A mobile bridge temporary support removal passage device and method of use

Abstract

The application discloses a kind of mobile bridge temporary support removal passage device and use method, wherein device includes two load-bearing beams across median strip, two load-bearing beams are parallel to each other and are located above guardrail, the bottom of load-bearing beam is provided with auxiliary device capable of supporting it to move on bridge deck along the direction of extension of median strip, two first connecting rods parallel to the direction of extension of median strip are detachably arranged between two load-bearing beams, a lifting point connecting beam located directly above median strip is fixedly connected to two first connecting rods, a removal passage is installed on the bottom of lifting point connecting beam by support, an I-steel joist is arranged at the bottom of removal passage, a horizontal passage is fixedly arranged on I-steel joist, and a vertical ladder is arranged on horizontal passage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge engineering, and in particular to a mobile bridge temporary support removal passage device and a use method. BACKGROUND

[0002] In the process of erecting precast box girder and T girder, a process is often used according to different design concepts: first, a temporary support is set on the top of the pier, and then the precast box girder and T girder are erected on the temporary support. After the wet joint, wet hinge joint, negative bending moment tensioning and grouting processes are completed, the temporary support is removed, and the system conversion is completed. In the process of system conversion, the temporary support needs to be removed in advance. Since the bridge support is relatively high from the ground, and some bridges cross rivers or seas, the use of simple ladders cannot meet the construction requirements. The use of scaffolding or large machinery and ships for hoisting operations not only has high cost and safety risks, but also affects the construction progress.

[0003] The load-bearing beam and the hoisting point connecting beam of the existing mobile bridge temporary support removal passage device are fixed by welding, and there is a technical problem of inconvenient disassembly. SUMMARY

[0004] To solve the technical problems proposed in the background, the present application provides a mobile bridge temporary support removal passage device and a use method.

[0005] The present application adopts the following technical scheme: a mobile bridge temporary support removal passage device, comprising two load-bearing beams that span the central reservation, the two load-bearing beams are parallel to each other and are located above the guardrails, the bottom of the load-bearing beam is provided with an auxiliary device capable of supporting the load-bearing beam to move along the extension direction of the central reservation on the bridge deck, two first connecting rods parallel to the extension direction of the central reservation are detachably arranged between the two load-bearing beams, a hoisting point connecting beam located directly above the central reservation is jointly sleeved and fixed on the two first connecting rods, a removal passage is installed on the bottom of the hoisting point connecting beam through a support, an I-steel joist is arranged at the bottom of the removal passage, a horizontal passage is fixedly arranged on the I-steel joist, and a vertical ladder is arranged on the horizontal passage.

[0006] As a further improvement of the above-mentioned scheme, inclined rods are arranged at both ends of the horizontal passage, and the top portions of the two inclined rods are arranged on the outer walls of the support, respectively.

[0007] As a further improvement of the above-mentioned scheme, a second insertion hole is formed in the hoisting point connecting beam, and the first connecting rod is inserted and fixed in the second insertion hole.

[0008] As a further improvement of the above-mentioned scheme, the length of the load-bearing beam is greater than the distance between the two guardrails.

[0009] As a further improvement of the above-mentioned scheme, a first insertion hole is formed in the load-bearing beam for the first connecting rod to pass through and be fixed.

[0010] As a further improvement of the above-mentioned scheme, the auxiliary device comprises two support rods, which are respectively located on both sides of the central divider belt in the extension direction and at the bottom of the load-bearing beam, and a wheel set is mounted on the bottom of each end of the support rod through a bracket, a seat groove is formed in the top of each side of the support rod, a positioning seat for clamping the corresponding load-bearing beam is inserted into the seat groove, and a positioning mechanism is arranged on the positioning seat, which can lock and fix the positioning seat in the seat groove when the load-bearing beam is clamped on the positioning seat.

[0011] As a further improvement of the above-mentioned scheme, a clamping groove is formed in the top of the positioning seat for clamping the bottom of the load-bearing beam, and an insertion block is arranged in the clamping groove, and an insertion slot matched with the insertion block is formed in the bottom of the load-bearing beam.

