Safety building construction lifting platform

Abstract

The utility model discloses a safety type building construction lifting platform which comprises a working table, a lifting mechanism and a supporting mechanism, a guardrail is arranged at the upper end of the working table, the lifting mechanism comprises first sliding grooves, an inner support, a base, a second sliding groove, an outer support and a transverse shaft, the first sliding grooves are formed in the front end and the rear end of the working table respectively, and the inner support is arranged on the base. The inner supports are slidably connected into the first sliding grooves through first pulleys, the lower ends of the inner supports are rotationally connected with the left ends of the close side walls of the base through first pin shafts, the outer supports are rotationally connected to the left ends of the front side wall and the rear side wall of the workbench through second pin shafts, and the second sliding grooves are formed in the front end and the rear end of the base correspondingly. And the supporting mechanisms are arranged on the left side and the right side of the base correspondingly, the safety type building construction lifting platform is provided with an auxiliary supporting mechanism capable of being adjusted and stored, auxiliary supporting is provided for the lifting platform, and the safety type building construction lifting platform is further provided with a limiting mechanism to prevent the workbench from falling due to hydraulic unbalance.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction lifting platforms, in particular to a safe building construction lifting platform. Background Art

[0002] Building construction refers to the production activities in the implementation stage of engineering construction. It is the construction process of various buildings. It can also be said to be the process of turning various lines on the design drawings into physical objects at designated locations. It includes foundation construction, main structure construction, roofing construction, decoration construction, etc. The place of construction is called "building construction site" or "construction site", also called construction site. In the process of building construction, people often use various auxiliary construction devices to carry out construction more efficiently. Among them, lifting platforms are particularly important. When constructing some higher positions, lifting platforms are often required. The existing lifting platforms can be divided into mobile, guide rail, curved arm, scissors and chain types. Among them, scissors-type lifting platforms are widely used due to their excellent load-bearing capacity. At the construction site, the scissors-type lifting platform adjusts its height by extending and retracting the scissors. When lifting is required, the hinges at both ends of the scissors will change their relative angles under the action of external force, causing the entire scissors structure to extend and deform, lifting the workbench upward. The base of a traditional lifting platform is mostly the same size as the workbench above. When the workbench is raised, the base has a low supporting effect on the workbench and requires an external auxiliary support device, which is very troublesome. During work at the construction site, it is often necessary to maintain the raised state for a long time to achieve the purpose of assisting construction. Since the lifting platform is driven by a hydraulic cylinder, there are safety hazards such as lack of oil in the hydraulic cylinder, aging or bursting of the oil pipe, which may cause the workbench to fall suddenly and cause a safety accident. For this reason, we propose a safe construction lifting platform. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a safe construction lifting platform. The platform is provided with an adjustable and retractable auxiliary support mechanism to provide auxiliary support for the lifting platform. A limiting mechanism is also provided to prevent the workbench from falling due to hydraulic imbalance, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safe construction lifting platform, comprising a workbench, a lifting mechanism and a supporting mechanism;

[0005] Workbench: There is a guardrail on the upper end;

[0006] Lifting mechanism: It includes a slide groove 1, an inner bracket, a base, a slide groove 2, an outer bracket and a transverse axis. The slide groove 1 is respectively opened at the front and rear ends of the workbench. The inner brackets are slidably connected to the inside of the slide groove 1 through a pulley 1. The lower ends of the inner brackets are rotatably connected to the left end of the adjacent side wall of the base through a pin shaft 1. The outer brackets are rotatably connected to the left ends of the front and rear side walls of the workbench through a pin shaft 2. The slide grooves 2 are respectively opened at the front and rear ends of the base. The lower ends of the outer brackets are slidably connected to the inner wall of the slide groove 2 through a pulley 2. The front and rear ends of the transverse axis are rotatably connected to the middle parts of the adjacent inner brackets and outer brackets, so that the lifting work can be performed quickly;

[0007] Support mechanism: It is respectively arranged on the left and right sides of the base, and is equipped with an adjustable and retractable auxiliary support mechanism to provide auxiliary support for the lifting platform. It is also equipped with a limit mechanism to prevent the workbench from falling due to hydraulic imbalance.

