Safety locking ladder for underground climbing
By designing a safety locking ladder for underground climbing operations, the problems of inconvenience, handling labor and safety hazards of "herring" ladder during underground climbing operations are solved, and a safer and more efficient operation process is achieved.
Patent Information
- Application Number
- CN202421518098.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-30
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-30
AI Technical Summary
In underground climbing operations, it is inconvenient to move, difficult to carry when using the "herringbone" ladder, and easy to touch the surrounding equipment, causing safety hazards.
A safety locking ladder for underground climbing is designed, including a hollow ladder rod, a locking control link, a pedal, a hook and a locking plate. Through the push of the locking control handle, the up and down movement of the ladder and the opening and closing of the locking plate are realized, ensuring safe and stable climbing and disengagement.
Due to its small size, light weight and easy to carry, this device reduces the labor intensity of workers, improves work efficiency, and greatly improves the safety of use through the safety locking function, effectively ensuring the safety of underground climbing operations.
Smart Images
Figure CN222823161U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of working safety tools, in particular to underground climbing working safety, and specifically is an underground climbing safety locking ladder. Background Art
[0002] Anchor nets and anchor cables are laid on the top of the newly developed tunnel. To prevent the anchor cables from falling and injuring people, anchor cable fall arresters need to be manually installed under each anchor cable. When installing anchor cable fall arresters, a "herringbone" ladder is required for high-altitude work. The "herringbone" ladder weighs 20 kg. When installing a large number of anchor cable fall arresters, it is not only inconvenient to move, but also laborious to carry. Moreover, since a stable triangular structure needs to be formed to ensure stable placement, especially at the top of the tunnel for later maintenance, facing the narrow working space, it is extremely inconvenient to use and carry the "herringbone" ladder, and it is easy to touch the surrounding equipment, causing safety hazards. Summary of the invention
[0003] The utility model provides an underground climbing safety locking ladder to solve the problems that when installing an anchor cable fall arrester for climbing work, the "herringbone" ladder is not only inconvenient to move, but also laborious to carry and easy to touch surrounding equipment, causing safety hazards.
[0004] The utility model is implemented by the following technical scheme: it comprises a hollow ladder rod, a locking operating link is movably installed in the ladder rod, footrests are arranged at intervals on both sides of the outside of the ladder rod, a hook is fixedly connected to the top of the ladder rod, and a locking plate which cooperates with the hook and is locked is rotatably installed on the top of the ladder rod; a longitudinal push rod is installed on the middle part of the outer side of the locking plate through a rotating shaft, a transverse push rod is loosely sleeved on the lower part of the longitudinal push rod, and a rotation margin of the longitudinal push rod is reserved between the longitudinal push rod and the transverse push rod; a nut for top-mounting the transverse push rod is arranged at the lower part of the longitudinal push rod, the nut is located below the transverse push rod, the transverse push rod passes through the ladder rod and is fixedly connected to the top of the locking operating link, and a push rod movable hole is arranged longitudinally on the ladder rod; a locking operating handle is rotatably installed on the lower part of the locking operating link through a ring sleeve, the locking operating handle extends from the ladder rod through the handle movable hole, and two handle fixing notches are respectively arranged at the top and the bottom of the handle movable hole.
