Mortise and tenon welding door frame of steel fireproof door
By adopting the mortise and tenon welding door frame design and screw limiting system in steel fireproof doors, the problem of difficult border angle alignment during welding is solved, and high-quality welding effect and good matching effect are achieved.
Patent Information
- Application Number
- CN202422224584.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-10
AI Technical Summary
During the welding of steel fireproof doors, due to the difficulty of aligning the border angles and corners of the door frame, offset or misalignment is prone to occur, resulting in poor welding quality.
The door frame design is adopted to ensure the alignment between the first frame and the second frame through the setting of the fixing block, the mortise and tenon holes and the mortise and tenon insertion plate, and the effective diagonal limit and fixation is achieved through the coordination of the screw, the limit hole and the limit frame.
It effectively avoids the offset and misalignment of the frame angle during welding, ensures the welding quality, ensures the good matching effect between the door frame and the door leaf, and improves the quality of the overall production operation.
Smart Images
Figure CN223018465U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire doors, in particular to a mortise and tenon welded door frame for a steel fire door. Background Technique
[0002] The material of the fire door has the characteristics of fire prevention, anti-theft and heat insulation. The best material is steel. After the steel plate is bent by a bending machine, it is assembled into a door frame by splicing. During the splicing process of the door frame, the corners need to be aligned with each other and then welded.
[0003] However, during the welding process of the steel fire door, it is difficult to align the corners of the door frame. During the welding process, errors are likely to occur due to deviation or dislocation, resulting in poor matching between the final door frame and the door leaf, seriously affecting the quality of the fire door production operation. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a mortise and tenon welded door frame for a steel fire door, which has the advantages of being convenient to align the corners during the welding process of the door frame, effectively avoiding deviation and dislocation during the welding process, and ensuring the overall welding quality.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: A mortise and tenon welded door frame for a steel fire door, including a first frame. On both upper ends of the inner surface of the first frame, fixing blocks are fixedly connected. Mortise and tenon holes are opened on the surfaces of the fixing blocks. The top of the first frame is movably connected with a second frame. On both left ends of the inner surface of the second frame, mortise and tenon inserting plates are fixedly connected. The left ends of the mortise and tenon inserting plates are movably connected to the surfaces of the mortise and tenon holes. Between the upper end on the right outer surface of the first frame and the left end on the bottom outer surface of the second frame, a pressing block is movably connected. The middle end of the pressing block is movably connected with a screw rod through a bearing. A first limiting hole is opened on the right side of the first frame. A second limiting hole is opened on the bottom of the second frame. A limiting frame is movably connected between the surface of the second limiting hole and the surface of the first limiting hole. The middle end of the limiting frame is threadedly connected to the right end of the screw rod. On both sides of the pressing block, fixing frames are fixedly connected. A supporting spring is fixedly connected to the inner cavity of the fixing frame. A fixing plate is fixedly connected to the surface of the supporting spring. A second limiting rod is fixedly connected to the upper end of the fixing plate. A first limiting rod is fixedly connected to the lower end of the fixing plate.
[0006] As a preferred solution, the lower end of the screw rod is fixedly connected with a knob, and anti-slip bumps are fixedly connected to the surface of the knob.
[0007] As a preferred solution, guiding slide rods are movably connected to both sides of the limiting frame, and the upper ends of the guiding slide rods are fixedly connected to the surface of the pressing block.
[0008] As a preferred solution, a reinforcing plate is fixedly connected to the surface of the limiting frame, and the number of the reinforcing plates is two.
[0009] As a preferred solution, a connecting rod is fixedly connected between the surfaces of the first limiting rod and the second limiting rod, and a pull rod is fixedly connected to the middle end of the connecting rod.
[0010] As a preferred solution, guide grooves are formed on both sides of the inner cavity of the fixed frame, and the surface of the fixed plate is movably connected to the surface of the guide grooves.
