Novel protective door hinged support automatic welding device

By designing a combination of top plate, threaded rod, threaded cylinder, bottom plate, sleeve and welding components, the problems of unstable welding of hinge seats and hinges and difficulty in ensuring levelness were solved, realizing stable welding and level adjustment of hinge seats and hinges, and improving the stability and efficiency of welding.

CN224115459UActive Publication Date: 2026-04-14金鑫科技集团有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-16
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In the existing technology, it is difficult to stably fix larger and heavier hinges and hinges during welding, and it is difficult to ensure the levelness of the welding position, resulting in welding instability and deviation.

Method used

An automatic welding device was designed, comprising a top plate, a threaded rod, a threaded cylinder, a bottom plate, a sleeve, and welding components. The combination of the sleeve and welding components enables the stable fixing and horizontal adjustment of the hinge seat and hinge chain. The cooperation of hollow rollers and strong magnets ensures that the welding torch moves along the outer edge of the hinge seat and hinge chain. The bubble level ensures the horizontality of the welding position.

Benefits of technology

Stable welding of larger and heavier hinges and hinges has been achieved, avoiding welding deviations and improving welding stability and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel automatic welding device for a hinged support of a protective door, and relates to the related technical field of protective doors. The device comprises a top plate, a threaded rod, a threaded cylinder, a bottom plate, a sleeve and a welding assembly, the threaded rod is screwed in the threaded cylinder through threads, the upper end of the threaded rod extends out of the threaded cylinder and is rotationally connected to the bottom face of the top plate, and the bottom end of the threaded cylinder is rotationally connected to the upper portion of the bottom plate; the threaded cylinder is sleeved with a sleeve, and a welding assembly is arranged on the outer side of the sleeve. The welding assembly comprises two base plates symmetrically fixed to the periphery of the sleeve, a U-shaped frame is arranged outside each base plate, and a U-shaped groove is formed between the U-shaped frame and the base plate on the inner side of the U-shaped frame. Through the arrangement of the welding assembly, the sleeve, the bottom plate and the threaded cylinder, the problems that large and heavy hinged supports and hinges are inconvenient to stably weld, and the levelness of the welding position cannot be effectively guaranteed are solved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of protective doors, and in particular relates to a novel automatic welding device for protective door hinge seats. Background Technology

[0002] Protective doors are a type of door used for security protection, isolation, or control of access, and are widely used in industry, construction, transportation, medical fields, and other areas. They include fire doors, explosion-proof doors, radiation-proof doors, burglarproof doors, bulletproof doors, shielded doors, airtight doors, antibacterial doors, and air-raid shelter doors, etc. Most protective doors rely on hinges for installation. However, some protective doors are too heavy, and even with bolts, the hinges may not be stable enough. Therefore, for these large or heavy protective doors, welded hinges are often used for installation to ensure stable opening and closing. However, this welding method still has the following drawbacks in actual welding operations:

[0003] For the welding of hinges and hinges, half of them are welded to the wall or door frame and the other half to the security door. Since the fixing points of hinges and hinges are mostly rectangular structures, welding is required to weld them to the door frame, etc., along the outer edge of the hinges and hinges. However, since these hinges and hinges are large and heavy, simple hand-held welding is definitely not enough to meet the requirements. It is easy to increase physical exertion and cannot maintain stability.

[0004] Secondly, when welding hinges and hinges, it is necessary to ensure that the welding position is horizontal and stable. For example, the hinge needs to be welded to the wall in advance. If the hinge is tilted during welding, it will be impossible to connect it to the connecting parts on the protective door, resulting in the failure of all previous work. Therefore, it is necessary not only to ensure stable and convenient welding, but also to ensure that the welding position is horizontal. Utility Model Content

[0005] The purpose of this utility model is to provide a new type of automatic welding device for protective door hinge seats. By setting up welding components, sleeves, base plates, and threaded cylinders, it solves the problems of inconvenient and unstable welding of large and heavy hinge seats and hinges, and the inability to effectively guarantee the horizontality of the welding position.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a novel automatic welding device for protective door hinge seats, including a top plate, a threaded rod, a threaded cylinder, a bottom plate, a sleeve, and a welding assembly. The threaded cylinder is threaded with a threaded rod, and the upper end of the threaded rod extends out of the threaded cylinder and is rotatably connected to the bottom surface of the top plate. The bottom end of the threaded cylinder is rotatably connected to the top of the bottom plate.

