Boiler furnace internal safety overhauling and lifting protection device

Abstract

This invention discloses a safety lifting and protective device for the internal maintenance of a boiler furnace, comprising a footboard. A protective net A is provided at the upper edge of the footboard. Folding rods are provided at both ends of the protective net A and are rotatably connected to the footboard. A crossbar is fixedly connected to the top of the protective net A and is rotatably connected to the folding rods. A fixing plate is fixedly connected to one side of the folding rod. A pin is provided at one end of the fixing plate, and a fixing shaft is provided at one end inside the fixing plate. The protective net A can effectively protect maintenance personnel from falling from a height due to accidents. At the same time, because the folding rod is foldable, the protective net A can be effectively stored, avoiding space occupation or obstruction of maintenance personnel's access.

Description

Technical Field

[0001] This invention relates to the field of boiler technology, and in particular to a safety maintenance lifting and protection device for the inside of a boiler furnace. Background Technology

[0002] A boiler is an energy conversion device. The energy input to a boiler includes the chemical energy of fuel and electrical energy. The boiler outputs steam, high-temperature water, or organic heat carriers with a certain amount of thermal energy.

[0003] However, due to the special structure of the boiler furnace, high-altitude operations are required when performing maintenance inside the boiler furnace. In order to ensure the safety of maintenance personnel, a certain protective structure is needed. Therefore, we propose a safety lifting and protective device for maintenance inside the boiler furnace. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a safety lifting and protection device for the internal maintenance of a boiler furnace, which can solve the technical problems mentioned in the background.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a safety maintenance lifting and protection device for the inside of a boiler furnace, including a pedal, a protective net A is provided at the edge of the upper surface of the pedal, both ends of the protective net A are provided with folding rods, and the folding rods are rotatably connected to the pedal, the top end of the protective net A is fixedly connected with a crossbar, and the crossbar is rotatably connected to the folding rod, a fixing plate is fixedly connected to one side of the folding rod, a pin is provided at one end of the fixing plate, a fixing shaft is provided at one end of the fixing plate, and the fixing shaft is fixedly connected to another folding rod.

[0006] Preferably, a protective net B is provided on the outer side of the pedal, a support rod is fixedly connected to the end of the protective net B, a connecting seat is provided at one end of the support rod, a frame is fixedly connected to the upper surface of the connecting seat, a slider is fixedly connected to the inner side of the frame, a base is rotatably connected to the lower surface of the connecting seat, a fixing bolt is provided inside the base, a spring A is fixedly connected to one end of the fixing bolt, and the spring A is fixedly connected to the support rod.

[0007] Preferably, a hook is provided on the upper surface of the crossbar, the hook is rotatably connected to the crossbar, a steel ball is provided at one end of the hook, a spring B is fixedly connected to the bottom end of the steel ball, and the spring B is fixedly connected to the crossbar.

[0008] Preferably, the cross-sectional shape of the fixing piece is "L" shaped, one end of the fixing piece is provided with a rectangular groove, and the pin passes through one end of the fixing piece.

[0009] Preferably, the inner side of the crossbar is provided with a groove, and the upper surface of the groove is provided with a circular hole, and the hook is rotatably connected to the crossbar.

[0010] Preferably, the pedal is provided with a groove with a "T" shaped cross-section, and the frame and the pedal are slidably connected by a slider.

[0011] Preferably, the base has a U-shaped cross-section, and circular holes are provided on both sides of one end of the base, and a chamfer is provided on one end of the fixing bolt.

[0012] Preferably, the hook has an "L" shaped cross section, and one end of the hook has a cylindrical protrusion.

[0013] Compared with the prior art, the beneficial effects that this invention can achieve are: 1. Protective net A can effectively protect maintenance personnel from falling from heights due to accidents. At the same time, because the folding pole is foldable, protective net A can be effectively stored, avoiding taking up space or affecting the movement of maintenance personnel.

