An intelligent air vent for a steel box girder dehumidification system

Abstract

The present invention relates to an intelligent air vent for a steel box girder dehumidification system, comprising a bottom plate U-rib, an air outlet pipe provided on the bottom plate U-rib, an air valve connected to the upper end of the air outlet pipe, an upper end of the air valve connected to an intelligent air vent mechanism via an air supply pipe, the intelligent air vent mechanism comprising a lower hemispherical base, a through hole connected to the air supply pipe provided at the bottom of the lower hemispherical base, an upper hemispherical air outlet unit matched therewith provided on the upper part of the lower hemispherical base, the upper hemispherical air outlet unit comprising an air outlet arc plate in a superior arc shape, a dehumidification air vent provided on the air outlet arc plate, a meridian steering drive unit and a latitudinal steering drive unit further provided in the lower hemispherical base, the meridian steering drive unit being used to control the rotation of the air outlet arc plate, and the latitudinal steering drive unit being used to control the rotation of the upper hemispherical air outlet unit. The present application can adjust the air outlet direction within a range on the hemispherical surface, greatly expanding the range of air supply, and can be remotely and automatically controlled, being intelligent and efficient.

Description

Technical Field

[0001] The present application relates to dehumidification of steel box girders of bridges, and in particular, to an intelligent air vent of a steel box girder dehumidification system. Background Art

[0002] One of the main reasons for bridge damage is the metal corrosion of steel box girders. Dehumidification and drying are relatively effective ways to deal with metal corrosion.

[0003] In the existing technology, dehumidification equipment is installed inside the steel box girder to use circulating dehumidified air to prevent metal corrosion. The existing air outlet structure is to open an air outlet circular hole on the U-rib of the bottom plate. When the ventilation air flows through this type of air outlet, the air volume is not large and the diffusion range is very narrow. At the same time, the ventilation direction is also single, and directional blowing and drying cannot be performed through adjustment. Therefore, improvement is urgent. Summary of the Invention

[0004] This application solves the technical problems raised in the background technology and provides an intelligent air outlet for a steel box girder dehumidification system, which can adjust the air outlet direction in a range on a hemispherical surface, greatly expanding the range of air supply, and can be remotely and automatically controlled, which is intelligent and efficient.

[0005] In order to solve the above technical problems, the technical solution provided in this application is: an intelligent air outlet of a steel box girder dehumidification system, including a U-rib of a bottom plate, an air outlet pipe is arranged on the U-rib of the bottom plate, the upper end of the air outlet pipe is connected to an air valve, the upper end of the air valve is connected to the intelligent air outlet mechanism through the air supply pipe, the intelligent air outlet mechanism includes a lower hemispherical base, the bottom of the lower hemispherical base is provided with a through hole connected to the air supply pipe, the upper part of the lower hemispherical base is provided with an upper hemispherical air outlet unit cooperating with it, the upper hemispherical air outlet unit includes an air outlet arc plate in the shape of an arc, the air outlet arc plate is provided with a dehumidification air outlet, and the lower hemispherical base is also provided with a meridian steering drive unit and a weft steering drive unit, the meridian steering drive unit is used to control the rotation of the air outlet arc plate, and the weft steering drive unit is used to control the rotation of the upper hemispherical air outlet unit.

[0006] Furthermore, the intelligent air vent mechanism also includes an upper top plate and a lower bottom plate built therein, and a plurality of support columns are arranged between the upper top plate and the lower bottom plate.

[0007] Furthermore, the weft steering drive unit includes a steering turntable rotatably connected to the center of the upper top plate, two supporting ears are provided on the upper part of the steering turntable, and fixed sleeves are respectively provided on the outer sides of the upper ends of the supporting ears. A first driven gear is fixedly provided on the lower part of the steering turntable, and a first driving gear meshing with the first driven gear is provided on one side of the first driven gear. A first driving motor is fixedly provided on the lower part of the lower base plate, and the output shaft end of the first driving motor is connected to the center of the first driving gear through a driving shaft.

