A foundation pit support system for bridge main pier cap

Abstract

The invention discloses a foundation pit support system for a bridge main pier cap, which relates to the technical field of building construction, and comprises a first standard steel formwork and a second standard steel formwork, wherein the side walls of the first standard steel formwork and the second standard steel formwork are both provided with through holes; a T-shaped plate is fixedly connected to the top of the first standard steel formwork and the second standard steel formwork; a moving component is slidably connected to the T-shaped plate; the moving component comprises a moving plate, and an inner side wall of the moving plate is slidably connected to the T-shaped plate; while a spraying pipe is driven to move left and right by the moving plate, the spraying pipe reciprocates up and down with the assistance of a cylindrical cam, so that a demoulding agent transmitted by the spraying pipe can be evenly covered on the inner side walls of the first standard steel formwork and the second standard steel formwork, thereby ensuring the demoulding effect of the inner side walls of the formwork and improving the quality of concrete components.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a foundation pit support system for a bridge main pier cap. Background Art

[0002] In the prior art, the foundation pit of the main pier cap of the bridge is hoisted by a truck crane to lift the steel formwork into the foundation pit for installation. After the steel formwork is installed, when pouring the pouring space in the cap, a cement tank truck loaded with concrete is moved to the periphery of the foundation pit, and concrete is transported through a discharge pipe to pour the cap. It is necessary to continuously drive the cement tank truck to change the pouring position of the discharge pipe, which reduces the pouring efficiency and may extend the construction period. Summary of the invention

[0003] Therefore, in order to solve the above-mentioned deficiencies, the present invention provides a bridge main pier cap foundation pit support system.

[0004] The present invention is achieved in this way: a foundation pit support system for a bridge main pier cap is constructed, the device comprises a first standard steel formwork and a second standard steel formwork, the side walls of the first standard steel formwork and the second standard steel formwork are both provided with through holes; a T-shaped plate is fixedly connected to the top of the first standard steel formwork and the second standard steel formwork; a moving component is slidably connected to the T-shaped plate; the moving component comprises a moving plate, the inner side wall of the moving plate is slidably connected to the T-shaped plate, the side wall of the moving plate is rotatably connected to the first roller, the side wall of the moving plate is fixedly connected to a driving motor, and the output shaft of the driving motor drives the second roller to be rotatably connected to the side wall of the moving plate; a guide frame is fixedly connected to the top of the moving plate, the side wall of the guide frame is rotatably connected to a swing frame, and the gap between the swing frame and the guide frame is connected by a connecting membrane; the side wall of the upper opening of the guide frame is connected to a traction rope and a guide bag, and the traction rope and the guide bag are slidably connected to the U-shaped groove in the U-shaped frame.

[0005] In a feasible implementation, a connecting ear is fixedly connected to the side wall of the U-shaped frame, a T-shaped rod is fixedly connected to the bottom of the U-shaped frame, a winding roller is rotatably connected to the T-shaped rod, and the center of the winding roller is fixedly connected to the output shaft of the servo motor.

[0006] In a feasible implementation manner, the servo motor is fixedly connected to the side wall of the T-shaped rod; the other end of the traction rope and the diversion bag away from the diversion frame is rolled up on the winding roller.

[0007] In a feasible implementation, the other side wall of the movable plate away from the driving motor is fixedly connected to a connecting frame, the bottom of the connecting frame is rotatably connected to a large gear, and the center of the large gear is fixedly connected to the contact wheel.

[0008] In a feasible implementation, the large gear meshes with the small gear, the small gear is rotationally connected to the bottom of the connecting frame, the center of the small gear is fixedly connected to the cylindrical cam, and the cylindrical cam is rotationally connected to the inside of the connecting frame.

[0009] In a feasible implementation manner, an insertion rod is slidably inserted into the sliding groove on the side wall of the cylindrical cam, the insertion rod is rotationally connected to the side wall of the sliding rod, and the sliding rod is slidably connected to the inner wall of the connecting frame.

