Ladder fixing device

Abstract

The invention discloses a ladder fixing device, and relates to the technical field of ladder supporting components. The ladder fixing device comprises a ratchet wheel tightening device, a rope belt and anti-skid rubber, and the ratchet wheel tightening device is fixed to a ladder and used for tightening or adjusting the rope belt; the rope belt is tightened and fixed through the ratchet tightening device after being wound on a fixed object, and the inclination angle of the ladder can be adjusted by adjusting the tightening degree of the rope belt; and the anti-skid rubber is used for increasing the friction force between the ladder and the contact surface. According to the invention, the ladder can be stably placed in various environments by adopting the combination of two fixing modes of contacting the rubber with the cross arm and fixing the ratchet wheel tightening device by the rope belt and adopting the anti-skid design, so that the potential safety hazard caused by shaking, sliding or inclining of the ladder is reduced, and the construction safety is improved. Meanwhile, adjustment can be carried out according to ladders of different shapes and sizes and angle steel and electric pole fixing points, various requirements of the transformer substation in the complex working environment can be met, and the transformer substation can be widely applied to different installation and maintenance scenes.

Description

Technical Field

[0001] The invention belongs to the technical field of ladder supporting components, and in particular relates to a ladder fixing device. Background Art

[0002] Ladders are commonly used tools in the installation and maintenance of substations, but there are many problems with their use. When traditional ladders are used in substations, the ground may be uneven and difficult to place stably, which affects construction efficiency and increases safety risks. The angle between the ladder and the ground is difficult to accurately determine, which can easily lead to tilting and poor stability. Daily use usually requires special support, which increases labor costs and may cause safety accidents due to human factors. At the same time, existing anti-slip measures are not effective on slippery or oily ground and cannot effectively prevent sliding. When construction workers climb up and down to transfer positions, the frequent use of safety belts and double anti-fall safety belts is time-consuming and cannot fully guarantee the safety of ladders and personnel falling at the same time.

[0003] In the prior art, there is a lack of a ladder fixing device that can effectively solve the above problems. Most ladders are fixed in a simple way and cannot adapt to the complex environment of substations and the requirements of different working scenarios. For example, they cannot simultaneously meet the requirements of stable fixing in a cross-arm structure and a conventional pole-shaped environment, and it is difficult to achieve fast, convenient and safe fixing and height and angle adjustment functions, and there are deficiencies in anti-slip. Summary of the invention

[0004] The purpose of the present invention is to provide a ladder fixing device, which combines two fixing methods: rubber contact with crossarm and rope fixing ratchet tightening device, to overcome the problem that the ladder fixing device in the prior art is not suitable for the complex environment of substations and cannot simultaneously meet the requirements of convenient, safe and stable fixation in environments with crossarm structures and conventional poles.

[0005] The specific technical solutions are as follows:

[0006] A ladder fixing device comprises a ratchet tightening device, a rope belt and an anti-slip adhesive;

[0007] The ratchet tightening device is fixed on the ladder and is used to tighten or adjust the rope;

[0008] At least one end of the rope is fixed to the ladder through the ratchet tightening device. When in use, the rope is wound around a fixed object and then tightened and fixed through the ratchet tightening device. The inclination angle of the ladder can be adjusted by adjusting the tightening degree of the rope;

[0009] The anti-skid rubber includes cross-arm anti-skid rubber and end anti-skid rubber. The cross-arm anti-skid rubber is arranged on the column of the ladder, and the end anti-skid rubber is arranged at the bottom and / or top of the ladder. The anti-skid rubber is used to increase the friction between the ladder and the contact surface.

[0010] Preferably, the cross arm anti-skid rubber includes an anti-skid fixing plate and anti-skid rubber, the anti-skid fixing plate is detachably fixed to the column of the ladder, the anti-skid rubber is arranged parallel to the column of the ladder, both ends of the anti-skid rubber are respectively fixed to the ladder through the anti-skid fixing plate, and the side of the anti-skid rubber away from the ladder is concave-convex.

[0011] Preferably, the anti-slip fixing plate includes a first fixing plate and a second fixing plate, both ends of which are provided with connecting parts with screw holes, and the first fixing plate and the second fixing plate are surrounded by the outer periphery of the ladder column and fixed by fixing screws passing through the screw holes of the connecting parts.

