Guard cage vertical ladder stand

Abstract

The utility model provides a protective cage type vertical climbing ladder, including straight ladder, at least two U-shaped hoops are arranged along the length direction on the straight ladder and are uniformly distributed, both ends of U-shaped hoop are connected through hinged component with straight ladder, at least two U-shaped hoops are vertically hinged with at least two protective vertical rods and are uniformly distributed, all U-shaped hoops are connected into a whole and constitute the hoop protective net, locking piece is arranged on the hinged component, and the locking piece is matched with the unlocking piece, and the locking piece is used for the U-shaped hoop to rotate to the protective position perpendicular to the straight ladder, and the U-shaped hoop is fixed, and the unlocking piece is used for unlocking, the utility model discloses the U-shaped hoop rotatablely connected on both sides of straight ladder through hinged component, and further makes the protective cage foldable to the adhesion straight ladder, greatly reduces the volume when transporting and storing, reduces the transportation and storage cost, also avoids the knock deformation of exposed structure during the carrying process, can also avoid the formation barrier in personnel passageway or equipment area, improves the space utilization.

Description

Technical Field

[0001] This utility model belongs to the field of fixed building technology, specifically relating to a protective cage-type upright climbing ladder. Background Technology

[0002] As a vertical access device, upright ladders are widely used in construction, power, communications and other fields for construction and equipment maintenance. According to relevant regulations, when the ladder section of an upright ladder reaches a certain height (generally ≥3 meters), a safety cage must be installed to ensure the safety of workers.

[0003] Existing ladders with protective cages typically use welding or bolting to fix the cages to the longitudinal columns of the ladder. However, this type of fixed protective cage structure is bulky and occupies a lot of space, increasing transportation and storage costs. Furthermore, because the protective cage structure is exposed, it is easily bumped and knocked during handling, which can lead to deformation and damage, affecting the safety performance of the ladder after installation. In addition, when the ladder is set up in personnel passageway or equipment operating area, the fixed protective cage will become an obstacle, hindering the transportation of materials, equipment maintenance and other operations. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a protective cage-type upright ladder that is easy to transport and store, safe and reliable, and saves space.

[0005] The technical solution adopted to solve the above-mentioned technical problems is: a protective cage-type vertical ladder, including a straight ladder, on which at least two evenly distributed U-shaped cage hoops are arranged along the length direction. The two ends of the U-shaped cage hoops are connected to the straight ladder through a hinge assembly. At least two evenly distributed protective uprights are vertically hinged to the at least two U-shaped cage hoops, connecting all the U-shaped cage hoops into one piece to form a cage hoop protective net. The hinge assembly is provided with a locking component, and the locking component is matched with an unlocking component. The locking component is used to fix the U-shaped cage hoop when it rotates to a protective position perpendicular to the straight ladder, and the unlocking component is used to release the lock.

[0006] As a preferred technical solution, the hinge assembly includes a U-shaped mounting base and a mounting plate. One side plate of the U-shaped mounting base is provided with a mounting ear at its upper end, and the other side plate is provided with a locking member on its outer side wall. The mounting ear is integrated with the U-shaped mounting base and connected to a straight ladder. One end of the mounting plate is hinged in the groove of the U-shaped mounting base, and the other end is connected to a U-shaped cage hoop. The locking member is used to lock the mounting plate when it rotates to be parallel to the side plate of the U-shaped mounting base.

[0007] As a preferred technical solution, the locking component includes a locking box, a rectangular sliding block, a pull rod, a locking rod, and a spring. The locking box is machined with a first sliding groove, a second sliding groove, and a third sliding groove connected in sequence. The first sliding groove is a rectangular groove, and the second and third sliding grooves are both cylindrical grooves. The diameter of the second sliding groove is less than the diameter of the third sliding groove. A rectangular sliding block is matched and disposed in the first sliding groove. A pull rod and a locking rod are connected in sequence to one side of the rectangular sliding block. The diameter of the pull rod is less than the diameter of the locking rod. A spring is fitted on the pull rod. One end of the spring is engaged with the stepped surface at the connection between the third and second sliding grooves, and the other end is engaged with the end face of the locking rod. The mounting plate is provided with a locking hole that matches the locking rod.

