Cleaning method for in-situ cast-in-place box girder hydraulic inner mold

Abstract

According to the cleaning method for the in-situ cast-in-situ box girder hydraulic internal mold, the problem that the hydraulic internal mold is difficult to clean in a narrow space is effectively solved, concrete residues on the surface of the hydraulic internal mold are thoroughly cleaned by utilizing the movable top cleaning frame and the movable side cleaning frame in cooperation with a high-pressure water system and a brush, and the cleaning efficiency of the hydraulic internal mold is improved. The cleaning efficiency and quality are improved, manual operation is reduced, safety is enhanced, effective collection and discharge of waste residues are ensured through a circulation mechanism formed in the cleaning process, secondary pollution is avoided, and the problem that in the construction process of in-situ cast-in-situ box girders, a hydraulic inner mold cannot be cleaned between two spans is solved.

Description

Technical Field

[0001] The invention relates to the field of hydraulic inner mold cleaning, in particular to a method for cleaning an in-situ cast-in-place box girder hydraulic inner mold. Background Art

[0002] In the field of bridge construction, the integral hydraulic inner mold is widely used in the production process of box beams in the prefabrication yard. This inner mold design allows the template to be easily moved to the inside of the steel skeleton by a winch, and because the space at both ends of the prefabricated beam is relatively spacious, it provides convenient conditions for the movement and cleaning of the inner mold. After the casting of a span of box beam is completed, the inner mold can be thoroughly cleaned in the prefabrication yard for subsequent use.

[0003] However, the situation is different for cast-in-situ box girders. When a box girder is constructed using cast-in-situ methods, the process usually involves pouring concrete in the current span and ensuring that it is fully cured. Once the design requirements are met, the mobile formwork will be moved to the next span to install a new box girder reinforcement skeleton. The inner formwork needs to be moved longitudinally from the span that has been poured and cured to the newly set reinforcement skeleton.

[0004] Since the gap between two adjacent spans is usually very narrow, this poses a great challenge to the operation of the inner mold, especially the cleaning of the inner mold becomes very difficult. The narrow space limits the entry of personnel and the effective use of cleaning equipment, thus affecting work efficiency and the cleanliness of the reused inner mold. Summary of the invention

[0005] The main purpose of the present invention is to provide a method for cleaning an in-situ cast-in-situ box girder hydraulic inner mold, which solves the problem that the hydraulic inner mold cannot be cleaned between two spans during the construction process of the in-situ cast-in-situ box girder.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a method for cleaning the hydraulic inner mold of an in-situ cast-in-place box beam, the method comprising: S1, moving the cleaning device to a first gap between the first mold and the second mold; S2, after the concrete pouring in the second mold is completed, wait for the concrete to be cured; S3, start the cleaning device, and move the hydraulic inner mold inside the second mold into the first mold through a winch; S4, when the hydraulic inner mold passes through the first gap, the cleaning device cleans the hydraulic inner mold; S5, moving the cleaning device to the second gap between the third mold and the second mold; S6, after the concrete pouring in the first mold is completed, wait for the concrete to be cured, start the cleaning device, and move the hydraulic inner mold inside the first mold to the third mold through a winch; S7, when the hydraulic inner mold passes through the second gap, the cleaning device cleans the hydraulic inner mold; S8. Repeat steps S1-S7 to cast the in-situ cast-in-place box girder.

[0007] In the preferred embodiment, in step S1, the cleaning device includes a main truss, walking supports are provided on both sides of the main truss, a movable top cleaning rack is provided above the main truss, and movable side cleaning racks are provided on both sides of the top cleaning rack.

[0008] In the preferred embodiment, the main truss includes a crossbeam, and vertical frames are provided below both sides of the crossbeam, and the vertical frames are arranged perpendicular to the crossbeam; The walking support is connected with the bottom of the vertical frame, and a guide rail is arranged above the crossbeam, and the top cleaning rack and the side cleaning rack move on the guide rail.

[0009] In the preferred embodiment, the travel support includes a travel housing, a travel motor is provided below the travel housing, and a travel wheel is provided at the output shaft end of the travel motor, and the travel wheel is used for the cleaning device to travel on the ground; A through water outlet is also provided on one side of the walking shell, and the water outlet is used to be connected to an external water pumping system.

