A crack prevention device for highway bridges

Abstract

This invention belongs to the technical field of bridge crack prevention devices, and relates to a crack prevention device for highway bridges. This invention provides a highway bridge crack prevention device that facilitates bridge maintenance, thereby ensuring the bridge's service life. The invention provides such a highway bridge crack prevention device, including a support rod, a V-frame, a guide rail, and a winding assembly. The support rod connects to the bridge support pillars, and the upper end of the support rod is connected to the V-frame, which connects to the bridge structure to support it. The guide rail surrounds and connects to the bridge support pillars. A winding assembly is slidably mounted on the guide rail, used to wind a PTFE membrane and attach it to the bridge support pillars. The support rod is equipped with a spraying mechanism for cooling the bridge structure with water. Water is sprayed onto the bridge structure through a spray pipe to cool and prevent cracking, and the PTFE membrane is wound onto the bridge support pillars by the winding assembly, thus maintaining the bridge and ensuring its service life.

Description

Technical Field

[0001] This invention belongs to the technical field of bridge crack prevention devices, and relates to a crack prevention device for highway bridges. Background Technology

[0002] Bridges are generally structures built over rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. Over time, under the influence of pressure, vibration, and high temperatures, bridges are prone to cracking and eventually breaking, leading to safety accidents. Therefore, bridge maintenance is necessary to prevent bridge breakage. However, the maintenance of bridge supports is a major challenge in current technology.

[0003] For example, patent CN215669096U discloses a highway bridge crack prevention device. This device mainly uses shock-absorbing springs to reduce the vibration of the bridge. However, over time, pressure, vibration, and neglected high temperatures can still cause the bridge to crack, so it cannot actually achieve the effect of preventing bridge cracks and has limitations. Furthermore, this highway bridge crack prevention device cannot easily maintain the bridge supports, making the bridge's breakage only a matter of time. Summary of the Invention

[0004] In order to overcome the shortcomings of existing technologies in terms of convenient bridge maintenance, the present invention aims to provide a road bridge anti-crack device that enables convenient bridge maintenance and ensures the bridge's usability.

[0005] To address the aforementioned technical problems, this invention provides a crack prevention device for highway bridges, comprising a support rod, a V-frame, a guide rail, a winding assembly, and a spraying mechanism. The support rod is used to connect to the bridge support pillars, and the upper end of the support rod is connected to the V-frame, which is used to connect to and support the bridge main body. The guide rail surrounds and connects to the bridge support pillars, and the winding assembly is slidably mounted on the guide rail. The winding assembly is used to wind up a PTFE membrane and encircle the PTFE membrane onto the bridge support pillars. The support rod is equipped with a spraying mechanism for spraying water to cool the bridge main body.

[0006] Preferably, the winding assembly includes a slider, an electric telescopic rod, and a winding rod. The slider is slidably mounted on the guide rail, the electric telescopic rod is mounted on the slider, and the piston of the electric telescopic rod is engaged with a winding rod for winding the PTFE film.

[0007] Preferably, the spraying mechanism includes a water pump, a spray pipe, and a delivery pipe. The water pump is installed on the upper part of the support rod. The output pipe of the water pump is connected to a spray pipe for spraying water onto the bridge body for cooling. The input pipe of the water pump is connected to a downward-extending delivery pipe for conveying water.

[0008] Preferably, it also includes a protective plate and a shock-absorbing spring. The protective plate is slidably mounted on the lower end of the bridge support, and the shock-absorbing spring connected to the bridge support is attached to the protective plate. The protective plate is used to protect the bridge support under the action of the shock-absorbing spring.

[0009] Preferably, it further includes a drive mechanism for driving the winding assembly to wind the PTFE membrane onto the bridge support. The drive mechanism includes a bracket, a transmission component, a connecting rod, and a power source. The upper end of the support rod is connected to the bracket. The top side of the bracket is rotatably provided with a transmission component surrounding the bridge support. A connecting rod is connected between the transmission component and the slider. The bracket is provided with a power source for driving the transmission component. The transmission component is used to drive the slider to rotate around the bridge support through the connecting rod under the action of the power source.

