Bridge concrete crack reinforcing and repairing equipment

Abstract

The utility model provides bridge concrete crack reinforcing and repairing equipment which is applied to filling of bridge side deep cracks, the bridge concrete crack reinforcing and repairing equipment comprises a spray head shell, an elastic extrusion part and a material spraying pipe, an air exhaust cavity is formed in the spray head shell, and an air exhaust assembly communicating with the air exhaust cavity is arranged on the spray head shell. A vent hole communicated with the outside is formed in the elastic extrusion part, and an adsorption cavity communicated with the vent hole and the air exhaust cavity is formed in the elastic extrusion part. When the side, provided with the vent holes, of the elastic extrusion part is attached to the surface of the bridge and the vent holes right face the cracks, the air exhaust assembly exhausts air in the adsorption cavity, and the material spraying pipe injects materials into the external cracks. Therefore, air and impurities in the crack are pumped away, negative pressure is generated, and under the action of the negative pressure, the repairing material can better permeate into a deep area of the crack.

Description

Technical Field

[0001] This application relates to the field of construction technology, and particularly to a device for strengthening and repairing concrete cracks in bridges. Background Art

[0002] As an important part of modern transportation infrastructure, bridges bear huge loads and environmental impacts, and various damages often occur, among which the crack problem is particularly prominent. The existence of cracks not only affects the aesthetics of bridges, but more importantly, it will reduce their structural strength and durability. In particular, deep cracks pose a potential threat to the safety of bridges. Existing bridge crack repair technologies mainly focus on the treatment of superficial cracks, and it is difficult to achieve ideal effects for repairing deep cracks on the bridge side. Traditional repair methods such as surface coating and simple filling often cannot effectively penetrate deep into the cracks, resulting in potential safety hazards in the repaired bridge structure.

[0003] To solve this problem, injection repair technologies such as high-pressure grouting have emerged in the market. These technologies enhance the penetration ability of repair materials by increasing the injection pressure of the repair materials. However, these technologies still have some deficiencies. For example, it is difficult to control the fluidity of the slurry during the grouting process, and the repair materials are prone to accumulate on the crack surface and cannot be evenly distributed to the deep positions of the cracks.

[0004] Currently, there is an urgent need for a device for strengthening and repairing concrete cracks in bridges that can ensure that the repair materials can penetrate deep into the cracks when repairing deep cracks in bridges. Utility Model Content

[0005] In view of this, it is necessary to provide a device for strengthening and repairing concrete cracks in bridges to solve the problem that traditional repair methods such as surface coating and simple filling often cannot effectively penetrate deep into the cracks, resulting in potential safety hazards in the repaired bridge structure.

[0006] An embodiment of this application provides a device for strengthening and repairing concrete cracks in bridges, which is used to fill deep cracks on the bridge side. The device for strengthening and repairing concrete cracks in bridges includes:

[0007] A nozzle housing, with a suction chamber formed inside, and a suction component communicated with the suction chamber is provided on the nozzle housing;

[0008] An elastic extrusion member, which is arranged on the nozzle housing. An air vent communicating with the outside is opened on the elastic extrusion member, and an adsorption chamber communicating with the air vent and the suction chamber respectively is formed inside the elastic extrusion member;

[0009] A material spraying pipe, which is slidably connected to the nozzle housing, and the sliding direction of the material spraying pipe is opposite to the air vent;

[0010] When the side of the elastic extrusion member provided with the vent hole is attached to the bridge surface and the vent hole is directly opposite to the crack, the exhaust assembly extracts the gas in the adsorption chamber, and the injection pipe injects material into the external crack.

[0011] In at least one embodiment of the present application, the bridge concrete crack reinforcement and repair equipment further includes:

[0012] A driving device is arranged in the nozzle housing and is transmission-connected to the spray pipe, and the driving device drives the spray pipe to approach or move away from the vent hole.

[0013] In at least one embodiment of the present application, a sliding limit groove is provided on the nozzle housing, and a sliding limit portion corresponding to the sliding limit groove is provided on the spray pipe;

[0014] The sliding limit groove is slidably connected to the sliding limit part and the sliding limit groove limits the rotation of the spray pipe. The driving device drives the spray pipe to approach or move away from the vent hole along the length direction of the sliding limit groove.

[0015] In at least one embodiment of the present application, the driving device has an internal gear rotatably connected to the nozzle housing, and a screw sleeve portion provided on the internal gear and located at the rotation center of the internal gear in the internal gear;

[0016] The spray pipe passes through the screw sleeve and is provided with a screw thread portion corresponding to the screw sleeve. The rotation of the internal gear drives the spray pipe to approach or move away from the vent hole along the length direction of the sliding limit groove.

[0017] In at least one embodiment of the present application, the bridge concrete crack reinforcement and repair equipment further includes:

[0018] A driving device is disposed in the nozzle housing and is transmission-connected to the internal gear.