[0008] Furthermore, the lifting mechanism also includes a connecting shaft, a hydraulic cylinder and a hydraulic pump station. The connecting shaft is fixedly connected between the two outer brackets. The hydraulic pump station is arranged on the inner left side of the base. The input end of the hydraulic pump station is electrically connected to the output end of the single-chip microcomputer. The telescopic ends of the hydraulic cylinders are rotatably connected to the outer surface of the connecting shaft. The right sides of the fixed ends of the hydraulic cylinders are rotatably connected to the right upper end of the base. The oil change ports of the two hydraulic cylinders are connected to the oil port 1 of the hydraulic pump station through oil pipe 1, providing stable drive for the lifting work.

[0009] Furthermore, it also includes mounting hole two, a limit column, a spring and a limit hole. The mounting hole two is opened inside the pulley one, the limit columns are slidably connected to the inside of the mounting hole two, springs are placed between the middle of the movable end of the limit column and the inner wall of the mounting hole two, the springs are sleeved on the outer surface of the lower end of the limit column, the limit holes are respectively opened on the front and rear sides of the workbench, the outer surface of the limit end of the limit column is plugged into the inner wall of the adjacent limit hole, providing a limiting effect for the workbench.

[0010] Furthermore, the support mechanism includes a sliding hole, a sliding column, a connecting plate, a mounting hole 1 and a tension spring. The sliding holes are respectively opened on the left and right sides of the upper surface of the base. The sliding columns are slidably connected to the inside of the sliding holes. The upper ends of the two sliding columns on the same side are fixedly connected to the lower end of a connecting plate. A handle is provided in the middle of the upper end of the connecting plate. The mounting hole 1 is respectively opened in the middle of the left and right sides of the upper surface of the base. A tension spring is provided between the lower end of the connecting plate and the inner wall of the mounting hole 1, which provides a basis for facilitating the adjustment of the support mechanism.

[0011] Furthermore, the supporting mechanism also includes supporting legs, hexagonal holes and hexagonal columns. The supporting legs are rotatably connected to the four corners of the base respectively. The hexagonal holes are all opened at the upper ends of the rotating shafts of the supporting legs. The hexagonal columns are all fixedly connected to the bottom ends of the connecting plates. The outer surfaces of the hexagonal columns located at the lower end of the same connecting plate are all installed in cooperation with the vertically adjacent hexagonal holes, so that the deflection angle of the supporting legs can be quickly adjusted.

[0012] Furthermore, the support mechanism also includes a storage groove, which is respectively opened on the front and rear sides of the base, and the storage groove is installed in coordination with the supporting legs to facilitate the storage of the supporting legs.

[0013] Furthermore, it also includes a single-chip microcomputer, which is fixedly connected to the upper right side of the workbench, and the input end of the single-chip microcomputer is electrically connected to an external power supply to provide a control effect for the lifting work.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the safe construction lifting platform has the following advantages:

[0015] 1. Hold the handle tightly and pull upward, moving the connecting plate upward, and the sliding column also moves upward. The tension spring is forced to expand upward until the hexagonal column leaves the hexagonal hole. At this time, the outrigger loses its restriction and can be deflected at will. Move the outrigger outward from the inside of the storage slot 135 degrees. At this time, the hexagonal hole is aligned with the hexagonal column again. Release the handle, and the tension spring will shrink downward without force, moving the connecting plate downward at the same time. The hexagonal column enters the hexagonal hole again, restricting the outrigger. At this time, due to the outward extension of the outrigger, the supporting area of ​​the base is increased, and the supporting effect is more stable during the lifting and lowering process of construction.

[0016] 2. Pull the limit column outward, and the moving end of the limit column slides outward. The spring is compressed by force until the limit end of the limit column exceeds the front and rear sides of the workbench. Deflect the limit column upward 180 degrees to align the limit end of the limit column with the corresponding limit hole. Release the limit column, and the spring will expand without force, moving the moving end of the limit column inward. The limit end of the limit column also enters the limit hole simultaneously, so that the pulley can no longer move significantly. During the lifting process of construction, it can effectively prevent the workbench from falling due to hydraulic imbalance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the support mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the support mechanism structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model.

