A highly safe boiler furnace maintenance lifting platform

Abstract

The present application relates to the field of furnace maintenance technology, and in particular to a high-safety boiler furnace maintenance lifting platform, including a main platform, a first fence, a first lifting rope and a folding platform, etc.; a first fence is respectively provided at the front and rear of the main platform; a plurality of first lifting ropes are respectively provided on each first fence, and the upper parts of all the first lifting ropes are connected to an external winding mechanism; a folding platform is rotatably connected to the left and right of the main platform. When inspecting the narrow part of the furnace, the pedal is controlled to rotate by the first electric push rod so that the pedal rotates to a horizontal state for the convenience of workers to step on, and then the workers can start to inspect the furnace. When the inner wall of the furnace needs to be inspected at a close distance, the workers can step on the pedal and walk to the position of the folding platform close to the inner wall of the furnace, and then inspect the inner wall of the furnace at a close distance.

Description

Technical Field

[0001] The present application relates to the technical field of furnace maintenance, and in particular to a high-safety boiler furnace maintenance lifting platform. Background Art

[0002] Chinese patent: CN114014228A proposes a lifting platform for boiler furnace maintenance, which adopts a main platform and adds folding extension platforms around it to smoothly pass through the narrow part of the inner wall of the funnel-shaped furnace; however, when the folding platform is in a semi-expanded state to inspect the narrow part of the furnace, the folding platform is inclined, and it is difficult for workers to stand on the folding platform, which is inconvenient for workers to inspect the furnace. Summary of the invention

[0003] In order to overcome the disadvantage that when the folding platform is in a semi-expanded state for inspecting the narrow part of the furnace, the folding platform is tilted, making it difficult for workers to stand on the folding platform and inconvenient for workers to inspect the furnace, the present invention provides a highly safe boiler furnace inspection lifting platform.

[0004] The technical solution is: a high-safety boiler furnace maintenance lifting platform, including a main platform, a first fence, a first lifting rope, a folding platform, a second fence and a second lifting rope; a first fence is respectively arranged at the front and rear of the main platform; each first fence is respectively arranged with a plurality of first lifting ropes, and the upper parts of all the first lifting ropes are connected to an external winding mechanism; a folding platform is rotatably connected to the left and right parts of the main platform; a second fence is respectively rotatably connected to the front and rear of each folding platform; a second lifting rope is respectively arranged on each second fence, and the upper parts of all the second lifting ropes are also connected to an external winding mechanism; it also includes a first transmission shaft, a pedal, a gear, a first electric push rod and a rack; a plurality of first transmission shafts are respectively rotatably connected to each folding platform; a pedal is respectively fixed to each first transmission shaft; a gear is respectively fixed to the front of each first transmission shaft; a first electric push rod is respectively fixed to the lower side of each folding platform; a rack is respectively fixed to the telescopic end of each first electric push rod; all gears on the same folding platform are meshed with the corresponding rack.

[0005] As a preferred technical solution of the present invention, the upper side of the pedal is made of silicone rubber and is provided with a plurality of grooves.

[0006] As a preferred technical solution of the present invention, it also includes arc blocks; a plurality of arc blocks are respectively arranged at one end of each folding platform away from the main platform.

[0007] As a preferred technical solution of the present invention, it also includes a second electric push rod and a blocking rod; a plurality of second electric push rods are respectively arranged on each second fence; a blocking rod is respectively fixedly connected to the telescopic end of each second electric push rod; and each blocking rod is slidably connected to the corresponding second fence.

[0008] As a preferred technical solution of the present invention, one end of each baffle rod away from the main platform is connected to a universal ball.

[0009] As a preferred technical solution of the present invention, it also includes an elastic band, a fixed ring and a fixed hook; each second fence is fixedly connected to a side of the main platform away from an elastic band; each second fence is fixedly connected to a side of the main platform away from a fixed hook; each elastic band is fixedly connected to a fixed ring at the bottom; the fixed hook is located below the fixed ring.

