Retrogradation system after conversion of front fulcrum hanging basket walking system

Abstract

The utility model discloses a converse running system after conversion of a front fulcrum hanging basket running system, which comprises a hanging basket body, a running track mechanism and a C-shaped hanging leg, the top of the C-shaped hanging leg is mounted on the running track mechanism, and the bottom of the C-shaped hanging leg is correspondingly and fixedly connected with the left side and the right side of the hanging basket body. The C-shaped hanging leg comprises C-shaped trusses which are arranged at intervals in the front-back direction and a horizontal cross frame which is connected with the tops of the C-shaped trusses; the walking track mechanism comprises a plurality of sections of steel rails which are connected end to end and are longitudinally laid on the top surface of the bridge, two hanging leg butt joint seats which are spaced front and back and are in one-to-one correspondence with the mounting seats up and down, and a hydraulic jack of which the telescopic end is connected with the hanging leg butt joint seat located on the rear side and provides pushing force, and the hanging leg butt joint seats are connected through connecting rods; the hanging basket has the advantages that the hanging basket body moves stably, potential safety hazards are reduced, the occupied size is small, the construction space utilization rate is increased, and the application range is wide.

Description

Technical Field

[0001] The utility model belongs to the technical field of front fulcrum hanging basket walking system, and in particular relates to a retrograde system after the front fulcrum hanging basket walking system is converted. Background Art

[0002] After the construction of the middle span of the bridge is completed, the front support basket needs to be dismantled. The usual way to deal with this is to directly lower the basket as a whole to the ground or water surface. However, if there are buildings or a river with turbulent water under the bridge, the difficulty and risk of directly lowering the basket will increase significantly. Especially when the basket is large and needs to be lowered to the river surface as a whole, the positioning and anchoring requirements of the ship are extremely high, and there are great safety risks. Therefore, the front support basket is usually returned to the side of the pier and can be directly lowered to the flat ground.

[0003] At present, the following three systems are usually used for front fulcrum hanging basket walking:

[0004] 1) The first type is the rail mechanism, the walking trolley connecting the basket and the rail system, and the jack (or hoist) that provides power for movement. The installation and use of the jack system require high technical requirements. When the overall lowering is carried out in the middle span area, there is a high safety risk. The force and balance need to be strictly controlled during the operation, otherwise there will be a risk of tilting or offsetting the basket. The overall equipment is cumbersome, the process operation is complicated, and it will not run smoothly when there are many obstacles on the top surface of the bridge.

[0005] 2) The second method is to connect the basket to the track through a crawling device and a hook system, and use the hook to drive the basket to move along the track; the installation of the crawling device and the hook system is complicated, requiring high precision and complex technology, taking up more construction space, affecting other construction operations, and resulting in low construction efficiency. The installation and debugging of the hook system and the crawling device require high precision and technology, and strict monitoring is required during the operation. Otherwise, the basket may easily become unstable during the movement process, causing the basket to tilt or shift, posing a safety hazard.

[0006] 3) The third type of manual hoist is connected to the "C" beam through a guide chain and a hook. The basket is lifted or lowered by the manual hoist and moved along the track. There are many operating steps, especially when lifting or lowering the basket. Each step needs to be precisely controlled to avoid tilting or unstable movement of the basket. The operation time is long, the equipment is heavy and large in size, and occupies a large space, which increases the difficulty and cost of construction and limits the operating environment. Utility Model Content

[0007] The utility model aims to provide a retrograde system after the front fulcrum hanging basket walking system is converted, the hanging basket body moves smoothly, and the hanging basket is efficiently retracted and dismantled, so as to solve the problems of the current hanging basket walking system being cumbersome to operate, high operating requirements, poor environmental applicability, and the hanging basket being tilted or moving unsteadily.

