A grouting trolley

Abstract

The utility model relates to a kind of grouting trolleys, including vehicle body, support is set on vehicle body, support is set with pulp preparation stirring barrel, slurry storage stirring barrel and grouting pump, the grouting pump is set with first slurry pipe, pulp preparation stirring barrel is set with back slurry pipe, first slurry pipe and back slurry pipe are all respectively set with connecting device, each the connecting device includes spigot, connecting sleeve, guide slot, limit sliding block, compression ring and sealing ring, each guide slot includes insertion cavity, the limit cavity of the insertion cavity side and the guide cavity between the limit cavity and the insertion cavity are set. Reduce the leakage amount of slurry pumped from the gap of connecting assembly. The utility model is convenient to use, and has wide market prospect.

Description

Technical Field

[0001] This utility model relates to the field of grouting equipment, specifically to a grouting trolley. Background Technology

[0002] Post-tensioned precast box girders, a common structural form for highway bridges, are characterized by high load-bearing capacity, light weight, small size, and economic practicality. Grouting is a crucial construction step in post-tensioned precast box girder construction. Grouting technology ensures the stability and safety of the box girder structure, improving the overall performance and service life of the bridge structure. However, applying grouting technology to post-tensioned precast box girders for highway bridges is challenging and requires sophisticated construction techniques. The grouting construction process includes duct forming, corrugated pipe installation, duct cleaning, grouting equipment preparation, the grouting process, and quality inspection.

[0003] Traditional grouting technology involves placing the grouting pipe inside the prestressed duct and directly observing the grout flow. Simply opening a valve allows cement grout to be injected into the duct. Large-circulation grouting technology continuously delivers grout into the duct, while grout discharged from the duct is returned to the storage device, creating a circulation. The limitations of traditional grouting include poor grout fluidity, susceptibility to separation and bleeding, and the need for frequent adjustments to the grouting pipe position. In contrast, large-circulation grouting technology significantly improves construction efficiency. This technology uses high-pressure gas to propel the cement grout into the duct, requiring careful control of the air-grout contact during propulsion to prevent impurities from entering. Large-circulation grouting simplifies the construction process, eliminating the need for segmented grouting and allowing for complete grouting in a single operation. Therefore, this project adopted large-circulation grouting technology.

[0004] Large-circulation grouting technology still requires the connection of grouting pipes and return pipes. The connecting components between the grouting pipe and the injection port, as well as between the return pipe and the return port, come in various forms. The purpose of installing these connecting components is to facilitate the connection between the grouting pipe and the injection port, or the return pipe and the return port. However, although large-circulation grouting technology does not require a vacuuming step, the grout received in the grouting pipe is pumped by a grouting pump and has a certain pressure. Therefore, considering the flow resistance introduced by the grouting channels, the corresponding connecting components should be designed to not only facilitate connection but also seal the grout, thereby reducing leakage of pumped grout from the gaps in the connecting components. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a grouting trolley that can reduce the leakage of pumped slurry from the gaps in the connecting components, thereby overcoming the deficiencies in existing technologies.

[0006] The technical solution adopted by this utility model is as follows: a grouting trolley, including a trolley body, a support frame on the trolley body, a slurry mixing tank on the support frame, a slurry storage mixing tank on the support frame below the slurry mixing tank, an inlet end of a grouting pump connected to the bottom end of the slurry storage mixing tank, a first slurry delivery pipe on the outlet end of the grouting pump, a slurry return pipe on the slurry mixing tank, and connecting devices respectively provided on the end of the first slurry delivery pipe away from the grouting pump and the end of the slurry return pipe away from the slurry mixing tank. Each connecting device includes an insert pipe on the slurry return pipe or the first slurry delivery pipe, a connecting sleeve on the outside of the insert pipe, and a connecting... The sleeve includes a guide groove on the inner side, a limiting slider on the insertion tube inside the guide groove, a pressure ring inside the connecting sleeve below the limiting slider, and a sealing ring inside the connecting sleeve on the side of the pressure ring away from the limiting slider. Each guide groove includes an insertion cavity, a limiting cavity on one side of the insertion cavity, and a guide cavity between the limiting cavity and the insertion cavity. The shape of each limiting cavity matches the partial shape of the adjacent limiting slider, and the partial cross-section of each insertion cavity matches the cross-section of the adjacent limiting slider. The depth of the guide cavity gradually decreases along the direction from the insertion cavity to the limiting cavity.