[0014] 2. When the protective net B is unfolded, it can effectively prevent foreign objects from falling from a height and causing injury to maintenance personnel on the ground during the maintenance process. When it is folded, it can also cover and protect the folding mechanism under the pedal, preventing it from being damaged due to accidents when not in use.

[0015] 3. Hooks make it easier for maintenance personnel to hang equipment, which can also avoid the risk of the equipment falling accidentally during the process of picking it up. This not only prevents equipment damage, but also protects ground maintenance personnel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the fixing piece structure of the present invention; Figure 3 This is a schematic diagram of the connecting seat structure of the present invention; Figure 4 This is a cross-sectional view of the fixing bolt portion of the present invention; Figure 5 This is a cross-sectional view of the hook portion of the present invention; The components are: 1. Support rod; 2. Connecting seat; 3. Protective net A; 4. Fixing plate; 5. Crossbar; 6. Hook; 7. Folding rod; 8. Pedal; 9. Slider; 10. Frame; 11. Protective net B; 12. Pin; 13. Fixing shaft; 14. Base; 15. Fixing bolt; 16. Spring A; 17. Steel ball; 18. Spring B. Detailed Implementation

[0017] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0018] Example: like Figures 1-5 As shown, a safety maintenance lifting and protection device for the inside of a boiler furnace includes a pedal 8. A protective net A3 is provided at the edge of the upper surface of the pedal 8. Folding rods 7 are provided at both ends of the protective net A3, and the folding rods 7 are rotatably connected to the pedal 8. A crossbar 5 is fixedly connected to the top of the protective net A3, and the crossbar 5 is rotatably connected to the folding rod 7. A fixing plate 4 is fixedly connected to one side of the folding rod 7. A pin 12 is provided at one end of the fixing plate 4. A fixing shaft 13 is provided at one end inside the fixing plate 4, and the fixing shaft 13 is fixedly connected to another folding rod 7.

[0019] Specifically, a protective net B11 is provided on the outer side of the pedal 8. A support rod 1 is fixedly connected to the end of the protective net B11. A connecting seat 2 is provided at one end of the support rod 1. A frame 10 is fixedly connected to the upper surface of the connecting seat 2. A slider 9 is fixedly connected to the inner side of the frame 10. A base 14 is rotatably connected to the lower surface of the connecting seat 2. A fixing bolt 15 is provided inside the base 14. A spring A16 is fixedly connected to one end of the fixing bolt 15, and the spring A16 is fixedly connected to the support rod 1. A hook 6 is provided on the upper surface of the crossbar 5. The hook 6 is rotatably connected to the crossbar 5. A steel ball 17 is provided at one end of the hook 6. A spring B18 is fixedly connected to the bottom end of the steel ball 17. The spring B18 is fixedly connected to the crossbar 5; the cross-sectional shape of the fixing plate 4 is "L" shaped, and a rectangular groove is provided at one end of the fixing plate 4, through which the pin 12 passes; the inner side of the crossbar 5 is provided with a groove, and a circular hole is provided on the upper surface of the groove, and the hook 6 is rotatably connected to the crossbar 5; the pedal 8 is provided with a groove with a cross-sectional shape of "T", and the frame 10 is slidably connected to the pedal 8 through the slider 9; the cross-sectional shape of the base 14 is "U" shaped, and circular holes are provided on both sides of one end of the base 14, and a chamfer is provided at one end of the fixing bolt 15; the cross-sectional shape of the hook 6 is "L" shaped, and a cylindrical protrusion is provided at one end of the hook 6.

