Portal frame

Abstract

The utility model discloses a portal frame, and relates to the technical field of portal frames. The device comprises two supporting seats which are symmetrically arranged, rolling wheels are rotatably arranged at the bottoms of the supporting seats, a first supporting rod is fixedly connected to the tops of the supporting seats, a second supporting rod is slidably connected to the interior of the first supporting rod, a top beam is fixedly connected to the top end of the second supporting rod, and a grabbing device is slidably connected to the bottom of the top beam; a control panel is fixedly connected to one side of the first supporting rod on one side, the control panel is electrically connected with the grabbing device, reinforcing mechanisms are arranged in the two ends of the supporting base, rotating rods in the supporting base are rotated, so that the rotating rods on the two sides are far away from each other, and a handle is rotated to drive a first threaded rod to rotate; the first threaded rod drives the reinforcing block to move downwards, the reinforcing block firmly abuts against the ground, shaking and unstable factors in the hoisting process can be reduced through firm abutting of the reinforcing block and the ground, smooth hoisting operation is guaranteed, and therefore a safe and reliable hoisting environment is provided.

Description

Technical Field

[0001] This application relates to the technical field of gantries, and particularly to a gantry. Background Art

[0002] A gantry is a gantry used for vertical transportation of materials and small components, consisting of two columns and a crossbeam. It is applicable to manufacturing molds, auto repair factories, mines, civil engineering construction sites, and occasions requiring lifting. Commonly, it is used as both a material transportation and a means for construction workers to go up and down during building construction, achieving lifting mechanization.

[0003] In an existing Chinese published patent (authorization announcement number: CN219771581U), a gantry structure with a height adjustment function is mentioned. By controlling the first drive motor, the lifting screw can be used to drive the lifting seat and the guiding lifting rod to lift, thereby realizing the rapid adjustment of the use height of the I-shaped support beam. This not only facilitates the rapid adjustment by the user but also ensures the transportation efficiency.

[0004] When hoisting a gantry, materials are lifted for transportation. However, due to the certain weight of the materials, as the height increases, the center of gravity position gradually moves upward, resulting in uneven distribution of the gravity borne by the gantry during hoisting, causing the overall center of gravity to change and possibly leading to instability of the gantry during hoisting. Summary of the Utility Model

[0005] The purpose of this application is to provide a gantry to solve the problem that as the height increases, the center of gravity position gradually moves upward, resulting in uneven distribution of the gravity borne by the gantry during hoisting.

[0006] To achieve the above purpose, this application specifically adopts the following technical solutions:

[0007] A gantry includes two symmetrically arranged support seats. The bottom of the support seat is rotatably provided with rollers. The top of the support seat is fixedly connected with a first support rod. A second support rod is slidably connected inside the first support rod. The top end of the second support rod is fixedly connected with a top beam. A grasping device is slidably connected to the bottom of the top beam. A control panel is fixedly connected to one side of one of the first support rods. The control panel is electrically connected to the grasping device. A reinforcement mechanism is arranged inside both ends of the support seat, and a lifting mechanism is arranged inside the first support rod.

[0008] By adopting the above technical solutions, first push the support base to move the top beam above the material. Then, start the control panel to make the grasping device perform the hoisting operation. When dealing with materials of different sizes, the height of the top beam can be adjusted through the lifting mechanism. The reinforcement mechanism forms a support for a large area at the bottom of the gantry, reducing the shaking and unstable factors during hoisting.

[0009] Further, the reinforcement mechanism includes rotating grooves opened at both ends inside the support base. Both sides inside the rotating grooves are provided with rotating rods, which are rotatably connected to the rotating grooves. The top of the rotating rod is threadedly connected with a first threaded rod. The bottom end of the first threaded rod penetrates through the rotating rod and is rotatably connected with a reinforcement block. The top of the threaded rod is fixedly connected with a handle.

[0010] By adopting the above technical solutions, by rotating the rotating rods inside the support base, the two rotating rods move away from each other. At this time, rotate the handle to drive the first threaded rod to rotate. Due to the threaded connection between the first threaded rod and the rotating rod, the first threaded rod moves downward after rotation. The downward movement of the first threaded rod drives the reinforcement block to move downward, making the reinforcement block firmly abut against the ground. The firm abutment between the reinforcement block and the ground can reduce the shaking and unstable factors during hoisting.