[0008] To this end, the technical solution adopted by the utility model is: a retrograde system after the conversion of the front fulcrum hanging basket walking system, including a hanging basket body located at the bottom of the bridge, a walking track mechanism symmetrically arranged longitudinally and sideways, and a "C"-shaped hanging leg with left and right mirror symmetry, the top of the "C"-shaped hanging leg is installed on the walking track mechanism, and the bottom is fixedly connected to the left and right sides of the hanging basket body accordingly, so as to move synchronously with the hanging basket body, the "C"-shaped hanging leg includes a "C"-shaped truss arranged at intervals in front and behind and a horizontal cross frame connected to the top of the "C"-shaped truss, and the horizontal truss at the top of the "C"-shaped truss A mounting seat is provided at the inner end, and the walking track mechanism includes a plurality of sections of steel rails connected end to end and longitudinally laid on the top surface of the bridge, two hanging leg docking seats spaced front and back and corresponding to the mounting seats one by one up and down, and a hydraulic jack whose telescopic end is connected to the hanging leg docking seat located on the rear side and provides a driving force. The hanging leg docking seats are connected by connecting rods, and the fixed end of the hydraulic jack is installed on the steel rail through a jack base. When the hydraulic jack cylinder pushes the hanging leg docking seat to move along the steel rail when it is extended and retracted, the "C"-shaped hanging leg is driven to move horizontally forward and backward as a whole through the mounting seat, thereby realizing the walking of the hanging basket body.

[0009] As a preferred embodiment of the above scheme, the rail is made of three sections, the front end of the rail is provided with a connecting support plate, and the connecting support plate is provided with a front end pin hole, the rear end of the rail is provided with a rear end pin hole with the same height and matching size as the front end pin hole, and is equipped with a pin shaft. When the "C"-shaped hanging leg is pushed to the front end of the first section of the rail by the hydraulic jack, it is necessary to jack up the "C"-shaped hanging leg, detach the hanging leg docking seat and the hydraulic jack, and then remove the last section of the rail and move it in front of the first section of the rail to become the new first section of the rail. The cycle is repeated. Since the top surface of the bridge is very long, this can effectively reduce the number of rails used and reduce costs.

[0010] Further preferably, the horizontal cross frame is constructed by horizontal and vertical diagonal rods to form a triangular frame structure, which has strong stability and reasonable design structure.

[0011] Further preferably, a slide groove is provided on the top of the rail, and a roller rolling along the slide groove is provided on the bottom of the hanging leg docking seat, and the design structure is reasonable.

[0012] Further preferably, a slider is provided at the bottom of the hanging leg docking seat, which is in contact with the upper end surface of the rail and moves along the rail. The width of the slider is greater than the width of the upper end surface of the rail, and the left and right edges of the bottom of the slider are provided with inverted "L"-shaped limit baffles for lateral limitation of the slider, ensuring that the slider can only slide along the rail and avoid sliding out of the rail to the left or right. The design structure is reasonable.

[0013] Further preferably, a layer of lubricating butter is applied to the contact surface between the slider and the upper end surface of the rail to ensure that the resistance of the slider is small when sliding.

[0014] Further preferably, the mounting seat and the hanging leg docking seat can be connected by a snap-fit ​​connection. When the mounting seat is lowered, it is directly snapped with the hanging leg docking seat, which is convenient for installation. The mounting seat and the hanging leg docking seat can be separated by directly using a jack to lift up the hanging leg, which is convenient for disassembly.

[0015] Further preferably, the mounting seat and the leg-hanging docking seat can be connected by a pin shaft, which provides a stable connection and convenient installation and removal.

[0016] Further preferably, the jack base, the hydraulic jack, the hanging leg docking seat, and the docking ends of the connecting rod are all connected by pins, so the connection is stable and the installation is convenient.

[0017] Beneficial effects of the utility model:

[0018] (1) Compared with the current hanging basket walking system, which is cumbersome to operate, has high operating requirements, poor environmental adaptability, and the hanging basket is tilted or moves unsteadily, this scheme adopts a "C"-shaped hanging leg arranged in a mirror-symmetrical manner on the left and right sides so that the weight of the hanging basket is transferred to the track on the top surface of the bridge through the hanging legs. It can effectively ensure that the left and right forces of the hanging basket body are balanced, improve the stability of movement, avoid the complex operation and high risk of directly lowering it on the river surface or above the building, and move it to the side of the pier for dismantling and lowering it to a flat site, effectively eliminating the safety hazards when lowering it to the water surface, and the dismantling efficiency is high.

[0019] (2) This solution uses a hydraulic jack to push the leg docking seat along the rail. Compared with the current hanging basket walking system that requires multiple jacks and manual hoists, this solution effectively reduces equipment dependence, reduces equipment and maintenance costs, and reduces the time and labor costs of installation and commissioning. At the same time, the "C"-shaped legs buckled on the left and right sides of the bridge top surface can effectively avoid various obstacles on the bridge top surface, ensuring smooth and unobstructed operation, and occupying a small volume, will not affect other construction operations on the bridge top surface, and improve the space utilization rate of the construction site. The concept is novel and the design is ingenious.