[0010] In a feasible implementation manner, the side wall of the other end of the sliding rod away from the insertion rod is fixedly connected to an embedding frame, and the side wall of the embedding frame is provided with a threaded groove.

[0011] In a feasible implementation manner, the top of the sliding rod is connected to the bottom of the swing frame via a pull rope.

[0012] The present invention has the following advantages: The present invention provides a bridge main pier cap foundation pit support system through improvement, which has the following improvements compared with the same type of equipment:

[0013] The bridge main pier foundation pit support system described in the present invention drives the spray pipe to move left and right through the movable plate, and at the same time, the spray pipe reciprocates up and down with the assistance of a cylindrical cam, so that the release agent transmitted by the spray pipe can evenly cover the inner walls of the first and second fixed steel templates, thereby ensuring the demoulding effect of the inner walls of the templates and improving the quality of concrete components.

[0014] The bridge main pier foundation pit support system described in the present invention realizes dynamic adjustment of the concrete pouring position through the cooperation of the movable plate, the guide frame and the swing frame. At the same time, the up and down swinging of the swing frame further promotes the uniform distribution of concrete and improves the pouring quality.

[0015] The bridge main pier foundation pit support system described in the present invention, through the cooperation of a U-shaped frame, a traction rope and a diversion bag, enables the concrete on the cement tank truck to be conveniently transported to different positions in the foundation, without the need to frequently move the cement tank truck, thereby greatly improving the construction efficiency.

[0016] The bridge main pier cap foundation pit support system described in the present invention facilitates pretreatment of the shaped steel formwork, transportation of cap pouring concrete and concrete curing, thereby improving construction efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 It is a schematic diagram of the first shaped steel template structure of the present invention;

[0019] Figure 3 The mobile component structure of the present invention is schematically shown in FIG. Figure 1 ;

[0020] Figure 4 The mobile component structure of the present invention is schematically shown in FIG. Figure 2 ;

[0021] Figure 5 It is a schematic diagram of the connection structure between the U-shaped frame and the diversion bag of the present invention;

[0022] Figure 6 This is a schematic diagram of the connection structure between the U-shaped frame and the cement tank truck of the present invention;

[0023] Figure 7 Is a schematic structural diagram of the cylindrical cam and the sliding rod connection relationship of the present invention;

[0024] Figure 8 is a schematic diagram of the connection between the mobile assembly and the spray pipe of the present invention;

[0025] Fig. 9 It is a schematic diagram of the connection between the mobile assembly and the water spray pipe of the present invention.

[0026] Among them: the first shaped steel template -1, the second shaped steel template -2, the through hole -3, the T-shaped plate -4, the movable plate -5, the first roller -6, the drive motor -7, the second roller -8, the connecting frame -9, the contact wheel -10, the large gear -11, the small gear -12, the cylindrical cam -13, the insertion rod -14, the sliding rod -15, the embedded frame -16, the threaded groove -17, the guide frame -18, the connecting film -181, the swing frame -19, the U-shaped frame -20, the connecting ear -201, the U-shaped groove -21, the T-shaped rod -22, the winding roller -23, the servo motor -24, the traction rope -211, and the guide bag -212. DETAILED DESCRIPTION

[0027] The following will be combined with the attached Figure 1-Figure 9 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are made clear. The complete description is obvious. The described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figures 1 to 9 A bridge main pier foundation pit support system of the present invention comprises a first standard steel formwork 1 and a second standard steel formwork 2, and the side walls of the first standard steel formwork 1 and the second standard steel formwork 2 are both provided with through holes 3; the first standard steel formwork 1 and the second standard steel formwork 2 are lifted by an external automobile crane and transported to a concrete cushion layer in the foundation pit of the foundation, and then the first standard steel formwork 1 and the second standard steel formwork 2 are spliced, and the first standard steel formwork 1 and the second standard steel formwork 2 are fixed in the foundation pit by tension bolts and external auxiliary supports; a solid foundation is provided for subsequent concrete pouring.