[0011] As a preferred solution, the upper end of the second limiting rod is movably connected to the left end of the top of the second frame, and the left end of the first limiting rod is movably connected to the upper end of the left side of the first frame.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. Through the settings of the fixing block, mortise hole and mortise inserting plate, the present utility model facilitates the mortise splicing between the first frame and the second frame, and effectively avoids the deviation and dislocation between the first frame and the second frame, ensuring the quality of subsequent welding operations. Through the settings of the fixed frame, support spring, fixed plate, first limiting rod and second limiting rod, the present utility model can effectively limit between the abutting block and the first frame and the second frame, avoid the abutting block falling off between the first frame and the second frame, and enable the abutting block to effectively limit between the first frame and the second frame, ensuring that the first frame and the second frame can maintain a right angle state during the welding process, further improving the quality of subsequent welding operations. At the same time, through the settings of the control screw, abutting block, limiting frame, first limiting hole and second limiting hole, the present utility model can effectively limit between the first frame and the second frame, further avoiding the displacement and dislocation between the first frame and the second frame, thereby greatly improving the quality of subsequent welding operations.
[0014] 2. Through the settings of the knob and the anti-slip convex block, the present utility model facilitates the rotation of the control screw by personnel. Through the setting of the guiding slide rod, the purpose of guiding the limiting frame is achieved, avoiding the rotation of the limiting frame during the movement process. Through the setting of the reinforcing plate, the purpose of strengthening both ends of the limiting frame is achieved. Through the settings of the connecting rod and the pull rod, it is convenient for personnel to pull the first limiting rod and the second limiting rod. Through the setting of the guide groove, the purpose of guiding the fixed plate is achieved, avoiding the inclination of the fixed plate during the movement process. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a three-dimensional view of the present utility model;
[0016] Figure 2This is a three-dimensional view of another perspective of the present utility model;
[0017] Figure 3 This is a schematic diagram of the front partial sectional structure of the present utility model;
[0018] Figure 4 This is a schematic diagram of the right-side sectional structure of the fixed frame of the present utility model;
[0019] Figure 5 This is the present utility model Figure 1 The enlarged view of the partial area A in it.
[0020] In the figure: 1. First frame; 2. First limiting hole; 3. Second frame; 4. Second limiting hole; 5. Second limiting rod; 6. First limiting rod; 7. Limiting frame; 8. Fixed frame; 9. Mortise and tenon hole; 10. Knob; 11. Tightening block; 12. Screw rod; 13. Guide slide bar; 14. Fixed block; 15. Reinforcing plate; 16. Connecting rod; 17. Guide groove; 18. Support spring; 19. Fixed plate; 20. Mortise and tenon insertion plate. Specific embodiments
[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0022] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The "in one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.
[0023] Embodiment 1:
[0024] Please refer to Figures 1 - 5As shown in the figure, the utility model provides a mortise and tenon welded steel fire door frame, which includes a first frame 1. Fixed blocks 14 are fixedly connected to the upper ends of both sides of the inner surface of the first frame 1. Mortise and tenon holes 9 are formed on the surfaces of the fixed blocks 14. The top of the first frame 1 is movably connected to a second frame 3. Mortise and tenon inserts 20 are fixedly connected to the left ends of both sides of the inner surface of the second frame 3. The left ends of the mortise and tenon inserts 20 are movably connected to the surfaces of the mortise and tenon holes 9. A tightening block 11 is movably connected between the upper end of the right outer surface of the first frame 1 and the left end of the bottom outer surface of the second frame 3. A screw rod 12 is movably connected to the middle end of the tightening block 11 through a bearing. A first limiting hole 2 is formed on the right side of the first frame 1. A second limiting hole 4 is formed on the bottom of the second frame 3. A limiting frame 7 is movably connected between the surface of the second limiting hole 4 and the surface of the first limiting hole 2. The middle end of the limiting frame 7 is threadedly connected to the right end of the screw rod 12. Fixed frames 8 are fixedly connected to both sides of the tightening block 11. A support spring 18 is fixedly connected to the inner cavity of the fixed frame 8. A fixing plate 19 is fixedly connected to the surface of the support spring 18. A second limiting rod 5 is fixedly connected to the upper end of the fixing plate 19. A first limiting rod 6 is fixedly connected to the lower end of the fixing plate 19.