[0007] Preferably, each of the connecting devices has several guide grooves, which are distributed in a star shape on the outer side of the central axis of the corresponding connecting sleeve. Each of the several guide grooves of the connecting device is equipped with a limiting slider, which is installed on the adjacent insertion tube. The thickness of each limiting slider is not less than the depth of the adjacent limiting cavity, and each limiting slider adopts an arc-shaped block structure.

[0008] Preferably, the pulping mixing tank and the support are each equipped with a weighing device, and each weighing device includes several wing plates arranged on the outside of the pulping mixing tank or the pulp storage mixing tank, and a weighing sensor arranged between each wing plate and the support.

[0009] Preferably, the vehicle body includes a support plate, and a hydraulic cylinder is respectively provided at each of the four corners of the support plate. The cylinder body of each hydraulic cylinder is connected to the support plate, and a limit ball is respectively provided at the bottom end of the piston rod of each hydraulic cylinder. A support base is hinged to each limit ball.

[0010] Preferably, the slurry storage and mixing tank is provided with a slurry screening hopper. The slurry screening hopper includes a connecting plate provided on the inner wall of the slurry storage and mixing tank, the bottom of the connecting plate and a first perforated plate provided on the inner wall of the slurry storage and mixing tank, and a screening chamber provided between the connecting plate, the first perforated plate and the inner wall of the slurry storage and mixing tank. A second slurry delivery pipe is provided on the screening chamber and the slurry mixing tank, and a third slurry delivery pipe is provided on the slurry pump and the slurry storage and mixing tank. A first ball valve is provided on both the third slurry delivery pipe and the second slurry delivery pipe.

[0011] Preferably, the pulping and mixing tank and the vehicle body are equipped with a powder conveying device. The powder conveying device includes a conveying main pipe on the support, a conveying auger inside the conveying main pipe, a conveying branch pipe on the conveying main pipe facing the inner cavity of the pulping and mixing tank, and a conveying motor connected to the conveying auger. The number of powder conveying devices is several, and storage hoppers are set on several conveying main pipes. Several storage chambers are set in the storage hoppers. Each conveying main pipe is connected to one of the storage chambers. Each conveying main pipe and the corresponding storage chamber are connected by a guide pipe. Each storage chamber is provided with a second perforated plate.

[0012] The beneficial effects of this utility model are: This utility model makes it easy to disassemble the return grout pipe and the first grout delivery pipe from the connection port of the grouting channel, thereby facilitating grouting of the next grouting channel. Furthermore, since a pressure ring and a sealing ring are installed inside the connecting sleeve, it is easy to use several limiting sliders near the pressure ring to squeeze the pressure ring, thereby causing the sealing ring to deform and reducing the gap between the sealing ring and the insertion pipe.

[0013] This utility model has a simple structure, is easy to operate, and has a clever design, which greatly improves work efficiency and has good social and economic benefits. It is a product that is easy to promote and use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 for Figure 1 A magnified view of detail A.

[0016] Figure 3 for Figure 1 A magnified view of detail B.

[0017] Figure 4 for Figure 1 A magnified view of detail C.

[0018] Figure 5 This is a structural schematic diagram of the component of this utility model. Detailed Implementation

