A ladder for boiler maintenance

Abstract

The utility model relates to a boiler maintenance ladder, aiming to solve the technical problem that the current boiler maintenance ladder has a relatively poor protective effect on operators, and operators are prone to accidentally slipping and falling when climbing down or up the ladder. The utility model comprises two ladder side plates, and the sides of the two ladder side plates are both provided with track grooves, the inside of the track grooves is connected with a slider through a guide rod, the other end of the slider is connected with a movable column through a supporting column, the movable column is connected with a tension spring through a built-in groove, the other end of the movable column is connected with a handle through a baffle, one side of the baffle is provided with an arc groove, and one end of the ladder side plate is connected with a stopper through a mounting groove. The utility model avoids the phenomenon that operators accidentally slip and fall when climbing on the ladder, and compared with traditional climbing lock buckles, the operator does not need to manually adjust the climbing lock buckle after each block before continuing to climb.

Description

Technical Field

[0001] The utility model relates to the field of ladders, in particular to a ladder for boiler maintenance. Background Art

[0002] A boiler is a device that burns fuel to convert the chemical energy in it into heat energy, and transfers this heat energy to the working fluid or water, turning the working fluid into steam or hot water with a certain pressure and temperature. During use, the boiler is continuously exposed to the erosion and corrosion of flames, flue gas, ash (slag), water, and steam for a long time, and leakage, wear, deformation, corrosion, aging and other phenomena are inevitable. Therefore, it is necessary to regularly inspect and maintain the boiler and auxiliary equipment, timely discover and eliminate the hidden dangers of the equipment, replace or repair damaged parts, and ensure the normal and safe operation of the boiler. Due to the large size of the boiler, some of the boiler accessories are set on the top of the boiler. When inspecting and maintaining the boiler or when some accessories on the boiler equipment are damaged, it is necessary to climb the ladder to the operating platform on the top of the boiler.

[0003] According to the published patent 202321393783.5, a ladder for boiler maintenance includes a ladder assembly, a lifting assembly and a connecting assembly; the lifting assembly is arranged on the ladder assembly, and the lifting assembly is meshed and connected with the rack structure arranged on the ladder assembly through a gear structure; one end of the connecting assembly is fixedly connected to the operating platform, and the other end is rotatably connected to the upper end of the ladder assembly, a gas spring is arranged between the connecting assembly and the ladder assembly, and the lifting assembly controls the lower end of the ladder assembly to abut or separate from the ground. In the process of realizing the utility model, the inventor found that there are at least the following in the prior art: The problem has not been solved. By adding a connecting component, the device can be adjusted and fixed in angle when in use. The commonly used ladder is fixed at the bottom end on the boiler base and the top end on the operating platform. The ladder is almost vertical and inconvenient to climb. The ladder does not have the function of preventing non-technical personnel from climbing, which makes it easy for non-technical personnel to reach the operating platform through the ladder, affecting the normal use of the boiler. During use, the traditional boiler maintenance ladder has a relatively poor protective effect on the operator, and the operator is prone to accidentally slipping and falling when climbing down or up the ladder. For this reason, a new technical solution needs to be designed to solve the problem. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art, meet actual needs, and provide a boiler maintenance ladder to solve the technical problem that the current boiler maintenance ladder has a relatively poor protective effect on operators and operators are prone to accidentally slipping and falling when climbing down or up the ladder.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a ladder for boiler maintenance, including two ladder side panels, the sides of the two ladder side panels are provided with track grooves, the inside of the track groove is connected with a slider through a guide rod, the other end of the slider is connected with a movable column through a support column, the movable column is connected with a tension spring through a built-in groove, the other end of the movable column is connected with a handle through a baffle, one side of the baffle is provided with an arc groove, one end of the ladder side panel is connected with a block through an installation groove, and the inside of the block is connected with a reset spring through a groove.

[0006] Preferably, a plurality of treadle columns are fixedly connected between the two ladder side plates, and a handrail is also fixedly connected to the surfaces of the two ladder side plates.

[0007] Preferably, the two baffles are connected to a protective bandage via a drawstring, one end of the drawstring is fixedly connected to a hanging ear of the baffle, and the other end of the drawstring is fixedly connected to a side of the protective bandage.

[0008] Preferably, both ends of the guide rod are fixedly connected to the inner wall of the track groove, and one end of the sliding block is sleeved on the outside of the guide rod and is slidably connected to the inner wall of the track groove.

[0009] Preferably, one end of the support column is fixedly connected to the other end of the slider, the other end of the support column is slidably connected to the outside of one end of the movable column, the built-in groove is located inside the movable column, one end of the tension spring is fixedly connected to the inner wall of the built-in groove, and the other end of the tension spring is fixedly connected to the inside of the support column.

[0010] Preferably, the size of the stopper matches that of the mounting groove and is slidably connected to the inner wall thereof; one side of the stopper is planar and the other side of the stopper is arc-shaped.

