Anti-tip safety ladder

Abstract

The application discloses an anti-toppling safety ladder, which comprises a safety ladder body, an anti-toppling fixing ring and a driving device, wherein the anti-toppling fixing ring and the driving structure are arranged on the safety ladder body; the driving device is connected with the anti-toppling fixing ring and enables the anti-toppling fixing ring to have a first state and a second state, in the first state, the anti-toppling fixing ring is provided with an opening, and in the second state, the anti-toppling fixing ring is closed. The anti-toppling safety ladder is switched between the first state and the second state through the anti-toppling fixing ring which can be controlled by the driving device. The anti-toppling fixing ring is connected with the safety ladder body, which effectively prevents the ladder body from sliding or toppling, thereby avoiding falling accidents from high places.

Description

Technical Field

[0001] This utility model relates to the field of safety tool technology, and in particular to an anti-tipping safety ladder. Background Technology

[0002] Safety ladders are an indispensable piece of equipment for working at heights, used when climbing utility poles or working in workshops. Preventing them from tipping over and securing them is extremely important for ensuring safety.

[0003] In existing technologies, workers typically need to climb to a height to secure the ladder against tipping, which poses a risk of tipping before securing it. Furthermore, the construction ladders used for climbing poles and their operation are complex. Workers must first install the anti-tipping device on the ladder before erecting it, which is difficult to do if the working space is not spacious enough. Moreover, there is a risk of tipping before securing the anti-tipping device after climbing, and the use of screws for securing it is also quite complicated. Utility Model Content

[0004] This utility model is an anti-tipping safety ladder. When working at height, the ladder can use fixed pipes at a high place to prevent safety accidents caused by the ladder slipping or tilting.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model provides an anti-tipping safety ladder, including a safety ladder body, an anti-tipping fixing ring, and a driving device. The anti-tipping fixing ring and the driving device are disposed on the safety ladder body. The driving device is connected to the anti-tipping fixing ring, so that the anti-tipping fixing ring has a first state and a second state. In the first state, an opening is formed on the anti-tipping fixing ring, and in the second state, the anti-tipping fixing ring is closed.

[0006] Furthermore, the anti-tipping fixing ring is disposed on the top of the safety ladder body, and the plane where the anti-tipping fixing ring is located forms an angle with the plane where the safety ladder body is located.

[0007] Furthermore, the anti-tipping fixing ring includes a fixing part and a sliding part, both of which are arranged in an arc shape. The fixing part is fixed to the safety ladder body, and the sliding part is slidably disposed on the fixing part. The two ends of the sliding part are formed with a connecting end and a free end. The connecting end of the sliding part extends into the fixing part, and the free end of the sliding part can selectively extend into the fixing part or protrude outside the fixing part. The driving device is connected to the sliding part to drive the sliding part to move.

[0008] Furthermore, the connecting end of the sliding part is also provided with a protruding limiting part to prevent the sliding part from falling out of the fixed part.

[0009] Furthermore, the anti-tipping safety ladder also includes a locking structure, which is disposed on the safety ladder body to lock the anti-tipping fixing ring when the anti-tipping fixing ring is in the second state, so as to prevent the sliding part from moving relative to the fixing part.

[0010] Furthermore, the locking structure includes a pin, a first through hole is provided on the safety ladder body and the fixed part, and a second through hole is provided on the sliding part. The pin passes through the first through hole and extends into the second through hole to fix the sliding part in the fixed part.

[0011] Furthermore, the second through hole can be provided at the free end of the sliding part, and there can be multiple second through holes, which are spaced apart along the circumference of the sliding part.

[0012] Furthermore, the locking structure also includes a wrench, a connecting rod, a support column, a rocker arm, and an elastic element. The wrench is hinged to the safety ladder body. One end of the connecting rod is hinged to the wrench, and the other end is hinged to the pin. The support column is disposed on the safety ladder body. The middle part of the rocker arm is hinged to the support column. The elastic element is connected between one end of the rocker arm and the safety ladder body, and the other end is connected to the pin.