[0010] As a preferred technical solution of the present invention, it also includes a second transmission shaft, a first mounting plate, a first light strip and a second light strip; each folding platform is rotatably connected to a second transmission shaft at one end away from the main platform; each second transmission shaft is rotatably connected to a first mounting plate; each first mounting plate is fixedly connected to a first light strip on the upper right side; each first mounting plate is fixedly connected to a second light strip on the upper side; the first mounting plate has a built-in battery, and the first light strip and the second light strip are electrically connected to the battery.

[0011] As a preferred technical solution of the present invention, it also includes a counterweight ball; a counterweight ball is hung at the lower part of each second transmission shaft through a rope.

[0012] As a preferred technical solution of the present invention, it also includes a second mounting plate, a third electric push rod and an electromagnetic suction cup; a plurality of second mounting plates are fixedly connected to each folding platform; a third electric push rod is fixedly connected to each second mounting plate; and the telescopic end of each third electric push rod is rotatably connected to an electromagnetic suction cup via a torsion spring shaft.

[0013] As a preferred technical solution of the present invention, the lower side of the electromagnetic chuck is configured to be arc-shaped, which fits and matches the arc surface of the inner wall of the furnace.

[0014] Beneficial effects: 1. When inspecting the narrow part of the furnace, the pedal is controlled to rotate by the first electric push rod, so that the pedal rotates to a horizontal state to facilitate the workers to step on it, and then the workers can start to inspect the furnace. When the inner wall of the furnace needs to be inspected at close range, the workers can step on the pedal and walk to the position of the folding platform close to the inner wall of the furnace, and then inspect the inner wall of the furnace at close range.

[0015] 2. When inspecting the narrow part of the furnace, the folding platform flips downward around the rotating shaft connected to the main platform. After the folding platform is flipped to contact the inner wall of the boiler furnace, the second electric push rod is controlled to drive the blocking rod to move toward the inner wall of the furnace, so that the blocking rod contacts the inner wall of the furnace. In this way, the gap is blocked by the blocking rod, eliminating the risk of workers falling from the gap.

[0016] 3. When inspecting the furnace, power the first light strip to illuminate the inner wall of the furnace, so that it is convenient for workers to inspect the inner wall of the furnace, and through the gravity of the counterweight ball, the first light strip is always parallel to the inner wall of the furnace. In this way, the first light strip emits light parallel to the inner wall of the furnace, which can increase the contrast between the cracks and the surrounding walls. In this way, even if the cracks are very small, they can become more obvious due to the contrast between light and shadow, making it easier to find the existence of cracks; when inspecting the wide part of the inner wall of the furnace, power the second light strip to emit vertical upward light to illuminate the inner wall of the furnace, and the emitted light is parallel to the inner wall of the furnace, which is more conducive to finding cracks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a high-safety boiler furnace maintenance lifting platform of the present invention;

[0018] Figure 2 It is a front view of the high-safety boiler furnace maintenance lifting platform of the present invention;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the second electric push rod and the stop rod combination of the high-safety boiler furnace maintenance lifting platform of the present invention;

[0020] Figure 4 It is a schematic diagram of the combined three-dimensional structure of the second transmission shaft, the first mounting plate, the first light strip, the counterweight ball and the second light strip of the high-safety boiler furnace maintenance lifting platform of the present invention;

[0021] Figure 5 The present invention is a schematic diagram of the installation position of the first electric push rod of the high-safety boiler furnace maintenance lifting platform.