[0012] Preferably, an anti-collision rubber is provided at one end of the fixing plate away from the anti-slip rubber, and one end of the first fixing plate and the second fixing plate away from the anti-slip rubber are respectively fixed to the anti-collision rubber by fixing screws.

[0013] Preferably, reinforcing wings may be provided on both sides of the anti-slip rubber, wherein the reinforcing wings are made of rubber and fixed to the anti-slip rubber by glue.

[0014] Preferably, the end anti-skid rubber sleeve is arranged on the bottom and / or top of the ladder, and the end surface of the end anti-skid rubber sleeve is concave-convex.

[0015] Preferably, the ratchet tightening device comprises a ratchet locker, a rotating latch shaft and a ratchet fixing plate, the ratchet locker is provided with the rotating latch shaft, one end of the ratchet fixing plate is hinged to the rotating latch shaft, and the other end is detachably fixed to the ladder.

[0016] Preferably, it further comprises an anti-slip cover, wherein both ends of the anti-slip cover are open, and both ends of the rope respectively pass through the two ends of the anti-slip cover.

[0017] Preferably, the anti-slip cover is made of rubber, and the inner side of the anti-slip cover is provided with diagonal lines.

[0018] Preferably, it also includes an angle gauge clamp, which is independently installed on the ladder and is used to measure the angle of the ladder.

[0019] Compared with the existing technology, the present invention has the following beneficial effects:

[0020] 1. The present invention combines two fixing methods: rubber and cross arm contact + rope fixed ratchet tightening device, as well as anti-slip design, so that the ladder can be stably placed in various environments, reducing the potential safety hazards caused by the ladder shaking, sliding or tilting, and improving construction safety. At the same time, it can be adjusted according to ladders of different shapes and sizes, as well as angle steels and pole fixing points, to meet the various needs of the complex working environment of the substation, and can be widely used in different installation and maintenance scenarios. The device has high stability and flexibility, and the ladder can be quickly and firmly fixed in various environments, providing a safe working platform for construction.

[0021] 2. The present invention arranges anti-skid glue made of high-quality materials such as rubber and having convex shapes or textures on the bottom, upper part and top of the ladder, and utilizes the high friction coefficient and special texture of the material to make the anti-skid glue fit tightly to the ground. Whether it is on a dry, wet, oily ground or a place with a certain slope, it can generate sufficient friction to resist external forces. Even when it is under vertical pressure generated by the weight of people and tools, it can effectively prevent the ladder from being displaced in the horizontal and vertical directions, providing reliable safety protection for the entire construction process and ensuring the smooth operation of the substation.

[0022] 3. The ratchet locking function of the present invention can realize precise and flexible adjustment of the height and angle of the ladder to meet the diverse operational requirements of the substation. The special tooth shape and meshing angle design of the ratchet tightening device, combined with the anti-reversal device, ensure that the rope position is locked under large tension and external interference, so that the ladder is evenly and firmly stressed. This function allows construction workers to easily reach the working height and adjust to the appropriate working angle, improve work efficiency, reduce fatigue and safety risks, and the device is made of high-strength metal to adapt to long-term operation in complex environments.

[0023] 4. The present invention uses positioning screws for installation, which does not require complicated installation processes and a lot of modification work. The ratchet tightening device can quickly adjust the height and angle of the ladder, and the rope is easy to fix, which saves construction time and improves work efficiency. At the same time, there is no need for a special person to support the ladder, which reduces manpower input, improves the degree of automation of construction, and reduces the impact of human factors on construction safety and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0025] Figure 1 It is the use effect diagram of the present invention.

[0026] Figure 2 It is an enlarged view of point A of the present invention.

[0027] Figure 3 It is an enlarged view of B of the present invention.

[0028] Figure 4 It is a schematic diagram of the structure of the ratchet tightening rope of the present invention.

[0029] Figure 5 It is a structural schematic diagram of the angle gauge clamp of the present invention.

[0030] Figure 6 It is a structural schematic diagram of the present invention and the cross arm anti-skid rubber.

[0031] Description of main reference numerals:

[0032] 1. Ratchet tightening device; 11. Ratchet locker; 12. Rotating latch shaft; 13. Ratchet fixing plate; 14. Anti-collision rubber; 15. Fixing screw; 2. Rope; 3. Cross arm anti-skid rubber; 31. Anti-skid fixing plate; 32. Anti-skid rubber; 4. End anti-skid rubber; 5. Angle table clamp; 51. Angle fixing plate; 52. Angle plate; 6. Ladder; 7. Cross arm; 8. Anti-skid sleeve; 9. Electric pole. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0035] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of the embodiments of the present invention based on its overall structure.