[0010] In the preferred embodiment, the top washing rack includes a top housing, a plurality of telescopic push rods are arranged inside the top housing, a high-pressure water pump is arranged between the telescopic push rods, a water storage tank is arranged above the high-pressure water pump, and the water storage tank is used to connect with an external water injection system; A limit plate is provided below the telescopic push rod, the telescopic push rod and the limit plate are connected through a top guide rod, a top water pipe is provided below the high-pressure water pump, a detachable top filter pipe is provided below the limit plate, and the top water pipe is connected to the top filter pipe; A top cleaning tank is provided below the top filter tube.

[0011] In a preferred embodiment, the top cleaning tank includes a horizontal cleaning tank, and end cleaning tanks are provided at both ends of the horizontal cleaning tank, and the end cleaning tanks are arranged at a certain angle to the horizontal cleaning tank; Brushes are provided inside the horizontal cleaning tank and the end cleaning tank, and the brushes are used to brush off concrete debris on the surface of the hydraulic inner mold. A filter element is provided inside the top filter tube. The top of the top filter tube is threadedly connected to the limit plate, and the bottom of the top filter tube is threadedly connected to the horizontal cleaning tank.

[0012] In the preferred embodiment, the side washing rack includes a side housing, a plurality of telescopic push rods are arranged inside the side housing, a high-pressure water pump is arranged between the telescopic push rods, a water storage tank is arranged above the high-pressure water pump, and the water storage tank is used to connect to the external water injection system; A limit plate is provided below the telescopic push rod, the telescopic push rod and the limit plate are connected by a side guide rod, a side water pipe is provided below the high-pressure water pump, a detachable side filter pipe is provided below the limit plate, and the side water pipe is connected to the side filter pipe; A side cleaning tank is provided below the side filter tube.

[0013] In the preferred embodiment, the side cleaning groove includes an inclined cleaning groove, and a horizontal cleaning groove is provided below the inclined cleaning groove. The angle of the inclined cleaning groove is consistent with the outer shape angle of the hydraulic inner mold, and the horizontal cleaning groove is kept horizontal with the ground; Brushes are provided inside the inclined cleaning tank and the horizontal cleaning tank for brushing off concrete debris on the surface of the hydraulic inner mold. A filter element is provided inside the side filter tube. The upper part of the side filter tube is threadedly connected to the limit plate, and the lower part of the side filter tube is threadedly connected to the horizontal cleaning tank.

[0014] In the preferred embodiment, a sloping platform is provided in the horizontal cleaning tank, and the sloping platform is in a style of one side being higher and the other side being lower, and a side opening is provided at the side cleaning tank on the lower side of the sloping platform, and the sloping platform is used to guide water flow to the side opening; A flexible interface is provided at the front end of the horizontal cleaning tank, which is used for closing and buffering the horizontal cleaning tanks on both sides. A walking water pipe is provided between the side port and the walking support. The walking water pipe is a flexible pipe and is communicated with the water outlet.

[0015] In the preferred embodiment, in step S1, the initial positions of the side cleaning racks of the cleaning device are located at both ends of the crossbeam, and when cleaning is required, the side cleaning racks are closed toward the hydraulic inner mold; The top cleaning groove and the side cleaning groove wrap the periphery of the hydraulic inner mold as a whole, and the top cleaning groove and the side cleaning groove form a circulation. The debris in the top cleaning groove eventually falls into the horizontal cleaning groove below the side cleaning groove, and finally flows out from the side port into the pumping system.