[0022] Marked in the figure: 1-main platform, 2-first fence, 3-first lifting rope, 4-folding platform, 5-second fence, 6-second lifting rope, 7-first transmission shaft, 8-pedal, 9-gear, 10-first electric push rod, 11-rack, 12-arc block, 13-second electric push rod, 14-block rod, 15-boiler furnace, 21-second transmission shaft, 22-first mounting plate, 23-first light strip, 24-counterweight ball, 25-second light strip, 31-elastic belt, 32-fixing ring, 33-fixing hook, 41-second mounting plate, 42-third electric push rod, 43-electromagnetic suction cup. DETAILED DESCRIPTION

[0023] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0024] Example 1

[0025] A high-safety boiler furnace maintenance lifting platform, such as Figure 1-5 As shown, it includes a main platform 1, a first fence 2, a first hanging rope 3, a folding platform 4, a second fence 5 and a second hanging rope 6; a first fence 2 is respectively arranged at the front and rear of the main platform 1; two first hanging ropes 3 are respectively arranged on each first fence 2, and the upper parts of all the first hanging ropes 3 are connected to an external winding mechanism; a folding platform 4 is respectively rotatably connected to the left and right of the main platform 1; a second fence 5 is respectively rotatably connected to the front and rear of each folding platform 4; a second hanging rope 6 is respectively arranged on each second fence 5, and the upper parts of all the second hanging ropes 6 are also connected to the external winding mechanism;

[0026] It also includes a first transmission shaft 7, a pedal 8, a gear 9, a first electric push rod 10 and a rack 11; three first transmission shafts 7 are rotatably connected to each folding platform 4; a pedal 8 is fixedly connected to each first transmission shaft 7; a gear 9 is fixedly connected to the front of each first transmission shaft 7; a first electric push rod 10 is fixedly connected to the lower side of each folding platform 4; a rack 11 is fixedly connected to the telescopic end of each first electric push rod 10; all gears 9 on the same folding platform 4 are meshed with the corresponding rack 11.

[0027] Furthermore, in order to increase the friction between the worker's feet and the pedal 8, the upper side of the pedal 8 is set to be made of silicone rubber material and is provided with a plurality of grooves.

[0028] Furthermore, it also includes an arc block 12; two arc blocks 12 are respectively arranged at one end of each folding platform 4 away from the main platform 1.

[0029] Furthermore, it also includes a second electric push rod 13 and a blocking rod 14; two second electric push rods 13 are respectively provided on each second fence 5; a blocking rod 14 is respectively fixed to the telescopic end of each second electric push rod 13; and each blocking rod 14 is slidably connected to the corresponding second fence 5.

[0030] Furthermore, in order to prevent the baffle rods 14 from scraping the inner wall of the furnace when the baffle rods 14 move upward with the main platform 1, a universal ball is connected to one end of each baffle rod 14 away from the main platform 1.

[0031] Furthermore, it also includes an elastic band 31, a fixing ring 32 and a fixing hook 33; each second fence 5 is fixedly connected to a side of an elastic band 31 away from the main platform 1; each second fence 5 is fixedly connected to a side of a fixing hook 33 away from the main platform 1; each elastic band 31 is fixedly connected to a fixing ring 32 at the lower part; the fixing hook 33 is located below the fixing ring 32.

[0032] The first step: place the main platform 1 and the folding platform 4 at the bottom of the furnace. In the initial state, the folding platform is in a vertically folded state, so that the main platform 1 and the folding platform 4 can easily pass through the narrow part of the furnace; connect the upper part of the first lifting rope 3 and the second lifting rope 6 to the external winding mechanism, and then let the workers stand on the main platform 1, control the external winding mechanism to wind up the first lifting rope 3 and the second lifting rope 6, and the first lifting rope 3 and the second lifting rope 6 are wound up to carry the main platform 1, the folding platform 4 and the workers to climb up. After climbing to the designated position, the external winding mechanism stops winding up the first lifting rope 3 and the second lifting rope 6.

[0033] Step 2: Lower the second suspension rope 6 through the external winding mechanism. Figure 2 As shown, under the action of gravity of the folding platform 4, the folding platform 4 flips downward around the rotating shaft connected to the main platform 1 until the folding platform 4 contacts the inner wall of the boiler furnace 15. The folding platform 4 contacts the inner wall of the boiler furnace 15 through the arc block 12 to prevent the edges of the folding platform 4 from damaging the inner wall of the boiler furnace 15.