[0012] As a further improvement of the above-mentioned scheme, the positioning mechanism comprises a first cylinder arranged in the inner wall of the positioning seat, a second connecting rod is inserted into the top of the first cylinder, the top of the second connecting rod extends into the clamping groove and is fixed at the bottom of the insertion block, a first spring is sleeved on the outer side of the second connecting rod, and the two ends of the first spring are connected to the bottom of the insertion block and the groove bottom wall of the clamping groove, respectively, a recess in the shape of a spiral line is axially formed in the inner wall of the top of the first cylinder, a protrusion matched with the recess for sliding clamping is arranged on the outer wall of the second connecting rod close to the bottom, a screw is slidingly clamped in the bottom of the first cylinder in a concentric manner, a screw hole matched with the screw is formed in the groove bottom wall of the seat groove, and a second spring is arranged between the top of the screw and the inner bottom wall of the first cylinder.

[0013] As a further improvement of the above-mentioned scheme, a second clamping rod is slidingly clamped in the load-bearing beam along the axial direction, a slanted hole matched with the first connecting rod for pressing contact is formed in the outer wall of one end of the second clamping rod close to the first insertion hole, and a second clamping hole matched with the other end of the second clamping rod is formed in the insertion block.

[0014] The application also provides a use method of the mobile bridge temporary support removal channel device.

[0015] S1, two load-bearing beams are arranged across the central divider belt and are mounted on the auxiliary device;

[0016] S2, the lifting point connecting beam is arranged between the two load-bearing beams and directly above the central divider belt, the two first connecting rods are respectively fixed on the two load-bearing beams, and the two ends of the lifting point connecting beam are respectively sleeved on the two first connecting rods;

[0017] S3, install support, I-beam support, horizontal passage in turn on the bottom of the hoisting point connection beam, and install vertical ladder on the horizontal passage.

[0018] Compared with the prior art, the application has the beneficial effects that:

[0019] The mobile bridge temporary support removal passage device of the application first detachably installs the first connecting rod on the load-bearing beam, then fixes the hoisting point connection beam on the first connecting rod by sleeving, to complete the installation between the load-bearing beam and the hoisting point connection beam, and the subsequent removal is also convenient. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a partial top view structural schematic diagram of the device as a whole;

[0021] Figure 2 It is a partial front view structural schematic diagram of the device; Figure 1

[0022] Figure 3 It is a partial cross-sectional structural schematic diagram of the load-bearing beam in a locked and fixed state on the support rod; Figure 1

[0023] Figure 4 It is a partial cross-sectional structural schematic diagram of the positioning seat inserted on the support rod; Figure 3

[0024] Figure 5 It is a partial top view structural schematic diagram of the load-bearing beam; Figure 1

[0025] Figure 6 It is a flow chart of the use method of the application.

[0026] MAIN SYMBOL EXPLANATION:

[0027] 1, central divider; 2, guardrail; 3, load-bearing beam; 4, first insertion hole; 5, first connecting rod; 6, hoisting point connection beam; 7, second insertion hole; 8, support; 9, horizontal passage; 10, vertical ladder; 11, inclined pull rod; 12, support rod; 13, caster group; 14, seat groove; 15, positioning seat; 16, clamping groove; 17, insertion groove; 18, insertion block; 19, first cylinder; 20, second connecting rod; 21, protruding block; 22, recess; 23, screw rod; 24, screw hole; 25, ear block; 26, positioning rod; 27, positioning hole; 28, first bevel gear; 29, first fixed plate; 30, second cylinder; 31, first clamping rod; 32, second fixed plate; 33, telescopic rod; 34, first clamping hole; 35, second bevel gear; 36, second clamping rod; 37, inclined hole; 38, second clamping hole. DETAILED DESCRIPTION

[0028] ​​​​Hereinafter, the present application will be further described in conjunction with the drawings and specific embodiments, it should be noted that the following described embodiments or technical features can be combined arbitrarily to form new embodiments without conflict.

[0029] Embodiment 1

[0030] Please combine Figures 1 to 5 The mobile bridge temporary support removal passage device comprises two load-bearing beams 3 crossing the central divider 1, the two load-bearing beams 3 are parallel to each other and are located above the guardrails 2, the bottom of the load-bearing beam 3 is provided with an auxiliary device capable of supporting the load-bearing beam 3 to move on the bridge deck in the extension direction of the central divider 1, and two first connecting rods 5 parallel to the extension direction of the central divider 1 are detachably arranged between the two load-bearing beams 3.

[0031] The two first connecting rods 5 are jointly sleeved and fixed with a lifting point connecting beam 6 located directly above the central divider 1, and the passage device can be lifted and transported through the lifting point connecting beam 6 and the vertical support force of the load-bearing beam 3 is strengthened.

