Box girder top plate frame

Abstract

The utility model discloses a box girder top plate frame which comprises bottom frames, two trusses used for connection are symmetrically arranged at the upper ends of the bottom frames, two supporting frames are symmetrically arranged at the upper ends of the bottom frames, a containing frame is arranged on the outer side wall of the side, away from the trusses, of each supporting frame, and a plurality of containing grooves are formed in each containing frame. Each supporting frame is provided with an auxiliary fixing assembly. According to the device, a worker sequentially and manually operates the poke rods at the two ends of the bottom frame, the poke rods are matched with the limiting mechanisms to drive the tooth columns to rotate, the poke rods are matched with the adjusting assemblies to drive the limiting frames to move in the sliding grooves, and a plurality of steel bars are attached to the side walls of the containing grooves in the same direction; therefore, the distance between the adjacent steel bars is limited, the situation that the stress performance of the whole box girder top plate structure is reduced due to the fact that the distance is not uniform in the binding process is reduced, and the stability of the box girder top plate is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to construction equipment technical field especially, relates to a box beam roof board frame. BACKGROUND

[0002] In modern bridge engineering construction, as a common structure form, the construction quality of box beam plays a vital role in the overall performance and service life of the bridge, and the reinforcement binding quality of the box beam roof is particularly critical as the part directly bearing the vehicle load.

[0003] At present, in the box beam roof reinforcement binding operation process, the construction personnel will place the reinforcement in the pre-set binding groove according to the design scheme, and then bind and fix it; however, the groove is slightly larger than the diameter of the reinforcement in actual operation, and this seemingly small size difference has caused a series of serious problems in the reinforcement binding link; when the binding groove is larger than the reinforcement, the position stability of the reinforcement in the groove is poor during the binding operation of the reinforcement, and displacement is prone to occur, which makes it difficult to accurately control the spacing between adjacent reinforcements, and the size difference frequently occurs; the stress performance of the box beam roof structure is highly dependent on the uniform and reasonable arrangement of the reinforcement, and uneven spacing between adjacent reinforcements will cause the stress of the box beam roof to be unevenly distributed when bearing various loads; due to the excessive spacing between the reinforcements in some parts, the bearing capacity is relatively weak, and in the long-term use process, cracks, deformation and other diseases may occur first, which seriously affects the overall performance and durability of the box beam roof structure, and further threatens the safe operation of the entire bridge.

[0004] Therefore, a box beam roof frame is proposed to fix the reinforcement during binding, which solves the above problems in this way. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at: aiming at the above-mentioned problems, providing a box beam roof frame, the utility model is manually operated by the staff in turn the push rod of the bottom frame two ends, the cooperation restriction mechanism drives the gear post to rotate, the cooperation adjustment assembly drives the restriction frame to move in the sliding slot and sliding groove, and multiple reinforcements are placed close to the groove side wall in the same direction, since the spacing between multiple placing grooves is fixed, the spacing between adjacent reinforcements is limited, the condition that the stress performance of the entire box beam roof structure is reduced due to the size difference in the binding process is reduced, the stability of the box beam roof is improved, in order to realize the above-mentioned utility model purposes, the technical scheme adopted by the utility model is as follows:

[0006] According to one aspect of the utility model, provide a kind of box girder roof frame, including underframe, multiple the underframe sequentially ordered arrangement, and multiple underframe upper end is symmetrically equipped with two trusses for connection, multiple the underframe upper end is symmetrically equipped with two support frames, and each support frame is located truss side, each the support frame is equipped with placing rack on truss side far from, each the placing rack is equipped with multiple placing slots, and multiple placing slots on two placing racks correspond to each other, each the support frame is equipped with auxiliary fixing assembly.

[0007] Preferably, the auxiliary fixing assembly includes a limiting frame disposed on the support frame near the truss, the limiting frame has a plurality of limiting slots, and the limiting slots correspond to the placing slots, the support frame near the limiting frame has a sliding groove, the limiting frame has a sliding strip, and the sliding strip is slidably connected to the sliding groove, each of the underframes has a sliding groove at the top, and the limiting frame is disposed in the sliding grooves, and the limiting frame has an adjusting mechanism at the bottom.

