Temporary height limiting frame for roads and bridges

Abstract

The utility model relates to the technical field of height limiting frames for roads and bridges, and discloses a temporary height limiting frame for roads and bridges, which comprises two groups of frame body assemblies, movable fixing assemblies arranged on the side surfaces of the two groups of frame body assemblies, and a movable height limiting assembly arranged on the upper side of one group of frame body assembly. And a movable matching component is arranged on the upper side of the other group of frame body components. When the damaged height limiting belt is repaired, a worker reaches the position of the protective cover through the lifting device, opens the protective cover, takes down the damaged height limiting belt through sliding of the mounting block and takes down the protective plate, temporary height limiting is achieved by pulling the standby height limiting belt to the side face of the fixing block through the operation, and then other parts are repaired, replaced and maintained. In this way, the height limiting frame is fast to mount and dismount, can be used in cooperation with any span, can still play a role in height limiting during maintenance, and guarantees traffic safety.

Description

Technical Field

[0001] The utility model relates to the technical field of height-limiting frames for roads and bridges, in particular to a temporary height-limiting frame for roads and bridges. Background Art

[0002] During the construction and maintenance of roads and bridges, some sections of the road will inevitably be blocked. Vehicles and pedestrians can only be diverted through nearby roads, which will bring 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 front of the construction area, and height limit frames are set up at the intersections, mainly to prevent vehicles that are too high from entering the passage and finding it impossible to pass, and then being difficult to exit and causing congestion;

[0003] The current height limit frame is mainly an integrated U-frame structure, which ensures a certain height limit effect through the top structure of the U-frame and the height limit sign. However, due to the fixing pins of the structure itself and the large surface of the U-shaped structure, it cannot be quickly installed or stored after disassembly, and cannot be used well as a temporary height limit. In addition, the U-shaped structure has a certain span and cannot be well used at road intersections of different widths. After the height limit plate is damaged, it cannot play a height limit role during the repair and maintenance process, which may cause safety hazards. For this reason, we propose a temporary height limit frame for roads and bridges. Utility Model Content

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a temporary height-limiting frame for roads and bridges.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a temporary height-limiting frame for a road bridge, comprising two sets of frame components, the sides of the two sets of frame components are provided with movable fixing components, the upper side of one set of frame components is provided with a movable height-limiting component, and the upper side of the other set of frame components is provided with a movable matching component;

[0006] The frame assembly includes a fixable mounting frame, and a movable block and a connecting rod are arranged inside the mounting frame;

[0007] The height limiting component includes a rotatable height limiting belt, and a fixable Velcro is provided on the side of the height limiting belt;

[0008] The matching component includes a second height-limiting block fixedly mounted on the upper side of the internal connecting rod of another group of frame components, and a fixing block is symmetrically fixedly mounted on the side surface of the second height-limiting block.

[0009] Preferably, the frame assembly includes a mounting frame, a movable groove is opened inside the mounting frame, a movable rod is movably installed inside the movable groove, a movable block is threadedly sleeved on the side of the movable rod, a connecting rod is equidistantly fixedly installed on the upper side of the movable block, a limit block is fixedly sleeved on the side of the movable rod corresponding to the lower side of the movable block, a first planetary gear is fixedly sleeved on the side of the movable rod corresponding to the position below the limit block, a second planetary gear is meshed with the side of the first planetary gear, and an adjusting rod is fixedly installed on the side of the second planetary gear.

[0010] Preferably, the frame assembly also includes an adjustment block movably sleeved on the side of the adjustment rod, a support tube is fixedly connected between the adjustment block and the adjustment rod and the support tube is sleeved on the side of the adjustment rod, and slots are equidistantly provided on the sides of the adjustment rod and the mounting frame corresponding to the positions of the adjustment blocks, and blocks are fixedly installed equidistantly on both sides of the adjustment block corresponding to the slots.