[0020] (3) Several sections of rails are laid longitudinally on the top surface of the bridge end to end. When the "C"-shaped hanging leg is pushed to the front end of the first section of rail by a hydraulic jack, the last section of rail that has been traveled can be redirected to the front of the first section of rail, thereby extending the travel route. Since the top surface of the bridge is very long, this can effectively reduce the number of rails used and reduce costs. It is flexible to use according to the length of the top surface of the bridge and has a wide range of applications.

[0021] To sum up, the hanging basket has the advantages of stable movement of the main body, reduced safety hazards, small occupied volume, improved construction space utilization, and wide application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of the utility model installed on the top surface of the bridge.

[0023] Figure 2 It is a side view of the utility model.

[0024] Figure 3 It is a structural diagram of the walking track mechanism. DETAILED DESCRIPTION

[0025] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0026] Combination Figure 1 — Figure 3 As shown, a retrograde system after the conversion of the front fulcrum hanging basket walking system is composed of a hanging basket body 3 located at the bottom of the bridge 4, a walking track mechanism 2 symmetrically arranged longitudinally on the left and right, and a "C"-shaped hanging leg 1 with left and right mirror symmetry.

[0027] The top of the “C”-shaped hanging leg 1 is installed on the walking track mechanism 2, and the bottom is fixedly connected to the left and right sides of the hanging basket body 3 accordingly, so as to move synchronously with the hanging basket body 3.

[0028] The “C”-shaped hanging leg 1 is composed of a “C”-shaped truss 11 spaced apart in the front and rear and a horizontal cross frame 12 connecting the top of the “C”-shaped truss 11 .

[0029] The horizontal cross frame 12 is constructed by using horizontal and vertical diagonal rods to form a triangular frame structure.

[0030] A mounting seat 111 is provided at the inner end of the horizontal truss at the top of the “C”-shaped truss 11 .

[0031] The walking track mechanism 2 is composed of several sections of steel rails 21 connected end to end and laid longitudinally on the top surface of the bridge 4, two hanging leg docking seats 22 spaced front and back and corresponding to the mounting seat 111 one by one, and a hydraulic jack 23 whose telescopic end is connected to the hanging leg docking seat 22 located at the rear side and provides driving force.

[0032] The butt ends of the jack base 24, the hydraulic jack 23, the hanging leg butt seat 22 and the connecting rod 25 are all connected by pins.

[0033] A slide groove may be provided on the top of the rail 21, and a roller rolling along the slide groove may be provided on the bottom of the leg-hanging docking seat 22.

[0034] The rail 21 preferably has three sections. A connecting support plate 211 is provided at the front end of the rail 21, and the connecting support plate is provided with a front pin hole. A rear pin hole with the same height and matching size as the front pin hole is provided at the rear end of the rail 21, and a pin shaft is provided.

[0035] The mounting seat 111 and the leg-hanging docking seat 22 can be connected by snap-fit ​​connection.

[0036] The mounting seat 111 and the leg docking seat 22 can be connected by a pin

[0037] The leg-hanging docking seats 22 are connected via a connecting rod 25 .

[0038] The fixed end of the hydraulic jack 23 is installed on the rail 21 through a jack base 24 .

[0039] A slider can be provided at the bottom of the hanging leg docking seat 22, which fits with the upper end surface of the rail 21 and moves along the rail 21. The width of the slider is greater than the width of the upper end surface of the rail 21, and the left and right edges of the bottom of the slider are provided with inverted "L"-shaped limit baffles for lateral limitation of the slider. The contact surface between the slider and the upper end surface of the rail 21 is coated with a layer of lubricating butter.

[0040] When the hydraulic jack 23 extends and retracts, the hanging leg docking seat 22 is pushed to move along the rail 21, and the mounting seat 111 drives the "C"-shaped hanging leg 1 to move horizontally forward and backward as a whole, thereby realizing the movement of the hanging basket body 3.

[0041] When the "C"-shaped hanging leg 1 is pushed to the front end of the first section of the rail by the hydraulic jack, a lifting jack is needed to be placed on the top of the "C"-shaped hanging leg 1 and lift up the "C"-shaped hanging leg 1, and the mounting seat 111 and the hanging leg docking seat 22 are directly disengaged up and down.

[0042] Continue to disassemble the hanging leg docking seat 22 and the hydraulic jack 23, then remove the last section of the rail 21, move it to the front of the first section of the rail 21 to become the new first section of the rail 21, and repeat this cycle to extend the travel route.

