Sliding equipment with protective structure for bridge guardrail outer side suspension construction

Abstract

The invention discloses sliding equipment used for bridge guardrail outer side suspension construction and provided with a protection structure, and relates to the technical field of bridge guardrail construction, in particular to the sliding equipment used for bridge guardrail outer side suspension construction and provided with the protection structure. And the counterweight base is integrally connected with the first bracket through a first hydraulic oil cylinder arranged at the top of the counterweight base and a bolt. According to the sliding equipment with the protection structure for bridge guardrail outer side suspension construction, the balance weight base is additionally arranged, the base wheel makes contact with the ground, the gravity center of the equipment is lowered, a brake pad can effectively brake when the equipment is static, accidental movement is prevented, friction force is increased through an internal rubber pad, and the braking effect is improved; the folding structure provides convenience for carrying and effectively provides operation space in the unfolding mode, through functional expansion of the umbrella fixing frame and the tool box, great convenience and guarantee are brought to construction, the working comfort degree is improved, the good working state is maintained, and then the continuity of the construction progress is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of bridge guardrail construction, in particular to sliding equipment with a protective structure for suspended construction outside a bridge guardrail. Background Art

[0002] Bridge guardrail construction refers to a series of inspection, maintenance, repair and improvement work carried out to maintain the normal use function, safety and good appearance of the bridge guardrail, including inspection of the structural integrity of the guardrail, checking for cracks, deformation, looseness, painting, galvanizing and other anti-corrosion operations on the guardrail, etc.

[0003] During the construction of bridge guardrails, a device is used to provide safety and convenience for workers who are performing suspended construction on the outside of the bridge guardrail. The device may be installed on the bridge guardrail or other fixed structure so that the equipment can slide smoothly along the predetermined route.

[0004] However, at present, 1. In order not to affect traffic, maintenance is usually carried out on one side. Some equipment is too large and will occupy most of the area, affecting the traffic hub, and oversized equipment will also cause many inconveniences during transportation; 2. Some sliding devices with smaller footprint can be directly installed on the guardrail, and slide with the guardrail by means of rollers, but the specifications of the guardrail width are different, and most of them cannot be adjusted. In addition, this type of equipment lacks a load-bearing structure at the bottom, which may cause the risk of rollover; 3. In most cases, this type of equipment lacks functionality. Since maintenance involves different tools, the platform operating position is limited, and it is also very easy to fall from the hollow platform guardrail. At the same time, it cannot cope with extreme weather and cannot meet people's usage needs. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a sliding device with a protective structure for suspended construction on the outside of a bridge guardrail, which solves the problems of excessive space occupation, inconvenient transportation, lack of adjustability, weak protection and small functionality raised in the above background technology.

[0006] To achieve the above purpose, the present invention is implemented through the following technical solutions: a sliding device with a protective structure for suspended construction on the outer side of a bridge guardrail comprises a counterweight base, the counterweight base is connected to a first bracket through a first hydraulic cylinder provided on the top thereof by bolts, the first bracket is connected to a second bracket through an inner connecting bracket provided thereon, a tool box is plugged and connected to the top of the second bracket, the second brackets are connected through an operating platform, a first extension rod is slidably connected to the inside of one end of the second bracket, a second extension rod is slidably connected to the inside of the first extension rod, the first extension rod and the second bracket are threadedly connected as well as the first extension rod and the second extension rod respectively through limiting bolts, a transmission rack is welded to one side of the outer wall of the second bracket, the transmission rack is vertically distributed and closely fitted to each other, the tops of the first extension rod and the second extension rod are rotatably connected to a connecting seat respectively, the outer wall of the second bracket is rotatably connected to auxiliary wheels respectively, the auxiliary wheels are distributed at right angles, and an umbrella fixing frame is rotatably connected to one side of the top of the operating platform.

[0007] Cylinders are rotatably connected to the two ends of the outer wall of the counterweight base, and brake pads are rotatably connected to the bottom of the counterweight base. The brake pads are symmetrically distributed and are rotatably connected to the power output ends of the cylinders on both sides via axle pins. Base wheels are respectively provided at the bottom of the counterweight base, and the base wheels are located between the brake pads.

[0008] The second bracket is composed of a left bracket and a right bracket, and the internal connecting bracket is slidably connected to the sliding grooves at both ends of the inner walls of the left bracket and the right bracket through sliders respectively. The internal rotation of the left bracket is connected with a lead screw, and the inner bottom wall of the right bracket is provided with a supporting rack, and the surface of the supporting rack is meshedly connected with a supporting gear.

[0009] The operating platform is composed of a fixed base plate, a sliding base plate and an adjustable base plate. One end of the sliding base plate is welded to the adjustable base plate as a whole, and the other end of the sliding base plate is connected to the power output end of the second hydraulic cylinder opened inside the fixed base plate. The fixed base plate is slidably connected to the slide grooves inside the left bracket and the right bracket through sliders. The outer wall of the side of the fixed base plate adjacent to the second bracket is rotatably connected with a transmission gear, and the transmission gear is integrally connected with the first bevel gear through a shaft rod running through the axis center thereof. The first bevel gear is respectively meshed and connected with the second bevel gear, and the second bevel gears are coaxially connected, and the transmission gears are respectively meshed with the sides of the transmission rack.

