Elevator guardrail welding positioning frame

Abstract

The utility model discloses a welding positioning frame for an elevator guardrail, which is applied to the technical field of elevator guardrail processing and can be used for connecting two elevator guardrails in a butt joint manner to form a right angle and rotating in a second positioning plate through rollers. The elevator guardrail rod can slide back and forth between the first positioning plate and the second positioning plate to enable the right-angle ends to be in butt joint for welding, so that the effect of conveniently positioning and welding different elevator guardrails is achieved, the working intensity is reduced, and the welding precision is improved; a first supporting rod and a second supporting rod are driven by a second threaded sleeve to rotate and unfold, so that the welding platform on the top can be lifted and supported, and meanwhile, a second threaded rod is reversely rotated to enable the second threaded sleeve to drive the first supporting rod and the second supporting rod to rotate and fold to lower the welding platform. And the function of adjusting the appropriate welding height according to the welding requirements of personnel is achieved, and practicability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevator guardrail processing, and particularly relates to an elevator guardrail welding positioning frame. Background Art

[0002] With the development of economy, elevators are used in more and more occasions. The national standard of elevators proposes that guardrails should be used in some occasions to prevent the danger of people falling.

[0003] At present, a Chinese utility model with publication number: CN216706461U discloses an automatic positioning aid for guardrail welding, including a base, the upper surface of the base is symmetrically provided with two groups of sliding grooves, the surface axes of the two groups of sliding grooves are symmetrically provided with two groups of sliding components, the center of the base is fixedly installed with a fixed shaft, the outer surface of the fixed shaft is provided with a gear, two groups of support rods are provided above the two groups of sliding components, and the ends of the four groups of support rods are provided with fixed components. This utility model, by providing a sliding component, achieves the purpose of solving the problem that the support device used for guardrail welding lacks an automatic positioning aid, and this utility model, by providing a fixed component, achieves the purpose of solving the problem that the support device cannot adapt to guardrails and guardrails of different sizes.

[0004] The existing elevator guardrails are inconsistent in size and model, so they need to be manually welded, which causes great work fatigue and visual errors to the personnel, making it impossible to guarantee the accuracy of each component on the welded elevator guardrail. The welding accuracy of the elevator guardrail directly affects the normal and safe operation of the construction elevator, and the deviation in welding positioning accuracy poses a great safety hazard to the operation of the elevator. Utility Model Content

[0005] The utility model aims to provide an elevator guardrail welding positioning frame, which has the advantages of being convenient for positioning welding of different elevator guardrails and adjusting a suitable welding height according to needs.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: an elevator guardrail welding positioning frame, including a welding platform, the four sides of the top of the welding platform are fixedly connected to a first positioning plate, the four sides of the inside of the welding platform close to the first positioning plate are symmetrically rotatably connected to a first screw, the surface of the first screw is threadedly sleeved with a first threaded sleeve, the top of the first threaded sleeve is fixedly connected to a second positioning plate used in conjunction with the first positioning plate, and the second positioning plate is rotatably connected to a roller on one side close to the first positioning plate.

[0007] By adopting the above technical scheme, the first positioning plate and the second positioning plate are brought close to each other to clamp and fix elevator guardrails of different sizes, so that the two elevator guardrails can be connected at a right angle, and the roller is rotated inside the second positioning plate so that the elevator guardrail can slide back and forth between the first positioning plate and the second positioning plate to connect the right-angle ends for welding, thereby achieving the effect of facilitating the positioning welding of different elevator guardrails, thereby reducing work intensity and improving welding accuracy; the first support rod and the second support rod are driven by the second threaded sleeve to rotate and open, so that the top welding platform can be lifted and supported, and at the same time, the second screw rod is rotated in the opposite direction so that the second threaded sleeve can drive the first support rod and the second support rod to rotate and fold to lower the welding platform, thereby achieving the function of adjusting the appropriate welding height according to the welding needs of personnel and improving practicality.

[0008] The utility model is further configured as follows: a base is provided at the bottom of the welding platform, a first support rod and a second support rod are alternately provided between the welding platform and the base, two ends of the first support rod are respectively slidably connected to the welding platform and rotatably connected to the base, a second screw rod is rotatably connected to one side inside the base, a second threaded sleeve is threadedly sleeved on the surface of the second screw rod, one end of the second support rod is rotatably connected to the welding platform, and the other end is rotatably connected to the top of the second threaded sleeve.

[0009] By adopting the above technical solution, the welding platform is raised and lowered by supporting the first support rod and the second support rod, so that a suitable welding height can be adjusted according to the welding needs of personnel, thereby improving practicality.

[0010] The utility model is further configured as follows: one end of the first screw and the second screw, respectively away from the welding platform and the inside of the base, are fixedly connected with a rotating handle.

[0011] The above technical solution makes it easy for a person to drive the first screw and the second screw to rotate externally.

[0012] The utility model is further configured that: a non-slip sleeve is adhered to the surface of the roller.

[0013] By adopting the above technical solution, the surface friction is improved, thereby preventing the elevator guardrail from accidentally sliding.