[0005] When implemented, it includes a hollow ladder rod, the length of the ladder rod is 2~3.5m, which is suitable for the height of the anchor cable installation. The ladder rod is made of galvanized pipe, and a locking operating link is movably installed in the ladder rod. Footrests are arranged at intervals on both sides of the outside of the ladder rod as stepping points for the locking ladder. The footrests are made of φ12mm round steel and are arranged along the axial direction of the ladder rod. The footrests include a landing rod vertically fixed to the surface of the ladder rod, and the free end of the landing rod is integrally connected with an inclined footrest support rod. The landing rod and the footrest support rod form a stable triangular structure;
[0006] A hook is fixedly connected to the top of the ladder rod, and a locking plate that cooperates with the hook for locking is rotatably installed on the top of the ladder rod; a longitudinal push rod is installed on the middle part of the outer side of the locking plate through a rotating shaft, and the longitudinal axis push rod rotates along the rotating shaft during the up and down movement to avoid movement interference, and a buffer spring is installed on the outer sleeve of the longitudinal push rod, which is a compression spring for buffering when locking or unlocking, and a transverse push rod is installed downward;
[0007] A transverse push rod is loosely sleeved at the lower part of the longitudinal push rod, and a rotation margin of the longitudinal push rod is left between the longitudinal push rod and the transverse push rod, and a gap is left between the mounting ring of the transverse push rod and the longitudinal push rod; a nut for top-mounting the transverse push rod is provided at the lower part of the longitudinal push rod, and the nut is located below the transverse push rod and is used to top-mount the transverse push rod to prevent the mounting ring of the transverse push rod from slipping off the longitudinal push rod. The transverse push rod passes through the ladder rod and is fixedly connected to the top of the locking operating connecting rod. A push rod movable hole is longitudinally provided on the ladder rod, and the push rod movable hole is an oblong hole, and the length direction is consistent with the axial direction of the ladder rod;
[0008] The locking operating handle is rotatably installed on the lower part of the locking operating link through a ring sleeve. The locking operating handle can rotate in the horizontal direction relative to the locking operating link, but the two have no relative movement in the vertical direction. The locking operating handle extends from the ladder rod through the handle movable hole. The top and bottom of the handle movable hole are respectively provided with two handle fixing notches. When the locking operating handle is in the handle fixing notch in the low position, the transverse push rod is located at the lower part of the push rod movable hole; when the locking operating handle is in the handle fixing notch in the high position, the transverse push rod is located at the upper part of the push rod movable hole, ensuring that the locking operating link can move up and down in the ladder rod to realize the opening and closing of the locking plate. The handle movable hole is located at the lower part of the ladder rod, and a pedal is provided below the handle movable hole to ensure that there is a stepping point below the locking operating handle when in use to avoid accidentally stepping on the locking operating handle.
[0009] When in use, hang the hook on the anchor net and push the locking operating handle upward. The locking operating handle moves upward in the movable hole of the handle, and the locking operating handle drives the locking operating connecting rod to move upward. The horizontal push rod moves upward, and the longitudinal push rod moves upward while rotating at a small angle. There is a gap between the mounting ring of the horizontal push rod and the longitudinal push rod to allow a small angle rotation to occur. Push the locking plate upward to rotate and close, and the free end of the locking plate contacts and abuts against the hook tip of the hook to achieve locking to prevent unhooking. Turn the locking operating handle to make it stuck in the fixed notch of the high-position handle. The locking ladder is installed and can be operated.
[0010] When it is necessary to change the location of the operation, turn the locking operating handle to make it slide out from the high handle fixing card slot, pull the locking operating handle downward, the locking operating handle moves downward in the handle movable hole, the locking operating handle drives the locking operating connecting rod to move downward, the horizontal push rod moves downward, and the longitudinal push rod moves downward while rotating at a small angle. There is a gap between the mounting ring of the horizontal push rod and the longitudinal push rod to allow a small angle rotation to occur, pull the locking plate downward to rotate and open, the free end of the locking plate is away from the hook tip of the hook, the locking plate is opened, the locking ladder is removed, and the locking operating handle is rotated to make it stuck in the low handle fixing card slot.
[0011] Compared with the prior art, this application has the following beneficial effects:
[0012] The utility model provides a safety locking ladder for underground climbing. In actual use, it can be hung whenever needed, so that the operation is no longer restricted by space. The device is small in size, eliminating the hidden danger of collision between the ladder and the equipment when carried. It weighs only 5Kg and is easy to carry, which reduces the labor intensity of the operators and improves the work efficiency. In addition, the device is cleverly designed and powerful. Through the safety locking function, the safety of use is greatly improved, and the safety of underground climbing operations is effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 A schematic diagram showing the overall structure of the device.
[0014] Figure 2 A schematic diagram showing the overall structure of the device in a closed state.
[0015] Figure 3 Shows the lower front view of the device.
[0016] Figure 4 Shows a side view of the lower part of the device.
[0017] In the figure: 1-ladder rod, 2-hook, 3-locking plate, 4-locking operating link, 5-locking operating handle, 6-pedal, 7-rotating shaft, 8-longitudinal push rod, 9-push rod movable hole, 10-lateral push rod, 11-buffer spring, 12-handle movable hole, 1201-handle fixing card missing, 13-nut. DETAILED DESCRIPTION
[0018] The utility model is described below in conjunction with specific embodiments.