[0011] Further, a number of clamping blocks are fixedly connected to the bottom of the reinforcement block at equal intervals, and the bottom of the clamping block is conical.

[0012] By adopting the above technical solutions, the clamping blocks can increase the friction between the reinforcement block and the ground, making the stability higher during hoisting.

[0013] Further, an auxiliary rod is fixedly connected to the top of the reinforcement block. The top end of the auxiliary rod penetrates through the rotating rod, and the auxiliary rod is slidably connected to the rotating rod.

[0014] By adopting the above technical solutions, due to the sliding connection between the auxiliary rod and the rotating rod, the auxiliary rod provides an additional support point for the reinforcement block.

[0015] Further, the lifting mechanism includes a cavity opened inside one of the support rods. A second threaded rod is rotatably arranged inside the cavity. A threaded groove is opened inside the support rod two. The second threaded rod is threadedly connected to the threaded groove. A driving member is arranged on one side of the support rod one.

[0016] By adopting the above technical solutions, drive the second threaded rod to rotate through the driving member. Due to the threaded connection between the second threaded rod and the threaded groove, the support rod two moves. After the support rod two moves, it drives the top beam to move, thereby realizing the position adjustment of the top beam and adjusting the position of the grasping device according to different hoisting requirements.

[0017] Further, the driving member includes a mounting seat fixedly connected to one side of the first support rod. A rotating motor is fixedly connected to the top of the mounting seat. The output end of the rotating motor penetrates through the first support rod and is fixedly connected to a second gear. The output end of the rotating motor is rotatably connected to the first support rod. One side of the second gear is meshed with a first gear. The first gear is fixed to the second threaded rod. The bottom of the first gear is rotatably connected to a rotating seat. The bottom end of the rotating seat is fixedly connected to the inner bottom wall of the cavity.

[0018] By adopting the above technical solution, when the rotating motor is started through the control panel, the start of the rotating motor will drive the second gear to rotate. The second gear is meshed with the first gear. Therefore, when the second gear rotates, it will drive the first gear to rotate, causing the first gear to rotate on the top of the rotating seat. And the top of the first gear is fixedly connected to the second threaded rod, causing the second threaded rod to rotate.

[0019] Further, long holes are formed in the mutually approaching surfaces of the two first support rods. Sliders are fixedly connected to the mutually approaching surfaces of the two second support rods. The sliders are slidably connected to the long holes. The sliders are arranged in a T shape.

[0020] By adopting the above technical solution, through the sliding connection between the sliders and the long holes, the sliders and the long holes provide a guiding effect for the second support rods.

[0021] Further, reinforcing rods are fixedly connected to both sides of the first support rod. The ends of the reinforcing rods away from the first support rod are fixedly connected to the support base. The reinforcing rods are arranged in an inclined shape.

[0022] By adopting the above technical solution, the reinforcing rods can support the first support rod, providing additional support and stability to the first support rod.

[0023] In summary, the present application includes at least one of the following beneficial effects;

[0024] 1. In the present application, when the grasping device hoists materials, by rotating the rotating rods inside the support seat, the two rotating rods move away from each other. Then, by rotating the handle to drive the first threaded rod to rotate, the first threaded rod drives the reinforcing block to move downward, so that the reinforcing block firmly abuts against the ground. The firm abutment between the reinforcing block and the ground can reduce the shaking and unstable factors during hoisting, ensure the smooth progress of the hoisting operation, thereby providing a safe and reliable hoisting environment, and improving work efficiency and safety.