[0008] Furthermore, the upper hemispherical air outlet unit also includes two follower spherical parts symmetrically arranged along the air outlet arc plate, and the follower spherical parts are respectively arranged on the horizontal sides of the air outlet arc plate. An arc-shaped slide groove is provided on the follower spherical part at the contact position with the air outlet arc plate, and arc-shaped protrusions matching the arc-shaped slide groove are provided on both sides of the air outlet arc plate. The follower spherical part is provided with an arc-shaped slide plate at the outer edge of its bottom, and the lower hemispherical base is provided with a circle of circular inner slide groove on the inner side of its top, and the arc slide plate is slidably connected in the circular inner slide groove, and a fixed plug column matching the fixed sleeve is provided on the inner side of the follower spherical part.

[0009] Furthermore, the meridian steering drive unit includes a vertical connecting rod rotatably connected to the wheel surface of the first driven gear, the lower end of the vertical connecting rod is connected to the second driven gear, an air duct is provided through the center of the first driven gear, the lower end of the air duct passes through and is rotatably connected to the lower base plate, a second driving gear rotatably connected to the air duct and meshing with the second driven gear, a driven pulley is fixedly provided at the lower part of the second driving gear, and a second driving motor is also fixedly provided at the lower part of the lower base plate, the output shaft end of the second driving motor is connected to the driving pulley, and the driving pulley and the driven pulley are connected by a belt drive.

[0010] Furthermore, the upper end of the vertical connecting rod is connected to the driving bevel gear, and a horizontal rotating shaft is rotatably connected between the upper ends of the supporting ears. A driven bevel gear that matches the driving bevel gear is provided at one end of the horizontal rotating shaft, and an arc plate driving gear is provided at the other end of the horizontal rotating shaft. An arc plate rack that meshes with the arc plate driving gear is provided on the inner side of the air outlet arc plate.

[0011] Furthermore, the lower portion of the air outlet arc plate is rotatably connected to the lower hemispherical base, and a circle of circular baffles is provided on the inner side of the lower portion of the lower hemispherical base.

[0012] Furthermore, the intelligent air outlet mechanism has a built-in dehumidification pipe system, which includes a dehumidification pipe joint arranged on the inner side of the dehumidification air outlet, an air inlet pipe joint arranged on the upper end of the air duct, the dehumidification pipe joint and the air inlet pipe joint are connected by a hose, and the lower part of the center of the lower base plate is connected to the lower hemispherical base through an air duct, and the air duct is connected to the air supply duct and the air duct.

[0013] Furthermore, the air outlet pipe has a structure with a large inlet at the bottom and a small outlet at the top, and the inlet and the outlet are connected by an air guide slope.

[0014] Furthermore, a temperature and humidity sensor is provided on the steel box girder, and the intelligent air outlet mechanism is equipped with a main controller, which has a built-in communication unit. The main controller is respectively connected to the temperature and humidity sensor, the meridian steering drive unit, the weft steering drive unit and the air valve.

[0015] The present application has the following advantages: the present application overcomes the problem in the prior art that the air outlet is single, the direction cannot be adjusted, and the corresponding air diffusion range is relatively narrow. The intelligent air outlet of the present application can adjust the direction of the air outlet on a hemisphere, and the adjusted direction covers most angles of the entire sphere, so the area that can supply air is greatly expanded. In addition, the structure of the present application can be connected through external control, can receive the ambient humidity conditions through sensors, automatically control the direction of rotation, and carry out targeted blowing and dehumidification. It can also be set to periodic automatic rotation blowing, has strong applicability, effectively dehumidifies steel box girders, improves corrosion resistance, extends service life, and is suitable for promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an intelligent air vent of a steel box girder dehumidification system according to an embodiment of the present invention.

[0017] Figure 2 Schematic diagram of the internal structure of the intelligent air outlet mechanism according to an embodiment of the present invention.

[0018] Figure 3 2 is a schematic diagram of the vertical cross-section structure of the intelligent air outlet mechanism according to an embodiment of the present invention.

[0019] Figure 4 According to an embodiment of the present invention Figure 2 Schematic diagram of the structure from another angle.

[0020] Figure 5 2 is a schematic diagram of the component structure between the upper top plate and the lower bottom plate according to an embodiment of the present invention.

[0021] Figure 6 2 is a schematic structural diagram of a follower spherical member according to an embodiment of the present invention.

[0022] Figure 7 Schematic diagram of the control principle according to an embodiment of the present invention.