[0008] In the area where the first sliding groove is located, a pair of vertical sliding grooves are symmetrically arranged on the lid and bottom of the locking box. An oblique sliding groove is provided on the front side of the rectangular sliding block. The lower ends of the oblique sliding groove and the vertical sliding groove are coaxial. The locking rod is located in the locking hole, the spring is in a naturally extended state, the mounting plate is locked, the upper ends of the oblique sliding groove and the vertical sliding groove are coaxial, the locking rod retracts from the locking hole into the third sliding groove, the spring is compressed, and the mounting plate is unlocked.

[0009] As a preferred technical solution, the unlocking component includes a guide rod, a front limiting head, and a rear limiting head. One end of the guide rod passes through a vertical sliding groove on the lid, an oblique sliding groove, and a vertical sliding groove on the bottom of the box in sequence. The front limiting head and the rear limiting head are respectively located at both ends of the guide rod.

[0010] As a preferred technical solution, pull rings are symmetrically arranged on the upper and lower sides of the front limit head and the upper and lower sides of the rear limit head. The pull rings of adjacent front limit heads on the straight ladder are connected by branch pull ropes, and the pull rings of adjacent rear limit heads are connected by branch pull ropes, so that the guide rods (10-1) of all unlocking parts are connected in series. The pull rings of the uppermost front limit head and rear limit head are provided with main pull ropes, and the main pull ropes are connected with buckles. An installation ring is provided at the upper end of the straight ladder. When the main pull rope is pulled up to connect the buckle with the installation ring, the guide rods of all unlocking parts are moved up and located at the upper end of the vertical sliding groove for unified unlocking of the U-shaped cage hoop.

[0011] As a preferred technical solution, the uppermost end of the straight ladder is equipped with a reinforcing rope, and the uppermost U-shaped cage hoop is equipped with a connecting ring. When the cage hoop protective net rotates to the protective position, the reinforcing rope is connected to the connecting ring.

[0012] As a preferred technical solution, the protective uprights located on the side of the U-shaped cage hoop are hinged to the U-shaped cage hoop by a pin, and the protective uprights located on the front of the U-shaped cage hoop are hinged to the U-shaped cage hoop by a first hinge member. The first hinge member includes a first right-angle plate and a second right-angle plate. One side plate of the first right-angle plate is used to connect with the U-shaped cage hoop, and the other side plate is hinged to one side plate of the second right-angle plate. The other side plate of the second right-angle plate is used to connect with the protective uprights. One corner of the other side plate of the first right-angle plate is arc-shaped, serving as the rotation path of the second right-angle plate.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention uses a hinged assembly to rotatably connect a U-shaped cage hoop to both sides of a straight ladder, allowing the protective cage to be folded to fit snugly against the ladder. This significantly reduces the volume during transportation and storage, lowering transportation and storage costs, and preventing deformation caused by exposed structures during handling. It also avoids obstructing personnel passages or equipment areas, improving space utilization. By incorporating a locking mechanism on the hinged assembly, the U-shaped cage hoop is automatically locked when rotated to a protective position perpendicular to the ladder axis, ensuring the stability of the protective cage after unfolding. This enhances the safety and ease of use of the ladder. Through the synergistic action of the locking and unlocking mechanisms, the protective cage achieves efficient deployment and stable protection.

[0015] This invention uses multiple protective uprights hinged to the outer periphery of a U-shaped cage hoop, allowing the protective uprights to fold or unfold with the U-shaped cage hoop, reducing storage volume and adapting to the needs of different operating scenarios. After unfolding with the U-shaped cage hoop, the protective uprights can form a cage hoop protective net structure together with it, further improving the safety and reliability of the protective cage and adapting to the needs of different operating scenarios. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the protective cage-type upright climbing ladder of this utility model.

[0017] Figure 2 This is a structural schematic diagram of the hinge assembly 4 and the locking element 5 of this utility model.

[0018] Figure 3 This is a cross-sectional schematic diagram of the hinge assembly 4 and the locking member 5 of this utility model.

[0019] Figure 4 This is a structural schematic diagram of the first hinge member 6 of this utility model.

[0020] In the diagram: 1. Straight ladder; 2. U-shaped cage hoop; 3. Protective upright; 4. Hinged assembly; 4-1. U-shaped mounting base; 4-2. Mounting ear; 4-3. Mounting plate; 5. Locking component; 5-1. Vertical slide groove; 5-2. Rectangular sliding block; 5-3. Inclined slide groove; 5-4. Locking rod; 5-5. Spring; 5-6. Pull rod; 6. First hinge component; 6-1. First right angle plate; 6-2. Second right angle plate; 7. Reinforcing rope; 8. Main pull rope; 9. Branch pull rope; 10. Unlocking component; 10-1. Guide rod; 10-2. Front limit head; 11. Mounting ring. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but the present invention is not limited to the following embodiments.

