Prefabricated bridge deck slab mounting mechanism

Abstract

The utility model relates to the field of bridge construction, and particularly discloses a prefabricated bridge deck slab mounting mechanism which comprises a plurality of guide pieces provided with hard sections, conical sections which are mutually folded in a default state and abut against the side wall of a stand column when the conical sections move are fixedly mounted on the hard sections, and the prefabricated bridge deck slab mounting mechanism further comprises arc pressing plates which are arranged on the hard sections and provided with vertical sliding paths. According to the prefabricated bridge deck slab mounting mechanism, the conical sections forming the conical shape are inserted into the holes in the bottom of the prefabricated bridge deck slab, the holes are corrected at the conical positions in the process, the purpose of synchronizing the axes of the holes and the axes of the stand columns is achieved, the stand columns are prevented from being crushed due to deviation in the prefabricated bridge deck slab mounting process, and the service life of the stand columns is prolonged. And then the bottom of the prefabricated bridge deck slab applies pressure to the multiple arc pressing plates to move downwards, the arc pressing plates are switched to be in a vertical state along with sliding of the conical sections at the upper ends of the stand columns, at the moment, precise butt joint installation of the holes and the stand columns is achieved, and precise butt joint of the prefabricated bridge deck slab and the bridge piers is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction equipment technical field, concretely related to a prefabricated bridge deck slab mounting mechanism. BACKGROUND

[0002] The steel reinforced concrete prefabricated bridge deck slab is usually hoisted by truck crane during installation, and is assembled by reinforcing steel bars and hoisting frame, so that the prefabricated bridge deck slab remains stable during operation and placement.

[0003] According to the public (announcement) number: CN220035208U, the public (announcement) day: November 17, 2023, a prefabricated bridge deck slab mounting mechanism is disclosed, which comprises a hook and a steel wire rope for connecting the prefabricated bridge deck slab, and the prefabricated bridge deck slab is hoisted by the steel wire rope through the conveying frame.

[0004] In the prior art including the above-mentioned patent, when hoisting the prefabricated bridge deck slab to the predetermined installation position of the pier, the installation position usually has a stand that is butt jointed with the hole on the prefabricated bridge deck slab, and the stand is embedded in the interior of the prefabricated bridge deck slab for long-term installation after installation. The stand also plays a positioning function during hoisting, but the steel wire rope used to solve the stroke problem during assembly cannot completely guarantee whether the stand and the hole are offset during butt joint, although the hole provides a certain offset space for the stand. When offset occurs during butt joint, the weight of the prefabricated bridge deck slab will cause certain damage to the stand, so that the connection position of the stand and the pier is damaged, affecting the stability of the stand and the prefabricated bridge deck slab after installation, that is, affecting the stability and safety of the prefabricated bridge deck slab after installation. SUMMARY

[0005] The utility model aims at providing a prefabricated bridge deck slab mounting mechanism to solve the above-mentioned problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A prefabricated bridge deck slab mounting mechanism comprises a pier provided with a stand, a plurality of guide members provided with a hard section, and a taper section fixedly installed on the hard section and moved downward to abut against the side wall of the stand in the default state.

[0008] Further comprising an arc pressing plate provided on the outer side of the hard section and having a vertical sliding path, and the arc pressing plate is matched with a lock piece for inserting and connecting adjacent guide members.

[0009] A pull rope is further arranged between adjacent guide members.

[0010] Preferably, an arc-shaped seat is fixedly installed on the outer side wall of the hard section, and the end of the arc pressing plate is flush with the end of the arc-shaped seat after moving downward.

[0011] Preferably, the end of the hard segment is fixedly installed with an elastic segment which is in abutting engagement with the end face of the pier.

[0012] Preferably, the lock piece is provided with an inner notch, and the inner side wall of the arc pressing plate is fixedly installed with a limiting protrusion which is in sliding engagement with the inner notch.

[0013] Preferably, the arc pressing plate is provided with a lock block, and the lock piece is provided with a plurality of lock grooves which are in engagement with the lock block.

[0014] Preferably, the arc pressing plate is provided with an extension plate which is used for connecting the lock block.

[0015] Preferably, the lock piece is provided with a pull spring which is in engagement with the plurality of lock grooves.

[0016] Preferably, the end of the arc pressing plate is further hingedly provided with a trigger plate which is in abutting engagement with the elastic segment, and the trigger plate is used as a fulcrum to pull down the arc pressing plate into the arc-shaped seat.

[0017] Preferably, the taper segment is specifically an elastic metal sheet.