[0010] Preferably, the transmission component is a flexible rack, the power source is a motor, and the output shaft of the motor is driven by a spur gear and the flexible rack.

[0011] Preferably, it also includes a cutting rod, a compression spring, and a wedge rod. The cutting rod for cutting the PTFE membrane is slidably provided on the support rod. A compression spring is connected between the cutting rod and the support rod. A wedge rod for contacting the cutting rod is connected to the slider.

[0012] Preferably, it also includes a protective frame, which is connected to the bottom of the bridge body and surrounds the bridge support to prevent sand and gravel from impacting and damaging the bridge support.

[0013] In addition to overcoming the shortcomings of existing technologies, this invention also achieves the following beneficial effects:

[0014] 1. Water is sprayed onto the main body of the bridge through spray pipes to cool it down and prevent cracking. The PTFE membrane is then wound onto the bridge pillars through a winding assembly to maintain the bridge and ensure its continued use.

[0015] 2. After one turn of the PTFE membrane is wound, the PTFE membrane is automatically and synchronously cut by the cooperation of the wedge rod and the cutting rod, which facilitates the operation of the operator and improves the synchronization of the device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the support rod and the figure-eight frame of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the guide rail and winding assembly of the present invention.

[0018] Figure 3 This is an exploded view of the winding assembly of the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the components of the present invention, including the water pump, spray pipe, and delivery pipe.

[0020] Figure 5 This is a three-dimensional structural diagram of the protective plate and shock-absorbing spring of the present invention.

[0021] Figure 6 This is a three-dimensional structural diagram of the bracket and flexible rack components of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the connecting rod and motor components of the present invention.

[0023] Figure 8 This is a three-dimensional structural diagram of the components of the present invention, including the cutting rod, compression spring, and wedge rod.

[0024] Figure 9 This is a schematic diagram of the three-dimensional structure of this practical application.

[0025] The labels in the attached diagram are as follows: 1-Bridge main body, 2-Bridge support, 3-Support rod, 4-A-frame, 5-Guide rail, 60-PTFE membrane, 6-Rewinding assembly, 61-Slider, 62-Electric telescopic rod, 63-Rewinding rod, 71-Water pump, 72-Sprinkler pipe, 73-Conveying pipe, 81-Protective plate, 82-Shock-absorbing spring, 91-Bracket, 92-Soft rack, 93-Connecting rod, 94-Motor, 101-Cutting rod, 102-Compression spring, 103-Wedge rod, 11-Protective frame. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1

[0027] A crack prevention device for highway bridges, such as Figure 1 and Figure 2 As shown, the structure includes a support rod 3, a V-shaped frame 4, a guide rail 5, a winding assembly 6, and a spraying mechanism. The support rod 3 is used to connect the bridge support column 2. A wave-shaped V-shaped frame 4 is bolted to the upper end of the support rod 3. The V-shaped frame 4 is used to connect to the bridge body 1 to support the bridge body 1 and provide ventilation. The guide rail 5 is used to surround and connect the bridge support column 2. The winding assembly 6 is slidably mounted on the guide rail 5. The winding assembly 6 is used to wind up the PTFE membrane 60 and wind the PTFE membrane onto the bridge support column 2. The support rod 3 is equipped with a spraying mechanism for spraying water to cool the bridge body 1.