[0013] Furthermore, an anti-slip frame is provided inside the anti-tipping fixing ring. The anti-slip frame includes a connecting frame and an anti-slip layer disposed on the connecting frame. There are at least two anti-slip frames, which are arranged opposite each other. Both ends of each anti-slip frame are connected to the inner ring of the fixing part. An angle is formed between the two anti-slip frames. The anti-slip layer covers the outside of the connecting frame.

[0014] Furthermore, the driving device includes a lower transmission assembly, an upper transmission assembly, and a transmission chain. The lower transmission assembly and the upper transmission assembly are disposed on the safety ladder body. The transmission chain connects the upper transmission assembly and the lower transmission assembly. The lower transmission assembly is provided with a crank and a first rotating shaft. The first rotating shaft is rotatably disposed on the safety ladder body. The crank is connected to the first rotating shaft to drive the first rotating shaft to rotate. The upper transmission assembly includes a second rotating shaft and a first connecting tooth. The transmission chain is disposed between the first rotating shaft and the second rotating shaft. The first rotating shaft drives the second rotating shaft to rotate through the transmission chain. A second connecting tooth is formed on the sliding part. The first connecting tooth meshes with the second connecting tooth. The second rotating shaft drives the sliding part to slide relative to the fixed part through the first connecting tooth and the second connecting tooth.

[0015] This utility model has the following beneficial effects: In summary, this invention, by incorporating an anti-tipping fixing ring that can switch between a first and a second state under the drive of a driving device, allows the anti-tipping fixing ring to be hung on a fixed pipe at a high location during use. Since the anti-tipping fixing ring is connected to the safety ladder body, it prevents the safety ladder body from tipping over, thus preventing falls from heights caused by ladder slippage or tilting during work. Furthermore, the various structures on the driving device allow the user to operate the anti-tipping fixing ring from the ground. Finally, the locking structure ensures the stability of the anti-tipping fixing ring.

[0016] The above description is merely an overview of the present utility model. In order to better understand the present utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 Axonometric structural diagram of a safety ladder designed to prevent tilting.

[0019] Figure 2 A partial structural diagram of the safety ladder designed to prevent tilting.

[0020] Figure 3 for Figure 1 A schematic diagram of the axial structure of the fixing part of the anti-tilting safety ladder.

[0021] Figure 4 for Figure 3 A schematic diagram of the axial structure of the centrally fixed steel ring.

[0022] Figure 5 This is a schematic diagram of the lower transmission assembly.

[0023] Figure 6 This is a schematic diagram of the upper transmission assembly.

[0024] The attached diagram lists the components represented by each number as follows: Reference numerals: 10. Safety ladder body; 20. Anti-tipping fixing ring; 21. Fixing part; 211. First through hole; 22. Sliding part; 221. Protruding limiting part; 222. Second connecting tooth; 223. Second through hole; 23. Opening; 24. Anti-slip frame; 241. Connecting frame; 242. Anti-slip layer; 30. Drive device; 31. Lower transmission assembly; 311. Handle; 312. First rotating shaft; 32. Upper transmission assembly; 321. Second rotating shaft; 322. First connecting tooth; 33. Transmission chain; 40. Locking structure; 41. Pin; 42. Wrench; 43. Connecting rod; 44. Support column; 45. Tilter; 46. Elastic element. Detailed Implementation

[0025] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the present utility model will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0026] This utility model is an anti-tipping safety ladder. When working at height, the ladder can use fixed pipes at a high place to prevent safety accidents caused by the ladder slipping or tilting.

[0027] Utility model such Figure 1 As shown, the anti-tipping safety ladder provided in this embodiment includes a safety ladder body 10, an anti-tipping fixing ring 20, and a drive device 30. The anti-tipping fixing ring 20 and the drive device 30 are disposed on the safety ladder body 10. The drive device 30 is connected to the anti-tipping fixing ring 20, causing the anti-tipping fixing ring 20 to have a first state and a second state. In the first state, an opening 23 is formed on the anti-tipping fixing ring 20; in the second state, the anti-tipping fixing ring 20 is closed.