[0016] The present invention provides a method for cleaning an in-situ cast-in-situ box girder hydraulic inner mold, which has the following beneficial effects: the method for cleaning an in-situ cast-in-situ box girder inner mold effectively solves the problem that the hydraulic inner mold is difficult to clean in a narrow space, and utilizes movable top and side cleaning racks in conjunction with a high-pressure water system and a brush to achieve thorough cleaning of concrete residues on the surface of the hydraulic inner mold, which not only improves the cleaning efficiency and quality, but also reduces manual operations and enhances safety. The circulation mechanism formed during the cleaning process ensures the effective collection and discharge of waste residues, and avoids secondary pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the hydraulic inner mold translation of the present invention; Figure 2This is a schematic diagram of the placement of the in-situ casting mold of the present invention; Figure 3 It is a schematic diagram of the layout of the cleaning device of the present invention; Figure 4 is a front view of the cleaning device of the present invention; Figure 5 It is a schematic diagram of the cleaning device of the present invention wrapping the hydraulic inner mold; Figure 6 is a cross-sectional view of the cleaning device of the present invention; Figure 7 is an axonometric view of the cleaning device of the present invention; Figure 8 is an isometric view of the cleaning device of the present invention in isolation; Fig. 9 is an axonometric view of the top cleaning rack of the present invention; Fig.10 is a schematic cross-sectional view of the top housing of the present invention; Fig.11 It is a schematic cross-sectional view of the walking support of the present invention.

[0018] In the figure: first mold 1; second mold 2; third mold 3; first gap 4; second gap 5; cleaning device 6; main truss 7; vertical frame 701; guide rail 702; crossbeam 703; top cleaning rack 8; top casing 801; top guide rod 802; limit plate 803; top filter tube 804; top cleaning tank 805; horizontal cleaning tank 806; end cleaning tank 807; magnetic plate 808; top water pipe 809; side cleaning rack 9; side casing 901; side guide rod 90 2; side water pipe 903; driving wheel 904; side filter pipe 905; side cleaning tank 906; inclined cleaning tank 907; horizontal cleaning tank 908; telescopic push rod 909; water storage tank 910; high-pressure water pump 911; filter element 912; brush 913; inclined platform 914; side port 915; flexible interface 916; walking support 10; walking shell 1001; walking water pipe 1002; water outlet 1003; walking wheel 1004; walking motor 1005; hydraulic inner mold 11. DETAILED DESCRIPTION

[0019] Example 1 like Figure 1-11 As shown, a method for cleaning an in-situ cast-in-situ box girder hydraulic inner mold comprises: S1, moving the cleaning device 6 to the first gap 4 between the first mold 1 and the second mold 2; S2, after the concrete pouring in the second mold 2 is completed, wait for the concrete to be cured; S3, start the cleaning device 6, and move the hydraulic inner mold 11 inside the second mold 2 into the first mold 1 through a winch; S4, when the hydraulic inner mold 11 passes through the first gap 4, the cleaning device 6 cleans the hydraulic inner mold 11; S5, moving the cleaning device 6 to the second gap 5 between the third mold 3 and the second mold 2; S6, after the concrete pouring in the first mold 1 is completed, wait for the concrete to be cured, start the cleaning device 6, and move the hydraulic inner mold 11 inside the first mold 1 into the third mold 3 through a winch; S7, when the hydraulic inner mold 11 passes through the second gap 5, the cleaning device 6 cleans the hydraulic inner mold 11; S8. Repeat steps S1-S7 to cast the in-situ cast-in-place box girder.

[0020] In the preferred embodiment, in step S1, the cleaning device 6 includes a main truss 7, walking supports 10 are provided on both sides of the main truss 7, a movable top cleaning rack 8 is provided above the main truss 7, and movable side cleaning racks 9 are provided on both sides of the top cleaning rack 8.

[0021] In the preferred embodiment, the main truss 7 includes a crossbeam 703, and vertical frames 701 are provided below both sides of the crossbeam 703, and the vertical frames 701 are arranged vertically to the crossbeam 703; The traveling support 10 is connected to the bottom of the vertical frame 701 , and a guide rail 702 is provided above the crossbeam 703 , and the top cleaning rack 8 and the side cleaning rack 9 move on the guide rail 702 .

[0022] In the preferred embodiment, the travel support 10 includes a travel housing 1001, a travel motor 1005 is provided below the travel housing 1001, and a travel wheel 1004 is provided at the output shaft end of the travel motor 1005, and the travel wheel 1004 is used for the cleaning device 6 to travel on the ground; A water outlet 1003 is also provided on one side of the walking shell 1001 , and the water outlet 1003 is used to be connected to an external water pumping system.