[0011] Preferably, the height limiting assembly includes a first height limiting block fixedly mounted on the upper side of the connecting rod, a rotatable reset block is arranged inside the first height limiting block, a reset torsion spring is fixedly mounted between the bottom wall inside the first height limiting block and the side of the reset block, a mounting rod is fixedly mounted on the upper side of the reset block, a mounting groove is opened on the upper side of the mounting rod, two groups of mounting blocks are equidistantly arranged inside the mounting groove, a height limiting belt is fixedly connected to the side of the mounting block, Velcro is fixedly installed on the side of the height limiting belt away from the mounting block, a protective plate is arranged between the two groups of height limiting belts, a constraint groove is opened on the side of the first height limiting block, a cleaning block is fixedly mounted equidistantly inside the constraint groove, and a protective cover is movably mounted on the upper side of the first height limiting block.

[0012] Preferably, the first height limiting block is a circular block with a convex circular groove on the upper side, the mounting groove is a rectangular groove with a "T"-shaped cross-section, the mounting block is a "T"-shaped block, the height limiting belt is a turbine-shaped rectangular belt with rough edges on one side, and the cleaning block is a rectangular block made of rubber.

[0013] Preferably, the fixing assembly includes connecting grooves equidistantly arranged on the side of the mounting frame, a fixing rod is movably installed inside the connecting groove, sliding grooves are arranged on the two inner walls of the connecting groove corresponding to the positions of the fixing rod, a sliding block is movably installed inside the sliding groove, a first limiting groove penetrating the fixing rod and the mounting frame is arranged on the side of the fixing rod, a second limiting groove penetrating the mounting frame is equidistantly arranged on the inner wall of the connecting groove corresponding to the position of the fixing rod, and a limiting rod is movably installed inside the first limiting groove.

[0014] Preferably, the fixing assembly also includes a deformation cylinder movably sleeved on the side of the limit rod, the deformation cylinder is a cylinder made of rubber material, support bars are fixedly installed in a circular array at equal intervals between the limit rod and the deformation cylinder, the support bars are hollow arc-shaped bars made of elastic plastic material, and a pull block is fixedly installed on the side of the limit rod. Beneficial Effects

[0015] The utility model provides a temporary height limit frame for roads and bridges, which has the following beneficial effects:

[0016] (1) The temporary height limit frame for the road bridge is made by coordinating the frame assembly, the height limit assembly and the internal parts of the matching assembly. The protective cover is opened to place the height limit belt on the upper side of the protective plate in the inner position of the constraint groove. The height limit belt is passed through the inside of the fixing block and fixed to the side of the height limit belt by Velcro. The protective cover is covered and the two sets of mounting frames are placed vertically. The adjustment block is pulled by both hands to slide and squeeze the support cylinder on the side of the adjustment rod, so that the card block is connected to the inner position of the card slot on the side of the adjustment rod. The rotating card block drives the adjustment rod to rotate accordingly, so that the second planetary gear is engaged with the first planetary gear to drive the movable rod to rotate. The movable rod rotates the thread to cooperate with the movable block. Under the constraint of the connecting rod, The movable block moves up and down inside the movable groove, the connecting rod drives the first height limit block and the second height limit block to adjust the height position, fix one set of mounting frames, pull the other set of mounting frames to make the height limit belt rotate and stretch in a straight line state, the mounting rod drives the reset block to rotate inside the first height limit block to deform the reset torsion spring, thus the setting of the height limit frame is completed, after use, the height limit belt is removed from the fixed block position, and the reset block is driven to rotate and reset under the deformation force of the reset torsion spring, so that the mounting rod drives the height limit belt to reset and wrap around the side position of the mounting rod, and at the same time, the cleaning block plays a cleaning constraint on the height limit belt, and the two sets of mounting frames can be placed together and fixed together by winding the height limit belt;

[0017] When the height limit belt is damaged for repair, the personnel reach the protective cover position through the lifting device, open the protective cover, slide the damaged height limit belt through the installation block, remove the protective plate through the above operations, and pull the spare height limit belt to the side of the fixed block to temporarily limit the height. Then other components can be repaired, replaced and maintained. In this way, the height limit frame can be installed and disassembled quickly, and can be used with any span. At the same time, it can still play a height limit role during repair and maintenance to ensure traffic safety.