[0008] The threaded cylinder is fitted with a sleeve, and a welding assembly is provided on the outer side of the sleeve;

[0009] The welding assembly includes two base plates symmetrically fixed to the outer periphery of the sleeve. Each base plate is provided with a U-shaped frame. A U-shaped groove is provided between the U-shaped frame and the base plate inside it. A dumbbell-shaped hollow roller is movably arranged in the U-shaped groove. A welding gun is movably inserted into the hollow roller. A screw is threaded through the base plate. A cone block is screwed to one end of the screw, and a strong magnet is fixed to the end of the cone block away from the screw.

[0010] Furthermore, symmetrically distributed support claws are fixed on both sides of the top plate, the top surface of the support claws is flush with the top surface of the top plate, the length of the top plate is the same as the length of the bottom plate, and the width of the top plate is smaller than the width of the bottom plate.

[0011] Furthermore, each of the four corners of the base plate is connected to a stud with a through thread, and a pad is fixed to the bottom of the stud, while a rocker arm is symmetrically fixed to the top of the stud.

[0012] Furthermore, a bubble level is fixed on one side and one end of the top surface of the base plate, and the bubble level is located at the center of its respective side.

[0013] Furthermore, connecting rods are provided at both ends of the U-shaped groove. The two ends of the connecting rods are respectively connected to the inner end face of the U-shaped frame and the outer end face of the substrate. The two ends of the hollow roller are located outside the U-shaped groove, and the middle part of the hollow roller is located inside the U-shaped groove and moves along the U-shaped groove.

[0014] Furthermore, a handwheel is fixed to the end of the screw away from the cone block, a threaded groove is provided on the end face of the screw near the cone block, a stud is fixed to the end face of the cone block near the screw, and the stud is screwed into the threaded groove, and an isolation plate is attached to the side of the strong magnet away from the cone block.

[0015] Furthermore, the outer periphery of the sleeve is also connected to a stud two through a thread, and one end of the stud two extending into the sleeve is rotatably connected to an arc plate. An arc-shaped pad is adhered to the inner arc surface of the arc plate, and the inner arc surface of the arc-shaped pad is in close contact with the outer periphery of the threaded cylinder.

[0016] This utility model has the following beneficial effects:

[0017] This invention solves the problem of inconvenient and stable welding of large and heavy hinges by setting up welding components and sleeves. When welding hinges, first move the sleeve to the corresponding position, then move the hinge to the designated position, insert the welding torch into the hollow roller, with the torch tip at the outer edge of the hinge. First, slide it around the U-shaped groove to ensure that the torch tip moves consistently along the outer edge of the hinge. At this time, the hinge is placed on the wall or door frame. Then, rotate the screw to tighten the hinge, and then the welding torch will work to weld the hinge to the door frame, etc. Then, slowly move it along the U-shaped groove to weld. This ensures stable welding without excessive operation or hand-held operation, guaranteeing sufficient stability and preventing welding deviation.

[0018] This invention solves the problem of not being able to effectively guarantee the horizontality of the welding position by setting a base plate, a threaded cylinder, and welding components. Before welding begins, the base plate is placed on the ground, and then the bubble in the bubble level is observed to see if it is centered. If it is not centered, the corresponding stud is simply rotated to raise and lower it until the bubble in the bubble level is centered. Then the threaded rod is rotated to rise until the top plate is pressed against the top of the door frame and other areas to complete the position fixation. At this time, the welding of the hinge seat and hinge is carried out, which can ensure that the position is horizontal and there will be no deviation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0020] Figure 1 A three-dimensional view of a new type of automatic welding device for protective door hinges, showing the welding of hinges and hinges.

[0021] Figure 2 A perspective view of a novel automatic welding device for protective door hinge seats;

[0022] Figure 3 This is a diagram showing the state of the upper hinge seat and hinge during welding;

[0023] Figure 4 This is a structural diagram of the base plate;

[0024] Figure 5 This is a structural diagram of the sleeve and welding assembly;

[0025] Figure 6 This is a partial connection diagram between the sleeve and the welding assembly after cross-section.