[0029] Specifically, a T-shaped plate 4 is fixedly connected to the top of the first steel formwork 1 and the second steel formwork 2; after the first steel formwork 1 and the second steel formwork 2 are spliced, the T-shaped plates 4 on the first steel formwork 1 and the second steel formwork 2 form a slide rail, and the moving assembly can move on the slide rail; the moving assembly can move flexibly in the foundation pit, which is convenient for adjusting the pouring position according to construction needs, thereby improving construction efficiency and flexibility.

[0030] Specifically, a moving component is slidably connected to the T-shaped plate 4; the moving component includes a moving plate 5, an inner side wall of the moving plate 5 is slidably connected to the T-shaped plate 4, and a plurality of groups of balls are movably connected to the contact area between the inner side wall of the moving plate 5 and the T-shaped plate 4 to facilitate the movement of the moving plate 5, the side wall of the moving plate 5 is rotatably connected to the first roller 6, and the side wall of the moving plate 5 is fixedly connected to the driving motor 7, and the output shaft of the driving motor 7 drives the second roller 8 to be rotatably connected to the side wall of the moving plate 5; when the T-shaped plate 4 is slidably connected to the moving plate 5, the bottom of the first roller 6 and the second roller 8 on the moving plate 5 are in contact with the top of the first and second shaped steel templates 1 and 2, so that the driving motor 7 drives the moving plate 5 to move through the second roller 8 while rotating; at the same time, the contact wheel 10 contacts the T-shaped plate 4, so that the moving plate 5 drives the contact wheel 10 to rotate during the movement.

[0031] Specifically, the movable plate 5 and the T-shaped rod 22 are provided with batteries, controllers and wireless communication modules. The instructions are transmitted to the wireless communication module by remote control. When the wireless communication module receives the signal, it will transmit the signal to the controller. The controller will convert the signal into a control signal to directly control the servo motor 24 and the drive motor 7.

[0032] Specifically, the side wall of the other end of the movable plate 5 away from the driving motor 7 is fixedly connected with a connecting frame 9, and the bottom of the connecting frame 9 is rotatably connected with a large gear 11. When the movable plate 5 moves, the large gear 11 is driven to rotate by the contact wheel 10, and the center of the large gear 11 is fixedly connected to the contact wheel 10, and the large gear 11 is meshed with the small gear 12. The small gear 12 is rotatably connected to the bottom of the connecting frame 9, and the center of the small gear 12 is fixedly connected to the cylindrical cam 13, and the cylindrical cam 13 is rotatably connected to the inside of the connecting frame 9. An insertion rod 14 is slidably inserted into the sliding groove on the side wall of the cylindrical cam 13, and the insertion rod 14 is rotatably connected to the side wall of the sliding rod 15, and the sliding rod 15 is slidably connected to the inner wall of the connecting frame 9, and the other end side wall of the sliding rod 15 is away from the insertion rod 14 An embedded frame 16 is fixedly connected, and a threaded groove 17 is provided on the side wall of the embedded frame 16; an external spray pipe or water spray pipe can be inserted into the embedded frame 16, and the spray pipe or water spray pipe is squeezed and fixed by screwing an external screw into the threaded groove 17, so that the spray pipe is confined in the embedded frame 16; the spray pipe is used to spray the release agent onto the inner wall of the first shaped steel template 1 and the second shaped steel template 2; the water spray pipe is used to spray water on the top of the poured concrete for maintenance; during the movement of the movable plate 5, the spray pipe is driven to move left and right, and the spray pipe is reciprocated up and down with the assistance of the cylindrical cam 13, so that the release agent transmitted by the spray pipe can be evenly covered on the inner wall of the first shaped steel template 1 and the second shaped steel template 2.