[0019] like Figures 1 to 5 As shown, a grouting trolley includes a body 1, a support 2 on the body 1, a grouting mixing tank 3 on the support 2, and a grout storage mixing tank 4 on the support 2 below the grouting mixing tank 3. Both the grouting mixing tank 3 and the grout storage mixing tank 4 are equipped with mixing devices. The bottom end of the grout storage mixing tank 4 is connected to the inlet end of a grouting pump 5, which is located below the grout storage mixing tank 4. The outlet end of the grouting pump 5 is equipped with a first grout delivery pipe 6. The grouting mixing tank 3 is equipped with a return grout pipe 7. Connecting devices are respectively provided on the end of the first grout delivery pipe 6 away from the grouting pump 5 and the end of the return grout pipe 7 away from the grout storage mixing tank 3. Each connecting device includes an insert 8 on the return grout pipe 7 or the first grout delivery pipe 6. The system comprises a connecting sleeve 9 on the outer side, a guide groove 10 on the inner side of the connecting sleeve 9, a limiting slider 11 on the insertion tube 8 inside the guide groove 10, a pressure ring 12 inside the connecting sleeve 9 below the limiting slider 11, and a sealing ring 13 inside the connecting sleeve 9 on the side of the pressure ring 12 away from the limiting slider 11. Each guide groove 10 includes an insertion cavity, a limiting cavity on one side of the insertion cavity, and a guide cavity between the limiting cavity and the insertion cavity. The shape of each limiting cavity matches a portion of the shape of the adjacent limiting slider 11, and a portion of the cross-section of each insertion cavity matches the cross-section of the adjacent limiting slider 11. The depth of the guide cavity gradually decreases along the direction from the insertion cavity to the limiting cavity. A connecting flange is provided on the end of the connecting sleeve 9 away from the insertion tube 8.

[0020] The stirring device includes a mounting frame on a pulping mixing tank 3 or a pulping storage mixing tank 4, a stirring shaft on the mounting frame, and a stirring motor connected to the stirring shaft. An impeller is provided on the stirring shaft of the stirring device installed on the pulping mixing tank 3, and a spiral blade is provided on the stirring shaft of the stirring device installed on the pulping storage mixing tank 4.

[0021] Each connecting device has several guide grooves 10, which are arranged in a star shape on the outer side of the central axis of the corresponding connecting sleeve 9. Each connecting device has a limiting slider 11 installed in each guide groove 10. Each limiting slider 11 is installed on an adjacent insertion tube 8. The thickness of each limiting slider 11 is not less than the depth of the adjacent limiting cavity. Each limiting slider 11 adopts an arc-shaped block structure. The limiting slider 11 is inserted into the insertion cavity along the extension direction of the insertion cavity, and then the insertion tube 8 is rotated. The insertion tube 8 drives the limiting slider 11 from the insertion cavity through the guide cavity and finally into the limiting cavity. After the limiting slider 11 is inserted into the limiting cavity, it causes the pressure ring 12 to move towards the sealing ring 13, thereby deforming the sealing ring 13 and reducing the gap between the sealing ring 13 and the insertion tube 8 to achieve a sealing effect.

[0022] Weighing devices are respectively installed on the pulping mixing tank 3 and the support 2, as well as on the support 2 and the pulp storage mixing tank 4. Each weighing device includes several wing plates 14 arranged on the outside of the pulping mixing tank 3 or the pulp storage mixing tank 4, and a weighing sensor 15 is respectively arranged between each wing plate 14 and the support 2. The several wing plates 14 in each weighing device are evenly distributed in a star shape on the outside of the central axis of the pulping mixing tank 3 or the central axis of the pulp storage mixing tank 4, so that the average value of the several weighing sensors 15 in each weighing device is closer to the true value.

[0023] The vehicle body 1 includes a support plate, and hydraulic cylinders 16 are respectively installed at the four corners of the support plate. The cylinder body of each hydraulic cylinder 16 is connected to the support plate, and a limit ball 17 is respectively provided at the bottom end of the piston rod of each hydraulic cylinder 16. A support base 18 is hinged to each limit ball 17. This facilitates the use of the hydraulic cylinders 16 installed at the four corners of the support plate to push the vehicle body 1 to a preset height and preset level, thereby improving the stability of the pulp mixing tank 3 or pulp storage mixing tank 4 installed on the support 2 during operation.

[0024] The slurry storage and mixing tank 4 is equipped with a slurry screening hopper 19. The slurry screening hopper includes a connecting plate on the inner wall of the slurry storage and mixing tank 4, the bottom of the connecting plate, a first perforated plate on the inner wall of the slurry storage and mixing tank 4, and a screening chamber between the connecting plate, the first perforated plate, and the inner wall of the slurry storage and mixing tank 4. A second slurry delivery pipe 20 is provided on the screening chamber and the slurry mixing tank 3, and a third slurry delivery pipe 21 is provided on the slurry pump 5 and the slurry storage and mixing tank 4. A first ball valve 22 is provided on both the third slurry delivery pipe 21 and the second slurry delivery pipe 20. Installing the slurry screening hopper 19 facilitates the screening of the slurry delivered to the screening chamber by the second slurry delivery pipe 20, thereby preventing large solid impurities from being transported to the slurry storage and mixing tank 4 outside the screening chamber.

