Height limiting device for highway bridge

Abstract

The utility model discloses a height limit device for highway bridge, including height limit equipment body, height limit equipment body bottom column, support rod and height limit pole, the number of support rod is two, the bottom of two support rod both is fixedly installed the top of bottom column, the opposite side of height limit pole both is arranged on the opposite side of support rod, the height limit equipment body is provided with the height limit pole. Road passing plates are arranged on the opposite sides of the supporting rods correspondingly, stroke grooves are formed in the opposite sides of the supporting rods correspondingly, the surfaces of the height limiting rods are movably connected with the surfaces of the stroke grooves, output assemblies are arranged on the left sides and the right sides of the supporting rods correspondingly, and induction assemblies are arranged on the front sides of the height limiting rods; the problems that when an existing height limiting equipment body is used, a height limiting device is prone to colliding with a vehicle height limiting device due to the fact that a vehicle is loaded in an ultrahigh mode, the height limiting device is damaged, normal traffic of a road is affected, the height limiting device is seriously damaged, and serious economic losses or life dangers are caused are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of highway bridges, and in particular relates to a height limiting device for highway bridges. Background Art

[0002] Highway bridges are an indispensable part of modern transportation. They enable vehicles and pedestrians to cross rivers, valleys and other obstacles, connect interrupted sections of roads, and form a complete transportation network. The function of a bridge is not limited to transportation. It also has multiple social and economic significances such as market function, tourism function and cultural function. The main reason for using height limiting equipment on highway bridges is to ensure traffic safety and the safety of bridge structures. The height limiting equipment can prevent vehicles that are too high from driving on the bridge, reduce the risk of bridge damage caused by excessive vehicle height, and also avoid other traffic accidents that may be caused by this. A Chinese patent discloses a height limiting device for a highway bridge, and the publication number is: CN214737578U. A height limiting device for a highway bridge includes a base, characterized in that: a support rod is fixedly connected to the base, a control rod is movably connected to the support rod, a first pulley is fixedly connected to the control rod, a rotating rod is movably connected to the support rod, a second pulley is fixedly connected to the rotating rod, a belt is arranged on the second pulley, a gear is fixedly connected to the rotating rod, and a rack rod is slidably connected to the support rod. The rack rod is meshed with the back of the gear, the top of the rack rod is fixedly connected with a sliding block, the left side of the sliding block is movably connected to the height limiting rod, the control rod is fixedly connected with a ratchet, the support rod is fixedly connected with a fixed block, the fixed block is movably connected with a sliding block, the left side of the slider is fixedly connected with a movable block, and a pawl is hinged on the movable block. The left side of the ratchet is meshed with the pawl, the left side of the movable block is fixedly connected with a connecting rod, the left side of the connecting rod is fixedly connected with a nut, and the nut is threadedly connected with a threaded rod, the bottom of the threaded rod is fixedly connected with a second bevel gear, the left side of the second bevel gear is meshed with the top of the first bevel gear, and the left side of the first bevel gear is fixedly connected to the adjusting rod.The height limiting device for a highway bridge is characterized in that when the height limiting rod is adjusted upward, the control rod is rotated, and the rotation of the control rod drives the first pulley to rotate, the first pulley drives the second pulley to rotate through the belt, the rotation of the second pulley drives the rotating rod to rotate, the rotation of the rotating rod drives the gear to rotate, the rotation of the gear causes the rack rod to slide upward, so that the rack rod pushes the sliding block to move upward, and the sliding block causes the height limiting rod to move upward. When the height limiting rod is adjusted downward, the adjusting rod is rotated, and the rotation of the adjusting rod drives the first bevel gear to rotate. The rotation of the first bevel gear drives the third bevel gear to rotate, and the rotation of the second bevel gear drives the threaded rod to rotate. The rotation of the threaded rod causes the nut to move upward, and the connecting rod drives the movable rod to move upward, so that the pawl and the ratchet are disengaged. Then the control rod is rotated to move the height limit rod downward, and the adjusting rod is rotated to engage the pawl and the ratchet, so as to limit the height limit rod in one direction, so that when an over-height vehicle passes, the height limit rod can be driven to move upward without directly causing damage to the height limit device, thereby increasing the practicality of the height limit device for highway bridges and solving the problem that the existing height limit device for highway bridges is damaged after an over-height vehicle passes by, affecting the normal traffic on the road and increasing the cost of use. Through searching, the above is a case that is closer to the prior art.