[0021] In the figure: 1 workbench, 2 guardrail, 3 single chip computer, 4 lifting mechanism, 41 slide slot 1, 42 inner bracket, 43 base, 44 slide slot 2, 45 outer bracket, 46 horizontal axis, 47 connecting axis, 48 ​​hydraulic cylinder, 49 hydraulic pump station, 5 supporting mechanism, 51 sliding hole, 52 sliding column, 53 connecting plate, 54 mounting hole 1, 55 tension spring, 56 support leg, 57 hexagonal hole, 58 hexagonal column, 59 storage slot, 6 mounting hole 2, 7 limit column, 8 spring, 9 limit hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 , this embodiment provides a technical solution: a safe construction lifting platform, including a workbench 1, a lifting mechanism 4 and a supporting mechanism 5;

[0024] Workbench 1: A guardrail 2 is provided at the upper end thereof to prevent falling and facilitate the buckling of a safety rope. It also includes a single-chip microcomputer 3, which is fixedly connected to the upper right side of the workbench 1. The input end of the single-chip microcomputer 3 is electrically connected to an external power supply to provide a control effect for the lifting work; it also includes a second mounting hole 6, a limit column 7, a spring 8 and a limit hole 9. The second mounting hole 6 is opened inside the pulley one, and the limit column 7 is slidably connected to the inside of the second mounting hole 6. A spring 8 is placed between the middle part of the moving end of the limit column 7 and the inner wall of the second mounting hole 6. The spring 8 is sleeved on the outer surface of the lower end of the limit column 7. The limit holes 9 are respectively opened on the front and rear sides of the workbench 1. The outer surface of the limit end of the limit column 7 is plugged into the inner wall of the adjacent limit hole 9 to provide a limiting effect for the workbench 1.

[0025] Lifting mechanism 4: It includes a slide groove 1 41, an inner bracket 42, a base 43, a slide groove 2 44, an outer bracket 45 and a transverse shaft 46. The slide groove 1 41 is respectively opened at the front and rear ends of the workbench 1. The inner bracket 42 is slidably connected to the inside of the slide groove 1 41 through a pulley 1. The lower end of the inner bracket 42 is rotatably connected to the left end of the adjacent side wall of the base 43 through a pin shaft 1. The outer bracket 45 is rotatably connected to the left end of the front and rear side walls of the workbench 1 through a pin shaft 2. The slide groove 2 44 is respectively opened at the front and rear ends of the base 43. The lower end of the outer bracket 45 is slidably connected to the inner wall of the slide groove 2 44 through a pulley 2. The front and rear ends of the transverse shaft 46 are connected to the adjacent inner The middle part of the bracket 42 and the outer bracket 45 is rotatably connected, and the lifting work can be performed quickly. The lifting mechanism 4 also includes a connecting shaft 47, a hydraulic cylinder 48 and a hydraulic pump station 49. The connecting shaft 47 is fixedly connected between the two outer brackets 45. The hydraulic pump station 49 is arranged on the inner left side of the base 43. The input end of the hydraulic pump station 49 is electrically connected to the output end of the single-chip computer 3. The telescopic ends of the hydraulic cylinders 48 are both rotatably connected to the outer surface of the connecting shaft 47. The right side of the fixed end of the hydraulic cylinder 48 is rotatably connected to the upper right end of the base 43. The oil change ports of the two hydraulic cylinders 48 are connected to the oil port 1 of the hydraulic pump station 49 through an oil pipe 1, providing stable drive for the lifting work;

