A temporary height limiting device for urban smart expressway bridge construction

Abstract

The present invention discloses a temporary height-limiting device for urban intelligent expressway bridge construction, comprising a gantry structure, a height-limiting structure and a lifting structure, wherein the gantry structure is movably connected to the height-limiting structure, the lifting structure is located at the upper part of the gantry structure, and the lifting structure is transmission-connected to the height-limiting structure, and the gantry structure comprises two vertically arranged struts. In the present invention, the winding frame and the motor are respectively installed on the connecting beam through corresponding mounting seats, and since the winding frame is directly connected to the lifting ring on the height-limiting plate through a lifting rope, in order to improve the safety of the winding frame, a spring rod is arranged between the winding frame and the corresponding mounting seat for energy absorption, and the winding frame is connected to the motor through a coupling, and the transmission member constituting the coupling is pin-connected, and the pin-connected portion gives the column pin a certain moving distance through a notch, so that when the winding frame is subjected to force, the displacement distance is compensated by the notch to ensure the stable transmission of the motor and the winding frame.

Description

Technical Field

[0001] The present invention relates to the technical field of height limiting devices for bridge construction, and specifically to a temporary height limiting device for urban smart expressway bridge construction. Background Art

[0002] This year, with the rapid development of the economy, the traffic volume of roads and bridges has continued to increase. In order to ease the pressure of urban road traffic, the construction of viaducts is essential. In the process of building viaducts, some sections of the road will inevitably be blocked, and vehicles and pedestrians can only be relieved by diversion through nearby roads, which brings great traffic pressure to nearby transportation hubs. In order to alleviate the traffic pressure of these transportation hubs, some exits are usually set up in the viaduct construction area, and height-limited frames are set up at the intersections. On the one hand, it is to prevent vehicles that are too high from entering by mistake, so as to damage the exits and cause problems with the support frame; on the other hand, it is also to prevent vehicles that are too high from entering the passage and finding that they cannot pass through, and then it is difficult to exit and cause congestion.

[0003] Existing height limit frames are divided into fixed and movable types. During road and bridge construction, since the height of the passage is not fixed, the movable type is often used. However, since the movable height limit plate is movably connected to the height limit frame, once it is hit, the height limit plate is easily deformed and difficult to smoothly adjust its position on the height limit frame, thus affecting its use.

[0004] Therefore, a temporary height limiting device for urban smart expressway bridge construction is provided to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a temporary height limiting device for the construction of urban smart expressway bridges to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A temporary height limiting device for urban smart expressway bridge construction comprises a gantry structure, a height limiting structure and a lifting structure, wherein the gantry structure is movably connected to the height limiting structure, the lifting structure is located at the upper part of the gantry structure, and the lifting structure is transmission-connected to the height limiting structure;

[0008] The gantry structure includes two vertically arranged support rods, the top ends of the support rods are connected and fixed to the cross beam, and the lifting structure is arranged on the cross beam;

[0009] The height limiting structure comprises a height limiting plate, which is slidably connected to corresponding support rods through buffer structures on both sides, an electronic display is embedded in the upper part of the height limiting plate away from the support rod, and a lifting ring is provided on the top of the height limiting plate;

[0010] The lifting structure comprises a winding frame, a lifting rope on the winding frame is connected to a lifting ring, the winding frame is drivingly connected to a motor on one side, and the winding frame and the motor are fixedly connected via a mounting seat sleeved on a crossbeam.

[0011] Wherein, the support rods are provided with limiting grooves on the separated sides, the inner walls of the limiting grooves are symmetrically provided with clamping strips, and the side surfaces of the support rods corresponding to the height limiting plates are provided with sliding grooves.

[0012] The top end of the support rod is bolted to the cross beam, and the cross beam is composed of a connecting beam and an auxiliary beam at both ends, and the connecting beam is located at both ends of the auxiliary beam and is connected to the support rod.