[0018] Preferably, the pull rope is specifically a steel wire rope.

[0019] In the above technical solution, the prefabricated bridge deck panel mounting mechanism has the following beneficial effects: a plurality of taper segments which are composed of a taper are inserted into the holes in the bottom of the prefabricated bridge deck panel, and the taper positions are used to correct the holes during the process, so as to synchronize the axes of the holes and the columns, avoid the prefabricated bridge deck panel from being offset during the mounting process and causing the columns to be pressed, and then the bottom of the prefabricated bridge deck panel is used to press down the plurality of arc pressing plates, and the taper segments are used to slide on the upper ends of the columns to switch to a vertical state, at this time, the holes and the columns have been precisely connected and mounted, the prefabricated bridge deck panel and the pier have been precisely connected, and the connection position between the columns and the pier is not damaged. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0021] Figure 1 The figure shows a pier column assembly guide provided by the embodiment of the present application;

[0022] Figure 2 The figure shows a plurality of guide piece hoop installation schematic diagram provided by the embodiment of the present application;

[0023] Figure 3 The arc pressing plate and the locking piece assembly schematic view provided by the utility model embodiment;

[0024] Figure 4 The guide side surface section view schematic view provided by the utility model embodiment.

[0025] Mark explanation:

[0026] 1, pier; 11, stand; 2, guide; 21, hard segment; 22, taper segment; 23, elastic segment; 24, arc-shaped seat; 3, arc pressing plate; 31, limiting protrusion; 32, extension plate; 33, lock block; 34, trigger plate; 4, locking piece; 41, inner notch; 42, lock groove; 5, pull rope. Specific implementation

[0027] In order to make the technical personnel in the art better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0028] As Figures 1-4 Indicated, a prefabricated bridge deck slab installation mechanism, including the pier 1 provided with the stand 11, still including the multiple guides 2 provided with the hard segment 21, the hard segment 21 is fixedly installed with the taper segment 22 that mutually converges in default state, and moves and is resisted on the side wall of stand 11;

[0029] Still include the arc pressing plate 3 that is set up in the outer side of hard segment 21, and have vertical sliding path, the arc pressing plate 3 is matched with the locking piece 4 for inserting adjacent guide 2;

[0030] Adjacent guide 2 between still be provided with pull rope 5.

[0031] Specifically, multiple guides 2 circumferential arrangement, and the end of arc-shaped locking piece 4 is rounded, so that locking piece 4 is inserted into guide 2 and locked, and the arc-shaped position of locking piece 4 middle is not provided with slot and hole and is made of elastic metal plate, and the flexibility of elastic metal plate does not interfere with the normal connection of the rest position of locking piece 4, and the arc pressing plate 3 is specifically hard metal plate.

[0032] Further, the outer wall of hard segment 21 is attached to the inner wall of the hole at the bottom of the prefabricated bridge deck slab, and the interval is formed between adjacent guides 2, and the interval is circumferentially arranged, and one of the intervals is not provided with a pull rope 5, and the rest of the intervals are provided with a pull rope 5, so that the multiple guides 2 after unlocking are connected by the pull rope 5 and form a strip shape, so that the released guides 2 can be easily pulled out of the bottom of the prefabricated bridge deck slab by the construction personnel.

[0033] The plurality of taper segments 22 are inserted into the holes in the bottom of the prefabricated bridge deck, and the taper segments 22 correct the deviation of the holes during the insertion process, so that the axes of the holes and the columns 11 are synchronized, thereby avoiding the columns 11 being crushed due to deviation during the installation of the prefabricated bridge deck, and then the plurality of arc pressure plates 3 are pressed downward by the bottom of the prefabricated bridge deck, and the taper segments 22 are switched to a vertical state by sliding on the upper ends of the columns 11, at this time, the holes and the columns 11 are precisely connected and installed, then the lock pieces 4 are unlocked at the predetermined position to make the plurality of guide pieces 2 separate from each other, so that the guide pieces 2 lie on the upper surface of the pier 1, finally, the guide pieces 2 are connected by the pulling ropes 5 after being released and scattered, and the plurality of guide pieces 2 are pulled out of the pier 1 from the bottom of the prefabricated bridge deck, thereby completing the precise connection and installation of the prefabricated bridge deck and the pier 1, and avoiding damage to the connection position between the columns 11 and the pier 1.

[0034] As a further provided embodiment of the utility model, the outer side wall of the hard segment 21 is fixedly installed with an arc-shaped seat 24, and the end of the arc pressure plate 3 is flush with the end of the arc-shaped seat 24 after being moved downward.