[0020] The workflow of this invention is as follows: When the maintenance personnel are on the pedal 8, they pull up the crossbar 5. At this time, the folding rod 7 will open, which in turn will cause the protective net A3 to open, providing protection for the maintenance personnel. When the folding rod 7 is almost fully open, pull up the pin 12 and continue to pull up the crossbar 5 until the fixing shaft 13 is inside the fixing plate 4 and the folding rod 7 is completely in a straight line. Then release the pin 12 to return it to its original position. At this time, the two adjacent folding rods 7 are locked together, thus preventing them from closing on their own during use. Then, rotate the hook 6 to suspend the equipment on the hook 6. Then, bend the support rod 1 to make it horizontal. At this time, the fixing bolt 15 is engaged. It will be inserted into the base 14 to fix the support rod 1. At this time, the protective net B11 opens to prevent foreign objects from falling. Then drive the machine to raise the pedal 8 to a suitable height. When the protective net B11 is not needed, press the fixing bolt 15 to compress the spring A16, and rotate the support rod 1 to make the support rod 1 vertical. When the support rod 1 is vertical, the protective net B11 can effectively cover and protect the lifting mechanism under the pedal 8. When the hook 6 is not needed, rotate the hook 6 to make it fit against the crossbar 5. At this time, under the action of the spring B18, the steel ball 17 will press against the hook 6 to fix the hook 6.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety lifting and protective device for internal maintenance of a boiler furnace, comprising a footboard (8), characterized in that: A protective net A (3) is provided at the edge of the upper surface of the pedal (8). Both ends of the protective net A (3) are provided with folding rods (7), and the folding rods (7) are rotatably connected to the pedal (8). A crossbar (5) is fixedly connected to the top of the protective net A (3), and the crossbar (5) is rotatably connected to the folding rod (7). A fixing piece (4) is fixedly connected to one side of the folding rod (7). A pin (12) is provided at one end of the fixing piece (4). A fixing shaft (13) is provided at one end of the fixing piece (4), and the fixing shaft (13) is fixedly connected to another folding rod (7).

2. The boiler furnace internal safety maintenance lifting and protection device according to claim 1, characterized in that: A protective net B (11) is provided on the outside of the pedal (8). A support rod (1) is fixedly connected to the end of the protective net B (11). A connecting seat (2) is provided at one end of the support rod (1). A frame (10) is fixedly connected to the upper surface of the connecting seat (2). A slider (9) is fixedly connected to the inner side of the frame (10). A base (14) is rotatably connected to the lower surface of the connecting seat (2). A fixing bolt (15) is provided inside the base (14). A spring A (16) is fixedly connected to one end of the fixing bolt (15), and the spring A (16) is fixedly connected to the support rod (1).

3. The boiler furnace internal safety maintenance lifting and protection device according to claim 1, characterized in that: The upper surface of the crossbar (5) is provided with a hook (6), the hook (6) is rotatably connected to the crossbar (5), one end of the hook (6) is provided with a steel ball (17), the bottom end of the steel ball (17) is fixedly connected with a spring B (18), and the spring B (18) is fixedly connected to the crossbar (5).

4. The boiler furnace internal safety maintenance lifting and protection device according to claim 1, characterized in that: The cross-sectional shape of the fixing piece (4) is "L" shaped, and a rectangular groove is provided at one end of the fixing piece (4). The pin (12) passes through one end of the fixing piece (4).

5. A boiler furnace internal safety maintenance lifting and protection device according to claim 1, characterized in that: The inner side of the crossbar (5) is provided with a groove, and the upper surface of the groove is provided with a circular hole. The hook (6) is rotatably connected to the crossbar (5).

6. A boiler furnace internal safety maintenance lifting and protection device according to claim 2, characterized in that: The pedal (8) is provided with a groove with a "T" shaped cross section, and the frame (10) and the pedal (8) are slidably connected by a slider (9).

7. A boiler furnace internal safety maintenance lifting and protection device according to claim 2, characterized in that: The base (14) has a U-shaped cross section and circular holes are provided on both sides of one end of the base (14). The fixing bolt (15) has a chamfer at one end.

8. A boiler furnace internal safety maintenance lifting and protection device according to claim 3, characterized in that: The hook (6) has an "L" shaped cross section, and one end of the hook (6) is provided with a cylindrical protrusion.

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