[0025] 2. In this application, when facing different hoisting requirements, the rotation motor is started through the control panel. The rotation motor drives the second gear to rotate, and the second gear drives the first gear to rotate. The rotation of the first gear causes the second threaded rod to rotate. Since the second threaded rod is threadedly connected to the thread groove, the second support rod moves, and after the second support rod moves, it drives the top beam to move, thereby adjusting the position of the grasping device according to different hoisting requirements, providing greater flexibility and adaptability, improving the efficiency and accuracy of hoisting operations, and meeting the requirements of various hoisting demands. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the first three-dimensional structure schematic diagram of the gantry in this application;

[0027] Figure 2 is the second three-dimensional structure schematic diagram of the gantry in this application;

[0028] Figure 3 is this application Figure 2 the enlarged structure schematic diagram at position A;

[0029] Figure 4 is the internal perspective structure schematic diagram of the first support rod and the second support rod in this application.

[0030] Description of the reference numerals:

[0031] 1. Support base; 2. First support rod; 3. Reinforcing rod; 4. Second support rod; 5. Top beam; 6. Grasping device; 7. Control panel; 8. Rotation groove; 9. Rotation rod; 10. First threaded rod; 11. Reinforcing block; 12. Handle; 13. Clamping block; 14. Auxiliary rod; 15. Cavity; 16. Mounting seat; 17. Rotation motor; 18. Rotating seat; 19. First gear; 20. Second threaded rod; 21. Thread groove; 22. Long strip hole; 23. Slide block; 24. Second gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following is a further detailed description of this application in conjunction with the attached Figures 1-4 drawings.

[0033] The embodiment of this application discloses a gantry.

[0034] Referring to Figure 1 and Figure 2, A gantry, comprising two symmetrically arranged support seats 1. The bottom of the support seat 1 is rotatably provided with rollers. The top of the support seat 1 is fixedly connected with a first support rod 2. A second support rod 4 is slidably connected inside the first support rod 2. The top end of the second support rod 4 is fixedly connected with a top beam 5. A grasping device 6 is slidably connected to the bottom of the top beam 5. The grasping device 6 is a prior art and can be of the type of a winch. On one side of one of the first support rods 2, a control panel 7 is fixedly connected. The control panel 7 is electrically connected to the grasping device 6. Reinforcement mechanisms are arranged inside both ends of the support seat 1, and a lifting mechanism is arranged inside the first support rod 2.

[0035] When hoisting operations are required, first push the support seat 1 so that the top beam 5 moves above the material. Then, start the control panel 7 to make the grasping device 6 perform hoisting operations on the material. When dealing with materials of different sizes, the height of the top beam 5 can be adjusted through the lifting mechanism. The operator can adjust the height of the top beam 5 according to the size and weight of the material to meet different hoisting requirements. When the grasping device 6 is hoisting, through the reinforcement mechanism, a larger area of support is formed at the bottom of the gantry, reducing shaking and unstable factors during hoisting and improving the stability of the gantry during operation.

[0036] Refer to Figure 2 and Figure 3 , The reinforcement mechanism includes rotating grooves 8 opened at both ends inside the support seat 1. On both sides inside the rotating grooves 8, rotating rods 9 are provided. The rotating rods 9 are rotatably connected to the rotating grooves 8. A first threaded rod 10 is threadedly connected to the top of the rotating rod 9. The bottom end of the first threaded rod 10 penetrates through the rotating rod 9 and is rotatably connected to a reinforcement block 11. A handle 12 is fixedly connected to the top of the threaded rod.

[0037] Among them, a number of clamping blocks 13 are fixedly connected to the bottom of the reinforcement block 11 at equal intervals. The bottom of the clamping block 13 is conical.

[0038] In addition, an auxiliary rod 14 is fixedly connected to the top of the reinforcement block 11. The top end of the auxiliary rod 14 penetrates through the rotating rod 9, and the auxiliary rod 14 is slidably connected to the rotating rod 9.

[0039] When the grasping device 6 hoists materials, by rotating the rotating rod 9 inside the supporting seat 1, the two rotating rods 9 move away from each other. At this time, the first threaded rod 10 is rotated by rotating the handle 12. Since the first threaded rod 10 is in threaded connection with the rotating rod 9, the first threaded rod 10 moves downward after rotation. The downward movement of the first threaded rod 10 drives the reinforcement block 11 to move downward, so that the reinforcement block 11 firmly abuts against the ground. The firm abutment of the reinforcement block 11 with the ground can reduce the shaking and unstable factors during hoisting, ensure the smooth progress of the hoisting operation, thus providing a safe and reliable hoisting environment, improving work efficiency and safety. When the reinforcement block 11 firmly abuts against the ground, a number of clamping blocks 13 are fixed to the bottom of the reinforcement block 13. The clamping blocks 13 can increase the friction between the reinforcement block 11 and the ground, making the stability higher during hoisting. When the reinforcement block 11 moves, the auxiliary rod 14 is slidably connected to the rotating rod 9, and the auxiliary rod 14 provides an additional support point for the reinforcement block 11, so that the reinforcement block 11 maintains stability during movement.