[0026] Figure 7 This is a structural diagram of a hollow roller;

[0027] Figure 8 This is a sectional disassembly diagram of the screw.

[0028] Figure label:

[0029] 1. Top plate; 101. Support claw; 2. Threaded rod; 3. Threaded cylinder; 4. Base plate; 401. Bubble level; 402. Stud one; 4021. Pad; 4022. Rocker arm; 5. Sleeve; 501. Stud two; 502. Arc plate; 503. Arc pad; 6. Welding assembly; 601. Base plate; 602. U-shaped frame; 603. U-shaped groove; 6031. Connecting rod; 604. Hollow roller; 605. Screw; 6051. Handwheel; 6052. Conical block; 6053. Stud three; 6054. Threaded groove; 6055. Strong magnet; 6056. Isolation plate; 606. Welding torch. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0031] Please see Figure 1-8 As shown, this utility model is a new type of automatic welding device for protective door hinge seats, including a top plate 1, a threaded rod 2, a threaded cylinder 3, a bottom plate 4, a sleeve 5 and a welding assembly 6. The threaded cylinder 3 is threaded with the threaded rod 2, and the upper end of the threaded rod 2 extends out of the threaded cylinder 3 and is rotatably connected to the bottom surface of the top plate 1. The bottom end of the threaded cylinder 3 is rotatably connected to the top of the bottom plate 4.

[0032] First, place the base plate 4 on the ground, then keep the threaded cylinder 3 still and rotate the threaded rod 2 upward to raise the top plate 1 until the top plate 1 contacts the top of the door frame and other areas, and keep the position stable.

[0033] The threaded cylinder 3 is fitted with a sleeve 5, and a welding assembly 6 is provided on the outside of the sleeve 5;

[0034] The sleeve 5 can move on the threaded cylinder 3 and the threaded rod 2, and can be used at different installation heights of the hinge seat and hinge; thus, the welding assembly 6 can move synchronously with it.

[0035] The welding assembly 6 includes two base plates 601 symmetrically fixed to the outer periphery of the sleeve 5. Each base plate 601 is provided with a U-shaped frame 602. A U-shaped groove 603 is provided between the U-shaped frame 602 and the base plate 601 inside it. A dumbbell-shaped hollow roller 604 is movably arranged in the U-shaped groove 603. A welding gun 606 is movably inserted into the hollow roller 604. A screw 605 is threaded through the base plate 601. A cone block 6052 is screwed to one end of the screw 605, and a strong magnet 6055 is fixed to the end of the cone block 6052 away from the screw 605.

[0036] When welding the hinge base and hinge, first press the hinge base and hinge onto the wall, then rotate the screw 605 inside the base plate 601 to move the cone block 6052 and the strong magnet 6055 until the strong magnet 6055 attracts the hinge base and hinge. Then adjust the hollow roller 604 to move within the U-shaped groove 603 and observe whether the tip of the welding gun 606 can move along the outer edge of the hinge base and hinge. The shape of the U-shaped groove 603 should match the size of the hinge base and hinge. If the welding gun 606 cannot move completely along the U-shaped groove 603, it indicates that the hinge base and hinge are misaligned. At this time, the position of the hinge base and hinge needs to be adjusted appropriately. Repeat this process until the tip of the welding gun 606 can move completely along the edge of the hinge base and hinge. Then press the hinge base and hinge, tighten the screw 605, so that the hinge base and hinge abut against the door frame, and then use the welding gun 606 to perform the welding operation.

[0037] Both sides of the top plate 1 are fixed with symmetrically distributed support claws 101. The top surface of the support claws 101 is flush with the top surface of the top plate 1. The length of the top plate 1 is the same as the length of the bottom plate 4, and the width of the top plate 1 is smaller than the width of the bottom plate 4.

[0038] The top plate 1 abuts against the top of the door frame and other areas, and the support claw 101 is used to increase the support points, or the support claw 101 can be omitted.

[0039] The four corners of the base plate 4 are all connected by through-threaded studs 402, and the bottom of the studs 402 is fixed with pads 4021, and the top of the studs 402 is symmetrically fixed with rocker arms 4022.