[0034] In the second step, when inspecting the narrow part of the furnace, the folding platform 4 is in a semi-expanded state, and the folding platform 4 is tilted, making it difficult for workers to stand on the folding platform 4, making it inconvenient for workers to inspect the furnace; at this time, the first electric push rod 10 is controlled to drive the rack 11 to move toward the main platform 1, and the rack 11 drives the gear 9 to rotate the first transmission shaft 7 and the pedal 8, so that the pedal 8 rotates to a horizontal state for the convenience of workers to step on, and then the workers can start to inspect the furnace. When the inner wall of the furnace needs to be inspected at close range, the workers can step on the pedal 8 and walk to the position of the folding platform 4 close to the inner wall of the furnace, and then inspect the inner wall of the furnace at close range.

[0035] In the second step, when inspecting the narrow part of the furnace, the folding platform 4 flips downward around the rotating shaft connected to the main platform 1 until the folding platform 4 contacts the inner wall of the boiler furnace 15. There is a gap between the second fence 5 on the folding platform 4 and the inner wall of the furnace. If the worker does not operate properly, there is a risk of falling from the gap. Therefore, the second electric push rod 13 is controlled to drive the blocking rod 14 to move toward the inner wall of the furnace, so that the blocking rod 14 contacts the inner wall of the furnace. In this way, the gap is blocked by the blocking rod 14, eliminating the risk of workers falling from the gap.

[0036] In the second step, the inner wall cross-section of the wide part of the furnace is columnar. When the wide part of the furnace is inspected, after the main platform 1 and the folding platform 4 are moved to the wide part of the furnace, the folding platform 4 is fully unfolded and in a horizontal state. The diameter of the wide part of the large boiler furnace 15 is greater than the combined length of the main platform 1 and the folding platform 4 after unfolding. There is a gap between the folding platform 4 and the inner wall of the furnace. Therefore, the winding mechanism is pre-connected with the external moving mechanism, and then the moving mechanism is controlled to drive the winding mechanism to move. The winding mechanism drives the main platform 1 and the folding platform 4 to move toward the inner wall of the furnace, so that the folding platform 4 contacts the inner wall of the boiler furnace 15. In this way, the worker can walk to the position where the folding platform 4 is close to the inner wall of the furnace, and then perform close inspection on the inner wall of the furnace. Maintenance; During the process of the main platform 1 and the folding platform 4 moving toward the inner wall of the furnace, the main platform 1 and the folding platform 4 shake, and there is no enclosure at the end of the folding platform 4 away from the main platform 1. When the worker accidentally slips, there is a risk of falling; therefore, before the main platform 1 and the folding platform 4 move toward the inner wall of the furnace, the worker pulls the elastic belt 31 through the fixed ring 32, and then hooks the fixed ring 32 on the opposite fixed hook 33, so that the two elastic belts 31 are crossed to form an enclosure, eliminating the risk of the worker falling from this gap. At this time, the elastic belt 31 has been pulled to the limit to prevent the worker from touching the elastic belt 31, causing the elastic belt 31 to deform, so that a gap is formed between the elastic belt 31 and the folding platform 4, and the worker falls from this gap.

[0037] Example 2

[0038] On the basis of Example 1, Figure 2-5 As shown, it also includes a second transmission shaft 21, a first mounting plate 22, a first light strip 23 and a second light strip 25; each folding platform 4 is rotatably connected to one end of the main platform 1 with a second transmission shaft 21; each second transmission shaft 21 is rotatably connected to a first mounting plate 22; each first mounting plate 22 is fixedly connected to a first light strip 23 on the upper right side; each first mounting plate 22 is fixedly connected to a second light strip 25 on the upper side; the first mounting plate 22 has a built-in battery, and the first light strip 23 and the second light strip 25 are electrically connected to the battery.

[0039] Furthermore, a counterweight ball 24 is included; a counterweight ball 24 is hung on the lower part of each second transmission shaft 21 through a rope.