[0023] In the preferred embodiment, the top washing rack 8 includes a top housing 801, a plurality of telescopic push rods 909 are provided inside the top housing 801, a high-pressure water pump 911 is provided between the telescopic push rods 909, a water storage tank 910 is provided above the high-pressure water pump 911, and the water storage tank 910 is used to connect to the external water injection system; A limit plate 803 is provided below the telescopic push rod 909, and the telescopic push rod 909 and the limit plate 803 are connected via a top guide rod 802. A top water pipe 809 is provided below the high-pressure water pump 911, and a detachable top filter pipe 804 is provided below the limit plate 803, and the top water pipe 809 is connected to the top filter pipe 804. A top cleaning tank 805 is provided below the top filter tube 804 .

[0024] In a preferred embodiment, the top cleaning tank 805 includes a horizontal cleaning tank 806, and end cleaning tanks 807 are provided at both ends of the horizontal cleaning tank 806, and the end cleaning tanks 807 are arranged at a certain angle to the horizontal cleaning tank 806; A brush 913 is provided inside the horizontal cleaning groove 806 and the end cleaning groove 807, and the brush 913 is used to brush off the concrete debris on the surface of the hydraulic inner mold 11. A filter element 912 is provided inside the top filter tube 804. The top of the top filter tube 804 is threadedly connected to the limit plate 803, and the bottom of the top filter tube 804 is threadedly connected to the horizontal cleaning groove 806.

[0025] In the preferred embodiment, the side washing rack 9 includes a side housing 901, a plurality of telescopic push rods 909 are arranged inside the side housing 901, a high-pressure water pump 911 is arranged between the telescopic push rods 909, a water storage tank 910 is arranged above the high-pressure water pump 911, and the water storage tank 910 is used to connect to the external water injection system; A limit plate 803 is provided below the telescopic push rod 909, and the telescopic push rod 909 and the limit plate 803 are connected via a side guide rod 902. A side water pipe 903 is provided below the high-pressure water pump 911, and a detachable side filter pipe 905 is provided below the limit plate 803, and the side water pipe 903 is connected to the side filter pipe 905; A side cleaning tank 906 is provided below the side filter tube 905 .

[0026] In the preferred embodiment, the side cleaning groove 906 includes an oblique cleaning groove 907, and a horizontal cleaning groove 908 is provided below the oblique cleaning groove 907. The angle of the oblique cleaning groove 907 is consistent with the outer shape angle of the hydraulic inner mold 11, and the horizontal cleaning groove 908 is kept horizontal to the ground; A brush 913 is provided inside the inclined cleaning groove 907 and the horizontal cleaning groove 908, and the brush 913 is used to brush off the concrete debris on the surface of the hydraulic inner mold 11. A filter element 912 is provided inside the side filter tube 905. The upper part of the side filter tube 905 is threadedly connected to the limit plate 803, and the lower part of the side filter tube 905 is threadedly connected to the horizontal cleaning groove 806.

[0027] In the preferred embodiment, a sloping platform 914 is provided in the horizontal cleaning tank 908, and the sloping platform 914 is in a style of one side high and one side low. A side opening 915 is provided at the side cleaning tank 906 on the lower side of the sloping platform 914, and the sloping platform 914 is used to guide the water flow to the side opening 914; A flexible interface 916 is provided at the front end of the horizontal cleaning trough 908, and the flexible interface 916 is used for closing and buffering the horizontal cleaning troughs 908 on both sides. A walking water pipe 1002 is provided between the side port 915 and the walking support 10. The walking water pipe 1002 is a flexible pipe, and the walking water pipe 1002 is communicated with the water outlet 1003.