[0022] exist Figures 1-4 In this embodiment, the protective cage-type vertical ladder has at least two evenly distributed U-shaped cage hoops 2 along its length on the ladder 1. The two ends of the U-shaped cage hoops 2 are connected to the ladder 1. At least two U-shaped cage hoops 2 are vertically hinged with at least two evenly distributed protective uprights 3 via hinge assembly 4, connecting all U-shaped cage hoops 2 into a single unit to form a cage hoop protective net. The protective uprights 3 located on the side of the U-shaped cage hoop 2 are hinged to the U-shaped cage hoop 2 via pins, and the protective uprights 3 located on the front of the U-shaped cage hoop 2 are hinged to the U-shaped cage hoop 2 via a first hinge member 6. The first hinge member 6 includes a first right-angle plate 6-1 and a second right-angle plate 6-2. One side plate of the first right-angle plate 6-1 is used to connect to the U-shaped cage hoop 2, and the other side plate is hinged to one side plate of the second right-angle plate 6-2. The other side plate of the second right-angle plate 6-2 is used to connect to the protective uprights 3. One corner of the other side plate of the first right-angle plate 6-1 is arc-shaped, serving as the rotation path of the second right-angle plate 6-2. The protective uprights 3 can be folded and retracted with the U-shaped cage hoop 2, reducing the overall volume. A locking element 5 is installed on the hinge assembly 4, and an unlocking element 10 is installed on the locking element 5. The locking element 5 is used to fix the U-shaped cage hoop 2 when it rotates to the protective position perpendicular to the straight ladder 1, and the unlocking element 10 is used to unlock it.

[0023] The hinge assembly 4 in this embodiment includes a U-shaped mounting base 4-1, a mounting ear 4-2, and a mounting plate 4-3. The upper end of one side plate of the U-shaped mounting base 4-1 is machined with the mounting ear 4-2, and a locking member 5 is installed on the outer side wall of the other side plate. The mounting ear 4-2 is integrated with the U-shaped mounting base 4-1 and connected to the straight ladder 1. One end of the mounting plate 4-3 is hinged in the groove of the U-shaped mounting base 4-1, and the other end is connected to the U-shaped cage hoop 2. The locking member 5 is used to lock the mounting plate 4-3 when it rotates to be parallel to the side plate of the U-shaped mounting base 4-1.

[0024] The locking component 5 in this embodiment includes a locking box, a rectangular sliding block 5-2, a pull rod 5-6, a locking rod 5-4, and a spring 5-5. The locking box is machined with a first sliding groove, a second sliding groove, and a third sliding groove connected in sequence. The first sliding groove is a rectangular groove, and the second and third sliding grooves are both cylindrical grooves. The diameter of the second sliding groove is less than the diameter of the third sliding groove. The rectangular sliding block 5-2 is matched and disposed in the first sliding groove. The pull rod 5-6 and the locking rod 5-4 are connected in sequence to one side of the rectangular sliding block 5-2. The diameter of the pull rod 5-6 is less than the diameter of the locking rod 5-4. The spring 5-5 is fitted on the pull rod 5-6. One end of the spring 5-5 is stuck on the stepped surface at the connection between the third sliding groove and the second sliding groove, and the other end is stuck on the end face of the locking rod 5-4. The mounting plate 4-3 is machined with a locking hole that matches the locking rod 5-4.

[0025] In the area where the first sliding groove is located, a pair of vertical sliding grooves 5-1 are symmetrically arranged on the cover and bottom of the locking box. An oblique sliding groove 5-3 is machined on the front side of the rectangular sliding block 5-2. The oblique sliding groove 5-3 is coaxial with the lower end of the vertical sliding groove 5-1. The locking rod 5-4 is located in the locking hole. The spring 5-5 is in a naturally extended state. The mounting plate is locked. The oblique sliding groove 5-3 is coaxial with the upper end of the vertical sliding groove 5-1. The locking rod 5-4 retracts from the locking hole into the third sliding groove. The spring 5-5 is compressed. The mounting plate 4-3 is unlocked.

[0026] The unlocking component 10 in this embodiment includes a guide rod 10-1, a front limiting head 10-2, and a rear limiting head. One end of the guide rod 10-1 passes through the vertical sliding groove 5-1 on the box cover, the oblique sliding groove 5-3, and the vertical sliding groove 5-1 on the bottom of the box in sequence. The front limiting head 10-2 and the rear limiting head are respectively installed at both ends of the guide rod 10-1.

