Steel cutting device for fire-fighting doors and windows
By designing a fire door and window steel cutting device that includes clamping components, support rods, and elastic structures, the problem of deformation caused by lack of support at the suspended tail end during steel cutting was solved, achieving flexible support and cleaning of the steel, and improving cutting accuracy and efficiency.
Patent Information
- Application Number
- CN202520171632.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-26
AI Technical Summary
During the cutting of steel for fire doors and windows, the lack of support at the suspended end of the steel leads to uneven stress and deformation.
A steel cutting device for fire doors and windows was designed, including a cutting machine body, clamping parts, support rods, sliding plates and movable parts. The steel is supported by an inwardly inclined top plate, and with the help of spring sheet assembly and elastic cloth, the steel can be flexibly supported and cleaned, reducing deformation and wear.
It improves the support flexibility during steel cutting, reduces steel deformation and wear, and ensures cutting accuracy and efficiency.
Smart Images
Figure CN223889024U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of metal cutting technology, specifically a steel cutting device for fire doors and windows. Background Technology
[0002] Fire doors and windows are an important part of building fire safety, with special fire prevention, smoke isolation and rescue functions. They are mainly installed in fire-resistant partitions, firewalls, important equipment rooms and special function rooms with openings.
[0003] In the production process of fire doors and windows, in order to meet the specific size, shape and structural design requirements of fire doors and windows, a cutting machine is usually used to cut long steel into specified lengths to ensure a perfect fit with the building structure, thereby achieving the functional requirements of fire prevention, smoke isolation and rescue.
[0004] Through long-term observation, it has been found that when cutting long steel pieces, the tail end is usually suspended in the air without support, which causes stress and deformation during cutting, resulting in uneven stress and deformation. Therefore, a steel cutting device for fire doors and windows is proposed to address the above problems. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a steel cutting device for fire doors and windows.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The steel cutting device for fire doors and windows of this utility model includes a cutting machine body; a clamping component is installed on the top of the cutting machine body; a support rod is fixedly connected to the side wall of the cutting machine body; multiple sets of inner grooves are opened on the side wall of the support rod; a sliding plate is slidably connected to the middle of the support rod; a top plate is fixedly connected to the top of the sliding plate, and the inner wall of the top plate is inclined inward; two sets of movable parts are slidably connected to the side wall of the sliding plate, and the middle of the movable parts is arc-shaped; two sets of springs are fixedly connected to the inner wall of the movable parts, and the other end of the springs is fixedly connected to the inner wall of the sliding plate; a locking pin matching the shape of the support rod is fixedly connected to the inner wall of the movable parts.
[0007] Preferably, a bracket is fixedly connected to the bottom of the support rod; a spring sheet assembly is fixedly connected to the top of the bracket; two sets of push rods are fixedly connected to the bottom of the slide plate; a top piece is fixedly connected to the end of the push rod, and the surface of the top piece is arc-shaped; the top piece is located close to the inner wall of the spring sheet assembly.
[0008] Preferably, the side wall of the slide plate is fixed with an elastic cloth, and the other end of the elastic cloth is fixed to the inner wall of the cutting machine body; the side wall of the elastic cloth is fixed with multiple sets of counterweights.
[0009] Preferably, the slide plate sidewall is rotatably connected to a baffle; the output shaft of the baffle is fixedly connected to both ends of an elastic strip; the end of the elastic strip is fixedly connected to a fixing plate, and the fixing plate is fixedly connected to the slide plate.
[0010] Preferably, the inner wall of the top plate is rotatably connected to a wheel.
[0011] Preferably, a gripping block is fixed to the outer wall of the movable component.
[0012] The beneficial effects of this utility model are:
[0013] This utility model provides a steel cutting device for fire doors and windows. By using an inwardly inclined top plate, it can improve the problem of uneven stress and deformation of the steel due to the lack of support at the middle of the suspended tail end during cutting. At the same time, the sliding plate can slide on the inner wall of the support rod, which can improve the flexibility of the top plate in supporting the steel and support steel of different models and lengths.