[0010] The umbrella fixing frame is circular, one side of which is penetrated by an adjusting bolt which is threadedly connected, and the shaft head on one side of the adjusting bolt is rotatably connected with an arc-shaped pressing sheet.

[0011] Optionally, the brake pad is flipped 90 degrees at the bottom of the counterweight base by a cylinder, and an arc-shaped groove covered with a rubber pad is provided on the side where the brake pad fits with the base wheel, and the brake pad is connected to one side of the base wheel by a cylinder.

[0012] Optionally, a storage groove is provided on one side of the outer wall of the counterweight base, and the specifications of the storage groove are larger than the tool box, and the first bracket forms a lifting structure on the top of the counterweight base through the first hydraulic cylinder.

[0013] Optionally, the internal connecting bracket is provided with two groups, and the lead screw is threadedly connected to the inner wall of the internal connecting bracket on the side adjacent to the left bracket, and the supporting gear is rotatably connected to one end on the side adjacent to the right bracket. At the same time, the internal connecting bracket forms a transmission structure through the lead screw and the supporting gear respectively and slides and retracts on the inner walls of the left bracket and the right bracket.

[0014] Optionally, the first extension rod and the second extension rod have the same length specifications, and the first extension rod and the second extension rod are respectively provided with through holes threadedly connected to the limit bolts at the upper and lower ends, and the outer wall of the first extension rod is provided with several groups of notches consistent with the specifications of the transmission rack, and the second bracket and the left bracket and the right bracket are respectively provided with transmission racks on the opposite side.

[0015] Optionally, a steering gear is rotatably connected to one side of the outer wall of the connecting seat, and the steering gears are respectively meshed and connected with arc-shaped racks, and the arc-shaped racks are respectively relatively glued and connected to the outer walls of the first extension rod and the second extension rod at their upper ends.

[0016] Optionally, the first extension rod forms a sliding and telescopic structure in the slide grooves of the inner walls of the left bracket and the right bracket respectively through the connecting seat located at the top thereof, and the first extension rod rotates horizontally 90 degrees inside the left bracket and the right bracket respectively through the steering gear and the arc-shaped rack on the outer wall thereof, and the second extension rod is slidably connected to the slide groove of the inner wall of the first extension rod through the connecting seat located at the top thereof, and at the same time, the second extension rod rotates horizontally 90 degrees inside the first extension rod through the steering gear and the arc-shaped rack on the outer wall thereof, and the upper and lower groups of steering gears and arc-shaped racks are distributed at an angle of 90 degrees along both sides of the outer walls of the first extension rod and the second extension rod, respectively.

[0017] Optionally, the first extension rod and the second extension rod are respectively provided with directional rods above the arc-shaped racks on their surfaces, and the directional rods on the surface of the first extension rod slide in the sliding grooves on the inner walls of the left bracket and the right bracket respectively through horizontal transmission of the first extension rod, and the directional rods on the surface of the second extension rod slide in the sliding grooves on the inner wall of the first extension rod through horizontal transmission of the second extension rod.

[0018] Optionally, the transmission gears form a relative rotation structure through a second bevel gear and a first bevel gear that are vertically distributed to each other, and the operating platform forms a lifting structure along the second bracket, the first extension rod and the outer wall of the second extension rod through the transmission gear.

[0019] Optionally, L-shaped support rods are welded to both ends of the top of the fixed base plate and the adjustable base plate, and one side of the L-shaped support rod is connected by a telescopic guardrail, and the other side of the L-shaped support rod is connected by a fixed guardrail. At the same time, the height of the fixed guardrail on the side adjacent to the left bracket and the right bracket is half of the fixed guardrail on the other side.

[0020] The present invention provides a sliding device with a protective structure for suspended construction outside a bridge guardrail, which has the following beneficial effects:

[0021] The sliding equipment with a protective structure used for the suspended construction on the outside of the bridge guardrail is equipped with a counterweight base, which is in contact with the ground through the base wheels to lower the center of gravity of the equipment. The brake pads can effectively brake when the equipment is stationary to prevent accidental movement. The internal rubber pads increase friction and improve the braking effect. The extension rod and transmission structure design inside the second bracket ensure the smoothness and stability of the equipment during the folding and unfolding process, avoid interference between components, and ensure the accuracy and reliability of the transmission.

[0022] The sliding equipment with a protective structure used for the suspended construction on the outer side of the bridge guardrail and the transmission structure of the lead screw and the internal connecting bracket can expand the bracket spacing to adapt to guardrails of different specifications without being restricted by specifications, thereby increasing the application range of the equipment. The second hydraulic cylinder in the fixed base plate can expand the operating area, reduce space restrictions, improve work efficiency, and reduce space when folded for easy transportation.

[0023] The bridge guardrail is equipped with a sliding device with a protective structure for suspended construction on the outside. The lifting structure of the operating platform facilitates smooth docking with guardrails of different heights. The setting and plug-in structure of the tool box facilitate the use and storage of tools, making the construction process smoother.

[0024] The bridge guardrail is equipped with a sliding device with a protective structure for suspended construction on the outside. The sliding and telescopic structure of the two sets of extension rods saves space when not in use and expands the operating space when in use. The telescopic guardrail can provide protection as the operating area expands. The fixed guardrail at the front end of the operating platform close to the bridge is relatively low, which reduces space occupancy while ensuring safety and facilitates observation of construction conditions.