[0023] As shown in the figure: 1. Bottom plate U rib; 1-1. Air outlet pipe; 1-2. Air valve; 1-3. Air supply pipe;

[0024] 2. Intelligent air outlet mechanism; 2-1. Lower hemispherical base; 2-2. Upper hemispherical air outlet unit; 2-3. Air outlet arc plate; 2-4. Upper top plate; 2-5. Lower bottom plate; 2-6. Support column; 2-7. Follower spherical member; 2-8. Arc chute; 2-9. Arc slide; 2-10. Circular inner chute; 2-11. Circular baffle;

[0025] 3. Meridian steering drive unit; 3-1. Vertical connecting rod; 3-2. Second driven gear; 3-3. Air duct; 3-4. Second drive gear; 3-5. Driven pulley; 3-6. Second drive motor; 3-7. Driving pulley; 3-8. Driving bevel gear; 3-9. Horizontal shaft; 3-10. Driven bevel gear; 3-11. Arc plate drive gear; 3-12. Arc plate rack;

[0026] 4. Weft steering drive unit; 4-1. Steering turntable; 4-2. Support ear; 4-3. Fixed sleeve; 4-4. First driven gear; 4-5. First drive gear; 4-6. First drive motor; 4-7. Fixed plug;

[0027] 5. Dehumidification piping system; 5-1. Dehumidification pipe joint; 5-2. Air inlet pipe joint; 5-3. Air guide duct. DETAILED DESCRIPTION

[0028] The present application is further described in detail below with reference to the embodiments.

[0029] In the specific implementation of this application, an intelligent air outlet for the steel box girder dehumidification system is designed, which can quickly locate and adjust the blowing angle, carry out targeted rapid drying and dehumidification, expand the drying range, and improve corrosion resistance.

[0030] Specifically, combined with Figure 1-7 As shown, it includes a bottom plate U rib 1, on which an air outlet pipe 1-1 is provided. The air outlet pipe 1-1 has a structure with a large inlet at the bottom and a small outlet at the top. The inlet and outlet are connected by an air guide slope to increase the air intake volume. The upper end of the air outlet pipe 1-1 is connected to the air valve 1-2, and the upper end of the air valve 1-2 is connected to the intelligent air outlet mechanism 2 through the air supply pipe 1-3. The intelligent air outlet mechanism 2 includes a lower hemispherical base 2-1, and the bottom of the lower hemispherical base 2-1 is provided with a through hole connected to the air supply pipe 1-3. The upper part of the lower hemispherical base 2-1 is provided with an upper hemispherical air outlet unit 2-2 matched with it. The upper hemispherical air outlet unit 2-2 includes an air outlet arc plate 2-3 in the shape of an arc, and a dehumidification air outlet is provided on the air outlet arc plate 2-3. The lower hemispherical base 2-1 is also provided with a meridian steering drive unit 3 and a weft steering drive unit 4. The meridian steering drive unit 3 is used to control the rotation of the air outlet arc plate 2-3, and the weft steering drive unit 4 is used to control the rotation of the upper hemispherical air outlet unit 2-2. The intelligent air outlet mechanism 2 also includes an upper top plate 2-4 and a lower bottom plate 2-5 built therein, and a plurality of support columns 2-6 are provided between the upper top plate 2-4 and the lower bottom plate 2-5 to provide upper and lower support.

[0031] The structural principle of the weft steering drive unit 4: the weft steering drive unit 4 includes a steering turntable 4-1 rotatably connected to the center of the upper top plate 2-4, and two supporting ears 4-2 are provided on the upper part of the steering turntable 4-1. The outer sides of the upper ends of the supporting ears 4-2 are respectively provided with fixed sleeves 4-3. The lower part of the steering turntable 4-1 is fixedly provided with a first driven gear 4-4, and a first driving gear 4-5 meshing with the first driven gear 4-4 is provided on one side of the first driven gear 4-4. The lower part of the lower base plate 2-5 is fixedly provided with a first driving motor 4-6, and the output shaft end of the first driving motor 4-6 is connected to the center of the first driving gear 4-5 through the driving shaft. The action of the first driving motor 4-6 drives the rotation of the first driving gear 4-5, and then meshes and transmits the first driven gear 4-4, further driving the rotation of the steering turntable 4-1 and the supporting ears 4-2.