[0014] This utility model provides a steel cutting device for fire doors and windows. With the help of a set of spring clips, the spring clips can generate vibration force when they deform and then reset. The vibration force is used to clean the entire slide plate. At the same time, the spring clips set, which are equidistant from the inner groove, can initially limit the position of the slide plate and reduce the phenomenon of displacement when it is stuck into the inner groove. The arc-shaped top piece can reduce the wear when it contacts the middle of the spring clips. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the support rod structure in this utility model;
[0018] Figure 3 for Figure 2 Enlarged view of point A;
[0019] Figure 4 This is a schematic diagram of the movable component structure in this utility model;
[0020] Figure 5 This is a schematic diagram of the skateboard structure in this utility model.
[0021] Legend: 1. Cutting machine body; 11. Clamping component; 12. Support rod; 13. Inner groove; 14. Slide plate; 15. Top plate; 16. Moving part; 17. Spring; 18. Locking pin; 2. Bracket; 21. Spring sheet assembly; 22. Push rod; 23. Top component; 3. Elastic cloth; 31. Counterweight; 4. Baffle; 41. Elastic strip; 42. Fixed plate; 5. Rotary wheel; 6. Grip block. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific embodiments are given below.
[0023] like Figure 1-5As shown, a steel cutting device for fire doors and windows includes a cutting machine body 1; a clamping member 11 is installed on the top of the cutting machine body 1; a support rod 12 is fixedly connected to the side wall of the cutting machine body 1; multiple sets of inner grooves 13 are formed on the side wall of the support rod 12; a sliding plate 14 is slidably connected to the middle of the support rod 12; a top plate 15 is fixedly connected to the top of the sliding plate 14, and the inner wall of the top plate 15 is inclined inward; two sets of movable parts 16 are slidably connected to the side wall of the sliding plate 14, and the middle of the movable part 16 is round. The moving part 16 is arc-shaped; two sets of springs 17 are fixedly connected to the inner wall of the moving part 16, and the other end of the springs 17 is fixedly connected to the inner wall of the slide plate 14; a locking pin 18 matching the shape of the support rod 12 is fixedly connected to the inner wall of the moving part 16; during operation, the operator needs to install the cutting machine body 1 in the designated working area and connect it to the power supply, then place the steel to be processed in the middle area of the cutting machine body 1, and use the clamping part 11 to clamp and fix the steel. At the same time, when the steel is placed, its middle part will be aligned with the inward direction. The inclined top plate 15 makes contact, allowing it to support longer steel sections. When the working position of the top plate 15 needs to be adjusted, the operator can hold the two sets of movable parts 16 on the sidewalls and pull them outwards simultaneously until the locking pin 18 is completely disengaged from the designated inner groove 13. At this point, the slide plate 14 can be pushed and slid along the inner wall of the support rod 12. After adjusting to the designated position, the support of the two sets of movable parts 16 is released, and under the restoring force of the spring 17, the locking pin 18 is re-engaged into the inner wall of the designated inner groove 13, thus fixing the position of the top plate 15. This step, combined with the inwardly inclined top plate 15, can improve the problem of uneven stress and deformation of the steel due to the lack of support at the middle of the suspended tail end during cutting. At the same time, the slide plate 14 can slide along the inner wall of the support rod 12, which can improve the flexibility of the top plate 15 in supporting the steel and support steel of different models and lengths.
[0024] like Figure 1-5As shown, a bracket 2 is fixedly connected to the bottom of the support rod 12; a spring sheet assembly 21 is fixedly connected to the top of the bracket 2; two sets of push rods 22 are fixedly connected to the bottom of the slide plate 14; a top member 23 is fixedly connected to the end of the push rod 22, and the surface of the top member 23 is arc-shaped; the top member 23 is located close to the inner wall of the spring sheet assembly 21; during operation, the fixed bracket 2 at the bottom of the support rod 12 can provide positional support for the spring sheet assembly 21, so that the surface of the spring sheet assembly 21 has multiple sets of protruding elastic sheets. At the same time, during the overall position adjustment of the slide plate 14, the two sets of push rods 22 will sequentially approach the adjacent elastic sheet positions and continue to push. Afterwards, the middle part of the spring sheet assembly 21 is deformed and then reset. The spacing of the elastic pieces in the middle of the spring sheet assembly 21 is consistent with that of the inner groove 13, so that the spring sheet assembly 21 can guide the position of the slide plate 14 during the adjustment process. The spring sheet assembly 21 set in this step can generate vibration force when it is deformed and then reset, and use the vibration force to clean the slide plate 14 as a whole. At the same time, the spring sheet assembly 21, which is equidistant from the inner groove 13, can initially limit the position of the slide plate 14 and reduce the phenomenon of displacement when it is stuck in the inner groove 13. The arc-shaped top piece 23 can reduce the wear when it contacts the middle part of the spring sheet assembly 21.