[0040] In the second step of Example 1: In order to facilitate workers to inspect the inner wall of the furnace, a first light strip 23 and a second light strip 25 are provided at one end of the folding platform 4 away from the main platform 1. When inspecting the narrow part of the inner wall of the furnace, the first light strip 23 is powered by the built-in battery of the first mounting plate 22, so that it emits light to illuminate the inner wall of the furnace; workers can manually rotate the first mounting plate 22 and the first light strip 23 so that the first light strip 23 is parallel to the inner wall of the furnace. In this way, the first light strip 23 irradiates light parallel to the inner wall of the furnace, which can increase the contrast between the crack and the surrounding wall, so that even if the crack is very small, it can be seen The contrast between light and shadow becomes more obvious, making it easier to find the existence of cracks, and there is no need for workers to continuously hold a flashlight to illuminate the inner wall of the furnace to find cracks, thereby reducing hand fatigue of workers during maintenance; when the folding platform 4 flips downward around the rotating shaft connected to the main platform 1, the second transmission shaft 21, the first mounting plate 22, the first light strip 23 and the counterweight ball 24 rotate accordingly. Due to the gravity of the counterweight ball 24, the counterweight ball 24 will rotate with the second transmission shaft 21, the first mounting plate 22 and the first light strip 23, so that the first light strip 23 is always parallel to the inner wall of the furnace, making it easier to find the existence of cracks.

[0041] When inspecting the wide part of the inner wall of the furnace, since the cross-section of the inner wall of the wide part of the furnace is cylindrical, the light emitted by the first light strip 23 cannot be parallel to the inner wall of the furnace, which is not conducive to finding cracks; at this time, the built-in battery of the first mounting plate 22 is used to power the second light strip 25, so that it emits vertically upward light to illuminate the inner wall of the furnace, and the emitted light is parallel to the inner wall of the furnace, which is more conducive to finding cracks.

[0042] Example 3

[0043] On the basis of Example 2, Figure 3-5 As shown, it also includes a second mounting plate 41, a third electric push rod 42 and an electromagnetic suction cup 43; a plurality of second mounting plates 41 symmetrically arranged front and rear are welded on each folding platform 4; a third electric push rod 42 is fixedly connected to each second mounting plate 41; and the telescopic end of each third electric push rod 42 is rotatably connected to an electromagnetic suction cup 43 via a torsion spring shaft.

[0044] Furthermore, in order to facilitate the electromagnetic suction cup 43 to be adsorbed on the inner wall of the furnace, the lower side of the electromagnetic suction cup 43 is configured to be arc-shaped, which fits and matches the arc surface of the inner wall of the furnace.

[0045] In the second step of Example 1: in order to increase the stability of the folding platform 4 and facilitate the operation of the workers; control the third electric push rod 42 to drive the electromagnetic suction cup 43 to move toward the inner wall of the furnace, so that the electromagnetic suction cup 43 contacts the inner wall of the furnace, and then energize the electromagnetic suction cup 43 so that the electromagnetic suction cup 43 is adsorbed on the inner wall of the furnace, thereby increasing the stability of the folding platform 4. When the third electric push rod 42 drives the electromagnetic suction cup 43 to move toward the inner wall of the furnace, when the electromagnetic suction cup 43 contacts the inner wall of the furnace, as the third electric push rod 42 continues to drive the electromagnetic suction cup 43 to move toward the inner wall of the furnace, the torsion spring shaft between the telescopic end of the third electric push rod 42 and the electromagnetic suction cup 43 is compressed, and the electromagnetic suction cup 43 rotates with the inner wall of the furnace as the fulcrum, ensuring that the electromagnetic suction cup 43 is tightly adsorbed on the inner wall of the furnace.