[0025] The outer side of the bridge guardrail is suspended for construction with a sliding device with a protective structure. In hot weather, the umbrella fixing frame can be used to install a parasol, and its rotating structure can adjust the angle to reduce the adverse effects of high temperature on personnel and improve working comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1It is a schematic diagram of the main structure of the invention;

[0027] Figure 2 It is a schematic diagram of the structure of the counterweight base in the invention;

[0028] Figure 3 It is a schematic diagram of the tool box structure in the invention;

[0029] Figure 4 It is a schematic diagram of the internal structure of the second bracket in the invention;

[0030] Figure 5 It is a schematic diagram of the internal structure of the right bracket in the invention;

[0031] Figure 6 It is a schematic diagram of the structure of the first extension rod and the second extension rod in the invention;

[0032] Figure 7 It is a schematic diagram of the structure of the connecting seat in the invention;

[0033] Figure 8 It is a schematic diagram of the structure of the operating platform in the invention;

[0034] Fig. 9 It is a schematic diagram of the structure of the umbrella fixing frame in the invention.

[0035] In the figure: 1, counterweight base; 101, cylinder; 102, brake pad; 103, base wheel; 104, storage slot; 2, first hydraulic cylinder; 3, first bracket; 4, inner connecting bracket; 5, second bracket; 501, left bracket; 502, right bracket; 503, lead screw; 504, support rack; 505, support gear; 6, tool box; 7, operating platform; 701, fixed bottom plate; 702, sliding bottom plate; 703, adjustment bottom plate; 704, second hydraulic Cylinder; 705, transmission gear; 706, first bevel gear; 707, second bevel gear; 708, L-shaped support rod; 709, telescopic guardrail; 710, fixed guardrail; 8, first extension rod; 9, second extension rod; 10, limit bolt; 11, transmission rack; 12, connecting seat; 1201, steering gear; 1202, arc rack; 13, auxiliary wheel; 14, umbrella fixing frame; 1401, adjusting bolt; 1402, arc pressure piece; 15, directional rod. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] See also Figures 1 to 9 The present invention provides a technical solution: a sliding device with a protective structure for suspended construction outside a bridge guardrail, comprising a counterweight base 1, the counterweight base 1 is connected to a first bracket 3 through a first hydraulic cylinder 2 opened on the top thereof by bolts, the first bracket 3 is connected to a second bracket 5 through an inner connecting bracket 4 opened thereon, a tool box 6 is plugged and connected to the top of the second bracket 5, the second brackets 5 are connected through an operating platform 7, a first extension rod 8 is slidably connected to the inside of one end of the second bracket 5, and a second extension rod 9 is slidably connected to the inside of the first extension rod 8, The first extension rod 8 and the second bracket 5 and the first extension rod 8 and the second extension rod 9 are respectively threadedly connected by limiting bolts 10, and transmission racks 11 are respectively welded on one side of the outer walls of the second bracket 5, the first extension rod 8 and the second extension rod 9. The transmission racks 11 are vertically distributed and fit tightly with each other. The tops of the first extension rod 8 and the second extension rod 9 are respectively rotatably connected to connecting seats 12, and the outer walls of the second bracket 5 are respectively rotatably connected to auxiliary wheels 13, which are distributed at right angles to each other, and one side of the top of the operating platform 7 is rotatably connected to an umbrella fixing frame 14.

[0040] Cylinders 101 are rotatably connected to both ends of the outer wall of the counterweight base 1, and brake pads 102 are rotatably connected to the bottom of the counterweight base 1. The brake pads 102 are symmetrically distributed and are rotatably connected to the power output ends of the cylinders 101 on both sides via axle pins. Base wheels 103 are respectively provided at the bottom of the counterweight base 1, and the base wheels 103 are located between the brake pads 102.

[0041] The second bracket 5 is composed of a left bracket 501 and a right bracket 502. The internal connecting bracket 4 is slidably connected to the sliding grooves at both ends of the inner walls of the left bracket 501 and the right bracket 502 through sliders. The internal rotation of the left bracket 501 is connected to a lead screw 503. The inner bottom wall of the right bracket 502 is provided with a supporting rack 504, and the surface of the supporting rack 504 is meshedly connected to a supporting gear 505.

[0042] The operating platform 7 is composed of a fixed base plate 701, a sliding base plate 702 and an adjusting base plate 703. One end of the sliding base plate 702 is welded to the adjusting base plate 703 as a whole, and the other end of the sliding base plate 702 is connected to the power output end of the second hydraulic cylinder 704 opened inside the fixed base plate 701. The fixed base plate 701 is slidably connected to the slide grooves inside the left bracket 501 and the right bracket 502 through sliders. The outer wall of the fixed base plate 701 adjacent to the second bracket 5 is rotatably connected with a transmission gear 705. The transmission gear 705 is integrally connected with the first bevel gear 706 through a shaft rod running through the axis center. The first bevel gear 706 is meshed with a second bevel gear 707, and the second bevel gears 707 are coaxially connected. The transmission gear 705 is meshed with the side of the transmission rack 11.