[0032] The structural principle of the rotation of the follower spherical member 2-7 inside the lower hemispherical base 2-1 is as follows: the upper hemispherical air outlet unit 2-2 also includes two follower spherical members 2-7 symmetrically arranged along the air outlet arc plate 2-3, the follower spherical members 2-7 are respectively arranged on the horizontal sides of the air outlet arc plate 2-3, and an arc-shaped slide 2-8 is provided on the follower spherical member 2-7 at the contact position with the air outlet arc plate 2-3, and arc-shaped slides 2-8 are matched with the arc-shaped slides 2-8 on both sides of the air outlet arc plate 2-3. The following spherical member 2-7 is provided with an arc-shaped slide 2-9 at the outer edge of its bottom, and the lower hemispherical base 2-1 is provided with a circle of circular inner grooves 2-10 on the inner side of its top. The arc-shaped slide 2-9 is slidably connected in the circular inner groove 2-10, and the inner side of the following spherical member 2-7 is provided with a fixed plug 4-7 that cooperates with the fixed sleeve 4-3. Furthermore, the rotation of the support ear 4-2 drives the following spherical members 2-7 on both sides to rotate.

[0033] The structural principle of the meridian steering drive unit 3: The meridian steering drive unit 3 includes a vertical connecting rod 3-1 rotatably connected to the wheel surface of the first driven gear 4-4, the lower end of the vertical connecting rod 3-1 is connected to the second driven gear 3-2, the center of the first driven gear 4-4 is penetrated by an air duct 3-3, the lower end of the air duct 3-3 penetrates and is rotatably connected to the lower base plate 2-5, the air duct 3-3 is rotatably connected to the second driving gear 3-4 meshing with the second driven gear 3-2, the lower part of the second driving gear 3-4 is fixedly provided with a driven pulley 3-5, and the lower part of the lower base plate 2-5 is also fixedly provided with a second The driving motor 3-6 and the output shaft end of the second driving motor 3-6 are connected to the driving pulley 3-7, the driving pulley 3-7 and the driven pulley 3-5 are connected by a belt transmission, the upper end of the vertical connecting rod 3-1 is connected to the driving bevel gear 3-8, and the upper ends of the supporting ears 4-2 are rotatably connected with a horizontal rotating shaft 3-9, one end of the horizontal rotating shaft 3-9 is provided with a driven bevel gear 3-10 that matches the driving bevel gear 3-8, and the other end of the horizontal rotating shaft 3-9 is provided with an arc plate driving gear 3-11, and the inner side of the air outlet arc plate 2-3 is provided with an arc plate rack 3-12 that meshes with the arc plate driving gear 3-11. The second drive motor 3-6 rotates, and then drives the second drive gear 3-4 to rotate synchronously through the belt transmission, and then the meshing second driven gear 3-2 rotates, and drives the upper active bevel gear 3-8 to rotate through the vertical connecting rod 3-1, and further rotates the meshing driven bevel gear 3-10, and the coaxial arc plate drive gear 3-11 rotates, and then drives the inscribed meshing arc plate rack 3-12 to rotate, thereby realizing the meridian direction steering of the entire air outlet arc plate 2-3.

[0034] All rotating positions need to be sealed to prevent excessive air leakage from causing insufficient air volume and affecting the dehumidification effect.

[0035] In order to improve stability, the lower part of the air outlet arc plate 2-3 is rotatably connected to the lower hemispherical base 2-1, and a circle of circular baffles 2-11 is provided on the inner side of the lower part of the lower hemispherical base 2-1.

[0036] The structural principle of the dehumidification piping system 5: the intelligent air outlet mechanism 2 has a built-in dehumidification piping system 5, and the dehumidification piping system 5 includes a dehumidification pipe joint 5-1 arranged on the inner side of the dehumidification air outlet, and an air inlet pipe joint 5-2 is arranged at the upper end of the air duct 3-3. The dehumidification pipe joint 5-1 and the air inlet pipe joint 5-2 are connected by a hose. The lower part of the center of the lower base plate 2-5 is connected to the lower hemispherical base 2-1 through an air duct 5-3. The air duct 5-3 is connected to the air supply pipe 1-3 and the air duct 3-3. The air duct 5-3 is arranged in the middle position between the two motors.

