Electric elevator for installing bridge wet joint formwork

Abstract

The utility model discloses an electric elevator for installing a bridge wet joint template, which relates to the technical field of bridge joint connection construction and comprises a bottom support frame, four rollers are fixedly arranged at four corners of the bottom of the bottom support frame, and four support rods are fixedly connected to four corners of the top of the bottom support frame. A top supporting frame is fixedly connected to the top ends of the four supporting rods, a top plate is fixedly connected between the front inner wall and the rear inner wall of the top supporting frame, and a through cavity is formed in the top of the top plate. During use, a template is tightly sucked through the air suction pump, the air suction pipe, the metal pipe and the suction cup, and then the top end of the metal pipe is located on the upper side of the top supporting frame, so that a worker can move and adjust the position of the template as long as the worker stands and holds the metal pipe, the template reaches the designated position, and the adjacent templates are aligned; and the working posture of workers is more comfortable and labor-saving, the labor intensity of the workers is effectively reduced, and the efficiency of formwork installation work is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge joint connection construction, in particular to an electric lift for installing a wet joint formwork of a bridge. Background Technique

[0002] In recent years, vigorously developing prefabricated environmental protection materials has become a new trend in the construction industry. The prefabricated environmental protection materials have been widely used in the field of building construction. This construction method can significantly improve work efficiency, shorten the production period, and also improve the stability of building quality.

[0003] The wet joint of a bridge refers to the joint where the prestressed concrete beam bodies are prefabricated in blocks, cantilever assembled into a long-span continuous beam, and the beam bodies are connected into a whole by cast-in-place concrete. Connections are required between prefabricated components or between prefabricated components and precast components that have already been cast in place. In addition to steel bar connections, cast-in-place concrete should also be used at the connection part, which is called the wet joint. During construction, formwork is needed to limit and support the concrete to be hardened at the joint. In the existing construction process of casting and connecting the wet joint of a bridge, workers stand on both sides of the wet joint with their feet respectively and use a pulling rope to lift the formwork so that the formwork is lifted to the designated position, and at the same time, adjacent formworks are aligned. Then, another constructor fixes the tie rod on the formwork to the crossbeam above the beam slab. In this way, the installation of the formwork can be completed. However, manually lifting the formwork by pulling the rope is laborious, and the installation efficiency is low.

[0004] The Chinese invention patent with the patent application number CN202210324942.X records a lifting device for a wet joint formwork of a bridge. It installs an electric hoist through a vertically arranged support frame, universal wheels and a support component and drives the electric hoist to move along the wet joint. Subsequently, the formwork is automatically lifted by the electric hoist to connect the formwork with the crossbeam at one time to complete the installation of the formwork. However, although the electric hoist is used to replace manual labor to complete the lifting and pulling work of the formwork in the above device, when installing the formwork, the pulling rope of the electric hoist cannot limit the formwork. Workers need to squat down to manually adjust the position of the formwork so that the formwork reaches the designated installation position and adjacent formworks are aligned before the formwork can be fixed, and the installation efficiency of the formwork cannot be significantly improved. Summary of the Utility Model

[0005] The purpose of this application is to provide an electric lift for installing a wet joint formwork of a bridge to solve the problem that the pulling rope of the electric hoist in the above background technique cannot limit the formwork, and workers need to squat down to manually adjust the position of the formwork so that the formwork reaches the designated installation position and adjacent formworks are aligned before the formwork can be fixed, and the installation efficiency of the formwork cannot be significantly improved.

[0006] To achieve the above object, the present application provides the following technical solution: An electric elevator for installing the wet joint formwork of a bridge, including a bottom support frame. Four rollers are fixedly installed at the four corners of the bottom of the bottom support frame. Four support rods are fixedly connected to the four corners of the top of the bottom support frame. The top ends of the four support rods are fixedly connected to a top support frame. A top plate is fixedly connected between the front and rear inner walls of the top support frame. A through cavity is formed in the top of the top plate. An electric hoist is fixedly connected to the top of the top plate. A pulling rope is connected to the electric hoist. The pulling rope penetrates through the through cavity and extends to the lower side of the bottom support frame. An air suction pump is installed on the top of the top plate. The air suction end of the air suction pump is communicated with an air suction pipe. The other end of the air suction pipe is communicated with a metal pipe. The top end of the metal pipe is located above the top support frame. The bottom end of the metal pipe is communicated with a suction cup.