[0027] In this embodiment, pull rings are symmetrically installed on the upper and lower sides of the front limit head 10-2, and pull rings are symmetrically installed on the upper and lower sides of the rear limit head. The pull rings of adjacent front limit heads 10-2 on the straight ladder are connected by a pull rope 9, and the pull rings of adjacent rear limit heads are connected by a pull rope 9, so that the guide rods 10-1 of all unlocking parts 10 are connected in series. The pull rings of the uppermost front limit head 10-2 and rear limit head are provided with a main pull rope 8, and a buckle is connected to the main pull rope 8. An installation ring 11 is provided at the upper end of the straight ladder. When the main pull rope 8 is pulled up to connect the buckle with the installation ring 11, it drives the guide rods 10-1 of all unlocking parts 10 to move up and be located at the upper end of the vertical slide groove, which is used to unlock the U-shaped cage hoop 2 in a unified manner, avoiding the tedious process of unlocking one by one and improving the folding efficiency of the U-shaped cage hoop 2.

[0028] In this embodiment, the top of the straight ladder 1 is equipped with a reinforcing rope 7, and the top of the U-shaped cage hoop 2 is equipped with a connecting ring. When the cage hoop protective net rotates to the protective position, the reinforcing rope 7 connects with the connecting ring, which improves the stability of the cage hoop protective net in use and ensures the personal safety of climbers. It is especially suitable for high-load or vibration environments.

[0029] The working principle of this utility model is as follows:

[0030] During transportation and storage, the U-shaped cage hoop 2 is folded into a position flush with the straight ladder 1 via the hinge assembly 4. At this time, the protective uprights 3 also fold along with the U-shaped cage hoop 2, resulting in a compact overall structure that reduces space occupation and avoids deformation caused by impacts from exposed structures. In use, the U-shaped cage hoop 2 is rotated to a position perpendicular to the straight ladder 1, and the protective uprights 3 unfold accordingly, forming a complete cage hoop protective net to provide safety protection for climbers.

[0031] When the U-shaped cage hoop 2 rotates to the protective position perpendicular to the straight ladder 1, the locking rod 5-4 in the locking component 5 is inserted into the locking hole on the mounting plate under the preload of the spring 5-5, restricting the rotation of the U-shaped cage hoop 2, thereby fixing the U-shaped cage hoop 2 in the protective position and ensuring the stability of the protective cage. The locking process does not require manual operation and is automatically completed by the elastic force of the spring 5-5, which improves the convenience of operation and the reliability of protection.

[0032] When the protective cage needs to be folded, pull the main pull rope to connect the lock to the mounting ring 11 at the upper end of the straight ladder 1, which will drive the guide rods 10-1 of all unlocking parts 10 to move upward. When the guide rods 10-1 move upward, through the cooperation of the inclined slide groove 5-3 and the vertical slide groove 5-1, the locking rod 5-4 will retract from the locking hole into the third sliding groove of the locking box, compressing the spring 5-5, thereby unlocking the mounting plate 4-3, so that the U-shaped cage hoop 2 can rotate freely and realize the folding of the protective cage.

Claims

1. A protective cage-type upright ladder, comprising a straight ladder (1), characterized in that: At least two evenly distributed U-shaped cage hoops (2) are provided along the length of the straight ladder (1). The two ends of the U-shaped cage hoops (2) are connected to the straight ladder (1) through a hinge assembly (4). At least two evenly distributed protective uprights (3) are vertically hinged to the at least two U-shaped cage hoops (2), connecting all the U-shaped cage hoops (2) into one to form a cage hoop protective net. The hinge assembly (4) is provided with a locking part (5), and the locking part (5) is matched with an unlocking part (10). The locking part (5) is used to fix the U-shaped cage hoop (2) when it rotates to a protective position perpendicular to the straight ladder (1). The unlocking part (10) is used to unlock.

2. The protective cage-type upright ladder according to claim 1, characterized in that: The hinge assembly (4) includes a U-shaped mounting base (4-1) and a mounting plate (4-3). The upper end of one side plate of the U-shaped mounting base (4-1) is provided with a mounting ear (4-2), and the outer side wall of the other side plate is provided with a locking member (5). The mounting ear (4-2) is integrated with the U-shaped mounting base (4-1) and connected to the straight ladder (1). One end of the mounting plate (4-3) is hinged in the groove of the U-shaped mounting base (4-1), and the other end is connected to the U-shaped cage hoop (2). The locking member (5) is used to lock the mounting plate (4-3) when it rotates to be parallel to the side plate of the U-shaped mounting base (4-1).