[0028] In this embodiment, when an anti-tipping safety ladder is needed for high-altitude operations, the anti-tipping fixing ring 20 can first be put into the first state by the drive device 30, and the safety ladder body 10 can be erected. Then, the fixed pipe at the high place in the work site can be inserted into the anti-tipping fixing ring 20 through the opening. Finally, the anti-tipping fixing ring 20 can be put into the second state by the drive device 30, that is, the opening is closed. At this time, the anti-tipping fixing ring 20 can be hung on the fixed pipe at the high place. Since the anti-tipping fixing ring 20 is connected to the safety ladder body 10, the safety ladder body 10 can be prevented from tipping over, so as to prevent the safety accident caused by the ladder slipping or tilting during high-altitude operations.

[0029] Furthermore, in this embodiment, the safety ladder body 10 can be a common ladder structure, and the structure of the safety ladder body 10 will not be described in detail here.

[0030] The anti-tipping fixing ring 20 is set on the top of the safety ladder body 10. The plane where the anti-tipping fixing ring 20 is located forms an angle with the plane where the safety ladder body 10 is located, so as to better fit it on the outside of the fixed pipe at a high place.

[0031] Please continue reading Figures 2 to 4 The anti-tipping fixing ring 20 includes a fixing part 21 and a sliding part 22. Both the fixing part 21 and the sliding part 22 are arranged in an arc shape, preferably in a semi-circular shape. The fixing part 21 is fixed to the safety ladder body 10, and the sliding part 22 is slidably disposed on the fixing part 21. In this embodiment, the two ends of the sliding part 22 are formed with a connecting end and a free end. The connecting end of the sliding part 22 extends into the fixing part 21, and the free end of the sliding part 22 can selectively extend into the fixing part 21 or protrude outside the fixing part 21. The driving device 30 is connected to the sliding part 22 to drive the sliding part 22 to move. When the anti-tipping fixing ring 20 is in the first state, an opening 23 is formed between the free end of the sliding part 22 and the fixing part 21; when the anti-tipping fixing ring 20 is in the second state, the free end of the sliding part 22 extends into the fixing part 21.

[0032] Furthermore, a protruding limiting part 221 is provided on the connecting end of the sliding part 22 to prevent the sliding part 22 from falling out of the fixing part 21.

[0033] Please continue to refer to Figure 3 An anti-slip bracket 24 is also provided inside the anti-tipping fixing ring 20. There are at least two anti-slip brackets 24, arranged opposite each other. Both ends of each anti-slip bracket 24 are connected to the inner ring of the fixing part 21. An angle is formed between the two anti-slip brackets 24. By providing the anti-slip brackets 24, when using the anti-tipping safety ladder, the fixed pipe can be clamped between the two anti-slip brackets 24 to prevent the anti-tipping safety ladder from sliding relative to the fixed pipe.

[0034] Furthermore, the anti-slip frame 24 includes a connecting frame 241 and an anti-slip layer 242 disposed on the connecting frame 241. Both ends of the connecting frame 241 are connected to the inner ring of the fixing part 21, and the anti-slip layer 242 covers the outside of the connecting frame 241.

[0035] Please continue to refer to Figure 2 , Figure 5 and Figure 6In this embodiment, the drive device 30 includes a lower transmission assembly 31, an upper transmission assembly 32, and a transmission chain 33. The lower transmission assembly 31 and the upper transmission assembly 32 are mounted on the safety ladder body 10. Understandably, the upper transmission assembly 32 is positioned above the lower transmission assembly 31. The transmission chain 33 connects the upper transmission assembly 32 and the lower transmission assembly 31. The lower transmission assembly 31 is provided with a crank handle 311 and a first rotating shaft 312. The first rotating shaft 312 is rotatably mounted on the safety ladder body 10, and the crank handle 311 is connected to the first rotating shaft 312 to drive the first rotating shaft 312 to rotate. The upper transmission assembly 32 includes a second rotating shaft 321 and a first connecting tooth 322, with the first connecting tooth 322 mounted on the second rotating shaft 321. The transmission chain 33 is positioned between the first rotating shaft 312 and the second rotating shaft 321, and the first rotating shaft 312 drives the second rotating shaft 321 to rotate via the transmission chain 33. A second connecting tooth 222 is formed on the sliding part 22, and the first connecting tooth 322 meshes with the second connecting tooth 222. The second rotating shaft 321 drives the sliding part 22 to slide relative to the fixed part 21 through the first connecting tooth 322 and the second connecting tooth 222, so that the anti-tipping fixing ring 20 changes between the first state and the second state. With the arrangement of the upper transmission assembly 32 and the lower transmission assembly 31, the user can stand on the ground to complete the change of the anti-tipping fixing ring 20 between the first state and the second state.