[0025] like Figure 1-5 As shown, an elastic cloth 3 is fixed to the side wall of the slide plate 14, and the other end of the elastic cloth 3 is fixed to the inner wall of the cutting machine body 1; multiple sets of counterweights 31 are fixed to the side wall of the elastic cloth 3; during operation, by setting the elastic cloth 3 on the side wall of the slide plate 14, the top plate 15 can stretch the middle of the elastic cloth 3 when it moves, and the side wall of the elastic cloth 3 will drop under the action of multiple sets of counterweights 31, so that the elastic cloth 3 can bend outward as a whole. This step, together with the elastic cloth 3, can reduce the direct transfer of the splashed cutting debris to the exposed inner groove 13 position, which would cause the subsequent locking pin 18 to get stuck when it is embedded in the inner wall of the inner groove 13. At the same time, under the action of multiple sets of counterweights 31, the edge of the elastic cloth 3 can be tilted, and the accumulation and adhesion of cutting impurities on the top of the elastic cloth 3 can be reduced.
[0026] like Figure 1-5 As shown, a baffle 4 is rotatably connected to the side wall of the slide plate 14; elastic strips 41 are fixedly connected to both ends of the output shaft of the baffle 4; a fixing plate 42 is fixedly connected to the end of the elastic strip 41, and the fixing plate 42 is fixedly connected to the slide plate 14; during operation, by setting the baffle 4 on the side wall of the slide plate 14, under the action of gravity and the torque of the elastic strip 41, the baffle 4 can be closed with the side wall of the slide plate 14 when placed, and can be flipped when the baffle 4 is pulled. This step, together with the baffle 4, can reduce the entry of impurities into the inner wall area of the slide plate 14, which would cause the subsequent moving parts 16 to have greater resistance when sliding, reduce the wear of both over time, and together with the elastic strip 41, can improve the stability of the baffle 4 when placed and working.
[0027] like Figure 1-5 As shown, the inner wall of the top plate 15 is rotatably connected to a rotating wheel 5. During operation, two sets of rotating wheels 5 are provided on the top of the top plate 15, and the steel will directly contact the rotating wheels 5 when it is placed. At the same time, when the steel needs to be moved later, it can be pulled directly and used in conjunction with the rotating wheels 5. This step is equipped with rotating wheels 5 to facilitate the subsequent transfer of steel and reduce the wear between the steel and the top plate 15 during the transfer.
[0028] like Figure 1-5 As shown, a grip block 6 is fixed to the outer wall of the movable part 16. During operation, the protruding grip block 6 is provided on the side wall of the movable part 16, and when the grip block 6 is pulled, the inner wall area of the grip block 6 can be held directly. Under the action of the grip block 6, this step can increase the force point when pulling the movable part 16 and reduce the problem of slippage.