[0018] (2) The temporary height limit frame for road bridges is fixed by the internal components of the assembly. After the mounting frame is placed vertically, the limit rod is pulled out of the first limit slot by the pull block, so that the fixing rod can slide in the slide slot to adjust the angle position. The limit rod is inserted into the second limit slot on the upper side of the corresponding fixing rod. The fixing assembly is deformed and fit in the second limit slot through the deformation support of the support bar. The limit rod limits the fixing rod. This makes the stability better and ensures the use of the height limit frame on relatively uneven roads. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a partial structural schematic diagram of the mounting frame of the utility model;

[0023] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure;

[0024] Figure 4 For this utility model Figure 2 Middle B is a schematic diagram of the enlarged structure;

[0025] Figure 5 For this utility model Figure 2 Middle C is a schematic diagram of the enlarged structure;

[0026] Figure 6 For this utility model Figure 2 Middle D is a schematic diagram of the enlarged structure.

[0027] Legend:

[0028] 1. Frame assembly; 11. Mounting frame; 12. Movable slot; 13. Movable rod; 14. Movable block; 141. Connecting rod; 15. Limit block; 16. First planetary gear; 17. Second planetary gear; 18. Adjusting rod; 181. Adjusting block; 182. Support cylinder; 183. Slot; 184. Block; 2. Height limiting assembly; 21. First height limiting block; 22. Reset block; 221. Reset torsion spring; 23. Mounting rod; 231. Mounting slot; 232. Mounting block; 233. Height limiting belt; 234. Velcro; 24. Protection plate; 25. Constraint groove; 251. Cleaning block; 26. Protection cover; 3. Matching assembly; 31. Second height limiting block; 32. Fixed block; 4. Fixed assembly; 41. Connecting groove; 42. Fixed rod; 43. Slide groove; 44. Slider; 45. First limiting groove; 451. Second limiting groove; 46. Limiting rod; 47. Deformation cylinder; 48. Support bar; 49. Pull block. DETAILED DESCRIPTION

[0029] 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.

[0030] A temporary height limit frame for road bridges, such as Figure 1 - Figure 6As shown, it includes two groups of frame components 1, and movable fixing components 4 are arranged on the sides of the two groups of frame components 1, and a movable height limiting component 2 is arranged on the upper side of one group of frame components 1, and a movable matching component 3 is arranged on the upper side of the other group of frame components 1. The frame component 1 includes a mounting frame 11, and the mounting frame 11 is a cylindrical frame. A movable groove 12 is opened inside the mounting frame 11, and the movable groove 12 is a circular ring groove with a cross-shaped cross section. A movable rod 13 is movably installed inside the movable groove 12, and the movable rod 13 is a cylindrical A threaded rod, a movable block 14 is threadedly sleeved on the side of the movable rod 13 and the movable block 14 is arranged in the inner position of the movable groove 12. The movable block 14 is a circular ring block with a threaded inner side. A connecting rod 141 is fixedly installed equidistantly on the upper side of the movable block 14 and the connecting rod 141 extends through the mounting frame 11. The connecting rod 141 is a circular rod. A limit block 15 is fixedly sleeved on the side of the movable rod 13 corresponding to the lower side of the movable block 14. The limit block 15 is a circular ring block and is fixed on the side of the movable rod 13 corresponding to the position below the limit block 15 A first planetary gear 16 is sleeved, and the first planetary gear 16 is a circular bevel gear. A second planetary gear 17 is meshed on the side of the first planetary gear 16, and the second planetary gear 17 is a conical gear. An adjusting rod 18 is fixedly installed on the side of the second planetary gear 17, and the adjusting rod 18 extends through the mounting frame 11. The adjusting rod 18 is a round rod with a "T"-shaped cross section. An adjusting block 181 is movably sleeved on the side of the adjusting rod 18, and the adjusting block 181 is arranged between the mounting frame 11 and the side of the adjusting rod 18. The adjusting block 181 is a circular ring block, a support cylinder 182 is fixedly connected between the adjusting block 181 and the adjusting rod 18, and the support cylinder 182 is sleeved on the side of the adjusting rod 18, the support cylinder 182 is a spring steel cylinder with a continuous "W"-shaped cross section, and a card slot 183 is equidistantly provided on the side of the adjusting rod 18 and the mounting frame 11 corresponding to the position of the adjusting block 181, and the card slot 183 is a rectangular slot, and card blocks 184 are equidistantly fixedly installed on both sides of the adjusting block 181 corresponding to the card slot 183, and the card block 184 is a rectangular block;