[0037] A temperature and humidity sensor is provided on the steel box girder, and the intelligent air outlet mechanism 2 is equipped with a main controller, which has a built-in communication unit. The main controller is respectively connected to the temperature and humidity sensor, the meridian steering drive unit 3, the weft steering drive unit 4 and the air valve 1-2.

[0038] When the device of the present application is in use, the host computer issues a command, transmits a signal to the main controller of the intelligent air outlet through the RS485 communication unit, and then controls the start and stop of the meridian steering drive unit 3, the weft steering drive unit 4 and the air valve 1-2 respectively;

[0039] In automatic mode, the external temperature and humidity sensor is connected to the main controller through the AI ​​port of the smart air outlet. When the temperature and humidity are abnormal, it automatically sends a signal to the main controller to control the meridian steering drive unit 3, the weft steering drive unit 4 and the air valve 1-2.

[0040] The structural principle of the weft steering drive unit 4: the first drive motor 4-6 drives the rotation of the first drive gear 4-5, and then engages the first driven gear 4-4, which further drives the rotation of the steering turntable 4-1 and the support ear 4-2. The rotation of the support ear 4-2 drives the follower spherical parts 2-7 on both sides to rotate.

[0041] The structural principle of the meridian steering drive unit 3: the second drive motor 3-6 rotates, and then drives the second drive gear 3-4 to rotate synchronously through the belt transmission, and then the meshing second driven gear 3-2 rotates, and drives the upper active bevel gear 3-8 to rotate through the vertical connecting rod 3-1, and further rotates the meshing driven bevel gear 3-10, and the coaxial arc plate drive gear 3-11 rotates, and then drives the inscribed meshing arc plate rack 3-12 to rotate, thereby realizing the meridian direction steering of the entire air outlet arc plate 2-3.

[0042] The structural principle of the dehumidification piping system 5 is as follows: after the incoming air passes through the air valve 1-2, it enters the air guide tube 5-3, passes through the air guide pipe 3-3 to reach the air inlet pipe joint 5-2, and then enters the dehumidification air outlet of the dehumidification pipe joint 5-1 through the air guide hose to be discharged, thereby continuously supplying air and discharging it to achieve the dehumidification effect.

[0043] While the present invention has been shown and described primarily with reference to specific embodiments, it will be understood by those skilled in the art that numerous changes may be made thereto in construction and detail without departing from the scope of protection defined in the claims. The scope of protection of the present invention is therefore determined by the claims and is intended to encompass all modifications coming within the meaning or range of equivalents of the claims.

