Lifting equipment for construction

Abstract

The utility model relates to the technical field of lifting machinery, in particular to lifting equipment for construction. The equipment comprises a supporting platform, a lifting arm is arranged above the supporting platform, the top of the lifting arm is connected with a working platform, the left side and the right side of the working platform are each rotationally connected with a supporting plate, the middle positions of the front end and the rear end of the working platform are each vertically provided with a supporting rod, and the front side and the rear side of the working platform are each vertically provided with two guardrails capable of stretching leftwards and rightwards. The two guardrails are located on the left side and the right side of the supporting rod respectively, the ends, close to the supporting rod, of the guardrails are connected to the supporting rod, the other ends of the guardrails are connected with limiting rods, the bottoms of the limiting rods can be clamped with the top of the working platform and the ends, away from the working platform, of the supporting plates, and the upper ends of the limiting rods can be clamped with the ends, away from the working platform, of the supporting plates. The equipment has the effects of facilitating transportation and improving the safety, achieves convenience and labor saving during material transportation, and guarantees the safety of workers during high-altitude operation.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting machinery, in particular to a lifting device for construction. Background Art

[0002] Construction refers to production activities during the implementation phase of a project, during which workers need to transport materials to different floors. Currently, lifting equipment is commonly used in construction to carry workers or materials to heights. Lifting equipment is of great help in high-altitude transportation of heavy objects and high-altitude operations of personnel. Because it is used for high-altitude operations, the safety of lifting equipment has received close attention.

[0003] With existing lifting equipment, workers transport materials inside high-altitude buildings and on the platforms of the lifting devices. They often use wooden boards to build temporary passages between the platforms and the buildings, and there are no guardrails on both sides of the passages, which poses a huge safety hazard.

[0004] Therefore, this case designs a construction lifting equipment that is easy to transport and improves safety, ensuring convenient material transportation and thus saving labor, and ensuring the safety of workers during operation. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a construction lifting device which is convenient for transportation and has improved safety, thereby ensuring convenient and labor-saving material transportation and protecting the safety of workers during operation.

[0006] In order to solve the above technical problems, the construction lifting equipment of the present invention includes a support platform, and its structural feature is that a lifting arm is arranged above the support platform, the top of the lifting arm is connected to a working platform, and the left and right sides of the working platform are respectively rotatably connected to a support plate, and a support rod is vertically arranged in the middle position of the front and rear ends of the working platform, and two guardrails that can be extended and retracted left and right are vertically arranged on the front and rear sides of the working platform. The two guardrails are respectively located on the left and right sides of the support rod, and one end of the guardrail close to the support rod is connected to the support rod, and the other end is connected to the limit rod. The bottom of the limit rod can be engaged with the top of the working platform, and the bottom of the limit rod can also be engaged with the end of the support plate away from the working platform. The upper end of the limit rod can be engaged with the end of the support plate away from the working platform.

[0007] With the above structure, the lifting function is achieved through the lifting arm. The lifting arm is a conventional hydraulic lifting arm. The two ends of the lifting arm shoe are respectively connected to the working platform and the support platform. The working platform is used to carry workers and materials. The guardrail provides protection and improves safety. The support rod is used to limit one side of the guardrail to improve overall stability and safety. Different card fits between the working platform, the limit rod and the support plate realize different functions, thereby improving the safety of the lifting equipment.

[0008] Preferably, a first sliding groove is vertically formed at the lower end of the limit rod near the guardrail, and the lower side of the guardrail near the limit rod is slidably connected to the first sliding groove on the limit rod. Two second sliding grooves are vertically formed on the left and right sides of the upper end of the support rod near the guardrail, and the upper sides of the left and right guardrails near the support rod are slidably connected to the left and right second sliding grooves respectively. The guardrail is stretched by pulling the limit rod, thereby realizing the telescopic function.