[0036] Furthermore, please continue to refer to Figure 1 and Figure 2 The anti-tipping safety ladder also includes a locking structure 40, which is disposed on the ladder body 10. When the anti-tipping fixing ring 20 is in the second state, the locking structure 40 locks the anti-tipping fixing ring 20 to prevent relative movement between the sliding part 22 and the fixing part 21. By providing the locking structure 40, the free end of the sliding part 22 can be prevented from detaching from the fixing part 21 during use, thus improving the safety performance of the anti-tipping safety ladder.

[0037] More specifically, the locking structure 40 includes a pin 41, a first through hole 211 is provided on the safety ladder body 10 and the fixing part 21, and a second through hole 223 is provided on the sliding part 22. The pin 41 passes through the first through hole 211 and extends into the second through hole 223 to fix the sliding part 22 in the fixing part 21.

[0038] Furthermore, the second through hole 223 can be provided at the free end of the sliding part 22, and there can be multiple second through holes 223, which are spaced apart along the circumference of the sliding part 22. The provision of multiple second through holes 223 facilitates adjustment of the depth to which the free end of the sliding part 22 extends into the fixing part 21.

[0039] Furthermore, to facilitate user adjustment of the locking structure 40 while standing on the ground, in this embodiment, the locking structure 40 also includes a wrench 42, a connecting rod 43, a support column 44, a rocker arm 45, and an elastic element 46. The wrench 42 is hinged to the safety ladder body 10. One end of the connecting rod 43 is hinged to the wrench 42, and the other end is hinged to the pin 41. The support column 44 is disposed on the safety ladder body 10, and the middle portion of the rocker arm 45 is hinged to the support column 44. The elastic element 46 connects one end of the rocker arm 45 to the safety ladder body 10, and the other end is connected to the pin 41.

[0040] like Figure 2 As shown, when using the locking structure 40, the wrench 42 can be pulled upwards, causing the connecting rod 43 to move upwards. Since the end of the connecting rod 43 away from the pin 41 is hinged to the pin 41, the connecting rod 43 applies pressure to the pin 41, causing the pin 41 to move towards the second through hole 223, thus inserting the pin 41 into the second through hole 223. At the same time, the end of the lever 45 connected to the pin 41 tilts upwards, causing the elastic element 46 to deform and store elastic energy. When the wrench 42 is vertically set upwards, the wrench 42 can remain vertical due to the friction between the pin 41 and the side walls of the first through hole 211 and the second through hole 223, and the pin 41 continuously locks the sliding part 22 and the fixed part 21. When the wrench 42 is pulled downwards, the pin 41 can disengage from the first through hole 211 and the second through hole 223. At this time, the elastic element 46 releases its elastic energy, pulling the rocker arm 45, causing the end of the rocker arm 45 connected to the pin 41 to lift up, in order to assist the pin 41 in resetting.

[0041] In summary, in this invention, by setting up the anti-tipping fixing ring 20, and enabling the anti-tipping fixing ring 20 to switch between a first state and a second state under the drive of the drive device 30, the anti-tipping fixing ring 20 can be hung on a fixed pipe at a high place during use. Since the anti-tipping fixing ring 20 is connected to the safety ladder body 10, it can prevent the safety ladder body 10 from tipping over, thereby achieving the purpose of preventing safety accidents caused by the ladder slipping or tilting during climbing operations. Furthermore, through the setting of various structures on the drive device 30, the user can operate the anti-tipping fixing ring 20 while standing on the ground. Furthermore, through the setting of the locking structure 40, the stability of the anti-tipping fixing ring 20 can be guaranteed.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A tipping-proof safety ladder, characterized in that: The system includes a safety ladder body, an anti-tipping fixing ring, and a drive device. The anti-tipping fixing ring and the drive device are disposed on the safety ladder body. The drive device is connected to the anti-tipping fixing ring, and the anti-tipping fixing ring has a first state and a second state. In the first state, an opening is formed on the anti-tipping fixing ring, and in the second state, the anti-tipping fixing ring is closed.