[0043] The umbrella fixing frame 14 is circular, and an adjusting bolt 1401 is passed through and threadedly connected to one side thereof. An arc-shaped pressing piece 1402 is rotatably connected to the shaft head of one side of the adjusting bolt 1401 .

[0044] In this embodiment, Figure 1 and Figure 2As shown, the brake pad 102 is turned 90 degrees at the bottom of the counterweight base 1 by the cylinder 101, and an arc-shaped notch covered with a rubber pad is provided on the side where the brake pad 102 fits with the base wheel 103, and the brake pad 102 is connected to one side of the base wheel 103 by the cylinder 101; currently, some sliding equipment clamps the construction platform with an escalator on the guardrail, and relies on the wheels rolling on the construction platform and the guardrail to move. First, there is a lack of contact with the bridge deck and no load-bearing structure. During use, it is very easy to have the risk of rollover. In addition, the structure has great limitations and can only be used for guardrails with solid structures. Once a hollow or other non-standard structure guardrail is encountered, it cannot be adapted. Its application scope is seriously limited. In addition, it only relies on the wheels in contact with the guardrail to move, has poor stability and is easily disturbed by external factors, such as wind force, uneven road surface, etc., which increases the potential safety hazards in the construction process. By adding a counterweight base 1, it is directly connected to the bridge ground foundation through the base wheel 103 and is not restricted by the guardrail style. Adding a counterweight base 1 can lower the center of gravity of the equipment. When the equipment is stationary at a fixed location for construction, the brake pad 102 is driven by the cylinder 101 to flip and fit the base wheel 103 for braking, which can further ensure that the equipment will not move accidentally and ensure the stability and safety of construction. The rubber pad inside can also increase friction and improve the braking effect.

[0045] In this embodiment, Figure 1 and Figure 2 As shown, a storage groove 104 is provided on one side of the outer wall of the counterweight base 1, and the specifications of the storage groove 104 are larger than the tool box 6, and the first bracket 3 forms a lifting structure on the top of the counterweight base 1 through the first hydraulic cylinder 2; because the operating space of the operating platform 7 is limited, it may not be possible to carry a large number of tools. By adding the tool box 6, combined with the subsequent lifting structure of the operating platform 7, it can be ensured that commonly used tools are available at any time, making the construction process smoother. After the maintenance work is completed, the storage groove 104 can be placed without occupying additional space, making the equipment more compact as a whole, and the plug-in structure during re-installation also improves the stable and fast installation method, and the lifting structure realized by the first bracket 3 through the first hydraulic cylinder 2 makes it easy to dock with the top of guardrails of various heights, increasing the versatility of the equipment.

[0046] In this embodiment, Figure 4 and Figure 5As shown, two groups of inner connecting brackets 4 are provided, and the lead screw 503 is threadedly connected to the inner wall of the inner connecting bracket 4 on the side adjacent to the left bracket 501, and the supporting gear 505 is rotatably connected to one end of the side adjacent to the right bracket 502. At the same time, the inner connecting bracket 4 is respectively formed with a transmission structure by the lead screw 503 and the supporting gear 505 and slides and retracts on the inner walls of the left bracket 501 and the right bracket 502; because the equipment partially connected to the edge of the guardrail lacks adjustability, the transmission structure of the lead screw 503 and the inner connecting bracket 4 on one side can expand the distance between the first bracket 3 and the second bracket 5, which can adapt to guardrails of different specifications and sizes, increase the scope of application of the equipment, and help construction personnel to operate in a more ideal working position, and when the inner connecting bracket 4 on one side is driven by the lead screw 503, the inner connecting bracket 4 on the other side is driven by the supporting gear 505 and the supporting rack 504, which not only ensures that the movement of the inner connecting brackets 4 on both sides is synchronized, but also has a beneficial effect of balancing the force.

[0047] In this embodiment, Figure 6 As shown, the length specifications of the first extension rod 8 and the second extension rod 9 are consistent, and the first extension rod 8 and the second extension rod 9 are respectively provided with through holes threadedly connected to the limit bolts 10 at the upper and lower ends, and the outer wall of the first extension rod 8 is provided with a plurality of groups of notches consistent with the specifications of the transmission rack 11, and the second bracket 5 and the left bracket 501 and the right bracket 502 are respectively provided with transmission racks 11 on the opposite sides; part of the sliding equipment is a strip-shaped channel guardrail as a construction platform, although it is protective, the overly closed space may affect the operation during construction, and it is also extremely inconvenient during transportation, and the first extension rod 8, the second extension rod 9 and the second bracket 5 form a sliding and telescopic structure with each other, and the first extension rod 8 slides out of the second bracket 5, and the second extension rod 9 is drawn out from the first extension rod 8, and the consistency of its specifications ensures the effective splicing of the transmission rack 11, which lays an important foundation for the subsequent transmission, and can be fixed by the limit bolt 10 whether in the unfolded or folded state, because the first extension rod 8 and the second extension rod 9 and the second bracket 5 mutually constitute a sliding and telescopic structure, and the surfaces of these three structures are provided with a transmission rack 11. In order to ensure the effective splicing of the transmission rack 11, the first extension rod 8 and the second extension rod 9 are pre-rotated 90 degrees before being folded or extended each time, and the grooves on the surface of the first extension rod 8 combined with the mutual sliding structure can effectively ensure that the transmission rack 11 will not be restricted when synchronously folded, providing an effective sliding path for the top and bottom transmission racks 11.