[0046] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A high-safety boiler furnace maintenance lifting platform, comprising a main platform (1), a first fence (2), a first lifting rope (3), a folding platform (4), a second fence (5) and a second lifting rope (6); the main platform (1) is provided with a first fence (2) at the front and rear respectively; each first fence (2) is provided with a plurality of first lifting ropes (3), and the upper parts of all the first lifting ropes (3) are connected to an external winding mechanism; the left and right parts of the main platform (1) are rotatably connected to a folding platform (4) respectively; the front and rear parts of each folding platform (4) are rotatably connected to a second fence (5); each second fence (5) is provided with a second lifting rope (6), and the upper parts of all the second lifting ropes (6) are also connected to the external winding mechanism; characterized in that It also comprises a first transmission shaft (7), a pedal (8), a gear (9), a first electric push rod (10) and a rack (11); each folding platform (4) is rotatably connected to a plurality of first transmission shafts (7); each first transmission shaft (7) is fixedly connected to a pedal (8); a gear (9) is fixedly connected to the front of each first transmission shaft (7); a first electric push rod (10) is fixedly connected to the lower side of each folding platform (4); a rack (11) is fixedly connected to the telescopic end of each first electric push rod (10); all gears (9) on the same folding platform (4) are meshed with the corresponding rack (11); It also includes a second electric push rod (13) and a blocking rod (14); a plurality of second electric push rods (13) are respectively arranged on each second fence (5); a blocking rod (14) is respectively fixedly connected to the telescopic end of each second electric push rod (13); and each blocking rod (14) is slidably connected to the corresponding second fence (5).

2. A high-safety boiler furnace maintenance lifting platform according to claim 1, characterized in that: The upper side of the pedal (8) is made of silicone rubber and is provided with a plurality of grooves.

3. A high-safety boiler furnace maintenance lifting platform according to claim 1, characterized in that: It also includes an arc-shaped block (12); a plurality of arc-shaped blocks (12) are respectively arranged at one end of each folding platform (4) away from the main platform (1).

4. A high-safety boiler furnace maintenance lifting platform according to claim 3, characterized in that: One end of each blocking rod (14) away from the main platform (1) is connected to a universal ball.

5. A high-safety boiler furnace maintenance lifting platform according to claim 3, characterized in that: It also includes an elastic band (31), a fixing ring (32) and a fixing hook (33); each second fence (5) is fixedly connected to an elastic band (31) on one side away from the main platform (1); each second fence (5) is fixedly connected to a fixing hook (33) on one side away from the main platform (1); each elastic band (31) is fixedly connected to a fixing ring (32) at the lower part; and the fixing hook (33) is located below the fixing ring (32).

6. A high-safety boiler furnace maintenance lifting platform according to claim 5, characterized in that: It also comprises a second transmission shaft (21), a first mounting plate (22), a first light strip (23) and a second light strip (25); one end of each folding platform (4) away from the main platform (1) is rotatably connected to a second transmission shaft (21); each second transmission shaft (21) is rotatably connected to a first mounting plate (22); a first light strip (23) is fixedly connected to the upper right side of each first mounting plate (22); a second light strip (25) is fixedly connected to the upper side of each first mounting plate (22); the first mounting plate (22) has a built-in battery, and the first light strip (23) and the second light strip (25) are both electrically connected to the battery.

7. A high-safety boiler furnace maintenance lifting platform according to claim 6, characterized in that: It also includes a counterweight ball (24); a counterweight ball (24) is suspended from the lower part of each second transmission shaft (21) via a rope.

8. A high-safety boiler furnace maintenance lifting platform according to claim 7, characterized in that: It also includes a second mounting plate (41), a third electric push rod (42) and an electromagnetic suction cup (43); each folding platform (4) is respectively fixedly connected to a plurality of second mounting plates (41); each second mounting plate (41) is respectively fixedly connected to a third electric push rod (42); and the telescopic end of each third electric push rod (42) is respectively rotatably connected to an electromagnetic suction cup (43) via a torsion spring rotating shaft.

9. A high-safety boiler furnace maintenance lifting platform according to claim 8, characterized in that: The lower side of the electromagnetic suction cup (43) is arranged in an arc shape, which fits and matches the arc surface of the inner wall of the furnace.

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