[0025] In this technical solution, through the settings of the fixed block 14, the mortise and tenon hole 9 and the mortise and tenon insert 20, while facilitating the mortise and tenon splicing between the first frame 1 and the second frame 3, it effectively avoids the offset and dislocation between the first frame 1 and the second frame 3, ensuring the quality of subsequent welding operations. Through the settings of the fixed frame 8, the support spring 18, the fixing plate 19, the first limiting rod 5 and the second limiting rod 6, it can effectively limit the tightening block 11 between the first frame 1 and the second frame 3, avoiding the detachment of the tightening block 11 from between the first frame 1 and the second frame 3, and enabling the tightening block 11 to effectively limit between the first frame 1 and the second frame 3, ensuring that the first frame 1 and the second frame 3 can maintain a right angle state during the welding process, further improving the quality of subsequent welding operations. At the same time, through the settings of the screw rod 12, the tightening block 11, the limiting frame 7, the first limiting hole 2 and the second limiting hole 4, it can effectively limit between the first frame 1 and the second frame 3, further avoiding the displacement and dislocation between the first frame 1 and the second frame 3, thereby greatly improving the quality of subsequent welding operations.
[0026] Embodiment Two:
[0027] On the basis of Embodiment One, the utility model is as Figures 1 - 4As shown, the lower end of the screw 12 is fixedly connected with a knob 10, and anti-slip bumps are fixedly connected to the surface of the knob 10. Guide slide rods 13 are movably connected to both sides of the limit frame 7. The upper ends of the guide slide rods 13 are fixedly connected to the surface of the abutting block 11. Reinforcing plates 15 are fixedly connected to the surface of the limit frame 7, and the number of the reinforcing plates 15 is two. A connecting rod 16 is fixedly connected between the surface of the first limit rod 6 and the surface of the second limit rod 5. A pull rod is fixedly connected to the middle end of the connecting rod 16. Guide grooves 17 are respectively formed on both sides of the inner cavity of the fixed frame 8. The surface of the fixing plate 19 is movably connected to the surface of the guide groove 17. The upper end of the second limit rod 5 is movably connected to the left end of the top of the second frame 3. The left end of the first limit rod 6 is movably connected to the upper end of the left side of the first frame 1.
[0028] In this technical solution, through the arrangement of the knob 10 and the anti-slip bumps, it is convenient for personnel to operate the screw 12 to rotate. Through the arrangement of the guide slide rods 13, the purpose of guiding the limit frame 7 is achieved, and the limit frame 7 is prevented from rotating during the movement. Through the arrangement of the reinforcing plates 15, the purpose of strengthening both ends of the limit frame 7 is achieved. Through the arrangement of the connecting rod 16 and the pull rod, it is convenient for personnel to pull the first limit rod 6 and the second limit rod 5. Through the arrangement of the guide grooves 17, the purpose of guiding the fixing plate 19 is achieved, and the fixing plate 19 is prevented from tilting during the movement.
[0029] The working principle of the utility model is as follows: Through the settings of the fixing block 14, the mortise and tenon holes 9 and the mortise and tenon insertion plate 20, while facilitating the mortise and tenon splicing between the first frame 1 and the second frame 3, it effectively avoids the offset and dislocation between the first frame 1 and the second frame 3, ensuring the quality of subsequent welding operations. Through the settings of the fixing frame 8, the support spring 18, the fixing plate 19, the first limiting rod 5 and the second limiting rod 6, it can effectively limit between the abutting block 11 and the first frame 1 and the second frame 3. While avoiding the falling off of the abutting block 11 from between the first frame 1 and the second frame 3, the abutting block 11 can effectively limit between the first frame 1 and the second frame 3, ensuring that the first frame 1 and the second frame 3 can maintain a right angle state during the welding process, further improving the quality of subsequent welding operations. At the same time, by rotating the control screw 12, it can rotate along the bearing on the abutting block 11 and drive the limiting frame 7 to move. During the movement of the limiting frame 7, it can gradually insert onto the surfaces of the first limiting hole 2 and the second limiting hole 4, thereby effectively limiting between the first frame 1 and the second frame 3, further avoiding the displacement and dislocation between the first frame 1 and the second frame 3, thus greatly improving the quality of subsequent welding operations. And when the welding operation between the first frame 1 and the second frame 3 is completed, by rotating the control screw 12 in the other direction to drive the limiting frame 7 to disengage from the surfaces of the first limiting hole 2 and the second limiting hole 4, by pulling the first limiting rod 6 and the second limiting rod 5 to move, it can drive the fixing plate 19 to move. While the fixing plate 19 moves, it can compress the support spring 18 inside the fixing frame 8 until the first limiting rod 6 and the second limiting rod 5 can respectively disengage from the surfaces of the first frame 1 and the second frame 3, then the operator can remove the abutting block 11 from between the first frame 1 and the second frame 3, thus bringing great convenience to the welding work of the operator.