[0040] Rotating stud 402 by lever 4022 raises and lowers stud 402 and the corresponding pad 4021, thereby adjusting the height of each corner and adjusting appropriately according to the ground level to keep the base plate 4 and the components above it level.

[0041] A bubble level 401 is fixed on one side and one end of the top surface of the base plate 4, and the bubble level 401 is located at the center of its respective side.

[0042] Observe whether the base plate 4 is level by observing the bubble in the bubble level 401. If the bubble is not centered, it means that it is not level enough. Therefore, adjust the height of the corresponding stud 402.

[0043] Connecting rods 6031 are provided at both ends of the U-shaped groove 603. The two ends of the connecting rods 6031 are respectively connected to the inner end face of the U-shaped frame 602 and the outer end face of the substrate 601. The two ends of the hollow roller 604 are located outside the U-shaped groove 603, and the middle part of the hollow roller 604 is located inside the U-shaped groove 603 and moves along the U-shaped groove 603.

[0044] The base plate 601 and the U-shaped frame 602 are connected by the connecting rod 6031, so that the two are connected. The hollow roller 604 can roll in the U-shaped groove 603 formed by the two, which is suitable for the U-shaped welding treatment of the hinge seat and the outer edge of the hinge.

[0045] A handwheel 6051 is fixed to the end of the screw 605 away from the cone block 6052. A threaded groove 6054 is provided on the end face of the screw 605 near the cone block 6052. A stud 6053 is fixed on the end face of the cone block 6052 near the screw 605, and the stud 6053 is screwed into the threaded groove 6054. A separator 6056 is attached to the side of the strong magnet 6055 away from the cone block 6052.

[0046] Rotate the screw 605 by handwheel 6051 to pass it through the base plate 601. Then screw the cone block 6052 into the threaded groove 6054 through the stud 6053 to connect the cone block 6052 with the screw 605. Subsequently, an isolation plate 6056 is set on the surface of the strong magnet 6055. The isolation plate 6056 is made of non-woven fabric or other materials that do not affect magnetic attraction, so as to prevent the strong magnet 6055 from directly adsorbing the hinge seat and hinge, avoid wear, and increase friction to make the clamping more stable. Rotate the handwheel 6051 to bring the screw 605 and the cone block 6052 close to the hinge seat and hinge until the strong magnet 6055 adsorbs the hinge seat and hinge. Then adjust the position of the hinge seat and hinge to keep it horizontal and press it on the door frame. Finally, tighten the screw 605 to press the hinge seat and hinge.

[0047] The outer periphery of the sleeve 5 is also connected by a threaded stud 501, and one end of the stud 501 that extends into the sleeve 5 is rotatably connected to an arc plate 502. An arc-shaped pad 503 is bonded to the inner arc surface of the arc plate 502, and the inner arc surface of the arc-shaped pad 503 is in close contact with the outer periphery of the threaded sleeve 3.

[0048] After moving the sleeve 5 to the designated position, rotate the stud 501 to move the arc plate 502 and the arc pad 503 toward the center of the sleeve 5 until they fit against the outer circumference of the corresponding threaded cylinder 3 or threaded rod 2, thus stabilizing the position of the sleeve 5.

[0049] The specific working principle of this utility model is as follows: First, place the base plate 4 on the ground, and then observe whether the bubble in the bubble level 401 is centered. If it is not centered, rotate the stud 402 by the rocker arm 4022 to raise and lower the stud 402 and the corresponding pad 4021, thereby adjusting the height position of each corner. Adjust appropriately according to the ground level until the bubble in the bubble level 401 is centered. Then rotate the threaded rod 2 to raise it until the top plate 1 is pressed against the top of the door frame and other areas to complete the position fixation. Then, after the sleeve 5 is moved to the designated position, rotate the stud 501 to move the arc plate 502 and the arc pad 503 towards the center of the sleeve 5 until they are in contact with the outer circumference of the corresponding threaded cylinder 3 or threaded rod 2, so that the position of the sleeve 5 is stable. At this time, insert the welding torch 606 into the hollow roller 604, with the torch head of the welding torch 606 at the outer edge of the hinge seat and hinge. Press the hinge and hinge onto the wall, then rotate the screw 605 inside the base plate 601 to move the cone block 6052 and the strong magnet 6055 until the strong magnet 6055 attracts the hinge and hinge. Then adjust the hollow roller 604 to move within the U-shaped groove 603 and observe whether the tip of the welding torch 606 can move along the outer edge of the hinge and hinge. If the welding torch 606 cannot move completely along the U-shaped groove 603, it indicates that the hinge and hinge are misaligned. At this time, the position of the hinge and hinge needs to be adjusted appropriately. Repeat this process until the tip of the welding torch 606 can move completely along the edge of the hinge and hinge. At this time, press the hinge and hinge together and tighten the screw 605 so that the hinge and hinge abut against the door frame. Then use the welding torch 606 to perform welding operations. The welding torch 606 can move along the U-shaped groove 603 to perform stable welding and weld the hinge and hinge onto the door frame.