[0048] In this embodiment, Figure 7As shown, a steering gear 1201 is rotatably connected to one side of the outer wall of the connecting seat 12, and the steering gear 1201 is respectively meshedly connected with an arc-shaped rack 1202, and the arc-shaped rack 1202 is respectively relatively glued and connected to the outer walls of the first extension rod 8 and the second extension rod 9 at their upper ends; the structure of the connecting seat 12 effectively ensures the accurate sliding path of the first extension rod 8 and the second extension rod 9, creates favorable conditions for the tight splicing of the transmission rack 11, thereby ensuring the accuracy and reliability of subsequent transmission.

[0049] In this embodiment, Figure 7 As shown, the first extension rod 8 forms a sliding telescopic structure in the slide grooves of the inner walls of the left bracket 501 and the right bracket 502 through the connecting seat 12 located at the top thereof, and the first extension rod 8 rotates horizontally at 90 degrees in the left bracket 501 and the right bracket 502 through the steering gear 1201 and the arc-shaped rack 1202 on the outer wall thereof, and the second extension rod 9 is slidably connected to the slide groove of the inner wall of the first extension rod 8 through the connecting seat 12 located at the top thereof, and at the same time, the second extension rod 9 rotates horizontally at 90 degrees in the first extension rod 8 through the steering gear 1201 and the arc-shaped rack 1202 on the outer wall thereof, and the upper and lower groups of steering gears 1201 and arc-shaped racks 1202 rotate horizontally along the inner wall of the first extension rod 8, respectively. The first extension rod 8 and the second extension rod 9 are distributed at an angle of 90 degrees on both sides of the outer wall; the structure of the steering gear 1201 and the arc rack 1202 can ensure that the first extension rod 8 and the second extension rod 9 can be rotated in advance when folding and unfolding, thereby avoiding the transmission rack 11 from being restricted due to angle problems during the folding process, making the entire folding and unfolding process smoother and unobstructed, and the purpose of the different position distribution of the steering gear 1201 and the arc rack 1202 on the outer wall of the first extension rod 8 and the second extension rod 9 is to enable the first extension rod 8 and the second extension rod 9 to rotate in different directions, and then do not interfere with each other when driving the transmission rack 11 to fold synchronously, thereby ensuring the smooth progress of the folding process.

[0050] In this embodiment, Figure 7 As shown, directional rods 15 are respectively provided above the arc-shaped racks 1202 on the surfaces of the first extension rod 8 and the second extension rod 9, and the directional rods 15 on the surface of the first extension rod 8 slide in the slide grooves on the inner walls of the left bracket 501 and the right bracket 502 respectively through the horizontal transmission of the first extension rod 8, and the directional rods 15 on the surface of the second extension rod 9 slide in the slide grooves on the inner walls of the first extension rod 8 through the horizontal transmission of the second extension rod 9; when the two directional rods 15 located on the surfaces of the first extension rod 8 and the second extension rod 9 slide in the slide grooves inside the corresponding areas respectively as they rotate, they will contact with specific pressure sensors in the slide grooves, and thus can achieve a precise rotation angle, ensuring that the transmission racks 11 can be accurately spliced ​​with each other, and achieve precise meshing with the transmission gear 705, thereby ensuring the lifting and lowering of the operating platform 7.

[0051] In this embodiment, Figure 8 As shown, the transmission gears 705 form a relative rotation structure through the second bevel gear 707 and the first bevel gear 706 which are distributed perpendicular to each other, and the operating platform 7 forms a lifting structure along the outer walls of the second bracket 5, the first extension rod 8 and the second extension rod 9 through the transmission gear 705; the first extension rod 8 and the second extension rod 9 inside the second bracket 5 which are arranged opposite to each other on both sides are arranged correspondingly, so in order to ensure that the two groups of transmission gears 705 meshing with the transmission rack 11 can synchronously realize the same transmission direction, the relative rotation of the two groups of transmission gears 705 is achieved through the structure of the second bevel gear 707 and the first bevel gear 706, and then the transmission purpose in the same direction can be achieved.

[0052] In this embodiment, Figure 8 As shown, L-shaped support rods 708 are welded to the top ends of the fixed bottom plate 701 and the adjustable bottom plate 703, and one side of the L-shaped support rod 708 is connected by a telescopic guardrail 709, and the other side of the L-shaped support rod 708 is connected by a fixed guardrail 710. At the same time, the height of the fixed guardrail 710 on the side adjacent to the left bracket 501 and the right bracket 502 is half of the fixed guardrail 710 on the other side; the second hydraulic cylinder 704 in the fixed bottom plate 701 can slide out of the sliding bottom plate 702 to expand the area of ​​the entire operating area, providing a more spacious working space for construction personnel and reducing the space shortage caused by narrow space. The narrowness causes limited movement, and the space is correspondingly reduced when folded, which provides convenience for transportation. The telescopic guardrail 709 is composed of two rod-like structures that are slidably connected, one end of which can slide and retract accordingly. When the operating area is expanded, the telescopic guardrail 709 can be extended accordingly, always providing effective protection to ensure the safety of construction workers. Since the height of the fixed guardrail 710 at the front end close to the bridge can be relatively low, it will not block the sight of construction workers close to the side of the bridge, making it easy to observe the construction situation and the surrounding environment. Under the premise of ensuring a certain level of safety protection, the occupation of the operating space is reduced, providing more effective space for construction.