[0013] Among them, a split-structured limit slider that cooperates with the limit groove is provided on the side of the height limit plate close to the support rod, oil cylinders are provided on the upper and lower parts of the limit slider, and piston rods are provided between the oil cylinders, and the height limit plate and the limit slider are provided with inclined push rods, and one end of the push rods is movably connected to the corresponding oil cylinders.

[0014] Among them, an arc-shaped support plate is provided at the lower part of the height limiting plate corresponding to the slide groove, the roller at the other end of the support plate cooperates with the slide groove, and an anti-collision beam is provided at the lower part of the side of the height limiting plate away from the support rod.

[0015] Wherein, a spring rod is provided between the winding frame and the corresponding mounting seat, the winding frame is transmission-connected to the corresponding motor through a coupling, and the winding frame and the motor are respectively arranged on the corresponding connecting beams.

[0016] Wherein, a compression spring is sleeved on the piston rod, and the length of the compression spring is greater than the minimum distance between the oil cylinders and less than the maximum distance between the oil cylinders.

[0017] Wherein, the piston rod is located inside the corresponding oil cylinder and is sleeved with two pistons, the pistons are arranged at intervals, and the outer sides of the pistons are gap-matched with the inner wall of the oil cylinder.

[0018] Among them, a clamping groove cooperating with the clamping strip is provided on the side of the limiting slider, and a chip removal groove is provided on one side of the limiting slider corresponding to the inner wall of the limiting groove.

[0019] Wherein, the coupling comprises transmission parts which are respectively movably connected to the winding frame and the motor, one of the transmission parts is provided with a pin, and the pin cooperates with a notch at a corresponding position on the other transmission part.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, the support rod and the crossbeam are designed to be a detachable structure, which is convenient for assembly and disassembly. At the same time, in order to adapt to different road widths, the crossbeam is designed to be composed of a connecting beam and an auxiliary beam. When the length of the crossbeam needs to be adjusted, the auxiliary beam of the corresponding length can be replaced without replacing the entire crossbeam, thereby reducing the cost of use.

[0022] 2. In the present invention, a push rod movably connected to the side of the height limit plate is provided on the oil cylinder, and the push rods are all inclined. When the height limit plate is subjected to external force, the height limit plate moves toward the support rod position, and the push rod is squeezed by the height limit plate to act on the oil cylinder and the limit sliding block. The inclined force acting on the oil cylinder and the limit sliding block through the push rod will generate a component force upward or downward along the limit groove, so that the upper and lower parts of the limit sliding block are exerted, and then the oil cylinder is exerted. The force is absorbed by the load inside the oil cylinder, thereby achieving buffering and will not damage the connection between the height limit plate and the support rod. When the force disappears, the compressed support plate is reset, and the distance between the height limit plate and the support rod is restored again, and the separated limit sliding block will also close again to meet the next action.

[0023] 3. In the present invention, the winding frame and the motor are respectively installed on the connecting beam through corresponding mounting seats. Since the winding frame is directly connected to the lifting ring on the height limit plate through a lifting rope, in order to improve the safety of the winding frame, a spring rod is arranged between the winding frame and the corresponding mounting seat for energy absorption, and the winding frame and the motor are connected through a coupling, and the transmission member constituting the coupling is pin-connected, and the pin-connected part gives the column pin a certain moving distance through the notch, so that when the winding frame is subjected to force, the displacement distance is compensated by the notch to ensure stable transmission of the motor and the winding frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the connection relationship between the support rod and the height limiting plate in the present invention;

[0026] Figure 3 It is a side view of the connection part between the support rod and the height limiting plate in the present invention;

[0027] Figure 4 It is a schematic diagram of the connection relationship between the limit slider and the oil cylinder in the present invention;

[0028] Figure 5 It is a schematic diagram of the lifting structure in the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the coupling in the present invention.