[0050] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A novel automatic welding device for protective door hinge seats, comprising a top plate (1), a threaded rod (2), a threaded cylinder (3), a bottom plate (4), a sleeve (5), and a welding assembly (6), characterized in that: The threaded cylinder (3) is internally threaded with a threaded rod (2), and the upper end of the threaded rod (2) extends out of the threaded cylinder (3) and is rotatably connected to the bottom surface of the top plate (1). The bottom end of the threaded cylinder (3) is rotatably connected to the top of the bottom plate (4). The threaded cylinder (3) is fitted with a sleeve (5), and a welding assembly (6) is provided on the outside of the sleeve (5). The welding assembly (6) includes two base plates (601) symmetrically fixed on the outer periphery of the sleeve (5). Each base plate (601) is provided with a U-shaped frame (602). A U-shaped groove (603) is provided between the U-shaped frame (602) and the base plate (601) inside it. A dumbbell-shaped hollow roller (604) is movably arranged in the U-shaped groove (603). A welding gun (606) is movably inserted into the hollow roller (604). A screw (605) is threaded through the base plate (601). A cone block (6052) is screwed to one end of the screw (605), and a strong magnet (6055) is fixed to the end of the cone block (6052) away from the screw (605).

2. The novel automatic welding device for protective door hinge seats according to claim 1, characterized in that: Both sides of the top plate (1) are fixed with symmetrically distributed support claws (101). The top surface of the support claws (101) is flush with the top surface of the top plate (1). The length of the top plate (1) is the same as the length of the bottom plate (4). The width of the top plate (1) is smaller than the width of the bottom plate (4).

3. The novel automatic welding device for protective door hinge seats according to claim 1, characterized in that: The four corners of the base plate (4) are connected by through-threaded studs (402), and the bottom of the studs (402) is fixed with pads (4021), and the top of the studs (402) is symmetrically fixed with rockers (4022).

4. The novel automatic welding device for protective door hinges according to claim 1, characterized in that: A bubble level (401) is fixed on one side and one end of the top surface of the base plate (4), and the bubble level (401) is located at the center of its respective side.

5. The novel automatic welding device for protective door hinge seats according to claim 1, characterized in that: A connecting rod (6031) is provided at both ends of the U-shaped groove (603). The two ends of the connecting rod (6031) are respectively connected to the inner end face of the U-shaped frame (602) and the outer end face of the base plate (601). The two ends of the hollow roller (604) are located outside the U-shaped groove (603), and the middle part of the hollow roller (604) is located inside the U-shaped groove (603) and moves along the U-shaped groove (603).

6. The novel automatic welding device for protective door hinges according to claim 1, characterized in that: A handwheel (6051) is fixed to the end of the screw (605) away from the cone (6052). A threaded groove (6054) is provided on the end face of the screw (605) near the cone (6052). A stud (6053) is fixed on the end face of the cone (6052) near the screw (605), and the stud (6053) is screwed into the threaded groove (6054). An isolation piece (6056) is attached to the side of the strong magnet (6055) away from the cone (6052).

7. The novel automatic welding device for protective door hinges according to claim 1, characterized in that: The outer periphery of the sleeve (5) is also connected by a threaded stud (501), and one end of the stud (501) extending into the sleeve (5) is rotatably connected to an arc plate (502). An arc-shaped pad (503) is bonded to the inner arc surface of the arc plate (502), and the inner arc surface of the arc-shaped pad (503) is in close contact with the outer periphery of the threaded cylinder (3).