[0053] To summarize, the sliding device with a protective structure for the suspended construction on the outer side of the bridge guardrail is used. When in use, the counterweight base 1 is moved to the construction point. The first extension rod 8 and the second extension rod 9 inside the second bracket 5 are not extended due to the fixation of the limit bolts 10. The limit bolts 10 used to fix the second bracket 5 and the first extension rod 8 and the surfaces of the first extension rod 8 and the second extension rod 9 are removed respectively. At the same time, the power supply of the first hydraulic cylinder 2 is started to drive the first bracket 3 to be lifted to a certain height to facilitate the extension of the sliding component in the second bracket 5, thereby lifting the second bracket 5, and the first extension rod 8 slides out of the second bracket 5 due to gravity, and the second extension rod 9 slides out of the first extension rod 8, and the connecting seat 12 effectively ensures the sliding of the first extension rod 8 and the second extension rod 9. The moving path makes their sliding extension lengths consistent, and the second bracket 5 is threadedly fixed to the first extension rod 8 and the first extension rod 8 and the second extension rod 9 by the limiting bolts 10 again. It should be noted that the threaded through holes at the upper and lower ends of the first extension rod 8 and the second extension rod 9 are fixed to the limiting bolts 10 respectively in the folded and unfolded states, and at this time, the transmission racks 11 on the surfaces of the first extension rod 8 and the second extension rod 9 and the surface of the second bracket 5 are staggered instead of fitting. The first hydraulic cylinder 2 is used to drive the first bracket 3 to the highest point again, and the counterweight base 1 is moved to the edge of the bridge guardrail, so that the inverted U-shaped structure formed below the first bracket 3 and the second bracket 5 is located at the top of the bridge guardrail. At the same time, the first hydraulic cylinder 2 is driven The hydraulic cylinder 2 is pressed to pull the first bracket 3 downward in the opposite direction. At the same time, the distance between the first bracket 3 and the second bracket 5 is adjusted according to the height of the guardrail, and the lead screw 503 inside the left bracket 501 of the power supply is started to rotate, thereby causing the inner connecting bracket 4 threaded therewith to transmit, and correspondingly slide inside the left bracket 501 by sliding. At the same time, the sliding of the inner connecting bracket 4 on one side will correspondingly drive the inner connecting bracket 4 on the other side to slide inside the right bracket 502, and the supporting gear 505 at the bottom of the inner connecting bracket 4 inside the right bracket 502 will correspondingly mesh with the surface of the supporting rack 504 to provide balanced support for this side. Through this adjustment method, the first hydraulic cylinder 2 drives the descending first bracket 3 and the second bracket 5 to transmit and The telescopic inner connecting bracket 4 can realize that the inverted U-shaped structure formed under the first bracket 3 and the second bracket 5 is attached to the top of the bridge guardrail, and the auxiliary wheel 13 on the side adjacent to the second bracket 5 and the first bracket 3 is attached and rolled on the top of the guardrail, and the auxiliary wheel 13 distributed on the other side of the second bracket 5 is attached and rolled on the outside of the guardrail to achieve the purpose of clamping. After the position is fixed, the brake pad 102 is respectively engaged to one side of the base wheel 103 by the drive of the cylinder 101 to achieve the braking effect, and the power supply of the connecting seat 12 is driven. The two connecting seats 12 are rotated in different directions due to the steering gear 1201 on one side of the servo motor, and then respectively engage the arc rack 1202 located on the surface of the first extension rod 8 and the second extension rod 9 to rotate.The first extension rod 8 and the second extension rod 9 are respectively rotated horizontally in different directions. While rotating, the connecting seat 12 on the top remains in a fixed position, and the directional rod 15 on the surface rotates accordingly and slides in the corresponding slide grooves respectively. When it contacts the pressure sensor (AT8101) set at a specific position, in order to realize the function of stopping the rotation of the directional rod 15 after contacting the pressure sensor, it is necessary to install a specially designed control system outside the equipment. The pressure sensor is circular and vertically installed in the arc-shaped slide groove in the sliding area of ​​the directional rod 15. Since the connecting seat 12 will slide in the slide groove of the second bracket 5 and the first extension rod 8 accordingly, the slide groove is arranged from top to bottom on the inner wall of the corresponding sliding component, and a part of it penetrates longitudinally. In the arc-shaped slide groove where the directional rod 15 slides, when the directional rod 15 touches the pressure sensor, the pressure sensor will detect the pressure applied by the directional rod 15, and the pressure signal will be transmitted to the control system. The control system will then send a command to the servo of the drive connector 12 to stop rotating, thereby ensuring an accurate 90-degree rotation angle. This consistent rotation angle effectively ensures the effective splicing of the three sets of transmission racks 11, and drives the power supply on one side of the operating platform 7 at the same time. When the transmission gear 705 rotates, its coaxial first bevel gear 706 rotates to drive the second bevel gear 707 to rotate. The second bevel gear 707 is coaxially connected and drives the first bevel gear 706 on the other side to rotate in the opposite direction, thereby causing the transmission gear 705 at the other end to rotate in the opposite direction, thereby causing the operating platform 7 is transmitted through two sets of counter-rotating transmission gears 705 meshing on the spliced ​​transmission rack 11, falling to the lowest point of the rack, and driving the second hydraulic cylinder 704 inside the sliding base plate 702, which pushes the sliding base plate 702, thereby expanding the distance between the fixed base plate 701 and the adjustment base plate 703. When it is unfolded, the telescopic guardrails 709 on both sides are unfolded accordingly. Since a part of the operating platform 7 slides inside the second bracket 5, and the first extension rod 8 and the second extension rod 9 are correspondingly provided with through slide grooves, thereby providing a support area for the operating platform 7, the operator can climb into the operating platform 7 wearing a protective harness, and then the construction worker on the side inserts the tool box 6 inside the storage groove 104 into the left bracket 501 and In the notch on the surface of the right bracket 502, it should be noted that the main purpose of the telescopic structure inside the second bracket 5 is to achieve the beneficial effect of not occupying too much area in the folded state while effectively meeting the height docking with the guardrail, rather than adjusting according to the lifting. The overall extension height effectively reaches 2 meters. In most cases, this preset height can fully meet the maintenance needs. If the operator wants to slide forward during use, the brake pads 102 are separated from both sides of the base wheel 103 by the cylinder 101 in advance, and through the sliding wall, the two sets of auxiliary wheels 13 on the surface of the second bracket 5 will be correspondingly attached to the top and side of the guardrail for movement, and each time the position is fixed, the brake pads 102 are driven by the cylinder 101 to fix the base wheel 103 again.And when the weather is hot, the rod for such an umbrella can be inserted through the umbrella fixing frame 14, and the adjusting bolt 1401 can be screwed to drive the arc-shaped pressing piece 1402 to fix the rod, and the rotating structure of the umbrella fixing frame 14 can adjust the angle, which helps to reduce the adverse effects of high temperature on the operator's body and improve work comfort and efficiency.