[0019] In at least one embodiment of the present application, the driving device is a motor, the nozzle housing has a connecting portion corresponding to the driving device, and the driving device is bolted to the connecting portion;

[0020] The driving device is provided with a transmission gear which is transmission-connected to the internal gear, and the driving device is transmission-connected to the internal gear via the transmission gear.

[0021] In at least one embodiment of the present application, a rotation track is provided in the nozzle housing, the internal gear is provided on the rotation track, and the rotation track limits the rotation track of the internal gear;

[0022] The inner gear is rotatably connected to the nozzle housing through the rotation track.

[0023] In at least one embodiment of the present application, a plurality of connecting plates are provided between the lead screw sleeve portion and the inner gear;

[0024] One end of the connecting plate is integrally formed with the lead screw sleeve portion, and the other end of the connecting plate is integrally formed with the inner gear. The plurality of connecting plates are arranged at equal intervals around the rotation axis of the lead screw sleeve portion.

[0025] In at least one embodiment of the present application, the bridge concrete crack reinforcement and repair equipment further includes:

[0026] A mixing and feeding device, which is communicated with one end of the spraying pipe far away from the ventilation hole.

[0027] In at least one embodiment of the present application, the bridge concrete crack reinforcement and repair equipment further includes:

[0028] A liquid pump, which is located between the mixing and feeding device and the spraying pipe. The liquid inlet end of the liquid pump is communicated with the mixing and feeding device, and the liquid outlet end of the liquid pump is communicated with the spraying pipe.

[0029] The above-provided bridge concrete crack reinforcement and repair equipment evacuates the gas in the adsorption cavity through the air extraction assembly to generate negative pressure, so that the air and impurities in the crack can be effectively evacuated, and the injection material of the spraying pipe can be evenly injected into the deep part of the crack. Under the action of negative pressure, the repair material can better penetrate into the deep layer area of the crack, thus overcoming the problem that the traditional method cannot effectively fill the deep crack. Description of the Drawings

[0030] Figure 1 is a three-dimensional structure diagram of the bridge concrete crack reinforcement and repair equipment;

[0031] Figure 2 is a structural schematic diagram of the bridge concrete crack reinforcement and repair equipment when the elastic pressing member fits the bridge side and the spraying pipe extends into the crack;

[0032] Figure 3 is a structural schematic diagram of the bridge concrete crack reinforcement and repair equipment when the elastic pressing member fits the bridge side and the spraying pipe does not extend into the crack;

[0033] Figure 4 is a three-dimensional structure diagram of the bridge concrete crack reinforcement and repair equipment when the mixing and feeding device and the liquid pump are hidden and the spraying pipe extends out of the ventilation hole;

[0034] Figure 5 is a side view of the bridge concrete crack reinforcement and repair equipment when the mixing and feeding device and the liquid pump are hidden and the spraying pipe extends out of the ventilation hole;

[0035] Figure 6 Sectional view A-A of Figure 5 ;

[0036] Figure 7 Stereogram of the structure of the bridge concrete crack reinforcement and repair equipment with the mixing and feeding equipment and the liquid pump hidden and the spraying pipe not protruding from the vent hole;

[0037] Figure 8 Side view of the bridge concrete crack reinforcement and repair equipment with the mixing and feeding equipment and the liquid pump hidden and the spraying pipe not protruding from the vent hole;

[0038] Figure 9 Sectional view B-B of Figure 8 ;

[0039] Figure 10 Side view of the nozzle housing;

[0040] Figure 11 Sectional view C-C of Figure 10 ;

[0041] Figure 12 Exploded view of the structure of the bridge concrete crack reinforcement and repair equipment with the mixing and feeding equipment and the liquid pump hidden;

[0042] Figure 13 Exploded view of the structure of the bridge concrete crack reinforcement and repair equipment with the mixing and feeding equipment and the liquid pump hidden;

[0043] Figure 14 Schematic diagram of the structure of the bridge concrete crack reinforcement and repair equipment with the mixing and feeding equipment and the liquid pump hidden and fitted to the bridge deck crack and the spraying pipe protruding from the vent hole;

[0044] Figure 15 Schematic diagram of the structure of the bridge concrete crack reinforcement and repair equipment with the mixing and feeding equipment and the liquid pump hidden and fitted to the bridge deck crack and the spraying pipe not protruding from the vent hole;

[0045] Figure 16 Schematic diagram of the air flow when the gas in the crack is extracted.

[0046] Description of main component symbols

[0047] 100. Bridge concrete crack reinforcement and repair equipment; 1. Sprayer housing; 11. Sliding limit groove; 12. Connecting part; 13. Rotating track; 2. Elastic extrusion part; 14. Vent hole; 3. Spray pipe; 31. Sliding limit part; 32. Screw thread part; 4. Air extraction component; 5. Transmission component; 51. Internal gear; 52. Screw sleeve part; 521. Connecting plate; 53. Driving device; 54. Transmission gear; 6. Stirring and feeding equipment; 7. Liquid pump; a. Air extraction chamber; b. Adsorption chamber. Detailed implementation mode

[0048] Next, the embodiments of the present application will be described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0049] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "provided on" another component, it can be directly provided on the other component or there may be an intermediate component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "rear", and similar expressions used herein are only for the purpose of illustration.