[0031] Furthermore, the height limiting assembly 2 includes a first height limiting block 21 fixedly mounted on the upper side of the connecting rod 141, the first height limiting block 21 being a circular block with a convex circular groove on the upper side, a rotatable reset block 22 being arranged inside the first height limiting block 21, the reset block 22 being a circular block, a reset torsion spring 221 being fixedly mounted between the inner bottom wall of the first height limiting block 21 and the side surface of the reset block 22, the reset torsion spring 221 being the prior art and not described in detail here, a mounting rod 23 being fixedly mounted on the upper side of the reset block 22, the mounting rod 23 being a circular rod, a mounting groove 231 being arranged on the upper side of the mounting rod 23, the mounting groove 231 being a rectangular groove with a "T"-shaped cross section, two groups of mounting blocks 232 being equidistantly arranged inside the mounting groove 231, the mounting blocks 232 being "T"-shaped blocks, The side of 232 is fixedly connected to the height limiting belt 233, which is a turbine-shaped rectangular belt with a rough edge on one side. A Velcro 234 is fixedly installed on the side of the height limiting belt 233 away from the mounting block 232, and the Velcro 234 is attached to the side position of the height limiting belt 233. The Velcro 234 is a prior art and will not be described in detail here. A protective plate 24 is arranged between the two sets of height limiting belts 233, and the protective plate 24 is movably sleeved on the side position of the mounting rod 23. The protective plate 24 is a circular plate, and a constraint groove 25 is opened on the side of the first height limiting block 21. The constraint groove 25 is a rectangular groove. A cleaning block 251 is equidistantly fixedly installed inside the constraint groove 25. The cleaning block 251 is a rectangular block made of rubber. A protective cover 26 is movably installed on the upper side of the first height limiting block 21, and the protective cover 26 is a circular cover.

[0032] Further, the matching component 3 includes a second height limiting block 31 fixedly mounted on the upper side of the internal connecting rod 141 of another set of frame components 1, the second height limiting block 31 is a circular block, and a fixed block 32 is symmetrically fixedly mounted on the side of the second height limiting block 31, and the fixed block 32 is a "C"-shaped block;

[0033] Further, the fixing assembly 4 includes a connecting groove 41 equidistantly provided on the side of the mounting frame 11, the connecting groove 41 is a rectangular groove, a fixing rod 42 is movably installed inside the connecting groove 41, the fixing rod 42 is a rectangular rod, and a slide groove 43 is provided on the two wall surfaces inside the connecting groove 41 corresponding to the position of the fixing rod 42, the slide groove 43 is a rectangular groove, a slider 44 is movably installed inside the slide groove 43, and the slider 44 penetrates the fixing rod 42 and is fixedly connected thereto, the slider 44 is a cylindrical block, and a first limiting groove 45 penetrating the fixing rod 42 and the mounting frame 11 is provided on the side of the fixing rod 42, the first limiting groove 45 is a cylindrical groove, and the inner wall of the connecting groove 41 corresponds to the position of the fixing rod 42 A second limiting groove 451 that passes through the mounting frame 11 is equidistantly provided, the second limiting groove 451 is a cylindrical groove and is the same size as the first limiting groove 45, a limiting rod 46 is movably installed inside the first limiting groove 45, the limiting rod 46 is a cylindrical rod, a deformation cylinder 47 is movably sleeved on the side of the limiting rod 46 and the deformation cylinder 47 fits into the inner wall position of the first limiting groove 45, the deformation cylinder 47 is a cylinder made of rubber, support bars 48 are fixedly installed in a circular array equidistantly between the limiting rod 46 and the deformation cylinder 47, the support bar 48 is a hollow arc bar made of elastic plastic material, and a pull block 49 is fixedly installed on the side of the limiting rod 46, and the pull block 49 is a U-shaped block.