[0030] In the figure: 1. gantry structure; 101. support rod; 102. cross beam; 103. limit groove; 104. clamping strip; 105. slide groove; 106. connecting beam; 107. auxiliary beam; 2. height limit structure; 201. height limit plate; 202. buffer structure; 203. electronic display frequency; 204. lifting ring; 205. limit slider; 206. push rod; 207. oil cylinder; 208. piston rod; 209. support plate; 210. roller; 211. anti-collision beam; 212. compression spring; 213. piston; 214. clamping groove; 3. lifting structure; 301. winding frame; 302. motor; 303. mounting seat; 304. spring rod; 305. coupling; 306. transmission member; 307. pin; 308. notch. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-6 , the present invention provides a technical solution:

[0033] A temporary height limiting device for urban smart expressway bridge construction comprises a portal structure 1, a height limiting structure 2 and a lifting structure 3, wherein the portal structure 1 is movably connected to the height limiting structure 2, the lifting structure 3 is located at the upper part of the portal structure 1, and the lifting structure 3 is transmission-connected to the height limiting structure 2.

[0034] The gantry structure 1 includes two vertically arranged support rods 101 , the top ends of the support rods 101 are connected and fixed to a cross beam 102 , and the lifting structure 3 is arranged on the cross beam 102 .

[0035] The height limiting structure 2 includes a height limiting plate 201 , which is slidably connected to the corresponding support rods 101 through buffer structures 202 on both sides. An electronic display screen 203 is embedded in the upper part of the height limiting plate 201 away from the support rods 101 , and a lifting ring 204 is provided on the top of the height limiting plate 201 .

[0036] The lifting structure 3 includes a winding frame 301 , a lifting rope on the winding frame 301 is connected to the lifting ring 204 , the winding frame 301 is transmission-connected to a motor 302 on one side, and the winding frame 301 and the motor 302 are fixedly connected via a mounting seat 303 sleeved on the crossbeam 102 .

[0037] The support rod 101 and the cross beam 102 can be detachably connected to facilitate assembly and disassembly. At the same time, in order to adapt to different road widths, the cross beam 102 is designed to be composed of a connecting beam 106 and an auxiliary beam 107. When the length of the cross beam 102 needs to be adjusted, it is sufficient to replace the auxiliary beam 107 of the corresponding length without replacing the entire cross beam 102, thereby reducing the cost of use.

[0038] The limit groove 103 on the support rod 101 cooperates with the limit slider 205 of the split structure, and the clamping strip 104 cooperates with the clamping groove 214, so that the limit slider 205 slides up and down along the limit groove 103, and the corresponding parts on the limit slider 205 are respectively provided with oil cylinders 207, and are arranged up and down. The two oil cylinders 207 are connected by a piston rod 208, and a compression spring 212 for buffering is provided between the piston rods 208 to avoid damage to the limit slider 205 and the piston rod 208 when the two oil cylinders 207 are reset.

[0039] When the height limit plate 201 is subjected to an external force, the height limit plate 201 moves toward the support rod 101, and the push rod 206 is squeezed by the height limit plate 201 to act on the cylinder 207 and the limit slider 205. The inclined force acting on the cylinder 207 and the limit slider 205 through the push rod 206 will generate a component force upward or downward along the limit groove 103, so that the upper and lower parts of the limit slider 205 are forced, and then the cylinder 207 forces the force. The force is absorbed by the load inside the cylinder 207, thereby achieving buffering and will not damage the connection between the height limit plate 201 and the support rod 101. When the force disappears, the compressed support plate 209 is reset, and the distance between the height limit plate 201 and the support rod 101 is restored again, and the separated limit slider 205 will also close again to meet the next action.

[0040] The winding frame 301 and the motor 302 are respectively installed on the connecting beam 106 through the corresponding mounting seats 303. Since the winding frame 301 is directly connected to the lifting ring 204 on the height limiting plate 201 through a lifting rope, in order to improve the safety of the winding frame 301, a spring rod 304 is arranged between the winding frame 301 and the corresponding mounting seat 303 for energy absorption, and the winding frame 301 is connected to the motor 302 through a coupling 305, and the transmission member 306 constituting the coupling 305 is pin-connected, and the pin-connected part gives the column pin 307 a certain moving distance through the notch 308, so that when the winding frame 301 is subjected to force, the displacement distance is compensated by the notch 308 to ensure the stable transmission of the motor 302 and the winding frame 301.