[0050] The embodiment of the present application provides a bridge concrete crack reinforcement and repair equipment, which is applied to fill deep cracks on the side of the bridge. The bridge concrete crack reinforcement and repair equipment includes:

[0051] A sprayer housing, an air extraction chamber is formed inside the sprayer housing, and an air extraction component communicating with the air extraction chamber is provided on the sprayer housing;

[0052] An elastic extrusion part, the elastic extrusion part is provided on the sprayer housing, a vent hole communicating with the outside is opened on the elastic extrusion part, and an adsorption chamber communicating with the vent hole and the air extraction chamber is formed inside the elastic extrusion part;

[0053] A spray pipe, the spray pipe is slidably connected to the sprayer housing, and the sliding direction of the spray pipe is directly opposite to the vent hole;

[0054] When the side of the elastic extrusion part with the vent hole is attached to the bridge surface and the vent hole is directly opposite to the crack, the air extraction component extracts the gas in the adsorption chamber, and the spray pipe injects materials into the external crack. The bridge concrete crack reinforcement and repair equipment provided above extracts the gas in the adsorption chamber through the air extraction component to generate negative pressure, which can effectively extract the air and impurities in the crack and evenly inject the materials of the spray pipe into the deep part of the crack. Under the action of negative pressure, the repair material can better penetrate into the deep area of the crack, thus overcoming the problem that the traditional method cannot effectively fill the deep crack.

[0055] The following will describe in detail some embodiments of the present application with reference to the accompanying drawings. In the case of no conflict, the following embodiments and the features in the embodiments may be combined with each other.

[0056] Please refer to Figures 1-16 , an embodiment of the present application provides a bridge concrete crack reinforcement and repair device 100, which is applied to fill deep cracks on the bridge side. The bridge concrete crack reinforcement and repair device 100 includes a nozzle housing 1, an elastic extrusion member 2, and a spray material pipe 3. The nozzle housing 1 has an air extraction chamber a formed inside, and an air extraction assembly 4 communicating with the air extraction chamber a is provided on the nozzle housing 1. The elastic extrusion member 2 is provided on the nozzle housing 1, and an air vent 14 communicating with the outside is formed on the elastic extrusion member 2. An adsorption chamber b communicating with the air vent 14 and the air extraction chamber a respectively is formed inside the elastic extrusion member 2. The spray material pipe 3 is slidably connected to the nozzle housing 1, and the sliding direction of the spray material pipe 3 is directly opposite to the air vent 14. When one side of the elastic extrusion member 2 having the air vent 14 is attached to the bridge surface and the air vent 14 is directly opposite to the crack, the air extraction assembly 4 extracts the gas in the adsorption chamber b, and the spray material pipe 3 injects the material into the outside crack.

[0057] Specifically, an air extraction chamber a is formed inside the nozzle housing 1, and an air extraction assembly 4 communicating with the air extraction chamber a is provided. The nozzle housing 1 is the core part of the entire device, providing a basic structure for assembling other components. The setting of the air extraction chamber a allows the device to extract gas through the air extraction assembly 4, thereby creating a negative pressure environment during the repair process, which is beneficial to the uniform penetration of the repair material. Through the negative pressure environment, the repair material can be effectively attracted into the deep crack, improving the repair effect and structural strength. The elastic extrusion member 2 is provided on the nozzle housing 1, with an air vent 14 communicating with the outside, and an adsorption chamber b communicating with the air vent 14 and the air extraction chamber a respectively is formed inside. When the elastic extrusion member 2 is attached to the bridge surface, the air vent 14 can be aligned with the crack, enabling the gas in the adsorption chamber b to be effectively extracted. The design of the air vent 14 ensures the precise delivery of the repair material and the exclusion of gas. It can achieve the precise positioning of the crack and the uniform distribution of the repair material, avoiding the problem of uneven material accumulation in traditional repair methods. The spray material pipe 3 is slidably connected to the nozzle housing 1, and the sliding direction is directly opposite to the air vent 14. The spray material pipe 3 is responsible for injecting the repair material into the crack. The sliding design enables the spray material pipe 3 to adjust its position during the repair process to adapt to cracks of different depths. It provides a flexible repair operation space, ensuring that the repair material can be accurately injected into each part of the crack, thereby improving the repair effect.

[0058] Furthermore, before repair, one side of the elastic extrusion piece 2 is attached to the surface of the bridge, and the vent hole 14 is aligned with the crack. If the length of the crack is longer than the coverage of the elastic extrusion piece 2, the crack surface should be filled first, leaving part of the crack opening covered by the elastic extrusion piece 2 to create a negative pressure environment in the gap. Start the vacuum assembly 4 to extract the gas in the adsorption chamber b to create a negative pressure environment. This process can expel the air in the crack and create conditions for the penetration of the repair material. Under the action of negative pressure, the repair material is injected into the crack through the injection pipe 3. Due to the effect of negative pressure, the repair material can penetrate deeply and fill the crack. The equipment is particularly suitable for repairing deep cracks on the side of the bridge. In bridge maintenance work, it is often necessary to effectively repair deep cracks to prevent further structural damage and safety hazards.