[0032] The lifting point connecting beam 6 is provided at the bottom with a removal passage through the support 8, the bottom of the removal passage is provided with an I-steel joist, the I-steel joist is fixedly provided with a horizontal passage 9, and the horizontal passage 9 is provided with a vertical ladder 10.

[0033] The horizontal passage 9 is provided at both ends with a diagonal pull rod 11, and the top of the two diagonal pull rods 11 is arranged on the outer wall of the support 8 on both sides. The diagonal pull rod 11 can strengthen the overall structural stability of the device and achieve a certain wind resistance effect.

[0034] The lifting point connecting beam 6 is provided with a second insertion hole 7 for the first connecting rod 5 to pass through and be fixed. The second insertion hole 7 can facilitate the through fastening between the first connecting rod 5 and the lifting point connecting beam 6.

[0035] The length of the load-bearing beam 3 is greater than the distance between the two guardrails 2. In order to make the passage device not be affected by the pre-embedded steel bars of the guardrail 2, the length of the load-bearing beam 3 is greater than the distance between the inner sides of the guardrails 2 at the central divider 1.

[0036] The load-bearing beam 3 is provided with a first insertion hole 4 for the first connecting rod 5 to pass through and be fixed. The first insertion hole 4 can facilitate the through fastening between the load-bearing beam 3 and the first connecting rod 5.

[0037] The auxiliary device comprises two support rods 12, which are respectively located on both sides of the central divider 1 in the extending direction of the central divider 1 and at the bottom of the load-bearing beam 3. The bottom of each end of the support rod 12 is provided with a foot wheel set 13 through a bracket (not shown in the figure). The top of the support rod 12 is provided with a seat groove 14 on both sides. A positioning seat 15, which can be clamped with the corresponding load-bearing beam 3, is inserted into the seat groove 14. The positioning seat 15 is provided with a positioning mechanism. When the load-bearing beam 3 is clamped on the positioning seat 15, the positioning mechanism can lock and fix the positioning seat 15 in the seat groove 14.

[0038] The top of the positioning seat 15 is provided with a clamping groove 16, which can clamp the bottom of the load-bearing beam 3. The clamping groove 16 is provided with an insertion block 18. The bottom of the load-bearing beam 3 is provided with an insertion groove 17, which is matched with the insertion block 18.

[0039] The positioning mechanism comprises a first cylinder 19 arranged in the inner wall of the positioning seat 15. The top of the first cylinder 19 is provided with a second connecting rod 20. The top of the second connecting rod 20 extends into the clamping groove 16 and is fixed at the bottom of the insertion block 18. The outer side of the second connecting rod 20 is provided with a first spring (not marked). The two ends of the first spring are respectively connected to the bottom of the insertion block 18 and the groove bottom wall of the clamping groove 16. When the load-bearing beam 3 is clamped into the clamping groove 16 and the insertion block 18 is inserted into the insertion groove 17, the first spring is in a compressed deformation state.

[0040] The inner bottom wall of the first cylinder 19 is axially provided with a recess 22 in the shape of a spiral line. The outer wall near the bottom of the second connecting rod 20 is provided with a protrusion 21 which is slidably connected with the recess 22. The bottom of the first cylinder 19 is provided with a screw rod 23 which is slidably connected with the first cylinder 19. The groove bottom wall of the seat groove 14 is provided with a screw hole 24 which is matched with the screw rod 23.

[0041] The second spring (not marked) is arranged between the top of the screw rod 23 and the inner bottom wall of the first cylinder 19. Through the second spring, the bottom of the screw rod 23 can always be kept in a state of being tightly pressed at the screw hole 24.

[0042] The second clamping rod 36 is slidably arranged in the load-bearing beam 3 along the axial direction. The outer wall of one end of the second clamping rod 36 near the first insertion hole 4 is provided with an inclined hole 37 which is in contact with the first connecting rod 5. The insertion block 18 is provided with a second clamping hole 38 which is matched with the other end of the second clamping rod 36.

[0043] When the first connecting rod 5 is inserted through the first insertion hole 4, the first connecting rod 5 will press the hole wall of the inclined hole 37, forcing the second clamping rod 36 to move towards the insertion block 18, so that the second clamping rod 36 is clamped into the second clamping hole 38, realizing the mutual fixation between the load-bearing beam 3 and the insertion block 18.

[0044] The inside of the load-bearing beam 3 is provided with a cushion block (not indicated), and the cushion block is provided with a third spring (not indicated) on the side away from the one end of the insertion block 18. When the second clamping rod 36 is clamped into the second clamping hole 38, the third spring is in a tensile deformation state.