[0007] Preferably, it further includes a lifting component provided on the top of the bottom support frame. The lifting component includes hydraulic cylinders symmetrically and fixedly connected to the top of the bottom support frame. The metal pipe is installed on the output end of the hydraulic cylinder. The advantage of this setting is that after the formwork is adsorbed by the suction cup, the hydraulic cylinder can drive the metal pipe and the suction cup to rise to lift the formwork, eliminating the need for workers to laboriously lift the formwork, saving the physical strength of the workers and reducing the labor intensity of the workers.

[0008] Preferably, the lifting component further includes a support plate fixedly connected to the output end of the hydraulic cylinder. A rotating plate is rotatably connected to the top of the support plate. A rectangular cavity is formed in the top of the rotating plate. Two sliding grooves are symmetrically formed on the front and rear inner walls of the rectangular cavity. Two sliding blocks are symmetrically and slidably connected in the two sliding grooves. A moving block is fixedly connected between the side surfaces of the two sliding blocks close to each other. The metal pipe is fixedly inserted into the top of the moving block. The bottom end of the metal pipe penetrates through the bottom of the moving block and is communicated with the suction cup. The advantage of this setting is that after the formwork is tightly adsorbed by the suction cup, the position of the formwork can be adjusted by moving the suction cup, so that the formwork can reach the designated position and the adjacent formworks can be aligned, improving the efficiency of the formwork installation work.

[0009] Preferably, the number of the air suction pipes is two. The two air suction pipes are respectively communicated with the metal pipes. The lifting component further includes a rotating pipe rotatably connected to the bottom end of the metal pipe. The bottom end of the rotating pipe is communicated with the suction cup. The advantage of this setting is that after the formwork is tightly adsorbed by the two suction cups, under the rotation of the rotating pipe, the worker can move one of the metal pipes while keeping the other metal pipe stationary to adjust the horizontal position of the formwork. Compared with one suction cup, it is more labor-saving to lift the formwork and adjust the horizontal position of the formwork, effectively reducing the labor intensity of the workers and improving the efficiency of the installation work.

[0010] Preferably, the lifting assembly further includes two groups of electromagnet bars symmetrically and fixedly connected to the front and rear inner walls of the rectangular cavity. The number of electromagnet bars in each group is two, and the two electromagnet bars in each group are symmetrically distributed on the upper and lower sides of the sliding groove. The moving block is made of iron. The advantage of this setting is that after the position of the template is adjusted, the electromagnet bars can be energized to tightly suck and fix the moving block, thus liberating the hands of the staff and eliminating the need for the staff to manually maintain the position of the template all the time, so that the template installation work can be completed by one person, greatly improving the practicability of the device.

[0011] In summary, the technical effects and advantages of the present utility model are as follows:

[0012] 1. In the present utility model, the template is tightly sucked through the suction pump, the suction pipe, the metal pipe and the suction cup. Then, the top of the metal pipe is located above the top support frame. In this way, the staff only needs to stand and hold the metal pipe to move and adjust the position of the template, so that the template reaches the designated position and the adjacent templates are aligned, making the working posture of the staff more comfortable and labor-saving, effectively reducing the labor intensity of the staff, and also improving the efficiency of the template installation work.