[0009] Preferably, when the end of the support plate away from the work platform engages with the upper end of the limit rod, the support plate is in a vertical position and located above the work platform, and the bottom of the limit rod engages with the top of the work platform. When the support rod rotates outward around the work platform, the end of the support plate away from the work platform can engage with the bottom of the limit rod. When the support plate is in a vertical position, the support plate acts as a guardrail to ensure the safety of workers during the lifting process of the lifting equipment. When the end of the support plate away from the work platform engages with the bottom of the limit rod, the support plate acts as a transportation channel, providing convenience for transporting materials and saving physical effort. The guardrails on both sides provide safety during transportation.

[0010] Preferably, the bottom of the limiting rod can be engaged with the inner wall of the support plate away from the working platform, and the outer wall of the upper end of the limiting rod can be engaged with the inner wall of the support plate away from the working platform.

[0011] Preferably, a lower limit block is provided at the bottom of the limit rod, and an upper limit block with the same structure as the lower limit block is provided on the outer wall of the upper end; first slots corresponding to and adapted to the lower limit block are provided at the four corners of the upper surface of the working platform, and second slots corresponding to and adapted to the upper limit block are provided at the front and rear ends of the inner wall of the support plate away from one end of the working platform. Through the cooperation of the lower limit block and the first slot, the guardrail is firmly fixed on the front and rear sides of the working platform to provide safety protection, and through the cooperation of the upper limit block and the second slot, the support plate is firmly fixed on the left and right sides of the working platform to provide safety protection; through the cooperation of the lower limit block and the second slot, the support plate is in the transport channel state at this time, and the guardrail provides safety protection for both sides of the transport channel; the above-mentioned cooperation method improves the safety of the lifting device.

[0012] Preferably, a hydraulic mechanism for driving the lifting arm to move up and down is installed on the top of the support platform.

[0013] Preferably, the support rod is provided with a lifting switch electrically connected to the hydraulic mechanism. The lifting switch controls the hydraulic mechanism to control the lifting arm to complete the lifting work, which is convenient for operation.

[0014] Preferably, a universal wheel is fixedly mounted on the bottom of the support platform and a brake pad is provided on the universal wheel. The universal wheel can move flexibly, and the brake pad restricts the universal wheel.

[0015] In summary, the utility model has the effect of facilitating transportation and improving safety, realizing convenience and labor-saving in material transportation and ensuring the safety of workers during high-altitude operations, thereby saving physical strength and improving safety for workers during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

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

[0018] Figure 2 This is a schematic diagram of the structure of the transport channel during transportation in the present utility model;

[0019] Figure 3 for Figure 1 Top view of .

[0020] In the figure: 1. Support platform, 2. Lifting arm, 3. Working platform, 4. Support plate, 5. Support rod, 6. Guardrail, 7. Limit rod, 8. Lower limit block, 9. Upper limit block, 10. First slot, 11. Second slot, 14. Hydraulic mechanism, 15. Lifting switch, 16. Universal wheel, 17. Brake pad, 18. First slide, 19. Second slide. DETAILED DESCRIPTION

[0021] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] Refer to the attached Figure 1-3 The lifting device for construction of the present invention comprises a supporting platform 1, a lifting arm 2 is arranged above the supporting platform 1, and the top of the lifting arm 2 is connected to a working platform 3, and the lifting arm 2 drives the working platform 3 to lift and lower the working platform 3. The left and right sides of the working platform 3 are respectively connected to a supporting plate 4. A supporting rod 5 is vertically arranged in the middle position of the front and rear ends of the working platform 3. Two guardrails 6 that can be retracted left and right are vertically arranged on the front and rear sides of the working platform 3. The two guardrails 6 are respectively located on the left and right sides of the supporting rod 5. One end of the guardrail 6 close to the supporting rod 5 is connected to the supporting rod 5, and the other end is connected to the limiting rod 7. The right end of the guardrail 6 on the left side of the supporting rod 5 is connected to the left end of the supporting rod 5, and the left end is connected to the limiting rod 7 on the left end. The left end of the guardrail 6 on the right side of the supporting rod 5 is connected to the right end of the supporting rod 5, and the right end is connected to the limiting rod 7 on the right end. The bottom of the limiting rod 7 can be engaged with the top of the working platform 3, and the bottom of the limiting rod 7 can also be engaged with the end of the supporting plate 4 away from the working platform 3. The upper end of the limiting rod 7 can be engaged with the end of the supporting plate 4 away from the working platform 3.