[0011] Preferably, the groove is located inside one end of the block, one end of the return spring abuts against the inner wall of the mounting groove, and the other end of the return spring abuts against the inner wall of the groove. There are multiple mounting grooves, which are evenly distributed at one end of the ladder side plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model combines a track groove, a guide rod, a slider, a support column, a movable column, a built-in groove, a tension spring, a baffle, a handle, an arc groove, an installation groove, a block, a groove, a reset spring, a pull rope and a protective bandage. When an operator climbs up the ladder, the protective bandage is first tied to the waist and thigh. During the ascending process, the protective bandage pulls the baffle through the pull rope. At this time, the baffle drives the slider to slide on the guide rod inside the track groove through the movable column and the support column. When the baffle passes the block, the arc groove on the baffle moves from the arc surface on one side of the block. At this time, the block will be The baffle is compressed into the inside of the installation groove and squeezes the reset spring. When the baffle passes the block, the reset spring will generate elastic force on the block, so that the block moves out of the installation groove and resets. When the operator accidentally slips off the ladder, the protective bandage will drive the baffle to instantly press against the block through the pull rope, thereby limiting the baffle, thereby avoiding the operator from accidentally slipping and falling when climbing the ladder. Compared with the traditional climbing lock buckle, the operator does not need to manually adjust the climbing lock buckle after each block before continuing to climb;

[0014] When the operator goes down on the ladder, the operator pulls the carrying handle toward the position of the carrying handle while holding the handrail, and the carrying handle moves with the position of the operator holding the handrail. At this time, the baffle on the carrying handle will drive the movable column to move out of the supporting column, and the movable column will stretch the tension spring so that the baffle is out of the limiting range of the block, and the carrying handle drives the slider to slide downward on the guide rod in the track groove through the baffle, the supporting column and the movable column. When the operator accidentally slips off the ladder, the operator's hand only needs to leave the handrail. At this time, the tension spring will drive the movable column to shrink into the inside of the supporting column, so that the baffle is against the baffle, thereby achieving automatic limitation of the position of the baffle in the first time, further preventing the operator from accidentally slipping and falling when climbing down the ladder, thereby improving the safety of the operator during the ascending or descending process of the ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the baffle structure of the utility model;

[0017] Figure 3 It is a cross-sectional view of the support column and the movable column of the utility model;

[0018] Figure 4 It is a cross-sectional view of the side plate of the ladder of the utility model;

[0019] In the figure: 1. Ladder side plate; 11. Track groove; 12. Guide rod; 13. Slider; 14. Support column; 15. Movable column; 16. Built-in groove; 17. Tension spring; 18. Baffle; 19. Handle; 20. Arc groove; 21. Mounting groove; 22. Block; 23. Groove; 24. Reset spring; 25. Pedal column; 26. Handrail; 27. Pull rope; 28. Protective bandage. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0021] Example 1: A boiler maintenance ladder, see Figures 1 to 4, including two ladder side plates 1, the sides of the two ladder side plates 1 are provided with track grooves 11, the inside of the track groove 11 is connected with a slider 13 through a guide rod 12, both ends of the guide rod 12 are fixedly connected to the inner wall of the track groove 11, one end of the slider 13 is sleeved on the outside of the guide rod 12 and is slidably connected to the inner wall of the track groove 11, the other end of the slider 13 is connected to a movable column 15 through a support column 14, one end of the support column 14 is fixedly connected to the other end of the slider 13, the other end of the support column 14 is slidably connected to the outside of one end of the movable column 15, and the other end of the movable column 15 is connected to the outer side of the movable column 15 through a baffle 18 A handle 19 is connected, an arc groove 20 is opened on one side of the baffle 18, and a stopper 22 is connected to one end of the ladder side plate 1 through a mounting groove 21. The size of the stopper 22 matches the size of the mounting groove 21 and is slidably connected to its inner wall. One side of the stopper 22 is flat, and the other side of the stopper 22 is arc-shaped. A return spring 24 is connected to the inside of the stopper 22 through a groove 23. The groove 23 is located inside one end of the stopper 22. One end of the return spring 24 abuts against the inner wall of the mounting groove 21, and the other end of the return spring 24 abuts against the inner wall of the groove 23. The mounting groove 21 is provided with a plurality of And evenly distributed at one end of the ladder side plate 1, when the operator climbs up the ladder, first tie the protective bandage 28 around the waist and thighs, and during the ascent, the protective bandage 28 will pull the baffle 18 through the pull rope 27, and then the baffle 18 will drive the slider 13 to slide on the guide rod 12 inside the track groove 11 through the movable column 15 and the support column 14, and when the baffle 18 passes the block 22, the arc groove 20 on the baffle 18 will move from the arc surface on one side of the block 22, and then the block 22 will be compressed into the inside of the installation groove 21, and squeeze the reset spring 24 When the baffle 18 passes the block 22, the reset spring 24 will generate elastic force on the block 22, so that the block 22 moves out of the installation groove 21, thereby resetting. When the operator accidentally slips off the ladder, the protective bandage 28 will drive the baffle 18 to instantly press against the block 22 through the pull rope 27, so as to limit the baffle 18, so as to avoid the operator accidentally slipping and falling when climbing on the ladder. Compared with the traditional climbing lock buckle, the operator does not need to manually adjust the climbing lock buckle after each block 22 before continuing to climb;