3. The protective cage-type upright ladder according to claim 2, characterized in that: The locking component (5) includes a locking box, a rectangular sliding block (5-2), a pull rod (5-6), a locking rod (5-4), and a spring (5-5). The locking box is machined with a first sliding groove, a second sliding groove, and a third sliding groove connected in sequence. The first sliding groove is a rectangular groove, and the second and third sliding grooves are both cylindrical grooves. The diameter of the second sliding groove is less than the diameter of the third sliding groove. A rectangular sliding block (5-2) is matched and arranged in the first sliding groove. A pull rod (5-6) and a locking rod (5-4) are connected in sequence on one side of the rectangular sliding block (5-2). The diameter of the pull rod (5-6) is less than the diameter of the locking rod (5-4). A spring (5-5) is fitted on the pull rod (5-6). One end of the spring (5-5) is stuck on the step surface at the connection between the third sliding groove and the second sliding groove, and the other end is stuck on the end face of the locking rod (5-4). The mounting plate (4-3) is provided with a locking hole that matches the locking rod (5-4). In the area where the first sliding groove is located, a pair of vertical sliding grooves (5-1) are symmetrically arranged on the lid and bottom of the locking box. An oblique sliding groove (5-3) is arranged on the front side of the rectangular sliding block (5-2). The lower ends of the oblique sliding groove (5-3) and the vertical sliding groove (5-1) are coaxial. The locking rod (5-4) is located in the locking hole. The spring (5-5) is in a naturally extended state. The mounting plate is locked. The upper ends of the oblique sliding groove (5-3) and the vertical sliding groove (5-1) are coaxial. The locking rod (5-4) retracts from the locking hole into the third sliding groove. The spring (5-5) is compressed. The mounting plate is unlocked.

4. The protective cage-type upright ladder according to claim 3, characterized in that: The unlocking component (10) includes a guide rod (10-1), a front limiting head (10-2), and a rear limiting head. One end of the guide rod (10-1) passes through the vertical sliding groove on the box cover, the oblique sliding groove (5-3), and the vertical sliding groove on the bottom of the box in sequence. The front limiting head (10-2) and the rear limiting head are respectively set at both ends of the guide rod (10-1).

5. The protective cage-type upright ladder according to claim 4, characterized in that: Pull rings are symmetrically arranged on the upper and lower sides of the front limit head (10-2), and pull rings are symmetrically arranged on the upper and lower sides of the rear limit head. The pull rings of adjacent front limit heads (10-2) on the straight ladder are connected by a pull rope (9), and the pull rings of adjacent rear limit heads are connected by a pull rope (9), so that the guide rods (10-1) of all unlocking parts (10) are connected in series. The pull rings of the front limit head (10-2) and the rear limit head at the uppermost end are provided with a main pull rope (8), and a buckle is connected to the main pull rope (8). An installation ring (11) is provided at the upper end of the straight ladder. When the main pull rope (8) is pulled up to connect the buckle with the installation ring (11), the guide rods (10-1) of all unlocking parts (10) are moved up and located at the upper end of the vertical slide groove for unified unlocking of the U-shaped cage hoop (2).

6. The protective cage-type upright ladder according to claim 1, characterized in that: The top of the straight ladder (1) is equipped with a reinforcing rope (7), and the top of the U-shaped cage hoop (2) is equipped with a connecting ring. When the cage hoop protective net rotates to the protective position, the reinforcing rope (7) is connected to the connecting ring.

7. The protective cage-type upright ladder according to claim 1, characterized in that: The protective upright (3) located on the side of the U-shaped cage hoop (2) is hinged to the U-shaped cage hoop (2) by a pin. The protective upright (3) located on the front of the U-shaped cage hoop (2) is hinged to the U-shaped cage hoop (2) by a first hinge (6). The first hinge (6) includes a first right angle plate (6-1) and a second right angle plate (6-2). One side plate of the first right angle plate (6-1) is used to connect with the U-shaped cage hoop (2), and the other side plate is hinged to one side plate of the second right angle plate (6-2). The other side plate of the second right angle plate (6-2) is used to connect with the protective upright (3). One corner of the other side plate of the first right angle plate (6-1) is arc-shaped, serving as the rotation path of the second right angle plate (6-2).

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