[0026] Support mechanism 5: It is respectively arranged on the left and right sides of the base 43. The support mechanism 5 includes a sliding hole 51, a sliding column 52, a connecting plate 53, a mounting hole 54 and a tension spring 55. The sliding holes 51 are respectively opened on the left and right sides of the upper surface of the base 43. The sliding columns 52 are slidably connected to the inside of the sliding holes 51 to provide a guide for the connecting plate 53. The upper ends of the two sliding columns 52 on the same side are fixedly connected to the lower end of a connecting plate 53. A handle is provided in the middle of the upper end of the connecting plate 53. The mounting holes 54 are respectively opened in the middle of the left and right sides of the upper surface of the base 43. A tension spring 55 is provided between the lower end of the connecting plate 53 and the inner wall of the mounting hole 54 to facilitate the adjustment of the support mechanism 5. The support mechanism 5 further includes legs 56, hexagonal holes 57 and hexagonal columns 58. The legs 56 are rotatably connected to the four corners of the base 43 respectively. The hexagonal holes 57 are all provided at the upper ends of the rotation axes of the legs 56. The hexagonal columns 58 are all fixedly connected to the bottom ends of the connecting plates 53. The outer surfaces of the hexagonal columns 58 located at the lower ends of the same connecting plates 53 are all installed in cooperation with the vertically adjacent hexagonal holes 57, so that the deflection angles of the legs 56 can be quickly adjusted. The support mechanism 5 further includes storage grooves 59, which are respectively provided at the front and rear sides of the base 43. The storage grooves 59 are installed in cooperation with the legs 56 to facilitate the storage of the legs 56. An auxiliary support mechanism with adjustable storage is provided to provide auxiliary support for the lifting platform, and a limit mechanism is also provided to prevent the workbench from falling due to hydraulic imbalance.

[0027] The working principle of a safe construction lifting platform provided by the utility model is as follows: when the lifting platform is working, first move the lifting platform to the working area, hold the handle tightly and pull it upward, move the connecting plate 53 upward, and the sliding column 52 also moves upward accordingly, and the tension spring 55 is forced to expand upward until the hexagonal column 58 leaves the inside of the hexagonal hole 57. At this time, the support leg 56 loses its restriction and can be deflected at will, and the support leg 56 is pushed outward from the inside of the storage groove 59 by 135 degrees. At this time, the hexagonal hole 57 is aligned with the hexagonal column 58 again, and the handle is released. The tension spring 55 is not forced to shrink downward, and the connecting plate 53 moves downward at the same time, and the hexagonal column 58 enters the inside of the hexagonal hole 57 again, restricting the support leg 56. At this time, due to the outward extension of the support leg 56, the supporting area of ​​the base 43 is increased, and the supporting effect is more stable. Then the single-chip microcomputer 3 controls the hydraulic pump station 49, and the hydraulic pump station 49 pumps the internal hydraulic oil into the inside of the hydraulic cylinder 48. The telescopic end of the hydraulic cylinder 48 extends to push the connecting shaft 47 to the left , the connecting shaft 47 slides the lower end of the outer bracket 45 to the left, because the front and rear ends of the horizontal shaft 46 are rotatably connected to the middle of the adjacent inner bracket 42 and the outer bracket 45, the upper end of the inner bracket 42 will also slide to the left, at this time, the vertical distance between the two brackets becomes larger, and the lateral distance becomes smaller, and the workbench 1 achieves a rising effect. When it rises to a suitable height, it is necessary to limit the workbench 1. At this time, the limiting end of the limiting column 7 is located downward at the bottom end of the workbench 1, and the limiting column 7 is pulled outward. The movable end slides outward, and the spring 8 is compressed by force until the limit end of the limit column 7 exceeds the front and rear sides of the workbench 1. The limit column 7 is deflected upward by 180 degrees to align the limit end of the limit column 7 with the corresponding limit hole 9. The limit column 7 is released, and the spring 8 expands without force, and moves the movable end of the limit column 7 inward. The limit end of the limit column 7 also enters the limit hole 9 synchronously, so that the pulley 1 can no longer move significantly, which can effectively prevent the workbench from falling due to hydraulic imbalance.