[0045] In summary, the assembly method of the auxiliary device of the embodiment is as follows:

[0046] First, the positioning seat 15 is placed in the corresponding seat groove 14 at the top of the support rod 12, so that the positioning rod 26 is inserted into the positioning hole 27. Then, the load-bearing beam 3 is placed in the clamping groove 16 at the top of the positioning seat 15, during which the insertion block 18 is inserted into the insertion groove 17. When the insertion block 18 is completely inserted into the insertion groove 17 (the position of the second clamping hole 38 corresponds to the second clamping rod 36 inside the load-bearing beam 3), the top of the insertion block 18 is subjected to a downward pressure from the top wall inside the insertion groove 17, so that the second connecting rod 20 is vertically moved downward to make the protruding block 21 frictionally and pressingly contact the groove wall of the spiral groove 22, thereby forcing the first cylinder 19 and the screw rod 23 to rotate in one direction, so that the bottom of the screw rod 23 is screwed into the threaded hole 24, and the effective fixation of the positioning seat 15 in the seat groove 14 is completed, that is, the positioning and fixation of the load-bearing beam 3 on the support rod 12 are completed.

[0047] Subsequently, the hanging point connecting beam 6 is hung between the two load-bearing beams 3 and located directly above the central separation belt 1, and the first connecting rod 5 penetrates the first insertion hole 4 and the second insertion hole 7 of the load-bearing beam 3, thereby completing the positioning and fixation of the load-bearing beam 3 on the load-bearing beam 3. During this process, the first connecting rod 5 will press the inclined hole 37 when it passes through the first insertion hole 4, thereby forcing the second clamping rod 36 to be clamped into the second clamping hole 38 of the insertion block 18, achieving the mutual fixation between the load-bearing beam 3 and the insertion block 18, that is, achieving the common fixation between the load-bearing beam 3, the support rod 12, the first connecting rod 5, and the hanging point connecting beam 6, so that the load-bearing beam 3, the support rod 12, the first connecting rod 5, and the hanging point connecting beam 6 form a stable whole.

[0048] Further, the first taper gear 28 is fixedly sleeved outside the first cylinder 19, the first fixed plate 29 is arranged inside the positioning seat 15, the second cylinder 30 is rotatably inserted into the first fixed plate 29, the second taper gear 35 is arranged at one end of the second cylinder 30 and matched with the first taper gear 28, and the first clamping rod 31 is threadedly inserted into the other end of the second cylinder 30. The second fixed plate 32 is fixedly sleeved outside the first clamping rod 31, and the telescopic rod 33 is arranged between the first fixed plate 29 and the second fixed plate 32.

[0049] The positioning seat 15 is provided with the ear block 25 on the opposite side, the bottom of each ear block 25 is provided with the positioning rod 26, the top of the support rod 12 is provided with the positioning hole 27 for inserting the positioning rod 26, and the positioning rod 26 is provided with the first clamping hole 34 matched with the first clamping rod 31.

[0050] When the first cylinder 19 rotates unidirectionally, the first cylinder 19 drives the first bevel gear 28, the second bevel gear 35 and the second cylinder 30 to rotate, so that the second cylinder 30 and the first clamping rod 31 are in threaded action, and the first clamping rod 31 is axially extended from the first cylinder 19 to be clamped into the first clamping hole 34 of the positioning rod 26 under the limiting action of the telescopic rod 33, so that the installation of the positioning seat 15 in the seat groove 14 is more stable, thereby improving the overall stability of the device installation, and the disassembly is efficient and convenient.

[0051] Embodiment 2

[0052] Please combine Figure 6 The embodiment provides a use method of the mobile bridge temporary support removal channel device applied to the embodiment 1.

[0053] S1, the two load-bearing beams 3 are placed across the central divider 1 and are installed on the auxiliary device.

[0054] S2, the lifting point connecting beam 6 is placed between the two load-bearing beams 3 and suspended directly above the central divider 1, the two first connecting rods 5 are respectively penetrated and fixed on the two load-bearing beams 3, and the two ends of the lifting point connecting beam 6 are respectively sleeved on the two first connecting rods 5.

[0055] S3, the bracket 8, the I-beam and the horizontal channel 9 are sequentially installed at the bottom of the lifting point connecting beam 6, and the vertical ladder 10 is installed on the horizontal channel 9.

[0056] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application, and any non-essential changes and replacements made by those skilled in the art on the basis of the present application all belong to the scope of protection of the present application.