[0033] Specifically, the top of the movable plate 5 is fixedly connected to the guide frame 18, the side wall of the guide frame 18 is rotatably connected to the swing frame 19, the gap between the swing frame 19 and the guide frame 18 is connected by a connecting membrane 181, the top of the sliding rod 15 is connected to the bottom of the swing frame 19 through a pull rope, one end of the pull rope is fixedly connected to the top of the sliding rod 15, and the two ends of the connecting membrane 181 are respectively fixedly connected to the side walls of the swing frame 19 and the guide frame 18.

[0034] Specifically, the upper opening side wall of the guide frame 18 is connected to the traction rope 211 and the guide bag 212, and the two ends of the guide bag 212 are respectively connected to the traction rope 211. The two groups of traction ropes 211 are respectively fixedly connected to the upper two ends of the opening side wall of the other end of the guide frame 18 away from the connecting film 181, and the other end of the opening side wall of the guide frame 18 away from the connecting film 181 is fixedly connected to the guide bag 212, so that the flowing concrete in the guide bag 212 can slide into the inside of the guide frame 18, and the traction rope 211 and the guide bag 212 are slidably connected to the U-shaped groove 21 in the U-shaped frame 20. The area where the U-shaped groove 21 is connected to the traction rope 211 is circular and connected to the traction rope 211. The diameter of the rope 211 is consistent, and the width of the lower end area of ​​the U-shaped groove 21 and the sliding area of ​​the guide bag 212 is smaller than the diameter of the traction rope 211, so as to prevent the traction rope 211 from sliding to the lower end area of ​​the U-shaped groove 21. The side wall of the U-shaped frame 20 is fixedly connected with a connecting ear 201, and a threaded hole is provided in the connecting ear 201. The bottom of the U-shaped frame 20 is fixedly connected with a T-shaped rod 22, and a winding roller 23 is rotatably connected to the T-shaped rod 22. The center of the winding roller 23 is fixedly connected to the output shaft of the servo motor 24, and the servo motor 24 is fixedly connected to the side wall of the T-shaped rod 22; the other end of the traction rope 211 and the guide bag 212 away from the guide frame 18 is wound on the winding roller 23.

[0035] Specifically, when the U-shaped frame 20 is not in use, the U-shaped frame 20 can be placed on the movable plate 5 (such as Figure 3 As shown); a U-shaped rubber scraping plate is provided at both ends of the U-shaped groove 21, and the U-shaped rubber scraping plate contacts the side wall of the diversion bag 212, and is used to scrape off the concrete on the side wall of the diversion bag 212 when the diversion bag 212 is recovered.

[0036] Specifically, when pouring concrete in the foundation pit, the external cement tanker moves to the soil above the foundation pit, and the hydraulic cylinder on the cement tanker is controlled to adjust the angle of the discharge pipe to the required position, and the U-shaped frame 20 is put on the surface of the discharge pipe on the cement tanker, and then the screw is screwed into the connecting ear 201 in the U-shaped frame 20 to squeeze and contact the surface of the discharge pipe, so that the U-shaped frame 20 is restricted on the discharge pipe, and the concrete on the cement tanker falls into the discharge pipe, and then slides down to the diversion bag 212, flows into the diversion frame 18 through the diversion bag 212, and finally slides into the casting space in the foundation through the swing frame 19; at the same time, the drive motor 7 can be turned on to drive the second roller 8 to rotate, and the second roller 8 drives the movable plate 5 to slide on the T-shaped plate 4, so that the movable plate 5 drives the diversion frame 18 and the swing frame 19 to move and adjust the position left and right on the T-shaped plate 4, and controls the concrete pouring to different positions in the foundation.