[0019] A kind of underground climbing safety locking ladder, such as Figures 1 to 4As shown: it includes a hollow ladder rod 1, the length of the ladder rod 1 is 3m, which is suitable for the height of the anchor cable installation. The ladder rod 1 is made of galvanized pipe. A locking operating link 4 is movably installed in the ladder rod 1. Footrests 6 are arranged at intervals on both sides of the outside of the ladder rod 1 as stepping points for the locking ladder. The footrests 6 are made of φ12mm round steel. The footrests 6 are arranged along the axial direction of the ladder rod. The footrests 6 include a landing rod vertically fixed to the surface of the ladder rod. The free end of the landing rod is integrally connected with an inclined footrest support rod. The landing rod and the footrest support rod form a stable triangular structure;
[0020] A hook 2 is fixedly connected to the top of the ladder bar 1, and a locking plate 3 that cooperates with the hook 2 for locking is rotatably installed on the top of the ladder bar 1; a longitudinal push rod 8 is installed on the middle part of the outer side of the locking plate 3 through a rotating shaft 7, and a buffer spring 11 is sheathed on the longitudinal push rod 8. The buffer spring 11 is a compression spring used for buffering when locking or unlocking, and a transverse push rod 10 is installed downwardly;
[0021] A transverse push rod 10 is loosely sleeved at the lower part of the longitudinal push rod 8, and a rotation margin of the longitudinal push rod 8 is left between the longitudinal push rod 8 and the transverse push rod 10, and a gap is left between the mounting ring of the transverse push rod 10 and the longitudinal push rod 8; a nut 13 for top-mounting the transverse push rod 10 is provided at the lower part of the longitudinal push rod 8, and the nut 13 is located below the transverse push rod 10, and is used to top-mount the transverse push rod 10 to prevent the mounting ring of the transverse push rod from slipping off the longitudinal push rod 8, and the transverse push rod 10 passes through the ladder rod 1 and is fixedly connected to the top of the locking operating link 4, and a push rod movable hole 9 is longitudinally provided on the ladder rod 1, and the push rod movable hole 9 is an oblong hole, and the length direction is consistent with the axial direction of the ladder rod 1;
[0022] The lower part of the locking operating link 4 is rotatably installed with a locking operating handle 5 through a ring sleeve. The locking operating handle 5 can be rotated in the horizontal direction relative to the locking operating link 4, but the two have no relative movement in the vertical direction. The locking operating handle 5 extends from the ladder rod 1 through the handle movable hole. The top and bottom of the handle movable hole 12 are respectively provided with two handle fixing notches 1201. When the locking operating handle 5 is in the handle fixing notch 1201 at the low position, the transverse push rod 10 is located at the lower part of the push rod movable hole 9; when the locking operating handle 5 is in the handle fixing notch 1201 at the high position, the transverse push rod 10 is located at the upper part of the push rod movable hole 9, ensuring that the locking operating link 4 can move up and down in the ladder rod 1 to realize the opening and closing of the locking plate 3. The handle movable hole 12 is located at the lower part of the ladder rod 1, and a foot pedal 6 is provided below the handle movable hole 12 to ensure that there is a stepping point below the locking operating handle when in use to avoid accidentally stepping on the locking operating handle 5.
[0023] When in use, hang the hook 2 on the anchor net and push the locking operating handle 5 upward. The locking operating handle 5 moves upward in the handle movable hole 12, and the locking operating handle 5 drives the locking operating link 4 to move upward, and the transverse push rod 10 moves upward. The longitudinal push rod 8 moves upward and rotates at a small angle. There is a gap between the mounting ring of the transverse push rod 10 and the longitudinal push rod 8 to allow a small angle rotation to occur. Push the locking plate 3 upward to rotate and close. The free end of the locking plate 3 contacts and abuts against the hook tip of the hook 2 to achieve locking to prevent unhooking. Rotate the locking operating handle 5 to make it stuck in the high-position handle fixed card notch 1201. The locking ladder is installed and can be operated.