[0003] Moreover, the above patent still has certain defects: the height of the height limit pole cannot be controlled by the controller, and when the vehicle speed is high, the height limit device body will be seriously damaged.

[0004] To sum up, the problem existing in the prior art is that when the current height limiting equipment body is in use, the height limiting device is very likely to collide with the vehicle height limiting device when the vehicle is overloaded, causing damage to the height limiting device and affecting the normal traffic on the road, causing serious damage to the height limiting device, resulting in significant economic losses or life dangers. Based on the search of the above patents, a height limiting device for highway bridges is specially proposed to solve the above problems. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model provides a height limiting device for highway bridges, which has the advantage of being able to detect the height of vehicles and ensure the smooth passage of vehicles. It solves the problem that when the current height limiting equipment body is in use, the height limiting device is very likely to collide with the vehicle height limiting device when the vehicle is overloaded, causing damage to the height limiting device, affecting the normal traffic on the road, causing serious damage to the height limiting device, and causing significant economic losses or life dangers.

[0006] The utility model is implemented as follows: a height limiting device for a highway bridge comprises a height limiting device body, a bottom column of the height limiting device body, a support rod and a height limiting rod, two support rods are provided, the bottoms of the two support rods are fixedly mounted with the top of the bottom column, the opposite side of the height limiting rod is provided on the opposite side of the support rod, the opposite side of the support rod is provided with a road plate, the opposite side of the support rod is provided with a travel groove, and the surface of the height limiting rod is movably connected with the surface of the travel groove, the left and right sides of the support rod are provided with output components, and the front side of the height limiting rod is provided with a sensing component;

[0007] The output assembly includes a fixing seat, a motor and an output rod, the opposite side of the fixing seat is fixedly mounted on the opposite side of the support rod, the outer surface of the motor is fixedly mounted on the inner surface of the fixing seat, the opposite side of the output rod is fixedly mounted on the starting end of the motor, and the opposite side of the output rod passes through the support rod to the inside of the travel groove;

[0008] The sensing assembly includes an infrared sensor and a controller, the rear sides of the infrared sensor and the controller are fixedly mounted on the front side of the height limit pole, and the infrared sensor is connected to the motor through a controller wire;

[0009] The opposite side of the output rod is provided with a rotating structure.

[0010] As a preferred embodiment of the utility model, the rotating structure includes a first bevel gear, a second bevel gear and a screw, the threads on the surface of the screw are both positive and negative threads, the left side of the first bevel gear is fixedly mounted on the right side of the output rod, the second bevel gear is located at the bottom of the first bevel gear, and the first bevel gear and the second bevel gear are in a meshing relationship, the bottom of the screw is fixedly mounted on the top of the second bevel gear, and the bottom of the second bevel gear is movably connected to the surface of the travel groove through a rotating shaft, and the upper and lower sides of the height limiting rod are both threadedly connected to the surface of the screw. By setting up the rotating structure, it can be used in conjunction with the output assembly, so that the screw can be driven to rotate by the rotating structure.

[0011] As a preferred embodiment of the utility model, a luminous warning sign is fixedly installed on the top of the height limit pole, a movable groove is opened on the top of the support pole, and the luminous warning sign is in contact with the surface of the movable groove. By arranging the luminous warning sign and the movable groove, the luminous warning sign can be used to remind vehicles at night.

[0012] As a preferred embodiment of the utility model, the opposite side of the travel groove is movably connected with an auxiliary block through a sliding groove, and the opposite side of the auxiliary block is fixedly installed on the side opposite to the height limit rod. By setting the auxiliary block, the height limit rod can be assisted and supported to move when it moves up and down.

[0013] As a preferred embodiment of the present invention, the surface of the screw rod is connected to a fixing rod via a threaded connection, and pedals are movably connected to the front and rear sides of the fixing rod via a rotating shaft, and the bottoms of the pedals are in contact with the top of the crossing plate. By arranging the fixing rod and the pedals, the fixing rod can be moved up and down, thereby driving the pedals to move on the surface of the crossing plate.