[0059] In a specific example, the bridge concrete crack reinforcement and repair device 100 further includes:

[0060] A transmission assembly 5 is disposed in the nozzle housing 1 and is transmission-connected to the spray pipe 3 . The transmission assembly 5 drives the spray pipe 3 to approach or move away from the vent hole 14 .

[0061] Specifically, the transmission assembly 5 is installed inside the nozzle housing 1 and cooperates with the material spraying pipe 3 through mechanical connection. Its main function is to adjust the position of the material spraying pipe 3 relative to the vent hole 14. The transmission assembly 5 can move the material spraying pipe 3 inside the nozzle housing 1 through mechanical movement, specifically pushing the material spraying pipe 3 closer to or pulling it farther away from the vent hole 14. This adjustment can precisely control the spraying position of the material spraying pipe 3 according to actual needs. The design of the transmission assembly 5 enables the material spraying pipe 3 to perform precise displacement inside the nozzle housing 1. By adjusting the position of the material spraying pipe 3, it can better align with the specific position of the crack, ensuring that the repair material can be accurately injected into the crack, avoiding waste of the repair material and poor effect. In cracks of different depths, the position of the material spraying pipe 3 may need to be adjusted. The presence of the transmission assembly 5 enables the device to adapt to various crack depths, thereby improving the applicability and efficiency of repair. By precisely controlling the position of the material spraying pipe 3 through the transmission assembly 5, it can ensure that the repair material is evenly distributed in each part of the crack, helping to fill deep cracks and improving the repair effect. By adjusting the relative position of the material spraying pipe 3, the friction and obstruction between the material spraying pipe 3 and the crack can be reduced, and the risk of material accumulation or blockage inside the material spraying pipe 3 can be lowered, improving the smoothness of the repair process. Before starting the repair, the equipment operator adjusts the transmission assembly 5 through the control device or manually according to the depth and position of the crack, so that the position of the material spraying pipe 3 meets the repair requirements. The transmission assembly 5 drives the material spraying pipe 3 to slide along the track inside the nozzle housing 1 through mechanical devices (such as gears, lead screws, etc.) to adjust the distance between the material spraying pipe 3 and the vent hole 14. After adjusting the position, the equipment injects the repair material into the crack through the material spraying pipe 3. At this time, the precise position of the material spraying pipe 3 can ensure that the repair material correctly covers the deep part of the crack, improving the repair quality. After the repair material is injected, the operator can adjust the position of the material spraying pipe 3 again according to needs to complete the entire repair process.

[0062] In a specific example, a sliding limit groove 11 is provided on the nozzle housing 1, and a sliding limit portion 31 corresponding to the sliding limit groove 11 is provided on the material spraying pipe 3;

[0063] The sliding limit groove 11 is slidably connected to the sliding limit portion 31 and the sliding limit groove 11 restricts the rotation of the material spraying pipe 3, and the transmission assembly 5 drives the material spraying pipe 3 to approach or move away from the vent hole 14 along the length direction of the sliding limit groove 11.

[0064] Specifically, the sliding limiting groove 11 formed on the nozzle housing 1 is a kind of track structure that allows the material spraying pipe 3 to slide inside it along a specific direction (the length direction). The main function of the sliding limiting groove 11 is to provide a guiding channel so that the material spraying pipe 3 can move smoothly on the predetermined track. The design of the sliding limiting groove 11 also has the function of restricting the rotation of the material spraying pipe 3. Through the guiding design in the groove, the material spraying pipe 3 can be prevented from rotating during the sliding process, so as to ensure that the direction of the material spraying pipe 3 is always consistent with the set direction and avoid spraying deviation. The sliding limiting part 31 provided on the material spraying pipe 3 corresponds to the sliding limiting groove 11 in the nozzle housing 1, and is usually a protrusion or boss matching the shape of the groove. The cooperation between the sliding limiting part 31 and the sliding limiting groove 11 ensures that the material spraying pipe 3 can maintain stability during sliding and is not easily deviated from the track. The cooperation between the sliding limiting part 31 and the sliding limiting groove 11 ensures that the material spraying pipe 3 remains stable during the sliding process, thereby avoiding the problem of inaccurate injection of the repair material caused by the instability of the material spraying pipe 3. The transmission assembly 5 can drive the material spraying pipe 3 to move along the length direction of the sliding limiting groove 11 by connecting with the material spraying pipe 3. This kind of movement can adjust the position of the material spraying pipe 3 in the nozzle housing 1 along a predetermined path. The precise control of the transmission assembly 5 enables the material spraying pipe 3 to be finely adjusted along the length direction of the sliding limiting groove 11, approaching or moving away from the ventilation hole 14, so as to achieve precise control of the spraying position. Through the cooperation of the sliding limiting groove 11 and the sliding limiting part 31, the material spraying pipe 3 can slide precisely along the predetermined track in the nozzle housing 1. This design enables the material spraying pipe 3 to accurately align with the crack, and fine adjustment can be achieved both in the direction of approaching or moving away from the ventilation hole 14. The limiting effect of the sliding limiting groove 11 effectively prevents the material spraying pipe 3 from rotating or deviating during the sliding process, making the position of the material spraying pipe 3 always stable and ensuring the accurate injection of the repair material. The stable movement of the material spraying pipe 3 reduces the risk of material waste and uneven repair, and improves the uniformity and quality of the repair effect. The design of the transmission assembly 5 makes the adjustment of the material spraying pipe 3 more simple and efficient. The operator can quickly adjust the position of the material spraying pipe 3 according to the needs, improving the efficiency of the repair operation. Before starting the repair, the operator controls the transmission assembly 5 to move the material spraying pipe 3 along the length direction of the sliding limiting groove 11 so that the position of the material spraying pipe 3 is suitable for the specific situation of the crack. The cooperation between the sliding limiting groove 11 and the sliding limiting part 31 ensures that the material spraying pipe 3 remains stable during the movement and will not rotate or deviate.