[0054] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sliding device with a protective structure for suspended construction outside a bridge guardrail, comprising a counterweight base (1), characterized in that: The counterweight base (1) is connected to the first bracket (3) by bolts via a first hydraulic cylinder (2) provided on the top thereof; the first bracket (3) is connected to the second bracket (5) via an inner connecting bracket (4) provided thereon; a tool box (6) is plugged into the top of the second bracket (5); the second brackets (5) are connected to each other via an operating platform (7); a first extension rod (8) is slidably connected to the inside of one end of the second bracket (5); a second extension rod (9) is slidably connected to the inside of the first extension rod (8); the first extension rod (8) and the second bracket (5) and the first extension rod (9) are connected to each other via a first connecting rod (4) and a second connecting rod (5 ... tool box (6) is plugged into the top of the second bracket (5) and a tool box (6) is plugged into the top of the second bracket (5) and a tool box (6) is plugged into the top The first extension rod (8) and the second extension rod (9) are respectively threadedly connected by limiting bolts (10); a transmission rack (11) is respectively welded to one side of the outer wall of the second bracket (5), the first extension rod (8) and the second extension rod (9); the transmission rack (11) is vertically distributed and closely fitted to each other; the tops of the first extension rod (8) and the second extension rod (9) are respectively rotatably connected to a connecting seat (12); the outer walls of the second bracket (5) are respectively rotatably connected to auxiliary wheels (13); the auxiliary wheels (13) are distributed at right angles to each other; and one side of the top of the operating platform (7) is rotatably connected to an umbrella fixing frame (14); The two ends of the outer wall of the counterweight base (1) are rotatably connected to cylinders (101), the bottom of the counterweight base (1) is rotatably connected to brake pads (102), the brake pads (102) are symmetrically distributed and are respectively rotatably connected to the power output ends of the cylinders (101) on both sides via shaft pins, and the bottom of the counterweight base (1) is respectively provided with base wheels (103), and the base wheels (103) are located between the brake pads (102); The second bracket (5) is composed of a left bracket (501) and a right bracket (502); the inner connecting bracket (4) is slidably connected to the slide grooves at both ends of the inner walls of the left bracket (501) and the right bracket (502) through sliders; the left bracket (501) is internally rotatably connected to a lead screw (503); the inner bottom wall of the right bracket (502) is provided with a support rack (504); the surface of the support rack (504) is meshingly connected to a support gear (505); The operating platform (7) is composed of a fixed bottom plate (701), a sliding bottom plate (702) and an adjustable bottom plate (703). One end of the sliding bottom plate (702) is welded to the adjustable bottom plate (703) as a whole. The other end of the sliding bottom plate (702) is connected to the power output end of the second hydraulic cylinder (704) provided inside the fixed bottom plate (701). The fixed bottom plate (701) is slidably connected to the inside of the left bracket (501) and the right bracket (502) through sliders. The outer wall of the fixed bottom plate (701) adjacent to the second bracket (5) is rotatably connected to a transmission gear (705), the transmission gear (705) is integrally connected to the first bevel gear (706) through a shaft rod penetrating the axis center thereof, the first bevel gear (706) is meshedly connected to a second bevel gear (707), the second bevel gears (707) are coaxially connected, and the transmission gears (705) are meshed with the sides of the transmission rack (11); The umbrella fixing frame (14) is circular, and one side of the umbrella fixing frame is penetrated by an adjusting bolt (1401) which is threadedly connected thereto. The shaft head on one side of the adjusting bolt (1401) is rotatably connected to an arc-shaped pressing piece (1402).