[0034] The working principle of this utility model:

[0035] During normal use, the protective cover 26 is opened to place the height limiting belt 233 on the upper side of the protective plate 24 in the inner position of the constraint groove 25, and the height limiting belt 233 is passed through the interior of the fixing block 32 and fixed to the side of the height limiting belt 233 through the Velcro 234. The protective cover 26 is covered to place the two sets of mounting frames 11 vertically, and the adjustment block 181 is pulled by both hands to slide and squeeze the support cylinder 182 on the side of the adjustment rod 18, so that the clamping block 184 is clamped in the inner position of the clamping groove 183 on the side of the adjustment rod 18, and the rotating clamping block 184 drives the adjustment rod 18 to rotate accordingly, so that the second planetary gear 17 is meshed with the first planetary gear 16 to drive the movable rod 13 to rotate, and the movable rod 13 rotates to thread and cooperate with the movable block 14, so that the movable block 14 is restrained by the connecting rod 141 so that the movable block 14 is moved upward in the movable groove 12 The lower moving position, the connecting rod 141 drives the first height limit block 21 and the second height limit block 31 to adjust the height position, fix one set of mounting frames 11, pull the other set of mounting frames 11 to make the height limit belt 233 rotate and stretch into a straight line state, the mounting rod 23 drives the reset block 22 to rotate inside the first height limit block 21 to deform the reset torsion spring 221, thus the setting of the height limit frame is completed, after use, the height limit belt 233 is removed from the position of the fixed block 32, and the reset block 22 is driven to rotate and reset under the deformation force of the reset torsion spring 221, so that the mounting rod 23 drives the height limit belt 233 to reset and wrap around the side position of the mounting rod 23, and at the same time, the cleaning block 251 plays a cleaning constraint on the height limit belt 233, and the two sets of mounting frames 11 are placed together and can also be fixed together by winding the height limit belt 233.

[0036] When the height limit belt 233 is damaged and needs repair, the personnel reach the position of the protective cover 26 through the lifting device, open the protective cover 26, slide and remove the damaged height limit belt 233 through the mounting block 232, remove the protective plate 24, and perform the above operations. The spare height limit belt 233 is pulled to the side of the fixed block 32 to temporarily limit the height, and then other components are repaired, replaced and maintained.

[0037] When in use, after the mounting frame 11 is placed vertically, the limit rod 46 is pulled out of the internal position of the first limit groove 45 by the pull block 49, so that the fixing rod 42 can slide in the sliding groove 43 through the slider 44 to adjust the angle position, and the limit rod 46 is inserted into the internal position of the second limit groove 451 closest to the upper side of the corresponding fixing rod 42. The fixing component 4 is deformed and supported by the support bar 48 so that it is fixed in the second limit groove 451, and the limit rod 46 limits the fixing rod 42.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A temporary height-limiting frame for a road bridge, comprising two sets of frame assemblies (1), the sides of the two sets of frame assemblies (1) being provided with movable fixing assemblies (4), the upper side of one set of frame assemblies (1) being provided with a movable height-limiting assembly (2), and the upper side of the other set of frame assemblies (1) being provided with a movable matching assembly (3); Features: The frame assembly (1) comprises a fixable mounting frame (11), wherein a movable movable block (14) and a connecting rod (141) are arranged inside the mounting frame (11); The height limiting component (2) comprises a rotatable height limiting belt (233), and a fixable Velcro (234) is provided on the side of the height limiting belt (233); The matching component (3) comprises a second height limiting block (31) fixedly mounted on the upper side of an internal connecting rod (141) of another set of frame components (1), and a fixing block (32) is symmetrically fixedly mounted on the side of the second height limiting block (31).