[0065] In a specific example, the transmission assembly 5 has an internal gear 51 rotatably connected to the nozzle housing 1, and a lead screw sleeve portion 52 provided on the internal gear 51 and located at the rotation center of the internal gear 51 in the internal gear 51;

[0066] The spray pipe 3 penetrates through the lead screw sleeve portion 52, and a lead screw thread portion 32 corresponding to the lead screw sleeve portion 52 is provided on the spray pipe 3. The rotation of the internal gear 51 drives the spray pipe 3 to approach or move away from the ventilation hole 14 along the length direction of the sliding limiting groove 11.

[0067] Specifically, the rotational connection between the internal gear 51 and the nozzle housing 1 means that the internal gear 51 is fixed to the nozzle housing 1 and can rotate around its central axis. The function of the rotation of the internal gear 51 is to transmit the rotational torque through the gear tooth surface, thereby driving the movement of other components (such as the lead screw sleeve portion 52) that cooperate with it. The lead screw sleeve portion 52 is fixed at the rotation center of the internal gear 51, which means that the lead screw sleeve portion 52 rotates synchronously when the internal gear 51 rotates. The lead screw sleeve portion 52 is arranged at the rotation center in the internal gear 51, making it directly related to the rotation action of the internal gear 51. The lead screw sleeve portion 52 is provided with a lead screw thread portion 32 for cooperating with the lead screw thread portion 32 on the spray pipe 3. The spray pipe 3 passes through the lead screw sleeve portion 52, and this design allows the spray pipe 3 to move axially within the lead screw sleeve portion 52. The spray pipe 3 is provided with lead screw thread portions 32, and these thread portions correspond to the lead screw thread portions 32 on the lead screw sleeve portion 52, enabling the spray pipe 3 to perform linear movement through the rotation of the lead screw sleeve portion 52. When the internal gear 51 rotates, its rotation drives the lead screw sleeve portion 52 to rotate as well. Due to the lead screw thread portion 32 provided on the lead screw sleeve portion 52, this rotational movement will convert the rotational movement into the linear movement of the spray pipe 3 through the lead screw thread portion 32. The spray pipe 3 is driven by the rotation of the lead screw thread portion 32 to achieve linear movement along the length direction of the sliding limiting groove 11 (approaching or moving away from the ventilation hole 14). This movement adjusts the spraying position of the spray pipe 3 to adapt to different repair requirements.

[0068] In a specific example, the transmission assembly 5 further includes:

[0069] A driving device 53, the driving device 53 is arranged inside the nozzle housing 1, and the driving device 53 is in transmission connection with the internal gear 51.

[0070] Specifically, the driving device 53 is installed inside the nozzle housing 1. This internal setting design enables the driving device 53 to closely cooperate with other components of the nozzle housing 1 while avoiding interference from the external environment to its operation. This design makes the device more compact and protects the internal mechanism. The integrated design of the driving device 53 reduces the complexity of external connections and improves the overall stability and reliability of the device. The driving device 53 is drivingly connected to the internal gear 51 through a certain mechanical structure (such as gears, belts, chains, etc.). This means that the driving device 53 can directly drive the rotation of the internal gear 51 to achieve mechanical transmission of the internal gear 51. The rotation or power output of the driving device 53 is transmitted to the internal gear 51, enabling the internal gear 51 to perform rotational motion. The rotation of the internal gear 51 further drives the linear movement of the lead screw sleeve portion 52 and the material spraying pipe 3. The driving device 53 automatically drives the internal gear 51, reducing the need for manual operation and making the movement of the material spraying pipe 3 more efficient and stable. This automated operation improves the efficiency and consistency of the repair work. The driving device 53 provides a stable power source to ensure that the rotation of the internal gear 51 is accurate and stable, so that the linear movement of the material spraying pipe 3 is precise, avoiding position errors caused by unstable power.