[0040] Referring to Figure 1 , Figure 2 and Figure 4 , the lifting mechanism includes a cavity 15 opened inside one side of the first support rod 2. A second threaded rod 20 is rotatably arranged inside the cavity 15. A threaded groove 21 is opened inside the second support rod 4. The second threaded rod 20 is in threaded connection with the threaded groove 21. A driving member is arranged on one side of the first support rod 2.

[0041] Among them, the driving member includes a mounting seat 16 fixedly connected to one side of the first support rod 2. A rotary motor 17 is fixedly connected to the top of the mounting seat 16. The output end of the rotary motor 17 penetrates through the first support rod 2 and is fixedly connected to a second gear 24. The output end of the rotary motor 17 is rotatably connected to the first support rod 2. A first gear 19 is meshed with one side of the second gear 24. The first gear 19 is fixed to the second threaded rod 20. The bottom of the first gear 19 is rotatably connected to a rotating seat 18. The bottom end of the rotating seat 18 is fixedly connected to the inner bottom wall of the cavity 15.

[0042] In addition, long holes 22 are opened on the mutually approaching surfaces of the two first support rods 2. Sliders 23 are fixedly connected to the mutually approaching surfaces of the two second support rods 4. The sliders 23 are slidably connected to the long holes 22. The sliders 23 are arranged in a T shape.

[0043] When facing different lifting requirements, the operator can start the rotating motor 17 through the control panel 7. The start of the rotating motor 17 will drive the gear 2 24 to rotate. The gear 24 is meshed with the gear 1 19. Therefore, when the gear 24 rotates, it will drive the gear 19 to rotate, so that the gear 19 rotates on the top of the rotating seat 18, and the top of the gear 19 is fixedly connected to the threaded rod 20, so that the threaded rod 20 rotates. The threaded connection between the threaded rod 20 and the thread groove 21 is threaded, so that the support rod 24 moves. After the support rod 24 moves, it drives the top beam 5 to move, thereby realizing the position adjustment of the top beam 5. The position of the grabbing device 6 can be adjusted according to different lifting requirements, providing greater flexibility and adaptability, improving the efficiency and accuracy of the lifting operation, and meeting the needs of various lifting requirements. When the support rod 24 moves inside the support rod 2, it is slidably connected with the long hole 22 through the slider 23. The slider 23 and the long hole 22 provide a guiding effect for the support rod 24, so that the support rod 24 maintains the correct trajectory when moving.

[0044] Reference Figure 1 , Figure 2 and Figure 4 , reinforcement rods 3 are fixedly connected to both sides of the support rod 2, and one end of the reinforcement rod 3 away from the support rod 2 is fixedly connected to the support seat 1, and the reinforcement rod 3 is arranged in an inclined shape.

[0045] The reinforcing rod 3 can support the support rod 2, provide additional support and stability to the support rod 2, and reduce shaking during the lifting process.

[0046] Working principle: When lifting operation is required, first push the support seat 1 to move the top beam 5 to the top of the material, then start the control panel 7 to enable the grabbing device 6 to lift the material, and rotate the rotating rod 9 inside the support seat 1 to make the rotating rods 9 on both sides move away from each other. At this time, the threaded rod 10 is driven to rotate by rotating the handle 12, and the threaded rod 10 is threadedly connected with the rotating rod 9, so that the threaded rod 10 moves downward after rotation, and the downward movement of the threaded rod 10 drives the reinforcement block 11 to move downward, so that the reinforcement block 11 is firmly in contact with the ground. The firm contact between the reinforcement block 11 and the ground can reduce shaking and instability factors during lifting.

