Moving device for highway bridge and tunnel construction
By designing a protective mechanism, including a protective net and a spring buffering system in the bridge and tunnel construction mobile device, the problem of lack of protection above the construction platform in the prior art is solved, and effective buffering of the fallen objects and safety protection of personnel is achieved.
Patent Information
- Application Number
- CN202420528958.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-03-19
AI Technical Summary
During the bridge and tunnel construction process, the existing mobile platform cannot effectively protect the above construction platform, causing the falling object to pose a threat to construction personnel and the platform.
A mobile device including a base plate, a scissor lifting mechanism, a construction platform, and a protective mechanism is designed. The protective mechanism includes a protective top, a protective net, a slide rod, a spring and a locking mechanism. The protective net can buffer the impact force of the fallen object, and the protective top passes through The arc surface design reduces the risk of falling objects popping up.
Effectively protect the staff on the construction platform. The protective net reduces damage to the protective top by the fallen object through deformation and spring buffering. The arc surface design of the protective top further reduces the risk of falling object ejection and ensures personnel safety.
Smart Images
Figure CN222249966U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge and tunnel construction, and more specifically, particularly relates to a mobile device for highway bridge and tunnel construction. Background Art
[0002] During the construction of bridges and tunnels, such as the installation and docking of steel box girders and weld inspection, it is necessary to use auxiliary construction facilities to get close to the construction work surface. Sometimes, due to the constraints of the environmental conditions of the bridge, it is impossible to set up a construction scaffold under the bridge or even if a scaffold is set up, it is not convenient for construction. In this case, a construction platform is needed for auxiliary construction.
[0003] Announcement No. CN216973140U discloses a mobile platform for highway bridge and tunnel construction, including a bottom plate, a first power device fixedly connected to the lower end of the bottom plate, a support device fixedly connected to the front end of the bottom plate, a hydraulic cylinder, a second bearing seat and a fixed bar fixedly connected to the upper end of the bottom plate, a mobile block fixedly connected to the hydraulic cylinder, a scissor frame rotatably connected to the front end of the sliding rod, a scissor frame rotatably connected to the second bearing seat, a support plate fixedly connected to the upper end of the upper end fixed bar, a fence fixedly connected to the upper end of the support plate, a second power device fixedly connected to the lower end of the support plate, and a feeding device slidably connected to the upper end of the support plate. Through the above technical solution, the problem that the mobile platform for highway bridge and tunnel construction in the prior art is not easy to be firmly fixed after moving to a suitable position is solved, and the purpose of making the overall device convenient to be placed on the ground more stably is achieved. The mobile platform in the prior art cannot protect the upper part of the construction platform. During the construction of highway bridges and tunnels, falling objects will threaten the workers working on the construction platform and those nearby. Utility Model Content
[0004] In order to overcome the above-mentioned shortcomings, the utility model aims to provide a mobile device for highway bridge and tunnel construction, which can protect the upper part of the construction platform and thus protect the workers.
[0005] A mobile device for highway bridge and tunnel construction, comprising a bottom plate with universal wheels arranged on the bottom end surface, a scissors-type lifting mechanism hingedly connected to the bottom plate, the upper end of the scissors-type lifting mechanism hingedly connected to a construction platform, the upper end surface of the construction platform is fixedly connected to a bracket and a protective mechanism is arranged on the bracket, the protective mechanism comprises a protective top detachably connected to the bracket, a protective space is formed in the protective top and a connecting mechanism for installing a protective net is arranged in the protective space, the connecting mechanism comprises a fixed cylinder fixedly connected to the bottom wall of the protective space, a sliding rod with a placement groove at the upper end is slidably connected in the fixed cylinder, a connecting ring fixed to the protective net is hung in the placement groove, a locking mechanism is arranged at the placement groove, and a buffer layer is arranged in the protection space.
[0006] Furthermore, the protective net is a nylon rope net.
[0007] Furthermore, the lower end of the sliding rod is located in the fixing tube and a first spring is connected between the lower end of the sliding rod and the inner bottom wall of the fixing tube.
[0008] Furthermore, the locking mechanism includes a pull rod that passes through the upper end of the sliding rod and is movably connected thereto, and a slot that matches the pull rod is formed on the inner wall of the placement groove.
[0009] Furthermore, an installation space is provided at the connection portion between the sliding rod and the pulling rod, a sliding ring fitting the installation space is fixedly connected to the pulling rod, a second spring is sleeved on the pulling rod, one end of the second spring is fixedly connected to the sliding ring, and the other end is fixedly connected to the inner wall of the installation space.