[0014] The utility model is further configured as follows: the bottom of the welding platform and the top of the base are both fixedly connected with a limiting slide rail which is slidably connected with the first support rod and the second support rod.

[0015] By adopting the above technical solution, the sliding of the first support rod and the second support rod is limited, thereby improving the stability of the welding platform when it is raised or lowered.

[0016] The utility model is further configured as follows: universal wheels are installed at four corners of the bottom of the welding platform, and a locker is installed on one side of the universal wheel.

[0017] The above technical solution is adopted to facilitate the position movement of the positioning frame, and the universal wheel can be fixed in a limited position by the lock.

[0018] The utility model is further configured as follows: collecting cups are fixedly installed at the four corners of the welding platform.

[0019] By adopting the above technical solution, the welding slag at the welding point can be caught and stored, thereby preventing the welding slag from falling and facilitating cleaning.

[0020] The utility model is further configured as follows: an anti-slip pattern is provided on a side of the first positioning plate close to the second positioning plate.

[0021] By adopting the above technical solution, the friction force is improved and the stability of clamping the elevator guardrail is increased.

[0022] In summary, the utility model has the following beneficial effects:

[0023] 1. The first positioning plate and the second positioning plate are brought close to each other to clamp and fix elevator guardrails of different sizes, so that the two elevator guardrails can be butted at right angles, and the roller is rotated inside the second positioning plate, so that the elevator guardrail can slide back and forth between the first positioning plate and the second positioning plate to butt the right-angle ends for welding, so as to facilitate the positioning welding of different elevator guardrails, thereby reducing the work intensity and improving the welding accuracy;

[0024] 2. The first support rod and the second support rod are driven by the second threaded sleeve to rotate and open, so that the top welding platform can be lifted and supported. At the same time, the second screw rod is rotated in the opposite direction so that the second threaded sleeve can drive the first support rod and the second support rod to rotate and fold to lower the welding platform, thereby achieving the function of adjusting the appropriate welding height according to the welding needs of personnel and improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0027] Figure 3 This utility model Figure 2 Enlarged view of point A in .

[0028] Figure numerals: 1. welding platform; 2. first positioning plate; 3. second positioning plate; 4. slide groove; 5. roller; 6. first screw; 7. first threaded sleeve; 8. base; 9. first support rod; 10. second support rod; 11. second screw; 12. second threaded sleeve; 13. turning handle; 14. anti-slip sleeve; 15. limiting slide rail; 16. universal wheel; 17. lock; 18. collecting cup. DETAILED DESCRIPTION

[0029] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0030] Embodiment 1:

[0031] refer to Figure 1 , Figure 2 , Figure 3 , an elevator guardrail welding positioning frame, comprising a welding platform 1, the four sides of the top of the welding platform 1 are fixedly connected with a first positioning plate 2, the four sides of the inside of the welding platform 1 near the first positioning plate 2 are symmetrically rotatably connected with a first screw 6, the surface of the first screw 6 is threadedly sleeved with a first threaded sleeve 7, the top of the first threaded sleeve 7 is fixedly connected with a second positioning plate 3 used in conjunction with the first positioning plate 2, and the second positioning plate 3 is rotatably connected with a roller 5 on one side close to the first positioning plate 2; the first positioning plate 2 and the second positioning plate 3 are approached to each other to clamp and fix elevator guardrails of different sizes, so that the two elevator guardrails can be butt-jointed at a right angle, and the roller 5 is rotated inside the second positioning plate 3, so that the elevator guardrail can slide back and forth between the first positioning plate 2 and the second positioning plate 3 to butt the right-angle ends for welding, thereby achieving the effect of facilitating positioning welding of different elevator guardrails, thereby reducing work intensity and improving welding accuracy.

[0032] refer to Figure 1 , Figure 2 The first screw rod 6 and the second screw rod 11 are respectively fixedly connected with a rotating handle 13 at one end away from the welding platform 1 and the inside of the base 8, so that personnel can drive the first screw rod 6 and the second screw rod 11 to rotate from the outside.

[0033] refer to Figure 3 The surface of the roller 5 is covered with an anti-skid sleeve 14 to increase the surface friction, thereby preventing the elevator guardrail from accidentally sliding.

[0034] refer to Figure 1 The first positioning plate 2 is provided with anti-slip grooves on one side close to the second positioning plate 3 to improve the friction and increase the stability of clamping the elevator guardrail.

[0035] Brief description of the usage process: by placing the two welding rods of the elevator guardrail between the two adjacent first positioning plates 2 and the second positioning plates 3 respectively, and then rotating the first screw 6 to engage with the first threaded sleeve 7, the second positioning plate 3 is driven by the first threaded sleeve 7 to slide inside the slide groove 4 under the limit of the slide groove 4, so that the elevator guardrail rods of different sizes are clamped and fixed together with the first positioning plate 2, so that the two elevator guardrail rods can be butted at right angles for welding, and then the roller 5 is rotated inside the second positioning plate 3, so that the elevator guardrail rod can slide back and forth between the first positioning plate 2 and the second positioning plate 3, so as to adjust the position so that the two elevator guardrail rods are butted and fixed.

