 9 diagonally.

[0063] Each vertical column 9 of the upper frame 3 of the pier body is provided with a locating pin hole A13 at the top, and a locating pin A12 cooperating with the locating pin hole A13 is provided at the bottom; the upper and lower adjacent pier body frames 3 are vertically butted together through the cooperation of the locating pin A12 and the locating pin hole A13. Similarly, the pier body frames 3 and the lower pier body frames 4 are vertically butted together in the same way to form a complete pier column unit.

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

[0065] As an example, the locking mechanism 6 specifically includes: a double-ear plate 24, a limit block 21, a pin 23, a screw 22 and a nut 20. The double-ear plate 24 is arranged on the top side wall of the vertical column 9 of the frame 3 on the pier body, the limit block 21 is arranged on the side wall corresponding to the double-ear plate 24 at the bottom of the vertical column 9 of the frame 3 on the adjacent pier body, and a limit groove is arranged on the limit block 21. 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; thereby, the screw 22 can rotate upward around the pin 23 to the limit groove of the limit block 21, and the end of the screw 22 is tightened 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 limit block 21, so that the adjacent frames 3 on the pier body can be quickly separated.

[0066] As an example, the connection part 7 is a horizontally arranged rectangular three-dimensional frame structure, including a horizontal connection rod, a vertical connection rod, and an oblique connection rod formed by connecting the diagonals of each rectangular surface. The two horizontal ends of the connection part 7 are respectively connected to the upper pier frame 3 located at the top of the pier shaft of the pier column unit on the corresponding side.

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

[0068] As an example, a locking mechanism 6 is also provided at the connection between the connection part 7 and the upper frame 3 of the pier body. Among them, the double ear plate 24 is arranged on the transverse connecting rod of the connection part 7, the limit block 21 is arranged on the vertical column 9 of the upper frame 3 of the pier body, and the arrangement of the pin 23, the screw rod 22 and the nut 20 is consistent with that in the above-mentioned locking mechanism 6. The locking mechanism 6 also enables the connection part 7 and the upper frame 3 of the pier body to be quickly locked and unlocked, further improving the erection efficiency.

[0069] Furthermore, a support positioning mechanism is also provided at the connection between the connecting part 7 and the vertical column 9 of the upper frame 3 on the pier body; 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 arranged on the side wall of the vertical column 9, and a positioning pin hole B26 is provided on the support positioning seat 8. The positioning pins B25 are arranged at both ends of the transverse connecting rod of the connecting part 7, and the positioning connection between the connecting part 7 and the upper frame 3 on the pier body is realized by cooperating with the positioning pin holes B26 at the corresponding ends.

[0070] Embodiment 3:

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

[0072] A height adjustment mechanism is provided at the bottom of each vertical column 9 of the pier body lower frame 4.

[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 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 bottom plate 19; the sleeve 17 can move along the axial direction of the vertical column 9, so as 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 bottom plate 19.

[0074] Specifically: the transmission screw 16 is coaxially supported in the vertical column 9 by the bearing (that is, a bearing fixing seat is coaxially fixed on the vertical column 9, the bearing fixing seat is fixedly connected 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 to cooperate with the internal thread on the sleeve 17; one end of the handle 15 extends into the vertical column 9 and is fixedly connected to the transmission nut 14, and the transmission nut 14 is rotated by the handle 15, and the transmission nut 14 drives the transmission screw 16 to rotate along the axis of the sleeve 17, thereby causing the sleeve 17 to move vertically in the vertical column 9; thereby, by adjusting the length of the lower end of the sleeve 17 extending out of the vertical column 9, the purpose of adjusting the height of the vertical column 9 relative to the base plate 19 is achieved (usually, when only one pier body frame 3 is set above, the height is fine-tuned).

[0075] The lower end of the sleeve 17 is provided with a ball head structure 18, and the ball head structure 18 cooperates with the spherical groove of the base plate 19, so that the ball head structure 18 can rotate freely, and the base plate 19 can also rotate freely relative to the ball head structure 18 to adapt to the non-horizontal bridge pier foundation surface, thereby improving the site adaptability of the emergency highway bridge pier; in addition, a locking plate is fixedly provided on the surface of the spherical groove on the base plate 19 to limit the ball head structure 18 and prevent it from falling out.

[0076] A height adjustment mechanism is provided at the bottom of each vertical column 9 of the lower frame 4 of the pier body, and each height adjustment mechanism can be adjusted independently. Therefore, the pier can adapt to uneven pier foundations.

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

Claims

1. An emergency bridge pier with adjustable height, characterized in that: include: More than two pier column units, the two or more pier column units are arranged at intervals in the transverse direction, and the pier column units are connected via a connecting portion (7); The bridge pier column unit comprises: a pier body portion, an upper top beam portion, and a lower pier bottom portion (5); The pier body part comprises: a pier body lower frame (4) and a plurality of pier body upper frames (3) arranged above the pier body lower frame (4) and connected in sequence in a vertical direction; The pier bottom (5) comprises a bottom plate (19), and the bottom plate (19) is connected to the lower frame (4) of the pier body via a height adjustment mechanism.

2. The height-adjustable emergency bridge pier according to claim 1, characterized in that: The pier upper frame (3) and the pier lower frame (4) are both three-dimensional frame structures with rectangular cross-sections, comprising a plurality of vertical columns (9) distributed along the circumference, a plurality of transverse connecting columns at the top and bottom of the vertical columns (9) for connecting adjacent vertical columns (9), and a plurality of oblique connecting columns for connecting adjacent vertical columns (9) diagonally.

3. The height-adjustable emergency bridge pier according to claim 2, characterized in that: A height adjustment mechanism is provided at the bottom of each vertical column (9) of the pier body lower frame (4); The height adjustment mechanism comprises: 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 protrudes from the vertical column (9) to be supported on the base plate (19); the sleeve (17) can move along the axial direction of the vertical column (9), so as to adjust the length of the lower end thereof protruding from 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 further comprises: 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) via a bearing; The upper end of the sleeve (17) is coaxially nested in the vertical column (9), the upper part of the sleeve (17) is provided with an 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 an external thread for matching with the internal thread on the sleeve (17); One end of the handle (15) extends into the vertical column (19) and is fixedly connected to the transmission nut (14); the transmission nut (14) is rotated by the handle (15), thereby driving the transmission screw (16) to rotate along the axis of the sleeve (17), so that the sleeve (17) moves vertically in 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) cooperates with the spherical groove of the bottom plate (19); A locking plate is fixedly arranged on the surface of the spherical groove on the bottom plate (19) and is used to limit the position of the ball head structure (18).

6. The height-adjustable emergency bridge pier according to any one of claims 1 to 5, characterized in that: A locking mechanism (6) is provided between vertically adjacent pier upper frames (3); The locking mechanism (6) comprises: a double-ear plate (24), a limit block (21), a pin shaft (23), a screw rod (22) and a nut (20); the double-ear plate (24) is arranged on the top side wall of the pier body upper frame (3), and the limit block (21) is arranged on the side wall of the bottom of the adjacent pier body upper frame (3) corresponding to the double-ear plate (24); The limit block (21) is provided with a limit groove; One end of the screw rod (22) is pin-connected to the double-ear plate (24) via a pin shaft (23) and can rotate around the pin connection to enter the limiting groove of the limiting block (21), and the end of the screw rod (22) is fastened via 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 portion (7) and the pier frame (3) connected thereto.

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

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