[0037] Specifically, when the movable plate 5 moves, the movable plate 5 drives the contact wheel 10 to squeeze and contact with the side wall of the T-shaped plate 4, the contact wheel 10 is driven to rotate, the contact wheel 10 drives the large gear 11 to rotate, the large gear 11 drives the small gear 12 to rotate, the small gear 12 drives the cylindrical cam 13 to rotate, the cylindrical cam 13 pushes the sliding rod 15 to slide up and down through the insertion rod 14, when the sliding rod 15 slides upward, the sliding rod 15 pushes the swing frame 19 upward to swing; when the sliding rod 15 slides downward, the sliding rod 15 pulls the swing frame 19 downward through the pull rope to swing; the swing frame 19 swings back and forth up and down.

[0038] Specifically, while the movable plate 5 moves, the spacing between the guide frame 18 and the U-shaped frame 20 increases, and the servo motor 24 is controlled to drive the winding roller 23 to rotate. The winding roller 23 releases the traction rope 211 and the guide bag 212 to be reeled in, and the guide bag 212 slides through the U-shaped groove 21. The exposed length of the guide bag 212 increases, so that the movable plate 5 pulls the guide bag 212 to unfold during the movement. The guide bag 212 and the traction rope 211 are in a taut state, which facilitates the transportation of concrete in the cement tank truck to different positions of the casting space in the foundation, avoiding repeatedly driving the cement tank truck to move and adjust the casting position.

[0039] The above shows and describes the basic principle, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0040] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bridge main pier cap foundation pit support system, comprising a first shaped steel template and a second shaped steel template, wherein the side walls of the first shaped steel template and the second shaped steel template are both provided with through holes; Features: A T-shaped plate is fixedly connected to the top of the first shaped steel template and the second shaped steel template; A moving component is slidably connected to the T-shaped plate; The moving assembly includes a moving plate, the inner side wall of the moving plate is slidably connected to the T-shaped plate, the side wall of the moving plate is rotatably connected to the first roller, the side wall of the moving plate is fixedly connected to the driving motor, and the output shaft of the driving motor drives the second roller to be rotatably connected to the side wall of the moving plate; The top of the moving plate is fixedly connected with a guide frame, the side wall of the guide frame is rotatably connected with a swing frame, and the gap between the swing frame and the guide frame is connected by a connecting film; The open side wall at the upper end of the guide frame is connected to the traction rope and the guide bag, and the traction rope and the guide bag are slidably connected to the U-shaped groove in the U-shaped frame; The side wall of the U-shaped frame is fixedly connected with a connecting ear, the bottom of the U-shaped frame is fixedly connected with a T-shaped rod, the T-shaped rod is rotatably connected with a winding roller, and the center of the winding roller is fixedly connected to the output shaft of the servo motor; The servo motor is fixedly connected to the side wall of the T-shaped rod; the other end of the traction rope and the diversion bag away from the diversion frame is rolled up on the winding roller; A connecting frame is fixedly connected to the side wall of the other end of the moving plate away from the driving motor, and a large gear is rotatably connected to the bottom of the connecting frame, and the center of the large gear is fixedly connected to the contact wheel.

2. A bridge main pier cap foundation pit support system according to claim 1, characterized in that: The large gear meshes with the small gear, the small gear is rotationally connected to the bottom of the connecting frame, the center of the small gear is fixedly connected to the cylindrical cam, and the cylindrical cam is rotationally connected to the inside of the connecting frame.

3. A bridge main pier cap foundation pit support system according to claim 2, characterized in that: An insertion rod is slidably inserted into the sliding groove on the side wall of the cylindrical cam, the insertion rod is rotationally connected with the side wall of the sliding rod, and the sliding rod is slidably connected with the inner side wall of the connecting frame.

4. A bridge main pier cap foundation pit support system according to claim 3, characterized in that: The side wall of the other end of the sliding rod away from the insertion rod is fixedly connected with an embedding frame, and the side wall of the embedding frame is provided with a thread groove.

5. A bridge main pier cap foundation pit support system according to claim 3, characterized in that: The top of the sliding rod is connected to the bottom of the swing frame through a pull rope.

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