[0023] Refer to the attached Figure 1-3A first slide groove 18 is vertically opened at the lower end of the side of the limit rod 7 close to the guardrail 6, and the lower side of the end of the guardrail 6 close to the limit rod 7 is slidably connected to the first slide groove 18 on the limit rod 7. Two second slide grooves 19 are vertically opened on the left and right sides of the upper end of the side of the support rod 5 close to the guardrail 6. The upper sides of the ends of the left and right guardrails 6 close to the support rod 5 are respectively slidably connected to the left and right second slide grooves 19, and the guardrail 6 is driven to extend and retract by pulling the limit rod 7.

[0024] Refer to the attached Figure 1-3 When the end of the support plate 4 away from the working platform 3 is engaged with the upper end of the limit rod 7, the support plate 4 is in a vertical state and is located above the working platform 3, and the bottom of the limit rod 7 is engaged with the top of the working platform 3. At this time, the support plate 4 acts as a guardrail; when the support rod 5 is rotated outward around the working platform 3 to open, the bottom of the limit rod 7 is engaged with the top of the working platform 3 or the end of the support plate 4 away from the working platform 3. At this time, the support plate 4 acts as a transportation channel.

[0025] Refer to the attached Figure 1 and 2 The bottom of the limiting rod 7 can be engaged with the inner wall of the support plate 4 away from the working platform 3, and the outer wall of the upper end of the limiting rod 7 can be engaged with the inner wall of the support plate 4 away from the working platform 3.

[0026] Refer to the attached Figure 2 A lower limit block 8 is provided at the bottom of the limit rod 7, and an upper limit block 9 with the same structure as the lower limit block 8 is provided on the outer wall of the upper end; first card grooves 10 corresponding to and adapted to the lower limit block 8 are provided at the four corners of the upper surface of the working platform 3, and second card grooves 11 corresponding to and adapted to both the upper limit block 9 and the lower limit block 8 are provided at the front and rear ends of the inner wall of the support plate 4 away from the end of the working platform 3.

[0027] Refer to the attached Figure 1 A hydraulic mechanism 14 is installed on the top of the supporting platform 1 to drive the lifting arm 2 to rise and fall. This hydraulic mechanism 14 is a conventional electric hydraulic mechanism, and the lifting arm 2 is also a hydraulic lifting arm commonly used in this field. Its specific structure and working principle are not repeated here.

[0028] Refer to the attached Figure 2 and 3 The support rod 5 is provided with a lifting switch 15 electrically connected to the hydraulic mechanism 14. The lifting switch 15 controls the hydraulic mechanism 14 to control the lifting arm 2 to complete the lifting work, which is convenient for operation. The control switch 15 is an existing PLC controller.

[0029] Refer to the attached Figure 1 and 2 A universal wheel 16 is fixedly mounted on the bottom of the support platform 1 and a brake pad 17 is provided on the universal wheel 16. The universal wheel 16 can move flexibly and the brake pad 17 can limit the universal wheel.

[0030] In the present invention, the working steps of the device are as follows: the lifting device is moved to the working position by the universal wheel 16, the universal wheel 16 is restricted by the brake pad 17 to stabilize the lifting device, the upper limit block 9 and the second slot 11 are separated, the support plate 4 is rotated downward to one side to support the ground and transform it into a transportation channel, the staff and materials are moved to the working platform 3 through the support plate 4, the support plate 4 is rotated upward to engage the upper limit block 9 with the second slot 11, and the support plate 4 is transformed into a guardrail, the lifting switch 15 is operated to control the hydraulic mechanism 14 To work, the hydraulic mechanism 14 drives the lifting arm 2 to move upward. When the working platform 3 reaches the required height, the lifting switch 15 is operated to pause the upward movement, and the engaged upper limit block 9 and the second slot 11 are separated, so that one side of the support plate 4 is placed on the edge of the building to form a transportation channel, and the engaged lower limit block 8 and the first slot 10 are separated, and the limit rod 7 is pulled to stretch the guardrail 6, so that the lower limit block 8 and the second slot 11 are engaged. At this time, safety guardrails are formed on both sides of the transportation channel, and the material on the working platform 5 or the material in the building is transported and transferred.