[0024] When it is necessary to change the location of the operation, rotate the locking operating handle 5 to make it slide out from the high handle fixed card notch 1201, pull the locking operating handle 5 downward, the locking operating handle 5 moves downward in the handle movable hole 12, the locking operating handle 5 drives the locking operating link 4 to move downward, the transverse push rod 10 moves downward, and the longitudinal push rod 8 moves downward while rotating at a small angle. There is a gap between the mounting ring of the transverse push rod 10 for installing the longitudinal push rod 8 and the longitudinal push rod 8, allowing a small angle rotation to occur, pull the locking plate 3 downward to rotate and open, the free end of the locking plate 3 is away from the hook tip of the hook 2, so that the locking plate is opened, remove the locking ladder, and rotate the locking operating handle 5 to make it stuck in the low handle fixed card notch 1201.
[0025] The scope of protection claimed by the present invention is not limited to the above specific implementation methods. For those skilled in the art, the present invention may have various deformations and changes. Any modification, improvement and equivalent substitution made within the concept and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. An underground climbing safety locking ladder, characterized in that: The invention comprises a hollow ladder rod (1), wherein a locking operating link (4) is movably installed in the ladder rod (1), footrests (6) are arranged at intervals on both sides of the outside of the ladder rod (1), a hook (2) is fixedly connected to the top of the ladder rod (1), and a locking plate (3) which cooperates with the hook (2) for locking is rotatably installed on the top of the ladder rod (1); a longitudinal push rod (8) is installed at the middle part of the outer side of the locking plate (3) through a rotating shaft (7), a transverse push rod (10) is loosely sleeved at the lower part of the longitudinal push rod (8), and a rotation margin of the longitudinal push rod (8) is left between the longitudinal push rod (8) and the transverse push rod (10); the longitudinal push rod (8) and the transverse push rod (10) are fixedly connected to the top of the ladder rod (1), and a locking plate (3) which cooperates with the hook (2) for locking is rotatably installed on the top of the ladder rod (1); a longitudinal push rod (8) is installed at the middle part of the outer side of the locking plate (3) through a rotating shaft (7), and a transverse push rod (10) is loosely sleeved at the lower part of the longitudinal push rod (8), and a rotation margin of the longitudinal push rod (8) is left between the longitudinal push rod (8) and the transverse push rod (10); A nut (13) for mounting a transverse push rod (10) on top is provided at the lower part of the push rod (8), the nut (13) being located below the transverse push rod (10), the transverse push rod (10) passing through the ladder rod (1) and being fixedly connected to the top of a locking operating link (4), the ladder rod (1) having a push rod movable hole (9) longitudinally provided thereon; a locking operating handle (5) is rotatably mounted on the lower part of the locking operating link (4) through a ring sleeve, the locking operating handle (5) extending from the ladder rod (1) through the handle movable hole, and two handle fixing notches (1201) are respectively provided at the top and bottom of the handle movable hole (12).
2. The underground climbing safety locking ladder according to claim 1, characterized in that: When the locking operating handle (5) is in the handle fixing notch (1201) at a low position, the lateral push rod (10) is located at the bottom of the push rod movable hole (9); when the locking operating handle (5) is in the handle fixing notch (1201) at a high position, the lateral push rod (10) is located at the top of the push rod movable hole (9).
3. The underground climbing safety locking ladder according to claim 1 is characterized in that: The handle movable hole (12) is located at the lower part of the ladder rod (1), and a footrest (6) is provided below the handle movable hole (12).
4. The underground climbing safety locking ladder according to claim 1, characterized in that: A buffer spring (11) is sleeved outside the longitudinal push rod (8), and the buffer spring (11) is a compression spring.
5. The underground climbing safety locking ladder according to claim 1, characterized in that: The length of the ladder rod (1) is 2-3.5 m, and the ladder rod (1) is made of a galvanized pipe.
6. The underground climbing safety locking ladder according to claim 1, characterized in that: The footrest (6) is arranged axially along the ladder rod, and comprises a footrest rod vertically fixed to the surface of the ladder rod, wherein the free end of the footrest rod is integrally connected to an inclined footrest support rod.
7. The underground climbing safety locking ladder according to claim 6, characterized in that: The footrest (6) is made of φ12mm round steel.