[0008] Preferably, the adjusting mechanism includes a rack disposed on the left lower end of the support frame, and the inner wall of the underframe at the left end has a mounting seat, the mounting seat has a toothed column engaged with the rack through a rotating shaft, the underframe has a movable slot, the mounting seat has a lever on the side, and the lever is connected to the rotating shaft, the lever extends outward through the movable slot, and the mounting seat has a limiting mechanism.

[0009] Preferably, the limiting mechanism includes a crossbar disposed on the mounting seat, and the crossbar is coaxially connected to the rotating shaft, the crossbar has an intercepting block at the end, and a plurality of transverse slots are circumferentially formed on the crossbar, the crossbar has a sleeve, and a plurality of protrusions are circumferentially formed on the inner ring wall of the sleeve, each protrusion slides in the corresponding transverse slot, the lever is connected to the outer circumference of the sleeve, the movable slot has a clamping slot, and the underframe has a reset mechanism.

[0010] Preferably, the reset mechanism includes a support plate disposed on the underframe, and the support plate has a reset spring, and the other end of the reset spring is connected to the bottom end of the limiting frame.

[0011] As described above, due to the adoption of the above technical scheme, the utility model has the beneficial effects that:

[0012] The box girder roof frame has the following advantages: the staff manually operates the levers at both ends of the underframe in sequence, the toothed column is driven to rotate by the limiting mechanism, the limiting frame is moved in the sliding groove and the sliding slot by cooperating with the adjusting assembly, the multiple steel bars are close to the side wall of the placing slot in the same direction, the spacing between the adjacent steel bars is limited because the spacing between the multiple placing slots is fixed, the stress performance of the entire box girder roof structure is reduced due to the different spacing during the binding process, and the stability of the box girder roof is improved.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the perspective view of the utility model;

[0014] Figure 2 is the structure schematic view of the auxiliary fixing assembly of the utility model;

[0015] Figure 3 is the utility model Figure 2 of the A place enlarged view;

[0016] Figure 4 is the B place enlarged view of the utility model Figure 3 ;

[0017] Figure 5 is the explosion structure schematic view of the utility model Figure 2 ;

[0018] Figure 6 is the side view of the utility model Figure 5 ;

[0019] In the drawings, 1, the chassis; 2, the truss; 3, the support frame; 4, the placing rack; 5, the placing groove; 6, the limiting frame; 7, the limiting groove; 8, the sliding groove; 9, the sliding bar; 10, the sliding groove; 11, the rack; 12, the mounting seat; 13, the tooth column; 14, the movable slot; 15, the push rod; 16, the crossbar; 17, the intercepting block; 18, the transverse slot; 19, the sleeve; 20, the convex strip; 21, the clamping groove; 22, the support plate; 23, the return spring. DETAILED DESCRIPTION

[0020] To make the purpose, technical scheme and advantages of the utility model more clearly and clearly, the following preferred embodiments are referred to the drawings and are given, and the utility model is further explained in detail. However, it should be noted that many details listed in the specification are only to make the reader have a thorough understanding of one or more aspects of the utility model, and the aspects of the utility model can be realized even without these specific details.

[0021] Please refer to Figures 1 to 6 , the utility model provides a box girder roof rack, and the technical scheme is as follows:

[0022] Including chassis 1, multiple bottom frame 1 is sequentially arranged in order, and the upper end of multiple bottom frame 1 is symmetrically provided with two trusses 2 for connection, the upper end of multiple bottom frame 1 is symmetrically provided with two support frames 3, and each support frame 3 is located beside the truss 2, each support frame 3 is provided with a placing rack 4 on the outer side wall away from the truss 2 side, multiple placing grooves 5 are formed in each placing rack 4, and multiple placing grooves 5 on two placing racks 4 correspond to each other, and each support frame 3 is provided with an auxiliary fixing assembly.