[0031] In summary, the present invention is not limited to the above-described specific embodiments. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be determined by the claims of the present invention.

Claims

1. A construction lifting device, comprising a support platform (1), characterized in that A lifting arm (2) is arranged above the support platform (1), the top of the lifting arm (2) is connected to a working platform (3), the left and right sides of the working platform (3) are rotatably connected to a supporting plate (4), a supporting rod (5) is vertically arranged at the middle position of the front and rear ends of the working platform (3), and two guardrails (6) that can be telescopically arranged on the front and rear sides of the working platform (3) are vertically arranged, and the two guardrails (6) are respectively located on the left and right sides of the support rod (5), one end of the guardrail (6) close to the support rod (5) is connected to the support rod (5), and the other end is connected to a limiting rod (7), the bottom of the limiting rod (7) can be engaged with the top of the working platform (3), the bottom of the limiting rod (7) can also be engaged with the end of the supporting plate (4) away from the working platform (3), and the upper end of the limiting rod (7) can be engaged with the end of the supporting plate (4) away from the working platform (3).

2. The construction lifting equipment according to claim 1 is characterized in that A first slide groove (18) is vertically formed at the lower end of the limiting rod (7) near the guardrail (6); the lower side of one end of the guardrail (6) near the limiting rod (7) is slidably connected to the first slide groove (18) on the limiting rod (7); two second slide grooves (19) are vertically formed on the left and right sides of the upper end of the support rod (5) near the guardrail (6); the upper sides of one end of the left and right guardrails (6) near the support rod (5) are slidably connected to the left and right second slide grooves (19).

3. The construction lifting equipment according to claim 1, characterized in that When the end of the support plate (4) away from the working platform (3) is engaged with the upper end of the limit rod (7), the support plate (4) is in a vertical state and is located above the working platform (3), and the bottom of the limit rod (7) is engaged with the top of the working platform (3); when the support rod (5) rotates outward around the working platform (3), the end of the support plate (4) away from the working platform (3) can be engaged with the bottom of the limit rod (7).

4. The construction lifting equipment according to claim 3 is characterized in that The bottom of the limiting rod (7) can be engaged with the inner wall of the end of the support plate (4) away from the working platform (3), and the outer wall of the upper end of the limiting rod (7) can be engaged with the inner wall of the end of the support plate (4) away from the working platform (3).

5. The construction lifting equipment according to claim 4, characterized in that A lower limit block (8) is arranged at the bottom of the limit rod (7), and an upper limit block (9) having the same structure as the lower limit block (8) is arranged on the outer wall of the upper end; first slots (10) corresponding to and matching the lower limit block (8) are arranged at the four corners of the upper surface of the working platform (3); and second slots (11) corresponding to and matching the upper limit block (9) are arranged at the front and rear ends of the inner wall of the support plate (4) away from the end of the working platform (3).

6. The construction lifting equipment according to claim 1, characterized in that A hydraulic mechanism (14) for driving the lifting arm (2) to move up and down is installed on the top of the support platform (1).

7. The construction lifting equipment according to claim 6, characterized in that The support rod (5) is provided with a lifting switch (15) electrically connected to the hydraulic mechanism.

8. The construction lifting equipment according to claim 1, characterized in that A universal wheel (16) is fixedly mounted on the bottom of the support platform (1), and a brake pad (17) is provided on the universal wheel (16).

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