[0022] The movable column 15 is connected to a tension spring 17 through a built-in groove 16. The built-in groove 16 is located inside the movable column 15. One end of the tension spring 17 is fixedly connected to the inner wall of the built-in groove 16. The other end of the tension spring 17 is fixedly connected to the inside of the support column 14. When the operator goes down the ladder, the operator holds the handrail 26 and pulls the handle 19 to the position of the handrail 26, and the handle 19 moves with the position of the operator holding the handrail 26. At this time, the baffle 18 on the handle 19 will drive the movable column 15 to move out of the support column 14, and the movable column 15 will stretch the tension spring 17, so that the baffle 18 When the operator is out of the limit range of the stopper 22, the handle 19 drives the slider 13 to slide downward on the guide rod 12 in the track groove 11 through the baffle 18, the support column 14 and the movable column 15. When the operator accidentally slips down from the ladder, the operator's hand only needs to leave the handrail 26. At this time, the tension spring 17 will drive the movable column 15 to shrink into the inside of the support column 14, so that the baffle 18 is pressed against the baffle 18, thereby automatically limiting the position of the baffle 18 in the first time, further preventing the operator from accidentally slipping and falling when climbing down the ladder, and improving the safety of the operator when climbing up or down the ladder.

[0023] For details, see Figure 1 A plurality of stepping posts 25 are fixedly connected between the two ladder side plates 1, and a handrail 26 is also fixedly connected to the surface of the two ladder side plates 1, so that the operator can climb the ladder by holding the handrail 26.

[0024] For further information, see Figure 1 The two baffles 18 are connected with a protective bandage 28 through a pull rope 27. One end of the pull rope 27 is fixedly connected to the hanging ear of the baffle 18, and the other end of the pull rope 27 is fixedly connected to the side of the protective bandage 28, which can protect the operator when climbing on the ladder.

[0025] In addition, the components designed in the present invention are all universal standard parts or components known to technical personnel in the field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in the field, and there is no need to elaborate. The content protected by the present invention does not involve improvements to internal structures and methods.

[0026] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A boiler maintenance ladder, comprising two ladder side panels (1), characterized in that: The sides of the two ladder side plates (1) are provided with a track groove (11), the inside of the track groove (11) is connected to a slider (13) through a guide rod (12), the other end of the slider (13) is connected to a movable column (15) through a support column (14), the movable column (15) is connected to a tension spring (17) through a built-in groove (16), the other end of the movable column (15) is connected to a handle (19) through a baffle (18), one side of the baffle (18) is provided with an arc groove (20), one end of the ladder side plate (1) is connected to a stopper (22) through a mounting groove (21), and the inside of the stopper (22) is connected to a return spring (24) through a groove (23).

2. A boiler maintenance ladder as claimed in claim 1, characterized in that: A plurality of treadle columns (25) are fixedly connected between the two ladder side plates (1), and a handrail (26) is also fixedly connected to the surfaces of the two ladder side plates (1).

3. A boiler maintenance ladder as claimed in claim 1, characterized in that: The two baffles (18) are connected to a protective bandage (28) via a pull rope (27), one end of the pull rope (27) is fixedly connected to a hanging ear of the baffle (18), and the other end of the pull rope (27) is fixedly connected to a side of the protective bandage (28).

4. A boiler maintenance ladder as claimed in claim 1, characterized in that: Both ends of the guide rod (12) are fixedly connected to the inner wall of the track groove (11), and one end of the sliding block (13) is sleeved outside the guide rod (12) and is slidably connected to the inner wall of the track groove (11).

5. A boiler maintenance ladder as claimed in claim 1, characterized in that: One end of the support column (14) is fixedly connected to the other end of the slider (13), the other end of the support column (14) is slidably connected to the outside of one end of the movable column (15), the built-in groove (16) is located inside the movable column (15), one end of the tension spring (17) is fixedly connected to the inner wall of the built-in groove (16), and the other end of the tension spring (17) is fixedly connected to the inside of the support column (14).

6. A boiler maintenance ladder as claimed in claim 1, characterized in that: The size of the stopper (22) matches that of the installation groove (21) and is slidably connected to the inner wall thereof; one side of the stopper (22) is planar and the other side of the stopper (22) is arc-shaped.

7. A boiler maintenance ladder as claimed in claim 1, characterized in that: The groove (23) is located inside one end of the stopper (22), one end of the return spring (24) abuts against the inner wall of the mounting groove (21), and the other end of the return spring (24) abuts against the inner wall of the groove (23), and a plurality of mounting grooves (21) are provided and are evenly distributed at one end of the ladder side plate (1).

Images