[0037] like Figure 1 As shown, during the installation and maintenance work of the substation, the ladder 6 needs to be placed and fixed in different positions, that is, there will be medium voltage cross arm operations and conventional pole-shaped ladder operations as shown in the figure. The following is an illustration of the present ladder 6 fixing device using the conventional pole-shaped ladder 6 operation. The present ladder 6 fixing device includes a ratchet tightening device 1, a rope 2, an anti-skid rubber and an angle table clamp 5. The anti-skid rubber includes a cross arm anti-skid rubber 3 and an end anti-skid rubber 4.

[0038] The ratchet tightening device 1 can be directly connected to the ladder 6 (such as connected to the ladder beam by means of a clip, a clamp, etc.) or connected to other auxiliary components and then cooperated with the ladder 6 to achieve adjustment of the position or state of the ladder 6, for example, by cooperating with ropes and other components, the inclination angle of the ladder 6 can be adjusted.

[0039] The angle gauge clamp 5 can be independently installed at a suitable position of the ladder 6, such as a ladder beam, etc., to measure the angle of the ladder 6.

[0040] The anti-skid rubber 32 is used to increase the friction between the ladder 6 and the contact surface, and provides a fixed support for the ladder 6. The cross arm anti-skid rubber 3 is generally arranged at the middle and upper part of the ladder 6 to increase the friction between the ladder 6 and the cross arm 7. The end anti-skid rubber 4 is sleeved on the bottom of the ladder 6 (sometimes also on the top according to the usage scenario) to increase the friction between the ladder 6 and the ground.

[0041] The present invention combines two fixing methods, namely, the contact between rubber and crossarm 7 and the fixing of ratchet tightening device 1 by rope 2, as well as anti-slip design, so that ladder 6 can be stably placed in various environments, reducing the potential safety hazards caused by shaking, sliding or tilting of ladder 6, and improving construction safety.

[0042] Combination Figure 2-3In the enlarged view at A, a ratchet tightening device 1 and a cross arm anti-skid rubber 3 are respectively provided, and in the enlarged view at B, a ratchet tightening device 1 and an angle gauge clamp 5 are respectively provided. That is, multiple sets of ratchet tightening devices 1 can be provided according to actual use requirements to increase the stability of the ladder 6. The ratchet tightening device 1 can be used to fix the ladder 6 to the pole 9 by horizontally embracing according to different use scenarios. It can also be as Figure 1 The fixing mode when the middle-middle pressure cross arm 7 ladder 6 is operated, namely by vertically embracing the ladder 6 and the cross arm 7 etc. are fixed. In other embodiments, the ladder 6 and the cross arm 7 etc. can also be fixed by obliquely embracing.

[0043] Combination Figure 4 The ratchet tightening device 1 includes a ratchet locker 11, a rotating bolt shaft 12, a ratchet fixing plate 13, an anti-collision rubber 14 and a fixing screw 15. The ratchet locker 11 is provided with the rotating bolt shaft 12. In this embodiment, the ratchet fixing plate 13 has two pieces, namely, a first fixing plate and a second fixing plate. The first fixing plate and the second fixing plate are fixed after being wrapped around the outer periphery of the ladder 6 column. Specifically, one end of the first fixing plate is hinged to the rotating bolt shaft 12, and the other end is fixed to the anti-collision rubber 14. One end of the second fixing plate is fixed to the first fixing plate near the end of the rotating bolt shaft 12 by a fixing screw, and the other end of the second fixing plate is fixed to the anti-collision rubber 14. The anti-collision rubber 14 is provided with a groove to facilitate the insertion and fixing of the fixing plate. The first fixing plate and the second fixing plate are detachably fixed by fixing screws 15, and can be adjusted and fixed according to the size of the ladder 6 column, and have strong applicability. The ratchet fixing plate 13 is hinged to the rotating bolt shaft 12, which can improve the flexibility of fixing. The ratchet locker 11 is a purchased component, including a pawl, ratchet teeth, spring and other structures. Its special tooth shape and meshing angle design, combined with the anti-reversal device, ensure that the rope position is locked under large tension and external interference, so that the ladder 6 is evenly and firmly stressed. In this solution, the ratchet tightening device 1 is respectively set on the two columns of the ladder 6 and fixed to the pole 9 through the rope belt 2. Figure 2 or Figure 3 The middle part of the rope 2 is wrapped around the pole 9, and the two ends are fixed to the ladder 6 through the ratchet tightening device 1, so as to fix the ladder 6 to the pole 9. Preferably, the outer side of the rope 2 is covered with an anti-slip cover 8, and the two ends of the anti-slip cover 8 are open, and the two ends of the rope 2 pass through the two ends of the anti-slip cover 8. The anti-slip cover 8 can be a rubber cover with concave and convex patterns, which can increase the friction between the rope 2 and the pole 9, increase the toughness of the rope 2, and improve the safety of the rope 2.