[0014] As a preferred embodiment of the utility model, the opposite side of the base column is movably connected with a moving rod through a slide groove, and the opposite side of the moving rod is fixedly installed on the side opposite to the pedal. By setting the moving rod, when the pedal moves up and down on the surface of the screw rod, the moving rod can be driven to slide on the surface of the slide groove at the same time, thereby assisting and supporting the movement of the pedal.

[0015] As a preferred embodiment of the present invention, a metal block is fixedly mounted on the surface of the travel groove, and the top of the metal block is located at the bottom of the fixing rod. By arranging the metal block, it can play a supporting role when the vehicle passes through the pedal.

[0016] 1. The utility model improves the output component, the induction component, the rotating structure, the luminous warning sign, the moving groove, the auxiliary block, the fixed rod, the moving rod and the metal block. By setting the use of the output component, the rotating structure can be driven to rotate. The rotation of the rotating structure can simultaneously drive the screw rod to rotate, and can drive the height limit rod to move up and down, so that the vehicle can pass smoothly, and the height limit device body can detect the height of the vehicle when limiting its height, and can ensure the smooth passage of the vehicle, and also play a certain protective role for the height limit device body, and solves the problem that when the current height limit device body is in use, the height limit device is very likely to collide with the vehicle height limit device due to the vehicle's over-high loading, causing damage to the height limit device, affecting the normal traffic on the road, causing serious damage to the height limit device, causing significant economic losses or life dangers.

[0017] 2. The utility model is provided with a sensing component, which can drive the fixing rod to move downward on the surface of the screw rod when the vehicle passes, so that the pedals are parallel, thereby ensuring the smooth passage of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the height limiting device body provided by the embodiment of the utility model;

[0019] Figure 2 It is a disassembled stereoscopic diagram of the rotating structure provided by the embodiment of the utility model;

[0020] Figure 3 This is a disassembled stereoscopic diagram of a pedal provided by an embodiment of the utility model;

[0021] Figure 4 The utility model embodiment provides Figure 1 A partial enlarged view of the center

[0022] Figure 5 The utility model embodiment provides Figure 2 A partial enlarged view of point B in the middle.

[0023] In the figure: 1. height limiting device body; 101. bottom column; 102. support rod; 103. height limiting rod; 2. crossing plate; 3. travel groove; 4. output assembly; 41. fixed seat; 42. motor; 43. output rod; 5. sensing assembly; 51. infrared sensor; 52. controller; 6. rotating structure; 61. first bevel gear; 62. second bevel gear; 63. screw; 7. luminous warning sign; 8. moving groove; 9. auxiliary block; 10. fixed rod; 11. moving rod; 12. metal block; 13. pedal. DETAILED DESCRIPTION

[0024] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0025] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0026] like Figures 1 to 5 As shown, a height limiting device for a highway bridge provided by an embodiment of the utility model comprises a height limiting device body 1, a bottom column 101 of the height limiting device body 1, a support rod 102 and a height limiting rod 103, two support rods 102 are provided, the bottoms of the two support rods 102 are fixedly mounted with the tops of the bottom columns 101, the opposite sides of the height limiting rods 103 are arranged on the opposite sides of the support rods 102, the opposite sides of the support rods 102 are provided with a road plate 2, the opposite sides of the support rods 102 are provided with a travel groove 3, and the surface of the height limiting rod 103 is movably connected with the surface of the travel groove 3, the left and right sides of the support rod 102 are provided with an output component 4, and the front side of the height limiting rod 103 is provided with a sensing component 5;

[0027] The output assembly 4 includes a fixing seat 41, a motor 42 and an output rod 43. The opposite side of the fixing seat 41 is fixedly mounted on the opposite side of the support rod 102. The outer surface of the motor 42 is fixedly mounted on the inner surface of the fixing seat 41. The opposite side of the output rod 43 is fixedly mounted on the starting end of the motor 42. The opposite side of the output rod 43 penetrates the support rod 102 to the inside of the travel groove 3.

[0028] The sensing assembly 5 includes an infrared sensor 51 and a controller 52. The rear sides of the infrared sensor 51 and the controller 52 are fixedly mounted on the front side of the height-limiting rod 103, and the infrared sensor 51 is connected to the motor 42 through the wire of the controller 52.