[0035] Specifically, the arc-shaped seat 24 is a thickened hard metal plate on the outer side wall of the hard segment 21, and a cavity is formed in the plate for the movement of parts.

[0036] By making the upper end of the arc pressure plate 3 flush with the upper end of the arc-shaped seat 24 during the downward movement of the bottom of the prefabricated bridge deck, the contact area is larger during the pushing of the guide pieces 2 by the bottom of the prefabricated bridge deck, and the moved guide pieces 2 are more stable, which facilitates the switching of the vertical taper segments 22 to play a role in deviation correction and finishing work, and the precision of the connection is enhanced.

[0037] As another further provided embodiment of the utility model, the end of the hard segment 21 is fixedly installed with an elastic segment 23 which abuts against the end face of the pier 1.

[0038] Specifically, the elastic segment 23 has an arc shape in the default state, and the lower end arc surface extends radially away from the hoop axis after abutting.

[0039] The elastic segment 23 is used to slow down the downward movement of the guide pieces 2, and also provides resistance to the lowering of the prefabricated bridge deck, so that the connection process is stable and safe.

[0040] As another further provided embodiment of the utility model, an inner notch 41 is formed in the lock piece 4, and a limiting protrusion 31 is fixedly installed on the inner side wall of the arc pressure plate 3 and is in sliding cooperation with the inner notch 41.

[0041] Specifically, the inner notch 41 is located at the lower end face of the lock piece 4, and the arc pressure plate 3 located outside the arc face of the lock piece 4 has the limiting protrusion 31 extending inward, which facilitates the vertical sliding cooperation.

[0042] The limiting protrusion 31 is slid out of the inner notch 41 with the slope by the arc pressing plate 3 after moving down, so that the lock piece 4 loses the transverse limitation and moves circumferentially, that is, the round corner end of the lock piece 4 is pulled out from the adjacent arc-shaped seat 24, and the adjacent guide piece 2 is released.

[0043] As further provided in another embodiment of the utility model, the arc pressing plate 3 is provided with a lock block 33, and the lock piece 4 is provided with a plurality of lock grooves 42 matched with the lock block 33.

[0044] The lock block 33 is inserted into the lock groove 42 to realize fixation, and the purpose is to obtain the completely locked lock piece 4, and when the lock block 33 is pulled out from the lock groove 42 downward first, the limiting protrusion 31 keeps resisting the inner notch 41, and the limiting protrusion 31 releases the limitation of the lock piece 4 when the arc pressing plate 3 moves down secondly.

[0045] As further provided in another embodiment of the utility model, the arc pressing plate 3 is provided with an extension plate 32 used for connecting the lock block 33.

[0046] The extension plate 32 is used to unlock the lock piece 4 when the lock block 33 moves down first, and vice versa, so that the limiting protrusion 31 located in the first movement path can change the position on the slope of the inner notch 41 after the lock piece 4 is inserted into the adjacent arc-shaped seat 24.

[0047] As further provided in another embodiment of the utility model, the lock piece 4 is provided with a pull spring matched with the plurality of lock grooves 42.

[0048] Specifically, the pull spring is welded to the end of the lock piece 4, a plurality of springs are welded on the arc pressing plate 3, and the elastic coefficient of the spring is greater than the elastic coefficient of the pull spring.

[0049] The plug-in position of the lock block 33 and the lock groove 42 is adjusted to adapt the plurality of guide pieces 2 to different specifications of the column 11 hoop, and the spring in the default state can press the lock block 33 after the lock groove 42 is docked, so that the locking and fixing effect is kept in a constant state.

[0050] As further provided in another embodiment of the utility model, the end of the arc pressing plate 3 is further hingedly provided with a trigger plate 34, the trigger plate 34 is in abutment with the elastic section 23, and the trigger plate 34 is pivoted at the end gap edge of the arc-shaped seat 24 to pull down the arc pressing plate 3 and retract into the arc-shaped seat 24.

[0051] Specifically, the trigger plate 34 keeps vertical in the default state, and the lower end of the arc-shaped seat 24 gives the trigger plate 34 a triangular space for rotation, and the fulcrum is also located at the triangular port.