[0044] Combination Figure 5The angle gauge clamp 5 includes two angle fixing plates 51, an anti-collision rubber 14 and an angle disc 52. The two angle fixing plates 51 are respectively opened on both sides of the ladder 6. The two ends of the two angle fixing plates 51 are respectively fixed by fixing screws 15, and one end is also provided with the anti-collision rubber 14. The angle disc 52 is arranged on the outside of one of the angle fixing plates 51, and the angle disc 52 is provided with an angle disc adjustment screw. The angle gauge clamp 5 can be purchased from the market and independently installed at a suitable position of the ladder 6 to measure the angle of the ladder 6. By controlling the inclination angle of the ladder 6, the safety of high-altitude operations can be further ensured.

[0045] Combination Figure 6 , the cross arm anti-skid rubber 3 includes an anti-skid fixing plate 31, an anti-skid rubber 32 and an anti-collision rubber 14. The outer side surface of the anti-skid rubber 32 is concave-convex to increase the contact friction with external fixed objects such as the cross arm 7. The anti-skid fixing plates 31 are fixed at both ends of the anti-skid rubber 32. The structure of the anti-skid fixing plate 31 is similar to that of the ratchet fixing plate 13 of the ratchet tightening device 1. Both are fixed after being sleeved on the column of the ladder 6, and will not be described in detail here. The anti-collision rubber 14 is arranged on the anti-skid fixing plate 31 at one end away from the anti-skid rubber 32 and has an anti-collision function. When in use, the anti-skid rubber 32 is arranged vertically to generate a locking force with the cross arm 7 of the ladder 6. In some embodiments, reinforcing wings can also be provided on both sides of the anti-skid rubber 32 to further enhance the friction between the anti-skid rubber 32 and fixed objects such as the cross arm 7. The reinforcing wings can be made into a triangle, trapezoid or other shapes, and can also be arranged up and down, respectively clamped on the upper and lower surfaces of fixed objects such as the cross arm 7, so as to enhance the friction force from multiple angles.

[0046] In addition, the end anti-skid rubber 4 made of high-quality materials such as rubber and with a convex shape or texture is set at the bottom and top of the ladder 6. The high friction coefficient and special texture of the material are used to make the end anti-skid rubber 4 fit closely with the ground. Whether it is on a dry, wet, oily ground or a place with a certain slope, it can generate sufficient friction to resist external forces. Even when it is subjected to the vertical pressure generated by the weight of personnel and tools, it can effectively prevent the horizontal and vertical displacement of the ladder 6, providing reliable safety protection for the entire construction process and ensuring the smooth operation of the substation. Specifically, the end anti-skid rubber 4 can be set on the bottom and fixed part of the ladder 6, and if necessary, it can be further fixed by glue. The end of the end anti-skid rubber 4 can be set to an arc, which can increase the contact between the arc end anti-skid rubber 4 and the ground, especially when encountering potholes, it can also be well fixed. The arc end anti-skid rubber 4 can also be set to different thicknesses, and the end anti-skid rubber 4 of different thicknesses can be selected according to the ground conditions for anti-skid.

[0047] In other embodiments, the ladder 6 fixing device further includes a spring lock and a pull rope, which play the role of auxiliary fixing, adjustment or safety protection in the device. For example, the pull rope can be connected with other components, and the restraint or control of certain parts of the ladder 6 can be achieved by locking and unlocking the spring lock. When in use, the operator pulls the rope belt 2, and with the help of the pulley and other connecting structures, the ratchet pawl of the ratchet tightening device 1 overcomes the spring elastic force and disengages from the ratchet teeth. At this time, the damping device controls the rope extension speed for easy adjustment. After the rope is in place, the spring of the ratchet tightening device 1 pushes the ratchet pawl to engage the ratchet teeth to achieve the fixation of the ratchet tightening device 1, which is convenient to operate.