[0025] The pulping and mixing tank 3 and the vehicle body 1 are equipped with a powder conveying device. This device includes a main conveying pipe 23 mounted on a support 2, a conveying auger 24 inside the main conveying pipe 23, a conveying branch pipe 25 extending from the main conveying pipe 23 toward the inner cavity of the pulping and mixing tank 3, and a conveying motor 26 connected to the conveying auger 24. Several powder conveying devices are used, each with a storage hopper 27 on its main conveying pipe 23. Each storage hopper 27 contains several storage chambers. Each main conveying pipe 23 is connected to one of these storage chambers, and each main conveying pipe 23 and its corresponding storage chamber are connected by a guide pipe 28. Each storage chamber is equipped with a second perforated plate 29. The second perforated plate 29 facilitates the screening of solid materials, thereby reducing the passage of large solid impurities.

[0026] The instructions for using this product are as follows: Figures 1 to 5 As shown, according to the slurry ratio, the powdered solid main material is conveyed to the slurry mixing tank 3 through the powder conveying device. Then, a preset amount of water and additives are added to the slurry mixing tank 3. The stirring device on the slurry mixing tank 3 is turned on to stir the medium in the slurry mixing tank 3 evenly. Then, the second slurry delivery pipe 20 is turned on to convey part of the slurry in the slurry mixing tank 3 to the slurry storage mixing tank 4. Then, the stirring device on the slurry storage mixing tank 4 is turned on to continuously stir the medium in the slurry storage mixing tank 4. At the same time, the corresponding connecting sleeve 9 on the first slurry delivery pipe 6 of this product is installed to the slurry delivery port, and the corresponding connecting sleeve 9 on the return slurry pipe 7 of this product is installed to the return slurry port. Corresponding annular sealing gaskets are installed between the corresponding connecting sleeve 9 and the slurry delivery port, and between the return slurry port and the corresponding connecting sleeve 9.

[0027] When the material level in the slurry storage and mixing tank 4 reaches the preset level, the grouting pump 5 is turned on, and the slurry in the slurry storage and mixing tank 4 is transported to the grouting pump 5. The grouting pump 5 pressurizes the slurry, and the pressurized slurry is transported to the grouting channel through the first grout delivery pipe 6 and the corresponding connecting device. The slurry in the grouting channel is sent back to the slurry mixing tank 3 through the return slurry pipe 7. The stirring device on the slurry mixing tank 3 continuously stirs the medium in the slurry mixing tank 3. During this period, it is necessary to adjust the opening of the first ball valve 22 on the second grout delivery pipe 20 so that the slurry can be continuously received in the grouting channel. During the process, the slurry level in the slurry mixing tank 4 is maintained. The particulate impurities carried out from the grouting channel are transported to the slurry mixing tank 3 along with the slurry returned through the slurry return pipe 7. After being filtered by the slurry screening hopper 19, the slurry delivered to the grouting channel is prevented from containing the solid particulate impurities again. After the slurry is continuously supplied to the grouting channel for a preset time, the grouting pump 5 is turned off and the insertion pipe 8 is removed from the corresponding connecting sleeve 9. Another set of connecting sleeves with the same structure is installed on the next grouting channel to complete the preparation for grouting the next grouting channel.

[0028] This embodiment facilitates the disassembly of the return grout pipe 7 and the first grout delivery pipe 6 from the connection port of the grouting channel, thereby facilitating grouting of the next grouting channel. Furthermore, since a pressure ring 12 and a sealing ring 13 are installed inside the connecting sleeve 9, it is convenient to use several limiting sliders 11 adjacent to the pressure ring 12 to squeeze the pressure ring 12, thereby causing the sealing ring 13 to deform and thus reducing the gap between the sealing ring 13 and the insertion tube 8.