[0071] In a specific example, the driving device 53 is a motor, and a connection portion 12 corresponding to the driving device 53 is provided inside the nozzle housing 1. The driving device 53 is bolted to the connection portion 12;

[0072] A transmission gear 54 drivingly connected to the internal gear 51 is provided on the driving device 53. The driving device 53 is drivingly connected to the internal gear 51 through the transmission gear 54.

[0073] Specifically, a motor is selected as the driving device 53 to provide a power source. The motor can stably and reliably provide rotational motion and is suitable for precise control tasks in automated equipment. The rotational motion of the motor can be effectively transmitted to other components (such as the internal gear 51) through a mechanical transmission device (such as a gear), achieving the required motion control. A dedicated connection part 12 is provided inside the nozzle housing 1 for mechanical connection with the driving device 53. This design ensures that the driving device 53 can be stably installed inside the nozzle housing 1. The driving device 53 is fixed to the connection part 12 using bolts to ensure that the driving device 53 does not displace or fall off during operation. This connection method provides a firm and reliable fixation, avoiding loosening or vibration problems of the driving device 53. A transmission gear 54 is installed on the driving device 53, and the transmission connection between the transmission gear 54 and the internal gear 51 allows the rotational motion of the motor to be effectively transmitted to the internal gear 51. The rotation of the motor is transmitted to the internal gear 51 through the transmission gear 54, enabling the internal gear 51 to rotate. This transmission method ensures accurate and stable power transmission, thereby achieving effective control of the spraying pipe 3. The motor provides stable power as the driving source, and the cooperation of the transmission gear 54 and the internal gear 51 ensures effective power transmission. This design reduces power loss and improves the working efficiency of the equipment.

[0074] In a specific example, a rotation track 13 is provided inside the nozzle housing 1, the internal gear 51 is arranged on the rotation track 13, and the rotation track 13 restricts the rotation trajectory of the internal gear 51;

[0075] The internal gear 51 is rotationally connected to the nozzle housing 1 through the rotation track 13.

[0076] Specifically, the rotation track 13 is a fixed guiding structure designed inside the nozzle housing 1, used to limit the rotation range and path of the internal gear 51. It can be a circular track, an annular track, or other suitable track forms. The main function of the rotation track 13 is to guide and restrict the rotation of the internal gear 51, enabling it to move along a predetermined trajectory. This can ensure that the internal gear 51 does not shift or jam during rotation, thereby guaranteeing its stable connection with the nozzle housing 1. The internal gear 51 is installed on the rotation track 13, meaning its rotation is physically restricted by the track. The gear structure of the internal gear 51 matches the design of the rotation track 13, enabling it to rotate freely within the specified track. The restricted movement of the internal gear 51 through the rotation track 13 ensures that its rotation does not exceed the designed range. This can prevent the internal gear 51 from generating unstable or irregular movements during operation, thereby improving the reliability and precision of the device. The connection between the internal gear 51 and the nozzle housing 1 through the rotation track 13 means that the rotation of the internal gear 51 is combined with the fixed structure of the nozzle housing 1. This connection ensures that the internal gear 51 can rotate stably inside the nozzle housing 1 without shifting or disengaging. Through the rotational connection, a reliable mechanical fit is formed between the internal gear 51 and the nozzle housing 1, enabling the rotation of the internal gear 51 to be effectively transmitted to the material spraying pipe 3, ensuring the precise adjustment of the material spraying pipe 3. The rotation track 13 provides a stable rotation path, preventing the offset or irregular movement of the internal gear 51. This stability helps to improve the precision of the device, ensuring the accurate adjustment of the material spraying pipe 3. By restricting the rotation trajectory of the internal gear 51, it is possible to avoid the over-rotation or jamming of the internal gear 51, thereby improving the operating efficiency and reliability of the device. Due to the design of the rotation track 13 restricting the movement range of the internal gear 51, the friction and wear between the internal gear 51 and other components are reduced. This design helps to extend the service life of the device. The rotation track 13 protects the internal gear 51 from excessive physical impact or pressure, ensuring that the device can maintain stable performance during long-term operation.

[0077] In a specific example, a plurality of connecting plates 521 are provided between the lead screw sleeve portion 52 and the internal gear 51;

[0078] One end of the connecting plate 521 is integrally formed with the lead screw sleeve portion 52, and the other end of the connecting plate 521 is integrally formed with the internal gear 51. The plurality of connecting plates 521 are arranged equidistantly around the rotation axis of the lead screw sleeve portion 52.