2. A temporary height limit frame for roads and bridges according to claim 1, Features: The frame assembly (1) comprises a mounting frame (11), a movable groove (12) is provided inside the mounting frame (11), a movable rod (13) is movably installed inside the movable groove (12), a movable block (14) is threadedly sleeved on the side of the movable rod (13), a connecting rod (141) is fixedly installed at an equal distance on the upper side of the movable block (14), a limit block (15) is fixedly sleeved on the side of the movable rod (13) corresponding to the lower side of the movable block (14), a first planetary gear (16) is fixedly sleeved on the side of the movable rod (13) corresponding to the position below the limit block (15), a second planetary gear (17) is meshedly provided on the side of the first planetary gear (16), and an adjustment rod (18) is fixedly installed on the side of the second planetary gear (17).

3. A temporary height limit frame for roads and bridges according to claim 2, Features: The frame assembly (1) further comprises an adjustment block (181) movably sleeved on a side of the adjustment rod (18); a support tube (182) is fixedly connected between the adjustment block (181) and the adjustment rod (18), and the support tube (182) is sleeved on a side of the adjustment rod (18); slots (183) are equidistantly provided on the sides of the adjustment rod (18) and the mounting frame (11) corresponding to positions of the adjustment block (181); and blocks (184) are equidistantly fixedly installed on both sides of the adjustment block (181) corresponding to positions of the slots (183).

4. A temporary height limit frame for roads and bridges according to claim 1, Features: The height limiting assembly (2) comprises a first height limiting block (21) fixedly mounted on the upper side of the connecting rod (141); a rotatable reset block (22) is arranged inside the first height limiting block (21); a reset torsion spring (221) is fixedly mounted between the inner bottom wall of the first height limiting block (21) and the side of the reset block (22); a mounting rod (23) is fixedly mounted on the upper side of the reset block (22); a mounting groove (231) is provided on the upper side of the mounting rod (23); and two equidistantly spaced members are arranged inside the mounting groove (231). A mounting block (232) is provided, a height limiting belt (233) is fixedly connected to a side of the mounting block (232), a Velcro (234) is fixedly installed on a side of the height limiting belt (233) away from the mounting block (232), a protection plate (24) is provided between the two sets of height limiting belts (233), a restraining groove (25) is provided on a side of the first height limiting block (21), a cleaning block (251) is fixedly installed equidistantly inside the restraining groove (25), and a protection cover (26) is movably installed on the upper side of the first height limiting block (21).

5. A temporary height limit frame for roads and bridges according to claim 4, Features: The first height limiting block (21) is a circular block with a convex circular groove on the upper side, the mounting groove (231) is a rectangular groove with a "T"-shaped cross section, the mounting block (232) is a "T"-shaped block, the height limiting belt (233) is a turbine-shaped rectangular belt with a rough edge on one side, and the cleaning block (251) is a rectangular block made of rubber.

6. A temporary height limit frame for roads and bridges according to claim 1, Features: The fixing assembly (4) comprises a connecting groove (41) equidistantly provided on a side surface of the mounting frame (11); a fixing rod (42) is movably installed inside the connecting groove (41); sliding grooves (43) are provided on two inner walls of the connecting groove (41) at positions corresponding to the fixing rod (42); a sliding block (44) is movably installed inside the sliding groove (43); a first limiting groove (45) penetrating the fixing rod (42) and the mounting frame (11) is provided on a side surface of the fixing rod (42); a second limiting groove (451) penetrating the mounting frame (11) is equidistantly provided on an inner wall of the connecting groove (41) at positions corresponding to the fixing rod (42); and a limiting rod (46) is movably installed inside the first limiting groove (45).

7. A temporary height limit frame for roads and bridges according to claim 6, Features: The fixing assembly (4) further comprises a deformation cylinder (47) movably sleeved on the side of the limiting rod (46), the deformation cylinder (47) being a cylinder made of rubber material, support bars (48) being fixedly installed in a circular array at equal intervals between the limiting rod (46) and the deformation cylinder (47), the support bars (48) being hollow arc-shaped bars made of elastic plastic material, and a pull block (49) being fixedly installed on the side of the limiting rod (46).

Images