[0028] In the preferred embodiment, in step S1, the initial position of the side cleaning racks 9 of the cleaning device 6 is located at both ends of the crossbeam 703, and when cleaning is required, the side cleaning racks 9 are closed toward the hydraulic inner mold 11; The top cleaning groove 805 and the side cleaning groove 906 wrap the periphery of the hydraulic inner mold 11 as a whole, and the top cleaning groove 805 and the side cleaning groove 906 form a circulation. The debris in the top cleaning groove 805 eventually falls into the horizontal cleaning groove 908 below the side cleaning groove 906, and finally flows out from the side port 915 into the pumping system. The pumping system can be connected to the water purification device, and finally the purified water is re-transported to the water storage tank 910 for washing the hydraulic inner mold again, saving water. When the top cleaning groove 805 and the side cleaning groove 906 wrap the hydraulic inner mold 11, the inner wall of the groove is close to the hydraulic inner mold, and the brush 913 can brush off the debris on the hydraulic inner mold 11; A plurality of magnetic plates 808 are provided above the limit plate 803. When the limit plate 803 rises to be released from the beam 703, the magnetic plates 808 can hold the beam 703 to prevent the cleaning components from swinging violently when the walking support 10 moves. When the telescopic push rod 909 is extended downward, the magnetic plates 808 can be separated from the beam 703.

[0029] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A method for cleaning an in-situ cast-in-situ box girder hydraulic inner mold, characterized in that: The method includes: S1, moving the cleaning device (6) to the first gap (4) between the first mold (1) and the second mold (2); S2, after the concrete pouring in the second mold (2) is completed, wait for the concrete to be cured; S3, starting the cleaning device (6) to move the hydraulic inner mold (11) inside the second mold (2) into the first mold (1) via a winch; S4, when the hydraulic inner mold (11) passes through the first gap (4), the cleaning device (6) cleans the hydraulic inner mold (11); S5, moving the cleaning device (6) to the second gap (5) between the third mold (3) and the second mold (2); S6, after the pouring of concrete in the first mold (1) is completed, wait for the concrete to be cured, start the cleaning device (6), and move the hydraulic inner mold (11) inside the first mold (1) into the third mold (3) via a winch; S7, when the hydraulic inner mold (11) passes through the second gap (5), the cleaning device (6) cleans the hydraulic inner mold (11); S8. Repeat steps S1-S7 to cast the in-situ cast-in-place box girder.

2. The method for cleaning the hydraulic inner mold of an in-situ cast-in-situ box beam according to claim 1, characterized in that: In step S1, the cleaning device (6) comprises a main truss (7), walking supports (10) are provided on both sides of the main truss (7), a movable top cleaning rack (8) is provided above the main truss (7), and movable side cleaning racks (9) are provided on both sides of the top cleaning rack (8).

3. A method for cleaning an in-situ cast-in-situ box beam hydraulic inner mold according to claim 2, characterized in that: The main truss (7) comprises a crossbeam (703), and vertical frames (701) are provided below both sides of the crossbeam (703), and the vertical frames (701) are arranged vertically to the crossbeam (703); The walking support (10) is connected to the bottom of the vertical frame (701), and a guide rail (702) is provided above the crossbeam (703), and the top cleaning frame (8) and the side cleaning frame (9) move on the guide rail (702).

4. The method for cleaning the hydraulic inner mold of an in-situ cast-in-situ box beam according to claim 2, characterized in that: The travel support (10) comprises a travel housing (1001), a travel motor (1005) is provided below the travel housing (1001), a travel wheel (1004) is provided at the output shaft end of the travel motor (1005), and the travel wheel (1004) is used for the cleaning device (6) to travel on the ground; A water outlet (1003) is also provided on one side of the walking shell (1001) and is used to be connected to an external water pumping system.

5. The method for cleaning the hydraulic inner mold of an in-situ cast-in-situ box beam according to claim 2, characterized in that: The top washing rack (8) comprises a top housing (801), a plurality of telescopic push rods (909) are arranged inside the top housing (801), a high-pressure water pump (911) is arranged between the telescopic push rods (909), a water storage tank (910) is arranged above the high-pressure water pump (911), and the water storage tank (910) is used to connect to an external water injection system; A limit plate (803) is provided below the telescopic push rod (909); the telescopic push rod (909) and the limit plate (803) are connected via a top guide rod (802); a top water pipe (809) is provided below the high-pressure water pump (911); a detachable top filter pipe (804) is provided below the limit plate (803); and the top water pipe (809) is connected to the top filter pipe (804); A top cleaning tank (805) is provided below the top filter tube (804).