2. The sliding device with a protective structure for suspended construction outside the bridge guardrail according to claim 1 is characterized in that: The brake pad (102) is turned 90 degrees at the bottom of the counterweight base (1) through the cylinder (101), and an arc-shaped notch wrapped with a rubber pad is provided on the side of the brake pad (102) that is in contact with the base wheel (103), and the brake pad (102) is connected to one side of the base wheel (103) by snap-fitting through the cylinder (101).

3. The sliding device with a protective structure for suspended construction outside the bridge guardrail according to claim 1 is characterized in that: A storage groove (104) is provided on one side of the outer wall of the counterweight base (1), and the size of the storage groove (104) is larger than that of the tool box (6), and the first bracket (3) forms a lifting structure on the top of the counterweight base (1) through the first hydraulic cylinder (2).

4. The sliding device with a protective structure for suspended construction outside the bridge guardrail according to claim 1 is characterized in that: The inner connecting bracket (4) is provided with two groups, and the lead screw (503) is threadedly connected to the inner wall of the inner connecting bracket (4) on the side adjacent to the left bracket (501), and the support gear (505) is rotatably connected to one end of the side adjacent to the right bracket (502). At the same time, the inner connecting bracket (4) respectively forms a transmission structure through the lead screw (503) and the support gear (505) and slides and retracts on the inner walls of the left bracket (501) and the right bracket (502).

5. The sliding device with a protective structure for suspended construction outside the bridge guardrail according to claim 1 is characterized in that: The first extension rod (8) and the second extension rod (9) have the same length specifications, and the first extension rod (8) and the second extension rod (9) are respectively provided with through holes threadedly connected to the limit bolts (10) at the upper and lower ends, and the outer wall of the first extension rod (8) is provided with a plurality of groups of notches that are consistent with the specifications of the transmission rack (11), and the second bracket (5) and the left bracket (501) and the right bracket (502) are respectively provided with transmission racks (11).

6. The sliding device with a protective structure for suspended construction outside the bridge guardrail according to claim 1 is characterized in that: A steering gear (1201) is rotatably connected to one side of the outer wall of the connecting seat (12), and the steering gear (1201) is respectively meshedly connected to an arc-shaped rack (1202), and the arc-shaped rack (1202) is respectively relatively glued and connected to the outer wall of the first extension rod (8) and the second extension rod (9) at their upper ends.

7. The sliding device with a protective structure for suspended construction outside the bridge guardrail according to claim 1 is characterized by: The first extension rod (8) forms a sliding telescopic structure in the slide grooves of the inner walls of the left bracket (501) and the right bracket (502) through the connecting seat (12) located at the top thereof, and the first extension rod (8) rotates horizontally at 90 degrees inside the left bracket (501) and the right bracket (502) through the steering gear (1201) and the arc-shaped rack (1202) on the outer wall thereof, and the second extension rod (9) is slidably connected to the slide groove of the inner wall of the first extension rod (8) through the connecting seat (12) located at the top thereof, and the second extension rod (9) rotates horizontally at 90 degrees inside the first extension rod (8) through the steering gear (1201) and the arc-shaped rack (1202) on the outer wall thereof, and the upper and lower groups of steering gears (1201) and the arc-shaped rack (1202) are respectively distributed at an angle of 90 degrees along both sides of the outer walls of the first extension rod (8) and the second extension rod (9).

8. The sliding device with a protective structure for suspended construction outside the bridge guardrail according to claim 1 is characterized by: The first extension rod (8) and the second extension rod (9) are respectively provided with directional rods (15) above the arc-shaped racks (1202) on their surfaces, and the directional rods (15) on the surface of the first extension rod (8) slide in the slide grooves on the inner walls of the left bracket (501) and the right bracket (502) respectively through the horizontal transmission of the first extension rod (8), and the directional rods (15) on the surface of the second extension rod (9) slide in the slide groove on the inner wall of the first extension rod (8) through the horizontal transmission of the second extension rod (9).

9. The sliding device with a protective structure for suspended construction outside the bridge guardrail according to claim 1, characterized in that: The transmission gears (705) form a relative rotation structure through the second bevel gear (707) and the first bevel gear (706) which are vertically distributed to each other, and the operating platform (7) forms a lifting structure along the outer walls of the second bracket (5), the first extension rod (8) and the second extension rod (9) through the transmission gear (705).

10. The sliding device with a protective structure for suspended construction outside the bridge guardrail according to claim 1, characterized in that: L-shaped support rods (708) are respectively welded to the top ends of the fixed bottom plate (701) and the adjustable bottom plate (703), and one side of the L-shaped support rod (708) is connected via a telescopic guardrail (709), and the other side of the L-shaped support rod (708) is connected via a fixed guardrail (710), and the height of the fixed guardrail (710) on the side adjacent to the left bracket (501) and the right bracket (502) is half of the height of the fixed guardrail (710) on the other side.

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