[0029] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A grouting trolley, comprising a trolley body (1), a support (2) mounted on the trolley body (1), a slurry mixing tank (3) mounted on the support (2), a slurry storage mixing tank (4) mounted on the support (2) below the slurry mixing tank (3), and an inlet end of a grouting pump (5) connected to the bottom end of the slurry storage mixing tank (4), characterized in that: The grouting pump (5) is provided with a first grout delivery pipe (6) at its outlet end, and the grout mixing tank (3) is provided with a return grout pipe (7). A connecting device is provided on the end of the first grout delivery pipe (6) away from the grouting pump (5) and the end of the return grout pipe (7) away from the grout mixing tank (3). Each connecting device includes an insert pipe (8) provided on the return grout pipe (7) or the first grout delivery pipe (6), a connecting sleeve (9) provided on the outside of the insert pipe (8), a guide groove (10) provided on the inside of the connecting sleeve (9), a limiting slider (11) provided on the insert pipe (8) inside the guide groove (10), and a limiting slider (11) provided on the insert pipe (8). The connecting sleeve (9) below is provided with a pressure ring (12) and a sealing ring (13) is provided in the connecting sleeve (9) on the side of the pressure ring (12) away from the limiting slider (11). Each guide groove (10) includes an insertion cavity, a limiting cavity on one side of the insertion cavity and a guide cavity provided between the limiting cavity and the insertion cavity. The shape of each limiting cavity matches the partial shape of the adjacent limiting slider (11), and the partial cross section of each insertion cavity matches the shape of the cross section of the adjacent limiting slider (11). The depth of the guide cavity gradually decreases along the direction from the insertion cavity to the limiting cavity.

2. The jacking trolley according to claim 1, characterized in that: The number of guide grooves (10) of each connecting device is several. The guide grooves (10) of each connecting device are distributed in a star shape on the outer side of the central axis of the corresponding connecting sleeve (9). Each guide groove (10) of each connecting device is equipped with a limiting slider (11). The limiting sliders (11) of each connecting device are installed on the adjacent insertion tube (8). The thickness of each limiting slider (11) is not less than the depth of the adjacent limiting cavity. Each limiting slider (11) adopts an arc-shaped block structure.

3. The jacking trolley of claim 1, wherein: Weighing devices are provided on the pulp mixing tank (3) and the support (2), as well as on the support (2) and the pulp storage mixing tank (4). Each weighing device includes several wing plates (14) arranged on the outside of the pulp mixing tank (3) or the pulp storage mixing tank (4) and a weighing sensor (15) arranged between each wing plate (14) and the support (2).

4. The jacking trolley of claim 1, wherein: The vehicle body (1) includes a support plate, and a hydraulic cylinder (16) is provided at each of the four corners of the support plate. The cylinder body of each hydraulic cylinder (16) is connected to the support plate. A limit ball (17) is provided at the bottom end of the piston rod of each hydraulic cylinder (16), and a support base (18) is hinged to each limit ball (17).

5. The jacking trolley of claim 1, wherein: The slurry mixing tank (4) is provided with a slurry screening hopper (19). The slurry screening hopper includes a connecting plate provided on the inner wall of the slurry mixing tank (4), the bottom of the connecting plate and a first perforated plate provided on the inner wall of the slurry mixing tank (4), and a screening chamber provided between the connecting plate, the first perforated plate and the inner wall of the slurry mixing tank (4). A second slurry delivery pipe (20) is provided on the screening chamber and the slurry mixing tank (3). A third slurry delivery pipe (21) is provided on the grouting pump (5) and the slurry mixing tank (4). A first ball valve (22) is provided on both the third slurry delivery pipe (21) and the second slurry delivery pipe (20).

6. The jacking trolley of claim 1, wherein: The pulp mixing tank (3) and the vehicle body (1) are equipped with a powder conveying device. The powder conveying device includes a conveying main pipe (23) on the support (2), a conveying auger (24) inside the conveying main pipe (23), a conveying branch pipe (25) in the direction of the conveying main pipe (23) toward the inner cavity of the pulp mixing tank (3), and a conveying motor (26) connected to the conveying auger (24). The powder conveying device is a plurality of such devices. Storage hoppers (27) are set on the plurality of conveying main pipes (23). The storage hoppers (27) are provided with a plurality of storage chambers. Each conveying main pipe (23) is connected to one of the storage chambers. Each conveying main pipe (23) and the corresponding storage chamber are connected by a guide pipe (28). Each storage chamber is provided with a second perforated plate (29).

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