[0029] Working principle: After installing the cutting machine body 1 in the designated working area and connecting it to the power supply, the steel to be processed is placed in the middle area of the cutting machine body 1 and clamped and fixed using the clamping parts 11. At the same time, the middle part of the steel will contact the inwardly inclined top plate 15, so that the top plate 15 can support longer steel pieces. When the working position of the top plate 15 needs to be adjusted later, the operator can hold the two sets of movable parts 16 on the side walls and pull them outwards simultaneously until the locking pin 18 engages with the designated inner groove. After 13 is completely disengaged, the slide plate 14 can be pushed and slid along the inner wall of the support rod 12. After adjusting to the designated position, the support for the two sets of moving parts 16 is released, and under the restoring force of the spring 17, the locking pin 18 is re-engaged into the inner wall of the designated inner groove 13, thus completing the position fixation of the top plate 15. A fixed bracket 2 is provided at the bottom of the support rod 12, which can provide position support for the spring sheet assembly 21, allowing multiple sets of protruding elastic sheets on the surface of the spring sheet assembly 21. This also facilitates the position adjustment of the slide plate 14. During the process, the two sets of push rods 22 will sequentially approach the adjacent elastic plates and continue to push, causing the middle part of the spring plate group 21 to deform and then reset. The spacing of the elastic plates in the middle of the spring plate group 21 is consistent with the inner groove 13, so that the spring plate group 21 can guide the position of the slide plate 14 during the adjustment process. By providing an elastic cloth 3 on the side wall of the slide plate 14, the top plate 15 can stretch the middle part of the elastic cloth 3 when it moves, and the side wall of the elastic cloth 3 will drop under the action of multiple sets of counterweights 31, so that the elastic cloth 3 can bend outward as a whole. A baffle 4 is provided on the side wall of the skateboard 14. Under the action of gravity and the torque of the elastic strip 41, the baffle 4 can be closed with the side wall of the skateboard 14 when it is placed. When the baffle 4 is pulled, it can be flipped. Two sets of rotating wheels 5 are provided on the top of the top plate 15. When the steel is placed, it will directly contact the rotating wheels 5. When the position of the steel needs to be moved later, it can be pulled directly and used in conjunction with the rotating wheels 5. A protruding grip block 6 is provided on the side wall of the movable part 16. When the grip block 6 is pulled, the inner wall area of the grip block 6 can be held directly.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A steel cutting device for fire doors and windows, comprising a cutting machine body (1); a clamping member (11) is installed on the top of the cutting machine body (1); characterized in that: The cutting machine body (1) has a support rod (12) fixedly connected to its side wall; the support rod (12) has multiple sets of inner grooves (13) on its side wall; the support rod (12) has a sliding plate (14) slidably connected to its middle part; the top plate (15) is fixedly connected to the top of the sliding plate (14), and the inner wall of the top plate (15) is inclined inward; the sliding plate (14) has two sets of movable parts (16) slidably connected to its side wall, and the middle part of the movable part (16) is arc-shaped; the inner wall of the movable part (16) has two sets of springs (17) fixedly connected, and the other end of the springs (17) is fixedly connected to the inner wall of the sliding plate (14); the inner wall of the movable part (16) has a locking pin (18) that matches the shape of the support rod (12) fixedly connected.
2. The steel cutting device for fire doors and windows as described in claim 1, characterized in that: The support rod (12) is fixed to the bottom of the bracket (2); the bracket (2) is fixed to the top of the spring sheet group (21); the slide plate (14) is fixed to the bottom of the two sets of push rods (22); the push rod (22) is fixed to the end of the top part (23), and the surface of the top part (23) is arc-shaped; the top part (23) is located close to the inner wall of the spring sheet group (21).
3. The steel cutting device for fire doors and windows as described in claim 1, characterized in that: The side wall of the slide plate (14) is fixed with an elastic cloth (3), and the other end of the elastic cloth (3) is fixed to the inner wall of the cutting machine body (1); the side wall of the elastic cloth (3) is fixed with multiple sets of counterweights (31).
4. The steel cutting device for fire doors and windows as described in claim 1, characterized in that: The slide plate (14) is rotatably connected to a baffle (4); the output shaft of the baffle (4) is fixedly connected to both ends of an elastic strip (41); the end of the elastic strip (41) is fixedly connected to a fixing plate (42), and the fixing plate (42) and the slide plate (14) are fixedly connected.
5. The steel cutting device for fire doors and windows as described in claim 1, characterized in that: The inner wall of the top plate (15) is rotatably connected to a wheel (5).
6. The steel cutting device for fire doors and windows as described in claim 1, characterized in that: The outer wall of the movable part (16) is fixed with a gripping block (6).