[0041] Among them, a limit groove 103 is provided on the separated side of the support rod 101, and a clamping strip 104 is symmetrically provided on the inner wall of the limit groove 103. A slide groove 105 is provided on the side of the support rod 101 corresponding to the height limit plate 201. The limit groove 103 is used to cooperate with the limit slider 205, and the clamping strip 104 cooperates with the clamping groove 214 on the limit slider 205 to prevent the limit slider 205 from derailing. Since the elastic potential energy is always maintained on the support plate 209, in order to prevent the support plate 209 from having friction loss with the support rod 101 during the movement of the height limit plate 201, the slide groove 105 is set to cooperate with the roller 210 at the end of the support plate 209.

[0042] Among them, the top end of the support rod 101 is bolted to the crossbeam 102, and the crossbeam 102 is composed of a connecting beam 106 and an auxiliary beam 107 at both ends. The connecting beam 106 is located at both ends of the auxiliary beam 107 and is connected to the support rod 101. The crossbeam 102 is designed to be detachable and connected, which is convenient for assembly and disassembly, and can also adapt to different road widths. When the length of the crossbeam 102 needs to be adjusted, it is only necessary to replace the auxiliary beam 107 of the corresponding length, without replacing the entire crossbeam 102, thereby reducing the cost of use.

[0043] Among them, a split-structured limit slider 205 that cooperates with the limit groove 103 is provided on the side of the height limit plate 201 close to the support rod 101, and an oil cylinder 207 is provided on the upper and lower parts of the limit slider 205, and a piston rod 208 is provided between the oil cylinders 207. The height limit plate 201 and the limit slider 205 are provided with an inclined push rod 206, and one end of the push rod 206 is movably connected with the corresponding oil cylinder 207 respectively. The split-structured limit slider 205 is connected through the oil cylinder 207 and the piston rod 208. Under normal circumstances, the limit slider 205 is in a closed state through the force of the support plate 209, and when subjected to force, the push rod 206 guides the oil cylinder 207 and the limit slider 205 that are tilted by the force, and divides the limit slider 205 into blocks. At this time, the oil cylinder 207 and the piston rod 208 cooperate to absorb the force.

[0044] Among them, an arc-shaped support plate 209 is provided at the lower part of the height limit plate 201 corresponding to the slide groove 105, and the roller 210 at the other end of the support plate 209 cooperates with the slide groove 105. An anti-collision beam 211 is provided at the lower part of the height limit plate 201 away from the support rod 101. The elastic potential energy is always maintained on the support plate 209. In order to prevent the support plate 209 from friction loss with the support rod 101 during the movement of the height limit plate 201, the slide groove 105 is set to cooperate with the roller 210 at the end of the support plate 209, and the normal support plate 209 keeps the posture of the height limit plate 201 stable, and closes the limit slider 205 to form a protective state.

[0045] Among them, a spring rod 304 is provided between the winding frame 301 and the corresponding mounting seat 303, the winding frame 301 is connected to the corresponding motor 302 through a coupling 305, and the winding frame 301 and the motor 302 are respectively arranged on the corresponding connecting beam 106, and the winding frame 301 and the motor 302 are respectively installed on the connecting beam 106 through the corresponding mounting seat 303. Since the winding frame 301 is directly connected to the lifting ring 204 on the height limiting plate 201 through a lifting rope, in order to improve the safety of the winding frame 301, a spring rod 304 is provided between the winding frame 301 and the corresponding mounting seat 303 for energy absorption.