[0010] Furthermore, a U-shaped safety rod is fixedly connected to the bracket.
[0011] Furthermore, the inner wall of the protective top located above the protective net is provided with a curved surface.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] ① In the utility model, workers enter the construction platform to perform work. When falling objects fall from above the construction platform, they will fall into the protection space to protect the workers on the construction platform. The falling objects falling into the protection space will contact the protection net and cause it to deform. The protection net can buffer the impact force of the falling objects, so that when the falling objects contact the bottom wall of the protection space, the damage to the protection top is reduced. In the process of deformation of the protection net after the falling objects contact the protection net, the protection net pulls the sliding rod downward through the connecting ring and squeezes the first spring to further buffer the impact force of the falling objects, thereby further reducing the damage to the protection top after the falling objects contact the bottom wall of the protection space. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0015] Figure 1 It is a schematic diagram of the overall structure of a mobile device for highway bridge and tunnel construction;
[0016] Figure 2 is a schematic diagram of the protection mechanism;
[0017] Figure 3 It is a partial structural disassembly diagram of a mobile device for highway bridge and tunnel construction;
[0018] Figure 4This is a schematic diagram of the anti-collision door;
[0019] Figure 5 is a schematic diagram of the connection structure;
[0020] Figure 6 is a cross-sectional view of the connecting mechanism;
[0021] Figure 7 yes Figure 6 Enlarged view of point A in the middle.
[0022] In the figure: 1, bottom plate; 2, universal wheel; 3, scissor lift mechanism; 4, construction platform; 5, bracket; 6, protection mechanism; 61, protection top; 62, protection space; 63, connecting mechanism; 631, fixing tube; 632, sliding rod; 6321, placement slot; 633, first spring; 634, locking mechanism; 6341, pull rod; 6342, slot; 6343, installation space; 6344, sliding ring; 6345, second spring; 64, protection net; 65, connecting ring; 66, arc surface; 7, lifting ring; 8, safety rod; 9, supporting mechanism; 91, connecting plate; 92, supporting plate; 93, vertical plate; 94, jack; 95, plug rod; 10, anti-collision door; 101, anti-collision door body; 102, limit rod; 103, limit plate; 104, servo motor; 105, threaded rod; 106, limit slot. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment:
[0025] like Figure 1 , Figure 2 , Figure 3As shown, a mobile device for highway bridge and tunnel construction includes a base plate 1, universal wheels 2 for facilitating the movement of the device are arranged at the four corners of the lower end surface of the base plate 1, a power device is arranged on the upper end surface of the base plate 1, the power device is a scissor lift mechanism 3 electrically connected to an external power supply, the scissor lift mechanism 3 is hingedly connected to the upper end surface of the base plate 1 and a construction platform 4 is hingedly connected to its top end, the construction platform 4 is a rectangular parallelepiped with an upper end surface depressed downward to form a construction space, the scissor lift mechanism 3 can be used to lift the construction platform 4 to perform high-altitude operations during bridge and tunnel construction, a bracket 5 is fixedly connected to the upper end surface of the construction platform 4, a protective mechanism 6 for protecting the upper part of the construction platform 4 is arranged on the upper end of the bracket 5, and the protective mechanism 6 includes a protective top 61 detachably connected to the bracket 5 by bolts, the upper end surface of the protective top 61 is recessed downward to form a protective space 62, and connecting mechanisms 63 are arranged at the four corners of the protective space 62. The connecting mechanism 63 is used to install a protective net 64 arranged in the protective space 62. The protective net 64 is a nylon rope net. When there is a falling object falling from the top of the construction platform 4, it will fall into the protective space 62 to protect the workers on the construction platform 4. The falling object falling into the protective space 62 contacts the protective net 64 and causes it to deform. The protective net 64 can buffer the impact force of the falling object, so that when the falling object contacts the bottom wall of the protective space 62, the damage to the protective top 61 caused by the falling object is reduced.