[0013] 2. In the present utility model, the lifting assembly can be used to automatically lift the template and the metal pipe, eliminating the need for the staff to lift the template by their own strength, further reducing the labor intensity of the staff, and effectively improving the practicability of the device. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is the first structural schematic diagram of an electric elevator for installing bridge wet joint templates in an embodiment of the present application;

[0016] Figure 2 It is the second structural schematic diagram of an electric elevator for installing bridge wet joint templates in an embodiment of the present application;

[0017] Figure 3 It is the second structural schematic diagram of an electric elevator for installing bridge wet joint templates in an embodiment of the present application;

[0018] Figure 4 In an embodiment of the present application Figure 1 The enlarged schematic diagram of part A;

[0019] Figure 5 In the embodiments of the present application Figure 3 is an enlarged schematic view of part B in

[0020] In the figure: 1, bottom support frame; 11, rollers; 2, support rods; 3, top support frame; 31, top plate; 4, electric hoist; 41, pulling rope; 5, suction pump; 51, suction pipe; 52, metal pipe; 53, suction cup; 6, lifting assembly; 61, hydraulic cylinder; 62, support plate; 63, rotating plate; 64, rectangular cavity; 65, chute; 66, slider; 67, moving block; 68, rotating pipe; 69, electromagnet bar. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1

[0023] Please refer to Figures 1-5 An electric elevator for installing a wet joint formwork of a bridge as shown, including a bottom support frame 1, four rollers 11 are fixedly installed at the four corners of the bottom of the bottom support frame 1. The rollers 11 can be universal wheels. Four support rods 2 are fixedly connected to the four corners of the top of the bottom support frame 1. The top ends of the four support rods 2 are fixedly connected to a top support frame 3. A top plate 31 is fixedly connected between the front and rear inner walls of the top support frame 3. A through cavity is formed in the top of the top plate 31. An electric hoist 4 is fixedly connected to the top of the top plate 31. A pulling rope 41 is connected to the electric hoist 4. The pulling rope 41 passes through the through cavity and extends to the lower side of the bottom support frame 1. A suction pump 5 is installed on the top of the top plate 31. The suction end of the suction pump 5 is communicated with a suction pipe 51. The other end of the suction pipe 51 is communicated with a metal pipe 52. The top end of the metal pipe 52 is located above the top support frame 3. The bottom end of the metal pipe 52 is communicated with a suction cup 53.

[0024] Refer to Figures 1-3 , and it further includes a lifting assembly 6 arranged on the top of the bottom support frame 1. The lifting assembly 6 includes hydraulic cylinders 61 symmetrically and fixedly connected to the top of the bottom support frame 1. The metal pipe 52 is installed on the output end of the hydraulic cylinder 61.

[0025] Specifically, when the formwork is adsorbed by the suction cup 53, the hydraulic cylinder 61 can drive the metal pipe 52 and the suction cup 53 to rise to lift the formwork, eliminating the need for workers to laboriously lift the formwork, saving the physical strength of the workers and reducing the labor intensity of the workers.

[0026] Embodiment 2

[0027] According to Embodiment 1, please refer to Figure 4 and Figure 5 , the lifting assembly 6 further includes a support plate 62 fixedly connected to the output end of the hydraulic cylinder 61. A rotating plate 63 is rotatably connected to the top of the support plate 62. A rectangular cavity 64 is formed in the top of the rotating plate 63. Two sliding grooves 65 are symmetrically formed in the front and rear inner walls of the rectangular cavity 64. Two sliders 66 are symmetrically and slidably connected in the two sliding grooves 65. A moving block 67 is fixedly connected between the side surfaces of the two sliders 66 close to each other. The metal pipe 52 is fixedly inserted into the top of the moving block 67. The bottom end of the metal pipe 52 penetrates through the bottom of the moving block 67 and is communicated with the suction cup 53.

[0028] Specifically, after the template is tightened by the suction cup 53, the template can be driven to move by moving the suction cup 53, so that the position of the template can be quickly adjusted, the template reaches the specified position and the adjacent templates are aligned, improving the efficiency of the template installation work.

[0029] Refer to Figures 1-3 , the number of the suction pipes 51 is two. The two suction pipes 51 are respectively communicated with the metal pipe 52. The lifting assembly 6 further includes a rotating pipe 68 rotatably connected to the bottom end of the metal pipe 52. The bottom end of the rotating pipe 68 is communicated with the suction cup 53.