2. The anti-tipping safety ladder according to claim 1, characterized in that: The anti-tipping fixing ring is disposed on the top of the safety ladder body, and the plane on which the anti-tipping fixing ring is located forms an angle with the plane on which the safety ladder body is located.

3. The anti-tipping safety ladder according to claim 1, characterized in that: The anti-tipping fixing ring includes a fixing part and a sliding part, both of which are arranged in an arc shape. The fixing part is fixed to the safety ladder body, and the sliding part is slidably disposed on the fixing part. The two ends of the sliding part are formed with a connecting end and a free end. The connecting end of the sliding part extends into the fixing part, and the free end of the sliding part can selectively extend into the fixing part or protrude outside the fixing part. The driving device is connected to the sliding part to drive the sliding part to move.

4. The anti-tipping safety ladder according to claim 3, characterized in that: The connecting end of the sliding part is also provided with a protruding limiting part to prevent the sliding part from falling out of the fixed part.

5. The anti-tipping safety ladder according to claim 3, characterized in that: The anti-tipping safety ladder also includes a locking structure, which is disposed on the safety ladder body to lock the anti-tipping fixing ring when the anti-tipping fixing ring is in the second state, so as to prevent the sliding part from moving relative to the fixing part.

6. The anti-tipping safety ladder according to claim 5, characterized in that: The locking structure includes a pin, a first through hole is provided on the safety ladder body and the fixed part, and a second through hole is provided on the sliding part. The pin passes through the first through hole and extends into the second through hole to fix the sliding part in the fixed part.

7. The anti-tipping safety ladder according to claim 6, characterized in that: The second through hole can be provided at the free end of the sliding part, and there can be multiple second through holes, which are spaced apart along the circumference of the sliding part.

8. The anti-tipping safety ladder according to claim 6, characterized in that: The locking structure further includes a wrench, a connecting rod, a support column, a rocker arm, and an elastic element. The wrench is hinged to the safety ladder body. One end of the connecting rod is hinged to the wrench, and the other end is hinged to the pin. The support column is disposed on the safety ladder body. The middle part of the rocker arm is hinged to the support column. The elastic element is connected between one end of the rocker arm and the safety ladder body, and the other end is connected to the pin.

9. The anti-tipping safety ladder according to claim 3, characterized in that: An anti-slip frame is also provided inside the anti-tipping fixing ring. The anti-slip frame includes a connecting frame and an anti-slip layer disposed on the connecting frame. There are at least two anti-slip frames, which are arranged opposite each other. Both ends of each anti-slip frame are connected to the inner ring of the fixing part. An angle is formed between the two anti-slip frames. The anti-slip layer covers the outside of the connecting frame.

10. The anti-tipping safety ladder according to claim 3, characterized in that: The driving device includes a lower transmission assembly, an upper transmission assembly, and a transmission chain. The lower transmission assembly and the upper transmission assembly are disposed on the safety ladder body. The transmission chain connects the upper transmission assembly and the lower transmission assembly. The lower transmission assembly is provided with a crank and a first rotating shaft. The first rotating shaft is rotatably disposed on the safety ladder body. The crank is connected to the first rotating shaft to drive the first rotating shaft to rotate. The upper transmission assembly includes a second rotating shaft and a first connecting tooth. The transmission chain is disposed between the first rotating shaft and the second rotating shaft. The first rotating shaft drives the second rotating shaft to rotate through the transmission chain. A second connecting tooth is formed on the sliding part. The first connecting tooth meshes with the second connecting tooth. The second rotating shaft drives the sliding part to slide relative to the fixed part through the first connecting tooth and the second connecting tooth.

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