[0023] The plurality of steels are sequentially placed in the plurality of placing grooves 5 on the two support frames 3, and the steels are generally bent into U-shape and then placed in the placing grooves 5 for binding operation. Before the binding operation, the two ends of the steels are fixed by the two auxiliary fixing assemblies in sequence, and the plurality of steels are close to the side walls of the placing grooves 5 in the same direction. Since the spacing between the plurality of placing grooves 5 is fixed, the spacing between the adjacent steels is limited, so that the stress performance of the whole box girder top plate structure is reduced due to the different spacing in the binding process, and the stability of the box girder top plate is improved.

[0024] The auxiliary fixing assembly comprises a limiting frame 6 arranged at one end of the support frame 3 close to the truss 2, a plurality of limiting grooves 7 are formed in the limiting frame 6, and the limiting grooves 7 correspond to the placing grooves 5, a sliding groove 8 is formed in the support frame 3 close to one end of the limiting frame 6, a sliding strip 9 is arranged on the limiting frame 6 and is in sliding connection with the sliding groove 8, and a sliding groove 10 is formed in the top of each base frame 1, and the limiting frame 6 is arranged in the plurality of sliding grooves 10. An adjusting mechanism is arranged at the bottom of the limiting frame 6.

[0025] In the initial state, the limiting grooves 7 and the placing grooves 5 are arranged in parallel. After the steels are sequentially placed in the plurality of placing grooves 5 and the limiting grooves 7, the staff manually operates the adjusting mechanism to drive the limiting frame 6 to slide in the sliding groove 10, and the sliding strip 9 slides in the sliding groove 8. Due to the size problem of the limiting grooves 7 and the placing grooves 5, the moving range of the limiting frame 6 is small, and the limiting grooves 7 and the placing grooves 5 are misaligned, that is, the limiting grooves 7 drive the steels to closely contact the side walls of the placing grooves 5, and then the binding operation is performed, so that the spacing deviation between the adjacent steels is avoided, and the stability is improved.

[0026] The adjusting mechanism comprises a rack 11 arranged at the left lower end of the support frame 3, an installation seat 12 is arranged on the inner side wall of the left end of the base frame 1, a tooth column 13 engaged with the rack 11 is arranged on the installation seat 12 through a rotating shaft, a movable groove 14 is formed in the base frame 1, a pushing rod 15 is arranged on the side of the installation seat 12 and is connected with the rotating shaft, the pushing rod 15 extends outward through the movable groove 14, and a limiting mechanism is arranged on the installation seat 12.

[0027] The staff manually presses down the pushing rod 15, drives the tooth column 13 to rotate through the pushing rod 15, and then drives the support frame 3 to move through the rack 11, so that the steels in the plurality of limiting grooves 7 closely contact the side walls of the corresponding placing grooves 5. Then the pushing rod 15 is fixed by the limiting mechanism, and then the binding operation is performed. When the binding is completed, the pushing rod 15 is limited by the limiting mechanism, that is, the binding operation of the steels is completed at this time.

[0028] The limiting mechanism comprises a crossbar 16 arranged on the mounting base 12 and coaxially connected with the rotating shaft, the crossbar 16 is provided with an intercepting block 17 at the end, a plurality of transverse slots 18 are arranged on the circumference of the crossbar 16, a sleeve 19 is arranged on the crossbar 16, a plurality of convex strips 20 are arranged on the inner circumferential wall of the sleeve 19, each convex strip 20 slides in the corresponding transverse slot 18, the knob 15 is connected on the outer circumference of the sleeve 19, the movable slot 14 is provided with a clamping slot 21, and the bottom frame 1 is provided with a reset mechanism.