[0030] Specifically, after the template is tightened by the two suction cups 53, under the rotation of the rotating pipe 68, the staff can move one of the metal pipes 52 while keeping the other metal pipe 52 stationary to adjust the horizontal position of the template. Compared with one suction cup 53, it is more labor-saving to lift the template and adjust the horizontal position of the template, effectively reducing the labor intensity of the staff and improving the efficiency of the installation work.

[0031] Embodiment 3

[0032] According to Embodiment 1 or 2, please refer to Figure 5 , the lifting assembly 6 further includes two groups of electromagnet bars 69 symmetrically and fixedly connected to the front and rear inner walls of the rectangular cavity 64. The number of each group of electromagnet bars 69 is two. The two electromagnet bars 69 in each group are symmetrically distributed on the upper and lower sides of the sliding groove 65. The moving block 67 is made of iron.

[0033] Specifically, after the position of the template is adjusted, the moving block 67 can be sucked and fixed by energizing the electromagnet bars 69, thus liberating the hands of the staff and eliminating the need for the staff to manually maintain the position of the template all the time, so that the template installation work can be completed by one person, greatly improving the practicability of the device.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electric lift for installing a bridge wet joint formwork, comprising a bottom support frame (1), wherein four rollers (11) are fixedly mounted at the four corners of the bottom of the bottom support frame (1), and characterized in that: Four support rods (2) are fixedly connected to the four corners of the top of the bottom support frame (1), and the top ends of the four support rods (2) are fixedly connected to the top support frame (3). A top plate (31) is fixedly connected between the front and rear inner walls of the top support frame (3), and a through cavity is opened at the top of the top plate (31). An electric winch (4) is fixedly connected to the top of the top plate (31), and a pull rope (41) is connected to the electric winch (4), and the pull rope (41) passes through the through cavity and extends to the lower side of the bottom support frame (1). An air suction pump (5) is installed on the top of the top plate (31), and the air suction end of the air suction pump (5) is connected to an air suction pipe (51), and the other end of the air suction pipe (51) is connected to a metal pipe (52), and the top end of the metal pipe (52) is located on the upper side of the top support frame (3), and the bottom end of the metal pipe (52) is connected to a suction cup (53).

2. The electric lift for installing bridge wet joint formwork according to claim 1, characterized in that: It also includes a lifting assembly (6) arranged on the top of the bottom support frame (1), the lifting assembly (6) includes a hydraulic cylinder (61) symmetrically fixedly connected to the top of the bottom support frame (1), and the metal pipe (52) is installed on the output end of the hydraulic cylinder (61).

3. The electric lift for installing a bridge wet joint formwork according to claim 2, characterized in that: The lifting assembly (6) also includes a support plate (62) fixedly connected to the output end of the hydraulic cylinder (61), the top of the support plate (62) is rotatably connected to a rotating plate (63), the top of the rotating plate (63) is provided with a rectangular cavity (64), the front and rear inner walls of the rectangular cavity (64) are symmetrically provided with two slide grooves (65), two sliders (66) are symmetrically slidably connected in the two slide grooves (65), a moving block (67) is fixedly connected between the adjacent sides of the two sliders (66), the metal tube (52) is fixedly inserted in the top of the moving block (67), and the bottom end of the metal tube (52) passes through the bottom of the moving block (67) and is connected to the suction cup (53).

4. The electric lift for installing bridge wet joint formwork according to claim 3 is characterized by: There are two suction pipes (51), and the two suction pipes (51) are respectively connected to a metal pipe (52). The lifting assembly (6) also includes a rotating pipe (68) rotatably connected to the bottom end of the metal pipe (52), and the bottom end of the rotating pipe (68) is connected to the suction cup (53).

5. The electric lift for installing bridge wet joint formwork according to claim 4, characterized in that: The lifting assembly (6) also includes two groups of electromagnet bars (69) symmetrically fixedly connected on the front and rear inner walls of the rectangular cavity (64), each group of the electromagnet bars (69) has two electromagnet bars (69), and each group of two electromagnet bars (69) are symmetrically distributed on the upper and lower sides of the slide groove (65), and the moving block (67) is made of iron.

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