[0079] Specifically, the connecting plate 521 is a mechanical component located between the lead screw sleeve portion 52 and the internal gear 51, and is usually made of metal or other durable materials. The main function of the connecting plate 521 is to connect the lead screw sleeve portion 52 and the internal gear 51. By mechanically connecting the lead screw sleeve portion 52 and the internal gear 51 together, the connecting plate 521 ensures that the two can rotate synchronously. Their design ensures that the rotation of the internal gear 51 can be accurately transmitted to the lead screw sleeve portion 52, thereby realizing the adjustment of the material spraying pipe 3. One end of the connecting plate 521 is integrally formed with the lead screw sleeve portion 52, and the other end is integrally formed with the internal gear 51. This design ensures that the connecting plate 521 can effectively combine the lead screw sleeve portion 52 and the internal gear 51, and forms a stable connection in terms of structure. The connecting plate 521 is arranged equidistantly around the rotation axis of the lead screw sleeve portion 52, that is, the connecting plate 521 is evenly distributed on the internal gear 51, ensuring that the rotational force of the internal gear 51 can be evenly transmitted to the lead screw sleeve portion 52. The equidistant arrangement helps to balance the rotational force of the internal gear 51 and prevent mechanical problems caused by uneven distribution. The connecting plate 521 firmly connects the lead screw sleeve portion 52 and the internal gear 51 together, enhancing the stability of the entire transmission system. The equidistant arrangement of the connecting plate 521 ensures the even distribution of the rotational force of the internal gear 51, thereby improving the running smoothness of the entire device and reducing vibrations or noises caused by uneven forces.

[0080] In a specific example, the bridge concrete crack reinforcement and repair device 100 further includes:

[0081] A mixing and feeding device 6, and the mixing and feeding device 6 is communicated with one end of the material spraying pipe 3 away from the ventilation hole 14.

[0082] Specifically, the mixing and feeding device 6 is a device for mixing and transporting repair materials, usually including a mixer and a feeding system. The mixer can fully mix the components of the repair materials evenly, and the feeding system is responsible for transporting the mixed materials to the spraying pipe 3. The mixing and feeding device 6 can evenly mix various components of the repair materials (such as adhesives, fillers, etc.) to ensure that the repair materials have uniform performance and consistent quality. Effective mixing can improve the repair effect and ensure the filling and adhesion performance of the materials in the cracks. The mixing and feeding device 6 transports the mixed repair materials to the spraying pipe 3, thereby ensuring that the repair materials can be smoothly injected into the cracks through the spraying pipe 3. The design of the feeding system needs to ensure the stable flow of the materials and prevent blockage or uneven flow. The connection position of the mixing and feeding device 6 and the spraying pipe 3 is at one end of the spraying pipe 3 away from the ventilation hole 14. This means that the mixing and feeding device 6 is responsible for transporting the materials to the rear end of the spraying pipe 3, rather than the end near the ventilation hole 14. This connection configuration ensures that the materials can smoothly flow from the mixing and feeding device 6 into the spraying pipe 3 and then be sprayed into the cracks through the spraying pipe 3. Since one end of the spraying pipe 3 has been docked with the crack, the mixed materials will be evenly injected into the crack through the spraying pipe 3. The mixing function of the mixing and feeding device 6 can ensure the uniformity of the repair materials, so that the materials have consistent performance when sprayed into the cracks. This helps to improve the repair quality and enhance the adhesion and strength of the repair materials.

[0083] Furthermore, the mixing and feeding device 6 usually includes a mixer, a feeding pump, and a storage tank, where the mixer is responsible for mixing the components of the repair materials evenly. The mixer usually includes mixing blades or paddles for achieving an efficient mixing process. The mixer can select a screw mixer suitable for materials with higher viscosities, such as slurries or thick mixtures, a paddle mixer suitable for materials with better fluidity and capable of providing good mixing effects, or a planetary mixer suitable for materials requiring high uniformity and capable of achieving omnidirectional mixing. These can be selected from existing technologies. The feeding section transports the mixed materials from the mixer to the spraying pipe 3. The feeding pump can ensure the stable flow and continuous supply of the materials. The feeding section can select a gear pump suitable for high-viscosity repair materials and capable of providing a stable flow rate. A diaphragm pump suitable for materials containing particles or with large viscosity changes and capable of preventing material precipitation and blockage. A screw pump suitable for materials requiring uniform transportation and capable of maintaining the consistency of the materials. The storage tank stores and prepares the repair materials. The storage tank is usually designed as a sealed container to prevent the materials from being affected by moisture or pollution and usually incorporates a mixing function and can stir the materials during storage to maintain uniformity.

[0084] In a specific example, the bridge concrete crack reinforcement and repair device 100 further includes:

[0085] A liquid pump 7, the liquid pump 7 is located between the stirring and feeding device 6 and the spraying pipe 3, the liquid inlet end of the liquid pump 7 is communicated with the stirring and feeding device 6, and the liquid outlet end of the liquid pump 7 is communicated with the spraying pipe 3.