[0029] The opposite side of the output rod 43 is provided with a rotating structure 6 .

[0030] refer to Figure 2 and Figure 4 The rotating structure 6 includes a first bevel gear 61, a second bevel gear 62 and a screw 63. The threads on the surface of the screw 63 are both positive and negative threads. The left side of the first bevel gear 61 is fixedly installed on the right side of the output rod 43. The second bevel gear 62 is located at the bottom of the first bevel gear 61, and the first bevel gear 61 and the second bevel gear 62 are in a meshing relationship. The bottom of the screw 63 is fixedly installed on the top of the second bevel gear 62, and the bottom of the second bevel gear 62 is movably connected to the surface of the travel groove 3 through a rotating shaft, and the upper and lower sides of the height limiting rod 103 are both threadedly connected to the surface of the screw 63.

[0031] The above solution is adopted: by setting the rotating structure 6, it can be used in conjunction with the output component 4, so that the screw rod 63 can be driven to rotate by the rotating structure 6.

[0032] refer to Figure 1 A luminous warning sign 7 is fixedly installed on the top of the height limit rod 103, a moving groove 8 is opened on the top of the support rod 102, and the luminous warning sign 7 is in contact with the surface of the moving groove 8.

[0033] By adopting the above solution, by providing the luminous warning sign 7 and the movable slot 8, the luminous warning sign 7 can be used to remind vehicles at night.

[0034] refer to Figure 2 and Figure 4 The opposite side of the travel groove 3 is movably connected with an auxiliary block 9 through a sliding groove, and the opposite side of the auxiliary block 9 is fixedly installed with the side opposite to the height limiting rod 103.

[0035] The above solution is adopted: by providing the auxiliary block 9, it can assist and support the movement of the height limiting rod 103 when the height limiting rod 103 moves up and down.

[0036] refer to Figure 1 and Figure 3 The surface of the screw rod 63 is connected to the fixing rod 10 through a thread, and the front and rear sides of the fixing rod 10 are movably connected to the pedals 13 through a rotating shaft, and the bottoms of the pedals 13 are in contact with the top of the crossing plate 2.

[0037] The above solution is adopted: by providing the fixing rod 10 and the pedal 13 , the fixing rod 10 can be moved up and down, so that the pedal 13 can be driven to move on the surface of the crossing plate 2 .

[0038] refer to Figure 1 and Figure 3The opposite side of the bottom column 101 is movably connected with the moving rod 11 through a sliding groove, and the opposite side of the moving rod 11 is fixedly installed with the side opposite to the pedal 13.

[0039] By adopting the above solution, by setting the moving rod 11, when the pedal 13 moves up and down on the surface of the screw rod 63, the moving rod 11 can be driven to slide on the surface of the slide groove at the same time, thereby assisting and supporting the movement of the pedal 13.

[0040] refer to Figure 2 and Figure 5 A metal block 12 is fixedly mounted on the surface of the travel groove 3 , and the top of the metal block 12 is located at the bottom of the fixing rod 10 .

[0041] The above solution is adopted: by providing the metal block 12 , it can play a supporting role when the vehicle passes through the pedal 13 .

[0042] During use, when the vehicle passes through the height limiting device body 1, it can first be sensed by the infrared sensor 51, so that the controller 52 can be used to drive the motor 42 to operate. In this way, through the operation of the motor 42, the output rod 43 can be used to drive the first bevel gear 61 to rotate at the same time. Through the rotation of the first bevel gear 61, the second bevel gear 62 can be driven to rotate on the surface of the stroke groove 3 using the rotating shaft, so that the second bevel gear 62 drives the screw 63 to rotate. In this way, the rotation of the screw 63 can drive the height limiting rod 103 and the fixed rod 10 to move up and down. In the process of the fixed rod 10 moving downward, the pedal 13 can be driven by the rotating shaft to move on the surface of the slide groove using the moving rod 11, so that the pedal 13 and the fixed rod 10 present an arc, and then the vehicle can be driven.