[0046] Among them, a compression spring 212 is sleeved on the piston rod 208, and the length of the compression spring 212 is greater than the minimum spacing between the cylinders 207 and less than the maximum spacing between the cylinders 207, so as to avoid collision between the limit slider 205 and collision between the piston rod 208 and the cylinder 207 when the two cylinders 207 are reset, thereby preventing damage to the limit slider 205 and the piston rod 208 and the cylinder 207.

[0047] Among them, two pistons 213 are sleeved on the piston rod 208 located inside the corresponding oil cylinder 207. The pistons 213 are arranged at intervals, and the outer side of the piston 213 is matched with the inner wall gap of the oil cylinder 207. When the piston rod 208 and the oil cylinder 207 are relatively displaced, the position of the piston 213 will change, and during the movement of the piston 213, the oil will move to the other side of the piston 213 through the gap between the piston 213 and the inner wall of the oil cylinder 207, thereby achieving pressure balance, and the resistance when the piston rod 208 and the oil cylinder 207 move is increased, thereby suppressing the effect of external force.

[0048] Among them, a slot 214 cooperating with the clamping strip 104 is provided on the side of the limit slider 205, and a chip removal groove is provided on one side of the inner wall of the limit slider 205 corresponding to the limit slot 103. The clamping strip 104 cooperates with the slot 214 on the limit slider 205 to prevent the limit slider 205 from derailing. The chip removal groove is used to discharge foreign matter generated by the friction between the limit slider 205 and the slide groove 105.

[0049] Among them, the coupling 305 includes transmission parts 306 which are movably connected to the winding frame 301 and the motor 302 respectively. A pin 307 is provided on one of the transmission parts 306, and the pin 307 cooperates with a notch 308 at a corresponding position on the other transmission part 306. When the winding frame 301 is subjected to force, the displacement distance is compensated by the notch 308 to ensure stable transmission of the motor 302 and the winding frame 301.

[0050] Working principle: The support rod 101 and the crossbeam 102 can be detachably connected to facilitate assembly and disassembly. At the same time, in order to adapt to different road widths, the crossbeam 102 is designed to be composed of a connecting beam 106 and an auxiliary beam 107. When the length of the crossbeam 102 needs to be adjusted, the auxiliary beam 107 of the corresponding length can be replaced without replacing the entire crossbeam 102, thereby reducing the cost of use.

[0051] The limit groove 103 on the support rod 101 cooperates with the limit slider 205 of the split structure, and the clamping strip 104 cooperates with the clamping groove 214, so that the limit slider 205 slides up and down along the limit groove 103, and the corresponding parts on the limit slider 205 are respectively provided with oil cylinders 207, and are arranged up and down. The two oil cylinders 207 are connected by a piston rod 208, and a compression spring 212 for buffering is provided between the piston rods 208 to avoid damage to the limit slider 205 and the piston rod 208 when the two oil cylinders 207 are reset.

[0052] When the height limit plate 201 is subjected to an external force, the height limit plate 201 moves toward the support rod 101, and the push rod 206 is squeezed by the height limit plate 201 to act on the cylinder 207 and the limit slider 205. The inclined force acting on the cylinder 207 and the limit slider 205 through the push rod 206 will generate a component force upward or downward along the limit groove 103, so that the upper and lower parts of the limit slider 205 are forced, and then the cylinder 207 forces the force. The force is absorbed by the load inside the cylinder 207, thereby achieving buffering and will not damage the connection between the height limit plate 201 and the support rod 101. When the force disappears, the compressed support plate 209 is reset, and the distance between the height limit plate 201 and the support rod 101 is restored again, and the separated limit slider 205 will also close again to meet the next action.