[0052] By moving the trigger plate 34 to a predetermined position and abutting the inner wall of the curled elastic section 23, the time for the trigger plate 34 to recognize the upper surface of the pier 1 is shortened. That is, after the trigger plate 34 moves down, the outer end slides on the elastic section 23 and rotates with the trigger plate 34. Finally, when the trigger plate 34 reaches the fulcrum position, the outer end of the trigger plate 34 continues to slide and generates an upward force. Under the action of the lever, the inner hinge end of the trigger plate 34 generates a downward force and pulls the arc pressure plate 3 to move down in the third stage. At this time, the upper end of the arc pressure plate 3 retracts into the arc seat 24 and releases the limiting protrusion 31 to the inner notch 41, so that the trigger plate 34 is used to release the insertion of the lock 4.

[0053] As another embodiment of the present invention, the cone segment 22 is specifically an elastic metal sheet.

[0054] The flexible metal sheet can make the cone section 22 shape change significantly, and can be quickly switched to slide on the surface of the column 11 when used for correction and finishing work.

[0055] As another embodiment of this utility model, the pull rope 5 is specifically a steel wire rope.

[0056] Using steel wire ropes to fix the pull rope 5 to the adjacent guide 2 makes it more durable and corrosion resistant, and the pull rope 5 remains slack after being clamped by the guide 2, ensuring that the pull rope 5 is compatible with the specifications of the column 11.

[0057] Working principle: Multiple conical segments 22 are inserted into holes at the bottom of the precast bridge panel. During this process, the conical positions correct the holes, synchronizing the axes of the holes and the columns 11 to prevent misalignment during the installation of the precast bridge panel and damage to the columns 11. Then, multiple arc-shaped pressure plates 3 are pressed down at the bottom of the precast bridge panel, and the conical segments 22 slide on the upper part of the columns 11, switching to a vertical state. At this point, the holes and columns 11 are precisely aligned and installed. Then, the locking device 4 is unlocked at a predetermined position to disengage the multiple guides 2, allowing the guides 2 to lie down on the upper surface of the pier 1. Finally, the pull rope 5 is used to connect the released guides 2 and pull the multiple guides 2 out of the bottom of the precast bridge panel and the pier 1, thus completing the precise alignment and installation of the precast bridge panel and the pier 1.

[0058] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A precast bridge deck panel mounting mechanism comprising a pier (1) provided with a column (11), characterized in that, The utility model also comprises a plurality of guides (2) provided with hard segments (21), wherein the hard segments (21) are fixedly installed with cone segments (22) which are close to each other in a default state and are moved to abut against the side walls of the stand (11). The utility model also comprises an arc pressing plate (3) provided outside the hard segments (21) and having a vertical sliding path, wherein the arc pressing plate (3) is matched with a locking piece (4) used for plugging adjacent guides (2). A pull rope (5) is arranged between the adjacent guides (2).

2. A precast bridge deck panel mounting mechanism as defined in claim 1 wherein, An arc-shaped seat (24) is fixedly installed on the outer wall of the hard segment (21), and the end of the arc pressing plate (3) is flush with the end of the arc-shaped seat (24) after being moved downward.

3. A precast bridge deck panel mounting mechanism as defined in claim 1 wherein, An elastic segment (23) is fixedly installed on the end of the hard segment (21) and abuts against the end face of the pier (1).

4. A precast bridge deck panel mounting mechanism as defined in claim 1 wherein, An inner notch (41) is formed in the locking piece (4), and a limiting protrusion (31) is fixedly installed on the inner wall of the arc pressing plate (3) and is in sliding cooperation with the inner notch (41).

5. A precast bridge deck panel mounting mechanism according to claim 4 wherein, A locking block (33) is arranged on the arc pressing plate (3), and a plurality of locking grooves (42) are formed in the locking piece (4) and are matched with the locking block (33).

6. A precast bridge deck panel mounting mechanism as defined in claim 5 wherein, An extension plate (32) is arranged on the arc pressing plate (3) and is used for connecting the locking block (33).

7. A precast bridge deck panel mounting mechanism as defined in claim 5 wherein, A pull spring is arranged on the locking piece (4) and is matched with the plurality of locking grooves (42).

8. A precast bridge deck panel mounting mechanism according to claim 7, wherein, A trigger plate (34) is hingedly arranged on the end of the arc pressing plate (3), the trigger plate (34) abuts against the elastic segment (23), and the trigger plate (34) is pivoted at the notch edge of the end of the arc-shaped seat (24) and is used for pulling down the arc pressing plate (3) to retract into the arc-shaped seat (24).

9. A precast bridge deck panel mounting mechanism as defined in claim 1 wherein, The cone segment (22) is specifically an elastic metal sheet.

10. A precast bridge deck panel mounting mechanism as defined in claim 1 wherein, The pull rope (5) is specifically a steel wire rope.

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