[0086] Specifically, the main function of the liquid pump 7 is to stably transport the repair material from the stirring and feeding device 6 to the spraying pipe 3. Through the operation of the liquid pump 7, the continuity and stability of the material flow can be ensured, which is crucial for efficient and uniform repair. The liquid pump 7 can increase the pressure of the material, overcome the flow resistance of the material, and ensure that the material can smoothly pass through the pipeline system to reach the spraying pipe 3. This is particularly important when dealing with repair materials with high viscosity or high particle content. The flow rate of the liquid pump 7 can be adjusted according to actual needs to adapt to different types of repair materials and repair process requirements. By adjusting the pump speed or using pumps of different specifications, the flow rate and flow of the material can be controlled. The liquid pump 7 is located between the stirring and feeding device 6 and the spraying pipe 3. The liquid inlet end is the connection between the liquid inlet end of the liquid pump 7 and the stirring and feeding device 6, receiving the mixed repair material output from the stirring and feeding device 6. The liquid outlet end is the connection between the liquid outlet end of the liquid pump 7 and the spraying pipe 3, transporting the material into the spraying pipe 3. The liquid pump 7 can be a gear pump, a diaphragm pump or a screw pump.

[0087] The above are only the embodiments of the present application. It should be noted here that for those of ordinary skill in the art, without departing from the creative concept of the present application, improvements can still be made, but these all belong to the protection scope of the present application.

Claims

1. A bridge concrete crack reinforcement and repair device, which is applied to filling deep cracks on the side of the bridge, is characterized in that, The bridge concrete crack reinforcement and repair equipment comprises: A nozzle housing is provided with an air extraction cavity therein, and the nozzle housing is provided with an air extraction component connected with the air extraction cavity; An elastic extrusion member, the elastic extrusion member is arranged on the nozzle housing, the elastic extrusion member is provided with a vent hole connected to the outside, and the elastic extrusion member is formed with an adsorption cavity connected to the vent hole and the air extraction cavity respectively; A spray pipe, the spray pipe is slidably connected to the nozzle housing, and the sliding direction of the spray pipe is directly opposite to the vent hole; When the side of the elastic extrusion member provided with the vent hole is attached to the bridge surface and the vent hole is directly opposite to the crack, the exhaust assembly extracts the gas in the adsorption chamber, and the injection pipe injects material into the external crack.

2. The bridge concrete crack reinforcement and repair equipment according to claim 1, characterized in that, The bridge concrete crack reinforcement and repair equipment also includes: A transmission component is arranged in the nozzle housing and is transmission-connected to the spray pipe, and the transmission component drives the spray pipe to approach or move away from the vent hole.

3. The bridge concrete crack reinforcement and repair equipment according to claim 2, characterized in that, The nozzle housing is provided with a sliding limit groove, and the spray pipe is provided with a sliding limit portion corresponding to the sliding limit groove; The sliding limit groove is slidably connected to the sliding limit part and the sliding limit groove limits the rotation of the spray pipe. The transmission assembly drives the spray pipe to approach or move away from the vent hole along the length direction of the sliding limit groove.

4. The bridge concrete crack reinforcement and repair equipment according to claim 3, characterized in that, The transmission assembly comprises an internal gear rotatably connected to the nozzle housing, and a screw sleeve portion disposed on the internal gear and located at the rotation center of the internal gear in the internal gear; The spray pipe passes through the screw sleeve and is provided with a screw thread portion corresponding to the screw sleeve. The rotation of the internal gear drives the spray pipe to approach or move away from the vent hole along the length direction of the sliding limit groove.

5. The bridge concrete crack reinforcement and repair equipment according to claim 4, characterized in that, The transmission assembly also includes: A driving device is disposed in the nozzle housing and is transmission-connected to the internal gear.

6. The bridge concrete crack reinforcement and repair equipment according to claim 5, characterized in that, The driving device is a motor, and the nozzle housing has a connecting portion corresponding to the driving device, and the driving device is bolted to the connecting portion; The driving device is provided with a transmission gear which is transmission-connected to the internal gear, and the driving device is transmission-connected to the internal gear via the transmission gear.

7. The bridge concrete crack reinforcement and repair equipment according to claim 4, characterized in that, A rotating track is provided in the nozzle housing, the internal gear is provided on the rotating track, and the rotating track limits the rotating track of the internal gear; The internal gear is rotatably connected to the nozzle housing through the rotating track.

8. The bridge concrete crack reinforcement and repair equipment according to claim 4, wherein A plurality of connecting plates are provided between the screw sleeve and the internal gear; One end of the connecting plate is integrally formed with the screw sleeve, and the other end of the connecting plate is integrally formed with the internal gear. A plurality of connecting plates are equidistantly arranged around the rotating axis of the screw sleeve.

9. The bridge concrete crack reinforcement and repair equipment according to claim 1, characterized in that, The bridge concrete crack reinforcement and repair equipment also includes: A stirring and feeding device is connected to an end of the spray pipe away from the vent hole.

10. The bridge concrete crack reinforcement and repair equipment according to claim 9, characterized in that, The bridge concrete crack reinforcement and repair equipment also includes: A liquid pump is located between the stirring and feeding equipment and the spraying pipe, a liquid inlet end of the liquid pump is connected to the stirring and feeding equipment, and a liquid outlet end of the liquid pump is connected to the spraying pipe.

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