6. A method for cleaning an in-situ cast-in-situ box beam hydraulic inner mold according to claim 5, characterized in that: The top cleaning groove (805) comprises a horizontal cleaning groove (806), and end cleaning grooves (807) are provided at both ends of the horizontal cleaning groove (806), and the end cleaning grooves (807) are arranged at a certain angle to the horizontal cleaning groove (806); A brush (913) is provided inside the horizontal cleaning groove (806) and the end cleaning groove (807), and the brush (913) is used to brush away concrete debris on the surface of the hydraulic inner mold (11). A filter element (912) is provided inside the top filter tube (804). The top of the top filter tube (804) is threadedly connected to the limit plate (803), and the bottom of the top filter tube (804) is threadedly connected to the horizontal cleaning groove (806).

7. The method for cleaning the hydraulic inner mold of an in-situ cast-in-situ box beam according to claim 2, characterized in that: The side washing rack (9) comprises a side housing (901), a plurality of telescopic push rods (909) are arranged inside the side housing (901), a high-pressure water pump (911) is arranged between the telescopic push rods (909), a water storage tank (910) is arranged above the high-pressure water pump (911), and the water storage tank (910) is used to connect to an external water injection system; A limit plate (803) is provided below the telescopic push rod (909); the telescopic push rod (909) and the limit plate (803) are connected via a side guide rod (902); a side water pipe (903) is provided below the high-pressure water pump (911); a detachable side filter pipe (905) is provided below the limit plate (803); and the side water pipe (903) is in communication with the side filter pipe (905); A side cleaning tank (906) is provided below the side filter tube (905).

8. A method for cleaning an in-situ cast-in-situ box beam hydraulic inner mold according to claim 7, characterized in that: The side cleaning groove (906) comprises an inclined cleaning groove (907), a horizontal cleaning groove (908) is provided below the inclined cleaning groove (907), the angle of the inclined cleaning groove (907) is consistent with the outer shape angle of the hydraulic inner mold (11), and the horizontal cleaning groove (908) is kept horizontal with the ground; A brush (913) is provided inside the inclined cleaning groove (907) and the horizontal cleaning groove (908), and the brush (913) is used to brush away concrete debris on the surface of the hydraulic inner mold (11). A filter element (912) is provided inside the side filter tube (905). The upper part of the side filter tube (905) is threadedly connected to the limit plate (803), and the lower part of the side filter tube (905) is threadedly connected to the horizontal cleaning groove (806).

9. A method for cleaning an in-situ cast-in-situ box beam hydraulic inner mold according to claim 8, characterized in that: An inclined platform (914) is provided in the horizontal cleaning tank (908), and the inclined platform (914) is in a style of one side being higher and the other side being lower. A side opening (915) is provided at the side cleaning tank (906) on the lower side of the inclined platform (914), and the inclined platform (914) is used to guide water flow to flow toward the side opening (914); A flexible interface (916) is provided at the front end of the horizontal cleaning trough (908), and the flexible interface (916) is used for closing and buffering the horizontal cleaning troughs (908) on both sides. A running water pipe (1002) is provided between the side opening (915) and the running support (10), and the running water pipe (1002) is a flexible pipe, and the running water pipe (1002) is in communication with the water outlet (1003).

10. The method for cleaning the hydraulic inner mold of an in-situ cast-in-situ box beam according to claim 1, characterized in that: In step S1, the side cleaning racks (9) of the cleaning device (6) are initially located at the two ends of the crossbeam (703), and when cleaning is required, the side cleaning racks (9) are closed toward the hydraulic inner mold (11); The top cleaning groove (805) and the side cleaning groove (906) integrally wrap around the periphery of the hydraulic inner mold (11), and the top cleaning groove (805) and the side cleaning groove (906) form a circulation, and the debris in the top cleaning groove (805) eventually falls into the horizontal cleaning groove (908) below the side cleaning groove (906), and finally flows out from the side port (915) into the pumping system.

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