Claims

1. An intelligent air outlet of a steel box girder dehumidification system, comprising a bottom plate U rib (1), characterized in that: An air outlet pipe (1-1) is provided on the bottom plate U rib (1), the upper end of the air outlet pipe (1-1) is connected to an air valve (1-2), the upper end of the air valve (1-2) is connected to an intelligent air outlet mechanism (2) via an air supply pipe (1-3), and the intelligent air outlet mechanism (2) comprises a lower hemispherical base (2-1), the bottom of the lower hemispherical base (2-1) is provided with a through hole connected to the air supply pipe (1-3), and the upper part of the lower hemispherical base (2-1) is provided with an upper hemispherical air outlet matched with the lower hemispherical base (2-1). Unit (2-2), the upper hemispherical air outlet unit (2-2) includes an air outlet arc plate (2-3) in a superior arc shape, the air outlet arc plate (2-3) is provided with a dehumidification air outlet, and the lower hemispherical base (2-1) is further provided with a meridian steering drive unit (3) and a weft steering drive unit (4), the meridian steering drive unit (3) is used to control the rotation of the air outlet arc plate (2-3), and the weft steering drive unit (4) is used to control the rotation of the upper hemispherical air outlet unit (2-2); The intelligent air outlet mechanism (2) further includes an upper top plate (2-4) and a lower bottom plate (2-5) built therein, and a plurality of support columns (2-6) are provided between the upper top plate (2-4) and the lower bottom plate (2-5); The weft steering drive unit (4) comprises a steering turntable (4-1) rotatably connected to the center of the upper top plate (2-4); two supporting ears (4-2) are provided on the upper portion of the steering turntable (4-1); fixed sleeves (4-3) are provided on the outer sides of the upper ends of the supporting ears (4-2); a first driven gear (4-4) is fixedly provided on the lower portion of the steering turntable (4-1); a first driving gear (4-5) meshing with the first driven gear (4-4) is provided on one side of the first driven gear (4-4); a first driving motor (4-6) is fixedly provided on the lower portion of the lower bottom plate (2-5); an output shaft end of the first driving motor (4-6) is connected to the center of the first driving gear (4-5) via a driving shaft; The upper hemispherical air outlet unit (2-2) further comprises two follower spherical members (2-7) symmetrically arranged along the air outlet arc plate (2-3), the follower spherical members (2-7) being respectively arranged on both horizontal sides of the air outlet arc plate (2-3), an arc-shaped sliding groove (2-8) being arranged on the follower spherical member (2-7) at the contact position with the air outlet arc plate (2-3), and two sides of the air outlet arc plate (2-3) being provided with sliding members that cooperate with the arc-shaped sliding groove (2-8). The following spherical member (2-7) is provided with an arc-shaped slide plate (2-9) at the outer edge of the bottom thereof, the lower hemispherical base (2-1) is provided with a circle of circular inner slide grooves (2-10) on the inner side of the top thereof, the arc-shaped slide plate (2-9) is slidably connected in the circular inner slide groove (2-10), and the inner side of the following spherical member (2-7) is provided with a fixed plug post (4-7) that is matched and plugged with the fixed sleeve (4-3); The meridian steering drive unit (3) includes a vertical connecting rod (3-1) rotatably connected to the wheel surface of a first driven gear (4-4), the lower end of the vertical connecting rod (3-1) is connected to a second driven gear (3-2), an air duct (3-3) is provided at the center of the first driven gear (4-4), the lower end of the air duct (3-3) passes through and is rotatably connected to a lower base plate (2-5), a second driving gear (3-4) meshing with the second driven gear (3-2) is rotatably connected to the air duct (3-3), a driven pulley (3-5) is fixedly provided at the lower part of the second driving gear (3-4), a second driving motor (3-6) is also fixedly provided at the lower part of the lower base plate (2-5), an output shaft end of the second driving motor (3-6) is connected to a driving pulley (3-7), and the driving pulley (3-7) and the driven pulley (3-5) are connected via a belt transmission; The intelligent air outlet mechanism (2) is equipped with a dehumidification piping system (5), the dehumidification piping system (5) including a dehumidification pipe joint (5-1) provided inside the dehumidification air outlet, an air inlet pipe joint (5-2) provided at the upper end of the air guide pipe (3-3), the dehumidification pipe joint (5-1) and the air inlet pipe joint (5-2) being connected via a hose, the lower portion of the center of the lower base plate (2-5) being connected to the lower hemispherical base (2-1) via an air guide tube (5-3), the air guide tube (5-3) being connected to the air supply pipe (1-3) and the air guide pipe (3-3); A temperature and humidity sensor is provided on the steel box girder, the intelligent air outlet mechanism (2) is equipped with a main controller, the main controller is equipped with a communication unit, and the main controller is respectively connected to the temperature and humidity sensor, the meridian steering drive unit (3), the weft steering drive unit (4) and the air valve (1-2).

2. The intelligent air vent of the steel box girder dehumidification system according to claim 1 is characterized by: The upper end of the vertical connecting rod (3-1) is connected to the driving bevel gear (3-8), and the upper ends of the support ears (4-2) are rotatably connected to a horizontal rotating shaft (3-9). One end of the horizontal rotating shaft (3-9) is provided with a driven bevel gear (3-10) that matches the driving bevel gear (3-8), and the other end of the horizontal rotating shaft (3-9) is provided with an arc plate driving gear (3-11). The inner side of the air outlet arc plate (2-3) is provided with an arc plate rack (3-12) that meshes with the arc plate driving gear (3-11).

3. The intelligent air vent of the steel box girder dehumidification system according to claim 1 is characterized by: The lower part of the air outlet arc plate (2-3) is rotatably connected to the lower hemispherical base (2-1), and a circular baffle (2-11) is provided on the inner side of the lower part of the lower hemispherical base (2-1).

4. The intelligent air vent of the steel box girder dehumidification system according to claim 1 is characterized by: The air outlet pipe (1-1) has a structure with a large inlet at the bottom and a small outlet at the top, and the inlet and outlet are connected by an air guide slope.

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