[0026] like Figure 1 , Figure 2 , Figure 3 As shown, the connecting mechanism 63 includes a fixed cylinder 631 fixedly connected to the inner bottom wall of the protective space 62, a sliding rod 632 with an upper end located outside the fixed cylinder 631 is slidably connected, the lower end of the sliding rod 632 is located in the fixed cylinder 631 and fixedly connected to a first spring 633, the other end of the first spring 633 is fixedly connected to the inner bottom wall of the fixed cylinder 631, a placement groove 6321 for hanging a connecting ring 65 fixedly connected to the protective net 64 is provided at the upper end of the sliding rod 632, and a locking mechanism 634 is also provided at the placement groove 6321 to prevent the connecting ring 65 from escaping from the placement groove 6321, and the protective net 64 is connected to the connecting mechanism 63 through the connecting ring 65. When the falling object contacts the protective net 64 and causes the protective net 64 to deform, the protective net 64 pulls the sliding rod 632 downward through the connecting ring 65 and squeezes the first spring 633 to further buffer the impact force of the falling object, thereby further reducing the damage to the protective top 61 after the falling object contacts the bottom wall of the protective space 62. The protective space 62 is located below the protective net 64 and a buffer layer is provided. The buffer layer can be a sponge layer, so that if a falling object with a volume smaller than the mesh of the protective net 64 directly penetrates the mesh, it will first hit the buffer layer to avoid direct contact and damage to the protective top 61.
[0027] like Figure 5 , Figure 6 , Figure 7As shown, the locking mechanism 634 includes a pull rod 6341 that passes through the upper end of the sliding rod 632 and is movably connected thereto, one end of the pull rod 6341 is located in the placement groove 6321, and the inner side wall of the placement groove 6321 is provided with a slot 6342 that matches this end of the pull rod 6341, so that the pull rod 6341 can be inserted into the slot 6342 and prevent the connecting ring 65 from escaping from the placement groove 6321, an installation space 6343 is provided at the connection between the sliding rod 632 and the pull rod 6341, a sliding ring 6344 that fits the installation space 6343 is fixedly connected to the rod body of the pull rod 6341 located in the installation space 6343, and a sleeve is provided on the pull rod 6341, one end of which is fixedly connected to the sliding ring 6344 and the other end of which is fixed to the installation space 63 43, the second spring 6345 is fixedly connected to the inner wall, the second spring 6345 is located on the side of the sliding ring 6344 away from the slot 6342 and the pull rod 6341 is located in the slot 6342 in a normal state. When the protective net 64 needs to be removed and replaced, the pull rod 6341 is pulled to make it disengage from the slot 6342 and leave a space for pulling the connecting ring 65 out of the placement slot 6321, and the pull rod 6341 is released. The second spring 6345 recovers its deformation and is stuck in the slot 6342 again. The outer wall of the protective top 61 is fixedly connected with a lifting ring 7. When it is necessary to clean the inside of the protective top 61, the bolts connecting the protective top 61 and the bracket 5 are removed and the protective top 61 can be placed on the ground for cleaning by using a lifting rope and a crane in conjunction with the lifting ring 7.
[0028] like Figure 1 , Figure 2 , Figure 3 As shown, a U-shaped safety rod 8 is fixedly connected to the bracket 5 , and the safety rod 8 is used for workers to connect safety ropes. The opening of the safety rod 8 faces upward and is arranged in the middle of the bracket 5 , so as not to affect the workers walking in the construction platform 4 .
[0029] like Figure 1 , Figure 2 , Figure 3 As shown, the four inner walls of the protective top 61 above the protective net 64 are all provided with arc surfaces 66. When falling objects hit the arc surfaces 66, they are likely to rebound into the protective space 62, reducing the probability of rebounding to the outside of the device, thereby protecting the staff outside the device.
[0030] like Figure 1 , Figure 2 , Figure 3As shown, a supporting mechanism 9 is also provided on the bottom plate 1, and the supporting mechanism 9 includes a connecting plate 91 that penetrates the bottom plate 1 and is slidably connected thereto, and the lower end of the connecting plate 91 is fixedly connected to a supporting plate 92 for contacting the ground, and also includes a vertical plate 93 fixedly connected to the bottom plate 1, and plug holes 94 are provided on the vertical plate 93 and the connecting plate 91, and a number of plug holes 94 on the connecting plate 91 are provided with equal intervals, and plug rods 95 are inserted into the plug holes 94 on the vertical plate 93 and the connecting plate 91. After moving the device to the specified position, the supporting plate 92 is contacted with the ground by lowering the connecting plate 91, and then the plug rod 95 is passed through the plug holes 94 at appropriate positions on the connecting plate 91 and inserted into the plug holes 94 on the connecting plate 91, so that the supporting mechanism 9 plays a certain supporting role on the device.