[0047] Start the rotary motor 17 through the control panel 7. The start of the rotary motor 17 drives the second gear 24 to rotate. The second gear 24 is meshed and connected with the first gear 19. Therefore, when the second gear 24 rotates, it drives the first gear 19 to rotate, causing the first gear 19 to rotate on the top of the rotating seat 18. The top of the first gear 19 is fixedly connected to the second threaded rod 20, causing the second threaded rod 20 to rotate. Through the threaded connection between the second threaded rod 20 and the threaded groove 21, the second support rod 4 moves, and after the second support rod 4 moves, it drives the top beam 5 to move, thereby realizing the position adjustment of the top beam 5, and the position of the grasping device 6 can be adjusted according to different lifting requirements.

Claims

1. A gantry, comprising two symmetrically arranged support seats (1), wherein the bottom of each support seat (1) is rotatably provided with a roller, characterized in that: The top of the support seat (1) is fixedly connected to a support rod 1 (2), the interior of the support rod 1 (2) is slidably connected to a support rod 2 (4), the top of the support rod 2 (4) is fixedly connected to a top beam (5), the bottom of the top beam (5) is slidably connected to a gripping device (6), one side of the support rod 1 (2) is fixedly connected to a control panel (7), the control panel (7) is electrically connected to the gripping device (6), reinforcement mechanisms are arranged inside the two ends of the support seat (1), and a lifting mechanism is arranged inside the support rod 1 (2).

2. A gantry according to claim 1, characterized in that: The reinforcing mechanism comprises a rotating groove (8) formed at both ends of the interior of the support seat (1), rotating rods (9) are arranged on both sides of the interior of the rotating groove (8), the rotating rod (9) is rotatably connected to the rotating groove (8), the top of the rotating rod (9) is threadedly connected to a threaded rod 1 (10), the bottom end of the threaded rod 1 (10) passes through the rotating rod (9) and is rotatably connected to a reinforcing block (11), and the top of the threaded rod is fixedly connected to a handle (12).

3. A gantry according to claim 2, characterized in that: A plurality of clamping blocks (13) are fixedly connected to the bottom of the reinforcement block (11) at equal intervals, and the bottom of the clamping block (13) is configured to be conical.

4. A gantry according to claim 2, characterized in that: An auxiliary rod (14) is fixedly connected to the top of the reinforcement block (11); the top end of the auxiliary rod (14) passes through the rotating rod (9); and the auxiliary rod (14) is slidably connected to the rotating rod (9).

5. A gantry according to claim 1, characterized in that: The lifting mechanism comprises a cavity (15) formed inside a support rod (2) on one side, a threaded rod (20) is rotatably arranged inside the cavity (15), a threaded groove (21) is formed inside the support rod (4), the threaded rod (20) is threadedly connected to the threaded groove (21), and a driving member is arranged on one side of the support rod (2).

6. A gantry according to claim 5, characterized in that: The driving member comprises a mounting seat (16) fixedly connected to one side of the support rod one (2); a rotating motor (17) is fixedly connected to the top of the mounting seat (16); an output end of the rotating motor (17) passes through the support rod one (2) and is fixedly connected to a gear two (24); the output end of the rotating motor (17) is rotationally connected to the support rod one (2); one side of the gear two (24) is meshingly connected to a gear one (19); the gear one (19) is fixed to the threaded rod two (20); the bottom of the gear one (19) is rotationally connected to a rotating seat (18); the bottom end of the rotating seat (18) is fixedly connected to the inner bottom wall of the cavity (15).

7. A gantry according to claim 1, characterized in that: A long hole (22) is provided on one side of the support rods (2) on both sides that are close to each other, and a sliding block (23) is fixedly connected to one side of the support rods (4) on both sides that are close to each other. The sliding block (23) is slidably connected to the long hole (22), and the sliding block (23) is arranged in a T shape.

8. A gantry according to claim 1, characterized in that: Reinforcement rods (3) are fixedly connected to both sides of the support rod one (2); one end of the reinforcement rod (3) away from the support rod one (2) is fixedly connected to the support seat (1); and the reinforcement rod (3) is arranged in an inclined shape.

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