[0043] To sum up: this kind of height limiting device for highway bridge, through the coordinated use of height limiting equipment body 1, base column 101, support rod 102, height limiting rod 103, road plate 2, travel groove 3, output assembly 4, fixed seat 41, motor 42, output rod 43, sensing assembly 5, infrared sensor 51, controller 52, rotating structure 6, first bevel gear 61, second bevel gear 62, screw 63, luminous warning sign 7, moving groove 8, auxiliary block 9, fixed rod 10, moving rod 11, metal block 12 and pedal 13, solves the problem that when the current height limiting equipment body is in use, the height limiting device is very likely to collide with the vehicle height limiting device when the vehicle is overloaded, causing damage to the height limiting device, affecting the normal traffic on the road, causing serious damage to the height limiting device, causing significant economic losses or life danger.

[0044] 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.

[0045] 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 height limiting device for a highway bridge, comprising a height limiting device body (1), the height limiting device body (1) comprising a base column (101), a support rod (102) and a height limiting rod (103), two support rods (102) are provided, the bottoms of the two support rods (102) are fixedly mounted with the top of the base column (101), the opposite side of the height limiting rod (103) is provided on the opposite side of the support rod (102), and the opposite side of the support rod (102) is provided with a road plate (2), characterized in that: The support rod (102) is provided with a travel groove (3) on one side opposite to the other, and the surface of the height limiting rod (103) is movably connected to the surface of the travel groove (3). The left and right sides of the support rod (102) are provided with output components (4), and the front side of the height limiting rod (103) is provided with a sensing component (5); The output assembly (4) comprises a fixing seat (41), a motor (42) and an output rod (43), the opposite side of the fixing seat (41) is fixedly mounted on the opposite side of the support rod (102), the outer surface of the motor (42) is fixedly mounted on the inner surface of the fixing seat (41), the opposite side of the output rod (43) is fixedly mounted on the starting end of the motor (42), and the opposite side of the output rod (43) passes through the support rod (102) to the inside of the travel groove (3); The sensing component (5) comprises an infrared sensor (51) and a controller (52), the rear sides of the infrared sensor (51) and the controller (52) are fixedly mounted on the front side of the height limiting pole (103), and the infrared sensor (51) is connected to the motor (42) via a wire of the controller (52); A rotating structure (6) is provided on one side opposite to the output rod (43).

2. A height limiting device for a highway bridge as claimed in claim 1, characterized in that: The rotating structure (6) comprises a first bevel gear (61), a second bevel gear (62) and a screw rod (63); the threads on the surface of the screw rod (63) are both positive and negative threads; the left side of the first bevel gear (61) is fixedly mounted on the right side of the output rod (43); the second bevel gear (62) is located at the bottom of the first bevel gear (61); the first bevel gear (61) and the second bevel gear (62) are in meshing relationship; the bottom of the screw rod (63) is fixedly mounted on the top of the second bevel gear (62); the bottom of the second bevel gear (62) is movably connected to the surface of the travel groove (3) via a rotating shaft; and the upper and lower sides of the height limiting rod (103) are both threadedly connected to the surface of the screw rod (63).

3. A height limiting device for a highway bridge as claimed in claim 1, characterized in that: A luminous warning sign (7) is fixedly mounted on the top of the height-limiting rod (103), a movable groove (8) is provided on the top of the support rod (102), and the luminous warning sign (7) is in contact with the surface of the movable groove (8).

4. A height limiting device for a highway bridge as claimed in claim 1, characterized in that: The opposite side of the travel groove (3) is movably connected to an auxiliary block (9) via a sliding groove, and the opposite side of the auxiliary block (9) is fixedly mounted to the opposite side of the height limiting rod (103).

5. A height limiting device for a highway bridge as claimed in claim 2, characterized in that: The surface of the screw rod (63) is connected to a fixing rod (10) via a threaded connection, and both the front and rear sides of the fixing rod (10) are movably connected to pedals (13) via a rotating shaft, and the bottoms of the pedals (13) are in contact with the top of the crossing plate (2).

6. A height limiting device for a highway bridge as claimed in claim 5, characterized in that: The opposite side of the base column (101) is movably connected to a moving rod (11) via a sliding groove, and the opposite side of the moving rod (11) is fixedly mounted on the side opposite to the pedal (13).

7. A height limiting device for a highway bridge as claimed in claim 5, characterized in that: A metal block (12) is fixedly mounted on the surface of the travel groove (3), and the top of the metal block (12) is located at the bottom of the fixing rod (10).

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