[0031] like Figure 4 As shown, an anti-collision door 10 is provided on the construction platform 4, and the anti-collision door 10 includes an anti-collision door body 101 and a limit rod 102 fixedly connected to the inner wall of the construction platform 4, the limit rod 102 penetrates a limit plate 103 fixedly connected to the anti-collision door body 101 and is slidably connected thereto, and a servo motor 104 electrically connected to an external power supply is fixedly installed on the inner wall on the same side of the construction platform 4 and the limit rod 102, and the servo motor 104 is electrically connected to a control unit (not shown in the figure), and the servo motor 104 is electrically connected to the control unit. The output end is fixedly connected with a threaded rod 105 which is threadedly connected to the limit plate 103. A limit groove 106 is set on the inner bottom wall of the construction platform 4. The lower end of the limit plate 103 is slidably set in the limit groove 106. The positive and negative outputs of the output end of the servo motor 104 can realize the sliding opening and closing of the anti-collision door body 101. The cooperation of the limit rod 102, the limit groove and the limit plate 103 can enhance the anti-collision effect of the anti-collision door body 101, and avoid the anti-collision door body 101 from being broken due to collision during construction.
[0032] The working principle of a mobile device for highway bridge and tunnel construction in the present embodiment is: when in use, the device is moved to the construction site, and the device is supported by the supporting mechanism 9 to reduce the probability of rollover. The staff enters the construction platform 4 to perform operations. When there is a falling object falling from the top of the construction platform 4, it will fall into the protective space 62 to protect the staff on the construction platform 4, and the falling object falling into the protective space 62 contacts the protective net 64 and causes it to deform. The protective net 64 can buffer the impact force of the falling object, so that when the falling object contacts the bottom wall of the protective space 62, the damage to the protective top 61 caused by the falling object is reduced. After the falling object contacts the protective net 64 and causes the protective net 64 to deform, the protective net 64 pulls the sliding rod 632 downward through the connecting ring 65 and squeezes the first spring 633 to further buffer the impact force of the falling object, further reducing the damage to the protective top 61 caused by the falling object contacting the bottom wall of the protective space 62.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A mobile device for highway bridge and tunnel construction, characterized in that: The invention comprises a bottom plate (1) with a universal wheel (2) arranged on the bottom end surface, the bottom plate (1) is hingedly connected to a scissor lift mechanism (3), the upper end of the scissor lift mechanism (3) is hingedly connected to a construction platform (4), the upper end surface of the construction platform (4) is fixedly connected to a bracket (5), and the bracket (5) is provided with a protective mechanism (6), the protective mechanism (6) comprises a protective top (61) detachably connected to the bracket (5), a protective space (62) is formed in the protective top (61), and the protective space (62) is provided with A connection mechanism (63) for installing a protective net (64), the connection mechanism (63) comprising a fixing tube (631) fixedly connected to the bottom wall of the protective space (62), a sliding rod (632) having a placement groove (6321) at the upper end being slidably connected in the fixing tube (631), a connection ring (65) fixedly connected to the protective net (64) being hung in the placement groove (6321), a locking mechanism (634) being arranged at the placement groove (6321), and a buffer layer being arranged in the protective space (62).
2. A mobile device for highway bridge and tunnel construction according to claim 1, characterized in that: The protective net (64) is a nylon rope net.
3. A mobile device for highway bridge and tunnel construction according to claim 1, characterized in that: The lower end of the sliding rod (632) is located in the fixing tube (631) and is connected to a first spring (633) between the lower end and the inner bottom wall of the fixing tube (631).
4. A mobile device for highway bridge and tunnel construction according to claim 3, characterized in that: The locking mechanism (634) comprises a pull rod (6341) penetrating the upper end of the sliding rod (632) and movably connected thereto, and a clamping groove (6342) adapted to the pull rod (6341) is provided on the inner wall of the placement groove (6321).
5. A mobile device for highway bridge and tunnel construction according to claim 4, characterized in that: An installation space (6343) is provided at the connection portion between the sliding rod (632) and the pulling rod (6341); a sliding ring (6344) which fits the installation space (6343) is fixedly connected to the pulling rod (6341); a second spring (6345) is sleeved on the pulling rod (6341); one end of the second spring (6345) is fixedly connected to the sliding ring (6344), and the other end is fixedly connected to the inner wall of the installation space (6343).
6. A mobile device for highway bridge and tunnel construction according to claim 1, characterized in that: A U-shaped safety rod (8) is fixedly connected to the bracket (5).
7. A mobile device for highway bridge and tunnel construction according to claim 1, characterized in that: The inner wall of the protective top (61) located above the protective net (64) is provided with a curved surface (66).