[0028] The operator can apply the corresponding technical solutions in this device to the anti-cracking device for highway bridges according to the specific situation. When it is necessary to use this device to assist in the anti-cracking operation of highway bridges, firstly, the device is installed on the bridge. When the high temperature requires cooling of the main body 1 of the bridge, water is sprayed onto the main body 1 of the bridge through the spraying mechanism to cool down and prevent cracking. Then, when it is necessary to maintain the bridge support 2, the PTFE membrane 60 is wound onto the bridge support 2 through the winding assembly 6 to quickly and conveniently maintain the bridge support 2. Example 2

[0029] Based on Example 1, such as Figure 2 and Figure 3 As shown, the winding assembly 6 includes a slider 61, an electric telescopic rod 62, and a winding rod 63. The slider 61 is slidably mounted on the guide rail 5. The electric telescopic rod 62 is mounted on the slider 61 by means of screws. The winding rod 63 for winding the PTFE membrane 60 is engaged with the piston of the electric telescopic rod 62.

[0030] like Figure 4 As shown, the spraying mechanism includes a water pump 71, a spray pipe 72, and a delivery pipe 73. The upper part of the support rod 3 is equipped with a water pump 71 for pumping water by means of screw connection. The output pipe of the water pump 71 is connected to a spray pipe 72 for spraying water onto the bridge body 1 for cooling. The input pipe of the water pump 71 is connected to a downward extending delivery pipe 73 for conveying water.

[0031] Water is connected to the external delivery pipe 73, and the water pump 71 is controlled to spray the water in the delivery pipe 73 onto the bridge body 1 through the spray pipe 72 to cool and prevent cracking. Initially, the winding rod 63 is engaged with the piston rod of the electric telescopic rod 62. The piston rod of the electric telescopic rod 62 is controlled to retract and release the winding rod 63, and then the PTFE membrane 60 is wound around the winding rod 63. The piston rod of the electric telescopic rod 62 is then controlled to extend and engage the winding rod 63 to wind up the PTFE membrane 60. After winding, the outer end of the PTFE membrane 60 is wound onto the bridge support 2, and then the slider 61 drives all the components on it to slide along the guide rail 5 to wind the PTFE membrane 60 onto the bridge support 2. Example 3

[0032] Based on Example 2, such as Figure 5 As shown, it also includes a protective plate 81 and a shock-absorbing spring 82. The protective plate 81 is slidably mounted on the lower end of the bridge support 2. The shock-absorbing spring 82 connected to the bridge support 2 is attached to the protective plate 81. The protective plate 81 is used to protect the bridge support 2 under the action of the shock-absorbing spring 82.

[0033] The combination of the protective plate 81 and the shock-absorbing spring 82 can protect the lower end of the bridge support 2 from impact.

[0034] like Figure 6 and Figure 7 As shown, it also includes a drive mechanism for driving the winding assembly 6 to wind the PTFE membrane 60 onto the bridge support 2. The drive mechanism includes a bracket 91, a transmission component, a connecting rod 93, and a power source. The upper end of the support rod 3 is bolted to the bracket 91. The top side of the bracket 91 is rotatably provided with a transmission component surrounding the bridge support 2. The transmission component and the slider 61 are bolted together with the connecting rod 93. The bracket 91 is provided with a power source for driving the transmission component. The transmission component is used to drive the slider 61 to rotate around the bridge support 2 through the connecting rod 93 under the action of the power source. The transmission component is a soft rack 92, and the power source is a motor 94. The output shaft of the motor 94 is driven by the soft rack 92 through a spur gear.

[0035] The control motor 94 drives the flexible rack 92 to rotate. The flexible rack 92 will drive the slider 61 to slide along the guide rail 5 through the connecting rod 93, thereby automatically winding the PTFE membrane 60 onto the bridge support 2, which is convenient to operate.

[0036] like Figure 8 As shown, it also includes a cutting rod 101, a compression spring 102, and a wedge rod 103. The cutting rod 101 for cutting the PTFE membrane 60 is slidably provided on the support rod 3. The side of the cutting rod 101 near the bridge support has a sharp end face. The compression spring 102 is connected between the cutting rod 101 and the support rod 3. The wedge rod 103 for contacting the cutting rod 101 is connected to the slider 61.