[0029] After the staff presses the knob 15, the knob 15 is pushed into the clamping slot 21 by moving laterally, in the process, the plurality of convex strips 20 slide in the corresponding transverse slots 18, and the existence of the convex strips 20 can ensure that the knob 15 can stably pass through the sleeve 19, the crossbar 16 and the rotating shaft to drive the gear column 13 to rotate; after the binding is completed, the staff manually moves the knob 15 out of the clamping slot 21, and under the action of the reset mechanism, the knob 15 rotates upwardly and resets, preparing for the next binding operation.

[0030] The reset mechanism comprises a supporting plate 22 arranged on the bottom frame 1, the supporting plate 22 is provided with a reset spring 23, and the other end of the reset spring 23 is connected with the bottom end of the limiting frame 6; the supporting frame 3 drives the reset spring 23 to elongate while assisting in fixing the reinforcing steel bars, after the staff manually moves the knob 15 out of the clamping slot 21, the reset spring 23 drives the supporting frame 3 to slowly reset under the action of the elastic force, and then the gear rack 11, the gear column 13 and the crossbar 16 drive the knob 15 to slowly reset, preparing for the next binding operation.

[0031] The above is only the preferred embodiment of the present application, it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A box girder roof shelf, characterized by, Include: The chassis (1), a plurality of said chassis (1) are sequentially arranged in order, and the upper end of the plurality of chassis (1) is symmetrically provided with two trusses (2) for connection, the upper end of the plurality of said chassis (1) is symmetrically provided with two support frames (3), and each support frame (3) is located beside the truss (2), each said support frame (3) is provided with a placing frame (4) on the outer side wall away from the truss (2) side, a plurality of placing grooves (5) are formed in each said placing frame (4), and a plurality of placing grooves (5) are formed in each said placing frame (4). Corresponding to each other, an auxiliary fixing assembly is arranged on each said support frame (3).

2. A roof deck shelf for a box girder according to claim 1, characterised in that: The auxiliary fixing assembly comprises a limiting frame (6) arranged on the support frame (3) close to one end of the truss (2), a plurality of limiting grooves (7) are formed in the limiting frame (6), and the limiting grooves (7) correspond to the placing grooves (5), a sliding groove (8) is formed in the support frame (3) close to one end of the limiting frame (6), a sliding bar (9) is arranged on the limiting frame (6), and the sliding bar (9) is connected with the sliding groove (8) in sliding mode, a sliding groove (10) is formed in the top of each said chassis (1), and the limiting frame (6) is arranged in the plurality of sliding grooves (10), and the limiting frame (6) is provided with an adjusting mechanism.

3. A roof deck shelf for a box girder according to claim 2, wherein: The adjusting mechanism comprises a rack (11) arranged on the left lower end of the support frame (3), and a mounting seat (12) is arranged on the inner side wall of the left end of the chassis (1), a toothed column (13) engaged with the rack (11) is arranged on the mounting seat (12) through a rotating shaft, an activity groove (14) is formed in the chassis (1), a push rod (15) is arranged on the side of the mounting seat (12), and the push rod (15) is connected with the rotating shaft, the push rod (15) extends outward through the activity groove (14), and a limiting mechanism is arranged on the mounting seat (12).

4. A roof deck shelf for a box girder according to claim 3, wherein: The limiting mechanism comprises a cross bar (16) arranged on the mounting seat (12), and the cross bar (16) is coaxially connected with the rotating shaft, an intercepting block (17) is arranged at the end of the cross bar (16), a plurality of transverse grooves (18) are formed in the circumference of the cross bar (16), a sleeve (19) is arranged on the cross bar (16), a plurality of convex strips (20) are formed in the inner ring wall of the sleeve (19), each convex strip (20) slides in the corresponding transverse groove (18), the push rod (15) is connected on the outer circumference of the sleeve (19), a clamping groove (21) is arranged in the activity groove (14), and a reset mechanism is arranged on the chassis (1).

5. A roof deck shelf for a box girder according to claim 4, wherein: The reset mechanism comprises a support plate (22) arranged on the chassis (1), a reset spring (23) is arranged on the support plate (22), and the other end of the reset spring (23) is connected with the bottom end of the limiting frame (6).

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