Claims

1. A mobile bridge temporary support removal access device, characterized in that, The utility model provides a kind of movable barrier for central reservation, including two load-bearing beams across central reservation, two described load-bearing beams are parallel with each other and are located above guardrail, the bottom of the load-bearing beam is provided with auxiliary device capable of supporting its movement along the central reservation extension direction on bridge deck, two described load-bearing beams are detachably provided with two first connecting rods parallel with the central reservation extension direction, two described first connecting rods are jointly sleeved and fixed with the lifting point connecting beam located directly above central reservation, the bottom of the lifting point connecting beam is installed with removal passageway by support, the bottom of the removal passageway is provided with I-steel joist, the I-steel joist is fixedly provided with horizontal passageway, the horizontal passageway is provided with vertical ladder; First insertion hole is formed in the load-bearing beam, and the first insertion hole is used for the first connecting rod to pass through and be fixed; The auxiliary device includes two support rods, the two support rods are located on both sides of the central reservation extension direction and at the bottom of the load-bearing beam, the bottom of the both ends of the support rod is installed with a truck wheel group by bracket, the both sides of the top of the support rod are provided with seat groove, the seat groove is inserted with the positioning seat for clamping the corresponding load-bearing beam, the positioning seat is provided with positioning mechanism, when the load-bearing beam is clamped on the positioning seat, the positioning mechanism can complete the locking and fixing of the positioning seat in the seat groove; The top of the positioning seat is provided with clamping groove for clamping the bottom of the load-bearing beam, the clamping groove is provided with an insertion block, and the bottom of the load-bearing beam is provided with an insertion slot matched with the insertion block; The positioning mechanism includes a first cylinder arranged in the inner wall of the positioning seat, a second connecting rod is inserted into the top of the first cylinder, the top of the second connecting rod extends into the clamping groove and is fixed at the bottom of the insertion block, a first spring is sleeved outside the second connecting rod, and the both ends of the first spring are connected to the bottom of the insertion block and the groove bottom wall of the clamping groove respectively, a recess in the shape of a spiral is axially formed in the inner wall of the top of the first cylinder, a protrusion is arranged on the outer wall of the second connecting rod close to the bottom, and the protrusion is slidably connected with the recess, a screw rod is slidably connected with the bottom of the first cylinder, a screw hole matched with the screw rod is formed in the groove bottom wall of the seat groove, and a second spring is arranged between the top of the screw rod and the inner bottom wall of the first cylinder; A second clamping hole matched with the other end of the second clamping rod is formed in the insertion block, and an inclined hole matched with the first connecting rod is formed in the outer wall of the one end of the second clamping rod close to the first insertion hole. A first bevel gear is fixedly sleeved outside the first cylinder, a first fixed plate is arranged in the inner wall of the positioning seat, a second cylinder is rotatably inserted into the first fixed plate, a second bevel gear matched with the first bevel gear is arranged at one end of the second cylinder, a first clamping rod is threadedly inserted into the other end of the second cylinder, a second fixed plate is fixedly sleeved outside the first clamping rod, and an extension rod is arranged between the second fixed plate and the first fixed plate. Ear blocks are arranged on both sides of the positioning seat, positioning rods are arranged at the bottom of the two ear blocks, positioning holes for inserting the positioning rods are formed in the top of the support rod, and first clamping holes matched with the first clamping rod are formed in the positioning rods.

2. The mobile bridge temporary support removal access device of claim 1, wherein, The horizontal passage is provided with two oblique pull rods at both ends, and the top of each oblique pull rod is arranged on the outer wall of the support.

3. The mobile bridge temporary support removal access device of claim 1, wherein, The second insertion hole is arranged on the lifting point connecting beam and can be penetrated by the first connecting rod.

4. The mobile bridge temporary support removal access device of claim 1, wherein, The length of the load-bearing beam is greater than the distance between the two guardrails.

5. A method of using the mobile bridge temporary support removal access device of claim 1, wherein, The method comprises the following steps: S1, placing two load-bearing beams across the central divider and mounting them on the auxiliary device; S2, placing the lifting point connecting beam between the two load-bearing beams and above the central divider, penetrating and fixing the two first connecting rods on the two load-bearing beams, and sleeving the ends of the lifting point connecting beam on the two first connecting rods; S3, sequentially mounting the support, the I-steel joist and the horizontal passage on the bottom of the lifting point connecting beam, and mounting the vertical ladder on the horizontal passage.

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