[0043] When the hanging basket body 3 moves smoothly in reverse to the side of the pier, it can be lowered using a continuous jack. First, install the lowered steel strands, use the original anchoring system of the hanging basket body 3 to lower the bottom basket 15cm, and simultaneously lower the steel strands of the continuous jack. Then, lower the rolled threaded steel bars of the hanging basket body 3 by 20cm. After the top is anchored, use a continuous jack to try to lower it. After confirming that there are no faults in the lowering of the equipment, remove the hanging basket anchoring system and start lowering the bottom basket of the hanging basket.

Claims

1. A retrograde system after the front fulcrum hanging basket walking system is converted, characterized in that: The invention comprises a hanging basket body (3) located at the bottom of a bridge (4), a walking track mechanism (2) symmetrically arranged longitudinally and sideways, and a "C"-shaped hanging leg (1) symmetrically arranged longitudinally and sideways, wherein the top of the "C"-shaped hanging leg (1) is installed on the walking track mechanism (2), and the bottom is fixedly connected to the left and right sides of the hanging basket body (3) correspondingly, so as to move synchronously with the hanging basket body (3), the "C"-shaped hanging leg (1) comprises a "C"-shaped truss (11) arranged at intervals in front and back, and a horizontal cross frame (12) connected to the top of the "C"-shaped truss (11), and the inner end of the horizontal truss at the top of the "C"-shaped truss (11) is provided with a mounting seat (111), and the walking track mechanism (2) comprises a plurality of longitudinal sections connected end to end. A steel rail (21) is laid on the top surface of the bridge (4), two hanging leg docking seats (22) spaced front and back and corresponding to the mounting seat (111) one by one, and a hydraulic jack (23) whose telescopic end is connected to the hanging leg docking seat (22) located at the rear side and provides a driving force. The hanging leg docking seats (22) are connected by a connecting rod (25), and the fixed end of the hydraulic jack (23) is installed on the steel rail (21) through a jack base (24). When the hydraulic jack (23) cylinder is extended and retracted, the hanging leg docking seat (22) is pushed to move along the steel rail (21), and the "C"-shaped hanging leg (1) is driven to move horizontally forward and backward as a whole through the mounting seat (111), thereby realizing the walking of the hanging basket body (3).

2. The reverse travel system after the front fulcrum hanging basket walking system is converted according to claim 1, characterized in that: The steel rail (21) is provided with three sections. The front end of the steel rail (21) is provided with a connecting support plate (211), and the connecting support plate is provided with a front pin hole. The rear end of the steel rail (21) is provided with a rear pin hole with the same height and matching size as the front pin hole, and is equipped with a pin shaft.

3. The retrograde system after the conversion of the front fulcrum hanging basket walking system according to claim 1 is characterized by: The horizontal cross frame (12) is constructed by using horizontal and vertical diagonal rods to form a triangular frame structure.

4. The retrograde system after the conversion of the front fulcrum hanging basket walking system according to claim 1 is characterized by: The top of the steel rail (21) is provided with a slide groove, and the bottom of the hanging leg docking seat (22) is provided with a roller rolling along the slide groove.

5. The retrograde system after the conversion of the front fulcrum hanging basket walking system according to claim 1 is characterized by: A slider is provided at the bottom of the leg-hanging docking seat (22) and is fitted with the upper end surface of the rail (21) and moves along the rail (21). The width of the slider is greater than the width of the upper end surface of the rail (21), and inverted "L"-shaped limit baffles for lateral limit of the slider are provided at the left and right edges of the bottom of the slider.

6. The reverse travel system after the front fulcrum hanging basket walking system is converted according to claim 5, characterized in that: The contact surface between the slider and the upper end surface of the rail (21) is smeared with a layer of lubricating butter.

7. The reverse travel system after the front fulcrum hanging basket walking system is converted according to claim 1, characterized in that: The mounting seat (111) and the leg-hanging docking seat (22) are connected by snap-fit.

8. The reverse travel system after the front fulcrum hanging basket walking system is converted according to claim 1, characterized in that: The mounting seat (111) and the leg-hanging docking seat (22) are connected by a pin shaft.

9. The retrograde system after the front fulcrum hanging basket walking system is converted according to claim 1, characterized in that: The butt joint ends of the jack base (24), the hydraulic jack (23), the hanging leg butt joint seat (22) and the connecting rod (25) are all connected by pin shafts.

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