[0037] like Figure 9 As shown, it also includes a protective frame 11, which is used to connect to the bottom of the bridge body 1 and surround the bridge support 2 to prevent sand and gravel from impacting and damaging the bridge support 2.

[0038] The sliding of slider 61 causes wedge rod 103 to move around bridge support 2. After wedge rod 103 moves around bridge support 2 once, wedge rod 103 will squeeze cutter rod 101 to move forward. Compression spring 102 is compressed, and cutter rod 101 moves forward to cut PTFE membrane 60 on winding rod 63. In this way, PTFE membrane 60 is automatically and synchronously cut after one turn of winding, which facilitates the operation of the operator and improves the synchronization of the device.

[0039] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A crack prevention device for highway bridges, comprising a support rod (3) and a V-frame (4), wherein the support rod (3) is used to connect to a bridge support column (2), and the upper end of the support rod (3) is connected to the V-frame (4), the V-frame (4) being used to connect to the bridge body (1) to support the bridge body (1), characterized in that, It also includes a guide rail (5), a winding assembly (6) and a spraying mechanism. The guide rail (5) is used to surround and connect the bridge support (2). The winding assembly (6) is slidably provided on the guide rail (5). The winding assembly (6) is used to wind up the PTFE membrane (60) and wind the PTFE membrane onto the bridge support (2). The support rod (3) is provided with a spraying mechanism for spraying water to cool down the main body of the bridge (1). The winding assembly (6) includes a slider (61), an electric telescopic rod (62) and a winding rod (63). The slider (61) is slidably mounted on the guide rail (5). The electric telescopic rod (62) is mounted on the slider (61). The winding rod (63) for winding the PTFE membrane (60) is snapped onto the piston of the electric telescopic rod (62). It also includes a drive mechanism for driving the winding assembly (6) to wind the PTFE membrane (60) onto the bridge support (2). The drive mechanism includes a bracket (91), a transmission component, a connecting rod (93), and a power source. The upper end of the support rod (3) is connected to the bracket (91). The top side of the bracket (91) is rotatably provided with a transmission component surrounding the bridge support (2). The transmission component is connected to the slider (61) by a connecting rod (93). The bracket (91) is provided with a power source for driving the transmission component. The transmission component is used to drive the slider (61) to rotate around the bridge support (2) through the connecting rod (93) under the action of the power source. The transmission component is a soft rack (92), and the power source is a motor (94). The output shaft of the motor (94) is driven by a spur gear and the soft rack (92). It also includes a cutting rod (101), a compression spring (102) and a wedge rod (103). The cutting rod (101) for cutting the PTFE membrane (60) is slidably provided on the support rod (3). The compression spring (102) is connected between the cutting rod (101) and the support rod (3). The wedge rod (103) for contacting the cutting rod (101) is connected on the slider (61).

2. The anti-cracking device for highway bridges according to claim 1, characterized in that, The spraying mechanism includes a water pump (71), a spray pipe (72) and a delivery pipe (73). The water pump (71) is installed on the upper part of the support rod (3). The output pipe of the water pump (71) is connected to a spray pipe (72) for spraying water onto the main body of the bridge (1) for cooling. The input pipe of the water pump (71) is connected to a downward-extending delivery pipe (73) for delivering water.

3. The anti-cracking device for highway bridges according to claim 2, characterized in that, It also includes a protective plate (81) and a shock-absorbing spring (82). The protective plate (81) is slidably installed on the lower end of the bridge support (2). The shock-absorbing spring (82) connected to the bridge support (2) is attached to the protective plate (81). The protective plate (81) is used to protect the bridge support (2) under the action of the shock-absorbing spring (82).

4. The anti-cracking device for highway bridges according to claim 3, characterized in that, It also includes a protective frame (11), which is connected to the bottom of the bridge body (1) and surrounds the bridge support (2) to prevent sand and gravel from impacting and damaging the bridge support (2).

Images