[0028] It is worth noting that the single chip microcomputer 3 disclosed in the above embodiment is a S7-200 single chip microcomputer, the hydraulic pump station 49 is a DSQ DBC DSSDBS hydraulic pump station, and the single chip microcomputer 3 controls the operation of the hydraulic pump station 49 using a method commonly used in the prior art.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A safe construction lifting platform, characterized by: It comprises a workbench (1), a lifting mechanism (4) and a supporting mechanism (5); A workbench (1) is provided with a guardrail (2) at its upper end; The lifting mechanism (4) comprises a slide groove (41), an inner bracket (42), a base (43), a slide groove (44), an outer bracket (45) and a transverse shaft (46). The slide groove (41) is respectively arranged at the front and rear ends of the workbench (1). The inner bracket (42) is slidably connected to the inside of the slide groove (41) through a pulley (41). The lower end of the inner bracket (42) is rotatably connected to the left end of the adjacent side wall of the base (43) through a pin (41). The outer bracket (45) is rotatably connected to the left end of the front and rear side walls of the workbench (1) through a pin (42). The slide groove (44) is respectively arranged at the front and rear ends of the base (43). The lower end of the outer bracket (45) is slidably connected to the inner wall of the slide groove (44) through a pulley (42). The front and rear ends of the transverse shaft (46) are rotatably connected to the middle parts of the adjacent inner bracket (42) and the outer bracket (45). Support mechanism (5): It is respectively arranged on the left and right sides of the base (43).

2. A safe construction lifting platform according to claim 1, characterized in that: It also comprises a single chip microcomputer (3), which is fixedly connected to the upper right side of the workbench (1), and the input end of the single chip microcomputer (3) is electrically connected to an external power supply.

3. A safe construction lifting platform according to claim 2, characterized in that: The lifting mechanism (4) further comprises a connecting shaft (47), a hydraulic cylinder (48) and a hydraulic pump station (49); the connecting shaft (47) is fixedly connected between the two outer brackets (45); the hydraulic pump station (49) is arranged on the left side inside the base (43); the input end of the hydraulic pump station (49) is electrically connected to the output end of the single-chip computer (3); the telescopic ends of the hydraulic cylinders (48) are both rotatably connected to the outer surface of the connecting shaft (47); the right sides of the fixed ends of the hydraulic cylinders (48) are both rotatably connected to the upper right end of the base (43); and the oil change ports of the two hydraulic cylinders (48) are connected to the oil port one of the hydraulic pump station (49) through an oil pipe one.

4. A safe construction lifting platform according to claim 1, characterized in that: The invention also comprises a second mounting hole (6), a limiting column (7), a spring (8) and a limiting hole (9), wherein the second mounting hole (6) is arranged inside the first pulley, the limiting column (7) is slidably connected inside the second mounting hole (6), a spring (8) is arranged between the middle of the movable end of the limiting column (7) and the inner wall of the second mounting hole (6), the spring (8) is sleeved on the outer surface of the lower end of the limiting column (7), the limiting holes (9) are respectively arranged on the front and rear sides of the workbench (1), and the outer surface of the limiting end of the limiting column (7) is plugged into the inner wall of the adjacent limiting hole (9).

5. A safe construction lifting platform according to claim 3, characterized in that: The support mechanism (5) comprises a sliding hole (51), a sliding column (52), a connecting plate (53), a mounting hole (54) and a tension spring (55); the sliding holes (51) are respectively opened at the left and right sides of the upper surface of the base (43); the sliding columns (52) are slidably connected to the inside of the sliding holes (51); the upper ends of the two sliding columns (52) on the same side are fixedly connected to the lower end of a connecting plate (53); a handle is provided at the middle of the upper end of the connecting plate (53); the mounting hole (54) is respectively opened at the middle of the left and right sides of the upper surface of the base (43); and a tension spring (55) is provided between the lower end of the connecting plate (53) and the inner wall of the mounting hole (54).

6. A safe construction lifting platform according to claim 5, characterized in that: The support mechanism (5) further comprises a support leg (56), a hexagonal hole (57) and a hexagonal column (58); the support leg (56) is rotatably connected to the four corners of the base (43) respectively; the hexagonal hole (57) is provided at the upper end of the rotation axis of the support leg (56); the hexagonal column (58) is fixedly connected to the bottom end of the connecting plate (53); and the outer surface of the hexagonal column (58) located at the lower end of the same connecting plate (53) is matched and installed with the vertically adjacent hexagonal hole (57).

7. A safe construction lifting platform according to claim 6, characterized in that: The support mechanism (5) further comprises a storage groove (59), wherein the storage groove (59) is respectively arranged at the front and rear sides of the base (43), and the storage groove (59) is installed in coordination with the supporting leg (56).

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