[0053] The winding frame 301 and the motor 302 are respectively installed on the connecting beam 106 through the corresponding mounting seats 303. Since the winding frame 301 is directly connected to the lifting ring 204 on the height limiting plate 201 through a lifting rope, in order to improve the safety of the winding frame 301, a spring rod 304 is arranged between the winding frame 301 and the corresponding mounting seat 303 for energy absorption, and the winding frame 301 is connected to the motor 302 through a coupling 305, and the transmission member 306 constituting the coupling 305 is pin-connected, and the pin-connected part gives the column pin 307 a certain moving distance through the notch 308, so that when the winding frame 301 is subjected to force, the displacement distance is compensated by the notch 308 to ensure the stable transmission of the motor 302 and the winding frame 301.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temporary height limiting device for urban smart expressway bridge construction, comprising a gantry structure (1), a height limiting structure (2) and a lifting structure (3), characterized in that: The gantry structure (1) is movably connected to the height-limiting structure (2); the lifting structure (3) is located on the upper part of the gantry structure (1); and the lifting structure (3) is drivingly connected to the height-limiting structure (2); The gantry structure (1) comprises two vertically arranged support rods (101), the top ends of the support rods (101) are connected and fixed to a crossbeam (102), and the lifting structure (3) is arranged on the crossbeam (102); The height limiting structure (2) comprises a height limiting plate (201), wherein the height limiting plate (201) is slidably connected to corresponding support rods (101) via buffer structures (202) on both sides, an electronic display screen (203) is embedded in the upper part of the height limiting plate (201) away from the support rod (101), and a lifting ring (204) is provided on the top of the height limiting plate (201); The lifting structure (3) comprises a winding frame (301), a suspension rope on the winding frame (301) is connected to a suspension ring (204), the winding frame (301) is transmission-connected to a motor (302) on one side, and the winding frame (301) and the motor (302) are both fixedly connected via a mounting seat (303) sleeved on the crossbeam (102); The support rod (101) is provided with a limiting groove (103) on one side away from the other side, the inner wall of the limiting groove (103) is symmetrically provided with a clamping strip (104), and the side surface of the support rod (101) corresponding to the height limiting plate (201) is provided with a sliding groove (105); The top end of the support rod (101) is bolted to the cross beam (102), the cross beam (102) is composed of a connecting beam (106) and an auxiliary beam (107) at both ends, the connecting beam (106) being located at both ends of the auxiliary beam (107) and connected to the support rod (101); A split-type limit slider (205) cooperating with the limit groove (103) is provided on one side of the height limit plate (201) close to the support rod (101); oil cylinders (207) are provided on the upper and lower parts of the limit slider (205); and a piston rod (208) is provided between the oil cylinders (207); an inclined push rod (206) is provided on the height limit plate (201) and the limit slider (205); one end of the push rod (206) is movably connected to the corresponding oil cylinder (207); A support plate (209) with an arc structure is provided at the lower part of the height limiting plate (201) corresponding to the slide groove (105); a roller (210) at the other end of the support plate (209) cooperates with the slide groove (105); and an anti-collision beam (211) is provided at the lower part of the side of the height limiting plate (201) away from the support rod (101); A spring rod (304) is provided between the winding frame (301) and the corresponding mounting seat (303); the winding frame (301) is transmission-connected to the corresponding motor (302) via a coupling (305); and the winding frame (301) and the motor (302) are respectively provided on corresponding connecting beams (106); A compression spring (212) is sleeved on the piston rod (208), and the length of the compression spring (212) is greater than the minimum distance between the oil cylinders (207) and less than the maximum distance between the oil cylinders (207); The piston rod (208) is located inside the corresponding oil cylinder (207) and is sleeved with two pistons (213). The pistons (213) are arranged at intervals, and the outer sides of the pistons (213) are gap-matched with the inner wall of the oil cylinder (207); A clamping groove (214) cooperating with the clamping strip (104) is provided on the side of the limiting slide block (205), and a chip removal groove is provided on one side of the inner wall of the limiting slide block (205) corresponding to the limiting groove (103).

2. According to claim 1, a temporary height limiting device for urban smart expressway bridge construction is characterized in that: The coupling (305) comprises transmission members (306) movably connected to the winding frame (301) and the motor (302), wherein one of the transmission members (306) is provided with a pin (307), and the pin (307) cooperates with a notch (308) at a corresponding position on the other transmission member (306).

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