[0036] Embodiment 2:

[0037] refer to Figure 1 , Figure 2 , an elevator guardrail welding positioning frame, a base 8 is provided at the bottom of the welding platform 1, a first support rod 9 and a second support rod 10 are arranged alternately between the welding platform 1 and the base 8, the two ends of the first support rod 9 are respectively connected to the welding platform 1 for sliding and connected to the base 8 for rotation, a second screw rod 11 is connected to one side of the base 8 for rotation, a second screw rod 11 is connected to the second threaded sleeve 12 on the surface of the second screw rod 11 for rotation, one end of the second support rod 10 is connected to the welding platform 1 for rotation, and the other end is connected to the top of the second threaded sleeve 12 for rotation; the first support rod 9 and the second support rod 10 are driven to rotate and open by the second threaded sleeve 12, so that the top welding platform 1 can be lifted and supported, and the second screw rod 11 is rotated in the opposite direction so that the second threaded sleeve 12 can drive the first support rod 9 and the second support rod 10 to rotate and fold to lower the welding platform 1, so as to achieve the function of adjusting the appropriate welding height according to the welding needs of the personnel, thereby improving the practicality.

[0038] refer to Figure 1 , Figure 2 The bottom of the welding platform 1 and the top of the base 8 are fixedly connected with a limiting slide rail 15 that is slidably connected to the first support rod 9 and the second support rod 10, which limits the sliding of the first support rod 9 and the second support rod 10, thereby improving the stability of the welding platform 1 during lifting and lowering.

[0039] refer to Figure 1 , Figure 2 Universal wheels 16 are installed at the four corners of the bottom of the welding platform 1, and a locker 17 is installed on one side of the universal wheel 16 to facilitate the position movement of the positioning frame. At the same time, the universal wheel 16 can be limited and fixed by the locker 17.

[0040] refer to Figure 1 The four corners of the welding platform 1 are fixedly installed with collecting cups 18, which can collect and store the welding slag at the welding point, thereby preventing the welding slag from falling and facilitating cleaning.

[0041] Brief description of the usage process: by rotating the second screw 11 and the second threaded sleeve 12 to engage with the thread, one end of the second support rod 10 is driven by the second threaded sleeve 12 under the limit of the base 8, and then the other end of the second support rod 10 is rotated with the bottom of the welding platform 1, and one end of the first support rod 9 is rotated with the base 8 and the other end is rotated with the welding platform 1 to slide, so that the first support rod 9 and the second support rod 10 can be rotated and opened to lift and support the top welding platform 1, and at the same time, the second screw 11 is rotated in the opposite direction so that the first support rod 9 and the second support rod 10 can be rotated and folded, so as to lower the welding platform 1.

[0042] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An elevator guardrail welding positioning frame, comprising a welding platform (1), characterized in that: The four sides of the top of the welding platform (1) are fixedly connected to a first positioning plate (2); the four sides of the inside of the welding platform (1) close to the first positioning plate (2) are symmetrically rotatably connected to a first screw rod (6); the surface of the first screw rod (6) is threadedly sleeved with a first threaded sleeve (7); the top of the first threaded sleeve (7) is fixedly connected to a second positioning plate (3) used in conjunction with the first positioning plate (2); the second positioning plate (3) is rotatably connected to a roller (5) on one side close to the first positioning plate (2).

2. The elevator guardrail welding positioning frame according to claim 1, characterized in that: A base (8) is arranged at the bottom of the welding platform (1), and a first support rod (9) and a second support rod (10) are arranged alternately between the welding platform (1) and the base (8), the two ends of the first support rod (9) are respectively slidably connected to the welding platform (1) and rotatably connected to the base (8), a second screw rod (11) is rotatably connected to one side of the base (8), a second threaded sleeve (12) is threadedly sleeved on the surface of the second screw rod (11), one end of the second support rod (10) is rotatably connected to the welding platform (1), and the other end is rotatably connected to the top of the second threaded sleeve (12).

3. The elevator guardrail welding positioning frame according to claim 2, characterized in that: The first screw rod (6) and the second screw rod (11) are fixedly connected to a rotating handle (13) at one end away from the welding platform (1) and the inside of the base (8) respectively.

4. The elevator guardrail welding positioning frame according to claim 1, characterized in that: The surface of the roller (5) is covered with an anti-slip cover (14).

5. The elevator guardrail welding positioning frame according to claim 2, characterized in that: The bottom of the welding platform (1) and the top of the base (8) are both fixedly connected with a limiting slide rail (15) which is slidably connected to the first support rod (9) and the second support rod (10).

6. The elevator guardrail welding positioning frame according to claim 1, characterized in that: Universal wheels (16) are installed at the four corners of the bottom of the welding platform (1), and a locker (17) is installed on one side of the universal wheel (16).

7. The elevator guardrail welding positioning frame according to claim 1, characterized in that: Collection cups (18) are fixedly mounted on the four corners of the welding platform (1).

8. The elevator guardrail welding positioning frame according to claim 1, characterized in that: The first positioning plate (2) is provided with anti-slip grooves on one side close to the second positioning plate (3).

Images