[0030] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0031] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present utility model or those features that are not relevant to the implementation of the present utility model).
[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.
Claims
1. A steel fireproof door mortise and tenon welded door frame, comprising a first frame (1), characterized in that: The upper ends of both sides of the inner surface of the first frame (1) are fixedly connected with fixing blocks (14), and the surface of the fixing blocks (14) is provided with mortise and tenon holes (9). The top of the first frame (1) is movably connected with the second frame (3). The left ends of both sides of the inner surface of the second frame (3) are fixedly connected with mortise and tenon plugging plates (20), and the left ends of the mortise and tenon plugging plates (20) are movably connected to the surfaces of the mortise and tenon holes (9). A clamping block (11) is movably connected between the upper end of the right side of the outer surface of the first frame (1) and the left end of the bottom of the outer surface of the second frame (3). The middle end of the clamping block (11) is movably connected with a screw rod (12) via a bearing. The right side of the first frame (1) is opened. A first limiting hole (2) is provided, a second limiting hole (4) is provided at the bottom of the second frame (3), a limiting frame (7) is movably connected between the surface of the second limiting hole (4) and the surface of the first limiting hole (2), the middle end of the limiting frame (7) is threadedly connected to the right end of the screw rod (12), both sides of the clamping block (11) are fixedly connected with a fixing frame (8), the inner cavity of the fixing frame (8) is fixedly connected with a supporting spring (18), the surface of the supporting spring (18) is fixedly connected with a fixing plate (19), the upper end of the fixing plate (19) is fixedly connected with a second limiting rod (5), and the lower end of the fixing plate (19) is fixedly connected with the first limiting rod (6).
2. A steel fireproof door mortise and tenon welded door frame according to claim 1, characterized in that: The lower end of the screw rod (12) is fixedly connected to a knob (10), and the surface of the knob (10) is fixedly connected to an anti-slip bump.
3. A steel fireproof door mortise and tenon welded door frame according to claim 1, characterized in that: Both sides of the limiting frame (7) are movably connected with guide slide bars (13), and the upper ends of the guide slide bars (13) are fixedly connected to the surface of the abutting block (11).
4. A steel fireproof door mortise and tenon welded door frame according to claim 1, characterized in that: A reinforcing plate (15) is fixedly connected to the surface of the limiting frame (7), and the number of the reinforcing plates (15) is two.
5. The steel fireproof door mortise and tenon welded door frame according to claim 1, characterized in that: A connecting rod (16) is fixedly connected between the surface of the first limiting rod (6) and the surface of the second limiting rod (5), and a pull rod is fixedly connected to the middle end of the connecting rod (16).
6. A steel fireproof door mortise and tenon welded door frame according to claim 1, characterized in that: Guide grooves (17) are provided on both sides of the inner cavity of the fixing frame (8), and the surface of the fixing plate (19) is movably connected to the surface of the guide groove (17).
7. A steel fireproof door mortise and tenon welded door frame according to claim 1, characterized in that: The upper end of the second limiting rod (5) is movably connected to the left end of the top of the second frame (3), and the left end of the first limiting rod (6) is movably connected to the upper end of the left side of the first frame (1).