[0048] As shown in FIG1 , after the fixing plate of the ladder 6 fixing device is put on the ladder 6 column, it can be fixed by fixing screws 15 to complete the installation. The installation is convenient and does not require complicated installation processes and a lot of modification work. The special tooth shape and meshing angle design of the ratchet tightening device 1, combined with the anti-reversal device, ensure that the rope position is locked under large tension and external interference, so that the ladder 6 is evenly and firmly stressed. This function allows construction workers to easily reach the working height and adjust to the appropriate working angle, improve work efficiency, reduce fatigue and safety risks, and the device is made of high-strength metal to adapt to long-term operation in complex environments.

[0049] In summary, the present invention adopts a combination of two fixing methods: rubber contact with cross arm 7 + rope belt 2 fixing ratchet tightening device 1, as well as anti-slip design, so that ladder 6 can be stably placed in various environments, reducing the potential safety hazards caused by shaking, sliding or tilting of ladder 6, and improving construction safety. At the same time, it can be adjusted according to the different shapes and sizes of ladder 6 and angle steel, pole 9 fixing points, which can meet various needs in the complex working environment of substations and can be widely used in different installation and maintenance scenarios.

[0050] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed without departing from the principles and purpose of the present invention after reading this specification, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A ladder fixing device, characterized in that: Includes ratchet tightening device, rope strap and anti-slip glue; The ratchet tightening device is fixed on the ladder and is used to tighten or adjust the rope; At least one end of the rope is fixed to the ladder through the ratchet tightening device. When in use, the rope is wound around a fixed object and then tightened and fixed through the ratchet tightening device. The inclination angle of the ladder can be adjusted by adjusting the tightening degree of the rope; The anti-skid rubber includes cross-arm anti-skid rubber and end anti-skid rubber. The cross-arm anti-skid rubber is arranged on the column of the ladder, and the end anti-skid rubber is arranged at the bottom and / or top of the ladder. The anti-skid rubber is used to increase the friction between the ladder and the contact surface.

2. A ladder fixing device according to claim 1, characterized in that: The cross arm anti-skid rubber includes an anti-skid fixing plate and anti-skid rubber. The anti-skid fixing plate is detachably fixed to the column of the ladder. The anti-skid rubber is arranged parallel to the column of the ladder. Both ends of the anti-skid rubber are respectively fixed to the ladder through the anti-skid fixing plate. The side of the anti-skid rubber away from the ladder is concave-convex.

3. A ladder fixing device according to claim 2, characterized in that: The anti-slip fixing plate includes a first fixing plate and a second fixing plate. Both ends of the first fixing plate and the second fixing plate are provided with connecting parts with screw holes. The first fixing plate and the second fixing plate are surrounded by the outer circumference of the ladder column and fixed by fixing screws passing through the screw holes of the connecting parts.

4. A ladder fixing device according to claim 3, characterized in that: An anti-collision rubber is arranged at one end of the fixing plate away from the anti-slip rubber, and one end of the first fixing plate and the second fixing plate away from the anti-slip rubber are respectively fixed to the anti-collision rubber by fixing screws.

5. A ladder fixing device according to claim 2, characterized in that: Reinforcement wings may also be arranged on both sides of the anti-slip rubber. The reinforcement wings are made of rubber and fixed to the anti-slip rubber by glue.

6. A ladder fixing device according to claim 2, characterized in that: The end anti-skid rubber sleeve is arranged on the bottom and / or the top of the ladder, and the end surface of the end anti-skid rubber is concave-convex.

7. A ladder fixing device according to claim 1, characterized in that: The ratchet tightening device comprises a ratchet locker, a rotating latch shaft and a ratchet fixing plate. The ratchet locker is provided with the rotating latch shaft. One end of the ratchet fixing plate is hinged to the rotating latch shaft and the other end is detachably fixed to the ladder.

8. A ladder fixing device according to claim 1, characterized in that: It also includes an anti-slip cover, with two ends of the anti-slip cover opened, and two ends of the rope respectively pass through the two ends of the anti-slip cover.

9. A ladder fixing device according to claim 8, characterized in that: The anti-slip cover is made of rubber, and the inner side of the anti-slip cover is provided with diagonal lines.

10. A ladder fixing device according to claim 1, characterized in that: It also includes an angle gauge clamp, which is independently installed on the ladder and is used to measure the angle of the ladder.

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